--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/spandsp-0.0.6pre17/src/spandsp/private/t38_terminal.h	Fri Jun 25 15:50:58 2010 +0200
@@ -0,0 +1,120 @@
+/*
+ * SpanDSP - a series of DSP components for telephony
+ *
+ * private/t38_terminal.h - T.38 termination, less the packet exchange part
+ *
+ * Written by Steve Underwood <steveu@coppice.org>
+ *
+ * Copyright (C) 2005 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_terminal.h,v 1.2 2008/12/31 13:57:13 steveu Exp $
+ */
+
+/*! \file */
+
+#if !defined(_SPANDSP_PRIVATE_T38_TERMINAL_H_)
+#define _SPANDSP_PRIVATE_T38_TERMINAL_H_
+
+typedef struct
+{
+    /*! \brief Internet Aware FAX mode bit mask. */
+    int iaf;
+    /*! \brief Required time between T.38 transmissions, in ms. */
+    int ms_per_tx_chunk;
+    /*! \brief Bit fields controlling the way data is packed into chunked for transmission. */
+    int chunking_modes;
+
+    /*! \brief Core T.38 IFP support */
+    t38_core_state_t t38;
+
+    /*! \brief The current transmit step being timed */
+    int timed_step;
+
+    /*! \brief TRUE is there has been some T.38 data missed (i.e. lost packets) in the current
+               reception period. */
+    int rx_data_missing;
+
+    /*! \brief The number of octets to send in each image packet (non-ECM or ECM) at the current
+               rate and the current specified packet interval. */
+    int octets_per_data_packet;
+
+    struct
+    {
+        /*! \brief HDLC receive buffer */
+        uint8_t buf[T38_MAX_HDLC_LEN];
+        /*! \brief The length of the contents of the HDLC receive buffer */
+        int len;
+    } hdlc_rx;
+
+    struct
+    {
+        /*! \brief HDLC transmit buffer */
+        uint8_t buf[T38_MAX_HDLC_LEN];
+        /*! \brief The length of the contents of the HDLC transmit buffer */
+        int len;
+        /*! \brief Current pointer within the contents of the HDLC transmit buffer */
+        int ptr;
+        /*! \brief The number of extra bits in a fully stuffed version of the
+                   contents of the HDLC transmit buffer. This is needed to accurately
+                   estimate the playout time for this frame, through an analogue modem. */
+        int extra_bits;
+    } hdlc_tx;
+
+    /*! \brief Counter for trailing non-ECM bytes, used to flush out the far end's modem. */
+    int non_ecm_trailer_bytes;
+
+    /*! \brief The next T.38 indicator queued for transmission. */
+    int next_tx_indicator;
+    /*! \brief The current T.38 data type being transmitted. */
+    int current_tx_data_type;
+
+    /*! \brief TRUE if a carrier is present. Otherwise FALSE. */
+    int rx_signal_present;
+
+    /*! \brief The current operating mode of the receiver. */
+    int current_rx_type;
+    /*! \brief The current operating mode of the transmitter. */
+    int current_tx_type;
+
+    /*! \brief Current transmission bit rate. */
+    int tx_bit_rate;
+    /*! \brief A "sample" count, used to time events. */
+    int32_t samples;
+    /*! \brief The value for samples at the next transmission point. */
+    int32_t next_tx_samples;
+    /*! \brief The current receive timeout. */
+    int32_t timeout_rx_samples;
+} t38_terminal_front_end_state_t;
+
+/*!
+    T.38 terminal state.
+*/
+struct t38_terminal_state_s
+{
+    /*! \brief The T.30 back-end */
+    t30_state_t t30;
+
+    /*! \brief The T.38 front-end */
+    t38_terminal_front_end_state_t t38_fe;
+
+    /*! \brief Error and flow logging control */
+    logging_state_t logging;
+};
+
+#endif
+/*- End of file ------------------------------------------------------------*/