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Thread: Video scrambled when using mplayer/Xine/VLC

  1. #1
    Join Date
    Apr 2007
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    780

    Video scrambled when using mplayer/Xine/VLC

    I have been copying some recorded TV from my old myth box, onto my new one, via NFS. (Just copying the mpg files to a spare directory, not trying to integrate them into the recorded programs on the box.)

    I copied a few, and played them using vlc on the new box. I deleted some and kept some to watch later. I then set it to copy all the rest of them (300GB or more) and went to bed.

    This morning I tried to play some of the new ones, and vlc (and mplayer and xine) just display scrambled video as they play. I even tried one of the one's from last night that played previously - same result.

    Worse still, I went back into mythfrontend and it showed scrambled video on live TV, and showed a pink screen playing a recorded show - and it locked up.

    I rebooted the box, and mythfrontend was back to working properly. However, trying to play the copied mpg files in mplayer/vlc/xine again shows scrambled video, and his stuffs mythfrontend again. I have repeated this a few times. I even rebooted, test myth was ok, then tried to play one of the file from last night that was good, first. No result - still scrambled video.

    This has me really worried. Has anyone ANY ideas what is going on?

  2. #2
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    Apr 2007
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    780

    Re: Video scrambled when using mplayer/Xine/VLC

    Just wanted to add, running mplayer from the command line, there was one error before it displayed the scrambled video

    "selected video_out device is incompatible with this codec"

    maybe that's a clue?

  3. #3
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    Ubuntu Development Release

    Re: Video scrambled when using mplayer/Xine/VLC

    Do you have proprietary drivers installed? If not, please do install them (assuming they are available).

    If you do have them installed, I suspect that you don't have the video overlay enabled.

  4. #4
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    Re: Video scrambled when using mplayer/Xine/VLC

    Quote Originally Posted by superm1 View Post
    Do you have proprietary drivers installed? If not, please do install them (assuming they are available).

    If you do have them installed, I suspect that you don't have the video overlay enabled.

    Thanks for the response, as I said, this is worrying me a bit.

    Yes, I'm using the proprietary drivers (nvidia). So, somehow this video overlay has become disabled?

    How can I check and/or turn it back on? The only things I think I have changed since mplayer/vlc worked last might be a screen res change and I think I changed the deinterlacing in myth playback (to linear blend).

  5. #5
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    Ubuntu Intrepid Ibex (testing)

    Re: Video scrambled when using mplayer/Xine/VLC

    Do you have the win32codecs installed?
    Constant development is the law of life, and a man who always tries to maintain his dogmas in order to appear consistent drives himself into a false position - Mahatma Gandhi

  6. #6
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    Re: Video scrambled when using mplayer/Xine/VLC

    Quote Originally Posted by hanzomon4 View Post
    Do you have the win32codecs installed?
    Yes I do, and I did wonder if they might have become corrupted, at least at first, but these video mpgs that won't play are direct recorded from DVB-T cards (streamed from the TV station). They don't use w32 codecs do they?

  7. #7
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    Re: Video scrambled when using mplayer/Xine/VLC

    I have captured the full output from mplayer. This is still happening even after disabling and reenabling the restricted driver (with consequent reboots). The driver certainly becomes unstable after trying this, eventually locking mythbuntu up. Is it possible my cheap Geforce 7200 is flaky, or that the current driver version is flaky?

    Code:
    $ mplayer wire.mpg
    MPlayer 1.0rc2-4.1.3 (C) 2000-2007 MPlayer Team
    CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 4200+ (Family: 15, Model: 
    107, Stepping: 1)
    CPUflags:  MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
    Compiled with runtime CPU detection.
    mplayer: could not connect to socket
    mplayer: No such file or directory
    Failed to open LIRC support. You will not be able to use your remote 
    control.
    
    Playing wire.mpg.
    TS file format detected.
    VIDEO MPEG2(pid=512) AUDIO MPA(pid=650) NO SUBS (yet)!  PROGRAM N. 1
    VIDEO:  MPEG2  720x576  (aspect 3)  25.000 fps  15000.0 kbps (1875.0 
    kbyte/s)
    xscreensaver_disable: Could not find XScreenSaver window.
    GNOME screensaver disabled
    ==========================================================================
    Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
    VDec: vo config request - 720 x 576 (preferred colorspace: Mpeg PES)
    Could not find matching colorspace - retrying with -vf scale...
    Opening video filter: [scale]
    The selected video_out device is incompatible with this codec.
    Try appending the scale filter to your filter list,
    e.g. -vf spp,scale instead of -vf spp.
    VDecoder init failed :(
    Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder 
    libmpeg2-v0.4.0b
    Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
    ==========================================================================
    ==========================================================================
    Forced audio codec: mad
    Opening audio decoder: [libmad] libmad mpeg audio decoder
    AUDIO: 48000 Hz, 2 ch, s16le, 256.0 kbit/16.67% (ratio: 32000->192000)
    Selected audio codec: [mad] afm: libmad (libMAD MPEG layer 1-2-3)
    ==========================================================================
    AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample)
    Starting playback...
    VDec: vo config request - 720 x 576 (preferred colorspace: Planar YV12)
    VDec: using Planar YV12 as output csp (no 0)
    Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
    VO: [xv] 720x576 => 1024x576 Planar YV12 
    gnome_screensaver_control().009 ct: -0.168 100/100  7%  1%  2.6% 0 0

  8. #8
    Join Date
    Jun 2007
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    Re: Video scrambled when using mplayer/Xine/VLC

    Do you mean by scrambled that it just shows a lot of colours?

  9. #9
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    Apr 2007
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    780

    Re: Video scrambled when using mplayer/Xine/VLC

    Quote Originally Posted by axelsvag View Post
    Do you mean by scrambled that it just shows a lot of colours?
    Yes. Sort of like what we used to call "snow" on the TV when it was off station, but in colour - lot's of colours, but a lot of green, all in small semi random pixels, or groups of pixels.

  10. #10
    Join Date
    Jun 2007
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    303

    Re: Video scrambled when using mplayer/Xine/VLC

    I have the same problem. I have tried to sort the problem out but have not succeded. Many seems to have the same illness in the system. Some people mean that it is caused but bad nvidia software. And it does not seems to be solved the the new beta nvidia. I have seen that some believe that the problem get solved if you downgrade the nvidia driver and yet some don´t think it will work. I use a different but awkvard method. I have to shut down the frontend and log out and log in from the desktop. Then the mythtv interface is back. After that you have to shut the frontend down without starting any mythtv application. After that at least I can play files from the desktop interface without any scrambling. But.... when you start the frontend again the picture in mythtv will have the same scrambling so you have to log off and log on the desktop again to be able to make the mythtv to work. I hope somebody soon will find the bug that causing this problem.

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