[FFmpeg-cvslog] lavfi: add outlink helper functions.

[Nicolas George]

ffmpeg | branch: master | Nicolas George <george at nsup.org> | Mon Jul 17 14:34:41 2017 +0200| [ed1c884b9e0d7f63199d5d47350b1fa65374d126] | committer: Nicolas George

lavfi: add outlink helper functions.

These wrappers cost nothing, they make the namespace more
consistent and they will be useful if/when locking becomes
necessary.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ed1c884b9e0d7f63199d5d47350b1fa65374d126
---

 libavfilter/filters.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/libavfilter/filters.h b/libavfilter/filters.h
index 370d99b38b..1cbc18158f 100644
--- a/libavfilter/filters.h
+++ b/libavfilter/filters.h
@@ -26,6 +26,7 @@
  */
 
 #include "avfilter.h"
+#include "internal.h"
 
 /**
  * Special return code when activate() did not do anything.
@@ -139,4 +140,24 @@ int ff_inlink_acknowledge_status(AVFilterLink *link, int *rstatus, int64_t *rpts
  */
 void ff_inlink_request_frame(AVFilterLink *link);
 
+/**
+ * Test if a frame is wanted on an output link.
+ */
+static inline int ff_outlink_frame_wanted(AVFilterLink *link)
+{
+    return link->frame_wanted_out;
+}
+
+/**
+ * Set the status field of a link from the source filter.
+ * The pts should reflect the timestamp of the status change,
+ * in link time base and relative to the frames timeline.
+ * In particular, for AVERROR_EOF, it should reflect the
+ * end time of the last frame.
+ */
+static inline void ff_outlink_set_status(AVFilterLink *link, int status, int64_t pts)
+{
+    ff_avfilter_link_set_in_status(link, status, pts);
+}
+
 #endif /* AVFILTER_FILTERS_H */