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827e401e3a
This collects the 'bitrate' and 'maximum-bitrate' tags on the corresponding pad and uses these to populate these fields in the ESDS where applicable. https://bugzilla.gnome.org/show_bug.cgi?id=623678
201 lines
6 KiB
C
201 lines
6 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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*
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, 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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#ifndef __GST_QT_MUX_H__
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#define __GST_QT_MUX_H__
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#include <gst/gst.h>
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#include <gst/base/gstcollectpads.h>
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#include "fourcc.h"
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#include "atoms.h"
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#include "atomsrecovery.h"
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#include "gstqtmuxmap.h"
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G_BEGIN_DECLS
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#define GST_TYPE_QT_MUX (gst_qt_mux_get_type())
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#define GST_QT_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_QT_MUX, GstQTMux))
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#define GST_QT_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_QT_MUX, GstQTMux))
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#define GST_IS_QT_MUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_QT_MUX))
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#define GST_IS_QT_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_QT_MUX))
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#define GST_QT_MUX_CAST(obj) ((GstQTMux*)(obj))
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typedef struct _GstQTMux GstQTMux;
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typedef struct _GstQTMuxClass GstQTMuxClass;
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typedef struct _GstQTPad GstQTPad;
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/*
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* GstQTPadPrepareBufferFunc
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*
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* Receives a buffer (takes ref) and returns a new buffer that should
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* replace the passed one.
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*
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* Useful for when the pad/datatype needs some manipulation before
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* being muxed. (Originally added for image/x-jpc support, for which buffers
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* need to be wrapped into a isom box)
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*/
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typedef GstBuffer * (*GstQTPadPrepareBufferFunc) (GstQTPad * pad,
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GstBuffer * buf, GstQTMux * qtmux);
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struct _GstQTPad
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{
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GstCollectData collect; /* we extend the CollectData */
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/* fourcc id of stream */
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guint32 fourcc;
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/* whether using format that have out of order buffers */
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gboolean is_out_of_order;
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/* whether upstream provides valid PTS data */
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gboolean have_dts;
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/* if not 0, track with constant sized samples, e.g. raw audio */
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guint sample_size;
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/* make sync table entry */
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gboolean sync;
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/* bitrates */
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guint32 avg_bitrate, max_bitrate;
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GstBuffer *last_buf;
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/* dts of last_buf */
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GstClockTime last_dts;
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/* store the first timestamp for comparing with other streams and
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* know if there are late streams */
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GstClockTime first_ts;
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/* all the atom and chunk book-keeping is delegated here
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* unowned/uncounted reference, parent MOOV owns */
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AtomTRAK *trak;
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/* if nothing is set, it won't be called */
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GstQTPadPrepareBufferFunc prepare_buf_func;
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};
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typedef enum _GstQTMuxState
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{
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GST_QT_MUX_STATE_NONE,
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GST_QT_MUX_STATE_STARTED,
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GST_QT_MUX_STATE_DATA,
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GST_QT_MUX_STATE_EOS
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} GstQTMuxState;
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struct _GstQTMux
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{
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GstElement element;
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GstPad *srcpad;
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GstCollectPads *collect;
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GSList *sinkpads;
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/* state */
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GstQTMuxState state;
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/* size of header (prefix, atoms (ftyp, mdat)) */
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guint64 header_size;
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/* accumulated size of raw media data (a priori not including mdat header) */
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guint64 mdat_size;
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/* position of mdat atom (for later updating) */
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guint64 mdat_pos;
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/* keep track of the largest chunk to fine-tune brands */
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GstClockTime longest_chunk;
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/* atom helper objects */
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AtomsContext *context;
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AtomFTYP *ftyp;
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AtomMOOV *moov;
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/* fast start */
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FILE *fast_start_file;
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/* moov recovery */
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FILE *moov_recov_file;
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/* properties */
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guint32 timescale;
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AtomsTreeFlavor flavor;
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gboolean fast_start;
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gboolean large_file;
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gboolean guess_pts;
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gchar *fast_start_file_path;
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gchar *moov_recov_file_path;
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/* for collect pads event handling function */
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GstPadEventFunction collect_event;
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/* for request pad naming */
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guint video_pads, audio_pads;
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};
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struct _GstQTMuxClass
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{
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GstElementClass parent_class;
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GstQTMuxFormat format;
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};
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/* type register helper struct */
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typedef struct _GstQTMuxClassParams
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{
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GstQTMuxFormatProp *prop;
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GstCaps *src_caps;
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GstCaps *video_sink_caps;
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GstCaps *audio_sink_caps;
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} GstQTMuxClassParams;
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#define GST_QT_MUX_PARAMS_QDATA g_quark_from_static_string("qt-mux-params")
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GType gst_qt_mux_get_type (void);
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gboolean gst_qt_mux_register (GstPlugin * plugin);
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/* FIXME: ideally classification tag should be added and
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* registered in gstreamer core gsttaglist
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*
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* this tag is a string in the format: entityfourcc://table_num/content
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* FIXME Shouldn't we add a field for 'language'?
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*/
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#define GST_TAG_3GP_CLASSIFICATION "classification"
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G_END_DECLS
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#endif /* __GST_QT_MUX_H__ */
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