Added new command-line arguments --debug-ffmpeg and --debug-libmv to

be able to see debug prints coming from FFmpeg or libmv independently
of general blender debug messages.

build_files/scons/tools/Blender.py

@@ -332,6 +332,9 @@ def creator(env):
         incs.append('#/extern/libmv')
         defs.append('WITH_LIBMV')
 
+    if env['WITH_BF_FFMPEG']:
+        defs.append('WITH_FFMPEG')
+
     if env['WITH_BF_PYTHON']:
         incs.append('#/source/blender/python')
         defs.append('WITH_PYTHON')

source/blender/blenkernel/BKE_global.h

@@ -107,6 +107,7 @@ typedef struct Global {
 #define G_DEBUG			(1 << 12)
 #define G_SCRIPT_AUTOEXEC (1 << 13)
 #define G_SCRIPT_OVERRIDE_PREF (1 << 14) /* when this flag is set ignore the userprefs */
+#define G_DEBUG_FFMPEG		(1 << 15)
 
 /* #define G_NOFROZEN	(1 << 17) also removed */
 /* #define G_GREASEPENCIL 	(1 << 17)   also removed */

source/blender/blenkernel/intern/blender.c

@@ -281,7 +281,7 @@ static void setup_app_data(bContext *C, BlendFileData *bfd, const char *filepath
 
 	/* special cases, override loaded flags: */
 	if (G.f != bfd->globalf) {
-		const int flags_keep= (G_DEBUG | G_SWAP_EXCHANGE | G_SCRIPT_AUTOEXEC | G_SCRIPT_OVERRIDE_PREF);
+		const int flags_keep= (G_DEBUG | G_DEBUG_FFMPEG | G_SWAP_EXCHANGE | G_SCRIPT_AUTOEXEC | G_SCRIPT_OVERRIDE_PREF);
 		bfd->globalf= (bfd->globalf & ~flags_keep) | (G.f & flags_keep);
 	}
 

source/blender/imbuf/intern/util.c

@@ -231,8 +231,7 @@ void do_init_ffmpeg(void)
 		ffmpeg_init = 1;
 		av_register_all();
 		avdevice_register_all();
-		
-		if ((G.f & G_DEBUG) == 0) {
+		if ((G.f & G_DEBUG_FFMPEG) == 0) {
 			silence_log_ffmpeg(1);
 		}
 		else {

source/creator/CMakeLists.txt

@@ -49,6 +49,10 @@ if(WITH_LIBMV)
 	add_definitions(-DWITH_LIBMV)
 endif()
 
+if(WITH_CODEC_FFMPEG)
+	add_definitions(-DWITH_FFMPEG)
+endif()
+
 if(WITH_PYTHON)
 	blender_include_dirs(../blender/python)
 	add_definitions(-DWITH_PYTHON)

source/creator/creator.c

@@ -247,6 +247,15 @@ static int print_help(int UNUSED(argc), const char **UNUSED(argv), void *data)
 	printf("Misc Options:\n");
 	BLI_argsPrintArgDoc(ba, "--debug");
 	BLI_argsPrintArgDoc(ba, "--debug-fpe");
+
+#ifdef WITH_FFMPEG
+	BLI_argsPrintArgDoc(ba, "--debug-ffmpeg");
+#endif
+
+#ifdef WITH_LIBMV
+	BLI_argsPrintArgDoc(ba, "--debug-libmv");
+#endif
+
 	printf("\n");
 	BLI_argsPrintArgDoc(ba, "--factory-startup");
 	printf("\n");
@@ -359,14 +368,28 @@ static int debug_mode(int UNUSED(argc), const char **UNUSED(argv), void *data)
 	printf("Build: %s %s %s %s\n", build_date, build_time, build_platform, build_type);
 #endif // WITH_BUILDINFO
 
-#ifdef WITH_LIBMV
-	libmv_startDebugLogging();
-#endif
-
 	BLI_argsPrint(data);
 	return 0;
 }
 
+#ifdef WITH_LIBMV
+static int debug_mode_libmv(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	libmv_startDebugLogging();
+
+	return 0;
+}
+#endif
+
+#ifdef WITH_FFMPEG
+static int debug_mode_ffmpeg(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
+{
+	G.f |= G_DEBUG_FFMPEG;
+
+	return 0;
+}
+#endif
+
 static int set_fpe(int UNUSED(argc), const char **UNUSED(argv), void *UNUSED(data))
 {
 #if defined(__linux__) || defined(_WIN32) || defined(OSX_SSE_FPE)
@@ -1079,6 +1102,14 @@ static void setupArguments(bContext *C, bArgs *ba, SYS_SystemHandle *syshandle)
 	BLI_argsAdd(ba, 1, "-d", "--debug", debug_doc, debug_mode, ba);
 	BLI_argsAdd(ba, 1, NULL, "--debug-fpe", "\n\tEnable floating point exceptions", set_fpe, NULL);
 
+#ifdef WITH_FFMPEG
+	BLI_argsAdd(ba, 1, NULL, "--debug-ffmpeg", "\n\tEnable debug messages from FFmpeg library", debug_mode_ffmpeg, NULL);
+#endif
+
+#ifdef WITH_LIBMV
+	BLI_argsAdd(ba, 1, NULL, "--debug-libmv", "\n\tEnable debug messages from libmv library", debug_mode_libmv, NULL);
+#endif
+
 	BLI_argsAdd(ba, 1, NULL, "--factory-startup", "\n\tSkip reading the "STRINGIFY (BLENDER_STARTUP_FILE)" in the users home directory", set_factory_startup, NULL);
 
 	/* TODO, add user env vars? */