Revision 513fbd8e libavcodec/h264.c

View differences:

libavcodec/h264.c
2752 2752
                    x_offset, y_offset, qpix_put, chroma_put, qpix_avg, chroma_avg, list0, list1);
2753 2753
}
2754 2754

  
2755
static inline void prefetch_motion(H264Context *h, int list){
2756
    /* fetch pixels for estimated mv 4 macroblocks ahead
2757
     * optimized for 64byte cache lines */
2758
    MpegEncContext * const s = &h->s;
2759
    const int refn = h->ref_cache[list][scan8[0]];
2760
    if(refn >= 0){
2761
        const int mx= (h->mv_cache[list][scan8[0]][0]>>2) + 16*s->mb_x + 8;
2762
        const int my= (h->mv_cache[list][scan8[0]][1]>>2) + 16*s->mb_y;
2763
        uint8_t **src= h->ref_list[list][refn].data;
2764
        int off= mx + (my + (s->mb_x&3)*4)*s->linesize + 64;
2765
        s->dsp.prefetch(src[0]+off, s->linesize, 4);
2766
        off= (mx>>1) + ((my>>1) + (s->mb_x&7))*s->uvlinesize + 64;
2767
        s->dsp.prefetch(src[1]+off, src[2]-src[1], 2);
2768
    }
2769
}
2770

  
2755 2771
static void hl_motion(H264Context *h, uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr,
2756 2772
                      qpel_mc_func (*qpix_put)[16], h264_chroma_mc_func (*chroma_put),
2757 2773
                      qpel_mc_func (*qpix_avg)[16], h264_chroma_mc_func (*chroma_avg),
......
2762 2778

  
2763 2779
    assert(IS_INTER(mb_type));
2764 2780

  
2781
    prefetch_motion(h, 0);
2782

  
2765 2783
    if(IS_16X16(mb_type)){
2766 2784
        mc_part(h, 0, 1, 8, 0, dest_y, dest_cb, dest_cr, 0, 0,
2767 2785
                qpix_put[0], chroma_put[0], qpix_avg[0], chroma_avg[0],
......
2833 2851
            }
2834 2852
        }
2835 2853
    }
2854

  
2855
    prefetch_motion(h, 1);
2836 2856
}
2837 2857

  
2838 2858
static void decode_init_vlc(H264Context *h){

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