qwasmvideoframegrabber.cpp File Reference

(ed5bc105180202540d0ac57224887260ec4ecd93)

#include "qwasmvideoframegrabber_p.h"
#include "qwasmvideooutput_p.h"
#include "qwasmgltexturevideobuffer_p.h"
#include <QDebug>
#include <QOpenGLContext>
#include <QtGui/rhi/qrhi_platform.h>
#include <qpa/qplatformwindow_p.h>
#include <GLES2/gl2.h>
#include <qvideosink.h>
#include <private/qmemoryvideobuffer_p.h>
#include <private/qvideoframe_p.h>
#include <private/qstdweb_p.h>
#include <emscripten/emscripten.h>
#include <emscripten/em_js.h>
#include <emscripten/html5.h>
#include <emscripten/val.h>

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Functions
	EM_JS (void, em_texImage2DFromVideo,(const char *videoId, int *pW, int *pH), { var gl=GL.currentContext.GLctx;var video=document.getElementById(UTF8ToString(videoId));if(!video) { return;} var frame;try { frame=new VideoFrame(video);} catch(e) { return;} HEAP32[pW > > 2]=frame.displayWidth;HEAP32[pH > > 2]=frame.displayHeight;gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, frame);frame.close();})
	EM_JS (EMSCRIPTEN_WEBGL_CONTEXT_HANDLE, qwasm_find_webgl_context_for_canvas,(EM_VAL canvasHandle), { var canvas=Emval.toValue(canvasHandle);for(var id in GL.contexts) { var entry=GL.contexts[id];if(entry &&entry.GLctx &&entry.GLctx.canvas===canvas) return parseInt(id);} return 0;})

Function Documentation

EM_JS() [1/2]

EM_JS	(	EMSCRIPTEN_WEBGL_CONTEXT_HANDLE	,
		qwasm_find_webgl_context_for_canvas	,
		(EM_VAL canvasHandle)	,
		{ var canvas=Emval.toValue(canvasHandle);for(var id in GL.contexts) { var entry=GL.contexts[id];if(entry &&entry.GLctx &&entry.GLctx.canvas===canvas) return parseInt(id);} return 0;}	)

EM_JS() [2/2]

EM_JS	(	void	,
		em_texImage2DFromVideo	,
		(const char *videoId, int *pW, int *pH)	,
		{ var gl=GL.currentContext.GLctx;var video=document.getElementById(UTF8ToString(videoId));if(!video) { return;} var frame;try { frame=new VideoFrame(video);} catch(e) { return;} HEAP32[pW > > 2]=frame.displayWidth;HEAP32[pH > > 2]=frame.displayHeight;gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, frame);frame.close();}	)

References EM_JS().

Referenced by EM_JS().

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