FFmpeg
isom.c
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1 /*
2  * ISO Media common code
3  * Copyright (c) 2001 Fabrice Bellard
4  * Copyright (c) 2002 Francois Revol <revol@free.fr>
5  * Copyright (c) 2006 Baptiste Coudurier <baptiste.coudurier@free.fr>
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include "avformat.h"
25 #include "internal.h"
26 #include "isom.h"
27 #include "libavcodec/mpeg4audio.h"
28 #include "libavcodec/mpegaudiodata.h"
29 #include "libavutil/avstring.h"
30 #include "libavutil/intreadwrite.h"
31 
32 /* http://www.mp4ra.org */
33 /* ordered by muxing preference */
34 const AVCodecTag ff_mp4_obj_type[] = {
35  { AV_CODEC_ID_MOV_TEXT , 0x08 },
36  { AV_CODEC_ID_MPEG4 , 0x20 },
37  { AV_CODEC_ID_H264 , 0x21 },
38  { AV_CODEC_ID_HEVC , 0x23 },
39  { AV_CODEC_ID_AAC , 0x40 },
40  { AV_CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */
41  { AV_CODEC_ID_MPEG2VIDEO , 0x61 }, /* MPEG-2 Main */
42  { AV_CODEC_ID_MPEG2VIDEO , 0x60 }, /* MPEG-2 Simple */
43  { AV_CODEC_ID_MPEG2VIDEO , 0x62 }, /* MPEG-2 SNR */
44  { AV_CODEC_ID_MPEG2VIDEO , 0x63 }, /* MPEG-2 Spatial */
45  { AV_CODEC_ID_MPEG2VIDEO , 0x64 }, /* MPEG-2 High */
46  { AV_CODEC_ID_MPEG2VIDEO , 0x65 }, /* MPEG-2 422 */
47  { AV_CODEC_ID_AAC , 0x66 }, /* MPEG-2 AAC Main */
48  { AV_CODEC_ID_AAC , 0x67 }, /* MPEG-2 AAC Low */
49  { AV_CODEC_ID_AAC , 0x68 }, /* MPEG-2 AAC SSR */
50  { AV_CODEC_ID_MP3 , 0x69 }, /* 13818-3 */
51  { AV_CODEC_ID_MP2 , 0x69 }, /* 11172-3 */
52  { AV_CODEC_ID_MPEG1VIDEO , 0x6A }, /* 11172-2 */
53  { AV_CODEC_ID_MP3 , 0x6B }, /* 11172-3 */
54  { AV_CODEC_ID_MJPEG , 0x6C }, /* 10918-1 */
55  { AV_CODEC_ID_PNG , 0x6D },
56  { AV_CODEC_ID_JPEG2000 , 0x6E }, /* 15444-1 */
57  { AV_CODEC_ID_VC1 , 0xA3 },
58  { AV_CODEC_ID_DIRAC , 0xA4 },
59  { AV_CODEC_ID_AC3 , 0xA5 },
60  { AV_CODEC_ID_EAC3 , 0xA6 },
61  { AV_CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */
62  { AV_CODEC_ID_OPUS , 0xAD }, /* mp4ra.org */
63  { AV_CODEC_ID_VP9 , 0xB1 }, /* mp4ra.org */
64  { AV_CODEC_ID_FLAC , 0xC1 }, /* nonstandard, update when there is a standard value */
65  { AV_CODEC_ID_TSCC2 , 0xD0 }, /* nonstandard, camtasia uses it */
66  { AV_CODEC_ID_EVRC , 0xD1 }, /* nonstandard, pvAuthor uses it */
67  { AV_CODEC_ID_VORBIS , 0xDD }, /* nonstandard, gpac uses it */
68  { AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* nonstandard, see unsupported-embedded-subs-2.mp4 */
69  { AV_CODEC_ID_QCELP , 0xE1 },
70  { AV_CODEC_ID_MPEG4SYSTEMS, 0x01 },
71  { AV_CODEC_ID_MPEG4SYSTEMS, 0x02 },
72  { AV_CODEC_ID_NONE , 0 },
73 };
74 
75 const AVCodecTag ff_codec_movvideo_tags[] = {
76 /* { AV_CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
77 
78  { AV_CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* uncompressed RGB */
79  { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* uncompressed YUV422 */
80  { AV_CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* uncompressed 8-bit 4:2:2 */
81  { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2VUY but byte-swapped */
82 
83  { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
84  { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
85  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
86  { AV_CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
87  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
88  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
89  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
90  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
91  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
92  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '6', '4', 'a') },
93  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'b', 'g') }, /* BOXX */
94  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'r', 'g') },
95  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', 'x', 'y', 'v') },
96  { AV_CODEC_ID_RAWVIDEO, MKTAG('N', 'O', '1', '6') },
97  { AV_CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
98  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '2', '0') }, /* Radius DV YUV PAL */
99  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', '4', '1', '1') }, /* Radius DV YUV NTSC */
100 
101  { AV_CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') }, /* uncompressed 10-bit RGB */
102  { AV_CODEC_ID_R10K, MKTAG('R', '1', '0', 'g') }, /* uncompressed 10-bit RGB */
103  { AV_CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, /* uncompressed 10-bit RGB */
104  { AV_CODEC_ID_AVUI, MKTAG('A', 'V', 'U', 'I') }, /* AVID Uncompressed deinterleaved UYVY422 */
105  { AV_CODEC_ID_AVRP, MKTAG('A', 'V', 'r', 'p') }, /* Avid 1:1 10-bit RGB Packer */
106  { AV_CODEC_ID_AVRP, MKTAG('S', 'U', 'D', 'S') }, /* Avid DS Uncompressed */
107  { AV_CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, /* uncompressed 10-bit 4:2:2 */
108  { AV_CODEC_ID_V210, MKTAG('b', 'x', 'y', '2') }, /* BOXX 10-bit 4:2:2 */
109  { AV_CODEC_ID_V308, MKTAG('v', '3', '0', '8') }, /* uncompressed 8-bit 4:4:4 */
110  { AV_CODEC_ID_V408, MKTAG('v', '4', '0', '8') }, /* uncompressed 8-bit 4:4:4:4 */
111  { AV_CODEC_ID_V410, MKTAG('v', '4', '1', '0') }, /* uncompressed 10-bit 4:4:4 */
112  { AV_CODEC_ID_Y41P, MKTAG('Y', '4', '1', 'P') }, /* uncompressed 12-bit 4:1:1 */
113  { AV_CODEC_ID_YUV4, MKTAG('y', 'u', 'v', '4') }, /* libquicktime packed yuv420p */
114  { AV_CODEC_ID_TARGA_Y216, MKTAG('Y', '2', '1', '6') },
115 
116  { AV_CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
117  { AV_CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
118  { AV_CODEC_ID_AVRN , MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
119 /* { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
120  { AV_CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
121  { AV_CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
122 
123  { AV_CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
124  { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
125  { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
126  { AV_CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
127 
128  { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
129  { AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
130  { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
131  { AV_CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
132 
133  { AV_CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H.263 */
134  { AV_CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H.263 ?? works */
135 
136  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
137  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
138  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
139  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
140  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
141  { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
142  { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
143  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
144  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
