[Ffmpeg-devel] HDTV h264 autodetection

matthieu castet castet.matthieu
Sat Nov 4 21:32:00 CET 2006


M?ns Rullg?rd wrote:
> matthieu castet <castet.matthieu at free.fr> writes:
> 
> 
> The PMT PID is specified in the PAT.  A properly written app would
> begin with requesting the PAT only, parse that and request the PMT PID
> from the DVB device, and finally request the audio/video PIDs listed
> in the PMT.  There is of course nothing wrong with caching the PIDs to
> save some time.
> 
Yes, but the app shouldn't request all the pids, only the ones that the 
user want : on some devices, the bandwidth is limited.
For USB1.0 only PAT/PMT and a video and an audio pids should be selected 
in order to avoid corruption of the stream on the usb bus.




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