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Thread: problem with franscoding speed

  1. #1
    Join Date
    Jan 2011
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    28

    Default problem with franscoding speed

    Hi,
    possess an extended trial mezzmo v2.2.0.0
    OS is Windows 7 proffesional 64-bit, porocesor AMD dual-core Opteron 2216 2.4 GHz, 4GB RAM. My problem is as follows ... Some HD or full HD files work great, while some do not. The problem is that when I start movie, transcoding are very slow (file 5626-mpegts_transcoding-libx264-ac3.mzt is growing with speed of 1MB/min), while some movies transcodes for only a few seconds! I would love to find a pattern to encode the entire library so that all the films work well. Here's an example (Avater is doing well, Gladiator does not work):
    Avatar ffmpeg info:
    FFmpeg version git-c3897d7, Copyright (c) 2000-2011 the FFmpeg developers
    built on Feb 28 2011 10:03:54 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/ffmpeg --extra-cflags=-U__STRICT_ANSI__ --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect
    libavutil 50. 39. 0 / 50. 39. 0
    libavcodec 52.113. 2 / 52.113. 2
    libavformat 52.102. 0 / 52.102. 0
    libavdevice 52. 2. 3 / 52. 2. 3
    libavfilter 1. 76. 0 / 1. 76. 0
    libswscale 0. 12. 0 / 0. 12. 0
    [matroska,webm @ 016bcc40] Estimating duration from bitrate, this may be inaccurate

    Seems stream 0 codec frame rate differs from container frame rate: 47.95 (5000000/104271) -> 24.00 (24/1)
    Input #0, matroska,webm, from 'E:\My_Video\Ivana_Dejan\Avatar 2009 BluRay 720p H264-3Li.mkv':
    Duration: 02:41:41.75, start: 0.000000, bitrate: 448 kb/s
    Stream #0.0(eng): Video: h264 (High), yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 23.98 fps, 24 tbr, 1k tbn, 47.95 tbc (default)
    Stream #0.1: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s (default)
    At least one output file must be specified


    ---> DB Level Info: 31

    Gladiator ffmpeg info:
    FFmpeg version git-c3897d7, Copyright (c) 2000-2011 the FFmpeg developers
    built on Feb 28 2011 10:03:54 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/ffmpeg --extra-cflags=-U__STRICT_ANSI__ --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect
    libavutil 50. 39. 0 / 50. 39. 0
    libavcodec 52.113. 2 / 52.113. 2
    libavformat 52.102. 0 / 52.102. 0
    libavdevice 52. 2. 3 / 52. 2. 3
    libavfilter 1. 76. 0 / 1. 76. 0
    libswscale 0. 12. 0 / 0. 12. 0
    [matroska,webm @ 015bcc40] Estimating duration from bitrate, this may be inaccurate

    Seems stream 1 codec frame rate differs from container frame rate: 47.95 (5000000/104271) -> 24.00 (24/1)
    Input #0, matroska,webm, from 'E:\My_Video\Ivana_Dejan\Gladiator.2009.720.mkv':
    Duration: 02:50:58.90, start: 0.000000, bitrate: 1536 kb/s
    Stream #0.0: Audio: dca (DTS), 48000 Hz, 5.1, s16, 1536 kb/s (default)
    Stream #0.1(eng): Video: h264 (High), yuv420p, 1280x544, PAR 1:1 DAR 40:17, 23.98 fps, 24 tbr, 1k tbn, 47.95 tbc (default)
    At least one output file must be specified


    ---> DB Level Info: 31

  2. #2
    Join Date
    Nov 2007
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    Default

    Hi,

    Can you please tell me which device and device profile you're using? I would guess that the movies that transcode quickly are simply remuxed (in case of Avatar it has "standard" dimensions, so I'm guessing it's remuxed, while the Gladiator may be fully recoded due to it's dimensions). Once I know the device profile I can confirm this for sure.

    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
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  3. #3
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    Default

    Hi Dennis,
    thanks for quick answer.... profile is Sony Bravia KDL device is Sony Bravia KDL 40ex500

  4. #4
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    Yes, then my guess is correct We're remuxing the standard dimensions, but because the TV has issues with non-standard dimensions (and aspect ratios), we have to pad those files and this means a full video recode. If you wish, you can remove video dimensions from the device profile, but that may mean that those files will look stretched or squeezed on your TV.

    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
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    Twitter: https://twitter.com/conceiva_mezzmo
    Web: http://www.mezzmo.com

  5. #5
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    Default

    First, how to remove video dimensions from my device profile and secondely, how to encode my video (I alredy encode every video to hardcode subtitle in) to just remux standard dimension. What is standard dimension for my device (and aspect ratio)....For purpose of encoding, I'm using MeGUI and avisynth script.
    Regards

  6. #6
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    To remove video dimensions, edit the SonyBraviaKDL.prf file (in your DeviceProfiles folder) and remove the various <dimensions> tags from the "mpegts_transcoding" container. After that save the file, restart the server and try again - this should remux the file now. If it doesn't, let me know and I'll post a command using FFmpeg (I don't know about MeGUI/avisynth, as we're not using those).

    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

  7. #7
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    Default

    Dennis,
    now work perfect.
    Regards

  8. #8
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    Great, thanks for letting me know! Does it display correctly (although with just a few pixels' difference, it'll probably be impossible to tell)?

    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

  9. #9
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    Dennis,
    almost every video I have alredy resized and croped to aspect ratio 16:9 so its immposible to me to see any difference...I really don't understand why is this default setting ? I beleve that many people have the same problem as I do...
    regards

  10. #10
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    Avatar's resolution is 1280x544 with an aspect ratio of 40:17 and not every TV can display that properly, thus the need to transcode such files to proper dimensions/aspect ratio.

    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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