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110 lines
2.5 KiB
C++
110 lines
2.5 KiB
C++
/*
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* CVideoHandler.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#ifndef DISABLE_VIDEO
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#include "../lib/Point.h"
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#include "IVideoPlayer.h"
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struct SDL_Surface;
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struct SDL_Texture;
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struct AVFormatContext;
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struct AVCodecContext;
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struct AVCodecParameters;
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struct AVCodec;
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struct AVFrame;
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struct AVIOContext;
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VCMI_LIB_NAMESPACE_BEGIN
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class CInputStream;
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class Point;
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VCMI_LIB_NAMESPACE_END
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class FFMpegStream : boost::noncopyable
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{
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std::unique_ptr<CInputStream> input;
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AVIOContext * context = nullptr;
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AVFormatContext * formatContext = nullptr;
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const AVCodec * codec = nullptr;
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AVCodecContext * codecContext = nullptr;
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int streamIndex = -1;
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AVFrame * frame = nullptr;
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protected:
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void openContext();
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void openCodec(int streamIndex);
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int findVideoStream() const;
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int findAudioStream() const;
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const AVCodecParameters * getCodecParameters() const;
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const AVCodecContext * getCodecContext() const;
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void decodeNextFrame();
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const AVFrame * getCurrentFrame() const;
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double getCurrentFrameEndTime() const;
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double getCurrentFrameDuration() const;
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public:
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virtual ~FFMpegStream();
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bool openInput(const VideoPath & fname);
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};
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class CAudioInstance final : public FFMpegStream
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{
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public:
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std::pair<std::unique_ptr<ui8[]>, si64> extractAudio(const VideoPath & videoToOpen);
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};
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class CVideoInstance final : public IVideoInstance, public FFMpegStream
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{
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friend class CVideoPlayer;
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struct SwsContext * sws = nullptr;
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SDL_Texture * textureRGB = nullptr;
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SDL_Texture * textureYUV = nullptr;
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SDL_Surface * surface = nullptr;
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Point dimensions;
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/// video playback current progress, in seconds
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double frameTime = 0.0;
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void prepareOutput(float scaleFactor, bool useTextureOutput);
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public:
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~CVideoInstance();
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void openVideo();
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bool loadNextFrame();
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bool videoEnded() final;
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Point size() final;
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void show(const Point & position, Canvas & canvas) final;
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void tick(uint32_t msPassed) final;
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};
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class CVideoPlayer final : public IVideoPlayer
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{
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bool openAndPlayVideoImpl(const VideoPath & name, const Point & position, bool useOverlay, bool stopOnKey);
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void openVideoFile(CVideoInstance & state, const VideoPath & fname);
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public:
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void playSpellbookAnimation(const VideoPath & name, const Point & position) final;
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std::unique_ptr<IVideoInstance> open(const VideoPath & name, float scaleFactor) final;
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std::pair<std::unique_ptr<ui8[]>, si64> getAudio(const VideoPath & videoToOpen) final;
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};
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#endif
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