printf("ffmpeg version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n");
show_banner();
void show_help(void){    printf("ffmpeg version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n");    printf("usage: ffmpeg [[options] -i input_file]... {[options] outfile}...\n"           "Hyper fast Audio and Video encoder\n");    printf("\n");    show_help_options(options);    exit(1);}