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/* |
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* FFissionDecoder.h |
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* |
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* Copyright (c) 2006 David Conrad |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; |
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* version 2.1 of the License. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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* |
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*/ |
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#ifndef __FFISSIONDECODER_H__ |
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#define __FFISSIONDECODER_H__ |
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#include "FFissionCodec.h" |
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#include "avcodec.h" |
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#include "RingBuffer.h" |
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class FFissionDecoder : public FFissionCodec |
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{ |
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public: |
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FFissionDecoder(UInt32 inInputBufferByteSize = 76800); |
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virtual ~FFissionDecoder(); |
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virtual void Initialize(const AudioStreamBasicDescription* inInputFormat, const AudioStreamBasicDescription* inOutputFormat, const void* inMagicCookie, UInt32 inMagicCookieByteSize); |
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virtual void Uninitialize(); |
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virtual void Reset(); |
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virtual void GetProperty(AudioCodecPropertyID inPropertyID, UInt32& ioPropertyDataSize, void* outPropertyData); |
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virtual void SetMagicCookie(const void* inMagicCookieData, UInt32 inMagicCookieDataByteSize); |
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virtual void SetCurrentInputFormat(const AudioStreamBasicDescription& inInputFormat); |
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virtual void SetCurrentOutputFormat(const AudioStreamBasicDescription& inOutputFormat); |
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virtual UInt32 GetVersion() const; |
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virtual void AppendInputData(const void* inInputData, UInt32& ioInputDataByteSize, UInt32& ioNumberPackets, const AudioStreamPacketDescription* inPacketDescription); |
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virtual UInt32 ProduceOutputPackets(void* outOutputData, UInt32& ioOutputDataByteSize, UInt32& ioNumberPackets, AudioStreamPacketDescription* outPacketDescription); |
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private: |
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void SetupExtradata(OSType formatID); |
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int ConvertXiphVorbisCookie(); |
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void OpenAVCodec(); |
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UInt32 kIntPCMOutFormatFlag; |
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Byte *magicCookie; |
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UInt32 magicCookieSize; |
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RingBuffer inputBuffer; |
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Byte *outputBuffer; |
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int outBufSize; |
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int outBufUsed; |
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}; |
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// kAudioCodecPropertyHasVariablePacketByteSizes is queried before our input format is set, |
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// so we can't use that to determine our answer... |
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class FFissionVBRDecoder : public FFissionDecoder |
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{ |
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public: |
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FFissionVBRDecoder() : FFissionDecoder() { } |
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virtual void GetProperty(AudioCodecPropertyID inPropertyID, UInt32& ioPropertyDataSize, void* outPropertyData); |
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}; |
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#endif |
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