81 lines
3.0 KiB
C++
81 lines
3.0 KiB
C++
/******************************************************************************
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QtAV: Multimedia framework based on Qt and FFmpeg
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Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
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* This file is part of QtAV
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This library 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; either
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version 2.1 of the License, or (at your option) any later version.
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This library 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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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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******************************************************************************/
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#ifndef QAV_AUDIODECODER_H
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#define QAV_AUDIODECODER_H
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#include "AVDecoder.h"
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#include "AudioFrame.h"
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#include <QtCore/QStringList>
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#define USE_AUDIO_FRAME 1
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//TODO: decoder.in/outAudioFormat()?
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namespace FAV {
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typedef int AudioDecoderId;
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// built-in decoders
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extern Q_AV_EXPORT AudioDecoderId AudioDecoderId_FFmpeg;
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class AudioResampler;
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class AudioDecoderPrivate;
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class Q_AV_EXPORT AudioDecoder : public AVDecoder
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{
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Q_DISABLE_COPY(AudioDecoder)
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DPTR_DECLARE_PRIVATE(AudioDecoder)
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public:
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static QStringList supportedCodecs();
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static AudioDecoder* create(AudioDecoderId id);
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/*!
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* \brief create
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* create a decoder from registered name. FFmpeg decoder will be created for empty name
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* \param name can be "FFmpeg"
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* \return 0 if not registered
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*/
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static AudioDecoder* create(const char* name = "FFmpeg");
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virtual AudioDecoderId id() const = 0;
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QString name() const; //name from factory
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virtual QByteArray data() const; //decoded data
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virtual AudioFrame frame() = 0;
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AudioResampler *resampler(); //TODO: remove. can not share the same resampler for multiple frames
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public:
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template<class C> static bool Register(AudioDecoderId id, const char* name) { return Register(id, create<C>, name);}
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/*!
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* \brief next
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* \param id NULL to get the first id address
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* \return address of id or NULL if not found/end
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*/
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static AudioDecoderId* next(AudioDecoderId* id = 0);
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static const char* name(AudioDecoderId id);
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static AudioDecoderId id(const char* name);
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private:
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// if QtAV is static linked (ios for example), components may be not automatically registered. Add registerAll() to workaround
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static void registerAll();
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template<class C> static AudioDecoder* create() { return new C();}
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typedef AudioDecoder* (*AudioDecoderCreator)();
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static bool Register(AudioDecoderId id, AudioDecoderCreator, const char *name);
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protected:
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AudioDecoder(AudioDecoderPrivate& d);
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private:
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AudioDecoder();
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};
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} //namespace FAV
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#endif // QAV_AUDIODECODER_H
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