Function show_usage

fftools/ffmpeg_opt.c:1426–1431

}

void show_usage(void)
{
    av_log(NULL, AV_LOG_INFO, "Universal media converter\n");
    av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
    av_log(NULL, AV_LOG_INFO, "\n");
}

enum OptGroup {
    GROUP_OUTFILE,