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 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 "riff.h"
30 #include "libavcodec/mpeg4audio.h"
32 
33 /* http://www.mp4ra.org */
34 /* ordered by muxing preference */
36  { CODEC_ID_MOV_TEXT , 0x08 },
37  { CODEC_ID_MPEG4 , 0x20 },
38  { CODEC_ID_H264 , 0x21 },
39  { CODEC_ID_AAC , 0x40 },
40  { CODEC_ID_MP4ALS , 0x40 }, /* 14496-3 ALS */
41  { CODEC_ID_MPEG2VIDEO, 0x61 }, /* MPEG2 Main */
42  { CODEC_ID_MPEG2VIDEO, 0x60 }, /* MPEG2 Simple */
43  { CODEC_ID_MPEG2VIDEO, 0x62 }, /* MPEG2 SNR */
44  { CODEC_ID_MPEG2VIDEO, 0x63 }, /* MPEG2 Spatial */
45  { CODEC_ID_MPEG2VIDEO, 0x64 }, /* MPEG2 High */
46  { CODEC_ID_MPEG2VIDEO, 0x65 }, /* MPEG2 422 */
47  { CODEC_ID_AAC , 0x66 }, /* MPEG2 AAC Main */
48  { CODEC_ID_AAC , 0x67 }, /* MPEG2 AAC Low */
49  { CODEC_ID_AAC , 0x68 }, /* MPEG2 AAC SSR */
50  { CODEC_ID_MP3 , 0x69 }, /* 13818-3 */
51  { CODEC_ID_MP2 , 0x69 }, /* 11172-3 */
52  { CODEC_ID_MPEG1VIDEO, 0x6A }, /* 11172-2 */
53  { CODEC_ID_MP3 , 0x6B }, /* 11172-3 */
54  { CODEC_ID_MJPEG , 0x6C }, /* 10918-1 */
55  { CODEC_ID_PNG , 0x6D },
56  { CODEC_ID_JPEG2000 , 0x6E }, /* 15444-1 */
57  { CODEC_ID_VC1 , 0xA3 },
58  { CODEC_ID_DIRAC , 0xA4 },
59  { CODEC_ID_AC3 , 0xA5 },
60  { CODEC_ID_DTS , 0xA9 }, /* mp4ra.org */
61  { CODEC_ID_VORBIS , 0xDD }, /* non standard, gpac uses it */
62  { CODEC_ID_DVD_SUBTITLE, 0xE0 }, /* non standard, see unsupported-embedded-subs-2.mp4 */
63  { CODEC_ID_QCELP , 0xE1 },
64  { CODEC_ID_MPEG4SYSTEMS, 0x01 },
65  { CODEC_ID_MPEG4SYSTEMS, 0x02 },
66  { CODEC_ID_NONE , 0 },
67 };
68 
70 /* { CODEC_ID_, MKTAG('I', 'V', '5', '0') }, *//* Indeo 5.0 */
71 
72  { CODEC_ID_RAWVIDEO, MKTAG('r', 'a', 'w', ' ') }, /* Uncompressed RGB */
73  { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') }, /* Uncompressed YUV422 */
74  { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'U', 'I') }, /* YUV with alpha-channel (AVID Uncompressed) */
75  { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') }, /* UNCOMPRESSED 8BIT 4:2:2 */
76  { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') }, /* same as 2vuy but byte swapped */
77 
78  { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '5', '5') },
79  { CODEC_ID_RAWVIDEO, MKTAG('L', '5', '6', '5') },
80  { CODEC_ID_RAWVIDEO, MKTAG('B', '5', '6', '5') },
81  { CODEC_ID_RAWVIDEO, MKTAG('2', '4', 'B', 'G') },
82  { CODEC_ID_RAWVIDEO, MKTAG('B', 'G', 'R', 'A') },
83  { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', 'A') },
84  { CODEC_ID_RAWVIDEO, MKTAG('A', 'B', 'G', 'R') },
85  { CODEC_ID_RAWVIDEO, MKTAG('b', '1', '6', 'g') },
86  { CODEC_ID_RAWVIDEO, MKTAG('b', '4', '8', 'r') },
87  { CODEC_ID_RAWVIDEO, MKTAG('D', 'V', 'O', 'O') }, /* Digital Voodoo SD 8 Bit */
88 
89  { CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') }, /* UNCOMPRESSED 10BIT RGB */
90  { CODEC_ID_R10K, MKTAG('R', '1', '0', 'g') }, /* UNCOMPRESSED 10BIT RGB */
91  { CODEC_ID_R210, MKTAG('r', '2', '1', '0') }, /* UNCOMPRESSED 10BIT RGB */
92  { CODEC_ID_V210, MKTAG('v', '2', '1', '0') }, /* UNCOMPRESSED 10BIT 4:2:2 */
93  { CODEC_ID_V410, MKTAG('v', '4', '1', '0') }, /* UNCOMPRESSED 10BIT 4:4:4 */
94 
95  { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, /* PhotoJPEG */
96  { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, /* Motion-JPEG (format A) */
97  { CODEC_ID_MJPEG, MKTAG('A', 'V', 'D', 'J') }, /* MJPEG with alpha-channel (AVID JFIF meridien compressed) */
98 /* { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, *//* MJPEG with alpha-channel (AVID ABVB/Truevision NuVista) */
99  { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, /* Motion JPEG OpenDML */
100  { CODEC_ID_MJPEGB, MKTAG('m', 'j', 'p', 'b') }, /* Motion-JPEG (format B) */
101 
102  { CODEC_ID_SVQ1, MKTAG('S', 'V', 'Q', '1') }, /* Sorenson Video v1 */
103  { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, /* Sorenson Video v1 */
104  { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', 'i') }, /* Sorenson Video v1 (from QT specs)*/
105  { CODEC_ID_SVQ3, MKTAG('S', 'V', 'Q', '3') }, /* Sorenson Video v3 */
106 
107  { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
108  { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, /* OpenDiVX *//* sample files at http://heroinewarrior.com/xmovie.php3 use this tag */
