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Issues with segmented audio

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DTrace
2014-02-03
2014-04-14
  • DTrace

    DTrace - 2014-02-03

    Hello,
    In prior versions I was able to do the following:
    MP4Box -name 1= -name 2= -force-cat -cat video_01.h264 -cat video_02.h264 -add audo_01.aac -cat audo_02.aac final.mp4

    Where I would end up with a single video and audio track. However now it will error out or if I leave out -force-cat it will basically add the 2 audio tracks vs combining them.
    Any help would be appreciated.

     
  • Cyril Concolato

    Cyril Concolato - 2014-04-14

    Hi DTrace,

    Sorry for the late response. I just did the following check:
    - took an mp4 file containing H264 stream
    - extracted the H264 stream into video1.h264
    - duplicated video1.h264 into video2.h264
    - took an mp4 file containing aac and did the same to get audio1.aac and audio2.aac

    Then I ran:
    MP4Box -name 1= -name 2= -cat video1.h264 -cat video2.h264 -cat audio1.aac -cat audio2.aac final.mp4

    The resulting final.mp4 contains 2 tracks: 1 audio and 1 video.
    I'm using the latest SVN version.
    I did not mix add/cat as in your command line.
    Can you confirm whether or not you still have a problem with the latest version? If so, can you provide example files? I suspect your video (or audio) files don't have the same configuration and MP4Box is not able to create only one video (or audio) track.

    HTH,
    Cyril