avio: add (ff)url_get_multi_file_handle() for getting more than one fd

Signed-off-by: Martin Storsjö <martin@martin.st>

1 files changed, 15 insertions, 0 deletions

diff --git a/libavformat/avio.c b/libavformat/avio.c
index 5acaf30e90..45ee86688f 100644
--- a/libavformat/avio.c
+++ b/libavformat/avio.c
@@ -344,6 +344,21 @@ int ffurl_get_file_handle(URLContext *h)
     return h->prot->url_get_file_handle(h);
 }
 
+int ffurl_get_multi_file_handle(URLContext *h, int **handles, int *numhandles)
+{
+    if (!h->prot->url_get_multi_file_handle) {
+        if (!h->prot->url_get_file_handle)
+            return AVERROR(ENOSYS);
+        *handles = av_malloc(sizeof(*handles));
+        if (!*handles)
+            return AVERROR(ENOMEM);
+        *numhandles = 1;
+        *handles[0] = h->prot->url_get_file_handle(h);
+        return 0;
+    }
+    return h->prot->url_get_multi_file_handle(h, handles, numhandles);
+}
+
 int ffurl_shutdown(URLContext *h, int flags)
 {
     if (!h->prot->url_shutdown)