Searched refs:idelta (Results 1 - 6 of 6) sorted by relevance
| /third_party/libsnd/src/ |
| H A D | ms_adpcm.c | 70 ** 1,2 initial idelta (positive)
79 ** 2,3 initial idelta (positive) for left channel
80 ** 4,5 initial idelta (positive) for right channel
111 static void choose_predictor (unsigned int channels, short *data, int *bpred, int *idelta) ;
223 int idelta ; in msadpcm_decode_block() local
297 idelta = chan_idelta [chan] ; in msadpcm_decode_block()
298 chan_idelta [chan] = (AdaptationTable [bytecode] * idelta) >> 8 ; /* => / 256 => FIXED_POINT_ADAPTATION_BASE == 256 */ in msadpcm_decode_block()
306 current = (bytecode * idelta) + predict ; in msadpcm_decode_block()
529 int chan, k, predict, bpred [2] = { 0 }, idelta [2] = { 0 }, in msadpcm_encode_block() local
532 choose_predictor (pms->channels, pms->samples, bpred, idelta) ; in msadpcm_encode_block()
824 choose_predictor(unsigned int channels, short *data, int *block_pred, int *idelta) choose_predictor() argument
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| /third_party/ffmpeg/libavcodec/ |
| H A D | adpcmenc.c | 309 bias = c->idelta / 2; in adpcm_ms_compress_sample()
311 bias = -c->idelta / 2; in adpcm_ms_compress_sample()
313 nibble = (nibble + bias) / c->idelta; in adpcm_ms_compress_sample()
316 predictor += ((nibble & 0x08) ? (nibble - 0x10) : nibble) * c->idelta; in adpcm_ms_compress_sample()
321 c->idelta = (ff_adpcm_AdaptationTable[nibble] * c->idelta) >> 8; in adpcm_ms_compress_sample()
322 if (c->idelta < 16) in adpcm_ms_compress_sample()
323 c->idelta = 16; in adpcm_ms_compress_sample()
380 nodes[0]->step = c->idelta; in adpcm_compress_trellis()
554 c->idelta in adpcm_compress_trellis()
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| H A D | adpcm.h | 43 int idelta; member
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| H A D | adpcm.c | 538 predictor += ((nibble & 0x08)?(nibble - 0x10):(nibble)) * c->idelta; in adpcm_ms_expand_nibble()
542 c->idelta = (ff_adpcm_AdaptationTable[(int)nibble] * c->idelta) >> 8; in adpcm_ms_expand_nibble()
543 if (c->idelta < 16) c->idelta = 16; in adpcm_ms_expand_nibble()
544 if (c->idelta > INT_MAX/768) { in adpcm_ms_expand_nibble()
545 av_log(NULL, AV_LOG_WARNING, "idelta overflow\n"); in adpcm_ms_expand_nibble()
546 c->idelta = INT_MAX/768; in adpcm_ms_expand_nibble()
1244 c->status[channel].idelta = sign_extend(bytestream2_get_le16u(&gb), 16); in adpcm_decode_frame()
1274 c->status[0].idelta in adpcm_decode_frame()
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| /third_party/icu/icu4c/source/tools/tzcode/ |
| H A D | localtime.c | 1462 register int idelta; in timesub() local
1469 idelta = tdelta; in timesub()
1470 if (idelta == 0) in timesub()
1471 idelta = (tdays < 0) ? -1 : 1; in timesub()
1473 if (increment_overflow(&newy, idelta)) in timesub()
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| /third_party/skia/third_party/externals/icu/source/tools/tzcode/ |
| H A D | localtime.c | 1460 register int idelta; in timesub() local
1467 idelta = tdelta; in timesub()
1468 if (idelta == 0) in timesub()
1469 idelta = (tdays < 0) ? -1 : 1; in timesub()
1471 if (increment_overflow(&newy, idelta)) in timesub()
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