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194dcd91e0
This is recommended by various specifications for such framerates, while for integer framerates we continue using centiframes to allow for some more accuracy. Using N means that no rounding error accumulates, eventually leading to outputting a packet with a different duration. Some tools such as MediaInfo determine that a stream is variable framerate if any packet has a different duration than the others, and there is no reason I can see for not using the full 4 bytes of resolution that the mp4 timescale offers. Example problematic pipeline: ``` videotestsrc num-buffers=5001 ! video/x-raw,framerate=60000/1001,width=320,height=240 ! \ videoconvert ! x264enc bitrate=80000 speed-preset=1 tune=zerolatency ! h264parse ! \ video/x-h264,profile=high-10 ! mp4mux ! filesink location="result2.mp4" ``` This results in a media file that MediaInfo detects as variable framerate because the 5000th packet has duration 99 instead of 100. With this patch, the timescale is 60000 and all packets have duration 1001. Related issue for context: https://bugzilla.gnome.org/show_bug.cgi?id=769041 Co-authored-by: Sebastian Dröge <sebastian@centricular.com> Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3049>
5804 lines
147 KiB
C
5804 lines
147 KiB
C
/* Quicktime muxer plugin for GStreamer
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* Copyright (C) 2008-2010 Thiago Santos <thiagoss@embedded.ufcg.edu.br>
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* Copyright (C) 2008 Mark Nauwelaerts <mnauw@users.sf.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/*
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* Unless otherwise indicated, Source Code is licensed under MIT license.
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* See further explanation attached in License Statement (distributed in the file
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* LICENSE).
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is furnished to do
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* so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "atoms.h"
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#include <string.h>
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#include <glib.h>
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#include <gst/gst.h>
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#include <gst/base/gstbytewriter.h>
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#include <gst/tag/tag.h>
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#include <gst/video/video.h>
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/*
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* Creates a new AtomsContext for the given flavor.
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*/
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AtomsContext *
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atoms_context_new (AtomsTreeFlavor flavor, gboolean force_create_timecode_trak)
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{
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AtomsContext *context = g_new0 (AtomsContext, 1);
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context->flavor = flavor;
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context->force_create_timecode_trak = force_create_timecode_trak;
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return context;
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}
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/*
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* Frees an AtomsContext and all memory associated with it
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*/
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void
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atoms_context_free (AtomsContext * context)
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{
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g_free (context);
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}
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/* -- creation, initialization, clear and free functions -- */
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#define SECS_PER_DAY (24 * 60 * 60)
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#define LEAP_YEARS_FROM_1904_TO_1970 17
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guint64
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atoms_get_current_qt_time (void)
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{
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gint64 curtime_s = g_get_real_time () / G_USEC_PER_SEC;
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/* FIXME this should use UTC coordinated time */
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return curtime_s + (((1970 - 1904) * (guint64) 365) +
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LEAP_YEARS_FROM_1904_TO_1970) * SECS_PER_DAY;
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}
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static void
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common_time_info_init (TimeInfo * ti)
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{
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ti->creation_time = ti->modification_time = atoms_get_current_qt_time ();
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ti->timescale = 0;
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ti->duration = 0;
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}
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static void
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atom_header_set (Atom * header, guint32 fourcc, gint32 size, gint64 ext_size)
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{
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header->type = fourcc;
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header->size = size;
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header->extended_size = ext_size;
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}
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static void
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atom_clear (Atom * atom)
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{
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}
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static void
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atom_full_init (AtomFull * full, guint32 fourcc, gint32 size, gint64 ext_size,
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guint8 version, guint8 flags[3])
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{
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atom_header_set (&(full->header), fourcc, size, ext_size);
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full->version = version;
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full->flags[0] = flags[0];
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full->flags[1] = flags[1];
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full->flags[2] = flags[2];
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}
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static void
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atom_full_clear (AtomFull * full)
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{
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atom_clear (&full->header);
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}
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static void
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atom_full_free (AtomFull * full)
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{
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atom_full_clear (full);
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g_free (full);
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}
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static guint32
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atom_full_get_flags_as_uint (AtomFull * full)
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{
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return full->flags[0] << 16 | full->flags[1] << 8 | full->flags[2];
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}
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static void
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atom_full_set_flags_as_uint (AtomFull * full, guint32 flags_as_uint)
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{
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full->flags[2] = flags_as_uint & 0xFF;
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full->flags[1] = (flags_as_uint & 0xFF00) >> 8;
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full->flags[0] = (flags_as_uint & 0xFF0000) >> 16;
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}
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static AtomInfo *
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build_atom_info_wrapper (Atom * atom, gpointer copy_func, gpointer free_func)
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{
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AtomInfo *info = NULL;
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if (atom) {
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info = g_new0 (AtomInfo, 1);
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info->atom = atom;
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info->copy_data_func = copy_func;
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info->free_func = free_func;
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}
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return info;
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}
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static GList *
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atom_info_list_prepend_atom (GList * ai, Atom * atom,
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AtomCopyDataFunc copy_func, AtomFreeFunc free_func)
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{
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if (atom)
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return g_list_prepend (ai,
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build_atom_info_wrapper (atom, copy_func, free_func));
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else
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return ai;
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}
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static void
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atom_info_list_free (GList * ai)
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{
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while (ai) {
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AtomInfo *info = (AtomInfo *) ai->data;
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info->free_func (info->atom);
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g_free (info);
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ai = g_list_delete_link (ai, ai);
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}
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}
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static AtomData *
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atom_data_new (guint32 fourcc)
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{
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AtomData *data = g_new0 (AtomData, 1);
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atom_header_set (&data->header, fourcc, 0, 0);
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return data;
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}
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static void
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atom_data_alloc_mem (AtomData * data, guint32 size)
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{
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g_free (data->data);
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data->data = g_new0 (guint8, size);
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data->datalen = size;
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}
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static AtomData *
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atom_data_new_from_data (guint32 fourcc, const guint8 * mem, gsize size)
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{
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AtomData *data = atom_data_new (fourcc);
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atom_data_alloc_mem (data, size);
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memcpy (data->data, mem, size);
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return data;
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}
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static AtomData *
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atom_data_new_from_gst_buffer (guint32 fourcc, const GstBuffer * buf)
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{
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AtomData *data = atom_data_new (fourcc);
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gsize size = gst_buffer_get_size ((GstBuffer *) buf);
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atom_data_alloc_mem (data, size);
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gst_buffer_extract ((GstBuffer *) buf, 0, data->data, size);
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return data;
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}
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static void
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atom_data_free (AtomData * data)
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{
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atom_clear (&data->header);
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g_free (data->data);
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g_free (data);
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}
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static AtomUUID *
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atom_uuid_new (void)
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{
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AtomUUID *uuid = g_new0 (AtomUUID, 1);
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atom_header_set (&uuid->header, FOURCC_uuid, 0, 0);
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return uuid;
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}
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static void
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atom_uuid_free (AtomUUID * data)
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{
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atom_clear (&data->header);
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g_free (data->data);
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g_free (data);
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}
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static void
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atom_ftyp_init (AtomFTYP * ftyp, guint32 major, guint32 version, GList * brands)
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{
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gint index;
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GList *it = NULL;
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atom_header_set (&ftyp->header, FOURCC_ftyp, 16, 0);
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ftyp->major_brand = major;
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ftyp->version = version;
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/* always include major brand as compatible brand */
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ftyp->compatible_brands_size = g_list_length (brands) + 1;
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ftyp->compatible_brands = g_new (guint32, ftyp->compatible_brands_size);
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ftyp->compatible_brands[0] = major;
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index = 1;
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for (it = brands; it != NULL; it = g_list_next (it)) {
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ftyp->compatible_brands[index++] = GPOINTER_TO_UINT (it->data);
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}
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}
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AtomFTYP *
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atom_ftyp_new (AtomsContext * context, guint32 major, guint32 version,
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GList * brands)
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{
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AtomFTYP *ftyp = g_new0 (AtomFTYP, 1);
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atom_ftyp_init (ftyp, major, version, brands);
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return ftyp;
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}
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void
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atom_ftyp_free (AtomFTYP * ftyp)
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{
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atom_clear (&ftyp->header);
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g_free (ftyp->compatible_brands);
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ftyp->compatible_brands = NULL;
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g_free (ftyp);
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}
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static void
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atom_esds_init (AtomESDS * esds)
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{
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guint8 flags[3] = { 0, 0, 0 };
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atom_full_init (&esds->header, FOURCC_esds, 0, 0, 0, flags);
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desc_es_init (&esds->es);
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}
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static AtomESDS *
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atom_esds_new (void)
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{
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AtomESDS *esds = g_new0 (AtomESDS, 1);
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atom_esds_init (esds);
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return esds;
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}
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static void
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atom_esds_free (AtomESDS * esds)
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{
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atom_full_clear (&esds->header);
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desc_es_descriptor_clear (&esds->es);
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g_free (esds);
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}
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static AtomFRMA *
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atom_frma_new (void)
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{
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AtomFRMA *frma = g_new0 (AtomFRMA, 1);
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atom_header_set (&frma->header, FOURCC_frma, 0, 0);
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return frma;
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}
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static void
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atom_frma_free (AtomFRMA * frma)
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{
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atom_clear (&frma->header);
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g_free (frma);
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}
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static AtomWAVE *
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atom_wave_new (void)
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{
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AtomWAVE *wave = g_new0 (AtomWAVE, 1);
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atom_header_set (&wave->header, FOURCC_wave, 0, 0);
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return wave;
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}
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static void
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atom_wave_free (AtomWAVE * wave)
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{
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atom_clear (&wave->header);
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atom_info_list_free (wave->extension_atoms);
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g_free (wave);
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}
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static void
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atom_elst_init (AtomELST * elst)
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{
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guint8 flags[3] = { 0, 0, 0 };
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atom_full_init (&elst->header, FOURCC_elst, 0, 0, 0, flags);
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elst->entries = 0;
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}
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static void
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atom_elst_clear (AtomELST * elst)
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{
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GSList *walker;
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atom_full_clear (&elst->header);
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walker = elst->entries;
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while (walker) {
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g_free ((EditListEntry *) walker->data);
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walker = g_slist_next (walker);
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}
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g_slist_free (elst->entries);
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}
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static void
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atom_edts_init (AtomEDTS * edts)
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{
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atom_header_set (&edts->header, FOURCC_edts, 0, 0);
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atom_elst_init (&edts->elst);
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}
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static void
