3 * Copyright (c) 2000 Fabrice Bellard
5 * This file is part of Libav.
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.
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.
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
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_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_ZEROCODEC
, MKTAG('Z', 'E', 'C', 'O') },
287 { CODEC_ID_MSS1
, MKTAG('M', 'S', 'S', '1') },
288 { CODEC_ID_MSA1
, MKTAG('M', 'S', 'A', '1') },
292 const AVCodecTag ff_codec_wav_tags
[] = {
293 { CODEC_ID_PCM_S16LE
, 0x0001 },
294 { CODEC_ID_PCM_U8
, 0x0001 }, /* must come after s16le in this list */
295 { CODEC_ID_PCM_S24LE
, 0x0001 },
296 { CODEC_ID_PCM_S32LE
, 0x0001 },
297 { CODEC_ID_ADPCM_MS
, 0x0002 },
298 { CODEC_ID_PCM_F32LE
, 0x0003 },
299 { CODEC_ID_PCM_F64LE
, 0x0003 }, /* must come after f32le in this list */
300 { CODEC_ID_PCM_ALAW
, 0x0006 },
301 { CODEC_ID_PCM_MULAW
, 0x0007 },
302 { CODEC_ID_WMAVOICE
, 0x000A },
303 { CODEC_ID_ADPCM_IMA_WAV
, 0x0011 },
304 { CODEC_ID_PCM_ZORK
, 0x0011 }, /* must come after adpcm_ima_wav in this list */
305 { CODEC_ID_ADPCM_YAMAHA
, 0x0020 },
306 { CODEC_ID_TRUESPEECH
, 0x0022 },
307 { CODEC_ID_GSM_MS
, 0x0031 },
308 { CODEC_ID_ADPCM_G726
, 0x0045 },
309 { CODEC_ID_MP2
, 0x0050 },
310 { CODEC_ID_MP3
, 0x0055 },
311 { CODEC_ID_AMR_NB
, 0x0057 },
312 { CODEC_ID_AMR_WB
, 0x0058 },
313 { CODEC_ID_ADPCM_IMA_DK4
, 0x0061 }, /* rogue format number */
314 { CODEC_ID_ADPCM_IMA_DK3
, 0x0062 }, /* rogue format number */
315 { CODEC_ID_ADPCM_IMA_WAV
, 0x0069 },
316 { CODEC_ID_VOXWARE
, 0x0075 },
317 { CODEC_ID_AAC
, 0x00ff },
318 { CODEC_ID_SIPR
, 0x0130 },
319 { CODEC_ID_WMAV1
, 0x0160 },
320 { CODEC_ID_WMAV2
, 0x0161 },
321 { CODEC_ID_WMAPRO
, 0x0162 },
322 { CODEC_ID_WMALOSSLESS
, 0x0163 },
323 { CODEC_ID_ADPCM_CT
, 0x0200 },
324 { CODEC_ID_ATRAC3
, 0x0270 },
325 { CODEC_ID_ADPCM_G722
, 0x028F },
326 { CODEC_ID_IMC
, 0x0401 },
327 { CODEC_ID_IAC
, 0x0402 },
328 { CODEC_ID_GSM_MS
, 0x1500 },
329 { CODEC_ID_TRUESPEECH
, 0x1501 },
330 { CODEC_ID_AAC
, 0x1600 }, /* ADTS AAC */
331 { CODEC_ID_AAC_LATM
, 0x1602 },
332 { CODEC_ID_AC3
, 0x2000 },
333 { CODEC_ID_DTS
, 0x2001 },
334 { CODEC_ID_PCM_MULAW
, 0x6c75 },
335 { CODEC_ID_AAC
, 0x706d },
336 { CODEC_ID_AAC
, 0x4143 },
337 { CODEC_ID_SPEEX
, 0xA109 },
338 { CODEC_ID_FLAC
, 0xF1AC },
339 { CODEC_ID_ADPCM_SWF
, ('S'<<8)+'F' },
340 { CODEC_ID_VORBIS
, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
342 /* FIXME: All of the IDs below are not 16 bit and thus illegal. */
343 // for NuppelVideo (nuv.c)
344 { CODEC_ID_PCM_S16LE
, MKTAG('R', 'A', 'W', 'A') },
345 { CODEC_ID_MP3
, MKTAG('L', 'A', 'M', 'E') },
346 { CODEC_ID_MP3
, MKTAG('M', 'P', '3', ' ') },
347 { CODEC_ID_NONE
, 0 },
350 const AVMetadataConv ff_riff_info_conv
[] = {
351 { "IART", "artist" },
352 { "ICMT", "comment" },
353 { "ICOP", "copyright" },
356 { "ILNG", "language" },
360 { "ISFT", "encoder" },
361 { "ITCH", "encoded_by"},
365 const char ff_riff_tags
