libobs: Add video_output_disconnect2()

docs/sphinx/reference-libobs-media-io.rst

@@ -178,6 +178,17 @@ Video Handler
 
 ---------------------
 
+.. function:: bool video_output_disconnect2(video_t *video, void (*callback)(void *param, struct video_data *frame), void *param)
+
+   Disconnects a raw video callback from the video output handler.
+
+   :param video:    Video output handler object
+   :param callback: Callback
+   :param param:    Private data
+   :return:         *true* if callback was removed, *false* otherwise (e.g. already removed)
+
+---------------------
+
 .. function:: const struct video_output_info *video_output_get_info(const video_t *video)
 
    Gets the full video information of the video output handler.

libobs/media-io/video-io.c

@@ -463,9 +463,14 @@ static void log_skipped(video_t *video)
 }
 
 void video_output_disconnect(video_t *video, void (*callback)(void *param, struct video_data *frame), void *param)
+{
+	video_output_disconnect2(video, callback, param);
+}
+
+bool video_output_disconnect2(video_t *video, void (*callback)(void *param, struct video_data *frame), void *param)
 {
 	if (!video || !callback)
-		return;
+		return false;
 
 	video = get_root(video);
 
@@ -485,6 +490,8 @@ void video_output_disconnect(video_t *video, void (*callback)(void *param, struc
 	}
 
 	pthread_mutex_unlock(&video->input_mutex);
+
+	return idx != DARRAY_INVALID;
 }
 
 bool video_output_active(const video_t *video)

libobs/media-io/video-io.h

@@ -305,6 +305,8 @@ EXPORT bool video_output_connect2(video_t *video, const struct video_scale_info
 				  void *param);
 EXPORT void video_output_disconnect(video_t *video, void (*callback)(void *param, struct video_data *frame),
 				    void *param);
+EXPORT bool video_output_disconnect2(video_t *video, void (*callback)(void *param, struct video_data *frame),
+				     void *param);
 
 EXPORT bool video_output_active(const video_t *video);