145  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
146  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
147  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
148  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
149  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
150  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
151 
152  { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
153  { AV_CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
154  { AV_CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
155  { AV_CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
156  { AV_CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
157  { AV_CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
158  { AV_CODEC_ID_SGIRLE, MKTAG('r', 'l', 'e', '1') }, /* SGI RLE 8-bit */
159  { AV_CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') },
160  { AV_CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
161  { AV_CODEC_ID_CDTOONS, MKTAG('Q', 'k', 'B', 'k') }, /* CDToons */
162 
163  { AV_CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
164 
165  { AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') }, /* HEVC/H.265 which indicates parameter sets may be in ES */
166  { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') }, /* HEVC/H.265 which indicates parameter sets shall not be in ES */
167  { AV_CODEC_ID_HEVC, MKTAG('d', 'v', 'h', 'e') }, /* HEVC-based Dolby Vision derived from hev1 */
168  /* dvh1 is handled within mov.c */
169 
170  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
171  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '2') },
172  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') },
173  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '4') },
174  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra 50M 720p24/30/60 */
175  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra 50M 720p25/50 */
176  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra 50M 1080p25/50 */
177  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra 50M 1080p24/30/60 */
178  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra 50M 1080i50 */
179  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra 50M 1080i60 */
180  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */
181  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */
182  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */
183  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
184  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
185  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
186  { AV_CODEC_ID_H264, MKTAG('A', 'V', 'i', 'n') }, /* AVC-Intra with implicit SPS/PPS */
187  { AV_CODEC_ID_H264, MKTAG('a', 'i', 'v', 'x') }, /* XAVC 10-bit 4:2:2 */
188  { AV_CODEC_ID_H264, MKTAG('r', 'v', '6', '4') }, /* X-Com Radvision */
189  { AV_CODEC_ID_H264, MKTAG('x', 'a', 'l', 'g') }, /* XAVC-L HD422 produced by FCP */
190  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'l', 'g') }, /* Panasonic P2 AVC-LongG */
191  { AV_CODEC_ID_H264, MKTAG('d', 'v', 'a', '1') }, /* AVC-based Dolby Vision derived from avc1 */
192  { AV_CODEC_ID_H264, MKTAG('d', 'v', 'a', 'v') }, /* AVC-based Dolby Vision derived from avc3 */
193 
194  { AV_CODEC_ID_VP8, MKTAG('v', 'p', '0', '8') }, /* VP8 */
195  { AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') }, /* VP9 */
196  { AV_CODEC_ID_AV1, MKTAG('a', 'v', '0', '1') }, /* AV1 */
197 
198  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') },
199  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
200  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
201  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '1', 'v') }, /* CoreMedia CMVideoCodecType */
202  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
203  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG-2 HDV 720p30 */
204  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG-2 HDV 1080i60 */
205  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG-2 HDV 1080i50 */
206  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG-2 HDV 720p24 */
207  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG-2 HDV 720p25 */
208  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG-2 HDV 1080p24 */
209  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG-2 HDV 1080p25 */
210  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG-2 HDV 1080p30 */
211  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG-2 HDV 720p60 JVC */
212  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG-2 HDV 720p50 */
213  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG-2 IMX NTSC 525/60 50mb/s produced by FCP */
214  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG-2 IMX PAL 625/50 50mb/s produced by FCP */
215  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG-2 IMX NTSC 525/60 40mb/s produced by FCP */
216  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG-2 IMX PAL 625/50 40mb/s produced by FCP */
217  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG-2 IMX NTSC 525/60 30mb/s produced by FCP */
218  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG-2 IMX PAL 625/50 30mb/s produced by FCP */
219  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '1') }, /* XDCAM HD422 720p30 CBR */
220  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
221  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */
222  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
223  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
224  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
225  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
226  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
227  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
228  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
229  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
230  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
231  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
232  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
233  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
234  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
235  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
236  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
237  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
238  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
239  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
240  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
241  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
242  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
243  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
244  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */
245  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */
246  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
247  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '2', 'v') }, /* FCP5 */
248 
249  { AV_CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
250 
