On Wed, 19 Dec 2007 23:57:50 -0800 (PST), gnayis <>
wrote:
>
>I have a mp4 video, on my computer, it plays well, but it cann't play
>on my mobile phone..
>but other mp4 files on my phone plays well. I think my mobile only
>support h263 and mpeg4...
>but how to get the codec type in mp4 file? eg, mpeg4 or h264?
GSpot is a program used to diagnose what codecs are needed for
playback of AVIs. On its own it can't determine MPEG4 requirements,
but it has a button to use DirectShow (which underlies media player)
to find that out :
http://www.headbands.com/gspot/
Load the MP4 file into GSpot File -> Open, then in the section at the
bottom 'proposed rendering solutions and tests' click the [1] button
in the column MS A/V
If it says it can't render it, you probably don't have an MPEG4
decoder installed for *playback* - FFDShow is one available :
http://www.free-codecs.com/download/FFDShow.htm
I'm not sure if just having that installed will help WMP to convert
the file to the formats supported by the phone though - it seems to
vary by device.
How are you actually getting it onto the phone - are you using Sync in
media player, or some other way ?
>I read the iso 14496-12, but I can't find any clew.
>someone can explain it? or comment to me some articles about it.
>
>and another question, what's the different between mp41 and mp42 (the
>File Type Major Brand) ??
Oh not much, they're variants of microsofts take on MPEG4 decoders,
but they're not really much cop compared to modern versions
HTH
Cheers - Neil
------------------------------------------------
Digital Media MVP : 2004-2007
http://mvp.support.microsoft.com/mvpfaqs
Similar Threads
Linear Mode
