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Diffstat (limited to 'ffmpeg1/libavformat/rtpproto.c')
-rw-r--r--ffmpeg1/libavformat/rtpproto.c339
1 files changed, 0 insertions, 339 deletions
diff --git a/ffmpeg1/libavformat/rtpproto.c b/ffmpeg1/libavformat/rtpproto.c
deleted file mode 100644
index 62ec4c9..0000000
--- a/ffmpeg1/libavformat/rtpproto.c
+++ /dev/null
@@ -1,339 +0,0 @@
-/*
- * RTP network protocol
- * Copyright (c) 2002 Fabrice Bellard
- *
- * 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 2.1 of the License, or (at your option) any later version.
- *
- * 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 FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * RTP protocol
- */
-
-#include "libavutil/parseutils.h"
-#include "libavutil/avstring.h"
-#include "avformat.h"
-#include "avio_internal.h"
-#include "rtpdec.h"
-#include "url.h"
-
-#include <stdarg.h>
-#include "internal.h"
-#include "network.h"
-#include "os_support.h"
-#include <fcntl.h>
-#if HAVE_POLL_H
-#include <sys/poll.h>
-#endif
-
-typedef struct RTPContext {
- URLContext *rtp_hd, *rtcp_hd;
- int rtp_fd, rtcp_fd;
-} RTPContext;
-
-/**
- * If no filename is given to av_open_input_file because you want to
- * get the local port first, then you must call this function to set
- * the remote server address.
- *
- * @param h media file context
- * @param uri of the remote server
- * @return zero if no error.
- */
-
-int ff_rtp_set_remote_url(URLContext *h, const char *uri)
-{
- RTPContext *s = h->priv_data;
- char hostname[256];
- int port;
-
- char buf[1024];
- char path[1024];
-
- av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port,
- path, sizeof(path), uri);
-
- ff_url_join(buf, sizeof(buf), "udp", NULL, hostname, port, "%s", path);
- ff_udp_set_remote_url(s->rtp_hd, buf);
-
- ff_url_join(buf, sizeof(buf), "udp", NULL, hostname, port + 1, "%s", path);
- ff_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...
- */
-
-static av_printf_format(3, 4) void url_add_option(char *buf, int buf_size, const char *fmt, ...)
-{
- char buf1[1024];
- va_list ap;
-
- va_start(ap, fmt);
- if (strchr(buf, '?'))
- av_strlcat(buf, "&", buf_size);
- else
- av_strlcat(buf, "?", buf_size);
- vsnprintf(buf1, sizeof(buf1), fmt, ap);
- 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 ttl,
- int max_packet_size, int connect)
-{
- 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_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 (connect)
- url_add_option(buf, buf_size, "connect=1");
- url_add_option(buf, buf_size, "fifo_size=0");
-}
-
-/**
- * url syntax: rtp://host:port[?option=val...]
- * 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
- * 'connect=0/1' : do a connect() on the UDP socket
- * 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 = h->priv_data;
- int rtp_port, rtcp_port,
- ttl, connect,
- local_rtp_port, local_rtcp_port, max_packet_size;
- char hostname[256];
- char buf[1024];
- char path[1024];
- const char *p;
-
- av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &rtp_port,
- path, sizeof(path), uri);
- /* extract parameters */
- ttl = -1;
- rtcp_port = rtp_port+1;
- local_rtp_port = -1;
- local_rtcp_port = -1;
- max_packet_size = -1;
- connect = 0;
-
- p = strchr(uri, '?');
- if (p) {
- if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) {
- ttl = strtol(buf, NULL, 10);
- }
- if (av_find_info_tag(buf, sizeof(buf), "rtcpport", p)) {
- rtcp_port = strtol(buf, NULL, 10);
- }
- if (av_find_info_tag(buf, sizeof(buf), "localport", p)) {
- local_rtp_port = strtol(buf, NULL, 10);
- }
- if (av_find_info_tag(buf, sizeof(buf), "localrtpport", p)) {
- local_rtp_port = strtol(buf, NULL, 10);
- }
- if (av_find_info_tag(buf, sizeof(buf), "localrtcpport", p)) {
- local_rtcp_port = strtol(buf, NULL, 10);
- }
- if (av_find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
- max_packet_size = strtol(buf, NULL, 10);
- }
