[FFmpeg-devel] [PATCH 3/8] decklink: Introduce support for capture of multiple audio streams

Matthias Hunstock atze at fem.tu-ilmenau.de
Tue Jan 2 11:52:40 EET 2018

Am 29.12.2017 um 19:12 schrieb Devin Heitmueller:
> To support the existing use case where multi-channel audio can be
> captured (i.e. 7.1)

Just to be clear, the current use case is NOT to capture multi-channel
audio like 7.1. It's just to capture all of the mono SDI channels into
one FFmpeg-internal audio stream and FFmpeg calls 8 channels "7.1".

As you already noticed, the audio mapping is far from standardized and
has to be adapted anyway in most use cases... having said that, I find
the option value "discrete" misleading. I would expect every channel to
be in a separate stream when reading that, but I'm not a native english
speaker. What about e.g. "bundled"?

Last but not least, I cannot find an update to the documentation in this
patch ;)


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