Drop the deprecated av_init_random() at the next libavutil major bump.
[libav.git] / libavformat / riff.c
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1/*
2 * RIFF codec tags
3 * Copyright (c) 2000 Fabrice Bellard.
4 *
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
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8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
9d9f4119 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
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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
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
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19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
245976da 22#include "libavcodec/avcodec.h"
9d9f4119 23#include "avformat.h"
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24#include "riff.h"
25
26/* Note: when encoding, the first matching tag is used, so order is
27 important if multiple tags possible for a given codec. */
7caf0cc6 28const AVCodecTag codec_bmp_tags[] = {
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29 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
30 { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
31 { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
32 { CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
33 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
34 { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
ab0b2e55 35 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
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36 { CODEC_ID_H263, MKTAG('X', '2', '6', '3') },
37 { CODEC_ID_H263, MKTAG('L', '2', '6', '3') },
62d6f73e 38 { CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') },
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39 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
40 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */
41 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
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42 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
43 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
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44 { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') },
45 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
46 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') },
47 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
48 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
49 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
36b0782e 50 { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */
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51 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
52 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
53 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
54 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
55 { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
56 { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
ab0b2e55 57 { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
1b46683c 58 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') },
26ae363e 59 { CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') },
4a49a5fd 60 { CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') },
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61 { CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') },
62 { CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') },
63 { CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') },
64 { CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') },
65 { CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') },
66 { CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') },
67 { CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') },
b8cf645b 68 { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') },
26e8d342 69 { CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */
62d6f73e 70 { CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') },
41b0534a 71 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') },
4a49a5fd 72 { CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') },
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73 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') }, /* default signature when using MSMPEG4 */
74 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
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75 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
76 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
77 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
78 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
4a49a5fd 79 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') },
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80 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
81 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
82 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
ab0b2e55 83 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
ab0b2e55 84 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
ab0b2e55 85 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
26e8d342 86 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') },
ab0b2e55 87 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
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88 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
89 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
90 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
91 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
92 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
93 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') },
94 { CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */
26e8d342 95 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
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96 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
97 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
98 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
99 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
100 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
26e8d342 101 { CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') },
ab0b2e55 102 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
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103 { CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) },
104 { CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) },
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105 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
106 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') },
6cffaea8 107 { CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */
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108 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
109 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
26e8d342 110 { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') },
