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Moved fast motion search level decision to function

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Moving this block of code into a function makes the
code easier to read and change.

Change-Id: If4ede570cce1eab1982b188c4d3e4fd3d4db236e
This commit is contained in:
Adrian Grange
2013-08-02 17:19:29 -07:00
parent aae6a4c895
commit 83ee80c045
1 changed files with 103 additions and 93 deletions
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196
vp9/encoder/vp9_encodeframe.c
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@@ -55,6 +55,9 @@ static void adjust_act_zbin(VP9_COMP *cpi, MACROBLOCK *x);
*/
#define VP9_ACTIVITY_AVG_MIN (64)
/* Motion vector component magnitude threshold for defining fast motion. */
#define FAST_MOTION_MV_THRESH (24)
/* This is used as a reference when computing the source variance for the
* purposes of activity masking.
* Eventually this should be replaced by custom no-reference routines,
@@ -1505,6 +1508,102 @@ static void rd_auto_partition_range(VP9_COMP *cpi,
}
}
static void compute_fast_motion_search_level(VP9_COMP *const cpi,
const BLOCK_SIZE_TYPE bsize) {
VP9_COMMON *const cm = &cpi->common;
MACROBLOCK *const x = &cpi->mb;
MACROBLOCKD *const xd = &x->e_mbd;
// Only use 8x8 result for non HD videos.
// int use_8x8 = (MIN(cpi->common.width, cpi->common.height) < 720) ? 1 : 0;
int use_8x8 = 1;
if (cm->frame_type && !cpi->is_src_frame_alt_ref &&
((use_8x8 && bsize == BLOCK_16X16) ||
bsize == BLOCK_32X32 || bsize == BLOCK_64X64)) {
int ref0 = 0, ref1 = 0, ref2 = 0, ref3 = 0;
PICK_MODE_CONTEXT *block_context = NULL;
if (bsize == BLOCK_16X16) {
block_context = x->sb8x8_context[xd->sb_index][xd->mb_index];
} else if (bsize == BLOCK_32X32) {
block_context = x->mb_context[xd->sb_index];
} else if (bsize == BLOCK_64X64) {
block_context = x->sb32_context;
}
if (block_context) {
ref0 = block_context[0].mic.mbmi.ref_frame[0];
ref1 = block_context[1].mic.mbmi.ref_frame[0];
ref2 = block_context[2].mic.mbmi.ref_frame[0];
ref3 = block_context[3].mic.mbmi.ref_frame[0];
}
// Currently, only consider 4 inter reference frames.
if (ref0 && ref1 && ref2 && ref3) {
int d01, d23, d02, d13;
// Motion vectors for the four subblocks.
int16_t mvr0 = block_context[0].mic.mbmi.mv[0].as_mv.row;
int16_t mvc0 = block_context[0].mic.mbmi.mv[0].as_mv.col;
int16_t mvr1 = block_context[1].mic.mbmi.mv[0].as_mv.row;
int16_t mvc1 = block_context[1].mic.mbmi.mv[0].as_mv.col;
int16_t mvr2 = block_context[2].mic.mbmi.mv[0].as_mv.row;
int16_t mvc2 = block_context[2].mic.mbmi.mv[0].as_mv.col;
int16_t mvr3 = block_context[3].mic.mbmi.mv[0].as_mv.row;
int16_t mvc3 = block_context[3].mic.mbmi.mv[0].as_mv.col;
// Adjust sign if ref is alt_ref.
if (cm->ref_frame_sign_bias[ref0]) {
mvr0 *= -1;
mvc0 *= -1;
}
if (cm->ref_frame_sign_bias[ref1]) {
mvr1 *= -1;
mvc1 *= -1;
}
if (cm->ref_frame_sign_bias[ref2]) {
mvr2 *= -1;
mvc2 *= -1;
}
if (cm->ref_frame_sign_bias[ref3]) {
mvr3 *= -1;
mvc3 *= -1;
}
// Calculate mv distances.
d01 = MAX(abs(mvr0 - mvr1), abs(mvc0 - mvc1));
d23 = MAX(abs(mvr2 - mvr3), abs(mvc2 - mvc3));
d02 = MAX(abs(mvr0 - mvr2), abs(mvc0 - mvc2));
d13 = MAX(abs(mvr1 - mvr3), abs(mvc1 - mvc3));
if (d01 < FAST_MOTION_MV_THRESH && d23 < FAST_MOTION_MV_THRESH &&
d02 < FAST_MOTION_MV_THRESH && d13 < FAST_MOTION_MV_THRESH) {
// Set fast motion search level.
x->fast_ms = 1;
// Calculate prediction MV.
x->pred_mv.as_mv.row = (mvr0 + mvr1 + mvr2 + mvr3) >> 2;
x->pred_mv.as_mv.col = (mvc0 + mvc1 + mvc2 + mvc3) >> 2;
if (ref0 == ref1 && ref1 == ref2 && ref2 == ref3 &&
d01 < 2 && d23 < 2 && d02 < 2 && d13 < 2) {
// Set fast motion search level.
x->fast_ms = 2;
if (!d01 && !d23 && !d02 && !d13) {
x->fast_ms = 3;
x->subblock_ref = ref0;
}
}
}
}
}
}
// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are
// unlikely to be selected depending on previous rate-distortion optimization
// results, for encoding speed-up.
