avformat/utils: Move ff_format_io_close.* to options.c, avformat.c

These are not pure avio-functions, but auxiliary AVFormatContext
functions.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavformat/avformat.c

@@ -33,6 +33,7 @@
 #include "libavcodec/codec_desc.h"
 #include "libavcodec/packet_internal.h"
 #include "avformat.h"
+#include "avio.h"
 #include "demux.h"
 #include "internal.h"
 
@@ -774,3 +775,16 @@ void ff_format_set_url(AVFormatContext *s, char *url)
     av_freep(&s->url);
     s->url = url;
 }
+
+int ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
+{
+    int ret = 0;
+    if (*pb) {
+        if (s->io_close == ff_format_io_close_default || s->io_close == NULL)
+            ret = s->io_close2(s, *pb);
+        else
+            s->io_close(s, *pb);
+    }
+    *pb = NULL;
+    return ret;
+}

libavformat/options.c

@@ -151,6 +151,11 @@ static int io_open_default(AVFormatContext *s, AVIOContext **pb,
     return ffio_open_whitelist(pb, url, flags, &s->interrupt_callback, options, s->protocol_whitelist, s->protocol_blacklist);
 }
 
+void ff_format_io_close_default(AVFormatContext *s, AVIOContext *pb)
+{
+    avio_close(pb);
+}
+
 static int io_close2_default(AVFormatContext *s, AVIOContext *pb)
 {
     return avio_close(pb);

libavformat/utils.c

@@ -575,24 +575,6 @@ int avformat_network_deinit(void)
     return 0;
 }
 
-void ff_format_io_close_default(AVFormatContext *s, AVIOContext *pb)
-{
-    avio_close(pb);
-}
-
-int ff_format_io_close(AVFormatContext *s, AVIOContext **pb)
-{
-    int ret = 0;
-    if (*pb) {
-        if (s->io_close == ff_format_io_close_default || s->io_close == NULL)
-            ret = s->io_close2(s, *pb);
-        else
-            s->io_close(s, *pb);
-    }
-    *pb = NULL;
-    return ret;
-}
-
 int ff_is_http_proto(const char *filename) {
     const char *proto = avio_find_protocol_name(filename);
     return proto ? (!av_strcasecmp(proto, "http") || !av_strcasecmp(proto, "https")) : 0;