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Merge "Adding encode_loopfilter function." into experimental

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This commit is contained in:
Dmitry Kovalev 2013-05-07 12:59:12 -07:00 committed by Gerrit Code Review
commit 3cd8897623
1 changed files with 57 additions and 51 deletions
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108
vp9/encoder/vp9_bitstream.c
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@ -1618,6 +1618,62 @@ static void segment_reference_frames(VP9_COMP *cpi) {
} }
} }
static void encode_loopfilter(MACROBLOCKD *xd, vp9_writer *w) {
int i;
// 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);
if (xd->mode_ref_lf_delta_enabled) {
// Do the deltas need to be updated
vp9_write_bit(w, xd->mode_ref_lf_delta_update);
if (xd->mode_ref_lf_delta_update) {
// Send update
for (i = 0; i < MAX_REF_LF_DELTAS; i++) {
const int delta = xd->ref_lf_deltas[i];
// Frame level data
if (delta != xd->last_ref_lf_deltas[i]) {
xd->last_ref_lf_deltas[i] = delta;
vp9_write_bit(w, 1);
if (delta > 0) {
vp9_write_literal(w, delta & 0x3F, 6);
vp9_write_bit(w, 0); // sign
} else {
assert(delta < 0);
vp9_write_literal(w, (-delta) & 0x3F, 6);
vp9_write_bit(w, 1); // sign
}
} else {
vp9_write_bit(w, 0);
}
}
// Send update
for (i = 0; i < MAX_MODE_LF_DELTAS; i++) {
const int delta = xd->mode_lf_deltas[i];
if (delta != xd->last_mode_lf_deltas[i]) {
xd->last_mode_lf_deltas[i] = delta;
vp9_write_bit(w, 1);
if (delta > 0) {
vp9_write_literal(w, delta & 0x3F, 6);
vp9_write_bit(w, 0); // sign
} else {
assert(delta < 0);
vp9_write_literal(w, (-delta) & 0x3F, 6);
vp9_write_bit(w, 1); // sign
}
} else {
vp9_write_bit(w, 0);
}
}
}
}
}
static void encode_segmentation(VP9_COMP *cpi, vp9_writer *w) { static void encode_segmentation(VP9_COMP *cpi, vp9_writer *w) {
int i, j; int i, j;
VP9_COMMON *const pc = &cpi->common; VP9_COMMON *const pc = &cpi->common;
@ -1772,57 +1828,7 @@ void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, unsigned long *size) {
} }
#endif #endif
// Write out loop filter deltas applied at the MB level based on mode or ref frame (if they are enabled). encode_loopfilter(xd, &header_bc);
vp9_write_bit(&header_bc, (xd->mode_ref_lf_delta_enabled) ? 1 : 0);
if (xd->mode_ref_lf_delta_enabled) {
// Do the deltas need to be updated
vp9_write_bit(&header_bc, xd->mode_ref_lf_delta_update);
if (xd->mode_ref_lf_delta_update) {
// Send update
for (i = 0; i < MAX_REF_LF_DELTAS; i++) {
const int delta = xd->ref_lf_deltas[i];
// Frame level data
if (delta != xd->last_ref_lf_deltas[i]) {
xd->last_ref_lf_deltas[i] = delta;
vp9_write_bit(&header_bc, 1);
if (delta > 0) {
vp9_write_literal(&header_bc, delta & 0x3F, 6);
vp9_write_bit(&header_bc, 0); // sign
} else {
assert(delta < 0);
vp9_write_literal(&header_bc, (-delta) & 0x3F, 6);
vp9_write_bit(&header_bc, 1); // sign
}
} else {
vp9_write_bit(&header_bc, 0);
}
}
// Send update
for (i = 0; i < MAX_MODE_LF_DELTAS; i++) {
const int delta = xd->mode_lf_deltas[i];
if (delta != xd->last_mode_lf_deltas[i]) {
xd->last_mode_lf_deltas[i] = delta;
vp9_write_bit(&header_bc, 1);
if (delta > 0) {
vp9_write_literal(&header_bc, delta & 0x3F, 6);
vp9_write_bit(&header_bc, 0); // sign
} else {
assert(delta < 0);
vp9_write_literal(&header_bc, (-delta) & 0x3F, 6);
vp9_write_bit(&header_bc, 1); // sign
}
} else {
vp9_write_bit(&header_bc, 0);
}
}
}
}
// Frame Q baseline quantizer index // Frame Q baseline quantizer index
vp9_write_literal(&header_bc, pc->base_qindex, QINDEX_BITS); vp9_write_literal(&header_bc, pc->base_qindex, QINDEX_BITS);