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00022 #include "libavcodec/avcodec.h"
00023 #include "avformat.h"
00024 #include "riff.h"
00025 #include "libavcodec/bytestream.h"
00026
00027
00028
00029 const AVCodecTag ff_codec_bmp_tags[] = {
00030 { CODEC_ID_H264, MKTAG('H', '2', '6', '4') },
00031 { CODEC_ID_H264, MKTAG('h', '2', '6', '4') },
00032 { CODEC_ID_H264, MKTAG('X', '2', '6', '4') },
00033 { CODEC_ID_H264, MKTAG('x', '2', '6', '4') },
00034 { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') },
00035 { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') },
00036 { CODEC_ID_H263, MKTAG('H', '2', '6', '3') },
00037 { CODEC_ID_H263, MKTAG('X', '2', '6', '3') },
00038 { CODEC_ID_H263, MKTAG('T', '2', '6', '3') },
00039 { CODEC_ID_H263, MKTAG('L', '2', '6', '3') },
00040 { CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') },
00041 { CODEC_ID_H263, MKTAG('Z', 'y', 'G', 'o') },
00042 { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') },
00043 { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') },
00044 { CODEC_ID_H261, MKTAG('H', '2', '6', '1') },
00045 { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') },
00046 { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') },
00047 { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') },
00048 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') },
00049 { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') },
00050 { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') },
00051 { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') },
00052 { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') },
00053 { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) },
00054 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') },
00055 { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') },
00056 { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') },
00057 { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') },
00058 { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') },
00059 { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') },
00060 { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') },
00061 { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') },
00062 { CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') },
00063 { CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') },
00064 { CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') },
00065 { CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') },
00066 { CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') },
00067 { CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') },
00068 { CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') },
00069 { CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') },
00070 { CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') },
00071 { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') },
00072 { CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') },
00073 { CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') },
00074 { CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') },
00075 { CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') },
00076 { CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') },
00077 { CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') },
00078 { CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') },
00079 { CODEC_ID_MPEG4, MKTAG('S', 'N', '4', '0') },
00080 { CODEC_ID_MPEG4, MKTAG('V', 'S', 'P', 'X') },
00081 { CODEC_ID_MPEG4, MKTAG('U', 'L', 'D', 'X') },
00082 { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'V') },
00083 { CODEC_ID_MPEG4, MKTAG('S', 'I', 'P', 'P') },
00084 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') },
00085 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') },
00086 { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') },
00087 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') },
00088 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') },
00089 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') },
00090 { CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') },
00091 { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') },
00092 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') },
00093 { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') },
00094 { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') },
00095 { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') },
00096 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') },
00097 { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') },
00098 { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') },
00099 { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') },
00100 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') },
