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  1. Hi please help a ***

    I have a source like this:

    https://www.dropbox.com/s/b09etl1i2bfryj5/C0058.MXF?dl=0


    Code:
    General
    Complete name                            : C:\Users\Administrator\Desktop\Nuova cartella\C0058.MXF
    Format                                   : MXF
    Commercial name                          : XDCAM HD422
    Format version                           : 1.2
    Format profile                           : OP-1a
    Format settings                          : Closed / Complete
    File size                                : 56.1 MiB
    Duration                                 : 7 s 760 ms
    Overall bit rate                         : 60.7 Mb/s
    Encoded date                             : 2017-08-09 19:25:38.000
    Writing application                      : SONY Opt 1.22
    
    Video
    ID                                       : 2
    Format                                   : MPEG Video
    Commercial name                          : XDCAM HD422
    Format version                           : Version 2
    Format profile                           : 4:2:2@High
    Format settings, BVOP                    : Yes
    Format settings, Matrix                  : Custom
    Format settings, GOP                     : M=3, N=12
    Format settings, picture structure       : Frame
    Format settings, wrapping mode           : Frame
    Codec ID                                 : 0D01030102046001-0401020201040300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 50.0 Mb/s
    Width                                    : 1 920 pixels
    Height                                   : 1 080 pixels
    Display aspect ratio                     : 16:9
    Frame rate                               : 25.000 FPS
    Standard                                 : Component
    Color space                              : YUV
    Chroma subsampling                       : 4:2:2
    Bit depth                                : 8 bits
    Scan type                                : Interlaced
    Scan order                               : Top Field First
    Compression mode                         : Lossy
    Bits/(Pixel*Frame)                       : 0.965
    Stream size                              : 46.3 MiB (82%)
    Color primaries                          : BT.709
    Transfer characteristics                 : BT.709
    Matrix coefficients                      : BT.709
    
    Audio #1
    ID                                       : 3
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Audio #2
    ID                                       : 4
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Audio #3
    ID                                       : 5
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Audio #4
    ID                                       : 6
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Audio #5
    ID                                       : 7
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Audio #6
    ID                                       : 8
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Audio #7
    ID                                       : 9
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Audio #8
    ID                                       : 10
    Format                                   : PCM
    Format settings, Endianness              : Little
    Format settings, wrapping mode           : Frame (AES)
    Codec ID                                 : 0D01030102060300
    Duration                                 : 7 s 760 ms
    Bit rate mode                            : Constant
    Bit rate                                 : 1 152 kb/s
    Channel(s)                               : 1 channel
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 25.000 FPS (1920 spf)
    Bit depth                                : 24 bits
    Stream size                              : 1.07 MiB (2%)
    Locked                                   : Yes
    
    Other #1
    ID                                       : 1-Material
    Type                                     : Time code
    Format                                   : MXF TC
    Time code of first frame                 : 00:00:03:05
    Time code settings                       : Material Package
    Time code, striped                       : Yes
    
    Other #2
    ID                                       : 1-Source
    Type                                     : Time code
    Format                                   : MXF TC
    Time code of first frame                 : 00:00:03:05
    Time code settings                       : Source Package
    Time code, striped                       : Yes
    
    Other #3
    Type                                     : Time code
    Format                                   : SMPTE TC
    Muxing mode                              : SDTI
    Time code of first frame                 : 00:00:03:05
    and build this script

    Code:
    LoadPlugin("v:\automazioneclip\avisynth\plugins\LSMASHSource.dll")
    vid=LWLibavVideoSource("C:\Users\Administrator\Desktop\Nuova cartella\C0058.MXF").Crop(0,0,-0,-0).DelayAudio(-0.0).LanczosResize(960,540).ShowSMPTE(fps=25, offset="01:13:04:17",x=68, y=61, font="Arial", size=24, text_color=$ff0000)
    aud=LWLibavAudioSource("C:\Users\Administrator\Desktop\Nuova cartella\C0058.MXF")
    
    left = GetChannel(aud, 1)
    right = GetChannel(aud, 2)
    
    both=mergechannels(left, right)
    
    audiodub(vid, both)
    ConvertAudioTo16Bit()
    but Avisynth returns:

    GetChannel: Attempted to request a channel that didn't exist!
    (C:\Users\Administrator\Desktop\Nuova cartella\miao.avs, line 7)


    I need to load CH1 and CH2 of the C0058.MXF source file, how is possible that? thanks

    p.s.: this source have not audio in CH1/CH2/CH3 but however I try to understand why avisynth won't load it
    Quote Quote  
  2. The audio is in mono tracks, not channels of a single track. So you need to set left = LWLibavAudioSource (stream_index=x), right= LWLibavAudioSource (stream_index=y)

    http://avisynth.nl/index.php/LSMASHSource/LWLibavAudioSource
    Quote Quote  
  3. Image
    [Attachment 42844 - Click to enlarge]


    Code:
    LoadPlugin("v:\automazioneclip\avisynth\plugins\LSMASHSource.dll")
    vid=LWLibavVideoSource("C:\Users\Administrator\Desktop\Nuova cartella\C0097.MXF").Crop(0,0,-0,-0).DelayAudio(-0.0).LanczosResize(960,540).ShowSMPTE(fps=25, offset="01:13:04:17",x=600, y=500, font="Arial", size=50, text_color=$ffffff).converttoYV16()
    aud=LWLibavAudioSource("C:\Users\Administrator\Desktop\Nuova cartella\C0097.MXF")
    
    left = LWLibavAudioSource("C:\Users\Administrator\Desktop\Nuova cartella\C0097.MXF", stream_index=1)
    right = LWLibavAudioSource("C:\Users\Administrator\Desktop\Nuova cartella\C0097.MXF", stream_index=2)
    
    both=mergechannels(left, right)
    
    audiodub(vid, both)
    ConvertAudioTo16Bit()
    Histogram("audiolevels")
    Quote Quote  



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