3 * Copyright (c) 2000 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg 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.
12 * FFmpeg 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/mathematics.h"
23 #include "libavcodec/avcodec.h"
25 #include "avio_internal.h"
27 #include "libavcodec/bytestream.h"
28 #include "libavutil/avassert.h"
30 /* Note: when encoding, the first matching tag is used, so order is
31 important if multiple tags possible for a given codec. */
32 const AVCodecTag ff_codec_bmp_tags[] = {
33 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
34 { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
35 { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
36 { CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
37 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
38 { CODEC_ID_H264, MKTAG('D', 'A', 'V', 'C') },
39 { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
40 { CODEC_ID_H264, MKTAG('Q', '2', '6', '4') }, /* QNAP surveillance system */
41 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
42 { CODEC_ID_H263, MKTAG('X', '2', '6', '3') },
43 { CODEC_ID_H263, MKTAG('T', '2', '6', '3') },
44 { CODEC_ID_H263, MKTAG('L', '2', '6', '3') },
45 { CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') },
46 { CODEC_ID_H263, MKTAG('Z', 'y', 'G', 'o') },
47 { CODEC_ID_H263, MKTAG('M', '2', '6', '3') },
48 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
49 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
50 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
51 { CODEC_ID_H263, MKTAG('U', '2', '6', '3') },
52 { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') },
53 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
54 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') },
55 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
56 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
57 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
58 { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */
59 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
60 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
61 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
62 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
63 { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
64 { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
65 { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
66 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') },
67 { CODEC_ID_MPEG4, MKTAG('W', 'A', 'W', 'V') }, /* WaWv MPEG-4 Video Codec */
68 { CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') },
69 { CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') },
70 { CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') },
71 { CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') },
72 { CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') },
73 { CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') },
74 { CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') },
75 { CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') },
76 { CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') },
77 { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') },
78 { CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */
79 { CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') },
80 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') },
81 { CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') },
82 { CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */
83 { CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') },
84 { CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */
85 { CODEC_ID_MPEG4, MKTAG('S', 'N', '4', '0') },
86 { CODEC_ID_MPEG4, MKTAG('V', 'S', 'P', 'X') },
87 { CODEC_ID_MPEG4, MKTAG('U', 'L', 'D', 'X') },
88 { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'V') },
89 { CODEC_ID_MPEG4, MKTAG('S', 'I', 'P', 'P') }, /* Samsung SHR-6040 */
90 { CODEC_ID_MPEG4, MKTAG('S', 'M', '4', 'V') },
91 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'X') },
92 { CODEC_ID_MPEG4, MKTAG('D', 'r', 'e', 'X') },
93 { CODEC_ID_MPEG4, MKTAG('Q', 'M', 'P', '4') }, /* QNAP Systems */
94 { CODEC_ID_MPEG4, MKTAG('P', 'L', 'V', '1') }, /* Pelco DVR MPEG-4 */
95 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
96 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') },
97 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
98 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
99 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
100 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
101 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') },
102 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
103 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
104 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
105 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
106 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
107 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
108 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') },
109 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
110 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
111 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