00101 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') },
00102 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
00103 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') },
00104 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') },
00105 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') },
00106 { CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') },
00107 { CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') },
00108 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') },
00109 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 's') },
00110 { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') },
00111 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') },
00112 { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') },
00113 { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') },
00114 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') },
00115 { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') },
00116 { CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') },
00117 { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') },
00118 { CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) },
00119 { CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) },
00120 { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 16) },
00121 { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') },
00122 { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') },
00123 { CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') },
00124 { CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') },
00125 { CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') },
00126 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') },
00127 { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') },
00128 { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') },
00129 { CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') },
00130 { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') },
00131 { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') },
00132 { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') },
00133 { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') },
00134 { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') },
00135 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') },
00136 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') },
00137 { CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') },
00138 { CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') },
00139 { CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') },
00140 { CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') },
00141 { CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') },
00142 { CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') },
00143 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '1') },
00144 { CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '2') },
00145 { CODEC_ID_MJPEG, MKTAG('M', 'T', 'S', 'J') },
00146 { CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') },
00147 { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') },
00148 { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') },
00149 { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') },
00150 { CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) },
00151 { CODEC_ID_RAWVIDEO, MKTAG( 3 , 0 , 0 , 0 ) },
00152 { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') },
00153 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') },
00154 { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') },
00155 { CODEC_ID_RAWVIDEO, MKTAG('V', '4', '2', '2') },
00156 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'N', 'V') },
00157 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'V') },
00158 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'N', 'Y') },
00159 { CODEC_ID_RAWVIDEO, MKTAG('u', 'y', 'v', '1') },
00160 { CODEC_ID_RAWVIDEO, MKTAG('2', 'V', 'u', '1') },
00161 { CODEC_ID_RAWVIDEO, MKTAG('2', 'v', 'u', 'y') },
00162 { CODEC_ID_RAWVIDEO, MKTAG('P', '4', '2', '2') },
00163 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') },
00164 { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') },
00165 { CODEC_ID_RAWVIDEO, MKTAG('V', 'Y', 'U', 'Y') },
00166 { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') },
00167 { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') },
00168 { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') },
00169 { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') },
00170 { CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') },
00171 { CODEC_ID_FRWU, MKTAG('F', 'R', 'W', 'U') },
00172 { CODEC_ID_R210, MKTAG('r', '2', '1', '0') },
00173 { CODEC_ID_V210, MKTAG('v', '2', '1', '0') },
