Structures and functions for RTCP support. BIG FAT WARNING >>>> This code is...

Structures and functions for RTCP support. BIG FAT WARNING >>>> This code is untested <<<< but the request for it is high.

modules/mux/rtp/rtcp.h

+/*****************************************************************************
+ * rtcp.h: RTP/RTCP headerfile
+ *****************************************************************************
+ * Copyright (C) 2005 M2X
+ *
+ * $Id$
+ *
+ * Authors: Jean-Paul Saman <jpsaman #_at_# videolan dot org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+#ifndef _RTCP_H
+#define _RTCP_H 1
+
+/* RTCP packet types */
+#define RTCP_SR     200
+#define RTCP_RR     201
+#define RTCP_SDES   202
+#define RTCP_BYE    203
+#define RTCP_APP    204
+/* End of RTCP packet types */
+
+/* RTCP Info */
+#define RTCP_INFO_CNAME 1
+#define RTCP_INFO_NAME  2
+#define RTCP_INFO_EMAIL 3
+#define RTCP_INFO_PHONE 4
+#define RTCP_INFO_LOC   5
+#define RTCP_INFO_TOOL  6
+#define RTCP_INFO_NOTE  7
+#define RTCP_INFO_PRIV  8
+/* End of RTCP Info */
+
+#define RTCP_HEADER_LEN 3
+
+typedef struct
+{
+    unsigned int u_ssrc;
+    unsigned int ntp_timestampH;
+    unsigned int ntp_timestampL;
+    unsigned int rtp_timestamp;
+    unsigned int u_pkt_count;
+    unsigned int u_octet_count;
+} rtcp_SR;
+
+typedef struct _RTCP_header_RR
+{
+    unsigned int u_ssrc;
+} rtcp_RR;
+
+typedef struct
+{
+    unsigned long u_ssrc;
+    unsigned char u_fract_lost;
+    unsigned char u_pck_lost[3];
+    unsigned int  u_highest_seq_no;
+    unsigned int  u_jitter;
+    unsigned int  u_last_SR;
+    unsigned int  u_delay_last_SR;
+} rtcp_report_block_SR;
+
+typedef struct
+{
+    unsigned int  u_ssrc;
+    unsigned char u_attr_name;
+    unsigned char u_length;
+    char          *p_data;
+} rtcp_SDES;
+
+typedef struct
+{
+    unsigned int  u_ssrc;
+    unsigned char u_length;
+} rtcp_BYE;
+
+typedef struct
+{
+    unsigned char u_length;
+    char          *p_data;
+} rtcp_APP;
+
+/**
+ * structure rtcp_stats_t
+ */
+typedef struct
+{
+    unsigned int  u_RR_received;   /*< RR records received */
+    unsigned int  u_SR_received;   /*< SR records received */
+    unsigned long l_dest_SSRC;     /*< SSRC */
+    unsigned int  u_pkt_count;     /*< count of packets received */
+    unsigned int  u_octet_count;   /*< ? */
+    unsigned int  u_pkt_lost;      /*< count of packets lost */
+    unsigned int  u_fract_lost;    /*< count of fractional packets lost */
+    unsigned int  u_highest_seq_no;/*< highest sequence number found */
+    unsigned int  u_jitter;        /*< jitter calculated */
+    unsigned int  u_last_SR;       /*< last SR record received */
+    unsigned int  u_last_RR;       /*< last RR record received */
+    mtime_t u_delay_since_last_SR; /*< delay since last SR record received */
+    mtime_t u_delay_since_last_RR; /*< delay since last RR record received */
+} rtcp_stats_t;
+
+typedef struct {
+    int fd;                 /*< socket descriptor of rtcp stream */
+
+    unsigned int u_count;        /*< packet count */
+    unsigned int u_version;      /*< RTCP version number */
+    unsigned int u_length;       /*< lenght of packet */
+    unsigned int u_payload_type; /*< type of RTCP payload */
+    rtcp_stats_t stats;          /*< RTCP statistics */
+
+    union {
+        rtcp_SR sr;         /*< SR record */
+        rtcp_RR rr;         /*< RR record */
+        rtcp_SDES sdes;     /*< SDES record */
+        rtcp_BYE bye;       /*< BYE record */
+        rtcp_APP app;       /*< APP record */
+    } report;
+
+    /*int (*pf_connect)( void *p_userdata, char *p_server, int i_port );
+    int (*pf_disconnect)( void *p_userdata );
+    int (*pf_read)( void *p_userdata, uint8_t *p_buffer, int i_buffer );
+    int (*pf_write)( void *p_userdata, uint8_t *p_buffer, int i_buffer );*/
+} rtcp_t;
+
+
+/**
+ * Decode RTCP packet
+ * Decode incoming RTCP packet and inspect the records types.
+ */
+int rtcp_decode( vlc_object_t *p_this, rtcp_t *p_rtcp, block_t *p_block );
+//VLC_EXPORT( int, rtcp_decode, ( rtcp_t *p_rtcp, block_t *p_block ) );
+block_t *rtcp_encode( vlc_object_t *p_this, int type );
+
+#endif /* RTCP_H */

modules/mux/rtp/rtp.h

+/*****************************************************************************
+ * rtp.h: RTP/RTCP headerfile
+ *****************************************************************************
+ * Copyright (C) 2005 M2X
+ *
+ * $Id$
+ *
+ * Authors: Jean-Paul Saman <jpsaman #_at_# videolan dot org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ *****************************************************************************/
+
+#ifndef _RTP_H
+#define _RTP_H 1
+
+#define RTP_HEADER_LEN 12
+#define RTP_SEQ_NUM_SIZE 65536
+
+/*
+ * See RFC 1889 & RFC 2250.
+ */
+typedef struct {
+    int fd;        /*< socket descriptor of rtp stream */
+
+    unsigned int u_version;      /*< rtp version number */
+    unsigned int u_CSRC_count;   /*< CSRC count */
+    unsigned int u_payload_type; /*< type of RTP payload stream */
+    vlc_bool_t   b_extension;    /*< The header is followed by exactly one header extension */
+    unsigned int u_marker;       /*< marker field expect 1 */
+    unsigned int u_seq_no;       /*< sequence number of RTP stream */
+    uint32_t i_timestamp;        /*< timestamp of stream */
+    unsigned int ssrc;           /*< stream number is used here. */
+
+    unsigned int u_ext_length;   /*< lenght of extension field */
+
+    /*int (*pf_connect)( void *p_userdata, char *p_server, int i_port );
+    int (*pf_disconnect)( void *p_userdata );
+    int (*pf_read)( void *p_userdata, uint8_t *p_buffer, int i_buffer );
+    int (*pf_write)( void *p_userdata, uint8_t *p_buffer, int i_buffer );*/
+} rtp_t;
+
+#endif /* RTP_H */