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Thread: FFmpeg and Windows 8.1

  1. #1

    Default FFmpeg and Windows 8.1

    Hi to All,

    After the upgrade from Windows 8 pro to Windows 8.1 pro (i have done a fresh installation of Windows 8 pro and then i have upgraded to windows 8.1 pro) i get that ffmpeg.exe (64Bit version) uses all cpu ( Near to 100%) and i get in mezzmo the alert that the video conversion is too slow (under 23 fps).
    I have installed the latest version of mezzmo available.

    Before upgrading using the same pc with windows 8 pro i did not get this behavior. In this situation i got that ffmpeg process has used "only" 60% of cpu.

    Another strange behavior is that if i stop to watch the movie (for example i stop the movie from the tablet) i get that in windows the ffmpeg.exe process is not stopped but it continues to transcode the movie . before this test I have unchecked the option to get that all the conversions in backgroud must be stopped.

    Could you please help me to understand what is changed?

    thanks for your help

    Besta regards

    ltm82

  2. #2
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,616

    Default

    Hi ltm82,

    I don't think it will will be related to Windows 8.1. It may be simply the wrong device profile assigned to your device in Mezzmo.

    Let us know a few things:

    • What device/app are your streaming to?
    • What device profile is assigned to your device? Go to the Media Devices dialog in Mezzmo to see this.
    • What is the FFmpeg information for the video that you are streaming? Right-click on the video in Mezzmo and click 'Get FFmpeg Information'.

    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

  3. #3

    Default

    Hi Paul,

    I get cpu near 100% using my Panasonic VT30 when i try to see for example "Amazing Spiderman.mkv".

    I have tried to set all the profiles for Panasonic (Model 2011) but the behavior is the same.

    In particular i saw that the transcoding action does not stop when i stop the movie. Why? It seems that ffmpeg.exe is not controlled by mezzmo service.

    Here Below you can find the info about my test file:

    ffmpeg version N-50460-g393dcbf Copyright (c) 2000-2013 the FFmpeg developers
    built on Jun 27 2013 17:20:20 with gcc 4.6.2 (GCC)
    configuration: --enable-memalign-hack --arch=x86_64 --target-os=mingw32 --cross-prefix=x86_64-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/home/peter/ffmpeg/build/gpl64 --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc64/include --extra-ldflags=-L/home/peter/cc64/lib --pkg-config=pkg-config --disable-w32threads --enable-zlib
    libavutil 52. 17.103 / 52. 17.103
    libavcodec 54. 92.100 / 54. 92.100
    libavformat 54. 63.102 / 54. 63.102
    libavdevice 54. 3.103 / 54. 3.103
    libavfilter 3. 41.100 / 3. 41.100
    libswscale 2. 2.100 / 2. 2.100
    libswresample 0. 17.102 / 0. 17.102
    [h264 @ 0000000002ef8f20] sps_id out of range
    [matroska,webm @ 000000000194dcc0] max_analyze_duration 60000000 reached at 60018292 microseconds
    [matroska,webm @ 000000000194dcc0] Could not find codec parameters for stream 3 (Subtitle: hdmv_pgs_subtitle): unspecified size
    Consider increasing the value for the 'analyzeduration' and 'probesize' options
    [matroska,webm @ 000000000194dcc0] Could not find codec parameters for stream 4 (Subtitle: hdmv_pgs_subtitle): unspecified size
    Consider increasing the value for the 'analyzeduration' and 'probesize' options
    Input #0, matroska,webm, from 'E:\Blu-Ray Disc\Amazing Spider-man\Amazing Spider-Man.mkv':
    Metadata:
    title : Amazing Spider-Man, The - 3D Blu-ray™
    creation_time : 2012-12-29 14:40:27
    Duration: 02:16:17.17, start: 0.000000, bitrate: 36466 kb/s
    Chapter #0.0: start 0.000000, end 465.923778
    Metadata:
    title : Chapter 00
    Chapter #0.1: start 465.923778, end 879.670444
    Metadata:
    title : Chapter 01
    Chapter #0.2: start 879.670444, end 1377.542822
    Metadata:
    title : Chapter 02
    Chapter #0.3: start 1377.542822, end 1978.226244
    Metadata:
    title : Chapter 03
    Chapter #0.4: start 1978.226244, end 2485.065911
    Metadata:
    title : Chapter 04
    Chapter #0.5: start 2485.065911, end 2922.502911
    Metadata:
    title : Chapter 05
    Chapter #0.6: start 2922.502911, end 3310.932622
    Metadata:
    title : Chapter 06
    Chapter #0.7: start 3310.932622, end 3797.293489
    Metadata:
    title : Chapter 07
    Chapter #0.8: start 3797.293489, end 4349.011333
    Metadata:
    title : Chapter 08
    Chapter #0.9: start 4349.011333, end 4671.750400
    Metadata:
    title : Chapter 09
    Chapter #0.10: start 4671.750400, end 5078.948867
    Metadata:
    title : Chapter 10
    Chapter #0.11: start 5078.948867, end 5644.555578
    Metadata:
    title : Chapter 11
    Chapter #0.12: start 5644.555578, end 6179.548356
    Metadata:
    title : Chapter 12
    Chapter #0.13: start 6179.548356, end 6736.354622
    Metadata:
    title : Chapter 13
    Chapter #0.14: start 6736.354622, end 7252.912333
    Metadata:
    title : Chapter 14
    Chapter #0.15: start 7252.912333, end 8177.169000
    Metadata:
    title : Chapter 15
    Stream #0:0(eng): Video: h264 (High), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc
    Stream #0:1(ita): Audio: dts (DTS-HD MA), 48000 Hz, 5.1(side), fltp, 1536 kb/s (default)
    Metadata:
    title : Lossless
    Stream #0:2(ita): Audio: dts (DTS), 48000 Hz, 5.1(side), fltp, 1536 kb/s
    Metadata:
    title : 3/2+1
    Stream #0:3(ita): Subtitle: hdmv_pgs_subtitle (default)
    Stream #0:4(ita): Subtitle: hdmv_pgs_subtitle
    Stream #0:5(ita): Subtitle: hdmv_pgs_subtitle
    At least one output file must be specified

    <MEZZMO>: Child process ended with code: 109, ExitCode=1


    ---> DB Level Info: 41, 100
    ---> Frame rate: 23,98
    ---> Aspect ratio: 16:9 PAR=1:1

  4. #4
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,616

    Default

    Thanks for the further information. The reason for high CPU usage is the original video is being transcoded so it can be played on your Viera TV. Mezzmo uses 'ffmpeg.exe' to transcode audio and video files, and the amount of CPU that it uses does depend on the characteristics of the file being transcoded. In your case, your Blu-ray rip has a very high video bitrate (36Mpbs) and 1080p resolution so transcoding is working very hard. This will result in transcoding on-the-fly being too slow for real time streaming & playback on your devices. There are two workarounds for this: (i) you can pre-transcode your video before streaming it and you will have smooth playback (see this FAQ to pre-transcode a video - http://forum.conceiva.com/showthread...nscoding-Files), or (ii) if you are ripping your Blu-ray discs, then you can lower the video bitrate in your ripping software tool to (say) 10Mbps and that will provide much faster transcoding on-the-fly (and you should not notice any degradation in onscreen video quality).

    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

  5. #5

    Default

    Hi Paul,

    Thanks for you information.

    Do you have any idea about my second issue. When I stop the movie from my tv i see that ffmpeg.exe does not stop in my pc.
    I suppose that if i stop the movie also ffmpeg have to stop trascoding.


    I unchecked the option to finish tanscoding in background but it seems that it does not work. I have to stop manually everytime the transcoding.

    Could you please help me?

    thanks fot your help

    ltm82

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

    Default

    Mezzmo does not remove the ffmpeg.exe processes immediately. It waits for 2 minutes of non-streaming activity and then kills them. So you will see the ffmpeg.exe processes continue for a few minutes, but they should eventually be killed.

    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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