On Fri, 2018-03-16 at 09:10 -0700, Charlie Laub wrote:
Hi Charlie,
> In some cases I might not know the input audio caps, and they might
> already be the same as the desired output caps. In that case, does
> the resampling code actually run as if it was changing the sample
> rate, or is the element automatically bypassed when it discovers that
> no change is needed? I looked at the code in gstaudioresample.c but I
> did not see anything about it.
Yes, both elements should work in passthrough mode if downstream can
accept the input caps and no work is needed.
> Also, if I need to reformat AND resample, can I construct the
> pipeline like this:
> … ! audioconvert ! audioresample ! audio/x-
> raw,format=NEW_FORMAT,rate=NEW_RATE ! …
Yes, that should work.
> Or do I need to explicitly provide caps for both elements
> (audioconvert and audioresample), like this:
> … ! audioconvert ! audio/x-raw,format=NEW_FORMAT ! audioresample !
> audio/x-raw,rate=NEW_RATE ! …
This should also work, but not be needed.
Cheers
-Tim
--
Tim Müller, Centricular Ltd -
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