Separate quantizaton for U and V plane
This commit adds code to support separate regular quantization for U
and V. They currently always use same quantization parameter, hence
this commit does not change bitstream at all.
Change-Id: Ifaf43e4fd0bcd01b1483f2dacf3ac498003d5db1
diff --git a/av1/encoder/av1_quantize.c b/av1/encoder/av1_quantize.c
index 701c1cb..f985a42 100644
--- a/av1/encoder/av1_quantize.c
+++ b/av1/encoder/av1_quantize.c
@@ -1533,8 +1533,9 @@
}
void av1_build_quantizer(aom_bit_depth_t bit_depth, int y_dc_delta_q,
- int uv_dc_delta_q, int uv_ac_delta_q,
- QUANTS *const quants, Dequants *const deq) {
+ int u_dc_delta_q, int u_ac_delta_q, int v_dc_delta_q,
+ int v_ac_delta_q, QUANTS *const quants,
+ Dequants *const deq) {
int i, q, quant_Q3, quant_QTX;
for (q = 0; q < QINDEX_RANGE; q++) {
@@ -1557,19 +1558,33 @@
deq->y_dequant_QTX[q][i] = quant_QTX;
deq->y_dequant_Q3[q][i] = quant_Q3;
- // uv quantizer setup with original coeff shift of Q3
- quant_Q3 = i == 0 ? av1_dc_quant(q, uv_dc_delta_q, bit_depth)
- : av1_ac_quant(q, uv_ac_delta_q, bit_depth);
- // uv quantizer with TX scale; right now, it's still Q3 as above;
+ // u quantizer setup with original coeff shift of Q3
+ quant_Q3 = i == 0 ? av1_dc_quant(q, u_dc_delta_q, bit_depth)
+ : av1_ac_quant(q, u_ac_delta_q, bit_depth);
+ // u quantizer with TX scale; right now, it's still Q3 as above;
quant_QTX = quant_Q3;
- invert_quant(&quants->uv_quant[q][i], &quants->uv_quant_shift[q][i],
+ invert_quant(&quants->u_quant[q][i], &quants->u_quant_shift[q][i],
quant_QTX);
- quants->uv_quant_fp[q][i] = (1 << 16) / quant_QTX;
- quants->uv_round_fp[q][i] = (qrounding_factor_fp * quant_QTX) >> 7;
- quants->uv_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, 7);
- quants->uv_round[q][i] = (qrounding_factor * quant_QTX) >> 7;
- deq->uv_dequant_QTX[q][i] = quant_QTX;
- deq->uv_dequant_Q3[q][i] = quant_Q3;
+ quants->u_quant_fp[q][i] = (1 << 16) / quant_QTX;
+ quants->u_round_fp[q][i] = (qrounding_factor_fp * quant_QTX) >> 7;
+ quants->u_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, 7);
+ quants->u_round[q][i] = (qrounding_factor * quant_QTX) >> 7;
+ deq->u_dequant_QTX[q][i] = quant_QTX;
+ deq->u_dequant_Q3[q][i] = quant_Q3;
+
+ // v quantizer setup with original coeff shift of Q3
+ quant_Q3 = i == 0 ? av1_dc_quant(q, v_dc_delta_q, bit_depth)
+ : av1_ac_quant(q, v_ac_delta_q, bit_depth);
+ // v quantizer with TX scale; right now, it's still Q3 as above;
+ quant_QTX = quant_Q3;
+ invert_quant(&quants->v_quant[q][i], &quants->v_quant_shift[q][i],
+ quant_QTX);
+ quants->v_quant_fp[q][i] = (1 << 16) / quant_QTX;
+ quants->v_round_fp[q][i] = (qrounding_factor_fp * quant_QTX) >> 7;
+ quants->v_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant_QTX, 7);
+ quants->v_round[q][i] = (qrounding_factor * quant_QTX) >> 7;
+ deq->v_dequant_QTX[q][i] = quant_QTX;
+ deq->v_dequant_Q3[q][i] = quant_Q3;
}
#if CONFIG_NEW_QUANT
@@ -1577,13 +1592,17 @@
for (dq = 0; dq < QUANT_PROFILES; dq++) {
for (i = 0; i < COEF_BANDS; i++) {
const int y_quant = deq->y_dequant_QTX[q][i != 0];
- const int uvquant = deq->uv_dequant_QTX[q][i != 0];
