2 * Multiple format streaming server
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #ifndef HAVE_CLOSESOCKET
24 #define closesocket close
31 #include "os_support.h"
36 #include <sys/ioctl.h>
37 #ifdef HAVE_SYS_POLL_H
42 #undef time //needed because HAVE_AV_CONFIG_H is defined on top
59 static const char program_name[] = "FFserver";
60 static const int program_birth_year = 2000;
62 /* maximum number of simultaneous HTTP connections */
63 #define HTTP_MAX_CONNECTIONS 2000
66 HTTPSTATE_WAIT_REQUEST,
67 HTTPSTATE_SEND_HEADER,
68 HTTPSTATE_SEND_DATA_HEADER,
69 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
70 HTTPSTATE_SEND_DATA_TRAILER,
71 HTTPSTATE_RECEIVE_DATA,
72 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
75 RTSPSTATE_WAIT_REQUEST,
77 RTSPSTATE_SEND_PACKET,
80 const char *http_state[] = {
96 #define IOBUFFER_INIT_SIZE 8192
98 /* timeouts are in ms */
99 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
100 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
102 #define SYNC_TIMEOUT (10 * 1000)
105 int64_t count1, count2;
106 int64_t time1, time2;
109 /* context associated with one connection */
110 typedef struct HTTPContext {
111 enum HTTPState state;
112 int fd; /* socket file descriptor */
113 struct sockaddr_in from_addr; /* origin */
114 struct pollfd *poll_entry; /* used when polling */
116 uint8_t *buffer_ptr, *buffer_end;
119 struct HTTPContext *next;
120 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
124 /* input format handling */
125 AVFormatContext *fmt_in;
126 int64_t start_time; /* In milliseconds - this wraps fairly often */
127 int64_t first_pts; /* initial pts value */
128 int64_t cur_pts; /* current pts value from the stream in us */
129 int64_t cur_frame_duration; /* duration of the current frame in us */
130 int cur_frame_bytes; /* output frame size, needed to compute
131 the time at which we send each
133 int pts_stream_index; /* stream we choose as clock reference */
134 int64_t cur_clock; /* current clock reference value in us */
135 /* output format handling */
136 struct FFStream *stream;
137 /* -1 is invalid stream */
138 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
139 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
141 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
142 int last_packet_sent; /* true if last data packet was sent */
144 DataRateData datarate;
151 int is_packetized; /* if true, the stream is packetized */
152 int packet_stream_index; /* current stream for output in state machine */
154 /* RTSP state specific */
155 uint8_t *pb_buffer; /* XXX: use that in all the code */
157 int seq; /* RTSP sequence number */
159 /* RTP state specific */
160 enum RTSPProtocol rtp_protocol;
161 char session_id[32]; /* session id */
162 AVFormatContext *rtp_ctx[MAX_STREAMS];
164 /* RTP/UDP specific */
165 URLContext *rtp_handles[MAX_STREAMS];
167 /* RTP/TCP specific */
168 struct HTTPContext *rtsp_c;
169 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
172 static AVFrame dummy_frame;
174 /* each generated stream is described here */
178 STREAM_TYPE_REDIRECT,
181 enum IPAddressAction {
186 typedef struct IPAddressACL {
187 struct IPAddressACL *next;
188 enum IPAddressAction action;
189 /* These are in host order */
190 struct in_addr first;
194 /* description of each stream of the ffserver.conf file */
195 typedef struct FFStream {
196 enum StreamType stream_type;
197 char filename[1024]; /* stream filename */
198 struct FFStream *feed; /* feed we are using (can be null if
200 AVFormatParameters *ap_in; /* input parameters */
201 AVInputFormat *ifmt; /* if non NULL, force input format */
205 int prebuffer; /* Number of millseconds early to start */
206 int64_t max_time; /* Number of milliseconds to run */
208 AVStream *streams[MAX_STREAMS];
209 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
210 char feed_filename[1024]; /* file name of the feed storage, or
211 input file name for a stream */
216 pid_t pid; /* Of ffmpeg process */
217 time_t pid_start; /* Of ffmpeg process */
219 struct FFStream *next;
220 int bandwidth; /* bandwidth, in kbits/s */
223 /* multicast specific */
225 struct in_addr multicast_ip;
226 int multicast_port; /* first port used for multicast */
228 int loop; /* if true, send the stream in loops (only meaningful if file) */
231 int feed_opened; /* true if someone is writing to the feed */
232 int is_feed; /* true if it is a feed */
233 int readonly; /* True if writing is prohibited to the file */
235 int64_t bytes_served;
236 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
