bluetooth/audio/utils/aidl_session/BluetoothAudioCodecs.h

/*
 * 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.
 */

#pragma once

#include <aidl/android/hardware/bluetooth/audio/CodecCapabilities.h>
#include <aidl/android/hardware/bluetooth/audio/CodecConfiguration.h>
#include <aidl/android/hardware/bluetooth/audio/CodecInfo.h>
#include <aidl/android/hardware/bluetooth/audio/IBluetoothAudioProvider.h>
#include <aidl/android/hardware/bluetooth/audio/LeAudioCodecCapabilitiesSetting.h>
#include <aidl/android/hardware/bluetooth/audio/LeAudioConfiguration.h>
#include <aidl/android/hardware/bluetooth/audio/OpusConfiguration.h>
#include <aidl/android/hardware/bluetooth/audio/PcmCapabilities.h>
#include <aidl/android/hardware/bluetooth/audio/PcmConfiguration.h>
#include <aidl/android/hardware/bluetooth/audio/SessionType.h>

#include <vector>

namespace aidl {
namespace android {
namespace hardware {
namespace bluetooth {
namespace audio {

using LeAudioAseConfigurationSetting =
    IBluetoothAudioProvider::LeAudioAseConfigurationSetting;

class BluetoothAudioCodecs {
 public:
  static std::vector<PcmCapabilities> GetSoftwarePcmCapabilities();
  static std::vector<CodecCapabilities> GetA2dpOffloadCodecCapabilities(
      const SessionType& session_type);

  static bool IsSoftwarePcmConfigurationValid(
      const PcmConfiguration& pcm_config);
  static bool IsOffloadCodecConfigurationValid(
      const SessionType& session_type, const CodecConfiguration& codec_config);

  static std::vector<LeAudioCodecCapabilitiesSetting>
  GetLeAudioOffloadCodecCapabilities(const SessionType& session_type);
  static std::vector<CodecInfo> GetLeAudioOffloadCodecInfo(
      const SessionType& session_type);

  static std::vector<LeAudioAseConfigurationSetting>
  GetLeAudioAseConfigurationSettings();

 private:
  template <typename T>
  struct identity {
    typedef T type;
  };
  template <class T>
  static bool ContainedInVector(const std::vector<T>& vector,
                                const typename identity<T>::type& target);
  template <class T>
  static bool ContainedInBitmask(const T& bitmask, const T& target);
  static bool IsSingleBit(uint32_t bitmasks, uint32_t bitfield);
  static bool IsOffloadSbcConfigurationValid(
      const CodecConfiguration::CodecSpecific& codec_specific);
  static bool IsOffloadAacConfigurationValid(
      const CodecConfiguration::CodecSpecific& codec_specific);
  static bool IsOffloadLdacConfigurationValid(
      const CodecConfiguration::CodecSpecific& codec_specific);
  static bool IsOffloadAptxConfigurationValid(
      const CodecConfiguration::CodecSpecific& codec_specific);
  static bool IsOffloadAptxHdConfigurationValid(
      const CodecConfiguration::CodecSpecific& codec_specific);
  static bool IsOffloadOpusConfigurationValid(
      const CodecConfiguration::CodecSpecific& codec_specific);
};

}  // namespace audio
}  // namespace bluetooth
}  // namespace hardware
}  // namespace android
}  // namespace aidl