[vdr] FF card A/V sync suggestion
udo_richter at gmx.de
Fri Nov 3 20:04:13 CET 2006
> mplayer uses either LAVC or FAME [depending on how mplayer was
> compiled/configured] to convert EVERYTHING to MPEG1 before it is sent to
> the DVB Device. In essence, it transcodes in realtime.
> Not too efficient, but since transcoding to MPEG 1 takes little
> resources, most people probably don't notice.
Once again, this is impossible. Really.
My CPU is a VIA C3-600 CPU, and its really too slow to transcode
*anything*. If I force transcodung with -vf lavc=1000, the CPU load is
99% and the video plays at 40% original speed only. Just decoding the
mpeg2 stream eats up 75% CPU alone, without audio and without displaying.
Without forcing transcoding, the CPU load is 10% and no frames get
dropped. This is roughly 25 times faster than with lavc=1000.
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