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111 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
112 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */
113 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */
114 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */
115 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') },
116 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') },
117 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') },
65fec2d9 118 { CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') },
a9cf309b 119 { CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') },
ed0879ed 120 { CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */
54f8abde 121 { CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */
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122 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
123 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
124 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
36b0782e 125 { CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) },
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126 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
127 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
128 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
129 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
130 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
131 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
132 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
133 { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') },
134 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
135 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
136 { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') },
137 { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') },
138 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
139 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
140 { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
141 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
142 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
143 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
144 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
145 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
146 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
147 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
148 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
e2260faa 149 { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') },
ab0b2e55 150 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
36b0782e 151 { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) },
b30cb420 152 { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) },
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153 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
154 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
155 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
156 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
157 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
158 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
159 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
160 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
161 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
162 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
163 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
164 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
165 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
166 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
167 { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') },
168 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
169 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
170 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
171 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
172 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
173 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
174 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
175 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
176 { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
177 { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
178 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
179 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
180 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
181 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
182 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
183 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
184 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
185 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
186 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
187 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
188 { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
189 { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
190 { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
191 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
f86cd761 192 { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') },
ab0b2e55 193 { CODEC_ID_CLJR, MKTAG('c', 'l', 'j', 'r') },
eb64714c 194 { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
65fec2d9 195 { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') },
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196 { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') },
197 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') },
ab0b2e55 198 { CODEC_ID_NONE, 0 }
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199};
200
7caf0cc6 201const AVCodecTag codec_wav_tags[] = {
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202 { CODEC_ID_PCM_S16LE, 0x0001 },
203 { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */
204 { CODEC_ID_PCM_S24LE, 0x0001 },
205 { CODEC_ID_PCM_S32LE, 0x0001 },
206 { CODEC_ID_ADPCM_MS, 0x0002 },
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207 { CODEC_ID_PCM_F32LE, 0x0003 },
208 { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */
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209 { CODEC_ID_PCM_ALAW, 0x0006 },
210 { CODEC_ID_PCM_MULAW, 0x0007 },
211 { CODEC_ID_WMAVOICE, 0x000A },
212 { CODEC_ID_ADPCM_IMA_WAV, 0x0011 },
4e0e6888 213 { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */
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214 { CODEC_ID_ADPCM_YAMAHA, 0x0020 },
215 { CODEC_ID_TRUESPEECH, 0x0022 },
216 { CODEC_ID_GSM_MS, 0x0031 },
217 { CODEC_ID_ADPCM_G726, 0x0045 },
218 { CODEC_ID_MP2, 0x0050 },
219 { CODEC_ID_MP3, 0x0055 },
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220 { CODEC_ID_AMR_NB, 0x0057 },
221 { CODEC_ID_AMR_WB, 0x0058 },
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222 { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */
223 { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */
224 { CODEC_ID_VOXWARE, 0x0075 },
225 { CODEC_ID_AAC, 0x00ff },
faeedbbb 226 { CODEC_ID_SIPR, 0x0130 },
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227 { CODEC_ID_WMAV1, 0x0160 },
228 { CODEC_ID_WMAV2, 0x0161 },
229 { CODEC_ID_WMAPRO, 0x0162 },
800b9c24 230 { CODEC_ID_WMALOSSLESS, 0x0163 },
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231 { CODEC_ID_ADPCM_CT, 0x0200 },
232 { CODEC_ID_ATRAC3, 0x0270 },
233 { CODEC_ID_IMC, 0x0401 },
234 { CODEC_ID_AC3, 0x2000 },
235 { CODEC_ID_DTS, 0x2001 },
236 { CODEC_ID_SONIC, 0x2048 },
237 { CODEC_ID_SONIC_LS, 0x2048 },
238 { CODEC_ID_AAC, 0x706d },
6cffaea8 239 { CODEC_ID_AAC, 0x4143 },
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240 { CODEC_ID_FLAC, 0xF1AC },
241 { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' },
242 { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id?
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243
244 /* FIXME: All of the IDs below are not 16 bit and thus illegal. */
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245 // for NuppelVideo (nuv.c)
246 { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
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247 { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') },
248 { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
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249 { 0, 0 },
250};
251
b250f9c6 252#if CONFIG_MUXERS
bc5c918e 253int64_t start_tag(ByteIOContext *pb, const char *tag)
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254{
255 put_tag(pb, tag);
256 put_le32(pb, 0);
257 return url_ftell(pb);
258}
259
bc5c918e 260void end_tag(ByteIOContext *pb, int64_t start)
9d9f4119 261{
bc5c918e 262 int64_t pos;
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263
264 pos = url_ftell(pb);
265 url_fseek(pb, start - 4, SEEK_SET);
266 put_le32(pb, (uint32_t)(pos - start));
267 url_fseek(pb, pos, SEEK_SET);
268}
269
270/* WAVEFORMATEX header */
271/* returns the size or -1 on error */
272int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
273{
274 int bps, blkalign, bytespersec;
275 int hdrsize = 18;
276
277 if(!enc->codec_tag || enc->codec_tag > 0xffff)
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278 return -1;
279
280 put_le16(pb, enc->codec_tag);
281 put_le16(pb, enc->channels);
282 put_le32(pb, enc->sample_rate);
235a51ad 283 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
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284 bps = 0;
285 } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV || enc->codec_id == CODEC_ID_ADPCM_MS || enc->codec_id == CODEC_ID_ADPCM_G726 || enc->codec_id == CODEC_ID_ADPCM_YAMAHA) { //
286 bps = 4;
9d9f4119 287 } else {
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288 if (!(bps = av_get_bits_per_sample(enc->codec_id)))
289 bps = 16; // default to 16
9d9f4119 290 }
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291 if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
292 av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
9376710d 293 }
9d9f4119 294
52cf3954 295 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_AC3) {
755bfeab 296 blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly
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297 //blkalign = 144 * enc->bit_rate/enc->sample_rate;
298 } else if (enc->codec_id == CODEC_ID_ADPCM_G726) { //
299 blkalign = 1;
300 } else if (enc->block_align != 0) { /* specified by the codec */
301 blkalign = enc->block_align;
302 } else
303 blkalign = enc->channels*bps >> 3;
304 if (enc->codec_id == CODEC_ID_PCM_U8 ||
305 enc->codec_id == CODEC_ID_PCM_S24LE ||
306 enc->codec_id == CODEC_ID_PCM_S32LE ||
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307 enc->codec_id == CODEC_ID_PCM_F32LE ||
308 enc->codec_id == CODEC_ID_PCM_F64LE ||
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309 enc->codec_id == CODEC_ID_PCM_S16LE) {
310 bytespersec = enc->sample_rate * blkalign;
311 } else {
312 bytespersec = enc->bit_rate / 8;
313 }
314 put_le32(pb, bytespersec); /* bytes per second */
315 put_le16(pb, blkalign); /* block align */
316 put_le16(pb, bps); /* bits per sample */
317 if (enc->codec_id == CODEC_ID_MP3) {
318 put_le16(pb, 12); /* wav_extra_size */
319 hdrsize += 12;
320 put_le16(pb, 1); /* wID */
321 put_le32(pb, 2); /* fdwFlags */
322 put_le16(pb, 1152); /* nBlockSize */
323 put_le16(pb, 1); /* nFramesPerBlock */
324 put_le16(pb, 1393); /* nCodecDelay */
325 } else if (enc->codec_id == CODEC_ID_MP2) {
326 put_le16(pb, 22); /* wav_extra_size */
327 hdrsize += 22;
328 put_le16(pb, 2); /* fwHeadLayer */
329 put_le32(pb, enc->bit_rate); /* dwHeadBitrate */
330 put_le16(pb, enc->channels == 2 ? 1 : 8); /* fwHeadMode */
331 put_le16(pb, 0); /* fwHeadModeExt */
332 put_le16(pb, 1); /* wHeadEmphasis */
333 put_le16(pb, 16); /* fwHeadFlags */
334 put_le32(pb, 0); /* dwPTSLow */
335 put_le32(pb, 0); /* dwPTSHigh */
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336 } else if (enc->codec_id == CODEC_ID_GSM_MS) {
337 put_le16(pb, 2); /* wav_extra_size */
338 hdrsize += 2;
339 put_le16(pb, enc->frame_size); /* wSamplesPerBlock */
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340 } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
341 put_le16(pb, 2); /* wav_extra_size */
342 hdrsize += 2;
5b77a81a 343 put_le16(pb, enc->frame_size); /* wSamplesPerBlock */
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344 } else if(enc->extradata_size){
345 put_le16(pb, enc->extradata_size);
346 put_buffer(pb, enc->extradata, enc->extradata_size);
347 hdrsize += enc->extradata_size;
348 if(hdrsize&1){
349 hdrsize++;
350 put_byte(pb, 0);
351 }
352 } else {
353 hdrsize -= 2;
354 }
355
356 return hdrsize;
357}
358
359/* BITMAPINFOHEADER header */
7caf0cc6 360void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
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361{
362 put_le32(pb, 40 + enc->extradata_size); /* size */
363 put_le32(pb, enc->width);
364 put_le32(pb, enc->height);
365 put_le16(pb, 1); /* planes */
366
dd1c8f3e 367 put_le16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */
9d9f4119 368 /* compression type */
bb85077f 369 put_le32(pb, enc->codec_tag);
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370 put_le32(pb, enc->width * enc->height * 3);
371 put_le32(pb, 0);
372 put_le32(pb, 0);
373 put_le32(pb, 0);
374 put_le32(pb, 0);
375
376 put_buffer(pb, enc->extradata, enc->extradata_size);
377
378 if (enc->extradata_size & 1)
379 put_byte(pb, 0);
380}
381#endif //CONFIG_MUXERS
382
b250f9c6 383#if CONFIG_DEMUXERS
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384/* We could be given one of the three possible structures here:
385 * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure
386 * is an expansion of the previous one with the fields added
387 * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and
388 * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself
389 * an openended structure.
