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Vaapi use on Sandy Bridge

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williammotten at gmail

Jan 26, 2012, 9:07 AM

Post #1 of 52 (953 views)
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Vaapi use on Sandy Bridge

I'm just getting started in understanding the VAAPI use in Mythtv and have
a couple questions concerning it's use. I have read through countless posts
and basically understand that VAAPI isn't complete but should be usable
without deinterlacing. I'm currently using a core i5 2405S and an Intel
DH67CFB3 motherboard itx and Ubuntu 11.10 64 bit via Mythbuntu with fixes.
I setup a playback profile for VAAPI using VAAPI Acceleration for the
decoder, Openglvaapi for the render and opengl2 for the osd render and none
for deinterlacing. When I try to play a tv recording either 720 or 1080p, I
hear audio for a second then I get a blank screen then Mythtv restarts. I
have attached the frontend log but I don't see any error when the problem
happens. Now a bit of history. I followed this post:

http://www.gossamer-threads.com/lists/mythtv/users/501091

Which follows an XBMC post to get an Ubuntu system working with VAAPI. The
user says he has a working mythtv .25 with VAAPI (The user has been very
helpful). I followed the steps which were pretty simple:
Install
sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
gtk2-engines-pixbuf
Mythtv .25

So my questions:
My attempt at get VAAPI working has failed...what is the problem / error in
Mythtv?
Does Ubuntu 11.10 come with all the needed software to support VAAPI?
Is there a way other than the VAAPI selection in Mythtv to know if VAAPI is
being used?
Any advice would be appreciated.

Attachments:

Mythtv (13.7 KB)

mark.kendall at gmail

Jan 26, 2012, 9:23 AM

Post #2 of 52 (926 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 26 January 2012 17:07, william otten <williammotten [at] gmail> wrote:
> So my questions:
> My attempt at get VAAPI working has failed...what is the problem / error in
> Mythtv?
> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
> Is there a way other than the VAAPI selection in Mythtv to know if VAAPI is
> being used?
> Any advice would be appreciated.

Is it just mythfrontend that crashes? or the X server? If the former,
can you try and capture some sort of backtrace
(http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2). If the
latter, it's almost impossible to tell you whether it's a driver bug
or mythtv using the driver 'inappropriately'. (In fact - can you
capture a backtrace for either situation).

The 0.25 vaapi code is tested using the ubuntu-x-swat repository
enabled to get the latest libva and related fixes - it may be worth
trying that to see if it helps.

regards

Mark
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

mark.kendall at gmail

Jan 26, 2012, 9:26 AM

Post #3 of 52 (924 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 26 January 2012 17:23, Mark Kendall <mark.kendall [at] gmail> wrote:
> On 26 January 2012 17:07, william otten <williammotten [at] gmail> wrote:
>> So my questions:
>> My attempt at get VAAPI working has failed...what is the problem / error in
>> Mythtv?
>> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
>> Is there a way other than the VAAPI selection in Mythtv to know if VAAPI is
>> being used?
>> Any advice would be appreciated.
>
> Is it just mythfrontend that crashes? or the X server? If the former,
> can you try and capture some sort of backtrace
> (http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2). If the
> latter, it's almost impossible to tell you whether it's a driver bug
> or mythtv using the driver 'inappropriately'. (In fact - can you
> capture a backtrace for either situation).
>
> The 0.25 vaapi code is tested using the ubuntu-x-swat repository
> enabled to get the latest libva and related fixes - it may be worth
> trying that to see if it helps.

Oh - and you may want to try and update myth to the very latest code -
I commited an opengl fix today that might be relevant.

Mark
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 26, 2012, 9:30 AM

Post #4 of 52 (921 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/26/2012 11:26 AM, Mark Kendall wrote:
> On 26 January 2012 17:23, Mark Kendall<mark.kendall [at] gmail> wrote:
>> On 26 January 2012 17:07, william otten<williammotten [at] gmail> wrote:
>>> So my questions:
>>> My attempt at get VAAPI working has failed...what is the problem / error in
>>> Mythtv?
>>> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
>>> Is there a way other than the VAAPI selection in Mythtv to know if VAAPI is
>>> being used?
>>> Any advice would be appreciated.
>> Is it just mythfrontend that crashes? or the X server? If the former,
>> can you try and capture some sort of backtrace
>> (http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2). If the
>> latter, it's almost impossible to tell you whether it's a driver bug
>> or mythtv using the driver 'inappropriately'. (In fact - can you
>> capture a backtrace for either situation).
>>
>> The 0.25 vaapi code is tested using the ubuntu-x-swat repository
>> enabled to get the latest libva and related fixes - it may be worth
>> trying that to see if it helps.
> Oh - and you may want to try and update myth to the very latest code -
> I commited an opengl fix today that might be relevant.
>
> Mark
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
It's the frontend that crashes not the x server. Also this system is
just a frontend.
I will take a look at the backtrace option.
Also I will setup the ubuntu-x-swat repo and look for the latest update
you submitted today.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 26, 2012, 11:09 AM

