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162 lines
5.6 KiB
C
162 lines
5.6 KiB
C
/* Quicktime muxer plugin for GStreamer
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* Copyright (C) 2010 Thiago Santos <thiago.sousa.santos@collabora.co.uk>
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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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#ifndef __ATOMS_RECOVERY_H__
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#define __ATOMS_RECOVERY_H__
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#include <glib.h>
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#include <string.h>
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#include <stdio.h>
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#include <gst/gst.h>
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#include "atoms.h"
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/* Version to be incremented each time we decide
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* to change the file layout */
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#define ATOMS_RECOV_FILE_VERSION 1
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#define ATOMS_RECOV_QUARK (g_quark_from_string ("qtmux-atoms-recovery"))
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/* gerror error codes */
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#define ATOMS_RECOV_ERR_GENERIC 1
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#define ATOMS_RECOV_ERR_FILE 2
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#define ATOMS_RECOV_ERR_PARSING 3
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#define ATOMS_RECOV_ERR_VERSION 4
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/* this struct represents each buffer in a moov file, containing the info
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* that is placed in the stsd children atoms
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* Fields should be writen in BE order, and booleans should be writen as
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* 1byte with 0 for false, anything otherwise */
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#define TRAK_BUFFER_ENTRY_INFO_SIZE 34
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typedef struct
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{
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guint32 track_id;
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guint32 nsamples;
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guint32 delta;
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guint32 size;
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guint64 chunk_offset;
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guint64 pts_offset;
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gboolean sync;
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gboolean do_pts;
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} TrakBufferEntryInfo;
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typedef struct
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{
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guint32 trak_id;
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guint32 duration; /* duration in trak timescale */
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guint32 timescale; /* trak's timescale */
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guint64 file_offset;
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/* need for later updating duration */
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guint64 tkhd_file_offset;
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guint64 mdhd_file_offset;
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/* need these offsets to update size */
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guint32 trak_size;
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guint64 mdia_file_offset;
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guint32 mdia_size;
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guint64 minf_file_offset;
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guint32 minf_size;
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guint64 stbl_file_offset;
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guint32 stbl_size;
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guint64 post_stsd_offset;
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guint32 stsd_size;
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guint32 extra_atoms_size;
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guint32 extra_atoms_offset;
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/* for storing the samples info */
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AtomSTBL stbl;
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} TrakRecovData;
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typedef struct
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{
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FILE * file;
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gboolean rawfile;
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/* results from parsing the input file */
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guint64 data_size;
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guint32 mdat_header_size;
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guint mdat_start;
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guint64 mdat_size;
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} MdatRecovFile;
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typedef struct
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{
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FILE * file;
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guint32 timescale;
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guint32 mvhd_pos;
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guint32 mvhd_size;
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guint32 prefix_size; /* prefix + ftyp total size */
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gint num_traks;
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TrakRecovData *traks_rd;
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} MoovRecovFile;
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gboolean atoms_recov_write_trak_info (FILE * f, AtomTRAK * trak);
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gboolean atoms_recov_write_headers (FILE * f, AtomFTYP * ftyp,
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GstBuffer * prefix, AtomMOOV * moov,
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guint32 timescale,
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guint32 traks_number);
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gboolean atoms_recov_write_trak_samples (FILE * f, AtomTRAK * trak,
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guint32 nsamples, guint32 delta,
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guint32 size, guint64 chunk_offset,
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gboolean sync, gboolean do_pts,
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gint64 pts_offset);
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MdatRecovFile * mdat_recov_file_create (FILE * file, gboolean datafile,
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GError ** err);
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void mdat_recov_file_free (MdatRecovFile * mrf);
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MoovRecovFile * moov_recov_file_create (FILE * file, GError ** err);
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void moov_recov_file_free (MoovRecovFile * moovrf);
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gboolean moov_recov_parse_buffers (MoovRecovFile * moovrf,
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MdatRecovFile * mdatrf,
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GError ** err);
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gboolean moov_recov_write_file (MoovRecovFile * moovrf,
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MdatRecovFile * mdatrf, FILE * outf,
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GError ** err, GError ** warn);
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#endif /* __ATOMS_RECOVERY_H__ */
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