trying to reduce an mpg file's size ...

Discussion in 'Amateur Video Production' started by lbrtchx, Jan 12, 2009.

  1. lbrtchx

    lbrtchx Guest

    ~
    I have a large (approx. 3.4Gb) mpg file
    ~
    sh-3.1# ls -l origfl00.mpg
    -rwxr-xr-x 1 root root 3702380928 Jan 12 07:21 origfl00.mpg
    sh-3.1# ffmpeg -i origfl00.mpg
    FFmpeg version SVN-rUNKNOWN, Copyright (c) 2000-2004 Fabrice Bellard
    configuration: --enable-gpl --enable-pp --enable-pthreads --enable-
    vorbis --enable-libogg --enable-a52 --enable-dts --enable-libgsm --
    enable-dc1394 --disable-debug --enable-shared --prefix=/usr
    libavutil version: 0d.49.0.0
    libavcodec version: 0d.51.11.0
    libavformat version: 0d.50.5.0
    built on Sep 25 2006 13:00:42, gcc: 4.1.2 20060901 (prerelease)
    (Debian 4.1.1-13)
    Input #0, mpegts, from 'origfl00.mpg':
    Duration: 01:31:36.4, start: 57910.192056, bitrate: 5388 kb/s
    Stream #0.0[0x191]: Video: mpeg2video, yuv420p, 720x576, 15000 kb/s,
    25.00 fps(r)
    Stream #0.1[0x192](ger): Audio: mp2, 48000 Hz, stereo, 192 kb/s
    Stream #0.2[0x193](fra): Audio: mp2, 48000 Hz, stereo, 192 kb/s
    Must supply at least one output file
    ~
    which size I would like to reduce
    ~
    I have never done that before and I don't seem to be able to find out
    how you do that online.
    ~
    How can you reduce this file's size?
    ~
    Can you reduce the size of the video file by reducing the width and
    height of the view window?
    ~
    Can you reduce its size by reducing its resolution, even if its
    quality will be decreased?
    ~
    After reducing the size of the file I will have to split it smaller
    ones.
    ~
    What would you suggest?
    ~
    Thanks
    lbrtchx
    ~
    (rec.video.desktop)
     
    lbrtchx, Jan 12, 2009
    #1
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  2. lbrtchx

    Netmask Guest


    What do you want to do with the file ultimately?
     
    Netmask, Jan 13, 2009
    #2
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  3. lbrtchx

    lbrtchx Guest

    ~
    reduce its total length and split it in smaller parts
    ~
    if that helps I could reduce the quality and the size of the view
    window
    ~
    Since I am thinking of editing ti a bit, what is the option to use
    for gmplayer to display the navigation buttons?
    ~
    lbrtchx
     
    lbrtchx, Jan 14, 2009
    #3
  4. lbrtchx

    Netmask Guest


    What I meant was are you going to make a DVD from the file or a DivX/Xvid
    format. What is the purpose of the file. The answer to that will describe a
    solution

    Do you have an MPEG editing program like Womble or Vegas etc.
     
    Netmask, Jan 15, 2009
    #4
  5. lbrtchx

    lbrtchx Guest

    What I meant was are you going to make a DVD from the file or a DivX/Xvid format.
    ~
    Oh I see, actually, what I had in mind was editing it to ultimately
    post it on youtube, but the whole thing is too big and I also would
    like to topically split it, so that people can view just the parts
    they are interested in.
    ~
    ~
    Well, I don't, and now that I am talking about it let me ask you
    about something I have been wondering for some time.
    ~
    How could you somehow get, and if needed save, the images from the
    data feed of an MPEG file? Say you want to do some analysis of the
    images for which you need them as some sort of 2-dim graphic matrix.
    How could you get simgle images out of the MPEG file?
    ~
    Is the MPEG format a well-defined, standard one?
    ~
    Thanks
    lbrtchx
     
    lbrtchx, Jan 15, 2009
    #5
  6. lbrtchx

    Netmask Guest


    http://en.wikipedia.org/wiki/MPEG

    http://www.virtualdub.org/ can extract individual frames as bmp
     
    Netmask, Jan 15, 2009
    #6
  7. lbrtchx

    lbrtchx Guest

    ~
    From the source:
    ~
    "VirtualDub is a video capture/processing utility for 32-bit Windows
    platforms (95/98/ME/NT4/2000/XP) ..."
    ~
    ... 95/98/ME/NT4/2000/XP ... ;-)
    ~
    Let me see if I can find a Unix/Linux utility or if I can do anything
    with it
    ~
    lbrtchx
     
    lbrtchx, Jan 17, 2009
    #7
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