251  { AV_CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
252  { AV_CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
253  { AV_CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
254  { AV_CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') },
255  { AV_CODEC_ID_PNG, MKTAG('M', 'N', 'G', ' ') },
256 
257  { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
258  { AV_CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
259 
260  { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
261  { AV_CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
262  { AV_CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'h') }, /* AVID DNxHR */
263  { AV_CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
264  { AV_CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */
265  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
266  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },
267  { AV_CODEC_ID_SGI, MKTAG('s', 'g', 'i', ' ') }, /* SGI */
268  { AV_CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, /* DPX */
269  { AV_CODEC_ID_EXR, MKTAG('e', 'x', 'r', ' ') }, /* OpenEXR */
270 
271  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
272  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
273  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
274  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
275  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
276  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'x') }, /* Apple ProRes 4444 XQ */
277  { AV_CODEC_ID_FLIC, MKTAG('f', 'l', 'i', 'c') },
278 
279  { AV_CODEC_ID_AIC, MKTAG('i', 'c', 'o', 'd') },
280 
281  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', '1') },
282  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', '5') },
283  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'Y') },
284  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'A') },
285  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'M') },
286 
287  { AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', '3') },
288  { AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', 'I') },
289 
290  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'R', '0') },
291  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'R', 'A') },
292  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'R', 'G') },
293  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'Y', '2') },
294  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'Y', '4') },
295  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'R', 'G') },
296  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'R', 'A') },
297  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'G', '0') },
298  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '0') },
299  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '2') },
300  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '4') },
301  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', 'A') },
302  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'A') },
303  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'G') },
304 
305  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '0') },
306  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '1') },
307  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '2') },
308  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '3') },
309  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '4') },
310  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '5') },
311  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '6') },
312  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '7') },
313 
314  { AV_CODEC_ID_PIXLET, MKTAG('p', 'x', 'l', 't') },
315 
316  { AV_CODEC_ID_NOTCHLC, MKTAG('n', 'c', 'l', 'c') },
317 
318  { AV_CODEC_ID_NONE, 0 },
319 };
320 
321 const AVCodecTag ff_codec_movaudio_tags[] = {
322  { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
323  { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
324  { AV_CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
325  { AV_CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') },
326  { AV_CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') },
327  { AV_CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
328  { AV_CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
329  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'c') }, /* DTS formats prior to DTS-HD */
330  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'h') }, /* DTS-HD audio formats */
331  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'l') }, /* DTS-HD Lossless formats */
332  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'e') }, /* DTS Express */
333  { AV_CODEC_ID_DTS, MKTAG('D', 'T', 'S', ' ') }, /* non-standard */
334  { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F (only valid in ISOBMFF) */
335  { AV_CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
336  { AV_CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
337  { AV_CODEC_ID_GSM, MKTAG('a', 'g', 's', 'm') },
338  { AV_CODEC_ID_ILBC, MKTAG('i', 'l', 'b', 'c') },
339  { AV_CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') },
340  { AV_CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') },
341  { AV_CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') },
342  { AV_CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') },
343  { AV_CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
344  { AV_CODEC_ID_MP3, MKTAG('m', 'p', '3', ' ') }, /* vlc */
345  { AV_CODEC_ID_MP3, 0x6D730055 },
346  { AV_CODEC_ID_NELLYMOSER, MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */
347  { AV_CODEC_ID_NELLYMOSER, MKTAG('N', 'E', 'L', 'L') }, /* Perian */
348  { AV_CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') },
349  { AV_CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') },
350  { AV_CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') },
351  { AV_CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') },
352  { AV_CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') },
353  { AV_CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') },
354  { AV_CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
355  { AV_CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
356  { AV_CODEC_ID_PCM_S16BE, MKTAG('l', 'p', 'c', 'm') },
357  { AV_CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
358  { AV_CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
359  { AV_CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
360  { AV_CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
361  { AV_CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
362  { AV_CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') },
363  { AV_CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') },
364  { AV_CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') },
365  { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'p') },
366  { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'q') },
367  { AV_CODEC_ID_QCELP, MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
