--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/src/spandsp/private/t38_non_ecm_buffer.h	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,86 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * private/t38_non_ecm_buffer.h - A rate adapting buffer for T.38 non-ECM image
+ *                                and TCF data
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2005, 2006, 2007, 2008 Steve Underwood
+ *
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * $Id: t38_non_ecm_buffer.h,v 1.2.4.1 2009/12/19 06:43:28 steveu Exp $
+ */
+
+#if !defined(_SPANDSP_PRIVATE_T38_NON_ECM_BUFFER_H_)
+#define _SPANDSP_PRIVATE_T38_NON_ECM_BUFFER_H_
+
+/*! \brief A flow controlled non-ECM image data buffer, for buffering T.38 to analogue
+           modem data.
+*/
+struct t38_non_ecm_buffer_state_s
+{
+    /*! \brief Minimum number of bits per row, used when fill bits are being deleted on the
+               link, and restored at the emitting gateway. */
+    int min_bits_per_row;
+
+    /*! \brief non-ECM modem transmit data buffer. */
+    uint8_t data[T38_NON_ECM_TX_BUF_LEN];
+    /*! \brief The current write point in the buffer. */
+    int in_ptr;
+    /*! \brief The current read point in the buffer. */
+    int out_ptr;
+    /*! \brief The location of the most recent EOL marker in the buffer. */
+    int latest_eol_ptr;
+    /*! \brief The number of bits to date in the current row, used when min_row_bits is
+               to be applied. */
+    int row_bits;
+
+    /*! \brief The bit stream entering the buffer, used to detect EOLs */
+    unsigned int bit_stream;
+    /*! \brief The non-ECM flow control fill octet (0xFF before the first data, and 0x00
+               once data has started). */
+    uint8_t flow_control_fill_octet;
+    /*! \brief A code for the phase of input buffering, from initial all ones to completion. */
+    int input_phase;
+    /*! \brief TRUE is the end of non-ECM data indication has been received. */
+    int data_finished;
+    /*! \brief The current octet being transmitted from the buffer. */
+    unsigned int octet;
+    /*! \brief The current bit number in the current non-ECM octet. */
+    int bit_no;
+    /*! \brief TRUE if in image data mode, as opposed to TCF mode. */
+    int image_data_mode;
+
+    /*! \brief The number of octets input to the buffer. */
+    int in_octets;
+    /*! \brief The number of rows input to the buffer. */
+    int in_rows;
+    /*! \brief The number of non-ECM fill octets generated for minimum row bits
+               purposes. */
+    int min_row_bits_fill_octets;
+    /*! \brief The number of octets output from the buffer. */
+    int out_octets;
+    /*! \brief The number of rows output from the buffer. */
+    int out_rows;
+    /*! \brief The number of non-ECM fill octets generated for flow control
+               purposes. */
+    int flow_control_fill_octets;
+};
+
+#endif
+/*- End of file ------------------------------------------------------------*/