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enable png and mp4 output in SimpleOpenGL3App, see

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Demos3/SimpleOpenGL3 use commandline parameter
--png_file="pngname" or
--mp4_file="video.mp4"

Thanks to http://blog.mmacklin.com/2013/06/11/real-time-video-capture-with-ffmpeg/
This commit is contained in:
Erwin Coumans
2014-07-29 16:58:22 -07:00
parent fb01827aee
commit 0c39cda57b
4 changed files with 182 additions and 10 deletions
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38
Demos3/SimpleOpenGL3/main.cpp
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@@ -1,13 +1,18 @@
#include "../../btgui/OpenGLWindow/SimpleOpenGL3App.h"
#include "OpenGLWindow/SimpleOpenGL3App.h"
#include "Bullet3Common/b3Vector3.h"
#include "Bullet3Common/b3CommandLineArgs.h"
#include "assert.h"
#include <stdio.h>
char* gVideoFileName = 0;
char* gPngFileName = 0;
int main(int argc, char* argv[])
{
b3CommandLineArgs myArgs(argc,argv);
float dt = 1./120.f;
SimpleOpenGL3App* app = new SimpleOpenGL3App("SimpleOpenGL3App",1024,768);
app->m_instancingRenderer->setCameraDistance(13);
app->m_instancingRenderer->setCameraPitch(0);
@@ -15,25 +20,40 @@ int main(int argc, char* argv[])
GLint err = glGetError();
assert(err==GL_NO_ERROR);
myArgs.GetCmdLineArgument("mp4_file",gVideoFileName);
if (gVideoFileName)
app->dumpFramesToVideo(gVideoFileName);
myArgs.GetCmdLineArgument("png_file",gPngFileName);
char fileName[1024];
do
{
static int frameCount = 0;
frameCount++;
if (gPngFileName)
{
printf("gPngFileName=%s\n",gPngFileName);
sprintf(fileName,"%s%d.png",gPngFileName,frameCount++);
app->dumpNextFrameToPng(fileName);
}
GLint err = glGetError();
assert(err==GL_NO_ERROR);
app->m_instancingRenderer->init();
app->m_instancingRenderer->updateCamera();
app->drawGrid();
char bla[1024];
static int frameCount = 0;
frameCount++;
sprintf(bla,"Simple test frame %d", frameCount);
app->drawText(bla,10,10);
app->swapBuffer();
} while (!app->m_window->requestedExit());
delete app;
return 0;
}