FFmpeg
isom.c
Go to the documentation of this file.
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"
29 #include "libavutil/avstring.h"
30 #include "libavutil/intreadwrite.h"
31 
32 /* http://www.mp4ra.org */
33 /* ordered by muxing preference */
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 
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 
162  { AV_CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
163 
164  { AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') }, /* HEVC/H.265 which indicates parameter sets may be in ES */
165  { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') }, /* HEVC/H.265 which indicates parameter sets shall not be in ES */
166  { AV_CODEC_ID_HEVC, MKTAG('d', 'v', 'h', 'e') }, /* HEVC-based Dolby Vision derived from hev1 */
167  /* dvh1 is handled within mov.c */
168 
169  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
170  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '2') },
171  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') },
172  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '4') },
173  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra 50M 720p24/30/60 */
174  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra 50M 720p25/50 */
175  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra 50M 1080p25/50 */
176  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra 50M 1080p24/30/60 */
177  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra 50M 1080i50 */
178  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra 50M 1080i60 */
179  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */
180  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */
181  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */
182  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
183  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
184  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
185  { AV_CODEC_ID_H264, MKTAG('A', 'V', 'i', 'n') }, /* AVC-Intra with implicit SPS/PPS */
186  { AV_CODEC_ID_H264, MKTAG('a', 'i', 'v', 'x') }, /* XAVC 10-bit 4:2:2 */
187  { AV_CODEC_ID_H264, MKTAG('r', 'v', '6', '4') }, /* X-Com Radvision */
188  { AV_CODEC_ID_H264, MKTAG('x', 'a', 'l', 'g') }, /* XAVC-L HD422 produced by FCP */
189  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'l', 'g') }, /* Panasonic P2 AVC-LongG */
190  { AV_CODEC_ID_H264, MKTAG('d', 'v', 'a', '1') }, /* AVC-based Dolby Vision derived from avc1 */
191  { AV_CODEC_ID_H264, MKTAG('d', 'v', 'a', 'v') }, /* AVC-based Dolby Vision derived from avc3 */
192 
193  { AV_CODEC_ID_VP8, MKTAG('v', 'p', '0', '8') }, /* VP8 */
194  { AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') }, /* VP9 */
195  { AV_CODEC_ID_AV1, MKTAG('a', 'v', '0', '1') }, /* AV1 */
196 
197  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', ' ') },
198  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
199  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
200  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '1', 'v') }, /* CoreMedia CMVideoCodecType */
201  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
202  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG-2 HDV 720p30 */
203  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG-2 HDV 1080i60 */
204  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG-2 HDV 1080i50 */
205  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG-2 HDV 720p24 */
206  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG-2 HDV 720p25 */
207  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG-2 HDV 1080p24 */
208  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG-2 HDV 1080p25 */
209  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG-2 HDV 1080p30 */
210  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG-2 HDV 720p60 JVC */
211  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG-2 HDV 720p50 */
212  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG-2 IMX NTSC 525/60 50mb/s produced by FCP */
213  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG-2 IMX PAL 625/50 50mb/s produced by FCP */
214  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG-2 IMX NTSC 525/60 40mb/s produced by FCP */
215  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG-2 IMX PAL 625/50 40mb/s produced by FCP */
216  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG-2 IMX NTSC 525/60 30mb/s produced by FCP */
217  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG-2 IMX PAL 625/50 30mb/s produced by FCP */
218  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '1') }, /* XDCAM HD422 720p30 CBR */
219  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
220  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */
221  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
222  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
223  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
