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Code Issues Releases Activity

cmdutils: add show_help_protocol for get protocol options

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Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>
This commit is contained in:
Steven Liu 2019-11-27 13:57:02 +08:00
parent 27529eeb27
commit 6087692a60
2 changed files with 15 additions and 1 deletions
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14
fftools/cmdutils.c
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@ -1870,6 +1870,18 @@ static void show_help_demuxer(const char *name)
show_help_children(fmt->priv_class, AV_OPT_FLAG_DECODING_PARAM);
}
static void show_help_protocol(const char *name)
{
const AVClass *proto_class = avio_protocol_get_class(name);
if (!proto_class) {
av_log(NULL, AV_LOG_ERROR, "Unknown protocol '%s'.\n", name);
return;
}
show_help_children(proto_class, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM);
}
static void show_help_muxer(const char *name)
{
const AVCodecDescriptor *desc;
@ -2000,6 +2012,8 @@ int show_help(void *optctx, const char *opt, const char *arg)
show_help_demuxer(par);
} else if (!strcmp(topic, "muxer")) {
show_help_muxer(par);
} else if (!strcmp(topic, "protocol")) {
show_help_protocol(par);
#if CONFIG_AVFILTER
} else if (!strcmp(topic, "filter")) {
show_help_filter(par);

2
fftools/ffmpeg_opt.c
View File

@ -3194,7 +3194,7 @@ void show_help_default(const char *opt, const char *arg)
" -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"
" -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter/bsf\n"
" -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter/bsf/protocol\n"
" See man %s for detailed description of the options.\n"
"\n", program_name);