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Searched refs:prev_dc (Results 1 – 11 of 11) sorted by relevance

/third_party/ffmpeg/libavcodec/
Dmss4.c89 int *prev_dc[3]; member
229 c->dc_cache[j][TOP] = c->prev_dc[0][mb_x * 2 + i]; in mss4_decode_dct_block()
235 c->prev_dc[0][mb_x * 2 + i] = c->dc_cache[j][LEFT]; in mss4_decode_dct_block()
245 c->dc_cache[i + 1][TOP] = c->prev_dc[i][mb_x]; in mss4_decode_dct_block()
251 c->prev_dc[i][mb_x] = c->dc_cache[i + 1][LEFT]; in mss4_decode_dct_block()
431 c->dc_cache[0][TOP] = c->prev_dc[0][mb_x * 2 + 1]; in mss4_update_dc_cache()
437 c->prev_dc[0][mb_x * 2 + i] = 0; in mss4_update_dc_cache()
440 c->dc_cache[i + 1][TOP] = c->prev_dc[i][mb_x]; in mss4_update_dc_cache()
442 c->prev_dc[i][mb_x] = 0; in mss4_update_dc_cache()
576 av_freep(&c->prev_dc[i]); in mss4_decode_end()
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Dmss3.c93 int *prev_dc; member
516 l = bc->prev_dc[blk_pos - 1]; in decode_dct()
517 tl = bc->prev_dc[blk_pos - 1 - bc->prev_dc_stride]; in decode_dct()
518 t = bc->prev_dc[blk_pos - bc->prev_dc_stride]; in decode_dct()
525 dc += bc->prev_dc[blk_pos - bc->prev_dc_stride]; in decode_dct()
528 dc += bc->prev_dc[bx - 1]; in decode_dct()
530 bc->prev_dc[blk_pos] = dc; in decode_dct()
648 memset(ctx->dct_coder[i].prev_dc, 0, in reset_coders()
649 sizeof(*ctx->dct_coder[i].prev_dc) * in reset_coders()
819 av_freep(&c->dct_coder[i].prev_dc); in mss3_decode_end()
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Dtscc2.c126 int prev_dc, dc, nc, ac, bpos, val; in tscc2_decode_mb() local
146 prev_dc = 0; in tscc2_decode_mb()
156 dc = (dc + prev_dc) & 0xFF; in tscc2_decode_mb()
157 prev_dc = dc; in tscc2_decode_mb()
Divi.c474 static int ivi_dc_transform(const IVIBandDesc *band, int *prev_dc, int buf_offs, in ivi_dc_transform() argument
477 band->dc_transform(prev_dc, band->buf + buf_offs, in ivi_dc_transform()
487 int *prev_dc, int is_intra, in ivi_decode_coded_blocks() argument
562 *prev_dc += trvec[0]; in ivi_decode_coded_blocks()
563 trvec[0] = *prev_dc; in ivi_decode_coded_blocks()
564 col_flags[0] |= !!*prev_dc; in ivi_decode_coded_blocks()
600 int32_t prev_dc; in ivi_decode_blocks() local
608 prev_dc = 0; in ivi_decode_blocks()
701 &prev_dc, is_intra, in ivi_decode_blocks()
716 ret = ivi_dc_transform(band, &prev_dc, buf_offs, blk_size); in ivi_decode_blocks()
Dproresenc_kostya.c411 int codebook = 3, code, dc, prev_dc, delta, sign, new_sign; in encode_dcs() local
413 prev_dc = (blocks[0] - 0x4000) / scale; in encode_dcs()
414 encode_vlc_codeword(pb, FIRST_DC_CB, MAKE_CODE(prev_dc)); in encode_dcs()
421 delta = dc - prev_dc; in encode_dcs()
429 prev_dc = dc; in encode_dcs()
667 int codebook = 3, code, dc, prev_dc, delta, sign, new_sign; in estimate_dcs() local
670 prev_dc = (blocks[0] - 0x4000) / scale; in estimate_dcs()
671 bits = estimate_vlc(FIRST_DC_CB, MAKE_CODE(prev_dc)); in estimate_dcs()
680 delta = dc - prev_dc; in estimate_dcs()
688 prev_dc = dc; in estimate_dcs()
Dvp56.c308 dc = s->prev_dc[ff_vp56_b2p[b]][ref_frame]; in vp56_add_predictors_dc()
313 s->prev_dc[ff_vp56_b2p[b]][ref_frame] = s->block_coeff[b][idx]; in vp56_add_predictors_dc()
687 memset(s->prev_dc, 0, sizeof(s->prev_dc)); in ff_vp56_decode_mbs()
688 s->prev_dc[1][VP56_FRAME_CURRENT] = 128; in ff_vp56_decode_mbs()
689 s->prev_dc[2][VP56_FRAME_CURRENT] = 128; in ff_vp56_decode_mbs()
Dproresdec2.c446 int16_t prev_dc; in decode_dc_coeffs() local
452 prev_dc = TOSIGNED(code); in decode_dc_coeffs()
453 out[0] = prev_dc; in decode_dc_coeffs()
463 prev_dc += (((code + 1) >> 1) ^ sign) - sign; in decode_dc_coeffs()
464 out[0] = prev_dc; in decode_dc_coeffs()
Dproresenc_anatoliy.c247 int prev_dc, code; in encode_dc_coeffs() local
251 prev_dc = QSCALE(qmat, 0, in[0] - 16384); in encode_dc_coeffs()
252 code = TO_GOLOMB(prev_dc); in encode_dc_coeffs()
258 delta = new_dc - prev_dc; in encode_dc_coeffs()
266 prev_dc = new_dc; in encode_dc_coeffs()
Derror_resilience.c103 int prev_dc = data[0 + y * stride]; in filter181() local
107 dc = -prev_dc + in filter181()
111 prev_dc = data[x + y * stride]; in filter181()
118 int prev_dc = data[x]; in filter181() local
123 dc = -prev_dc + in filter181()
127 prev_dc = data[x + y * stride]; in filter181()
Dg2meet.c127 int prev_dc[3]; member
237 dc = dc * qmat[0] + c->prev_dc[plane]; in jpg_decode_block()
239 c->prev_dc[plane] = dc; in jpg_decode_block()
297 c->prev_dc[i] = 1024; in jpg_decode_data()
Dvp56.h158 int16_t prev_dc[3][3]; /* [plan][ref_frame] */ member