int av_opt_show(void *obj, void *av_log_obj){
if(!obj)
return -1;
av_log(av_log_obj, AV_LOG_INFO, "%s AVOptions:\n", (*(AVClass**)obj)->class_name);
opt_list(obj, av_log_obj, NULL);
return 0;
}
int main(int argc, char *argv[])
{
opt_t opt;
int retval = 0;
const char *m;
/*
* Initialize.
*/
err_init(xbasename(argv[0])); /* init err package */
/*
* If running setuid, fork a child to handle
* all privileged operations and drop privs in this process.
*/
privsep_init();
/*
* Seed options with default values:
*/
opt_default(&opt, argv[0]);
/*
* Override defaults with environment
*/
opt_env(&opt);
/*
* Process any options that need to be handled early:
*/
opt_args_early(&opt, argc, argv);
/*
* Load static or dynamic pdsh modules
*/
mod_init();
/*
* Allow module directory to be overridden, but not when
* running as root or setuid. (This is mainly for testing...)
*/
if (!(m = getenv ("PDSH_MODULE_DIR")) ||
getuid() == 0 ||
getuid() != geteuid())
m = pdsh_module_dir;
if (mod_load_modules(m, &opt) < 0)
errx("%p: Couldn't load any pdsh modules\n");
/*
* Handle options.
*/
opt_args(&opt, argc, argv); /* override with command line */
if (opt_verify(&opt)) { /* verify options, print errors */
/*
* Do the work.
*/
if (opt.info_only) /* display info only */
opt_list(&opt);
else if (pdsh_personality() == PCP && opt.pcp_server)
retval = (_pcp_remote_server (&opt) < 0);
else if (pdsh_personality() == PCP && opt.pcp_client)
retval = (_pcp_remote_client (&opt) < 0);
else if (pdsh_personality() == PCP || opt.cmd != NULL)
retval = dsh(&opt); /* single dsh/pcp command */
else /* prompt loop */
_interactive_dsh(&opt);
} else {
retval = 1;
}
mod_exit();
/*
* Clean up.
*/
privsep_fini();
opt_free(&opt); /* free heap storage in opt struct */
err_cleanup();
return retval;
}
static void opt_list(void *obj, void *av_log_obj, const char *unit)
{
const AVOption *opt=NULL;
while((opt= av_next_option(obj, opt))){
if(!(opt->flags & (AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM)))
continue;
/* Don't print CONST's on level one.
* Don't print anything but CONST's on level two.
* Only print items from the requested unit.
*/
if (!unit && opt->type==FF_OPT_TYPE_CONST)
continue;
else if (unit && opt->type!=FF_OPT_TYPE_CONST)
continue;
else if (unit && opt->type==FF_OPT_TYPE_CONST && strcmp(unit, opt->unit))
continue;
else if (unit && opt->type == FF_OPT_TYPE_CONST)
av_log(av_log_obj, AV_LOG_INFO, " %-15s ", opt->name);
else
av_log(av_log_obj, AV_LOG_INFO, "-%-17s ", opt->name);
switch( opt->type )
{
case FF_OPT_TYPE_FLAGS:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<flags>" );
break;
case FF_OPT_TYPE_INT:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<int>" );
break;
case FF_OPT_TYPE_INT64:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<int64>" );
break;
case FF_OPT_TYPE_DOUBLE:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<double>" );
break;
case FF_OPT_TYPE_FLOAT:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<float>" );
break;
case FF_OPT_TYPE_STRING:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<string>" );
break;
case FF_OPT_TYPE_RATIONAL:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<rational>" );
break;
case FF_OPT_TYPE_BINARY:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "<binary>" );
break;
case FF_OPT_TYPE_CONST:
default:
av_log( av_log_obj, AV_LOG_INFO, "%-7s ", "" );
break;
}
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_ENCODING_PARAM) ? 'E' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_DECODING_PARAM) ? 'D' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_VIDEO_PARAM ) ? 'V' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_AUDIO_PARAM ) ? 'A' : '.');
av_log(av_log_obj, AV_LOG_INFO, "%c", (opt->flags & AV_OPT_FLAG_SUBTITLE_PARAM) ? 'S' : '.');
if(opt->help)
av_log(av_log_obj, AV_LOG_INFO, " %s", opt->help);
av_log(av_log_obj, AV_LOG_INFO, "\n");
if (opt->unit && opt->type != FF_OPT_TYPE_CONST) {
opt_list(obj, av_log_obj, opt->unit);
}
}
}
