2 * Multiple format streaming server
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #define HAVE_AV_CONFIG_H
26 #include <sys/ioctl.h>
31 #include <sys/types.h>
32 #include <sys/socket.h>
34 #include <netinet/in.h>
35 #include <arpa/inet.h>
39 #ifdef CONFIG_HAVE_DLFCN
45 /* maximum number of simultaneous HTTP connections */
46 #define HTTP_MAX_CONNECTIONS 2000
49 HTTPSTATE_WAIT_REQUEST,
50 HTTPSTATE_SEND_HEADER,
51 HTTPSTATE_SEND_DATA_HEADER,
52 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
53 HTTPSTATE_SEND_DATA_TRAILER,
54 HTTPSTATE_RECEIVE_DATA,
55 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
56 HTTPSTATE_WAIT, /* wait before sending next packets */
57 HTTPSTATE_WAIT_SHORT, /* short wait for short term
58 bandwidth limitation */
61 RTSPSTATE_WAIT_REQUEST,
65 const char *http_state[] = {
82 #define IOBUFFER_INIT_SIZE 8192
84 /* coef for exponential mean for bitrate estimation in statistics */
87 /* timeouts are in ms */
88 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
89 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
91 #define SYNC_TIMEOUT (10 * 1000)
94 int64_t count1, count2;
98 /* context associated with one connection */
99 typedef struct HTTPContext {
100 enum HTTPState state;
101 int fd; /* socket file descriptor */
102 struct sockaddr_in from_addr; /* origin */
103 struct pollfd *poll_entry; /* used when polling */
105 uint8_t *buffer_ptr, *buffer_end;
107 struct HTTPContext *next;
108 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
112 /* input format handling */
113 AVFormatContext *fmt_in;
114 long start_time; /* In milliseconds - this wraps fairly often */
115 int64_t first_pts; /* initial pts value */
116 int pts_stream_index; /* stream we choose as clock reference */
117 /* output format handling */
118 struct FFStream *stream;
119 /* -1 is invalid stream */
120 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
121 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
123 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
124 int last_packet_sent; /* true if last data packet was sent */
126 DataRateData datarate;
133 int is_packetized; /* if true, the stream is packetized */
134 int packet_stream_index; /* current stream for output in state machine */
136 /* RTSP state specific */
137 uint8_t *pb_buffer; /* XXX: use that in all the code */
139 int seq; /* RTSP sequence number */
141 /* RTP state specific */
142 enum RTSPProtocol rtp_protocol;
143 char session_id[32]; /* session id */
144 AVFormatContext *rtp_ctx[MAX_STREAMS];
145 URLContext *rtp_handles[MAX_STREAMS];
146 /* RTP short term bandwidth limitation */
147 int packet_byte_count;
148 int packet_start_time_us; /* used for short durations (a few
152 static AVFrame dummy_frame;
154 /* each generated stream is described here */
158 STREAM_TYPE_REDIRECT,
161 enum IPAddressAction {
166 typedef struct IPAddressACL {
167 struct IPAddressACL *next;
168 enum IPAddressAction action;
169 /* These are in host order */
170 struct in_addr first;
174 /* description of each stream of the ffserver.conf file */
175 typedef struct FFStream {
176 enum StreamType stream_type;
177 char filename[1024]; /* stream filename */
178 struct FFStream *feed; /* feed we are using (can be null if
183 int prebuffer; /* Number of millseconds early to start */
184 long max_time; /* Number of milliseconds to run */
186 AVStream *streams[MAX_STREAMS];
187 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
188 char feed_filename[1024]; /* file name of the feed storage, or
189 input file name for a stream */
194 pid_t pid; /* Of ffmpeg process */
195 time_t pid_start; /* Of ffmpeg process */
197 struct FFStream *next;
198 int bandwidth; /* bandwidth, in kbits/s */
201 /* multicast specific */
203 struct in_addr multicast_ip;
204 int multicast_port; /* first port used for multicast */
206 int loop; /* if true, send the stream in loops (only meaningful if file) */
209 int feed_opened; /* true if someone is writing to the feed */
210 int is_feed; /* true if it is a feed */
211 int readonly; /* True if writing is prohibited to the file */
213 int64_t bytes_served;
214 int64_t feed_max_size; /* maximum storage size */
215 int64_t feed_write_index; /* current write position in feed (it wraps round) */
216 int64_t feed_size; /* current size of feed */
217 struct FFStream *next_feed;
220 typedef struct FeedData {
221 long long data_count;
222 float avg_frame_size; /* frame size averraged over last frames with exponential mean */
225 struct sockaddr_in my_http_addr;
226 struct sockaddr_in my_rtsp_addr;
228 char logfilename[1024];
229 HTTPContext *first_http_ctx;
230 FFStream *first_feed; /* contains only feeds */
231 FFStream *first_stream; /* contains all streams, including feeds */
233 static void new_connection(int server_fd, int is_rtsp);
234 static void close_connection(HTTPContext *c);
237 static int handle_connection(HTTPContext *c);
238 static int http_parse_request(HTTPContext *c);
239 static int http_send_data(HTTPContext *c);
240 static void compute_stats(HTTPContext *c);
241 static int open_input_stream(HTTPContext *c, const char *info);
242 static int http_start_receive_data(HTTPContext *c);
243 static int http_receive_data(HTTPContext *c);
244 static int compute_send_delay(HTTPContext *c);
247 static int rtsp_parse_request(HTTPContext *c);
248 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
249 static void rtsp_cmd_options(HTTPContext *c, const char *url);
250 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPHeader *h);
251 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h);
252 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h);
253 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h);
256 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
257 struct in_addr my_ip);
260 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
261 FFStream *stream, const char *session_id);
262 static int rtp_new_av_stream(HTTPContext *c,
263 int stream_index, struct sockaddr_in *dest_addr);
265 static const char *my_program_name;
266 static const char *my_program_dir;
268 static int ffserver_debug;
269 static int ffserver_daemon;
270 static int no_launch;
271 static int need_to_start_children;
273 int nb_max_connections;
277 int current_bandwidth;
279 static long cur_time; // Making this global saves on passing it around everywhere
281 static long gettime_ms(void)
285 gettimeofday(&tv,NULL);
286 return (long long)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
289 static FILE *logfile = NULL;
291 static void http_log(const char *fmt, ...)
297 vfprintf(logfile, fmt, ap);
303 static char *ctime1(char *buf2)
311 p = buf2 + strlen(p) - 1;
317 static void log_connection(HTTPContext *c)
324 http_log("%s - - [%s] \"%s %s %s\" %d %lld\n",
325 inet_ntoa(c->from_addr.sin_addr),
326 ctime1(buf2), c->method, c->url,
327 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
330 static void update_datarate(DataRateData *drd, int64_t count)
332 if (!drd->time1 && !drd->count1) {
333 drd->time1 = drd->time2 = cur_time;
334 drd->count1 = drd->count2 = count;
336 if (cur_time - drd->time2 > 5000) {
337 drd->time1 = drd->time2;
338 drd->count1 = drd->count2;
339 drd->time2 = cur_time;
345 /* In bytes per second */
346 static int compute_datarate(DataRateData *drd, int64_t count)
348 if (cur_time == drd->time1)
351 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
354 static int get_longterm_datarate(DataRateData *drd, int64_t count)
356 /* You get the first 3 seconds flat out */
357 if (cur_time - drd->time1 < 3000)
359 return compute_datarate(drd, count);
363 static void start_children(FFStream *feed)
368 for (; feed; feed = feed->next) {
369 if (feed->child_argv && !feed->pid) {
370 feed->pid_start = time(0);
375 fprintf(stderr, "Unable to create children\n");
384 for (i = 3; i < 256; i++) {
388 if (!ffserver_debug) {
389 i = open("/dev/null", O_RDWR);
398 pstrcpy(pathname, sizeof(pathname), my_program_name);
400 slash = strrchr(pathname, '/');
406 strcpy(slash, "ffmpeg");
408 /* This is needed to make relative pathnames work */
409 chdir(my_program_dir);
411 signal(SIGPIPE, SIG_DFL);
413 execvp(pathname, feed->child_argv);
421 /* open a listening socket */
422 static int socket_open_listen(struct sockaddr_in *my_addr)
426 server_fd = socket(AF_INET,SOCK_STREAM,0);
433 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
435 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
437 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
443 if (listen (server_fd, 5) < 0) {
448 fcntl(server_fd, F_SETFL, O_NONBLOCK);
453 /* start all multicast streams */
454 static void start_multicast(void)
459 struct sockaddr_in dest_addr;
460 int default_port, stream_index;
463 for(stream = first_stream; stream != NULL; stream = stream->next) {
464 if (stream->is_multicast) {
465 /* open the RTP connection */
466 snprintf(session_id, sizeof(session_id),
467 "%08x%08x", (int)random(), (int)random());
469 /* choose a port if none given */
470 if (stream->multicast_port == 0) {
471 stream->multicast_port = default_port;
475 dest_addr.sin_family = AF_INET;
476 dest_addr.sin_addr = stream->multicast_ip;
477 dest_addr.sin_port = htons(stream->multicast_port);
479 rtp_c = rtp_new_connection(&dest_addr, stream, session_id);
483 if (open_input_stream(rtp_c, "") < 0) {
484 fprintf(stderr, "Could not open input stream for stream '%s'\n",
489 rtp_c->rtp_protocol = RTSP_PROTOCOL_RTP_UDP_MULTICAST;
491 /* open each RTP stream */
492 for(stream_index = 0; stream_index < stream->nb_streams;
494 dest_addr.sin_port = htons(stream->multicast_port +
496 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr) < 0) {
497 fprintf(stderr, "Could not open output stream '%s/streamid=%d'\n",
498 stream->filename, stream_index);
503 /* change state to send data */
504 rtp_c->state = HTTPSTATE_SEND_DATA;
509 /* main loop of the http server */
510 static int http_server(void)
512 int server_fd, ret, rtsp_server_fd, delay, delay1;
513 struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 2], *poll_entry;
514 HTTPContext *c, *c_next;
516 server_fd = socket_open_listen(&my_http_addr);
520 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
521 if (rtsp_server_fd < 0)
524 http_log("ffserver started.\n");
526 start_children(first_feed);
528 first_http_ctx = NULL;
530 first_http_ctx = NULL;
535 poll_entry = poll_table;
536 poll_entry->fd = server_fd;
537 poll_entry->events = POLLIN;
540 poll_entry->fd = rtsp_server_fd;
541 poll_entry->events = POLLIN;
544 /* wait for events on each HTTP handle */
551 case HTTPSTATE_SEND_HEADER:
552 case RTSPSTATE_SEND_REPLY:
553 c->poll_entry = poll_entry;
555 poll_entry->events = POLLOUT;
558 case HTTPSTATE_SEND_DATA_HEADER:
559 case HTTPSTATE_SEND_DATA:
560 case HTTPSTATE_SEND_DATA_TRAILER:
561 if (!c->is_packetized) {
562 /* for TCP, we output as much as we can (may need to put a limit) */
563 c->poll_entry = poll_entry;
565 poll_entry->events = POLLOUT;
568 /* not strictly correct, but currently cannot add
569 more than one fd in poll entry */
573 case HTTPSTATE_WAIT_REQUEST:
574 case HTTPSTATE_RECEIVE_DATA:
575 case HTTPSTATE_WAIT_FEED:
576 case RTSPSTATE_WAIT_REQUEST:
577 /* need to catch errors */
578 c->poll_entry = poll_entry;
580 poll_entry->events = POLLIN;/* Maybe this will work */
584 c->poll_entry = NULL;
585 delay1 = compute_send_delay(c);
589 case HTTPSTATE_WAIT_SHORT:
590 c->poll_entry = NULL;
591 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
596 c->poll_entry = NULL;
602 /* wait for an event on one connection. We poll at least every
603 second to handle timeouts */
605 ret = poll(poll_table, poll_entry - poll_table, delay);
608 cur_time = gettime_ms();
610 if (need_to_start_children) {
611 need_to_start_children = 0;
612 start_children(first_feed);