109  { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
110  { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, /* experimental: 3IVX files before ivx D4 4.5.1 */
111 
112  { CODEC_ID_H263, MKTAG('h', '2', '6', '3') }, /* H263 */
113  { CODEC_ID_H263, MKTAG('s', '2', '6', '3') }, /* H263 ?? works */
114 
115  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 'p') }, /* DV PAL */
116  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, /* DV NTSC */
117  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'p', 'p') }, /* DVCPRO PAL produced by FCP */
118  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'p') }, /* DVCPRO50 PAL produced by FCP */
119  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', 'n') }, /* DVCPRO50 NTSC produced by FCP */
120  { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', 'v') }, /* AVID DV */
121  { CODEC_ID_DVVIDEO, MKTAG('A', 'V', 'd', '1') }, /* AVID DV100 */
122  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'q') }, /* DVCPRO HD 720p50 */
123  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'p') }, /* DVCPRO HD 720p60 */
124  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
125  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '2') },
126  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '4') },
127  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '5') }, /* DVCPRO HD 50i produced by FCP */
128  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '6') }, /* DVCPRO HD 60i produced by FCP */
129  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '3') }, /* DVCPRO HD 30p produced by FCP */
130 
131  { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, /* On2 VP3 */
132  { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, /* Apple Video (RPZA) */
133  { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, /* Cinepak */
134  { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
135  { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
136  { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
137  { CODEC_ID_MSRLE, MKTAG('W', 'R', 'L', 'E') },
138  { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
139 
140  { CODEC_ID_RAWVIDEO, MKTAG('W', 'R', 'A', 'W') },
141 
142  { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, /* AVC-1/H.264 */
143  { CODEC_ID_H264, MKTAG('a', 'i', '5', 'p') }, /* AVC-Intra 50M 720p24/30/60 */
144  { CODEC_ID_H264, MKTAG('a', 'i', '5', 'q') }, /* AVC-Intra 50M 720p25/50 */
145  { CODEC_ID_H264, MKTAG('a', 'i', '5', '2') }, /* AVC-Intra 50M 1080p25/50 */
146  { CODEC_ID_H264, MKTAG('a', 'i', '5', '3') }, /* AVC-Intra 50M 1080p24/30/60 */
147  { CODEC_ID_H264, MKTAG('a', 'i', '5', '5') }, /* AVC-Intra 50M 1080i50 */
148  { CODEC_ID_H264, MKTAG('a', 'i', '5', '6') }, /* AVC-Intra 50M 1080i60 */
149  { CODEC_ID_H264, MKTAG('a', 'i', '1', 'p') }, /* AVC-Intra 100M 720p24/30/60 */
150  { CODEC_ID_H264, MKTAG('a', 'i', '1', 'q') }, /* AVC-Intra 100M 720p25/50 */
151  { CODEC_ID_H264, MKTAG('a', 'i', '1', '2') }, /* AVC-Intra 100M 1080p25/50 */
152  { CODEC_ID_H264, MKTAG('a', 'i', '1', '3') }, /* AVC-Intra 100M 1080p24/30/60 */
153  { CODEC_ID_H264, MKTAG('a', 'i', '1', '5') }, /* AVC-Intra 100M 1080i50 */
154  { CODEC_ID_H264, MKTAG('a', 'i', '1', '6') }, /* AVC-Intra 100M 1080i60 */
155 
156  { CODEC_ID_MPEG1VIDEO, MKTAG('m', '1', 'v', '1') }, /* Apple MPEG-1 Camcorder */
157  { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'e', 'g') }, /* MPEG */
158  { CODEC_ID_MPEG2VIDEO, MKTAG('m', '2', 'v', '1') }, /* Apple MPEG-2 Camcorder */
159  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '1') }, /* MPEG2 HDV 720p30 */
160  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '2') }, /* MPEG2 HDV 1080i60 */
161  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '3') }, /* MPEG2 HDV 1080i50 */
162  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '4') }, /* MPEG2 HDV 720p24 */
163  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '5') }, /* MPEG2 HDV 720p25 */
164  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '6') }, /* MPEG2 HDV 1080p24 */
165  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '7') }, /* MPEG2 HDV 1080p25 */
166  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '8') }, /* MPEG2 HDV 1080p30 */