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atom_edts_clear (AtomEDTS * edts)
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{
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atom_clear (&edts->header);
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atom_elst_clear (&edts->elst);
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}
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static AtomEDTS *
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atom_edts_new (void)
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{
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AtomEDTS *edts = g_new0 (AtomEDTS, 1);
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atom_edts_init (edts);
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return edts;
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}
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static void
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atom_edts_free (AtomEDTS * edts)
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{
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atom_edts_clear (edts);
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g_free (edts);
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}
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static void
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atom_tcmi_init (AtomTCMI * tcmi)
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{
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guint8 flags[3] = { 0, 0, 0 };
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atom_full_init (&tcmi->header, FOURCC_tcmi, 0, 0, 0, flags);
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}
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static void
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atom_tcmi_clear (AtomTCMI * tcmi)
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{
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atom_full_clear (&tcmi->header);
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tcmi->text_font = 0;
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tcmi->text_face = 0;
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tcmi->text_size = 0;
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tcmi->text_color[0] = 0;
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tcmi->text_color[1] = 0;
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tcmi->text_color[2] = 0;
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tcmi->bg_color[0] = 0;
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tcmi->bg_color[1] = 0;
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tcmi->bg_color[2] = 0;
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g_free (tcmi->font_name);
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tcmi->font_name = NULL;
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}
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static AtomTMCD *
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atom_tmcd_new (void)
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{
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AtomTMCD *tmcd = g_new0 (AtomTMCD, 1);
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atom_header_set (&tmcd->header, FOURCC_tmcd, 0, 0);
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atom_tcmi_init (&tmcd->tcmi);
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return tmcd;
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}
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static void
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atom_tmcd_free (AtomTMCD * tmcd)
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{
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atom_clear (&tmcd->header);
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atom_tcmi_clear (&tmcd->tcmi);
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g_free (tmcd);
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}
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static void
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atom_gmin_init (AtomGMIN * gmin)
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{
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guint8 flags[3] = { 0, 0, 0 };
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atom_full_init (&gmin->header, FOURCC_gmin, 0, 0, 0, flags);
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}
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static void
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atom_gmin_clear (AtomGMIN * gmin)
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{
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atom_full_clear (&gmin->header);
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gmin->graphics_mode = 0;
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gmin->opcolor[0] = 0;
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gmin->opcolor[1] = 0;
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gmin->opcolor[2] = 0;
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gmin->balance = 0;
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gmin->reserved = 0;
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}
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static void
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atom_gmhd_init (AtomGMHD * gmhd)
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{
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atom_header_set (&gmhd->header, FOURCC_gmhd, 0, 0);
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atom_gmin_init (&gmhd->gmin);
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}
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static void
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atom_gmhd_clear (AtomGMHD * gmhd)
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{
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atom_clear (&gmhd->header);
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atom_gmin_clear (&gmhd->gmin);
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if (gmhd->tmcd) {
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atom_tmcd_free (gmhd->tmcd);
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gmhd->tmcd = NULL;
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}
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}
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static AtomGMHD *
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atom_gmhd_new (void)
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{
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AtomGMHD *gmhd = g_new0 (AtomGMHD, 1);
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atom_gmhd_init (gmhd);
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return gmhd;
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}
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|
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static void
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atom_gmhd_free (AtomGMHD * gmhd)
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{
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atom_gmhd_clear (gmhd);
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g_free (gmhd);
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}
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|
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static void
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atom_nmhd_init (AtomNMHD * nmhd)
|
|
{
|
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atom_header_set (&nmhd->header, FOURCC_nmhd, 0, 0);
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nmhd->flags = 0;
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}
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|
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static void
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atom_nmhd_clear (AtomNMHD * nmhd)
|
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{
|
|
atom_clear (&nmhd->header);
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}
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|
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static AtomNMHD *
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atom_nmhd_new (void)
|
|
{
|
|
AtomNMHD *nmhd = g_new0 (AtomNMHD, 1);
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|
atom_nmhd_init (nmhd);
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|
return nmhd;
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}
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|
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static void
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atom_nmhd_free (AtomNMHD * nmhd)
|
|
{
|
|
atom_nmhd_clear (nmhd);
|
|
g_free (nmhd);
|
|
}
|
|
|
|
static void
|
|
atom_sample_entry_init (SampleTableEntry * se, guint32 type)
|
|
{
|
|
atom_header_set (&se->header, type, 0, 0);
|
|
|
|
memset (se->reserved, 0, sizeof (guint8) * 6);
|
|
se->data_reference_index = 0;
|
|
}
|
|
|
|
static void
|
|
atom_sample_entry_free (SampleTableEntry * se)
|
|
{
|
|
atom_clear (&se->header);
|
|
}
|
|
|
|
static void
|
|
sample_entry_mp4a_init (SampleTableEntryMP4A * mp4a)
|
|
{
|
|
atom_sample_entry_init (&mp4a->se, FOURCC_mp4a);
|
|
|
|
mp4a->version = 0;
|
|
mp4a->revision_level = 0;
|
|
mp4a->vendor = 0;
|
|
mp4a->channels = 2;
|
|
mp4a->sample_size = 16;
|
|
mp4a->compression_id = 0;
|
|
mp4a->packet_size = 0;
|
|
mp4a->sample_rate = 0;
|
|
/* following only used if version is 1 */
|
|
mp4a->samples_per_packet = 0;
|
|
mp4a->bytes_per_packet = 0;
|
|
mp4a->bytes_per_frame = 0;
|
|
mp4a->bytes_per_sample = 0;
|
|
|
|
mp4a->extension_atoms = NULL;
|
|
}
|
|
|
|
static SampleTableEntryMP4A *
|
|
sample_entry_mp4a_new (void)
|
|
{
|
|
SampleTableEntryMP4A *mp4a = g_new0 (SampleTableEntryMP4A, 1);
|
|
|
|
sample_entry_mp4a_init (mp4a);
|
|
return mp4a;
|
|
}
|
|
|
|
static void
|
|
sample_entry_mp4a_free (SampleTableEntryMP4A * mp4a)
|
|
{
|
|
atom_sample_entry_free (&mp4a->se);
|
|
atom_info_list_free (mp4a->extension_atoms);
|
|
g_free (mp4a);
|
|
}
|
|
|
|
static void
|
|
sample_entry_tmcd_init (SampleTableEntryTMCD * tmcd)
|
|
{
|
|
atom_sample_entry_init (&tmcd->se, FOURCC_tmcd);
|
|
|
|
tmcd->tc_flags = 0;
|
|
tmcd->timescale = 0;
|
|
tmcd->frame_duration = 0;
|
|
tmcd->n_frames = 0;
|
|
|
|
tmcd->name.language_code = 0;
|
|
g_free (tmcd->name.name);
|
|
tmcd->name.name = NULL;
|
|
}
|
|
|
|
static SampleTableEntryTMCD *
|
|
sample_entry_tmcd_new (void)
|
|
{
|
|
SampleTableEntryTMCD *tmcd = g_new0 (SampleTableEntryTMCD, 1);
|
|
|
|
sample_entry_tmcd_init (tmcd);
|
|
return tmcd;
|
|
}
|
|
|
|
static void
|
|
sample_entry_tmcd_free (SampleTableEntryTMCD * tmcd)
|
|
{
|
|
atom_sample_entry_free (&tmcd->se);
|
|
g_free (tmcd->name.name);
|
|
g_free (tmcd);
|
|
}
|
|
|
|
static void
|
|
sample_entry_mp4v_init (SampleTableEntryMP4V * mp4v, AtomsContext * context)
|
|
{
|
|
atom_sample_entry_init (&mp4v->se, FOURCC_mp4v);
|
|
|
|
mp4v->version = 0;
|
|
mp4v->revision_level = 0;
|
|
mp4v->vendor = 0;
|
|
|
|
mp4v->temporal_quality = 0;
|
|
mp4v->spatial_quality = 0;
|
|
|
|
/* qt and ISO base media do not contradict, and examples agree */
|
|
mp4v->horizontal_resolution = 0x00480000;
|
|
mp4v->vertical_resolution = 0x00480000;
|
|
|
|
mp4v->datasize = 0;
|
|
mp4v->frame_count = 1;
|
|
|
|
memset (mp4v->compressor, 0, sizeof (guint8) * 32);
|
|
|
|
mp4v->depth = 0;
|
|
mp4v->color_table_id = 0;
|
|
|
|
mp4v->extension_atoms = NULL;
|
|
}
|
|
|
|
static void
|
|
sample_entry_mp4v_free (SampleTableEntryMP4V * mp4v)
|
|
{
|
|
atom_sample_entry_free (&mp4v->se);
|
|
atom_info_list_free (mp4v->extension_atoms);
|
|
g_free (mp4v);
|
|
}
|
|
|
|
static SampleTableEntryMP4V *
|
|
sample_entry_mp4v_new (AtomsContext * context)
|
|
{
|
|
SampleTableEntryMP4V *mp4v = g_new0 (SampleTableEntryMP4V, 1);
|
|
|
|
sample_entry_mp4v_init (mp4v, context);
|
|
return mp4v;
|
|
}
|
|
|
|
static void
|
|
sample_entry_tx3g_init (SampleTableEntryTX3G * tx3g)
|
|
{
|
|
atom_sample_entry_init (&tx3g->se, FOURCC_tx3g);
|
|
|
|
tx3g->display_flags = 0;
|
|
tx3g->font_id = 1; /* must be 1 as there is a single font */
|
|
tx3g->font_face = 0;
|
|
tx3g->foreground_color_rgba = 0xFFFFFFFF; /* white, opaque */
|
|
|
|
/* can't set this now */
|
|
tx3g->default_text_box = 0;
|
|
tx3g->font_size = 0;
|
|
}
|
|
|
|
static void
|
|
sample_entry_tx3g_free (SampleTableEntryTX3G * tx3g)
|
|
{
|
|
atom_sample_entry_free (&tx3g->se);
|
|
g_free (tx3g);
|
|
}
|
|
|
|
static SampleTableEntryTX3G *
|
|
sample_entry_tx3g_new (void)
|
|
{
|
|
SampleTableEntryTX3G *tx3g = g_new0 (SampleTableEntryTX3G, 1);
|
|
|
|
sample_entry_tx3g_init (tx3g);
|
|
return tx3g;
|
|
}
|
|
|
|
|
|
static void
|
|
atom_stsd_init (AtomSTSD * stsd)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&stsd->header, FOURCC_stsd, 0, 0, 0, flags);
|
|
stsd->entries = NULL;
|
|
stsd->n_entries = 0;
|
|
}
|
|
|
|
static void
|
|
atom_stsd_remove_entries (AtomSTSD * stsd)
|
|
{
|
|
GList *walker;
|
|
|
|
walker = stsd->entries;
|
|
while (walker) {
|
|
GList *aux = walker;
|
|
SampleTableEntry *se = (SampleTableEntry *) aux->data;
|
|
|
|
walker = g_list_next (walker);
|
|
stsd->entries = g_list_remove_link (stsd->entries, aux);
|
|
|
|
switch (se->kind) {
|
|
case AUDIO:
|
|
sample_entry_mp4a_free ((SampleTableEntryMP4A *) se);
|
|
break;
|
|
case VIDEO:
|
|
sample_entry_mp4v_free ((SampleTableEntryMP4V *) se);
|
|
break;
|
|
case SUBTITLE:
|
|
sample_entry_tx3g_free ((SampleTableEntryTX3G *) se);
|
|
break;
|
|
case TIMECODE:
|
|
sample_entry_tmcd_free ((SampleTableEntryTMCD *) se);
|
|
break;
|
|
case CLOSEDCAPTION:
|
|
default:
|
|
/* best possible cleanup */
|
|
atom_sample_entry_free (se);
|
|
}
|
|
g_list_free (aux);
|
|
}
|
|
stsd->n_entries = 0;
|
|
}
|
|
|
|
static void
|
|
atom_stsd_clear (AtomSTSD * stsd)
|
|
{
|
|
atom_stsd_remove_entries (stsd);
|
|
atom_full_clear (&stsd->header);
|
|
}
|
|
|
|
static void
|
|
atom_ctts_init (AtomCTTS * ctts)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&ctts->header, FOURCC_ctts, 0, 0, 0, flags);
|
|
atom_array_init (&ctts->entries, 128);
|
|
ctts->do_pts = FALSE;
|
|
}
|
|
|
|
static AtomCTTS *
|
|
atom_ctts_new (void)
|
|
{
|
|
AtomCTTS *ctts = g_new0 (AtomCTTS, 1);
|
|
|
|
atom_ctts_init (ctts);
|
|
return ctts;
|
|
}
|
|
|
|
static void
|
|
atom_ctts_free (AtomCTTS * ctts)
|
|
{
|
|
atom_full_clear (&ctts->header);
|
|
atom_array_clear (&ctts->entries);
|
|
g_free (ctts);
|
|
}
|
|
|
|
/* svmi is specified in ISO 23000-11 (Stereoscopic video application format)
|
|
* MPEG-A */
|
|
static void
|
|
atom_svmi_init (AtomSVMI * svmi)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&svmi->header, FOURCC_svmi, 0, 0, 0, flags);
|
|
svmi->stereoscopic_composition_type = 0x00;
|
|
svmi->is_left_first = FALSE;
|
|
}
|
|
|
|
AtomSVMI *
|
|
atom_svmi_new (guint8 stereoscopic_composition_type, gboolean is_left_first)
|
|
{
|
|
AtomSVMI *svmi = g_new0 (AtomSVMI, 1);
|
|
|
|
atom_svmi_init (svmi);
|
|
svmi->stereoscopic_composition_type = stereoscopic_composition_type;
|
|
svmi->is_left_first = is_left_first;
|
|
return svmi;
|
|
}
|
|
|
|
static void
|
|
atom_svmi_free (AtomSVMI * svmi)
|
|
{
|
|
g_free (svmi);
|
|
}
|
|
|
|
static void
|
|
atom_stts_init (AtomSTTS * stts)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&stts->header, FOURCC_stts, 0, 0, 0, flags);
|
|
atom_array_init (&stts->entries, 512);
|
|
}
|
|
|
|
static void
|
|
atom_stts_clear (AtomSTTS * stts)
|
|
{
|
|
atom_full_clear (&stts->header);
|
|
atom_array_clear (&stts->entries);
|
|
}
|
|
|
|
static void
|
|
atom_stsz_init (AtomSTSZ * stsz)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&stsz->header, FOURCC_stsz, 0, 0, 0, flags);
|
|
atom_array_init (&stsz->entries, 1024);
|
|
stsz->sample_size = 0;
|
|
stsz->table_size = 0;
|
|
}
|
|
|
|
static void
|
|
atom_stsz_clear (AtomSTSZ * stsz)
|
|
{
|
|
atom_full_clear (&stsz->header);
|
|
atom_array_clear (&stsz->entries);
|
|
stsz->table_size = 0;
|
|
}
|
|
|
|
static void
|
|
atom_stsc_init (AtomSTSC * stsc)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&stsc->header, FOURCC_stsc, 0, 0, 0, flags);
|
|
atom_array_init (&stsc->entries, 128);
|
|
}
|
|
|
|
static void
|
|
atom_stsc_clear (AtomSTSC * stsc)
|
|
{
|
|
atom_full_clear (&stsc->header);
|
|
atom_array_clear (&stsc->entries);
|
|
}
|
|
|
|
static void
|
|
atom_co64_init (AtomSTCO64 * co64)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&co64->header, FOURCC_stco, 0, 0, 0, flags);
|
|
|
|
co64->chunk_offset = 0;
|
|
co64->max_offset = 0;
|
|
atom_array_init (&co64->entries, 256);
|
|
}
|
|
|
|
static void
|
|
atom_stco64_clear (AtomSTCO64 * stco64)
|
|
{
|
|
atom_full_clear (&stco64->header);
|
|
atom_array_clear (&stco64->entries);
|
|
}
|
|
|
|
static void
|
|
atom_stss_init (AtomSTSS * stss)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&stss->header, FOURCC_stss, 0, 0, 0, flags);
|
|
atom_array_init (&stss->entries, 128);
|
|
}
|
|
|
|
static void
|
|
atom_stss_clear (AtomSTSS * stss)
|
|
{
|
|
atom_full_clear (&stss->header);
|
|
atom_array_clear (&stss->entries);
|
|
}
|
|
|
|
void
|
|
atom_stbl_init (AtomSTBL * stbl)
|
|
{
|
|
atom_header_set (&stbl->header, FOURCC_stbl, 0, 0);
|
|
|
|
atom_stts_init (&stbl->stts);
|
|
atom_stss_init (&stbl->stss);
|
|
atom_stsd_init (&stbl->stsd);
|
|
atom_stsz_init (&stbl->stsz);
|
|
atom_stsc_init (&stbl->stsc);
|
|
stbl->ctts = NULL;
|
|
stbl->svmi = NULL;
|
|
|
|
atom_co64_init (&stbl->stco64);
|
|
}
|
|
|
|
void
|
|
atom_stbl_clear (AtomSTBL * stbl)
|
|
{
|
|
atom_clear (&stbl->header);
|
|
atom_stsd_clear (&stbl->stsd);
|
|
atom_stts_clear (&stbl->stts);
|
|
atom_stss_clear (&stbl->stss);
|
|
atom_stsc_clear (&stbl->stsc);
|
|
atom_stsz_clear (&stbl->stsz);
|
|
if (stbl->ctts) {
|
|
atom_ctts_free (stbl->ctts);
|
|
}
|
|
if (stbl->svmi) {
|
|
atom_svmi_free (stbl->svmi);
|
|
}
|
|
atom_stco64_clear (&stbl->stco64);
|
|
}
|
|
|
|
static void
|
|
atom_vmhd_init (AtomVMHD * vmhd, AtomsContext * context)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 1 };
|
|
|
|
atom_full_init (&vmhd->header, FOURCC_vmhd, 0, 0, 0, flags);
|
|
vmhd->graphics_mode = 0x0;
|
|
memset (vmhd->opcolor, 0, sizeof (guint16) * 3);
|
|
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
vmhd->graphics_mode = 0x40;
|
|
vmhd->opcolor[0] = 32768;
|
|
vmhd->opcolor[1] = 32768;
|
|
vmhd->opcolor[2] = 32768;
|
|
}
|
|
}
|
|
|
|
static AtomVMHD *
|
|
atom_vmhd_new (AtomsContext * context)
|
|
{
|
|
AtomVMHD *vmhd = g_new0 (AtomVMHD, 1);
|
|
|
|
atom_vmhd_init (vmhd, context);
|
|
return vmhd;
|
|
}
|
|
|
|
static void
|
|
atom_vmhd_free (AtomVMHD * vmhd)
|
|
{
|
|
atom_full_clear (&vmhd->header);
|
|
g_free (vmhd);
|
|
}
|
|
|
|
static void
|
|
atom_smhd_init (AtomSMHD * smhd)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&smhd->header, FOURCC_smhd, 0, 0, 0, flags);
|
|
smhd->balance = 0;
|
|
smhd->reserved = 0;
|
|
}
|
|
|
|
static AtomSMHD *
|
|
atom_smhd_new (void)
|
|
{
|
|
AtomSMHD *smhd = g_new0 (AtomSMHD, 1);
|
|
|
|
atom_smhd_init (smhd);
|
|
return smhd;
|
|
}
|
|
|
|
static void
|
|
atom_smhd_free (AtomSMHD * smhd)
|
|
{
|
|
atom_full_clear (&smhd->header);
|
|
g_free (smhd);
|
|
}
|
|
|
|
static void
|
|
atom_hmhd_free (AtomHMHD * hmhd)
|
|
{
|
|
atom_full_clear (&hmhd->header);
|
|
g_free (hmhd);
|
|
}
|
|
|
|
static void
|
|
atom_hdlr_init (AtomHDLR * hdlr, AtomsContext * context)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&hdlr->header, FOURCC_hdlr, 0, 0, 0, flags);
|
|
|
|
hdlr->component_type = 0;
|
|
hdlr->handler_type = 0;
|
|
hdlr->manufacturer = 0;
|
|
hdlr->flags = 0;
|
|
hdlr->flags_mask = 0;
|
|
hdlr->name = g_strdup ("");
|
|
|
|
/* Store the flavor to know how to serialize the 'name' string */
|
|
hdlr->flavor = context->flavor;
|
|
}
|
|
|
|
static AtomHDLR *
|
|
atom_hdlr_new (AtomsContext * context)
|
|
{
|
|
AtomHDLR *hdlr = g_new0 (AtomHDLR, 1);
|
|
|
|
atom_hdlr_init (hdlr, context);
|
|
return hdlr;
|
|
}
|
|
|
|
static void
|
|
atom_hdlr_clear (AtomHDLR * hdlr)
|
|
{
|
|
atom_full_clear (&hdlr->header);
|
|
if (hdlr->name) {
|
|
g_free (hdlr->name);
|
|
hdlr->name = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_hdlr_free (AtomHDLR * hdlr)
|
|
{
|
|
atom_hdlr_clear (hdlr);
|
|
g_free (hdlr);
|
|
}
|
|
|
|
static void
|
|
atom_url_init (AtomURL * url)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 1 };
|
|
|
|
atom_full_init (&url->header, FOURCC_url_, 0, 0, 0, flags);
|
|
url->location = NULL;
|
|
}
|
|
|
|
static void
|
|
atom_url_free (AtomURL * url)
|
|
{
|
|
atom_full_clear (&url->header);
|
|
if (url->location) {
|
|
g_free (url->location);
|
|
url->location = NULL;
|
|
}
|
|
g_free (url);
|
|
}
|
|
|
|
static AtomURL *
|
|
atom_url_new (void)
|
|
{
|
|
AtomURL *url = g_new0 (AtomURL, 1);
|
|
|
|
atom_url_init (url);
|
|
return url;
|
|
}
|
|
|
|
static AtomFull *
|
|
atom_alis_new (void)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 1 };
|
|
AtomFull *alis = g_new0 (AtomFull, 1);
|
|
|
|
atom_full_init (alis, FOURCC_alis, 0, 0, 0, flags);
|
|
return alis;
|
|
}
|
|
|
|
static void
|
|
atom_dref_init (AtomDREF * dref, AtomsContext * context)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&dref->header, FOURCC_dref, 0, 0, 0, flags);
|
|
|
|
/* in either case, alis or url init arranges to set self-contained flag */
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
/* alis dref for qt */
|
|
AtomFull *alis = atom_alis_new ();
|
|
dref->entries = g_list_append (dref->entries, alis);
|
|
} else {
|
|
/* url for iso spec, as 'alis' not specified there */
|
|
AtomURL *url = atom_url_new ();
|
|
dref->entries = g_list_append (dref->entries, url);
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_dref_clear (AtomDREF * dref)
|
|
{
|
|
GList *walker;
|
|
|
|
atom_full_clear (&dref->header);
|
|
walker = dref->entries;
|
|
while (walker) {
|
|
GList *aux = walker;
|
|
Atom *atom = (Atom *) aux->data;
|
|
|
|
walker = g_list_next (walker);
|
|
dref->entries = g_list_remove_link (dref->entries, aux);
|
|
switch (atom->type) {
|
|
case FOURCC_alis:
|
|
atom_full_free ((AtomFull *) atom);
|
|
break;
|
|
case FOURCC_url_:
|
|
atom_url_free ((AtomURL *) atom);
|
|
break;
|
|
default:
|
|
/* we do nothing, better leak than crash */
|
|
break;
|
|
}
|
|
g_list_free (aux);
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_dinf_init (AtomDINF * dinf, AtomsContext * context)
|
|
{
|
|
atom_header_set (&dinf->header, FOURCC_dinf, 0, 0);
|
|
atom_dref_init (&dinf->dref, context);
|
|
}
|
|
|
|
static void
|
|
atom_dinf_clear (AtomDINF * dinf)
|
|
{
|
|
atom_clear (&dinf->header);
|
|
atom_dref_clear (&dinf->dref);
|
|
}
|
|
|
|
static void
|
|
atom_minf_init (AtomMINF * minf, AtomsContext * context)
|
|
{
|
|
atom_header_set (&minf->header, FOURCC_minf, 0, 0);
|
|
|
|
minf->vmhd = NULL;
|
|
minf->smhd = NULL;
|
|
minf->hmhd = NULL;
|
|
minf->gmhd = NULL;
|
|
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
minf->hdlr = atom_hdlr_new (context);
|
|
minf->hdlr->component_type = FOURCC_dhlr;
|
|
minf->hdlr->handler_type = FOURCC_alis;
|
|
} else {
|
|
minf->hdlr = NULL;
|
|
}
|
|
atom_dinf_init (&minf->dinf, context);
|
|
atom_stbl_init (&minf->stbl);
|
|
}
|
|
|
|
static void
|
|
atom_minf_clear_handlers (AtomMINF * minf)
|
|
{
|
|
if (minf->vmhd) {
