avutil/buffer: add get_opaque

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

libavutil/buffer.c

@@ -125,6 +125,11 @@ int av_buffer_is_writable(const AVBufferRef *buf)
     return avpriv_atomic_int_get(&buf->buffer->refcount) == 1;
 }
 
+void *av_buffer_get_opaque(const AVBufferRef *buf)
+{
+    return buf->buffer->opaque;
+}
+
 int av_buffer_make_writable(AVBufferRef **pbuf)
 {
     AVBufferRef *newbuf, *buf = *pbuf;

libavutil/buffer.h

@@ -122,7 +122,7 @@ AVBufferRef *av_buffer_allocz(int size);
  * @param data   data array
  * @param size   size of data in bytes
  * @param free   a callback for freeing data
- * @param opaque parameter to be passed to free
+ * @param opaque parameter to be got for processing or passed to free
  * @param flags  a combination of AV_BUFFER_FLAG_*
  *
  * @return an AVBufferRef referring to data on success, NULL on failure.
@@ -162,6 +162,11 @@ void av_buffer_unref(AVBufferRef **buf);
  */
 int av_buffer_is_writable(const AVBufferRef *buf);
 
+/**
+ * @return the opaque parameter set by av_buffer_create.
+ */
+void *av_buffer_get_opaque(const AVBufferRef *buf);
+
 /**
  * Create a writable reference from a given buffer reference, avoiding data copy
  * if possible.

libavutil/version.h

@@ -75,8 +75,8 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR  52
-#define LIBAVUTIL_VERSION_MINOR  22
-#define LIBAVUTIL_VERSION_MICRO 101
+#define LIBAVUTIL_VERSION_MINOR  23
+#define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
                                                LIBAVUTIL_VERSION_MINOR, \