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Use put_signed_pixels_clamped where appropriate

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Patch by Christophe GISQUET christophe.gisquet <whirlpool sign> fr(run of two 'e').(copy 2 bytes with offset -5)
Thread: [PATCH] Use signed version when putting and clamping pixels in VC-1

Originally committed as revision 11029 to svn://svn.ffmpeg.org/ffmpeg/trunk
pull/126/head
Christophe Gisquet 17 years ago committed by Kostya Shishkov
parent d638424b8a
commit 1a625dce18
1 changed files with 3 additions and 6 deletions
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  1. 9
      libavcodec/vc1.c

9
libavcodec/vc1.c
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@ -3093,8 +3093,7 @@ static int vc1_decode_p_mb(VC1Context *v)
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
s->dsp.vc1_inv_trans_8x8(s->block[i]);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
for(j = 0; j < 64; j++) s->block[i][j] += 128;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
if(v->pq >= 9 && v->overlap) {
if(v->c_avail)
s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
@ -3196,8 +3195,7 @@ static int vc1_decode_p_mb(VC1Context *v)
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
s->dsp.vc1_inv_trans_8x8(s->block[i]);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
for(j = 0; j < 64; j++) s->block[i][j] += 128;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, (i&4)?s->uvlinesize:s->linesize);
if(v->pq >= 9 && v->overlap) {
if(v->c_avail)
s->dsp.vc1_h_overlap(s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
@ -3377,8 +3375,7 @@ static void vc1_decode_b_mb(VC1Context *v)
if((i>3) && (s->flags & CODEC_FLAG_GRAY)) continue;
s->dsp.vc1_inv_trans_8x8(s->block[i]);
if(v->rangeredfrm) for(j = 0; j < 64; j++) s->block[i][j] <<= 1;
for(j = 0; j < 64; j++) s->block[i][j] += 128;
s->dsp.put_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
s->dsp.put_signed_pixels_clamped(s->block[i], s->dest[dst_idx] + off, s->linesize >> ((i & 4) >> 2));
} else if(val) {
vc1_decode_p_block(v, s->block[i], i, mquant, ttmb, first_block);
if(!v->ttmbf && ttmb < 8) ttmb = -1;

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