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Thread: first start transcode, second start no transcode of MKV file?

  1. #1

    Default first start transcode, second start no transcode of MKV file?

    Hello,

    I use Mezzmo with my Sony KDL 32-EX500. I stream from PC (phenom II X2 550, 4GB), via wired ethernet.
    This happens when I play MKV (MP4, AAC 2 ch. stereo):
    First time I start playing file; cpu usage 45-50% (Mezzmo transcodes I presume), stop play after for example 20 seconds. CPU usage still 45-50% for about 45 seconds, then goes down to 0%.
    When I start the file play again, cpu usage 1-2% for rest of the movie.

    When playing MKV (MP4, 5.1):
    Always CPU usage 45-50%.

    I would like Mezzmo to direct play MKV (MP4, AAC 2 ch. stereo) with low cpu usage.

    I've tried several MKV's, all with the same result.

    Thanx,
    Dennis

  2. #2
    Join Date
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    Melbourne, Australia
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    Default

    Do you have background transcoding turned on or off? If it's on, it should continue transcoding in the background. Can you please post FFmpeg information on one of those files so that I could try to find a similar here and test it?

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  3. #3

    Default

    The above mentioned situation is with transcoding turned on and background transcoding turned off.
    When transcoding is turned off, only my MPEG-2 movies show up when searching in Mezzmo library on TV. (library content: MPEG-2, AVI, MP4, DIVX, MKV file format)

    I think the time between first stop and second start (1 min.) is not enough to transcode complete movie (to result in 2% cpu usage for rest of the movie).

    Also with MP4 file:


    FFmpeg version SVN-r26071, Copyright (c) 2000-2010 the FFmpeg developers
    built on Dec 22 2010 10:30:32 with gcc 4.4.2
    configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-mingw32- --enable-static --disable-shared --enable-zlib --disable-ffprobe --disable-ffplay --prefix=/media/windows-share/ffmpeg --extra-cflags=-U__STRICT_ANSI__ --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect
    libavutil 50.35. 0 / 50.35. 0
    libavcore 0.16. 0 / 0.16. 0
    libavcodec 52.100. 0 / 52.100. 0
    libavformat 52.88. 0 / 52.88. 0
    libavdevice 52. 2. 2 / 52. 2. 2
    libavfilter 1.69. 0 / 1.69. 0
    libswscale 0.12. 0 / 0.12. 0
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'E:\MijnVideos\Movies\101 DALMATIERS animation\101 Dalmatiers animation.mp4':
    Metadata:
    major_brand : isom
    minor_version : 512
    compatible_brands: isomiso2avc1mp41
    creation_time :
    title : 101 Dalmatiers
    album : 101_DALMATI_RS
    date : 2011
    encoder : Lavf52.33.0
    Duration: 01:16:14.95, start: 0.000000, bitrate: 2251 kb/s
    Stream #0.0(und): Video: h264, yuv420p, 720x542, 2121 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
    Metadata:
    creation_time :
    Stream #0.1(und): Audio: aac, 48000 Hz, stereo, s16, 127 kb/s
    Metadata:
    creation_time :
    At least one output file must be specified
    Last edited by djvdgalien; 01-15-2011 at 05:56 AM.

  4. #4
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    Default

    It's possible to transcode a full movie in under a minute, if it's simply remuxed (the video stream is copied). We'll need to see the logs to know what's happening for sure, so can you please turn on logging (see this thread: http://forum.conceiva.com/showthread...nostic-logging) then play it again and once it stops, stop the server and send the logs to support (at) conceiva (dot) com

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
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  5. #5

    Default

    Hi Dennis,

    I've seen the logs myselves and indeed it looks like the file is completely remuxed in about 1 minute, even when transcoding in background is turned off.
    But then I have another question: Can I rename / re-use the transcoded/remuxed file (*.mzt) in the temporary mezzmo directory for transcoded files?
    If so then Mezzmo doesn't have to remux/transcode this movie again when streaming to my TV.
    What file extension should I use when renaming this *.mzt file?

    Thanx,
    Dennis
    Last edited by djvdgalien; 01-20-2011 at 07:50 AM.

  6. #6
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
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    11,616

    Default

    Hi Dennis,

    If you rename the .mzt file, then Mezzmo will not find it, but if you leave it there as-is, then Mezzmo will use that next time you try to play that movie. The temporary transcoded files sit there until a folder limit is hit (configured via the Transcoding Settings dialog) - then older ones will be deleted automatically.

    Mezzmo Android: Install it on your tablet, smartphone, Android TV or Amazon Fire to browse and stream files from your Mezzmo library to all your devices. Full details at http://www.conceiva.com/products/mez...mo_android.asp
    Mezzmo for Kodi Add-on: Install it into Kodi to stream files from your Mezzmo library directly in Kodi. Full details at http://www.mezzmo.com/wiki/doku.php?...odi_user_guide
    Mezzmo for Roku App: Install it onto your Roku to stream files from your Mezzmo library. Full details at http://www.mezzmo.com/wiki/doku.php?...oku_user_guide
    Wiki: User Guides & Reference Manual at http://www.mezzmo.com/wiki
    Facebook: http://www.facebook.com/Mezzmo.DLNA.Server
    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

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