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cmdutils/avtools: simplify show_help() by using av_opt_child_class_next()

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This commit is contained in:
Anton Khirnov
2011-10-04 14:50:00 +02:00
parent 145f741e11
commit 7a6cd9957d
5 changed files with 24 additions and 55 deletions
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44
avconv.c
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@ -3676,11 +3676,7 @@ static void show_usage(void)
static void show_help(void)
{
AVCodec *c;
AVOutputFormat *oformat = NULL;
AVInputFormat *iformat = NULL;
const AVClass *class;
int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
av_log_set_callback(log_callback_help);
show_usage();
show_help_options(options, "Main options:\n",
@ -3707,41 +3703,9 @@ static void show_help(void)
OPT_GRAB,
OPT_GRAB);
printf("\n");
class = avcodec_get_class();
av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
printf("\n");
/* individual codec options */
c = NULL;
while ((c = av_codec_next(c))) {
if (c->priv_class) {
av_opt_show2(&c->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
printf("\n");
}
}
class = avformat_get_class();
av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
printf("\n");
/* individual muxer options */
while ((oformat = av_oformat_next(oformat))) {
if (oformat->priv_class) {
av_opt_show2(&oformat->priv_class, NULL, AV_OPT_FLAG_ENCODING_PARAM, 0);
printf("\n");
}
}
/* individual demuxer options */
while ((iformat = av_iformat_next(iformat))) {
if (iformat->priv_class) {
av_opt_show2(&iformat->priv_class, NULL, AV_OPT_FLAG_DECODING_PARAM, 0);
printf("\n");
}
}
class = sws_get_class();
av_opt_show2(&class, NULL, AV_OPT_FLAG_ENCODING_PARAM|AV_OPT_FLAG_DECODING_PARAM, 0);
show_help_children(avcodec_get_class(), flags);
show_help_children(avformat_get_class(), flags);
show_help_children(sws_get_class(), flags);
}
static int opt_target(OptionsContext *o, const char *opt, const char *arg)