1.26.0 Codec question (unable to play video, lv50 codec) (1 Viewer)

doskabouter

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    Bit rusty on codecs, so try to get an answer/hint here.

    I have some old videos with the lv50 codec and mediaportal won't play them.

    Opening them in graphstudio only puts in a LAV splitter, LAV Audio decoder and Default directsound device, it doesn't add a video decoder+renderer.
    Manually adding the LAV Video decoder and renderer works and plays back ok.

    However, when opening it in mpc, it plays fine, and connecting graphstudio to it, I see it uses a different spliter (default avi splitter?) and adds a LAV Video Decoder and Renderer.

    Mediaportal codec settings is all LAV Video decoder, and using LAV Splitter.
    Is there some way to tell the LAV splitter that it's ok to add the LAV Video renderer for this codec? Manually adding a key for it in the registry didn't work...
     

    morpheus_xx

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    Did you check the LAV video codec settings? There can be some inbuilt codecs disabled. maybe also the one you need?
    1605296927880.png


    Can you post media info output of your file?
     

    doskabouter

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    they are all enabled, but iv50 isn't an entry in that list.
    Mediainfo says:
    Code:
    General
    Complete name                            : <redacted>.avi
    Format                                   : AVI
    Format/Info                              : Audio Video Interleave
    File size                                : 24.8 MiB
    Duration                                 : 1 min 50 s
    Overall bit rate                         : 1 895 kb/s
    Writing library                          : VirtualDub build 16250/release
    
    Video
    ID                                       : 0
    Format                                   : Indeo 4
    Codec ID                                 : IV50
    Codec ID/Info                            : Intel Indeo Video 5.0 Wavelet
    Duration                                 : 1 min 50 s
    Bit rate                                 : 1 800 kb/s
    Width                                    : 320 pixels
    Height                                   : 240 pixels
    Display aspect ratio                     : 4:3
    Frame rate                               : 15.000 FPS
    Bits/(Pixel*Frame)                       : 1.563
    Stream size                              : 23.6 MiB (95%)
    
    Audio
    ID                                       : 1
    Format                                   : PCM
    Format settings                          : Unsigned
    Codec ID                                 : 1
    Duration                                 : 1 min 49 s
    Bit rate mode                            : Constant
    Bit rate                                 : 88.2 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 11.024 kHz
    Bit depth                                : 8 bits
    Stream size                              : 1.16 MiB (5%)
    Alignment                                : Aligned on interleaves
    Interleave, duration                     : 67  ms (1.00 video frame)
    Interleave, preload duration             : 500  ms

    Edit:
    actually not all of them are enabled, rv12, cinepak, qpeg, msrle and v210/v410 are disabled
     

    doskabouter

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    Strange that I need new codecs, seeing that if I play it in MPC or manually build the graph in graphstudio it plays fine with LAV
     

    morpheus_xx

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    It's a try if the older codec renders correctly.
    I don't know why the video renderer does not seem to auto-connect in your case. Can you share a short example clip?
     

    morpheus_xx

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    I can confirm your results :(

    When using an automatic build of graph, the LAV splitter source is used, but no video decoder connected. Manually completing graph works.

    But when I create graph starting with "File Source (async)" and let render the output pin, the graph is constructed and playing well...
    1605301147147.png


    No idea what does make the difference
     

    doskabouter

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    Too bad, but thanks anyway.
    Hopefully someone will come up with an answer
     

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