[vlc-devel] [PATCH] add a way to enable/disable video effects via libvlc

[PaulK]

diff --git a/include/vlc/libvlc_media_player.h
b/include/vlc/libvlc_media_player.h
index a2b5748..266e23c 100644
--- a/include/vlc/libvlc_media_player.h
+++ b/include/vlc/libvlc_media_player.h
@@ -863,6 +863,16 @@ LIBVLC_API void
libvlc_set_fullscreen( libvlc_media_player_t *p_mi, int b_fullsc
 LIBVLC_API int libvlc_get_fullscreen( libvlc_media_player_t *p_mi );
 
 /**
+ * Set (enable/disable) a video filter
+ *
+ * \param p_mi the media player
+ * \param psz_name the filter name
+ * \param b_add boolean for whether the filter is to enable or disable
+ */
+LIBVLC_API void libvlc_set_video_filter( libvlc_media_player_t *p_mi,
const char *psz_name,
+                              bool b_add );
+
+/**
  * Enable or disable key press events handling, according to the LibVLC
hotkeys
  * configuration. By default and for historical reasons, keyboard
events are
  * handled by the LibVLC video widget.
diff --git a/lib/libvlc.sym b/lib/libvlc.sym
index 6582a96..a52330b 100644
--- a/lib/libvlc.sym
+++ b/lib/libvlc.sym
@@ -171,6 +171,7 @@ libvlc_retain
 libvlc_set_fullscreen
 libvlc_set_log_verbosity
 libvlc_set_user_agent
+libvlc_set_video_filter
 libvlc_toggle_fullscreen
 libvlc_toggle_teletext
 libvlc_track_description_release
diff --git a/lib/video.c b/lib/video.c
index 6e1ea06..acc839b 100644
--- a/lib/video.c
+++ b/lib/video.c
@@ -126,6 +126,23 @@ void
libvlc_toggle_fullscreen( libvlc_media_player_t *p_mi )
     free (pp_vouts);
 }
 
+void libvlc_set_video_filter( libvlc_media_player_t *p_mi, const char
*psz_name,
+                              bool b_add )
+{
+    size_t n;
+    vout_thread_t **pp_vouts = GetVouts( p_mi, &n );
+    // Apply the filters to all the vouts
+
+    for (size_t i = 0; i < n; i++)
+    {
+        vout_thread_t *p_vout = pp_vouts[i];
+
+        vout_EnableFilter( p_vout, psz_name, b_add, false );
+        vlc_object_release( p_vout );
+    }
+    free (pp_vouts);
+}
+
 void libvlc_video_set_key_input( libvlc_media_player_t *p_mi, unsigned
on )
 {
     var_SetBool (p_mi, "keyboard-events", !!on);