00174 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') },
00175 { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') },
00176 { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') },
00177 { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') },
00178 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
00179 { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
00180 { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
00181 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
00182 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
00183 { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
00184 { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') },
00185 { CODEC_ID_VP6F, MKTAG('F', 'L', 'V', '4') },
00186 { CODEC_ID_VP8, MKTAG('V', 'P', '8', '0') },
00187 { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') },
00188 { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') },
00189 { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') },
00190 { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') },
00191 { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') },
00192 { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') },
00193 { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') },
00194 { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) },
00195 { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) },
00196 { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') },
00197 { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') },
00198 { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') },
00199 { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') },
00200 { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') },
00201 { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') },
00202 { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') },
00203 { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') },
00204 { CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') },
00205 { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') },
00206 { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') },
00207 { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') },
00208 { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') },
00209 { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') },
00210 { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') },
00211 { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') },
00212 { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') },
00213 { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') },
00214 { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') },
00215 { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') },
00216 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') },
00217 { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') },
00218 { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') },
00219 { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') },
00220 { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') },
00221 { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') },
00222 { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') },
00223 { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') },
00224 { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') },
00225 { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') },
00226 { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') },
00227 { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') },
00228 { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') },
00229 { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') },
00230 { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') },
00231 { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') },
00232 { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') },
00233 { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') },
00234 { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') },
00235 { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') },
00236 { CODEC_ID_PNG, MKTAG('P', 'N', 'G', '1') },
00237 { CODEC_ID_CLJR, MKTAG('c', 'l', 'j', 'r') },
00238 { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') },
00239 { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') },
00240 { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') },
00241 { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') },
00242 { CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') },
00243 { CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') },
00244 { CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') },
00245 { CODEC_ID_DPX, MKTAG('d', 'p', 'x', ' ') },
00246 { CODEC_ID_KGV1, MKTAG('K', 'G', 'V', '1') },
00247 { CODEC_ID_NONE, 0 }
00248 };
00249
00250 const AVCodecTag ff_codec_wav_tags[] = {