|
|
atom_vmhd_free (minf->vmhd);
|
|
minf->vmhd = NULL;
|
|
}
|
|
if (minf->smhd) {
|
|
atom_smhd_free (minf->smhd);
|
|
minf->smhd = NULL;
|
|
}
|
|
if (minf->hmhd) {
|
|
atom_hmhd_free (minf->hmhd);
|
|
minf->hmhd = NULL;
|
|
}
|
|
if (minf->gmhd) {
|
|
atom_gmhd_free (minf->gmhd);
|
|
minf->gmhd = NULL;
|
|
}
|
|
if (minf->nmhd) {
|
|
atom_nmhd_free (minf->nmhd);
|
|
minf->nmhd = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_minf_clear (AtomMINF * minf)
|
|
{
|
|
atom_clear (&minf->header);
|
|
atom_minf_clear_handlers (minf);
|
|
if (minf->hdlr) {
|
|
atom_hdlr_free (minf->hdlr);
|
|
}
|
|
atom_dinf_clear (&minf->dinf);
|
|
atom_stbl_clear (&minf->stbl);
|
|
}
|
|
|
|
static void
|
|
atom_mdhd_init (AtomMDHD * mdhd)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&mdhd->header, FOURCC_mdhd, 0, 0, 0, flags);
|
|
common_time_info_init (&mdhd->time_info);
|
|
/* tempting as it may be to simply 0-initialize,
|
|
* that will have the demuxer (correctly) come up with 'eng' as language
|
|
* so explicitly specify undefined instead */
|
|
mdhd->language_code = language_code ("und");
|
|
mdhd->quality = 0;
|
|
}
|
|
|
|
static void
|
|
atom_mdhd_clear (AtomMDHD * mdhd)
|
|
{
|
|
atom_full_clear (&mdhd->header);
|
|
}
|
|
|
|
static void
|
|
atom_mdia_init (AtomMDIA * mdia, AtomsContext * context)
|
|
{
|
|
atom_header_set (&mdia->header, FOURCC_mdia, 0, 0);
|
|
|
|
atom_mdhd_init (&mdia->mdhd);
|
|
atom_hdlr_init (&mdia->hdlr, context);
|
|
atom_minf_init (&mdia->minf, context);
|
|
}
|
|
|
|
static void
|
|
atom_mdia_clear (AtomMDIA * mdia)
|
|
{
|
|
atom_clear (&mdia->header);
|
|
atom_mdhd_clear (&mdia->mdhd);
|
|
atom_hdlr_clear (&mdia->hdlr);
|
|
atom_minf_clear (&mdia->minf);
|
|
}
|
|
|
|
static void
|
|
atom_tkhd_init (AtomTKHD * tkhd, AtomsContext * context)
|
|
{
|
|
/*
|
|
* flags info
|
|
* 1 -> track enabled
|
|
* 2 -> track in movie
|
|
* 4 -> track in preview
|
|
*/
|
|
guint8 flags[3] = { 0, 0, 7 };
|
|
|
|
atom_full_init (&tkhd->header, FOURCC_tkhd, 0, 0, 0, flags);
|
|
|
|
tkhd->creation_time = tkhd->modification_time = atoms_get_current_qt_time ();
|
|
tkhd->duration = 0;
|
|
tkhd->track_ID = 0;
|
|
tkhd->reserved = 0;
|
|
|
|
tkhd->reserved2[0] = tkhd->reserved2[1] = 0;
|
|
tkhd->layer = 0;
|
|
tkhd->alternate_group = 0;
|
|
tkhd->volume = 0;
|
|
tkhd->reserved3 = 0;
|
|
memset (tkhd->matrix, 0, sizeof (guint32) * 9);
|
|
tkhd->matrix[0] = 1 << 16;
|
|
tkhd->matrix[4] = 1 << 16;
|
|
tkhd->matrix[8] = 16384 << 16;
|
|
tkhd->width = 0;
|
|
tkhd->height = 0;
|
|
}
|
|
|
|
static void
|
|
atom_tkhd_clear (AtomTKHD * tkhd)
|
|
{
|
|
atom_full_clear (&tkhd->header);
|
|
}
|
|
|
|
static void
|
|
atom_ilst_init (AtomILST * ilst)
|
|
{
|
|
atom_header_set (&ilst->header, FOURCC_ilst, 0, 0);
|
|
ilst->entries = NULL;
|
|
}
|
|
|
|
static AtomILST *
|
|
atom_ilst_new (void)
|
|
{
|
|
AtomILST *ilst = g_new0 (AtomILST, 1);
|
|
|
|
atom_ilst_init (ilst);
|
|
return ilst;
|
|
}
|
|
|
|
static void
|
|
atom_ilst_free (AtomILST * ilst)
|
|
{
|
|
if (ilst->entries)
|
|
atom_info_list_free (ilst->entries);
|
|
atom_clear (&ilst->header);
|
|
g_free (ilst);
|
|
}
|
|
|
|
static void
|
|
atom_meta_init (AtomMETA * meta, AtomsContext * context)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&meta->header, FOURCC_meta, 0, 0, 0, flags);
|
|
atom_hdlr_init (&meta->hdlr, context);
|
|
/* FIXME (ISOM says this is always 0) */
|
|
meta->hdlr.component_type = FOURCC_mhlr;
|
|
meta->hdlr.handler_type = FOURCC_mdir;
|
|
meta->ilst = NULL;
|
|
}
|
|
|
|
static AtomMETA *
|
|
atom_meta_new (AtomsContext * context)
|
|
{
|
|
AtomMETA *meta = g_new0 (AtomMETA, 1);
|
|
|
|
atom_meta_init (meta, context);
|
|
return meta;
|
|
}
|
|
|
|
static void
|
|
atom_meta_free (AtomMETA * meta)
|
|
{
|
|
atom_full_clear (&meta->header);
|
|
atom_hdlr_clear (&meta->hdlr);
|
|
if (meta->ilst)
|
|
atom_ilst_free (meta->ilst);
|
|
meta->ilst = NULL;
|
|
g_free (meta);
|
|
}
|
|
|
|
static void
|
|
atom_udta_init_metatags (AtomUDTA * udta, AtomsContext * context)
|
|
{
|
|
if (context->flavor != ATOMS_TREE_FLAVOR_3GP) {
|
|
if (!udta->meta) {
|
|
udta->meta = atom_meta_new (context);
|
|
}
|
|
if (!udta->meta->ilst) {
|
|
udta->meta->ilst = atom_ilst_new ();
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_udta_init (AtomUDTA * udta, AtomsContext * context)
|
|
{
|
|
atom_header_set (&udta->header, FOURCC_udta, 0, 0);
|
|
udta->meta = NULL;
|
|
udta->context = context;
|
|
|
|
atom_udta_init_metatags (udta, context);
|
|
}
|
|
|
|
static void
|
|
atom_udta_clear (AtomUDTA * udta)
|
|
{
|
|
atom_clear (&udta->header);
|
|
if (udta->meta)
|
|
atom_meta_free (udta->meta);
|
|
udta->meta = NULL;
|
|
if (udta->entries)
|
|
atom_info_list_free (udta->entries);
|
|
}
|
|
|
|
static void
|
|
atom_tref_init (AtomTREF * tref, guint32 reftype)
|
|
{
|
|
atom_header_set (&tref->header, FOURCC_tref, 0, 0);
|
|
tref->reftype = reftype;
|
|
atom_array_init (&tref->entries, 128);
|
|
}
|
|
|
|
static void
|
|
atom_tref_clear (AtomTREF * tref)
|
|
{
|
|
atom_clear (&tref->header);
|
|
tref->reftype = 0;
|
|
atom_array_clear (&tref->entries);
|
|
}
|
|
|
|
AtomTREF *
|
|
atom_tref_new (guint32 reftype)
|
|
{
|
|
AtomTREF *tref;
|
|
|
|
tref = g_new0 (AtomTREF, 1);
|
|
atom_tref_init (tref, reftype);
|
|
|
|
return tref;
|
|
}
|
|
|
|
static void
|
|
atom_tref_free (AtomTREF * tref)
|
|
{
|
|
atom_tref_clear (tref);
|
|
g_free (tref);
|
|
}
|
|
|
|
/* Clear added tags, but keep the context/flavor the same */
|
|
void
|
|
atom_udta_clear_tags (AtomUDTA * udta)
|
|
{
|
|
if (udta->entries) {
|
|
atom_info_list_free (udta->entries);
|
|
udta->entries = NULL;
|
|
}
|
|
if (udta->meta && udta->meta->ilst->entries) {
|
|
atom_info_list_free (udta->meta->ilst->entries);
|
|
udta->meta->ilst->entries = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_tag_data_init (AtomTagData * data)
|
|
{
|
|
guint8 flags[] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&data->header, FOURCC_data, 0, 0, 0, flags);
|
|
}
|
|
|
|
static void
|
|
atom_tag_data_clear (AtomTagData * data)
|
|
{
|
|
atom_full_clear (&data->header);
|
|
g_free (data->data);
|
|
data->datalen = 0;
|
|
}
|
|
|
|
/*
|
|
* Fourcc is the tag fourcc
|
|
* flags will be truncated to 24bits
|
|
*/
|
|
static AtomTag *
|
|
atom_tag_new (guint32 fourcc, guint32 flags_as_uint)
|
|
{
|
|
AtomTag *tag = g_new0 (AtomTag, 1);
|
|
|
|
tag->header.type = fourcc;
|
|
atom_tag_data_init (&tag->data);
|
|
atom_full_set_flags_as_uint (&tag->data.header, flags_as_uint);
|
|
return tag;
|
|
}
|
|
|
|
static void
|
|
atom_tag_free (AtomTag * tag)
|
|
{
|
|
atom_clear (&tag->header);
|
|
atom_tag_data_clear (&tag->data);
|
|
g_free (tag);
|
|
}
|
|
|
|
static void
|
|
atom_mvhd_init (AtomMVHD * mvhd)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&(mvhd->header), FOURCC_mvhd, sizeof (AtomMVHD), 0, 0, flags);
|
|
|
|
common_time_info_init (&mvhd->time_info);
|
|
|
|
mvhd->prefered_rate = 1 << 16;
|
|
mvhd->volume = 1 << 8;
|
|
mvhd->reserved3 = 0;
|
|
memset (mvhd->reserved4, 0, sizeof (guint32[2]));
|
|
|
|
memset (mvhd->matrix, 0, sizeof (guint32[9]));
|
|
mvhd->matrix[0] = 1 << 16;
|
|
mvhd->matrix[4] = 1 << 16;
|
|
mvhd->matrix[8] = 16384 << 16;
|
|
|
|
mvhd->preview_time = 0;
|
|
mvhd->preview_duration = 0;
|
|
mvhd->poster_time = 0;
|
|
mvhd->selection_time = 0;
|
|
mvhd->selection_duration = 0;
|
|
mvhd->current_time = 0;
|
|
|
|
mvhd->next_track_id = 1;
|
|
}
|
|
|
|
static void
|
|
atom_mvhd_clear (AtomMVHD * mvhd)
|
|
{
|
|
atom_full_clear (&mvhd->header);
|
|
}
|
|
|
|
static void
|
|
atom_mehd_init (AtomMEHD * mehd)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&mehd->header, FOURCC_mehd, 0, 0, 1, flags);
|
|
mehd->fragment_duration = 0;
|
|
}
|
|
|
|
static void
|
|
atom_mvex_init (AtomMVEX * mvex)
|
|
{
|
|
atom_header_set (&mvex->header, FOURCC_mvex, 0, 0);
|
|
atom_mehd_init (&mvex->mehd);
|
|
mvex->trexs = NULL;
|
|
}
|
|
|
|
static void
|
|
atom_trak_init (AtomTRAK * trak, AtomsContext * context)
|
|
{
|
|
atom_header_set (&trak->header, FOURCC_trak, 0, 0);
|
|
|
|
atom_tkhd_init (&trak->tkhd, context);
|
|
trak->context = context;
|
|
atom_udta_init (&trak->udta, context);
|
|
trak->edts = NULL;
|
|
atom_mdia_init (&trak->mdia, context);
|
|
trak->tref = NULL;
|
|
}
|
|
|
|
AtomTRAK *
|
|
atom_trak_new (AtomsContext * context)
|
|
{
|
|
AtomTRAK *trak = g_new0 (AtomTRAK, 1);
|
|
|
|
atom_trak_init (trak, context);
|
|
return trak;
|
|
}
|
|
|
|
static void
|
|
atom_trak_clear (AtomTRAK * trak)
|
|
{
|
|
atom_clear (&trak->header);
|
|
atom_tkhd_clear (&trak->tkhd);
|
|
if (trak->edts)
|
|
atom_edts_free (trak->edts);
|
|
atom_udta_clear (&trak->udta);
|
|
atom_mdia_clear (&trak->mdia);
|
|
if (trak->tref)
|
|
atom_tref_free (trak->tref);
|
|
}
|
|
|
|
static void
|
|
atom_trak_free (AtomTRAK * trak)
|
|
{
|
|
atom_trak_clear (trak);
|
|
g_free (trak);
|
|
}
|
|
|
|
|
|
static void
|
|
atom_moov_init (AtomMOOV * moov, AtomsContext * context)
|
|
{
|
|
atom_header_set (&(moov->header), FOURCC_moov, 0, 0);
|
|
atom_mvhd_init (&(moov->mvhd));
|
|
atom_mvex_init (&(moov->mvex));
|
|
atom_udta_init (&moov->udta, context);
|
|
moov->traks = NULL;
|
|
moov->context = *context;
|
|
}
|
|
|
|
AtomMOOV *
|
|
atom_moov_new (AtomsContext * context)
|
|
{
|
|
AtomMOOV *moov = g_new0 (AtomMOOV, 1);
|
|
|
|
atom_moov_init (moov, context);
|
|
return moov;
|
|
}
|
|
|
|
static void
|
|
atom_trex_free (AtomTREX * trex)
|
|
{
|
|
atom_full_clear (&trex->header);
|
|
g_free (trex);
|
|
}
|
|
|
|
static void
|
|
atom_mvex_clear (AtomMVEX * mvex)
|
|
{
|
|
GList *walker;
|
|
|
|
atom_clear (&mvex->header);
|
|
walker = mvex->trexs;
|
|
while (walker) {
|
|
atom_trex_free ((AtomTREX *) walker->data);
|
|
walker = g_list_next (walker);
|
|
}
|
|
g_list_free (mvex->trexs);
|
|
mvex->trexs = NULL;
|
|
}
|
|
|
|
void
|
|
atom_moov_free (AtomMOOV * moov)
|
|
{
|
|
GList *walker;
|
|
|
|
atom_clear (&moov->header);
|
|
atom_mvhd_clear (&moov->mvhd);
|
|
|
|
walker = moov->traks;
|
|
while (walker) {
|
|
atom_trak_free ((AtomTRAK *) walker->data);
|
|
walker = g_list_next (walker);
|
|
}
|
|
g_list_free (moov->traks);
|
|
moov->traks = NULL;
|
|
|
|
atom_udta_clear (&moov->udta);
|
|
atom_mvex_clear (&moov->mvex);
|
|
|
|
g_free (moov);
|
|
}
|
|
|
|
/* -- end of init / free -- */
|
|
|
|
/* -- copy data functions -- */
|
|
|
|
static guint8
|
|
atom_full_get_version (AtomFull * full)
|
|
{
|
|
return full->version;
|
|
}
|
|
|
|
static guint64
|
|
common_time_info_copy_data (TimeInfo * ti, gboolean trunc_to_32,
|
|
guint8 ** buffer, guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (trunc_to_32) {
|
|
prop_copy_uint32 ((guint32) ti->creation_time, buffer, size, offset);
|
|
prop_copy_uint32 ((guint32) ti->modification_time, buffer, size, offset);
|
|
prop_copy_uint32 (ti->timescale, buffer, size, offset);
|
|
prop_copy_uint32 ((guint32) ti->duration, buffer, size, offset);
|
|
} else {
|
|
prop_copy_uint64 (ti->creation_time, buffer, size, offset);
|
|
prop_copy_uint64 (ti->modification_time, buffer, size, offset);
|
|
prop_copy_uint32 (ti->timescale, buffer, size, offset);
|
|
prop_copy_uint64 (ti->duration, buffer, size, offset);
|
|
}
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static void
|
|
atom_write_size (guint8 ** buffer, guint64 * size, guint64 * offset,
|
|
guint64 atom_pos)
|
|
{
|
|
/* this only works for non-extended atom size, which is OK
|
|
* (though it could be made to do mem_move, etc and write extended size) */
|
|
prop_copy_uint32 (*offset - atom_pos, buffer, size, &atom_pos);
|
|
}
|
|
|
|
static guint64
|
|
atom_copy_empty (Atom * atom, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
prop_copy_uint32 (0, buffer, size, offset);
|
|
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_copy_data (Atom * atom, guint8 ** buffer, guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
/* copies type and size */
|
|
prop_copy_uint32 (atom->size, buffer, size, offset);
|
|
prop_copy_fourcc (atom->type, buffer, size, offset);
|
|
|
|
/* extended size needed */
|
|
if (atom->size == 1) {
|
|
/* really should not happen other than with mdat atom;
|
|
* would be a problem for size (re)write code, not to mention memory */
|
|
g_return_val_if_fail (atom->type == FOURCC_mdat, 0);
|
|
prop_copy_uint64 (atom->extended_size, buffer, size, offset);
|
|
}
|
|
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_full_copy_data (AtomFull * atom, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&atom->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint8 (atom->version, buffer, size, offset);
|
|
prop_copy_uint8_array (atom->flags, 3, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_info_list_copy_data (GList * ai, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
while (ai) {
|
|
AtomInfo *info = (AtomInfo *) ai->data;
|
|
|
|
if (!info->copy_data_func (info->atom, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
ai = g_list_next (ai);
|
|
}
|
|
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_data_copy_data (AtomData * data, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&data->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (data->datalen)
|
|
prop_copy_uint8_array (data->data, data->datalen, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_uuid_copy_data (AtomUUID * uuid, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&uuid->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_uint8_array (uuid->uuid, 16, buffer, size, offset);
|
|
if (uuid->datalen)
|
|
prop_copy_uint8_array (uuid->data, uuid->datalen, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_ftyp_copy_data (AtomFTYP * ftyp, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&ftyp->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_fourcc (ftyp->major_brand, buffer, size, offset);
|
|
prop_copy_uint32 (ftyp->version, buffer, size, offset);
|
|
|
|
prop_copy_fourcc_array (ftyp->compatible_brands, ftyp->compatible_brands_size,
|
|
buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_mvhd_copy_data (AtomMVHD * atom, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint8 version;
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&(atom->header), buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
version = atom_full_get_version (&(atom->header));
|
|
if (version == 0) {
|
|
common_time_info_copy_data (&atom->time_info, TRUE, buffer, size, offset);
|
|
} else if (version == 1) {
|
|
common_time_info_copy_data (&atom->time_info, FALSE, buffer, size, offset);
|
|
} else {
|
|
*offset = original_offset;
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (atom->prefered_rate, buffer, size, offset);
|
|
prop_copy_uint16 (atom->volume, buffer, size, offset);
|
|
prop_copy_uint16 (atom->reserved3, buffer, size, offset);
|
|
prop_copy_uint32_array (atom->reserved4, 2, buffer, size, offset);
|
|
prop_copy_uint32_array (atom->matrix, 9, buffer, size, offset);
|
|
prop_copy_uint32 (atom->preview_time, buffer, size, offset);
|
|
prop_copy_uint32 (atom->preview_duration, buffer, size, offset);
|
|
prop_copy_uint32 (atom->poster_time, buffer, size, offset);
|
|
prop_copy_uint32 (atom->selection_time, buffer, size, offset);
|
|
prop_copy_uint32 (atom->selection_duration, buffer, size, offset);
|
|
prop_copy_uint32 (atom->current_time, buffer, size, offset);
|
|
|
|
prop_copy_uint32 (atom->next_track_id, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tkhd_copy_data (AtomTKHD * tkhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&tkhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (atom_full_get_version (&tkhd->header) == 0) {
|
|
prop_copy_uint32 ((guint32) tkhd->creation_time, buffer, size, offset);
|
|
prop_copy_uint32 ((guint32) tkhd->modification_time, buffer, size, offset);
|
|
prop_copy_uint32 (tkhd->track_ID, buffer, size, offset);
|
|
prop_copy_uint32 (tkhd->reserved, buffer, size, offset);
|
|
prop_copy_uint32 ((guint32) tkhd->duration, buffer, size, offset);
|
|
} else {
|
|
prop_copy_uint64 (tkhd->creation_time, buffer, size, offset);
|
|
prop_copy_uint64 (tkhd->modification_time, buffer, size, offset);
|
|
prop_copy_uint32 (tkhd->track_ID, buffer, size, offset);
|
|
prop_copy_uint32 (tkhd->reserved, buffer, size, offset);
|
|
prop_copy_uint64 (tkhd->duration, buffer, size, offset);
|
|
}
|
|
|
|
prop_copy_uint32_array (tkhd->reserved2, 2, buffer, size, offset);
|
|
prop_copy_uint16 (tkhd->layer, buffer, size, offset);
|
|
prop_copy_uint16 (tkhd->alternate_group, buffer, size, offset);
|
|
prop_copy_uint16 (tkhd->volume, buffer, size, offset);
|
|
prop_copy_uint16 (tkhd->reserved3, buffer, size, offset);
|
|
prop_copy_uint32_array (tkhd->matrix, 9, buffer, size, offset);
|
|
|
|
prop_copy_uint32 (tkhd->width, buffer, size, offset);
|
|
prop_copy_uint32 (tkhd->height, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_hdlr_copy_data (AtomHDLR * hdlr, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&hdlr->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_fourcc (hdlr->component_type, buffer, size, offset);
|
|
prop_copy_fourcc (hdlr->handler_type, buffer, size, offset);
|
|
prop_copy_fourcc (hdlr->manufacturer, buffer, size, offset);
|
|
prop_copy_uint32 (hdlr->flags, buffer, size, offset);
|
|
prop_copy_uint32 (hdlr->flags_mask, buffer, size, offset);
|
|
|
|
if (hdlr->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
prop_copy_size_string ((guint8 *) hdlr->name, strlen (hdlr->name), buffer,
|
|
size, offset);
|
|
} else {
|
|
/* assume isomedia base is more generic and use null terminated */
|
|
prop_copy_null_terminated_string (hdlr->name, buffer, size, offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_vmhd_copy_data (AtomVMHD * vmhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&vmhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_uint16 (vmhd->graphics_mode, buffer, size, offset);
|
|
prop_copy_uint16_array (vmhd->opcolor, 3, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_smhd_copy_data (AtomSMHD * smhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&smhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_uint16 (smhd->balance, buffer, size, offset);
|
|
prop_copy_uint16 (smhd->reserved, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_hmhd_copy_data (AtomHMHD * hmhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&hmhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_uint16 (hmhd->max_pdu_size, buffer, size, offset);
|
|
prop_copy_uint16 (hmhd->avg_pdu_size, buffer, size, offset);
|
|
prop_copy_uint32 (hmhd->max_bitrate, buffer, size, offset);
|
|
prop_copy_uint32 (hmhd->avg_bitrate, buffer, size, offset);
|
|
prop_copy_uint32 (hmhd->sliding_avg_bitrate, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tcmi_copy_data (AtomTCMI * tcmi, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&tcmi->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_uint16 (tcmi->text_font, buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->text_face, buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->text_size, buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->text_color[0], buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->text_color[1], buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->text_color[2], buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->bg_color[0], buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->bg_color[1], buffer, size, offset);
|
|
prop_copy_uint16 (tcmi->bg_color[2], buffer, size, offset);
|
|
/* reserved */
|
|
prop_copy_uint16 (0, buffer, size, offset);
|
|
prop_copy_size_string ((guint8 *) tcmi->font_name, strlen (tcmi->font_name),
|
|
buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tmcd_copy_data (AtomTMCD * tmcd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&tmcd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_tcmi_copy_data (&tmcd->tcmi, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_gmin_copy_data (AtomGMIN * gmin, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&gmin->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_uint16 (gmin->graphics_mode, buffer, size, offset);
|
|
prop_copy_uint16 (gmin->opcolor[0], buffer, size, offset);
|
|
prop_copy_uint16 (gmin->opcolor[1], buffer, size, offset);
|
|
prop_copy_uint16 (gmin->opcolor[2], buffer, size, offset);
|
|
prop_copy_uint8 (gmin->balance, buffer, size, offset);
|
|
/* reserved */
|
|
prop_copy_uint8 (0, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_gmhd_copy_data (AtomGMHD * gmhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&gmhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_gmin_copy_data (&gmhd->gmin, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (gmhd->tmcd && !atom_tmcd_copy_data (gmhd->tmcd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_nmhd_copy_data (AtomNMHD * nmhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&nmhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
prop_copy_uint32 (nmhd->flags, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static gboolean
|
|
atom_url_same_file_flag (AtomURL * url)
|
|
{
|
|
return (url->header.flags[2] & 0x1) == 1;
|
|
}
|
|
|
|
static guint64
|
|
atom_url_copy_data (AtomURL * url, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&url->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (!atom_url_same_file_flag (url)) {
|
|
prop_copy_null_terminated_string (url->location, buffer, size, offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
guint64
|
|
atom_stts_copy_data (AtomSTTS * stts, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint i;
|
|
|
|
if (!atom_full_copy_data (&stts->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (atom_array_get_len (&stts->entries), buffer, size, offset);
|
|
/* minimize realloc */
|
|
prop_copy_ensure_buffer (buffer, size, offset,
|
|
8 * atom_array_get_len (&stts->entries));
|
|
for (i = 0; i < atom_array_get_len (&stts->entries); i++) {
|
|
STTSEntry *entry = &atom_array_index (&stts->entries, i);
|
|
|
|
prop_copy_uint32 (entry->sample_count, buffer, size, offset);
|
|
prop_copy_int32 (entry->sample_delta, buffer, size, offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_sample_entry_copy_data (SampleTableEntry * se, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&se->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint8_array (se->reserved, 6, buffer, size, offset);
|
|
prop_copy_uint16 (se->data_reference_index, buffer, size, offset);
|
|
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_esds_copy_data (AtomESDS * esds, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&esds->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!desc_es_descriptor_copy_data (&esds->es, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_frma_copy_data (AtomFRMA * frma, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&(frma->header), buffer, size, offset))
|
|
return 0;
|
|
|
|
prop_copy_fourcc (frma->media_type, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_hint_sample_entry_copy_data (AtomHintSampleEntry * hse, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_sample_entry_copy_data (&hse->se, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (hse->size, buffer, size, offset);
|
|
prop_copy_uint8_array (hse->data, hse->size, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
sample_entry_mp4a_copy_data (SampleTableEntryMP4A * mp4a, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_sample_entry_copy_data (&mp4a->se, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint16 (mp4a->version, buffer, size, offset);
