void vp8_inverse_transform_b(const vp8_idct_rtcd_vtable_t *rtcd, BLOCKD *b, int pitch)
{
if (b->eob > 1)
IDCT_INVOKE(rtcd, idct16)(b->dqcoeff, b->diff, pitch);
else
IDCT_INVOKE(rtcd, idct1)(b->dqcoeff, b->diff, pitch);
}
void vp8_encode_intra4x4block(const VP8_ENCODER_RTCD *rtcd,
MACROBLOCK *x, int ib)
{
BLOCKD *b = &x->e_mbd.block[ib];
BLOCK *be = &x->block[ib];
RECON_INVOKE(&rtcd->common->recon, intra4x4_predict)
(*(b->base_dst) + b->dst, b->dst_stride,
b->bmi.as_mode, b->predictor, 16);
ENCODEMB_INVOKE(&rtcd->encodemb, subb)(be, b, 16);
x->vp8_short_fdct4x4(be->src_diff, be->coeff, 32);
x->quantize_b(be, b);
if (*b->eob > 1)
{
IDCT_INVOKE(IF_RTCD(&rtcd->common->idct), idct16)(b->dqcoeff,
b->predictor, 16, *(b->base_dst) + b->dst, b->dst_stride);
}
else
{
IDCT_INVOKE(IF_RTCD(&rtcd->common->idct), idct1_scalar_add)
(b->dqcoeff[0], b->predictor, 16, *(b->base_dst) + b->dst,
b->dst_stride);
}
}
void vp8_inverse_transform_b(const vp8_idct_rtcd_vtable_t *rtcd, BLOCKD *b,
int pitch)
{
if (*b->eob > 1)
{
IDCT_INVOKE(rtcd, idct16)(b->dqcoeff, b->predictor, pitch,
*(b->base_dst) + b->dst, b->dst_stride);
}
else
{
IDCT_INVOKE(rtcd, idct1_scalar_add)(b->dqcoeff[0], b->predictor, pitch,
*(b->base_dst) + b->dst, b->dst_stride);
}
}
void vp8_inverse_transform_mby(const vp8_idct_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
{
int i;
// do 2nd order transform on the dc block
IDCT_INVOKE(rtcd, iwalsh16)(x->block[24].dqcoeff, x->block[24].diff);
recon_dcblock(x);
for (i = 0; i < 16; i++)
{
vp8_inverse_transform_b(rtcd, &x->block[i], 32);
}
}
void vp8_inverse_transform_mby(const vp8_idct_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
{
int i;
if(x->mode_info_context->mbmi.mode != SPLITMV)
{
/* do 2nd order transform on the dc block */
IDCT_INVOKE(rtcd, iwalsh16)(x->block[24].dqcoeff, x->dqcoeff);
}
for (i = 0; i < 16; i++)
{
vp8_inverse_transform_b(rtcd, &x->block[i], 16);
}
}
void vp8_inverse_transform_mb(const vp8_idct_rtcd_vtable_t *rtcd, MACROBLOCKD *x)
{
int i;
if (x->mbmi.mode != B_PRED && x->mbmi.mode != SPLITMV)
{
// do 2nd order transform on the dc block
IDCT_INVOKE(rtcd, iwalsh16)(&x->block[24].dqcoeff[0], x->block[24].diff);
recon_dcblock(x);
}
for (i = 0; i < 16; i++)
{
vp8_inverse_transform_b(rtcd, &x->block[i], 32);
}
for (i = 16; i < 24; i++)
{
vp8_inverse_transform_b(rtcd, &x->block[i], 16);
}
}
static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
unsigned int mb_idx)
{
int eobtotal = 0;
int throw_residual = 0;
MB_PREDICTION_MODE mode;
int i;
if (xd->mode_info_context->mbmi.mb_skip_coeff)
{
vp8_reset_mb_tokens_context(xd);
}
else if (!vp8dx_bool_error(xd->current_bc))
{
eobtotal = vp8_decode_mb_tokens(pbi, xd);
}
mode = xd->mode_info_context->mbmi.mode;
if (eobtotal == 0 && mode != B_PRED && mode != SPLITMV &&
!vp8dx_bool_error(xd->current_bc))
{
/* Special case: Force the loopfilter to skip when eobtotal and
* mb_skip_coeff are zero.
