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ffmpeg: support dump bit stream filter options.

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Support dump bit stream filter option in ffmpeg -h full and
ffmpeg -h bsf=FooBar.

Signed-off-by: Jun Zhao <mypopydev@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Jun Zhao
2018-03-08 13:50:31 +08:00
committed by Michael Niedermayer
parent 7b5cf0a410
commit a675eed175
2 changed files with 19 additions and 1 deletions
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17
fftools/cmdutils.c
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@@ -1897,6 +1897,21 @@ static void show_help_filter(const char *name)
}
#endif
static void show_help_bsf(const char *name)
{
const AVBitStreamFilter *bsf = av_bsf_get_by_name(name);
if (!bsf) {
av_log(NULL, AV_LOG_ERROR, "Unknown bit stream filter '%s'.\n", name);
return;
}
printf("Bit stream filter %s\n", bsf->name);
if (bsf->priv_class)
show_help_children(bsf->priv_class, AV_OPT_FLAG_BSF_PARAM);
printf("\n");
}
int show_help(void *optctx, const char *opt, const char *arg)
{
char *topic, *par;
@@ -1923,6 +1938,8 @@ int show_help(void *optctx, const char *opt, const char *arg)
} else if (!strcmp(topic, "filter")) {
show_help_filter(par);
#endif
} else if (!strcmp(topic, "bsf")) {
show_help_bsf(par);
} else {
show_help_default(topic, par);
}