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  1. Member
    Join Date
    Aug 2006
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    Argentina
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    I have some anime episodes and I want to cut the intro and the ending. The problem is that the intro doesn't appear until minute 5 more or less.
    I tried using Yamb but it did not cut anything.
    what can I use?

    Here's a screenshot with video features



    thanks a lot
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  2. I'm a MEGA Super Moderator Baldrick's Avatar
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    Search Comp PM
    Try avidemux.
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  3. Member
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    thank you
    I have just tried it out but in the output audio is not synchronized.
    Maybe I can demux audio and video and edit them separately with virtualdub?
    What program can I use to demux?
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  4. When avidemux asks "do you want to use that mode?" Say Yes.

    Try again, but use mark in/ mark out on key frames only

    If that doesn't work, Yamb can demux AVC/H.264 video and AAC audio streams in a MP4 container
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  5. Member
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    Thank you!
    You were right, I wasn't using the key freames
    Now the sound is synchronized

    thanks a lot!
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  6. I have the same problem as OP. I tried Avidemux (in both modes) but the output file stutters.

    I also used mkvmerge to convert to mkv and used its split function, but same problem: output file stutters.

    It's jinxed. The original mp4 file doesn't stutter at all (neither in VLC nor in my TV hardware player).
    But as soon as I cut it, the output file stutters. WHY?
    Any help much appreciated. Thank you!

    input file MEDIAINFO:
    Code:
    General 
    Complete name : F:\video\comedy\buelentlive.mp4
    Format : MPEG-4 
    Format profile : Base Media 
    Codec ID : isom 
    File size : 1.65 GiB 
    Duration : 1h 29mn 
    Overall bit rate : 2 620 Kbps 
    Writing application : Lavf52.63.0 
    
    Video 
    ID : 1 
    Format : AVC 
    Format/Info : Advanced Video Codec 
    Codec ID : avc1 
    Codec ID/Info : Advanced Video Coding 
    Duration : 1h 29mn 
    Bit rate mode : Variable 
    Bit rate : 2 452 Kbps 
    Width : 720 pixels 
    Height : 576 pixels 
    Display aspect ratio : 16:9 
    Frame rate mode : Constant 
    Frame rate : 25.000 fps 
    Standard : PAL 
    Bits/(Pixel*Frame) : 0.237 
    Stream size : 1.54 GiB (94%) 
    Tagged date : UTC 2010-08-21 12:42:09 
    
    Audio 
    ID : 2 
    Format : AAC 
    Format/Info : Advanced Audio Codec 
    Format version : Version 4 
    Format profile : LC 
    Format settings, SBR : No 
    Codec ID : 40 
    Duration : 1h 29mn 
    Bit rate mode : Variable 
    Bit rate : 165 Kbps 
    Channel(s) : 2 channels 
    Channel positions : L R 
    Sampling rate : 48.0 KHz 
    Resolution : 16 bits 
    Stream size : 106 MiB (6%) 
    Tagged date : UTC 2010-08-21 12:42:09
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  7. clarify what do you mean by "stutter" ? do you mean jerky playback ? or out of sync ?

    only at the cutsite, or everywhere in the file?

    have you tried mp4box (yamb) , or tsmuxer (wrap into transport stream) for cutting ?

    have you tried the nightly builds of avidemux ?
    http://avidemux.org/nightly/win32/
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  8. Originally Posted by poisondeathray View Post
    clarify what do you mean by "stutter" ? do you mean jerky playback ? or out of sync ?
    yes, jerky playback. It's NOT freeze frames, like when you play a high res video and CPU power is not sufficient, but the video is jerky/stuttering ... it's hard to describe visuals with words, but it looks as if playback was slightly non-linear and jumping back and forth between frames while advancing overall (e.g. frames 1,4,2,3,7,8,5,6,9,10,11,14,12,13 ...). It's just an un-educated guess.

    only at the cutsite, or everywhere in the file?
    throughout the whole video

    I just don't understand what could be the problem. Original audio and video stream is preserved, only the container changes. So the only thing which could be missing is container info as to the frame rate, etc. But I don't think this explains the stuttering playback.

    I have never experienced this kind of issue.
    Which information can I post to further diagnose the problem?
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  9. output file MEDIAINFO:

    Code:
    General 
    Complete name : F:\video\comedy\buelentlive.mkv
    Format : Matroska 
    File size : 18.2 MiB 
    Duration : 1mn 0s 
    Overall bit rate : 2 544 Kbps 
    Encoded date : UTC 2011-07-01 22:22:41 
    Writing application : mkvmerge v4.4.0 ('Die Wiederkehr') built on Oct 31 2010 21:52:48 
    Writing library : libebml v1.0.0 + libmatroska v1.0.0 
    
    Video 
    ID : 1 
    Format : AVC 
    Format/Info : Advanced Video Codec 
    Codec ID : V_MPEG4/ISO/AVC 
    Duration : 1mn 0s 
    Width : 720 pixels 
    Height : 576 pixels 
    Display aspect ratio : 16:9 
    Frame rate : 25.000 fps 
    Standard : PAL 
    
    Audio 
    ID : 2 
    Format : AAC 
    Format/Info : Advanced Audio Codec 
    Format version : Version 4 
    Format profile : LC 
    Format settings, SBR : No 
    Codec ID : A_AAC 
    Duration : 1mn 0s 
    Channel(s) : 2 channels 
    Channel positions : L R 
    Sampling rate : 48.0 KHz 
    Resolution : 16 bits
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  10. with mp4box (yamb) I was able to split the desired part of the .mp4 file (into another mp4 file). Playback of the cut mp4 file is just as fine as the original mp4 file. But when converting the mp4 output file to mkv (with mkvmerge) the video is again stuttering. Any ideas why?
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