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06d89598fa
These Coverity errors should be fixed (mostly classified as High Impact Outstanding by Coverity): 53922, 53923, 53935, 53938, 53945, 53963, 53974, 53976, 53978, 53979, 53980, 53981, 53982, 53988, 53990, 53991, 53993, 53994, 53995, 53998, 54000, 54002, 54004, 54008, 54010, 54013, 54016, 54018, 54020, 54022, 54024, 54025, 54027, 54028, 54030, 54031, 54032, 54033, 54034, 54035, 54036, 54038, 54039, 54041, 54043, 54047, 54048, 54050, 54053, 54054, 54055, 54056, 54062, 54064, 54065, 54067, 54071, 54072, 54074, 54075, 54076, 54081, 54087, 54088, 54089, 54091, 54093, 54096, 54097, 54103, 54104, 54106, 54109, 54111, 54112, 54114, 54117, 54119, 54120, 54121, 54125, 54126, 54129, 54130, 54132, 54133, 54136, 54137, 54140, 54145, 54146, 54149, 54150, 54151, 54153, 54154, 54156, 54157
261 lines
10 KiB
C
261 lines
10 KiB
C
/*
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* FILE: rtp_callback.c
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* AUTHOR: Colin Perkins <csp@csperkins.org>
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* Ladan Gharai <ladan@isi.edu>
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* Martin Benes <martinbenesh@gmail.com>
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* Lukas Hejtmanek <xhejtman@ics.muni.cz>
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* Petr Holub <hopet@ics.muni.cz>
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* Milos Liska <xliska@fi.muni.cz>
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* Jiri Matela <matela@ics.muni.cz>
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* Dalibor Matura <255899@mail.muni.cz>
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* Ian Wesley-Smith <iwsmith@cct.lsu.edu>
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*
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* Copyright (c) 2005-2010 CESNET z.s.p.o.
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* Copyright (c) 2001-2003 University of Southern California
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* Copyright (c) 2003-2004 University of Glasgow
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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*
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* This product includes software developed by the University of Southern
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* California Information Sciences Institute. This product also includes
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* software developed by CESNET z.s.p.o.
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*
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* 4. Neither the name of the University, Institute, CESNET nor the names of
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* its contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Revision: 1.3.2.2 $
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* $Date: 2010/01/30 20:07:35 $
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*
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*/
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#include "config.h"
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#include "config_unix.h"
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#include "config_win32.h"
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#include "debug.h"
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#include "host.h"
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#include "pdb.h"
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#include "video_display.h"
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#include "video_codec.h"
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#include "ntp.h"
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#include "tv.h"
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#include "rtp/rtp.h"
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#include "rtp/pbuf.h"
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#include "rtp/rtp_callback.h"
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#include "tfrc.h"
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extern char *frame;
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char hdr_buf[100];
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struct msghdr msg;
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struct iovec iov[10];
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extern uint32_t RTT;
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static void process_rr(struct rtp *session, rtp_event * e)
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{
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float fract_lost, tmp;
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uint32_t ntp_sec, ntp_frac, now;
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rtcp_rr *r = (rtcp_rr *) e->data;
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if (e->ssrc == rtp_my_ssrc(session)) {
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/* Filter out loopback reports */
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return;
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}
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if (r->ssrc == rtp_my_ssrc(session)) {
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/* Received a reception quality report for data we are sending. */
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/* */
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/* Check for excessive congestion: exit if it occurs, to protect */
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/* other users of the network. */
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fract_lost = (r->fract_lost * 100.0) / 256.0; /* percentage lost packets */
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if (fract_lost > 20) {
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printf("Receiver 0x%08x reports excessive congestion\n",
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e->ssrc);
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}
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/* Compute network round-trip time: */
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if (r->lsr != 0) {
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ntp64_time(&ntp_sec, &ntp_frac);
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now = ntp64_to_ntp32(ntp_sec, ntp_frac);
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if ((now < r->lsr) || (now - r->lsr < r->dlsr)) {
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/* Packet arrived before it was sent, ignore. This represents */
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/* a bug in the remote: either our timestamp was incorrectly */
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/* echoed back to us, or the remote miscalculated in time for */
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/* which it held the packet. */
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debug_msg("Bogus RTT from 0x%08x ignored\n",
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e->ssrc);
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} else {
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tmp = ((float)(now - r->lsr - r->dlsr)) / 65536.0; /* RTT in seconds */
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RTT = tmp * 1000000; /* RTT in usec */
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}
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debug_msg(" RTT=%d usec\n", RTT);
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}
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}
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}
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static void
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process_sdes(struct pdb *participants, uint32_t ssrc, rtcp_sdes_item * d)
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{
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struct pdb_e *e;
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char *sdes_item;
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e = pdb_get(participants, ssrc);
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if (e == NULL) {
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/* We got an SDES packet for a participant we haven't previously seen. */
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/* This can happen, for example, in a partitioned multicast group. Log */
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/* the event, and add the new participant to the database. */
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debug_msg
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("Added previously unseen participant 0x%08x due to receipt of SDES\n",
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ssrc);
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pdb_add(participants, ssrc);
