Add libaudiousecasevalidation library
This library will verify the audio attributes usage for a track
that is connected to the specified stream.
It will only update the audio attributes usage for AUDIO_USAGE_MEDIA or
AUDIO_USAGE_UNKNOWN, to AUDIO_USAGE_GAME if output flags AUDIO_OUTPUT_FLAG_FAST
or AUDIO_OUTPUT_FLAG_MMAP_NOIRQ have been set for specified stream.
Bug: 257922898
Test: atest libaudiousecasevalidation-test
Change-Id: Ic2d89fa05467538abbc97d707478df1d70901fdb
diff --git a/media/libaudiousecasevalidation/UsecaseLookup.cpp b/media/libaudiousecasevalidation/UsecaseLookup.cpp
new file mode 100644
index 0000000..9def180
--- /dev/null
+++ b/media/libaudiousecasevalidation/UsecaseLookup.cpp
@@ -0,0 +1,79 @@
+#define LOG_TAG "UsecaseLookup"
+// #define LOG_NDEBUG 0
+
+#include "media/UsecaseLookup.h"
+
+#include <utils/Log.h>
+
+namespace android {
+namespace media {
+
+/**
+ * Add streamId and outputFlags to stream list.
+ */
+void UsecaseLookup::addStream(STREAMID streamId, bool outputFlagGame) {
+ ALOGV("%s streamId: %d outputFlagGame: %d", __func__, streamId, outputFlagGame);
+
+ mutex_lock lock(m_mutex);
+ m_streams[streamId] = outputFlagGame;
+}
+
+/**
+ * Remove streamId from stream list.
+ */
+void UsecaseLookup::removeStream(STREAMID streamId) {
+ ALOGV("%s streamId: %d ", __func__, streamId);
+
+ mutex_lock lock(m_mutex);
+ m_streams.erase(streamId);
+
+ // Shouldn't happen but it might.
+ for (auto it = m_tracks.begin(); it != m_tracks.end();) {
+ if (it->second == streamId) {
+ it = m_tracks.erase(it);
+ } else {
+ it++;
+ }
+ }
+}
+
+/**
+ * Add streamId and portId to track list.
+ */
+void UsecaseLookup::addTrack(STREAMID streamId, PORTID portId) {
+ ALOGV("%s streamId: %d portId: %d", __func__, streamId, portId);
+
+ mutex_lock lock(m_mutex);
+
+ if (m_tracks.find(portId) == m_tracks.end()) {
+ m_tracks[portId] = streamId;
+ }
+}
+
+/**
+ * Remove streamId and portId from track list.
+ */
+void UsecaseLookup::removeTrack(STREAMID streamId, PORTID portId) {
+ ALOGV("%s streamId: %d portId: %d", __func__, streamId, portId);
+
+ mutex_lock lock(m_mutex);
+ auto it = m_tracks.find(portId);
+
+ if (it != m_tracks.end() && it->second == streamId) {
+ m_tracks.erase(portId);
+ }
+}
+
+/**
+ * Check if stream list contains streamId with Game outputFlag.
+ */
+bool UsecaseLookup::isGameStream(STREAMID streamId) {
+ ALOGV("%s streamId: %d ", __func__, streamId);
+ mutex_lock lock(m_mutex);
+ auto it = m_streams.find(streamId);
+
+ return (it != m_streams.end()) ? it->second : false;
+}
+
+} // namespace media
+} // namespace android