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libavformat/movenc.h

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00001 /*
00002  * MOV, 3GP, MP4 muxer
00003  * Copyright (c) 2003 Thomas Raivio
00004  * Copyright (c) 2004 Gildas Bazin <gbazin at videolan dot org>
00005  * Copyright (c) 2009 Baptiste Coudurier <baptiste dot coudurier at gmail dot com>
00006  *
00007  * This file is part of FFmpeg.
00008  *
00009  * FFmpeg is free software; you can redistribute it and/or
00010  * modify it under the terms of the GNU Lesser General Public
00011  * License as published by the Free Software Foundation; either
00012  * version 2.1 of the License, or (at your option) any later version.
00013  *
00014  * FFmpeg is distributed in the hope that it will be useful,
00015  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00016  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00017  * Lesser General Public License for more details.
00018  *
00019  * You should have received a copy of the GNU Lesser General Public
00020  * License along with FFmpeg; if not, write to the Free Software
00021  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00022  */
00023 
00024 #ifndef AVFORMAT_MOVENC_H
00025 #define AVFORMAT_MOVENC_H
00026 
00027 #include "avformat.h"
00028 
00029 #define MOV_INDEX_CLUSTER_SIZE 16384
00030 #define MOV_TIMESCALE 1000
00031 
00032 #define RTP_MAX_PACKET_SIZE 1450
00033 
00034 #define MODE_MP4  0x01
00035 #define MODE_MOV  0x02
00036 #define MODE_3GP  0x04
00037 #define MODE_PSP  0x08 // example working PSP command line:
00038 // ffmpeg -i testinput.avi  -f psp -r 14.985 -s 320x240 -b 768 -ar 24000 -ab 32 M4V00001.MP4
00039 #define MODE_3G2  0x10
00040 #define MODE_IPOD 0x20
00041 #define MODE_ISM  0x40
00042 
00043 typedef struct MOVIentry {
00044     uint64_t     pos;
00045     int64_t      dts;
00046     unsigned int size;
00047     unsigned int samplesInChunk;
00048     unsigned int chunkNum;              
00049     unsigned int entries;
00050     int          cts;
00051 #define MOV_SYNC_SAMPLE         0x0001
00052 #define MOV_PARTIAL_SYNC_SAMPLE 0x0002
00053     uint32_t     flags;
00054 } MOVIentry;
00055 
00056 typedef struct HintSample {
00057     uint8_t *data;
00058     int size;
00059     int sample_number;
00060     int offset;
00061     int own_data;
00062 } HintSample;
00063 
00064 typedef struct {
00065     int size;
00066     int len;
00067     HintSample *samples;
00068 } HintSampleQueue;
00069 
00070 typedef struct {
00071     int64_t offset;
00072     int64_t time;
00073     int64_t duration;
00074     int64_t tfrf_offset;
00075 } MOVFragmentInfo;
00076 
00077 typedef struct MOVIndex {
00078     int         mode;
00079     int         entry;
00080     unsigned    timescale;
00081     uint64_t    time;
00082     int64_t     trackDuration;
00083     long        sampleCount;
00084     long        sampleSize;
00085     long        chunkCount;
00086     int         hasKeyframes;
00087 #define MOV_TRACK_CTTS         0x0001
00088 #define MOV_TRACK_STPS         0x0002
00089     uint32_t    flags;
00090     int         language;
00091     int         trackID;
00092     int         tag; 
00093     AVCodecContext *enc;
00094 
00095     int         vosLen;
00096     uint8_t     *vosData;
00097     MOVIentry   *cluster;
00098     int         audio_vbr;
00099     int         height; 
00100     uint32_t    tref_tag;
00101     int         tref_id; 
00102     int64_t     start_dts;
00103 
00104     int         hint_track;   
00105     int         src_track;    
00106     AVFormatContext *rtp_ctx; 
00107     uint32_t    prev_rtp_ts;
00108     int64_t     cur_rtp_ts_unwrapped;
00109     uint32_t    max_packet_size;
00110 
00111     int64_t     default_duration;
00112     uint32_t    default_sample_flags;
00113     uint32_t    default_size;
00114 
00115     HintSampleQueue sample_queue;
00116 
00117     AVIOContext *mdat_buf;
00118     int64_t     moof_size_offset;
00119     int64_t     data_offset;
00120     int64_t     frag_start;
00121     int64_t     tfrf_offset;
00122 
00123     int         nb_frag_info;
00124     MOVFragmentInfo *frag_info;
00125 } MOVTrack;
00126 
00127 typedef struct MOVMuxContext {
00128     const AVClass *av_class;
00129     int     mode;
00130     int64_t time;
00131     int     nb_streams;
00132     int     chapter_track; 
00133     int64_t mdat_pos;
00134     uint64_t mdat_size;
00135     MOVTrack *tracks;
00136 
00137     int flags;
00138     int rtp_flags;
00139     int reserved_moov_size;
00140     int64_t reserved_moov_pos;
00141 
00142     int iods_skip;
00143     int iods_video_profile;
00144     int iods_audio_profile;
00145 
00146     int fragments;
00147     int max_fragment_duration;
00148     int max_fragment_size;
00149     int ism_lookahead;
00150 } MOVMuxContext;
00151 
00152 #define FF_MOV_FLAG_RTP_HINT 1
00153 #define FF_MOV_FLAG_FRAGMENT 2
00154 #define FF_MOV_FLAG_EMPTY_MOOV 4
00155 #define FF_MOV_FLAG_FRAG_KEYFRAME 8
00156 #define FF_MOV_FLAG_SEPARATE_MOOF 16
00157 #define FF_MOV_FLAG_FRAG_CUSTOM 32
00158 
00159 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt);
00160 
00161 int ff_mov_init_hinting(AVFormatContext *s, int index, int src_index);
00162 int ff_mov_add_hinted_packet(AVFormatContext *s, AVPacket *pkt,
00163                              int track_index, int sample,
00164                              uint8_t *sample_data, int sample_size);
00165 void ff_mov_close_hinting(MOVTrack *track);
00166 
00167 #endif /* AVFORMAT_MOVENC_H */
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