368  { AV_CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') },
369  { AV_CODEC_ID_QDMC, MKTAG('Q', 'D', 'M', 'C') },
370  { AV_CODEC_ID_SPEEX, MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
371  { AV_CODEC_ID_SPEEX, MKTAG('S', 'P', 'X', 'N') }, /* ZygoAudio (quality 10 mode) */
372  { AV_CODEC_ID_EVRC, MKTAG('s', 'e', 'v', 'c') }, /* 3GPP2 */
373  { AV_CODEC_ID_SMV, MKTAG('s', 's', 'm', 'v') }, /* 3GPP2 */
374  { AV_CODEC_ID_FLAC, MKTAG('f', 'L', 'a', 'C') }, /* nonstandard */
375  { AV_CODEC_ID_TRUEHD, MKTAG('m', 'l', 'p', 'a') }, /* mp4ra.org */
376  { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') }, /* mp4ra.org */
377  { AV_CODEC_ID_MPEGH_3D_AUDIO, MKTAG('m', 'h', 'm', '1') }, /* MPEG-H 3D Audio bitstream */
378  { AV_CODEC_ID_NONE, 0 },
379 };
380 
381 const AVCodecTag ff_codec_movsubtitle_tags[] = {
382  { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
383  { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
384  { AV_CODEC_ID_EIA_608, MKTAG('c', '6', '0', '8') },
385  { AV_CODEC_ID_NONE, 0 },
386 };
387 
388 const AVCodecTag ff_codec_movdata_tags[] = {
389  { AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') },
390  { AV_CODEC_ID_NONE, 0 },
391 };
392 
393 /* map numeric codes from mdhd atom to ISO 639 */
394 /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
395 /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
396 /* deprecated by putting the code as 3*5 bits ASCII */
397 static const char mov_mdhd_language_map[][4] = {
398  "eng", /* 0 English */
399  "fra", /* 1 French */
400  "ger", /* 2 German */
401  "ita", /* 3 Italian */
402  "dut", /* 4 Dutch */
403  "sve", /* 5 Swedish */
404  "spa", /* 6 Spanish */
405  "dan", /* 7 Danish */
406  "por", /* 8 Portuguese */
407  "nor", /* 9 Norwegian */
408  "heb", /* 10 Hebrew */
409  "jpn", /* 11 Japanese */
410  "ara", /* 12 Arabic */
411  "fin", /* 13 Finnish */
412  "gre", /* 14 Greek */
413  "ice", /* 15 Icelandic */
414  "mlt", /* 16 Maltese */
415  "tur", /* 17 Turkish */
416  "hr ", /* 18 Croatian */
417  "chi", /* 19 Traditional Chinese */
418  "urd", /* 20 Urdu */
419  "hin", /* 21 Hindi */
420  "tha", /* 22 Thai */
421  "kor", /* 23 Korean */
422  "lit", /* 24 Lithuanian */
423  "pol", /* 25 Polish */
424  "hun", /* 26 Hungarian */
425  "est", /* 27 Estonian */
426  "lav", /* 28 Latvian */
427  "", /* 29 Sami */
428  "fo ", /* 30 Faroese */
429  "", /* 31 Farsi */
430  "rus", /* 32 Russian */
431  "chi", /* 33 Simplified Chinese */
432  "", /* 34 Flemish */
433  "iri", /* 35 Irish */
434  "alb", /* 36 Albanian */
435  "ron", /* 37 Romanian */
436  "ces", /* 38 Czech */
437  "slk", /* 39 Slovak */
438  "slv", /* 40 Slovenian */
439  "yid", /* 41 Yiddish */
440  "sr ", /* 42 Serbian */
441  "mac", /* 43 Macedonian */
442  "bul", /* 44 Bulgarian */
443  "ukr", /* 45 Ukrainian */
444  "bel", /* 46 Belarusian */
445  "uzb", /* 47 Uzbek */
446  "kaz", /* 48 Kazakh */
447  "aze", /* 49 Azerbaijani */
448  "aze", /* 50 AzerbaijanAr */
449  "arm", /* 51 Armenian */
450  "geo", /* 52 Georgian */
451  "mol", /* 53 Moldavian */
452  "kir", /* 54 Kirghiz */
453  "tgk", /* 55 Tajiki */
454  "tuk", /* 56 Turkmen */
455  "mon", /* 57 Mongolian */
456  "", /* 58 MongolianCyr */
457  "pus", /* 59 Pashto */
458  "kur", /* 60 Kurdish */
459  "kas", /* 61 Kashmiri */
460  "snd", /* 62 Sindhi */
461  "tib", /* 63 Tibetan */
462  "nep", /* 64 Nepali */
463  "san", /* 65 Sanskrit */
464  "mar", /* 66 Marathi */
465  "ben", /* 67 Bengali */
466  "asm", /* 68 Assamese */
467  "guj", /* 69 Gujarati */
468  "pa ", /* 70 Punjabi */
469  "ori", /* 71 Oriya */
470  "mal", /* 72 Malayalam */
471  "kan", /* 73 Kannada */
472  "tam", /* 74 Tamil */
473  "tel", /* 75 Telugu */
474  "", /* 76 Sinhala */
475  "bur", /* 77 Burmese */
476  "khm", /* 78 Khmer */
477  "lao", /* 79 Lao */
478  "vie", /* 80 Vietnamese */
479  "ind", /* 81 Indonesian */
480  "tgl", /* 82 Tagalog */
481  "may", /* 83 MalayRoman */
482  "may", /* 84 MalayArabic */
483  "amh", /* 85 Amharic */
484  "tir", /* 86 Galla */
485  "orm", /* 87 Oromo */
486  "som", /* 88 Somali */
487  "swa", /* 89 Swahili */
488  "", /* 90 Kinyarwanda */
489  "run", /* 91 Rundi */
490  "", /* 92 Nyanja */
491  "mlg", /* 93 Malagasy */
492  "epo", /* 94 Esperanto */
493  "", /* 95 */
494  "", /* 96 */
495  "", /* 97 */
496  "", /* 98 */
497  "", /* 99 */
498  "", /* 100 */
499  "", /* 101 */
500  "", /* 102 */
501  "", /* 103 */
502  "", /* 104 */
503  "", /* 105 */
504  "", /* 106 */
505  "", /* 107 */
506  "", /* 108 */
507  "", /* 109 */
508  "", /* 110 */
509  "", /* 111 */
510  "", /* 112 */
511  "", /* 113 */
512  "", /* 114 */
513  "", /* 115 */
514  "", /* 116 */
515  "", /* 117 */
516  "", /* 118 */
517  "", /* 119 */
518  "", /* 120 */
519  "", /* 121 */
520  "", /* 122 */
521  "", /* 123 */
522  "", /* 124 */
523  "", /* 125 */
524  "", /* 126 */
525  "", /* 127 */
526  "wel", /* 128 Welsh */
527  "baq", /* 129 Basque */
528  "cat", /* 130 Catalan */
529  "lat", /* 131 Latin */
530  "que", /* 132 Quechua */
531  "grn", /* 133 Guarani */
532  "aym", /* 134 Aymara */
533  "tat", /* 135 Tatar */
534  "uig", /* 136 Uighur */
535  "dzo", /* 137 Dzongkha */
536  "jav", /* 138 JavaneseRom */
537 };
538 
539 int ff_mov_iso639_to_lang(const char lang[4], int mp4)
540 {
541  int i, code = 0;
542 
543  /* old way, only for QT? */
544  for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
545  if (!strcmp(lang, mov_mdhd_language_map[i]))
546  return i;
547  }
548  /* XXX:can we do that in mov too? */
549  if (!mp4)
550  return -1;
551  /* handle undefined as such */
552  if (lang[0] == '\0')
553  lang = "und";
554  /* 5 bits ASCII */
555  for (i = 0; i < 3; i++) {
556  uint8_t c = lang[i];
557  c -= 0x60;
558  if (c > 0x1f)
559  return -1;
560  code <<= 5;
561  code |= c;
562  }
563  return code;
564 }
565 
566 int ff_mov_lang_to_iso639(unsigned code, char to[4])
567 {
568  int i;
569  memset(to, 0, 4);
570  /* is it the mangled iso code? */
571  /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
572  if (code >= 0x400 && code != 0x7fff) {
573  for (i = 2; i >= 0; i--) {
574  to[i] = 0x60 + (code & 0x1f);
575  code >>= 5;
576  }
577  return 1;
578  }
579  /* old fashion apple lang code */
580  if (code >= FF_ARRAY_ELEMS(mov_mdhd_language_map))
581  return 0;
582  if (!mov_mdhd_language_map[code][0])
583  return 0;
584  memcpy(to, mov_mdhd_language_map[code], 4);
585  return 1;
586 }
587 
588 int ff_mp4_read_descr_len(AVIOContext *pb)
589 {
590  int len = 0;
591  int count = 4;
592  while (count--) {
593  int c = avio_r8(pb);
594  len = (len << 7) | (c & 0x7f);
595  if (!(c & 0x80))
596  break;
597  }
598  return len;
599 }
600 
601 int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
602 {
603  int len;
604  *tag = avio_r8(pb);
605  len = ff_mp4_read_descr_len(pb);
606  av_log(fc, AV_LOG_TRACE, "MPEG-4 description: tag=0x%02x len=%d\n", *tag, len);
607  return len;
608 }
609 
610 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
611 {
612  int flags;
613  if (es_id) *es_id = avio_rb16(pb);
