/*
* RTP network protocol
- * Copyright (c) 2002 Fabrice Bellard.
+ * Copyright (c) 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
*
*/
/**
- * @file rtpproto.c
+ * @file
* RTP protocol
*/
#include "libavutil/avstring.h"
#include "avformat.h"
+#include "rtpdec.h"
#include <unistd.h>
#include <stdarg.h>
+#include "internal.h"
#include "network.h"
#include "os_support.h"
#include <fcntl.h>
+#if HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+#include <sys/time.h>
#define RTP_TX_BUF_SIZE (64 * 1024)
#define RTP_RX_BUF_SIZE (128 * 1024)
char buf[1024];
char path[1024];
- url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port,
- path, sizeof(path), uri);
+ av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port,
+ path, sizeof(path), uri);
- snprintf(buf, sizeof(buf), "udp://%s:%d%s", hostname, port, path);
+ ff_url_join(buf, sizeof(buf), "udp", NULL, hostname, port, "%s", path);
udp_set_remote_url(s->rtp_hd, buf);
- snprintf(buf, sizeof(buf), "udp://%s:%d%s", hostname, port + 1, path);
+ ff_url_join(buf, sizeof(buf), "udp", NULL, hostname, port + 1, "%s", path);
udp_set_remote_url(s->rtcp_hd, buf);
return 0;
}
int local_port, int ttl,
int max_packet_size)
{
- snprintf(buf, buf_size, "udp://%s:%d", hostname, port);
+ ff_url_join(buf, buf_size, "udp", NULL, hostname, port, NULL);
if (local_port >= 0)
url_add_option(buf, buf_size, "localport=%d", local_port);
if (ttl >= 0)
/**
* url syntax: rtp://host:port[?option=val...]
- * option: 'ttl=n' : set the ttl value (for multicast only)
- * 'localport=n' : set the local port to n
- * 'pkt_size=n' : set max packet size
+ * option: 'ttl=n' : set the ttl value (for multicast only)
+ * 'rtcpport=n' : set the remote rtcp port to n
+ * 'localrtpport=n' : set the local rtp port to n
+ * 'localrtcpport=n' : set the local rtcp port to n
+ * 'pkt_size=n' : set max packet size
+ * deprecated option:
+ * 'localport=n' : set the local port to n
*
+ * if rtcpport isn't set the rtcp port will be the rtp port + 1
+ * if local rtp port isn't set any available port will be used for the local
+ * rtp and rtcp ports
+ * if the local rtcp port is not set it will be the local rtp port + 1
*/
static int rtp_open(URLContext *h, const char *uri, int flags)
{
RTPContext *s;
- int port, is_output, ttl, local_port, max_packet_size;
+ int rtp_port, rtcp_port,
+ is_output, ttl,
+ local_rtp_port, local_rtcp_port, max_packet_size;
char hostname[256];
char buf[1024];
char path[1024];
return AVERROR(ENOMEM);
h->priv_data = s;
- url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port,
- path, sizeof(path), uri);
+ av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &rtp_port,
+ path, sizeof(path), uri);
/* extract parameters */
ttl = -1;
- local_port = -1;
+ rtcp_port = rtp_port+1;
+ local_rtp_port = -1;
+ local_rtcp_port = -1;
max_packet_size = -1;
p = strchr(uri, '?');
if (find_info_tag(buf, sizeof(buf), "ttl", p)) {
ttl = strtol(buf, NULL, 10);
}
+ if (find_info_tag(buf, sizeof(buf), "rtcpport", p)) {
+ rtcp_port = strtol(buf, NULL, 10);
+ }
if (find_info_tag(buf, sizeof(buf), "localport", p)) {
- local_port = strtol(buf, NULL, 10);
+ local_rtp_port = strtol(buf, NULL, 10);
+ }
+ if (find_info_tag(buf, sizeof(buf), "localrtpport", p)) {
+ local_rtp_port = strtol(buf, NULL, 10);
+ }