[][5] = {
366 "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI",
367 "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD",
368 "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH",
373 int64_t ff_start_tag(AVIOContext
*pb
, const char *tag
)
375 ffio_wfourcc(pb
, tag
);
377 return avio_tell(pb
);
380 void ff_end_tag(AVIOContext
*pb
, int64_t start
)
385 avio_seek(pb
, start
- 4, SEEK_SET
);
386 avio_wl32(pb
, (uint32_t)(pos
- start
));
387 avio_seek(pb
, pos
, SEEK_SET
);
390 /* WAVEFORMATEX header */
391 /* returns the size or -1 on error */
392 int ff_put_wav_header(AVIOContext
*pb
, AVCodecContext
*enc
)
394 int bps
, blkalign
, bytespersec
, frame_size
;
396 int waveformatextensible
;
398 uint8_t *riff_extradata
= temp
;
399 uint8_t *riff_extradata_start
= temp
;
401 if(!enc
->codec_tag
|| enc
->codec_tag
> 0xffff)
404 /* We use the known constant frame size for the codec if known, otherwise
405 fallback to using AVCodecContext.frame_size, which is not as reliable
406 for indicating packet duration */
407 frame_size
= av_get_audio_frame_duration(enc
, 0);
409 frame_size
= enc
->frame_size
;
411 waveformatextensible
= (enc
->channels
> 2 && enc
->channel_layout
)
412 || enc
->sample_rate
> 48000
413 || av_get_bits_per_sample(enc
->codec_id
) > 16;
415 if (waveformatextensible
) {
416 avio_wl16(pb
, 0xfffe);
418 avio_wl16(pb
, enc
->codec_tag
);
420 avio_wl16(pb
, enc
->channels
);
421 avio_wl32(pb
, enc
->sample_rate
);
422 if (enc
->codec_id
== CODEC_ID_MP2
|| enc
->codec_id
== CODEC_ID_MP3
|| enc
->codec_id
== CODEC_ID_GSM_MS
) {
425 if (!(bps
= av_get_bits_per_sample(enc
->codec_id
))) {
426 if (enc
->bits_per_coded_sample
)
427 bps
= enc
->bits_per_coded_sample
;
429 bps
= 16; // default to 16
432 if(bps
!= enc
->bits_per_coded_sample
&& enc
->bits_per_coded_sample
){
433 av_log(enc
, AV_LOG_WARNING
, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc
->bits_per_coded_sample
, bps
);
436 if (enc
->codec_id
== CODEC_ID_MP2
|| enc
->codec_id
== CODEC_ID_MP3
) {
437 /* this is wrong, but it seems many demuxers do not work if this is set
439 blkalign
= frame_size
;
440 //blkalign = 144 * enc->bit_rate/enc->sample_rate;
441 } else if (enc
->codec_id
== CODEC_ID_AC3
) {
442 blkalign
= 3840; //maximum bytes per frame
443 } else if (enc
->block_align
!= 0) { /* specified by the codec */
444 blkalign
= enc
->block_align
;
446 blkalign
= bps
* enc
->channels
/ av_gcd(8, bps
);
447 if (enc
->codec_id
== CODEC_ID_PCM_U8
||
448 enc
->codec_id
== CODEC_ID_PCM_S24LE
||
449 enc
->codec_id
== CODEC_ID_PCM_S32LE
||
450 enc
->codec_id
== CODEC_ID_PCM_F32LE
||
451 enc
->codec_id
== CODEC_ID_PCM_F64LE
||
452 enc
->codec_id
== CODEC_ID_PCM_S16LE
) {
453 bytespersec
= enc
->sample_rate
* blkalign
;
455 bytespersec
= enc
->bit_rate
/ 8;
457 avio_wl32(pb
, bytespersec
); /* bytes per second */
458 avio_wl16(pb
, blkalign
); /* block align */
459 avio_wl16(pb
, bps
); /* bits per sample */
460 if (enc
->codec_id
== CODEC_ID_MP3
