MediaBufferDecoder.h

Enable keyboard shortcuts

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

/* vim:set ts=2 sw=2 sts=2 et cindent: */

/* 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 MediaBufferDecoder_h_

#define MediaBufferDecoder_h_

#include "AudioSegment.h"

#include "nsWrapperCache.h"

#include "nsCOMPtr.h"

#include "nsString.h"

#include "nsTArray.h"

#include "mozilla/Attributes.h"

#include "mozilla/dom/TypedArray.h"

#include "mozilla/MemoryReporting.h"

namespace mozilla {

class ThreadSharedFloatArrayBufferList;

namespace dom {

class AudioBuffer;

class AudioContext;

class DecodeErrorCallback;

class DecodeSuccessCallback;

class Promise;

}  // namespace dom

struct WebAudioDecodeJob final {

  // You may omit both the success and failure callback, or you must pass both.

  // The callbacks are only necessary for asynchronous operation.

  WebAudioDecodeJob(dom::AudioContext* aContext, dom::Promise* aPromise,

                    dom::DecodeSuccessCallback* aSuccessCallback = nullptr,

                    dom::DecodeErrorCallback* aFailureCallback = nullptr);

  ~WebAudioDecodeJob();

  enum ErrorCode {

    NoError,

    UnknownContent,

    UnknownError,

    InvalidContent,

    NoAudio

};

  typedef void (WebAudioDecodeJob::*ResultFn)(ErrorCode);

  MOZ_CAN_RUN_SCRIPT void OnSuccess(ErrorCode /* ignored */);

  MOZ_CAN_RUN_SCRIPT void OnFailure(ErrorCode aErrorCode);

  bool AllocateBuffer();

  size_t SizeOfExcludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;

  size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const;

  AudioChunk mBuffer;

  RefPtr<dom::AudioContext> mContext;

  RefPtr<dom::Promise> mPromise;

  RefPtr<dom::DecodeSuccessCallback> mSuccessCallback;

  RefPtr<dom::DecodeErrorCallback> mFailureCallback;  // can be null

  RefPtr<dom::AudioBuffer> mOutput;

};

void AsyncDecodeWebAudio(const char* aContentType, uint8_t* aBuffer,

                         uint32_t aLength, WebAudioDecodeJob& aDecodeJob);

}  // namespace mozilla

#endif