On Fri, Feb 2, 2018 at 2:25 PM, Dan Edwards <edwards...@gmail.com> wrote:
> I am looking for an alternate solution to avconv on a Raspberry Pi setup
> running RetroPie.
> Have been trying to use it to convert some videos in the color format
> yuv444p to yuv420p which is needed for a hardware accelerated video
> playback feature in RetroPie.

This is pretty easy to accomplish, and you can do it with a command like:

ffmpeg -i infile.mp4 -pix_fmt yuv420p -codec copy -map 0 outfile.mp4

instead of `-codec copy` in the above, you may want to change it to
explicitly convert to h264
(which I know works) as some newer videos are h265 (which i don't think
does on the pi)
so something like:

ffmpeg -i infile.mp4 -vcodec h264 -pix_fmt yuv420p -codec copy -map 0

which will copy all the rest of the streams without conversion, and only
reconvert the video

Take care!!
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