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  1. I downloaded a video that has three files, video and audio and I am not sure what the last one is. How do I join the audio and video. the each play separately in VLC

    As far as i can determine they are DASH streams. This is the media info.

    AUDIO
    ______
    General
    Complete name : C:\Users\youtube-dl\myfilm.m4a
    Format : iso6
    Codec ID : iso6 (iso6/dash)
    File size : 53.5 MiB
    Duration : 58 min 49 s
    Overall bit rate mode : Variable
    Overall bit rate : 127 kb/s

    Audio
    ID : 1
    Format : AAC
    Format/Info : Advanced Audio Codec
    Format profile : LC
    Codec ID : 40
    Duration : 58 min 49 s
    Bit rate mode : Variable
    Bit rate : 128 kb/s
    Maximum bit rate : 133 kb/s
    Channel(s) : 2 channels
    Channel positions : Front: L R
    Sampling rate : 48.0 kHz
    Frame rate : 46.875 FPS (1024 spf)
    Compression mode : Lossy
    Stream size : 52.8 MiB (99%)
    Language : English

    __________________________________________________ ________________________

    VIDEO
    _______
    General
    Complete name : C:\Users\youtube-dl\MYFILM.mp4
    Format : iso6
    Codec ID : iso6 (iso6/dash)
    File size : 648 MiB
    Duration : 58 min 50 s
    Overall bit rate : 1 540 kb/s

    Video
    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format profile : High@L3.1
    Format settings, CABAC : Yes
    Format settings, ReFrames : 4 frames
    Codec ID : avc3
    Codec ID/Info : Advanced Video Coding
    Duration : 58 min 50 s
    Bit rate : 1 536 kb/s
    Maximum bit rate : 6 393 kb/s
    Width : 704 pixels
    Height : 396 pixels
    Display aspect ratio : 16:9
    Frame rate mode : Constant
    Frame rate : 50.000 FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scan type : Progressive
    Bits/(Pixel*Frame) : 0.110
    Stream size : 646 MiB (100%)
    Color range : Limited
    Color primaries : BT.709
    Transfer characteristics : BT.709
    Matrix coefficients : BT.709

    __________________________________________________ _______

    AND THIS
    ________
    General
    Complete name : C:\Users\youtube-dl\MYFILM.mp4
    Format : MPEG-4
    Format profile : Base Media
    Codec ID : isom (isom/iso2/mp41)
    File size : 28.0 Bytes
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  2. Usually that's easy. With ffmpeg:

    ffmpeg -i MYFILM.mp4 -i myfilm.m4a -map 0:v:0 -map 1:a:0 -c:v copy -c:a copy -y myfilm-av.mp4
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  3. Originally Posted by fornit View Post
    Usually that's easy. With ffmpeg:

    ffmpeg -i MYFILM.mp4 -i myfilm.m4a -map 0:v:0 -map 1:a:0 -c:v copy -c:a copy -y myfilm-av.mp4
    Thanks for the help I figured ffmpeg would do it but did not know the code
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