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Thread: Transcoding really slow! (4 FPS)

  1. #1
    Join Date
    Jan 2012
    Posts
    15

    Question Transcoding really slow! (4 FPS)

    I have some .mkv files I am trying to view over an Arris whole home DVR player. The profile Mezzmo chose for this device (Moxi DVR) transcodes this video to mpeg2. The Arris media player says that it natively supports MPEG-1, MPEG-2, MPEG-4, H264, and WMV. So, i guess I have two questions:
    1) Why does the below file need to be transcoded since it is H264? and
    2) Why does it only transcode at 4 FPS?

    I have an Intel Q6600 quad-core 2.4GHz w/ 4 GB RAM. The CPU usage is between 60% - 70%, RAM usage is only at 25%, and disk write speed is under 1MB/s while transcoding. I would think that if one of these was the bottleneck it would be at 100% usage.

    The FFMPEG info is below:

    ffmpeg version N-40693-gc457a29 Copyright (c) 2000-2012 the FFmpeg developers
    built on May 15 2012 12:57:14 with gcc 4.6.2
    configuration: --enable-memalign-hack --arch=x86 --target-os=mingw32 --cross-prefix=i686-w64-mingw32- --enable-static --disable-shared --enable-zlib --disable-postproc --prefix=/home/peter/ffmpeg/build/gpl --enable-libmp3lame --enable-libx264 --enable-gpl --extra-libs='-lx264 -lpthread' --enable-runtime-cpudetect --extra-cflags=-I/home/peter/cc/include --extra-ldflags=-L/home/peter/cc/lib --pkg-config=pkg-config --disable-w32threads
    libavutil 51. 51.100 / 51. 51.100
    libavcodec 54. 21.101 / 54. 21.101
    libavformat 54. 5.100 / 54. 5.100
    libavdevice 53. 4.100 / 53. 4.100
    libavfilter 2. 73.100 / 2. 73.100
    libswscale 2. 1.100 / 2. 1.100
    libswresample 0. 11.100 / 0. 11.100
    Input #0, matroska,webm, from 'C:\EL Materdor.mkv':
    Metadata:
    creation_time : 2012-07-13 02:12:28
    Duration: 00:03:19.30, start: 0.000000, bitrate: 3619 kb/s
    Stream #0:0: Video: h264 (High), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 47.95 tbc (default)
    Stream #0:1(eng): Audio: aac, 48000 Hz, 5.1, s16 (default)
    At least one output file must be specified


    ---> DB Level Info: 41, 100
    ---> Frame rate: 23.98
    ---> Aspect ratio: 16:9

    Thanks for any help you can provide.

  2. #2
    Join Date
    Nov 2007
    Location
    Melbourne, Australia
    Posts
    11,632

    Default

    Please contact us at support [at] conceiva [dot] com and we'll provide you with an improved Moxi DVR device profile.

    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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