Opened 6 years ago

Closed 5 years ago

#11874 closed Bug Report - General (Invalid)

VDA : LIVE TV video playback stuttering on OSX FE ( High End 27" imac)

Reported by: trankkilou@… Owned by:
Priority: minor Milestone: unknown
Component: MythTV - Video Playback Version: 0.27-fixes
Severity: medium Keywords: Live TV video playback
Cc: Ticket locked: yes

Description (last modified by Raymond Wagner)

Hello Guys,

I'm a mythtv users since 0.21.

I'm using Intel 2.5 ghz dual core under gentoo for Back end and Front end. I got a GT 610 video card (so using vdpau high profile) and everything works very well (live tv 1080i playback, 480p ...) I gonna move in a new house next year and I wanted to buy a mac mini to use it as Frontend ( I think my pc is too noisy). Before buy this imac I looked after info about VDA decoding and in meantime I try the mythfrontend on my high end 27" 2013 Imac ( 3.2 Ghz Quad core i7 , SSD, Geforce 680 Mx 2GB...)

So here started the problems : The live tv video is stutterring for 1080i dvb-t PAL . Of course it is not a network problem (I used to be system & network engineer).

I try every profile / every renderer combinatory and I even force output to 1920x1080 size and I got problems only with VDA active I compile everything from 0.27fixes source with no pb.

In the log the only messages I get, every times it is stuttering is :

GetNextFreeFrame?() unable to lock frame 100 times. Discarding Frames.

Without VDA because as my CPU is very powerfull it could software decode everything even with a greedy desinterlacer (2x interlacer -> 14% CPU....) .

Please note this is worst with 'valid' desinterlacer (many fail to load like greedymotion) Please note with opengl lite it & "interlaced 2x" works better than others in VDA ( 5 mins before seeing the lag instead of 5 sec with every others) Please note no pb without VDA

So now i'm very worried about buying a mac midi to be my next FE...

I can make more tests if you need !

Attachments (4)

no_vda.log (2.7 KB) - added by Raymond Wagner 6 years ago.
vda_no_deint.log (4.8 KB) - added by Raymond Wagner 6 years ago.
vda_opengl_lite.log (4.8 KB) - added by Raymond Wagner 6 years ago.
vda_with_deint.log (5.1 KB) - added by Raymond Wagner 6 years ago.

Download all attachments as: .zip

Change History (8)

comment:1 Changed 6 years ago by trankkilou@…

It seems no one use OSX as FE ?

comment:2 Changed 6 years ago by Raymond Wagner

Milestone: 0.27.1unknown
Severity: highmedium
Ticket locked: set

Resetting defaults. Locking due to bump. Cleaning up hideously long description.

Changed 6 years ago by Raymond Wagner

Attachment: no_vda.log added

Changed 6 years ago by Raymond Wagner

Attachment: vda_no_deint.log added

Changed 6 years ago by Raymond Wagner

Attachment: vda_opengl_lite.log added

Changed 6 years ago by Raymond Wagner

Attachment: vda_with_deint.log added

comment:3 Changed 6 years ago by Raymond Wagner

Description: modified (diff)

comment:4 Changed 5 years ago by JYA

Resolution: Invalid
Status: newclosed

The log shows an issue with the compilation/installation.

You wrote that you compile yourself, try one of the mac frontends available on www.avenard.org/files/mythtv/mac

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