) {
462 bytestream_put_le16(&riff_extradata
, 1); /* wID */
463 bytestream_put_le32(&riff_extradata
, 2); /* fdwFlags */
464 bytestream_put_le16(&riff_extradata
, 1152); /* nBlockSize */
465 bytestream_put_le16(&riff_extradata
, 1); /* nFramesPerBlock */
466 bytestream_put_le16(&riff_extradata
, 1393); /* nCodecDelay */
467 } else if (enc
->codec_id
== CODEC_ID_MP2
) {
469 bytestream_put_le16(&riff_extradata
, 2); /* fwHeadLayer */
470 bytestream_put_le32(&riff_extradata
, enc
->bit_rate
); /* dwHeadBitrate */
471 bytestream_put_le16(&riff_extradata
, enc
->channels
== 2 ?
1 : 8); /* fwHeadMode */
472 bytestream_put_le16(&riff_extradata
, 0); /* fwHeadModeExt */
473 bytestream_put_le16(&riff_extradata
, 1); /* wHeadEmphasis */
474 bytestream_put_le16(&riff_extradata
, 16); /* fwHeadFlags */
475 bytestream_put_le32(&riff_extradata
, 0); /* dwPTSLow */
476 bytestream_put_le32(&riff_extradata
, 0); /* dwPTSHigh */
477 } else if (enc
->codec_id
== CODEC_ID_GSM_MS
|| enc
->codec_id
== CODEC_ID_ADPCM_IMA_WAV
) {
479 bytestream_put_le16(&riff_extradata
, frame_size
); /* wSamplesPerBlock */
480 } else if(enc
->extradata_size
){
481 riff_extradata_start
= enc
->extradata
;
482 riff_extradata
= enc
->extradata
+ enc
->extradata_size
;
483 hdrsize
+= enc
->extradata_size
;
485 if(waveformatextensible
) { /* write WAVEFORMATEXTENSIBLE extensions */
487 avio_wl16(pb
, riff_extradata
- riff_extradata_start
+ 22); /* 22 is WAVEFORMATEXTENSIBLE size */
488 avio_wl16(pb
, bps
); /* ValidBitsPerSample || SamplesPerBlock || Reserved */
489 avio_wl32(pb
, enc
->channel_layout
); /* dwChannelMask */
490 avio_wl32(pb
, enc
->codec_tag
); /* GUID + next 3 */
491 avio_wl32(pb
, 0x00100000);
492 avio_wl32(pb
, 0xAA000080);
493 avio_wl32(pb
, 0x719B3800);
495 avio_wl16(pb
, riff_extradata
- riff_extradata_start
); /* cbSize */
497 avio_write(pb
, riff_extradata_start
, riff_extradata
- riff_extradata_start
);
506 /* BITMAPINFOHEADER header */
507 void ff_put_bmp_header(AVIOContext
*pb
, AVCodecContext
*enc
, const AVCodecTag
*tags
, int for_asf
)
509 avio_wl32(pb
, 40 + enc
->extradata_size
); /* size */
510 avio_wl32(pb
, enc
->width
);
511 //We always store RGB TopDown
512 avio_wl32(pb
, enc
->codec_tag ? enc
->height
: -enc
->height
);
513 avio_wl16(pb
, 1); /* planes */
515 avio_wl16(pb
, enc
->bits_per_coded_sample ? enc
->bits_per_coded_sample
: 24); /* depth */
516 /* compression type */
517 avio_wl32(pb
, enc
->codec_tag
);
518 avio_wl32(pb
, enc
->width
* enc
->height
* 3);
524 avio_write(pb
, enc
->extradata
, enc
->extradata_size
);
526 if (!for_asf
&& enc
->extradata_size
& 1)
529 #endif //CONFIG_MUXERS
532 /* We could be given one of the three possible structures here:
533 * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
534 * is an expansion of the previous one with the fields added
535 * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
536 * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself
537 * an openended structure.