Post #5 of 52 (916 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/26/2012 11:30 AM, William Otten wrote:
> On 1/26/2012 11:26 AM, Mark Kendall wrote:
>> On 26 January 2012 17:23, Mark Kendall<mark.kendall [at] gmail> wrote:
>>> On 26 January 2012 17:07, william otten<williammotten [at] gmail>
>>> wrote:
>>>> So my questions:
>>>> My attempt at get VAAPI working has failed...what is the problem /
>>>> error in
>>>> Mythtv?
>>>> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
>>>> Is there a way other than the VAAPI selection in Mythtv to know if
>>>> VAAPI is
>>>> being used?
>>>> Any advice would be appreciated.
>>> Is it just mythfrontend that crashes? or the X server? If the former,
>>> can you try and capture some sort of backtrace
>>> (http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2). If the
>>> latter, it's almost impossible to tell you whether it's a driver bug
>>> or mythtv using the driver 'inappropriately'. (In fact - can you
>>> capture a backtrace for either situation).
>>>
>>> The 0.25 vaapi code is tested using the ubuntu-x-swat repository
>>> enabled to get the latest libva and related fixes - it may be worth
>>> trying that to see if it helps.
>> Oh - and you may want to try and update myth to the very latest code -
>> I commited an opengl fix today that might be relevant.
>>
>> Mark
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users [at] mythtv
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
> It's the frontend that crashes not the x server. Also this system is
> just a frontend.
> I will take a look at the backtrace option.
> Also I will setup the ubuntu-x-swat repo and look for the latest
> update you submitted today.
Tried the ubuntu-x-swat repo and no change. Still waiting for the mythtv
update.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 26, 2012, 11:35 AM

Post #6 of 52 (914 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/26/2012 1:09 PM, William Otten wrote:
> On 1/26/2012 11:30 AM, William Otten wrote:
>> On 1/26/2012 11:26 AM, Mark Kendall wrote:
>>> On 26 January 2012 17:23, Mark Kendall<mark.kendall [at] gmail> wrote:
>>>> On 26 January 2012 17:07, william otten<williammotten [at] gmail>
>>>> wrote:
>>>>> So my questions:
>>>>> My attempt at get VAAPI working has failed...what is the problem /
>>>>> error in
>>>>> Mythtv?
>>>>> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
>>>>> Is there a way other than the VAAPI selection in Mythtv to know if
>>>>> VAAPI is
>>>>> being used?
>>>>> Any advice would be appreciated.
>>>> Is it just mythfrontend that crashes? or the X server? If the former,
>>>> can you try and capture some sort of backtrace
>>>> (http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2). If the
>>>> latter, it's almost impossible to tell you whether it's a driver bug
>>>> or mythtv using the driver 'inappropriately'. (In fact - can you
>>>> capture a backtrace for either situation).
>>>>
>>>> The 0.25 vaapi code is tested using the ubuntu-x-swat repository
>>>> enabled to get the latest libva and related fixes - it may be worth
>>>> trying that to see if it helps.
>>> Oh - and you may want to try and update myth to the very latest code -
>>> I commited an opengl fix today that might be relevant.
>>>
>>> Mark
>>> _______________________________________________
>>> mythtv-users mailing list
>>> mythtv-users [at] mythtv
>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>> It's the frontend that crashes not the x server. Also this system is
>> just a frontend.
>> I will take a look at the backtrace option.
>> Also I will setup the ubuntu-x-swat repo and look for the latest
>> update you submitted today.
> Tried the ubuntu-x-swat repo and no change. Still waiting for the
> mythtv update.
I reviewed the Mythtv how to site for troubleshooting and the webpage is
confusing for someone that isn't use to compiling. If I understand it
correctly, I need to re-compile mythtv with debugging.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 26, 2012, 12:33 PM

Post #7 of 52 (911 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/26/2012 1:35 PM, William Otten wrote:
> On 1/26/2012 1:09 PM, William Otten wrote:
>> On 1/26/2012 11:30 AM, William Otten wrote:
>>> On 1/26/2012 11:26 AM, Mark Kendall wrote:
>>>> On 26 January 2012 17:23, Mark Kendall<mark.kendall [at] gmail> wrote:
>>>>> On 26 January 2012 17:07, william otten<williammotten [at] gmail>
>>>>> wrote:
>>>>>> So my questions:
>>>>>> My attempt at get VAAPI working has failed...what is the problem
>>>>>> / error in
>>>>>> Mythtv?
>>>>>> Does Ubuntu 11.10 come with all the needed software to support
>>>>>> VAAPI?
>>>>>> Is there a way other than the VAAPI selection in Mythtv to know
>>>>>> if VAAPI is
>>>>>> being used?
>>>>>> Any advice would be appreciated.
>>>>> Is it just mythfrontend that crashes? or the X server? If the former,
>>>>> can you try and capture some sort of backtrace
>>>>> (http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2). If the
>>>>> latter, it's almost impossible to tell you whether it's a driver bug
>>>>> or mythtv using the driver 'inappropriately'. (In fact - can you
>>>>> capture a backtrace for either situation).
>>>>>
>>>>> The 0.25 vaapi code is tested using the ubuntu-x-swat repository
>>>>> enabled to get the latest libva and related fixes - it may be worth
>>>>> trying that to see if it helps.
>>>> Oh - and you may want to try and update myth to the very latest code -
>>>> I commited an opengl fix today that might be relevant.
>>>>
>>>> Mark
>>>> _______________________________________________
>>>> mythtv-users mailing list
>>>> mythtv-users [at] mythtv
>>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>> It's the frontend that crashes not the x server. Also this system is
>>> just a frontend.
>>> I will take a look at the backtrace option.
>>> Also I will setup the ubuntu-x-swat repo and look for the latest
>>> update you submitted today.
>> Tried the ubuntu-x-swat repo and no change. Still waiting for the
>> mythtv update.
> I reviewed the Mythtv how to site for troubleshooting and the webpage
> is confusing for someone that isn't use to compiling. If I understand
> it correctly, I need to re-compile mythtv with debugging.
I wanted to find out if there were any compatibility problems with my
hardware so I tried out Openelec. This seemed to work fine. The CPU
usage was 6 - 12% and the recordings and videos played with a very good
quality and no tearing.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 26, 2012, 1:54 PM

