Support query encapsualtion modes and metadata types.
When a new device is attached to hardware module, query the HAL to get
the supported encapsulation modes and metadata types.
Test: atest EnumDevicesTest, manually
Test: atest audiofoundation_parcelable_test
Bug: 155799506
Change-Id: I903e46e35a44416c9f2d206c128face8a6c61dcb
diff --git a/media/libmediahelper/AudioParameter.cpp b/media/libmediahelper/AudioParameter.cpp
index 9f34035..fc8306c 100644
--- a/media/libmediahelper/AudioParameter.cpp
+++ b/media/libmediahelper/AudioParameter.cpp
@@ -53,6 +53,10 @@
const char * const AudioParameter::valueListSeparator = AUDIO_PARAMETER_VALUE_LIST_SEPARATOR;
const char * const AudioParameter::keyReconfigA2dp = AUDIO_PARAMETER_RECONFIG_A2DP;
const char * const AudioParameter::keyReconfigA2dpSupported = AUDIO_PARAMETER_A2DP_RECONFIG_SUPPORTED;
+// const char * const AudioParameter::keyDeviceSupportedEncapsulationModes =
+// AUDIO_PARAMETER_DEVICE_SUP_ENCAPSULATION_MODES;
+// const char * const AudioParameter::keyDeviceSupportedEncapsulationMetadataTypes =
+// AUDIO_PARAMETER_DEVICE_SUP_ENCAPSULATION_METADATA_TYPES;
AudioParameter::AudioParameter(const String8& keyValuePairs)
{
diff --git a/media/libmediahelper/include/media/AudioParameter.h b/media/libmediahelper/include/media/AudioParameter.h
index 3c190f2..66d8dfb 100644
--- a/media/libmediahelper/include/media/AudioParameter.h
+++ b/media/libmediahelper/include/media/AudioParameter.h
@@ -92,6 +92,18 @@
static const char * const keyReconfigA2dp;
static const char * const keyReconfigA2dpSupported;
+ // For querying device supported encapsulation capabilities. All returned values are integer,
+ // which are bit fields composed from using encapsulation capability values as position bits.
+ // Encapsulation capability values are defined in audio_encapsulation_mode_t and
+ // audio_encapsulation_metadata_type_t. For instance, if the supported encapsulation mode is
+ // AUDIO_ENCAPSULATION_MODE_ELEMENTARY_STREAM, the returned value is
+ // "supEncapsulationModes=1 << AUDIO_ENCAPSULATION_MODE_HANDLE".
+ // When querying device supported encapsulation capabilities, the key should use with device
+ // type and address so that it is able to identify the device. The device will be a key. The
+ // device type will be the value of key AUDIO_PARAMETER_STREAM_ROUTING.
+ // static const char * const keyDeviceSupportedEncapsulationModes;
+ // static const char * const keyDeviceSupportedEncapsulationMetadataTypes;
+
String8 toString() const { return toStringImpl(true); }
String8 keysToString() const { return toStringImpl(false); }