execlp("ffmpeg", "ffmpeg", "-i", filename.c_str(), "-an", "-f", "image2pipe", "-vcodec", "ppm", "-", (const char *)NULL);
// We should never reach here unless the exec failed
cerr<<"Unable to open pipe to ffmpeg"<<endl;
execlp("ffmpeg", "ffmpeg", "-i", filename.c_str(), "-an", "-f", "image2pipe", "-vcodec", "ppm", "-", (const char *)NULL);
// We should never reach here unless the exec failed
cerr<<"Unable to open pipe to ffmpeg"<<endl;