112 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
113 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
114 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
115 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
116 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') },
117 { CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */
118 { CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */
119 { CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', '5') }, /* Canopus DV */
120 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
121 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 's') },
122 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
123 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'i', 's') },
124 { CODEC_ID_DVVIDEO, MKTAG('p', 'd', 'v', 'c') },
125 { CODEC_ID_DVVIDEO, MKTAG('S', 'L', '2', '5') },
126 { CODEC_ID_DVVIDEO, MKTAG('S', 'L', 'D', 'V') },
127 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
128 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
129 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
130 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
131 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
132 { CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') },
133 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
134 { CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) },
135 { CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) },
136 { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 16) },
137 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
138 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') },
139 { CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */
140 { CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') },
141 { CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') },
142 { CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */
143 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', 'v') },
144 { CODEC_ID_MPEG1VIDEO, MKTAG('B', 'W', '1', '0') },
145 { CODEC_ID_MPEG1VIDEO, MKTAG('X', 'M', 'P', 'G') }, /* Xing MPEG intra only */
146 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
147 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
148 { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') },
149 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') },
150 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
151 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
152 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
153 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'P', 'G') },
154 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
155 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') },
156 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') },
157 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') },
158 { CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') },
159 { CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') },
160 { CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */
161 { CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */
162 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') }, /* Intel JPEG Library Video Codec */
163 { CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') }, /* Midvid JPEG Video Codec */
164 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '1') },
165 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '2') },
166 { CODEC_ID_MJPEG, MKTAG('M', 'T', 'S', 'J') },
167 { CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') }, /* Paradigm Matrix M-JPEG Codec */
168 { CODEC_ID_MJPEG, MKTAG('M', 'M', 'J', 'P') },
169 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
170 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
171 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
172 { CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) },
173 { CODEC_ID_RAWVIDEO, MKTAG( 3 , 0 , 0 , 0 ) },
174 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
175 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
176 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
177 { CODEC_ID_RAWVIDEO, MKTAG('V', '4', '2', '2') },
178 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'N', 'V') },
179 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'V') },
180 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'Y') },
181 { CODEC_ID_RAWVIDEO, MKTAG('u', 'y', 'v', '1') },
182 { CODEC_ID_RAWVIDEO, MKTAG('2', 'V', 'u', '1') },
183 { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') },
184 { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') },
185 { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') },
186 { CODEC_ID_RAWVIDEO, MKTAG('P', '4', '2', '2') },
187 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
188 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '6') },
189 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '2', '4') },
190 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
191 { CODEC_ID_RAWVIDEO, MKTAG('V', 'Y', 'U', 'Y') },
192 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
193 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
194 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', ' ', ' ') },
195 { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') },
