[FFmpeg-user] Is there a better way to do this

[Reindl Harald]

Am 19.04.2014 12:31, schrieb Cecil Westerhof:
> I am using:
> ffmpeg -async 1
>        -f alsa
>        -ac 1
>        -i hw:1,0,0
>        -f x11grab -s 1920x1080
>        -r 25
>        -i :0.0
>        -acodec libmp3lame
>        -ar 22050
>        -ab 64k
>        -qscale:video 4
>        2014-04-19_12:24.avi
> 
> Works reasonably well. But in the man page I do not see the parameter
> '-ab' described. Should I use something else for this?

ab = AudioBitrate
http://en.wikipedia.org/wiki/MP3

for spoken audio 64 is fine, for music it is crap and
should be at least 128

> I also get:
> [swscaler @ 0x13d3100] deprecated pixel format used, make sure you did set range correctly
> 
> What am I doing wrong here?

just a warning

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