diff options
Diffstat (limited to 'libavcodec/snow.c')
| -rw-r--r-- | libavcodec/snow.c | 69 |
1 files changed, 35 insertions, 34 deletions
diff --git a/libavcodec/snow.c b/libavcodec/snow.c index d657c41..aceb6cf 100644 --- a/libavcodec/snow.c +++ b/libavcodec/snow.c @@ -2539,30 +2539,31 @@ static av_always_inline void add_yblock(SnowContext *s, int sliced, slice_buffer #else if(sliced){ s->dsp.inner_add_yblock(obmc, obmc_stride, block, b_w, b_h, src_x,src_y, src_stride, sb, add, dst8); - }else - for(y=0; y<b_h; y++){ - //FIXME ugly misuse of obmc_stride - const uint8_t *obmc1= obmc + y*obmc_stride; - const uint8_t *obmc2= obmc1+ (obmc_stride>>1); - const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); - const uint8_t *obmc4= obmc3+ (obmc_stride>>1); - for(x=0; x<b_w; x++){ - int v= obmc1[x] * block[3][x + y*src_stride] - +obmc2[x] * block[2][x + y*src_stride] - +obmc3[x] * block[1][x + y*src_stride] - +obmc4[x] * block[0][x + y*src_stride]; - - v <<= 8 - LOG2_OBMC_MAX; - if(FRAC_BITS != 8){ - v >>= 8 - FRAC_BITS; - } - if(add){ - v += dst[x + y*dst_stride]; - v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; - if(v&(~255)) v= ~(v>>31); - dst8[x + y*src_stride] = v; - }else{ - dst[x + y*dst_stride] -= v; + }else{ + for(y=0; y<b_h; y++){ + //FIXME ugly misuse of obmc_stride + const uint8_t *obmc1= obmc + y*obmc_stride; + const uint8_t *obmc2= obmc1+ (obmc_stride>>1); + const uint8_t *obmc3= obmc1+ obmc_stride*(obmc_stride>>1); + const uint8_t *obmc4= obmc3+ (obmc_stride>>1); + for(x=0; x<b_w; x++){ + int v= obmc1[x] * block[3][x + y*src_stride] + +obmc2[x] * block[2][x + y*src_stride] + +obmc3[x] * block[1][x + y*src_stride] + +obmc4[x] * block[0][x + y*src_stride]; + + v <<= 8 - LOG2_OBMC_MAX; + if(FRAC_BITS != 8){ + v >>= 8 - FRAC_BITS; + } + if(add){ + v += dst[x + y*dst_stride]; + v = (v + (1<<(FRAC_BITS-1))) >> FRAC_BITS; + if(v&(~255)) v= ~(v>>31); + dst8[x + y*src_stride] = v; + }else{ + dst[x + y*dst_stride] -= v; + } } } } @@ -2613,16 +2614,16 @@ static av_always_inline void predict_slice_buffered(SnowContext *s, slice_buffer return; } - for(mb_x=0; mb_x<=mb_w; mb_x++){ - add_yblock(s, 1, sb, old_buffer, dst8, obmc, - block_w*mb_x - block_w/2, - block_w*mb_y - block_w/2, - block_w, block_w, - w, h, - w, ref_stride, obmc_stride, - mb_x - 1, mb_y - 1, - add, 0, plane_index); - } + for(mb_x=0; mb_x<=mb_w; mb_x++){ + add_yblock(s, 1, sb, old_buffer, dst8, obmc, + block_w*mb_x - block_w/2, + block_w*mb_y - block_w/2, + block_w, block_w, + w, h, + w, ref_stride, obmc_stride, + mb_x - 1, mb_y - 1, + add, 0, plane_index); + } } static av_always_inline void predict_slice(SnowContext *s, IDWTELEM *buf, int plane_index, int add, int mb_y){ |
