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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 Libav.
00008  *
00009  * Libav 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  * Libav 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 Libav; 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 // avconv -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 
00042 typedef struct MOVIentry {
00043     uint64_t     pos;
00044     int64_t      dts;
00045     unsigned int size;
00046     unsigned int samplesInChunk;
00047     unsigned int entries;
00048     int          cts;
00049 #define MOV_SYNC_SAMPLE         0x0001
00050 #define MOV_PARTIAL_SYNC_SAMPLE 0x0002
00051     uint32_t     flags;
00052 } MOVIentry;
00053 
00054 typedef struct HintSample {
00055     uint8_t *data;
00056     int size;
00057     int sample_number;
00058     int offset;
00059     int own_data;
00060 } HintSample;
00061 
00062 typedef struct {
00063     int size;
00064     int len;
00065     HintSample *samples;
00066 } HintSampleQueue;
00067 
00068 typedef struct MOVIndex {
00069     int         mode;
00070     int         entry;
00071     unsigned    timescale;
00072     uint64_t    time;
00073     int64_t     trackDuration;
00074     long        sampleCount;
00075     long        sampleSize;
00076     int         hasKeyframes;
00077 #define MOV_TRACK_CTTS         0x0001
00078 #define MOV_TRACK_STPS         0x0002
00079     uint32_t    flags;
00080     int         language;
00081     int         trackID;
00082     int         tag; 
00083     AVCodecContext *enc;
00084 
00085     int         vosLen;
00086     uint8_t     *vosData;
00087     MOVIentry   *cluster;
00088     int         audio_vbr;
00089     int         height; 
00090     uint32_t    tref_tag;
00091     int         tref_id; 
00092 
00093     int         hint_track;   
00094     int         src_track;    
00095     AVFormatContext *rtp_ctx; 
00096     uint32_t    prev_rtp_ts;
00097     int64_t     cur_rtp_ts_unwrapped;
00098     uint32_t    max_packet_size;
00099 
00100     HintSampleQueue sample_queue;
00101 } MOVTrack;
00102 
00103 typedef struct MOVMuxContext {
00104     const AVClass *av_class;
00105     int     mode;
00106     int64_t time;
00107     int     nb_streams;
00108     int     chapter_track; 
00109     int64_t mdat_pos;
00110     uint64_t mdat_size;
00111     MOVTrack *tracks;
00112 
00113     int flags;
00114     int rtp_flags;
00115     int iods_skip;
00116     int iods_video_profile;
00117     int iods_audio_profile;
00118 } MOVMuxContext;
00119 
00120 #define FF_MOV_FLAG_RTP_HINT 1
00121 
00122 int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt);
00123 
00124 int ff_mov_init_hinting(AVFormatContext *s, int index, int src_index);
00125 int ff_mov_add_hinted_packet(AVFormatContext *s, AVPacket *pkt,
00126                              int track_index, int sample,
00127                              uint8_t *sample_data, int sample_size);
00128 void ff_mov_close_hinting(MOVTrack *track);
00129 
00130 #endif /* AVFORMAT_MOVENC_H */
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