196 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
197 { CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */
198 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', '1') },
199 { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '1', '2') },
200 { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '2', '1') },
201 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', 'B') },
202 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', 'B') },
203 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'V', '9') },
204 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
205 { CODEC_ID_RAWVIDEO, MKTAG('a', 'u', 'v', '2') },
206 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'Y', 'U') },
207 { CODEC_ID_FRWU, MKTAG('F', 'R', 'W', 'U') },
208 { CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') },
209 { CODEC_ID_R210, MKTAG('r', '2', '1', '0') },
210 { CODEC_ID_V210, MKTAG('v', '2', '1', '0') },
211 { CODEC_ID_V308, MKTAG('v', '3', '0', '8') },
212 { CODEC_ID_V408, MKTAG('v', '4', '0', '8') },
213 { CODEC_ID_AYUV, MKTAG('A', 'Y', 'U', 'V') },
214 { CODEC_ID_V410, MKTAG('v', '4', '1', '0') },
215 { CODEC_ID_YUV4, MKTAG('y', 'u', 'v', '4') },
216 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
217 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
218 { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') },
219 { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') },
220 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
221 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
222 { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
223 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
224 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
225 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
226 { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') },
227 { CODEC_ID_VP6F, MKTAG('F', 'L', 'V', '4') },
228 { CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') },
229 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
230 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
231 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
232 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
233 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
234 { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') },
235 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
236 { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) },
237 { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) },
238 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
239 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
240 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
241 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
242 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
243 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
244 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
245 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
246 { CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') },
247 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
248 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
249 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
250 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
251 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
252 { CODEC_ID_FLV1, MKTAG('S', '2', '6', '3') },
253 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
254 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
255 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
256 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
257 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
258 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
259 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
260 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
261 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
262 { CODEC_ID_WMV3IMAGE, MKTAG('W', 'M', 'V', 'P') },
263 { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
264 { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
265 { CODEC_ID_VC1IMAGE, MKTAG('W', 'V', 'P', '2') },
266 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
267 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
268 { CODEC_ID_WNV1, MKTAG('Y', 'U', 'V', '8') },
269 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', '4') },
270 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
271 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
272 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
273 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
274 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
275 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
276 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
277 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
278 { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
279 { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') },
280 { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
281 { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'C') },
282 { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'K') },
283 { CODEC_ID_JPEG2000, MKTAG('I', 'P', 'J', '2') },
284 { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