167  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', '9') }, /* MPEG2 HDV 720p60 JVC */
168  { CODEC_ID_MPEG2VIDEO, MKTAG('h', 'd', 'v', 'a') }, /* MPEG2 HDV 720p50 */
169  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'n') }, /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
170  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '5', 'p') }, /* MPEG2 IMX PAL 625/50 50mb/s produced by FCP */
171  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'n') }, /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
172  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '4', 'p') }, /* MPEG2 IMX PAL 625/50 40mb/s produced by FCP */
173  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'n') }, /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
174  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'x', '3', 'p') }, /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
175  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '4') }, /* XDCAM HD422 720p24 CBR */
176  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '5') }, /* XDCAM HD422 720p25 CBR */
177  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', '9') }, /* XDCAM HD422 720p60 CBR */
178  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'a') }, /* XDCAM HD422 720p50 CBR */
179  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'b') }, /* XDCAM HD422 1080i60 CBR */
180  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'c') }, /* XDCAM HD422 1080i50 CBR */
181  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'd') }, /* XDCAM HD422 1080p24 CBR */
182  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'e') }, /* XDCAM HD422 1080p25 CBR */
183  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', '5', 'f') }, /* XDCAM HD422 1080p30 CBR */
184  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '1') }, /* XDCAM EX 720p30 VBR */
185  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '2') }, /* XDCAM HD 1080i60 */
186  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '3') }, /* XDCAM HD 1080i50 VBR */
187  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '4') }, /* XDCAM EX 720p24 VBR */
188  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '5') }, /* XDCAM EX 720p25 VBR */
189  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '6') }, /* XDCAM HD 1080p24 VBR */
190  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '7') }, /* XDCAM HD 1080p25 VBR */
191  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '8') }, /* XDCAM HD 1080p30 VBR */
192  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', '9') }, /* XDCAM EX 720p60 VBR */
193  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'a') }, /* XDCAM EX 720p50 VBR */
194  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'b') }, /* XDCAM EX 1080i60 VBR */
195  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'c') }, /* XDCAM EX 1080i50 VBR */
196  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'd') }, /* XDCAM EX 1080p24 VBR */
197  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'e') }, /* XDCAM EX 1080p25 VBR */
198  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'v', 'f') }, /* XDCAM EX 1080p30 VBR */
199  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', 'd') }, /* XDCAM HD 540p */
200  { CODEC_ID_MPEG2VIDEO, MKTAG('x', 'd', 'h', '2') }, /* XDCAM HD422 540p */
201  { CODEC_ID_MPEG2VIDEO, MKTAG('A', 'V', 'm', 'p') }, /* AVID IMX PAL */
202 
203  { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') }, /* JPEG 2000 produced by FCP */
204 
205  { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, /* Truevision Targa */
206  { CODEC_ID_TIFF, MKTAG('t', 'i', 'f', 'f') }, /* TIFF embedded in MOV */
207  { CODEC_ID_GIF, MKTAG('g', 'i', 'f', ' ') }, /* embedded gif files as frames (usually one "click to play movie" frame) */
208  { CODEC_ID_PNG, MKTAG('p', 'n', 'g', ' ') },
209 
210  { CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, /* SMPTE RP 2025 */
211  { CODEC_ID_CAVS, MKTAG('a', 'v', 's', '2') },
212 
213  { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
214  { CODEC_ID_DNXHD, MKTAG('A', 'V', 'd', 'n') }, /* AVID DNxHD */
215  { CODEC_ID_FLV1, MKTAG('H', '2', '6', '3') }, /* Flash Media Server */
216  { CODEC_ID_MSMPEG4V3, MKTAG('3', 'I', 'V', 'D') }, /* 3ivx DivX Doctor */
