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 Libav.
8  *
9  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 //#define DEBUG
25 
26 #include "avformat.h"
27 #include "internal.h"
28 #include "isom.h"
29 #include "libavcodec/mpeg4audio.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_AAC , 0x40 },
39  { AV_CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */
40  { AV_CODEC_ID_MPEG2VIDEO , 0x61 }, /* MPEG2 Main */
41  { AV_CODEC_ID_MPEG2VIDEO , 0x60 }, /* MPEG2 Simple */
42  { AV_CODEC_ID_MPEG2VIDEO , 0x62 }, /* MPEG2 SNR */
43  { AV_CODEC_ID_MPEG2VIDEO , 0x63 }, /* MPEG2 Spatial */
44  { AV_CODEC_ID_MPEG2VIDEO , 0x64 }, /* MPEG2 High */
45  { AV_CODEC_ID_MPEG2VIDEO , 0x65 }, /* MPEG2 422 */
46  { AV_CODEC_ID_AAC , 0x66 }, /* MPEG2 AAC Main */
47  { AV_CODEC_ID_AAC , 0x67 }, /* MPEG2 AAC Low */
48  { AV_CODEC_ID_AAC , 0x68 }, /* MPEG2 AAC SSR */
49  { AV_CODEC_ID_MP3 , 0x69 }, /* 13818-3 */
50  { AV_CODEC_ID_MP2 , 0x69 }, /* 11172-3 */
51  { AV_CODEC_ID_MPEG1VIDEO , 0x6A }, /* 11172-2 */
52  { AV_CODEC_ID_MP3 , 0x6B }, /* 11172-3 */
53  { AV_CODEC_ID_MJPEG , 0x6C }, /* 10918-1 */
54  { AV_CODEC_ID_PNG , 0x6D },
55  { AV_CODEC_ID_JPEG2000 , 0x6E }, /* 15444-1 */
56  { AV_CODEC_ID_VC1 , 0xA3 },
57  { AV_CODEC_ID_DIRAC , 0xA4 },
58  { AV_CODEC_ID_AC3 , 0xA5 },
59  { AV_CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */
60  { AV_CODEC_ID_VORBIS , 0xDD }, /* non standard, gpac uses it */
61  { AV_CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
62  { AV_CODEC_ID_QCELP , 0xE1 },
63  { AV_CODEC_ID_MPEG4SYSTEMS, 0x01 },
64  { AV_CODEC_ID_MPEG4SYSTEMS, 0x02 },
65  { AV_CODEC_ID_NONE , 0 },
66 };
67 
69 /* { AV_CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
70 
71  { AV_CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
72  { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
73  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */
74  { AV_CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
75  { AV_CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */
76 
77  { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
78  { AV_CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
79  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
80  { AV_CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
81  { AV_CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
82  { AV_CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
83  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
84  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
85  { AV_CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
86  { AV_CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
87 
88  { AV_CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */
89  { AV_CODEC_ID_R10K, MKTAG('R', '1', '0', 'g') }, /* UNCOMPRESSED 10BIT RGB */
90  { AV_CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */
91  { AV_CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */
92  { AV_CODEC_ID_V410, MKTAG('v', '4', '1', '0') }, /* UNCOMPRESSED 10BIT 4:4:4 */
93 
94  { AV_CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
95  { AV_CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
96  { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
97 /* { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
98  { AV_CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
99  { AV_CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
100 
101  { AV_CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
102  { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
103  { AV_CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
104  { AV_CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
105 
106  { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
107  { AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
108  { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
109  { AV_CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
110 
111  { AV_CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
112  { AV_CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
113 
114  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
115  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
116  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
117  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
118  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
119  { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
120  { AV_CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
121  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
122  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
123  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
124  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
125  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
126  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
127  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
128  { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
129 
130  { AV_CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
131  { AV_CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
132  { AV_CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
133  { AV_CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
134  { AV_CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
135  { AV_CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
136  { AV_CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') },
137  { AV_CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
138 
139  { AV_CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
140 
141  { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
142  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra 50M 720p24/30/60 */
143  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra 50M 720p25/50 */
144  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra 50M 1080p25/50 */
145  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra 50M 1080p24/30/60 */
146  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra 50M 1080i50 */
147  { AV_CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra 50M 1080i60 */
148  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */
149  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */
150  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */
151  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
