close_output_stream  744 ffmpeg.c               close_output_stream(ost);
close_output_stream 1719 ffmpeg.c               close_output_stream(ost);
close_output_stream 1728 ffmpeg.c                   close_output_stream(ost);
close_output_stream 3228 ffmpeg.c                       close_output_stream(output_streams[of->ost_index + j]);
close_output_stream 3746 ffmpeg.c                   close_output_stream(graph->outputs[i]->ost);