|
|
prop_copy_uint16 (mp4a->revision_level, buffer, size, offset);
|
|
prop_copy_uint32 (mp4a->vendor, buffer, size, offset);
|
|
prop_copy_uint16 (mp4a->channels, buffer, size, offset);
|
|
prop_copy_uint16 (mp4a->sample_size, buffer, size, offset);
|
|
prop_copy_uint16 (mp4a->compression_id, buffer, size, offset);
|
|
prop_copy_uint16 (mp4a->packet_size, buffer, size, offset);
|
|
prop_copy_uint32 (mp4a->sample_rate, buffer, size, offset);
|
|
|
|
/* this should always be 0 for mp4 flavor */
|
|
if (mp4a->version == 1) {
|
|
prop_copy_uint32 (mp4a->samples_per_packet, buffer, size, offset);
|
|
prop_copy_uint32 (mp4a->bytes_per_packet, buffer, size, offset);
|
|
prop_copy_uint32 (mp4a->bytes_per_frame, buffer, size, offset);
|
|
prop_copy_uint32 (mp4a->bytes_per_sample, buffer, size, offset);
|
|
}
|
|
|
|
if (mp4a->extension_atoms) {
|
|
if (!atom_info_list_copy_data (mp4a->extension_atoms, buffer, size, offset))
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
sample_entry_mp4v_copy_data (SampleTableEntryMP4V * mp4v, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_sample_entry_copy_data (&mp4v->se, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint16 (mp4v->version, buffer, size, offset);
|
|
prop_copy_uint16 (mp4v->revision_level, buffer, size, offset);
|
|
prop_copy_fourcc (mp4v->vendor, buffer, size, offset);
|
|
prop_copy_uint32 (mp4v->temporal_quality, buffer, size, offset);
|
|
prop_copy_uint32 (mp4v->spatial_quality, buffer, size, offset);
|
|
|
|
prop_copy_uint16 (mp4v->width, buffer, size, offset);
|
|
prop_copy_uint16 (mp4v->height, buffer, size, offset);
|
|
|
|
prop_copy_uint32 (mp4v->horizontal_resolution, buffer, size, offset);
|
|
prop_copy_uint32 (mp4v->vertical_resolution, buffer, size, offset);
|
|
prop_copy_uint32 (mp4v->datasize, buffer, size, offset);
|
|
|
|
prop_copy_uint16 (mp4v->frame_count, buffer, size, offset);
|
|
|
|
prop_copy_fixed_size_string ((guint8 *) mp4v->compressor, 32, buffer, size,
|
|
offset);
|
|
|
|
prop_copy_uint16 (mp4v->depth, buffer, size, offset);
|
|
prop_copy_uint16 (mp4v->color_table_id, buffer, size, offset);
|
|
|
|
/* extra atoms */
|
|
if (mp4v->extension_atoms &&
|
|
!atom_info_list_copy_data (mp4v->extension_atoms, buffer, size, offset))
|
|
return 0;
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
sample_entry_tx3g_copy_data (SampleTableEntryTX3G * tx3g, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_sample_entry_copy_data (&tx3g->se, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (tx3g->display_flags, buffer, size, offset);
|
|
|
|
/* reserved */
|
|
prop_copy_uint8 (1, buffer, size, offset);
|
|
prop_copy_uint8 (-1, buffer, size, offset);
|
|
prop_copy_uint32 (0, buffer, size, offset);
|
|
|
|
prop_copy_uint64 (tx3g->default_text_box, buffer, size, offset);
|
|
|
|
/* reserved */
|
|
prop_copy_uint32 (0, buffer, size, offset);
|
|
|
|
prop_copy_uint16 (tx3g->font_id, buffer, size, offset);
|
|
prop_copy_uint8 (tx3g->font_face, buffer, size, offset);
|
|
prop_copy_uint8 (tx3g->font_size, buffer, size, offset);
|
|
prop_copy_uint32 (tx3g->foreground_color_rgba, buffer, size, offset);
|
|
|
|
/* it must have a fonttable atom */
|
|
{
|
|
Atom atom;
|
|
|
|
atom_header_set (&atom, FOURCC_ftab, 18, 0);
|
|
if (!atom_copy_data (&atom, buffer, size, offset))
|
|
return 0;
|
|
prop_copy_uint16 (1, buffer, size, offset); /* Count must be 1 */
|
|
prop_copy_uint16 (1, buffer, size, offset); /* Font id: 1 */
|
|
prop_copy_size_string ((guint8 *) "Serif", 5, buffer, size, offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
sample_entry_tmcd_copy_data (SampleTableEntryTMCD * tmcd, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_sample_entry_copy_data (&tmcd->se, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
/* reserved */
|
|
prop_copy_uint32 (0, buffer, size, offset);
|
|
|
|
prop_copy_uint32 (tmcd->tc_flags, buffer, size, offset);
|
|
prop_copy_uint32 (tmcd->timescale, buffer, size, offset);
|
|
prop_copy_uint32 (tmcd->frame_duration, buffer, size, offset);
|
|
prop_copy_uint8 (tmcd->n_frames, buffer, size, offset);
|
|
|
|
/* reserved */
|
|
prop_copy_uint8 (0, buffer, size, offset);
|
|
{
|
|
Atom atom;
|
|
guint64 name_offset = *offset;
|
|
|
|
atom_header_set (&atom, FOURCC_name, 0, 0);
|
|
if (!atom_copy_data (&atom, buffer, size, offset))
|
|
return 0;
|
|
prop_copy_uint16 (strlen (tmcd->name.name), buffer, size, offset);
|
|
prop_copy_uint16 (tmcd->name.language_code, buffer, size, offset);
|
|
prop_copy_fixed_size_string ((guint8 *) tmcd->name.name,
|
|
strlen (tmcd->name.name), buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, name_offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
sample_entry_generic_copy_data (SampleTableEntry * entry, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_sample_entry_copy_data (entry, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_stsz_copy_data (AtomSTSZ * stsz, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint i;
|
|
|
|
if (!atom_full_copy_data (&stsz->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (stsz->sample_size, buffer, size, offset);
|
|
prop_copy_uint32 (stsz->table_size, buffer, size, offset);
|
|
if (stsz->sample_size == 0) {
|
|
/* minimize realloc */
|
|
prop_copy_ensure_buffer (buffer, size, offset, 4 * stsz->table_size);
|
|
/* entry count must match sample count */
|
|
g_assert (atom_array_get_len (&stsz->entries) == stsz->table_size);
|
|
for (i = 0; i < atom_array_get_len (&stsz->entries); i++) {
|
|
prop_copy_uint32 (atom_array_index (&stsz->entries, i), buffer, size,
|
|
offset);
|
|
}
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_stsc_copy_data (AtomSTSC * stsc, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint i, len;
|
|
gboolean last_entries_merged = FALSE;
|
|
|
|
if (!atom_full_copy_data (&stsc->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
/* Last two entries might be the same size here as we only merge once the
|
|
* next chunk is started */
|
|
if ((len = atom_array_get_len (&stsc->entries)) > 1) {
|
|
STSCEntry *prev_entry = &atom_array_index (&stsc->entries, len - 2);
|
|
STSCEntry *current_entry = &atom_array_index (&stsc->entries, len - 1);
|
|
if (prev_entry->samples_per_chunk == current_entry->samples_per_chunk &&
|
|
prev_entry->sample_description_index ==
|
|
current_entry->sample_description_index) {
|
|
stsc->entries.len--;
|
|
last_entries_merged = TRUE;
|
|
}
|
|
}
|
|
|
|
prop_copy_uint32 (atom_array_get_len (&stsc->entries), buffer, size, offset);
|
|
/* minimize realloc */
|
|
prop_copy_ensure_buffer (buffer, size, offset,
|
|
12 * atom_array_get_len (&stsc->entries));
|
|
|
|
for (i = 0; i < atom_array_get_len (&stsc->entries); i++) {
|
|
STSCEntry *entry = &atom_array_index (&stsc->entries, i);
|
|
|
|
prop_copy_uint32 (entry->first_chunk, buffer, size, offset);
|
|
prop_copy_uint32 (entry->samples_per_chunk, buffer, size, offset);
|
|
prop_copy_uint32 (entry->sample_description_index, buffer, size, offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
|
|
/* Need to add the last entry again as in "robust" muxing mode we will most
|
|
* likely add new samples to the last chunk, thus making the
|
|
* samples_per_chunk in the last one different to the second to last one,
|
|
* and thus making it wrong to keep them merged
|
|
*/
|
|
if (last_entries_merged)
|
|
stsc->entries.len++;
|
|
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_ctts_copy_data (AtomCTTS * ctts, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint i;
|
|
|
|
if (!atom_full_copy_data (&ctts->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (atom_array_get_len (&ctts->entries), buffer, size, offset);
|
|
/* minimize realloc */
|
|
prop_copy_ensure_buffer (buffer, size, offset,
|
|
8 * atom_array_get_len (&ctts->entries));
|
|
for (i = 0; i < atom_array_get_len (&ctts->entries); i++) {
|
|
CTTSEntry *entry = &atom_array_index (&ctts->entries, i);
|
|
|
|
prop_copy_uint32 (entry->samplecount, buffer, size, offset);
|
|
prop_copy_uint32 (entry->sampleoffset, buffer, size, offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_svmi_copy_data (AtomSVMI * svmi, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&svmi->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint8 (svmi->stereoscopic_composition_type, buffer, size, offset);
|
|
prop_copy_uint8 (svmi->is_left_first ? 1 : 0, buffer, size, offset);
|
|
/* stereo-mono change count */
|
|
prop_copy_uint32 (0, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_stco64_copy_data (AtomSTCO64 * stco64, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint i;
|
|
|
|
/* If any (mdat-relative) offset will by over 32-bits when converted to an
|
|
* absolute file offset then we need to write a 64-bit co64 atom, otherwise
|
|
* we can write a smaller stco 32-bit table */
|
|
gboolean write_stco64 =
|
|
(stco64->max_offset + stco64->chunk_offset) > G_MAXUINT32;
|
|
|
|
if (write_stco64)
|
|
stco64->header.header.type = FOURCC_co64;
|
|
else
|
|
stco64->header.header.type = FOURCC_stco;
|
|
|
|
if (!atom_full_copy_data (&stco64->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (atom_array_get_len (&stco64->entries), buffer, size,
|
|
offset);
|
|
|
|
/* minimize realloc */
|
|
prop_copy_ensure_buffer (buffer, size, offset,
|
|
8 * atom_array_get_len (&stco64->entries));
|
|
for (i = 0; i < atom_array_get_len (&stco64->entries); i++) {
|
|
guint64 value =
|
|
atom_array_index (&stco64->entries, i) + stco64->chunk_offset;
|
|
|
|
if (write_stco64) {
|
|
prop_copy_uint64 (value, buffer, size, offset);
|
|
} else {
|
|
prop_copy_uint32 ((guint32) value, buffer, size, offset);
|
|
}
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_stss_copy_data (AtomSTSS * stss, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint i;
|
|
|
|
if (atom_array_get_len (&stss->entries) == 0) {
|
|
/* FIXME not needing this atom might be confused with error while copying */
|
|
return 0;
|
|
}
|
|
|
|
if (!atom_full_copy_data (&stss->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (atom_array_get_len (&stss->entries), buffer, size, offset);
|
|
/* minimize realloc */
|
|
prop_copy_ensure_buffer (buffer, size, offset,
|
|
4 * atom_array_get_len (&stss->entries));
|
|
for (i = 0; i < atom_array_get_len (&stss->entries); i++) {
|
|
prop_copy_uint32 (atom_array_index (&stss->entries, i), buffer, size,
|
|
offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_stsd_copy_data (AtomSTSD * stsd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GList *walker;
|
|
|
|
if (!atom_full_copy_data (&stsd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (stsd->n_entries, buffer, size, offset);
|
|
|
|
for (walker = g_list_last (stsd->entries); walker != NULL;
|
|
walker = g_list_previous (walker)) {
|
|
SampleTableEntry *se = (SampleTableEntry *) walker->data;
|
|
|
|
switch (((Atom *) walker->data)->type) {
|
|
case FOURCC_mp4a:
|
|
if (!sample_entry_mp4a_copy_data ((SampleTableEntryMP4A *) walker->data,
|
|
buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
break;
|
|
case FOURCC_mp4v:
|
|
if (!sample_entry_mp4v_copy_data ((SampleTableEntryMP4V *) walker->data,
|
|
buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
break;
|
|
default:
|
|
if (se->kind == VIDEO) {
|
|
if (!sample_entry_mp4v_copy_data ((SampleTableEntryMP4V *)
|
|
walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (se->kind == AUDIO) {
|
|
if (!sample_entry_mp4a_copy_data ((SampleTableEntryMP4A *)
|
|
walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (se->kind == SUBTITLE) {
|
|
if (!sample_entry_tx3g_copy_data ((SampleTableEntryTX3G *)
|
|
walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (se->kind == TIMECODE) {
|
|
if (!sample_entry_tmcd_copy_data ((SampleTableEntryTMCD *)
|
|
walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (se->kind == CLOSEDCAPTION) {
|
|
if (!sample_entry_generic_copy_data ((SampleTableEntry *)
|
|
walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else {
|
|
if (!atom_hint_sample_entry_copy_data (
|
|
(AtomHintSampleEntry *) walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_stbl_copy_data (AtomSTBL * stbl, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&stbl->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (!atom_stsd_copy_data (&stbl->stsd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_stts_copy_data (&stbl->stts, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
/* this atom is optional, so let's check if we need it
|
|
* (to avoid false error) */
|
|
if (atom_array_get_len (&stbl->stss.entries)) {
|
|
if (!atom_stss_copy_data (&stbl->stss, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!atom_stsc_copy_data (&stbl->stsc, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_stsz_copy_data (&stbl->stsz, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (stbl->ctts && stbl->ctts->do_pts) {
|
|
if (!atom_ctts_copy_data (stbl->ctts, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (stbl->svmi) {
|
|
if (!atom_svmi_copy_data (stbl->svmi, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (!atom_stco64_copy_data (&stbl->stco64, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
|
|
static guint64
|
|
atom_dref_copy_data (AtomDREF * dref, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GList *walker;
|
|
|
|
if (!atom_full_copy_data (&dref->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (g_list_length (dref->entries), buffer, size, offset);
|
|
|
|
walker = dref->entries;
|
|
while (walker != NULL) {
|
|
Atom *atom = (Atom *) walker->data;
|
|
|
|
if (atom->type == FOURCC_url_) {
|
|
if (!atom_url_copy_data ((AtomURL *) atom, buffer, size, offset))
|
|
return 0;
|
|
} else if (atom->type == FOURCC_alis) {
|
|
if (!atom_full_copy_data ((AtomFull *) atom, buffer, size, offset))
|
|
return 0;
|
|
} else {
|
|
g_error ("Unsupported atom used inside dref atom");
|
|
}
|
|
walker = g_list_next (walker);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_dinf_copy_data (AtomDINF * dinf, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&dinf->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (!atom_dref_copy_data (&dinf->dref, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return original_offset - *offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_minf_copy_data (AtomMINF * minf, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&minf->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (minf->vmhd) {
|
|
if (!atom_vmhd_copy_data (minf->vmhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (minf->smhd) {
|
|
if (!atom_smhd_copy_data (minf->smhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (minf->hmhd) {
|
|
if (!atom_hmhd_copy_data (minf->hmhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (minf->gmhd) {
|
|
if (!atom_gmhd_copy_data (minf->gmhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
} else if (minf->nmhd) {
|
|
if (!atom_nmhd_copy_data (minf->nmhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (minf->hdlr) {
|
|
if (!atom_hdlr_copy_data (minf->hdlr, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (!atom_dinf_copy_data (&minf->dinf, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_stbl_copy_data (&minf->stbl, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_mdhd_copy_data (AtomMDHD * mdhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&mdhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (!common_time_info_copy_data (&mdhd->time_info,
|
|
atom_full_get_version (&mdhd->header) == 0, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint16 (mdhd->language_code, buffer, size, offset);
|
|
prop_copy_uint16 (mdhd->quality, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_mdia_copy_data (AtomMDIA * mdia, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&mdia->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_mdhd_copy_data (&mdia->mdhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_hdlr_copy_data (&mdia->hdlr, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (!atom_minf_copy_data (&mdia->minf, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_elst_copy_data (AtomELST * elst, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GSList *walker;
|
|
|
|
if (!atom_full_copy_data (&elst->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (g_slist_length (elst->entries), buffer, size, offset);
|
|
|
|
for (walker = elst->entries; walker != NULL; walker = g_slist_next (walker)) {
|
|
EditListEntry *entry = (EditListEntry *) walker->data;
|
|
prop_copy_uint32 (entry->duration, buffer, size, offset);
|
|
prop_copy_uint32 (entry->media_time, buffer, size, offset);
|
|
prop_copy_uint32 (entry->media_rate, buffer, size, offset);
|
|
}
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tref_copy_data (AtomTREF * tref, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint i;
|
|
|
|
g_assert (atom_array_get_len (&tref->entries) > 0);
|
|
|
|
if (!atom_copy_data (&tref->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (8 + 4 * atom_array_get_len (&tref->entries), buffer, size,
|
|
offset);
|
|
prop_copy_fourcc (tref->reftype, buffer, size, offset);
|
|
/* minimize realloc */
|
|
prop_copy_ensure_buffer (buffer, size, offset,
|
|
4 * atom_array_get_len (&tref->entries));
|
|
for (i = 0; i < atom_array_get_len (&tref->entries); i++) {
|
|
prop_copy_uint32 (atom_array_index (&tref->entries, i), buffer, size,
|
|
offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_edts_copy_data (AtomEDTS * edts, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&(edts->header), buffer, size, offset))
|
|
return 0;
|
|
|
|
if (!atom_elst_copy_data (&(edts->elst), buffer, size, offset))
|
|
return 0;
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tag_data_copy_data (AtomTagData * data, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&data->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (data->reserved, buffer, size, offset);
|
|
prop_copy_uint8_array (data->data, data->datalen, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tag_copy_data (AtomTag * tag, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&tag->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (!atom_tag_data_copy_data (&tag->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_ilst_copy_data (AtomILST * ilst, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&ilst->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
/* extra atoms */
|
|
if (ilst->entries &&
|
|
!atom_info_list_copy_data (ilst->entries, buffer, size, offset))
|
|
return 0;
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_meta_copy_data (AtomMETA * meta, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&meta->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_hdlr_copy_data (&meta->hdlr, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (meta->ilst) {
|
|
if (!atom_ilst_copy_data (meta->ilst, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_udta_copy_data (AtomUDTA * udta, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&udta->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (udta->meta) {
|
|
if (!atom_meta_copy_data (udta->meta, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (udta->entries) {
|
|
/* extra atoms */
|
|
if (!atom_info_list_copy_data (udta->entries, buffer, size, offset))
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_mehd_copy_data (AtomMEHD * mehd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&mehd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint64 (mehd->fragment_duration, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_trex_copy_data (AtomTREX * trex, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&trex->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (trex->track_ID, buffer, size, offset);
|
|
prop_copy_uint32 (trex->default_sample_description_index, buffer, size,
|
|
offset);
|
|
prop_copy_uint32 (trex->default_sample_duration, buffer, size, offset);
|
|
prop_copy_uint32 (trex->default_sample_size, buffer, size, offset);
|
|
prop_copy_uint32 (trex->default_sample_flags, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_mvex_copy_data (AtomMVEX * mvex, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GList *walker;
|
|
|
|
if (!atom_copy_data (&mvex->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
/* only write mehd if we have anything extra to add */
|
|
if (!atom_mehd_copy_data (&mvex->mehd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
walker = g_list_first (mvex->trexs);
|
|
while (walker != NULL) {
|
|
if (!atom_trex_copy_data ((AtomTREX *) walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
walker = g_list_next (walker);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
guint64
|
|
atom_trak_copy_data (AtomTRAK * trak, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&trak->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_tkhd_copy_data (&trak->tkhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (trak->tapt) {
|
|
if (!trak->tapt->copy_data_func (trak->tapt->atom, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (trak->edts) {
|
|
if (!atom_edts_copy_data (trak->edts, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
if (trak->tref) {
|
|
/* Make sure we need this atom (there is a referenced track */
|
|
if (atom_array_get_len (&trak->tref->entries) > 0) {
|
|
if (!atom_tref_copy_data (trak->tref, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!atom_mdia_copy_data (&trak->mdia, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (!atom_udta_copy_data (&trak->udta, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
|
|
guint64
|
|
atom_moov_copy_data (AtomMOOV * atom, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GList *walker;
|
|
|
|
if (!atom_copy_data (&(atom->header), buffer, size, offset))
|
|
return 0;
|
|
|
|
if (!atom_mvhd_copy_data (&(atom->mvhd), buffer, size, offset))
|
|
return 0;
|
|
|
|
walker = g_list_first (atom->traks);
|
|
while (walker != NULL) {
|
|
if (!atom_trak_copy_data ((AtomTRAK *) walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
walker = g_list_next (walker);
|
|
}
|
|
|
|
if (!atom_udta_copy_data (&atom->udta, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
if (atom->fragmented) {
|
|
if (!atom_mvex_copy_data (&atom->mvex, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_wave_copy_data (AtomWAVE * wave, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_copy_data (&(wave->header), buffer, size, offset))
|
|
return 0;
|
|
|
|
if (wave->extension_atoms) {
|
|
if (!atom_info_list_copy_data (wave->extension_atoms, buffer, size, offset))
|
|
return 0;
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
/* -- end of copy data functions -- */
|
|
|
|
/* -- general functions, API and support functions */
|
|
|
|
/* add samples to tables */
|
|
|
|
void
|
|
atom_stsc_add_new_entry (AtomSTSC * stsc, guint32 first_chunk, guint32 nsamples,
|
|
guint32 sample_description_index)
|
|
{
|
|
gint len;
|
|
|
|
if ((len = atom_array_get_len (&stsc->entries)) > 1 &&
|
|
((atom_array_index (&stsc->entries, len - 1)).samples_per_chunk ==
|
|
(atom_array_index (&stsc->entries, len - 2)).samples_per_chunk)) {
|
|
STSCEntry *nentry;
|
|
|
|
/* Merge last two entries as they have the same number of samples per chunk */
|
|
nentry = &atom_array_index (&stsc->entries, len - 1);
|
|
nentry->first_chunk = first_chunk;
