RLBoxSoundTouch.h - mozsearch

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef RLBOXSOUNDTOUCH_H_

#define RLBOXSOUNDTOUCH_H_

#include "RLBoxSoundTouchTypes.h"

// Load general firefox configuration of RLBox

#include "mozilla/rlbox/rlbox_config.h"

#undef RLBOX_WASM2C_MODULE_NAME

#define RLBOX_WASM2C_MODULE_NAME rlboxsoundtouch

#ifdef MOZ_WASM_SANDBOXING_SOUNDTOUCH

// Include the generated header file so that we are able to resolve the symbols

// in the wasm binary

#  include "rlboxsoundtouch.wasm.h"

#  define RLBOX_USE_STATIC_CALLS() rlbox_wasm2c_sandbox_lookup_symbol

#  include "mozilla/rlbox/rlbox_wasm2c_sandbox.hpp"

#else

// Extra configuration for no-op sandbox

#  define RLBOX_USE_STATIC_CALLS() rlbox_noop_sandbox_lookup_symbol

#  include "mozilla/rlbox/rlbox_noop_sandbox.hpp"

#endif

#include "mozilla/rlbox/rlbox.hpp"

#include "AudioStream.h"

//  Use abort() instead of exception in SoundTouch.

#define ST_NO_EXCEPTION_HANDLING 1

#include "soundtouch/SoundTouchFactory.h"

#if defined(WIN32)

#if defined(BUILDING_SOUNDTOUCH)

#define RLBOX_SOUNDTOUCH_API __declspec(dllexport)

#else

#define RLBOX_SOUNDTOUCH_API __declspec(dllimport)

#endif

#else

#define RLBOX_SOUNDTOUCH_API __attribute__((visibility("default")))

#endif

namespace mozilla {

class RLBoxSoundTouch {

 public:

  RLBOX_SOUNDTOUCH_API

  RLBoxSoundTouch();

  RLBOX_SOUNDTOUCH_API

  ~RLBoxSoundTouch();

  RLBOX_SOUNDTOUCH_API

  void setSampleRate(uint aRate);

  RLBOX_SOUNDTOUCH_API

  void setChannels(uint aChannels);

  RLBOX_SOUNDTOUCH_API

  void setPitch(double aPitch);

  RLBOX_SOUNDTOUCH_API

  void setSetting(int aSettingId, int aValue);

  RLBOX_SOUNDTOUCH_API

  void setTempo(double aTempo);

  RLBOX_SOUNDTOUCH_API

  uint numChannels();

  RLBOX_SOUNDTOUCH_API

  tainted_soundtouch<uint> numSamples();

  RLBOX_SOUNDTOUCH_API

  tainted_soundtouch<uint> numUnprocessedSamples();

  RLBOX_SOUNDTOUCH_API

  void setRate(double aRate);

  RLBOX_SOUNDTOUCH_API

  void putSamples(const mozilla::AudioDataValue* aSamples, uint aNumSamples);

  RLBOX_SOUNDTOUCH_API

  uint receiveSamples(mozilla::AudioDataValue* aOutput, uint aMaxSamples);

  RLBOX_SOUNDTOUCH_API

  void flush();

 private:

  uint mChannels{0};

  rlbox_sandbox_soundtouch mSandbox;

  tainted_soundtouch<mozilla::AudioDataValue*> mSampleBuffer{nullptr};

  uint mSampleBufferSize{1};

  tainted_soundtouch<soundtouch::SoundTouch*> mTimeStretcher{nullptr};

  RLBOX_SOUNDTOUCH_API

  void resizeSampleBuffer(uint aNewSize);

};

}  // namespace mozilla

#endif