From 9f82085243073b6993a0ff7f357d51a3899efb4d Mon Sep 17 00:00:00 2001
From: jp9000 <obs.jim@gmail.com>
Date: Wed, 25 Feb 2015 21:14:11 -0800
Subject: [PATCH] libobs: Add obs_source_enum_filters function

Enumerates filters that are currently present on a source.
---
 libobs/obs-source.c | 16 ++++++++++++++++
 libobs/obs.h        |  4 ++++
 2 files changed, 20 insertions(+)

diff --git a/libobs/obs-source.c b/libobs/obs-source.c
index 25b7cb824..da9fbf8f5 100644
--- a/libobs/obs-source.c
+++ b/libobs/obs-source.c
@@ -2435,3 +2435,19 @@ void obs_source_dec_showing(obs_source_t *source)
 {
 	obs_source_deactivate(source, AUX_VIEW);
 }
+
+void obs_source_enum_filters(obs_source_t *source,
+		obs_source_enum_proc_t callback, void *param)
+{
+	if (!source || !callback)
+		return;
+
+	pthread_mutex_lock(&source->filter_mutex);
+
+	for (size_t i = 0; i < source->filters.num; i++) {
+		struct obs_source *filter = source->filters.array[i];
+		callback(source, filter, param);
+	}
+
+	pthread_mutex_unlock(&source->filter_mutex);
+}
diff --git a/libobs/obs.h b/libobs/obs.h
index e2ca0d8a6..dbf2c9faf 100644
--- a/libobs/obs.h
+++ b/libobs/obs.h
@@ -794,6 +794,10 @@ EXPORT void obs_source_inc_showing(obs_source_t *source);
  */
 EXPORT void obs_source_dec_showing(obs_source_t *source);
 
+/** Enumerates filters assigned to the source */
+EXPORT void obs_source_enum_filters(obs_source_t *source,
+		obs_source_enum_proc_t callback, void *param);
+
 /* ------------------------------------------------------------------------- */
 /* Functions used by sources */