ref: e51daf90fd83d4cf0afcb402a5f6382ce817e5d2
parent: f7b368dc5a41d5be020d6b738142256b8725c786
author: Hui Su <huisu@google.com>
date: Sun Jun 24 13:00:54 EDT 2018
Add partition breakout models for 720p resolution Add partition search breakout models for 720p resolution, currently enabled only for speed 0. Compression performance change is neutral. Tested encoding speed over 20 720p clips: Speed gain(%) QP=55 QP=45 QP=35 max 22.1 20.3 29.8 average 10.3 9.1 11.4 Change-Id: I07499728bbc5b80035fc66fad882ea556c8d07f2
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -3320,101 +3320,206 @@
#define FEATURES 4
#define Q_CTX 3
-static const float partition_breakout_weights_64[Q_CTX][FEATURES + 1] = {- {- -0.016673f,
- -0.001025f,
- -0.000032f,
- 0.000833f,
- 1.94261885f - 2.1f,
- },
- {- -0.160867f,
- -0.002101f,
- 0.000011f,
- 0.002448f,
- 1.65738142f - 2.5f,
- },
- {- -0.628934f,
- -0.011459f,
- -0.000009f,
- 0.013833f,
- 1.47982645f - 1.6f,
- },
-};
+#define RESOLUTION_CTX 2
+static const float partition_breakout_weights_64[RESOLUTION_CTX][Q_CTX]
+ [FEATURES + 1] = {+ {+ {+ -0.016673f,
+ -0.001025f,
+ -0.000032f,
+ 0.000833f,
+ 1.94261885f - 2.1f,
+ },
+ {+ -0.160867f,
+ -0.002101f,
+ 0.000011f,
+ 0.002448f,
+ 1.65738142f - 2.5f,
+ },
+ {+ -0.628934f,
+ -0.011459f,
+ -0.000009f,
+ 0.013833f,
+ 1.47982645f - 1.6f,
+ },
+ },
+ {+ {+ -0.064309f,
+ -0.006121f,
+ 0.000232f,
+ 0.005778f,
+ 0.7989465f - 5.0f,
+ },
+ {+ -0.314957f,
+ -0.009346f,
+ -0.000225f,
+ 0.010072f,
+ 2.80695581f - 5.5f,
+ },
+ {+ -0.635535f,
+ -0.015135f,
+ 0.000091f,
+ 0.015247f,
+ 2.90381241f - 5.0f,
+ },
+ },
+ };
-static const float partition_breakout_weights_32[Q_CTX][FEATURES + 1] = {- {- -0.010554f,
- -0.003081f,
- -0.000134f,
- 0.004491f,
- 1.68445992f - 3.5f,
- },
- {- -0.051489f,
- -0.007609f,
- 0.000016f,
- 0.009792f,
- 1.28089404f - 2.5f,
- },
- {- -0.163097f,
- -0.013081f,
- 0.000022f,
- 0.019006f,
- 1.36129403f - 3.2f,
- },
-};
+static const float partition_breakout_weights_32[RESOLUTION_CTX][Q_CTX]
+ [FEATURES + 1] = {+ {+ {+ -0.010554f,
+ -0.003081f,
+ -0.000134f,
+ 0.004491f,
+ 1.68445992f - 3.5f,
+ },
+ {+ -0.051489f,
+ -0.007609f,
+ 0.000016f,
+ 0.009792f,
+ 1.28089404f - 2.5f,
+ },
+ {+ -0.163097f,
+ -0.013081f,
+ 0.000022f,