@@ -1587,99 +1686,10 @@ static void rd_pick_partition(VP9_COMP *cpi, TOKENEXTRA **tp, int mi_row,
x->pred_mv.as_int = 0;
x->subblock_ref = 0;
if (cpi->sf.using_small_partition_info &&
(!cpi->sf.auto_min_max_partition_size ||
(bsize <= cpi->sf.max_partition_size &&
bsize >= cpi->sf.min_partition_size))) {
// Only use 8x8 result for non HD videos.
// int use_8x8 = (MIN(cpi->common.width, cpi->common.height) < 720) ? 1 : 0;
int use_8x8 = 1;
if (cm->frame_type && !cpi->is_src_frame_alt_ref &&
((use_8x8 && bsize == BLOCK_16X16) ||
bsize == BLOCK_32X32 || bsize == BLOCK_64X64)) {
int ref0 = 0, ref1 = 0, ref2 = 0, ref3 = 0;
PICK_MODE_CONTEXT *block_context = NULL;
if (bsize == BLOCK_16X16) {
block_context = x->sb8x8_context[xd->sb_index][xd->mb_index];
} else if (bsize == BLOCK_32X32) {
block_context = x->mb_context[xd->sb_index];
} else if (bsize == BLOCK_64X64) {
block_context = x->sb32_context;
}
if (block_context) {
ref0 = block_context[0].mic.mbmi.ref_frame[0];
ref1 = block_context[1].mic.mbmi.ref_frame[0];
ref2 = block_context[2].mic.mbmi.ref_frame[0];
ref3 = block_context[3].mic.mbmi.ref_frame[0];
}
// Currently, only consider 4 inter ref frames.
if (ref0 && ref1 && ref2 && ref3) {
int16_t mvr0 = 0, mvc0 = 0, mvr1 = 0, mvc1 = 0, mvr2 = 0, mvc2 = 0,
mvr3 = 0, mvc3 = 0;
int d01, d23, d02, d13; // motion vector distance between 2 blocks
// Get each subblock's motion vectors.
mvr0 = block_context[0].mic.mbmi.mv[0].as_mv.row;
mvc0 = block_context[0].mic.mbmi.mv[0].as_mv.col;
mvr1 = block_context[1].mic.mbmi.mv[0].as_mv.row;
mvc1 = block_context[1].mic.mbmi.mv[0].as_mv.col;
mvr2 = block_context[2].mic.mbmi.mv[0].as_mv.row;
mvc2 = block_context[2].mic.mbmi.mv[0].as_mv.col;
mvr3 = block_context[3].mic.mbmi.mv[0].as_mv.row;
mvc3 = block_context[3].mic.mbmi.mv[0].as_mv.col;
// Adjust sign if ref is alt_ref
if (cm->ref_frame_sign_bias[ref0]) {
mvr0 *= -1;
mvc0 *= -1;
}
if (cm->ref_frame_sign_bias[ref1]) {
mvr1 *= -1;
mvc1 *= -1;
}
if (cm->ref_frame_sign_bias[ref2]) {
mvr2 *= -1;
mvc2 *= -1;
}
if (cm->ref_frame_sign_bias[ref3]) {
mvr3 *= -1;
mvc3 *= -1;
}
// Calculate mv distances.
d01 = MAX(abs(mvr0 - mvr1), abs(mvc0 - mvc1));
d23 = MAX(abs(mvr2 - mvr3), abs(mvc2 - mvc3));
d02 = MAX(abs(mvr0 - mvr2), abs(mvc0 - mvc2));
d13 = MAX(abs(mvr1 - mvr3), abs(mvc1 - mvc3));
if (d01 < 24 && d23 < 24 && d02 < 24 && d13 < 24) {
// Set fast motion search level.
x->fast_ms = 1;
// Calculate prediction MV
x->pred_mv.as_mv.row = (mvr0 + mvr1 + mvr2 + mvr3) >> 2;
x->pred_mv.as_mv.col = (mvc0 + mvc1 + mvc2 + mvc3) >> 2;
if (ref0 == ref1 && ref1 == ref2 && ref2 == ref3 &&
d01 < 2 && d23 < 2 && d02 < 2 && d13 < 2) {
// Set fast motion search level.
x->fast_ms = 2;
if (!d01 && !d23 && !d02 && !d13) {
x->fast_ms = 3;
x->subblock_ref = ref0;
}
}
}
}
}
// Use 4 subblocks' motion estimation results to speed up current
// partition's checking.
if (cpi->sf.using_small_partition_info) {
compute_fast_motion_search_level(cpi, bsize);
}
if (!cpi->sf.auto_min_max_partition_size ||