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Merge "Stabilize the encoder buffer from going too negative."

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Marco Paniconi 2015-10-05 14:11:43 +00:00 committed by Gerrit Code Review
commit 3da6564f90
1 changed files with 7 additions and 0 deletions
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7
vp9/encoder/vp9_ratectrl.c
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@ -271,6 +271,13 @@ static void update_buffer_level(VP9_COMP *cpi, int encoded_frame_size) {
// Clip the buffer level to the maximum specified buffer size.
rc->bits_off_target = VPXMIN(rc->bits_off_target, rc->maximum_buffer_size);
// For screen-content mode, and if frame-dropper is off, don't let buffer
// level go below threshold, given here as -rc->maximum_ buffer_size.
if (cpi->oxcf.content == VP9E_CONTENT_SCREEN &&
cpi->oxcf.drop_frames_water_mark == 0)
rc->bits_off_target = VPXMAX(rc->bits_off_target, -rc->maximum_buffer_size);
rc->buffer_level = rc->bits_off_target;
if (is_one_pass_cbr_svc(cpi)) {