gst_base_transform_handle_buffer 2123 libs/gst/base/gstbasetransform.c   ret = gst_base_transform_handle_buffer (trans, inbuf, buffer);
gst_base_transform_handle_buffer 2169 libs/gst/base/gstbasetransform.c   ret = gst_base_transform_handle_buffer (trans, buffer, &outbuf);