+ if (find_info_tag(buf, sizeof(buf), "localrtcpport", p)) {
+ local_rtcp_port = strtol(buf, NULL, 10);
}
if (find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
max_packet_size = strtol(buf, NULL, 10);
}
build_udp_url(buf, sizeof(buf),
- hostname, port, local_port, ttl, max_packet_size);
+ hostname, rtp_port, local_rtp_port, ttl, max_packet_size);
if (url_open(&s->rtp_hd, buf, flags) < 0)
goto fail;
- local_port = udp_get_local_port(s->rtp_hd);
- /* XXX: need to open another connection if the port is not even */
-
- /* well, should suppress localport in path */
+ if (local_rtp_port>=0 && local_rtcp_port<0)
+ local_rtcp_port = udp_get_local_port(s->rtp_hd) + 1;
build_udp_url(buf, sizeof(buf),
- hostname, port + 1, local_port + 1, ttl, max_packet_size);
+ hostname, rtcp_port, local_rtcp_port, ttl, max_packet_size);
if (url_open(&s->rtcp_hd, buf, flags) < 0)
goto fail;
/* just to ease handle access. XXX: need to suppress direct handle
access */
- s->rtp_fd = udp_get_file_handle(s->rtp_hd);
- s->rtcp_fd = udp_get_file_handle(s->rtcp_hd);
+ s->rtp_fd = url_get_file_handle(s->rtp_hd);
+ s->rtcp_fd = url_get_file_handle(s->rtcp_hd);
h->max_packet_size = url_get_max_packet_size(s->rtp_hd);
h->is_streamed = 1;
socklen_t from_len;
int len, fd_max, n;
fd_set rfds;
+ struct timeval tv;
#if 0
for(;;) {
from_len = sizeof(from);
}
#else
for(;;) {
+ if (url_interrupt_cb())
+ return AVERROR(EINTR);
/* build fdset to listen to RTP and RTCP packets */
FD_ZERO(&rfds);
fd_max = s->rtp_fd;
if (s->rtcp_fd > fd_max)
fd_max = s->rtcp_fd;
FD_SET(s->rtcp_fd, &rfds);
- n = select(fd_max + 1, &rfds, NULL, NULL, NULL);
+ tv.tv_sec = 0;
+ tv.tv_usec = 100 * 1000;
+ n = select(fd_max + 1, &rfds, NULL, NULL, &tv);
if (n > 0) {
/* first try RTCP */
if (FD_ISSET(s->rtcp_fd, &rfds)) {
}
break;
}
+ } else if (n < 0) {
+ if (ff_neterrno() == FF_NETERROR(EINTR))
+ continue;
+ return AVERROR(EIO);
}
}
#endif
return len;
}
-static int rtp_write(URLContext *h, uint8_t *buf, int size)
+static int rtp_write(URLContext *h, const uint8_t *buf, int size)
{
RTPContext *s = h->priv_data;
int ret;
}
/**
- * Return the local port used by the RTP connection
+ * Return the local rtp port used by the RTP connection
+ * @param s1 media file context
+ * @return the local port number
+ */
+
+int rtp_get_local_rtp_port(URLContext *h)
+{
+ RTPContext *s = h->priv_data;
+ return udp_get_local_port(s->rtp_hd);
+}
+
+/**
+ * Return the local rtp port used by the RTP connection
* @param s1 media file context
* @return the local port number
*/
return udp_get_local_port(s->rtp_hd);
}
+/**
+ * Return the local rtcp port used by the RTP connection
+ * @param s1 media file context
+ * @return the local port number
+ */
+
+int rtp_get_local_rtcp_port(URLContext *h)
+{
+ RTPContext *s = h->priv_data;
+ return udp_get_local_port(s->rtcp_hd);
+}
+
+#if (LIBAVFORMAT_VERSION_MAJOR <= 52)
/**
* Return the rtp and rtcp file handles for select() usage to wait for
* several RTP streams at the same time.
*prtp_fd = s->rtp_fd;
*prtcp_fd = s->rtcp_fd;
}
+#endif
+
+static int rtp_get_file_handle(URLContext *h)
+{
+ RTPContext *s = h->priv_data;
+ return s->rtp_fd;
+}
URLProtocol rtp_protocol = {
"rtp",
rtp_write,
NULL, /* seek */
rtp_close,
+ .url_get_file_handle = rtp_get_file_handle,
};
projects / ffmpeg / blobdiff