Add support and detection for asymmetrical ASE configurations.
Detect asymmetric configuration in the set configuration and
codec capabilities files and set approriate flag.
Bug: 358194849
Test: atest BluetoothLeAudioCodecsProviderTest
Change-Id: I8103ae402aa2d1d07c2b09717e94d7a8ac384d1f
diff --git a/bluetooth/audio/utils/Android.bp b/bluetooth/audio/utils/Android.bp
index d4968a8..6d1da63 100644
--- a/bluetooth/audio/utils/Android.bp
+++ b/bluetooth/audio/utils/Android.bp
@@ -90,15 +90,15 @@
cc_test {
name: "BluetoothLeAudioCodecsProviderTest",
- srcs: [
- "aidl_session/BluetoothLeAudioCodecsProvider.cpp",
- "aidl_session/BluetoothLeAudioCodecsProviderTest.cpp",
- ],
defaults: [
"latest_android_hardware_audio_common_ndk_static",
"latest_android_hardware_bluetooth_audio_ndk_static",
"latest_android_media_audio_common_types_ndk_static",
],
+ srcs: [
+ "aidl_session/BluetoothLeAudioCodecsProvider.cpp",
+ "aidl_session/BluetoothLeAudioCodecsProviderTest.cpp",
+ ],
header_libs: [
"libxsdc-utils",
],
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothLeAudioAseConfigurationSettingProvider.cpp b/bluetooth/audio/utils/aidl_session/BluetoothLeAudioAseConfigurationSettingProvider.cpp
index 07e4997..5909c92 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothLeAudioAseConfigurationSettingProvider.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothLeAudioAseConfigurationSettingProvider.cpp
@@ -47,6 +47,8 @@
#include <aidl/android/hardware/bluetooth/audio/Phy.h>
#include <android-base/logging.h>
+#include <optional>
+
#include "flatbuffers/idl.h"
#include "flatbuffers/util.h"
@@ -561,6 +563,17 @@
if (ase_cnt == 2) directionAseConfiguration.push_back(config);
}
+// Comparing if 2 AseDirectionConfiguration is equal.
+// Configuration are copied in, so we can remove some fields for comparison
+// without affecting the result.
+bool isAseConfigurationEqual(AseDirectionConfiguration cfg_a,
+ AseDirectionConfiguration cfg_b) {
+ // Remove unneeded fields when comparing.
+ cfg_a.aseConfiguration.metadata = std::nullopt;
+ cfg_b.aseConfiguration.metadata = std::nullopt;
+ return cfg_a == cfg_b;
+}
+
void AudioSetConfigurationProviderJson::PopulateAseConfigurationFromFlat(
const le_audio::AudioSetConfiguration* flat_cfg,
std::vector<const le_audio::CodecConfiguration*>* codec_cfgs,
@@ -569,7 +582,7 @@
std::vector<std::optional<AseDirectionConfiguration>>&
sourceAseConfiguration,
std::vector<std::optional<AseDirectionConfiguration>>& sinkAseConfiguration,
- ConfigurationFlags& /*configurationFlags*/) {
+ ConfigurationFlags& configurationFlags) {
if (flat_cfg == nullptr) {
LOG(ERROR) << "flat_cfg cannot be null";
return;
@@ -636,17 +649,41 @@
sourceAseConfiguration, location);
}
}
- } else {
- if (codec_cfg == nullptr) {
- LOG(ERROR) << "No codec config matching key " << codec_config_key.c_str()
- << " found";
+
+ // After putting all subconfig, check if it's an asymmetric configuration
+ // and populate information for ConfigurationFlags
+ if (!sinkAseConfiguration.empty() && !sourceAseConfiguration.empty()) {
+ if (sinkAseConfiguration.size() == sourceAseConfiguration.size()) {
+ for (int i = 0; i < sinkAseConfiguration.size(); ++i) {
+ if (sinkAseConfiguration[i].has_value() !=
+ sourceAseConfiguration[i].has_value()) {
+ // Different configuration: one is not empty and other is.