+ const int u_quant = deq->u_dequant_QTX[q][i != 0];
+ const int v_quant = deq->v_dequant_QTX[q][i != 0];
av1_get_dequant_val_nuq(y_quant, i,
deq->y_dequant_val_nuq_QTX[dq][q][i],
quants->y_cuml_bins_nuq[dq][q][i], dq);
- av1_get_dequant_val_nuq(uvquant, i,
- deq->uv_dequant_val_nuq_QTX[dq][q][i],
- quants->uv_cuml_bins_nuq[dq][q][i], dq);
+ av1_get_dequant_val_nuq(u_quant, i,
+ deq->u_dequant_val_nuq_QTX[dq][q][i],
+ quants->u_cuml_bins_nuq[dq][q][i], dq);
+ av1_get_dequant_val_nuq(v_quant, i,
+ deq->v_dequant_val_nuq_QTX[dq][q][i],
+ quants->v_cuml_bins_nuq[dq][q][i], dq);
}
}
#endif // CONFIG_NEW_QUANT
@@ -1598,14 +1617,22 @@
deq->y_dequant_QTX[q][i] = deq->y_dequant_QTX[q][1];
deq->y_dequant_Q3[q][i] = deq->y_dequant_Q3[q][1];
- quants->uv_quant[q][i] = quants->uv_quant[q][1];
- quants->uv_quant_fp[q][i] = quants->uv_quant_fp[q][1];
- quants->uv_round_fp[q][i] = quants->uv_round_fp[q][1];
- quants->uv_quant_shift[q][i] = quants->uv_quant_shift[q][1];
- quants->uv_zbin[q][i] = quants->uv_zbin[q][1];
- quants->uv_round[q][i] = quants->uv_round[q][1];
- deq->uv_dequant_QTX[q][i] = deq->uv_dequant_QTX[q][1];
- deq->uv_dequant_Q3[q][i] = deq->uv_dequant_Q3[q][1];
+ quants->u_quant[q][i] = quants->u_quant[q][1];
+ quants->u_quant_fp[q][i] = quants->u_quant_fp[q][1];
+ quants->u_round_fp[q][i] = quants->u_round_fp[q][1];
+ quants->u_quant_shift[q][i] = quants->u_quant_shift[q][1];
+ quants->u_zbin[q][i] = quants->u_zbin[q][1];
+ quants->u_round[q][i] = quants->u_round[q][1];
+ deq->u_dequant_QTX[q][i] = deq->u_dequant_QTX[q][1];
+ deq->u_dequant_Q3[q][i] = deq->u_dequant_Q3[q][1];
+ quants->v_quant[q][i] = quants->u_quant[q][1];
+ quants->v_quant_fp[q][i] = quants->v_quant_fp[q][1];
+ quants->v_round_fp[q][i] = quants->v_round_fp[q][1];
+ quants->v_quant_shift[q][i] = quants->v_quant_shift[q][1];
+ quants->v_zbin[q][i] = quants->v_zbin[q][1];
+ quants->v_round[q][i] = quants->v_round[q][1];
+ deq->v_dequant_QTX[q][i] = deq->v_dequant_QTX[q][1];
+ deq->v_dequant_Q3[q][i] = deq->v_dequant_Q3[q][1];
}
}
}
@@ -1614,8 +1641,9 @@
AV1_COMMON *const cm = &cpi->common;
QUANTS *const quants = &cpi->quants;
Dequants *const dequants = &cpi->dequants;
- av1_build_quantizer(cm->bit_depth, cm->y_dc_delta_q, cm->uv_dc_delta_q,
- cm->uv_ac_delta_q, quants, dequants);
+ av1_build_quantizer(cm->bit_depth, cm->y_dc_delta_q, cm->u_dc_delta_q,
+ cm->u_ac_delta_q, cm->v_dc_delta_q, cm->v_ac_delta_q,
+ quants, dequants);
}
void av1_init_plane_quantizers(const AV1_COMP *cpi, MACROBLOCK *x,
@@ -1647,7 +1675,6 @@
const int qindex = av1_get_qindex(&cm->seg, segment_id, current_q_index);
#endif
const int rdmult = av1_compute_rd_mult(cpi, qindex + cm->y_dc_delta_q);
- int i;
#if CONFIG_AOM_QM
int minqm = cm->min_qmlevel;
int maxqm = cm->max_qmlevel;
@@ -1683,32 +1710,56 @@
}
#endif // CONFIG_NEW_QUANT
- // UV
- for (i = 1; i < 3; i++) {
- x->plane[i].quant_QTX = quants->uv_quant[qindex];
- x->plane[i].quant_fp_QTX = quants->uv_quant_fp[qindex];
- x->plane[i].round_fp_QTX = quants->uv_round_fp[qindex];
- x->plane[i].quant_shift_QTX = quants->uv_quant_shift[qindex];
