WebM Codec SDK
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First pass frame stats This is a mirror of vp9's FIRSTPASS_STATS except that spatial_layer_id is omitted. More...
#include <vpx_ext_ratectrl.h>
Data Fields | |
double | frame |
double | weight |
double | intra_error |
double | coded_error |
double | sr_coded_error |
double | frame_noise_energy |
double | pcnt_inter |
double | pcnt_motion |
double | pcnt_second_ref |
double | pcnt_neutral |
double | pcnt_intra_low |
double | pcnt_intra_high |
double | intra_skip_pct |
double | intra_smooth_pct |
double | inactive_zone_rows |
double | inactive_zone_cols |
double | MVr |
double | mvr_abs |
double | MVc |
double | mvc_abs |
double | MVrv |
double | MVcv |
double | mv_in_out_count |
double | duration |
double | count |
double | new_mv_count |
First pass frame stats This is a mirror of vp9's FIRSTPASS_STATS except that spatial_layer_id is omitted.
double vpx_rc_frame_stats::frame |
Frame number in display order, if stats are for a single frame. No real meaning for a collection of frames.
double vpx_rc_frame_stats::weight |
Weight assigned to this frame (or total weight for the collection of frames) currently based on intra factor and brightness factor. This is used to distribute bits between easier and harder frames.
double vpx_rc_frame_stats::intra_error |
Intra prediction error.
double vpx_rc_frame_stats::coded_error |
Best of intra pred error and inter pred error using last frame as ref.
double vpx_rc_frame_stats::sr_coded_error |
Best of intra pred error and inter pred error using golden frame as ref.
double vpx_rc_frame_stats::frame_noise_energy |
Estimate the noise energy of the current frame.
double vpx_rc_frame_stats::pcnt_inter |
Percentage of blocks with inter pred error < intra pred error.
double vpx_rc_frame_stats::pcnt_motion |
Percentage of blocks using (inter prediction and) non-zero motion vectors.
double vpx_rc_frame_stats::pcnt_second_ref |
Percentage of blocks where golden frame was better than last or intra: inter pred error using golden frame < inter pred error using last frame and inter pred error using golden frame < intra pred error
double vpx_rc_frame_stats::pcnt_neutral |
Percentage of blocks where intra and inter prediction errors were very close.
double vpx_rc_frame_stats::pcnt_intra_low |
Percentage of blocks that have intra error < inter error and inter error < LOW_I_THRESH
double vpx_rc_frame_stats::pcnt_intra_high |
Percentage of blocks that have intra error < inter error and intra error < LOW_I_THRESH but inter error >= LOW_I_THRESH LOW_I_THRESH
double vpx_rc_frame_stats::intra_skip_pct |
Percentage of blocks that have almost no intra error residual (i.e. are in effect completely flat and untextured in the intra domain). In natural videos this is uncommon, but it is much more common in animations, graphics and screen content, so may be used as a signal to detect these types of content.
double vpx_rc_frame_stats::intra_smooth_pct |
Percentage of blocks that have intra error < SMOOTH_INTRA_THRESH
double vpx_rc_frame_stats::inactive_zone_rows |
Image mask rows top and bottom.
double vpx_rc_frame_stats::inactive_zone_cols |
Image mask columns at left and right edges.
double vpx_rc_frame_stats::MVr |
Mean of row motion vectors.
double vpx_rc_frame_stats::mvr_abs |
Mean of absolute value of row motion vectors.
double vpx_rc_frame_stats::MVc |
Mean of column motion vectors.
double vpx_rc_frame_stats::mvc_abs |
Mean of absolute value of column motion vectors.
double vpx_rc_frame_stats::MVrv |
Variance of row motion vectors.
double vpx_rc_frame_stats::MVcv |
Variance of column motion vectors.
double vpx_rc_frame_stats::mv_in_out_count |
Value in range [-1,1] indicating fraction of row and column motion vectors that point inwards (negative MV value) or outwards (positive MV value). For example, value of 1 indicates, all row/column MVs are inwards.
double vpx_rc_frame_stats::duration |
Duration of the frame / collection of frames.
double vpx_rc_frame_stats::count |
1.0 if stats are for a single frame, or number of frames whose stats are accumulated.
double vpx_rc_frame_stats::new_mv_count |
Number of new mv in a frame.