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Use gstreamer to generate raw LPCM audio files
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| 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" | |
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@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?