[vdr] Re: a few dxr3 plugin issues

[Malcolm Caldwell <malcolm.caldwell@ntu.edu.au>]

On Thu, 2003-05-01 at 19:51, Kai Moeller wrote:
> On Thursday 01 May 2003 04:53, Malcolm Caldwell wrote:
> > I am currently running dxr plugin version 0.1.8 with vdr-1.1.29.
> >
> > I thought this might be a good time to report a few problems I have:
> >
> > 1.  Sound
> > When I first start vdr the channel I view most has no Audio.  If I wait
> > several minutes sound starts.  Alternatively if I change channels to a
> > particular channel (lets call it 'R') the sound starts and then all
> > channels continue to work.
> 
> I saw this problem also a few times and every time I saw it I found an
> entry in /var/log/messages:
> 
> linux vdr[2481]: ERROR (dvbdevice.c,547): Device or resource busy
> 
> => so I assume that this is no dxr3-plugin problem but a VDR / driver 
> problem.
> 
> >
> > Here is the funny part:  For 0.1.7 and 0.1.8 the sound on channel 'R' is
> > usually played too fast, high pitched with gaps.  Sometimes if I wait a
> > few minutes it returns to normal.
> >
> 
> OK, I think this problem is caused by a wrong detected audio header.
> Just try the following patch:
> 
> *** dxr3audiodecoder.c_orig	Fri Apr 25 00:13:04 2003
> --- dxr3audiodecoder.c	Thu May  1 11:05:36 2003
> *************** void cDxr3AudioDecoder::Decode(const uin
> *** 54,60 ****
>       };
> 
>       int i = 0;
> !     for (i = 0; i < length-4 && !foundHeader; i++) {
>           unsigned int tempHead = *((unsigned int*)(buf+i));
>           if (HeadCheck(tempHead)) {
>               if ((buf[i+2] & 0xFC) != (lastHeader[2] & 0xFC)) {
> --- 54,60 ----
>       };
> 
>       int i = 0;
> !     for (i = 0; i < length-4 && !foundHeader && pts; i++) {
>           unsigned int tempHead = *((unsigned int*)(buf+i));
>           if (HeadCheck(tempHead)) {
>               if ((buf[i+2] & 0xFC) != (lastHeader[2] & 0xFC)) {
> 
> 
> 
> This should fix the sporadic audio problems as well.


I will try these patches over the weekend.


> > 2.  Cut recordings
> > Cut recordings don't replay for me.  If I just cut some from the
> > beginning and some from the end the recording will replay.  However if I
> > cut anything (like a commercial) out from the middle of a program the
> > recording will fail upon hitting the cut mark.  The appearance is that
> > the device freezes and I have to restart vdr to get any further.
> 
> Sorry, but I can't reproduce this problem. Cutting works for versions on my
> system. I would need a sample stream to debug the problem but
> unfortunately my internet bandwith is limited.
> 

Of note: this problem exists with a channel that up until 0.1.8 did not
work for rewind/fast forward and stills - perhaps this is another
manifestation of the Iframe PES issue?

> - Kai -
> 
> 



-- 
Info:
To unsubscribe send a mail to ecartis@linuxtv.org with "unsubscribe vdr" as subject.