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"
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_H264, MKTAG('Q', '2', '6', '4') }, /* QNAP surveillance system */
40 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
41 { CODEC_ID_H263, MKTAG('X', '2', '6', '3') },
42 { CODEC_ID_H263, MKTAG('T', '2', '6', '3') },
43 { CODEC_ID_H263, MKTAG('L', '2', '6', '3') },
44 { CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') },
45 { CODEC_ID_H263, MKTAG('Z', 'y', 'G', 'o') },
46 { CODEC_ID_H263, MKTAG('M', '2', '6', '3') },
47 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
48 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
49 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
50 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
51 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
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('X', 'V', 'I', 'X') },
91 { CODEC_ID_MPEG4, MKTAG('D', 'r', 'e', 'X') },
92 { CODEC_ID_MPEG4, MKTAG('Q', 'M', 'P', '4') }, /* QNAP Systems */
93 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
94 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') },
95 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
96 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
97 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
98 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
99 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') },
100 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
101 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
102 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
103 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
104 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
105 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
106 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') },
107 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
108 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
109 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
110 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
111 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
112 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
113 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
114 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') },
115 { CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */
116 { CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */
117 { CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', '5') }, /* Canopus DV */
118 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
119 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 's') },
120 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
121 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
122 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
123 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
124 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
125 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
126 { CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') },
127 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
128 { CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) },
129 { CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) },
130 { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 16) },
131 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
132 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') },
133 { CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */
134 { CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') },
135 { CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') },
136 { CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */
137 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', 'v') },
138 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
139 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
140 { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') },
141 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') },
142 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
143 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
144 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
145 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'P', 'G') },
146 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
147 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') },
148 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') },
149 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') },
150 { CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') },
151 { CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') },
152 { CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */
153 { CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */
154 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') }, /* Intel JPEG Library Video Codec */
155 { CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') }, /* Midvid JPEG Video Codec */
156 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '1') },
157 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '2') },
158 { CODEC_ID_MJPEG, MKTAG('M', 'T', 'S', 'J') },
159 { CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') }, /* Paradigm Matrix M-JPEG Codec */
160 { CODEC_ID_MJPEG, MKTAG('M', 'M', 'J', 'P') },
161 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
