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/*
* Copyright (C) 2022 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "BTAudioProviderA2dpHW"
#include "A2dpOffloadAudioProvider.h"
#include <BluetoothAudioCodecs.h>
#include <BluetoothAudioSessionReport.h>
#include <android-base/logging.h>
#include "A2dpOffloadCodecAac.h"
#include "A2dpOffloadCodecSbc.h"
namespace aidl {
namespace android {
namespace hardware {
namespace bluetooth {
namespace audio {
A2dpOffloadEncodingAudioProvider::A2dpOffloadEncodingAudioProvider(
const A2dpOffloadCodecFactory& codec_factory)
: A2dpOffloadAudioProvider(codec_factory) {
session_type_ = SessionType::A2DP_HARDWARE_OFFLOAD_ENCODING_DATAPATH;
}
A2dpOffloadDecodingAudioProvider::A2dpOffloadDecodingAudioProvider(
const A2dpOffloadCodecFactory& codec_factory)
: A2dpOffloadAudioProvider(codec_factory) {
session_type_ = SessionType::A2DP_HARDWARE_OFFLOAD_DECODING_DATAPATH;
}
A2dpOffloadAudioProvider::A2dpOffloadAudioProvider(
const A2dpOffloadCodecFactory& codec_factory)
: codec_factory_(codec_factory) {}
bool A2dpOffloadAudioProvider::isValid(const SessionType& session_type) {
return (session_type == session_type_);
}
ndk::ScopedAStatus A2dpOffloadAudioProvider::startSession(
const std::shared_ptr<IBluetoothAudioPort>& host_if,
const AudioConfiguration& audio_config,
const std::vector<LatencyMode>& latency_modes, DataMQDesc* _aidl_return) {
if (audio_config.getTag() == AudioConfiguration::Tag::a2dp) {
auto a2dp_config = audio_config.get<AudioConfiguration::Tag::a2dp>();
A2dpStatus a2dp_status = A2dpStatus::NOT_SUPPORTED_CODEC_TYPE;
auto codec = codec_factory_.GetCodec(a2dp_config.codecId);
if (!codec) {
LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
<< " - CodecId=" << a2dp_config.codecId.toString()
<< " is not found";
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
if (codec->info.id == CodecId(CodecId::A2dp::SBC)) {
SbcParameters sbc_parameters;
auto codec_sbc =
std::static_pointer_cast<const A2dpOffloadCodecSbc>(codec);
a2dp_status = codec_sbc->ParseConfiguration(a2dp_config.configuration,
&sbc_parameters);
} else if (codec->info.id == CodecId(CodecId::A2dp::AAC)) {
AacParameters aac_parameters;
auto codec_aac =
std::static_pointer_cast<const A2dpOffloadCodecAac>(codec);
a2dp_status = codec_aac->ParseConfiguration(a2dp_config.configuration,
&aac_parameters);
}
if (a2dp_status != A2dpStatus::OK) {
LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
<< audio_config.toString();
*_aidl_return = DataMQDesc();
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
} else if (audio_config.getTag() == AudioConfiguration::Tag::a2dpConfig) {
if (!BluetoothAudioCodecs::IsOffloadCodecConfigurationValid(
session_type_,
audio_config.get<AudioConfiguration::a2dpConfig>())) {
LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
<< audio_config.toString();
*_aidl_return = DataMQDesc();
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
} else {
LOG(WARNING) << __func__ << " - Invalid Audio Configuration="
<< audio_config.toString();
*_aidl_return = DataMQDesc();
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
return BluetoothAudioProvider::startSession(
host_if, audio_config, latency_modes, _aidl_return);
}
ndk::ScopedAStatus A2dpOffloadAudioProvider::onSessionReady(
DataMQDesc* _aidl_return) {
*_aidl_return = DataMQDesc();
BluetoothAudioSessionReport::OnSessionStarted(
session_type_, stack_iface_, nullptr, *audio_config_, latency_modes_);
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus A2dpOffloadAudioProvider::parseA2dpConfiguration(
const CodecId& codec_id, const std::vector<uint8_t>& configuration,
CodecParameters* codec_parameters, A2dpStatus* _aidl_return) {
if (!kEnableA2dpCodecExtensibility) {
// parseA2dpConfiguration must not be implemented if A2dp codec
// extensibility is not supported.
return ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION);
}
auto codec = codec_factory_.GetCodec(codec_id);
if (!codec) {
LOG(INFO) << __func__ << " - SessionType=" << toString(session_type_)
<< " - CodecId=" << codec_id.toString() << " is not found";
return ndk::ScopedAStatus::fromExceptionCode(EX_ILLEGAL_ARGUMENT);
}
*_aidl_return = codec->ParseConfiguration(configuration, codec_parameters);
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus A2dpOffloadAudioProvider::getA2dpConfiguration(
const std::vector<A2dpRemoteCapabilities>& remote_a2dp_capabilities,
const A2dpConfigurationHint& hint,
std::optional<audio::A2dpConfiguration>* _aidl_return) {
if (!kEnableA2dpCodecExtensibility) {
// getA2dpConfiguration must not be implemented if A2dp codec
// extensibility is not supported.
return ndk::ScopedAStatus::fromStatus(STATUS_UNKNOWN_TRANSACTION);
}
*_aidl_return = std::nullopt;
A2dpConfiguration avdtp_configuration;
if (codec_factory_.GetConfiguration(remote_a2dp_capabilities, hint,
&avdtp_configuration))
*_aidl_return =
std::make_optional<A2dpConfiguration>(std::move(avdtp_configuration));
return ndk::ScopedAStatus::ok();
}
} // namespace audio
} // namespace bluetooth
} // namespace hardware
} // namespace android
} // namespace aidl