On Fri, 4 Mar 2011, akp2akp2 wrote:
Just curious, isn't the cache ("-cache 20480" for 20MB buffer) option of
mencoder enough to get the same result?
Maybe that would work -- however, not just using "-cache 20480", but also
writing the output to a named pipe ("-o fifo"), and using a separate
process (like "cat fifo > output.avi") to write the video to disk. (Is
mencoder single-threaded? If so, it may block when it writes to disk,
which might prevent it from reading from /dev/video0 often enough.)
(With the PVR USB2 device, it's not really necessary to pass the stream
through mencoder's demuxer / muxer, since it's already in an MPEG2
container when it's read from /dev/video0. In my case, I was planning to
transcode to lower-bitrate VP8, and libvpx didn't seem to be fast enough
to do that in real-time, so I couldn't transcode from /dev/video0
directly.)
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