[FFmpeg-devel] [PATCH] Changed max bitrate for VBV mode (according to Ivan Uskow)

Sven Dueking svennablet at gmail.com
Thu Aug 13 11:47:18 CEST 2015


From: Sven Dueking <sven at nablet.com>

---
 libavcodec/qsvenc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libavcodec/qsvenc.c b/libavcodec/qsvenc.c
index 57f5fe4..b56e4b4 100644
--- a/libavcodec/qsvenc.c
+++ b/libavcodec/qsvenc.c
@@ -118,10 +118,14 @@ static int init_video_param(AVCodecContext *avctx, QSVEncContext *q)
 
     switch (q->param.mfx.RateControlMethod) {
     case MFX_RATECONTROL_CBR:
+	q->param.mfx.InitialDelayInKB = avctx->rc_initial_buffer_occupancy / 1000;
+        q->param.mfx.TargetKbps       = avctx->bit_rate / 1000;
+        q->param.mfx.MaxKbps          = avctx->bit_rate / 1000;
+        break;
     case MFX_RATECONTROL_VBR:
         q->param.mfx.InitialDelayInKB = avctx->rc_initial_buffer_occupancy / 1000;
         q->param.mfx.TargetKbps       = avctx->bit_rate / 1000;
-        q->param.mfx.MaxKbps          = avctx->bit_rate / 1000;
+        q->param.mfx.MaxKbps          = avctx->rc_max_rate / 1000;
         break;
     case MFX_RATECONTROL_CQP:
         quant = avctx->global_quality / FF_QP2LAMBDA;
-- 
1.8.3.1



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