riff.c
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1 /*
2  * RIFF codec tags
3  * Copyright (c) 2000 Fabrice Bellard
4  *
5  * This file is part of Libav.
6  *
7  * Libav is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * Libav is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "libavutil/mathematics.h"
23 #include "libavcodec/avcodec.h"
24 #include "avformat.h"
25 #include "avio_internal.h"
26 #include "riff.h"
27 #include "libavcodec/bytestream.h"
28 
29 /* Note: when encoding, the first matching tag is used, so order is
30  important if multiple tags possible for a given codec. */
32  { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
33  { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
34  { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
35  { CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
36  { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
37  { CODEC_ID_H264, MKTAG('D', 'A', 'V', 'C') },
38  { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
39  { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
40  { CODEC_ID_H263, MKTAG('X', '2', '6', '3') },
41  { CODEC_ID_H263, MKTAG('T', '2', '6', '3') },
42  { CODEC_ID_H263, MKTAG('L', '2', '6', '3') },
43  { CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') },
44  { CODEC_ID_H263, MKTAG('Z', 'y', 'G', 'o') },
45  { CODEC_ID_H263, MKTAG('M', '2', '6', '3') },
46  { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
47  { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
48  { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
49  { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
50  { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
51  { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') },
52  { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
53  { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') },
54  { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
55  { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
56  { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
57  { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */
58  { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
59  { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
60  { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
61  { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
62  { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
63  { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
64  { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
65  { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') },
66  { CODEC_ID_MPEG4, MKTAG('W', 'A', 'W', 'V') }, /* WaWv MPEG-4 Video Codec */
67  { CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') },
68  { CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') },
69  { CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') },
70  { CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') },
71  { CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') },
72  { CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') },
73  { CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') },
74  { CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') },
75  { CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') },
76  { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') },
77  { CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */
78  { CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') },
79  { CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') },
80  { CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') },
81  { CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */
82  { CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') },
83  { CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */
84  { CODEC_ID_MPEG4, MKTAG('S', 'N', '4', '0') },
85  { CODEC_ID_MPEG4, MKTAG('V', 'S', 'P', 'X') },
86  { CODEC_ID_MPEG4, MKTAG('U', 'L', 'D', 'X') },
87  { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'V') },
88  { CODEC_ID_MPEG4, MKTAG('S', 'I', 'P', 'P') }, /* Samsung SHR-6040 */
89  { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'X') },
90  { CODEC_ID_MPEG4, MKTAG('D', 'r', 'e', 'X') },
91  { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
92  { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') },
93  { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
94  { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
95  { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
96  { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
97  { CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') },
98  { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
99  { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
100  { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
101  { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
102  { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
103  { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
104  { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') },
105  { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
106  { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
107  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
108  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
109  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
110  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
111  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
112  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') },
113  { CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */
114  { CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */
115  { CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', '5') }, /* Canopus DV */
116  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
117  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 's') },
118  { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
119  { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
120  { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
121  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
122  { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
123  { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