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e = pdb_get(participants, ssrc);
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}
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sdes_item = calloc(d->length + 1, 1);
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strncpy(sdes_item, d->data, d->length);
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switch (d->type) {
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case RTCP_SDES_END:
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free(sdes_item);
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/* This is the end of the SDES list of a packet. */
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/* Nothing for us to deal with. */
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break;
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case RTCP_SDES_CNAME:
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if (e->sdes_cname != NULL)
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free(e->sdes_cname);
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e->sdes_cname = sdes_item;
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break;
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case RTCP_SDES_NAME:
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if (e->sdes_name != NULL)
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free(e->sdes_name);
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e->sdes_name = sdes_item;
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break;
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case RTCP_SDES_EMAIL:
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if (e->sdes_email != NULL)
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free(e->sdes_email);
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e->sdes_email = sdes_item;
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break;
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case RTCP_SDES_PHONE:
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if (e->sdes_phone != NULL)
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free(e->sdes_phone);
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e->sdes_phone = sdes_item;
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break;
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case RTCP_SDES_LOC:
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if (e->sdes_loc != NULL)
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free(e->sdes_loc);
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e->sdes_loc = sdes_item;
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break;
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case RTCP_SDES_TOOL:
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if (e->sdes_tool != NULL)
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free(e->sdes_tool);
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e->sdes_tool = sdes_item;
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break;
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case RTCP_SDES_NOTE:
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if (e->sdes_note != NULL)
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free(e->sdes_note);
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e->sdes_note = sdes_item;
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break;
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case RTCP_SDES_PRIV:
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free(sdes_item);
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break; /* Ignore private extensions */
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default:
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free(sdes_item);
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debug_msg
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("Ignored unknown SDES item (type=0x%02x) from 0x%08x\n",
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ssrc);
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}
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}
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void rtp_recv_callback(struct rtp *session, rtp_event * e)
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{
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rtcp_app *pckt_app = (rtcp_app *) e->data;
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rtp_packet *pckt_rtp = (rtp_packet *) e->data;
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struct pdb *participants = (struct pdb *)rtp_get_userdata(session);
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struct pdb_e *state = pdb_get(participants, e->ssrc);
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struct timeval curr_time;
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switch (e->type) {
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case RX_RTP:
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gettimeofday(&curr_time, NULL);
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tfrc_recv_data(state->tfrc_state, curr_time, pckt_rtp->seq,
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pckt_rtp->data_len + 40);
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if (pckt_rtp->data_len > 0) { /* Only process packets that contain data... */
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pbuf_insert(state->playout_buffer, pckt_rtp);
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}
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break;
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case RX_TFRC_RX:
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/* compute TCP friendly data rate */
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break;
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case RX_RTCP_START:
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break;
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case RX_RTCP_FINISH:
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break;
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case RX_SR:
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break;
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case RX_RR:
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process_rr(session, e);
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break;
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case RX_RR_EMPTY:
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break;
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case RX_SDES:
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process_sdes(participants, e->ssrc, (rtcp_sdes_item *) e->data);
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break;
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case RX_APP:
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pckt_app = (rtcp_app *) e->data;
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if (strncmp(pckt_app->name, "RTT_", 4) == 0) {
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assert(pckt_app->length == 3);
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assert(pckt_app->subtype == 0);
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gettimeofday(&curr_time, NULL);
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// tfrc_recv_rtt(state->tfrc_state, curr_time, ntohl(*((int *) pckt_app->data)));
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}
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break;
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case RX_BYE:
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break;
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case SOURCE_DELETED:
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{
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struct pdb_e *pdb_item = NULL;
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if(pdb_remove(participants, e->ssrc, &pdb_item) == 0) {
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if (pdb_item->decoder_state_deleter) {
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pdb_item->decoder_state_deleter(pdb_item->decoder_state);
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}
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}
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}
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break;
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case SOURCE_CREATED:
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pdb_add(participants, e->ssrc);
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break;
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case RR_TIMEOUT:
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break;
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default:
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debug_msg("Unknown RTP event (type=%d)\n", e->type);
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}
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}
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