+ 0.019006f,
+ 1.36129403f - 3.2f,
+ },
+ },
+ {+ {+ -0.024629f,
+ -0.006492f,
+ -0.000254f,
+ 0.004895f,
+ 1.27919173f - 4.5f,
+ },
+ {+ -0.083936f,
+ -0.009827f,
+ -0.000200f,
+ 0.010399f,
+ 2.73731065f - 4.5f,
+ },
+ {+ -0.279052f,
+ -0.013334f,
+ 0.000289f,
+ 0.023203f,
+ 2.43595719f - 3.5f,
+ },
+ },
+ };
-static const float partition_breakout_weights_16[Q_CTX][FEATURES + 1] = {- {- -0.013154f,
- -0.002404f,
- -0.000977f,
- 0.008450f,
- 2.57404566f - 5.5f,
- },
- {- -0.019146f,
- -0.004018f,
- 0.000064f,
- 0.008187f,
- 2.15043926f - 2.5f,
- },
- {- -0.075755f,
- -0.010858f,
- 0.000030f,
- 0.024505f,
- 2.06848121f - 2.5f,
- },
-};
+static const float partition_breakout_weights_16[RESOLUTION_CTX][Q_CTX]
+ [FEATURES + 1] = {+ {+ {+ -0.013154f,
+ -0.002404f,
+ -0.000977f,
+ 0.008450f,
+ 2.57404566f - 5.5f,
+ },
+ {+ -0.019146f,
+ -0.004018f,
+ 0.000064f,
+ 0.008187f,
+ 2.15043926f - 2.5f,
+ },
+ {+ -0.075755f,
+ -0.010858f,
+ 0.000030f,
+ 0.024505f,
+ 2.06848121f - 2.5f,
+ },
+ },
+ {+ {+ -0.007636f,
+ -0.002751f,
+ -0.000682f,
+ 0.005968f,
+ 0.19225763f - 4.5f,
+ },
+ {+ -0.047306f,
+ -0.009113f,
+ -0.000518f,
+ 0.016007f,
+ 2.61068869f - 4.0f,
+ },
+ {+ -0.069336f,
+ -0.010448f,
+ -0.001120f,
+ 0.023083f,
+ 1.47591054f - 5.5f,
+ },
+ },
+ };
-static const float partition_breakout_weights_8[Q_CTX][FEATURES + 1] = {- {- -0.011807f,
- -0.009873f,
- -0.000931f,
- 0.034768f,
- 1.32254851f - 2.0f,
- },
- {- -0.003861f,
- -0.002701f,
- 0.000100f,
- 0.013876f,
- 1.96755111f - 1.5f,
- },
- {- -0.013522f,
- -0.008677f,
- -0.000562f,
- 0.034468f,
- 1.53440356f - 1.5f,
- },
-};
+static const float partition_breakout_weights_8[RESOLUTION_CTX][Q_CTX]
+ [FEATURES + 1] = {+ {+ {+ -0.011807f,
+ -0.009873f,
+ -0.000931f,
+ 0.034768f,
+ 1.32254851f - 2.0f,
+ },
+ {+ -0.003861f,
+ -0.002701f,
+ 0.000100f,
+ 0.013876f,
+ 1.96755111f - 1.5f,
+ },
+ {+ -0.013522f,
+ -0.008677f,
+ -0.000562f,
+ 0.034468f,
+ 1.53440356f - 1.5f,
+ },
+ },
+ {+ {+ -0.003221f,
+ -0.002125f,
+ 0.000993f,
+ 0.012768f,
+ 0.03541421f - 2.0f,
+ },
+ {+ -0.006069f,
+ -0.007335f,
+ 0.000229f,
+ 0.026104f,
+ 0.17135315f - 1.5f,
+ },
+ {+ -0.039894f,
+ -0.011419f,
+ 0.000070f,
+ 0.061817f,
+ 0.6739977f - 1.5f,
+ },
+ },
+ };
// ML-based partition search breakout.
