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  • Minecrell's avatar
    Initial Commit · 8e3710ee
    Minecrell authored
    
    
    linux-postmarketos-qcom-msm8916 now supports voice call audio.
    However, at the moment the audio stream needs to be explicitly started
    by opening some PCM audio devices when the call is started
    (even though no audio data is written to the PCM device).
    
    Eventually this should go away by implementing codec2codec support
    for q6voice in the kernel. In that case, the stream would be started
    once the audio routes are set up using ALSA UCM. However, this is a bit
    complicated actually so for now it's nice to have a workaround:
    
    q6voiced listens on dbus for signals from oFono, and opens/closes the
    PCM device when a call is initiated/ended in oFono. This essentially
    makes voice call audio work out of the box (provided that the audio
    routing, e.g. Earpiece and a microphone is set up appropriately).
    
    Co-Authored-By: default avatarNikita Travkin <nikitos.tr@gmail.com>
    8e3710ee
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