generic-library/vpx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Changes to best quality settings.

Browse Source 
Small changes to the best quality default speed trade off.
Some speedup settings are worth while even for best quality as they
have only a very small impact on quality but a significant impact on
encode time.

These changes give as much as a further 50-60% increase in encode
speed for my test animations clip with minimal impact on quality.

For this sequence these changes improve the best quality encode  speed
to about the same level as good quality speed 0 in Q3 2015 whilst
retaining the large quality gain of over 1 db

For many natural videos though the quality difference from good 0
to best is much smaller.

Change-Id: I28b3840009d77e129817a78a7c41e29cb03e1132
This commit is contained in:
paulwilkins 2015-11-17 16:20:20 +00:00
parent 0149fb3d6b
commit 8ba98516fd
2 changed files with 14 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
vp9/encoder/vp9_speed_features.c
View File

@ -17,17 +17,17 @@
// Mesh search patters for various speed settings
static MESH_PATTERN best_quality_mesh_pattern[MAX_MESH_STEP] =
{{64, 4}, {28, 2}, {15, 1}, {7, 1}, {1, 1}, {1, 1}};
{{64, 4}, {28, 2}, {15, 1}, {7, 1}};
#define MAX_MESH_SPEED 5 // Max speed setting for mesh motion method
static MESH_PATTERN good_quality_mesh_patterns[MAX_MESH_SPEED + 1]
[MAX_MESH_STEP] =
{{{64, 8}, {28, 4}, {15, 1}, {7, 1}, {3, 1}, {2, 1}},
{{64, 8}, {28, 4}, {15, 1}, {7, 1}, {3, 1}, {2, 1}},
{{64, 8}, {14, 2}, {7, 1}, {7, 1}, {3, 1}, {2, 1}},
{{64, 16}, {24, 8}, {12, 4}, {7, 1}, {3, 1 }, {2, 1 }},
{{64, 16}, {24, 8}, {12, 4}, {7, 1}, {3, 1 }, {2, 1 }},
{{64, 16}, {24, 8}, {12, 4}, {7, 1}, {3, 1 }, {2, 1 }},
{{{64, 8}, {28, 4}, {15, 1}, {7, 1}},
{{64, 8}, {28, 4}, {15, 1}, {7, 1}},
{{64, 8}, {14, 2}, {7, 1}, {7, 1}},
{{64, 16}, {24, 8}, {12, 4}, {7, 1}},
{{64, 16}, {24, 8}, {12, 4}, {7, 1}},
{{64, 16}, {24, 8}, {12, 4}, {7, 1}},
};
static unsigned char good_quality_max_mesh_pct[MAX_MESH_SPEED + 1] =
{50, 25, 15, 5, 1, 1};
@ -478,7 +478,6 @@ void vp9_set_speed_features_framesize_independent(VP9_COMP *cpi) {
sf->mv.auto_mv_step_size = 0;
sf->mv.fullpel_search_step_param = 6;
sf->comp_inter_joint_search_thresh = BLOCK_4X4;
sf->adaptive_rd_thresh = 0;
sf->tx_size_search_method = USE_FULL_RD;
sf->use_lp32x32fdct = 0;
sf->adaptive_motion_search = 0;
@ -534,11 +533,14 @@ void vp9_set_speed_features_framesize_independent(VP9_COMP *cpi) {
// Recode loop tolerance %.
sf->recode_tolerance = 25;
sf->default_interp_filter = SWITCHABLE;
sf->tx_size_search_breakout = 0;
sf->partition_search_breakout_dist_thr = 0;
sf->partition_search_breakout_rate_thr = 0;
sf->simple_model_rd_from_var = 0;
// Some speed-up features even for best quality as minimal impact on quality.
sf->adaptive_rd_thresh = 1;
sf->tx_size_search_breakout = 1;
sf->partition_search_breakout_dist_thr = (1 << 19);
sf->partition_search_breakout_rate_thr = 80;
if (oxcf->mode == REALTIME)
set_rt_speed_feature(cpi, sf, oxcf->speed, oxcf->content);
else if (oxcf->mode == GOOD)

2
vp9/encoder/vp9_speed_features.h
View File

@ -195,7 +195,7 @@ typedef struct MV_SPEED_FEATURES {
int fullpel_search_step_param;
} MV_SPEED_FEATURES;
#define MAX_MESH_STEP 6
#define MAX_MESH_STEP 4
typedef struct MESH_PATTERN {
int range;