152  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
153  { AV_CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
154 
155  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
156  { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
157  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
158  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */
159  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */
160  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */
161  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG2 HDV 720p24 */
162  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */
163  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */
164  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */
165  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */
166  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG2 HDV 720p60 JVC */
167  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG2 HDV 720p50 */
168  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
169  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
170  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
171  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */
172  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
173  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
174  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
175  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */
176  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
177  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
178  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
179  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
180  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
181  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
182  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
183  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
184  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
185  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
186  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
187  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
188  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
189  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
190  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
191  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
192  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
193  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
194  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
195  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
196  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
197  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
198  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */
199  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */
200  { AV_CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
201 
202  { AV_CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
203 
204  { AV_CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
205  { AV_CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
206  { AV_CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
207  { AV_CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') },
208 
209  { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
210  { AV_CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
211 
212  { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
213  { AV_CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
214  { AV_CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
215  { AV_CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */
216  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
217  { AV_CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },
218  { AV_CODEC_ID_SGI, MKTAG('s', 'g', 'i', ' ') }, /* SGI */
219  { AV_CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, /* DPX */
220 
221  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
222  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
223  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
224  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
225  { AV_CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
226 
227  { AV_CODEC_ID_NONE, 0 },
228 };
229 
231  { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
232  { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
233  { AV_CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
234  { AV_CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') },
235  { AV_CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') },
236  { AV_CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
237  { AV_CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
238  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'c') }, /* DTS formats prior to DTS-HD */
239  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'h') }, /* DTS-HD audio formats */
240  { AV_CODEC_ID_DTS, MKTAG('d', 't', 's', 'l') }, /* DTS-HD Lossless formats */
241  { AV_CODEC_ID_DTS, MKTAG('D', 'T', 'S', ' ') }, /* non-standard */
242  { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F (only valid in ISOBMFF) */
243  { AV_CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
244  { AV_CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
245  { AV_CODEC_ID_GSM, MKTAG('a', 'g', 's', 'm') },
246  { AV_CODEC_ID_ILBC, MKTAG('i', 'l', 'b', 'c') },
247  { AV_CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') },
248  { AV_CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') },
249  { AV_CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') },
250  { AV_CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') },
251  { AV_CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
252  { AV_CODEC_ID_MP3, 0x6D730055 },
253  { AV_CODEC_ID_NELLYMOSER, MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */
254  { AV_CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') },
255  { AV_CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') },
256  { AV_CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') },
257  { AV_CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') },
258  { AV_CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') },
259  { AV_CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') },
260  { AV_CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