162 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
163 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
164 { CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) },
165 { CODEC_ID_RAWVIDEO, MKTAG( 3 , 0 , 0 , 0 ) },
166 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
167 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
168 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
169 { CODEC_ID_RAWVIDEO, MKTAG('V', '4', '2', '2') },
170 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'N', 'V') },
171 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'V') },
172 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'Y') },
173 { CODEC_ID_RAWVIDEO, MKTAG('u', 'y', 'v', '1') },
174 { CODEC_ID_RAWVIDEO, MKTAG('2', 'V', 'u', '1') },
175 { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') },
176 { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', 's') },
177 { CODEC_ID_RAWVIDEO, MKTAG('y', 'u', 'v', '2') },
178 { CODEC_ID_RAWVIDEO, MKTAG('P', '4', '2', '2') },
179 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
180 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '6') },
181 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '2', '4') },
182 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
183 { CODEC_ID_RAWVIDEO, MKTAG('V', 'Y', 'U', 'Y') },
184 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
185 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
186 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', ' ', ' ') },
187 { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') },
188 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
189 { CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */
190 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', '1') },
191 { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '1', '2') },
192 { CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '2', '1') },
193 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', 'B') },
194 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', 'B') },
195 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'V', '9') },
196 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
197 { CODEC_ID_RAWVIDEO, MKTAG('a', 'u', 'v', '2') },
198 { CODEC_ID_FRWU, MKTAG('F', 'R', 'W', 'U') },
199 { CODEC_ID_R10K, MKTAG('R', '1', '0', 'k') },
200 { CODEC_ID_R210, MKTAG('r', '2', '1', '0') },
201 { CODEC_ID_V210, MKTAG('v', '2', '1', '0') },
202 { CODEC_ID_V308, MKTAG('v', '3', '0', '8') },
203 { CODEC_ID_V410, MKTAG('v', '4', '1', '0') },
204 { CODEC_ID_YUV4, MKTAG('y', 'u', 'v', '4') },
205 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
206 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
207 { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') },
208 { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') },
209 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
210 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
211 { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
212 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
213 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
214 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
215 { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') },
216 { CODEC_ID_VP6F, MKTAG('F', 'L', 'V', '4') },
217 { CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') },
218 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
219 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
220 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
221 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
222 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
223 { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') },
224 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
225 { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) },
226 { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) },
227 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
228 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
229 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
230 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
231 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
232 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
233 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
234 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
235 { CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') },
236 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
237 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
238 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
239 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
240 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
241 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
242 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
243 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
244 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
245 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
246 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
247 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
248 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
249 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
250 { CODEC_ID_WMV3IMAGE, MKTAG('W', 'M', 'V', 'P') },
251 { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
