mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-30 05:35:31 +00:00
98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
/* -*- 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 "nsWrapperCache.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsAutoPtr.h"
|
|
#include "nsIThreadPool.h"
|
|
#include "nsString.h"
|
|
#include "nsTArray.h"
|
|
#include "mozilla/dom/TypedArray.h"
|
|
#include <utility>
|
|
|
|
namespace mozilla {
|
|
|
|
class MediaDecoderReader;
|
|
namespace dom {
|
|
class AudioBuffer;
|
|
class AudioContext;
|
|
class DecodeErrorCallback;
|
|
class DecodeSuccessCallback;
|
|
}
|
|
|
|
struct WebAudioDecodeJob MOZ_FINAL
|
|
{
|
|
// You may omit both the success and failure callback, or you must pass both.
|
|
// The callbacks are only necessary for asynchronous operation.
|
|
WebAudioDecodeJob(const nsACString& aContentType,
|
|
dom::AudioContext* aContext,
|
|
const dom::ArrayBuffer& aBuffer,
|
|
dom::DecodeSuccessCallback* aSuccessCallback = nullptr,
|
|
dom::DecodeErrorCallback* aFailureCallback = nullptr);
|
|
~WebAudioDecodeJob();
|
|
|
|
NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(WebAudioDecodeJob)
|
|
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_NATIVE_CLASS(WebAudioDecodeJob)
|
|
|
|
enum ErrorCode {
|
|
NoError,
|
|
UnknownContent,
|
|
UnknownError,
|
|
InvalidContent,
|
|
NoAudio
|
|
};
|
|
|
|
typedef void (WebAudioDecodeJob::*ResultFn)(ErrorCode);
|
|
typedef nsAutoArrayPtr<float> ChannelBuffer;
|
|
|
|
void OnSuccess(ErrorCode /* ignored */);
|
|
void OnFailure(ErrorCode aErrorCode);
|
|
|
|
bool AllocateBuffer();
|
|
|
|
|
|
JS::Heap<JSObject*> mArrayBuffer;
|
|
nsCString mContentType;
|
|
uint32_t mWriteIndex;
|
|
nsRefPtr<dom::AudioContext> mContext;
|
|
nsRefPtr<dom::DecodeSuccessCallback> mSuccessCallback;
|
|
nsRefPtr<dom::DecodeErrorCallback> mFailureCallback; // can be null
|
|
nsRefPtr<dom::AudioBuffer> mOutput;
|
|
FallibleTArray<ChannelBuffer> mChannelBuffers;
|
|
};
|
|
|
|
/**
|
|
* This class is used to decode media buffers on a dedicated threadpool.
|
|
*
|
|
* This class manages the resources that it uses internally (such as the
|
|
* thread-pool) and provides a clean external interface.
|
|
*/
|
|
class MediaBufferDecoder
|
|
{
|
|
public:
|
|
void AsyncDecodeMedia(const char* aContentType, uint8_t* aBuffer,
|
|
uint32_t aLength, WebAudioDecodeJob& aDecodeJob);
|
|
|
|
bool SyncDecodeMedia(const char* aContentType, uint8_t* aBuffer,
|
|
uint32_t aLength, WebAudioDecodeJob& aDecodeJob);
|
|
|
|
void Shutdown();
|
|
|
|
private:
|
|
bool EnsureThreadPoolInitialized();
|
|
|
|
private:
|
|
nsCOMPtr<nsIThreadPool> mThreadPool;
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|
|
|