[mythtv-users] How to improve 720p playback (1080i ok)?
jerrymr at gmail.com
Wed Dec 1 03:38:22 UTC 2010
On Mon, Nov 29, 2010 at 11:59 PM, Jerry Rubinow <jerrymr at gmail.com> wrote:
> On Mon, Nov 29, 2010 at 11:15 PM, Robert Johnston <anaerin at gmail.com>wrote:
>> On 29/11/2010 10:12 PM, Jerry Rubinow wrote:
>>> I've been fooling around running mythfrontend compiled under Windows,
>>> got that working. I can playback 1080i content without glitches, but
>>> 720p content has frequent pauses, due to throwing away frames when the
>>> audio gets ahead of the video.
>>> In the logs, I've verified it's using Direct3D for playback. I've tried
>>> different minimal profiles, with a deinterlacer of Onefield, Linear
>>> Blend, and None (no filters in all cases), with no change in results.
>>> The content that plays fine is 1080i 30Hz, and the content that
>>> doesn't is 720p 60Hz.
>>> For the 720p content, myth is using in the low 30's % CPU, and for the
>>> 1080i, high 30's. The monitor is 60Hz.
>>> Any suggestions?
>> Try turning off (Or forcing off in the driver's control panel if it's
>> already off) vsync. It may be that Myth is just a frame slow, and the driver
>> is stopping it from updating late.
> Good thought. I went into the driver's 3D settings, and set vsync to Force
> Off. Unfortunately, no effect. OpenGL VSync in myth settings is also
> unchecked. Is there another setting somewhere?
Anyone have any other ideas?
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the mythtv-users