[FFmpeg-user] Improvement the quality of H264 video signal with low bit rate

[Đặng Đức Hưng]

Dear All.

 

I transcoded the IP input video which is UDP and multicast stream to other output with low bit rate. I found that the quality of video output is very bad. The image is foggy and blured when active scene. The below is the code I am using. Can you give me some advice to improve video ouput.

Thank you so much.

 

C:/ffmpeg_32/bin/ffmpeg -i udp://236.19.204.27:6000 -filter:v yadif=0:-1:1,fps=25 -vcodec libx264 -g 16 -vprofile main -level 30 -b:v 1000k -minrate 950k -maxrate 1050k -bufsize 100k -s: 720x576 -r 25 -ac 2 -ar 48000 -b:a 128k -filter:a volume=2 -f mpegts -muxrate 1200k udp://237.19.200.7:6000?pkt_size=1316

 

Best Regards

Đặng Đức Hưng

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