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revised the rate distortion computation for UV

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this commit changed the UV r/d calculation in the mode decision process to
properly account for the rate of 8x8 transform coefficients.

Change-Id: I485f8f35f2b61db0b6539beb32e83481b1cf083b
This commit is contained in:
Yaowu Xu 2012-01-20 15:30:31 -08:00
parent efa9abd028
commit f90983e167
1 changed files with 65 additions and 12 deletions
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77
vp8/encoder/rdopt.c
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@ -739,7 +739,7 @@ static int vp8_rdcost_mby_8x8(MACROBLOCK *mb)
for (b = 0; b < 16; b+=4)
cost += cost_coeffs_8x8(mb, x->block + b, PLANE_TYPE_Y_NO_DC,
ta + vp8_block2above[b], tl + vp8_block2left[b],
ta + vp8_block2above[b+4], tl + vp8_block2left[b+4]);
ta + vp8_block2above[b+1], tl + vp8_block2left[b+4]);
cost += cost_coeffs_2x2(mb, x->block + 24, PLANE_TYPE_Y2,
ta + vp8_block2above[24], tl + vp8_block2left[24]);
@ -1175,18 +1175,9 @@ static int rd_cost_mbuv(MACROBLOCK *mb)
static int rd_inter16x16_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
int *distortion, int fullpixel)
{
#if CONFIG_T8X8
int tx_type = x->e_mbd.mode_info_context->mbmi.txfm_size;
#endif
ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), submbuv)(x->src_diff,
x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
#if CONFIG_T8X8
if( tx_type == TX_8X8 )
vp8_transform_mbuv_8x8(x);
else
#endif
vp8_transform_mbuv(x);
vp8_quantize_mbuv(x);
@ -1195,6 +1186,49 @@ static int rd_inter16x16_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
}
#if CONFIG_T8X8
static int rd_cost_mbuv_8x8(MACROBLOCK *mb)
{
int b;
int cost = 0;
MACROBLOCKD *x = &mb->e_mbd;
ENTROPY_CONTEXT_PLANES t_above, t_left;
ENTROPY_CONTEXT *ta;
ENTROPY_CONTEXT *tl;
vpx_memcpy(&t_above, mb->e_mbd.above_context, sizeof(ENTROPY_CONTEXT_PLANES));
vpx_memcpy(&t_left, mb->e_mbd.left_context, sizeof(ENTROPY_CONTEXT_PLANES));
ta = (ENTROPY_CONTEXT *)&t_above;
tl = (ENTROPY_CONTEXT *)&t_left;
for (b = 16; b < 24; b+=4)
cost += cost_coeffs_8x8(mb, x->block + b, PLANE_TYPE_UV,
ta + vp8_block2above[b],
tl + vp8_block2left[b],
ta + vp8_block2above[b+1],
tl + vp8_block2left[b+2]);
return cost;
}
static int rd_inter16x16_uv_8x8(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
int *distortion, int fullpixel)
{
ENCODEMB_INVOKE(IF_RTCD(&cpi->rtcd.encodemb), submbuv)(x->src_diff,
x->src.u_buffer, x->src.v_buffer, x->e_mbd.predictor, x->src.uv_stride);
vp8_transform_mbuv_8x8(x);
vp8_quantize_mbuv_8x8(x);
*rate = rd_cost_mbuv_8x8(x);
*distortion = ENCODEMB_INVOKE(&cpi->rtcd.encodemb, mbuverr)(x) / 4;
return RDCOST(x->rdmult, x->rddiv, *rate, *distortion);
}
#endif
static int rd_inter4x4_uv(VP8_COMP *cpi, MACROBLOCK *x, int *rate,
int *distortion, int fullpixel)
@ -2776,7 +2810,17 @@ void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int
// UV cost and distortion
vp8_build_inter16x16_predictors_mbuv(&x->e_mbd);
rd_inter16x16_uv(cpi, x, &rate_uv, &distortion_uv, cpi->common.full_pixel);
#if CONFIG_T8X8
if(cpi->common.txfm_mode == ALLOW_8X8)
rd_inter16x16_uv_8x8(cpi, x, &rate_uv,
&distortion_uv,
cpi->common.full_pixel);
else
#endif
rd_inter16x16_uv(cpi, x, &rate_uv,
&distortion_uv,
cpi->common.full_pixel);
rate2 += rate_uv;
distortion2 += distortion_uv;
mode_excluded = cpi->common.dual_pred_mode == DUAL_PREDICTION_ONLY;
@ -2864,7 +2908,16 @@ void vp8_rd_pick_inter_mode(VP8_COMP *cpi, MACROBLOCK *x, int recon_yoffset, int
distortion2 += distortion;
/* UV cost and distortion */
rd_inter16x16_uv(cpi, x, &rate_uv, &distortion_uv, cpi->common.full_pixel);
#if CONFIG_T8X8
if(cpi->common.txfm_mode == ALLOW_8X8)
rd_inter16x16_uv_8x8(cpi, x, &rate_uv,
&distortion_uv,
cpi->common.full_pixel);
else
#endif
rd_inter16x16_uv(cpi, x, &rate_uv,
&distortion_uv,
cpi->common.full_pixel);
rate2 += rate_uv;
distortion2 += distortion_uv;