[mythtv] Re: transcoding mpeg2 -> mpeg2

Mike Wilcox mike at trouble.org.uk
Thu Oct 9 03:04:15 EDT 2003


Geoffrey Hausheer wrote:
> Possibly.  In general, the transcoder is just a special type of player
> (at least as far as mpeg2->mpeg4 goes).  It just asks for a video frame,
> and sends all relevant data to the encoder (the corresponding audio,
> frame number and timecode).  So in theory it should just work (myth takes
> care of audio/video sync during playback as long as the timecodes are
> accurate).  This caused issues for the fifo code, since it needed to
> actually sync the streams before sending them, so perhaps we could try
> that.

Hmmm. Perhaps Myth can't properly read the timecodes of the DVB stream. 
It definitely does a worse job of syncing audio and video than external 
programs which are deliberately written to sync a DVB PVA stream.

Mike




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