252 { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
253 { CODEC_ID_VC1IMAGE, MKTAG('W', 'V', 'P', '2') },
254 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
255 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
256 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
257 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
258 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
259 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
260 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
261 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
262 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
263 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
264 { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
265 { CODEC_ID_JPEG2000, MKTAG('m', 'j', 'p', '2') },
266 { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
267 { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'C') },
268 { CODEC_ID_JPEG2000, MKTAG('L', 'J', '2', 'K') },
269 { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
270 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
271 { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') },
272 { CODEC_ID_PNG, MKTAG('P', 'N', 'G', '1') },
273 { CODEC_ID_CLJR, MKTAG('C', 'L', 'J', 'R') },
274 { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
275 { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') },
276 { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') },
277 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') },
278 { CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') },
279 { CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') },
280 { CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') },
281 { CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') },
282 { CODEC_ID_KGV1, MKTAG('K', 'G', 'V', '1') },
283 { CODEC_ID_LAGARITH, MKTAG('L', 'A', 'G', 'S') },
284 { CODEC_ID_G2M, MKTAG('G', '2', 'M', '2') },
285 { CODEC_ID_G2M, MKTAG('G', '2', 'M', '3') },
286 { CODEC_ID_G2M, MKTAG('G', '2', 'M', '4') },
287 { CODEC_ID_AMV, MKTAG('A', 'M', 'V', 'F') },
288 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'A') },
289 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'R', 'G') },
290 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '0') },
291 { CODEC_ID_UTVIDEO, MKTAG('U', 'L', 'Y', '2') },
292 { CODEC_ID_VBLE, MKTAG('V', 'B', 'L', 'E') },
293 { CODEC_ID_ESCAPE130, MKTAG('E', '1', '3', '0') },
294 { CODEC_ID_DXTORY, MKTAG('x', 't', 'o', 'r') },
295 { CODEC_ID_Y41P, MKTAG('Y', '4', '1', 'P') },
299 const AVCodecTag ff_codec_wav_tags[] = {
300 { CODEC_ID_PCM_S16LE, 0x0001 },
301 { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */
302 { CODEC_ID_PCM_S24LE, 0x0001 },
303 { CODEC_ID_PCM_S32LE, 0x0001 },
304 { CODEC_ID_ADPCM_MS, 0x0002 },
305 { CODEC_ID_PCM_F32LE, 0x0003 },
306 { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */
307 { CODEC_ID_PCM_ALAW, 0x0006 },
308 { CODEC_ID_PCM_MULAW, 0x0007 },
309 { CODEC_ID_WMAVOICE, 0x000A },
310 { CODEC_ID_ADPCM_IMA_WAV, 0x0011 },
311 { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */
312 { CODEC_ID_ADPCM_YAMAHA, 0x0020 },
313 { CODEC_ID_TRUESPEECH, 0x0022 },
314 { CODEC_ID_GSM_MS, 0x0031 },
315 { CODEC_ID_AMR_NB, 0x0038 }, /* rogue format number */
316 { CODEC_ID_ADPCM_G726, 0x0045 },
317 { CODEC_ID_MP2, 0x0050 },
318 { CODEC_ID_MP3, 0x0055 },
319 { CODEC_ID_AMR_NB, 0x0057 },
320 { CODEC_ID_AMR_WB, 0x0058 },
321 { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */
322 { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */
323 { CODEC_ID_ADPCM_IMA_WAV, 0x0069 },
324 { CODEC_ID_VOXWARE, 0x0075 },
325 { CODEC_ID_AAC, 0x00ff },
326 { CODEC_ID_SIPR, 0x0130 },
327 { CODEC_ID_WMAV1, 0x0160 },
328 { CODEC_ID_WMAV2, 0x0161 },
329 { CODEC_ID_WMAPRO, 0x0162 },
330 { CODEC_ID_WMALOSSLESS, 0x0163 },
331 { CODEC_ID_ADPCM_CT, 0x0200 },
332 { CODEC_ID_ATRAC3, 0x0270 },
333 { CODEC_ID_ADPCM_G722, 0x028F },
334 { CODEC_ID_IMC, 0x0401 },
335 { CODEC_ID_GSM_MS, 0x1500 },
336 { CODEC_ID_TRUESPEECH, 0x1501 },
337 { CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */
338 { CODEC_ID_AAC_LATM, 0x1602 },
339 { CODEC_ID_AC3, 0x2000 },
340 { CODEC_ID_DTS, 0x2001 },
341 { CODEC_ID_PCM_MULAW, 0x6c75 },
342 { CODEC_ID_AAC, 0x706d },
343 { CODEC_ID_AAC, 0x4143 },
344 { CODEC_ID_SPEEX, 0xA109 },
345 { CODEC_ID_FLAC, 0xF1AC },
346 { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' },
347 { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
349 /* FIXME: All of the IDs below are not 16 bit and thus illegal. */
350 // for NuppelVideo (nuv.c)
351 { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
352 { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') },
353 { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
354 { CODEC_ID_NONE, 0 },
357 const AVCodecGuid ff_codec_wav_guids[] = {
358 {CODEC_ID_AC3, {0x2C,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}},
359 {CODEC_ID_ATRAC3P, {0xBF,0xAA,0x23,0xE9,0x58,0xCB,0x71,0x44,0xA1,0x19,0xFF,0xFA,0x01,0xE4,0xCE,0x62}},
360 {CODEC_ID_EAC3, {0xAF,0x87,0xFB,0xA7,0x02,0x2D,0xFB,0x42,0xA4,0xD4,0x05,0xCD,0x93,0x84,0x3B,0xDD}},
361 {CODEC_ID_MP2, {0x2B,0x80,0x6D,0xE0,0x46,0xDB,0xCF,0x11,0xB4,0xD1,0x00,0x80,0x5F,0x6C,0xBB,0xEA}},
365 const AVMetadataConv ff_riff_info_conv[] = {
366 { "IART", "artist" },
