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Adding encode_loopfilter function.

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Moving code from huge vp9_pack_bitstream to encode_loopfilter function.

Change-Id: Idceb836da5b346cd54fc33402283e7cfb6d9097d
This commit is contained in:
Dmitry Kovalev 2013-05-02 14:23:56 -07:00
parent 519d9f3e16
commit 20eef67573
1 changed files with 57 additions and 51 deletions
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108
vp9/encoder/vp9_bitstream.c
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@ -1716,6 +1716,62 @@ 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) {
int i, j;
VP9_COMMON *const pc = &cpi->common;
@ -1870,57 +1926,7 @@ void vp9_pack_bitstream(VP9_COMP *cpi, uint8_t *dest, unsigned long *size) {
}
#endif
// Write out loop filter deltas applied at the MB level based on mode or ref frame (if they are enabled).
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);
}
}
}
}
encode_loopfilter(xd, &header_bc);
// TODO(jkoleszar): remove these unused bits
vp9_write_literal(&header_bc, 0, 2);