@@ -56,6 +56,15 @@ typedef struct {

 AVABufferSinkParams *av_abuffersink_params_alloc(void);

 /**

+ * Set the frame size for an audio buffer sink.

+ *

+ * All calls to av_buffersink_get_buffer_ref will return a buffer with

+ * exactly the specified number of samples, or AVERROR(EAGAIN) if there is

+ * not enough. The last buffer at EOF will be padded with 0.

+ */

+void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size);

+

+/**

  * Tell av_buffersink_get_buffer_ref() to read video/samples buffer

  * reference, but not remove it from the buffer. This is useful if you

  * need only to read a video/samples buffer, without to fetch it.

@@ -125,6 +125,14 @@ static void end_frame(AVFilterLink *inlink)

     }

 }

+void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size)

+{

+    AVFilterLink *inlink = ctx->inputs[0];

+

+    inlink->min_samples = inlink->max_samples =

+    inlink->partial_buf_size = frame_size;

+}

+

 int av_buffersink_get_buffer_ref(AVFilterContext *ctx,

                                   AVFilterBufferRef **bufref, int flags)

 {