commit 7aafa0bfe8e098317f2d301014e76dddd769511b
author Vaibhav Raut <quic_vraut@quicinc.com> Mon Feb 06 17:45:22 2023 +0530
committer Michael Bestas <mkbestas@lineageos.org> Mon Apr 24 18:46:54 2023 +0300
tree 1c4e6bcba1cef8c147dd646de7dea7e46b1625f8
parent 871e939f3dabf4b72535226bd774e769d4da6ad2

HAL: Restrict calls to ADM for low-latency and ultra low-latency usecase

Stream must be registered for AUDIO_OUTPUT_FLAG_FAST and AUDIO_INPUT_FLAG_FAST.
The others are not intended to take this path. If all streams are registered,
they wait for focus which leads to underruns.
Added extra condition for ultra low latency usecase (AUDIO_OUTPUT_FLAG_RAW and
AUDIO_INPUT_FLAG_RAW) to avoid delay.

Change-Id: Ib8886d83e33aa0e8aa7bae1bec6472b4381557bf

hal/audio_hw.c

diff --git a/hal/audio_hw.c b/hal/audio_hw.c
index edec6b9..79e52ed 100644
--- a/hal/audio_hw.c
+++ b/hal/audio_hw.c
@@ -3320,7 +3320,7 @@
             in->pcm = NULL;
             goto error_open;
         }
-        if (in->flags == AUDIO_INPUT_FLAG_FAST)
+        if (in->flags  & (AUDIO_INPUT_FLAG_FAST | AUDIO_INPUT_FLAG_RAW))
             register_in_stream(in);
         if (in->realtime) {
             ATRACE_BEGIN("pcm_in_start");
@@ -4175,7 +4175,7 @@
     }
 
     if (ret == 0) {
-        if (out->flags == AUDIO_OUTPUT_FLAG_FAST)
+        if (out->flags & (AUDIO_OUTPUT_FLAG_FAST | AUDIO_OUTPUT_FLAG_RAW))
             register_out_stream(out);
         if (out->realtime) {
             if (out->pcm == NULL || !pcm_is_ready(out->pcm)) {