+ configurationFlags.bitmask |=
+ ConfigurationFlags::ALLOW_ASYMMETRIC_CONFIGURATIONS;
+ } else if (sinkAseConfiguration[i].has_value()) {
+ // Both is not empty, comparing inner fields:
+ if (!isAseConfigurationEqual(sinkAseConfiguration[i].value(),
+ sourceAseConfiguration[i].value())) {
+ configurationFlags.bitmask |=
+ ConfigurationFlags::ALLOW_ASYMMETRIC_CONFIGURATIONS;
+ }
+ }
+ }
+ } else {
+ // Different number of ASE, is a different configuration.
+ configurationFlags.bitmask |=
+ ConfigurationFlags::ALLOW_ASYMMETRIC_CONFIGURATIONS;
+ }
} else {
- LOG(ERROR) << "Configuration '" << flat_cfg->name()->c_str()
- << "' has no valid subconfigurations.";
+ if (codec_cfg == nullptr) {
+ LOG(ERROR) << "No codec config matching key "
+ << codec_config_key.c_str() << " found";
+ } else {
+ LOG(ERROR) << "Configuration '" << flat_cfg->name()->c_str()
+ << "' has no valid subconfigurations.";
+ }
}
}
-
- // TODO: Populate information for ConfigurationFlags
}
bool AudioSetConfigurationProviderJson::LoadConfigurationsFromFiles(
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProvider.cpp b/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProvider.cpp
index 59c43a4..a96df52 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProvider.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProvider.cpp
@@ -14,10 +14,13 @@
* limitations under the License.
*/
+#include <optional>
#include <set>
#include "aidl/android/hardware/bluetooth/audio/ChannelMode.h"
#include "aidl/android/hardware/bluetooth/audio/CodecId.h"
+#include "aidl/android/hardware/bluetooth/audio/CodecInfo.h"
+#include "aidl/android/hardware/bluetooth/audio/ConfigurationFlags.h"
#include "aidl_android_hardware_bluetooth_audio_setting_enums.h"
#define LOG_TAG "BTAudioCodecsProviderAidl"
@@ -52,6 +55,26 @@
return le_audio_offload_setting;
}
+void add_flag(CodecInfo& codec_info, int32_t bitmask) {
+ auto& transport =
+ codec_info.transport.get<CodecInfo::Transport::Tag::leAudio>();
+ if (!transport.flags.has_value()) transport.flags = ConfigurationFlags();
+ transport.flags->bitmask |= bitmask;
+}
+
+// Compare 2 codec info to see if they are equal.
+// Currently only compare bitdepth, frameDurationUs and samplingFrequencyHz
+bool is_equal(CodecInfo& codec_info_a, CodecInfo& codec_info_b) {
+ auto& transport_a =
+ codec_info_a.transport.get<CodecInfo::Transport::Tag::leAudio>();
+ auto& transport_b =
+ codec_info_b.transport.get<CodecInfo::Transport::Tag::leAudio>();
+ return codec_info_a.name == codec_info_b.name &&
+ transport_a.bitdepth == transport_b.bitdepth &&
+ transport_a.frameDurationUs == transport_b.frameDurationUs &&
+ transport_a.samplingFrequencyHz == transport_b.samplingFrequencyHz;
+}
+
std::unordered_map<SessionType, std::vector<CodecInfo>>
BluetoothLeAudioCodecsProvider::GetLeAudioCodecInfo(
const std::optional<setting::LeAudioOffloadSetting>&
@@ -111,6 +134,9 @@
codec_info.transport =
CodecInfo::Transport::make<CodecInfo::Transport::Tag::leAudio>();
+ // Add low latency support by default
+ add_flag(codec_info, ConfigurationFlags::LOW_LATENCY);
+
// Mapping codec configuration information
auto& transport =
codec_info.transport.get<CodecInfo::Transport::Tag::leAudio>();
@@ -152,6 +178,25 @@
}
}
+ // Goes through a list of scenarios and detect asymmetrical config using
+ // codecConfiguration name.
