Reduce the frequency of calls to get_device_api_level
This API call is made more than 100 times a second, and it's
contributing to more than 1% of total CPU cycles in the Audio Codec HAL
process.
Given that this is static information that doesn't change frequently, we
can move the API call to the constructor and cache the information to be
used later.
Test: manual testing by playing a video
Bug link: https://buganizer.corp.google.com/issues/244443227
Change-Id: I35b215d834bd71d9c725b76dcbc0d9aa597faa34
diff --git a/media/codec2/components/aac/C2SoftAacDec.cpp b/media/codec2/components/aac/C2SoftAacDec.cpp
index 4e4a9a1..d1b08bd 100644
--- a/media/codec2/components/aac/C2SoftAacDec.cpp
+++ b/media/codec2/components/aac/C2SoftAacDec.cpp
@@ -275,7 +275,8 @@
mStreamInfo(nullptr),
mSignalledError(false),
mOutputPortDelay(kDefaultOutputPortDelay),
- mOutputDelayRingBuffer(nullptr) {
+ mOutputDelayRingBuffer(nullptr),
+ mDeviceApiLevel(android_get_device_api_level()) {
}
C2SoftAacDec::~C2SoftAacDec() {
@@ -891,7 +892,7 @@
work->worklets.front()->output.configUpdate.push_back(
C2Param::Copy(currentBoostFactor));
- if (android_get_device_api_level() < __ANDROID_API_S__) {
+ if (mDeviceApiLevel < __ANDROID_API_S__) {
// We used to report DRC compression mode in the output format
// in Q and R, but stopped doing that in S
C2StreamDrcCompressionModeTuning::input currentCompressMode(0u,