261  { AV_CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
262  { AV_CODEC_ID_PCM_S16BE, MKTAG('l', 'p', 'c', 'm') },
263  { AV_CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
264  { AV_CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
265  { AV_CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
266  { AV_CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
267  { AV_CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
268  { AV_CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') },
269  { AV_CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') },
270  { AV_CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') },
271  { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'p') },
272  { AV_CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'q') },
273  { AV_CODEC_ID_QCELP, MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
274  { AV_CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') },
275  { AV_CODEC_ID_QDMC, MKTAG('Q', 'D', 'M', 'C') },
276  { AV_CODEC_ID_SPEEX, MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
277  { AV_CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
278  { AV_CODEC_ID_NONE, 0 },
279 };
280 
282  { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
283  { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
284  { AV_CODEC_ID_NONE, 0 },
285 };
286 
287 /* map numeric codes from mdhd atom to ISO 639 */
288 /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
289 /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
290 /* deprecated by putting the code as 3*5bit ascii */
291 static const char mov_mdhd_language_map[][4] = {
292  /* 0-9 */
293  "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
294  "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
295  "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "",
296  "fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk",
297  "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
298  /*?*/
299  "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus",
300  "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
301  "pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao",
302  /* roman? arabic? */
303  "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
304  /*==rundi?*/
305  "", "run", "", "mlg", "epo", "", "", "", "", "",
306  /* 100 */
307  "", "", "", "", "", "", "", "", "", "",
308  "", "", "", "", "", "", "", "", "", "",
309  "", "", "", "", "", "", "", "", "wel", "baq",
310  "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
311 };
312 
313 int ff_mov_iso639_to_lang(const char lang[4], int mp4)
314 {
315  int i, code = 0;
316 
317  /* old way, only for QT? */
318  for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
319  if (!strcmp(lang, mov_mdhd_language_map[i]))
320  return i;
321  }
322  /* XXX:can we do that in mov too? */
323  if (!mp4)
324  return -1;
325  /* handle undefined as such */
326  if (lang[0] == '\0')
327  lang = "und";
328  /* 5bit ascii */
329  for (i = 0; i < 3; i++) {
330  uint8_t c = lang[i];
331  c -= 0x60;
332  if (c > 0x1f)
333  return -1;
334  code <<= 5;
335  code |= c;
336  }
337  return code;
338 }
339 
340 int ff_mov_lang_to_iso639(unsigned code, char to[4])
341 {
342  int i;
343  memset(to, 0, 4);
344  /* is it the mangled iso code? */
345  /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
346  if (code >= 0x400 && code != 0x7fff) {
347  for (i = 2; i >= 0; i--) {
348  to[i] = 0x60 + (code & 0x1f);
349  code >>= 5;
350  }
351  return 1;
352  }
353  /* old fashion apple lang code */
355  return 0;
356  if (!mov_mdhd_language_map[code][0])
357  return 0;
358  memcpy(to, mov_mdhd_language_map[code], 4);
359  return 1;
360 }
361 
363 {
364  int len = 0;
365  int count = 4;
366  while (count--) {
367  int c = avio_r8(pb);
368  len = (len << 7) | (c & 0x7f);
369  if (!(c & 0x80))
370  break;
371  }
372  return len;
373 }
374 
376 {
377  int len;
378  *tag = avio_r8(pb);
379  len = ff_mp4_read_descr_len(pb);
380  av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
381  return len;
382 }
383 
384 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
385 {
386  int flags;
387  if (es_id) *es_id = avio_rb16(pb);
388  else avio_rb16(pb);
389  flags = avio_r8(pb);
390  if (flags & 0x80) //streamDependenceFlag
391  avio_rb16(pb);
392  if (flags & 0x40) { //URL_Flag
393  int len = avio_r8(pb);
394  avio_skip(pb, len);
395  }
396  if (flags & 0x20) //OCRstreamFlag
397  avio_rb16(pb);
398 }
399 
400 static const AVCodecTag mp4_audio_types[] = {
401  { AV_CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
402  { AV_CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
403  { AV_CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
404  { AV_CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
405  { AV_CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
407 };
408 
410 {
411  int len, tag;
412  int object_type_id = avio_r8(pb);
413  avio_r8(pb); /* stream type */
414  avio_rb24(pb); /* buffer size db */
415  avio_rb32(pb); /* max bitrate */
416  avio_rb32(pb); /* avg bitrate */
417 
418  st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
419  av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
420  len = ff_mp4_read_descr(fc, pb, &tag);
421  if (tag == MP4DecSpecificDescrTag) {
422  av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
423  if (!len || (uint64_t)len > (1<<30))
424  return -1;
425  av_free(st->codec->extradata);
427  if (!st->codec->extradata)
428  return AVERROR(ENOMEM);
429  avio_read(pb, st->codec->extradata, len);
430  st->codec->extradata_size = len;
431  if (st->codec->codec_id == AV_CODEC_ID_AAC) {
432  MPEG4AudioConfig cfg;
434  st->codec->extradata_size * 8, 1);
435  st->codec->channels = cfg.channels;
436  if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
438  else if (cfg.ext_sample_rate)
439  st->codec->sample_rate = cfg.ext_sample_rate;
440  else
441  st->codec->sample_rate = cfg.sample_rate;
442  av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
443  "sample rate %d ext sample rate %d\n", st->codec->channels,
444  cfg.object_type, cfg.ext_object_type,
445  cfg.sample_rate, cfg.ext_sample_rate);
446  if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
447  cfg.object_type)))
449  }
450  }
451  return 0;
452 }
N Parametric Stereo.