217  { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', '1', 'x') }, /* AVID 1:1x */
218  { CODEC_ID_RAWVIDEO, MKTAG('A', 'V', 'u', 'p') },
219  { CODEC_ID_SGI, MKTAG('s', 'g', 'i', ' ') }, /* SGI */
220  { CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') }, /* DPX */
221 
222  { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'h') }, /* Apple ProRes 422 High Quality */
223  { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'n') }, /* Apple ProRes 422 Standard Definition */
224  { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 's') }, /* Apple ProRes 422 LT */
225  { CODEC_ID_PRORES, MKTAG('a', 'p', 'c', 'o') }, /* Apple ProRes 422 Proxy */
226  { CODEC_ID_PRORES, MKTAG('a', 'p', '4', 'h') }, /* Apple ProRes 4444 */
227 
228  { CODEC_ID_NONE, 0 },
229 };
230 
232  { CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') },
233  { CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, /* ETSI TS 102 366 Annex F */
234  { CODEC_ID_AC3, MKTAG('s', 'a', 'c', '3') }, /* Nero Recode */
235  { CODEC_ID_ADPCM_IMA_QT, MKTAG('i', 'm', 'a', '4') },
236  { CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') },
237  { CODEC_ID_AMR_NB, MKTAG('s', 'a', 'm', 'r') }, /* AMR-NB 3gp */
238  { CODEC_ID_AMR_WB, MKTAG('s', 'a', 'w', 'b') }, /* AMR-WB 3gp */
239  { CODEC_ID_DTS, MKTAG('d', 't', 's', 'c') }, /* mp4ra.org */
240  { CODEC_ID_DTS, MKTAG('D', 'T', 'S', ' ') }, /* non-standard */
241  { CODEC_ID_DVAUDIO, MKTAG('v', 'd', 'v', 'a') },
242  { CODEC_ID_DVAUDIO, MKTAG('d', 'v', 'c', 'a') },
243  { CODEC_ID_GSM, MKTAG('a', 'g', 's', 'm') },
244  { CODEC_ID_MACE3, MKTAG('M', 'A', 'C', '3') },
245  { CODEC_ID_MACE6, MKTAG('M', 'A', 'C', '6') },
246  { CODEC_ID_MP1, MKTAG('.', 'm', 'p', '1') },
247  { CODEC_ID_MP2, MKTAG('.', 'm', 'p', '2') },
248  { CODEC_ID_MP3, MKTAG('.', 'm', 'p', '3') },
249  { CODEC_ID_MP3, 0x6D730055 },
250  { CODEC_ID_NELLYMOSER, MKTAG('n', 'm', 'o', 's') }, /* Flash Media Server */
251  { CODEC_ID_PCM_ALAW, MKTAG('a', 'l', 'a', 'w') },
252  { CODEC_ID_PCM_F32BE, MKTAG('f', 'l', '3', '2') },
253  { CODEC_ID_PCM_F32LE, MKTAG('f', 'l', '3', '2') },
254  { CODEC_ID_PCM_F64BE, MKTAG('f', 'l', '6', '4') },
255  { CODEC_ID_PCM_F64LE, MKTAG('f', 'l', '6', '4') },
256  { CODEC_ID_PCM_MULAW, MKTAG('u', 'l', 'a', 'w') },
257  { CODEC_ID_PCM_S16BE, MKTAG('t', 'w', 'o', 's') },
258  { CODEC_ID_PCM_S16LE, MKTAG('s', 'o', 'w', 't') },
259  { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
260  { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
261  { CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
262  { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
263  { CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
264  { CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') },
265  { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') },
266  { CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') },
267  { CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'p') },
268  { CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'q') },
269  { CODEC_ID_QCELP, MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
270  { CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') },
271  { CODEC_ID_QDMC, MKTAG('Q', 'D', 'M', 'C') },
272  { CODEC_ID_SPEEX, MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
273  { CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
274  { CODEC_ID_NONE, 0 },
275 };
276 
278  { CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
279  { CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
280  { CODEC_ID_NONE, 0 },
281 };
282 
283 /* map numeric codes from mdhd atom to ISO 639 */
284 /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
285 /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
286 /* deprecated by putting the code as 3*5bit ascii */
287 static const char mov_mdhd_language_map[][4] = {
288  /* 0-9 */
289  "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
290  "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
291  "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "",
292  "fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk",
293  "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
294  /*?*/
295  "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus",
