static av_cold int dcadec_init(AVCodecContext *avctx)
{
DCAContext *s = avctx->priv_data;
s->avctx = avctx;
s->core.avctx = avctx;
s->exss.avctx = avctx;
s->xll.avctx = avctx;
s->lbr.avctx = avctx;
ff_dca_init_vlcs();
if (ff_dca_core_init(&s->core) < 0)
return AVERROR(ENOMEM);
if (ff_dca_lbr_init(&s->lbr) < 0)
return AVERROR(ENOMEM);
ff_dcadsp_init(&s->dcadsp);
s->core.dcadsp = &s->dcadsp;
s->xll.dcadsp = &s->dcadsp;
s->lbr.dcadsp = &s->dcadsp;
s->crctab = av_crc_get_table(AV_CRC_16_CCITT);
switch (avctx->request_channel_layout & ~AV_CH_LAYOUT_NATIVE) {
case 0:
s->request_channel_layout = 0;
break;
case AV_CH_LAYOUT_STEREO:
case AV_CH_LAYOUT_STEREO_DOWNMIX:
s->request_channel_layout = DCA_SPEAKER_LAYOUT_STEREO;
break;
case AV_CH_LAYOUT_5POINT0:
s->request_channel_layout = DCA_SPEAKER_LAYOUT_5POINT0;
break;
case AV_CH_LAYOUT_5POINT1:
s->request_channel_layout = DCA_SPEAKER_LAYOUT_5POINT1;
break;
default:
av_log(avctx, AV_LOG_WARNING, "Invalid request_channel_layout\n");
break;
}
avctx->sample_fmt = AV_SAMPLE_FMT_S32P;
avctx->bits_per_raw_sample = 24;
return 0;
}
void checkasm_check_dcadsp(void)
{
DCADSPContext c;
ff_dcadsp_init(&c);
/* values are limited to {-8, 8} so absolute epsilon is good enough */
if (check_func(c.lfe_fir[0], "dca_lfe_fir0"))
check_lfe_fir(32, 1.0e-6f);
if (check_func(c.lfe_fir[1], "dca_lfe_fir1"))
check_lfe_fir(64, 1.0e-6f);
report("dcadsp");
}