224  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
225  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
226  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
227  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
228  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
229  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
230  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
231  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
232  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
233  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
234  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
235  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
236  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
237  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
238  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
239  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
240  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
241  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
242  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
243  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */
244  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */
245  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
246  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '2', 'v') }, /* FCP5 */
247 
248  { AV_CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
249 
250  { AV_CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
251  { AV_CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
252  { AV_CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
253  { AV_CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') },
254  { AV_CODEC_ID_PNG, MKTAG('M', 'N', 'G', ' ') },
255 
256  { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
257  { AV_CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
258 
259  { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
260  { AV_CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
261  { AV_CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'h') }, /* AVID DNxHR */
262  { AV_CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
263  { AV_CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */
264  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
265  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },
266  { AV_CODEC_ID_SGI, MKTAG('s', 'g', 'i', ' ') }, /* SGI */
267  { AV_CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, /* DPX */
268  { AV_CODEC_ID_EXR, MKTAG('e', 'x', 'r', ' ') }, /* OpenEXR */
269 
270  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
271  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
272  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
273  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
274  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
275  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'x') }, /* Apple ProRes 4444 XQ */
276  { AV_CODEC_ID_FLIC, MKTAG('f', 'l', 'i', 'c') },
277 
278  { AV_CODEC_ID_AIC, MKTAG('i', 'c', 'o', 'd') },
279 
280  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', '1') },
281  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', '5') },
282  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'Y') },
283  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'A') },
284  { AV_CODEC_ID_HAP, MKTAG('H', 'a', 'p', 'M') },
285 
286  { AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', '3') },
287  { AV_CODEC_ID_DXV, MKTAG('D', 'X', 'D', 'I') },
288 
289  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'R', '0') },
290  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'R', 'A') },
291  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'R', 'G') },
292  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'Y', '2') },
293  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '0', 'Y', '4') },
294  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'R', 'G') },
295  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'R', 'A') },
296  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'G', '0') },
297  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '0') },
298  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '2') },
299  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', '4') },
300  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '8', 'Y', 'A') },
301  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'A') },
302  { AV_CODEC_ID_MAGICYUV, MKTAG('M', '2', 'R', 'G') },
303 
304  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '0') },
305  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '1') },
306  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '2') },
307  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '3') },
308  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '4') },
309  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '5') },
