Code:

void SimpleOpenGL3App::dumpFramesToVideo(const char* mp4FileName)

Code:

m_data->m_ffmpegFile = popen(cmd, "w");

Code:

m_data->m_ffmpegFile = popen(cmd, "wb");

Code:

[rawvideo @ 000001f6a6c1c9c0] Packet corrupt (stream = 0, dts = 30).pipe:: corrupt input packet in stream 0[rawvideo @ 000001f6a6c309c0] Invalid buffer size, packet size 11490 < expected frame_size 3145728Error while decoding stream #0:0: Invalid argumentframe=   30 fps= 14 q=-1.0 Lsize=     659kB time=00:00:00.45 bitrate=11997.1kbits/s speed=0.212xvideo:658kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.179747%[libx264 @ 000001f6a6c32b00] frame I:2     Avg QP:26.98  size: 25858[libx264 @ 000001f6a6c32b00] frame P:12    Avg QP:28.75  size: 20910[libx264 @ 000001f6a6c32b00] frame B:16    Avg QP:30.83  size: 23150[libx264 @ 000001f6a6c32b00] consecutive B-frames:  6.7% 66.7%  0.0% 26.7%[libx264 @ 000001f6a6c32b00] mb I  I16..4: 61.4%  7.4% 31.2%[libx264 @ 000001f6a6c32b00] mb P  I16..4: 17.2%  5.8% 10.9%  P16..4: 35.3% 11.1%  3.2%  0.0%  0.0%    skip:16.4%[libx264 @ 000001f6a6c32b00] mb B  I16..4: 21.7%  2.6%  9.6%  B16..8: 36.8%  9.9%  2.4%  direct: 7.2%  skip:10.0%  L0:45.6% L1:46.2% BI: 8.2%[libx264 @ 000001f6a6c32b00] 8x8 transform intra:11.0% inter:15.6%[libx264 @ 000001f6a6c32b00] direct mvs  spatial:62.5% temporal:37.5%[libx264 @ 000001f6a6c32b00] coded y,uvDC,uvAC intra: 24.3% 48.4% 37.9% inter: 10.9% 36.2% 23.7%[libx264 @ 000001f6a6c32b00] i16 v,h,dc,p: 46% 53%  1%  0%[libx264 @ 000001f6a6c32b00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16%  8% 75%  0%  0%  0%  0%  0%  1%[libx264 @ 000001f6a6c32b00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 37% 19%  2%  1%  1%  2%  2%  3%[libx264 @ 000001f6a6c32b00] i8c dc,h,v,p: 25% 45% 29%  1%[libx264 @ 000001f6a6c32b00] Weighted P-Frames: Y:0.0% UV:0.0%[libx264 @ 000001f6a6c32b00] ref P L0: 18.4%  0.8% 57.4%  6.6% 16.8%[libx264 @ 000001f6a6c32b00] ref B L0: 47.4% 36.9% 11.3%  4.5%[libx264 @ 000001f6a6c32b00] ref B L1: 97.1%  2.9%[libx264 @ 000001f6a6c32b00] kb/s:10768.56

Code:

int main(int argc, char** argv){std::cout << "main starts.\n";SimpleOpenGL3App *app = new SimpleOpenGL3App("Simulation test", 1024, 768, true);prevMouseButtonCallback = app->m_window->getMouseButtonCallback();prevMouseMoveCallback = app->m_window->getMouseMoveCallback();app->m_window->setMouseButtonCallback((b3MouseButtonCallback)OnMouseDown);app->m_window->setMouseMoveCallback((b3MouseMoveCallback)OnMouseMove);OpenGLGuiHelper gui(app, false);CommonExampleOptions options(&gui);Parameter *param = new Parameter();simulation = new Simulation(options.m_guiHelper);simulation->processCommandLineArgs(argc, argv);simulation->initParameter(param);simulation->initPhysics();simulation->resetCamera();char bla[32];float clr_black[4] = { 1, 1, 1, 1 };const char* videoFileName = "../output/output_video.mp4";app->dumpFramesToVideo(videoFileName);app->m_renderer->writeTransforms();do {static int frameCount = 0;frameCount++;// initializing renderedapp->m_instancingRenderer->init();app->m_instancingRenderer->updateCamera(app->getUpAxis());// step simualtion//simulation->stepSimulation(param->m_time_step);simulation->stepSimulation(param->m_time_step);// render instancessimulation->renderScene();app->m_renderer->renderScene();// draw gridDrawGridData dg;dg.gridSize = 15;dg.upAxis = app->getUpAxis();app->setBackgroundColor(1, 1, 1);app->drawGrid(dg);// draw Textsprintf(bla, "Frame: %d", frameCount);app->drawText(bla, 10, 10, 0.5, clr_black);// end rendering this frameapp->swapBuffer();}while (!app->m_window->requestedExit() && !(exitFlag || simulation->exitSim));simulation->exitPhysics();std::cout << "Simulation terminated...\n";delete simulation;delete param;delete app;std::cout << "Done. Exit Safe.\n";return 0;}