Created attachment 360332 [details] [review]
patch file attached

Hi ,
  
  In gst_alsasink_payload , missed buffer unmap in payload failed case.
  code:
  out = gst_buffer_new_and_alloc (framesize);

    gst_buffer_map (buf, &iinfo, GST_MAP_READ);
    gst_buffer_map (out, &oinfo, GST_MAP_WRITE);

    if (!gst_audio_iec61937_payload (iinfo.data, iinfo.size,
            oinfo.data, oinfo.size, &sink->ringbuffer->spec, G_BIG_ENDIAN)) {
      gst_buffer_unref (out);
      return NULL;
    }

    gst_buffer_unmap (buf, &iinfo);
    gst_buffer_unmap (out, &oinfo);
	
   sol: gst_buffer_unmap added 
  Patch attached. Please review and share feedback.