2 * FRSH prototype streaming system
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * @file libavformat/frsh.c
30 #include "os_support.h"
32 #include <sys/select.h>
37 #include <frsh_core_types.h>
39 long int avformat_frsh_budget, avformat_frsh_period;
48 struct sockaddr_in dest_addr;
51 frsh_send_endpoint_t sepoint;
52 frsh_receive_endpoint_t repoint;
54 frsh_send_endpoint_protocol_info_t send_pinfo;
55 frsh_contract_t contract;
56 frsh_contract_label_t label;
57 frsh_rel_time_t budget, period;
60 #define FRSH_TX_BUF_SIZE 32768
61 #define FRSH_MAX_PKT_SIZE 65536
63 static int frsh_set_url(struct sockaddr_in *addr, const char *hostname, int port)
65 /* set the destination address */
66 if (resolve_host(&addr->sin_addr, hostname) < 0)
68 addr->sin_family = AF_INET;
69 addr->sin_port = htons(port);
71 return sizeof(struct sockaddr_in);
74 static int is_multicast_address(struct sockaddr_in *addr)
80 frsh_output_socket_create(FRSHContext *s)
82 static long int netcont_num = 0;
84 char netcont_name[20];
85 struct sockaddr_in addr;
88 addr.sin_family = AF_INET;
89 addr.sin_addr.s_addr = htonl (INADDR_ANY);
90 addr.sin_port = htons(s->local_port);
91 addr_len = sizeof(addr);
93 /* set params for contract */
94 frsh_network_bytes_to_budget(FRSH_NETPF_FWP, avformat_frsh_budget, &s->budget);
95 s->period = fosa_msec_to_rel_time(avformat_frsh_period);
96 s->send_pinfo.body = NULL;
98 frsh_fd = frsh_send_endpoint_create(FRSH_NETPF_FWP,
99 s->dest_addr.sin_addr.s_addr,
100 ntohs(s->dest_addr.sin_port), s->send_pinfo,
107 /* Contract negotiation */
108 ret = frsh_contract_init(&s->contract);
109 //if (ret) PERROR_AND_EXIT(ret, "frsh_contract_init");
112 ret = frsh_contract_set_basic_params(&s->contract,
117 //if (ret) PERROR_AND_EXIT(ret, "frsh_contract_set_basic_params");
119 snprintf(netcont_name, sizeof(netcont_name), "ffmpeg%02ld", ++netcont_num);
120 ret = frsh_contract_set_resource_and_label(&s->contract,FRSH_RT_NETWORK,
122 s->label[0] ? s->label : netcont_name);
123 //if (ret) PERROR_AND_EXIT(ret, "frsh_contract_set_resource_and_label");
126 ret = frsh_contract_negotiate(&s->contract, &s->vres);
127 //if (ret) PERROR_AND_EXIT(ret, "frsh_contract_negotiate");
130 printf("Send endpoint created\n");
131 frsh_send_endpoint_bind(s->vres, s->sepoint);
132 printf("Send endpoint bounded\n");
134 //fwp_endpoint_get_params(s->sepoint->protocol_info.body, &node,
135 // &port, &attr, &fd);
141 frsh_input_socket_create(FRSHContext *s)
143 frsh_receive_endpoint_protocol_info_t pi = { NULL, 0 };
144 frsh_endpoint_queueing_info_t qi = { .queue_size=0, .queue_policy=FRSH_QRP_OLDEST };
146 return frsh_receive_endpoint_create(FRSH_NETPF_FWP, s->local_port, qi, pi,
152 static int frsh_port(struct sockaddr_in *addr, int len)
154 return ntohs(addr->sin_port);
158 * If no filename is given to av_open_input_file because you want to
159 * get the local port first, then you must call this function to set
160 * the remote server address.
162 * url syntax: frsh://host:port[?option=val...]
163 * option: 'ttl=n' : set the ttl value (for multicast only)
164 * 'localport=n' : set the local port
165 * 'pkt_size=n' : set max packet size
166 * 'reuse=1' : enable reusing the socket
168 * @param s1 media file context
169 * @param uri of the remote server
170 * @return zero if no error.