* */
xd->mode_info_context->mbmi.mb_skip_coeff = 1;
skip_recon_mb(pbi, xd);
return;
}
if (xd->segmentation_enabled)
mb_init_dequantizer(pbi, xd);
/* do prediction */
if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME)
{
RECON_INVOKE(&pbi->common.rtcd.recon, build_intra_predictors_mbuv_s)(xd);
if (mode != B_PRED)
{
RECON_INVOKE(&pbi->common.rtcd.recon,
build_intra_predictors_mby_s)(xd);
} else {
vp8_intra_prediction_down_copy(xd);
}
}
else
{
vp8_build_inter_predictors_mb(xd);
}
/* When we have independent partitions we can apply residual even
* though other partitions within the frame are corrupt.
*/
throw_residual = (!pbi->independent_partitions &&
pbi->frame_corrupt_residual);
throw_residual = (throw_residual || vp8dx_bool_error(xd->current_bc));
#if CONFIG_ERROR_CONCEALMENT
if (pbi->ec_active &&
(mb_idx >= pbi->mvs_corrupt_from_mb || throw_residual))
{
/* MB with corrupt residuals or corrupt mode/motion vectors.
* Better to use the predictor as reconstruction.
*/
pbi->frame_corrupt_residual = 1;
vpx_memset(xd->qcoeff, 0, sizeof(xd->qcoeff));
vp8_conceal_corrupt_mb(xd);
return;
}
#endif
/* dequantization and idct */
if (mode == B_PRED)
{
for (i = 0; i < 16; i++)
{
BLOCKD *b = &xd->block[i];
int b_mode = xd->mode_info_context->bmi[i].as_mode;
RECON_INVOKE(RTCD_VTABLE(recon), intra4x4_predict)
( *(b->base_dst) + b->dst, b->dst_stride, b_mode,
*(b->base_dst) + b->dst, b->dst_stride );
if (xd->eobs[i] )
{
if (xd->eobs[i] > 1)
{
DEQUANT_INVOKE(&pbi->dequant, idct_add)
(b->qcoeff, b->dequant,
*(b->base_dst) + b->dst, b->dst_stride);
}
else
{
IDCT_INVOKE(RTCD_VTABLE(idct), idct1_scalar_add)
(b->qcoeff[0] * b->dequant[0],
*(b->base_dst) + b->dst, b->dst_stride,
*(b->base_dst) + b->dst, b->dst_stride);
((int *)b->qcoeff)[0] = 0;
}
}
}
}
else
{
short *DQC = xd->block[0].dequant;
/* save the dc dequant constant in case it is overridden */
short dc_dequant_temp = DQC[0];
if (mode != SPLITMV)
{
BLOCKD *b = &xd->block[24];
/* do 2nd order transform on the dc block */
if (xd->eobs[24] > 1)
{
DEQUANT_INVOKE(&pbi->dequant, block)(b);
IDCT_INVOKE(RTCD_VTABLE(idct), iwalsh16)(&b->dqcoeff[0],
xd->qcoeff);
((int *)b->qcoeff)[0] = 0;
((int *)b->qcoeff)[1] = 0;
((int *)b->qcoeff)[2] = 0;
((int *)b->qcoeff)[3] = 0;
((int *)b->qcoeff)[4] = 0;
((int *)b->qcoeff)[5] = 0;
((int *)b->qcoeff)[6] = 0;
((int *)b->qcoeff)[7] = 0;
}
else
{
b->dqcoeff[0] = b->qcoeff[0] * b->dequant[0];
IDCT_INVOKE(RTCD_VTABLE(idct), iwalsh1)(&b->dqcoeff[0],
xd->qcoeff);
((int *)b->qcoeff)[0] = 0;
}
/* override the dc dequant constant */
DQC[0] = 1;
}
DEQUANT_INVOKE (&pbi->dequant, idct_add_y_block)
(xd->qcoeff, xd->block[0].dequant,
xd->dst.y_buffer,
xd->dst.y_stride, xd->eobs);
/* restore the dc dequant constant */
DQC[0] = dc_dequant_temp;
}
DEQUANT_INVOKE (&pbi->dequant, idct_add_uv_block)
(xd->qcoeff+16*16, xd->block[16].dequant,
xd->dst.u_buffer, xd->dst.v_buffer,
xd->dst.uv_stride, xd->eobs+16);
}