614  else avio_rb16(pb);
615  flags = avio_r8(pb);
616  if (flags & 0x80) //streamDependenceFlag
617  avio_rb16(pb);
618  if (flags & 0x40) { //URL_Flag
619  int len = avio_r8(pb);
620  avio_skip(pb, len);
621  }
622  if (flags & 0x20) //OCRstreamFlag
623  avio_rb16(pb);
624 }
625 
626 static const AVCodecTag mp4_audio_types[] = {
627  { AV_CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
628  { AV_CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
629  { AV_CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
630  { AV_CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
631  { AV_CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
632  { AV_CODEC_ID_NONE, AOT_NULL },
633 };
634 
635 int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
636 {
637  enum AVCodecID codec_id;
638  unsigned v;
639  int len, tag;
640  int ret;
641  int object_type_id = avio_r8(pb);
642  avio_r8(pb); /* stream type */
643  avio_rb24(pb); /* buffer size db */
644 
645  v = avio_rb32(pb);
646 
647  // TODO: fix this with codecpar
648 #if FF_API_LAVF_AVCTX
649 FF_DISABLE_DEPRECATION_WARNINGS
650  if (v < INT32_MAX)
651  st->codec->rc_max_rate = v;
652 FF_ENABLE_DEPRECATION_WARNINGS
653 #endif
654 
655  st->codecpar->bit_rate = avio_rb32(pb); /* avg bitrate */
656 
657  codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
658  if (codec_id)
659  st->codecpar->codec_id = codec_id;
660  av_log(fc, AV_LOG_TRACE, "esds object type id 0x%02x\n", object_type_id);
661  len = ff_mp4_read_descr(fc, pb, &tag);
662  if (tag == MP4DecSpecificDescrTag) {
663  av_log(fc, AV_LOG_TRACE, "Specific MPEG-4 header len=%d\n", len);
664  /* As per 14496-3:2009 9.D.2.2, No decSpecificInfo is defined
665  for MPEG-1 Audio or MPEG-2 Audio; MPEG-2 AAC excluded. */
666  if (object_type_id == 0x69 || object_type_id == 0x6b)
667  return 0;
668  if (!len || (uint64_t)len > (1<<30))
669  return AVERROR_INVALIDDATA;
670  if ((ret = ff_get_extradata(fc, st->codecpar, pb, len)) < 0)
671  return ret;
672  if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
673  MPEG4AudioConfig cfg = {0};
674  ret = avpriv_mpeg4audio_get_config2(&cfg, st->codecpar->extradata,
675  st->codecpar->extradata_size, 1, fc);
676  if (ret < 0)
677  return ret;
678  st->codecpar->channels = cfg.channels;
679  if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
680  st->codecpar->sample_rate = avpriv_mpa_freq_tab[cfg.sampling_index];
681  else if (cfg.ext_sample_rate)
682  st->codecpar->sample_rate = cfg.ext_sample_rate;
683  else
684  st->codecpar->sample_rate = cfg.sample_rate;
685  av_log(fc, AV_LOG_TRACE, "mp4a config channels %d obj %d ext obj %d "
686  "sample rate %d ext sample rate %d\n", st->codecpar->channels,
687  cfg.object_type, cfg.ext_object_type,
688  cfg.sample_rate, cfg.ext_sample_rate);
689  if (!(st->codecpar->codec_id = ff_codec_get_id(mp4_audio_types,
690  cfg.object_type)))
691  st->codecpar->codec_id = AV_CODEC_ID_AAC;
692  }
693  }
694  return 0;
695 }
696 
697 typedef struct MovChannelLayout {
698  int64_t channel_layout;
699  uint32_t layout_tag;
700 } MovChannelLayout;
701 
702 static const MovChannelLayout mov_channel_layout[] = {
703  { AV_CH_LAYOUT_MONO, (100<<16) | 1}, // kCAFChannelLayoutTag_Mono
704  { AV_CH_LAYOUT_STEREO, (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo
705  { AV_CH_LAYOUT_STEREO, (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones
706  { AV_CH_LAYOUT_2_1, (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1
707  { AV_CH_LAYOUT_QUAD, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
708  { AV_CH_LAYOUT_2_2, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
709  { AV_CH_LAYOUT_QUAD, (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic
710  { AV_CH_LAYOUT_SURROUND, (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A
711  { AV_CH_LAYOUT_4POINT0, (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A
712  { AV_CH_LAYOUT_5POINT0_BACK, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
713  { AV_CH_LAYOUT_5POINT0, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
714  { AV_CH_LAYOUT_5POINT1_BACK, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
715  { AV_CH_LAYOUT_5POINT1, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
716  { AV_CH_LAYOUT_7POINT1, (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C
717  { AV_CH_LAYOUT_7POINT1_WIDE, (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A
718  { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV
719  { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY, (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4
720  { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY, (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5
721  { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
722  { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
723  { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10
724  { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY, (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11
725  { 0, 0},
726 };
727 #if 0
728 int ff_mov_read_chan(AVFormatContext *s, AVStream *st, int64_t size)
729 {
730  AVCodecContext *codec= st->codec;
731  uint32_t layout_tag;
732  AVIOContext *pb = s->pb;
733  const MovChannelLayout *layouts = mov_channel_layout;
734 
735  if (size < 12)
736  return AVERROR_INVALIDDATA;
737 
738  layout_tag = avio_rb32(pb);
739  size -= 4;
740  if (layout_tag == 0) { // kCAFChannelLayoutTag_UseChannelDescriptions
741  // Channel descriptions not implemented
742  av_log_ask_for_sample(s, "Unimplemented container channel layout.\n");
743  avio_skip(pb, size);
744  return 0;
745  }
746  if (layout_tag == 0x10000) { // kCAFChannelLayoutTag_UseChannelBitmap
747  codec->channel_layout = avio_rb32(pb);
748  size -= 4;
749  avio_skip(pb, size);
750  return 0;
751  }
752  while (layouts->channel_layout) {
753  if (layout_tag == layouts->layout_tag) {
754  codec->channel_layout = layouts->channel_layout;
755  break;
756  }
757  layouts++;
758  }
759  if (!codec->channel_layout)
760  av_log(s, AV_LOG_WARNING, "Unknown container channel layout.\n");
761  avio_skip(pb, size);
762 
763  return 0;
764 }
765 #endif
766 
767 void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
768 {
769  const MovChannelLayout *layouts;
770  uint32_t layout_tag = 0;
771 
772  for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)
773  if (channel_layout == layouts->channel_layout) {
774  layout_tag = layouts->layout_tag;
775  break;
776  }
777 
778  if (layout_tag) {
779  avio_wb32(pb, layout_tag); // mChannelLayoutTag
780  avio_wb32(pb, 0); // mChannelBitmap
781  } else {
782  avio_wb32(pb, 0x10000); // kCAFChannelLayoutTag_UseChannelBitmap
783  avio_wb32(pb, channel_layout);
784  }
785  avio_wb32(pb, 0); // mNumberChannelDescriptions
786 }
787 
788 const struct AVCodecTag *avformat_get_mov_video_tags(void)
789 {
790  return ff_codec_movvideo_tags;
791 }
792 
793 const struct AVCodecTag *avformat_get_mov_audio_tags(void)
794 {
795  return ff_codec_movaudio_tags;
796 }
AOT_PS
N Parametric Stereo.
