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List:       mythtv-dev
Subject:    Re: [mythtv] Red/blue colour swap on XvMC VLD
From:       "Robin Gilks" <g8ecj () gilks ! org>
Date:       2007-04-30 8:41:07
Message-ID: 40327.192.168.1.15.1177922467.squirrel () gilks ! ath ! cx
[Download RAW message or body]

> On Sun, 2007-04-29 at 20:53 +1200, Robin Gilks wrote:
>> Greetings
>>
>> I've found that if I use mencoder to encode a track from a DVD the red
>> and
>> blues get swapped round on my CN400 based Epia SP13000 when using the
>> Internal player.
>>
>> The display is fine in mplayer and it seems to make no difference
>> changing
>> to Standard or libmpeg2 as the display driver so I assume its something
>> to
>> do with the Unichrome chipset. The tracks play OK on my nvidia based box
>> with the Internal player.
>>
>> Does anyone know if this has been fixed in the -vid branch? - I'm
>> currently running r13317 from SVN head.
>
> This is probably an XVideo driver bug. There is a define in
> videoout_xv.cpp which will do an color swap to get around
> buggy drivers. This happens with the ATI proprietary drivers
> which advertise I420 support, but implement it as YV12. But
> since the openchrome drivers are GPL this should be easy to
> fix in the driver.
>
> BTW The reason mplayer is working is because it tries YV12
> first, while we try I420 first.

No go unfortunately - I've still got blue faces :-(

Attached is a bzipped playback log of opening the avi file, jumping
forwards a couple of 10min skips and exiting.


-- 
Robin Gilks


["play_log.bz2" (application/octet-stream)]

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