On Wed, Oct 14, 2020 at 15:34:56 +0500, USMAN AAMER wrote:
> I am working on vp9-RTP streaming over LAN and want to perform 2 pass
> encoding but unable to do so as it is not generating .sdp file.
>
> I am using the following command:
>
> ffmpeg -i input.mp4 -c:v libvpx-vp9 -b:v 1M -pass 1 -an -f null /dev/null
> && ffmpeg -i input.mp4 -c:v libvpx-vp9 -an -b:v 1M -pass 2 -c:a -f rtp
> rtp://192.168.12.5:5004
If you show us the complete, uncut console output, we can show you what
the error message means.
Apart from that:
> ffmpeg -i input.mp4 -c:v libvpx-vp9 -an -b:v 1M -pass 2 -c:a -f rtp
> rtp://192.168.12.5:5004
a) You're saying not to use audio ("-an"), but specify "-c:a"
nevertheless.
b) "-c:a" needs an additional parameter.
Moritz
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