310  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '6') },
311  { AV_CODEC_ID_SHEERVIDEO, MKTAG('S', 'h', 'r', '7') },
312 
313  { AV_CODEC_ID_PIXLET, MKTAG('p', 'x', 'l', 't') },
314 
315  { AV_CODEC_ID_NONE, 0 },
316 };
317 
319  { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
320  { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
321  { AV_CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
322  { AV_CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') },
323  { AV_CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') },
324  { AV_CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
325  { AV_CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
326  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'c') }, /* DTS formats prior to DTS-HD */
327  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'h') }, /* DTS-HD audio formats */
328  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'l') }, /* DTS-HD Lossless formats */
329  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'e') }, /* DTS Express */
330  { AV_CODEC_ID_DTS, MKTAG('D', 'T', 'S', ' ') }, /* non-standard */
331  { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F (only valid in ISOBMFF) */
332  { AV_CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
333  { AV_CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
334  { AV_CODEC_ID_GSM, MKTAG('a', 'g', 's', 'm') },
335  { AV_CODEC_ID_ILBC, MKTAG('i', 'l', 'b', 'c') },
336  { AV_CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') },
337  { AV_CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') },
338  { AV_CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') },
339  { AV_CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') },
340  { AV_CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
341  { AV_CODEC_ID_MP3, MKTAG('m', 'p', '3', ' ') }, /* vlc */
342  { AV_CODEC_ID_MP3, 0x6D730055 },
343  { AV_CODEC_ID_NELLYMOSER, MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */
344  { AV_CODEC_ID_NELLYMOSER, MKTAG('N', 'E', 'L', 'L') }, /* Perian */
345  { AV_CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') },
346  { AV_CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') },
347  { AV_CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') },
348  { AV_CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') },
349  { AV_CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') },
350  { AV_CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') },
351  { AV_CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
352  { AV_CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
353  { AV_CODEC_ID_PCM_S16BE, MKTAG('l', 'p', 'c', 'm') },
354  { AV_CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
355  { AV_CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
356  { AV_CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
357  { AV_CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
358  { AV_CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
359  { AV_CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') },
360  { AV_CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') },
361  { AV_CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') },
362  { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'p') },
363  { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'q') },
364  { AV_CODEC_ID_QCELP, MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
365  { AV_CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') },
366  { AV_CODEC_ID_QDMC, MKTAG('Q', 'D', 'M', 'C') },
367  { AV_CODEC_ID_SPEEX, MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
368  { AV_CODEC_ID_SPEEX, MKTAG('S', 'P', 'X', 'N') }, /* ZygoAudio (quality 10 mode) */
369  { AV_CODEC_ID_EVRC, MKTAG('s', 'e', 'v', 'c') }, /* 3GPP2 */
370  { AV_CODEC_ID_SMV, MKTAG('s', 's', 'm', 'v') }, /* 3GPP2 */
371  { AV_CODEC_ID_FLAC, MKTAG('f', 'L', 'a', 'C') }, /* nonstandard */
372  { AV_CODEC_ID_TRUEHD, MKTAG('m', 'l', 'p', 'a') }, /* mp4ra.org */
373  { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') }, /* mp4ra.org */
374  { AV_CODEC_ID_MPEGH_3D_AUDIO, MKTAG('m', 'h', 'm', '1') }, /* MPEG-H 3D Audio bitstream */
375  { AV_CODEC_ID_NONE, 0 },
376 };
377 
379  { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
380  { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
381  { AV_CODEC_ID_EIA_608, MKTAG('c', '6', '0', '8') },
382  { AV_CODEC_ID_NONE, 0 },
383 };
384 
386  { AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') },
387  { AV_CODEC_ID_NONE, 0 },
388 };
389 
390 /* map numeric codes from mdhd atom to ISO 639 */
391 /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
392 /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
393 /* deprecated by putting the code as 3*5 bits ASCII */
394 static const char mov_mdhd_language_map[][4] = {
395  /* 0-9 */
396  "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
397  "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
