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

Merge "KF/GF Pulsing"

Browse Source
This commit is contained in:
Paul Wilkins 2011-01-14 09:20:37 -08:00 committed by Code Review
commit a1a4d23797
1 changed files with 38 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
vp8/encoder/onyx_if.c
View File

@ -2029,7 +2029,7 @@ void vp8_change_config(VP8_PTR ptr, VP8_CONFIG *oxcf)
cpi->buffered_mode = (cpi->oxcf.optimal_buffer_level > 0) ? TRUE : FALSE;
// Experimental cq target value
cpi->cq_target_quality = oxcf->cq_level;
cpi->cq_target_quality = cpi->oxcf.cq_level;
cpi->rolling_target_bits = cpi->av_per_frame_bandwidth;
cpi->rolling_actual_bits = cpi->av_per_frame_bandwidth;
@ -3519,14 +3519,29 @@ static BOOL recode_loop_test( VP8_COMP *cpi,
{
// General over and under shoot tests
if ( ((cpi->projected_frame_size > high_limit) && (q < maxq)) ||
((cpi->projected_frame_size < low_limit) && (q > minq)) ||
((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
(q > cpi->cq_target_quality) &&
(cpi->projected_frame_size <
((cpi->this_frame_target * 7) >> 3))) )
((cpi->projected_frame_size < low_limit) && (q > minq)) )
{
force_recode = TRUE;
}
// Special Constrained quality tests
else if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY)
{
// Undershoot and below auto cq level
if ( (q > cpi->cq_target_quality) &&
(cpi->projected_frame_size <
((cpi->this_frame_target * 7) >> 3)))
{
force_recode = TRUE;
}
// Severe undershoot and between auto and user cq level
else if ( (q > cpi->oxcf.cq_level) &&
(cpi->projected_frame_size < cpi->min_frame_bandwidth) &&
(cpi->active_best_quality > cpi->oxcf.cq_level))
{
force_recode = TRUE;
cpi->active_best_quality = cpi->oxcf.cq_level;
}
}
}
return force_recode;
@ -3853,7 +3868,13 @@ static void encode_frame_to_data_rate
if ((cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
(cpi->active_best_quality < cpi->cq_target_quality) )
{
cpi->active_best_quality = cpi->cq_target_quality;
// If we are strongly undershooting the target rate in the last
// frames then use the user passed in cq value not the auto
// cq value.
if ( cpi->rolling_actual_bits < cpi->min_frame_bandwidth )
cpi->active_best_quality = cpi->oxcf.cq_level;
else
cpi->active_best_quality = cpi->cq_target_quality;
}
}
@ -4219,6 +4240,16 @@ static void encode_frame_to_data_rate
Q = vp8_regulate_q(cpi, cpi->this_frame_target);
// Special case reset for qlow for constrained quality.
// This should only trigger where there is very substantial
// undershoot on a frame and the auto cq level is above
// the user passsed in value.
if ( (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) &&
(Q < q_low) )
{
q_low = Q;
}
while (((Q > q_high) || (cpi->zbin_over_quant > zbin_oq_high)) && (Retries < 10))
{
vp8_update_rate_correction_factors(cpi, 0);