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_S16BE, MKTAG('l', 'p', 'c', 'm') },
260  { CODEC_ID_PCM_S16LE, MKTAG('l', 'p', 'c', 'm') },
261  { CODEC_ID_PCM_S24BE, MKTAG('i', 'n', '2', '4') },
262  { CODEC_ID_PCM_S24LE, MKTAG('i', 'n', '2', '4') },
263  { CODEC_ID_PCM_S32BE, MKTAG('i', 'n', '3', '2') },
264  { CODEC_ID_PCM_S32LE, MKTAG('i', 'n', '3', '2') },
265  { CODEC_ID_PCM_S8, MKTAG('s', 'o', 'w', 't') },
266  { CODEC_ID_PCM_U8, MKTAG('r', 'a', 'w', ' ') },
267  { CODEC_ID_PCM_U8, MKTAG('N', 'O', 'N', 'E') },
268  { CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'p') },
269  { CODEC_ID_QCELP, MKTAG('Q', 'c', 'l', 'q') },
270  { CODEC_ID_QCELP, MKTAG('s', 'q', 'c', 'p') }, /* ISO Media fourcc */
271  { CODEC_ID_QDM2, MKTAG('Q', 'D', 'M', '2') },
272  { CODEC_ID_QDMC, MKTAG('Q', 'D', 'M', 'C') },
273  { CODEC_ID_SPEEX, MKTAG('s', 'p', 'e', 'x') }, /* Flash Media Server */
274  { CODEC_ID_WMAV2, MKTAG('W', 'M', 'A', '2') },
275  { CODEC_ID_NONE, 0 },
276 };
277 
279  { CODEC_ID_MOV_TEXT, MKTAG('t', 'e', 'x', 't') },
280  { CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') },
281  { CODEC_ID_NONE, 0 },
282 };
283 
284 /* map numeric codes from mdhd atom to ISO 639 */
285 /* cf. QTFileFormat.pdf p253, qtff.pdf p205 */
286 /* http://developer.apple.com/documentation/mac/Text/Text-368.html */
287 /* deprecated by putting the code as 3*5bit ascii */
288 static const char mov_mdhd_language_map[][4] = {
289  /* 0-9 */
290  "eng", "fra", "ger", "ita", "dut", "sve", "spa", "dan", "por", "nor",
291  "heb", "jpn", "ara", "fin", "gre", "ice", "mlt", "tur", "hr "/*scr*/, "chi"/*ace?*/,
292  "urd", "hin", "tha", "kor", "lit", "pol", "hun", "est", "lav", "",
293  "fo ", "", "rus", "chi", "", "iri", "alb", "ron", "ces", "slk",
294  "slv", "yid", "sr ", "mac", "bul", "ukr", "bel", "uzb", "kaz", "aze",
295  /*?*/
296  "aze", "arm", "geo", "mol", "kir", "tgk", "tuk", "mon", "", "pus",
297  "kur", "kas", "snd", "tib", "nep", "san", "mar", "ben", "asm", "guj",
298  "pa ", "ori", "mal", "kan", "tam", "tel", "", "bur", "khm", "lao",
299  /* roman? arabic? */
300  "vie", "ind", "tgl", "may", "may", "amh", "tir", "orm", "som", "swa",
301  /*==rundi?*/
302  "", "run", "", "mlg", "epo", "", "", "", "", "",
303  /* 100 */
304  "", "", "", "", "", "", "", "", "", "",
305  "", "", "", "", "", "", "", "", "", "",
306  "", "", "", "", "", "", "", "", "wel", "baq",
307  "cat", "lat", "que", "grn", "aym", "tat", "uig", "dzo", "jav"
308 };
309 
310 int ff_mov_iso639_to_lang(const char lang[4], int mp4)
311 {
312  int i, code = 0;
313 
314  /* old way, only for QT? */
315  for (i = 0; lang[0] && !mp4 && i < FF_ARRAY_ELEMS(mov_mdhd_language_map); i++) {
316  if (!strcmp(lang, mov_mdhd_language_map[i]))
317  return i;
318  }
319  /* XXX:can we do that in mov too? */
320  if (!mp4)
321  return -1;
322  /* handle undefined as such */
323  if (lang[0] == '\0')
324  lang = "und";
325  /* 5bit ascii */
326  for (i = 0; i < 3; i++) {
327  uint8_t c = lang[i];
328  c -= 0x60;
329  if (c > 0x1f)
330  return -1;
331  code <<= 5;
332  code |= c;
333  }
334  return code;
335 }
336 
337 int ff_mov_lang_to_iso639(unsigned code, char to[4])
