Commit 3f31b297 authored by Dmitry Kovalev's avatar Dmitry Kovalev

Adding encode_quantization function.

Change-Id: Ib7448f7f325ba34a3cba8ab3129028e31e593cf5
parent 089ed30d
......@@ -1242,16 +1242,6 @@ static void update_coef_probs(VP9_COMP* const cpi, vp9_writer* const bc) {
FILE *vpxlogc = 0;
#endif
static void put_delta_q(vp9_writer *bc, int delta_q) {
if (delta_q != 0) {
vp9_write_bit(bc, 1);
vp9_write_literal(bc, abs(delta_q), 4);
vp9_write_bit(bc, delta_q < 0);
} else {
vp9_write_bit(bc, 0);
}
}
static void decide_kf_ymode_entropy(VP9_COMP *cpi) {
int mode_cost[MB_MODE_COUNT];
int bestcost = INT_MAX;
......@@ -1298,9 +1288,21 @@ static void segment_reference_frames(VP9_COMP *cpi) {
}
}
static void encode_loopfilter(MACROBLOCKD *xd, vp9_writer *w) {
static void encode_loopfilter(VP9_COMMON *pc, MACROBLOCKD *xd, vp9_writer *w) {
int i;
// Encode the loop filter level and type
vp9_write_literal(w, pc->filter_level, 6);
vp9_write_literal(w, pc->sharpness_level, 3);
#if CONFIG_LOOP_DERING
if (pc->dering_enabled) {
vp9_write_bit(w, 1);
vp9_write_literal(w, pc->dering_enabled - 1, 4);
} else {
vp9_write_bit(w, 0);
}
#endif
// Write out loop filter deltas applied at the MB level based on mode or
// ref frame (if they are enabled).
vp9_write_bit(w, xd->mode_ref_lf_delta_enabled);
......@@ -1354,6 +1356,24 @@ static void encode_loopfilter(MACROBLOCKD *xd, vp9_writer *w) {
}
}
static void put_delta_q(vp9_writer *bc, int delta_q) {
if (delta_q != 0) {
vp9_write_bit(bc, 1);
vp9_write_literal(bc, abs(delta_q), 4);
vp9_write_bit(bc, delta_q < 0);
} else {
vp9_write_bit(bc, 0);
}
}
static void encode_quantization(VP9_COMMON *pc, vp9_writer *w) {
vp9_write_literal(w, pc->base_qindex, QINDEX_BITS);
put_delta_q(w, pc->y_dc_delta_q);
put_delta_q(w, pc->uv_dc_delta_q);
put_delta_q(w, pc->uv_ac_delta_q);
}
static void encode_segmentation(VP9_COMP *cpi, vp9_writer *w) {
int i, j;
VP9_COMMON *const pc = &cpi->common;
......@@ -1495,27 +1515,9 @@ void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, unsigned long *size) {
// lossless mode: note this needs to be before loopfilter
vp9_write_bit(&header_bc, cpi->mb.e_mbd.lossless);
// Encode the loop filter level and type
vp9_write_literal(&header_bc, pc->filter_level, 6);
vp9_write_literal(&header_bc, pc->sharpness_level, 3);
#if CONFIG_LOOP_DERING
if (pc->dering_enabled) {
vp9_write_bit(&header_bc, 1);
vp9_write_literal(&header_bc, pc->dering_enabled - 1, 4);
} else {
vp9_write_bit(&header_bc, 0);
}
#endif
encode_loopfilter(xd, &header_bc);
// Frame Q baseline quantizer index
vp9_write_literal(&header_bc, pc->base_qindex, QINDEX_BITS);
encode_loopfilter(pc, xd, &header_bc);
// Transmit Dc, Second order and Uv quantizer delta information
put_delta_q(&header_bc, pc->y_dc_delta_q);
put_delta_q(&header_bc, pc->uv_dc_delta_q);
put_delta_q(&header_bc, pc->uv_ac_delta_q);
encode_quantization(pc, &header_bc);
// When there is a key frame all reference buffers are updated using the new key frame
if (pc->frame_type != KEY_FRAME) {
......
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