system/bta/le_audio/codec_manager.h

/*
 * Copyright 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 "le_audio_types.h"

namespace le_audio {

struct offload_config {
  std::vector<std::pair<uint16_t, uint32_t>> stream_map;
  uint8_t bits_per_sample;
  uint32_t sampling_rate;
  uint32_t frame_duration;
  uint16_t octets_per_frame;
  uint8_t blocks_per_sdu;
  uint16_t peer_delay_ms;
};

class CodecManager {
 public:
  CodecManager();
  virtual ~CodecManager() = default;
  static CodecManager* GetInstance(void) {
    static CodecManager* instance = new CodecManager();
    return instance;
  }
  void Start(const std::vector<bluetooth::le_audio::btle_audio_codec_config_t>&
                 offloading_preference);
  void Stop(void);
  virtual types::CodecLocation GetCodecLocation(void) const;
  virtual void UpdateActiveSourceAudioConfig(
      const stream_configuration& stream_conf, uint16_t delay_ms,
      std::function<void(const ::le_audio::offload_config& config)>
          update_receiver);
  virtual void UpdateActiveSinkAudioConfig(
      const stream_configuration& stream_conf, uint16_t delay_ms,
      std::function<void(const ::le_audio::offload_config& config)>
          update_receiver);
  const ::le_audio::set_configurations::AudioSetConfigurations*
  GetOffloadCodecConfig(::le_audio::types::LeAudioContextType ctx_type);

 private:
  struct impl;
  std::unique_ptr<impl> pimpl_;
};
}  // namespace le_audio