static int ml_predict_breakout(const VP9_COMP *const cpi, BLOCK_SIZE bsize,
@@ -3427,18 +3532,22 @@
float linear_score = 0.0f;
const int qindex = cm->base_qindex;
const int q_ctx = qindex >= 200 ? 0 : (qindex >= 150 ? 1 : 2);
+ const int is_720p_or_larger = VPXMIN(cm->width, cm->height) >= 720;
+ const int resolution_ctx = is_720p_or_larger ? 1 : 0;
switch (bsize) {case BLOCK_64X64:
- linear_weights = partition_breakout_weights_64[q_ctx];
+ linear_weights = partition_breakout_weights_64[resolution_ctx][q_ctx];
break;
case BLOCK_32X32:
- linear_weights = partition_breakout_weights_32[q_ctx];
+ linear_weights = partition_breakout_weights_32[resolution_ctx][q_ctx];
break;
case BLOCK_16X16:
- linear_weights = partition_breakout_weights_16[q_ctx];
+ linear_weights = partition_breakout_weights_16[resolution_ctx][q_ctx];
break;
- case BLOCK_8X8: linear_weights = partition_breakout_weights_8[q_ctx]; break;
+ case BLOCK_8X8:
+ linear_weights = partition_breakout_weights_8[resolution_ctx][q_ctx];
+ break;
default: assert(0 && "Unexpected block size."); return 0;
}
if (!linear_weights) return 0;
@@ -3480,6 +3589,7 @@
}
#undef FEATURES
#undef Q_CTX
+#undef RESOLUTION_CTX
// TODO(jingning,jimbankoski,rbultje): properly skip partition types that are
// unlikely to be selected depending on previous rate-distortion optimization
--- a/vp9/encoder/vp9_speed_features.c
+++ b/vp9/encoder/vp9_speed_features.c
@@ -61,9 +61,11 @@
SPEED_FEATURES *sf,
int speed) {VP9_COMMON *const cm = &cpi->common;
- const int is_480p_or_larger = VPXMIN(cm->width, cm->height) >= 480;
- const int is_720p_or_larger = VPXMIN(cm->width, cm->height) >= 720;
- const int is_2160p_or_larger = VPXMIN(cm->width, cm->height) >= 2160;
+ const int min_frame_size = VPXMIN(cm->width, cm->height);
+ const int is_480p_or_larger = min_frame_size >= 480;
+ const int is_720p_or_larger = min_frame_size >= 720;
+ const int is_1080p_or_larger = min_frame_size >= 1080;
+ const int is_2160p_or_larger = min_frame_size >= 2160;
// speed 0 features
sf->partition_search_breakout_thr.dist = (1 << 20);
@@ -75,11 +77,17 @@
sf->ml_partition_search_early_termination = 1;
}
- if (!is_720p_or_larger) {+ if (!is_1080p_or_larger) {sf->use_ml_partition_search_breakout = 1;
- sf->ml_partition_search_breakout_thresh[0] = 2.5f;
- sf->ml_partition_search_breakout_thresh[1] = 1.5f;
- sf->ml_partition_search_breakout_thresh[2] = 1.5f;
+ if (is_720p_or_larger) {+ sf->ml_partition_search_breakout_thresh[0] = 0.0f;
+ sf->ml_partition_search_breakout_thresh[1] = 0.0f;
+ sf->ml_partition_search_breakout_thresh[2] = 0.0f;
+ } else {+ sf->ml_partition_search_breakout_thresh[0] = 2.5f;
+ sf->ml_partition_search_breakout_thresh[1] = 1.5f;
+ sf->ml_partition_search_breakout_thresh[2] = 1.5f;
+ }
}
if (speed >= 1) {@@ -89,6 +97,7 @@
sf->disable_split_mask =
cm->show_frame ? DISABLE_ALL_SPLIT : DISABLE_ALL_INTER_SPLIT;
sf->partition_search_breakout_thr.dist = (1 << 23);
+ sf->use_ml_partition_search_breakout = 0;
} else {sf->disable_split_mask = DISABLE_COMPOUND_SPLIT;
sf->partition_search_breakout_thr.dist = (1 << 21);