av_cold int ff_dvvideo_init(AVCodecContext *avctx)
{
DVVideoContext *s = avctx->priv_data;
- DSPContext dsp;
static int done = 0;
int i, j;
ff_free_vlc(&dv_vlc);
}
- /* Generic DSP setup */
- memset(&dsp,0, sizeof(dsp));
- ff_dsputil_init(&dsp, avctx);
- ff_set_cmp(&dsp, dsp.ildct_cmp, avctx->ildct_cmp);
- s->get_pixels = dsp.get_pixels;
- s->ildct_cmp = dsp.ildct_cmp[5];
-
- /* 88DCT setup */
- s->fdct[0] = dsp.fdct;
- s->idct_put[0] = dsp.idct_put;
- for (i = 0; i < 64; i++)
- s->dv_zigzag[0][i] = dsp.idct_permutation[ff_zigzag_direct[i]];
-
- /* 248DCT setup */
- s->fdct[1] = dsp.fdct248;
- s->idct_put[1] = ff_simple_idct248_put; // FIXME: need to add it to DSP
- if (avctx->lowres){
- for (i = 0; i < 64; i++){
- int j = ff_dv_zigzag248_direct[i];
- s->dv_zigzag[1][i] = dsp.idct_permutation[(j & 7) + (j & 8) * 4 + (j & 48) / 2];
- }
- }else
- memcpy(s->dv_zigzag[1], ff_dv_zigzag248_direct, 64);
-
s->avctx = avctx;
avctx->chroma_sample_location = AVCHROMA_LOC_TOPLEFT;