FF_GL_INFO_LOG_LENGTH  764 libavdevice/opengl_enc.c         opengl->glprocs.glGetShaderiv(shader, FF_GL_INFO_LOG_LENGTH, &result);
FF_GL_INFO_LOG_LENGTH  816 libavdevice/opengl_enc.c         opengl->glprocs.glGetProgramiv(opengl->program, FF_GL_INFO_LOG_LENGTH, &result);