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wkf/gist:5658578

Last active November 16, 2023 09:22
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Use gstreamer to generate raw LPCM audio files
Raw
gistfile1.txt
requirements:
brew: http://mxcl.github.io/homebrew/
xquartz: https://xquartz.macosforge.org/landing/
brew install mad
brew install gstreamer
brew install gst-plugins-base
brew install gst-plugins-good
brew install gst-plugins-ugly
test pipeline (should just play a tone):
gst-launch-1.0 audiotestsrc ! audioconvert ! osxaudiosink
write out audio file to disk (using same tone):
gst-launch-1.0 audiotestsrc ! audioconvert ! capsfilter caps = "audio/x-raw,format=F32BE,channels=1,rate=44100" ! filesink location = "audio.raw"
read audio file from disk (should play the same tone):
gst-launch-1.0 filesrc location = "audio.raw" ! capsfilter caps = "audio/x-raw,format=F32BE,channels=1,rate=44100" ! audioconvert ! osxaudiosink
decode mp3 and write to disk:
gst-launch-1.0 filesrc location = shake.mp3 ! decodebin ! audioconvert ! capsfilter caps = "audio/x-raw,format=F32BE,channels=1,rate=44100" ! filesink location = "audio.raw"
@CAMOBAP
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CAMOBAP commented May 19, 2017

Unfortunately this will not allow to link with elements which require audio/x-lpcm cap

@jay-uchenna
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jay-uchenna commented Nov 16, 2023 •
edited

@CAMOBAP did you find a way to encode/parse audio/x-raw to audio/x-lpcm in order to perform a successful link with elements which require audio/x-lpcm cap like mpegtsmux?

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