390 */
391void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size)
392{
393 int id;
394
395 id = get_le16(pb);
396 codec->codec_type = CODEC_TYPE_AUDIO;
397 codec->codec_tag = id;
398 codec->channels = get_le16(pb);
399 codec->sample_rate = get_le32(pb);
400 codec->bit_rate = get_le32(pb) * 8;
401 codec->block_align = get_le16(pb);
402 if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */
dd1c8f3e 403 codec->bits_per_coded_sample = 8;
9d9f4119 404 }else
dd1c8f3e 405 codec->bits_per_coded_sample = get_le16(pb);
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406 if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */
407 int cbSize = get_le16(pb); /* cbSize */
408 size -= 18;
409 cbSize = FFMIN(size, cbSize);
410 if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */
dd1c8f3e 411 codec->bits_per_coded_sample = get_le16(pb);
4fd71a0e 412 codec->channel_layout = get_le32(pb); /* dwChannelMask */
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413 id = get_le32(pb); /* 4 first bytes of GUID */
414 url_fskip(pb, 12); /* skip end of GUID */
415 cbSize -= 22;
416 size -= 22;
417 }
418 codec->extradata_size = cbSize;
419 if (cbSize > 0) {
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420 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
421 get_buffer(pb, codec->extradata, codec->extradata_size);
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422 size -= cbSize;
423 }
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424
425 /* It is possible for the chunk to contain garbage at the end */
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426 if (size > 0)
427 url_fskip(pb, size);
9d9f4119 428 }
dd1c8f3e 429 codec->codec_id = wav_codec_get_id(id, codec->bits_per_coded_sample);
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430}
431
432
9f2ace74 433enum CodecID wav_codec_get_id(unsigned int tag, int bps)
9d9f4119 434{
9f2ace74 435 enum CodecID id;
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436 id = codec_get_id(codec_wav_tags, tag);
437 if (id <= 0)
438 return id;
439 /* handle specific u8 codec */
440 if (id == CODEC_ID_PCM_S16LE && bps == 8)
441 id = CODEC_ID_PCM_U8;
442 if (id == CODEC_ID_PCM_S16LE && bps == 24)
443 id = CODEC_ID_PCM_S24LE;
444 if (id == CODEC_ID_PCM_S16LE && bps == 32)
445 id = CODEC_ID_PCM_S32LE;
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446 if (id == CODEC_ID_PCM_F32LE && bps == 64)
447 id = CODEC_ID_PCM_F64LE;
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448 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
449 id = CODEC_ID_PCM_ZORK;
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450 return id;
451}
452#endif // CONFIG_DEMUXERS
453
454void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
455{
456 int gcd;
457
458 *au_ssize= stream->block_align;
459 if(stream->frame_size && stream->sample_rate){
460 *au_scale=stream->frame_size;
461 *au_rate= stream->sample_rate;
462 }else if(stream->codec_type == CODEC_TYPE_VIDEO){
463 *au_scale= stream->time_base.num;
464 *au_rate = stream->time_base.den;
465 }else{
466 *au_scale= stream->block_align ? stream->block_align*8 : 8;
a7805e29 467 *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
9d9f4119 468 }
9ce6c138 469 gcd= av_gcd(*au_scale, *au_rate);
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470 *au_scale /= gcd;
471 *au_rate /= gcd;
472}