From 6d843227626a9e3775b4309100532d586356cd43 Mon Sep 17 00:00:00 2001 From: Paul Wilkins Date: Wed, 29 Feb 2012 12:32:46 -0800 Subject: vp8e - force at least some change in over and under shoots Change-Id: Ie1796f272dc33bf5a1c8ac990da625961d272aa9 --- vp8/encoder/ratectrl.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'vp8') diff --git a/vp8/encoder/ratectrl.c b/vp8/encoder/ratectrl.c index f4ed30026..bf84035aa 100644 --- a/vp8/encoder/ratectrl.c +++ b/vp8/encoder/ratectrl.c @@ -1532,6 +1532,15 @@ void vp8_compute_frame_size_bounds(VP8_COMP *cpi, int *frame_under_shoot_limit, } } } + + // For very small rate targets where the fractional adjustment + // (eg * 7/8) may be tiny make sure there is at least a minimum + // range. + *frame_over_shoot_limit += 200; + *frame_under_shoot_limit -= 200; + if ( *frame_under_shoot_limit < 0 ) + *frame_under_shoot_limit = 0; + } } -- cgit v1.2.3