swr: add swr_get_class()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

1 files changed, 8 insertions, 0 deletions

diff --git a/libswresample/swresample.h b/libswresample/swresample.h
index 9bd5b6769d..3a54c8eed9 100644
--- a/libswresample/swresample.h
+++ b/libswresample/swresample.h
@@ -55,6 +55,14 @@ enum SwrDitherType {
 typedef struct SwrContext SwrContext;
 
 /**
+ * Get the AVClass for swrContext. It can be used in combination with
+ * AV_OPT_SEARCH_FAKE_OBJ for examining options.
+ *
+ * @see av_opt_find().
+ */
+const AVClass *swr_get_class(void);
+
+/**
  * Allocate SwrContext.
  *
  * If you use this function you will need to set the parameters (manually or