Post #8 of 52 (908 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/26/2012 2:33 PM, William Otten wrote:
> On 1/26/2012 1:35 PM, William Otten wrote:
>> On 1/26/2012 1:09 PM, William Otten wrote:
>>> On 1/26/2012 11:30 AM, William Otten wrote:
>>>> On 1/26/2012 11:26 AM, Mark Kendall wrote:
>>>>> On 26 January 2012 17:23, Mark Kendall<mark.kendall [at] gmail>
>>>>> wrote:
>>>>>> On 26 January 2012 17:07, william otten<williammotten [at] gmail>
>>>>>> wrote:
>>>>>>> So my questions:
>>>>>>> My attempt at get VAAPI working has failed...what is the problem
>>>>>>> / error in
>>>>>>> Mythtv?
>>>>>>> Does Ubuntu 11.10 come with all the needed software to support
>>>>>>> VAAPI?
>>>>>>> Is there a way other than the VAAPI selection in Mythtv to know
>>>>>>> if VAAPI is
>>>>>>> being used?
>>>>>>> Any advice would be appreciated.
>>>>>> Is it just mythfrontend that crashes? or the X server? If the
>>>>>> former,
>>>>>> can you try and capture some sort of backtrace
>>>>>> (http://www.mythtv.org/docs/mythtv-HOWTO-22.html#ss22.2). If the
>>>>>> latter, it's almost impossible to tell you whether it's a driver bug
>>>>>> or mythtv using the driver 'inappropriately'. (In fact - can you
>>>>>> capture a backtrace for either situation).
>>>>>>
>>>>>> The 0.25 vaapi code is tested using the ubuntu-x-swat repository
>>>>>> enabled to get the latest libva and related fixes - it may be worth
>>>>>> trying that to see if it helps.
>>>>> Oh - and you may want to try and update myth to the very latest
>>>>> code -
>>>>> I commited an opengl fix today that might be relevant.
>>>>>
>>>>> Mark
>>>>> _______________________________________________
>>>>> mythtv-users mailing list
>>>>> mythtv-users [at] mythtv
>>>>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>>> It's the frontend that crashes not the x server. Also this system
>>>> is just a frontend.
>>>> I will take a look at the backtrace option.
>>>> Also I will setup the ubuntu-x-swat repo and look for the latest
>>>> update you submitted today.
>>> Tried the ubuntu-x-swat repo and no change. Still waiting for the
>>> mythtv update.
>> I reviewed the Mythtv how to site for troubleshooting and the webpage
>> is confusing for someone that isn't use to compiling. If I understand
>> it correctly, I need to re-compile mythtv with debugging.
> I wanted to find out if there were any compatibility problems with my
> hardware so I tried out Openelec. This seemed to work fine. The CPU
> usage was 6 - 12% and the recordings and videos played with a very
> good quality and no tearing.
I tried one quick test concerning opengl. I took the current playback
profile:
1080p
decoder - ffmpeg
render - xlib
OSD render - softblend
720p
decoder - ffmpeg
render - xvideo
OSD render - softblend

and changed it to:
1080p
decoder - ffmpeg
render - opengl / opengl-lite
OSD render - opengl2
720p
decoder - ffmpeg
render - opengl / opengl-lite
OSD render - opengl2

I got the same issue as before where one second of audio then mythtv
restarts. So it may point to opengl.

_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

mark.kendall at gmail

Jan 26, 2012, 2:48 PM

Post #9 of 52 (907 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 26 January 2012 21:54, William Otten <williammotten [at] gmail> wrote:
> I tried one quick test concerning opengl. I took the current playback
> profile:
> 1080p
> decoder - ffmpeg
> render - xlib
> OSD render - softblend
> 720p
> decoder - ffmpeg
> render - xvideo
> OSD render - softblend
>
> and changed it to:
> 1080p
> decoder - ffmpeg
> render - opengl / opengl-lite
> OSD render - opengl2
> 720p
> decoder - ffmpeg
> render - opengl / opengl-lite
> OSD render - opengl2
>
> I got the same issue as before where one second of audio then mythtv
> restarts. So it may point to opengl.