Definition: mpeg4audio.h:115
AV_CODEC_ID_AMR_NB
Definition: codec_id.h:393
AV_CODEC_ID_PCM_S24BE
Definition: codec_id.h:315
ff_mov_iso639_to_lang
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
Definition: isom.c:539
mp4_audio_types
static const AVCodecTag mp4_audio_types[]
Definition: isom.c:626
AV_CODEC_ID_VP9
Definition: codec_id.h:217
AV_CH_LAYOUT_7POINT1
#define AV_CH_LAYOUT_7POINT1
Definition: channel_layout.h:112
AVIOContext
Bytestream IO Context.
Definition: avio.h:161
AVERROR_INVALIDDATA
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
AV_CODEC_ID_NONE
Definition: codec_id.h:47
AV_CODEC_ID_AMR_WB
Definition: codec_id.h:394
AV_CODEC_ID_DNXHD
Definition: codec_id.h:148
AV_CODEC_ID_PCM_S8
Definition: codec_id.h:306
ff_mp4_parse_es_descr
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
Definition: isom.c:610
AV_CODEC_ID_BIN_DATA
Definition: codec_id.h:550
ff_codec_get_id
enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
Definition: utils.c:3158
AOT_L1
Y Layer 1.
Definition: mpeg4audio.h:118
ret
ret
Definition: filter_design.txt:187
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:200
AV_CODEC_ID_PNG
Definition: codec_id.h:110
AV_CH_LAYOUT_SURROUND
#define AV_CH_LAYOUT_SURROUND
Definition: channel_layout.h:94
mov_channel_layout
static const MovChannelLayout mov_channel_layout[]
Definition: isom.c:702
AV_CODEC_ID_R210
Definition: codec_id.h:182
AV_CODEC_ID_VC1
Definition: codec_id.h:119
AV_CODEC_ID_PIXLET
Definition: codec_id.h:269
AVCodecParameters::codec_id
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: codec_par.h:60
AV_CODEC_ID_AVRP
Definition: codec_id.h:247
AV_CODEC_ID_FLAC
Definition: codec_id.h:423
AV_CODEC_ID_MP1
Definition: codec_id.h:453
AV_CODEC_ID_QTRLE
Definition: codec_id.h:104
AV_CH_LAYOUT_4POINT0
#define AV_CH_LAYOUT_4POINT0
Definition: channel_layout.h:96
AV_CODEC_ID_MAGICYUV
Definition: codec_id.h:265
AV_CODEC_ID_MPEG4
Definition: codec_id.h:61
avio_skip
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:341
AV_CODEC_ID_V410
Definition: codec_id.h:206
AV_CODEC_ID_PRORES
Definition: codec_id.h:197
AV_CODEC_ID_MP3ON4
Definition: codec_id.h:425
AV_CH_LAYOUT_STEREO
#define AV_CH_LAYOUT_STEREO
Definition: channel_layout.h:91
avio_rb16
unsigned int avio_rb16(AVIOContext *s)
Definition: aviobuf.c:775
AV_CODEC_ID_H264
Definition: codec_id.h:76
AV_CODEC_ID_EIA_608
Definition: codec_id.h:520
AV_CH_LAYOUT_5POINT0
#define AV_CH_LAYOUT_5POINT0
Definition: channel_layout.h:100
mpegaudiodata.h
mpeg audio layer common tables.
MovChannelLayout::layout_tag
uint32_t layout_tag
Definition: isom.c:699
AV_CODEC_ID_MACE6
Definition: codec_id.h:421
AV_CODEC_ID_ALAC
Definition: codec_id.h:427
AV_CODEC_ID_EXR
Definition: codec_id.h:229
AV_CODEC_ID_SPEEX
Definition: codec_id.h:446
AV_CODEC_ID_Y41P
Definition: codec_id.h:246
AVFormatContext
Format I/O context.
Definition: avformat.h:1351
AV_CODEC_ID_DVD_SUBTITLE
Definition: codec_id.h:509
mov_mdhd_language_map
static const char mov_mdhd_language_map[][4]
Definition: isom.c:397
avformat_get_mov_audio_tags
const struct AVCodecTag * avformat_get_mov_audio_tags(void)
Definition: isom.c:793
AV_CODEC_ID_TARGA_Y216
Definition: codec_id.h:251
uint8_t
uint8_t
Definition: audio_convert.c:194
avpriv_mpeg4audio_get_config2
int avpriv_mpeg4audio_get_config2(MPEG4AudioConfig *c, const uint8_t *buf, int size, int sync_extension, void *logctx)
Parse MPEG-4 systems extradata from a raw buffer to retrieve audio configuration. ...