124  { CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') },
125  { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
126  { CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) },
127  { CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) },
128  { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 16) },
129  { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
130  { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') },
131  { CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */
132  { CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') },
133  { CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') },
134  { CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */
135  { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', 'v') },
136  { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
137  { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
138  { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') },
139  { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') },
140  { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
141  { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
142  { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
143  { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'P', 'G') },
144  { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
145  { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') },
146  { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') },
147  { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') },
148  { CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') },
149  { CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') },
150  { CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */
151  { CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */
152  { CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') }, /* Intel JPEG Library Video Codec */
153  { CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') }, /* Midvid JPEG Video Codec */
154  { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '1') },
155  { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '2') },
156  { CODEC_ID_MJPEG, MKTAG('M', 'T', 'S', 'J') },
157  { CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') }, /* Paradigm Matrix M-JPEG Codec */
158  { CODEC_ID_MJPEG, MKTAG('M', 'M', 'J', 'P') },
159  { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
160  { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
161  { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
162  { CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) },
163  { CODEC_ID_RAWVIDEO, MKTAG( 3 , 0 , 0 , 0 ) },
164  { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
165  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
166  { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
167  { CODEC_ID_RAWVIDEO, MKTAG('V', '4', '2', '2') },
168  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'N', 'V') },
169  { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'V') },
170  { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'Y') },
171  { CODEC_ID_RAWVIDEO, MKTAG('u', 'y', 'v', '1') },
172  { CODEC_ID_RAWVIDEO, MKTAG('2', 'V', 'u', '1') },
173  { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') },
174  { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') },
175  { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') },
176  { CODEC_ID_RAWVIDEO, MKTAG('P', '4', '2', '2') },
177  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
178  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '6') },
179  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '2', '4') },
180  { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
181  { CODEC_ID_RAWVIDEO, MKTAG('V', 'Y', 'U', 'Y') },
182  { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
183  { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
184  { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', ' ', ' ') },
185  { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') },
186  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
187  { CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */
188  { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', '1') },
189  { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '1', '2') },
190  { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '2', '1') },
191  { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', 'B') },
192  { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', 'B') },
193  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'V', '9') },
194  { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
195  { CODEC_ID_RAWVIDEO, MKTAG('a', 'u', 'v', '2') },
196  { CODEC_ID_FRWU, MKTAG('F', 'R', 'W', 'U') },
197  { CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') },
198  { CODEC_ID_R210, MKTAG('r', '2', '1', '0') },
199  { CODEC_ID_V210, MKTAG('v', '2', '1', '0') },
200  { CODEC_ID_V410, MKTAG('v', '4', '1', '0') },
201  { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
202  { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
203  { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') },
204  { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') },
205  { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
206  { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
207  { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
208  { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
209  { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
210  { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
211  { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') },
212  { CODEC_ID_VP6F, MKTAG('F', 'L', 'V', '4') },
213  { CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') },
214  { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
215  { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
216  { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
217  { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
218  { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
219  { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') },
220  { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
