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internal player and h264 mkv files

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marius at schrecker

Nov 13, 2009, 2:25 PM

Post #1 of 5 (724 views)
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internal player and h264 mkv files

Hi,

Using the internal player and h264 mkv files, I get unwatchable blocky playback. mplayer -fs -vo vdpau -vc ffh264vdpau -ao alsa plays them back beautifully, but I can`t use it with SG`s.. Does anyone know if this is a known issue with the internal player?

Cheers!

Marius

greg at phaze

Nov 13, 2009, 2:30 PM

Post #2 of 5 (721 views)
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Re: internal player and h264 mkv files [In reply to]

> blocky playback. mplayer -fs -vo vdpau -vc ffh264vdpau -ao alsa plays
> them back beautifully, but I can`t use it with SG`s.. Does anyone know
> if this is a known issue with the internal player?

You are likely running into a problem where the videos are using too many reference frames.

There is a work around for it (you can get myth to up it's internal limit) which should be automatic in 0.23. If you search the list for posts by Mark Kendall I think you will find the work around. I'm not sure if it requires an environment variable or code change.

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tralph11 at yahoo

Nov 13, 2009, 3:52 PM

Post #3 of 5 (716 views)
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Re: internal player and h264 mkv files [In reply to]

--- On Fri, 11/13/09, Marius Schrecker <marius [at] schrecker> wrote:

> From: Marius Schrecker <marius [at] schrecker>
> Subject: [mythtv-users] internal player and h264 mkv files
> To: mythtv-users [at] mythtv
> Date: Friday, November 13, 2009, 5:25 PM
> Hi,
>
>
>
> Using the internal player and h264 mkv files, I get
> unwatchable blocky playback. mplayer -fs -vo vdpau -vc
> ffh264vdpau -ao alsa plays them back beautifully, but I
> can`t use it with SG`s.. Does anyone know if this is a known
> issue with the internal player?
>

Marius,

Please try the patch attached to the following ticket and let us know how it goes.

http://svn.mythtv.org/trac/ticket/7454

Regards.

--
Taylor

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marius at schrecker

Nov 15, 2009, 11:49 PM

Post #4 of 5 (661 views)
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Re: internal player and h264 mkv files [In reply to]

On Sat Nov 14 0:52 , Taylor Ralph <tralph11 [at] yahoo> wrote:--- On Fri, 11/13/09, Marius Schrecker <marius [at] schrecker> wrote:

> From: Marius Schrecker <marius [at] schrecker>
>> Subject: [mythtv-users] internal player and h264 mkv files
>> To: mythtv-users [at] mythtv
>> Date: Friday, November 13, 2009, 5:25 PM
>> Hi,
>>
>>
>>
>> Using the internal player and h264 mkv files, I get
>> unwatchable blocky playback. mplayer -fs -vo vdpau -vc
>> ffh264vdpau -ao alsa plays them back beautifully, but I
>> can`t use it with SG`s.. Does anyone know if this is a known
>> issue with the internal player?
>>

>Marius,

>Please try the patch attached to the following ticket and let us know how it goes.

>http://svn.mythtv.org/trac/ticket/7454

>Regards.
>
>--
>Taylor

Thanks very much for the patch, Taylor.

I'd love to apply it, but am unlikely to have time for a couple of weeks, due to very low WAF of me messing about on Myth.

Will keep updating from JYA's sources, and add the patch when the wife goes on holiday for a few days, if nothing has changed before then.

In the meantime and as a workaround, I've migrated from SG's to local mounts, and will use mplayer as the default video player.

Cheers!

Marius

Marius
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tralph11 at yahoo

Nov 16, 2009, 7:13 AM

Post #5 of 5 (640 views)
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Re: internal player and h264 mkv files [In reply to]

--- On Mon, 11/16/09, Marius Schrecker <marius [at] schrecker> wrote:

> From: Marius Schrecker <marius [at] schrecker>
> Subject: Re: [mythtv-users] internal player and h264 mkv files
> To: mythtv-users [at] mythtv
> Date: Monday, November 16, 2009, 2:49 AM
> On Sat Nov 14 0:52 , Taylor
> Ralph <tralph11 [at] yahoo>
> wrote:--- On Fri, 11/13/09, Marius Schrecker <marius [at] schrecker>
> wrote:
>
> > From: Marius Schrecker <marius [at] schrecker>
> >> Subject: [mythtv-users] internal player and h264
> mkv files
> >> To: mythtv-users [at] mythtv
> >> Date: Friday, November 13, 2009, 5:25 PM
> >> Hi,
> >>
> >>
> >>
> >> Using the internal player and h264 mkv files, I
> get
> >> unwatchable blocky playback. mplayer -fs -vo vdpau
> -vc
> >> ffh264vdpau -ao alsa plays them back beautifully,
> but I
> >> can`t use it with SG`s.. Does anyone know if this
> is a known
> >> issue with the internal player?
> >>
>
> >Marius,
>
> >Please try the patch attached to the following ticket
> and let us know how it goes.
>
> >http://svn.mythtv.org/trac/ticket/7454
>
> >Regards.
> >
> >--
> >Taylor
>
>
> Thanks very much for the patch, Taylor.
>
> I'd love to apply it, but am unlikely to have time for a
> couple of weeks, due to very low WAF of me messing about on
> Myth.
>
> Will keep updating from JYA's sources, and add the patch
> when the wife goes on holiday for a few days, if nothing has
> changed before then.
>
> In the meantime and as a workaround, I've migrated from
> SG's to local mounts, and will use mplayer as the default
> video player.
>

Marius,

When you do have time be sure to, as Greg suggested, try and change the number of VDPAU buffers since this also may be the root cause of your problem. This doesn't require compiling anything as 0.22-fixes and later allow this to be set in the filters section of playback profiles. Please reference the following ticket for an explanation of how to change the number of VDPAU buffers.

http://svn.mythtv.org/trac/ticket/7405

Regards,

--
Taylor

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