|
|
nentry->samples_per_chunk = nsamples;
|
|
nentry->sample_description_index = sample_description_index;
|
|
} else {
|
|
STSCEntry nentry;
|
|
|
|
nentry.first_chunk = first_chunk;
|
|
nentry.samples_per_chunk = nsamples;
|
|
nentry.sample_description_index = sample_description_index;
|
|
atom_array_append (&stsc->entries, nentry, 128);
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_stsc_update_entry (AtomSTSC * stsc, guint32 first_chunk, guint32 nsamples)
|
|
{
|
|
gint len;
|
|
|
|
len = atom_array_get_len (&stsc->entries);
|
|
g_assert (len != 0);
|
|
g_assert (atom_array_index (&stsc->entries,
|
|
len - 1).first_chunk == first_chunk);
|
|
|
|
atom_array_index (&stsc->entries, len - 1).samples_per_chunk += nsamples;
|
|
}
|
|
|
|
static void
|
|
atom_stts_add_entry (AtomSTTS * stts, guint32 sample_count, gint32 sample_delta)
|
|
{
|
|
STTSEntry *entry = NULL;
|
|
|
|
if (G_LIKELY (atom_array_get_len (&stts->entries) != 0))
|
|
entry = &atom_array_index (&stts->entries,
|
|
atom_array_get_len (&stts->entries) - 1);
|
|
|
|
if (entry && entry->sample_delta == sample_delta) {
|
|
entry->sample_count += sample_count;
|
|
} else {
|
|
STTSEntry nentry;
|
|
|
|
nentry.sample_count = sample_count;
|
|
nentry.sample_delta = sample_delta;
|
|
atom_array_append (&stts->entries, nentry, 256);
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_stsz_add_entry (AtomSTSZ * stsz, guint32 nsamples, guint32 size)
|
|
{
|
|
guint32 i;
|
|
|
|
stsz->table_size += nsamples;
|
|
if (stsz->sample_size != 0) {
|
|
/* it is constant size, we don't need entries */
|
|
return;
|
|
}
|
|
for (i = 0; i < nsamples; i++) {
|
|
atom_array_append (&stsz->entries, size, 1024);
|
|
}
|
|
}
|
|
|
|
static guint32
|
|
atom_stco64_get_entry_count (AtomSTCO64 * stco64)
|
|
{
|
|
return atom_array_get_len (&stco64->entries);
|
|
}
|
|
|
|
/* returns TRUE if a new entry was added */
|
|
static gboolean
|
|
atom_stco64_add_entry (AtomSTCO64 * stco64, guint64 entry)
|
|
{
|
|
guint32 len;
|
|
|
|
/* Only add a new entry if the chunk offset changed */
|
|
if ((len = atom_array_get_len (&stco64->entries)) &&
|
|
((atom_array_index (&stco64->entries, len - 1)) == entry))
|
|
return FALSE;
|
|
|
|
atom_array_append (&stco64->entries, entry, 256);
|
|
if (entry > stco64->max_offset)
|
|
stco64->max_offset = entry;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
void
|
|
atom_tref_add_entry (AtomTREF * tref, guint32 sample)
|
|
{
|
|
atom_array_append (&tref->entries, sample, 512);
|
|
}
|
|
|
|
static void
|
|
atom_stss_add_entry (AtomSTSS * stss, guint32 sample)
|
|
{
|
|
atom_array_append (&stss->entries, sample, 512);
|
|
}
|
|
|
|
static void
|
|
atom_stbl_add_stss_entry (AtomSTBL * stbl)
|
|
{
|
|
guint32 sample_index = stbl->stsz.table_size;
|
|
|
|
atom_stss_add_entry (&stbl->stss, sample_index);
|
|
}
|
|
|
|
static void
|
|
atom_ctts_add_entry (AtomCTTS * ctts, guint32 nsamples, guint32 offset)
|
|
{
|
|
CTTSEntry *entry = NULL;
|
|
|
|
if (G_LIKELY (atom_array_get_len (&ctts->entries) != 0))
|
|
entry = &atom_array_index (&ctts->entries,
|
|
atom_array_get_len (&ctts->entries) - 1);
|
|
|
|
if (entry == NULL || entry->sampleoffset != offset) {
|
|
CTTSEntry nentry;
|
|
|
|
nentry.samplecount = nsamples;
|
|
nentry.sampleoffset = offset;
|
|
atom_array_append (&ctts->entries, nentry, 256);
|
|
if (offset != 0)
|
|
ctts->do_pts = TRUE;
|
|
} else {
|
|
entry->samplecount += nsamples;
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_stbl_add_ctts_entry (AtomSTBL * stbl, guint32 nsamples, guint32 offset)
|
|
{
|
|
if (stbl->ctts == NULL) {
|
|
stbl->ctts = atom_ctts_new ();
|
|
}
|
|
atom_ctts_add_entry (stbl->ctts, nsamples, offset);
|
|
}
|
|
|
|
void
|
|
atom_stbl_add_samples (AtomSTBL * stbl, guint32 nsamples, guint32 delta,
|
|
guint32 size, guint64 chunk_offset, gboolean sync, gint64 pts_offset)
|
|
{
|
|
atom_stts_add_entry (&stbl->stts, nsamples, delta);
|
|
atom_stsz_add_entry (&stbl->stsz, nsamples, size);
|
|
if (atom_stco64_add_entry (&stbl->stco64, chunk_offset)) {
|
|
atom_stsc_add_new_entry (&stbl->stsc,
|
|
atom_stco64_get_entry_count (&stbl->stco64), nsamples,
|
|
stbl->stsd.n_entries);
|
|
} else {
|
|
atom_stsc_update_entry (&stbl->stsc,
|
|
atom_stco64_get_entry_count (&stbl->stco64), nsamples);
|
|
}
|
|
|
|
if (sync)
|
|
atom_stbl_add_stss_entry (stbl);
|
|
/* always store to arrange for consistent content */
|
|
atom_stbl_add_ctts_entry (stbl, nsamples, pts_offset);
|
|
}
|
|
|
|
void
|
|
atom_trak_add_samples (AtomTRAK * trak, guint32 nsamples, guint32 delta,
|
|
guint32 size, guint64 chunk_offset, gboolean sync, gint64 pts_offset)
|
|
{
|
|
AtomSTBL *stbl = &trak->mdia.minf.stbl;
|
|
atom_stbl_add_samples (stbl, nsamples, delta, size, chunk_offset, sync,
|
|
pts_offset);
|
|
}
|
|
|
|
/* trak and moov molding */
|
|
|
|
guint32
|
|
atom_trak_get_timescale (AtomTRAK * trak)
|
|
{
|
|
return trak->mdia.mdhd.time_info.timescale;
|
|
}
|
|
|
|
guint32
|
|
atom_trak_get_id (AtomTRAK * trak)
|
|
{
|
|
return trak->tkhd.track_ID;
|
|
}
|
|
|
|
static void
|
|
atom_trak_set_id (AtomTRAK * trak, guint32 id)
|
|
{
|
|
trak->tkhd.track_ID = id;
|
|
}
|
|
|
|
static void
|
|
atom_moov_add_trex (AtomMOOV * moov, AtomTREX * trex)
|
|
{
|
|
moov->mvex.trexs = g_list_append (moov->mvex.trexs, trex);
|
|
}
|
|
|
|
static AtomTREX *
|
|
atom_trex_new (AtomTRAK * trak)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
AtomTREX *trex = g_new0 (AtomTREX, 1);
|
|
|
|
atom_full_init (&trex->header, FOURCC_trex, 0, 0, 0, flags);
|
|
|
|
trex->track_ID = trak->tkhd.track_ID;
|
|
trex->default_sample_description_index = 1;
|
|
trex->default_sample_duration = 0;
|
|
trex->default_sample_size = 0;
|
|
trex->default_sample_flags = 0;
|
|
|
|
return trex;
|
|
}
|
|
|
|
void
|
|
atom_moov_add_trak (AtomMOOV * moov, AtomTRAK * trak)
|
|
{
|
|
atom_trak_set_id (trak, moov->mvhd.next_track_id++);
|
|
moov->traks = g_list_append (moov->traks, trak);
|
|
/* additional trak means also new trex */
|
|
atom_moov_add_trex (moov, atom_trex_new (trak));
|
|
}
|
|
|
|
guint
|
|
atom_moov_get_trak_count (AtomMOOV * moov)
|
|
{
|
|
return g_list_length (moov->traks);
|
|
}
|
|
|
|
static guint64
|
|
atom_trak_get_duration (AtomTRAK * trak)
|
|
{
|
|
return trak->tkhd.duration;
|
|
}
|
|
|
|
static guint64
|
|
atom_stts_get_total_duration (AtomSTTS * stts)
|
|
{
|
|
guint i;
|
|
guint64 sum = 0;
|
|
|
|
for (i = 0; i < atom_array_get_len (&stts->entries); i++) {
|
|
STTSEntry *entry = &atom_array_index (&stts->entries, i);
|
|
|
|
sum += (guint64) (entry->sample_count) * entry->sample_delta;
|
|
}
|
|
return sum;
|
|
}
|
|
|
|
static void
|
|
atom_trak_update_duration (AtomTRAK * trak, guint64 moov_timescale)
|
|
{
|
|
trak->mdia.mdhd.time_info.duration =
|
|
atom_stts_get_total_duration (&trak->mdia.minf.stbl.stts);
|
|
if (trak->mdia.mdhd.time_info.timescale != 0) {
|
|
trak->tkhd.duration =
|
|
gst_util_uint64_scale_round (trak->mdia.mdhd.time_info.duration,
|
|
moov_timescale, trak->mdia.mdhd.time_info.timescale);
|
|
} else {
|
|
trak->tkhd.duration = 0;
|
|
}
|
|
}
|
|
|
|
static void
|
|
timecode_atom_trak_set_duration (AtomTRAK * trak, guint64 duration,
|
|
guint64 timescale)
|
|
{
|
|
STTSEntry *entry;
|
|
GList *iter;
|
|
|
|
/* Sanity checks to ensure we have a timecode */
|
|
g_assert (trak->mdia.minf.gmhd != NULL);
|
|
g_assert (atom_array_get_len (&trak->mdia.minf.stbl.stts.entries) == 1);
|
|
|
|
for (iter = trak->mdia.minf.stbl.stsd.entries; iter;
|
|
iter = g_list_next (iter)) {
|
|
SampleTableEntry *entry = iter->data;
|
|
if (entry->kind == TIMECODE) {
|
|
SampleTableEntryTMCD *tmcd = (SampleTableEntryTMCD *) entry;
|
|
|
|
duration = duration * tmcd->timescale / timescale;
|
|
timescale = tmcd->timescale;
|
|
break;
|
|
}
|
|
}
|
|
|
|
trak->tkhd.duration = duration;
|
|
trak->mdia.mdhd.time_info.duration = duration;
|
|
trak->mdia.mdhd.time_info.timescale = timescale;
|
|
|
|
entry = &atom_array_index (&trak->mdia.minf.stbl.stts.entries, 0);
|
|
entry->sample_delta = duration;
|
|
}
|
|
|
|
static guint32
|
|
atom_moov_get_timescale (AtomMOOV * moov)
|
|
{
|
|
return moov->mvhd.time_info.timescale;
|
|
}
|
|
|
|
void
|
|
atom_moov_update_timescale (AtomMOOV * moov, guint32 timescale)
|
|
{
|
|
moov->mvhd.time_info.timescale = timescale;
|
|
}
|
|
|
|
void
|
|
atom_moov_update_duration (AtomMOOV * moov)
|
|
{
|
|
GList *traks = moov->traks;
|
|
guint64 dur, duration = 0;
|
|
|
|
while (traks) {
|
|
AtomTRAK *trak = (AtomTRAK *) traks->data;
|
|
|
|
/* Skip timecodes for now: they have a placeholder duration */
|
|
if (trak->mdia.minf.gmhd == NULL || trak->mdia.minf.gmhd->tmcd == NULL) {
|
|
atom_trak_update_duration (trak, atom_moov_get_timescale (moov));
|
|
dur = atom_trak_get_duration (trak);
|
|
if (dur > duration)
|
|
duration = dur;
|
|
}
|
|
traks = g_list_next (traks);
|
|
}
|
|
/* Now update the duration of the timecodes */
|
|
traks = moov->traks;
|
|
while (traks) {
|
|
AtomTRAK *trak = (AtomTRAK *) traks->data;
|
|
|
|
if (trak->mdia.minf.gmhd != NULL && trak->mdia.minf.gmhd->tmcd != NULL)
|
|
timecode_atom_trak_set_duration (trak, duration,
|
|
atom_moov_get_timescale (moov));
|
|
traks = g_list_next (traks);
|
|
}
|
|
moov->mvhd.time_info.duration = duration;
|
|
moov->mvex.mehd.fragment_duration = duration;
|
|
}
|
|
|
|
void
|
|
atom_moov_set_fragmented (AtomMOOV * moov, gboolean fragmented)
|
|
{
|
|
moov->fragmented = fragmented;
|
|
}
|
|
|
|
void
|
|
atom_stco64_chunks_set_offset (AtomSTCO64 * stco64, guint32 offset)
|
|
{
|
|
stco64->chunk_offset = offset;
|
|
}
|
|
|
|
void
|
|
atom_moov_chunks_set_offset (AtomMOOV * moov, guint32 offset)
|
|
{
|
|
GList *traks = moov->traks;
|
|
|
|
if (offset == moov->chunks_offset)
|
|
return; /* Nothing to do */
|
|
|
|
while (traks) {
|
|
AtomTRAK *trak = (AtomTRAK *) traks->data;
|
|
|
|
atom_stco64_chunks_set_offset (&trak->mdia.minf.stbl.stco64, offset);
|
|
traks = g_list_next (traks);
|
|
}
|
|
|
|
moov->chunks_offset = offset;
|
|
}
|
|
|
|
void
|
|
atom_trak_update_bitrates (AtomTRAK * trak, guint32 avg_bitrate,
|
|
guint32 max_bitrate)
|
|
{
|
|
AtomESDS *esds = NULL;
|
|
AtomData *btrt = NULL;
|
|
AtomWAVE *wave = NULL;
|
|
AtomSTSD *stsd;
|
|
GList *iter;
|
|
GList *extensioniter = NULL;
|
|
|
|
g_return_if_fail (trak != NULL);
|
|
|
|
if (avg_bitrate == 0 && max_bitrate == 0)
|
|
return;
|
|
|
|
stsd = &trak->mdia.minf.stbl.stsd;
|
|
for (iter = stsd->entries; iter; iter = g_list_next (iter)) {
|
|
SampleTableEntry *entry = iter->data;
|
|
|
|
switch (entry->kind) {
|
|
case AUDIO:{
|
|
SampleTableEntryMP4A *audioentry = (SampleTableEntryMP4A *) entry;
|
|
extensioniter = audioentry->extension_atoms;
|
|
break;
|
|
}
|
|
case VIDEO:{
|
|
SampleTableEntryMP4V *videoentry = (SampleTableEntryMP4V *) entry;
|
|
extensioniter = videoentry->extension_atoms;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (; extensioniter; extensioniter = g_list_next (extensioniter)) {
|
|
AtomInfo *atominfo = extensioniter->data;
|
|
if (atominfo->atom->type == FOURCC_esds) {
|
|
esds = (AtomESDS *) atominfo->atom;
|
|
} else if (atominfo->atom->type == FOURCC_btrt) {
|
|
btrt = (AtomData *) atominfo->atom;
|
|
} else if (atominfo->atom->type == FOURCC_wave) {
|
|
wave = (AtomWAVE *) atominfo->atom;
|
|
}
|
|
}
|
|
|
|
/* wave might have an esds internally */
|
|
if (wave) {
|
|
for (extensioniter = wave->extension_atoms; extensioniter;
|
|
extensioniter = g_list_next (extensioniter)) {
|
|
AtomInfo *atominfo = extensioniter->data;
|
|
if (atominfo->atom->type == FOURCC_esds) {
|
|
esds = (AtomESDS *) atominfo->atom;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (esds) {
|
|
if (avg_bitrate && esds->es.dec_conf_desc.avg_bitrate == 0)
|
|
esds->es.dec_conf_desc.avg_bitrate = avg_bitrate;
|
|
if (max_bitrate && esds->es.dec_conf_desc.max_bitrate == 0)
|
|
esds->es.dec_conf_desc.max_bitrate = max_bitrate;
|
|
}
|
|
if (btrt) {
|
|
/* type(4bytes) + size(4bytes) + buffersize(4bytes) +
|
|
* maxbitrate(bytes) + avgbitrate(bytes) */
|
|
if (max_bitrate && GST_READ_UINT32_BE (btrt->data + 4) == 0)
|
|
GST_WRITE_UINT32_BE (btrt->data + 4, max_bitrate);
|
|
if (avg_bitrate && GST_READ_UINT32_BE (btrt->data + 8) == 0)
|
|
GST_WRITE_UINT32_BE (btrt->data + 8, avg_bitrate);
|
|
}
|
|
}
|
|
|
|
void
|
|
atom_trak_tx3g_update_dimension (AtomTRAK * trak, guint32 width, guint32 height)
|
|
{
|
|
AtomSTSD *stsd;
|
|
GList *iter;
|
|
SampleTableEntryTX3G *tx3g = NULL;
|
|
|
|
stsd = &trak->mdia.minf.stbl.stsd;
|
|
for (iter = stsd->entries; iter && tx3g == NULL; iter = g_list_next (iter)) {
|
|
SampleTableEntry *entry = iter->data;
|
|
|
|
switch (entry->kind) {
|
|
case SUBTITLE:{
|
|
tx3g = (SampleTableEntryTX3G *) entry;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Currently we never set the vertical placement flag, so we don't
|
|
* check for it to set the dimensions differently as the spec says.
|
|
* Always do it for the not set case */
|
|
if (tx3g) {
|
|
tx3g->font_size = 0.05 * height;
|
|
|
|
height = 0.15 * height;
|
|
trak->tkhd.width = width << 16;
|
|
trak->tkhd.height = height << 16;
|
|
tx3g->default_text_box = width | (height << 16);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Meta tags functions
|
|
*/
|
|
static void
|
|
atom_tag_data_alloc_data (AtomTagData * data, guint size)
|
|
{
|
|
g_free (data->data);
|
|
data->data = g_new0 (guint8, size);
|
|
data->datalen = size;
|
|
}
|
|
|
|
static void
|
|
atom_udta_append_tag (AtomUDTA * udta, AtomInfo * tag)
|
|
{
|
|
GList **entries;
|
|
|
|
if (udta->meta)
|
|
entries = &udta->meta->ilst->entries;
|
|
else
|
|
entries = &udta->entries;
|
|
*entries = g_list_append (*entries, tag);
|
|
}
|
|
|
|
void
|
|
atom_udta_add_tag (AtomUDTA * udta, guint32 fourcc, guint32 flags,
|
|
const guint8 * data, guint size)
|
|
{
|
|
AtomTag *tag;
|
|
AtomTagData *tdata;
|
|
|
|
tag = atom_tag_new (fourcc, flags);
|
|
tdata = &tag->data;
|
|
atom_tag_data_alloc_data (tdata, size);
|
|
memmove (tdata->data, data, size);
|
|
|
|
atom_udta_append_tag (udta,
|
|
build_atom_info_wrapper ((Atom *) tag, atom_tag_copy_data,
|
|
atom_tag_free));
|
|
}
|
|
|
|
void
|
|
atom_udta_add_str_tag (AtomUDTA * udta, guint32 fourcc, const gchar * value)
|
|
{
|
|
gint len = strlen (value);
|
|
|
|
if (len > 0)
|
|
atom_udta_add_tag (udta, fourcc, METADATA_TEXT_FLAG, (guint8 *) value, len);
|
|
}
|
|
|
|
void
|
|
atom_udta_add_uint_tag (AtomUDTA * udta, guint32 fourcc, guint32 flags,
|
|
guint32 value)
|
|
{
|
|
guint8 data[8] = { 0, };
|
|
|
|
if (flags) {
|
|
GST_WRITE_UINT16_BE (data, value);
|
|
atom_udta_add_tag (udta, fourcc, flags, data, 2);
|
|
} else {
|
|
GST_WRITE_UINT32_BE (data + 2, value);
|
|
atom_udta_add_tag (udta, fourcc, flags, data, 8);
|
|
}
|
|
}
|
|
|
|
#define GST_BUFFER_NEW_READONLY(mem, size) \
|
|
gst_buffer_new_wrapped_full (GST_MEMORY_FLAG_READONLY, mem, size, \
|
|
0, size, mem, NULL)
|
|
|
|
void
|
|
atom_udta_add_blob_tag (AtomUDTA * udta, guint8 * data, guint size)
|
|
{
|
|
AtomData *data_atom;
|
|
guint len;
|
|
guint32 fourcc;
|
|
|
|
if (size < 8)
|
|
return;
|
|
|
|
/* blob is unparsed atom;
|
|
* extract size and fourcc, and wrap remainder in data atom */
|
|
len = GST_READ_UINT32_BE (data);
|
|
fourcc = GST_READ_UINT32_LE (data + 4);
|
|
if (len > size)
|
|
return;
|
|
|
|
data_atom = atom_data_new_from_data (fourcc, data + 8, len - 8);
|
|
|
|
atom_udta_append_tag (udta,
|
|
build_atom_info_wrapper ((Atom *) data_atom, atom_data_copy_data,
|
|
atom_data_free));
|
|
}
|
|
|
|
void
|
|
atom_udta_add_3gp_tag (AtomUDTA * udta, guint32 fourcc, guint8 * data,
|
|
guint size)
|
|
{
|
|
AtomData *data_atom;
|
|
|
|
data_atom = atom_data_new (fourcc);
|
|
|
|
/* need full atom */
|
|
atom_data_alloc_mem (data_atom, size + 4);
|
|
|
|
/* full atom: version and flags */
|
|
GST_WRITE_UINT32_BE (data_atom->data, 0);
|
|
memcpy (data_atom->data + 4, data, size);
|
|
|
|
atom_udta_append_tag (udta,
|
|
build_atom_info_wrapper ((Atom *) data_atom, atom_data_copy_data,
|
|
atom_data_free));
|
|
}
|
|
|
|
guint16
|
|
language_code (const char *lang)
|
|
{
|
|
g_return_val_if_fail (lang != NULL, 0);
|
|
g_return_val_if_fail (strlen (lang) == 3, 0);
|
|
|
|
return (((lang[0] - 0x60) & 0x1F) << 10) + (((lang[1] - 0x60) & 0x1F) << 5) +
|
|
((lang[2] - 0x60) & 0x1F);
|
|
}
|
|
|
|
void
|
|
atom_udta_add_3gp_str_int_tag (AtomUDTA * udta, guint32 fourcc,
|
|
const gchar * value, gint16 ivalue)
|
|
{
|
|
gint len = 0, size = 0;
|
|
guint8 *data;
|
|
|
|
if (value) {
|
|
len = strlen (value);
|
|
size = len + 3;
|
|
}
|
|
|
|
if (ivalue >= 0)
|
|
size += 2;
|
|
|
|
data = g_malloc (size + 3);
|
|
/* language tag and null-terminated UTF-8 string */
|
|
if (value) {
|
|
GST_WRITE_UINT16_BE (data, language_code (GST_QT_MUX_DEFAULT_TAG_LANGUAGE));
|
|
/* include 0 terminator */
|
|
memcpy (data + 2, value, len + 1);
|
|
}
|
|
/* 16-bit unsigned int if standalone, otherwise 8-bit */
|
|
if (ivalue >= 0) {
|
|
if (size == 2)
|
|
GST_WRITE_UINT16_BE (data + size - 2, ivalue);
|
|
else {
|
|
GST_WRITE_UINT8 (data + size - 2, ivalue & 0xFF);
|
|
size--;
|
|
}
|
|
}
|
|
|
|
atom_udta_add_3gp_tag (udta, fourcc, data, size);
|
|
g_free (data);
|
|
}
|
|
|
|
void
|
|
atom_udta_add_3gp_str_tag (AtomUDTA * udta, guint32 fourcc, const gchar * value)
|
|
{
|
|
atom_udta_add_3gp_str_int_tag (udta, fourcc, value, -1);
|
|
}
|
|
|
|
void
|
|
atom_udta_add_3gp_uint_tag (AtomUDTA * udta, guint32 fourcc, guint16 value)
|
|
{
|
|
atom_udta_add_3gp_str_int_tag (udta, fourcc, NULL, value);
|
|
}
|
|
|
|
void
|
|
atom_udta_add_xmp_tags (AtomUDTA * udta, GstBuffer * xmpbuffer)
|
|
{
|
|
AtomData *data_atom = NULL;
|
|
|
|
if (udta->context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
if (xmpbuffer) {
|
|
data_atom = atom_data_new_from_gst_buffer (FOURCC_XMP_, xmpbuffer);
|
|
udta->entries = g_list_append (udta->entries,
|
|
build_atom_info_wrapper ((Atom *) data_atom, atom_data_copy_data,
|
|
atom_data_free));
|
|
}
|
|
} else {
|
|
GST_DEBUG ("Not adding xmp to moov atom, it is only used in 'mov' format");
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Functions for specifying media types
|
|
*/
|
|
|
|
static void
|
|
atom_minf_set_audio (AtomMINF * minf)
|
|
{
|
|
atom_minf_clear_handlers (minf);
|
|
minf->smhd = atom_smhd_new ();
|
|
}
|
|
|
|
static void
|
|
atom_minf_set_video (AtomMINF * minf, AtomsContext * context)
|
|
{
|
|
atom_minf_clear_handlers (minf);
|
|
minf->vmhd = atom_vmhd_new (context);
|
|
}
|
|
|
|
static void
|
|
atom_minf_set_subtitle (AtomMINF * minf)
|
|
{
|
|
atom_minf_clear_handlers (minf);
|
|
}
|
|
|
|
static void
|
|
atom_hdlr_set_type (AtomHDLR * hdlr, AtomsContext * context, guint32 comp_type,
|
|
guint32 hdlr_type)
|
|
{
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
hdlr->component_type = comp_type;
|
|
}
|
|
hdlr->handler_type = hdlr_type;
|
|
}
|
|
|
|
static void
|
|
atom_hdlr_set_name (AtomHDLR * hdlr, const char *name)
|
|
{
|
|
g_free (hdlr->name);
|
|
hdlr->name = g_strdup (name);
|
|
}
|
|
|
|
static void
|
|
atom_mdia_set_hdlr_type_audio (AtomMDIA * mdia, AtomsContext * context)
|
|
{
|
|
atom_hdlr_set_type (&mdia->hdlr, context, FOURCC_mhlr, FOURCC_soun);
|
|
/* Some players (low-end hardware) check for this name, which is what
|
|
* QuickTime itself sets */
|
|
atom_hdlr_set_name (&mdia->hdlr, "SoundHandler");
|
|
}
|
|
|
|
static void
|
|
atom_mdia_set_hdlr_type_video (AtomMDIA * mdia, AtomsContext * context)
|
|
{
|
|
atom_hdlr_set_type (&mdia->hdlr, context, FOURCC_mhlr, FOURCC_vide);
|
|
/* Some players (low-end hardware) check for this name, which is what
|
|
* QuickTime itself sets */
|
|
atom_hdlr_set_name (&mdia->hdlr, "VideoHandler");
|
|
}
|
|
|
|
static void
|
|
atom_mdia_set_hdlr_type_subtitle (AtomMDIA * mdia, AtomsContext * context)
|
|
{
|
|
atom_hdlr_set_type (&mdia->hdlr, context, FOURCC_mhlr, FOURCC_sbtl);
|
|
|
|
/* Just follows the pattern from video and audio above */
|
|
atom_hdlr_set_name (&mdia->hdlr, "SubtitleHandler");
|
|
}
|
|
|
|
static void
|
|
atom_mdia_set_audio (AtomMDIA * mdia, AtomsContext * context)
|
|
{
|
|
atom_mdia_set_hdlr_type_audio (mdia, context);
|
|
atom_minf_set_audio (&mdia->minf);
|
|
}
|
|
|
|
static void
|
|
atom_mdia_set_video (AtomMDIA * mdia, AtomsContext * context)
|
|
{
|
|
atom_mdia_set_hdlr_type_video (mdia, context);
|
|
atom_minf_set_video (&mdia->minf, context);
|
|
}
|
|
|
|
static void
|
|
atom_mdia_set_subtitle (AtomMDIA * mdia, AtomsContext * context)
|
|
{
|
|
atom_mdia_set_hdlr_type_subtitle (mdia, context);
|
|
atom_minf_set_subtitle (&mdia->minf);
|
|
}
|
|
|
|
static void
|
|
atom_tkhd_set_audio (AtomTKHD * tkhd)
|
|
{
|
|
tkhd->volume = 0x0100;
|
|
tkhd->width = tkhd->height = 0;
|
|
}
|
|
|
|
static void
|
|
atom_tkhd_set_video (AtomTKHD * tkhd, AtomsContext * context, guint32 width,
|
|
guint32 height)
|
|
{
|
|
tkhd->volume = 0;
|
|
|
|
/* qt and ISO base media do not contradict, and examples agree */
|
|
tkhd->width = width;
|
|
tkhd->height = height;
|
|
}
|
|
|
|
static void
|
|
atom_tkhd_set_subtitle (AtomTKHD * tkhd, AtomsContext * context, guint32 width,
|
|
guint32 height)
|
|
{
|
|
tkhd->volume = 0;
|
|
|
|
/* qt and ISO base media do not contradict, and examples agree */
|
|
tkhd->width = width;
|
|
tkhd->height = height;
|
|
}
|
|
|
|
|
|
static void
|
|
atom_edts_add_entry (AtomEDTS * edts, gint index, EditListEntry * entry)
|
|
{
|
|
EditListEntry *e =
|
|
(EditListEntry *) g_slist_nth_data (edts->elst.entries, index);
|
|
/* Create a new entry if missing (appends to the list if index is larger) */
|
|
if (e == NULL) {
|
|
e = g_new (EditListEntry, 1);
|
|
edts->elst.entries = g_slist_insert (edts->elst.entries, e, index);
|
|
}
|
|
|
|
/* Update the entry */
|
|
*e = *entry;
|
|
}
|
|
|
|
void
|
|
atom_trak_edts_clear (AtomTRAK * trak)
|
|
{
|
|
if (trak->edts) {
|
|
atom_edts_free (trak->edts);
|
|
trak->edts = NULL;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Update an entry in this trak edits list, creating it if needed.
|
|
* index is the index of the entry to update, or create if it's past the end.
|
|
* duration is in the moov's timescale
|
|
* media_time is the offset in the media time to start from (media's timescale)
|
|
* rate is a 32 bits fixed-point
|
|
*/
|
|
void
|
|
atom_trak_set_elst_entry (AtomTRAK * trak, gint index,
|
|
guint32 duration, guint32 media_time, guint32 rate)
|
|
{
|
|
EditListEntry entry;
|
|
|
|
entry.duration = duration;
|
|
entry.media_time = media_time;
|
|
entry.media_rate = rate;
|
|
|
|
if (trak->edts == NULL)
|
|
trak->edts = atom_edts_new ();
|
|
|
|
atom_edts_add_entry (trak->edts, index, &entry);
|
|
}
|
|
|
|
/* re-negotiation is prevented at top-level, so only 1 entry expected.
|
|
* Quite some more care here and elsewhere may be needed to
|
|
* support several entries */
|
|
static SampleTableEntryMP4A *
|
|
atom_trak_add_audio_entry (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 type)
|
|
{
|
|
AtomSTSD *stsd = &trak->mdia.minf.stbl.stsd;
|
|
SampleTableEntryMP4A *mp4a = sample_entry_mp4a_new ();
|
|
|
|
mp4a->se.header.type = type;
|
|
mp4a->se.kind = AUDIO;
|
|
mp4a->compression_id = -1;
|
|
mp4a->se.data_reference_index = 1;
|
|
|
|
stsd->entries = g_list_prepend (stsd->entries, mp4a);
|
|
stsd->n_entries++;
|
|
return mp4a;
|
|
}
|
|
|
|
/* Compute a timescale, rounding framerates when the denominator is not
|
|
* well-known (1001, 1).
