patch_tcp.diff

diff --git a/modules/highgui/src/cap_ffmpeg_impl.hpp b/modules/highgui/src/cap_ffmpeg_impl.hpp
index 2b18559..9c5fae8 100644
--- a/modules/highgui/src/cap_ffmpeg_impl.hpp
+++ b/modules/highgui/src/cap_ffmpeg_impl.hpp
@@ -45,6 +45,8 @@
 #include <algorithm>
 #include <limits>
 
+#define CALC_FFMPEG_VERSION(a,b,c) ( a<<16 | b<<8 | c )
+
 #if defined _MSC_VER && _MSC_VER >= 1200
 #pragma warning( disable: 4244 4510 4512 4610 )
 #endif
@@ -61,6 +63,10 @@ extern "C" {
 
 #include <libavutil/mathematics.h>
 
+#if LIBAVUTIL_BUILD > CALC_FFMPEG_VERSION(51,11,0)
+  #include <libavutil/opt.h>
+#endif
+
 #ifdef WIN32
   #define HAVE_FFMPEG_SWSCALE 1
   #include <libavcodec/avcodec.h>
@@ -260,6 +266,10 @@ struct CvCapture_FFMPEG
    and so the filename is needed to reopen the file on backward seeking.
 */
     char              * filename;
+
+#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(52, 111, 0)
+    AVDictionary *dict;
+#endif
 };
 
 void CvCapture_FFMPEG::init()
@@ -280,6 +290,10 @@ void CvCapture_FFMPEG::init()
     avcodec = 0;
     frame_number = 0;
     eps_zero = 0.000025;
+
+#if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(52, 111, 0)
+    dict = NULL;
+#endif
 }
 
 
@@ -535,7 +549,9 @@ bool CvCapture_FFMPEG::open( const char* _filename )
     close();
 
 #if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(52, 111, 0)
-    int err = avformat_open_input(&ic, _filename, NULL, NULL);
+    av_dict_set(&dict, "rtsp_transport", "tcp", 0);
+    
+    int err = avformat_open_input(&ic, _filename, NULL, &dict);
 #else
     int err = av_open_input_file(&ic, _filename, NULL, 0, NULL);
 #endif