void vp8_encode_intra4x4block(MACROBLOCK *x, int ib)
{
BLOCKD *b = &x->e_mbd.block[ib];
BLOCK *be = &x->block[ib];
vp8_intra4x4_predict
(*(b->base_dst) + b->dst, b->dst_stride,
b->bmi.as_mode, b->predictor_base + b->predictor_offset, 16);
vp8_subtract_b(be, b, 16);
x->short_fdct4x4(be->src_diff, be->coeff, 32);
x->quantize_b(be, b);
if (*b->eob > 1)
{
vp8_short_idct4x4llm(b->dqcoeff_base + b->dqcoeff_offset,
b->predictor_base + b->predictor_offset, 16, *(b->base_dst) + b->dst, b->dst_stride);
}
else
{
vp8_dc_only_idct_add
(b->dqcoeff_base[b->dqcoeff_offset], b->predictor_base + b->predictor_offset, 16, *(b->base_dst) + b->dst,
b->dst_stride);
}
}
void vp8_encode_intra4x4block(MACROBLOCK *x, int ib)
{
BLOCKD *b = &x->e_mbd.block[ib];
BLOCK *be = &x->block[ib];
int dst_stride = x->e_mbd.dst.y_stride;
unsigned char *dst = x->e_mbd.dst.y_buffer + b->offset;
unsigned char *Above = dst - dst_stride;
unsigned char *yleft = dst - 1;
unsigned char top_left = Above[-1];
vp8_intra4x4_predict(Above, yleft, dst_stride, b->bmi.as_mode,
b->predictor, 16, top_left);
vp8_subtract_b(be, b, 16);
x->short_fdct4x4(be->src_diff, be->coeff, 32);
x->quantize_b(be, b);
if (*b->eob > 1)
{
vp8_short_idct4x4llm(b->dqcoeff, b->predictor, 16, dst, dst_stride);
}
else
{
vp8_dc_only_idct_add(b->dqcoeff[0], b->predictor, 16, dst, dst_stride);
}
}
static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
unsigned int mb_idx)
{
MB_PREDICTION_MODE mode;
int i;
#if CONFIG_ERROR_CONCEALMENT
int corruption_detected = 0;
#endif
if (xd->mode_info_context->mbmi.mb_skip_coeff)
{
vp8_reset_mb_tokens_context(xd);
}
else if (!vp8dx_bool_error(xd->current_bc))
{
int eobtotal;
eobtotal = vp8_decode_mb_tokens(pbi, xd);
/* Special case: Force the loopfilter to skip when eobtotal is zero */
xd->mode_info_context->mbmi.mb_skip_coeff = (eobtotal==0);
}
mode = xd->mode_info_context->mbmi.mode;
if (xd->segmentation_enabled)
vp8_mb_init_dequantizer(pbi, xd);
#if CONFIG_ERROR_CONCEALMENT
if(pbi->ec_active)
{
int throw_residual;
/* 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 ((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);
corruption_detected = 1;
/* force idct to be skipped for B_PRED and use the
* prediction only for reconstruction
* */
vpx_memset(xd->eobs, 0, 25);
}
}
#endif
/* do prediction */
if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME)
{
vp8_build_intra_predictors_mbuv_s(xd,
xd->recon_above[1],
xd->recon_above[2],
xd->recon_left[1],
xd->recon_left[2],
xd->recon_left_stride[1],
xd->dst.u_buffer, xd->dst.v_buffer,
xd->dst.uv_stride);
if (mode != B_PRED)
{
vp8_build_intra_predictors_mby_s(xd,
xd->recon_above[0],
xd->recon_left[0],
xd->recon_left_stride[0],
xd->dst.y_buffer,
xd->dst.y_stride);
}
else
{
short *DQC = xd->dequant_y1;
int dst_stride = xd->dst.y_stride;
/* clear out residual eob info */
if(xd->mode_info_context->mbmi.mb_skip_coeff)
vpx_memset(xd->eobs, 0, 25);
intra_prediction_down_copy(xd, xd->recon_above[0] + 16);
for (i = 0; i < 16; i++)
{
BLOCKD *b = &xd->block[i];
unsigned char *dst = xd->dst.y_buffer + b->offset;
B_PREDICTION_MODE b_mode =
xd->mode_info_context->bmi[i].as_mode;
unsigned char *Above = dst - dst_stride;
unsigned char *yleft = dst - 1;
int left_stride = dst_stride;
unsigned char top_left = Above[-1];
vp8_intra4x4_predict(Above, yleft, left_stride, b_mode,
dst, dst_stride, top_left);
if (xd->eobs[i])
{
if (xd->eobs[i] > 1)
{
vp8_dequant_idct_add(b->qcoeff, DQC, dst, dst_stride);
}
else
{
vp8_dc_only_idct_add
(b->qcoeff[0] * DQC[0],
dst, dst_stride,
dst, dst_stride);
vpx_memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0]));
}
}
}
}
}
else
{
vp8_build_inter_predictors_mb(xd);
}
#if CONFIG_ERROR_CONCEALMENT
if (corruption_detected)
{
return;
}
#endif
if(!xd->mode_info_context->mbmi.mb_skip_coeff)
{
/* dequantization and idct */
if (mode != B_PRED)
{
short *DQC = xd->dequant_y1;
if (mode != SPLITMV)
{
BLOCKD *b = &xd->block[24];
/* do 2nd order transform on the dc block */
if (xd->eobs[24] > 1)
{
vp8_dequantize_b(b, xd->dequant_y2);
