Effects: add a method to retrieve audio configuration
An effect can be instantiated on different streams,
which affects its configuration. For some audio effects
like Visualizer it's important to know the sampling
rate that the effect operates on. The new method
provides means for retrieving current audio configuration
of the effect.
Bug: 162727518
Test: atest CtsMediaAudioTestCases:VisualizerTest
Change-Id: I2390dd07a67d1eaf4ed92a911d8a2c4b2e083027
diff --git a/media/libaudioclient/AudioEffect.cpp b/media/libaudioclient/AudioEffect.cpp
index 7b273ec..3d122fe 100644
--- a/media/libaudioclient/AudioEffect.cpp
+++ b/media/libaudioclient/AudioEffect.cpp
@@ -529,6 +529,36 @@
return status;
}
+status_t AudioEffect::getConfigs(
+ audio_config_base_t *inputCfg, audio_config_base_t *outputCfg)
+{
+ if (mProbe) {
+ return INVALID_OPERATION;
+ }
+ if (mStatus != NO_ERROR && mStatus != ALREADY_EXISTS) {
+ return mStatus;
+ }
+ if (inputCfg == NULL || outputCfg == NULL) {
+ return BAD_VALUE;
+ }
+ status_t status;
+ media::EffectConfig cfg;
+ Status bs = mIEffect->getConfig(&cfg, &status);
+ if (!bs.isOk()) {
+ status = statusTFromBinderStatus(bs);
+ ALOGW("%s received status %d from binder transaction", __func__, status);
+ return status;
+ }
+ if (status == NO_ERROR) {
+ *inputCfg = VALUE_OR_RETURN_STATUS(aidl2legacy_AudioConfigBase_audio_config_base_t(
+ cfg.inputCfg, cfg.isOnInputStream));
+ *outputCfg = VALUE_OR_RETURN_STATUS(aidl2legacy_AudioConfigBase_audio_config_base_t(
+ cfg.outputCfg, cfg.isOnInputStream));
+ } else {
+ ALOGW("%s received status %d from the effect", __func__, status);
+ }
+ return status;
+}
// -------------------------------------------------------------------------