539 int ff_get_wav_header(AVIOContext
*pb
, AVCodecContext
*codec
, int size
)
544 codec
->codec_type
= AVMEDIA_TYPE_AUDIO
;
545 codec
->codec_tag
= id
;
546 codec
->channels
= avio_rl16(pb
);
547 codec
->sample_rate
= avio_rl32(pb
);
548 codec
->bit_rate
= avio_rl32(pb
) * 8;
549 codec
->block_align
= avio_rl16(pb
);
550 if (size
== 14) { /* We're dealing with plain vanilla WAVEFORMAT */
551 codec
->bits_per_coded_sample
= 8;
553 codec
->bits_per_coded_sample
= avio_rl16(pb
);
554 if (size
>= 18) { /* We're obviously dealing with WAVEFORMATEX */
555 int cbSize
= avio_rl16(pb
); /* cbSize */
557 cbSize
= FFMIN(size
, cbSize
);
558 if (cbSize
>= 22 && id
== 0xfffe) { /* WAVEFORMATEXTENSIBLE */
559 codec
->bits_per_coded_sample
= avio_rl16(pb
);
560 codec
->channel_layout
= avio_rl32(pb
); /* dwChannelMask */
561 id
= avio_rl32(pb
); /* 4 first bytes of GUID */
562 avio_skip(pb
, 12); /* skip end of GUID */
566 codec
->extradata_size
= cbSize
;
568 av_free(codec
->extradata
);
569 codec
->extradata
= av_mallocz(codec
->extradata_size
+ FF_INPUT_BUFFER_PADDING_SIZE
);
570 if (!codec
->extradata
)
571 return AVERROR(ENOMEM
);
572 avio_read(pb
, codec
->extradata
, codec
->extradata_size
);
576 /* It is possible for the chunk to contain garbage at the end */
580 codec
->codec_id
= ff_wav_codec_get_id(id
, codec
->bits_per_coded_sample
);
581 if (codec
->codec_id
== CODEC_ID_AAC_LATM
) {
582 /* channels and sample_rate values are those prior to applying SBR and/or PS */
584 codec
->sample_rate
= 0;
586 /* override bits_per_coded_sample for G.726 */
587 if (codec
->codec_id
== CODEC_ID_ADPCM_G726
)
588 codec
->bits_per_coded_sample
= codec
->bit_rate
/ codec
->sample_rate
;
594 enum CodecID
ff_wav_codec_get_id(unsigned int tag
, int bps
)
597 id
= ff_codec_get_id(ff_codec_wav_tags
, tag
);
600 /* handle specific u8 codec */
601 if (id
== CODEC_ID_PCM_S16LE
&& bps
== 8)
602 id
= CODEC_ID_PCM_U8
;
603 if (id
== CODEC_ID_PCM_S16LE
&& bps
== 24)
604 id
= CODEC_ID_PCM_S24LE
;
605 if (id
== CODEC_ID_PCM_S16LE
&& bps
== 32)
606 id
= CODEC_ID_PCM_S32LE
;
607 if (id
== CODEC_ID_PCM_F32LE
&& bps
== 64)
608 id
= CODEC_ID_PCM_F64LE
;
609 if (id
== CODEC_ID_ADPCM_IMA_WAV
&& bps
== 8)
610 id
= CODEC_ID_PCM_ZORK
;
614 int ff_get_bmp_header(AVIOContext
*pb
, AVStream
*st
)
617 avio_rl32(pb
); /* size */
618 st
->codec
->width
= avio_rl32(pb
);
619 st
->codec
->height
