audio_processor.h

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/*
 * This file is part of Anbox Platform SDK
 *
 * Copyright 2021 Canonical Ltd.
 *
 * 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.
 */
 
#ifndef ANBOX_SDK_AUDIO_PROCESSOR_H_
#define ANBOX_SDK_AUDIO_PROCESSOR_H_
 
#include "anbox-platform-sdk/types.h"
 
#include <stdint.h>
#include <stddef.h>
#include <unistd.h>
#include <errno.h>
 
namespace anbox {
class AudioProcessor {
  public:
    AudioProcessor() = default;
    virtual ~AudioProcessor() = default;
    AudioProcessor(const AudioProcessor &) = delete;
    AudioProcessor& operator=(const AudioProcessor &) = delete;
 
    [[deprecated("Replaced by AudioProcessor::write_data")]]
    virtual size_t process_data(const uint8_t* data, size_t size) = 0;
 
    virtual ssize_t write_data(const uint8_t* data, size_t size) {
      (void) data;
      (void) size;
      return -EIO;
    }
 
    virtual ssize_t read_data(uint8_t* data, size_t size) {
      (void) data;
      (void) size;
      return -EIO;
    }
 
    virtual int standby(AnboxAudioStreamType type) {
      (void) type;
      return 0;
    }
 
    virtual int activate(AnboxAudioStreamType type) {
      (void) type;
      return 0;
    }
 
    virtual bool need_silence_on_standby() const {
      return false;
    }
};
} // namespace anbox
 
#endif