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Change parameters for VP9 dynamic resizing.

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Use a smaller window in dynamic resizing and wait a shorter
time after key frame.

Change-Id: I086f840cdec3c6bdaa9acfe11346d919e445973d
This commit is contained in:
jackychen 2015-09-14 16:15:07 -07:00
parent 0b762e0c0c
commit 419456617e
1 changed files with 2 additions and 2 deletions
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4
vp9/encoder/vp9_ratectrl.c
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@ -1832,8 +1832,8 @@ int vp9_resize_one_pass_cbr(VP9_COMP *cpi) {
}
// Resize based on average buffer underflow and QP over some window.
// Ignore samples close to key frame, since QP is usually high after key.
if (cpi->rc.frames_since_key > 2 * cpi->framerate) {
const int window = (int)(5 * cpi->framerate);
if (cpi->rc.frames_since_key > 1 * cpi->framerate) {
const int window = (int)(4 * cpi->framerate);
cpi->resize_avg_qp += cm->base_qindex;
if (cpi->rc.buffer_level < (int)(30 * rc->optimal_buffer_level / 100))
++cpi->resize_buffer_underflow;