Dxtory capture format decoder
[libav.git] / libavformat / riff.c
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. */
31 const AVCodecTag ff_codec_bmp_tags[] = {
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('P', '4', '2', '2') },
176 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
177 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '6') },
178 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '2', '4') },
179 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
180 { CODEC_ID_RAWVIDEO, MKTAG('V', 'Y', 'U', 'Y') },
181 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
182 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
183 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', ' ', ' ') },
184 { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') },
185 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
186 { CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */
187 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', '1') },
188 { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '1', '2') },
189 { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '2', '1') },
190 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', 'B') },
191 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', 'B') },
192 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'V', '9') },
193 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
194 { CODEC_ID_RAWVIDEO, MKTAG('a', 'u', 'v', '2') },
195 { CODEC_ID_FRWU, MKTAG('F', 'R', 'W', 'U') },
196 { CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') },
197 { CODEC_ID_R210, MKTAG('r', '2', '1', '0') },
198 { CODEC_ID_V210, MKTAG('v', '2', '1', '0') },
199 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
200 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
201 { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') },
202 { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') },
203 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
204 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
205 { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
206 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
207 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
208 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
209 { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') },
210 { CODEC_ID_VP6F, MKTAG('F', 'L', 'V', '4') },
211 { CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') },
212 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
213 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
214 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
215 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
216 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
217 { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') },
218 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
219 { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) },
220 { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) },
221 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
222 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
223 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
224 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
225 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
226 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
227 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
228 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
229 { CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') },
230 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
231 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
232 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
233 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
234 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
235 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
236 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
237 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
238 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
239 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
240 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
241 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
242 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
243 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
244 { CODEC_ID_WMV3IMAGE, MKTAG('W', 'M', 'V', 'P') },
245 { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
246 { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
247 { CODEC_ID_VC1IMAGE, MKTAG('W', 'V', 'P', '2') },
248 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
249 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
250 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
251 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
252 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
253 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
254 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
255 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
256 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
257 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
258 { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
259 { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') },
260 { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
261 { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'C') },
262 { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'K') },
263 { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
264 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
265 { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') },
266 { CODEC_ID_PNG, MKTAG('P', 'N', 'G', '1') },
267 { CODEC_ID_CLJR, MKTAG('C', 'L', 'J', 'R') },
268 { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
269 { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') },
270 { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') },
271 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') },
272 { CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') },
273 { CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') },
274 { CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') },