285 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
286 { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') },
287 { CODEC_ID_PNG, MKTAG('P', 'N', 'G', '1') },
288 { CODEC_ID_CLJR, MKTAG('C', 'L', 'J', 'R') },
289 { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
290 { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') },
291 { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') },
292 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') },
293 { CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') },
294 { CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') },
295 { CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') },
296 { CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') },
297 { CODEC_ID_KGV1, MKTAG('K', 'G', 'V', '1') },
298 { CODEC_ID_LAGARITH, MKTAG('L', 'A', 'G', 'S') },
299 { CODEC_ID_G2M, MKTAG('G', '2', 'M', '2') },
300 { CODEC_ID_G2M, MKTAG('G', '2', 'M', '3') },
301 { CODEC_ID_G2M, MKTAG('G', '2', 'M', '4') },
302 { CODEC_ID_AMV, MKTAG('A', 'M', 'V', 'F') },
303 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'A') },
304 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'G') },
305 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '0') },
306 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '2') },
307 { CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') },
308 { CODEC_ID_ESCAPE130, MKTAG('E', '1', '3', '0') },
309 { CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') },
310 { CODEC_ID_ZEROCODEC, MKTAG('Z', 'E', 'C', 'O') },
311 { CODEC_ID_Y41P, MKTAG('Y', '4', '1', 'P') },
312 { CODEC_ID_FLIC, MKTAG('A', 'F', 'L', 'C') },
313 { CODEC_ID_EXR, MKTAG('e', 'x', 'r', ' ') },
314 { CODEC_ID_MSS1, MKTAG('M', 'S', 'S', '1') },
315 { CODEC_ID_MSA1, MKTAG('M', 'S', 'A', '1') },
316 { CODEC_ID_TSCC2, MKTAG('T', 'S', 'C', '2') },
317 { CODEC_ID_MTS2, MKTAG('M', 'T', 'S', '2') },
321 const AVCodecTag ff_codec_wav_tags[] = {
322 { CODEC_ID_PCM_S16LE, 0x0001 },
323 { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */
324 { CODEC_ID_PCM_S24LE, 0x0001 },
325 { CODEC_ID_PCM_S32LE, 0x0001 },
326 { CODEC_ID_ADPCM_MS, 0x0002 },
327 { CODEC_ID_PCM_F32LE, 0x0003 },
328 { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */
329 { CODEC_ID_PCM_ALAW, 0x0006 },
330 { CODEC_ID_PCM_MULAW, 0x0007 },
331 { CODEC_ID_WMAVOICE, 0x000A },
332 { CODEC_ID_ADPCM_IMA_WAV, 0x0011 },
333 { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */
334 { CODEC_ID_ADPCM_YAMAHA, 0x0020 },
335 { CODEC_ID_TRUESPEECH, 0x0022 },
336 { CODEC_ID_GSM_MS, 0x0031 },
337 { CODEC_ID_AMR_NB, 0x0038 }, /* rogue format number */
338 { CODEC_ID_G723_1, 0x0042 },
339 { CODEC_ID_ADPCM_G726, 0x0045 },
340 { CODEC_ID_MP2, 0x0050 },
341 { CODEC_ID_MP3, 0x0055 },
342 { CODEC_ID_AMR_NB, 0x0057 },
343 { CODEC_ID_AMR_WB, 0x0058 },
344 { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */
345 { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */
346 { CODEC_ID_ADPCM_IMA_WAV, 0x0069 },
347 { CODEC_ID_VOXWARE, 0x0075 },
348 { CODEC_ID_AAC, 0x00ff },
349 { CODEC_ID_SIPR, 0x0130 },
350 { CODEC_ID_WMAV1, 0x0160 },
351 { CODEC_ID_WMAV2, 0x0161 },
352 { CODEC_ID_WMAPRO, 0x0162 },
353 { CODEC_ID_WMALOSSLESS, 0x0163 },
354 { CODEC_ID_ADPCM_CT, 0x0200 },
355 { CODEC_ID_ATRAC3, 0x0270 },
356 { CODEC_ID_ADPCM_G722, 0x028F },
357 { CODEC_ID_IMC, 0x0401 },
358 { CODEC_ID_IAC, 0x0402 },
359 { CODEC_ID_GSM_MS, 0x1500 },
360 { CODEC_ID_TRUESPEECH, 0x1501 },
361 { CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */
362 { CODEC_ID_AAC_LATM, 0x1602 },
363 { CODEC_ID_AC3, 0x2000 },
364 { CODEC_ID_DTS, 0x2001 },
365 { CODEC_ID_SONIC, 0x2048 },
366 { CODEC_ID_SONIC_LS, 0x2048 },
367 { CODEC_ID_PCM_MULAW, 0x6c75 },
368 { CODEC_ID_AAC, 0x706d },
369 { CODEC_ID_AAC, 0x4143 },
370 { CODEC_ID_SPEEX, 0xA109 },
371 { CODEC_ID_FLAC, 0xF1AC },
372 { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' },
373 { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
375 /* FIXME: All of the IDs below are not 16 bit and thus illegal. */
376 // for NuppelVideo (nuv.c)
377 { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
378 { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') },
379 { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
380 { CODEC_ID_NONE, 0 },
383 const AVCodecGuid ff_codec_wav_guids[] = {
384 {CODEC_ID_AC3, {0x2C,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}},
385 {CODEC_ID_ATRAC3P, {0xBF,0xAA,0x23,0xE9,0x58,0xCB,0x71,0x44,0xA1,0x19,0xFF,0xFA,0x01,0xE4,0xCE,0x62}},
386 {CODEC_ID_EAC3, {0xAF,0x87,0xFB,0xA7,0x02,0x2D,0xFB,0x42,0xA4,0xD4,0x05,0xCD,0x93,0x84,0x3B,0xDD}},
387 {CODEC_ID_MP2, {0x2B,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}},
391 const AVMetadataConv ff_riff_info_conv[] = {
392 { "IART", "artist" },
393 { "ICMT", "comment" },
394 { "ICOP", "copyright" },
397 { "ILNG", "language" },
401 { "ISFT", "encoder" },
402 { "ISMP", "timecode" },
403 { "ITCH", "encoded_by"},
407 const char ff_riff_tags[][5] = {
408 "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
409 "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
410 "IPRT", "ISBJ", "ISFT", "ISHP", "ISMP", "ISRC", "ISRF", "ITCH",
415 int64_t ff_start_tag(AVIOContext *pb, const char *tag)
417 ffio_wfourcc(pb, tag);
