Function encode_plane

libavcodec/ffv1.c:509–537

}

static void encode_plane(FFV1Context *s, uint8_t *src, int w, int h, int stride, int plane_index){
    int x,y,i;
    const int ring_size= s->avctx->context_model ? 3 : 2;
    int_fast16_t sample_buffer[ring_size][w+6], *sample[ring_size];
    s->run_index=0;

    memset(sample_buffer, 0, sizeof(sample_buffer));

    for(y=0; y<h; y++){
        for(i=0; i<ring_size; i++)
            sample[i]= sample_buffer[(h+i-y)%ring_size]+3;

        sample[0][-1]= sample[1][0  ];
        sample[1][ w]= sample[1][w-1];
//{START_TIMER
        if(s->avctx->bits_per_raw_sample<=8){
            for(x=0; x<w; x++){
                sample[0][x]= src[x + stride*y];
            }
            encode_line(s, w, sample, plane_index, 8);
        }else{
            for(x=0; x<w; x++){
                sample[0][x]= ((uint16_t*)(src + stride*y))[x] >> (16 - s->avctx->bits_per_raw_sample);
            }
            encode_line(s, w, sample, plane_index, s->avctx->bits_per_raw_sample);
        }
//STOP_TIMER("encode line")}
    }
}

static void encode_rgb_frame(FFV1Context *s, uint32_t *src, int w, int h, int stride){
    int x, y, p, i;