615 /* now handle the events */
616 for(c = first_http_ctx; c != NULL; c = c_next) {
618 if (handle_connection(c) < 0) {
619 /* close and free the connection */
625 poll_entry = poll_table;
626 /* new HTTP connection request ? */
627 if (poll_entry->revents & POLLIN) {
628 new_connection(server_fd, 0);
631 /* new RTSP connection request ? */
632 if (poll_entry->revents & POLLIN) {
633 new_connection(rtsp_server_fd, 1);
638 /* start waiting for a new HTTP/RTSP request */
639 static void start_wait_request(HTTPContext *c, int is_rtsp)
641 c->buffer_ptr = c->buffer;
642 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
645 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
646 c->state = RTSPSTATE_WAIT_REQUEST;
648 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
649 c->state = HTTPSTATE_WAIT_REQUEST;
653 static void new_connection(int server_fd, int is_rtsp)
655 struct sockaddr_in from_addr;
657 HTTPContext *c = NULL;
659 len = sizeof(from_addr);
660 fd = accept(server_fd, (struct sockaddr *)&from_addr,
664 fcntl(fd, F_SETFL, O_NONBLOCK);
666 /* XXX: should output a warning page when coming
667 close to the connection limit */
668 if (nb_connections >= nb_max_connections)
671 /* add a new connection */
672 c = av_mallocz(sizeof(HTTPContext));
676 c->next = first_http_ctx;
679 c->poll_entry = NULL;
680 c->from_addr = from_addr;
681 c->buffer_size = IOBUFFER_INIT_SIZE;
682 c->buffer = av_malloc(c->buffer_size);
687 start_wait_request(c, is_rtsp);
699 static void close_connection(HTTPContext *c)
701 HTTPContext **cp, *c1;
703 AVFormatContext *ctx;
707 /* remove connection from list */
708 cp = &first_http_ctx;
709 while ((*cp) != NULL) {
718 /* remove connection associated resources */
722 /* close each frame parser */
723 for(i=0;i<c->fmt_in->nb_streams;i++) {
724 st = c->fmt_in->streams[i];
725 if (st->codec.codec) {
726 avcodec_close(&st->codec);
729 av_close_input_file(c->fmt_in);
732 /* free RTP output streams if any */
735 nb_streams = c->stream->nb_streams;
737 for(i=0;i<nb_streams;i++) {
740 av_write_trailer(ctx);
743 h = c->rtp_handles[i];
751 if (!c->last_packet_sent) {
754 if (url_open_dyn_buf(&ctx->pb) >= 0) {
755 av_write_trailer(ctx);
756 (void) url_close_dyn_buf(&ctx->pb, &c->pb_buffer);
761 for(i=0; i<ctx->nb_streams; i++)
762 av_free(ctx->streams[i]) ;
765 current_bandwidth -= c->stream->bandwidth;
766 av_freep(&c->pb_buffer);
772 static int handle_connection(HTTPContext *c)
777 case HTTPSTATE_WAIT_REQUEST:
778 case RTSPSTATE_WAIT_REQUEST:
780 if ((c->timeout - cur_time) < 0)
782 if (c->poll_entry->revents & (POLLERR | POLLHUP))
785 /* no need to read if no events */
786 if (!(c->poll_entry->revents & POLLIN))
789 len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
791 if (errno != EAGAIN && errno != EINTR)
793 } else if (len == 0) {
796 /* search for end of request. XXX: not fully correct since garbage could come after the end */
798 c->buffer_ptr += len;
800 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
801 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
802 /* request found : parse it and reply */
803 if (c->state == HTTPSTATE_WAIT_REQUEST) {
804 ret = http_parse_request(c);
806 ret = rtsp_parse_request(c);
810 } else if (ptr >= c->buffer_end) {
811 /* request too long: cannot do anything */
817 case HTTPSTATE_SEND_HEADER:
818 if (c->poll_entry->revents & (POLLERR | POLLHUP))
821 /* no need to write if no events */
822 if (!(c->poll_entry->revents & POLLOUT))
824 len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
826 if (errno != EAGAIN && errno != EINTR) {
827 /* error : close connection */
828 av_freep(&c->pb_buffer);
832 c->buffer_ptr += len;
834 c->stream->bytes_served += len;
835 c->data_count += len;
836 if (c->buffer_ptr >= c->buffer_end) {
837 av_freep(&c->pb_buffer);
842 /* all the buffer was sent : synchronize to the incoming stream */
843 c->state = HTTPSTATE_SEND_DATA_HEADER;
844 c->buffer_ptr = c->buffer_end = c->buffer;
849 case HTTPSTATE_SEND_DATA:
850 case HTTPSTATE_SEND_DATA_HEADER:
851 case HTTPSTATE_SEND_DATA_TRAILER:
852 /* for packetized output, we consider we can always write (the
853 input streams sets the speed). It may be better to verify
854 that we do not rely too much on the kernel queues */
855 if (!c->is_packetized) {
856 if (c->poll_entry->revents & (POLLERR | POLLHUP))
859 /* no need to read if no events */
860 if (!(c->poll_entry->revents & POLLOUT))
863 if (http_send_data(c) < 0)
866 case HTTPSTATE_RECEIVE_DATA:
867 /* no need to read if no events */
868 if (c->poll_entry->revents & (POLLERR | POLLHUP))
870 if (!(c->poll_entry->revents & POLLIN))
872 if (http_receive_data(c) < 0)
875 case HTTPSTATE_WAIT_FEED:
876 /* no need to read if no events */
877 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
880 /* nothing to do, we'll be waken up by incoming feed packets */
884 /* if the delay expired, we can send new packets */
885 if (compute_send_delay(c) <= 0)
886 c->state = HTTPSTATE_SEND_DATA;
888 case HTTPSTATE_WAIT_SHORT:
889 /* just return back to send data */
890 c->state = HTTPSTATE_SEND_DATA;
893 case RTSPSTATE_SEND_REPLY:
894 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
895 av_freep(&c->pb_buffer);
898 /* no need to write if no events */
899 if (!(c->poll_entry->revents & POLLOUT))
901 len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
903 if (errno != EAGAIN && errno != EINTR) {
904 /* error : close connection */
905 av_freep(&c->pb_buffer);
909 c->buffer_ptr += len;
910 c->data_count += len;
911 if (c->buffer_ptr >= c->buffer_end) {
912 /* all the buffer was sent : wait for a new request */
913 av_freep(&c->pb_buffer);
914 start_wait_request(c, 1);
918 case HTTPSTATE_READY:
927 static int extract_rates(char *rates, int ratelen, const char *request)
931 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
932 if (strncasecmp(p, "Pragma:", 7) == 0) {
933 const char *q = p + 7;
935 while (*q && *q != '\n' && isspace(*q))
938 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
944 memset(rates, 0xff, ratelen);
947 while (*q && *q != '\n' && *q != ':')
950 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2) {
954 if (stream_no < ratelen && stream_no >= 0) {
955 rates[stream_no] = rate_no;
958 while (*q && *q != '\n' && !isspace(*q))
975 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
978 int best_bitrate = 100000000;
981 for (i = 0; i < feed->nb_streams; i++) {
982 AVCodecContext *feed_codec = &feed->streams[i]->codec;
984 if (feed_codec->codec_id != codec->codec_id ||
985 feed_codec->sample_rate != codec->sample_rate ||
986 feed_codec->width != codec->width ||
987 feed_codec->height != codec->height) {
991 /* Potential stream */
993 /* We want the fastest stream less than bit_rate, or the slowest
994 * faster than bit_rate
997 if (feed_codec->bit_rate <= bit_rate) {
998 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
999 best_bitrate = feed_codec->bit_rate;
1003 if (feed_codec->bit_rate < best_bitrate) {
1004 best_bitrate = feed_codec->bit_rate;
1013 static int modify_current_stream(HTTPContext *c, char *rates)
1016 FFStream *req = c->stream;
1017 int action_required = 0;
1019 /* Not much we can do for a feed */
1023 for (i = 0; i < req->nb_streams; i++) {
1024 AVCodecContext *codec = &req->streams[i]->codec;
1028 c->switch_feed_streams[i] = req->feed_streams[i];
1031 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1034 /* Wants off or slow */
1035 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1037 /* This doesn't work well when it turns off the only stream! */
1038 c->switch_feed_streams[i] = -2;
1039 c->feed_streams[i] = -2;
1044 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1045 action_required = 1;
1048 return action_required;
1052 static void do_switch_stream(HTTPContext *c, int i)
1054 if (c->switch_feed_streams[i] >= 0) {
1056 c->feed_streams[i] = c->switch_feed_streams[i];
1059 /* Now update the stream */
1061 c->switch_feed_streams[i] = -1;
1064 /* XXX: factorize in utils.c ? */
1065 /* XXX: take care with different space meaning */
1066 static void skip_spaces(const char **pp)
1070 while (*p == ' ' || *p == '\t')
1075 static void get_word(char *buf, int buf_size, const char **pp)
1083 while (!isspace(*p) && *p != '\0') {
1084 if ((q - buf) < buf_size - 1)
1093 static int validate_acl(FFStream *stream, HTTPContext *c)
1095 enum IPAddressAction last_action = IP_DENY;
1097 struct in_addr *src = &c->from_addr.sin_addr;
1098 unsigned long src_addr = ntohl(src->s_addr);
1100 for (acl = stream->acl; acl; acl = acl->next) {
1101 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr) {
1102 return (acl->action == IP_ALLOW) ? 1 : 0;
1104 last_action = acl->action;
1107 /* Nothing matched, so return not the last action */
1108 return (last_action == IP_DENY) ? 1 : 0;
1111 /* compute the real filename of a file by matching it without its
1112 extensions to all the stream filenames */
1113 static void compute_real_filename(char *filename, int max_size)
1120 /* compute filename by matching without the file extensions */
1121 pstrcpy(file1, sizeof(file1), filename);
1122 p = strrchr(file1, '.');
1125 for(stream = first_stream; stream != NULL; stream = stream->next) {
1126 pstrcpy(file2, sizeof(file2), stream->filename);
1127 p = strrchr(file2, '.');
1130 if (!strcmp(file1, file2)) {
1131 pstrcpy(filename, max_size, stream->filename);
1146 /* parse http request and prepare header */
1147 static int http_parse_request(HTTPContext *c)
1151 enum RedirType redir_type;
1153 char info[1024], *filename;
1157 const char *mime_type;
1161 char *useragent = 0;
1164 get_word(cmd, sizeof(cmd), (const char **)&p);
1165 pstrcpy(c->method, sizeof(c->method), cmd);
1167 if (!strcmp(cmd, "GET"))
1169 else if (!strcmp(cmd, "POST"))
1174 get_word(url, sizeof(url), (const char **)&p);
1175 pstrcpy(c->url, sizeof(c->url), url);
1177 get_word(protocol, sizeof(protocol), (const char **)&p);
1178 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1181 pstrcpy(c->protocol, sizeof(c->protocol), protocol);
1183 /* find the filename and the optional info string in the request */
1190 pstrcpy(info, sizeof(info), p);
1196 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1197 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1199 if (*useragent && *useragent != '\n' && isspace(*useragent))
1203 p = strchr(p, '\n');
1210 redir_type = REDIR_NONE;
1211 if (match_ext(filename, "asx")) {
1212 redir_type = REDIR_ASX;
1213 filename[strlen(filename)-1] = 'f';
1214 } else if (match_ext(filename, "asf") &&
1215 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1216 /* if this isn't WMP or lookalike, return the redirector file */
1217 redir_type = REDIR_ASF;
1218 } else if (match_ext(filename, "rpm,ram")) {
1219 redir_type = REDIR_RAM;
1220 strcpy(filename + strlen(filename)-2, "m");
1221 } else if (match_ext(filename, "rtsp")) {
1222 redir_type = REDIR_RTSP;
1223 compute_real_filename(filename, sizeof(url) - 1);
1224 } else if (match_ext(filename, "sdp")) {
1225 redir_type = REDIR_SDP;
1226 compute_real_filename(filename, sizeof(url) - 1);
1229 stream = first_stream;
1230 while (stream != NULL) {
1231 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1233 stream = stream->next;
1235 if (stream == NULL) {
1236 sprintf(msg, "File '%s' not found", url);
1241 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1242 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1244 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1245 c->http_error = 301;
1247 q += sprintf(q, "HTTP/1.0 301 Moved\r\n");
1248 q += sprintf(q, "Location: %s\r\n", stream->feed_filename);
1249 q += sprintf(q, "Content-type: text/html\r\n");
1250 q += sprintf(q, "\r\n");
1251 q += sprintf(q, "<html><head><title>Moved</title></head><body>\r\n");
