diff options
Diffstat (limited to 'libvpx/vp8/encoder/ratectrl.c')
| -rw-r--r-- | libvpx/vp8/encoder/ratectrl.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/libvpx/vp8/encoder/ratectrl.c b/libvpx/vp8/encoder/ratectrl.c index 1e8259c..fe4db13 100644 --- a/libvpx/vp8/encoder/ratectrl.c +++ b/libvpx/vp8/encoder/ratectrl.c @@ -956,6 +956,21 @@ static void calc_pframe_target_size(VP8_COMP *cpi) if (cpi->bits_off_target > cpi->oxcf.maximum_buffer_size) cpi->bits_off_target = (int)cpi->oxcf.maximum_buffer_size; cpi->buffer_level = cpi->bits_off_target; + + if (cpi->oxcf.number_of_layers > 1) { + unsigned int i; + + // Propagate bits saved by dropping the frame to higher layers. + for (i = cpi->current_layer + 1; i < cpi->oxcf.number_of_layers; + i++) { + LAYER_CONTEXT *lc = &cpi->layer_context[i]; + lc->bits_off_target += (int)(lc->target_bandwidth / + lc->framerate); + if (lc->bits_off_target > lc->maximum_buffer_size) + lc->bits_off_target = lc->maximum_buffer_size; + lc->buffer_level = lc->bits_off_target; + } + } } } |