diff options
Diffstat (limited to 'vp8/encoder/ratectrl.c')
| -rw-r--r-- | vp8/encoder/ratectrl.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/vp8/encoder/ratectrl.c b/vp8/encoder/ratectrl.c index 8455b7bdb..b69a1965e 100644 --- a/vp8/encoder/ratectrl.c +++ b/vp8/encoder/ratectrl.c @@ -1550,12 +1550,21 @@ void vp8_compute_frame_size_bounds(VP8_COMP *cpi, int *frame_under_shoot_limit, *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8; } } - // VBR + // VBR and CQ mode // Note that tighter restrictions here can help quality but hurt encode speed else { - *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8; - *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8; + // Stron overshoot limit for constrained quality + if (cpi->oxcf.end_usage == USAGE_CONSTRAINED_QUALITY) + { + *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8; + *frame_under_shoot_limit = cpi->this_frame_target * 2 / 8; + } + else + { + *frame_over_shoot_limit = cpi->this_frame_target * 11 / 8; + *frame_under_shoot_limit = cpi->this_frame_target * 5 / 8; + } } } } |