1252 q += sprintf(q, "You should be <a href=\"%s\">redirected</a>.\r\n", stream->feed_filename);
1253 q += sprintf(q, "</body></html>\r\n");
1255 /* prepare output buffer */
1256 c->buffer_ptr = c->buffer;
1258 c->state = HTTPSTATE_SEND_HEADER;
1262 /* If this is WMP, get the rate information */
1263 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1264 if (modify_current_stream(c, ratebuf)) {
1265 for (i = 0; i < sizeof(c->feed_streams) / sizeof(c->feed_streams[0]); i++) {
1266 if (c->switch_feed_streams[i] >= 0)
1267 do_switch_stream(c, i);
1272 if (post == 0 && stream->stream_type == STREAM_TYPE_LIVE) {
1273 current_bandwidth += stream->bandwidth;
1276 if (post == 0 && max_bandwidth < current_bandwidth) {
1277 c->http_error = 200;
1279 q += sprintf(q, "HTTP/1.0 200 Server too busy\r\n");
1280 q += sprintf(q, "Content-type: text/html\r\n");
1281 q += sprintf(q, "\r\n");
1282 q += sprintf(q, "<html><head><title>Too busy</title></head><body>\r\n");
1283 q += sprintf(q, "The server is too busy to serve your request at this time.<p>\r\n");
1284 q += sprintf(q, "The bandwidth being served (including your stream) is %dkbit/sec, and this exceeds the limit of %dkbit/sec\r\n",
1285 current_bandwidth, max_bandwidth);
1286 q += sprintf(q, "</body></html>\r\n");
1288 /* prepare output buffer */
1289 c->buffer_ptr = c->buffer;
1291 c->state = HTTPSTATE_SEND_HEADER;
1295 if (redir_type != REDIR_NONE) {
1298 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1299 if (strncasecmp(p, "Host:", 5) == 0) {
1303 p = strchr(p, '\n');
1314 while (isspace(*hostinfo))
1317 eoh = strchr(hostinfo, '\n');
1319 if (eoh[-1] == '\r')
1322 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1323 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1324 hostbuf[eoh - hostinfo] = 0;
1326 c->http_error = 200;
1328 switch(redir_type) {
1330 q += sprintf(q, "HTTP/1.0 200 ASX Follows\r\n");
1331 q += sprintf(q, "Content-type: video/x-ms-asf\r\n");
1332 q += sprintf(q, "\r\n");
1333 q += sprintf(q, "<ASX Version=\"3\">\r\n");
1334 q += sprintf(q, "<!-- Autogenerated by ffserver -->\r\n");
1335 q += sprintf(q, "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n",
1336 hostbuf, filename, info);
1337 q += sprintf(q, "</ASX>\r\n");
1340 q += sprintf(q, "HTTP/1.0 200 RAM Follows\r\n");
1341 q += sprintf(q, "Content-type: audio/x-pn-realaudio\r\n");
1342 q += sprintf(q, "\r\n");
1343 q += sprintf(q, "# Autogenerated by ffserver\r\n");
1344 q += sprintf(q, "http://%s/%s%s\r\n",
1345 hostbuf, filename, info);
1348 q += sprintf(q, "HTTP/1.0 200 ASF Redirect follows\r\n");
1349 q += sprintf(q, "Content-type: video/x-ms-asf\r\n");
1350 q += sprintf(q, "\r\n");
1351 q += sprintf(q, "[Reference]\r\n");
1352 q += sprintf(q, "Ref1=http://%s/%s%s\r\n",
1353 hostbuf, filename, info);
1357 char hostname[256], *p;
1358 /* extract only hostname */
1359 pstrcpy(hostname, sizeof(hostname), hostbuf);
1360 p = strrchr(hostname, ':');
1363 q += sprintf(q, "HTTP/1.0 200 RTSP Redirect follows\r\n");
1364 /* XXX: incorrect mime type ? */
1365 q += sprintf(q, "Content-type: application/x-rtsp\r\n");
1366 q += sprintf(q, "\r\n");
1367 q += sprintf(q, "rtsp://%s:%d/%s\r\n",
1368 hostname, ntohs(my_rtsp_addr.sin_port),
1375 int sdp_data_size, len;
1376 struct sockaddr_in my_addr;
1378 q += sprintf(q, "HTTP/1.0 200 OK\r\n");
1379 q += sprintf(q, "Content-type: application/sdp\r\n");
1380 q += sprintf(q, "\r\n");
1382 len = sizeof(my_addr);
1383 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1385 /* XXX: should use a dynamic buffer */
1386 sdp_data_size = prepare_sdp_description(stream,
1389 if (sdp_data_size > 0) {
1390 memcpy(q, sdp_data, sdp_data_size);
1402 /* prepare output buffer */
1403 c->buffer_ptr = c->buffer;
1405 c->state = HTTPSTATE_SEND_HEADER;
1411 sprintf(msg, "ASX/RAM file not handled");
1415 stream->conns_served++;
1417 /* XXX: add there authenticate and IP match */
1420 /* if post, it means a feed is being sent */
1421 if (!stream->is_feed) {
1422 /* However it might be a status report from WMP! Lets log the data
1423 * as it might come in handy one day
1428 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1429 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1433 if (strncasecmp(p, "Pragma: client-id=", 18) == 0) {
1434 client_id = strtol(p + 18, 0, 10);
1436 p = strchr(p, '\n');
1444 char *eol = strchr(logline, '\n');
1449 if (eol[-1] == '\r')
1451 http_log("%.*s\n", eol - logline, logline);
1452 c->suppress_log = 1;
1457 http_log("\nGot request:\n%s\n", c->buffer);
1460 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1463 /* Now we have to find the client_id */
1464 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1465 if (wmpc->wmp_client_id == client_id)
1470 if (modify_current_stream(wmpc, ratebuf)) {
1471 wmpc->switch_pending = 1;
1476 sprintf(msg, "POST command not handled");
1480 if (http_start_receive_data(c) < 0) {
1481 sprintf(msg, "could not open feed");
1485 c->state = HTTPSTATE_RECEIVE_DATA;
1490 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0) {
1491 http_log("\nGot request:\n%s\n", c->buffer);
1495 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1498 /* open input stream */
1499 if (open_input_stream(c, info) < 0) {
1500 sprintf(msg, "Input stream corresponding to '%s' not found", url);
1504 /* prepare http header */
1506 q += sprintf(q, "HTTP/1.0 200 OK\r\n");
1507 mime_type = c->stream->fmt->mime_type;
1509 mime_type = "application/x-octet_stream";
1510 q += sprintf(q, "Pragma: no-cache\r\n");
1512 /* for asf, we need extra headers */
1513 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1514 /* Need to allocate a client id */
1516 c->wmp_client_id = random() & 0x7fffffff;
1518 q += sprintf(q, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
1520 q += sprintf(q, "Content-Type: %s\r\n", mime_type);
1521 q += sprintf(q, "\r\n");
1523 /* prepare output buffer */
1525 c->buffer_ptr = c->buffer;
1527 c->state = HTTPSTATE_SEND_HEADER;
1530 c->http_error = 404;
1532 q += sprintf(q, "HTTP/1.0 404 Not Found\r\n");
1533 q += sprintf(q, "Content-type: %s\r\n", "text/html");
1534 q += sprintf(q, "\r\n");
1535 q += sprintf(q, "<HTML>\n");
1536 q += sprintf(q, "<HEAD><TITLE>404 Not Found</TITLE></HEAD>\n");
1537 q += sprintf(q, "<BODY>%s</BODY>\n", msg);
1538 q += sprintf(q, "</HTML>\n");
1540 /* prepare output buffer */
1541 c->buffer_ptr = c->buffer;
1543 c->state = HTTPSTATE_SEND_HEADER;
1547 c->http_error = 200; /* horrible : we use this value to avoid
1548 going to the send data state */
1549 c->state = HTTPSTATE_SEND_HEADER;
1553 static void fmt_bytecount(ByteIOContext *pb, int64_t count)
1555 static const char *suffix = " kMGTP";
1558 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++) {
1561 url_fprintf(pb, "%lld%c", count, *s);
1564 static void compute_stats(HTTPContext *c)
1571 ByteIOContext pb1, *pb = &pb1;
1573 if (url_open_dyn_buf(pb) < 0) {
1574 /* XXX: return an error ? */
1575 c->buffer_ptr = c->buffer;
1576 c->buffer_end = c->buffer;
1580 url_fprintf(pb, "HTTP/1.0 200 OK\r\n");
1581 url_fprintf(pb, "Content-type: %s\r\n", "text/html");
1582 url_fprintf(pb, "Pragma: no-cache\r\n");
1583 url_fprintf(pb, "\r\n");
1585 url_fprintf(pb, "<HEAD><TITLE>FFServer Status</TITLE>\n");
1586 if (c->stream->feed_filename) {
1587 url_fprintf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1589 url_fprintf(pb, "</HEAD>\n<BODY>");
1590 url_fprintf(pb, "<H1>FFServer Status</H1>\n");
1592 url_fprintf(pb, "<H2>Available Streams</H2>\n");
1593 url_fprintf(pb, "<TABLE cellspacing=0 cellpadding=4>\n");
1594 url_fprintf(pb, "<TR><Th valign=top>Path<th align=left>Served<br>Conns<Th><br>bytes<Th valign=top>Format<Th>Bit rate<br>kbits/s<Th align=left>Video<br>kbits/s<th><br>Codec<Th align=left>Audio<br>kbits/s<th><br>Codec<Th align=left valign=top>Feed\n");
1595 stream = first_stream;
1596 while (stream != NULL) {
1597 char sfilename[1024];
1600 if (stream->feed != stream) {
1601 pstrcpy(sfilename, sizeof(sfilename) - 10, stream->filename);
1602 eosf = sfilename + strlen(sfilename);
1603 if (eosf - sfilename >= 4) {
1604 if (strcmp(eosf - 4, ".asf") == 0) {
1605 strcpy(eosf - 4, ".asx");
1606 } else if (strcmp(eosf - 3, ".rm") == 0) {
1607 strcpy(eosf - 3, ".ram");
1608 } else if (stream->fmt == &rtp_mux) {
1609 /* generate a sample RTSP director if
1610 unicast. Generate an SDP redirector if
1612 eosf = strrchr(sfilename, '.');
1614 eosf = sfilename + strlen(sfilename);
1615 if (stream->is_multicast)
1616 strcpy(eosf, ".sdp");
1618 strcpy(eosf, ".rtsp");
1622 url_fprintf(pb, "<TR><TD><A HREF=\"/%s\">%s</A> ",
1623 sfilename, stream->filename);
1624 url_fprintf(pb, "<td align=right> %d <td align=right> ",
1625 stream->conns_served);
1626 fmt_bytecount(pb, stream->bytes_served);
1627 switch(stream->stream_type) {
1628 case STREAM_TYPE_LIVE:
1630 int audio_bit_rate = 0;
1631 int video_bit_rate = 0;
1632 const char *audio_codec_name = "";
1633 const char *video_codec_name = "";
1634 const char *audio_codec_name_extra = "";
1635 const char *video_codec_name_extra = "";
1637 for(i=0;i<stream->nb_streams;i++) {
1638 AVStream *st = stream->streams[i];
1639 AVCodec *codec = avcodec_find_encoder(st->codec.codec_id);
1640 switch(st->codec.codec_type) {
1641 case CODEC_TYPE_AUDIO:
1642 audio_bit_rate += st->codec.bit_rate;
1644 if (*audio_codec_name)
1645 audio_codec_name_extra = "...";
1646 audio_codec_name = codec->name;
1649 case CODEC_TYPE_VIDEO:
1650 video_bit_rate += st->codec.bit_rate;
1652 if (*video_codec_name)
1653 video_codec_name_extra = "...";
1654 video_codec_name = codec->name;
1661 url_fprintf(pb, "<TD align=center> %s <TD align=right> %d <TD align=right> %d <TD> %s %s <TD align=right> %d <TD> %s %s",
1664 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1665 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
1667 url_fprintf(pb, "<TD>%s", stream->feed->filename);
1669 url_fprintf(pb, "<TD>%s", stream->feed_filename);
1671 url_fprintf(pb, "\n");
1675 url_fprintf(pb, "<TD align=center> - <TD align=right> - <TD align=right> - <td><td align=right> - <TD>\n");
1679 stream = stream->next;
1681 url_fprintf(pb, "</TABLE>\n");
1683 stream = first_stream;
1684 while (stream != NULL) {
1685 if (stream->feed == stream) {
1686 url_fprintf(pb, "<h2>Feed %s</h2>", stream->filename);
1688 url_fprintf(pb, "Running as pid %d.\n", stream->pid);
1690 #if defined(linux) && !defined(CONFIG_NOCUTILS)
1695 /* This is somewhat linux specific I guess */
1696 snprintf(ps_cmd, sizeof(ps_cmd),
1697 "ps -o \"%%cpu,cputime\" --no-headers %d",
1700 pid_stat = popen(ps_cmd, "r");
1705 if (fscanf(pid_stat, "%10s %64s", cpuperc,
1707 url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
1715 url_fprintf(pb, "<p>");
1717 url_fprintf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
1719 for (i = 0; i < stream->nb_streams; i++) {
1720 AVStream *st = stream->streams[i];
1721 AVCodec *codec = avcodec_find_encoder(st->codec.codec_id);
1722 const char *type = "unknown";
1723 char parameters[64];
1727 switch(st->codec.codec_type) {
1728 case CODEC_TYPE_AUDIO:
1731 case CODEC_TYPE_VIDEO:
1733 sprintf(parameters, "%dx%d, q=%d-%d, fps=%d", st->codec.width, st->codec.height,
1734 st->codec.qmin, st->codec.qmax, st->codec.frame_rate / st->codec.frame_rate_base);
1739 url_fprintf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
1740 i, type, st->codec.bit_rate/1000, codec ? codec->name : "", parameters);
1742 url_fprintf(pb, "</table>\n");
1745 stream = stream->next;
1751 AVCodecContext *enc;
1755 stream = first_feed;
1756 while (stream != NULL) {
1757 url_fprintf(pb, "<H1>Feed '%s'</H1>\n", stream->filename);
1758 url_fprintf(pb, "<TABLE>\n");
1759 url_fprintf(pb, "<TR><TD>Parameters<TD>Frame count<TD>Size<TD>Avg bitrate (kbits/s)\n");
1760 for(i=0;i<stream->nb_streams;i++) {