398  "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "",
399  "fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk",
400  "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
401  /*?*/
402  "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus",
403  "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
404  "pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao",
405  /* roman? arabic? */
406  "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
407  /*==rundi?*/
408  "", "run", "", "mlg", "epo", "", "", "", "", "",
409  /* 100 */
410  "", "", "", "", "", "", "", "", "", "",
411  "", "", "", "", "", "", "", "", "", "",
412  "", "", "", "", "", "", "", "", "wel", "baq",
413  "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
414 };
415 
416 int ff_mov_iso639_to_lang(const char lang[4], int mp4)
417 {
418  int i, code = 0;
419 
420  /* old way, only for QT? */
421  for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
422  if (!strcmp(lang, mov_mdhd_language_map[i]))
423  return i;
424  }
425  /* XXX:can we do that in mov too? */
426  if (!mp4)
427  return -1;
428  /* handle undefined as such */
429  if (lang[0] == '\0')
430  lang = "und";
431  /* 5 bits ASCII */
432  for (i = 0; i < 3; i++) {
433  uint8_t c = lang[i];
434  c -= 0x60;
435  if (c > 0x1f)
436  return -1;
437  code <<= 5;
438  code |= c;
439  }
440  return code;
441 }
442 
443 int ff_mov_lang_to_iso639(unsigned code, char to[4])
444 {
445  int i;
446  memset(to, 0, 4);
447  /* is it the mangled iso code? */
448  /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
449  if (code >= 0x400 && code != 0x7fff) {
450  for (i = 2; i >= 0; i--) {
451  to[i] = 0x60 + (code & 0x1f);
452  code >>= 5;
453  }
454  return 1;
455  }
456  /* old fashion apple lang code */
458  return 0;
459  if (!mov_mdhd_language_map[code][0])
460  return 0;
461  memcpy(to, mov_mdhd_language_map[code], 4);
462  return 1;
463 }
464 
466 {
467  int len = 0;
468  int count = 4;
469  while (count--) {
470  int c = avio_r8(pb);
471  len = (len << 7) | (c & 0x7f);
472  if (!(c & 0x80))
473  break;
474  }
475  return len;
476 }
477 
479 {
480  int len;
481  *tag = avio_r8(pb);
482  len = ff_mp4_read_descr_len(pb);
483  av_log(fc, AV_LOG_TRACE, "MPEG-4 description: tag=0x%02x len=%d\n", *tag, len);
484  return len;
485 }
486 
487 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
488 {
489  int flags;
490  if (es_id) *es_id = avio_rb16(pb);
491  else avio_rb16(pb);
492  flags = avio_r8(pb);
493  if (flags & 0x80) //streamDependenceFlag
494  avio_rb16(pb);
495  if (flags & 0x40) { //URL_Flag
496  int len = avio_r8(pb);
497  avio_skip(pb, len);
498  }
499  if (flags & 0x20) //OCRstreamFlag
500  avio_rb16(pb);
501 }
502 
503 static const AVCodecTag mp4_audio_types[] = {
504  { AV_CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
505  { AV_CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
506  { AV_CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
507  { AV_CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
508  { AV_CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
510 };
511 
513 {
514  enum AVCodecID codec_id;
515  unsigned v;
516  int len, tag;
517  int ret;
518  int object_type_id = avio_r8(pb);
519  avio_r8(pb); /* stream type */
520  avio_rb24(pb); /* buffer size db */
521 
522  v = avio_rb32(pb);
523 
524  // TODO: fix this with codecpar
525 #if FF_API_LAVF_AVCTX
527  if (v < INT32_MAX)
528  st->codec->rc_max_rate = v;
530 #endif
531 
532  st->codecpar->bit_rate = avio_rb32(pb); /* avg bitrate */
533 
534  codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
535  if (codec_id)
536  st->codecpar->codec_id = codec_id;
537  av_log(fc, AV_LOG_TRACE, "esds object type id 0x%02x\n", object_type_id);
538  len = ff_mp4_read_descr(fc, pb, &tag);
539  if (tag == MP4DecSpecificDescrTag) {
540  av_log(fc, AV_LOG_TRACE, "Specific MPEG-4 header len=%d\n", len);
541  /* As per 14496-3:2009 9.D.2.2, No decSpecificInfo is defined
542  for MPEG-1 Audio or MPEG-2 Audio; MPEG-2 AAC excluded. */
543  if (object_type_id == 0x69 || object_type_id == 0x6b)
544  return 0;
545  if (!len || (uint64_t)len > (1<<30))
546  return AVERROR_INVALIDDATA;
547  if ((ret = ff_get_extradata(fc, st->codecpar, pb, len)) < 0)
548  return ret;
549  if (st->codecpar->codec_id == AV_CODEC_ID_AAC) {
550  MPEG4AudioConfig cfg = {0};
552  st->codecpar->extradata_size, 1, fc);
553  if (ret < 0)
554  return ret;
555  st->codecpar->channels = cfg.channels;
556  if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
558  else if (cfg.ext_sample_rate)
560  else
561  st->codecpar->sample_rate = cfg.sample_rate;
562  av_log(fc, AV_LOG_TRACE, "mp4a config channels %d obj %d ext obj %d "
563  "sample rate %d ext sample rate %d\n", st->codecpar->channels,
564  cfg.object_type, cfg.ext_object_type,
565  cfg.sample_rate, cfg.ext_sample_rate);
566  if (!(st->codecpar->codec_id = ff_codec_get_id(mp4_audio_types,