338 {
339  int i;
340  memset(to, 0, 4);
341  /* is it the mangled iso code? */
342  /* see http://www.geocities.com/xhelmboyx/quicktime/formats/mp4-layout.txt */
343  if (code >= 0x400 && code != 0x7fff) {
344  for (i = 2; i >= 0; i--) {
345  to[i] = 0x60 + (code & 0x1f);
346  code >>= 5;
347  }
348  return 1;
349  }
350  /* old fashion apple lang code */
352  return 0;
353  if (!mov_mdhd_language_map[code][0])
354  return 0;
355  memcpy(to, mov_mdhd_language_map[code], 4);
356  return 1;
357 }
358 
360 {
361  int len = 0;
362  int count = 4;
363  while (count--) {
364  int c = avio_r8(pb);
365  len = (len << 7) | (c & 0x7f);
366  if (!(c & 0x80))
367  break;
368  }
369  return len;
370 }
371 
373 {
374  int len;
375  *tag = avio_r8(pb);
376  len = ff_mp4_read_descr_len(pb);
377  av_dlog(fc, "MPEG4 description: tag=0x%02x len=%d\n", *tag, len);
378  return len;
379 }
380 
381 void ff_mp4_parse_es_descr(AVIOContext *pb, int *es_id)
382 {
383  int flags;
384  if (es_id) *es_id = avio_rb16(pb);
385  else avio_rb16(pb);
386  flags = avio_r8(pb);
387  if (flags & 0x80) //streamDependenceFlag
388  avio_rb16(pb);
389  if (flags & 0x40) { //URL_Flag
390  int len = avio_r8(pb);
391  avio_skip(pb, len);
392  }
393  if (flags & 0x20) //OCRstreamFlag
394  avio_rb16(pb);
395 }
396 
397 static const AVCodecTag mp4_audio_types[] = {
398  { CODEC_ID_MP3ON4, AOT_PS }, /* old mp3on4 draft */
399  { CODEC_ID_MP3ON4, AOT_L1 }, /* layer 1 */
400  { CODEC_ID_MP3ON4, AOT_L2 }, /* layer 2 */
401  { CODEC_ID_MP3ON4, AOT_L3 }, /* layer 3 */
402  { CODEC_ID_MP4ALS, AOT_ALS }, /* MPEG-4 ALS */
403  { CODEC_ID_NONE, AOT_NULL },
404 };
405 
407 {
408  int len, tag;
409  int object_type_id = avio_r8(pb);
410  avio_r8(pb); /* stream type */
411  avio_rb24(pb); /* buffer size db */
412  avio_rb32(pb); /* max bitrate */
413  avio_rb32(pb); /* avg bitrate */
414 
415  st->codec->codec_id= ff_codec_get_id(ff_mp4_obj_type, object_type_id);
416  av_dlog(fc, "esds object type id 0x%02x\n", object_type_id);
417  len = ff_mp4_read_descr(fc, pb, &tag);
418  if (tag == MP4DecSpecificDescrTag) {
419  av_dlog(fc, "Specific MPEG4 header len=%d\n", len);
420  if (!len || (uint64_t)len > (1<<30))
421  return -1;
422  av_free(st->codec->extradata);
424  if (!st->codec->extradata)
425  return AVERROR(ENOMEM);
426  avio_read(pb, st->codec->extradata, len);
427  st->codec->extradata_size = len;
428  if (st->codec->codec_id == CODEC_ID_AAC) {
429  MPEG4AudioConfig cfg;
431  st->codec->extradata_size * 8, 1);
432  st->codec->channels = cfg.channels;
433  if (cfg.object_type == 29 && cfg.sampling_index < 3) // old mp3on4
435  else if (cfg.ext_sample_rate)
436  st->codec->sample_rate = cfg.ext_sample_rate;
437  else
438  st->codec->sample_rate = cfg.sample_rate;
439  av_dlog(fc, "mp4a config channels %d obj %d ext obj %d "
440  "sample rate %d ext sample rate %d\n", st->codec->channels,
441  cfg.object_type, cfg.ext_object_type,
442  cfg.sample_rate, cfg.ext_sample_rate);
443  if (!(st->codec->codec_id = ff_codec_get_id(mp4_audio_types,
444  cfg.object_type)))
445  st->codec->codec_id = CODEC_ID_AAC;
446  }
447  }
448  return 0;
449 }