1761 AVStream *st = stream->streams[i];
1762 FeedData *fdata = st->priv_data;
1765 avcodec_string(buf, sizeof(buf), enc);
1766 avg = fdata->avg_frame_size * (float)enc->rate * 8.0;
1767 if (enc->codec->type == CODEC_TYPE_AUDIO && enc->frame_size > 0)
1768 avg /= enc->frame_size;
1769 url_fprintf(pb, "<TR><TD>%s <TD> %d <TD> %Ld <TD> %0.1f\n",
1770 buf, enc->frame_number, fdata->data_count, avg / 1000.0);
1772 url_fprintf(pb, "</TABLE>\n");
1773 stream = stream->next_feed;
1778 /* connection status */
1779 url_fprintf(pb, "<H2>Connection Status</H2>\n");
1781 url_fprintf(pb, "Number of connections: %d / %d<BR>\n",
1782 nb_connections, nb_max_connections);
1784 url_fprintf(pb, "Bandwidth in use: %dk / %dk<BR>\n",
1785 current_bandwidth, max_bandwidth);
1787 url_fprintf(pb, "<TABLE>\n");
1788 url_fprintf(pb, "<TR><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
1789 c1 = first_http_ctx;
1791 while (c1 != NULL) {
1797 for (j = 0; j < c1->stream->nb_streams; j++) {
1798 if (!c1->stream->feed) {
1799 bitrate += c1->stream->streams[j]->codec.bit_rate;
1801 if (c1->feed_streams[j] >= 0) {
1802 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec.bit_rate;
1809 p = inet_ntoa(c1->from_addr.sin_addr);
1810 url_fprintf(pb, "<TR><TD><B>%d</B><TD>%s%s<TD>%s<TD>%s<TD>%s<td align=right>",
1812 c1->stream ? c1->stream->filename : "",
1813 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
1816 http_state[c1->state]);
1817 fmt_bytecount(pb, bitrate);
1818 url_fprintf(pb, "<td align=right>");
1819 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
1820 url_fprintf(pb, "<td align=right>");
1821 fmt_bytecount(pb, c1->data_count);
1822 url_fprintf(pb, "\n");
1825 url_fprintf(pb, "</TABLE>\n");
1830 url_fprintf(pb, "<HR size=1 noshade>Generated at %s", p);
1831 url_fprintf(pb, "</BODY>\n</HTML>\n");
1833 len = url_close_dyn_buf(pb, &c->pb_buffer);
1834 c->buffer_ptr = c->pb_buffer;
1835 c->buffer_end = c->pb_buffer + len;
1838 /* check if the parser needs to be opened for stream i */
1839 static void open_parser(AVFormatContext *s, int i)
1841 AVStream *st = s->streams[i];
1844 if (!st->codec.codec) {
1845 codec = avcodec_find_decoder(st->codec.codec_id);
1846 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
1847 st->codec.parse_only = 1;
1848 if (avcodec_open(&st->codec, codec) < 0) {
1849 st->codec.parse_only = 0;
1855 static int open_input_stream(HTTPContext *c, const char *info)
1858 char input_filename[1024];
1863 /* find file name */
1864 if (c->stream->feed) {
1865 strcpy(input_filename, c->stream->feed->feed_filename);
1866 buf_size = FFM_PACKET_SIZE;
1867 /* compute position (absolute time) */
1868 if (find_info_tag(buf, sizeof(buf), "date", info)) {
1869 stream_pos = parse_date(buf, 0);
1870 } else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
1871 int prebuffer = strtol(buf, 0, 10);
1872 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
1874 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
1877 strcpy(input_filename, c->stream->feed_filename);
1879 /* compute position (relative time) */
1880 if (find_info_tag(buf, sizeof(buf), "date", info)) {
1881 stream_pos = parse_date(buf, 1);
1886 if (input_filename[0] == '\0')
1890 { time_t when = stream_pos / 1000000;
1891 http_log("Stream pos = %lld, time=%s", stream_pos, ctime(&when));
1896 if (av_open_input_file(&s, input_filename, NULL, buf_size, NULL) < 0) {
1897 http_log("%s not found", input_filename);
1902 /* open each parser */
1903 for(i=0;i<s->nb_streams;i++)
1906 /* choose stream as clock source (we favorize video stream if
1907 present) for packet sending */
1908 c->pts_stream_index = 0;
1909 for(i=0;i<c->stream->nb_streams;i++) {
1910 if (c->pts_stream_index == 0 &&
1911 c->stream->streams[i]->codec.codec_type == CODEC_TYPE_VIDEO) {
1912 c->pts_stream_index = i;
1916 if (c->fmt_in->iformat->read_seek) {
1917 c->fmt_in->iformat->read_seek(c->fmt_in, stream_pos);
1919 /* set the start time (needed for maxtime and RTP packet timing) */
1920 c->start_time = cur_time;
1921 c->first_pts = AV_NOPTS_VALUE;
1925 /* currently desactivated because the new PTS handling is not
1927 //#define AV_READ_FRAME
1928 #ifdef AV_READ_FRAME
1930 /* XXX: generalize that in ffmpeg for picture/audio/data. Currently
1931 the return packet MUST NOT be freed */
1932 int av_read_frame(AVFormatContext *s, AVPacket *pkt)
1935 int len, ret, old_nb_streams, i;
1937 /* see if remaining frames must be parsed */
1939 if (s->cur_len > 0) {
1940 st = s->streams[s->cur_pkt.stream_index];
1941 len = avcodec_parse_frame(&st->codec, &pkt->data, &pkt->size,
1942 s->cur_ptr, s->cur_len);
1944 /* error: get next packet */
1950 /* init pts counter if not done */
1951 if (st->pts.den == 0) {
1952 switch(st->codec.codec_type) {
1953 case CODEC_TYPE_AUDIO:
1954 st->pts_incr = (int64_t)s->pts_den;
1955 av_frac_init(&st->pts, st->pts.val, 0,
1956 (int64_t)s->pts_num * st->codec.sample_rate);
1958 case CODEC_TYPE_VIDEO:
1959 st->pts_incr = (int64_t)s->pts_den * st->codec.frame_rate_base;
1960 av_frac_init(&st->pts, st->pts.val, 0,
1961 (int64_t)s->pts_num * st->codec.frame_rate);
1968 /* a frame was read: return it */
1969 pkt->pts = st->pts.val;
1971 printf("add pts=%Lx num=%Lx den=%Lx incr=%Lx\n",
1972 st->pts.val, st->pts.num, st->pts.den, st->pts_incr);
1974 switch(st->codec.codec_type) {
1975 case CODEC_TYPE_AUDIO:
1976 av_frac_add(&st->pts, st->pts_incr * st->codec.frame_size);
1978 case CODEC_TYPE_VIDEO:
1979 av_frac_add(&st->pts, st->pts_incr);
1984 pkt->stream_index = s->cur_pkt.stream_index;
1985 /* we use the codec indication because it is
1986 more accurate than the demux flags */
1988 if (st->codec.coded_frame->key_frame)
1989 pkt->flags |= PKT_FLAG_KEY;
1994 /* free previous packet */
1995 av_free_packet(&s->cur_pkt);
1997 old_nb_streams = s->nb_streams;
1998 ret = av_read_packet(s, &s->cur_pkt);
2001 /* open parsers for each new streams */
2002 for(i = old_nb_streams; i < s->nb_streams; i++)
2004 st = s->streams[s->cur_pkt.stream_index];
2006 /* update current pts (XXX: dts handling) from packet, or
2007 use current pts if none given */
2008 if (s->cur_pkt.pts != AV_NOPTS_VALUE) {
2009 av_frac_set(&st->pts, s->cur_pkt.pts);
2011 s->cur_pkt.pts = st->pts.val;
2013 if (!st->codec.codec) {
2014 /* no codec opened: just return the raw packet */
2017 /* no codec opened: just update the pts by considering we
2018 have one frame and free the packet */
2019 if (st->pts.den == 0) {
2020 switch(st->codec.codec_type) {
2021 case CODEC_TYPE_AUDIO:
2022 st->pts_incr = (int64_t)s->pts_den * st->codec.frame_size;
2023 av_frac_init(&st->pts, st->pts.val, 0,
2024 (int64_t)s->pts_num * st->codec.sample_rate);
2026 case CODEC_TYPE_VIDEO:
2027 st->pts_incr = (int64_t)s->pts_den * st->codec.frame_rate_base;
2028 av_frac_init(&st->pts, st->pts.val, 0,
2029 (int64_t)s->pts_num * st->codec.frame_rate);
2035 av_frac_add(&st->pts, st->pts_incr);
2038 s->cur_ptr = s->cur_pkt.data;
2039 s->cur_len = s->cur_pkt.size;
2045 static int compute_send_delay(HTTPContext *c)
2047 int64_t cur_pts, delta_pts, next_pts;
2050 /* compute current pts value from system time */
2051 cur_pts = ((int64_t)(cur_time - c->start_time) * c->fmt_in->pts_den) /
2052 (c->fmt_in->pts_num * 1000LL);
2053 /* compute the delta from the stream we choose as
2054 main clock (we do that to avoid using explicit
2055 buffers to do exact packet reordering for each
2057 /* XXX: really need to fix the number of streams */
2058 if (c->pts_stream_index >= c->fmt_in->nb_streams)
2061 next_pts = c->fmt_in->streams[c->pts_stream_index]->pts.val;
2062 delta_pts = next_pts - cur_pts;
2063 if (delta_pts <= 0) {
2066 delay1 = (delta_pts * 1000 * c->fmt_in->pts_num) / c->fmt_in->pts_den;
2072 /* just fall backs */
2073 static int av_read_frame(AVFormatContext *s, AVPacket *pkt)
2075 return av_read_packet(s, pkt);
2078 static int compute_send_delay(HTTPContext *c)
2080 int datarate = 8 * get_longterm_datarate(&c->datarate, c->data_count);
2082 if (datarate > c->stream->bandwidth * 2000) {
2090 static int http_prepare_data(HTTPContext *c)
2093 AVFormatContext *ctx;
2096 case HTTPSTATE_SEND_DATA_HEADER:
2097 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2098 pstrcpy(c->fmt_ctx.author, sizeof(c->fmt_ctx.author),
2100 pstrcpy(c->fmt_ctx.comment, sizeof(c->fmt_ctx.comment),
2101 c->stream->comment);
2102 pstrcpy(c->fmt_ctx.copyright, sizeof(c->fmt_ctx.copyright),
2103 c->stream->copyright);
2104 pstrcpy(c->fmt_ctx.title, sizeof(c->fmt_ctx.title),
2107 /* open output stream by using specified codecs */
2108 c->fmt_ctx.oformat = c->stream->fmt;
2109 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2110 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
2112 st = av_mallocz(sizeof(AVStream));
2113 c->fmt_ctx.streams[i] = st;
2114 /* if file or feed, then just take streams from FFStream struct */
2115 if (!c->stream->feed ||
2116 c->stream->feed == c->stream)
2117 memcpy(st, c->stream->streams[i], sizeof(AVStream));
2119 memcpy(st, c->stream->feed->streams[c->stream->feed_streams[i]],
2121 st->codec.frame_number = 0; /* XXX: should be done in
2122 AVStream, not in codec */
2123 /* I'm pretty sure that this is not correct...
2124 * However, without it, we crash
2126 st->codec.coded_frame = &dummy_frame;
2128 c->got_key_frame = 0;
2130 /* prepare header and save header data in a stream */
2131 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2132 /* XXX: potential leak */
2135 c->fmt_ctx.pb.is_streamed = 1;
2137 av_set_parameters(&c->fmt_ctx, NULL);
2138 av_write_header(&c->fmt_ctx);
2140 len = url_close_dyn_buf(&c->fmt_ctx.pb, &c->pb_buffer);
2141 c->buffer_ptr = c->pb_buffer;
2142 c->buffer_end = c->pb_buffer + len;
2144 c->state = HTTPSTATE_SEND_DATA;
2145 c->last_packet_sent = 0;
2147 case HTTPSTATE_SEND_DATA:
2148 /* find a new packet */
2152 /* read a packet from the input stream */
2153 if (c->stream->feed) {
2154 ffm_set_write_index(c->fmt_in,
2155 c->stream->feed->feed_write_index,
2156 c->stream->feed->feed_size);
2159 if (c->stream->max_time &&
2160 c->stream->max_time + c->start_time - cur_time < 0) {
2161 /* We have timed out */
2162 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2164 if (1 || c->is_packetized) {
2165 if (compute_send_delay(c) > 0) {
2166 c->state = HTTPSTATE_WAIT;
2167 return 1; /* state changed */
2171 if (av_read_frame(c->fmt_in, &pkt) < 0) {
2172 if (c->stream->feed && c->stream->feed->feed_opened) {
2173 /* if coming from feed, it means we reached the end of the
2174 ffm file, so must wait for more data */
2175 c->state = HTTPSTATE_WAIT_FEED;
2176 return 1; /* state changed */
2178 if (c->stream->loop) {
2179 av_close_input_file(c->fmt_in);
2181 if (open_input_stream(c, "") < 0)
2186 /* must send trailer now because eof or error */
2187 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2191 /* update first pts if needed */
2192 if (c->first_pts == AV_NOPTS_VALUE)
2193 c->first_pts = pkt.pts;
2195 /* send it to the appropriate stream */
2196 if (c->stream->feed) {
2197 /* if coming from a feed, select the right stream */
2198 if (c->switch_pending) {
2199 c->switch_pending = 0;
2200 for(i=0;i<c->stream->nb_streams;i++) {
2201 if (c->switch_feed_streams[i] == pkt.stream_index) {
2202 if (pkt.flags & PKT_FLAG_KEY) {
2203 do_switch_stream(c, i);
2206 if (c->switch_feed_streams[i] >= 0) {
2207 c->switch_pending = 1;
2211 for(i=0;i<c->stream->nb_streams;i++) {
2212 if (c->feed_streams[i] == pkt.stream_index) {
2213 pkt.stream_index = i;
2214 if (pkt.flags & PKT_FLAG_KEY) {
2215 c->got_key_frame |= 1 << i;
2217 /* See if we have all the key frames, then
2218 * we start to send. This logic is not quite
2219 * right, but it works for the case of a
2220 * single video stream with one or more
2221 * audio streams (for which every frame is
2222 * typically a key frame).
