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127 lines
3.9 KiB
C++
127 lines
3.9 KiB
C++
#pragma once
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struct SDL_Surface;
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class IVideoPlayer
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{
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public:
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virtual bool open(std::string name, bool scale = false)=0; //true - succes
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virtual void close()=0;
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virtual bool nextFrame()=0;
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virtual void show(int x, int y, SDL_Surface *dst, bool update = true)=0;
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virtual void redraw(int x, int y, SDL_Surface *dst, bool update = true)=0; //reblits buffer
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virtual bool wait()=0;
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virtual int curFrame() const =0;
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virtual int frameCount() const =0;
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};
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class IMainVideoPlayer : public IVideoPlayer
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{
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public:
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std::string fname; //name of current video file (empty if idle)
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virtual void update(int x, int y, SDL_Surface *dst, bool forceRedraw, bool update = true){}
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virtual bool openAndPlayVideo(std::string name, int x, int y, SDL_Surface *dst, bool stopOnKey = false, bool scale = false)
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{
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return false;
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}
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};
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class CEmptyVideoPlayer : public IMainVideoPlayer
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{
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public:
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int curFrame() const override {return -1;};
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int frameCount() const override {return -1;};
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void redraw( int x, int y, SDL_Surface *dst, bool update = true ) override {};
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void show( int x, int y, SDL_Surface *dst, bool update = true ) override {};
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bool nextFrame() override {return false;};
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void close() override {};
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bool wait() override {return false;};
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bool open(std::string name, bool scale = false) override {return false;};
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};
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#ifndef DISABLE_VIDEO
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#include "../lib/filesystem/CInputStream.h"
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#include <SDL.h>
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#include <SDL_video.h>
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#if SDL_VERSION_ATLEAST(1,3,0) && !SDL_VERSION_ATLEAST(2,0,0)
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#include <SDL_compat.h>
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#endif
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extern "C" {
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#include <libavformat/avformat.h>
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#include <libswscale/swscale.h>
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// compatibility with different versions od libavutil
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#if (LIBAVUTIL_VERSION_INT < AV_VERSION_INT(51, 42, 0)) || \
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(LIBAVUTIL_VERSION_INT == AV_VERSION_INT(51, 73, 101))
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#define AV_PIX_FMT_NONE PIX_FMT_NONE
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#define AV_PIX_FMT_NV12 PIX_FMT_NV12
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#define AV_PIX_FMT_YUV420P PIX_FMT_YUV420P
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#define AV_PIX_FMT_UYVY422 PIX_FMT_UYVY422
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#define AV_PIX_FMT_YUYV422 PIX_FMT_YUYV422
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#endif
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}
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class CVideoPlayer : public IMainVideoPlayer
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{
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int stream; // stream index in video
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AVFormatContext *format;
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AVCodecContext *codecContext; // codec context for stream
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AVCodec *codec;
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AVFrame *frame;
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struct SwsContext *sws;
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AVIOContext * context;
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// Destination. Either overlay or dest.
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#ifdef VCMI_SDL1
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SDL_Overlay * overlay;
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#else
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SDL_Texture *texture;
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#endif
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SDL_Surface *dest;
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SDL_Rect destRect; // valid when dest is used
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SDL_Rect pos; // destination on screen
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int refreshWait; // Wait several refresh before updating the image
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int refreshCount;
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bool doLoop; // loop through video
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bool playVideo(int x, int y, SDL_Surface *dst, bool stopOnKey);
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bool open(std::string fname, bool loop, bool useOverlay = false, bool scale = false);
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public:
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CVideoPlayer();
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~CVideoPlayer();
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bool init();
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bool open(std::string fname, bool scale = false) override;
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void close() override;
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bool nextFrame() override; // display next frame
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void show(int x, int y, SDL_Surface *dst, bool update = true) override; //blit current frame
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void redraw(int x, int y, SDL_Surface *dst, bool update = true) override; //reblits buffer
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void update(int x, int y, SDL_Surface *dst, bool forceRedraw, bool update = true) override; //moves to next frame if appropriate, and blits it or blits only if redraw parameter is set true
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// Opens video, calls playVideo, closes video; returns playVideo result (if whole video has been played)
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bool openAndPlayVideo(std::string name, int x, int y, SDL_Surface *dst, bool stopOnKey = false, bool scale = false) override;
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//TODO:
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bool wait() override {return false;};
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int curFrame() const override {return -1;};
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int frameCount() const override {return -1;};
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// public to allow access from ffmpeg IO functions
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std::unique_ptr<CInputStream> data;
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};
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#endif
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