lavu/fifo: add av_fifo_freep function

Function allows to free fifo and reset freed pointer.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/libavutil/fifo.h b/libavutil/fifo.h
index fe7364f427..66fb48a2ed 100644
--- a/libavutil/fifo.h
+++ b/libavutil/fifo.h
@@ -48,6 +48,12 @@ AVFifoBuffer *av_fifo_alloc(unsigned int size);
 void av_fifo_free(AVFifoBuffer *f);
 
 /**
+ * Free an AVFifoBuffer and reset pointer to NULL.
+ * @param f AVFifoBuffer to free
+ */
+void av_fifo_freep(AVFifoBuffer **f);
+
+/**
  * Reset the AVFifoBuffer to the state right after av_fifo_alloc, in particular it is emptied.
  * @param f AVFifoBuffer to reset
  */