367 { "ICMT", "comment" },
368 { "ICOP", "copyright" },
371 { "ILNG", "language" },
375 { "ISFT", "encoder" },
376 { "ITCH", "encoded_by"},
380 const char ff_riff_tags[][5] = {
381 "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
382 "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
383 "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH",
388 int64_t ff_start_tag(AVIOContext *pb, const char *tag)
390 ffio_wfourcc(pb, tag);
392 return avio_tell(pb);
395 void ff_end_tag(AVIOContext *pb, int64_t start)
400 avio_seek(pb, start - 4, SEEK_SET);
401 avio_wl32(pb, (uint32_t)(pos - start));
402 avio_seek(pb, pos, SEEK_SET);
405 /* WAVEFORMATEX header */
406 /* returns the size or -1 on error */
407 int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc)
409 int bps, blkalign, bytespersec;
411 int waveformatextensible;
413 uint8_t *riff_extradata= temp;
414 uint8_t *riff_extradata_start= temp;
416 if(!enc->codec_tag || enc->codec_tag > 0xffff)
418 waveformatextensible = (enc->channels > 2 && enc->channel_layout)
419 || enc->sample_rate > 48000
420 || av_get_bits_per_sample(enc->codec_id) > 16;
422 if (waveformatextensible) {
423 avio_wl16(pb, 0xfffe);
425 avio_wl16(pb, enc->codec_tag);
427 avio_wl16(pb, enc->channels);
428 avio_wl32(pb, enc->sample_rate);
429 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
432 if (!(bps = av_get_bits_per_sample(enc->codec_id))) {
433 if (enc->bits_per_coded_sample)
434 bps = enc->bits_per_coded_sample;
436 bps = 16; // default to 16
439 if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
440 av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
443 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3) {
444 blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly
445 //blkalign = 144 * enc->bit_rate/enc->sample_rate;
446 } else if (enc->codec_id == CODEC_ID_AC3) {
447 blkalign = 3840; //maximum bytes per frame
448 } else if (enc->block_align != 0) { /* specified by the codec */
449 blkalign = enc->block_align;
451 blkalign = bps * enc->channels / av_gcd(8, bps);
452 if (enc->codec_id == CODEC_ID_PCM_U8 ||
453 enc->codec_id == CODEC_ID_PCM_S24LE ||
454 enc->codec_id == CODEC_ID_PCM_S32LE ||
455 enc->codec_id == CODEC_ID_PCM_F32LE ||
456 enc->codec_id == CODEC_ID_PCM_F64LE ||
457 enc->codec_id == CODEC_ID_PCM_S16LE) {
458 bytespersec = enc->sample_rate * blkalign;
460 bytespersec = enc->bit_rate / 8;
462 avio_wl32(pb, bytespersec); /* bytes per second */
463 avio_wl16(pb, blkalign); /* block align */
464 avio_wl16(pb, bps); /* bits per sample */
465 if (enc->codec_id == CODEC_ID_MP3) {
467 bytestream_put_le16(&riff_extradata, 1); /* wID */
468 bytestream_put_le32(&riff_extradata, 2); /* fdwFlags */
469 bytestream_put_le16(&riff_extradata, 1152); /* nBlockSize */
470 bytestream_put_le16(&riff_extradata, 1); /* nFramesPerBlock */
471 bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */
472 } else if (enc->codec_id == CODEC_ID_MP2) {
474 bytestream_put_le16(&riff_extradata, 2); /* fwHeadLayer */
475 bytestream_put_le32(&riff_extradata, enc->bit_rate); /* dwHeadBitrate */
476 bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
477 bytestream_put_le16(&riff_extradata, 0); /* fwHeadModeExt */
478 bytestream_put_le16(&riff_extradata, 1); /* wHeadEmphasis */
479 bytestream_put_le16(&riff_extradata, 16); /* fwHeadFlags */
480 bytestream_put_le32(&riff_extradata, 0); /* dwPTSLow */
481 bytestream_put_le32(&riff_extradata, 0); /* dwPTSHigh */
482 } else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
484 bytestream_put_le16(&riff_extradata, enc->frame_size); /* wSamplesPerBlock */
485 } else if(enc->extradata_size){
486 riff_extradata_start= enc->extradata;
487 riff_extradata= enc->extradata + enc->extradata_size;
488 hdrsize += enc->extradata_size;
490 if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */
492 avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */
493 avio_wl16(pb, bps); /* ValidBitsPerSample || SamplesPerBlock || Reserved */
494 avio_wl32(pb, enc->channel_layout); /* dwChannelMask */
495 avio_wl32(pb, enc->codec_tag); /* GUID + next 3 */
496 avio_wl32(pb, 0x00100000);
497 avio_wl32(pb, 0xAA000080);
498 avio_wl32(pb, 0x719B3800);
500 avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */
502 avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
511 /* BITMAPINFOHEADER header */
512 void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
514 avio_wl32(pb, 40 + enc->extradata_size); /* size */
515 avio_wl32(pb, enc->width);
516 //We always store RGB TopDown
517 avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height);
518 avio_wl16(pb, 1); /* planes */
520 avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */
521 /* compression type */
522 avio_wl32(pb, enc->codec_tag);
523 avio_wl32(pb, (enc->width * enc->height * (enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24)+7) / 8);
529 avio_write(pb, enc->extradata, enc->extradata_size);
531 if (!for_asf && enc->extradata_size & 1)
534 #endif //CONFIG_MUXERS
537 /* We could be given one of the three possible structures here:
538 * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
539 * is an expansion of the previous one with the fields added
540 * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
541 * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself
542 * an openended structure.