Definition: mpeg4audio.c:190
ff_codec_movvideo_tags
const AVCodecTag ff_codec_movvideo_tags[]
Definition: isom.c:75
AV_LOG_TRACE
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:220
AV_CODEC_ID_DIRAC
Definition: codec_id.h:165
avio_rb32
unsigned int avio_rb32(AVIOContext *s)
Definition: aviobuf.c:790
c
Undefined Behavior In the C some operations are like signed integer dereferencing freed accessing outside allocated Undefined Behavior must not occur in a C it is not safe even if the output of undefined operations is unused The unsafety may seem nit picking but Optimizing compilers have in fact optimized code on the assumption that no undefined Behavior occurs Optimizing code based on wrong assumptions can and has in some cases lead to effects beyond the output of computations The signed integer overflow problem in speed critical code Code which is highly optimized and works with signed integers sometimes has the problem that often the output of the computation does not c
Definition: undefined.txt:32
avpriv_mpa_freq_tab
const uint16_t avpriv_mpa_freq_tab[3]
Definition: mpegaudiodata.c:40
AV_CODEC_ID_AAC
Definition: codec_id.h:413
AV_CH_LOW_FREQUENCY
#define AV_CH_LOW_FREQUENCY
Definition: channel_layout.h:52
AV_CODEC_ID_ADPCM_IMA_QT
Definition: codec_id.h:341
tag
uint32_t tag
Definition: movenc.c:1532
AV_CODEC_ID_SMV
Definition: codec_id.h:484
AV_CODEC_ID_DXV
Definition: codec_id.h:240
size
ptrdiff_t size
Definition: opengl_enc.c:100
AV_CODEC_ID_MJPEG
Definition: codec_id.h:56
av_log
#define av_log(a,...)
Definition: tableprint_vlc.h:28
AV_CODEC_ID_QDM2
Definition: codec_id.h:430
to
const char * to
Definition: webvttdec.c:34
AVCodecParameters::bit_rate
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: codec_par.h:89
avformat_get_mov_video_tags
const struct AVCodecTag * avformat_get_mov_video_tags(void)
Definition: isom.c:788
AV_CODEC_ID_DVVIDEO
Definition: codec_id.h:73
AV_CODEC_ID_NELLYMOSER
Definition: codec_id.h:444
AV_CH_LAYOUT_5POINT1
#define AV_CH_LAYOUT_5POINT1
Definition: channel_layout.h:101
AV_CODEC_ID_TRUEHD
Definition: codec_id.h:455
AV_CODEC_ID_MPEG1VIDEO
Definition: codec_id.h:50
fc
#define fc(width, name, range_min, range_max)
Definition: cbs_av1.c:550
AV_CODEC_ID_SVQ3
Definition: codec_id.h:72
ff_codec_movdata_tags
const AVCodecTag ff_codec_movdata_tags[]
Definition: isom.c:388
AV_CODEC_ID_MJPEGB
Definition: codec_id.h:57
AV_CODEC_ID_PCM_ALAW
Definition: codec_id.h:309
ff_mp4_read_dec_config_descr
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
Definition: isom.c:635
AVCodecID
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: codec_id.h:46
AV_CODEC_ID_MACE3
Definition: codec_id.h:420
ff_mp4_read_descr_len
int ff_mp4_read_descr_len(AVIOContext *pb)
Definition: isom.c:588
AV_CODEC_ID_SHEERVIDEO
Definition: codec_id.h:266
MP4DecSpecificDescrTag
#define MP4DecSpecificDescrTag
Definition: isom.h:305
AV_CODEC_ID_VP3
Definition: codec_id.h:78
MovChannelLayout::channel_layout
int64_t channel_layout
Definition: isom.c:698
AV_CODEC_ID_DTS
Definition: codec_id.h:415
AV_CODEC_ID_MP3
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: codec_id.h:412
AV_CH_LAYOUT_QUAD
#define AV_CH_LAYOUT_QUAD
Definition: channel_layout.h:99
count
GLsizei count
Definition: opengl_enc.c:108
ff_mp4_obj_type
const AVCodecTag ff_mp4_obj_type[]
Definition: isom.c:34
ff_codec_movsubtitle_tags
const AVCodecTag ff_codec_movsubtitle_tags[]
Definition: isom.c:381
AVCodecContext::channel_layout
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:1237
AVCodecParameters::extradata_size
int extradata_size
Size of the extradata content in bytes.
Definition: codec_par.h:78
avio_r8
int avio_r8(AVIOContext *s)
Definition: aviobuf.c:628
AV_CODEC_ID_NOTCHLC
Definition: codec_id.h:297
AV_CH_LAYOUT_2_1
#define AV_CH_LAYOUT_2_1
Definition: channel_layout.h:93
AV_CH_LAYOUT_2_2
#define AV_CH_LAYOUT_2_2
Definition: channel_layout.h:98
AV_CODEC_ID_MPEGH_3D_AUDIO
Definition: codec_id.h:503
AV_CODEC_ID_AVUI
Definition: codec_id.h:249
avio_rb24
unsigned int avio_rb24(AVIOContext *s)
Definition: aviobuf.c:783
AV_CH_LAYOUT_STEREO_DOWNMIX
#define AV_CH_LAYOUT_STEREO_DOWNMIX
Definition: channel_layout.h:117
AV_CODEC_ID_MOV_TEXT
Definition: codec_id.h:514
AV_CODEC_ID_CDTOONS
Definition: codec_id.h:295
AV_CODEC_ID_CINEPAK
Definition: codec_id.h:92
AV_CODEC_ID_PCM_F64BE
Definition: codec_id.h:324
AV_CODEC_ID_SMC
Definition: codec_id.h:98
AV_CODEC_ID_H263
Definition: codec_id.h:53
s
#define s(width, name)
Definition: cbs_vp9.c:257
AV_CODEC_ID_V408
Definition: codec_id.h:253
AV_CODEC_ID_R10K
Definition: codec_id.h:194
AV_CODEC_ID_QDMC
Definition: codec_id.h:461
AV_CODEC_ID_OPUS
Definition: codec_id.h:471
codec_id
enum AVCodecID codec_id
Definition: vaapi_decode.c:369
AV_CODEC_ID_VP8
Definition: codec_id.h:189
AV_CH_LAYOUT_5POINT1_BACK
#define AV_CH_LAYOUT_5POINT1_BACK
Definition: channel_layout.h:103
AV_CODEC_ID_PCM_S16BE
Definition: codec_id.h:303
AV_CODEC_ID_DVAUDIO
Definition: codec_id.h:417
AV_CODEC_ID_SVQ1
Definition: codec_id.h:71
AV_CODEC_ID_MPEG2VIDEO
preferred ID for MPEG-1/2 video decoding
Definition: codec_id.h:51
AV_CODEC_ID_QCELP
Definition: codec_id.h:435
ff_mov_read_chan
int ff_mov_read_chan(AVFormatContext *s, AVIOContext *pb, AVStream *st, int64_t size)
Read &#39;chan&#39; tag from the input stream.