275 { CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') },
276 { CODEC_ID_KGV1, MKTAG('K', 'G', 'V', '1') },
277 { CODEC_ID_LAGARITH, MKTAG('L', 'A', 'G', 'S') },
278 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'A') },
279 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'G') },
280 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '0') },
281 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '2') },
282 { CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') },
283 { CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') },
284 { CODEC_ID_NONE, 0 }
285 };
286
287 const AVCodecTag ff_codec_wav_tags[] = {
288 { CODEC_ID_PCM_S16LE, 0x0001 },
289 { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */
290 { CODEC_ID_PCM_S24LE, 0x0001 },
291 { CODEC_ID_PCM_S32LE, 0x0001 },
292 { CODEC_ID_ADPCM_MS, 0x0002 },
293 { CODEC_ID_PCM_F32LE, 0x0003 },
294 { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */
295 { CODEC_ID_PCM_ALAW, 0x0006 },
296 { CODEC_ID_PCM_MULAW, 0x0007 },
297 { CODEC_ID_WMAVOICE, 0x000A },
298 { CODEC_ID_ADPCM_IMA_WAV, 0x0011 },
299 { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */
300 { CODEC_ID_ADPCM_YAMAHA, 0x0020 },
301 { CODEC_ID_TRUESPEECH, 0x0022 },
302 { CODEC_ID_GSM_MS, 0x0031 },
303 { CODEC_ID_ADPCM_G726, 0x0045 },
304 { CODEC_ID_MP2, 0x0050 },
305 { CODEC_ID_MP3, 0x0055 },
306 { CODEC_ID_AMR_NB, 0x0057 },
307 { CODEC_ID_AMR_WB, 0x0058 },
308 { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */
309 { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */
310 { CODEC_ID_ADPCM_IMA_WAV, 0x0069 },
311 { CODEC_ID_VOXWARE, 0x0075 },
312 { CODEC_ID_AAC, 0x00ff },
313 { CODEC_ID_SIPR, 0x0130 },
314 { CODEC_ID_WMAV1, 0x0160 },
315 { CODEC_ID_WMAV2, 0x0161 },
316 { CODEC_ID_WMAPRO, 0x0162 },
317 { CODEC_ID_WMALOSSLESS, 0x0163 },
318 { CODEC_ID_ADPCM_CT, 0x0200 },
319 { CODEC_ID_ATRAC3, 0x0270 },
320 { CODEC_ID_ADPCM_G722, 0x028F },
321 { CODEC_ID_IMC, 0x0401 },
322 { CODEC_ID_GSM_MS, 0x1500 },
323 { CODEC_ID_TRUESPEECH, 0x1501 },
324 { CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */
325 { CODEC_ID_AAC_LATM, 0x1602 },
326 { CODEC_ID_AC3, 0x2000 },
327 { CODEC_ID_DTS, 0x2001 },
328 { CODEC_ID_SONIC, 0x2048 },
329 { CODEC_ID_SONIC_LS, 0x2048 },
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
346 const AVMetadataConv ff_riff_info_conv[] = {
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 */
388 int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
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);
530 codec->codec_type = AVMEDIA_TYPE_AUDIO;
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);
555 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
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 codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample);
567 if (codec->codec_id == CODEC_ID_AAC_LATM) {
568 /* channels and sample_rate values are those prior to applying SBR and/or PS */
569 codec->channels = 0;
570 codec->sample_rate = 0;
571 }
572 /* override bits_per_coded_sample for G.726 */
573 if (codec->codec_id == CODEC_ID_ADPCM_G726)
574 codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate;
575
576 return 0;
577 }
578
579
580 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps)
581 {
582 enum CodecID id;
583 id = ff_codec_get_id(ff_codec_wav_tags, tag);
584 if (id <= 0)
585 return id;
586 /* handle specific u8 codec */
587 if (id == CODEC_ID_PCM_S16LE && bps == 8)
588 id = CODEC_ID_PCM_U8;
589 if (id == CODEC_ID_PCM_S16LE && bps == 24)
590 id = CODEC_ID_PCM_S24LE;
591 if (id == CODEC_ID_PCM_S16LE && bps == 32)
592 id = CODEC_ID_PCM_S32LE;
593 if (id == CODEC_ID_PCM_F32LE && bps == 64)
594 id = CODEC_ID_PCM_F64LE;
595 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
596 id = CODEC_ID_PCM_ZORK;
597 return id;
598 }
599
600 int ff_get_bmp_header(AVIOContext *pb, AVStream *st)
601 {
602 int tag1;
603 avio_rl32(pb); /* size */
604 st->codec->width = avio_rl32(pb);
605 st->codec->height = (int32_t)avio_rl32(pb);
606 avio_rl16(pb); /* planes */
607 st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */
608 tag1 = avio_rl32(pb);
609 avio_rl32(pb); /* ImageSize */
610 avio_rl32(pb); /* XPelsPerMeter */
611 avio_rl32(pb); /* YPelsPerMeter */
612 avio_rl32(pb); /* ClrUsed */
613 avio_rl32(pb); /* ClrImportant */
614 return tag1;
615 }
616 #endif // CONFIG_DEMUXERS
617
618 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
619 {
620 int gcd;
621
622 *au_ssize= stream->block_align;
623 if(stream->frame_size && stream->sample_rate){
624 *au_scale=stream->frame_size;
625 *au_rate= stream->sample_rate;
626 }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
627 stream->codec_type == AVMEDIA_TYPE_DATA ||
628 stream->codec_type == AVMEDIA_TYPE_SUBTITLE){
629 *au_scale= stream->time_base.num;
630 *au_rate = stream->time_base.den;
631 }else{
632 *au_scale= stream->block_align ? stream->block_align*8 : 8;
633 *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
634 }
635 gcd= av_gcd(*au_scale, *au_rate);
636 *au_scale /= gcd;
637 *au_rate /= gcd;
638 }
639
640 int ff_read_riff_info(AVFormatContext *s, int64_t size)
641 {
642 int64_t start, end, cur;
643 AVIOContext *pb = s->pb;
644
645 start = avio_tell(pb);
646 end = start + size;
647
648 while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) {
649 uint32_t chunk_code;
650 int64_t chunk_size;
651 char key[5] = {0};
652 char *value;
653
654 chunk_code = avio_rl32(pb);
655 chunk_size = avio_rl32(pb);
656 if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) {
657 av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n");
658 return AVERROR_INVALIDDATA;
659 }
660
661 chunk_size += (chunk_size & 1);
662
663 value = av_malloc(chunk_size + 1);
664 if (!value) {
665 av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n");
666 return AVERROR(ENOMEM);
667 }
668
669 AV_WL32(key, chunk_code);
670
671 if (avio_read(pb, value, chunk_size) != chunk_size) {
672 av_freep(key);
673 av_freep(value);
674 av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n");
675 return AVERROR_INVALIDDATA;
676 }
677
678 value[chunk_size] = 0;
679
680 av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);
681 }
682
683 return 0;
684 }