544 int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size)
549 codec->codec_type = AVMEDIA_TYPE_AUDIO;
550 codec->channels = avio_rl16(pb);
551 codec->sample_rate = avio_rl32(pb);
552 codec->bit_rate = avio_rl32(pb) * 8;
553 codec->block_align = avio_rl16(pb);
554 if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */
555 codec->bits_per_coded_sample = 8;
557 codec->bits_per_coded_sample = avio_rl16(pb);
559 codec->codec_tag = 0;
561 codec->codec_tag = id;
562 codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample);
564 if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */
565 int cbSize = avio_rl16(pb); /* cbSize */
567 cbSize = FFMIN(size, cbSize);
568 if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
569 ff_asf_guid subformat;
570 codec->bits_per_coded_sample = avio_rl16(pb);
571 codec->channel_layout = avio_rl32(pb); /* dwChannelMask */
572 ff_get_guid(pb, &subformat);
573 if (!memcmp(subformat + 4, (const uint8_t[]){FF_MEDIASUBTYPE_BASE_GUID}, 12)) {
574 codec->codec_tag = AV_RL32(subformat);
575 codec->codec_id = ff_wav_codec_get_id(codec->codec_tag, codec->bits_per_coded_sample);
577 codec->codec_id = ff_codec_guid_get_id(ff_codec_wav_guids, subformat);
578 if (!codec->codec_id)
579 av_log(codec, AV_LOG_WARNING, "unknown subformat:"FF_PRI_GUID"\n", FF_ARG_GUID(subformat));
584 codec->extradata_size = cbSize;
586 av_free(codec->extradata);
587 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
588 if (!codec->extradata)
589 return AVERROR(ENOMEM);
590 avio_read(pb, codec->extradata, codec->extradata_size);
594 /* It is possible for the chunk to contain garbage at the end */
598 if (codec->codec_id == CODEC_ID_AAC_LATM) {
599 /* channels and sample_rate values are those prior to applying SBR and/or PS */
601 codec->sample_rate = 0;
603 /* override bits_per_coded_sample for G.726 */
604 if (codec->codec_id == CODEC_ID_ADPCM_G726)
605 codec->bits_per_coded_sample = codec->bit_rate / codec->sample_rate;
611 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps)
614 id = ff_codec_get_id(ff_codec_wav_tags, tag);
617 /* handle specific u8 codec */
618 if (id == CODEC_ID_PCM_S16LE && bps == 8)
619 id = CODEC_ID_PCM_U8;
620 if (id == CODEC_ID_PCM_S16LE && bps == 24)
621 id = CODEC_ID_PCM_S24LE;
622 if (id == CODEC_ID_PCM_S16LE && bps == 32)
623 id = CODEC_ID_PCM_S32LE;
624 if (id == CODEC_ID_PCM_F32LE && bps == 64)
625 id = CODEC_ID_PCM_F64LE;
626 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
627 id = CODEC_ID_PCM_ZORK;
631 int ff_get_bmp_header(AVIOContext *pb, AVStream *st)
634 avio_rl32(pb); /* size */
635 st->codec->width = avio_rl32(pb);
636 st->codec->height = (int32_t)avio_rl32(pb);
637 avio_rl16(pb); /* planes */
638 st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */
639 tag1 = avio_rl32(pb);
640 avio_rl32(pb); /* ImageSize */
641 avio_rl32(pb); /* XPelsPerMeter */
642 avio_rl32(pb); /* YPelsPerMeter */
643 avio_rl32(pb); /* ClrUsed */
644 avio_rl32(pb); /* ClrImportant */
647 #endif // CONFIG_DEMUXERS
649 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
653 *au_ssize= stream->block_align;
654 if(stream->frame_size && stream->sample_rate){
655 *au_scale=stream->frame_size;
656 *au_rate= stream->sample_rate;
657 }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
658 stream->codec_type == AVMEDIA_TYPE_DATA ||
659 stream->codec_type == AVMEDIA_TYPE_SUBTITLE){
660 *au_scale= stream->time_base.num;
661 *au_rate = stream->time_base.den;
663 *au_scale= stream->block_align ? stream->block_align*8 : 8;
664 *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
666 gcd= av_gcd(*au_scale, *au_rate);
671 void ff_get_guid(AVIOContext *s, ff_asf_guid *g)
673 assert(sizeof(*g) == 16);
674 avio_read(s, *g, sizeof(*g));
677 enum CodecID ff_codec_guid_get_id(const AVCodecGuid *guids, ff_asf_guid guid)
680 for (i = 0; guids[i].id != CODEC_ID_NONE; i++) {
681 if (!ff_guidcmp(guids[i].guid, guid))
684 return CODEC_ID_NONE;
687 int ff_read_riff_info(AVFormatContext *s, int64_t size)
689 int64_t start, end, cur;
690 AVIOContext *pb = s->pb;
692 start = avio_tell(pb);
695 while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) {
701 chunk_code = avio_rl32(pb);
702 chunk_size = avio_rl32(pb);
703 if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) {
704 av_log(s, AV_LOG_ERROR, "too big INFO subchunk\n");
705 return AVERROR_INVALIDDATA;
708 chunk_size += (chunk_size & 1);
710 value = av_malloc(chunk_size + 1);
712 av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n");
713 return AVERROR(ENOMEM);
716 AV_WL32(key, chunk_code);
718 if (avio_read(pb, value, chunk_size) != chunk_size) {
720 av_log(s, AV_LOG_ERROR, "premature end of file while reading INFO tag\n");
721 return AVERROR_INVALIDDATA;
724 value[chunk_size] = 0;
726 av_dict_set(&s->metadata, key, value, AV_DICT_DONT_STRDUP_VAL);