Source code

Revision control

Other Tools

/* -*- 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 */
#ifndef mozilla_AppleATDecoder_h
#define mozilla_AppleATDecoder_h
#include <AudioToolbox/AudioToolbox.h>
#include "PlatformDecoderModule.h"
#include "mozilla/Vector.h"
#include "AudioConverter.h"
namespace mozilla {
class TaskQueue;
DDLoggedTypeDeclNameAndBase(AppleATDecoder, MediaDataDecoder);
class AppleATDecoder : public MediaDataDecoder,
public DecoderDoctorLifeLogger<AppleATDecoder> {
explicit AppleATDecoder(const AudioInfo& aConfig);
RefPtr<InitPromise> Init() override;
RefPtr<DecodePromise> Decode(MediaRawData* aSample) override;
RefPtr<DecodePromise> Drain() override;
RefPtr<FlushPromise> Flush() override;
RefPtr<ShutdownPromise> Shutdown() override;
nsCString GetDescriptionName() const override {
return "apple coremedia decoder"_ns;
// Callbacks also need access to the config.
const AudioInfo mConfig;
// Use to extract magic cookie for HE-AAC detection.
nsTArray<uint8_t> mMagicCookie;
// Will be set to true should an error occurred while attempting to retrieve
// the magic cookie property.
bool mFileStreamError;
nsCOMPtr<nsISerialEventTarget> mThread;
AudioConverterRef mConverter;
AudioStreamBasicDescription mOutputFormat;
UInt32 mFormatID;
AudioFileStreamID mStream;
nsTArray<RefPtr<MediaRawData>> mQueuedSamples;
UniquePtr<AudioConfig::ChannelLayout> mChannelLayout;
UniquePtr<AudioConverter> mAudioConverter;
DecodedData mDecodedSamples;
void ProcessShutdown();
MediaResult DecodeSample(MediaRawData* aSample);
MediaResult GetInputAudioDescription(AudioStreamBasicDescription& aDesc,
const nsTArray<uint8_t>& aExtraData);
// Setup AudioConverter once all information required has been gathered.
// Will return NS_ERROR_NOT_INITIALIZED if more data is required.
MediaResult SetupDecoder(MediaRawData* aSample);
nsresult GetImplicitAACMagicCookie(const MediaRawData* aSample);
nsresult SetupChannelLayout();
uint32_t mParsedFramesForAACMagicCookie;
bool mErrored;
} // namespace mozilla
#endif // mozilla_AppleATDecoder_h