|
|
*
|
|
* Returns 10000 for variable framerates.
|
|
*/
|
|
guint
|
|
atom_framerate_to_timescale (gint n, gint d)
|
|
{
|
|
if (n == 0)
|
|
return 10000;
|
|
|
|
if (d != 1 && d != 1001) {
|
|
/* otherwise there are probably rounding errors and we should rather guess
|
|
* if it's close enough to a well known framerate */
|
|
gst_video_guess_framerate (gst_util_uint64_scale (d, GST_SECOND, n), &n,
|
|
&d);
|
|
}
|
|
|
|
if (d == 1001) {
|
|
return n;
|
|
} else {
|
|
return gst_util_uint64_scale (n, 100, d);
|
|
}
|
|
}
|
|
|
|
static SampleTableEntryTMCD *
|
|
atom_trak_add_timecode_entry (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 trak_timescale, GstVideoTimeCode * tc)
|
|
{
|
|
AtomSTSD *stsd = &trak->mdia.minf.stbl.stsd;
|
|
SampleTableEntryTMCD *tmcd = sample_entry_tmcd_new ();
|
|
|
|
g_assert (trak_timescale != 0);
|
|
|
|
trak->mdia.hdlr.component_type = FOURCC_mhlr;
|
|
trak->mdia.hdlr.handler_type = FOURCC_tmcd;
|
|
g_free (trak->mdia.hdlr.name);
|
|
trak->mdia.hdlr.name = g_strdup ("Time Code Media Handler");
|
|
trak->mdia.mdhd.time_info.timescale = trak_timescale;
|
|
|
|
tmcd->se.kind = TIMECODE;
|
|
tmcd->se.data_reference_index = 1;
|
|
tmcd->tc_flags = TC_24H_MAX;
|
|
if (tc->config.flags &= GST_VIDEO_TIME_CODE_FLAGS_DROP_FRAME)
|
|
tmcd->tc_flags |= TC_DROP_FRAME;
|
|
tmcd->name.language_code = 0;
|
|
tmcd->name.name = g_strdup ("Tape");
|
|
tmcd->timescale = trak_timescale;
|
|
tmcd->frame_duration =
|
|
gst_util_uint64_scale (tmcd->timescale, tc->config.fps_d,
|
|
tc->config.fps_n);
|
|
if (tc->config.fps_d == 1001)
|
|
tmcd->n_frames = tc->config.fps_n / 1000;
|
|
else
|
|
tmcd->n_frames = tc->config.fps_n / tc->config.fps_d;
|
|
|
|
stsd->entries = g_list_prepend (stsd->entries, tmcd);
|
|
stsd->n_entries++;
|
|
return tmcd;
|
|
}
|
|
|
|
static SampleTableEntryMP4V *
|
|
atom_trak_add_video_entry (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 type)
|
|
{
|
|
SampleTableEntryMP4V *mp4v = sample_entry_mp4v_new (context);
|
|
AtomSTSD *stsd = &trak->mdia.minf.stbl.stsd;
|
|
|
|
mp4v->se.header.type = type;
|
|
mp4v->se.kind = VIDEO;
|
|
mp4v->se.data_reference_index = 1;
|
|
mp4v->horizontal_resolution = 72 << 16;
|
|
mp4v->vertical_resolution = 72 << 16;
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
mp4v->spatial_quality = 512;
|
|
mp4v->temporal_quality = 512;
|
|
}
|
|
|
|
stsd->entries = g_list_prepend (stsd->entries, mp4v);
|
|
stsd->n_entries++;
|
|
return mp4v;
|
|
}
|
|
|
|
static SampleTableEntryTX3G *
|
|
atom_trak_add_subtitle_entry (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 type)
|
|
{
|
|
SampleTableEntryTX3G *tx3g = sample_entry_tx3g_new ();
|
|
AtomSTSD *stsd = &trak->mdia.minf.stbl.stsd;
|
|
|
|
tx3g->se.header.type = type;
|
|
tx3g->se.kind = SUBTITLE;
|
|
tx3g->se.data_reference_index = 1;
|
|
|
|
stsd->entries = g_list_prepend (stsd->entries, tx3g);
|
|
stsd->n_entries++;
|
|
return tx3g;
|
|
}
|
|
|
|
|
|
void
|
|
atom_trak_set_constant_size_samples (AtomTRAK * trak, guint32 sample_size)
|
|
{
|
|
trak->mdia.minf.stbl.stsz.sample_size = sample_size;
|
|
}
|
|
|
|
static void
|
|
atom_trak_set_audio (AtomTRAK * trak, AtomsContext * context)
|
|
{
|
|
atom_tkhd_set_audio (&trak->tkhd);
|
|
atom_mdia_set_audio (&trak->mdia, context);
|
|
}
|
|
|
|
static void
|
|
atom_trak_set_video (AtomTRAK * trak, AtomsContext * context, guint32 width,
|
|
guint32 height)
|
|
{
|
|
atom_tkhd_set_video (&trak->tkhd, context, width, height);
|
|
atom_mdia_set_video (&trak->mdia, context);
|
|
}
|
|
|
|
static void
|
|
atom_trak_set_subtitle (AtomTRAK * trak, AtomsContext * context)
|
|
{
|
|
atom_tkhd_set_subtitle (&trak->tkhd, context, 0, 0);
|
|
atom_mdia_set_subtitle (&trak->mdia, context);
|
|
}
|
|
|
|
static void
|
|
atom_trak_set_audio_commons (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 rate)
|
|
{
|
|
atom_trak_set_audio (trak, context);
|
|
trak->mdia.mdhd.time_info.timescale = rate;
|
|
}
|
|
|
|
static void
|
|
atom_trak_set_video_commons (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 rate, guint32 width, guint32 height)
|
|
{
|
|
atom_trak_set_video (trak, context, width, height);
|
|
trak->mdia.mdhd.time_info.timescale = rate;
|
|
trak->tkhd.width = width << 16;
|
|
trak->tkhd.height = height << 16;
|
|
}
|
|
|
|
static void
|
|
atom_trak_set_subtitle_commons (AtomTRAK * trak, AtomsContext * context)
|
|
{
|
|
atom_trak_set_subtitle (trak, context);
|
|
trak->mdia.mdhd.time_info.timescale = 1000;
|
|
|
|
trak->tkhd.alternate_group = 2; /* same for all subtitles */
|
|
trak->tkhd.layer = -1; /* above video (layer 0) */
|
|
}
|
|
|
|
void
|
|
sample_table_entry_add_ext_atom (SampleTableEntry * ste, AtomInfo * ext)
|
|
{
|
|
GList **list = NULL;
|
|
if (ste->kind == AUDIO) {
|
|
list = &(((SampleTableEntryMP4A *) ste)->extension_atoms);
|
|
} else if (ste->kind == VIDEO) {
|
|
list = &(((SampleTableEntryMP4V *) ste)->extension_atoms);
|
|
} else {
|
|
g_assert_not_reached ();
|
|
return;
|
|
}
|
|
|
|
*list = g_list_prepend (*list, ext);
|
|
}
|
|
|
|
SampleTableEntryMP4A *
|
|
atom_trak_set_audio_type (AtomTRAK * trak, AtomsContext * context,
|
|
AudioSampleEntry * entry, guint32 scale, AtomInfo * ext, gint sample_size)
|
|
{
|
|
SampleTableEntryMP4A *ste;
|
|
|
|
atom_trak_set_audio_commons (trak, context, scale);
|
|
atom_stsd_remove_entries (&trak->mdia.minf.stbl.stsd);
|
|
ste = atom_trak_add_audio_entry (trak, context, entry->fourcc);
|
|
|
|
trak->is_video = FALSE;
|
|
trak->is_h264 = FALSE;
|
|
|
|
ste->version = entry->version;
|
|
ste->compression_id = entry->compression_id;
|
|
ste->sample_size = entry->sample_size;
|
|
ste->sample_rate = entry->sample_rate << 16;
|
|
ste->channels = entry->channels;
|
|
|
|
ste->samples_per_packet = entry->samples_per_packet;
|
|
ste->bytes_per_sample = entry->bytes_per_sample;
|
|
ste->bytes_per_packet = entry->bytes_per_packet;
|
|
ste->bytes_per_frame = entry->bytes_per_frame;
|
|
|
|
if (ext)
|
|
ste->extension_atoms = g_list_prepend (ste->extension_atoms, ext);
|
|
|
|
/* 0 size means variable size */
|
|
atom_trak_set_constant_size_samples (trak, sample_size);
|
|
|
|
return ste;
|
|
}
|
|
|
|
SampleTableEntryTMCD *
|
|
atom_trak_set_timecode_type (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 trak_timescale, GstVideoTimeCode * tc)
|
|
{
|
|
SampleTableEntryTMCD *ste;
|
|
|
|
if (context->flavor != ATOMS_TREE_FLAVOR_MOV &&
|
|
!context->force_create_timecode_trak) {
|
|
return NULL;
|
|
}
|
|
|
|
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
AtomGMHD *gmhd = trak->mdia.minf.gmhd;
|
|
|
|
gmhd = atom_gmhd_new ();
|
|
gmhd->gmin.graphics_mode = 0x0040;
|
|
gmhd->gmin.opcolor[0] = 0x8000;
|
|
gmhd->gmin.opcolor[1] = 0x8000;
|
|
gmhd->gmin.opcolor[2] = 0x8000;
|
|
gmhd->tmcd = atom_tmcd_new ();
|
|
gmhd->tmcd->tcmi.text_size = 12;
|
|
gmhd->tmcd->tcmi.font_name = g_strdup ("Chicago"); /* Pascal string */
|
|
|
|
trak->mdia.minf.gmhd = gmhd;
|
|
} else if (context->force_create_timecode_trak) {
|
|
AtomNMHD *nmhd = trak->mdia.minf.nmhd;
|
|
/* MOV files use GMHD, other files use NMHD */
|
|
|
|
nmhd = atom_nmhd_new ();
|
|
trak->mdia.minf.nmhd = nmhd;
|
|
} else {
|
|
return NULL;
|
|
}
|
|
ste = atom_trak_add_timecode_entry (trak, context, trak_timescale, tc);
|
|
trak->is_video = FALSE;
|
|
trak->is_h264 = FALSE;
|
|
|
|
return ste;
|
|
}
|
|
|
|
SampleTableEntry *
|
|
atom_trak_set_caption_type (AtomTRAK * trak, AtomsContext * context,
|
|
guint32 trak_timescale, guint32 caption_type)
|
|
{
|
|
SampleTableEntry *ste;
|
|
AtomGMHD *gmhd = trak->mdia.minf.gmhd;
|
|
AtomSTSD *stsd = &trak->mdia.minf.stbl.stsd;
|
|
|
|
if (context->flavor != ATOMS_TREE_FLAVOR_MOV) {
|
|
return NULL;
|
|
}
|
|
|
|
trak->mdia.mdhd.time_info.timescale = trak_timescale;
|
|
trak->mdia.hdlr.component_type = FOURCC_mhlr;
|
|
trak->mdia.hdlr.handler_type = FOURCC_clcp;
|
|
g_free (trak->mdia.hdlr.name);
|
|
trak->mdia.hdlr.name = g_strdup ("Closed Caption Media Handler");
|
|
|
|
ste = g_new0 (SampleTableEntry, 1);
|
|
atom_sample_entry_init (ste, caption_type);
|
|
ste->kind = CLOSEDCAPTION;
|
|
ste->data_reference_index = 1;
|
|
stsd->entries = g_list_prepend (stsd->entries, ste);
|
|
stsd->n_entries++;
|
|
|
|
gmhd = atom_gmhd_new ();
|
|
gmhd->gmin.graphics_mode = 0x0040;
|
|
gmhd->gmin.opcolor[0] = 0x8000;
|
|
gmhd->gmin.opcolor[1] = 0x8000;
|
|
gmhd->gmin.opcolor[2] = 0x8000;
|
|
|
|
trak->mdia.minf.gmhd = gmhd;
|
|
trak->is_video = FALSE;
|
|
trak->is_h264 = FALSE;
|
|
|
|
return ste;
|
|
}
|
|
|
|
static AtomInfo *
|
|
build_pasp_extension (gint par_width, gint par_height)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_pasp);
|
|
guint8 *data;
|
|
|
|
atom_data_alloc_mem (atom_data, 8);
|
|
data = atom_data->data;
|
|
|
|
/* ihdr = image header box */
|
|
GST_WRITE_UINT32_BE (data, par_width);
|
|
GST_WRITE_UINT32_BE (data + 4, par_height);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_fiel_extension (GstVideoInterlaceMode mode, GstVideoFieldOrder order)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_fiel);
|
|
guint8 *data;
|
|
gint field_order;
|
|
gint interlace;
|
|
|
|
atom_data_alloc_mem (atom_data, 2);
|
|
data = atom_data->data;
|
|
|
|
if (mode == GST_VIDEO_INTERLACE_MODE_PROGRESSIVE) {
|
|
interlace = 1;
|
|
field_order = 0;
|
|
} else if (mode == GST_VIDEO_INTERLACE_MODE_INTERLEAVED) {
|
|
interlace = 2;
|
|
field_order = order == GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST ? 9 : 14;
|
|
} else {
|
|
interlace = 0;
|
|
field_order = 0;
|
|
}
|
|
|
|
GST_WRITE_UINT8 (data, interlace);
|
|
GST_WRITE_UINT8 (data + 1, field_order);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_colr_extension (const GstVideoColorimetry * colorimetry, gboolean is_mp4)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_colr);
|
|
guint8 *data;
|
|
guint16 primaries;
|
|
guint16 transfer_function;
|
|
guint16 matrix;
|
|
|
|
primaries = gst_video_color_primaries_to_iso (colorimetry->primaries);
|
|
transfer_function =
|
|
gst_video_transfer_function_to_iso (colorimetry->transfer);
|
|
matrix = gst_video_color_matrix_to_iso (colorimetry->matrix);
|
|
|
|
atom_data_alloc_mem (atom_data, 10 + (is_mp4 ? 1 : 0));
|
|
data = atom_data->data;
|
|
|
|
/* colour specification box */
|
|
if (is_mp4)
|
|
GST_WRITE_UINT32_LE (data, FOURCC_nclx);
|
|
else
|
|
GST_WRITE_UINT32_LE (data, FOURCC_nclc);
|
|
|
|
GST_WRITE_UINT16_BE (data + 4, primaries);
|
|
GST_WRITE_UINT16_BE (data + 6, transfer_function);
|
|
GST_WRITE_UINT16_BE (data + 8, matrix);
|
|
|
|
if (is_mp4) {
|
|
GST_WRITE_UINT8 (data + 10,
|
|
colorimetry->range == GST_VIDEO_COLOR_RANGE_0_255 ? 0x80 : 0x00);
|
|
}
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_clap_extension (gint width_n, gint width_d, gint height_n, gint height_d,
|
|
gint h_off_n, gint h_off_d, gint v_off_n, gint v_off_d)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_clap);
|
|
guint8 *data;
|
|
|
|
atom_data_alloc_mem (atom_data, 32);
|
|
data = atom_data->data;
|
|
|
|
GST_WRITE_UINT32_BE (data, width_n);
|
|
GST_WRITE_UINT32_BE (data + 4, width_d);
|
|
GST_WRITE_UINT32_BE (data + 8, height_n);
|
|
GST_WRITE_UINT32_BE (data + 12, height_d);
|
|
GST_WRITE_UINT32_BE (data + 16, h_off_n);
|
|
GST_WRITE_UINT32_BE (data + 20, h_off_d);
|
|
GST_WRITE_UINT32_BE (data + 24, v_off_n);
|
|
GST_WRITE_UINT32_BE (data + 28, v_off_d);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_tapt_extension (gint clef_width, gint clef_height, gint prof_width,
|
|
gint prof_height, gint enof_width, gint enof_height)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_tapt);
|
|
guint8 *data;
|
|
|
|
atom_data_alloc_mem (atom_data, 60);
|
|
data = atom_data->data;
|
|
|
|
GST_WRITE_UINT32_BE (data, 20);
|
|
GST_WRITE_UINT32_LE (data + 4, FOURCC_clef);
|
|
GST_WRITE_UINT32_BE (data + 8, 0);
|
|
GST_WRITE_UINT32_BE (data + 12, clef_width);
|
|
GST_WRITE_UINT32_BE (data + 16, clef_height);
|
|
|
|
GST_WRITE_UINT32_BE (data + 20, 20);
|
|
GST_WRITE_UINT32_LE (data + 24, FOURCC_prof);
|
|
GST_WRITE_UINT32_BE (data + 28, 0);
|
|
GST_WRITE_UINT32_BE (data + 32, prof_width);
|
|
GST_WRITE_UINT32_BE (data + 36, prof_height);
|
|
|
|
GST_WRITE_UINT32_BE (data + 40, 20);
|
|
GST_WRITE_UINT32_LE (data + 44, FOURCC_enof);
|
|
GST_WRITE_UINT32_BE (data + 48, 0);
|
|
GST_WRITE_UINT32_BE (data + 52, enof_width);
|
|
GST_WRITE_UINT32_BE (data + 56, enof_height);
|
|
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
static AtomInfo *
|
|
build_mov_video_sample_description_padding_extension (void)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_clap);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_copy_empty,
|
|
atom_data_free);
|
|
}
|
|
|
|
SampleTableEntryMP4V *
|
|
atom_trak_set_video_type (AtomTRAK * trak, AtomsContext * context,
|
|
VisualSampleEntry * entry, guint32 scale, GList * ext_atoms_list)
|
|
{
|
|
SampleTableEntryMP4V *ste;
|
|
guint dwidth, dheight;
|
|
gint par_n = 0, par_d = 0;
|
|
|
|
par_n = entry->par_n;
|
|
par_d = entry->par_d;
|
|
|
|
dwidth = entry->width;
|
|
dheight = entry->height;
|
|
/* ISO file spec says track header w/h indicates track's visual presentation
|
|
* (so this together with pixels w/h implicitly defines PAR) */
|
|
if (par_n && (context->flavor != ATOMS_TREE_FLAVOR_MOV)) {
|
|
dwidth = entry->width * par_n / par_d;
|
|
dheight = entry->height;
|
|
}
|
|
|
|
if (trak->mdia.minf.stbl.stsd.n_entries < 1) {
|
|
atom_trak_set_video_commons (trak, context, scale, dwidth, dheight);
|
|
trak->is_video = TRUE;
|
|
trak->is_h264 = (entry->fourcc == FOURCC_avc1
|
|
|| entry->fourcc == FOURCC_avc3);
|
|
}
|
|
ste = atom_trak_add_video_entry (trak, context, entry->fourcc);
|
|
|
|
ste->version = entry->version;
|
|
ste->width = entry->width;
|
|
ste->height = entry->height;
|
|
ste->depth = entry->depth;
|
|
ste->color_table_id = entry->color_table_id;
|
|
ste->frame_count = entry->frame_count;
|
|
|
|
if (ext_atoms_list)
|
|
ste->extension_atoms = g_list_concat (ste->extension_atoms, ext_atoms_list);
|
|
|
|
ste->extension_atoms = g_list_append (ste->extension_atoms,
|
|
build_pasp_extension (par_n, par_d));
|
|
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_MOV) {
|
|
/* append 0 as a terminator "length" to work around some broken software */
|
|
ste->extension_atoms =
|
|
g_list_append (ste->extension_atoms,
|
|
build_mov_video_sample_description_padding_extension ());
|
|
}
|
|
|
|
return ste;
|
|
}
|
|
|
|
void
|
|
subtitle_sample_entry_init (SubtitleSampleEntry * entry)
|
|
{
|
|
entry->font_size = 0;
|
|
entry->font_face = 0;
|
|
entry->foreground_color_rgba = 0xFFFFFFFF; /* all white, opaque */
|
|
}
|
|
|
|
SampleTableEntryTX3G *
|
|
atom_trak_set_subtitle_type (AtomTRAK * trak, AtomsContext * context,
|
|
SubtitleSampleEntry * entry)
|
|
{
|
|
SampleTableEntryTX3G *tx3g;
|
|
|
|
atom_trak_set_subtitle_commons (trak, context);
|
|
atom_stsd_remove_entries (&trak->mdia.minf.stbl.stsd);
|
|
tx3g = atom_trak_add_subtitle_entry (trak, context, entry->fourcc);
|
|
|
|
tx3g->font_face = entry->font_face;
|
|
tx3g->font_size = entry->font_size;
|
|
tx3g->foreground_color_rgba = entry->foreground_color_rgba;
|
|
|
|
trak->is_video = FALSE;
|
|
trak->is_h264 = FALSE;
|
|
|
|
return tx3g;
|
|
}
|
|
|
|
static void
|
|
atom_mfhd_init (AtomMFHD * mfhd, guint32 sequence_number)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&(mfhd->header), FOURCC_mfhd, 0, 0, 0, flags);
|
|
mfhd->sequence_number = sequence_number;
|
|
}
|
|
|
|
static void
|
|
atom_moof_init (AtomMOOF * moof, AtomsContext * context,
|
|
guint32 sequence_number)
|
|
{
|
|
atom_header_set (&moof->header, FOURCC_moof, 0, 0);
|
|
atom_mfhd_init (&moof->mfhd, sequence_number);
|
|
moof->trafs = NULL;
|
|
}
|
|
|
|
AtomMOOF *
|
|
atom_moof_new (AtomsContext * context, guint32 sequence_number)
|
|
{
|
|
AtomMOOF *moof = g_new0 (AtomMOOF, 1);
|
|
|
|
atom_moof_init (moof, context, sequence_number);
|
|
return moof;
|
|
}
|
|
|
|
void
|
|
atom_moof_set_base_offset (AtomMOOF * moof, guint64 offset)
|
|
{
|
|
GList *trafs = moof->trafs;
|
|
|
|
if (offset == moof->traf_offset)
|
|
return; /* Nothing to do */
|
|
|
|
while (trafs) {
|
|
AtomTRAF *traf = (AtomTRAF *) trafs->data;
|
|
|
|
traf->tfhd.header.flags[2] |= TF_BASE_DATA_OFFSET;
|
|
traf->tfhd.base_data_offset = offset;
|
|
trafs = g_list_next (trafs);
|
|
}
|
|
|
|
moof->traf_offset = offset;
|
|
}
|
|
|
|
static void
|
|
atom_trun_free (AtomTRUN * trun)
|
|
{
|
|
atom_full_clear (&trun->header);
|
|
atom_array_clear (&trun->entries);
|
|
g_free (trun);
|
|
}
|
|
|
|
static void
|
|
atom_sdtp_free (AtomSDTP * sdtp)
|
|
{
|
|
atom_full_clear (&sdtp->header);
|
|
atom_array_clear (&sdtp->entries);
|
|
g_free (sdtp);
|
|
}
|
|
|
|
void
|
|
atom_traf_free (AtomTRAF * traf)
|
|
{
|
|
GList *walker;
|
|
|
|
walker = traf->truns;
|
|
while (walker) {
|
|
atom_trun_free ((AtomTRUN *) walker->data);
|
|
walker = g_list_next (walker);
|
|
}
|
|
g_list_free (traf->truns);
|
|
traf->truns = NULL;
|
|
|
|
walker = traf->sdtps;
|
|
while (walker) {
|
|
atom_sdtp_free ((AtomSDTP *) walker->data);
|
|
walker = g_list_next (walker);
|
|
}
|
|
g_list_free (traf->sdtps);
|
|
traf->sdtps = NULL;
|
|
|
|
g_free (traf);
|
|
}
|
|
|
|
void
|
|
atom_moof_free (AtomMOOF * moof)
|
|
{
|
|
GList *walker;
|
|
|
|
walker = moof->trafs;
|
|
while (walker) {
|
|
atom_traf_free ((AtomTRAF *) walker->data);
|
|
walker = g_list_next (walker);
|
|
}
|
|
g_list_free (moof->trafs);
|
|
moof->trafs = NULL;
|
|
|
|
g_free (moof);
|
|
}
|
|
|
|
static guint64
|
|