In that case, your problem is probably the same as:-

http://code.mythtv.org/trac/ticket/10270

I'm hoping the mythtv side of that problem was fixed in the commit I
made to master today - so would be very interesting to hear once you
get a newer build (I'm assuming you're using the mythbuntu daily
master builds).

thanks and regards

Mark
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mtdean at thirdcontact

Jan 26, 2012, 3:07 PM

Post #10 of 52 (907 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 01/26/2012 02:35 PM, William Otten wrote:
> I reviewed the Mythtv how to site for troubleshooting and the webpage is
> confusing for someone that isn't use to compiling. If I understand it
> correctly, I need to re-compile mythtv with debugging.

http://www.mythtv.org/wiki/Debugging

Mike
_______________________________________________
mythtv-users mailing list
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http://www.mythtv.org/mailman/listinfo/mythtv-users

kpyle at austin

Jan 26, 2012, 7:24 PM

Post #11 of 52 (920 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 01/26/12 15:46, William Otten wrote:
> I'm just getting started in understanding the VAAPI use in Mythtv and have
> a couple questions concerning it's use. I have read through countless posts
> and basically understand that VAAPI isn't complete but should be usable
> without deinterlacing. I'm currently using a core i5 2405S and an Intel
> DH67CFB3 motherboard itx and Ubuntu 11.10 64 bit via Mythbuntu with fixes.
> I setup a playback profile for VAAPI using VAAPI Acceleration for the
> decoder, Openglvaapi for the render and opengl2 for the osd render and none
> for deinterlacing. When I try to play a tv recording either 720 or 1080p, I
> hear audio for a second then I get a blank screen then Mythtv restarts. I
> have attached the frontend log but I don't see any error when the problem
> happens. Now a bit of history. I followed this post:
>
> http://www.gossamer-threads.com/lists/mythtv/users/501091
>
> Which follows an XBMC post to get an Ubuntu system working with VAAPI. The
> user says he has a working mythtv .25 with VAAPI (The user has been very
> helpful). I followed the steps which were pretty simple:
> Install
> sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
> gtk2-engines-pixbuf
> Mythtv .25
>
> So my questions:
> My attempt at get VAAPI working has failed...what is the problem / error in
> Mythtv?
> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
> Is there a way other than the VAAPI selection in Mythtv to know if VAAPI is
> being used?
> Any advice would be appreciated.
William,

I have not experimented with VAAPI as yet. However, I do have an i5
2405S running Myth 0.24 quite successfully. My experience is described
in this thread:

http://www.gossamer-threads.com/lists/mythtv/users/501137

I had an initial problem with mythfrontend crashing whenever I attempted
to use OpenGL. The crash was as you experienced. We identified the
cause as a null pointer reference in the mesa 3D driver, reported the
problem to freedesktop.org, and patched mesa with their proposed fix.
Since that time, we have had no crashes and video quality is excellent
using OpenGL. The fix to this bug was committed to the mesa repository
last week and can be seen at:

http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01
<http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01>

The patch is quite simple and involves one function in
mesa/drivers/dri/intel/intel_screen.c. Another person on this list
reported that the patch solved an identical crash for him. Before
diving into much debugging, I suggest you apply this patch to the mesa
7.11.2 code, recompile it, and give it a test.

Keith
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 27, 2012, 3:52 AM

Post #12 of 52 (891 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/26/2012 9:24 PM, Keith Pyle wrote:
> On 01/26/12 15:46, William Otten wrote:
>> I'm just getting started in understanding the VAAPI use in Mythtv and have
>> a couple questions concerning it's use. I have read through countless posts
>> and basically understand that VAAPI isn't complete but should be usable
>> without deinterlacing. I'm currently using a core i5 2405S and an Intel
>> DH67CFB3 motherboard itx and Ubuntu 11.10 64 bit via Mythbuntu with fixes.
>> I setup a playback profile for VAAPI using VAAPI Acceleration for the
>> decoder, Openglvaapi for the render and opengl2 for the osd render and none
>> for deinterlacing. When I try to play a tv recording either 720 or 1080p, I
>> hear audio for a second then I get a blank screen then Mythtv restarts. I
>> have attached the frontend log but I don't see any error when the problem
>> happens. Now a bit of history. I followed this post:
>>
>> http://www.gossamer-threads.com/lists/mythtv/users/501091
>>
>> Which follows an XBMC post to get an Ubuntu system working with VAAPI. The
>> user says he has a working mythtv .25 with VAAPI (The user has been very
>> helpful). I followed the steps which were pretty simple:
>> Install
>> sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
>> gtk2-engines-pixbuf
>> Mythtv .25
>>
>> So my questions:
>> My attempt at get VAAPI working has failed...what is the problem / error in
>> Mythtv?
>> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
>> Is there a way other than the VAAPI selection in Mythtv to know if VAAPI is
>> being used?
>> Any advice would be appreciated.
> William,
>
> I have not experimented with VAAPI as yet. However, I do have an i5
> 2405S running Myth 0.24 quite successfully. My experience is described
> in this thread:
>
> http://www.gossamer-threads.com/lists/mythtv/users/501137
>
> I had an initial problem with mythfrontend crashing whenever I attempted
> to use OpenGL. The crash was as you experienced. We identified the
> cause as a null pointer reference in the mesa 3D driver, reported the
> problem to freedesktop.org, and patched mesa with their proposed fix.
> Since that time, we have had no crashes and video quality is excellent
> using OpenGL. The fix to this bug was committed to the mesa repository
> last week and can be seen at:
>
> http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01
> <http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01>
>
> The patch is quite simple and involves one function in
> mesa/drivers/dri/intel/intel_screen.c. Another person on this list
> reported that the patch solved an identical crash for him. Before
> diving into much debugging, I suggest you apply this patch to the mesa
> 7.11.2 code, recompile it, and give it a test.
>
> Keith
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
I would love to test the patch but have no idea where to start or how to
do it. If you could give some guidance please.
Thanks
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 27, 2012, 1:00 PM