567  cfg.object_type)))
569  }
570  }
571  return 0;
572 }
573 
574 typedef struct MovChannelLayout {
575  int64_t channel_layout;
576  uint32_t layout_tag;
578 
580  { AV_CH_LAYOUT_MONO, (100<<16) | 1}, // kCAFChannelLayoutTag_Mono
581  { AV_CH_LAYOUT_STEREO, (101<<16) | 2}, // kCAFChannelLayoutTag_Stereo
582  { AV_CH_LAYOUT_STEREO, (102<<16) | 2}, // kCAFChannelLayoutTag_StereoHeadphones
583  { AV_CH_LAYOUT_2_1, (131<<16) | 3}, // kCAFChannelLayoutTag_ITU_2_1
584  { AV_CH_LAYOUT_QUAD, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
585  { AV_CH_LAYOUT_2_2, (132<<16) | 4}, // kCAFChannelLayoutTag_ITU_2_2
586  { AV_CH_LAYOUT_QUAD, (108<<16) | 4}, // kCAFChannelLayoutTag_Quadraphonic
587  { AV_CH_LAYOUT_SURROUND, (113<<16) | 3}, // kCAFChannelLayoutTag_MPEG_3_0_A
588  { AV_CH_LAYOUT_4POINT0, (115<<16) | 4}, // kCAFChannelLayoutTag_MPEG_4_0_A
589  { AV_CH_LAYOUT_5POINT0_BACK, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
590  { AV_CH_LAYOUT_5POINT0, (117<<16) | 5}, // kCAFChannelLayoutTag_MPEG_5_0_A
591  { AV_CH_LAYOUT_5POINT1_BACK, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
592  { AV_CH_LAYOUT_5POINT1, (121<<16) | 6}, // kCAFChannelLayoutTag_MPEG_5_1_A
593  { AV_CH_LAYOUT_7POINT1, (128<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_C
594  { AV_CH_LAYOUT_7POINT1_WIDE, (126<<16) | 8}, // kCAFChannelLayoutTag_MPEG_7_1_A
595  { AV_CH_LAYOUT_5POINT1_BACK|AV_CH_LAYOUT_STEREO_DOWNMIX, (130<<16) | 8}, // kCAFChannelLayoutTag_SMPTE_DTV
596  { AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY, (133<<16) | 3}, // kCAFChannelLayoutTag_DVD_4
597  { AV_CH_LAYOUT_2_1|AV_CH_LOW_FREQUENCY, (134<<16) | 4}, // kCAFChannelLayoutTag_DVD_5
598  { AV_CH_LAYOUT_QUAD|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
599  { AV_CH_LAYOUT_2_2|AV_CH_LOW_FREQUENCY, (135<<16) | 4}, // kCAFChannelLayoutTag_DVD_6
600  { AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY, (136<<16) | 4}, // kCAFChannelLayoutTag_DVD_10
601  { AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY, (137<<16) | 5}, // kCAFChannelLayoutTag_DVD_11
602  { 0, 0},
603 };
604 #if 0
605 int ff_mov_read_chan(AVFormatContext *s, AVStream *st, int64_t size)
606 {
607  AVCodecContext *codec= st->codec;
608  uint32_t layout_tag;
609  AVIOContext *pb = s->pb;
611 
612  if (size < 12)
613  return AVERROR_INVALIDDATA;
614 
615  layout_tag = avio_rb32(pb);
616  size -= 4;
617  if (layout_tag == 0) { // kCAFChannelLayoutTag_UseChannelDescriptions
618  // Channel descriptions not implemented
619  av_log_ask_for_sample(s, "Unimplemented container channel layout.\n");
620  avio_skip(pb, size);
621  return 0;
622  }
623  if (layout_tag == 0x10000) { // kCAFChannelLayoutTag_UseChannelBitmap
624  codec->channel_layout = avio_rb32(pb);
625  size -= 4;
626  avio_skip(pb, size);
627  return 0;
628  }
629  while (layouts->channel_layout) {
630  if (layout_tag == layouts->layout_tag) {
631  codec->channel_layout = layouts->channel_layout;
632  break;
633  }
634  layouts++;
635  }
636  if (!codec->channel_layout)
637  av_log(s, AV_LOG_WARNING, "Unknown container channel layout.\n");
638  avio_skip(pb, size);
639 
640  return 0;
641 }
642 #endif
643 
645 {
646  const MovChannelLayout *layouts;
647  uint32_t layout_tag = 0;
648 
649  for (layouts = mov_channel_layout; layouts->channel_layout; layouts++)
650  if (channel_layout == layouts->channel_layout) {
651  layout_tag = layouts->layout_tag;
652  break;
653  }
654 
655  if (layout_tag) {
656  avio_wb32(pb, layout_tag); // mChannelLayoutTag
657  avio_wb32(pb, 0); // mChannelBitmap
658  } else {
659  avio_wb32(pb, 0x10000); // kCAFChannelLayoutTag_UseChannelBitmap
660  avio_wb32(pb, channel_layout);
661  }
662  avio_wb32(pb, 0); // mNumberChannelDescriptions
663 }
664 
666 {
667  return ff_codec_movvideo_tags;
668 }
669 
671 {
672  return ff_codec_movaudio_tags;
673 }
N Parametric Stereo.
Definition: mpeg4audio.h:115
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
Definition: isom.c:416
static const AVCodecTag mp4_audio_types[]
Definition: isom.c:503
#define AV_CH_LAYOUT_7POINT1
Bytestream IO Context.
Definition: avio.h:161
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
Definition: isom.c:487
enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
Definition: utils.c:3160
Y Layer 1.
Definition: mpeg4audio.h:118
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
#define AV_CH_LAYOUT_SURROUND
static const MovChannelLayout mov_channel_layout[]
Definition: isom.c:579
enum AVCodecID codec_id
Specific type of the encoded data (the codec used).
Definition: avcodec.h:3987
#define AV_CH_LAYOUT_4POINT0
int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: aviobuf.c:334
#define AV_CH_LAYOUT_STEREO
unsigned int avio_rb16(AVIOContext *s)
Definition: aviobuf.c:788
#define AV_CH_LAYOUT_5POINT0
mpeg audio layer common tables.
uint32_t layout_tag
Definition: isom.c:576
Format I/O context.