+ for (auto& s : supported_scenarios_) {
+ if (s.hasEncode() && s.hasDecode() &&
+ config_codec_info_map_.count(s.getEncode()) &&
+ config_codec_info_map_.count(s.getDecode())) {
+ // Check if it's actually using the different codec
+ auto& encode_codec_info = config_codec_info_map_[s.getEncode()];
+ auto& decode_codec_info = config_codec_info_map_[s.getDecode()];
+ if (!is_equal(encode_codec_info, decode_codec_info)) {
+ // Change both x and y to become asymmetrical
+ add_flag(encode_codec_info,
+ ConfigurationFlags::ALLOW_ASYMMETRIC_CONFIGURATIONS);
+ add_flag(decode_codec_info,
+ ConfigurationFlags::ALLOW_ASYMMETRIC_CONFIGURATIONS);
+ }
+ }
+ }
+
// Goes through every scenario, deduplicate configuration, skip the invalid
// config references (e.g. the "invalid" entries in the xml file).
std::set<std::string> encoding_config, decoding_config, broadcast_config;
diff --git a/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProviderTest.cpp b/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProviderTest.cpp
index c47f7d5..6338e11 100644
--- a/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProviderTest.cpp
+++ b/bluetooth/audio/utils/aidl_session/BluetoothLeAudioCodecsProviderTest.cpp
@@ -20,10 +20,16 @@
#include <tuple>
#include "BluetoothLeAudioCodecsProvider.h"
+#include "aidl/android/hardware/bluetooth/audio/CodecInfo.h"
+#include "aidl/android/hardware/bluetooth/audio/ConfigurationFlags.h"
+#include "aidl/android/hardware/bluetooth/audio/SessionType.h"
using aidl::android::hardware::bluetooth::audio::BluetoothLeAudioCodecsProvider;
+using aidl::android::hardware::bluetooth::audio::CodecInfo;
+using aidl::android::hardware::bluetooth::audio::ConfigurationFlags;
using aidl::android::hardware::bluetooth::audio::
LeAudioCodecCapabilitiesSetting;
+using aidl::android::hardware::bluetooth::audio::SessionType;
using aidl::android::hardware::bluetooth::audio::setting::AudioLocation;
using aidl::android::hardware::bluetooth::audio::setting::CodecConfiguration;
using aidl::android::hardware::bluetooth::audio::setting::
@@ -51,15 +57,30 @@
static const Scenario kValidBroadcastScenario(
std::nullopt, std::nullopt, std::make_optional("BcastStereo_16_2"));
+static const Scenario kValidAsymmetricScenario(
+ std::make_optional("OneChanStereo_32_1"),
+ std::make_optional("OneChanStereo_16_1"), std::nullopt);
+
// Configuration
static const Configuration kValidConfigOneChanStereo_16_1(
std::make_optional("OneChanStereo_16_1"), std::make_optional("LC3_16k_1"),
std::make_optional("STEREO_ONE_CIS_PER_DEVICE"));
+
+static const Configuration kValidConfigOneChanStereo_32_1(
+ std::make_optional("OneChanStereo_32_1"), std::make_optional("LC3_32k_1"),
+ std::make_optional("STEREO_ONE_CIS_PER_DEVICE"));
+
// CodecConfiguration
static const CodecConfiguration kValidCodecLC3_16k_1(
std::make_optional("LC3_16k_1"), std::make_optional(CodecType::LC3),
std::nullopt, std::make_optional(16000), std::make_optional(7500),
std::make_optional(30), std::nullopt);
+
+static const CodecConfiguration kValidCodecLC3_32k_1(
+ std::make_optional("LC3_32k_1"), std::make_optional(CodecType::LC3),
+ std::nullopt, std::make_optional(32000), std::make_optional(7500),
+ std::make_optional(30), std::nullopt);
+
// StrategyConfiguration
static const StrategyConfiguration kValidStrategyStereoOneCis(
std::make_optional("STEREO_ONE_CIS_PER_DEVICE"),
@@ -181,6 +202,17 @@
kValidStrategyStereoOneCisBoth, kValidStrategyStereoTwoCisBoth,
kValidStrategyMonoOneCisBoth, kValidStrategyBroadcastStereoBoth})};
+// Define some valid asymmetric scenario list
