Bug 2381 - Mac: Export to Opus (OggOpus) is not available on Mac - Opus import fails on Mac

lib-src/ffmpeg/libavutil/buffer.h

@@ -248,6 +248,25 @@ typedef struct AVBufferPool AVBufferPool;
  */
 AVBufferPool *av_buffer_pool_init(int size, AVBufferRef* (*alloc)(int size));
 
+/**
+ * Allocate and initialize a buffer pool with a more complex allocator.
+ *
+ * @param size size of each buffer in this pool
+ * @param opaque arbitrary user data used by the allocator
+ * @param alloc a function that will be used to allocate new buffers when the
+ *              pool is empty. May be NULL, then the default allocator will be
+ *              used (av_buffer_alloc()).
+ * @param pool_free a function that will be called immediately before the pool
+ *                  is freed. I.e. after av_buffer_pool_uninit() is called
+ *                  by the caller and all the frames are returned to the pool
+ *                  and freed. It is intended to uninitialize the user opaque
+ *                  data. May be NULL.
+ * @return newly created buffer pool on success, NULL on error.
+ */
+AVBufferPool *av_buffer_pool_init2(int size, void *opaque,
+                                   AVBufferRef* (*alloc)(void *opaque, int size),
+                                   void (*pool_free)(void *opaque));
+
 /**
  * Mark the pool as being available for freeing. It will actually be freed only
  * once all the allocated buffers associated with the pool are released. Thus it
@@ -255,7 +274,6 @@ AVBufferPool *av_buffer_pool_init(int size, AVBufferRef* (*alloc)(int size));
  * in use.
  *
  * @param pool pointer to the pool to be freed. It will be set to NULL.
- * @see av_buffer_pool_can_uninit()
  */
 void av_buffer_pool_uninit(AVBufferPool **pool);
 
@@ -267,6 +285,19 @@ void av_buffer_pool_uninit(AVBufferPool **pool);
  */
 AVBufferRef *av_buffer_pool_get(AVBufferPool *pool);
 
+/**
+ * Query the original opaque parameter of an allocated buffer in the pool.
+ *
+ * @param ref a buffer reference to a buffer returned by av_buffer_pool_get.
+ * @return the opaque parameter set by the buffer allocator function of the
+ *         buffer pool.
+ *
+ * @note the opaque parameter of ref is used by the buffer pool implementation,
+ * therefore you have to use this function to access the original opaque
+ * parameter of an allocated buffer.
+ */
+void *av_buffer_pool_buffer_get_opaque(AVBufferRef *ref);
+
 /**
  * @}
  */