Re: [mythtv] Audio sync problem with recent CVS build

2005-04-18 Thread Ed W
I believe Quicktime uses 600Hz for their clock, it can be factored by 24, 25, 30, 50, and 60 so it can be used for film, PAL, and NTSC with a very small framerate error. I don't recall exactly, but I think I tried this first and found that at least my RTC clock wouldn't have 600 as a valid

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-18 Thread Ed W
I think you have interlace sync issues. If you are running MythTv with 25Hz output frame rate the 50Hz fields can be either in sync or out of sync. When there is motion in the picture all is smooth when the fields are in sync. If they go out of sync you will ge a lot of motion jitter. If you are

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-12 Thread Robert Johnston
On Apr 12, 2005 2:58 AM, Tom Hughes [EMAIL PROTECTED] wrote: I've done some investigating now and it seems that despite glXQueryExtensionsString indicating that GLX_SGI_video_sync is supported any call to glXGetVideoSyncSGI or glXWaitVideoSyncSGI will fail. Unfortunately by that time myth

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-12 Thread Tom Hughes
In message [EMAIL PROTECTED] Robert Johnston [EMAIL PROTECTED] wrote: On Apr 12, 2005 2:58 AM, Tom Hughes [EMAIL PROTECTED] wrote: I've done some investigating now and it seems that despite glXQueryExtensionsString indicating that GLX_SGI_video_sync is supported any call to

[mythtv] Audio sync problem with recent CVS build

2005-04-10 Thread Tom Hughes
I just tried the 20050407 CVS build from ATrpms and it seems to have terrible audio sync problems on my system. If I start playing a recording then it starts with the audio playing more or less normally but within a few seconds it has speeded up to a ridiculously fast speed. I've attached the

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-10 Thread Isaac Richards
On Sunday 10 April 2005 10:39 am, Tom Hughes wrote: I just tried the 20050407 CVS build from ATrpms and it seems to have terrible audio sync problems on my system. If I start playing a recording then it starts with the audio playing more or less normally but within a few seconds it has

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-10 Thread Tom Hughes
In message [EMAIL PROTECTED] Isaac Richards [EMAIL PROTECTED] wrote: On Sunday 10 April 2005 10:39 am, Tom Hughes wrote: I've attached the frontend log output in case it helps - the only thing in there that I noticed that is new is the use of OpenGL vsync support. Previous

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-10 Thread Ed W
I've attached the frontend log output in case it helps - the only thing in there that I noticed that is new is the use of OpenGL vsync support. Previous ATrpms builds have not had that and so RTC timing has been used. There's a reason that that defaults to off. FYI: I get lots of

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-10 Thread Terry Barnaby
Ed W wrote: I've attached the frontend log output in case it helps - the only thing in there that I noticed that is new is the use of OpenGL vsync support. Previous ATrpms builds have not had that and so RTC timing has been used. There's a reason that that defaults to off. FYI: I get lots

Re: [mythtv] Audio sync problem with recent CVS build

2005-04-10 Thread Isaac Richards
On Sunday 10 April 2005 12:14 pm, Tom Hughes wrote: In message [EMAIL PROTECTED] Isaac Richards [EMAIL PROTECTED] wrote: On Sunday 10 April 2005 10:39 am, Tom Hughes wrote: I've attached the frontend log output in case it helps - the only thing in there that I noticed that is