113 lines
4.3 KiB
C++
113 lines
4.3 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 QTAV_VIDEODECODER_H
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#define QTAV_VIDEODECODER_H
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#include "AVDecoder.h"
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#include "VideoFrame.h"
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#include <QtCore/QStringList>
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namespace FAV {
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typedef int VideoDecoderId;
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/*!
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Useful properties.
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A key is a string, a value can be int, bool or string. Both int and string are valid for enumerate
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properties. Flag properties must use int if more than 1 value is used.
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e.g. decoder->setProperty("display", 1) equals decoder->setProperty("display", "GLX")
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setOptions() also applies the properties.
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avcodec (also for VA-API, DXVA, VDA)
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Use AVCodecContext options
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CUDA
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surfaces: 0 is auto
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deinterlace: 0 "Weave", 1 "Bob", 2 "Adaptive"
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VA-API
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display: 0 "X11", 1 "GLX", 2 "DRM"
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DXVA, VA-API
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surfaces: 0 default
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DXVA, VA-API, VDA:
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sse4: bool
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CedarV
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neon: bool
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FFmpeg
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skip_loop_filter, skip_idct, skip_frame: -16 "None", 0: "Default", 8 "NoRef", 16 "Bidir", 32 "NoKey", 64 "All"
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threads: int, 0 is auto
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vismv(motion vector visualization): flag, 0 "NO", 1 "PF", 2 "BF", 4 "BB"
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*/
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class VideoDecoderPrivate;
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class Q_AV_EXPORT VideoDecoder : public AVDecoder
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{
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Q_DISABLE_COPY(VideoDecoder)
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DPTR_DECLARE_PRIVATE(VideoDecoder)
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public:
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static QStringList supportedCodecs();
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static VideoDecoder* create(VideoDecoderId 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", "CUDA", "VDA", "VAAPI", "DXVA", "Cedarv"
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* \return 0 if not registered
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*/
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static VideoDecoder* create(const char* name = "FFmpeg");
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virtual VideoDecoderId id() const = 0;
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QString name() const; //name from factory
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virtual VideoFrame frame() = 0;
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public:
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typedef int Id;
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static QVector<VideoDecoderId> registered();
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template<class C> static bool Register(VideoDecoderId 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 VideoDecoderId* next(VideoDecoderId* id = 0);
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static const char* name(VideoDecoderId id);
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static VideoDecoderId id(const char* name);
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private:
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template<class C> static VideoDecoder* create() { return new C();}
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typedef VideoDecoder* (*VideoDecoderCreator)();
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protected:
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static bool Register(VideoDecoderId id, VideoDecoderCreator, const char *name);
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protected:
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VideoDecoder(VideoDecoderPrivate& d);
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private:
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VideoDecoder();
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};
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extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_FFmpeg;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_CUDA;
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#ifdef RM_USE_HW_DECODER
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extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_DXVA;
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#endif
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_D3D11;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_VAAPI;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_Cedarv;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_VDA;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_VideoToolbox;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_MediaCodec;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_MMAL;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_QSV;
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//extern Q_AV_EXPORT VideoDecoderId VideoDecoderId_CrystalHD;
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} //namespace FAV
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#endif // QTAV_VIDEODECODER_H
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