mirror of https://git.ffmpeg.org/ffmpeg.git
Unroll loops in check_mv()
~6% faster (slow path) loopfilter (should be ~2% overall) Originally committed as revision 21503 to svn://svn.ffmpeg.org/ffmpeg/trunk
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@ -425,23 +425,26 @@ void ff_h264_filter_mb_fast( H264Context *h, int mb_x, int mb_y, uint8_t *img_y,
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}
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static int check_mv(H264Context *h, long b_idx, long bn_idx, int mvy_limit){
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int l;
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int v = 0;
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int v;
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for( l = 0; !v && l < h->list_count; l++ ) {
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v |= h->ref_cache[l][b_idx] != h->ref_cache[l][bn_idx] |
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h->mv_cache[l][b_idx][0] - h->mv_cache[l][bn_idx][0] + 3 >= 7U |
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FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[l][bn_idx][1] ) >= mvy_limit;
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}
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v = h->ref_cache[0][b_idx] != h->ref_cache[0][bn_idx] |
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h->mv_cache[0][b_idx][0] - h->mv_cache[0][bn_idx][0] + 3 >= 7U |
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FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit;
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if(h->list_count==2 && !v)
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v = h->ref_cache[1][b_idx] != h->ref_cache[1][bn_idx] |
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h->mv_cache[1][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |
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FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit;
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if(h->list_count==2 && v){
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v=0;
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for( l = 0; !v && l < 2; l++ ) {
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int ln= 1-l;
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v |= h->ref_cache[l][b_idx] != h->ref_cache[ln][bn_idx] |
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h->mv_cache[l][b_idx][0] - h->mv_cache[ln][bn_idx][0] + 3 >= 7U |
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FFABS( h->mv_cache[l][b_idx][1] - h->mv_cache[ln][bn_idx][1] ) >= mvy_limit;
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}
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if(h->ref_cache[0][b_idx] != h->ref_cache[1][bn_idx] |
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h->mv_cache[0][b_idx][0] - h->mv_cache[1][bn_idx][0] + 3 >= 7U |
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FFABS( h->mv_cache[0][b_idx][1] - h->mv_cache[1][bn_idx][1] ) >= mvy_limit)
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return 1;
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if(h->ref_cache[1][b_idx] != h->ref_cache[0][bn_idx] |
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h->mv_cache[1][b_idx][0] - h->mv_cache[0][bn_idx][0] + 3 >= 7U |
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FFABS( h->mv_cache[1][b_idx][1] - h->mv_cache[0][bn_idx][1] ) >= mvy_limit)
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return 1;
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return 0;
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}
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return v;
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