[mythtv-users] Poor quality jerky video playback
rooneyo at iinet.net.au
Sun Feb 27 10:06:13 UTC 2011
> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
> bounces at mythtv.org] On Behalf Of John Pilkington
> Sent: Saturday, 26 February 2011 4:38 AM
> To: mythtv-users at mythtv.org
> Subject: Re: [mythtv-users] Poor quality jerky video playback
> On 25/02/11 14:32, Anthony Rooney wrote:
> > Hi
> > Having got myth video to be able to read other network drive locations
> > I am disappointed to see the very poor quality playback across the
> > board with all video formats. I have copied some of the video files
> > locally to the Mythbox to rule out network latency issues however the
> > quality is still very poor. Playing DVD compilations in Myth Video
> > does not allow you to just play from the parent directory level and
> > read the ifo file and play back the VOB in the correct order like so
> > many other DVD players . You seem to have to play each individual VOB
> > files which is very useless even through it can play the content if is
> > not presented as a logic package. It does not seem to honour the menu
> > structures as you wouold expect. I'm sure here is a step I am missing
> > that someone can help with. How do you get rid of all the questin marks
> the files?
> I think some people convert their dvds to .iso format, but I have done
> little watching of commercial dvds so that may not be the best route.
> preserve menus. Or get the content with a ripper.
> > I noticed playback of videos is particularly bad with files captured
> > with my HD Camcorder VIXIA HFS 21 which saves files natively to a .mts
> > format at whatever resolution you chose.
> There's a very recent thread relating to playback of camera files. it may
> you ought to be able to find it in the gossamer-threads searchable
> don't know if you've found that. keyword for that thread would be m2ts.
> Myth Video is very jerky with
> > the playback regardless to the capture resolution momentarily stalling
> > every 6 seconds and VLC player is even worse. Movie Player make the
> > best effort playing back footage however none are as smooth as Windows
> > media player or PowerDVD, Real Player or Nero Media Hub in the Windows
> > platform. I cannot imagine that playing back video files in Ubuntu
> > should have such a performance difference so I was looking for some
> > advice about what codecs I need to add to my Linux machine so it can
> > play back video clips at the same quality as Windows or a mac with
> > equivalent hardware?
> > I have found that flip videos that are downloaded in Ubuntu are
> > unrecognised by Movie player an myth video by default but are played
> > by VLC without a problem. If I use video redo to edit the MP4 clips
> > and resave in video redo as MP4 (H.264) movie player will play them
> > All of the windows applications play the flip video fine however
> > ubuntu's support for video is flaky. It plays the files without
> > reporting an error but very badly making them unwatchable.
> > What do I need to do to narrow the performance gap so I can use my
> > Myth box as a media centre? Do I need to remux them at different
> > frames per second to remove the jerky playback the so degrades the
> > quality? How can some many windows apps play the files well by default
> > whereas Linux apps seem to need fine tuning?
> Probably because it's been someone's job to do the fine - or at least some
> tuning to give some Windows compatibility for all the devices/file types
> you're hoping to use. Now you get the opportunity to do that - if someone
> else hasn't beaten you to it and shared his/her results
> > What setting should I look at?
> > My version of Movie Player is: 2.30.2 - G Streamer 0.10.28
> > VLC is gcc version 4.4.3-4 ubuntu5
> > Many Thanks
> > Anthony
> John P
Thanks for your suggestions John, most appreciated. I will check out the
threads you suggested and see where that takes me.
More information about the mythtv-users