Call avformat_network_init/deinit in the programs

Calling the init function will become mandatory at some later
point. By calling it, more heavy network init (such as SSL/TLS
library init) can be done once at startup, instead of implicitly
when used (which could lead to it being done a number of times).
Signed-off-by: Martin Storsjö <martin@martin.st>

avconv.c

@@ -542,6 +542,7 @@ void exit_program(int ret)
 #if CONFIG_AVFILTER
     avfilter_uninit();
 #endif
+    avformat_network_deinit();
 
     if (received_sigterm) {
         av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
@@ -4218,6 +4219,7 @@ int main(int argc, char **argv)
     avfilter_register_all();
 #endif
     av_register_all();
+    avformat_network_init();
 
     avio_set_interrupt_cb(decode_interrupt_cb);
 

avplay.c

@@ -1259,6 +1259,7 @@ static void do_exit(void)
 #if CONFIG_AVFILTER
     avfilter_uninit();
 #endif
+    avformat_network_deinit();
     if (show_status)
         printf("\n");
     SDL_Quit();
@@ -3066,6 +3067,7 @@ int main(int argc, char **argv)
     avfilter_register_all();
 #endif
     av_register_all();
+    avformat_network_init();
 
     init_opts();
 

avprobe.c

@@ -399,6 +399,7 @@ int main(int argc, char **argv)
 
     parse_loglevel(argc, argv, options);
     av_register_all();
+    avformat_network_init();
     init_opts();
 #if CONFIG_AVDEVICE
     avdevice_register_all();
@@ -416,5 +417,7 @@ int main(int argc, char **argv)
 
     ret = probe_file(input_filename);
 
+    avformat_network_deinit();
+
     return ret;
 }

avserver.c

@@ -4670,6 +4670,7 @@ int main(int argc, char **argv)
 
     parse_loglevel(argc, argv, options);
     av_register_all();
+    avformat_network_init();
 
     show_banner();
 

ffmpeg.c

@@ -493,6 +493,7 @@ void exit_program(int ret)
 #if CONFIG_AVFILTER
     avfilter_uninit();
 #endif
+    avformat_network_deinit();
 
     if (received_sigterm) {
         fprintf(stderr,
@@ -4367,6 +4368,7 @@ int main(int argc, char **argv)
     avfilter_register_all();
 #endif
     av_register_all();
+    avformat_network_init();
 
     avio_set_interrupt_cb(decode_interrupt_cb);