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Commit 98bd77c0 authored by yixuanjiang's avatar yixuanjiang
Browse files

audio: Add hotword port for zero latency feature 



Bug: 184006297
Test: local test
Signed-off-by: default avataryixuanjiang <yixuanjiang@google.com>
Change-Id: I05fe6e7b8df12dbe4145d168374a8efd2aced753
parent e046f308

audio/audio_policy_configuration.xml

+7 −0
Original line number Diff line number Diff line
@@ -84,6 +84,11 @@ 
                             samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000"

                             channelMasks="AUDIO_CHANNEL_IN_MONO AUDIO_CHANNEL_IN_STEREO AUDIO_CHANNEL_IN_FRONT_BACK AUDIO_CHANNEL_INDEX_MASK_3"/>

                </mixPort>

                <mixPort name="hotword input" role="sink" flags="AUDIO_INPUT_FLAG_HW_HOTWORD">

                    <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"

                             samplingRates="8000,11025,12000,16000,22050,24000,32000,44100,48000"

                             channelMasks="AUDIO_CHANNEL_IN_MONO,AUDIO_CHANNEL_IN_STEREO"/>

                </mixPort>

                <mixPort name="fast input" role="sink" flags="AUDIO_INPUT_FLAG_FAST">

                    <profile name="" format="AUDIO_FORMAT_PCM_8_24_BIT"

                             samplingRates="8000 11025 12000 16000 22050 24000 32000 44100 48000"
@@ -188,6 +193,8 @@ 
                       sources="voice_tx,incall_music_uplink"/>

                <route type="mix" sink="primary input"

                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,USB Device In,USB Headset In"/>

                <route type="mix" sink="hotword input"

                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,USB Device In,USB Headset In"/>

                <route type="mix" sink="fast input"

                       sources="Built-In Mic,Built-In Back Mic,Wired Headset Mic,BT SCO Headset Mic,USB Device In,USB Headset In"/>

                <route type="mix" sink="voice_rx"