atom_mfhd_copy_data (AtomMFHD * mfhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&mfhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (mfhd->sequence_number, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tfhd_copy_data (AtomTFHD * tfhd, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint32 flags;
|
|
|
|
if (!atom_full_copy_data (&tfhd->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (tfhd->track_ID, buffer, size, offset);
|
|
|
|
flags = atom_full_get_flags_as_uint (&tfhd->header);
|
|
|
|
if (flags & TF_BASE_DATA_OFFSET)
|
|
prop_copy_uint64 (tfhd->base_data_offset, buffer, size, offset);
|
|
if (flags & TF_SAMPLE_DESCRIPTION_INDEX)
|
|
prop_copy_uint32 (tfhd->sample_description_index, buffer, size, offset);
|
|
if (flags & TF_DEFAULT_SAMPLE_DURATION)
|
|
prop_copy_uint32 (tfhd->default_sample_duration, buffer, size, offset);
|
|
if (flags & TF_DEFAULT_SAMPLE_SIZE)
|
|
prop_copy_uint32 (tfhd->default_sample_size, buffer, size, offset);
|
|
if (flags & TF_DEFAULT_SAMPLE_FLAGS)
|
|
prop_copy_uint32 (tfhd->default_sample_flags, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_tfdt_copy_data (AtomTFDT * tfdt, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&tfdt->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
/* 32-bit time if version == 0 else 64-bit: */
|
|
if (tfdt->header.version == 0)
|
|
prop_copy_uint32 (tfdt->base_media_decode_time, buffer, size, offset);
|
|
else
|
|
prop_copy_uint64 (tfdt->base_media_decode_time, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_trun_copy_data (AtomTRUN * trun, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint32 flags, i;
|
|
|
|
flags = atom_full_get_flags_as_uint (&trun->header);
|
|
|
|
atom_full_set_flags_as_uint (&trun->header, flags);
|
|
|
|
if (!atom_full_copy_data (&trun->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (trun->sample_count, buffer, size, offset);
|
|
|
|
if (flags & TR_DATA_OFFSET) {
|
|
prop_copy_int32 (trun->data_offset, buffer, size, offset);
|
|
}
|
|
if (flags & TR_FIRST_SAMPLE_FLAGS)
|
|
prop_copy_uint32 (trun->first_sample_flags, buffer, size, offset);
|
|
|
|
for (i = 0; i < atom_array_get_len (&trun->entries); i++) {
|
|
TRUNSampleEntry *entry = &atom_array_index (&trun->entries, i);
|
|
|
|
if (flags & TR_SAMPLE_DURATION)
|
|
prop_copy_uint32 (entry->sample_duration, buffer, size, offset);
|
|
if (flags & TR_SAMPLE_SIZE)
|
|
prop_copy_uint32 (entry->sample_size, buffer, size, offset);
|
|
if (flags & TR_SAMPLE_FLAGS)
|
|
prop_copy_uint32 (entry->sample_flags, buffer, size, offset);
|
|
if (flags & TR_COMPOSITION_TIME_OFFSETS)
|
|
prop_copy_uint32 (entry->sample_composition_time_offset,
|
|
buffer, size, offset);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_sdtp_copy_data (AtomSDTP * sdtp, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
|
|
if (!atom_full_copy_data (&sdtp->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
/* all entries at once */
|
|
prop_copy_fixed_size_string (&atom_array_index (&sdtp->entries, 0),
|
|
atom_array_get_len (&sdtp->entries), buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_traf_copy_data (AtomTRAF * traf, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GList *walker;
|
|
|
|
if (!atom_copy_data (&traf->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_tfhd_copy_data (&traf->tfhd, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
if (!atom_tfdt_copy_data (&traf->tfdt, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
walker = g_list_first (traf->truns);
|
|
while (walker != NULL) {
|
|
if (!atom_trun_copy_data ((AtomTRUN *) walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
walker = g_list_next (walker);
|
|
}
|
|
|
|
walker = g_list_first (traf->sdtps);
|
|
while (walker != NULL) {
|
|
if (!atom_sdtp_copy_data ((AtomSDTP *) walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
walker = g_list_next (walker);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
/* creates moof atom; metadata is written expecting actual buffer data
|
|
* is in mdata directly after moof, and is consecutively written per trak */
|
|
guint64
|
|
atom_moof_copy_data (AtomMOOF * moof, guint8 ** buffer,
|
|
guint64 * size, guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GList *walker;
|
|
|
|
if (!atom_copy_data (&moof->header, buffer, size, offset))
|
|
return 0;
|
|
|
|
if (!atom_mfhd_copy_data (&moof->mfhd, buffer, size, offset))
|
|
return 0;
|
|
|
|
walker = g_list_first (moof->trafs);
|
|
while (walker != NULL) {
|
|
if (!atom_traf_copy_data ((AtomTRAF *) walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
walker = g_list_next (walker);
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static void
|
|
atom_tfhd_init (AtomTFHD * tfhd, guint32 track_ID)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&tfhd->header, FOURCC_tfhd, 0, 0, 0, flags);
|
|
tfhd->track_ID = track_ID;
|
|
tfhd->base_data_offset = 0;
|
|
tfhd->sample_description_index = 1;
|
|
tfhd->default_sample_duration = 0;
|
|
tfhd->default_sample_size = 0;
|
|
tfhd->default_sample_flags = 0;
|
|
}
|
|
|
|
static void
|
|
atom_tfdt_init (AtomTFDT * tfdt)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
atom_full_init (&tfdt->header, FOURCC_tfdt, 0, 0, 0, flags);
|
|
|
|
tfdt->base_media_decode_time = 0;
|
|
}
|
|
|
|
static void
|
|
atom_trun_init (AtomTRUN * trun)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&trun->header, FOURCC_trun, 0, 0, 0, flags);
|
|
trun->sample_count = 0;
|
|
trun->data_offset = 0;
|
|
trun->first_sample_flags = 0;
|
|
atom_array_init (&trun->entries, 512);
|
|
}
|
|
|
|
static AtomTRUN *
|
|
atom_trun_new (void)
|
|
{
|
|
AtomTRUN *trun = g_new0 (AtomTRUN, 1);
|
|
|
|
atom_trun_init (trun);
|
|
return trun;
|
|
}
|
|
|
|
static void
|
|
atom_sdtp_init (AtomSDTP * sdtp)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&sdtp->header, FOURCC_sdtp, 0, 0, 0, flags);
|
|
atom_array_init (&sdtp->entries, 512);
|
|
}
|
|
|
|
static AtomSDTP *
|
|
atom_sdtp_new (AtomsContext * context)
|
|
{
|
|
AtomSDTP *sdtp = g_new0 (AtomSDTP, 1);
|
|
|
|
atom_sdtp_init (sdtp);
|
|
return sdtp;
|
|
}
|
|
|
|
static void
|
|
atom_traf_add_sdtp (AtomTRAF * traf, AtomSDTP * sdtp)
|
|
{
|
|
traf->sdtps = g_list_append (traf->sdtps, sdtp);
|
|
}
|
|
|
|
static void
|
|
atom_sdtp_add_samples (AtomSDTP * sdtp, guint8 val)
|
|
{
|
|
/* it does not make much/any sense according to specs,
|
|
* but that's how MS isml samples seem to do it */
|
|
atom_array_append (&sdtp->entries, val, 256);
|
|
}
|
|
|
|
void
|
|
atom_trun_set_offset (AtomTRUN * trun, gint32 offset)
|
|
{
|
|
trun->header.flags[2] |= TR_DATA_OFFSET;
|
|
trun->data_offset = offset;
|
|
}
|
|
|
|
static gboolean
|
|
atom_trun_can_append (AtomTRUN * trun, gint32 data_offset)
|
|
{
|
|
gsize trun_data_offset_end = trun->data_offset;
|
|
int i, n;
|
|
|
|
if (data_offset == 0)
|
|
return TRUE;
|
|
|
|
n = atom_array_get_len (&trun->entries);
|
|
for (i = 0; i < n; i++) {
|
|
TRUNSampleEntry *entry = &atom_array_index (&trun->entries, i);
|
|
trun_data_offset_end += entry->sample_size;
|
|
}
|
|
if (trun_data_offset_end != data_offset)
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
atom_trun_add_samples (AtomTRUN * trun, guint32 nsamples, guint32 delta,
|
|
guint32 size, guint32 flags, gint64 pts_offset)
|
|
{
|
|
int i;
|
|
|
|
if (pts_offset != 0)
|
|
trun->header.flags[1] |= (TR_COMPOSITION_TIME_OFFSETS >> 8);
|
|
|
|
for (i = 0; i < nsamples; i++) {
|
|
TRUNSampleEntry nentry;
|
|
|
|
nentry.sample_duration = delta;
|
|
nentry.sample_size = size;
|
|
nentry.sample_flags = flags;
|
|
if (pts_offset != 0) {
|
|
nentry.sample_composition_time_offset = pts_offset + i * delta;
|
|
} else {
|
|
nentry.sample_composition_time_offset = 0;
|
|
}
|
|
atom_array_append (&trun->entries, nentry, 256);
|
|
trun->sample_count++;
|
|
}
|
|
}
|
|
|
|
static void
|
|
atom_traf_init (AtomTRAF * traf, AtomsContext * context, guint32 track_ID)
|
|
{
|
|
atom_header_set (&traf->header, FOURCC_traf, 0, 0);
|
|
atom_tfdt_init (&traf->tfdt);
|
|
atom_tfhd_init (&traf->tfhd, track_ID);
|
|
traf->truns = NULL;
|
|
|
|
if (context->flavor == ATOMS_TREE_FLAVOR_ISML)
|
|
atom_traf_add_sdtp (traf, atom_sdtp_new (context));
|
|
}
|
|
|
|
AtomTRAF *
|
|
atom_traf_new (AtomsContext * context, guint32 track_ID)
|
|
{
|
|
AtomTRAF *traf = g_new0 (AtomTRAF, 1);
|
|
|
|
atom_traf_init (traf, context, track_ID);
|
|
return traf;
|
|
}
|
|
|
|
void
|
|
atom_traf_set_base_decode_time (AtomTRAF * traf, guint64 base_decode_time)
|
|
{
|
|
traf->tfdt.base_media_decode_time = base_decode_time;
|
|
/* If we need to write a 64-bit tfdt, set the atom version */
|
|
if (base_decode_time > G_MAXUINT32)
|
|
traf->tfdt.header.version = 1;
|
|
}
|
|
|
|
static void
|
|
atom_traf_add_trun (AtomTRAF * traf, AtomTRUN * trun)
|
|
{
|
|
traf->truns = g_list_append (traf->truns, trun);
|
|
}
|
|
|
|
void
|
|
atom_traf_add_samples (AtomTRAF * traf, guint32 nsamples,
|
|
guint32 delta, guint32 size, gint32 data_offset, gboolean sync,
|
|
gint64 pts_offset, gboolean sdtp_sync)
|
|
{
|
|
GList *l = NULL;
|
|
AtomTRUN *prev_trun, *trun = NULL;
|
|
guint32 flags;
|
|
|
|
/* 0x10000 is sample-is-difference-sample flag
|
|
* low byte stuff is what ismv uses */
|
|
flags = (sync ? 0x0 : 0x10000) | (sdtp_sync ? 0x40 : 0xc0);
|
|
|
|
if (traf->truns) {
|
|
trun = g_list_last (traf->truns)->data;
|
|
|
|
if (!atom_trun_can_append (trun, data_offset))
|
|
trun = NULL;
|
|
}
|
|
prev_trun = trun;
|
|
|
|
if (!traf->truns) {
|
|
/* optimistic; indicate all defaults present in tfhd */
|
|
traf->tfhd.header.flags[2] = TF_DEFAULT_SAMPLE_DURATION |
|
|
TF_DEFAULT_SAMPLE_SIZE | TF_DEFAULT_SAMPLE_FLAGS;
|
|
traf->tfhd.default_sample_duration = delta;
|
|
traf->tfhd.default_sample_size = size;
|
|
traf->tfhd.default_sample_flags = flags;
|
|
}
|
|
|
|
if (!trun) {
|
|
trun = atom_trun_new ();
|
|
atom_traf_add_trun (traf, trun);
|
|
trun->first_sample_flags = flags;
|
|
trun->data_offset = data_offset;
|
|
if (data_offset != 0)
|
|
trun->header.flags[2] |= TR_DATA_OFFSET;
|
|
}
|
|
|
|
/* check if still matching defaults,
|
|
* if not, abandon default and need entry for each sample */
|
|
if (traf->tfhd.default_sample_duration != delta || prev_trun == trun) {
|
|
traf->tfhd.header.flags[2] &= ~TF_DEFAULT_SAMPLE_DURATION;
|
|
for (l = traf->truns; l; l = g_list_next (l)) {
|
|
((AtomTRUN *) l->data)->header.flags[1] |= (TR_SAMPLE_DURATION >> 8);
|
|
}
|
|
}
|
|
if (traf->tfhd.default_sample_size != size || prev_trun == trun) {
|
|
traf->tfhd.header.flags[2] &= ~TF_DEFAULT_SAMPLE_SIZE;
|
|
for (l = traf->truns; l; l = g_list_next (l)) {
|
|
((AtomTRUN *) l->data)->header.flags[1] |= (TR_SAMPLE_SIZE >> 8);
|
|
}
|
|
}
|
|
if (traf->tfhd.default_sample_flags != flags || prev_trun == trun) {
|
|
if (trun->sample_count == 1) {
|
|
/* at least will need first sample flag */
|
|
traf->tfhd.default_sample_flags = flags;
|
|
trun->header.flags[2] |= TR_FIRST_SAMPLE_FLAGS;
|
|
} else {
|
|
/* now we need sample flags for each sample */
|
|
traf->tfhd.header.flags[2] &= ~TF_DEFAULT_SAMPLE_FLAGS;
|
|
trun->header.flags[1] |= (TR_SAMPLE_FLAGS >> 8);
|
|
trun->header.flags[2] &= ~TR_FIRST_SAMPLE_FLAGS;
|
|
}
|
|
}
|
|
|
|
atom_trun_add_samples (trun, nsamples, delta, size, flags, pts_offset);
|
|
|
|
if (traf->sdtps)
|
|
atom_sdtp_add_samples (traf->sdtps->data, 0x10 | ((flags & 0xff) >> 4));
|
|
}
|
|
|
|
guint32
|
|
atom_traf_get_sample_num (AtomTRAF * traf)
|
|
{
|
|
AtomTRUN *trun;
|
|
|
|
if (G_UNLIKELY (!traf->truns))
|
|
return 0;
|
|
|
|
/* FIXME: only one trun? */
|
|
trun = traf->truns->data;
|
|
return atom_array_get_len (&trun->entries);
|
|
}
|
|
|
|
void
|
|
atom_moof_add_traf (AtomMOOF * moof, AtomTRAF * traf)
|
|
{
|
|
moof->trafs = g_list_append (moof->trafs, traf);
|
|
}
|
|
|
|
static void
|
|
atom_tfra_free (AtomTFRA * tfra)
|
|
{
|
|
atom_full_clear (&tfra->header);
|
|
atom_array_clear (&tfra->entries);
|
|
g_free (tfra);
|
|
}
|
|
|
|
AtomMFRA *
|
|
atom_mfra_new (AtomsContext * context)
|
|
{
|
|
AtomMFRA *mfra = g_new0 (AtomMFRA, 1);
|
|
|
|
atom_header_set (&mfra->header, FOURCC_mfra, 0, 0);
|
|
return mfra;
|
|
}
|
|
|
|
void
|
|
atom_mfra_add_tfra (AtomMFRA * mfra, AtomTFRA * tfra)
|
|
{
|
|
mfra->tfras = g_list_append (mfra->tfras, tfra);
|
|
}
|
|
|
|
void
|
|
atom_mfra_free (AtomMFRA * mfra)
|
|
{
|
|
GList *walker;
|
|
|
|
walker = mfra->tfras;
|
|
while (walker) {
|
|
atom_tfra_free ((AtomTFRA *) walker->data);
|
|
walker = g_list_next (walker);
|
|
}
|
|
g_list_free (mfra->tfras);
|
|
mfra->tfras = NULL;
|
|
|
|
atom_clear (&mfra->header);
|
|
g_free (mfra);
|
|
}
|
|
|
|
static void
|
|
atom_tfra_init (AtomTFRA * tfra, guint32 track_ID)
|
|
{
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
|
|
atom_full_init (&tfra->header, FOURCC_tfra, 0, 0, 0, flags);
|
|
tfra->track_ID = track_ID;
|
|
atom_array_init (&tfra->entries, 512);
|
|
}
|
|
|
|
AtomTFRA *
|
|
atom_tfra_new (AtomsContext * context, guint32 track_ID)
|
|
{
|
|
AtomTFRA *tfra = g_new0 (AtomTFRA, 1);
|
|
|
|
atom_tfra_init (tfra, track_ID);
|
|
return tfra;
|
|
|
|
}
|
|
|
|
static inline gint
|
|
need_bytes (guint32 num)
|
|
{
|
|
gint n = 0;
|
|
|
|
while (num >>= 8)
|
|
n++;
|
|
|
|
return n;
|
|
}
|
|
|
|
void
|
|
atom_tfra_add_entry (AtomTFRA * tfra, guint64 dts, guint32 sample_num)
|
|
{
|
|
TFRAEntry entry;
|
|
|
|
entry.time = dts;
|
|
/* fill in later */
|
|
entry.moof_offset = 0;
|
|
/* always write a single trun in a single traf */
|
|
entry.traf_number = 1;
|
|
entry.trun_number = 1;
|
|
entry.sample_number = sample_num;
|
|
|
|
/* auto-use 64 bits if needed */
|
|
if (dts > G_MAXUINT32)
|
|
tfra->header.version = 1;
|
|
|
|
/* 1 byte will always do for traf and trun number,
|
|
* check how much sample_num needs */
|
|
tfra->lengths = (tfra->lengths & 0xfc) ||
|
|
MAX (tfra->lengths, need_bytes (sample_num));
|
|
|
|
atom_array_append (&tfra->entries, entry, 256);
|
|
}
|
|
|
|
void
|
|
atom_tfra_update_offset (AtomTFRA * tfra, guint64 offset)
|
|
{
|
|
gint i;
|
|
|
|
/* auto-use 64 bits if needed */
|
|
if (offset > G_MAXUINT32)
|
|
tfra->header.version = 1;
|
|
|
|
for (i = atom_array_get_len (&tfra->entries) - 1; i >= 0; i--) {
|
|
TFRAEntry *entry = &atom_array_index (&tfra->entries, i);
|
|
|
|
if (entry->moof_offset)
|
|
break;
|
|
entry->moof_offset = offset;
|
|
}
|
|
}
|
|
|
|
static guint64
|
|
atom_tfra_copy_data (AtomTFRA * tfra, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint32 i;
|
|
TFRAEntry *entry;
|
|
guint32 data;
|
|
guint bytes;
|
|
guint version;
|
|
|
|
if (!atom_full_copy_data (&tfra->header, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (tfra->track_ID, buffer, size, offset);
|
|
prop_copy_uint32 (tfra->lengths, buffer, size, offset);
|
|
prop_copy_uint32 (atom_array_get_len (&tfra->entries), buffer, size, offset);
|
|
|
|
version = tfra->header.version;
|
|
for (i = 0; i < atom_array_get_len (&tfra->entries); ++i) {
|
|
entry = &atom_array_index (&tfra->entries, i);
|
|
if (version) {
|
|
prop_copy_uint64 (entry->time, buffer, size, offset);
|
|
prop_copy_uint64 (entry->moof_offset, buffer, size, offset);
|
|
} else {
|
|
prop_copy_uint32 (entry->time, buffer, size, offset);
|
|
prop_copy_uint32 (entry->moof_offset, buffer, size, offset);
|
|
}
|
|
|
|
bytes = (tfra->lengths & (0x3 << 4)) + 1;
|
|
data = GUINT32_TO_BE (entry->traf_number);
|
|
prop_copy_fixed_size_string (((guint8 *) & data) + 4 - bytes, bytes,
|
|
buffer, size, offset);
|
|
|
|
bytes = (tfra->lengths & (0x3 << 2)) + 1;
|
|
data = GUINT32_TO_BE (entry->trun_number);
|
|
prop_copy_fixed_size_string (((guint8 *) & data) + 4 - bytes, bytes,
|
|
buffer, size, offset);
|
|
|
|
bytes = (tfra->lengths & (0x3)) + 1;
|
|
data = GUINT32_TO_BE (entry->sample_number);
|
|
prop_copy_fixed_size_string (((guint8 *) & data) + 4 - bytes, bytes,
|
|
buffer, size, offset);
|
|
|
|
}
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
static guint64
|
|
atom_mfro_copy_data (guint32 s, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
guint8 flags[3] = { 0, 0, 0 };
|
|
AtomFull mfro;
|
|
|
|
atom_full_init (&mfro, FOURCC_mfro, 0, 0, 0, flags);
|
|
|
|
if (!atom_full_copy_data (&mfro, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
|
|
prop_copy_uint32 (s, buffer, size, offset);
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
|
|
guint64
|
|
atom_mfra_copy_data (AtomMFRA * mfra, guint8 ** buffer, guint64 * size,
|
|
guint64 * offset)
|
|
{
|
|
guint64 original_offset = *offset;
|
|
GList *walker;
|
|
|
|
if (!atom_copy_data (&mfra->header, buffer, size, offset))
|
|
return 0;
|
|
|
|
walker = g_list_first (mfra->tfras);
|
|
while (walker != NULL) {
|
|
if (!atom_tfra_copy_data ((AtomTFRA *) walker->data, buffer, size, offset)) {
|
|
return 0;
|
|
}
|
|
walker = g_list_next (walker);
|
|
}
|
|
|
|
/* 16 is the size of the mfro atom */
|
|
if (!atom_mfro_copy_data (*offset - original_offset + 16, buffer,
|
|
size, offset))
|
|
return 0;
|
|
|
|
atom_write_size (buffer, size, offset, original_offset);
|
|
return *offset - original_offset;
|
|
}
|
|
|
|
/* some sample description construction helpers */
|
|
|
|
AtomInfo *
|
|
build_esds_extension (AtomTRAK * trak, guint8 object_type, guint8 stream_type,
|
|
const GstBuffer * codec_data, guint32 avg_bitrate, guint32 max_bitrate)
|
|
{
|
|
guint32 track_id;
|
|
AtomESDS *esds;
|
|
|
|
track_id = trak->tkhd.track_ID;
|
|
|
|
esds = atom_esds_new ();
|
|
esds->es.id = track_id & 0xFFFF;
|
|
esds->es.dec_conf_desc.object_type = object_type;
|
|
esds->es.dec_conf_desc.stream_type = stream_type << 2 | 0x01;
|
|
|
|
if (avg_bitrate > 0)
|
|
esds->es.dec_conf_desc.avg_bitrate = avg_bitrate;
|
|
if (max_bitrate > 0)
|
|
esds->es.dec_conf_desc.max_bitrate = max_bitrate;
|
|
|
|
/* optional DecoderSpecificInfo */
|
|
if (codec_data) {
|
|