00251 { CODEC_ID_PCM_S16LE, 0x0001 },
00252 { CODEC_ID_PCM_U8, 0x0001 },
00253 { CODEC_ID_PCM_S24LE, 0x0001 },
00254 { CODEC_ID_PCM_S32LE, 0x0001 },
00255 { CODEC_ID_ADPCM_MS, 0x0002 },
00256 { CODEC_ID_PCM_F32LE, 0x0003 },
00257 { CODEC_ID_PCM_F64LE, 0x0003 },
00258 { CODEC_ID_PCM_ALAW, 0x0006 },
00259 { CODEC_ID_PCM_MULAW, 0x0007 },
00260 { CODEC_ID_WMAVOICE, 0x000A },
00261 { CODEC_ID_ADPCM_IMA_WAV, 0x0011 },
00262 { CODEC_ID_PCM_ZORK, 0x0011 },
00263 { CODEC_ID_ADPCM_YAMAHA, 0x0020 },
00264 { CODEC_ID_TRUESPEECH, 0x0022 },
00265 { CODEC_ID_GSM_MS, 0x0031 },
00266 { CODEC_ID_ADPCM_G726, 0x0045 },
00267 { CODEC_ID_MP2, 0x0050 },
00268 { CODEC_ID_MP3, 0x0055 },
00269 { CODEC_ID_AMR_NB, 0x0057 },
00270 { CODEC_ID_AMR_WB, 0x0058 },
00271 { CODEC_ID_ADPCM_IMA_DK4, 0x0061 },
00272 { CODEC_ID_ADPCM_IMA_DK3, 0x0062 },
00273 { CODEC_ID_ADPCM_IMA_WAV, 0x0069 },
00274 { CODEC_ID_VOXWARE, 0x0075 },
00275 { CODEC_ID_AAC, 0x00ff },
00276 { CODEC_ID_SIPR, 0x0130 },
00277 { CODEC_ID_WMAV1, 0x0160 },
00278 { CODEC_ID_WMAV2, 0x0161 },
00279 { CODEC_ID_WMAPRO, 0x0162 },
00280 { CODEC_ID_WMALOSSLESS, 0x0163 },
00281 { CODEC_ID_ADPCM_CT, 0x0200 },
00282 { CODEC_ID_ATRAC3, 0x0270 },
00283 { CODEC_ID_IMC, 0x0401 },
00284 { CODEC_ID_GSM_MS, 0x1500 },
00285 { CODEC_ID_TRUESPEECH, 0x1501 },
00286 { CODEC_ID_AC3, 0x2000 },
00287 { CODEC_ID_DTS, 0x2001 },
00288 { CODEC_ID_SONIC, 0x2048 },
00289 { CODEC_ID_SONIC_LS, 0x2048 },
00290 { CODEC_ID_PCM_MULAW, 0x6c75 },
00291 { CODEC_ID_AAC, 0x706d },
00292 { CODEC_ID_AAC, 0x4143 },
00293 { CODEC_ID_FLAC, 0xF1AC },
00294 { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' },
00295 { CODEC_ID_VORBIS, ('V'<<8)+'o' },
00296
00297
00298
00299 { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') },
00300 { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') },
00301 { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
00302 { CODEC_ID_NONE, 0 },
00303 };
00304
00305 #if CONFIG_MUXERS
00306 int64_t ff_start_tag(ByteIOContext *pb, const char *tag)
00307 {
00308 put_tag(pb, tag);
00309 put_le32(pb, 0);
00310 return url_ftell(pb);
00311 }
00312
00313 void ff_end_tag(ByteIOContext *pb, int64_t start)
00314 {
00315 int64_t pos;
00316
00317 pos = url_ftell(pb);
00318 url_fseek(pb, start - 4, SEEK_SET);
00319 put_le32(pb, (uint32_t)(pos - start));
00320 url_fseek(pb, pos, SEEK_SET);
00321 }
00322
00323
00324
00325 int ff_put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
00326 {
00327 int bps, blkalign, bytespersec;
00328 int hdrsize = 18;
00329 int waveformatextensible;
00330 uint8_t temp[256];
00331 uint8_t *riff_extradata= temp;
00332 uint8_t *riff_extradata_start= temp;
00333
00334 if(!enc->codec_tag || enc->codec_tag > 0xffff)
00335 return -1;
00336 waveformatextensible = (enc->channels > 2 && enc->channel_layout)
00337 || enc->sample_rate > 48000
00338 || av_get_bits_per_sample(enc->codec_id) > 16;
00339
00340 if (waveformatextensible) {
00341 put_le16(pb, 0xfffe);
00342 } else {
00343 put_le16(pb, enc->codec_tag);
00344 }
00345 put_le16(pb, enc->channels);
00346 put_le32(pb, enc->sample_rate);
00347 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) {
00348 bps = 0;
00349 } else if (enc->codec_id == CODEC_ID_ADPCM_G726) {
00350 bps = 4;
00351 } else {
00352 if (!(bps = av_get_bits_per_sample(enc->codec_id)))
00353 bps = 16;
00354 }
00355 if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){
00356 av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps);
00357 }
00358
00359 if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_AC3) {
00360 blkalign = enc->frame_size;
00361
00362 } else if (enc->codec_id == CODEC_ID_ADPCM_G726) {
00363 blkalign = 1;
00364 } else if (enc->block_align != 0) {
00365 blkalign = enc->block_align;
00366 } else
00367 blkalign = enc->channels*bps >> 3;
00368 if (enc->codec_id == CODEC_ID_PCM_U8 ||
00369 enc->codec_id == CODEC_ID_PCM_S24LE ||
00370 enc->codec_id == CODEC_ID_PCM_S32LE ||
00371 enc->codec_id == CODEC_ID_PCM_F32LE ||
00372 enc->codec_id == CODEC_ID_PCM_F64LE ||
00373 enc->codec_id == CODEC_ID_PCM_S16LE) {
00374 bytespersec = enc->sample_rate * blkalign;
00375 } else {
00376 bytespersec = enc->bit_rate / 8;
00377 }
00378 put_le32(pb, bytespersec);
00379 put_le16(pb, blkalign);
00380 put_le16(pb, bps);
00381 if (enc->codec_id == CODEC_ID_MP3) {
00382 hdrsize += 12;
00383 bytestream_put_le16(&riff_extradata, 1);
00384 bytestream_put_le32(&riff_extradata, 2);
00385 bytestream_put_le16(&riff_extradata, 1152);
00386 bytestream_put_le16(&riff_extradata, 1);
00387 bytestream_put_le16(&riff_extradata, 1393);
00388 } else if (enc->codec_id == CODEC_ID_MP2) {
00389 hdrsize += 22;
00390 bytestream_put_le16(&riff_extradata, 2);
00391 bytestream_put_le32(&riff_extradata, enc->bit_rate);
