+ * @GST_STREAM_ERROR_DECRYPT: used when the stream is encrypted and can't be
+ * decrypted because this is not supported by the element.
+ * @GST_STREAM_ERROR_DECRYPT_NOKEY: used when the stream is encrypted and
+ * can't be decrypted because no suitable key is available.
+ * @GST_STREAM_ERROR_NUM_ERRORS: the number of stream error types.