419 return avio_tell(pb);
422 void ff_end_tag(AVIOContext *pb, int64_t start)
427 avio_seek(pb, start - 4, SEEK_SET);
428 avio_wl32(pb, (uint32_t)(pos - start));
429 avio_seek(pb, pos, SEEK_SET);
432 /* WAVEFORMATEX header */
433 /* returns the size or -1 on error */
434 int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
436 int bps, blkalign, bytespersec, frame_size;
438 int waveformatextensible;
440 uint8_t *riff_extradata= temp;
441 uint8_t *riff_extradata_start= temp;
443 if(!enc->codec_tag || enc->codec_tag > 0xffff)
446 /* We use the known constant frame size for the codec if known, otherwise
447 fallback to using AVCodecContext.frame_size, which is not as reliable
448 for indicating packet duration */
449 frame_size = av_get_audio_frame_duration(enc, 0);
451 frame_size = enc->frame_size;
453 waveformatextensible = (enc->channels > 2 && enc->channel_layout)
454 || enc->sample_rate > 48000
455 || av_get_bits_per_sample(enc->codec_id) > 16;
457 if (waveformatextensible) {
458 avio_wl16(pb, 0xfffe);
460 avio_wl16(pb, enc->codec_tag);
462 avio_wl16(pb, enc->channels);
463 avio_wl32(pb, enc->sample_rate);
464 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
467 if (!(bps = av_get_bits_per_sample(enc->codec_id))) {
468 if (enc->bits_per_coded_sample)
469 bps = enc->bits_per_coded_sample;
471 bps = 16; // default to 16
474 if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
475 av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
478 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
479 /* this is wrong, but it seems many demuxers do not work if this is set
481 blkalign = frame_size;
482 //blkalign = 144 * enc->bit_rate/enc->sample_rate;
483 } else if (enc->codec_id == CODEC_ID_AC3) {
484 blkalign = 3840; //maximum bytes per frame
485 } else if (enc->block_align != 0) { /* specified by the codec */
486 blkalign = enc->block_align;
488 blkalign = bps * enc->channels / av_gcd(8, bps);
489 if (enc->codec_id == CODEC_ID_PCM_U8 ||
490 enc->codec_id == CODEC_ID_PCM_S24LE ||
491 enc->codec_id == CODEC_ID_PCM_S32LE ||
492 enc->codec_id == CODEC_ID_PCM_F32LE ||
493 enc->codec_id == CODEC_ID_PCM_F64LE ||
494 enc->codec_id == CODEC_ID_PCM_S16LE) {
495 bytespersec = enc->sample_rate * blkalign;
497 bytespersec = enc->bit_rate / 8;
499 avio_wl32(pb, bytespersec); /* bytes per second */
500 avio_wl16(pb, blkalign); /* block align */
501 avio_wl16(pb, bps); /* bits per sample */
502 if (enc->codec_id == CODEC_ID_MP3) {
504 bytestream_put_le16(&riff_extradata, 1); /* wID */
505 bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */
506 bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */
507 bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */
508 bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */
509 } else if (enc->codec_id == CODEC_ID_MP2) {
511 bytestream_put_le16(&riff_extradata, 2); /* fwHeadLayer */
512 bytestream_put_le32(&riff_extradata, enc->bit_rate); /* dwHeadBitrate */
513 bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
514 bytestream_put_le16(&riff_extradata, 0); /* fwHeadModeExt */
515 bytestream_put_le16(&riff_extradata, 1); /* wHeadEmphasis */
516 bytestream_put_le16(&riff_extradata, 16); /* fwHeadFlags */
517 bytestream_put_le32(&riff_extradata, 0); /* dwPTSLow */
518 bytestream_put_le32(&riff_extradata, 0); /* dwPTSHigh */
519 } else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
521 bytestream_put_le16(&riff_extradata, frame_size); /* wSamplesPerBlock */
522 } else if(enc->extradata_size){
523 riff_extradata_start= enc->extradata;
524 riff_extradata= enc->extradata + enc->extradata_size;
525 hdrsize += enc->extradata_size;
527 if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */
529 avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */
530 avio_wl16(pb, bps); /* ValidBitsPerSample || SamplesPerBlock || Reserved */
531 avio_wl32(pb, enc->channel_layout); /* dwChannelMask */
532 avio_wl32(pb, enc->codec_tag); /* GUID + next 3 */
533 avio_wl32(pb, 0x00100000);
534 avio_wl32(pb, 0xAA000080);
535 avio_wl32(pb, 0x719B3800);
537 avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */
539 avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
548 /* BITMAPINFOHEADER header */
549 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
551 avio_wl32(pb, 40 + enc->extradata_size); /* size */
552 avio_wl32(pb, enc->width);
553 //We always store RGB TopDown
554 avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height);
555 avio_wl16(pb, 1); /* planes */
557 avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */
558 /* compression type */
559 avio_wl32(pb, enc->codec_tag);
560 avio_wl32(pb, (enc->width * enc->height * (enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24)+7) / 8);
566 avio_write(pb, enc->extradata, enc->extradata_size);
568 if (!for_asf && enc->extradata_size & 1)
571 #endif //CONFIG_MUXERS
574 /* We could be given one of the three possible structures here:
575 * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
576 * is an expansion of the previous one with the fields added
577 * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
578 * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself
579 * an openended structure.