2224 if (!c->stream->send_on_key ||
2225 ((c->got_key_frame + 1) >> c->stream->nb_streams)) {
2231 AVCodecContext *codec;
2234 /* specific handling for RTP: we use several
2235 output stream (one for each RTP
2236 connection). XXX: need more abstract handling */
2237 if (c->is_packetized) {
2238 c->packet_stream_index = pkt.stream_index;
2239 ctx = c->rtp_ctx[c->packet_stream_index];
2240 codec = &ctx->streams[0]->codec;
2241 /* only one stream per RTP connection */
2242 pkt.stream_index = 0;
2246 codec = &ctx->streams[pkt.stream_index]->codec;
2249 codec->coded_frame->key_frame = ((pkt.flags & PKT_FLAG_KEY) != 0);
2252 if (codec->codec_type == CODEC_TYPE_AUDIO) {
2253 codec->frame_size = (codec->sample_rate * pkt.duration + 500000) / 1000000;
2254 /* printf("Calculated size %d, from sr %d, duration %d\n", codec->frame_size, codec->sample_rate, pkt.duration); */
2258 if (c->is_packetized) {
2259 ret = url_open_dyn_packet_buf(&ctx->pb,
2260 url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]));
2261 c->packet_byte_count = 0;
2262 c->packet_start_time_us = av_gettime();
2264 ret = url_open_dyn_buf(&ctx->pb);
2267 /* XXX: potential leak */
2270 if (av_write_frame(ctx, pkt.stream_index, pkt.data, pkt.size)) {
2271 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2274 len = url_close_dyn_buf(&ctx->pb, &c->pb_buffer);
2275 c->buffer_ptr = c->pb_buffer;
2276 c->buffer_end = c->pb_buffer + len;
2278 codec->frame_number++;
2280 #ifndef AV_READ_FRAME
2281 av_free_packet(&pkt);
2288 case HTTPSTATE_SEND_DATA_TRAILER:
2289 /* last packet test ? */
2290 if (c->last_packet_sent || c->is_packetized)
2293 /* prepare header */
2294 if (url_open_dyn_buf(&ctx->pb) < 0) {
2295 /* XXX: potential leak */
2298 av_write_trailer(ctx);
2299 len = url_close_dyn_buf(&ctx->pb, &c->pb_buffer);
2300 c->buffer_ptr = c->pb_buffer;
2301 c->buffer_end = c->pb_buffer + len;
2303 c->last_packet_sent = 1;
2310 #define SHORT_TERM_BANDWIDTH 8000000
2312 /* should convert the format at the same time */
2313 static int http_send_data(HTTPContext *c)
2317 while (c->buffer_ptr >= c->buffer_end) {
2318 av_freep(&c->pb_buffer);
2319 ret = http_prepare_data(c);
2322 else if (ret == 0) {
2325 /* state change requested */
2330 if (c->buffer_ptr < c->buffer_end) {
2331 if (c->is_packetized) {
2332 /* RTP/UDP data output */
2333 len = c->buffer_end - c->buffer_ptr;
2335 /* fail safe - should never happen */
2337 c->buffer_ptr = c->buffer_end;
2340 len = (c->buffer_ptr[0] << 24) |
2341 (c->buffer_ptr[1] << 16) |
2342 (c->buffer_ptr[2] << 8) |
2344 if (len > (c->buffer_end - c->buffer_ptr))
2347 /* short term bandwidth limitation */
2348 dt = av_gettime() - c->packet_start_time_us;
2352 if ((c->packet_byte_count + len) * (int64_t)1000000 >=
2353 (SHORT_TERM_BANDWIDTH / 8) * (int64_t)dt) {
2354 /* bandwidth overflow : wait at most one tick and retry */
2355 c->state = HTTPSTATE_WAIT_SHORT;
2360 url_write(c->rtp_handles[c->packet_stream_index],
2361 c->buffer_ptr, len);
2362 c->buffer_ptr += len;
2363 c->packet_byte_count += len;
2365 /* TCP data output */
2366 len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
2368 if (errno != EAGAIN && errno != EINTR) {
2369 /* error : close connection */
2375 c->buffer_ptr += len;
2378 c->data_count += len;
2379 update_datarate(&c->datarate, c->data_count);
2381 c->stream->bytes_served += len;
2386 static int http_start_receive_data(HTTPContext *c)
2390 if (c->stream->feed_opened)
2393 /* Don't permit writing to this one */
2394 if (c->stream->readonly)
2398 fd = open(c->stream->feed_filename, O_RDWR);
2403 c->stream->feed_write_index = ffm_read_write_index(fd);
2404 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2405 lseek(fd, 0, SEEK_SET);
2407 /* init buffer input */
2408 c->buffer_ptr = c->buffer;
2409 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2410 c->stream->feed_opened = 1;
2414 static int http_receive_data(HTTPContext *c)
2418 if (c->buffer_end > c->buffer_ptr) {
2421 len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
2423 if (errno != EAGAIN && errno != EINTR) {
2424 /* error : close connection */
2427 } else if (len == 0) {
2428 /* end of connection : close it */
2431 c->buffer_ptr += len;
2432 c->data_count += len;
2433 update_datarate(&c->datarate, c->data_count);
2437 if (c->buffer_ptr >= c->buffer_end) {
2438 FFStream *feed = c->stream;
2439 /* a packet has been received : write it in the store, except
2441 if (c->data_count > FFM_PACKET_SIZE) {
2443 // printf("writing pos=0x%Lx size=0x%Lx\n", feed->feed_write_index, feed->feed_size);
2444 /* XXX: use llseek or url_seek */
2445 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2446 write(c->feed_fd, c->buffer, FFM_PACKET_SIZE);
2448 feed->feed_write_index += FFM_PACKET_SIZE;
2449 /* update file size */
2450 if (feed->feed_write_index > c->stream->feed_size)
2451 feed->feed_size = feed->feed_write_index;
2453 /* handle wrap around if max file size reached */
2454 if (feed->feed_write_index >= c->stream->feed_max_size)
2455 feed->feed_write_index = FFM_PACKET_SIZE;
2458 ffm_write_write_index(c->feed_fd, feed->feed_write_index);
2460 /* wake up any waiting connections */
2461 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2462 if (c1->state == HTTPSTATE_WAIT_FEED &&
2463 c1->stream->feed == c->stream->feed) {
2464 c1->state = HTTPSTATE_SEND_DATA;
2468 /* We have a header in our hands that contains useful data */
2470 AVInputFormat *fmt_in;
2471 ByteIOContext *pb = &s.pb;
2474 memset(&s, 0, sizeof(s));
2476 url_open_buf(pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
2477 pb->buf_end = c->buffer_end; /* ?? */
2478 pb->is_streamed = 1;
2480 /* use feed output format name to find corresponding input format */
2481 fmt_in = av_find_input_format(feed->fmt->name);
2485 if (fmt_in->priv_data_size > 0) {
2486 s.priv_data = av_mallocz(fmt_in->priv_data_size);
2492 if (fmt_in->read_header(&s, 0) < 0) {
2493 av_freep(&s.priv_data);
2497 /* Now we have the actual streams */
2498 if (s.nb_streams != feed->nb_streams) {
2499 av_freep(&s.priv_data);
2502 for (i = 0; i < s.nb_streams; i++) {
2503 memcpy(&feed->streams[i]->codec,
2504 &s.streams[i]->codec, sizeof(AVCodecContext));
2506 av_freep(&s.priv_data);
2508 c->buffer_ptr = c->buffer;
2513 c->stream->feed_opened = 0;
2518 /********************************************************************/
2521 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2528 switch(error_number) {
2529 #define DEF(n, c, s) case c: str = s; break;
2530 #include "rtspcodes.h"
2533 str = "Unknown Error";
2537 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2538 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2540 /* output GMT time */
2544 p = buf2 + strlen(p) - 1;
2547 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2550 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2552 rtsp_reply_header(c, error_number);
2553 url_fprintf(c->pb, "\r\n");
2556 static int rtsp_parse_request(HTTPContext *c)
2558 const char *p, *p1, *p2;
2565 RTSPHeader header1, *header = &header1;
2567 c->buffer_ptr[0] = '\0';
2570 get_word(cmd, sizeof(cmd), &p);
2571 get_word(url, sizeof(url), &p);
2572 get_word(protocol, sizeof(protocol), &p);
2574 pstrcpy(c->method, sizeof(c->method), cmd);
2575 pstrcpy(c->url, sizeof(c->url), url);
2576 pstrcpy(c->protocol, sizeof(c->protocol), protocol);
2579 if (url_open_dyn_buf(c->pb) < 0) {
2580 /* XXX: cannot do more */
2581 c->pb = NULL; /* safety */
2585 /* check version name */
2586 if (strcmp(protocol, "RTSP/1.0") != 0) {
2587 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2591 /* parse each header line */
2592 memset(header, 0, sizeof(RTSPHeader));
2593 /* skip to next line */
2594 while (*p != '\n' && *p != '\0')
2598 while (*p != '\0') {
2599 p1 = strchr(p, '\n');
2603 if (p2 > p && p2[-1] == '\r')
2605 /* skip empty line */
2609 if (len > sizeof(line) - 1)
2610 len = sizeof(line) - 1;
2611 memcpy(line, p, len);
2613 rtsp_parse_line(header, line);
2617 /* handle sequence number */
2618 c->seq = header->seq;
2620 if (!strcmp(cmd, "DESCRIBE")) {
2621 rtsp_cmd_describe(c, url);
2622 } else if (!strcmp(cmd, "OPTIONS")) {
2623 rtsp_cmd_options(c, url);
2624 } else if (!strcmp(cmd, "SETUP")) {
2625 rtsp_cmd_setup(c, url, header);
2626 } else if (!strcmp(cmd, "PLAY")) {
2627 rtsp_cmd_play(c, url, header);
2628 } else if (!strcmp(cmd, "PAUSE")) {
2629 rtsp_cmd_pause(c, url, header);
2630 } else if (!strcmp(cmd, "TEARDOWN")) {
2631 rtsp_cmd_teardown(c, url, header);
2633 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2636 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2637 c->pb = NULL; /* safety */
2639 /* XXX: cannot do more */
2642 c->buffer_ptr = c->pb_buffer;
2643 c->buffer_end = c->pb_buffer + len;
2644 c->state = RTSPSTATE_SEND_REPLY;
2648 /* XXX: move that to rtsp.c, but would need to replace FFStream by
2650 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2651 struct in_addr my_ip)
2653 ByteIOContext pb1, *pb = &pb1;
2654 int i, payload_type, port, private_payload_type, j;
2655 const char *ipstr, *title, *mediatype;
2658 if (url_open_dyn_buf(pb) < 0)
2661 /* general media info */
2663 url_fprintf(pb, "v=0\n");
2664 ipstr = inet_ntoa(my_ip);
2665 url_fprintf(pb, "o=- 0 0 IN IP4 %s\n", ipstr);
2666 title = stream->title;
2667 if (title[0] == '\0')
2669 url_fprintf(pb, "s=%s\n", title);
2670 if (stream->comment[0] != '\0')
2671 url_fprintf(pb, "i=%s\n", stream->comment);
2672 if (stream->is_multicast) {
2673 url_fprintf(pb, "c=IN IP4 %s\n", inet_ntoa(stream->multicast_ip));
2675 /* for each stream, we output the necessary info */
2676 private_payload_type = 96;
2677 for(i = 0; i < stream->nb_streams; i++) {
2678 st = stream->streams[i];
2679 switch(st->codec.codec_type) {
2680 case CODEC_TYPE_AUDIO:
2681 mediatype = "audio";
2683 case CODEC_TYPE_VIDEO:
2684 mediatype = "video";
2687 mediatype = "application";
2690 /* NOTE: the port indication is not correct in case of
2691 unicast. It is not an issue because RTSP gives it */
2692 payload_type = rtp_get_payload_type(&st->codec);
2693 if (payload_type < 0)
2694 payload_type = private_payload_type++;
2695 if (stream->is_multicast) {
2696 port = stream->multicast_port + 2 * i;
2700 url_fprintf(pb, "m=%s %d RTP/AVP %d\n",
2701 mediatype, port, payload_type);
2702 if (payload_type >= 96) {
2703 /* for private payload type, we need to give more info */
2704 switch(st->codec.codec_id) {
2705 case CODEC_ID_MPEG4:
2708 url_fprintf(pb, "a=rtpmap:%d MP4V-ES/%d\n",
2709 payload_type, 90000);
2710 /* we must also add the mpeg4 header */
2711 data = st->codec.extradata;
2713 url_fprintf(pb, "a=fmtp:%d config=");
2714 for(j=0;j<st->codec.extradata_size;j++) {
2715 url_fprintf(pb, "%02x", data[j]);
2717 url_fprintf(pb, "\n");
2722 /* XXX: add other codecs ? */
2726 url_fprintf(pb, "a=control:streamid=%d\n", i);
2728 return url_close_dyn_buf(pb, pbuffer);
2730 url_close_dyn_buf(pb, pbuffer);
2735 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2737 // rtsp_reply_header(c, RTSP_STATUS_OK);
2738 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2739 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2740 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2741 url_fprintf(c->pb, "\r\n");
2744 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2750 int content_length, len;
2751 struct sockaddr_in my_addr;
2753 /* find which url is asked */
2754 url_split(NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2759 for(stream = first_stream; stream != NULL; stream = stream->next) {
2760 if (!stream->is_feed && stream->fmt == &rtp_mux &&
2761 !strcmp(path, stream->filename)) {
2765 /* no stream found */
2766 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2770 /* prepare the media description in sdp format */
2772 /* get the host IP */
2773 len = sizeof(my_addr);
2774 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
2776 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
2777 if (content_length < 0) {
2778 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2781 rtsp_reply_header(c, RTSP_STATUS_OK);
2782 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
2783 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
2784 url_fprintf(c->pb, "\r\n");
2785 put_buffer(c->pb, content, content_length);
2788 static HTTPContext *find_rtp_session(const char *session_id)
