[FFmpeg-user] ffmpeg mux cause quality loss

[Timothy Gu]

Hi,

On Mar 28, 2013 4:23 PM, "Wu, Mandy" <mandy.wu at intel.com> wrote:
>
> Is there any good PSNR calculation tool and reference? I am
> using the tool downloaded from http://www2.tkn.tu-berlin.de/
> research/evalvid/fw.html

You can use ffmpeg's -psnr option which is documented here.
http://ffmpeg.org/ffmpeg.html

Do not top-post. It is considered rude here.

Timothy G.