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Thread: Transcoding issue with WMA Lossless (0x0163)

  1. #1
    Join Date
    Jan 2011
    Posts
    2

    Default Transcoding issue with WMA Lossless (0x0163)

    Hi,

    I'm running the trial version of Mezzmo and have run in to a problem with transcoding WMA files that use Microsoft's WMA Lossless codec (0x0163). At least I think that is the problem. All my audio files are WMA files, however some are use the WMA Pro codec (0x0162) and the rest WMA Lossless (0x0163). The WMA Pro ones seem to transcode well...but the others don't. I've compared the output from the "get FFMPEG info" button...and can see that max_analyze_duration has been reached for the Lossless files.

    I'm streaming audio files from a Windows 7 PC to a Samsung series 6 TV, via an Android tablet (Witstech A81e) using the 2Play application. Amazingly, it seems to work well...except for the lossless files. I've got around 9000 of them...so don't really want to convert them.

    Is the problem due to the max_analyze_duration issue in FFmpeg...or maybe WMA lossless isn't supported?

    Thanks,

    Bruce.

  2. #2
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,647

    Default

    Hi Bruce,

    Can you please post FFmpeg information on one of those files?

    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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  3. #3
    Join Date
    Jan 2011
    Posts
    2

    Default Transcoding issue with WMA Lossless - sample output from ffmpeg

    Here you go....

    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
    [asf @ 0033cb30] max_analyze_duration reached
    Input #0, asf, from 'C:\Users\Bruce\Music\Leontyne Price\Leontyne Price (The Prima Donna Collection) Disc 3\08 Tu n'es pas beau - La Périchole.wma':
    Metadata:
    title : La Périchole, operetta: Act III: Tu n'es pas beau
    artist : Jacques Offenbach
    copyright :
    comment :
    WM/Lyrics :
    WM/MediaPrimaryClassID: {D1607DBC-E323-4BE2-86A1-48A42A28441E}
    WMFSDKVersion : 11.0.6001.7001
    WMFSDKNeeded : 0.0.0.0000
    IsVBR : 1
    WM/Year : 1992
    WM/EncodingTime : 1844674
    WM/UniqueFileIdentifier: AMGa_id=W 11960;AMGp_id=Q 7789;AMGt_id=W 11960 3 43
    WM/Period : Romantic (1820-1869)
    composer : Offenbach
    publisher : BMG
    genre : Classical
    album : Leontyne Price (The Prima Donna Collection) Disc 3
    album_artist : Leontyne Price
    WM/Provider : AMGClassical
    WM/ProviderStyle: Vocal
    PeakValue : 326
    AverageLevel : 473
    track : 8
    Duration: 00:03:30.26, start: 3.000000, bitrate: 542 kb/s
    Stream #0.0(eng): Audio: c[1][0][0] / 0x0163, 44100 Hz, 2 channels, 1152 kb/s
    At least one output file must be specified


    ---> DB Level Info: 0

  4. #4
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,647

    Default

    Thanks for the info - FFmpeg does not recognize that audio stream, so we cannot transcode the file at the moment. We could deliver it natively if the device supported WMA Lossless, but I don't think that Samsung devices support it.

    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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