One mpeg contained different video

Discussion in 'Other video questions' started by Admango, Aug 24, 2010.

  1. Admango

    Admango Member

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    I have a mpg file that is 15s in length.
    Here is the basic information of the mpg.

    Input #0, mpeg, from 'C:\tv.mpg':
    Duration: 00:00:15.2, start: 0.440000, bitrate: 1369 kb/s
    Stream #0.0[0x1e0]: Video: mpeg1video, yuv420p, 352x288 [PAR 1:1 DAR 11:9],1150 kb/s, 25.00 tb(r)
    Stream #0.1[0x1c0]: Audio: mp2, 44100 Hz, stereo, 224 kb/s

    The mpg is a TV advertisment, however during 5-6s and 12-15s, there are video from a different clip.
    The video size reported by MediaPlayerClassic changed from 352x288 to 384x288 when it plays to 5-6s / 12-15s.

    In my understanding, if I encode a clip, the whole clip would be in the same video size.
    So, how could this be happening?
     
  2. davexnet

    davexnet Active member

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    Open the file in Virtualdub and drag it to the spot where it changes.
    Do you see a change in the size in Virtualdub ?

    This program is useful for problems like this because it ignores any aspect ratio info within
    the file and just displays the actual pixel resolution.
     

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