2792 if (session_id[0] == '\0')
2795 for(c = first_http_ctx; c != NULL; c = c->next) {
2796 if (!strcmp(c->session_id, session_id))
2802 static RTSPTransportField *find_transport(RTSPHeader *h, enum RTSPProtocol protocol)
2804 RTSPTransportField *th;
2807 for(i=0;i<h->nb_transports;i++) {
2808 th = &h->transports[i];
2809 if (th->protocol == protocol)
2815 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
2819 int stream_index, port;
2824 RTSPTransportField *th;
2825 struct sockaddr_in dest_addr;
2826 RTSPActionServerSetup setup;
2828 /* find which url is asked */
2829 url_split(NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2834 /* now check each stream */
2835 for(stream = first_stream; stream != NULL; stream = stream->next) {
2836 if (!stream->is_feed && stream->fmt == &rtp_mux) {
2837 /* accept aggregate filenames only if single stream */
2838 if (!strcmp(path, stream->filename)) {
2839 if (stream->nb_streams != 1) {
2840 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
2847 for(stream_index = 0; stream_index < stream->nb_streams;
2849 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2850 stream->filename, stream_index);
2851 if (!strcmp(path, buf))
2856 /* no stream found */
2857 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2861 /* generate session id if needed */
2862 if (h->session_id[0] == '\0') {
2863 snprintf(h->session_id, sizeof(h->session_id),
2864 "%08x%08x", (int)random(), (int)random());
2867 /* find rtp session, and create it if none found */
2868 rtp_c = find_rtp_session(h->session_id);
2870 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id);
2872 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
2876 /* open input stream */
2877 if (open_input_stream(rtp_c, "") < 0) {
2878 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2882 /* always prefer UDP */
2883 th = find_transport(h, RTSP_PROTOCOL_RTP_UDP);
2885 th = find_transport(h, RTSP_PROTOCOL_RTP_TCP);
2887 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2891 rtp_c->rtp_protocol = th->protocol;
2894 /* test if stream is OK (test needed because several SETUP needs
2895 to be done for a given file) */
2896 if (rtp_c->stream != stream) {
2897 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
2901 /* test if stream is already set up */
2902 if (rtp_c->rtp_ctx[stream_index]) {
2903 rtsp_reply_error(c, RTSP_STATUS_STATE);
2907 /* check transport */
2908 th = find_transport(h, rtp_c->rtp_protocol);
2909 if (!th || (th->protocol == RTSP_PROTOCOL_RTP_UDP &&
2910 th->client_port_min <= 0)) {
2911 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2915 /* setup default options */
2916 setup.transport_option[0] = '\0';
2917 dest_addr = rtp_c->from_addr;
2918 dest_addr.sin_port = htons(th->client_port_min);
2920 /* add transport option if needed */
2921 if (ff_rtsp_callback) {
2922 setup.ipaddr = ntohl(dest_addr.sin_addr.s_addr);
2923 if (ff_rtsp_callback(RTSP_ACTION_SERVER_SETUP, rtp_c->session_id,
2924 (char *)&setup, sizeof(setup),
2925 stream->rtsp_option) < 0) {
2926 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2929 dest_addr.sin_addr.s_addr = htonl(setup.ipaddr);
2933 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr) < 0) {
2934 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2938 /* now everything is OK, so we can send the connection parameters */
2939 rtsp_reply_header(c, RTSP_STATUS_OK);
2941 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2943 switch(rtp_c->rtp_protocol) {
2944 case RTSP_PROTOCOL_RTP_UDP:
2945 port = rtp_get_local_port(rtp_c->rtp_handles[stream_index]);
2946 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
2947 "client_port=%d-%d;server_port=%d-%d",
2948 th->client_port_min, th->client_port_min + 1,
2951 case RTSP_PROTOCOL_RTP_TCP:
2952 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
2953 stream_index * 2, stream_index * 2 + 1);
2958 if (setup.transport_option[0] != '\0') {
2959 url_fprintf(c->pb, ";%s", setup.transport_option);
2961 url_fprintf(c->pb, "\r\n");
2964 url_fprintf(c->pb, "\r\n");
2968 /* find an rtp connection by using the session ID. Check consistency
2970 static HTTPContext *find_rtp_session_with_url(const char *url,
2971 const char *session_id)
2977 rtp_c = find_rtp_session(session_id);
2981 /* find which url is asked */
2982 url_split(NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2986 if (strcmp(path, rtp_c->stream->filename) != 0)
2991 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h)
2995 rtp_c = find_rtp_session_with_url(url, h->session_id);
2997 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3001 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3002 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3003 rtp_c->state != HTTPSTATE_READY) {
3004 rtsp_reply_error(c, RTSP_STATUS_STATE);
3008 rtp_c->state = HTTPSTATE_SEND_DATA;
3010 /* now everything is OK, so we can send the connection parameters */
3011 rtsp_reply_header(c, RTSP_STATUS_OK);
3013 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3014 url_fprintf(c->pb, "\r\n");
3017 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h)
3021 rtp_c = find_rtp_session_with_url(url, h->session_id);
3023 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3027 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3028 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3029 rtsp_reply_error(c, RTSP_STATUS_STATE);
3033 rtp_c->state = HTTPSTATE_READY;
3035 /* now everything is OK, so we can send the connection parameters */
3036 rtsp_reply_header(c, RTSP_STATUS_OK);
3038 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3039 url_fprintf(c->pb, "\r\n");
3042 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h)
3046 rtp_c = find_rtp_session_with_url(url, h->session_id);
3048 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3052 /* abort the session */
3053 close_connection(rtp_c);
3055 if (ff_rtsp_callback) {
3056 ff_rtsp_callback(RTSP_ACTION_SERVER_TEARDOWN, rtp_c->session_id,
3058 rtp_c->stream->rtsp_option);
3061 /* now everything is OK, so we can send the connection parameters */
3062 rtsp_reply_header(c, RTSP_STATUS_OK);
3064 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3065 url_fprintf(c->pb, "\r\n");
3069 /********************************************************************/
3072 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3073 FFStream *stream, const char *session_id)
3075 HTTPContext *c = NULL;
3077 /* XXX: should output a warning page when coming
3078 close to the connection limit */
3079 if (nb_connections >= nb_max_connections)
3082 /* add a new connection */
3083 c = av_mallocz(sizeof(HTTPContext));
3088 c->poll_entry = NULL;
3089 c->from_addr = *from_addr;
3090 c->buffer_size = IOBUFFER_INIT_SIZE;
3091 c->buffer = av_malloc(c->buffer_size);
3096 pstrcpy(c->session_id, sizeof(c->session_id), session_id);
3097 c->state = HTTPSTATE_READY;
3098 c->is_packetized = 1;
3099 /* protocol is shown in statistics */
3100 pstrcpy(c->protocol, sizeof(c->protocol), "RTP");
3102 current_bandwidth += stream->bandwidth;
3104 c->next = first_http_ctx;
3116 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3117 command). if dest_addr is NULL, then TCP tunneling in RTSP is
3119 static int rtp_new_av_stream(HTTPContext *c,
3120 int stream_index, struct sockaddr_in *dest_addr)
3122 AVFormatContext *ctx;
3129 /* now we can open the relevant output stream */
3130 ctx = av_mallocz(sizeof(AVFormatContext));
3133 ctx->oformat = &rtp_mux;
3135 st = av_mallocz(sizeof(AVStream));
3138 ctx->nb_streams = 1;
3139 ctx->streams[0] = st;
3141 if (!c->stream->feed ||
3142 c->stream->feed == c->stream) {
3143 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3146 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3151 /* build destination RTP address */
3152 ipaddr = inet_ntoa(dest_addr->sin_addr);
3154 /* XXX: also pass as parameter to function ? */
3155 if (c->stream->is_multicast) {
3157 ttl = c->stream->multicast_ttl;
3160 snprintf(ctx->filename, sizeof(ctx->filename),
3161 "rtp://%s:%d?multicast=1&ttl=%d",
3162 ipaddr, ntohs(dest_addr->sin_port), ttl);
3164 snprintf(ctx->filename, sizeof(ctx->filename),
3165 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3168 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3170 c->rtp_handles[stream_index] = h;
3175 http_log("%s:%d - - [%s] \"RTPSTART %s/streamid=%d\"\n",
3176 ipaddr, ntohs(dest_addr->sin_port),
3178 c->stream->filename, stream_index);
3180 /* normally, no packets should be output here, but the packet size may be checked */
3181 if (url_open_dyn_packet_buf(&ctx->pb,
3182 url_get_max_packet_size(h)) < 0) {
3183 /* XXX: close stream */
3186 av_set_parameters(ctx, NULL);
3187 if (av_write_header(ctx) < 0) {
3194 url_close_dyn_buf(&ctx->pb, &dummy_buf);
3197 c->rtp_ctx[stream_index] = ctx;
3201 /********************************************************************/
3202 /* ffserver initialization */
3204 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec)
3208 fst = av_mallocz(sizeof(AVStream));
3211 fst->priv_data = av_mallocz(sizeof(FeedData));
3212 memcpy(&fst->codec, codec, sizeof(AVCodecContext));
3213 fst->codec.coded_frame = &dummy_frame;
3214 stream->streams[stream->nb_streams++] = fst;
3218 /* return the stream number in the feed */
3219 static int add_av_stream(FFStream *feed, AVStream *st)
3222 AVCodecContext *av, *av1;
3226 for(i=0;i<feed->nb_streams;i++) {
3227 st = feed->streams[i];
3229 if (av1->codec_id == av->codec_id &&
3230 av1->codec_type == av->codec_type &&
3231 av1->bit_rate == av->bit_rate) {
3233 switch(av->codec_type) {
3234 case CODEC_TYPE_AUDIO:
3235 if (av1->channels == av->channels &&
3236 av1->sample_rate == av->sample_rate)
3239 case CODEC_TYPE_VIDEO:
3240 if (av1->width == av->width &&
3241 av1->height == av->height &&
3242 av1->frame_rate == av->frame_rate &&
3243 av1->frame_rate_base == av->frame_rate_base &&
3244 av1->gop_size == av->gop_size)
3253 fst = add_av_stream1(feed, av);
3256 return feed->nb_streams - 1;
3261 static void remove_stream(FFStream *stream)
3265 while (*ps != NULL) {
3266 if (*ps == stream) {
3274 /* specific mpeg4 handling : we extract the raw parameters */
3275 static void extract_mpeg4_header(AVFormatContext *infile)
3277 int mpeg4_count, i, size;
3283 for(i=0;i<infile->nb_streams;i++) {
3284 st = infile->streams[i];
3285 if (st->codec.codec_id == CODEC_ID_MPEG4 &&
3286 st->codec.extradata == NULL) {
3293 printf("MPEG4 without extra data: trying to find header\n");
3294 while (mpeg4_count > 0) {
3295 if (av_read_packet(infile, &pkt) < 0)
3297 st = infile->streams[pkt.stream_index];
3298 if (st->codec.codec_id == CODEC_ID_MPEG4 &&
3299 st->codec.extradata == NULL) {
3300 /* fill extradata with the header */
3301 /* XXX: we make hard suppositions here ! */
3303 while (p < pkt.data + pkt.size - 4) {
3304 /* stop when vop header is found */
3305 if (p[0] == 0x00 && p[1] == 0x00 &&
3306 p[2] == 0x01 && p[3] == 0xb6) {
3307 size = p - pkt.data;
3308 // av_hex_dump(pkt.data, size);
3309 st->codec.extradata = av_malloc(size);
3310 st->codec.extradata_size = size;
3311 memcpy(st->codec.extradata, pkt.data, size);
3318 av_free_packet(&pkt);
3322 /* compute the needed AVStream for each file */
3323 static void build_file_streams(void)
3325 FFStream *stream, *stream_next;
3326 AVFormatContext *infile;
3329 /* gather all streams */
3330 for(stream = first_stream; stream != NULL; stream = stream_next) {
3331 stream_next = stream->next;
3332 if (stream->stream_type == STREAM_TYPE_LIVE &&
3334 /* the stream comes from a file */
3335 /* try to open the file */
3337 if (av_open_input_file(&infile, stream->feed_filename,
3338 NULL, 0, NULL) < 0) {
3339 http_log("%s not found", stream->feed_filename);
3340 /* remove stream (no need to spend more time on it) */
3342 remove_stream(stream);
3344 /* find all the AVStreams inside and reference them in
3346 if (av_find_stream_info(infile) < 0) {
3347 http_log("Could not find codec parameters from '%s'",
3348 stream->feed_filename);
3349 av_close_input_file(infile);
3352 extract_mpeg4_header(infile);
3354 for(i=0;i<infile->nb_streams;i++) {
3355 add_av_stream1(stream, &infile->streams[i]->codec);
3357 av_close_input_file(infile);
3363 /* compute the needed AVStream for each feed */
