[FFmpeg-user] Effective bit rate of video

[Đặng Đức Hưng]

Hi. 

This is a command line of ffmpeg which I use 

-i udp://233.19.205.56:5501 -filter:v yadif=0:0:0,fps=25 -vcodec libx264 -vprofile main -level 30 -g 64 -maxrate 1400k -bufsize 2800k -s: 720x576 -r 25 -crf 1 -ac 2 -ar 48000 -b:a 128k -filter:a volume=2 -f mpegts udp://230.1.1.1:5501?pkt_size=1316 

When I run this command, I saw that on cmd the output bit rate is over 1400k about 1600k and I play on VLC the input bitrate video is not 1400k. The bit rate video is always change <1400k or >1400k. So how to force the ouput bit rate video is constant or at least constant around 1400k.

Thanks your support.

Best Regards