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avconv: refactor help printing.

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By default don't dump every single option on the user, but print only
the basic options.

Add -h long/full to print more options.
This commit is contained in:
Anton Khirnov 2012-08-14 08:56:32 +02:00
parent f8b1e66553
commit 6e3857fa8c
1 changed files with 36 additions and 10 deletions
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46
avconv_opt.c
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@ -1791,30 +1791,56 @@ static int opt_filter_complex(const char *opt, const char *arg)
void show_help_default(const char *opt, const char *arg)
{
int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
int show_advanced = 0, show_avoptions = 0;
if (opt) {
if (!strcmp(opt, "long"))
show_advanced = 1;
else if (!strcmp(opt, "full"))
show_advanced = show_avoptions = 1;
else
av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
}
show_usage();
printf("Getting help:\n"
" -h -- print basic options\n"
" -h long -- print more options\n"
" -h full -- print all options (including all format and codec specific options, very long)\n"
" See man %s for detailed description of the options.\n"
"\n", program_name);
show_help_options(options, "Print help / information / capabilities:",
OPT_EXIT, 0);
show_help_options(options, "Main options:",
0, OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
OPT_EXIT);
show_help_options(options, "Advanced options:",
OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE);
if (show_advanced)
show_help_options(options, "Advanced options:",
OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE);
show_help_options(options, "Video options:",
OPT_VIDEO, OPT_EXPERT | OPT_AUDIO);
show_help_options(options, "Advanced Video options:",
OPT_EXPERT | OPT_VIDEO, OPT_AUDIO);
if (show_advanced)
show_help_options(options, "Advanced Video options:",
OPT_EXPERT | OPT_VIDEO, OPT_AUDIO);
show_help_options(options, "Audio options:",
OPT_AUDIO, OPT_EXPERT | OPT_VIDEO);
show_help_options(options, "Advanced Audio options:",
OPT_EXPERT | OPT_AUDIO, OPT_VIDEO);
if (show_advanced)
show_help_options(options, "Advanced Audio options:",
OPT_EXPERT | OPT_AUDIO, OPT_VIDEO);
show_help_options(options, "Subtitle options:",
OPT_SUBTITLE, 0);
printf("\n");
show_help_children(avcodec_get_class(), flags);
show_help_children(avformat_get_class(), flags);
show_help_children(sws_get_class(), flags);
if (show_avoptions) {
int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
show_help_children(avcodec_get_class(), flags);
show_help_children(avformat_get_class(), flags);
show_help_children(sws_get_class(), flags);
}
}
void show_usage(void)