commit 9d50b100471f9f440ddabefab1aa10a2f9c74f2d
author Arnau <arnaullv@gmail.com> Fri Aug 31 21:28:32 2018 +0200
committer Luca Weiss <luca.weiss@fairphone.com> Tue Sep 07 09:27:16 2021 +0200
tree 83e853fa64ffbf2640c082247279f3c2f759ec4b
parent c37d8abaff32c2b5feb5870c1534472461d621c2

audio: Replace qcom's deep_buffer with AOSP low_latency

It looks deep_buffer causes issues on the FP2 and was introduced
by accident during the audio_policy xml transformation

This fixes audio latency and stutters issues

Change-Id: I96f5e8f2ef3d268decbf11d3797c1f02a782034f

audio/audio_policy_configuration.xml

diff --git a/audio/audio_policy_configuration.xml b/audio/audio_policy_configuration.xml
index c9fefbd..bba442f 100644
--- a/audio/audio_policy_configuration.xml
+++ b/audio/audio_policy_configuration.xml
@@ -62,8 +62,8 @@
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </mixPort>
-                <mixPort name="deep_buffer" role="source"
-                        flags="AUDIO_OUTPUT_FLAG_DEEP_BUFFER">
+                <mixPort name="low_latency" role="source"
+                        flags="AUDIO_OUTPUT_FLAG_FAST">
                     <profile name="" format="AUDIO_FORMAT_PCM_16_BIT"
                              samplingRates="44100,48000" channelMasks="AUDIO_CHANNEL_OUT_STEREO"/>
                 </mixPort>
@@ -169,27 +169,27 @@
             <!-- route declaration, i.e. list all available sources for a given sink -->
             <routes>
                 <route type="mix" sink="Earpiece"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="Speaker"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="Wired Headset"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="Wired Headphones"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="Line"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="HDMI"
-                       sources="primary output,deep_buffer"/>
+                       sources="primary output,low_latency"/>
                 <route type="mix" sink="Proxy"
-                       sources="primary output,deep_buffer"/>
+                       sources="primary output,low_latency"/>
                 <route type="mix" sink="FM"
                        sources="primary output"/>
                 <route type="mix" sink="BT SCO"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="BT SCO Headset"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="BT SCO Car Kit"
-                       sources="primary output,deep_buffer,voip_rx"/>
+                       sources="primary output,low_latency,voip_rx"/>
                 <route type="mix" sink="Telephony Tx"
                        sources="voice_tx"/>
                 <route type="mix" sink="primary input"