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MCEBuddy

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Bad MP4 conversions, analysis and a possible workaround

Last post 10-20-2008 18:02 by Gorodin. 19 replies.
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  • 08-26-2008 21:03 In reply to

    Re: Bad MP4 conversions, analysis and a possible workaround

    Stark:

    Glad you're back and excited about the next release!

    I will report back on the latest profile in more detail when I have a moment. A quick notice was that encode times are significantly longer but guessing this is due to the added goodies in this profile.

    I am in the UK so unfortunately no help for the NTSC comments.

    Yes, this is about as far as I can push the quality without breaking the envelope or bumping up the bitrate.  trellis=2 is the only one remaining but that REALLY adds to the time.  The others are right on the threashold of diminishing returns.  Out of interest, what is the time difference between the two?

  • 09-28-2008 14:39 In reply to

    • foyle
    • Top 500 Contributor
    • Joined on 09-28-2008

    Re: Bad MP4 conversions, analysis and a possible workaround

     Hi,

     I hope this isnt a dumb question but where do I find mencoder.conf? I would like to try the posted fix. My H.264 files do not have any sound on the linksys extender.

     

    thanks

  • 09-28-2008 19:31 In reply to

    Re: Bad MP4 conversions, analysis and a possible workaround

    C:\Program Files\Tyrell\MCEBuddy\mplayer

    And if you're using Vista, make sure you're logged on as administrator when you change it or you will think you're modified the file but in fact you haven't.

  • 09-29-2008 18:07 In reply to

    • foyle
    • Top 500 Contributor
    • Joined on 09-28-2008

    Re: Bad MP4 conversions, analysis and a possible workaround

     Thanks,

     I am trying to find a conversion that works with the PS3, Ive tried the recommended ones, they dont work. Any idea's?

  • 10-20-2008 18:02 In reply to

    Re: Bad MP4 conversions, analysis and a possible workaround

    Guys, if you want you can try the new profile I'm currently testing for MCEBuddy 2.0

    [x264-New]
    profile-desc="H.264    New"
    vf=pullup,softskip,pp=fd,scale=:-10,hqdn3d,harddup
    lavdopts=threads=2
    ovc=x264=yes
    x264encopts=threads=auto:frameref=6:subq=7:qcomp=0.8:me=umh:me_range=24:trellis=2:bframes=0:nocabac=yes:partitions=p8x8,i4x4:level_idc=30:direct_pred=auto:deblock=-1,0:bitrate=1536:vbv_maxrate=1536:vbv_bufsize=1536
    oac=faac=yes
    faacopts=br=128:raw=yes:mpeg=4:tns=yes:object=2
    af=volnorm=2
    of=lavf=yes
    lavfopts=format=mp4
    #FileExtension=mp4
    #IPod=yes

    No sync issues and it is iTunes, iPod compatible and generally clean and safe from an MP4 perspective.  Also handles high motion a lot better.  Might be a little heavy on the CPU so let me know how you go if you use it.  MP4 is likely to become THE container for H.264 with MCEBuddy 2.0 as it doesn't have the sync issues that AVI/H2.64 has.  Working with a lot of other systems and devices is also a bonus.

    Jens comments are generally correct. To produce a viable MP4 from a mencoder transcode you need a remux (see Jens ffmpeg example).  MCEBuddy has this function, this is what #Ipod=yes does.  I'll probably rename it to #mp4remux=yes or something in MCEBuddy 2.0.

    Phredeaux

    Does this work in 1.0.8, or just in the 2.0 beta?

    I am hoping that this will fix the issue that I am having too.

    I am using this to convert to iPhone.

    Some files work great.

    Some files will not xfer to the iphone (not a valid format, or somesuch). I suspect it may be a difference in the original signal (?) as there *may* be a correlation with what channel the signal is from.

    Some files are completely munged with bad audio sync, but that seems to be related to a bad/noisy signal with a lot of dropped frames.

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