221  { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) },
222  { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) },
223  { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
224  { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
225  { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
226  { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
227  { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
228  { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
229  { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
230  { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
231  { CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') },
232  { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
233  { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
234  { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
235  { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
236  { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
237  { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
238  { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
239  { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
240  { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
241  { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
242  { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
243  { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
244  { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
245  { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
246  { CODEC_ID_WMV3IMAGE, MKTAG('W', 'M', 'V', 'P') },
247  { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
248  { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
249  { CODEC_ID_VC1IMAGE, MKTAG('W', 'V', 'P', '2') },
250  { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
251  { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
252  { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
253  { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
254  { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
255  { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
256  { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
257  { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
258  { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
259  { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
260  { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
261  { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') },
262  { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
263  { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'C') },
264  { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'K') },
265  { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
266  { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
267  { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') },
268  { CODEC_ID_PNG, MKTAG('P', 'N', 'G', '1') },
269  { CODEC_ID_CLJR, MKTAG('C', 'L', 'J', 'R') },
270  { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
271  { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') },
272  { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') },
273  { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') },
274  { CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') },
275  { CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') },
276  { CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') },
277  { CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') },
278  { CODEC_ID_KGV1, MKTAG('K', 'G', 'V', '1') },
279  { CODEC_ID_LAGARITH, MKTAG('L', 'A', 'G', 'S') },
280  { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'A') },
281  { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'G') },
282  { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '0') },
283  { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '2') },
284  { CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') },
285  { CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') },
286  { CODEC_ID_NONE, 0 }
287 };
288 
290  { CODEC_ID_PCM_S16LE, 0x0001 },
291  { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */
292  { CODEC_ID_PCM_S24LE, 0x0001 },
293  { CODEC_ID_PCM_S32LE, 0x0001 },
294  { CODEC_ID_ADPCM_MS, 0x0002 },
295  { CODEC_ID_PCM_F32LE, 0x0003 },
296  { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */
297  { CODEC_ID_PCM_ALAW, 0x0006 },
298  { CODEC_ID_PCM_MULAW, 0x0007 },
299  { CODEC_ID_WMAVOICE, 0x000A },
300  { CODEC_ID_ADPCM_IMA_WAV, 0x0011 },
301  { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */
302  { CODEC_ID_ADPCM_YAMAHA, 0x0020 },
303  { CODEC_ID_TRUESPEECH, 0x0022 },
304  { CODEC_ID_GSM_MS, 0x0031 },
305  { CODEC_ID_ADPCM_G726, 0x0045 },
306  { CODEC_ID_MP2, 0x0050 },
307  { CODEC_ID_MP3, 0x0055 },
308  { CODEC_ID_AMR_NB, 0x0057 },
309  { CODEC_ID_AMR_WB, 0x0058 },
310  { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */
311  { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */
312  { CODEC_ID_ADPCM_IMA_WAV, 0x0069 },
313  { CODEC_ID_VOXWARE, 0x0075 },
314  { CODEC_ID_AAC, 0x00ff },
315  { CODEC_ID_SIPR, 0x0130 },
316  { CODEC_ID_WMAV1, 0x0160 },
317  { CODEC_ID_WMAV2, 0x0161 },
318  { CODEC_ID_WMAPRO, 0x0162 },
319  { CODEC_ID_WMALOSSLESS, 0x0163 },
320  { CODEC_ID_ADPCM_CT, 0x0200 },
321  { CODEC_ID_ATRAC3, 0x0270 },
322  { CODEC_ID_ADPCM_G722, 0x028F },
323  { CODEC_ID_IMC, 0x0401 },
324  { CODEC_ID_GSM_MS, 0x1500 },
325  { CODEC_ID_TRUESPEECH, 0x1501 },
326  { CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */
327  { CODEC_ID_AAC_LATM, 0x1602 },
328  { CODEC_ID_AC3, 0x2000 },
329  { CODEC_ID_DTS, 0x2001 },
330  { CODEC_ID_PCM_MULAW, 0x6c75 },
331  { CODEC_ID_AAC, 0x706d },
332  { CODEC_ID_AAC, 0x4143 },
333  { CODEC_ID_SPEEX, 0xA109 },
334  { CODEC_ID_FLAC, 0xF1AC },
335  { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' },
336  { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
337 
338  /* FIXME: All of the IDs below are not 16 bit and thus illegal. */
339  // for NuppelVideo (nuv.c)
340  { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
341  { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') },
342  { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
343  { CODEC_ID_NONE, 0 },
344 };
345 
347  { "IART", "artist" },