3364 static void build_feed_streams(void)
3366 FFStream *stream, *feed;
3369 /* gather all streams */
3370 for(stream = first_stream; stream != NULL; stream = stream->next) {
3371 feed = stream->feed;
3373 if (!stream->is_feed) {
3374 /* we handle a stream coming from a feed */
3375 for(i=0;i<stream->nb_streams;i++) {
3376 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3382 /* gather all streams */
3383 for(stream = first_stream; stream != NULL; stream = stream->next) {
3384 feed = stream->feed;
3386 if (stream->is_feed) {
3387 for(i=0;i<stream->nb_streams;i++) {
3388 stream->feed_streams[i] = i;
3394 /* create feed files if needed */
3395 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3398 if (url_exist(feed->feed_filename)) {
3399 /* See if it matches */
3403 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3404 /* Now see if it matches */
3405 if (s->nb_streams == feed->nb_streams) {
3407 for(i=0;i<s->nb_streams;i++) {
3409 sf = feed->streams[i];
3412 if (sf->index != ss->index ||
3414 printf("Index & Id do not match for stream %d\n", i);
3417 AVCodecContext *ccf, *ccs;
3421 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3423 if (CHECK_CODEC(codec) || CHECK_CODEC(codec_type)) {
3424 printf("Codecs do not match for stream %d\n", i);
3426 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3427 printf("Codec bitrates do not match for stream %d\n", i);
3429 } else if (ccf->codec_type == CODEC_TYPE_VIDEO) {
3430 if (CHECK_CODEC(frame_rate) ||
3431 CHECK_CODEC(frame_rate_base) ||
3432 CHECK_CODEC(width) ||
3433 CHECK_CODEC(height)) {
3434 printf("Codec width, height and framerate do not match for stream %d\n", i);
3437 } else if (ccf->codec_type == CODEC_TYPE_AUDIO) {
3438 if (CHECK_CODEC(sample_rate) ||
3439 CHECK_CODEC(channels) ||
3440 CHECK_CODEC(frame_size)) {
3441 printf("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3445 printf("Unknown codec type\n");
3454 printf("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3455 feed->feed_filename, s->nb_streams, feed->nb_streams);
3458 av_close_input_file(s);
3460 printf("Deleting feed file '%s' as it appears to be corrupt\n",
3461 feed->feed_filename);
3464 if (feed->readonly) {
3465 printf("Unable to delete feed file '%s' as it is marked readonly\n",
3466 feed->feed_filename);
3469 unlink(feed->feed_filename);
3472 if (!url_exist(feed->feed_filename)) {
3473 AVFormatContext s1, *s = &s1;
3475 if (feed->readonly) {
3476 printf("Unable to create feed file '%s' as it is marked readonly\n",
3477 feed->feed_filename);
3481 /* only write the header of the ffm file */
3482 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
3483 fprintf(stderr, "Could not open output feed file '%s'\n",
3484 feed->feed_filename);
3487 s->oformat = feed->fmt;
3488 s->nb_streams = feed->nb_streams;
3489 for(i=0;i<s->nb_streams;i++) {
3491 st = feed->streams[i];
3494 av_set_parameters(s, NULL);
3496 /* XXX: need better api */
3497 av_freep(&s->priv_data);
3500 /* get feed size and write index */
3501 fd = open(feed->feed_filename, O_RDONLY);
3503 fprintf(stderr, "Could not open output feed file '%s'\n",
3504 feed->feed_filename);
3508 feed->feed_write_index = ffm_read_write_index(fd);
3509 feed->feed_size = lseek(fd, 0, SEEK_END);
3510 /* ensure that we do not wrap before the end of file */
3511 if (feed->feed_max_size < feed->feed_size)
3512 feed->feed_max_size = feed->feed_size;
3518 /* compute the bandwidth used by each stream */
3519 static void compute_bandwidth(void)
3524 for(stream = first_stream; stream != NULL; stream = stream->next) {
3526 for(i=0;i<stream->nb_streams;i++) {
3527 AVStream *st = stream->streams[i];
3528 switch(st->codec.codec_type) {
3529 case CODEC_TYPE_AUDIO:
3530 case CODEC_TYPE_VIDEO:
3531 bandwidth += st->codec.bit_rate;
3537 stream->bandwidth = (bandwidth + 999) / 1000;
3541 static void get_arg(char *buf, int buf_size, const char **pp)
3548 while (isspace(*p)) p++;
3551 if (*p == '\"' || *p == '\'')
3563 if ((q - buf) < buf_size - 1)
3568 if (quote && *p == quote)
3573 /* add a codec and set the default parameters */
3574 static void add_codec(FFStream *stream, AVCodecContext *av)
3578 /* compute default parameters */
3579 switch(av->codec_type) {
3580 case CODEC_TYPE_AUDIO:
3581 if (av->bit_rate == 0)
3582 av->bit_rate = 64000;
3583 if (av->sample_rate == 0)
3584 av->sample_rate = 22050;
3585 if (av->channels == 0)
3588 case CODEC_TYPE_VIDEO:
3589 if (av->bit_rate == 0)
3590 av->bit_rate = 64000;
3591 if (av->frame_rate == 0){
3593 av->frame_rate_base = 1;
3595 if (av->width == 0 || av->height == 0) {
3599 /* Bitrate tolerance is less for streaming */
3600 if (av->bit_rate_tolerance == 0)
3601 av->bit_rate_tolerance = av->bit_rate / 4;
3606 if (av->max_qdiff == 0)
3608 av->qcompress = 0.5;
3612 av->rc_eq = "tex^qComp";
3613 if (!av->i_quant_factor)
3614 av->i_quant_factor = -0.8;
3615 if (!av->b_quant_factor)
3616 av->b_quant_factor = 1.25;
3617 if (!av->b_quant_offset)
3618 av->b_quant_offset = 1.25;
3619 if (!av->rc_min_rate)
3620 av->rc_min_rate = av->bit_rate / 2;
3621 if (!av->rc_max_rate)
3622 av->rc_max_rate = av->bit_rate * 2;
3629 st = av_mallocz(sizeof(AVStream));
3632 stream->streams[stream->nb_streams++] = st;
3633 memcpy(&st->codec, av, sizeof(AVCodecContext));
3636 static int opt_audio_codec(const char *arg)
3642 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
3647 return CODEC_ID_NONE;
3653 static int opt_video_codec(const char *arg)
3659 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
3664 return CODEC_ID_NONE;
3670 /* simplistic plugin support */
3672 #ifdef CONFIG_HAVE_DLOPEN
3673 void load_module(const char *filename)
3676 void (*init_func)(void);
3677 dll = dlopen(filename, RTLD_NOW);
3679 fprintf(stderr, "Could not load module '%s' - %s\n",
3680 filename, dlerror());
3684 init_func = dlsym(dll, "ffserver_module_init");
3687 "%s: init function 'ffserver_module_init()' not found\n",
3696 static int parse_ffconfig(const char *filename)
3703 int val, errors, line_num;
3704 FFStream **last_stream, *stream, *redirect;
3705 FFStream **last_feed, *feed;
3706 AVCodecContext audio_enc, video_enc;
3707 int audio_id, video_id;
3709 f = fopen(filename, "r");
3717 first_stream = NULL;
3718 last_stream = &first_stream;
3720 last_feed = &first_feed;
3724 audio_id = CODEC_ID_NONE;
3725 video_id = CODEC_ID_NONE;
3727 if (fgets(line, sizeof(line), f) == NULL)
3733 if (*p == '\0' || *p == '#')
3736 get_arg(cmd, sizeof(cmd), &p);
3738 if (!strcasecmp(cmd, "Port")) {
3739 get_arg(arg, sizeof(arg), &p);
3740 my_http_addr.sin_port = htons (atoi(arg));
3741 } else if (!strcasecmp(cmd, "BindAddress")) {
3742 get_arg(arg, sizeof(arg), &p);
3743 if (!inet_aton(arg, &my_http_addr.sin_addr)) {
3744 fprintf(stderr, "%s:%d: Invalid IP address: %s\n",
3745 filename, line_num, arg);
3748 } else if (!strcasecmp(cmd, "NoDaemon")) {
3749 ffserver_daemon = 0;
3750 } else if (!strcasecmp(cmd, "RTSPPort")) {
3751 get_arg(arg, sizeof(arg), &p);
3752 my_rtsp_addr.sin_port = htons (atoi(arg));
3753 } else if (!strcasecmp(cmd, "RTSPBindAddress")) {
3754 get_arg(arg, sizeof(arg), &p);
3755 if (!inet_aton(arg, &my_rtsp_addr.sin_addr)) {
3756 fprintf(stderr, "%s:%d: Invalid IP address: %s\n",
3757 filename, line_num, arg);
3760 } else if (!strcasecmp(cmd, "MaxClients")) {
3761 get_arg(arg, sizeof(arg), &p);
3763 if (val < 1 || val > HTTP_MAX_CONNECTIONS) {
3764 fprintf(stderr, "%s:%d: Invalid MaxClients: %s\n",
3765 filename, line_num, arg);
3768 nb_max_connections = val;
3770 } else if (!strcasecmp(cmd, "MaxBandwidth")) {
3771 get_arg(arg, sizeof(arg), &p);
3773 if (val < 10 || val > 100000) {
3774 fprintf(stderr, "%s:%d: Invalid MaxBandwidth: %s\n",
3775 filename, line_num, arg);
3778 max_bandwidth = val;
3780 } else if (!strcasecmp(cmd, "CustomLog")) {
3781 get_arg(logfilename, sizeof(logfilename), &p);
3782 } else if (!strcasecmp(cmd, "<Feed")) {
3783 /*********************************************/
3784 /* Feed related options */
3786 if (stream || feed) {
3787 fprintf(stderr, "%s:%d: Already in a tag\n",
3788 filename, line_num);
3790 feed = av_mallocz(sizeof(FFStream));
3791 /* add in stream list */
3792 *last_stream = feed;
3793 last_stream = &feed->next;
3794 /* add in feed list */
3796 last_feed = &feed->next_feed;
3798 get_arg(feed->filename, sizeof(feed->filename), &p);
3799 q = strrchr(feed->filename, '>');
3802 feed->fmt = guess_format("ffm", NULL, NULL);
3803 /* defaut feed file */
3804 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
3805 "/tmp/%s.ffm", feed->filename);
3806 feed->feed_max_size = 5 * 1024 * 1024;
3808 feed->feed = feed; /* self feeding :-) */
3810 } else if (!strcasecmp(cmd, "Launch")) {
3814 feed->child_argv = (char **) av_mallocz(64 * sizeof(char *));
3816 feed->child_argv[0] = av_malloc(7);
3817 strcpy(feed->child_argv[0], "ffmpeg");
3819 for (i = 1; i < 62; i++) {
3822 get_arg(argbuf, sizeof(argbuf), &p);
3826 feed->child_argv[i] = av_malloc(strlen(argbuf) + 1);
3827 strcpy(feed->child_argv[i], argbuf);
3830 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
3832 snprintf(feed->child_argv[i], 256, "http://127.0.0.1:%d/%s",
3833 ntohs(my_http_addr.sin_port), feed->filename);
3835 } else if (!strcasecmp(cmd, "ReadOnlyFile")) {
3837 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
3839 } else if (stream) {
3840 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
3842 } else if (!strcasecmp(cmd, "File")) {
3844 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
3845 } else if (stream) {
3846 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
3848 } else if (!strcasecmp(cmd, "FileMaxSize")) {
3853 get_arg(arg, sizeof(arg), &p);
3855 fsize = strtod(p1, (char **)&p1);
3856 switch(toupper(*p1)) {
3861 fsize *= 1024 * 1024;
3864 fsize *= 1024 * 1024 * 1024;
3867 feed->feed_max_size = (int64_t)fsize;
3869 } else if (!strcasecmp(cmd, "</Feed>")) {
3871 fprintf(stderr, "%s:%d: No corresponding <Feed> for </Feed>\n",
3872 filename, line_num);
3876 /* Make sure that we start out clean */
3877 if (unlink(feed->feed_filename) < 0
3878 && errno != ENOENT) {
3879 fprintf(stderr, "%s:%d: Unable to clean old feed file '%s': %s\n",
3880 filename, line_num, feed->feed_filename, strerror(errno));
3886 } else if (!strcasecmp(cmd, "<Stream")) {
3887 /*********************************************/
3888 /* Stream related options */
3890 if (stream || feed) {
3891 fprintf(stderr, "%s:%d: Already in a tag\n",
3892 filename, line_num);
3894 stream = av_mallocz(sizeof(FFStream));
3895 *last_stream = stream;
3896 last_stream = &stream->next;
3898 get_arg(stream->filename, sizeof(stream->filename), &p);
3899 q = strrchr(stream->filename, '>');
3902 stream->fmt = guess_stream_format(NULL, stream->filename, NULL);
3903 memset(&audio_enc, 0, sizeof(AVCodecContext));
3904 memset(&video_enc, 0, sizeof(AVCodecContext));
3905 audio_id = CODEC_ID_NONE;
3906 video_id = CODEC_ID_NONE;
3908 audio_id = stream->fmt->audio_codec;
3909 video_id = stream->fmt->video_codec;
3912 } else if (!strcasecmp(cmd, "Feed")) {
3913 get_arg(arg, sizeof(arg), &p);
3918 while (sfeed != NULL) {
3919 if (!strcmp(sfeed->filename, arg))
3921 sfeed = sfeed->next_feed;
3924 fprintf(stderr, "%s:%d: feed '%s' not defined\n",
3925 filename, line_num, arg);
3927 stream->feed = sfeed;
3930 } else if (!strcasecmp(cmd, "Format")) {
3931 get_arg(arg, sizeof(arg), &p);
3932 if (!strcmp(arg, "status")) {
3933 stream->stream_type = STREAM_TYPE_STATUS;
3936 stream->stream_type = STREAM_TYPE_LIVE;
3937 /* jpeg cannot be used here, so use single frame jpeg */
3938 if (!strcmp(arg, "jpeg"))
3939 strcpy(arg, "singlejpeg");
3940 stream->fmt = guess_stream_format(arg, NULL, NULL);
3942 fprintf(stderr, "%s:%d: Unknown Format: %s\n",
3943 filename, line_num, arg);
3948 audio_id = stream->fmt->audio_codec;
3949 video_id = stream->fmt->video_codec;
3951 } else if (!strcasecmp(cmd, "FaviconURL")) {
3952 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
3953 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
3955 fprintf(stderr, "%s:%d: FaviconURL only permitted for status streams\n",
3956 filename, line_num);
3959 } else if (!strcasecmp(cmd, "Author")) {
3961 get_arg(stream->author, sizeof(stream->author), &p);
3963 } else if (!strcasecmp(cmd, "Comment")) {
3965 get_arg(stream->comment, sizeof(stream->comment), &p);