+static const std::vector<ScenarioList> kValidAsymmetricScenarioList = {
+ ScenarioList(std::vector<Scenario>{kValidAsymmetricScenario})};
+static const std::vector<ConfigurationList> kValidAsymmetricConfigurationList =
+ {ConfigurationList(std::vector<Configuration>{
+ kValidConfigOneChanStereo_16_1, kValidConfigOneChanStereo_32_1})};
+static const std::vector<CodecConfigurationList>
+ kValidAsymmetricCodecConfigurationList = {
+ CodecConfigurationList(std::vector<CodecConfiguration>{
+ kValidCodecLC3_16k_1, kValidCodecLC3_32k_1})};
+
class BluetoothLeAudioCodecsProviderTest
: public ::testing::TestWithParam<OffloadSetting> {
public:
@@ -227,6 +259,19 @@
return le_audio_codec_capabilities;
}
+ std::unordered_map<SessionType, std::vector<CodecInfo>>
+ RunCodecInfoTestCase() {
+ auto& [scenario_lists, configuration_lists, codec_configuration_lists,
+ strategy_configuration_lists] = GetParam();
+ LeAudioOffloadSetting le_audio_offload_setting(
+ scenario_lists, configuration_lists, codec_configuration_lists,
+ strategy_configuration_lists);
+ auto le_audio_codec_capabilities =
+ BluetoothLeAudioCodecsProvider::GetLeAudioCodecInfo(
+ std::make_optional(le_audio_offload_setting));
+ return le_audio_codec_capabilities;
+ }
+
private:
static inline OffloadSetting CreateTestCase(
const ScenarioList& scenario_list,
@@ -392,6 +437,39 @@
ASSERT_TRUE(!le_audio_codec_capabilities.empty());
}
+class ComposeLeAudioAymmetricCodecInfoTest
+ : public BluetoothLeAudioCodecsProviderTest {
+ public:
+};
+
+TEST_P(ComposeLeAudioAymmetricCodecInfoTest, AsymmetricCodecInfoNotEmpty) {
+ Initialize();
+ auto le_audio_codec_info_map = RunCodecInfoTestCase();
+ ASSERT_TRUE(!le_audio_codec_info_map.empty());
+ // Check true asymmetric codec info
+ ASSERT_TRUE(!le_audio_codec_info_map
+ [SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH]
+ .empty());
+ ASSERT_TRUE(!le_audio_codec_info_map
+ [SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH]
+ .empty());
+ auto required_flag = ConfigurationFlags();
+ required_flag.bitmask |= ConfigurationFlags::ALLOW_ASYMMETRIC_CONFIGURATIONS;
+
+ auto codec_info = le_audio_codec_info_map
+ [SessionType::LE_AUDIO_HARDWARE_OFFLOAD_ENCODING_DATAPATH][0];
+ ASSERT_EQ(codec_info.transport.getTag(), CodecInfo::Transport::Tag::leAudio);
+ auto& transport =
+ codec_info.transport.get<CodecInfo::Transport::Tag::leAudio>();
+ ASSERT_EQ(transport.flags, std::make_optional(required_flag));
+
+ codec_info = le_audio_codec_info_map
+ [SessionType::LE_AUDIO_HARDWARE_OFFLOAD_DECODING_DATAPATH][0];
+ ASSERT_EQ(codec_info.transport.getTag(), CodecInfo::Transport::Tag::leAudio);
+ transport = codec_info.transport.get<CodecInfo::Transport::Tag::leAudio>();
+ ASSERT_EQ(transport.flags, std::make_optional(required_flag));
+}
+
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(GetScenariosTest);
INSTANTIATE_TEST_SUITE_P(
BluetoothLeAudioCodecsProviderTest, GetScenariosTest,
@@ -434,6 +512,15 @@
kValidScenarioList, kValidConfigurationList,
kValidCodecConfigurationList, kValidStrategyConfigurationList)));
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(
+ ComposeLeAudioAymmetricCodecInfoTest);
+INSTANTIATE_TEST_SUITE_P(
+ BluetoothLeAudioCodecsProviderTest, ComposeLeAudioAymmetricCodecInfoTest,
+ ::testing::ValuesIn(BluetoothLeAudioCodecsProviderTest::CreateTestCases(
+ kValidAsymmetricScenarioList, kValidAsymmetricConfigurationList,
+ kValidAsymmetricCodecConfigurationList,
+ kValidStrategyConfigurationList)));
+
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();