= (int32_t)avio_rl32(pb
);
620 avio_rl16(pb
); /* planes */
621 st
->codec
->bits_per_coded_sample
= avio_rl16(pb
); /* depth */
622 tag1
= avio_rl32(pb
);
623 avio_rl32(pb
); /* ImageSize */
624 avio_rl32(pb
); /* XPelsPerMeter */
625 avio_rl32(pb
); /* YPelsPerMeter */
626 avio_rl32(pb
); /* ClrUsed */
627 avio_rl32(pb
); /* ClrImportant */
630 #endif // CONFIG_DEMUXERS
632 void ff_parse_specific_params(AVCodecContext
*stream
, int *au_rate
, int *au_ssize
, int *au_scale
)
635 int audio_frame_size
;
637 /* We use the known constant frame size for the codec if known, otherwise
638 fallback to using AVCodecContext.frame_size, which is not as reliable
639 for indicating packet duration */
640 audio_frame_size
= av_get_audio_frame_duration(stream
, 0);
641 if (!audio_frame_size
)
642 audio_frame_size
= stream
->frame_size
;
644 *au_ssize
= stream
->block_align
;
645 if (audio_frame_size
&& stream
->sample_rate
) {
646 *au_scale
= audio_frame_size
;
647 *au_rate
= stream
->sample_rate
;
648 }else if(stream
->codec_type
== AVMEDIA_TYPE_VIDEO
||
649 stream
->codec_type
== AVMEDIA_TYPE_DATA
||
650 stream
->codec_type
== AVMEDIA_TYPE_SUBTITLE
){
651 *au_scale
= stream
->time_base
.num
;
652 *au_rate
= stream
->time_base
.den
;
654 *au_scale
= stream
->block_align ? stream
->block_align
*8 : 8;
655 *au_rate
= stream
->bit_rate ? stream
->bit_rate
: 8*stream
->sample_rate
;
657 gcd
= av_gcd(*au_scale
, *au_rate
);
662 int ff_read_riff_info(AVFormatContext
*s
, int64_t size
)
664 int64_t start
, end
, cur
;
665 AVIOContext
*pb
= s
->pb
;
667 start
= avio_tell(pb
);
670 while ((cur
= avio_tell(pb
)) >= 0 && cur
<= end
- 8 /* = tag + size */) {
676 chunk_code
= avio_rl32(pb
);
677 chunk_size
= avio_rl32(pb
);
678 if (chunk_size
> end
|| end
- chunk_size
< cur
|| chunk_size
== UINT_MAX
) {
679 av_log(s
, AV_LOG_ERROR
, "too big INFO subchunk\n");
680 return AVERROR_INVALIDDATA
;
683 chunk_size
+= (chunk_size
& 1);
685 value
= av_malloc(chunk_size
+ 1);
687 av_log(s
, AV_LOG_ERROR
, "out of memory, unable to read INFO tag\n");
688 return AVERROR(ENOMEM
);
691 AV_WL32(key
, chunk_code
);
693 if (avio_read(pb
, value
, chunk_size
) != chunk_size
) {
695 av_log(s
, AV_LOG_ERROR
, "premature end of file while reading INFO tag\n");
696 return AVERROR_INVALIDDATA
;
699 value
[chunk_size
] = 0;
701 av_dict_set(&s
->metadata
, key
, value
, AV_DICT_DONT_STRDUP_VAL
);