Opened 14 years ago
Closed 13 years ago
#9650 closed Bug Report - General (Upstream Bug)
playback of 720p stutters on OSX frontend
| Reported by: | Owned by: | Janne Grunau | |
|---|---|---|---|
| Priority: | minor | Milestone: | unknown |
| Component: | MythTV - Video Playback | Version: | 0.24-fixes |
| Severity: | medium | Keywords: | osx playback |
| Cc: | Ticket locked: | no |
Description
Playback of 720p recorded content (from HDHR) is affected by "Player(0): Video is 3.xxxxx frames behind audio (too slow), dropping frame to catch up" messages every few milliseconds on the OS X frontend. Playback of 1080i content is unaffected. Frontend binary built 03/02/11 and downloaded from sourceforge: 0.24-fixes-intel-10.6v0.24-198-g0d3d3a4-dirty.dmg Logs attached: 720p -v libav,playback: mfe720p.txt 1080i -v libav,playback: mfe1080i.txt
Attachments (2)
Change History (6)
Changed 14 years ago by
| Attachment: | mfelog720p.txt added |
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Changed 14 years ago by
| Attachment: | mfelog1080i.txt added |
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comment:1 Changed 14 years ago by
comment:2 Changed 14 years ago by
It was recently pointed out on the users list http://www.gossamer-threads.com/lists/mythtv/users/477828#477828 that this issue is tied to the Nvidia GPU. I did some testing myself and found that my conclusion about the display resolution in the above comment was not correct. In fact, the mini with the older Intel GMA950 (originally connected to the LCD monitor) get smooth 720p playback regardless of display. The newer mini, with the Nvidia GPU, generates the dropping frame messages during 720p playback.
Surprising, since Nvidia GPU's are typically recommended for MythTV. I have one in my Ubuntu 10.10 frontend and it works flawlessly.
comment:3 Changed 14 years ago by
With 10.6.7, Apple has released updated NVIDIA drivers (but only for the MacBook? Pro). Following the directions from this users list post: http://www.gossamer-threads.com/lists/mythtv/users/478654#478654 to extract the drivers from that update and install them fixed the issue on my 2009 NVIDIA mini.
comment:4 Changed 13 years ago by
| Resolution: | → Upstream Bug |
|---|---|
| Status: | new → closed |
Resolved by driver update.
I have been able to test both a 720p display as well as a 1080 display (1680x1050 LCD monitor). The "dropping frame" messages only appear when displaying to a 720p display; playback is normal on the 1080 display.