- if (av_find_info_tag(buf, sizeof(buf), "connect", p)) {
- connect = strtol(buf, NULL, 10);
- }
- }
-
- build_udp_url(buf, sizeof(buf),
- hostname, rtp_port, local_rtp_port, ttl, max_packet_size,
- connect);
- if (ffurl_open(&s->rtp_hd, buf, flags, &h->interrupt_callback, NULL) < 0)
- goto fail;
- if (local_rtp_port>=0 && local_rtcp_port<0)
- local_rtcp_port = ff_udp_get_local_port(s->rtp_hd) + 1;
-
- build_udp_url(buf, sizeof(buf),
- hostname, rtcp_port, local_rtcp_port, ttl, max_packet_size,
- connect);
- if (ffurl_open(&s->rtcp_hd, buf, flags, &h->interrupt_callback, NULL) < 0)
- goto fail;
-
- /* just to ease handle access. XXX: need to suppress direct handle
- access */
- s->rtp_fd = ffurl_get_file_handle(s->rtp_hd);
- s->rtcp_fd = ffurl_get_file_handle(s->rtcp_hd);
-
- h->max_packet_size = s->rtp_hd->max_packet_size;
- h->is_streamed = 1;
- return 0;
-
- fail:
- if (s->rtp_hd)
- ffurl_close(s->rtp_hd);
- if (s->rtcp_hd)
- ffurl_close(s->rtcp_hd);
- return AVERROR(EIO);
-}
-
-static int rtp_read(URLContext *h, uint8_t *buf, int size)
-{
- RTPContext *s = h->priv_data;
- struct sockaddr_storage from;
- socklen_t from_len;
- int len, n;
- struct pollfd p[2] = {{s->rtp_fd, POLLIN, 0}, {s->rtcp_fd, POLLIN, 0}};
-
- for(;;) {
- if (ff_check_interrupt(&h->interrupt_callback))
- return AVERROR_EXIT;
- /* build fdset to listen to RTP and RTCP packets */
- n = poll(p, 2, 100);
- if (n > 0) {
- /* first try RTCP */
- if (p[1].revents & POLLIN) {
- from_len = sizeof(from);
- len = recvfrom (s->rtcp_fd, buf, size, 0,
- (struct sockaddr *)&from, &from_len);
- if (len < 0) {
- if (ff_neterrno() == AVERROR(EAGAIN) ||
- ff_neterrno() == AVERROR(EINTR))
- continue;
- return AVERROR(EIO);
- }
- break;
- }
- /* then RTP */
- if (p[0].revents & POLLIN) {
- from_len = sizeof(from);
- len = recvfrom (s->rtp_fd, buf, size, 0,
- (struct sockaddr *)&from, &from_len);
- if (len < 0) {
- if (ff_neterrno() == AVERROR(EAGAIN) ||
- ff_neterrno() == AVERROR(EINTR))
- continue;
- return AVERROR(EIO);
- }
- break;
- }
- } else if (n < 0) {
- if (ff_neterrno() == AVERROR(EINTR))
- continue;
- return AVERROR(EIO);
- }
- }
- return len;
-}
-
-static int rtp_write(URLContext *h, const uint8_t *buf, int size)
-{
- RTPContext *s = h->priv_data;
- int ret;
- URLContext *hd;
-
- if (RTP_PT_IS_RTCP(buf[1])) {
- /* RTCP payload type */
- hd = s->rtcp_hd;
- } else {
- /* RTP payload type */
- hd = s->rtp_hd;
- }
-
- ret = ffurl_write(hd, buf, size);
- return ret;
-}
-
-static int rtp_close(URLContext *h)
-{
- RTPContext *s = h->priv_data;
-
- ffurl_close(s->rtp_hd);
- ffurl_close(s->rtcp_hd);
- return 0;
-}
-
-/**
- * Return the local rtp port used by the RTP connection
- * @param h media file context
- * @return the local port number
- */
-
-int ff_rtp_get_local_rtp_port(URLContext *h)
-{
- RTPContext *s = h->priv_data;
- return ff_udp_get_local_port(s->rtp_hd);
-}
-
-/**
- * Return the local rtcp port used by the RTP connection
- * @param h media file context
- * @return the local port number
- */
-
-int ff_rtp_get_local_rtcp_port(URLContext *h)
-{
- RTPContext *s = h->priv_data;
- return ff_udp_get_local_port(s->rtcp_hd);
-}
-
-static int rtp_get_file_handle(URLContext *h)
-{
- RTPContext *s = h->priv_data;
- return s->rtp_fd;
-}
-
-static int rtp_get_multi_file_handle(URLContext *h, int **handles,
- int *numhandles)
-{
- RTPContext *s = h->priv_data;
- int *hs = *handles = av_malloc(sizeof(**handles) * 2);
- if (!hs)
- return AVERROR(ENOMEM);
- hs[0] = s->rtp_fd;
- hs[1] = s->rtcp_fd;
- *numhandles = 2;
- return 0;
-}
-
-URLProtocol ff_rtp_protocol = {
- .name = "rtp",
- .url_open = rtp_open,
- .url_read = rtp_read,
- .url_write = rtp_write,
- .url_close = rtp_close,
- .url_get_file_handle = rtp_get_file_handle,
- .url_get_multi_file_handle = rtp_get_multi_file_handle,
- .priv_data_size = sizeof(RTPContext),
- .flags = URL_PROTOCOL_FLAG_NETWORK,
-};
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