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88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef __AppleMP3Reader_h__
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#define __AppleMP3Reader_h__
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#include "MediaDecoderReader.h"
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#include "MP3FrameParser.h"
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#include "VideoUtils.h"
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#include <AudioToolbox/AudioToolbox.h>
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namespace mozilla {
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class AppleMP3Reader : public MediaDecoderReader
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{
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public:
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explicit AppleMP3Reader(AbstractMediaDecoder *aDecoder);
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virtual ~AppleMP3Reader() MOZ_OVERRIDE;
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virtual nsresult Init(MediaDecoderReader* aCloneDonor) MOZ_OVERRIDE;
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nsresult PushDataToDemuxer();
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virtual bool DecodeAudioData() MOZ_OVERRIDE;
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virtual bool DecodeVideoFrame(bool &aKeyframeSkip,
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int64_t aTimeThreshold) MOZ_OVERRIDE;
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virtual bool HasAudio() MOZ_OVERRIDE;
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virtual bool HasVideo() MOZ_OVERRIDE;
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virtual nsresult ReadMetadata(MediaInfo* aInfo,
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MetadataTags** aTags) MOZ_OVERRIDE;
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virtual void Seek(int64_t aTime,
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int64_t aStartTime,
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int64_t aEndTime,
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int64_t aCurrentTime) MOZ_OVERRIDE;
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void AudioSampleCallback(UInt32 aNumBytes,
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UInt32 aNumPackets,
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const void *aData,
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AudioStreamPacketDescription *aPackets);
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void AudioMetadataCallback(AudioFileStreamID aFileStream,
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AudioFileStreamPropertyID aPropertyID,
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UInt32 *aFlags);
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virtual void NotifyDataArrived(const char* aBuffer,
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uint32_t aLength,
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int64_t aOffset) MOZ_OVERRIDE;
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virtual bool IsMediaSeekable() MOZ_OVERRIDE;
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private:
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void SetupDecoder();
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nsresult Read(uint32_t *aNumBytes, char *aData);
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static OSStatus PassthroughInputDataCallback(AudioConverterRef aAudioConverter,
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UInt32 *aNumDataPackets,
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AudioBufferList *aData,
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AudioStreamPacketDescription **aPacketDesc,
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void *aUserData);
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// Initialisation has to be done in a callback, so we store the result here.
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bool mStreamReady;
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// Number of audio samples in an audio packet. Constant over all packets in a
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// stream.
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UInt32 mAudioFramesPerCompressedPacket;
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// Store the next audio frame to be played; so we can keep time when seeking.
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UInt64 mCurrentAudioFrame;
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UInt32 mAudioChannels;
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UInt32 mAudioSampleRate;
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uint64_t mDuration;
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AudioFileStreamID mAudioFileStream;
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AudioConverterRef mAudioConverter;
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MP3FrameParser mMP3FrameParser;
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};
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} // namespace mozilla
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#endif // __AppleMP3Reader_h__
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