348  { "ICMT", "comment" },
349  { "ICOP", "copyright" },
350  { "ICRD", "date" },
351  { "IGNR", "genre" },
352  { "ILNG", "language" },
353  { "INAM", "title" },
354  { "IPRD", "album" },
355  { "IPRT", "track" },
356  { "ISFT", "encoder" },
357  { "ITCH", "encoded_by"},
358  { 0 },
359 };
360 
361 const char ff_riff_tags[][5] = {
362  "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
363  "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
364  "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH",
365  {0}
366 };
367 
368 #if CONFIG_MUXERS
369 int64_t ff_start_tag(AVIOContext *pb, const char *tag)
370 {
371  ffio_wfourcc(pb, tag);
372  avio_wl32(pb, 0);
373  return avio_tell(pb);
374 }
375 
376 void ff_end_tag(AVIOContext *pb, int64_t start)
377 {
378  int64_t pos;
379 
380  pos = avio_tell(pb);
381  avio_seek(pb, start - 4, SEEK_SET);
382  avio_wl32(pb, (uint32_t)(pos - start));
383  avio_seek(pb, pos, SEEK_SET);
384 }
385 
386 /* WAVEFORMATEX header */
387 /* returns the size or -1 on error */
389 {
390  int bps, blkalign, bytespersec;
391  int hdrsize = 18;
392  int waveformatextensible;
393  uint8_t temp[256];
394  uint8_t *riff_extradata= temp;
395  uint8_t *riff_extradata_start= temp;
396 
397  if(!enc->codec_tag || enc->codec_tag > 0xffff)
398  return -1;
399  waveformatextensible = (enc->channels > 2 && enc->channel_layout)
400  || enc->sample_rate > 48000
401  || av_get_bits_per_sample(enc->codec_id) > 16;
402 
403  if (waveformatextensible) {
404  avio_wl16(pb, 0xfffe);
405  } else {
406  avio_wl16(pb, enc->codec_tag);
407  }
408  avio_wl16(pb, enc->channels);
409  avio_wl32(pb, enc->sample_rate);
410  if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
411  bps = 0;
412  } else {
413  if (!(bps = av_get_bits_per_sample(enc->codec_id))) {
414  if (enc->bits_per_coded_sample)
415  bps = enc->bits_per_coded_sample;
416  else
417  bps = 16; // default to 16
418  }
419  }
420  if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
421  av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
422  }
423 
424  if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
425  blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly
426  //blkalign = 144 * enc->bit_rate/enc->sample_rate;
427  } else if (enc->codec_id == CODEC_ID_AC3) {
428  blkalign = 3840; //maximum bytes per frame
429  } else if (enc->block_align != 0) { /* specified by the codec */
430  blkalign = enc->block_align;
431  } else
432  blkalign = bps * enc->channels / av_gcd(8, bps);
433  if (enc->codec_id == CODEC_ID_PCM_U8 ||
434  enc->codec_id == CODEC_ID_PCM_S24LE ||
435  enc->codec_id == CODEC_ID_PCM_S32LE ||
436  enc->codec_id == CODEC_ID_PCM_F32LE ||
437  enc->codec_id == CODEC_ID_PCM_F64LE ||
438  enc->codec_id == CODEC_ID_PCM_S16LE) {
439  bytespersec = enc->sample_rate * blkalign;
440  } else {
441  bytespersec = enc->bit_rate / 8;
442  }
443  avio_wl32(pb, bytespersec); /* bytes per second */
444  avio_wl16(pb, blkalign); /* block align */
445  avio_wl16(pb, bps); /* bits per sample */
446  if (enc->codec_id == CODEC_ID_MP3) {
447  hdrsize += 12;
448  bytestream_put_le16(&riff_extradata, 1); /* wID */
449  bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */
450  bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */
451  bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */
452  bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */
453  } else if (enc->codec_id == CODEC_ID_MP2) {
454  hdrsize += 22;
455  bytestream_put_le16(&riff_extradata, 2); /* fwHeadLayer */
456  bytestream_put_le32(&riff_extradata, enc->bit_rate); /* dwHeadBitrate */
457  bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
458  bytestream_put_le16(&riff_extradata, 0); /* fwHeadModeExt */
459  bytestream_put_le16(&riff_extradata, 1); /* wHeadEmphasis */
460  bytestream_put_le16(&riff_extradata, 16); /* fwHeadFlags */
461  bytestream_put_le32(&riff_extradata, 0); /* dwPTSLow */
462  bytestream_put_le32(&riff_extradata, 0); /* dwPTSHigh */
463  } else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
464  hdrsize += 2;
465  bytestream_put_le16(&riff_extradata, enc->frame_size); /* wSamplesPerBlock */
466  } else if(enc->extradata_size){
467  riff_extradata_start= enc->extradata;
468  riff_extradata= enc->extradata + enc->extradata_size;
469  hdrsize += enc->extradata_size;
470  }
471  if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */
472  hdrsize += 22;
473  avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */
474  avio_wl16(pb, enc->bits_per_coded_sample); /* ValidBitsPerSample || SamplesPerBlock || Reserved */
475  avio_wl32(pb, enc->channel_layout); /* dwChannelMask */
476  avio_wl32(pb, enc->codec_tag); /* GUID + next 3 */
477  avio_wl32(pb, 0x00100000);
478  avio_wl32(pb, 0xAA000080);
479  avio_wl32(pb, 0x719B3800);
480  } else {
481  avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */
482  }
483  avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
484  if(hdrsize&1){
485  hdrsize++;
486  avio_w8(pb, 0);
487  }
488 
489  return hdrsize;
490 }
491 
492 /* BITMAPINFOHEADER header */
493 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
494 {
495  avio_wl32(pb, 40 + enc->extradata_size); /* size */
496  avio_wl32(pb, enc->width);
497  //We always store RGB TopDown
498  avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height);
499  avio_wl16(pb, 1); /* planes */
500 
501  avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */
502  /* compression type */
503  avio_wl32(pb, enc->codec_tag);
504  avio_wl32(pb, enc->width * enc->height * 3);
505  avio_wl32(pb, 0);
506  avio_wl32(pb, 0);
507  avio_wl32(pb, 0);
508  avio_wl32(pb, 0);
509 
510  avio_write(pb, enc->extradata, enc->extradata_size);
511 
512  if (!for_asf && enc->extradata_size & 1)
513  avio_w8(pb, 0);
514 }
515 #endif //CONFIG_MUXERS
516 
517 #if CONFIG_DEMUXERS
518 /* We could be given one of the three possible structures here:
519  * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
520  * is an expansion of the previous one with the fields added
521  * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
522  * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself
523  * an openended structure.