Definition: avformat.h:1357
static const char mov_mdhd_language_map[][4]
Definition: isom.c:394
const struct AVCodecTag * avformat_get_mov_audio_tags(void)
Definition: isom.c:670
uint8_t
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:177
const AVCodecTag ff_codec_movvideo_tags[]
Definition: isom.c:75
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:202
unsigned int avio_rb32(AVIOContext *s)
Definition: aviobuf.c:803
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
const uint16_t avpriv_mpa_freq_tab[3]
Definition: mpegaudiodata.c:40
#define AV_CH_LOW_FREQUENCY
uint32_t tag
Definition: movenc.c:1532
ptrdiff_t size
Definition: opengl_enc.c:100
#define av_log(a,...)
const char * to
Definition: webvttdec.c:34
int64_t bit_rate
The average bitrate of the encoded data (in bits per second).
Definition: avcodec.h:4016
const struct AVCodecTag * avformat_get_mov_video_tags(void)
Definition: isom.c:665
#define AV_CH_LAYOUT_5POINT1
#define fc(width, name, range_min, range_max)
Definition: cbs_av1.c:554
const AVCodecTag ff_codec_movdata_tags[]
Definition: isom.c:385
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
Definition: isom.c:512
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
int ff_mp4_read_descr_len(AVIOContext *pb)
Definition: isom.c:465
#define MP4DecSpecificDescrTag
Definition: isom.h:304
int64_t channel_layout
Definition: isom.c:575
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: avcodec.h:569
#define AV_CH_LAYOUT_QUAD
GLsizei count
Definition: opengl_enc.c:108
const AVCodecTag ff_mp4_obj_type[]
Definition: isom.c:34
const AVCodecTag ff_codec_movsubtitle_tags[]
Definition: isom.c:378
uint64_t channel_layout
Audio channel layout.
Definition: avcodec.h:2293
int extradata_size
Size of the extradata content in bytes.
Definition: avcodec.h:4005
int avio_r8(AVIOContext *s)
Definition: aviobuf.c:641
#define AV_CH_LAYOUT_2_1
#define AV_CH_LAYOUT_2_2
unsigned int avio_rb24(AVIOContext *s)
Definition: aviobuf.c:796
#define AV_CH_LAYOUT_STEREO_DOWNMIX
#define s(width, name)
Definition: cbs_vp9.c:257
enum AVCodecID codec_id
Definition: vaapi_decode.c:364
#define AV_CH_LAYOUT_5POINT1_BACK
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:220
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
#define FF_ARRAY_ELEMS(a)
int ff_mov_lang_to_iso639(unsigned code, char to[4])
Definition: isom.c:443
Stream structure.
Definition: avformat.h:880
FAKE codec to indicate a MPEG-4 Systems stream (only used by libavformat)
Definition: avcodec.h:712
const AVCodecTag ff_codec_movaudio_tags[]
Definition: isom.c:318
Y Layer 2.
Definition: mpeg4audio.h:119
AVIOContext * pb
I/O context.
Definition: avformat.h:1399
main external API structure.
Definition: avcodec.h:1582
#define AV_CH_LAYOUT_5POINT0_BACK
enum MovChannelLayoutTag * layouts
Definition: mov_chan.c:434
#define flags(name, subs,...)
Definition: cbs_av1.c:564
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
#define AV_CH_LAYOUT_7POINT1_WIDE
int sample_rate
Audio only.
Definition: avcodec.h:4097
void ff_mov_write_chan(AVIOContext *pb, int64_t channel_layout)
Definition: isom.c:644
Main libavformat public API header.
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
Definition: isom.c:478
#define FF_DISABLE_DEPRECATION_WARNINGS
Definition: internal.h:84
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:3341
Y Audio LosslesS.
Definition: mpeg4audio.h:122
#define FF_ENABLE_DEPRECATION_WARNINGS
Definition: internal.h:85
Y Layer 3.
Definition: mpeg4audio.h:120
as in Berlin toast format
Definition: avcodec.h:586
int len
uint8_t * extradata
Extra binary data needed for initializing the decoder, codec-dependent.
Definition: avcodec.h:4001
int channels
Audio only.
Definition: avcodec.h:4093
void avio_wb32(AVIOContext *s, unsigned int val)
Definition: aviobuf.c:380
AVCodecParameters * codecpar
Codec parameters associated with this stream.
Definition: avformat.h:1027
#define AV_CH_LAYOUT_MONO
#define MKTAG(a, b, c, d)
Definition: common.h:366