[vdr] Re: Videobufsize

[Klaus Schmidinger <Klaus.Schmidinger@cadsoft.de>]

Gerald Raaf wrote:
> 
> Hi,
> 
> Klaus Schmidinger schrieb:
> 
> > Marcel Wiesweg wrote:
> > >
> > > > >Just wondering does it make any difference as bufsizes are different.
> > > > >There was some discussions about bufsizes earlier.
> > > > >
> > > > >dvbplayer.c:#define VIDEOBUFSIZE  MEGABYTE(1)
> > > > >recorder.c:#define VIDEOBUFSIZE  MEGABYTE(5)
> > > > >transfer.c:#define VIDEOBUFSIZE  MEGABYTE(1)
> > >
> > > I would assume the recording buffer is larger because the data is written on
> > > harddisk, while the other two send the data to the device.
> > >
> > > >
> > > > Do these buffers have anything to do with the ring buffers (and their
> > > > almost daily overflows)?
> > >
> > > Yes, these are the sizes of the ringbuffers.
> >
> > You're right with both things.
> >
> > Klaus
> >
> > --
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> 
> i use three DVB Cards and ac3overdvb and autopid patch with these i get ringbuffer
> overflows, very soon after starting vdr. This does also happen with plain vdr, but only
> if the card go into transfer-mode which it always do (when watching Premiere), because
> the cam is connected to the third card.
> 
> If you increase the buffer from
> transfer.c:#define VIDEOBUFSIZE  MEGABYTE(1)
> to
> transfer.c:#define VIDEOBUFSIZE  MEGABYTE(3)
> 
> i didn't get the ringbuffer overflow messages
> 
> Gerald

Strange... I also watch Premiere via Transfer Mode and never get
buffer overflows.

Klaus


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