146 lines
4.8 KiB
C++
146 lines
4.8 KiB
C++
/******************************************************************************
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QtAV: Media play library 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 (from 2016)
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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_VIDEODECODERD3D_H
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#define QTAV_VIDEODECODERD3D_H
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#ifdef RM_USE_HW_DECODER
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#include <unknwn.h>
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#include <inttypes.h>
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#include "VideoDecoderFFmpegHW.h"
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#include "VideoDecoderFFmpegHW_p.h"
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namespace FAV {
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struct d3d_format_t {
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const char *name;
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int fourcc;
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VideoFormat::PixelFormat pixfmt;
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};
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bool isIntelClearVideo(const GUID *guid);
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bool isNoEncrypt(const GUID* guid);
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int getSupportedFourcc(int *formats, UINT nb_formats);
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VideoFormat::PixelFormat pixelFormatFromFourcc(int format);
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class VideoDecoderD3DPrivate;
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class VideoDecoderD3D : public VideoDecoderFFmpegHW
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{
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DPTR_DECLARE_PRIVATE(VideoDecoderD3D)
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Q_OBJECT
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Q_PROPERTY(int surfaces READ surfaces WRITE setSurfaces NOTIFY surfacesChanged)
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public:
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// properties
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void setSurfaces(int num);
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int surfaces() const;
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Q_SIGNALS:
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void surfacesChanged();
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protected:
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VideoDecoderD3D(VideoDecoderD3DPrivate& d);
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};
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struct va_surface_t {
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va_surface_t() : ref(0), order(0) {}
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virtual ~va_surface_t() {}
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virtual void setSurface(IUnknown* s) = 0;
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virtual IUnknown* getSurface() const = 0;
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int ref;
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int order;
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};
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class VideoDecoderD3DPrivate : public VideoDecoderFFmpegHWPrivate
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{
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public:
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VideoDecoderD3DPrivate();
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bool open() Q_DECL_OVERRIDE;
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void close() Q_DECL_OVERRIDE;
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void* setup(AVCodecContext *avctx) Q_DECL_OVERRIDE;
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bool getBuffer(void **opaque, uint8_t **data) Q_DECL_OVERRIDE;
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void releaseBuffer(void *opaque, uint8_t *data) Q_DECL_OVERRIDE;
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int aligned(int x);
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private:
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virtual bool setupSurfaceInterop() {return true;}
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virtual bool createDevice() = 0; //d3d device, video context etc.
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virtual void destroyDevice() = 0;
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virtual bool checkDevice() {return true;}
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virtual QVector<GUID> getSupportedCodecs() const = 0;
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virtual void* setupAVVAContext() = 0;
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/// create surfaces and decoder. width and height are coded value, maybe not aligned for d3d surface
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/// surfaces count is given, but not allocated
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virtual bool createDecoder(AVCodecID codec, int width, int height, QVector<va_surface_t*>& surf) = 0;
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virtual void destroyDecoder() = 0;
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virtual int fourccFor(const GUID *guid) const = 0;
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const d3d_format_t *getFormat(const AVCodecContext* avctx, const QVector<GUID>& guids, GUID *selected) const;
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public:
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// set by user. don't reset in when call destroy
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bool surface_auto;
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int surface_count;
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QVector<IUnknown*> hw_surfaces;
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int format_fcc;
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GUID codec_guid;
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private:
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int surface_width;
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int surface_height;
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unsigned surface_order;
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QVector<va_surface_t*> surfaces; //TODO: delete on close()
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};
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template<typename T> int SelectConfig(AVCodecID codec_id, const T* cfgs, int nb_cfgs, T* cfg)
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{
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qDebug("Decoder configurations: %d", nb_cfgs);
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/* Select the best decoder configuration */
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int cfg_score = 0;
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for (int i = 0; i < nb_cfgs; i++) {
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const T &c = cfgs[i];
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qDebug("configuration[%d] ConfigBitstreamRaw %d", i, c.ConfigBitstreamRaw);
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/* */
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int score = 0;
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if (c.ConfigBitstreamRaw == 1)
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score = 1;
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else if (codec_id == QTAV_CODEC_ID(H264) && c.ConfigBitstreamRaw == 2)
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score = 2;
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else
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continue;
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if (isNoEncrypt(&c.guidConfigBitstreamEncryption))
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score += 16;
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if (cfg_score < score) {
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*cfg = c;
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cfg_score = score;
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}
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}
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if (cfg_score <= 0)
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qWarning("Failed to find a supported decoder configuration");
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return cfg_score;
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}
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#ifndef MAKEFOURCC //winrt
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#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
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((DWORD)(BYTE)(ch0)|((DWORD)(BYTE)(ch1)<<8)|((DWORD)(BYTE)(ch2)<<16)|((DWORD)(BYTE)(ch3)<<24))
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#endif //MAKEFOURCC
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} //namespace QtAV
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#endif // RM_USE_HW_DECODER
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#endif //QTAV_VIDEODECODERD3D_H
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