Message ID | 1512118883-17023-1-git-send-email-zhong.li@intel.com |
---|---|
State | Accepted |
Commit | 6ff29343b01923e9b125fe7404ac8701cdfb1fe5 |
Headers | show |
diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c index 57f78c4..96c8fb5 100644 --- a/libavcodec/qsvenc.c +++ b/libavcodec/qsvenc.c @@ -495,6 +495,7 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q) #if QSV_HAVE_VCM case MFX_RATECONTROL_VCM: #endif + q->param.mfx.BufferSizeInKB = avctx->rc_buffer_size / 8000; q->param.mfx.InitialDelayInKB = avctx->rc_initial_buffer_occupancy / 1000; q->param.mfx.TargetKbps = avctx->bit_rate / 1000; q->param.mfx.MaxKbps = avctx->rc_max_rate / 1000;
Hypothetical Reference Decoding (HRD) model assumes that data flows into a buffer of the fixed size BufferSizeInKB with a constant bitrate. Smaller BufferSizeInKB means smaller frame size variations, but more difficult to maintain HRD. Signed-off-by: Zhong Li <zhong.li@intel.com> --- libavcodec/qsvenc.c | 1 + 1 file changed, 1 insertion(+)