videout: Add support for disabling chroma keying

And make vo_enable_colorkey() return 0 on success and a negative error
code otherwise.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/videoout.h b/videoout.h
index cf20025..0f4cc4c 100644
--- a/videoout.h
+++ b/videoout.h
@@ -39,7 +39,10 @@ struct videoout *vo_init(const char *devname,
 			 unsigned int buffers,
 			 struct v4l2_pix_format *format);
 void vo_cleanup(struct videoout *vo);
+
 int vo_enable_colorkey(struct videoout *vo, unsigned int val);
+int vo_disable_colorkey(struct videoout *vo);
+
 struct v4l2_buffers_pool *vo_get_pool(struct videoout *vo);
 int vo_dequeue_buffer(struct videoout *vo, struct v4l2_video_buffer *buffer);
 int vo_queue_buffer(struct videoout *vo, struct v4l2_video_buffer *buffer);