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hevc: Drop unnecessary shifts in deblocking_filter_CTB

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beta_offset is pre-multiplied by 2.
pull/56/merge
Luca Barbato 11 years ago
parent 1db03a6864
commit 50c988aa6d
1 changed files with 4 additions and 4 deletions
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  1. 8
      libavcodec/hevc_filter.c

8
libavcodec/hevc_filter.c
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@ -374,8 +374,8 @@ static void deblocking_filter_CTB(HEVCContext *s, int x0, int y0)
const int qp0 = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1; const int qp0 = (get_qPy(s, x - 1, y) + get_qPy(s, x, y) + 1) >> 1;
const int qp1 = (get_qPy(s, x - 1, y + 4) + get_qPy(s, x, y + 4) + 1) >> 1; const int qp1 = (get_qPy(s, x - 1, y + 4) + get_qPy(s, x, y + 4) + 1) >> 1;
beta[0] = betatable[av_clip(qp0 + (beta_offset >> 1 << 1), 0, MAX_QP)]; beta[0] = betatable[av_clip(qp0 + beta_offset, 0, MAX_QP)];
beta[1] = betatable[av_clip(qp1 + (beta_offset >> 1 << 1), 0, MAX_QP)]; beta[1] = betatable[av_clip(qp1 + beta_offset, 0, MAX_QP)];
tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0; tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0;
tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0; tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0;
src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)]; src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)];
@ -439,8 +439,8 @@ static void deblocking_filter_CTB(HEVCContext *s, int x0, int y0)
tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset; tc_offset = x >= x0 ? cur_tc_offset : left_tc_offset;
beta_offset = x >= x0 ? cur_beta_offset : left_beta_offset; beta_offset = x >= x0 ? cur_beta_offset : left_beta_offset;
beta[0] = betatable[av_clip(qp0 + (beta_offset >> 1 << 1), 0, MAX_QP)]; beta[0] = betatable[av_clip(qp0 + beta_offset, 0, MAX_QP)];
beta[1] = betatable[av_clip(qp1 + (beta_offset >> 1 << 1), 0, MAX_QP)]; beta[1] = betatable[av_clip(qp1 + beta_offset, 0, MAX_QP)];
tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0; tc[0] = bs0 ? TC_CALC(qp0, bs0) : 0;
tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0; tc[1] = bs1 ? TC_CALC(qp1, bs1) : 0;
src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)]; src = &s->frame->data[LUMA][y * s->frame->linesize[LUMA] + (x << s->sps->pixel_shift)];

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