[linux-dvb] Hardware decode and dvr device
I've been going through the code for the gnutv app and the libdvbapi. It looks like the way that a demux and output method is set up is that a filter structure is created including the tuning information, output method and pids to demux/decode. Now it seems that there is only enumerated values for Hardware decode and TS_TAP to dvr device, but nothing that would set up a hardware and dvr device for the same filter. I'm assuming that this is a bit mask that is passed to the driver when it is set up and it should be possible to have a bit mask that enables both hardware decode and dvr output. Could somebody point me in the right direction for adding this to the correct header files? Thanks, Simon... ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Non blocking IO on dvr0 device
David Härdeman wrote: On Fri, November 9, 2007 03:33, Felix Domke wrote: Banana Banana wrote: On Nov 9, 2007 12:22 AM, Simon Hargreaves [EMAIL PROTECTED] wrote: I'm using 2.6.12-gentoo-r6 #1 SMP kernel. Try a more recent kernel? No, this is not the correct response to a bug. Of course it is when the poster's kernel is more than 2 years old (2.6.12 was released on June 17, 2005). snip I'm aware that the kernel release is somewhat ancient in terms of drivers and such. I was interested to find out if this was a known issue with a known fix. I have a number of machines with identical configurations and rolling out new kernel versions across a live system, and disrupting it's homogeneity, without knowing if it will fix the problem is something I was trying to avoid. I've started the process of doing a system wide update on one of the machines, because I realise that a lot happens between that many kernel versions, but the danger of losing a live system and having to rebuild is always there. I'll let you know if it fixes the problem. Thanks, Simon... ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
[linux-dvb] Command line dvb tuning utilities
What dvb tuning command line utilities are there for linux at the moment? The options I have a zap, but this does not tune to a service ID it requires specified video and audio pids, or dvbtune which although will tune into a service id it doesn't set the dvr0 device up for TS recording as well as locking the device so no other process can access it. My programme is set up to do recording directly from the dvr0 data stream, this used to work on my old kernel version but since updating my system to use 2.6.22 it now longer appears to work. The only options appear to be coding my own command line interface to the dvb device, but I'd rather not reinvent the wheel. Simon... ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Non blocking IO on dvr0 device
Simon Hargreaves wrote: David Härdeman wrote: On Fri, November 9, 2007 03:33, Felix Domke wrote: Banana Banana wrote: On Nov 9, 2007 12:22 AM, Simon Hargreaves [EMAIL PROTECTED] wrote: I'm using 2.6.12-gentoo-r6 #1 SMP kernel. Try a more recent kernel? No, this is not the correct response to a bug. Of course it is when the poster's kernel is more than 2 years old (2.6.12 was released on June 17, 2005). snip I'm aware that the kernel release is somewhat ancient in terms of drivers and such. I was interested to find out if this was a known issue with a known fix. I have a number of machines with identical configurations and rolling out new kernel versions across a live system, and disrupting it's homogeneity, without knowing if it will fix the problem is something I was trying to avoid. I've started the process of doing a system wide update on one of the machines, because I realise that a lot happens between that many kernel versions, but the danger of losing a live system and having to rebuild is always there. I'll let you know if it fixes the problem The update to the latest kernel version has broken my recording programme completely and now returns device busy. I'm using dvbtune to set up the dvr0 device for TS recording but it's now locking the device so no other program can read from it. Is this a driver level change as it used to work on the previous kernel version? Simon... ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
Re: [linux-dvb] Command line dvb tuning utilities
Manu Abraham wrote: Simon Hargreaves wrote: What dvb tuning command line utilities are there for linux at the moment? The options I have a zap, but this does not tune to a service ID it requires specified video and audio pids, or dvbtune which although will tune into a service id it doesn't set the dvr0 device up for TS recording as well as locking the device so no other process can access it. My programme is set up to do recording directly from the dvr0 data stream, this used to work on my old kernel version but since updating my system to use 2.6.22 it now longer appears to work. The only options appear to be coding my own command line interface to the dvb device, but I'd rather not reinvent the wheel. You can take a look at zap: http://linuxtv.org/hg/dvb-apps/file/bd51e3321c05/util/zap/ or gnutv: http://linuxtv.org/hg/dvb-apps/file/bd51e3321c05/util/gnutv/ gnutv does look very close what I want, it gives a wide range of options for setting up TS recording and enabling the output of an onboard mpeg decoder which is perfect. Unfortunately I need TS recording and video output from the the onboard decoder at the same time, which it doesn't seem to do. I've looked through the source code for gnutv but can't find where it sets the device up for hardware decoding. If I could find it I would be able to set it up an additional option to do both, but I can't find where it does device control. Thanks Simon... ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
[linux-dvb] Non blocking IO on dvr0 device
I've been writing a rolling video recording programme that stores the transport stream to disk in half hour chunks. And to allow it to cope with retuning of the satellite card and still continue to record I've opened the devices and used fcntl to turn it into a non blocking device. Now the systems seems to work fine apart from after about 24 hours the box runs out of system memory and no processes will run. It looks like the problem is in kernel space as there are no large processes running but there is still no memory available. I'm thinking that opening and closing the dvr0 handle as a non blocking is causing a memory leak. Is this a known issue? I'm using 2.6.12-gentoo-r6 #1 SMP kernel. Simon... ___ linux-dvb mailing list linux-dvb@linuxtv.org http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
