Opened 9 years ago

Closed 8 months ago

#10181 closed Bug Report - General (Abandoned)

Video playback chunky for certain video files.

Reported by: Greg G. <spikeygg@…> Owned by:
Priority: minor Milestone: unknown
Component: MythTV - Video Playback Version: Master Head
Severity: medium Keywords:
Cc: Ticket locked: no


I have several xvid files that don't play correctly in myth (using internal player). They do, however, play fine with mplayer. The problem is difficult to describe. It's like a frame gets stuck on the screen and when there is movement, the pixels which are supposed to move in the frame do but they are still the color of the stuck frame. Eventually the frame will update and refresh but it gets stuck again shortly. That probably doesn't make much sense so I created these youtube videos to help with the description:


I have another machine that is using VDPAU and it doesn't have a problem with the playback of these same videos which is strange. It makes me think there is a hardware specific issue going on - but for whatever reason mplayer works fine with VDPAU on the problem system.

Attachments (1)

Playaback_logfile_of_broken_video_stream.log (46.2 KB) - added by Greg G. <spikeygg@…> 9 years ago.
Playback of broken video streams.

Download all attachments as: .zip

Change History (10)

comment:1 Changed 9 years ago by Raymond Wagner

What video card and driver revision are you using?

comment:2 Changed 9 years ago by robertm

Status: newinfoneeded_new

Also, please add the required version information and logging info, as requested in the TicketHowto?.

Last edited 9 years ago by robertm (previous) (diff)

comment:3 Changed 9 years ago by Greg G. <spikeygg@…>

Oops, sorry forgot that. I'm using a ZOTAC ZT-40601-20L GeForce? GT 430 (Fermi) Zone Edition 1GB 128-bit DDR3 PCI Express 2.0 x16 HDCP Ready Video Card with driver version 285.05.09

Changed 9 years ago by Greg G. <spikeygg@…>

Playback of broken video streams.

comment:4 Changed 9 years ago by Greg G. <spikeygg@…>

Apologies, I had missed the request for version info as well as logging info. I am currently using version v0.25pre-3767-gff6487b which I compiled from git head on November 19th. The log I just attatched was generated using "-v playback", please let me know if you need some other type of log. Reviewing the log, it doesn't appear that myth is aware of the playback problems. There are no messages that line up with playback issues. As I generated the log I played the sections of both videos that I posted in the original ticket. In fact, every time I play these "broken" videos the pixel pushing that occurs is exactly the same.

comment:5 Changed 9 years ago by markk

Owner: markk deleted

comment:6 Changed 9 years ago by stuartm

Status: infoneeded_newnew

comment:7 Changed 8 years ago by Greg G. <spikeygg@…>

Just wanted to mention that this problem still persists on v0.26-rc2-34-g15a2839-dirty which I updated to on Sep 23 2012. I have upgraded most of the hardware on this machine since opening this ticket (early Aug 2012). Now running Ubuntu OS on an Intel server processor and using the same ZOTAC GT 430. No problems playing these files with mplayer nor vlc but myth internal player has issues (see the videos posted on original ticket).

comment:8 Changed 8 years ago by Kenni Lund [kenni a kelu dot dk]

Ref. #11115.

comment:9 Changed 8 months ago by Mark Kendall

Resolution: Abandoned
Status: newclosed

This ticket is now extremely old, VDPAU support has been re-written and there have been many changes to decoding and playback, both in FFmpeg and MythTV.

I cannot reproduce this issue with any of the multiple test files that I use using master/v31- so I am assuming this is fixed.

If it is still a problem, please open a new ticket with a short sample.

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