/*
* RTP network protocol
- * Copyright (c) 2002 Fabrice Bellard.
+ * Copyright (c) 2002 Fabrice Bellard
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg 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 library; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
+/**
+ * @file libavformat/rtpproto.c
+ * RTP protocol
+ */
+
+#include "libavutil/avstring.h"
#include "avformat.h"
#include <unistd.h>
#include <stdarg.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#ifndef __BEOS__
-# include <arpa/inet.h>
-#else
-# include "barpainet.h"
-#endif
-#include <netdb.h>
+#include "network.h"
+#include "os_support.h"
#include <fcntl.h>
+#if HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
#define RTP_TX_BUF_SIZE (64 * 1024)
#define RTP_RX_BUF_SIZE (128 * 1024)
+#ifdef OMK_FOR_USER
+#include "libavformat_config.h"
+#endif
+
+#ifdef CONFIG_FFMPEG_WITH_FRSH
+#define URL_PROTO "frsh"
+#else
+#define URL_PROTO "udp"
+#endif
+
typedef struct RTPContext {
URLContext *rtp_hd, *rtcp_hd;
int rtp_fd, rtcp_fd;
* @param uri of the remote server
* @return zero if no error.
*/
+
int rtp_set_remote_url(URLContext *h, const char *uri)
{
RTPContext *s = h->priv_data;
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);
+ snprintf(buf, sizeof(buf), URL_PROTO"://%s:%d%s", hostname, port, path);
udp_set_remote_url(s->rtp_hd, buf);
- snprintf(buf, sizeof(buf), "udp://%s:%d%s", hostname, port + 1, path);
+ snprintf(buf, sizeof(buf), URL_PROTO"://%s:%d%s", hostname, port + 1, path);
udp_set_remote_url(s->rtcp_hd, buf);
return 0;
}
-/* add option to url of the form:
- "http://host:port/path?option1=val1&option2=val2... */
+/**
+ * add option to url of the form:
+ * "http://host:port/path?option1=val1&option2=val2...
+ */
+
static void url_add_option(char *buf, int buf_size, const char *fmt, ...)
{
char buf1[1024];
va_start(ap, fmt);
if (strchr(buf, '?'))
- pstrcat(buf, buf_size, "&");
+ av_strlcat(buf, "&", buf_size);
else
- pstrcat(buf, buf_size, "?");
+ av_strlcat(buf, "?", buf_size);
vsnprintf(buf1, sizeof(buf1), fmt, ap);
- pstrcat(buf, buf_size, buf1);
+ av_strlcat(buf, buf1, buf_size);
va_end(ap);
}
static void build_udp_url(char *buf, int buf_size,
const char *hostname, int port,
- int local_port, int multicast, int ttl)
+ int local_port, int ttl,
+ int max_packet_size,
+ const char *label)
{
- snprintf(buf, buf_size, "udp://%s:%d", hostname, port);
+ snprintf(buf, buf_size, URL_PROTO"://%s:%d", hostname, port);
if (local_port >= 0)
url_add_option(buf, buf_size, "localport=%d", local_port);
- if (multicast)
- url_add_option(buf, buf_size, "multicast=1", multicast);
if (ttl >= 0)
url_add_option(buf, buf_size, "ttl=%d", ttl);
+ if (max_packet_size >=0)
+ url_add_option(buf, buf_size, "pkt_size=%d", max_packet_size);
+ if (label)
+ url_add_option(buf, buf_size, "contract_label=%s", label);
}
-/*
+/**
* url syntax: rtp://host:port[?option=val...]
- * option: 'multicast=1' : enable multicast
- * 'ttl=n' : set the ttl value (for multicast only)
+ * 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
*
*/
+
static int rtp_open(URLContext *h, const char *uri, int flags)
{
RTPContext *s;
- int port, is_output, is_multicast, ttl, local_port;
+ int port, is_output, ttl, local_port, max_packet_size;
char hostname[256];
char buf[1024];
char path[1024];
s = av_mallocz(sizeof(RTPContext));
if (!s)
- return -ENOMEM;
+ return AVERROR(ENOMEM);
h->priv_data = s;
url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port,
path, sizeof(path), uri);
/* extract parameters */
- is_multicast = 0;
ttl = -1;
local_port = -1;
+ max_packet_size = -1;
+
p = strchr(uri, '?');
if (p) {
- is_multicast = find_info_tag(buf, sizeof(buf), "multicast", p);
if (find_info_tag(buf, sizeof(buf), "ttl", p)) {
ttl = strtol(buf, NULL, 10);
}
if (find_info_tag(buf, sizeof(buf), "localport", p)) {
local_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, is_multicast, ttl);
+ hostname, port, local_port, ttl, max_packet_size, "RTP");
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 connexion if the port is not even */
+ /* XXX: need to open another connection if the port is not even */
/* well, should suppress localport in path */
build_udp_url(buf, sizeof(buf),
- hostname, port + 1, local_port + 1, is_multicast, ttl);
+ hostname, port + 1, local_port + 1, ttl, max_packet_size, "RTCP");
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;
if (s->rtcp_hd)
url_close(s->rtcp_hd);
av_free(s);
- return AVERROR_IO;
+ return AVERROR(EIO);
}
static int rtp_read(URLContext *h, uint8_t *buf, int size)
len = recvfrom (s->rtp_fd, buf, size, 0,
(struct sockaddr *)&from, &from_len);
if (len < 0) {
- if (errno == EAGAIN || errno == EINTR)
+ if (ff_neterrno() == FF_NETERROR(EAGAIN) ||
+ ff_neterrno() == FF_NETERROR(EINTR))
continue;
- return AVERROR_IO;
+ return AVERROR(EIO);
}
break;
}
len = recvfrom (s->rtcp_fd, buf, size, 0,
(struct sockaddr *)&from, &from_len);
if (len < 0) {
- if (errno == EAGAIN || errno == EINTR)
+ if (ff_neterrno() == FF_NETERROR(EAGAIN) ||
+ ff_neterrno() == FF_NETERROR(EINTR))
continue;
- return AVERROR_IO;
+ return AVERROR(EIO);
}
break;
}
len = recvfrom (s->rtp_fd, buf, size, 0,
(struct sockaddr *)&from, &from_len);
if (len < 0) {
- if (errno == EAGAIN || errno == EINTR)
+ if (ff_neterrno() == FF_NETERROR(EAGAIN) ||
+ ff_neterrno() == FF_NETERROR(EINTR))
continue;
- return AVERROR_IO;
+ return AVERROR(EIO);
}
break;
}
}
/**
- * Return the local port used by the RTP connexion
+ * Return the local port used by the RTP connection
* @param s1 media file context
* @return the local port number
*/
+
int rtp_get_local_port(URLContext *h)
{
RTPContext *s = h->priv_data;
return udp_get_local_port(s->rtp_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.
+ * Return the rtp and rtcp file handles for select() usage to wait for
+ * several RTP streams at the same time.
* @param h media file context
*/
+
void rtp_get_file_handles(URLContext *h, int *prtp_fd, int *prtcp_fd)
{
RTPContext *s = h->priv_data;
*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 / frescor / ffmpeg.git / blobdiff