41     int nibble;  member
218     int nibble = FFMIN(7, abs(delta) * 4 /  in adpcm_ima_compress_sample()  local
221                         ff_adpcm_yamaha_difflookup[nibble]) / 8);  in adpcm_ima_compress_sample()
223     c->step_index  = av_clip(c->step_index + ff_adpcm_index_table[nibble], 0, 88);  in adpcm_ima_compress_sample()
224     return nibble;  in adpcm_ima_compress_sample()
233     int nibble = FFMIN(abs(delta) * 4 / step, 7);  in adpcm_ima_alp_compress_sample()  local
234     int diff   = (step * nibble) >> 2;  in adpcm_ima_alp_compress_sample()
238     nibble = sign | nibble;  in adpcm_ima_alp_compress_sample()
242     c->step_index   = av_clip(c->step_index + ff_adpcm_index_table[nibble], 0, 88);  in adpcm_ima_alp_compress_sample()
243     return nibble;  in adpcm_ima_alp_compress_sample()
251     int nibble = 8*(delta < 0);  in adpcm_ima_qt_compress_sample()  local
257         nibble |= 4;  in adpcm_ima_qt_compress_sample()
262         nibble |= 2;  in adpcm_ima_qt_compress_sample()
267         nibble |= 1;  in adpcm_ima_qt_compress_sample()
272     if (nibble & 8)  in adpcm_ima_qt_compress_sample()
278     c->step_index  = av_clip(c->step_index + ff_adpcm_index_table[nibble], 0, 88);  in adpcm_ima_qt_compress_sample()
280     return nibble;  in adpcm_ima_qt_compress_sample()
286     int predictor, nibble, bias;  in adpcm_ms_compress_sample()  local
291     nibble = sample - predictor;  in adpcm_ms_compress_sample()
292     if (nibble >= 0)  in adpcm_ms_compress_sample()
297     nibble = (nibble + bias) / c->idelta;  in adpcm_ms_compress_sample()
298     nibble = av_clip_intp2(nibble, 3) & 0x0F;  in adpcm_ms_compress_sample()
300     predictor += ((nibble & 0x08) ? (nibble - 0x10) : nibble) * c->idelta;  in adpcm_ms_compress_sample()
305     c->idelta = (ff_adpcm_AdaptationTable[nibble] * c->idelta) >> 8;  in adpcm_ms_compress_sample()
309     return nibble;  in adpcm_ms_compress_sample()
315     int nibble, delta;  in adpcm_yamaha_compress_sample()  local
324     nibble = FFMIN(7, abs(delta) * 4 / c->step) + (delta < 0) * 8;  in adpcm_yamaha_compress_sample()
326     c->predictor += ((c->step * ff_adpcm_yamaha_difflookup[nibble]) / 8);  in adpcm_yamaha_compress_sample()
328     c->step = (c->step * ff_adpcm_yamaha_indexscale[nibble]) >> 8;  in adpcm_yamaha_compress_sample()
331     return nibble;  in adpcm_yamaha_compress_sample()
394                     const int nibble = nidx & 0xf;  in adpcm_compress_trellis()  local
448                     paths[u->path].nibble = nibble;\  in adpcm_compress_trellis()
461                                (ff_adpcm_AdaptationTable[nibble] * step) >> 8));  in adpcm_compress_trellis()
477                     const int nibble = nidx < 0 ? 7 - nidx : nidx;\  in adpcm_compress_trellis()
480                                      ff_adpcm_yamaha_difflookup[nibble]) / 8;\  in adpcm_compress_trellis()
484                            av_clip(step + ff_adpcm_index_table[nibble], 0, 88));  in adpcm_compress_trellis()
487                            av_clip((step * ff_adpcm_yamaha_indexscale[nibble]) >> 8,  in adpcm_compress_trellis()
515                 dst[k] = p->nibble;  in adpcm_compress_trellis()
529         dst[i] = p->nibble;  in adpcm_compress_trellis()
544     int nibble;  in adpcm_argo_compress_nibble()  local
547         nibble = 4 * s - 8 * cs->sample1 + 4 * cs->sample2;  in adpcm_argo_compress_nibble()
549         nibble = 4 * s - 4 * cs->sample1;  in adpcm_argo_compress_nibble()
551     return (nibble >> shift) & 0x0F;  in adpcm_argo_compress_nibble()
569         int nibble = adpcm_argo_compress_nibble(cs, samples[n], shift, flag);  in adpcm_argo_compress_block()  local
570         int16_t sample = ff_adpcm_argo_expand_nibble(cs, nibble, shift, flag);  in adpcm_argo_compress_block()
575             put_bits(pb, 4, nibble);  in adpcm_argo_compress_block()
805                 int nibble;  in adpcm_encode_frame()  local
806                 nibble  = adpcm_ms_compress_sample(&c->status[ 0], *samples++) << 4;  in adpcm_encode_frame()
807                 nibble |= adpcm_ms_compress_sample(&c->status[st], *samples++);  in adpcm_encode_frame()
808                 *dst++  = nibble;  in adpcm_encode_frame()
834                 int nibble;  in adpcm_encode_frame()  local
835                 nibble  = adpcm_yamaha_compress_sample(&c->status[ 0], *samples++);  in adpcm_encode_frame()
836                 nibble |= adpcm_yamaha_compress_sample(&c->status[st], *samples++) << 4;  in adpcm_encode_frame()
837                 *dst++  = nibble;  in adpcm_encode_frame()
881             int nibble;  in adpcm_encode_frame()  local
882             nibble  = adpcm_ima_compress_sample(&c->status[0], *samples++) << 4;  in adpcm_encode_frame()
883             nibble |= adpcm_ima_compress_sample(&c->status[0], *samples++) & 0x0F;  in adpcm_encode_frame()
884             bytestream_put_byte(&dst, nibble);  in adpcm_encode_frame()
888             int nibble = adpcm_ima_compress_sample(&c->status[0], *samples++) << 4;  in adpcm_encode_frame()  local
889             bytestream_put_byte(&dst, nibble);  in adpcm_encode_frame()