- x->plane[i].zbin_QTX = quants->uv_zbin[qindex];
- x->plane[i].round_QTX = quants->uv_round[qindex];
- x->plane[i].dequant_QTX = cpi->dequants.uv_dequant_QTX[qindex];
+ // U
+ {
+ x->plane[1].quant_QTX = quants->u_quant[qindex];
+ x->plane[1].quant_fp_QTX = quants->u_quant_fp[qindex];
+ x->plane[1].round_fp_QTX = quants->u_round_fp[qindex];
+ x->plane[1].quant_shift_QTX = quants->u_quant_shift[qindex];
+ x->plane[1].zbin_QTX = quants->u_zbin[qindex];
+ x->plane[1].round_QTX = quants->u_round[qindex];
+ x->plane[1].dequant_QTX = cpi->dequants.u_dequant_QTX[qindex];
#if CONFIG_AOM_QM
- memcpy(&xd->plane[i].seg_qmatrix[segment_id], cm->gqmatrix[qmlevel][1],
+ memcpy(&xd->plane[1].seg_qmatrix[segment_id], cm->gqmatrix[qmlevel][1],
sizeof(cm->gqmatrix[qmlevel][1]));
- memcpy(&xd->plane[i].seg_iqmatrix[segment_id], cm->giqmatrix[qmlevel][1],
+ memcpy(&xd->plane[1].seg_iqmatrix[segment_id], cm->giqmatrix[qmlevel][1],
sizeof(cm->giqmatrix[qmlevel][1]));
#endif
- x->plane[i].dequant_QTX = cpi->dequants.uv_dequant_QTX[qindex];
- xd->plane[i].dequant_Q3 = cpi->dequants.uv_dequant_Q3[qindex];
+ x->plane[1].dequant_QTX = cpi->dequants.u_dequant_QTX[qindex];
+ xd->plane[1].dequant_Q3 = cpi->dequants.u_dequant_Q3[qindex];
#if CONFIG_NEW_QUANT
for (dq = 0; dq < QUANT_PROFILES; dq++) {
- x->plane[i].cuml_bins_nuq[dq] = quants->uv_cuml_bins_nuq[dq][qindex];
- x->plane[i].dequant_val_nuq_QTX[dq] =
- cpi->dequants.uv_dequant_val_nuq_QTX[dq][qindex];
+ x->plane[1].cuml_bins_nuq[dq] = quants->u_cuml_bins_nuq[dq][qindex];
+ x->plane[1].dequant_val_nuq_QTX[dq] =
+ cpi->dequants.u_dequant_val_nuq_QTX[dq][qindex];
}
#endif // CONFIG_NEW_QUANT
}
-
+ // V
+ {
+ x->plane[2].quant_QTX = quants->v_quant[qindex];
+ x->plane[2].quant_fp_QTX = quants->v_quant_fp[qindex];
+ x->plane[2].round_fp_QTX = quants->v_round_fp[qindex];
+ x->plane[2].quant_shift_QTX = quants->v_quant_shift[qindex];
+ x->plane[2].zbin_QTX = quants->v_zbin[qindex];
+ x->plane[2].round_QTX = quants->v_round[qindex];
+ x->plane[2].dequant_QTX = cpi->dequants.v_dequant_QTX[qindex];
+#if CONFIG_AOM_QM
+ memcpy(&xd->plane[2].seg_qmatrix[segment_id], cm->gqmatrix[qmlevel][1],
+ sizeof(cm->gqmatrix[qmlevel][1]));
+ memcpy(&xd->plane[2].seg_iqmatrix[segment_id], cm->giqmatrix[qmlevel][1],
+ sizeof(cm->giqmatrix[qmlevel][1]));
+#endif
+ x->plane[2].dequant_QTX = cpi->dequants.v_dequant_QTX[qindex];
+ xd->plane[2].dequant_Q3 = cpi->dequants.v_dequant_Q3[qindex];
+#if CONFIG_NEW_QUANT
+ for (dq = 0; dq < QUANT_PROFILES; dq++) {
+ x->plane[2].cuml_bins_nuq[dq] = quants->v_cuml_bins_nuq[dq][qindex];
+ x->plane[2].dequant_val_nuq_QTX[dq] =
+ cpi->dequants.v_dequant_val_nuq_QTX[dq][qindex];
+ }
+#endif // CONFIG_NEW_QUANT
+ }
x->skip_block = segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP);
x->qindex = qindex;
@@ -1733,8 +1784,10 @@
// delta_q changes.
cm->base_qindex = q;
cm->y_dc_delta_q = 0;
- cm->uv_dc_delta_q = 0;
- cm->uv_ac_delta_q = 0;
+ cm->u_dc_delta_q = 0;
+ cm->u_ac_delta_q = 0;
+ cm->v_dc_delta_q = 0;
+ cm->v_ac_delta_q = 0;
}
// Table that converts 0-63 Q-range values passed in outside to the Qindex
