[FFmpeg-devel] [PATCH] avcodec/nvenc: set average and max bitrate values to zero when in CQ rate control mode

[Roman Arzumanyan]

Hello,
The patch fixes bug with CQ RC mode: max and average bitrate values were not set to zero.

How to reproduce:
#CQ 30 file
ffmpeg \
  -i big_buck_bunny_1080p_h264.mov -c:v h264_nvenc -preset medium \
  -cq 30 -y output_cq30.mp4

#CQ 10 file
ffmpeg \
  -i big_buck_bunny_1080p_h264.mov -c:v h264_nvenc -preset medium \
  -cq 10 -y output_cq10.mp4

Before the patch, both output_cq30.mp4  and output_cq10.mp4  were of same size.
After the patch, output_cq10.mp4 file has higher quality and bigger size.

--
BR, Roman Arzumanyan


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