vp8_short_inv_walsh4x4(&b->dqcoeff[0],
xd->qcoeff);
vpx_memset(b->qcoeff, 0, 16 * sizeof(b->qcoeff[0]));
}
else
{
b->dqcoeff[0] = b->qcoeff[0] * xd->dequant_y2[0];
vp8_short_inv_walsh4x4_1(&b->dqcoeff[0],
xd->qcoeff);
vpx_memset(b->qcoeff, 0, 2 * sizeof(b->qcoeff[0]));
}
/* override the dc dequant constant in order to preserve the
* dc components
*/
DQC = xd->dequant_y1_dc;
}
vp8_dequant_idct_add_y_block
(xd->qcoeff, DQC,
xd->dst.y_buffer,
xd->dst.y_stride, xd->eobs);
}
vp8_dequant_idct_add_uv_block
(xd->qcoeff+16*16, xd->dequant_uv,
xd->dst.u_buffer, xd->dst.v_buffer,
xd->dst.uv_stride, xd->eobs+16);
}
}
static void decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd,
unsigned int mb_idx)
{
MB_PREDICTION_MODE mode;
int i;
int corruption_detected = 0;
int eobtotal;
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);
/* Special case: Force the loopfilter to skip when eobtotal is zero */
xd->mode_info_context->mbmi.mb_skip_coeff = (eobtotal==0);
}
mode = xd->mode_info_context->mbmi.mode;
if (xd->segmentation_enabled)
mb_init_dequantizer(pbi, xd);
#if PROFILE_OUTPUT
if (xd->frame_type == KEY_FRAME)
printf("Intra-Coded MB\n");
else{
if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME){
printf("Intra-Coded Inter-Frame MB\n");
} else {
printf("Inter-Coded MB\n");
}
}
#endif
#if CONFIG_OPENCL && (ENABLE_CL_IDCT_DEQUANT || ENABLE_CL_SUBPIXEL)
//If OpenCL is enabled and initialized, use CL-specific decoder for remains
//of MB decoding.
if (cl_initialized == CL_SUCCESS){
vp8_decode_macroblock_cl(pbi, xd, eobtotal);
return;
}
#endif
#if CONFIG_ERROR_CONCEALMENT
if(pbi->ec_active)
{
int throw_residual;
/* 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 ((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);
corruption_detected = 1;
/* force idct to be skipped for B_PRED and use the
* prediction only for reconstruction
* */
vpx_memset(xd->eobs, 0, 25);
}
}
#endif
/* do prediction */
if (xd->mode_info_context->mbmi.ref_frame == INTRA_FRAME)
{
vp8_build_intra_predictors_mbuv_s(xd);
if (mode != B_PRED)
{
vp8_build_intra_predictors_mby_s(xd);
}
else
{
short *DQC = xd->dequant_y1;
/* clear out residual eob info */
if(xd->mode_info_context->mbmi.mb_skip_coeff)
vpx_memset(xd->eobs, 0, 25);
vp8_intra_prediction_down_copy(xd);
for (i = 0; i < 16; i++)
{
BLOCKD *b = &xd->block[i];
int b_mode = xd->mode_info_context->bmi[i].as_mode;
vp8_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)
{
vp8_dequant_idct_add
(&b->qcoeff_base[b->qcoeff_offset], DQC,
*(b->base_dst) + b->dst, b->dst_stride);
}
else
{
vp8_dc_only_idct_add
(b->qcoeff_base[b->qcoeff_offset] * DQC[0],
*(b->base_dst) + b->dst, b->dst_stride,
*(b->base_dst) + b->dst, b->dst_stride);
((int *)&b->qcoeff_base[b->qcoeff_offset])[0] = 0;
}
}
}
}
}
else
{
vp8_build_inter_predictors_mb(xd);
}
#if CONFIG_ERROR_CONCEALMENT
if (corruption_detected)
{
return;
}
#endif
if(!xd->mode_info_context->mbmi.mb_skip_coeff)
{
/* dequantization and idct */
if (mode != B_PRED)
{
short *DQC = xd->dequant_y1;
if (mode != SPLITMV)
{
BLOCKD *b = &xd->block[24];
short *qcoeff = &b->qcoeff_base[b->qcoeff_offset];
/* do 2nd order transform on the dc block */
if (xd->eobs[24] > 1)
{
vp8_dequantize_b(b, xd->dequant_y2);
vp8_short_inv_walsh4x4(&b->dqcoeff_base[b->dqcoeff_offset],
xd->qcoeff);
((int *)qcoeff)[0] = 0;
((int *)qcoeff)[1] = 0;
((int *)qcoeff)[2] = 0;
((int *)qcoeff)[3] = 0;
((int *)qcoeff)[4] = 0;
((int *)qcoeff)[5] = 0;
((int *)qcoeff)[6] = 0;
((int *)qcoeff)[7] = 0;
}
else
{
b->dqcoeff_base[b->dqcoeff_offset] = qcoeff[0] * xd->dequant_y2[0];
vp8_short_inv_walsh4x4_1(&b->dqcoeff_base[b->dqcoeff_offset],
xd->qcoeff);
((int *)qcoeff)[0] = 0;
}
/* override the dc dequant constant in order to preserve the
* dc components
*/
DQC = xd->dequant_y1_dc;
}
vp8_dequant_idct_add_y_block
(xd->qcoeff, DQC,
xd->dst.y_buffer,
xd->dst.y_stride, xd->eobs);
}
vp8_dequant_idct_add_uv_block
(xd->qcoeff+16*16, xd->dequant_uv,
xd->dst.u_buffer, xd->dst.v_buffer,
xd->dst.uv_stride, xd->eobs+16);
}
}