Define MOBOT_VERSION = git describe / gcc -dumpmachine

app/src/capture.c

@@ -113,7 +113,7 @@ static bool in_frame_to_png(
   LOGV("Scaling image: %llu", get_timestamp() - start);
 
   av_dict_set(&rgbFrame->metadata,
-              "Software", "scrcpy/" SCRCPY_VERSION, 0);
+              "Software", "scrcpy/" MOBOT_VERSION, 0);
 
   AVCodec *outCodec = avcodec_find_encoder(AV_CODEC_ID_PNG);
   if (!outCodec) {

app/src/main.c

@@ -15,7 +15,7 @@
 
 static void
 print_version(void) {
-    fprintf(stderr, "scrcpy %s (with Mobot extensions)\n\n", SCRCPY_VERSION);
+    fprintf(stderr, "scrcpy %s\nMobot version %s\n\n", SCRCPY_VERSION, MOBOT_VERSION);
 
     fprintf(stderr, "dependencies:\n");
     fprintf(stderr, " - SDL %d.%d.%d\n", SDL_MAJOR_VERSION, SDL_MINOR_VERSION,

mobot.mk

@@ -26,6 +26,9 @@ ifeq ($(OS),Darwin)
 					-Wl,-liconv
 endif
 
+GIT_DESCRIBE := $(shell git describe)
+ARCH := $(shell gcc -dumpmachine)
+
 build-ffmpeg:
 	git clone https://github.com/team-mobot/FFmpeg.git build-ffmpeg
 
@@ -49,6 +52,7 @@ $(AVLIBS): build-ffmpeg
 	make install-libs install-headers
 
 build-app: $(AVLIBS)
+	CFLAGS="-DMOBOT_VERSION='\"$(GIT_DESCRIBE)/$(ARCH)\"'" \
 	LDFLAGS="-Wl,-lm -Wl,-lpthread $(MAC_LDFLAGS)" \
 		meson build-app --buildtype release --strip -Db_lto=true \
 		-Dlocal_libav=$(AVDIR) \