ff*: Fix duplicatedly printed version info with -version

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avconv.c

@@ -4392,7 +4392,7 @@ int main(int argc, char **argv)
     av_register_all();
     avformat_network_init();
 
-    show_banner();
+    show_banner(argc, argv, options);
 
     /* parse options */
     parse_options(&o, argc, argv, options, opt_output_file);

cmdutils.c

@@ -582,8 +582,12 @@ static void print_all_libs_info(int flags, int level)
     PRINT_LIB_INFO(postproc, POSTPROC, flags, level);
 }
 
-void show_banner(void)
+void show_banner(int argc, char **argv, const OptionDef *options)
 {
+    int idx = locate_option(argc, argv, options, "version");
+    if (idx)
+        return;
+
     av_log(NULL, AV_LOG_INFO, "%s version " FFMPEG_VERSION ", Copyright (c) %d-%d the FFmpeg developers\n",
            program_name, program_birth_year, this_year);
     av_log(NULL, AV_LOG_INFO, "  built on %s %s with %s %s\n",

cmdutils.h

@@ -245,7 +245,7 @@ void print_error(const char *filename, int err);
  * current version of the repository and of the libav* libraries used by
  * the program.
  */
-void show_banner(void);
+void show_banner(int argc, char **argv, const OptionDef *options);
 
 /**
  * Print the version of the program to stdout. The version message

ffmpeg.c

@@ -4857,7 +4857,7 @@ int main(int argc, char **argv)
     av_register_all();
     avformat_network_init();
 
-    show_banner();
+    show_banner(argc, argv, options);
 
     term_init();
 

ffplay.c

@@ -3165,7 +3165,7 @@ int main(int argc, char **argv)
 
     init_opts();
 
-    show_banner();
+    show_banner(argc, argv, options);
 
     parse_options(NULL, argc, argv, options, opt_input_file);
 

ffprobe.c

@@ -1252,7 +1252,7 @@ int main(int argc, char **argv)
     avdevice_register_all();
 #endif
 
-    show_banner();
+    show_banner(argc, argv, options);
     parse_options(NULL, argc, argv, options, opt_input_file);
 
     if (!input_filename) {

ffserver.c

@@ -4673,7 +4673,7 @@ int main(int argc, char **argv)
     av_register_all();
     avformat_network_init();
 
-    show_banner();
+    show_banner(argc, argv, options);
 
     my_program_name = argv[0];
     my_program_dir = getcwd(0, 0);