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On Monday 11 Jul 2011, Klaus Schmidinger wrote: > On 11.07.2011, at 03:21, Laz <laz@xxxxxxxxxxxxxxxxxxxx> wrote: > > Hi, > > > > I'm currently updating the softdevice plugin to work with the changes > > to TS format that started with vdr-1.7.1 and also current versions > > of ffmpeg (libavcodec does the actual decoding). > > > > I've made some progress with vdr-1.7.19: > > > > Old PES recordings play fine (as I'd hoped they would!) > > > > New TS recordings play: the video looks fine. PlayTSVideo convertes > > to PES and passes that to PlayVideo of the output device (I assume > > it would be relatively straightforward to implement a proper PlayTs > > using avcodec but that's for a later date!). The sound is totally > > messed up: just lots of random buzzing noises (not looked into the > > audio yet). > > > > Tranfer mode does not work at all, all I get is a black screen and > > silence. > > > > Before I dig into buffers, etc., is there any difference between the > > streams sent to PlayTS in transfer mode and in playback? I see that > > transfer mode generates a PAT/PMT on the fly and passes the stream > > directly to PlayTs. > > > > Does a similar thing happen to a recording, i.e. the PAT/PMT is added > > before writing to disk and then the stream sent during playback is > > identical to that which would have been sent if it had been watched > > in transfer mode? Does the output device ulitimately receive the > > same set of PES packets? > > In Transfer Mode onlx one single PAT/PMT is generated at the very start > of it, while a recording contains a PAT/PMT at the beginning of every > GOP. Thanks for the quick response! :-) In that case, I suspect my problem lies somewhere in the buffering or timing. I will delve further... Cheers, Laz |
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