172 int frsh_set_remote_url(URLContext *h, const char *uri)
174 FRSHContext *s = h->priv_data;
178 url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port, NULL, 0, uri);
180 /* set the destination address */
181 s->dest_addr_len = frsh_set_url(&s->dest_addr, hostname, port);
182 if (s->dest_addr_len < 0) {
185 s->is_multicast = is_multicast_address(&s->dest_addr);
191 * Return the local port used by the FRSH connexion
192 * @param s1 media file context
193 * @return the local port number
195 int frsh_get_local_port(URLContext *h)
197 FRSHContext *s = h->priv_data;
198 return s->local_port;
202 * Return the frsh file handle for select() usage to wait for several RTP
203 * streams at the same time.
204 * @param h media file context
206 #if (LIBAVFORMAT_VERSION_MAJOR >= 53)
209 int frsh_get_file_handle(URLContext *h)
211 FRSHContext *s = h->priv_data;
215 /* put it in FRSH context */
216 /* return non zero if error */
217 static int frsh_open(URLContext *h, const char *uri, int flags)
220 int port, frsh_fd = -1, tmp;
221 FRSHContext *s = NULL;
225 struct sockaddr_in my_addr;
229 h->max_packet_size = 1472;
231 is_output = (flags & URL_WRONLY);
233 if(!ff_network_init())
236 s = av_mallocz(sizeof(FRSHContext));
238 return AVERROR(ENOMEM);
242 s->buffer_size = is_output ? FRSH_TX_BUF_SIZE : FRSH_MAX_PKT_SIZE;
244 p = strchr(uri, '?');
246 s->reuse_socket = find_info_tag(buf, sizeof(buf), "reuse", p);
247 if (find_info_tag(buf, sizeof(buf), "ttl", p)) {
248 s->ttl = strtol(buf, NULL, 10);
250 if (find_info_tag(buf, sizeof(buf), "localport", p)) {
251 s->local_port = strtol(buf, NULL, 10);
253 if (find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
254 h->max_packet_size = strtol(buf, NULL, 10);
256 if (find_info_tag(buf, sizeof(buf), "buffer_size", p)) {
257 s->buffer_size = strtol(buf, NULL, 10);
259 if (!find_info_tag(s->label, sizeof(s->label),
260 "contract_label", p)) {
265 /* fill the dest addr */
266 url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port, NULL, 0, uri);
268 /* XXX: fix url_split */
269 if (hostname[0] == '\0' || hostname[0] == '?') {
270 /* only accepts null hostname if input */
271 if (flags & URL_WRONLY)
274 frsh_set_remote_url(h, uri);
278 frsh_fd = frsh_output_socket_create(s);
280 frsh_fd = frsh_input_socket_create(s);
285 if (setsockopt (frsh_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
288 /* bind to the local address if not multicast or if the multicast
290 /*if (bind_ret < 0 && bind(frsh_fd,(struct sockaddr *)&my_addr, len) < 0)
294 len = sizeof(my_addr);
295 getsockname(frsh_fd, (struct sockaddr *)&my_addr, &len);
296 s->local_port = frsh_port(&my_addr, len);
299 /* limit the tx buf size to limit latency */
300 tmp = s->buffer_size;
301 if (setsockopt(frsh_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
302 av_log(NULL, AV_LOG_ERROR, "setsockopt(SO_SNDBUF): %s\n", strerror(errno));
306 /* set frsh recv buffer size to the largest possible frsh packet size to
307 * avoid losing data on OSes that set this too low by default. */
308 tmp = s->buffer_size;
309 if (setsockopt(frsh_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
310 av_log(NULL, AV_LOG_WARNING, "setsockopt(SO_RECVBUF): %s\n", strerror(errno));
312 /* make the socket non-blocking */
313 ff_socket_nonblock(frsh_fd, 1);
315 s->frsh_fd = frsh_fd;
320 closesocket(frsh_fd);
325 static int frsh_read(URLContext *h, uint8_t *buf, int size)
327 FRSHContext *s = h->priv_data;
331 return frsh_receive_sync(s->repoint, buf, size, &len, &from);
334 static int frsh_write(URLContext *h, uint8_t *buf, int size)
336 FRSHContext *s = h->priv_data;
339 ret = frsh_send_async(s->sepoint, buf, size);
343 static int frsh_close(URLContext *h)
345 FRSHContext *s = h->priv_data;
348 frsh_send_endpoint_unbind(s->sepoint);
349 ret = frsh_contract_cancel(s->vres);
353 URLProtocol frsh_protocol = {
360 .url_get_file_handle = frsh_get_file_handle,