Creative Communities of the World Forums

The peer to peer support community for media production professionals.

Activity Forums Compression Techniques Splitting 14 channels into 14 tracks

  • Reuben Martin

    October 16, 2012 at 5:40 pm

    I think your right. I created a test file with a video and a 16 channel audio stream. I created it with ffmpeg btw. It can _create_ the 16 channel audio stream, but the filter subsystem doesn’t like it when I feed it back in to try to split the channels out. Gives errors about invalid channel layout.

    Hopefully the developers will make a matrix filter in the future to be able to map any input:stream:channel to any output:stream:channel that isn’t constrained by channel layout presets.

  • Kev James

    April 8, 2014 at 9:41 am

    Hi, I am trying to export all audio channels from a quicktime file which has the following audio configuration:

    Track 1 – mono
    Track 2 – mono
    Track 3 – mono
    Track 4 – mono
    Track 5 – mono
    Track 6 – mono
    Track 7 – stereo

    I am using:

    CODE: SELECT ALL
    ffmpeg -i Feature.mov -map 0:1 -y Left.wav -map 0:2 Right.wav -map 0:3 Center.wav -map 0:4 LFE.wav -map 0:5 Left_Surround.wav -map 0:6 Right_Surround.wav -map 0.7 Left_Total.wav -map 0.8 Right_Total.wav

    But this is giving me an error, ‘Data stream encoding not supported yet (only streamcopy)’.
    So I want to output 6 mono wavs and 1 stereo wav.
    How do I do that?

    Kind regards.

Page 2 of 2

We use anonymous cookies to give you the best experience we can.
Our Privacy policy | GDPR Policy