main: print the compression used by the proto again

Instead of temporarily fix "protocol default" that stood for the
compression selected according to the video protocol return back the
actual compression (that is now selected by vrxtx).

Author: MartinPulec

src/main.cpp

@@ -1382,7 +1382,8 @@ int main(int argc, char *argv[])
                 col() << TBOLD("Audio playback   : ") << opt.audio.recv_cfg << "\n";
                 col() << TBOLD("MTU              : ") << opt.common.mtu << " B\n";
                 col() << TBOLD("Video compression: ")
-                      << IF_NOT_NULL_ELSE(opt.video.compression, "protocol default")
+                      << vrxtx_get_compression(opt.video_protocol,
+                                               opt.video.compression)
                       << "\n";
                 col() << TBOLD("Audio codec      : ")
                       << get_name_to_audio_codec(ac_params.codec) << "\n";

src/video_rxtx.cpp

@@ -72,8 +72,8 @@ using std::shared_ptr;
 using std::ostringstream;
 using std::string;
 
-static const char *
-get_compression(const char *video_protocol, const char *req_compression)
+const char *
+vrxtx_get_compression(const char *video_protocol, const char *req_compression)
 {
         if (req_compression != nullptr) {
                 return req_compression;
@@ -97,7 +97,7 @@ video_rxtx::video_rxtx(const char                *protocol_name,
         module_register(&m_sender_mod, common->parent);
 
         const char *compression =
-            get_compression(protocol_name, params->compression);
+            vrxtx_get_compression(protocol_name, params->compression);
         int ret = compress_init(&m_sender_mod, compression, &m_compression);
         if(ret != 0) {
                 module_done(&m_sender_mod);

src/video_rxtx.hpp

@@ -167,5 +167,8 @@ struct video_rxtx {
         std::atomic<codec_t> m_input_codec{};
 };
 
+const char *vrxtx_get_compression(const char *video_protocol,
+                                  const char *req_compression);
+
 #endif // VIDEO_RXTX_H_