Definition: mov_chan.c:547
FF_ARRAY_ELEMS
#define FF_ARRAY_ELEMS(a)
Definition: sinewin_tablegen_template.c:38
AV_CODEC_ID_RPZA
Definition: codec_id.h:91
ff_mov_lang_to_iso639
int ff_mov_lang_to_iso639(unsigned code, char to[4])
Definition: isom.c:566
AVStream
Stream structure.
Definition: avformat.h:876
AV_CODEC_ID_PCM_U8
Definition: codec_id.h:307
AV_CODEC_ID_MPEG4SYSTEMS
FAKE codec to indicate a MPEG-4 Systems stream (only used by libavformat)
Definition: codec_id.h:557
AV_CODEC_ID_AV1
Definition: codec_id.h:275
ff_codec_movaudio_tags
const AVCodecTag ff_codec_movaudio_tags[]
Definition: isom.c:321
AOT_L2
Y Layer 2.
Definition: mpeg4audio.h:119
AVFormatContext::pb
AVIOContext * pb
I/O context.
Definition: avformat.h:1393
AVCodecContext
main external API structure.
Definition: avcodec.h:526
AV_CODEC_ID_AC3
Definition: codec_id.h:414
AV_CODEC_ID_PCM_MULAW
Definition: codec_id.h:308
AV_CODEC_ID_EAC3
Definition: codec_id.h:451
AV_CODEC_ID_PCM_F32BE
Definition: codec_id.h:322
AV_CODEC_ID_TARGA
Definition: codec_id.h:142
AV_CH_LAYOUT_5POINT0_BACK
#define AV_CH_LAYOUT_5POINT0_BACK
Definition: channel_layout.h:102
AV_CODEC_ID_TSCC2
Definition: codec_id.h:213
AV_CODEC_ID_PCM_S24LE
Definition: codec_id.h:314
AV_CODEC_ID_MP2
Definition: codec_id.h:411
AV_CODEC_ID_EVRC
Definition: codec_id.h:483
AV_CODEC_ID_PCM_F64LE
Definition: codec_id.h:325
layouts
enum MovChannelLayoutTag * layouts
Definition: mov_chan.c:434
AV_CODEC_ID_HEVC
Definition: codec_id.h:223
AV_CODEC_ID_DPX
Definition: codec_id.h:177
AV_CODEC_ID_V210
Definition: codec_id.h:176
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:560
code
and forward the test the status of outputs and forward it to the corresponding return FFERROR_NOT_READY If the filters stores internally one or a few frame for some it can consider them to be part of the FIFO and delay acknowledging a status change accordingly Example code
Definition: filter_design.txt:172
AV_CODEC_ID_HAP
Definition: codec_id.h:238
AV_CODEC_ID_CAVS
Definition: codec_id.h:136
AV_CH_LAYOUT_7POINT1_WIDE
#define AV_CH_LAYOUT_7POINT1_WIDE
Definition: channel_layout.h:113
AV_CODEC_ID_JPEG2000
Definition: codec_id.h:137
AV_CODEC_ID_TIFF
Definition: codec_id.h:145
AV_CODEC_ID_AVRN
Definition: codec_id.h:255
AV_CODEC_ID_QDRAW
Definition: codec_id.h:107
AV_CODEC_ID_PCM_F32LE
Definition: codec_id.h:323
AVCodecParameters::sample_rate
int sample_rate
Audio only.
Definition: codec_par.h:170
ff_mov_write_chan
void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
Definition: isom.c:767
avformat.h
Main libavformat public API header.
ff_mp4_read_descr
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
Definition: isom.c:601
FF_DISABLE_DEPRECATION_WARNINGS
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
AV_CODEC_ID_V308
Definition: codec_id.h:252
ff_get_extradata
int ff_get_extradata(AVFormatContext *s, AVCodecParameters *par, AVIOContext *pb, int size)
Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end which is always set to 0 and f...
Definition: utils.c:3339
AV_CODEC_ID_PCM_S16LE
Definition: codec_id.h:302
AV_CODEC_ID_SGIRLE
Definition: codec_id.h:232
AV_CODEC_ID_8BPS
Definition: codec_id.h:97
AOT_ALS
Y Audio LosslesS.
Definition: mpeg4audio.h:122
AV_CODEC_ID_MSMPEG4V3
Definition: codec_id.h:65
FF_ENABLE_DEPRECATION_WARNINGS
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
AOT_L3
Y Layer 3.
Definition: mpeg4audio.h:120
AV_CODEC_ID_GSM
as in Berlin toast format
Definition: codec_id.h:429
len
int len
Definition: vorbis_enc_data.h:452
AV_CODEC_ID_YUV4
Definition: codec_id.h:254
AV_CODEC_ID_MP4ALS
Definition: codec_id.h:456
AV_CODEC_ID_FLIC
Definition: codec_id.h:99
AVCodecParameters::extradata
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: codec_par.h:74
AVCodecParameters::channels
int channels
Audio only.
Definition: codec_par.h:166
avio_wb32
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:387
AV_CODEC_ID_PCM_S32LE
Definition: codec_id.h:310
AVStream::codecpar
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:1023
AV_CODEC_ID_GIF
Definition: codec_id.h:146
AV_CODEC_ID_RAWVIDEO
Definition: codec_id.h:62
AV_CODEC_ID_AIC
Definition: codec_id.h:218
AV_CODEC_ID_ILBC
Definition: codec_id.h:470
AV_CH_LAYOUT_MONO
#define AV_CH_LAYOUT_MONO
Definition: channel_layout.h:90
MKTAG
#define MKTAG(a, b, c, d)
Definition: common.h:406
AV_CODEC_ID_MSRLE
Definition: codec_id.h:94
AV_CODEC_ID_VORBIS
Definition: codec_id.h:416
i
int i
Definition: input.c:407
AV_CODEC_ID_PCM_S32BE
Definition: codec_id.h:311
AV_CODEC_ID_SGI
Definition: codec_id.h:150
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