Post #13 of 52 (873 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/27/2012 5:52 AM, William Otten wrote:
> On 1/26/2012 9:24 PM, Keith Pyle wrote:
>> On 01/26/12 15:46, William Otten wrote:
>>> I'm just getting started in understanding the VAAPI use in Mythtv
>>> and have
>>> a couple questions concerning it's use. I have read through
>>> countless posts
>>> and basically understand that VAAPI isn't complete but should be usable
>>> without deinterlacing. I'm currently using a core i5 2405S and an Intel
>>> DH67CFB3 motherboard itx and Ubuntu 11.10 64 bit via Mythbuntu with
>>> fixes.
>>> I setup a playback profile for VAAPI using VAAPI Acceleration for the
>>> decoder, Openglvaapi for the render and opengl2 for the osd render
>>> and none
>>> for deinterlacing. When I try to play a tv recording either 720 or
>>> 1080p, I
>>> hear audio for a second then I get a blank screen then Mythtv
>>> restarts. I
>>> have attached the frontend log but I don't see any error when the
>>> problem
>>> happens. Now a bit of history. I followed this post:
>>>
>>> http://www.gossamer-threads.com/lists/mythtv/users/501091
>>>
>>> Which follows an XBMC post to get an Ubuntu system working with
>>> VAAPI. The
>>> user says he has a working mythtv .25 with VAAPI (The user has been
>>> very
>>> helpful). I followed the steps which were pretty simple:
>>> Install
>>> sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
>>> gtk2-engines-pixbuf
>>> Mythtv .25
>>>
>>> So my questions:
>>> My attempt at get VAAPI working has failed...what is the problem /
>>> error in
>>> Mythtv?
>>> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
>>> Is there a way other than the VAAPI selection in Mythtv to know if
>>> VAAPI is
>>> being used?
>>> Any advice would be appreciated.
>> William,
>>
>> I have not experimented with VAAPI as yet. However, I do have an i5
>> 2405S running Myth 0.24 quite successfully. My experience is described
>> in this thread:
>>
>> http://www.gossamer-threads.com/lists/mythtv/users/501137
>>
>> I had an initial problem with mythfrontend crashing whenever I attempted
>> to use OpenGL. The crash was as you experienced. We identified the
>> cause as a null pointer reference in the mesa 3D driver, reported the
>> problem to freedesktop.org, and patched mesa with their proposed fix.
>> Since that time, we have had no crashes and video quality is excellent
>> using OpenGL. The fix to this bug was committed to the mesa repository
>> last week and can be seen at:
>>
>> http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01
>>
>> <http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01>
>>
>>
>> The patch is quite simple and involves one function in
>> mesa/drivers/dri/intel/intel_screen.c. Another person on this list
>> reported that the patch solved an identical crash for him. Before
>> diving into much debugging, I suggest you apply this patch to the mesa
>> 7.11.2 code, recompile it, and give it a test.
>>
>> Keith
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users [at] mythtv
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
> I would love to test the patch but have no idea where to start or how
> to do it. If you could give some guidance please.
> Thanks
By chance I found a video that didn't crash while using vaapi. It wasn't
correct though (had a solid light-green screen that would pop up every 2
seconds for about a millisecond) but I was able to monitor the cpu usage
which was much lower.
Also is there anyone that can help me impliment the mesa patch so I can
test? It sounds like from what the other users have expressed that it
should solve my problem. I have tried the xorg-edgers ppa but I'm not
sure the patch is in there.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 27, 2012, 9:35 PM

Post #14 of 52 (870 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On Fri, Jan 27, 2012 at 3:00 PM, William Otten <williammotten [at] gmail>wrote:

> On 1/27/2012 5:52 AM, William Otten wrote:
>
>> On 1/26/2012 9:24 PM, Keith Pyle wrote:
>>
>>> On 01/26/12 15:46, William Otten wrote:
>>>
>>>> I'm just getting started in understanding the VAAPI use in Mythtv and
>>>> have
>>>> a couple questions concerning it's use. I have read through countless
>>>> posts
>>>> and basically understand that VAAPI isn't complete but should be usable
>>>> without deinterlacing. I'm currently using a core i5 2405S and an Intel
>>>> DH67CFB3 motherboard itx and Ubuntu 11.10 64 bit via Mythbuntu with
>>>> fixes.
>>>> I setup a playback profile for VAAPI using VAAPI Acceleration for the
>>>> decoder, Openglvaapi for the render and opengl2 for the osd render and
>>>> none
>>>> for deinterlacing. When I try to play a tv recording either 720 or
>>>> 1080p, I
>>>> hear audio for a second then I get a blank screen then Mythtv restarts.
>>>> I
>>>> have attached the frontend log but I don't see any error when the
>>>> problem
>>>> happens. Now a bit of history. I followed this post:
>>>>
>>>> http://www.gossamer-threads.**com/lists/mythtv/users/501091<http://www.gossamer-threads.com/lists/mythtv/users/501091>
>>>>
>>>> Which follows an XBMC post to get an Ubuntu system working with VAAPI.
>>>> The
>>>> user says he has a working mythtv .25 with VAAPI (The user has been very
>>>> helpful). I followed the steps which were pretty simple:
>>>> Install
>>>> sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
>>>> gtk2-engines-pixbuf
>>>> Mythtv .25
>>>>
>>>> So my questions:
>>>> My attempt at get VAAPI working has failed...what is the problem /
>>>> error in
>>>> Mythtv?
>>>> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
>>>> Is there a way other than the VAAPI selection in Mythtv to know if
>>>> VAAPI is
>>>> being used?
>>>> Any advice would be appreciated.
>>>>
>>>
> I decided to start over from scratch since I had tried alot different
things. In stepping back through in getting things installed I wanted to
verify a couple of things. Previously I loaded the following:
sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
gtk2-engines-pixbuf
based on another user's installation and I wanted to make sure they were
needed, This time I didn't load them. I had ubuntu and mythtv installed and
I tried the vaapi for the decoder and it worked or so I thought. I looked
at the cpu use and it was between 32 - 40% (using system monitor looking at
mythfrontend.real) then I loaded vainfo and got the same result. I then
loaded i965-va-driver and the result was mythtv freezing with a black
screen (this is different than the original problem but I have since loaded
newer mythtv changes). So the questions I have:
1. How do I know if vaapi is really running? How can I verify?
2. What supporting items are needed for vaapi to work in mythtv? ie
vainfo, i965-va-driver,
etc...
3. This may sound like a stupid question but another user didn't even
realise they needed to do this....vaapi needs to be selected as the decoder
in the playback profile to use vaapi?

Sorry for the bother but I wanted to get the information from the source
this time.

mark.kendall at gmail

Jan 28, 2012, 12:00 AM

Post #15 of 52 (870 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 28 January 2012 05:35, william otten <williammotten [at] gmail> wrote:
> I decided to start over from scratch since I had tried alot different
> things. In stepping back through in getting things installed I wanted to
> verify a couple of things. Previously I loaded the following:
> sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
> gtk2-engines-pixbuf
> based on another user's installation and I wanted to make sure they were
> needed, This time I didn't load them. I had ubuntu and mythtv installed and
> I tried the vaapi for the decoder and it worked or so I thought. I looked at
> the cpu use and it was between 32 - 40% (using system monitor looking at
> mythfrontend.real) then I loaded vainfo and got the same result. I then
> loaded i965-va-driver and the result was mythtv freezing with a black screen
> (this is different than the original problem but I have since loaded newer
> mythtv changes). So the questions I have:
> 1. How do I know if vaapi is really running? How can I verify?

You should get some detail with normal log levels but for extra
information, run 'mythfrontend -v playback'. That should give you
plenty of information about what's happening with VAAPI.

Alternatively, in the OSD menu, go to Playback->Playback data. You
should see vaapi as the decoder (if it's working - if not it will say
ffmpeg).

> 2. What supporting items are needed for vaapi to work in mythtv? ie vainfo,
> i965-va-driver, etc...

In your situation, you should only need i965-va-driver (I think -
which should then pull in any libva dependencies).

> 3. This may sound� like a stupid question but another user didn't even
> realise they needed to do this....vaapi needs to be selected as the decoder
> in the playback profile to use vaapi?

Yes (which will force the video renderer to opengl-vaapi and the osd to opengl2)

regards

Mark
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

kenkyee at yahoo

Jan 28, 2012, 5:18 AM

Post #16 of 52 (859 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

Mark Kendall <mark.kendall [at] gmail> wrote:
>> 3. This may sound? like a stupid question but another user didn't even
>> realise they needed to do this....vaapi needs to be selected as the decoder
>> in the playback profile to use vaapi?
> Yes (which will force the video renderer to opengl-vaapi and the osd to opengl2)

I'm the other user William mentioned.
In the playback profile, I chose Normal and assumed MythTV was smart enough to figure out that it could use vaapi.� Below normal, it says it's using ffmpeg and xvideo for display at the various resolutions.
I flipped through the playback profiles and saw vdpau listed as one of them, but no vaapi, so exactly how do you enable vaapi support in mythtv (0.25) on a fresh install?

vainfo claims vaapi is loaded.

richard.e.morton at gmail

Jan 28, 2012, 7:06 AM

Post #17 of 52 (853 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

Make a new profile (if it is anything like vdpau) you will need to chipper
in the profile to use vaapi decoder and or de-interlacer.

Myth doesn't use vdpau unless use tell it to so I would expect vaapi will
be similar.

R

R

Please excuse brevity and pistakes as
>
> Mark Kendall <mark.kendall [at] gmail> wrote:
> >> 3. This may sound? like a stupid question but another user didn't even
> >> realise they needed to do this....vaapi needs to be selected as the
> decoder
> >> in the playback profile to use vaapi?
> > Yes (which will force the video renderer to opengl-vaapi and the osd to
> opengl2)
>
> I'm the other user William mentioned.
> In the playback profile, I chose Normal and assumed MythTV was smart
> enough to figure out that it could use vaapi. Below normal, it says it's
> using ffmpeg and xvideo for display at the various resolutions.
> I flipped through the playback profiles and saw vdpau listed as one of
> them, but no vaapi, so exactly how do you enable vaapi support in mythtv
> (0.25) on a fresh install?
>
> vainfo claims vaapi is loaded.
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
>

williammotten at gmail

Jan 28, 2012, 7:28 AM

Post #18 of 52 (853 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On Thu, Jan 26, 2012 at 11:07 AM, william otten <williammotten [at] gmail>wrote:

> I'm just getting started in understanding the VAAPI use in Mythtv and have
> a couple questions concerning it's use. I have read through countless posts
> and basically understand that VAAPI isn't complete but should be usable
> without deinterlacing. I'm currently using a core i5 2405S and an Intel
> DH67CFB3 motherboard itx and Ubuntu 11.10 64 bit via Mythbuntu with fixes.
> I setup a playback profile for VAAPI using VAAPI Acceleration for the
> decoder, Openglvaapi for the render and opengl2 for the osd render and none
> for deinterlacing. When I try to play a tv recording either 720 or 1080p, I
> hear audio for a second then I get a blank screen then Mythtv restarts. I
> have attached the frontend log but I don't see any error when the problem
> happens. Now a bit of history. I followed this post:
>
> http://www.gossamer-threads.com/lists/mythtv/users/501091
>
> Which follows an XBMC post to get an Ubuntu system working with VAAPI. The
> user says he has a working mythtv .25 with VAAPI (The user has been very
> helpful). I followed the steps which were pretty simple:
> Install
> sudo apt-get install libbluray1 i965-va-driver vainfo libmad0
> gtk2-engines-pixbuf
> Mythtv .25
>
> So my questions:
> My attempt at get VAAPI working has failed...what is the problem / error
> in Mythtv?
> Does Ubuntu 11.10 come with all the needed software to support VAAPI?
> Is there a way other than the VAAPI selection in Mythtv to know if VAAPI
> is being used?
> Any advice would be appreciated.
>
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
> I'm trying to get debugging setup and am having trouble. This what I have
done.
sudo apt-get install mythtv-dbg
Modify /etc/default/apport to set "enabled" to 1
Start the apport service. "sudo start apport"
Ran this in terminal and created gdbcommands in my home directory:
cat << "EOF" | tee ${HOME}/gdbcommands handle SIGPIPE nostop noprint handle
SIG33 nostop noprint set logging on set pagination off set breakpoint
pending on break qFatal set args -l myth.log -v important,general run
thread apply all bt full set logging off EOF
Then I ran this command in terminal:
william [at] CI:~$ gdb mythfrontend -x gdbcommands
GNU gdb (Ubuntu/Linaro 7.3-0ubuntu2) 7.3-2011.08
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html
>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://bugs.launchpad.net/gdb-linaro/>...
"/usr/bin/mythfrontend": not in executable format: File format not
recognized
No symbol table is loaded. Use the "file" command.
Breakpoint 1 (qFatal) pending.
gdbcommands:8: Error in sourced command file:
No executable file specified.
Use the "file" or "exec-file" command.
(gdb)
Mythfrontend doesn't start. Any ideas?

mtdean at thirdcontact

Jan 28, 2012, 8:49 AM

Post #19 of 52 (850 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 01/28/2012 10:28 AM, william otten wrote:
> I'm trying to get debugging setup and am having trouble. This what I have
> done.
...
> Then I ran this command in terminal:
> william [at] CI:~$ gdb mythfrontend -x gdbcommands
...
> "/usr/bin/mythfrontend": not in executable format: File format not
> recognized

If you run:

file /usr/bin/mythfrontend

you'll find that Ubuntu renames mythfrontend binary and puts a script
called mythfrontend in its place. The mythfrontend script sets up the
environment properly (so you have a proper HOME directory and
configuration to allow mythfrontend to run properly), then runs the
binary--which they call mythfrontend.real.

So, you need to set up a proper environment, then redo the same thing
you've done, but using /usr/bin/mythfrontend.real as the application name.

Mike
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 28, 2012, 11:06 AM

Post #20 of 52 (843 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

Cocerning debugging, I have attached the gdb and myth files. I ran the
repeatable test several times. Let me know if further info is needed.
Thanks for all the replies. I'm having trouble posting due to some size
limit so I may have to break up the attachments.

On Sat, Jan 28, 2012 at 10:49 AM, Michael T. Dean
<mtdean [at] thirdcontact>wrote:

> On 01/28/2012 10:28 AM, william otten wrote:
> > I'm trying to get debugging setup and am having trouble. This what I have
> > done.
> ...
> > Then I ran this command in terminal:
> > william [at] CI:~$ gdb mythfrontend -x gdbcommands
> ...
> > "/usr/bin/mythfrontend": not in executable format: File format not
> > recognized
>
> If you run:
>
> file /usr/bin/mythfrontend
>
> you'll find that Ubuntu renames mythfrontend binary and puts a script
> called mythfrontend in its place. The mythfrontend script sets up the
> environment properly (so you have a proper HOME directory and
> configuration to allow mythfrontend to run properly), then runs the
> binary--which they call mythfrontend.real.
>
> So, you need to set up a proper environment, then redo the same thing
> you've done, but using /usr/bin/mythfrontend.real as the application name.
>
> Mike
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>

Attachments:

gdb.txt (8.54 KB)

williammotten at gmail

Jan 28, 2012, 11:26 AM

Post #21 of 52 (844 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On Sat, Jan 28, 2012 at 10:49 AM, Michael T. Dean
<mtdean [at] thirdcontact>wrote:

> On 01/28/2012 10:28 AM, william otten wrote:
> > I'm trying to get debugging setup and am having trouble. This what I have
> > done.
> ...
> > Then I ran this command in terminal:
> > william [at] CI:~$ gdb mythfrontend -x gdbcommands
> ...
> > "/usr/bin/mythfrontend": not in executable format: File format not
> > recognized
>
> If you run:
>
> file /usr/bin/mythfrontend
>
> you'll find that Ubuntu renames mythfrontend binary and puts a script
> called mythfrontend in its place. The mythfrontend script sets up the
> environment properly (so you have a proper HOME directory and
> configuration to allow mythfrontend to run properly), then runs the
> binary--which they call mythfrontend.real.
>
> So, you need to set up a proper environment, then redo the same thing
> you've done, but using /usr/bin/mythfrontend.real as the application name.
>
> Mike
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
Hopefully the last attempt to post the myth.log.

Attachments:

mythlog.log (16.1 KB)

kenkyee at yahoo

Jan 28, 2012, 11:39 AM

Post #22 of 52 (842 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

FYI, I did add a new profile...got to choose vaapi and it set up openglvaapi for the decoder.� I then added an entry that said > 0 0 use vaapi.
No surprise at this point, but poof...mythfrontend croaks and gets restarted.
I'm back to the Normal profile so I can keep using it.� It only sucks 15% CPU w/ ffmeg/xvideo but it'd be nice if vaapi worked because I thought it was working :-P
Looks like William and I are experiencing the same issue :-(

raymond at wagnerrp

Jan 28, 2012, 11:45 AM

Post #23 of 52 (842 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On 1/28/2012 14:39, kenkyee [at] yahoo wrote:
> It only sucks 15% CPU w/ ffmeg/xvideo but it'd be nice if vaapi worked
> because I thought it was working :-P

If you're only running 15% CPU running the software decoders, why even
bother with hardware decoding? In any case, you should be running the
OpenGL renderer rather than XVideo if at all possible.
_______________________________________________
mythtv-users mailing list
mythtv-users [at] mythtv
http://www.mythtv.org/mailman/listinfo/mythtv-users

williammotten at gmail

Jan 28, 2012, 11:51 AM

Post #24 of 52 (844 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On Sat, Jan 28, 2012 at 1:45 PM, Raymond Wagner <raymond [at] wagnerrp>wrote:

> On 1/28/2012 14:39, kenkyee [at] yahoo wrote:
> > It only sucks 15% CPU w/ ffmeg/xvideo but it'd be nice if vaapi worked
> > because I thought it was working :-P
>
> If you're only running 15% CPU running the software decoders, why even
> bother with hardware decoding? In any case, you should be running the
> OpenGL renderer rather than XVideo if at all possible.
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
In my case and maybe Ken's it is opengl that looks to be the problem. My
setup failed using opengl as the render with any usable decoder.

williammotten at gmail

Jan 28, 2012, 11:55 AM

Post #25 of 52 (843 views)
Permalink

Re: Vaapi use on Sandy Bridge [In reply to]

On Sat, Jan 28, 2012 at 1:51 PM, william otten <williammotten [at] gmail>wrote:

>
>
> On Sat, Jan 28, 2012 at 1:45 PM, Raymond Wagner <raymond [at] wagnerrp>wrote:
>
>> On 1/28/2012 14:39, kenkyee [at] yahoo wrote:
>> > It only sucks 15% CPU w/ ffmeg/xvideo but it'd be nice if vaapi worked
>> > because I thought it was working :-P
>>
>> If you're only running 15% CPU running the software decoders, why even
>> bother with hardware decoding? In any case, you should be running the
>> OpenGL renderer rather than XVideo if at all possible.
>> _______________________________________________
>> mythtv-users mailing list
>> mythtv-users [at] mythtv
>> http://www.mythtv.org/mailman/listinfo/mythtv-users
>>
> In my case and maybe Ken's it is opengl that looks to be the problem. My
> setup failed using opengl as the render with any usable decoder.
>
> _______________________________________________
> mythtv-users mailing list
> mythtv-users [at] mythtv
> http://www.mythtv.org/mailman/listinfo/mythtv-users
>
> Another user had the opengl problem but was able to apply a patch to
correct it but I can't since I'm limited in that area.
William,

I have not experimented with VAAPI as yet. However, I do have an i5
2405S running Myth 0.24 quite successfully. My experience is described
in this thread:

http://www.gossamer-threads.com/lists/mythtv/users/501137

I had an initial problem with mythfrontend crashing whenever I attempted
to use OpenGL. The crash was as you experienced. We identified the
cause as a null pointer reference in the mesa 3D driver, reported the
problem to freedesktop.org, and patched mesa with their proposed fix.
Since that time, we have had no crashes and video quality is excellent
using OpenGL. The fix to this bug was committed to the mesa repository
last week and can be seen at:

http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01
<
http://cgit.freedesktop.org/mesa/mesa/commit/?h=7.11&id=9b3ac17991b3b421591111f863f0583ef2f06a01
>

The patch is quite simple and involves one function in
mesa/drivers/dri/intel/intel_
screen.c. Another person on this list
reported that the patch solved an identical crash for him. Before
diving into much debugging, I suggest you apply this patch to the mesa
7.11.2 code, recompile it, and give it a test.

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