[linux-dvb] cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type

[linux-dvb] cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type

[Goga777]

Hi

I run the 

# ./szap2 -n1 -c19 -S0 -M2 -C34 -p
reading channels from file '19'
zapping to 1 'EinsFestival HD;ARD':
sat 0, frequency = 12422 MHz H, symbolrate 27500000, vpid = 0x0641, apid = 0x0642 sid = 0x6eec
Delivery system=DVB-S
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'

do_tune: API version=3, delivery system = 0
do_tune: Frequency = 1822000, Srate = 27500000
do_tune: Frequency = 1822000, Srate = 27500000


status 1f | signal f240 | snr 7ccd | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal f240 | snr 799a | ber 00000000 | unc 00000000 | FE_HAS_LOCK
status 1f | signal f280 | snr 7800 | ber 00000000 | unc 00000000 | FE_HAS_LOCK


and try to see the pictures with ffplay

env LANG=C cat /dev/dvb/adapter0/dvr0 | ffplay - 

goga@goga:/usr/src/vdr-1.7.0$ env LANG=C cat /dev/dvb/adapter0/dvr0 | ffplay -
FFplay version SVN-r15050, Copyright (c) 2003-2008 Fabrice Bellard, et al.
  configuration: --arch=i686 --cpu=pentium4 --enable-pthreads --enable-shared --enable-gpl --enable-postproc --disable-stripping --enable-liba52 --enable-libvorbis
  libavutil     49.10. 0 / 49.10. 0
  libavcodec    51.70. 0 / 51.70. 0
  libavformat   52.21. 0 / 52.21. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  built on Aug 30 2008 18:28:25, gcc: 4.3.1
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]non-existing PPS referenced
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]non-existing PPS referenced
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]non-existing PPS referenced
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]number of reference frames exceeds max (probably corrupt input), discarding one
[h264 @ 0x80aa760]number of reference frames exceeds max (probably corrupt input), discarding one
[h264 @ 0x80aa760]number of reference frames exceeds max (probably corrupt input), discarding one
[h264 @ 0x80aa760]number of reference frames exceeds max (probably corrupt input), discarding one
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]B picture before any references, skipping
[h264 @ 0x80aa760]decode_slice_header error
[h264 @ 0x80aa760]no frame!
[h264 @ 0x80aa760]warning: first frame is no keyframe
[h264 @ 0x80aa760]number of reference frames exceeds max (probably corrupt input), discarding one
cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type
[h264 @ 0x80aa760]error while decoding MB 14 23, bytestream (-4)
[h264 @ 0x80aa760]concealing 1795 DC, 1795 AC, 1795 MV errors

after that the pictures is freezing 

"cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type"

is it possible to fix it ?


Goga






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Re: [linux-dvb] cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type

[barry bouwsma]

--- On Sat, 8/30/08, Goga777 <goga777@bk.ru> wrote:

> "cat: /dev/dvb/adapter0/dvr0: Value too large for
> defined data type"
> 
> is it possible to fix it ?

This is a result of error EOVERFLOW.

I found mention of this in some very old documentation I have
but which doesn't appear to be present in the very limited
searching I've done on the existing source repositories.

I also can't find a particular pointer I read years back, which
led me to tweak the value of DVB_BUFFER_SIZE in dvb-core/dmxdev.h
so solve some problem I can't remember.

The documentation points to DMX_SET_BUFFER_SIZE.  Programs like
`szap' seem to set this to 64k.

Hope that gets you started in the right direction...


barry bouwsma


      


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Re: [linux-dvb] cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type

[Goga777]

> > "cat: /dev/dvb/adapter0/dvr0: Value too large for
> > defined data type"
> > 
> > is it possible to fix it ?
> 
> This is a result of error EOVERFLOW.
> 
> I found mention of this in some very old documentation I have
> but which doesn't appear to be present in the very limited
> searching I've done on the existing source repositories.
> 
> I also can't find a particular pointer I read years back, which
> led me to tweak the value of DVB_BUFFER_SIZE in dvb-core/dmxdev.h
> so solve some problem I can't remember.
> 
> The documentation points to DMX_SET_BUFFER_SIZE.  Programs like
> `szap' seem to set this to 64k.
> 
> Hope that gets you started in the right direction...



so, google has found this link
http://panteltje.com/panteltje/dvd/

======================================================
Attention,
if you do cat /dev/dvb/adapter0/dvr0 > file.ts and get error 'Value too large for defined data type', 
then this indicates a buffer overflow in the DVB driver! 
In this case modify dmxdev.h in the DVB driver so it reads: 
#define DVR_BUFFER_SIZE (100*188*1024) // was 10*188*1024 
You can do this if you have a kernel source >= 2.6 in the driver (check with uname -a): 
/usr/src/linux/drivers/media/dvb/dvb-core/dmxdev.h 
then recompile (make modules?). 
======================================================


I have corrected /usr/src/liplianindvb/linux/drivers/media/dvb/dvb-core/dmxdev.h

#define DVR_BUFFER_SIZE (100*188*1024)

but it didn't help me and after re-compilation I have the same problem

Goga


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Re: [linux-dvb] cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type

[ChaosMedia > WebDev]

Goga777 wrote:
>
> env LANG=C cat /dev/dvb/adapter0/dvr0 | ffplay - 
>
>   
> "cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type"
>
> is it possible to fix it ?
>
>   
i usually have better results with dd

i don't remember the exact command line but it should be something like :

dd id=/dev/dvb/adapter0/dvr0 conv=noerror | mplayer -

but it's not perfect and also suffer buffer problem, i know you can set some buffer sizes with dd but i couldn't get something working flawlessly

try googling "dd dvr0 mplayer" you may find some more clues..


Marc


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Re: [linux-dvb] cat: /dev/dvb/adapter0/dvr0: Value too large fordefined data type

[Goga777]

> > env LANG=C cat /dev/dvb/adapter0/dvr0 | ffplay - 
> >
> >   
> > "cat: /dev/dvb/adapter0/dvr0: Value too large for defined data type"
> >
> > is it possible to fix it ?
> >
> >   
> i usually have better results with dd
> 
> i don't remember the exact command line but it should be something like :
> 
> dd id=/dev/dvb/adapter0/dvr0 conv=noerror | mplayer -
> 
> but it's not perfect and also suffer buffer problem, i know you can set some buffer sizes with dd but i couldn't get something working flawlessly
> 
> try googling "dd dvr0 mplayer" you may find some more clues..

seems to me it's temporary solutiuon. How to fix this bug if I will use the software like VDR , not szap2 & MPlayer ?

Goga

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