On Monday 11 Jul 2011, Klaus Schmidinger wrote:

> On 11.07.2011, at 03:21, Laz <laz@club-burniston.co.uk> 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