avformat/avio: add avio_protocol_get_class

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Suggested-by: Hendrik Leppkes <h.leppkes@gmail.com>
Suggested-by: Nicolas George <george@nsup.org>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/libavformat/protocols.c b/libavformat/protocols.c
index face5b29b5..29fb99e7fa 100644
--- a/libavformat/protocols.c
+++ b/libavformat/protocols.c
@@ -107,6 +107,16 @@ const char *avio_enum_protocols(void **opaque, int output)
     return avio_enum_protocols(opaque, output);
 }
 
+const AVClass *avio_protocol_get_class(const char *name)
+{
+    int i = 0;
+    for (i = 0; url_protocols[i]; i++) {
+        if (!strcmp(url_protocols[i]->name, name))
+            return url_protocols[i]->priv_data_class;
+    }
+    return NULL;
+}
+
 const URLProtocol **ffurl_get_protocols(const char *whitelist,
                                         const char *blacklist)
 {