add FF_API_REGISTER_PROTOCOL define to disable the deprecated

register_protocol() function

Originally committed as revision 24840 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/avformat.h

@@ -48,6 +48,9 @@
 #ifndef FF_API_URL_CLASS
 #define FF_API_URL_CLASS     (LIBAVFORMAT_VERSION_MAJOR >= 53)
 #endif
+#ifndef FF_API_REGISTER_PROTOCOL
+#define FF_API_REGISTER_PROTOCOL  (LIBAVFORMAT_VERSION_MAJOR < 53)
+#endif
 
 /**
  * I return the LIBAVFORMAT_VERSION_INT constant.  You got

libavformat/avio.c

@@ -71,7 +71,7 @@ int av_register_protocol2(URLProtocol *protocol, int size)
     return 0;
 }
 
-#if LIBAVFORMAT_VERSION_MAJOR < 53
+#if FF_API_REGISTER_PROTOCOL
 /* The layout of URLProtocol as of when major was bumped to 52 */
 struct URLProtocol_compat {
     const char *name;

libavformat/avio.h

@@ -256,7 +256,7 @@ typedef struct URLProtocol {
     const AVClass *priv_data_class;
 } URLProtocol;
 
-#if LIBAVFORMAT_VERSION_MAJOR < 53
+#if FF_API_REGISTER_PROTOCOL
 extern URLProtocol *first_protocol;
 #endif
 
@@ -269,7 +269,7 @@ extern URLInterruptCB *url_interrupt_cb;
  */
 URLProtocol *av_protocol_next(URLProtocol *p);
 
-#if LIBAVFORMAT_VERSION_MAJOR < 53
+#if FF_API_REGISTER_PROTOCOL
 /**
  * @deprecated Use av_register_protocol() instead.
  */