[mythtv] Found a severe decoding bug in mythffplay

[Mark Robinson]

Turns out the problem was the hue was set to zero instead of 50.

Tres odd.

Mark

On Fri, May 4, 2012 at 1:32 PM, Michael T. Dean <mtdean at thirdcontact.com>wrote:

> On 05/04/2012 04:07 PM, Mark Robinson wrote:
>
>> On Fri, May 4, 2012 at 12:44 PM, Michael T. Dean wrote:
>>
>>  On 05/04/2012 03:23 PM, Mark Robinson wrote:
>>>
>>>  On Thu, May 3, 2012 at 9:41 PM, Raymond Wagner wrote:
>>>>
>>>>  On 5/3/2012 23:39, Mark Robinson wrote:
>>>>>
>>>>>  I just upgraded to MythTV-0.25-fixes and I've found a rather serious
>>>>>> decoding bug.
>>>>>>
>>>>>> If you use mythffplay to play a video file then the blue and red color
>>>>>> channels will be reversed.
>>>>>>
>>>>>> If I play the video on a different machine, it works fine.
>>>>>> If I play the video using Xine or mplayer on the same machine, it
>>>>>> works
>>>>>> fine.
>>>>>>
>>>>>> Only mythffplay causes problems.
>>>>>>
>>>>>>  If `mythffplay` doesn't work, the best option would be to disable
>>>>> it, or
>>>>> just simply not use it.  MythTV's diagnostic playback tool is
>>>>> `mythavtest`.
>>>>>  We added `mythffmpeg` to give a static copy of the ffmpeg transcoding
>>>>> utility for scripts to use, built off MythTV's internal snapshot of the
>>>>> ffmpeg libraries.  `mythffplay` gets compiled for no reason other than
>>>>> we
>>>>> could.
>>>>>
>>>>>  I've tried mythavtest.  It also swaps the color channels.
>>>>
>>>>
>>>>  Are you using a version of MythTV after Apr 13 (either 0.25-fixes or
>>> unstable/development/master)?
>>>
>>> https://github.com/MythTV/****mythtv/commit/0f8476995<https://github.com/MythTV/**mythtv/commit/0f8476995>
>>> <https:**//github.com/MythTV/mythtv/**commit/0f8476995<https://github.com/MythTV/mythtv/commit/0f8476995>
>>> >
>>>
>> I'm using 0.25-fixes.
>>
>
> Yes, but which revision.
>
> mythfrontend --version
>
>
>
>  So I managed to 'solve' the problem by setting the video output driver to
>> be OpenGL rather than Xv.  However, if I use mplayer or xine and force
>> them
>> to use the Xv output they work fine.
>>
>
> If you're using a new enough revision of 0.25-fixes, please go into
> playback with the Xv video renderer, and hit F (one or more times, as
> required), then adjust the hue--likely to either 0 or 50.
>
>
> Mike
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