// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMECAST_MEDIA_CMA_BACKEND_MIXER_POST_PROCESSORS_POST_PROCESSOR_WRAPPER_H_
#define CHROMECAST_MEDIA_CMA_BACKEND_MIXER_POST_PROCESSORS_POST_PROCESSOR_WRAPPER_H_
// Provides a wrapper for AudioPostProcessor to allow using it as an
// AudioPostProcessor2. This works by simply fowarding the input buffer as the
// output buffer, since the original AudioPostProcessor API has equal numbers of
// input and output channels.
//
// Note that AudioPostProcessor is DEPRECATED and support will be dropped
// entirely in the near future.
#include <memory>
#include <string>
#include "chromecast/public/media/audio_post_processor2_shlib.h"
namespace chromecast {
namespace media {
class AudioPostProcessor;
class AudioPostProcessorWrapper : public AudioPostProcessor2 {
public:
// AudioPostProcessorWrapper owns |pp|.
AudioPostProcessorWrapper(std::unique_ptr<AudioPostProcessor> pp,
int channels);
// AudioPostProcessorWrapper does not own |pp|. Calling code is responsible
// for owning the lifetime of |pp|. This should only be used for testing.
AudioPostProcessorWrapper(AudioPostProcessor* pp, int channels);
AudioPostProcessorWrapper(const AudioPostProcessorWrapper&) = delete;
AudioPostProcessorWrapper& operator=(const AudioPostProcessorWrapper&) =
delete;
~AudioPostProcessorWrapper() override;
private:
// AudioPostProcessor2 implementation:
bool SetConfig(const Config& config) override;
const Status& GetStatus() override;
void ProcessFrames(float* data, int frames, Metadata* metadata) override;
bool UpdateParameters(const std::string& message) override;
void SetContentType(AudioContentType content_type) override;
void SetPlayoutChannel(int channel) override;
std::unique_ptr<AudioPostProcessor> owned_pp_;
Status status_;
AudioPostProcessor* pp_;
};
} // namespace media
} // namespace chromecast
#endif // CHROMECAST_MEDIA_CMA_BACKEND_MIXER_POST_PROCESSORS_POST_PROCESSOR_WRAPPER_H_