581 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
586 codec->codec_type = AVMEDIA_TYPE_AUDIO;
587 codec->channels = avio_rl16(pb);
588 codec->sample_rate = avio_rl32(pb);
589 codec->bit_rate = avio_rl32(pb) * 8;
590 codec->block_align = avio_rl16(pb);
591 if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */
592 codec->bits_per_coded_sample = 8;
594 codec->bits_per_coded_sample = avio_rl16(pb);
596 codec->codec_tag = 0;
598 codec->codec_tag = id;
599 codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample);
601 if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */
602 int cbSize = avio_rl16(pb); /* cbSize */
604 cbSize = FFMIN(size, cbSize);
605 if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
606 ff_asf_guid subformat;
607 int bps = avio_rl16(pb);
609 codec->bits_per_coded_sample = bps;
610 codec->channel_layout = avio_rl32(pb); /* dwChannelMask */
611 ff_get_guid(pb, &subformat);
612 if (!memcmp(subformat + 4, (const uint8_t[]){FF_MEDIASUBTYPE_BASE_GUID}, 12)) {
613 codec->codec_tag = AV_RL32(subformat);
614 codec->codec_id = ff_wav_codec_get_id(codec->codec_tag, codec->bits_per_coded_sample);
616 codec->codec_id = ff_codec_guid_get_id(ff_codec_wav_guids, subformat);
617 if (!codec->codec_id)
618 av_log(codec, AV_LOG_WARNING, "unknown subformat:"FF_PRI_GUID"\n", FF_ARG_GUID(subformat));
623 codec->extradata_size = cbSize;
625 av_free(codec->extradata);
626 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
627 if (!codec->extradata)
628 return AVERROR(ENOMEM);
629 avio_read(pb, codec->extradata, codec->extradata_size);
633 /* It is possible for the chunk to contain garbage at the end */
637 if (codec->codec_id == CODEC_ID_AAC_LATM) {
638 /* channels and sample_rate values are those prior to applying SBR and/or PS */
640 codec->sample_rate = 0;
642 /* override bits_per_coded_sample for G.726 */
643 if (codec->codec_id == CODEC_ID_ADPCM_G726)
644 codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate;
650 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps)
653 id = ff_codec_get_id(ff_codec_wav_tags, tag);
656 /* handle specific u8 codec */
657 if (id == CODEC_ID_PCM_S16LE && bps == 8)
658 id = CODEC_ID_PCM_U8;
659 if (id == CODEC_ID_PCM_S16LE && bps == 24)
660 id = CODEC_ID_PCM_S24LE;
661 if (id == CODEC_ID_PCM_S16LE && bps == 32)
662 id = CODEC_ID_PCM_S32LE;
663 if (id == CODEC_ID_PCM_F32LE && bps == 64)
664 id = CODEC_ID_PCM_F64LE;
665 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
666 id = CODEC_ID_PCM_ZORK;
670 int ff_get_bmp_header(AVIOContext *pb, AVStream *st, unsigned *esize)
673 if(esize) *esize = avio_rl32(pb);
675 st->codec->width = avio_rl32(pb);
676 st->codec->height = (int32_t)avio_rl32(pb);
677 avio_rl16(pb); /* planes */
678 st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */
679 tag1 = avio_rl32(pb);
680 avio_rl32(pb); /* ImageSize */
681 avio_rl32(pb); /* XPelsPerMeter */
682 avio_rl32(pb); /* YPelsPerMeter */
683 avio_rl32(pb); /* ClrUsed */
684 avio_rl32(pb); /* ClrImportant */
687 #endif // CONFIG_DEMUXERS
689 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
692 int audio_frame_size;
694 /* We use the known constant frame size for the codec if known, otherwise
695 fallback to using AVCodecContext.frame_size, which is not as reliable
696 for indicating packet duration */
697 audio_frame_size = av_get_audio_frame_duration(stream, 0);
698 if (!audio_frame_size)
699 audio_frame_size = stream->frame_size;
701 *au_ssize= stream->block_align;
702 if (audio_frame_size && stream->sample_rate) {
703 *au_scale = audio_frame_size;
704 *au_rate= stream->sample_rate;
705 }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
706 stream->codec_type == AVMEDIA_TYPE_DATA ||
707 stream->codec_type == AVMEDIA_TYPE_SUBTITLE){
708 *au_scale= stream->time_base.num;
709 *au_rate = stream->time_base.den;
711 *au_scale= stream->block_align ? stream->block_align*8 : 8;
712 *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
714 gcd= av_gcd(*au_scale, *au_rate);
719 void ff_get_guid(AVIOContext *s, ff_asf_guid *g)
721 av_assert0(sizeof(*g) == 16); //compiler will optimize this out
722 if (avio_read(s, *g, sizeof(*g)) < (int)sizeof(*g))
723 memset(*g, 0, sizeof(*g));
726 enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid)
729 for (i = 0; guids[i].id != CODEC_ID_NONE; i++) {
730 if (!ff_guidcmp(guids[i].guid, guid))
733 return CODEC_ID_NONE;
736 int ff_read_riff_info(AVFormatContext *s, int64_t size)
738 int64_t start, end, cur;
739 AVIOContext *pb = s->pb;
741 start = avio_tell(pb);
744 while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) {
750 chunk_code = avio_rl32(pb);
751 chunk_size = avio_rl32(pb);
752 if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) {
753 av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n");
754 return AVERROR_INVALIDDATA;
757 chunk_size += (chunk_size & 1);
759 value = av_malloc(chunk_size + 1);
761 av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n");
762 return AVERROR(ENOMEM);
765 AV_WL32(key, chunk_code);
767 if (avio_read(pb, value, chunk_size) != chunk_size) {
769 av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n");
770 return AVERROR_INVALIDDATA;
773 value[chunk_size] = 0;
775 av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);