Definition: mpeg4audio.h:85
int ff_mov_iso639_to_lang(const char lang[4], int mp4)
Definition: isom.c:313
static const AVCodecTag mp4_audio_types[]
Definition: isom.c:400
Bytestream IO Context.
Definition: avio.h:68
void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
Definition: isom.c:384
enum AVCodecID ff_codec_get_id(const AVCodecTag *tags, unsigned int tag)
Definition: utils.c:2126
Y Layer 1.
Definition: mpeg4audio.h:88
av_dlog(ac->avr,"%d samples - audio_convert: %s to %s (%s)\n", len, av_get_sample_fmt_name(ac->in_fmt), av_get_sample_fmt_name(ac->out_fmt), use_generic?ac->func_descr_generic:ac->func_descr)
unsigned int avio_rb16(AVIOContext *s)
Definition: aviobuf.c:562
mpeg audio layer common tables.
Format I/O context.
Definition: avformat.h:828
static const char mov_mdhd_language_map[][4]
Definition: isom.c:291
uint8_t
const AVCodecTag ff_codec_movvideo_tags[]
Definition: isom.c:68
unsigned int avio_rb32(AVIOContext *s)
Definition: aviobuf.c:577
const uint16_t avpriv_mpa_freq_tab[3]
Definition: mpegaudiodata.c:40
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
Definition: avcodec.h:1454
static int flags
Definition: log.c:42
uint32_t tag
Definition: movenc.c:802
int avio_read(AVIOContext *s, unsigned char *buf, int size)
Read size bytes from AVIOContext into buf.
Definition: aviobuf.c:446
int ff_mp4_read_dec_config_descr(AVFormatContext *fc, AVStream *st, AVIOContext *pb)
Definition: isom.c:409
void av_free(void *ptr)
Free a memory block which has been allocated with av_malloc(z)() or av_realloc(). ...
Definition: mem.c:139
int ff_mp4_read_descr_len(AVIOContext *pb)
Definition: isom.c:362
#define MP4DecSpecificDescrTag
Definition: isom.h:166
preferred ID for decoding MPEG audio layer 1, 2 or 3
Definition: avcodec.h:348
const AVCodecTag ff_mp4_obj_type[]
Definition: isom.c:34
const AVCodecTag ff_codec_movsubtitle_tags[]
Definition: isom.c:281
int avio_r8(AVIOContext *s)
Definition: aviobuf.c:437
AVCodecContext * codec
Codec context associated with this stream.
Definition: avformat.h:641
unsigned int avio_rb24(AVIOContext *s)
Definition: aviobuf.c:570
static av_always_inline int64_t avio_skip(AVIOContext *s, int64_t offset)
Skip given number of bytes forward.
Definition: avio.h:210
preferred ID for MPEG-1/2 video decoding
Definition: avcodec.h:100
int ff_mov_lang_to_iso639(unsigned code, char to[4])
Definition: isom.c:340
Stream structure.
Definition: avformat.h:622
FAKE codec to indicate a MPEG-4 Systems stream (only used by libavformat)
Definition: avcodec.h:432
const AVCodecTag ff_codec_movaudio_tags[]
Definition: isom.c:230
enum AVCodecID codec_id
Definition: avcodec.h:1350
Y Layer 2.
Definition: mpeg4audio.h:89
int sample_rate
samples per second
Definition: avcodec.h:2104
int extradata_size
Definition: avcodec.h:1455
Main libavformat public API header.
int ff_mp4_read_descr(AVFormatContext *fc, AVIOContext *pb, int *tag)
Definition: isom.c:375
int avpriv_mpeg4audio_get_config(MPEG4AudioConfig *c, const uint8_t *buf, int bit_size, int sync_extension)
Parse MPEG-4 systems extradata to retrieve audio configuration.
Definition: mpeg4audio.c:79
Y Audio LosslesS.
Definition: mpeg4audio.h:92
Y Layer 3.
Definition: mpeg4audio.h:90
as in Berlin toast format
Definition: avcodec.h:365
int len
int channels
number of audio channels
Definition: avcodec.h:2105
void * av_mallocz(size_t size)
Allocate a block of size bytes with alignment suitable for all memory accesses (including vectors if ...
Definition: mem.c:158