Function ff_update_block_index

libavcodec/mpegvideo.h:335–350

                   const qpel_mc_func (*qpix_op)[16]);

static inline void ff_update_block_index(MpegEncContext *s, int bits_per_raw_sample,
                                         int lowres, int chroma_x_shift)
{
    const int bytes_per_pixel = 1 + (bits_per_raw_sample > 8);
    const int block_size = (8 * bytes_per_pixel) >> lowres;

    s->block_index[0]+=2;
    s->block_index[1]+=2;
    s->block_index[2]+=2;
    s->block_index[3]+=2;
    s->block_index[4]++;
    s->block_index[5]++;
    s->dest[0]+= 2*block_size;
    s->dest[1] += (2 >> chroma_x_shift) * block_size;
    s->dest[2] += (2 >> chroma_x_shift) * block_size;
}

#endif /* AVCODEC_MPEGVIDEO_H */