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need a clarify about codecs and formats (mpeg2,mpeg4,x264...)

Discussion in 'Other video questions' started by o-power, Jun 25, 2007.

  1. o-power

    o-power Member

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    ok, so i got a couple of questions about codecs and formats
    1) mpeg2,mpeg,mpeg4 those are formats??? they are ways that video and audio are being compressioned???
    2)x264 is an encoding for mpeg4??? so if u take an mpeg4 video and encode it with the x264 u get those new releases of: mp4,x265.mkv???
    3)mpeg4 is better then mpeg2?? and hour of mpeg4 video takes in more place than an hour of mpeg2???
    i would appreciate any of ur answers, as i am very confiused...tnx :)
     
  2. celtic_d

    celtic_d Regular member

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    1) MPEG, MPEG-2, MPEG-4, etc. are standards. MPEG = Motion Picture Expert Group. The standards define various things including audio and video compression.

    2) x264 is an MPEG-4 Part 10 video encoder. The cli encoder can output mkv, mp4 or raw files.

    3) Define better? Generally MPEG-4 Part 10 should achieve the quality of MPEG-2 at a lower bitrate. There is also MPEG-4 Part 2 (Xvid and DivX are MPEG-4 Part2) though. Still the same applies.
     

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