00392 bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8);
00393 bytestream_put_le16(&riff_extradata, 0);
00394 bytestream_put_le16(&riff_extradata, 1);
00395 bytestream_put_le16(&riff_extradata, 16);
00396 bytestream_put_le32(&riff_extradata, 0);
00397 bytestream_put_le32(&riff_extradata, 0);
00398 } else if (enc->codec_id == CODEC_ID_GSM_MS || enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) {
00399 hdrsize += 2;
00400 bytestream_put_le16(&riff_extradata, enc->frame_size);
00401 } else if(enc->extradata_size){
00402 riff_extradata_start= enc->extradata;
00403 riff_extradata= enc->extradata + enc->extradata_size;
00404 hdrsize += enc->extradata_size;
00405 } else if (!waveformatextensible){
00406 hdrsize -= 2;
00407 }
00408 if(waveformatextensible) {
00409 hdrsize += 22;
00410 put_le16(pb, riff_extradata - riff_extradata_start + 22);
00411 put_le16(pb, enc->bits_per_coded_sample);
00412 put_le32(pb, enc->channel_layout);
00413 put_le32(pb, enc->codec_tag);
00414 put_le32(pb, 0x00100000);
00415 put_le32(pb, 0xAA000080);
00416 put_le32(pb, 0x719B3800);
00417 } else if(riff_extradata - riff_extradata_start) {
00418 put_le16(pb, riff_extradata - riff_extradata_start);
00419 }
00420 put_buffer(pb, riff_extradata_start, riff_extradata - riff_extradata_start);
00421 if(hdrsize&1){
00422 hdrsize++;
00423 put_byte(pb, 0);
00424 }
00425
00426 return hdrsize;
00427 }
00428
00429
00430 void ff_put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
00431 {
00432 put_le32(pb, 40 + enc->extradata_size);
00433 put_le32(pb, enc->width);
00434
00435 put_le32(pb, enc->codec_tag ? enc->height : -enc->height);
00436 put_le16(pb, 1);
00437
00438 put_le16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24);
00439
00440 put_le32(pb, enc->codec_tag);
00441 put_le32(pb, enc->width * enc->height * 3);
00442 put_le32(pb, 0);
00443 put_le32(pb, 0);
00444 put_le32(pb, 0);
00445 put_le32(pb, 0);
00446
00447 put_buffer(pb, enc->extradata, enc->extradata_size);
00448
00449 if (!for_asf && enc->extradata_size & 1)
00450 put_byte(pb, 0);
00451 }
00452 #endif //CONFIG_MUXERS
00453
00454 #if CONFIG_DEMUXERS
00455
00456
00457
00458
00459
00460
00461
00462 void ff_get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size)
00463 {
00464 int id;
00465
00466 id = get_le16(pb);
00467 codec->codec_type = AVMEDIA_TYPE_AUDIO;
00468 codec->codec_tag = id;
00469 codec->channels = get_le16(pb);
00470 codec->sample_rate = get_le32(pb);
00471 codec->bit_rate = get_le32(pb) * 8;
00472 codec->block_align = get_le16(pb);
00473 if (size == 14) {
00474 codec->bits_per_coded_sample = 8;
00475 }else
00476 codec->bits_per_coded_sample = get_le16(pb);
00477 if (size >= 18) {
00478 int cbSize = get_le16(pb);
00479 size -= 18;
00480 cbSize = FFMIN(size, cbSize);
00481 if (cbSize >= 22 && id == 0xfffe) {
00482 codec->bits_per_coded_sample = get_le16(pb);
00483 codec->channel_layout = get_le32(pb);
00484 id = get_le32(pb);
00485 url_fskip(pb, 12);
00486 cbSize -= 22;
00487 size -= 22;
00488 }
00489 codec->extradata_size = cbSize;
00490 if (cbSize > 0) {
00491 codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
00492 get_buffer(pb, codec->extradata, codec->extradata_size);
00493 size -= cbSize;
00494 }
00495
00496
00497 if (size > 0)
00498 url_fskip(pb, size);
00499 }
00500 codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample);
00501 }
00502
00503
00504 enum CodecID ff_wav_codec_get_id(unsigned int tag, int bps)
00505 {
00506 enum CodecID id;
00507 id = ff_codec_get_id(ff_codec_wav_tags, tag);
00508 if (id <= 0)
00509 return id;
00510
00511 if (id == CODEC_ID_PCM_S16LE && bps == 8)
00512 id = CODEC_ID_PCM_U8;
00513 if (id == CODEC_ID_PCM_S16LE && bps == 24)
00514 id = CODEC_ID_PCM_S24LE;
00515 if (id == CODEC_ID_PCM_S16LE && bps == 32)
00516 id = CODEC_ID_PCM_S32LE;
00517 if (id == CODEC_ID_PCM_F32LE && bps == 64)
00518 id = CODEC_ID_PCM_F64LE;
00519 if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8)
00520 id = CODEC_ID_PCM_ZORK;
00521 return id;
00522 }
00523 #endif // CONFIG_DEMUXERS
00524
00525 void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale)
00526 {
00527 int gcd;
00528
00529 *au_ssize= stream->block_align;
00530 if(stream->frame_size && stream->sample_rate){
00531 *au_scale=stream->frame_size;
00532 *au_rate= stream->sample_rate;
00533 }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO ||
00534 stream->codec_type == AVMEDIA_TYPE_SUBTITLE){
00535 *au_scale= stream->time_base.num;
00536 *au_rate = stream->time_base.den;
00537 }else{
00538 *au_scale= stream->block_align ? stream->block_align*8 : 8;
00539 *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate;
00540 }
00541 gcd= av_gcd(*au_scale, *au_rate);
00542 *au_scale /= gcd;
00543 *au_rate /= gcd;
00544 }