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Thread: Transcoding video problem? DSM-320 drops audio and freezes momentarily.

  1. #1

    Default Transcoding video problem? DSM-320 drops audio and freezes momentarily.

    I just purchased and registered Ver. 2.1.11.0 and I'm running it on a new desktop running Windows 7. I also installed a trial version on an old (ca. 1999) desktop running Windows XP, just to check for consistency in the problem. I'm using a D-Link DSM-320 as a player.

    When I play most of my video files of just about any type (MPEG-2, MPEG-4 Xvid, etc.), the audio drops out momentarily and the video stutters, as if one or the other is out of synch and trying to catch up. This happens regardless of bitrate, image size, and level of compression. I've reconverted several files using a variety of settings.

    This happens on both computers (old and new) and is consistent with the identical video files. However, some other video files seem to play OK. When I compare the files that have problems with the ones that don't, I can see only a difference or two in the encoding. For example, the file information may differ only in the frame-rate (30 fps vs. 29.97). Otherwise, the encoding appears identical.

    I also have TwonkyMedia Server installed on both machines. Again, the video files are identical to those I'm trying to play with Mezzmo, but Twonky plays them just fine on both machines (Win7 and WINXP), with no stuttering.

    Mezzmo will transcode more file formats than Twonky and I prefer the interface and set-up on Mezzmo, but the problems playing videos is an issue.

    Any suggestions? Could it be an ffmpeg problem, or a device configuration problem? I can provide the encoding information on the files, if that would help.

    Thank you!

  2. #2

    Default

    Here's the file properties. I'll post the ffmpeg profile shortly.

    General
    Complete name : X:\Music Videos\Test Videos\TTOTDG (VDub 640x480 Deblock).avi
    Format : AVI
    Format/Info : Audio Video Interleave
    File size : 42.3 MiB
    Duration : 10mn 0s
    Overall bit rate : 591 Kbps
    Writing library : VirtualDub build 32817/release

    Video
    ID : 0
    Format : MPEG-4 Visual
    Format profile : Advanced Simple@L5
    Format settings, BVOP : Yes
    Format settings, QPel : No
    Format settings, GMC : No warppoints
    Format settings, Matrix : Default (H.263)
    Muxing mode : Packed bitstream
    Codec ID : XVID
    Codec ID/Hint : XviD
    Duration : 10mn 0s
    Bit rate : 451 Kbps
    Width : 640 pixels
    Height : 480 pixels
    Display aspect ratio : 4:3
    Frame rate : 29.970 fps
    Resolution : 8 bits
    Colorimetry : 4:2:0
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.049
    Stream size : 32.3 MiB (76%)
    Writing library : XviD 1.2.1 (UTC 2008-12-04)

    Audio
    ID : 1
    Format : MPEG Audio
    Format version : Version 1
    Format profile : Layer 3
    Format_Settings_Mode : Joint stereo
    Format_Settings_ModeExtension : MS Stereo
    Codec ID : 55
    Codec ID/Hint : MP3
    Duration : 10mn 0s
    Bit rate mode : Constant
    Bit rate : 128 Kbps
    Channel(s) : 2 channels
    Sampling rate : 48.0 KHz
    Stream size : 9.16 MiB (22%)
    Alignment : Split accross interleaves
    Interleave, duration : 33 ms (1.00 video frame)
    Interleave, preload duration : 500 ms
    Writing library : LAME3.98.3

  3. #3
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,616

    Default

    Thanks for the file info - would it be possible for you to send us one of those files (through a service like www.megaupload.com or similar) so that we could test them here on our DSM320?

    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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  4. #4

    Default

    Sure, Dennis. I'll probably edit one down to be a reasonable size and then post it to one of my websites and send you a download link.

    Might be a couple days, as I'll have to check it to make sure it exhibits the same problems even when it's smaller. The problem shows up as soon as I start to play it, so I think just a minute or two of video would be adequate.

  5. #5
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,616

    Default

    Thanks - any size that you can reproduce the problem with will do.

    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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