3967 } else if (!strcasecmp(cmd, "Copyright")) {
3969 get_arg(stream->copyright, sizeof(stream->copyright), &p);
3971 } else if (!strcasecmp(cmd, "Title")) {
3973 get_arg(stream->title, sizeof(stream->title), &p);
3975 } else if (!strcasecmp(cmd, "Preroll")) {
3976 get_arg(arg, sizeof(arg), &p);
3978 stream->prebuffer = atof(arg) * 1000;
3980 } else if (!strcasecmp(cmd, "StartSendOnKey")) {
3982 stream->send_on_key = 1;
3984 } else if (!strcasecmp(cmd, "AudioCodec")) {
3985 get_arg(arg, sizeof(arg), &p);
3986 audio_id = opt_audio_codec(arg);
3987 if (audio_id == CODEC_ID_NONE) {
3988 fprintf(stderr, "%s:%d: Unknown AudioCodec: %s\n",
3989 filename, line_num, arg);
3992 } else if (!strcasecmp(cmd, "VideoCodec")) {
3993 get_arg(arg, sizeof(arg), &p);
3994 video_id = opt_video_codec(arg);
3995 if (video_id == CODEC_ID_NONE) {
3996 fprintf(stderr, "%s:%d: Unknown VideoCodec: %s\n",
3997 filename, line_num, arg);
4000 } else if (!strcasecmp(cmd, "MaxTime")) {
4001 get_arg(arg, sizeof(arg), &p);
4003 stream->max_time = atof(arg) * 1000;
4005 } else if (!strcasecmp(cmd, "AudioBitRate")) {
4006 get_arg(arg, sizeof(arg), &p);
4008 audio_enc.bit_rate = atoi(arg) * 1000;
4010 } else if (!strcasecmp(cmd, "AudioChannels")) {
4011 get_arg(arg, sizeof(arg), &p);
4013 audio_enc.channels = atoi(arg);
4015 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
4016 get_arg(arg, sizeof(arg), &p);
4018 audio_enc.sample_rate = atoi(arg);
4020 } else if (!strcasecmp(cmd, "AudioQuality")) {
4021 get_arg(arg, sizeof(arg), &p);
4023 // audio_enc.quality = atof(arg) * 1000;
4025 } else if (!strcasecmp(cmd, "VideoBitRateRange")) {
4027 int minrate, maxrate;
4029 get_arg(arg, sizeof(arg), &p);
4031 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4032 video_enc.rc_min_rate = minrate * 1000;
4033 video_enc.rc_max_rate = maxrate * 1000;
4035 fprintf(stderr, "%s:%d: Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n",
4036 filename, line_num, arg);
4040 } else if (!strcasecmp(cmd, "VideoBitRateTolerance")) {
4042 get_arg(arg, sizeof(arg), &p);
4043 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4045 } else if (!strcasecmp(cmd, "VideoBitRate")) {
4046 get_arg(arg, sizeof(arg), &p);
4048 video_enc.bit_rate = atoi(arg) * 1000;
4050 } else if (!strcasecmp(cmd, "VideoSize")) {
4051 get_arg(arg, sizeof(arg), &p);
4053 parse_image_size(&video_enc.width, &video_enc.height, arg);
4054 if ((video_enc.width % 16) != 0 ||
4055 (video_enc.height % 16) != 0) {
4056 fprintf(stderr, "%s:%d: Image size must be a multiple of 16\n",
4057 filename, line_num);
4061 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
4062 get_arg(arg, sizeof(arg), &p);
4064 video_enc.frame_rate_base= DEFAULT_FRAME_RATE_BASE;
4065 video_enc.frame_rate = (int)(strtod(arg, NULL) * video_enc.frame_rate_base);
4067 } else if (!strcasecmp(cmd, "VideoGopSize")) {
4068 get_arg(arg, sizeof(arg), &p);
4070 video_enc.gop_size = atoi(arg);
4072 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
4074 video_enc.gop_size = 1;
4076 } else if (!strcasecmp(cmd, "VideoHighQuality")) {
4078 video_enc.flags |= CODEC_FLAG_HQ;
4080 } else if (!strcasecmp(cmd, "Video4MotionVector")) {
4082 video_enc.flags |= CODEC_FLAG_HQ;
4083 video_enc.flags |= CODEC_FLAG_4MV;
4085 } else if (!strcasecmp(cmd, "VideoQDiff")) {
4086 get_arg(arg, sizeof(arg), &p);
4088 video_enc.max_qdiff = atoi(arg);
4089 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4090 fprintf(stderr, "%s:%d: VideoQDiff out of range\n",
4091 filename, line_num);
4095 } else if (!strcasecmp(cmd, "VideoQMax")) {
4096 get_arg(arg, sizeof(arg), &p);
4098 video_enc.qmax = atoi(arg);
4099 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4100 fprintf(stderr, "%s:%d: VideoQMax out of range\n",
4101 filename, line_num);
4105 } else if (!strcasecmp(cmd, "VideoQMin")) {
4106 get_arg(arg, sizeof(arg), &p);
4108 video_enc.qmin = atoi(arg);
4109 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4110 fprintf(stderr, "%s:%d: VideoQMin out of range\n",
4111 filename, line_num);
4115 } else if (!strcasecmp(cmd, "LumaElim")) {
4116 get_arg(arg, sizeof(arg), &p);
4118 video_enc.luma_elim_threshold = atoi(arg);
4120 } else if (!strcasecmp(cmd, "ChromaElim")) {
4121 get_arg(arg, sizeof(arg), &p);
4123 video_enc.chroma_elim_threshold = atoi(arg);
4125 } else if (!strcasecmp(cmd, "LumiMask")) {
4126 get_arg(arg, sizeof(arg), &p);
4128 video_enc.lumi_masking = atof(arg);
4130 } else if (!strcasecmp(cmd, "DarkMask")) {
4131 get_arg(arg, sizeof(arg), &p);
4133 video_enc.dark_masking = atof(arg);
4135 } else if (!strcasecmp(cmd, "NoVideo")) {
4136 video_id = CODEC_ID_NONE;
4137 } else if (!strcasecmp(cmd, "NoAudio")) {
4138 audio_id = CODEC_ID_NONE;
4139 } else if (!strcasecmp(cmd, "ACL")) {
4143 get_arg(arg, sizeof(arg), &p);
4144 if (strcasecmp(arg, "allow") == 0) {
4145 acl.action = IP_ALLOW;
4146 } else if (strcasecmp(arg, "deny") == 0) {
4147 acl.action = IP_DENY;
4149 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
4150 filename, line_num, arg);
4154 get_arg(arg, sizeof(arg), &p);
4156 he = gethostbyname(arg);
4158 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
4159 filename, line_num, arg);
4162 /* Only take the first */
4163 acl.first.s_addr = ntohl(((struct in_addr *) he->h_addr_list[0])->s_addr);
4164 acl.last = acl.first;
4167 get_arg(arg, sizeof(arg), &p);
4170 he = gethostbyname(arg);
4172 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
4173 filename, line_num, arg);
4176 /* Only take the first */
4177 acl.last.s_addr = ntohl(((struct in_addr *) he->h_addr_list[0])->s_addr);
4182 IPAddressACL *nacl = (IPAddressACL *) av_mallocz(sizeof(*nacl));
4183 IPAddressACL **naclp = 0;
4189 naclp = &stream->acl;
4193 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
4194 filename, line_num);
4200 naclp = &(*naclp)->next;
4205 } else if (!strcasecmp(cmd, "RTSPOption")) {
4206 get_arg(arg, sizeof(arg), &p);
4208 av_freep(&stream->rtsp_option);
4209 /* XXX: av_strdup ? */
4210 stream->rtsp_option = av_malloc(strlen(arg) + 1);
4211 if (stream->rtsp_option) {
4212 strcpy(stream->rtsp_option, arg);
4215 } else if (!strcasecmp(cmd, "MulticastAddress")) {
4216 get_arg(arg, sizeof(arg), &p);
4218 if (!inet_aton(arg, &stream->multicast_ip)) {
4219 fprintf(stderr, "%s:%d: Invalid IP address: %s\n",
4220 filename, line_num, arg);
4223 stream->is_multicast = 1;
4224 stream->loop = 1; /* default is looping */
4226 } else if (!strcasecmp(cmd, "MulticastPort")) {
4227 get_arg(arg, sizeof(arg), &p);
4229 stream->multicast_port = atoi(arg);
4231 } else if (!strcasecmp(cmd, "MulticastTTL")) {
4232 get_arg(arg, sizeof(arg), &p);
4234 stream->multicast_ttl = atoi(arg);
4236 } else if (!strcasecmp(cmd, "NoLoop")) {
4240 } else if (!strcasecmp(cmd, "</Stream>")) {
4242 fprintf(stderr, "%s:%d: No corresponding <Stream> for </Stream>\n",
4243 filename, line_num);
4246 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4247 if (audio_id != CODEC_ID_NONE) {
4248 audio_enc.codec_type = CODEC_TYPE_AUDIO;
4249 audio_enc.codec_id = audio_id;
4250 add_codec(stream, &audio_enc);
4252 if (video_id != CODEC_ID_NONE) {
4253 video_enc.codec_type = CODEC_TYPE_VIDEO;
4254 video_enc.codec_id = video_id;
4255 add_codec(stream, &video_enc);
4259 } else if (!strcasecmp(cmd, "<Redirect")) {
4260 /*********************************************/
4262 if (stream || feed || redirect) {
4263 fprintf(stderr, "%s:%d: Already in a tag\n",
4264 filename, line_num);
4267 redirect = av_mallocz(sizeof(FFStream));
4268 *last_stream = redirect;
4269 last_stream = &redirect->next;
4271 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4272 q = strrchr(redirect->filename, '>');
4275 redirect->stream_type = STREAM_TYPE_REDIRECT;
4277 } else if (!strcasecmp(cmd, "URL")) {
4279 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4281 } else if (!strcasecmp(cmd, "</Redirect>")) {
4283 fprintf(stderr, "%s:%d: No corresponding <Redirect> for </Redirect>\n",
4284 filename, line_num);
4287 if (!redirect->feed_filename[0]) {
4288 fprintf(stderr, "%s:%d: No URL found for <Redirect>\n",
4289 filename, line_num);
4293 } else if (!strcasecmp(cmd, "LoadModule")) {
4294 get_arg(arg, sizeof(arg), &p);
4295 #ifdef CONFIG_HAVE_DLOPEN
4298 fprintf(stderr, "%s:%d: Module support not compiled into this version: '%s'\n",
4299 filename, line_num, arg);
4303 fprintf(stderr, "%s:%d: Incorrect keyword: '%s'\n",
4304 filename, line_num, cmd);
4318 static void write_packet(FFCodec *ffenc,
4319 uint8_t *buf, int size)
4322 AVCodecContext *enc = &ffenc->enc;
4324 mk_header(&hdr, enc, size);
4325 wptr = http_fifo.wptr;
4326 fifo_write(&http_fifo, (uint8_t *)&hdr, sizeof(hdr), &wptr);
4327 fifo_write(&http_fifo, buf, size, &wptr);
4328 /* atomic modification of wptr */
4329 http_fifo.wptr = wptr;
4330 ffenc->data_count += size;
4331 ffenc->avg_frame_size = ffenc->avg_frame_size * AVG_COEF + size * (1.0 - AVG_COEF);
4335 static void help(void)
4337 printf("ffserver version " FFMPEG_VERSION ", Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n"
4338 "usage: ffserver [-L] [-h] [-f configfile]\n"
4339 "Hyper fast multi format Audio/Video streaming server\n"
4341 "-L : print the LICENCE\n"
4343 "-f configfile : use configfile instead of /etc/ffserver.conf\n"
4347 static void licence(void)
4350 "ffserver version " FFMPEG_VERSION "\n"
4351 "Copyright (c) 2000, 2001, 2002 Fabrice Bellard\n"
4352 "This library is free software; you can redistribute it and/or\n"
4353 "modify it under the terms of the GNU Lesser General Public\n"
4354 "License as published by the Free Software Foundation; either\n"
4355 "version 2 of the License, or (at your option) any later version.\n"
4357 "This library is distributed in the hope that it will be useful,\n"
4358 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
4359 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n"
4360 "Lesser General Public License for more details.\n"
4362 "You should have received a copy of the GNU Lesser General Public\n"
4363 "License along with this library; if not, write to the Free Software\n"
4364 "Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\n"
4368 static void handle_child_exit(int sig)
4373 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4376 for (feed = first_feed; feed; feed = feed->next) {
4377 if (feed->pid == pid) {
4378 int uptime = time(0) - feed->pid_start;
4381 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4384 /* Turn off any more restarts */
4385 feed->child_argv = 0;
4391 need_to_start_children = 1;
4394 int main(int argc, char **argv)
4396 const char *config_filename;
4398 struct sigaction sigact;
4402 config_filename = "/etc/ffserver.conf";
4404 my_program_name = argv[0];
4405 my_program_dir = getcwd(0, 0);
4406 ffserver_daemon = 1;
4409 c = getopt(argc, argv, "ndLh?f:");
4425 ffserver_daemon = 0;
4428 config_filename = optarg;
4435 putenv("http_proxy"); /* Kill the http_proxy */
4437 srandom(gettime_ms() + (getpid() << 16));
4439 /* address on which the server will handle HTTP connections */
4440 my_http_addr.sin_family = AF_INET;
4441 my_http_addr.sin_port = htons (8080);
4442 my_http_addr.sin_addr.s_addr = htonl (INADDR_ANY);
4444 /* address on which the server will handle RTSP connections */
4445 my_rtsp_addr.sin_family = AF_INET;
4446 my_rtsp_addr.sin_port = htons (5454);
4447 my_rtsp_addr.sin_addr.s_addr = htonl (INADDR_ANY);
4449 nb_max_connections = 5;
4450 max_bandwidth = 1000;
4451 first_stream = NULL;
4452 logfilename[0] = '\0';
4454 memset(&sigact, 0, sizeof(sigact));
4455 sigact.sa_handler = handle_child_exit;
4456 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4457 sigaction(SIGCHLD, &sigact, 0);
4459 if (parse_ffconfig(config_filename) < 0) {
4460 fprintf(stderr, "Incorrect config file - exiting.\n");
4464 build_file_streams();
4466 build_feed_streams();
4468 compute_bandwidth();
4470 /* put the process in background and detach it from its TTY */
4471 if (ffserver_daemon) {
4478 } else if (pid > 0) {
4486 open("/dev/null", O_RDWR);
4487 if (strcmp(logfilename, "-") != 0) {
4497 signal(SIGPIPE, SIG_IGN);
4499 /* open log file if needed */
4500 if (logfilename[0] != '\0') {
4501 if (!strcmp(logfilename, "-"))
4504 logfile = fopen(logfilename, "w");
4507 if (http_server() < 0) {
4508 fprintf(stderr, "Could not start server\n");