524  */
525 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
526 {
527  int id;
528 
529  id = avio_rl16(pb);
531  codec->codec_tag = id;
532  codec->channels = avio_rl16(pb);
533  codec->sample_rate = avio_rl32(pb);
534  codec->bit_rate = avio_rl32(pb) * 8;
535  codec->block_align = avio_rl16(pb);
536  if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */
537  codec->bits_per_coded_sample = 8;
538  }else
539  codec->bits_per_coded_sample = avio_rl16(pb);
540  if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */
541  int cbSize = avio_rl16(pb); /* cbSize */
542  size -= 18;
543  cbSize = FFMIN(size, cbSize);
544  if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
545  codec->bits_per_coded_sample = avio_rl16(pb);
546  codec->channel_layout = avio_rl32(pb); /* dwChannelMask */
547  id = avio_rl32(pb); /* 4 first bytes of GUID */
548  avio_skip(pb, 12); /* skip end of GUID */
549  cbSize -= 22;
550  size -= 22;
551  }
552  codec->extradata_size = cbSize;
553  if (cbSize > 0) {
554  av_free(codec->extradata);
556  if (!codec->extradata)
557  return AVERROR(ENOMEM);
558  avio_read(pb, codec->extradata, codec->extradata_size);
559  size -= cbSize;
560  }
561 
562  /* It is possible for the chunk to contain garbage at the end */
563  if (size > 0)
564  avio_skip(pb, size);
565  }
566  if (codec->sample_rate <= 0) {
568  "Invalid sample rate: %d\n", codec->sample_rate);
569  return AVERROR_INVALIDDATA;
570  }
572  if (codec->codec_id == CODEC_ID_AAC_LATM) {
573  /* channels and sample_rate values are those prior to applying SBR and/or PS */
574  codec->channels = 0;
575  codec->sample_rate = 0;
576  }
577  /* override bits_per_coded_sample for G.726 */
578  if (codec->codec_id == CODEC_ID_ADPCM_G726)
579  codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate;
580 
581  return 0;
582 }
583 
584 
585 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps)
586 {
587  enum CodecID id;
588  id = ff_codec_get_id(ff_codec_wav_tags, tag);
589  if (id <= 0)
590  return id;
591  /* handle specific u8 codec */
592  if (id == CODEC_ID_PCM_S16LE && bps == 8)
593  id = CODEC_ID_PCM_U8;
594  if (id == CODEC_ID_PCM_S16LE && bps == 24)
595  id = CODEC_ID_PCM_S24LE;
596  if (id == CODEC_ID_PCM_S16LE && bps == 32)
597  id = CODEC_ID_PCM_S32LE;
598  if (id == CODEC_ID_PCM_F32LE && bps == 64)
599  id = CODEC_ID_PCM_F64LE;
600  if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
601  id = CODEC_ID_PCM_ZORK;
602  return id;
603 }
604 
606 {
607  int tag1;
608  avio_rl32(pb); /* size */
609  st->codec->width = avio_rl32(pb);
610  st->codec->height = (int32_t)avio_rl32(pb);
611  avio_rl16(pb); /* planes */
612  st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */
613  tag1 = avio_rl32(pb);
614  avio_rl32(pb); /* ImageSize */
615  avio_rl32(pb); /* XPelsPerMeter */
616  avio_rl32(pb); /* YPelsPerMeter */
617  avio_rl32(pb); /* ClrUsed */
618  avio_rl32(pb); /* ClrImportant */
619  return tag1;
620 }
621 #endif // CONFIG_DEMUXERS
622 
623 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
624 {
625  int gcd;
626 
627  *au_ssize= stream->block_align;
628  if(stream->frame_size && stream->sample_rate){
629  *au_scale=stream->frame_size;
630  *au_rate= stream->sample_rate;
631  }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
632  stream->codec_type == AVMEDIA_TYPE_DATA ||
633  stream->codec_type == AVMEDIA_TYPE_SUBTITLE){
634  *au_scale= stream->time_base.num;
635  *au_rate = stream->time_base.den;
636  }else{
637  *au_scale= stream->block_align ? stream->block_align*8 : 8;
638  *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
639  }
640  gcd= av_gcd(*au_scale, *au_rate);
641  *au_scale /= gcd;
642  *au_rate /= gcd;
643 }
644 
645 int ff_read_riff_info(AVFormatContext *s, int64_t size)
646 {
647  int64_t start, end, cur;
648  AVIOContext *pb = s->pb;
649 
650  start = avio_tell(pb);
651  end = start + size;
652 
653  while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) {
654  uint32_t chunk_code;
655  int64_t chunk_size;
656  char key[5] = {0};
657  char *value;
658 
659  chunk_code = avio_rl32(pb);
660  chunk_size = avio_rl32(pb);
661  if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) {
662  av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n");
663  return AVERROR_INVALIDDATA;
664  }
665 
666  chunk_size += (chunk_size & 1);
667 
668  value = av_malloc(chunk_size + 1);
669  if (!value) {
670  av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n");
671  return AVERROR(ENOMEM);
672  }
673 
674  AV_WL32(key, chunk_code);
675 
676  if (avio_read(pb, value, chunk_size) != chunk_size) {
677  av_freep(key);
678  av_freep(value);
679  av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n");
680  return AVERROR_INVALIDDATA;
681  }
682 
683  value[chunk_size] = 0;
684 
685  av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
686  }
687 
688  return 0;
689 }