DecoderSpecificInfoDescriptor *desc;
|
|
gsize size;
|
|
|
|
esds->es.dec_conf_desc.dec_specific_info = desc =
|
|
desc_dec_specific_info_new ();
|
|
size = gst_buffer_get_size ((GstBuffer *) codec_data);
|
|
desc_dec_specific_info_alloc_data (desc, size);
|
|
gst_buffer_extract ((GstBuffer *) codec_data, 0, desc->data, size);
|
|
}
|
|
|
|
return build_atom_info_wrapper ((Atom *) esds, atom_esds_copy_data,
|
|
atom_esds_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_btrt_extension (guint32 buffer_size_db, guint32 avg_bitrate,
|
|
guint32 max_bitrate)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_btrt);
|
|
guint8 *data;
|
|
|
|
atom_data_alloc_mem (atom_data, 12);
|
|
data = atom_data->data;
|
|
|
|
GST_WRITE_UINT32_BE (data, buffer_size_db);
|
|
GST_WRITE_UINT32_BE (data + 4, max_bitrate);
|
|
GST_WRITE_UINT32_BE (data + 8, avg_bitrate);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
static AtomInfo *
|
|
build_mov_wave_extension (guint32 fourcc, AtomInfo * atom1, AtomInfo * atom2,
|
|
gboolean terminator)
|
|
{
|
|
AtomWAVE *wave;
|
|
AtomFRMA *frma;
|
|
Atom *ext_atom;
|
|
|
|
/* Build WAVE atom for sample table entry */
|
|
wave = atom_wave_new ();
|
|
|
|
/* Prepend Terminator atom to the WAVE list first, so it ends up last */
|
|
if (terminator) {
|
|
ext_atom = (Atom *) atom_data_new (FOURCC_null);
|
|
wave->extension_atoms =
|
|
atom_info_list_prepend_atom (wave->extension_atoms, (Atom *) ext_atom,
|
|
(AtomCopyDataFunc) atom_data_copy_data, (AtomFreeFunc) atom_data_free);
|
|
}
|
|
|
|
/* Add supplied atoms to WAVE */
|
|
if (atom2)
|
|
wave->extension_atoms = g_list_prepend (wave->extension_atoms, atom2);
|
|
if (atom1)
|
|
wave->extension_atoms = g_list_prepend (wave->extension_atoms, atom1);
|
|
|
|
/* Add FRMA to the WAVE */
|
|
frma = atom_frma_new ();
|
|
frma->media_type = fourcc;
|
|
|
|
wave->extension_atoms =
|
|
atom_info_list_prepend_atom (wave->extension_atoms, (Atom *) frma,
|
|
(AtomCopyDataFunc) atom_frma_copy_data, (AtomFreeFunc) atom_frma_free);
|
|
|
|
return build_atom_info_wrapper ((Atom *) wave, atom_wave_copy_data,
|
|
atom_wave_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_mov_aac_extension (AtomTRAK * trak, const GstBuffer * codec_data,
|
|
guint32 avg_bitrate, guint32 max_bitrate)
|
|
{
|
|
AtomInfo *esds, *mp4a;
|
|
GstBuffer *buf;
|
|
guint32 tmp = 0;
|
|
|
|
/* Add ESDS atom to WAVE */
|
|
esds = build_esds_extension (trak, ESDS_OBJECT_TYPE_MPEG4_P3,
|
|
ESDS_STREAM_TYPE_AUDIO, codec_data, avg_bitrate, max_bitrate);
|
|
|
|
/* Add MP4A atom to the WAVE:
|
|
* not really in spec, but makes offset based players happy */
|
|
buf = GST_BUFFER_NEW_READONLY (&tmp, 4);
|
|
mp4a = build_codec_data_extension (FOURCC_mp4a, buf);
|
|
gst_buffer_unref (buf);
|
|
|
|
return build_mov_wave_extension (FOURCC_mp4a, mp4a, esds, TRUE);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_mov_alac_extension (const GstBuffer * codec_data)
|
|
{
|
|
AtomInfo *alac;
|
|
|
|
alac = build_codec_data_extension (FOURCC_alac, codec_data);
|
|
|
|
return build_mov_wave_extension (FOURCC_alac, NULL, alac, TRUE);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_jp2x_extension (const GstBuffer * prefix)
|
|
{
|
|
AtomData *atom_data;
|
|
|
|
if (!prefix) {
|
|
return NULL;
|
|
}
|
|
|
|
atom_data = atom_data_new_from_gst_buffer (FOURCC_jp2x, prefix);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_jp2h_extension (gint width, gint height, const gchar * colorspace,
|
|
gint ncomp, const GValue * cmap_array, const GValue * cdef_array)
|
|
{
|
|
AtomData *atom_data;
|
|
GstBuffer *buf;
|
|
guint8 cenum;
|
|
gint i;
|
|
gint idhr_size = 22;
|
|
gint colr_size = 15;
|
|
gint cmap_size = 0, cdef_size = 0;
|
|
gint cmap_array_size = 0;
|
|
gint cdef_array_size = 0;
|
|
GstByteWriter writer;
|
|
|
|
g_return_val_if_fail (cmap_array == NULL ||
|
|
GST_VALUE_HOLDS_ARRAY (cmap_array), NULL);
|
|
g_return_val_if_fail (cdef_array == NULL ||
|
|
GST_VALUE_HOLDS_ARRAY (cdef_array), NULL);
|
|
|
|
if (g_str_equal (colorspace, "sRGB")) {
|
|
cenum = 0x10;
|
|
if (ncomp == 0)
|
|
ncomp = 3;
|
|
} else if (g_str_equal (colorspace, "GRAY")) {
|
|
cenum = 0x11;
|
|
if (ncomp == 0)
|
|
ncomp = 1;
|
|
} else if (g_str_equal (colorspace, "sYUV")) {
|
|
cenum = 0x12;
|
|
if (ncomp == 0)
|
|
ncomp = 3;
|
|
} else
|
|
return NULL;
|
|
|
|
if (cmap_array) {
|
|
cmap_array_size = gst_value_array_get_size (cmap_array);
|
|
cmap_size = 8 + cmap_array_size * 4;
|
|
}
|
|
if (cdef_array) {
|
|
cdef_array_size = gst_value_array_get_size (cdef_array);
|
|
cdef_size = 8 + 2 + cdef_array_size * 6;
|
|
}
|
|
|
|
gst_byte_writer_init_with_size (&writer,
|
|
idhr_size + colr_size + cmap_size + cdef_size, TRUE);
|
|
|
|
/* ihdr = image header box */
|
|
gst_byte_writer_put_uint32_be_unchecked (&writer, 22);
|
|
gst_byte_writer_put_uint32_le_unchecked (&writer, FOURCC_ihdr);
|
|
gst_byte_writer_put_uint32_be_unchecked (&writer, height);
|
|
gst_byte_writer_put_uint32_be_unchecked (&writer, width);
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, ncomp);
|
|
/* 8 bits per component, unsigned */
|
|
gst_byte_writer_put_uint8_unchecked (&writer, 0x7);
|
|
/* compression type; reserved */
|
|
gst_byte_writer_put_uint8_unchecked (&writer, 0x7);
|
|
/* colour space (un)known */
|
|
gst_byte_writer_put_uint8_unchecked (&writer, 0x0);
|
|
/* intellectual property right (box present) */
|
|
gst_byte_writer_put_uint8_unchecked (&writer, 0x0);
|
|
|
|
/* colour specification box */
|
|
gst_byte_writer_put_uint32_be_unchecked (&writer, 15);
|
|
gst_byte_writer_put_uint32_le_unchecked (&writer, FOURCC_colr);
|
|
|
|
/* specification method: enumerated */
|
|
gst_byte_writer_put_uint8_unchecked (&writer, 0x1);
|
|
/* precedence; reserved */
|
|
gst_byte_writer_put_uint8_unchecked (&writer, 0x0);
|
|
/* approximation; reserved */
|
|
gst_byte_writer_put_uint8_unchecked (&writer, 0x0);
|
|
/* enumerated colourspace */
|
|
gst_byte_writer_put_uint32_be_unchecked (&writer, cenum);
|
|
|
|
if (cmap_array) {
|
|
gst_byte_writer_put_uint32_be_unchecked (&writer, cmap_size);
|
|
gst_byte_writer_put_uint32_le_unchecked (&writer, FOURCC_cmap);
|
|
for (i = 0; i < cmap_array_size; i++) {
|
|
const GValue *item;
|
|
gint value;
|
|
guint16 cmp;
|
|
guint8 mtyp;
|
|
guint8 pcol;
|
|
item = gst_value_array_get_value (cmap_array, i);
|
|
value = g_value_get_int (item);
|
|
|
|
/* value is '(mtyp << 24) | (pcol << 16) | cmp' */
|
|
cmp = value & 0xFFFF;
|
|
mtyp = value >> 24;
|
|
pcol = (value >> 16) & 0xFF;
|
|
|
|
if (mtyp == 1)
|
|
GST_WARNING ("MTYP of cmap atom signals Pallete Mapping, but we don't "
|
|
"handle Pallete mapping atoms yet");
|
|
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, cmp);
|
|
gst_byte_writer_put_uint8_unchecked (&writer, mtyp);
|
|
gst_byte_writer_put_uint8_unchecked (&writer, pcol);
|
|
}
|
|
}
|
|
|
|
if (cdef_array) {
|
|
gst_byte_writer_put_uint32_be_unchecked (&writer, cdef_size);
|
|
gst_byte_writer_put_uint32_le_unchecked (&writer, FOURCC_cdef);
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, cdef_array_size);
|
|
for (i = 0; i < cdef_array_size; i++) {
|
|
const GValue *item;
|
|
gint value;
|
|
item = gst_value_array_get_value (cdef_array, i);
|
|
value = g_value_get_int (item);
|
|
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, i);
|
|
if (value > 0) {
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, 0);
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, value);
|
|
} else if (value < 0) {
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, -value);
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, 0); /* TODO what here? */
|
|
} else {
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, 1);
|
|
gst_byte_writer_put_uint16_be_unchecked (&writer, 0);
|
|
}
|
|
}
|
|
}
|
|
|
|
g_assert (gst_byte_writer_get_remaining (&writer) == 0);
|
|
buf = gst_byte_writer_reset_and_get_buffer (&writer);
|
|
|
|
atom_data = atom_data_new_from_gst_buffer (FOURCC_jp2h, buf);
|
|
gst_buffer_unref (buf);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_codec_data_extension (guint32 fourcc, const GstBuffer * codec_data)
|
|
{
|
|
AtomData *data;
|
|
AtomInfo *result = NULL;
|
|
|
|
if (codec_data) {
|
|
data = atom_data_new_from_gst_buffer (fourcc, codec_data);
|
|
result = build_atom_info_wrapper ((Atom *) data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
AtomInfo *
|
|
build_amr_extension (void)
|
|
{
|
|
guint8 ext[9];
|
|
GstBuffer *buf;
|
|
AtomInfo *res;
|
|
|
|
/* vendor */
|
|
GST_WRITE_UINT32_LE (ext, 0);
|
|
/* decoder version */
|
|
GST_WRITE_UINT8 (ext + 4, 0);
|
|
/* mode set (all modes) */
|
|
GST_WRITE_UINT16_BE (ext + 5, 0x81FF);
|
|
/* mode change period (no restriction) */
|
|
GST_WRITE_UINT8 (ext + 7, 0);
|
|
/* frames per sample */
|
|
GST_WRITE_UINT8 (ext + 8, 1);
|
|
|
|
buf = GST_BUFFER_NEW_READONLY (ext, sizeof (ext));
|
|
res = build_codec_data_extension (FOURCC_damr, buf);
|
|
gst_buffer_unref (buf);
|
|
return res;
|
|
}
|
|
|
|
AtomInfo *
|
|
build_h263_extension (void)
|
|
{
|
|
guint8 ext[7];
|
|
GstBuffer *buf;
|
|
AtomInfo *res;
|
|
|
|
/* vendor */
|
|
GST_WRITE_UINT32_LE (ext, 0);
|
|
/* decoder version */
|
|
GST_WRITE_UINT8 (ext + 4, 0);
|
|
/* level / profile */
|
|
/* FIXME ? maybe ? obtain somewhere; baseline for now */
|
|
GST_WRITE_UINT8 (ext + 5, 10);
|
|
GST_WRITE_UINT8 (ext + 6, 0);
|
|
|
|
buf = GST_BUFFER_NEW_READONLY (ext, sizeof (ext));
|
|
res = build_codec_data_extension (FOURCC_d263, buf);
|
|
gst_buffer_unref (buf);
|
|
return res;
|
|
}
|
|
|
|
AtomInfo *
|
|
build_gama_atom (gdouble gamma)
|
|
{
|
|
AtomInfo *res;
|
|
guint32 gamma_fp;
|
|
GstBuffer *buf;
|
|
|
|
/* convert to uint32 from fixed point */
|
|
gamma_fp = (guint32) 65536 *gamma;
|
|
|
|
gamma_fp = GUINT32_TO_BE (gamma_fp);
|
|
buf = GST_BUFFER_NEW_READONLY (&gamma_fp, 4);
|
|
res = build_codec_data_extension (FOURCC_gama, buf);
|
|
gst_buffer_unref (buf);
|
|
return res;
|
|
}
|
|
|
|
AtomInfo *
|
|
build_SMI_atom (const GstBuffer * seqh)
|
|
{
|
|
AtomInfo *res;
|
|
GstBuffer *buf;
|
|
gsize size;
|
|
guint8 *data;
|
|
|
|
/* the seqh plus its size and fourcc */
|
|
size = gst_buffer_get_size ((GstBuffer *) seqh);
|
|
data = g_malloc (size + 8);
|
|
|
|
GST_WRITE_UINT32_LE (data, FOURCC_SEQH);
|
|
GST_WRITE_UINT32_BE (data + 4, size + 8);
|
|
gst_buffer_extract ((GstBuffer *) seqh, 0, data + 8, size);
|
|
buf = gst_buffer_new_wrapped (data, size + 8);
|
|
res = build_codec_data_extension (FOURCC_SMI_, buf);
|
|
gst_buffer_unref (buf);
|
|
return res;
|
|
}
|
|
|
|
static AtomInfo *
|
|
build_ima_adpcm_atom (gint channels, gint rate, gint blocksize)
|
|
{
|
|
#define IMA_ADPCM_ATOM_SIZE 20
|
|
AtomData *atom_data;
|
|
guint8 *data;
|
|
guint32 fourcc;
|
|
gint samplesperblock;
|
|
gint bytespersec;
|
|
|
|
/* The FOURCC for WAV codecs in QT is 'ms' followed by the 16 bit wave codec
|
|
identifier. Note that the identifier here is big-endian, but when used
|
|
within the WAVE header (below), it's little endian. */
|
|
fourcc = MS_WAVE_FOURCC (0x11);
|
|
|
|
atom_data = atom_data_new (fourcc);
|
|
atom_data_alloc_mem (atom_data, IMA_ADPCM_ATOM_SIZE);
|
|
data = atom_data->data;
|
|
|
|
/* This atom's content is a WAVE header, including 2 bytes of extra data.
|
|
Note that all of this is little-endian, unlike most stuff in qt. */
|
|
/* 4 bytes header per channel (including 1 sample). Then 2 samples per byte
|
|
for the rest. Simplifies to this. */
|
|
samplesperblock = 2 * blocksize / channels - 7;
|
|
bytespersec = rate * blocksize / samplesperblock;
|
|
GST_WRITE_UINT16_LE (data, 0x11);
|
|
GST_WRITE_UINT16_LE (data + 2, channels);
|
|
GST_WRITE_UINT32_LE (data + 4, rate);
|
|
GST_WRITE_UINT32_LE (data + 8, bytespersec);
|
|
GST_WRITE_UINT16_LE (data + 12, blocksize);
|
|
GST_WRITE_UINT16_LE (data + 14, 4);
|
|
GST_WRITE_UINT16_LE (data + 16, 2); /* Two extra bytes */
|
|
GST_WRITE_UINT16_LE (data + 18, samplesperblock);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_ima_adpcm_extension (gint channels, gint rate, gint blocksize)
|
|
{
|
|
AtomWAVE *wave;
|
|
AtomFRMA *frma;
|
|
Atom *ext_atom;
|
|
|
|
/* Add WAVE atom */
|
|
wave = atom_wave_new ();
|
|
|
|
/* Prepend Terminator atom to the WAVE list first, so it ends up last */
|
|
ext_atom = (Atom *) atom_data_new (FOURCC_null);
|
|
wave->extension_atoms =
|
|
atom_info_list_prepend_atom (wave->extension_atoms, (Atom *) ext_atom,
|
|
(AtomCopyDataFunc) atom_data_copy_data, (AtomFreeFunc) atom_data_free);
|
|
|
|
/* Add wave ima adpcm atom to WAVE */
|
|
wave->extension_atoms = g_list_prepend (wave->extension_atoms,
|
|
build_ima_adpcm_atom (channels, rate, blocksize));
|
|
|
|
/* Add FRMA to the WAVE */
|
|
frma = atom_frma_new ();
|
|
frma->media_type = MS_WAVE_FOURCC (0x11);
|
|
|
|
wave->extension_atoms =
|
|
atom_info_list_prepend_atom (wave->extension_atoms, (Atom *) frma,
|
|
(AtomCopyDataFunc) atom_frma_copy_data, (AtomFreeFunc) atom_frma_free);
|
|
|
|
return build_atom_info_wrapper ((Atom *) wave, atom_wave_copy_data,
|
|
atom_wave_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_ac3_extension (guint8 fscod, guint8 bsid, guint8 bsmod, guint8 acmod,
|
|
guint8 lfe_on, guint8 bitrate_code)
|
|
{
|
|
AtomData *atom_data = atom_data_new (FOURCC_dac3);
|
|
guint8 *data;
|
|
|
|
atom_data_alloc_mem (atom_data, 3);
|
|
data = atom_data->data;
|
|
|
|
/* Bits from the spec
|
|
* fscod 2
|
|
* bsid 5
|
|
* bsmod 3
|
|
* acmod 3
|
|
* lfeon 1
|
|
* bit_rate_code 5
|
|
* reserved 5
|
|
*/
|
|
|
|
/* Some bit manipulation magic. Need bitwriter */
|
|
data[0] = (fscod << 6) | (bsid << 1) | ((bsmod >> 2) & 1);
|
|
data[1] =
|
|
((bsmod & 0x3) << 6) | (acmod << 3) | ((lfe_on & 1) << 2) | ((bitrate_code
|
|
>> 3) & 0x3);
|
|
data[2] = ((bitrate_code & 0x7) << 5);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_opus_extension (guint32 rate, guint8 channels, guint8 mapping_family,
|
|
guint8 stream_count, guint8 coupled_count, guint8 channel_mapping[256],
|
|
guint16 pre_skip, guint16 output_gain)
|
|
{
|
|
AtomData *atom_data;
|
|
guint8 *data_block;
|
|
GstByteWriter bw;
|
|
gboolean hdl = TRUE;
|
|
guint data_block_len;
|
|
|
|
gst_byte_writer_init (&bw);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, 0x00); /* version number */
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, channels);
|
|
hdl &= gst_byte_writer_put_uint16_le (&bw, pre_skip);
|
|
hdl &= gst_byte_writer_put_uint32_le (&bw, rate);
|
|
hdl &= gst_byte_writer_put_uint16_le (&bw, output_gain);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, mapping_family);
|
|
if (mapping_family > 0) {
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, stream_count);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, coupled_count);
|
|
hdl &= gst_byte_writer_put_data (&bw, channel_mapping, channels);
|
|
}
|
|
|
|
if (!hdl) {
|
|
GST_WARNING ("Error creating header");
|
|
return NULL;
|
|
}
|
|
|
|
data_block_len = gst_byte_writer_get_size (&bw);
|
|
data_block = gst_byte_writer_reset_and_get_data (&bw);
|
|
atom_data = atom_data_new_from_data (FOURCC_dops, data_block, data_block_len);
|
|
g_free (data_block);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|
|
|
|
AtomInfo *
|
|
build_uuid_xmp_atom (GstBuffer * xmp_data)
|
|
{
|
|
AtomUUID *uuid;
|
|
gsize size;
|
|
static const guint8 xmp_uuid[] = { 0xBE, 0x7A, 0xCF, 0xCB,
|
|
0x97, 0xA9, 0x42, 0xE8,
|
|
0x9C, 0x71, 0x99, 0x94,
|
|
0x91, 0xE3, 0xAF, 0xAC
|
|
};
|
|
|
|
if (xmp_data == NULL)
|
|
return NULL;
|
|
|
|
uuid = atom_uuid_new ();
|
|
memcpy (uuid->uuid, xmp_uuid, 16);
|
|
|
|
size = gst_buffer_get_size (xmp_data);
|
|
uuid->data = g_malloc (size);
|
|
uuid->datalen = size;
|
|
gst_buffer_extract (xmp_data, 0, uuid->data, size);
|
|
|
|
return build_atom_info_wrapper ((Atom *) uuid, atom_uuid_copy_data,
|
|
atom_uuid_free);
|
|
}
|
|
|
|
/* https://www.webmproject.org/vp9/mp4/#vp-codec-configuration-box */
|
|
AtomInfo *
|
|
build_vpcC_extension (guint8 profile, guint8 level, guint8 bit_depth,
|
|
guint8 chroma_subsampling, gboolean video_full_range,
|
|
guint8 colour_primaries, guint8 transfer_characteristics,
|
|
guint8 matrix_coefficients)
|
|
{
|
|
AtomData *atom_data;
|
|
guint8 *data_block;
|
|
guint data_block_len;
|
|
GstByteWriter bw;
|
|
gboolean hdl = TRUE;
|
|
guint8 val = 0;
|
|
|
|
gst_byte_writer_init (&bw);
|
|
/* version, always 1 */
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, 1);
|
|
/* flags of 24 bits */
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, 0);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, 0);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, 0);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, profile);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, level);
|
|
val |= (bit_depth & 0xF) << 4;
|
|
val |= (chroma_subsampling & 0x3) << 1;
|
|
val |= !(!video_full_range);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, val);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, colour_primaries);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, transfer_characteristics);
|
|
hdl &= gst_byte_writer_put_uint8 (&bw, matrix_coefficients);
|
|
/* codec initialization data, currently unused */
|
|
hdl &= gst_byte_writer_put_uint16_le (&bw, 0);
|
|
|
|
if (!hdl) {
|
|
GST_WARNING ("error creating header");
|
|
return NULL;
|
|
}
|
|
|
|
data_block_len = gst_byte_writer_get_size (&bw);
|
|
data_block = gst_byte_writer_reset_and_get_data (&bw);
|
|
atom_data = atom_data_new_from_data (FOURCC_vpcC, data_block, data_block_len);
|
|
g_free (data_block);
|
|
|
|
return build_atom_info_wrapper ((Atom *) atom_data, atom_data_copy_data,
|
|
atom_data_free);
|
|
}
|