296  "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
297  "pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao",
298  /* roman? arabic? */
299  "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
300  /*==rundi?*/
301  "", "run", "", "mlg", "epo", "", "", "", "", "",
302  /* 100 */
303  "", "", "", "", "", "", "", "", "", "",
304  "", "", "", "", "", "", "", "", "", "",
305  "", "", "", "", "", "", "", "", "wel", "baq",
306  "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
307 };
308 
309 int ff_mov_iso639_to_lang(const char lang[4], int mp4)
310 {
311  int i, code = 0;
312 
313  /* old way, only for QT? */
314  for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
315  if (!strcmp(lang, mov_mdhd_language_map[i]))
316  return i;
317  }
318  /* XXX:can we do that in mov too? */
319  if (!mp4)
320  return -1;
321  /* handle undefined as such */
322  if (lang[0] == '\0')
323  lang = "und";
324  /* 5bit ascii */
325  for (i = 0; i < 3; i++) {
326  uint8_t c = lang[i];
327  c -= 0x60;
328  if (c > 0x1f)
329  return -1;
330  code <<= 5;
331  code |= c;
332  }
333  return code;
334 }
335 
336 int ff_mov_lang_to_iso639(unsigned code, char to[4])
337 {
338  int i;
339  memset(to, 0, 4);
340  /* is it the mangled iso code? */
341  /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
342  if (code > 138) {
343  for (i = 2; i >= 0; i--) {
344  to[i] = 0x60 + (code & 0x1f);
345  code >>= 5;
346  }
347  return 1;
348  }
349  /* old fashion apple lang code */
351  return 0;
352  if (!mov_mdhd_language_map[code][0])
353  return 0;
354  memcpy(to, mov_mdhd_language_map[code], 4);
355  return 1;
356 }
357 
359 {
360  int len = 0;
361  int count = 4;
362  while (count--) {
363  int c = avio_r8(pb);
364  len = (len << 7) | (c & 0x7f);
365  if (!(c & 0x80))
366  break;
367  }
368  return len;
369 }
370 
372 {
373  int len;
374  *tag = avio_r8(pb);
375  len = ff_mp4_read_descr_len(pb);
376  av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
377  return len;
378 }
379 
380 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
381 {
382  int flags;
383  if (es_id) *es_id = avio_rb16(pb);
384  else avio_rb16(pb);
385  flags = avio_r8(pb);
386  if (flags & 0x80) //streamDependenceFlag
387  avio_rb16(pb);
388  if (flags & 0x40) { //URL_Flag
389  int len = avio_r8(pb);
390  avio_skip(pb, len);
391  }
392  if (flags & 0x20) //OCRstreamFlag
393  avio_rb16(pb);
394 }
395 
396 static const AVCodecTag mp4_audio_types[] = {
397  { CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
398  { CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
399  { CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
400  { CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
401  { CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
402  { CODEC_ID_NONE, AOT_NULL },
403 };
404 
406 {
407  int len, tag;
408  int object_type_id = avio_r8(pb);
409  avio_r8(pb); /* stream type */
410  avio_rb24(pb); /* buffer size db */
411  avio_rb32(pb); /* max bitrate */
412  avio_rb32(pb); /* avg bitrate */
413 
414  st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
415  av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
416  len = ff_mp4_read_descr(fc, pb, &tag);
417  if (tag == MP4DecSpecificDescrTag) {
418  av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
419  if (!len || (uint64_t)len > (1<<30))
420  return -1;
421  av_free(st->codec->extradata);
423  if (!st->codec->extradata)
424  return AVERROR(ENOMEM);
425  avio_read(pb, st->codec->extradata, len);
426  st->codec->extradata_size = len;
427  if (st->codec->codec_id == CODEC_ID_AAC) {
428  MPEG4AudioConfig cfg;
430  st->codec->extradata_size * 8, 1);
431  st->codec->channels = cfg.channels;
432  if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
434  else if (cfg.ext_sample_rate)
435  st->codec->sample_rate = cfg.ext_sample_rate;
436  else
437  st->codec->sample_rate = cfg.sample_rate;
438  av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
439  "sample rate %d ext sample rate %d\n", st->codec->channels,
440  cfg.object_type, cfg.ext_object_type,
441  cfg.sample_rate, cfg.ext_sample_rate);
442  if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
443  cfg.object_type)))
444  st->codec->codec_id = CODEC_ID_AAC;
445  }
446  }
447  return 0;
448 }