lavu/fifo: add av_fifo_alloc_array function

Allows to alloc fifo buffer by passing
number of elements and size of element.

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

1 files changed, 8 insertions, 0 deletions

diff --git a/libavutil/fifo.h b/libavutil/fifo.h
index f0b11094d0..dda7dd2e96 100644
--- a/libavutil/fifo.h
+++ b/libavutil/fifo.h
@@ -42,6 +42,14 @@ typedef struct AVFifoBuffer {
 AVFifoBuffer *av_fifo_alloc(unsigned int size);
 
 /**
+ * Initialize an AVFifoBuffer.
+ * @param nmemb number of elements
+ * @param size  size of the single element
+ * @return AVFifoBuffer or NULL in case of memory allocation failure
+ */
+AVFifoBuffer *av_fifo_alloc_array(size_t nmemb, size_t size);
+
+/**
  * Free an AVFifoBuffer.
  * @param f AVFifoBuffer to free
  */