237 int64_t feed_write_index; /* current write position in feed (it wraps round) */
238 int64_t feed_size; /* current size of feed */
239 struct FFStream *next_feed;
242 typedef struct FeedData {
243 long long data_count;
244 float avg_frame_size; /* frame size averraged over last frames with exponential mean */
247 static struct sockaddr_in my_http_addr;
248 static struct sockaddr_in my_rtsp_addr;
250 static char logfilename[1024];
251 static HTTPContext *first_http_ctx;
252 static FFStream *first_feed; /* contains only feeds */
253 static FFStream *first_stream; /* contains all streams, including feeds */
255 static void new_connection(int server_fd, int is_rtsp);
256 static void close_connection(HTTPContext *c);
259 static int handle_connection(HTTPContext *c);
260 static int http_parse_request(HTTPContext *c);
261 static int http_send_data(HTTPContext *c);
262 static void compute_stats(HTTPContext *c);
263 static int open_input_stream(HTTPContext *c, const char *info);
264 static int http_start_receive_data(HTTPContext *c);
265 static int http_receive_data(HTTPContext *c);
268 static int rtsp_parse_request(HTTPContext *c);
269 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
270 static void rtsp_cmd_options(HTTPContext *c, const char *url);
271 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPHeader *h);
272 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h);
273 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h);
274 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h);
277 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
278 struct in_addr my_ip);
281 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
282 FFStream *stream, const char *session_id,
283 enum RTSPProtocol rtp_protocol);
284 static int rtp_new_av_stream(HTTPContext *c,
285 int stream_index, struct sockaddr_in *dest_addr,
286 HTTPContext *rtsp_c);
288 static const char *my_program_name;
289 static const char *my_program_dir;
291 static int ffserver_debug;
292 static int ffserver_daemon;
293 static int no_launch;
294 static int need_to_start_children;
296 static int nb_max_connections;
297 static int nb_connections;
299 static int max_bandwidth;
300 static int current_bandwidth;
302 static int64_t cur_time; // Making this global saves on passing it around everywhere
304 static AVRandomState random_state;
306 static FILE *logfile = NULL;
308 static void __attribute__ ((format (printf, 1, 2))) http_log(const char *fmt, ...)
314 vfprintf(logfile, fmt, ap);
320 static char *ctime1(char *buf2)
328 p = buf2 + strlen(p) - 1;
334 static void log_connection(HTTPContext *c)
341 http_log("%s - - [%s] \"%s %s %s\" %d %"PRId64"\n",
342 inet_ntoa(c->from_addr.sin_addr),
343 ctime1(buf2), c->method, c->url,
344 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
347 static void update_datarate(DataRateData *drd, int64_t count)
349 if (!drd->time1 && !drd->count1) {
350 drd->time1 = drd->time2 = cur_time;
351 drd->count1 = drd->count2 = count;
352 } else if (cur_time - drd->time2 > 5000) {
353 drd->time1 = drd->time2;
354 drd->count1 = drd->count2;
355 drd->time2 = cur_time;
360 /* In bytes per second */
361 static int compute_datarate(DataRateData *drd, int64_t count)
363 if (cur_time == drd->time1)
366 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
370 static void start_children(FFStream *feed)
375 for (; feed; feed = feed->next) {
376 if (feed->child_argv && !feed->pid) {
377 feed->pid_start = time(0);
382 fprintf(stderr, "Unable to create children\n");
391 for (i = 3; i < 256; i++)
394 if (!ffserver_debug) {
395 i = open("/dev/null", O_RDWR);
404 av_strlcpy(pathname, my_program_name, sizeof(pathname));
406 slash = strrchr(pathname, '/');
411 strcpy(slash, "ffmpeg");
413 /* This is needed to make relative pathnames work */
414 chdir(my_program_dir);
416 signal(SIGPIPE, SIG_DFL);
418 execvp(pathname, feed->child_argv);
426 /* open a listening socket */
427 static int socket_open_listen(struct sockaddr_in *my_addr)
431 server_fd = socket(AF_INET,SOCK_STREAM,0);
438 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
440 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
442 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
444 closesocket(server_fd);
448 if (listen (server_fd, 5) < 0) {
450 closesocket(server_fd);
453 ff_socket_nonblock(server_fd, 1);
458 /* start all multicast streams */
459 static void start_multicast(void)
464 struct sockaddr_in dest_addr;
465 int default_port, stream_index;
468 for(stream = first_stream; stream != NULL; stream = stream->next) {
469 if (stream->is_multicast) {
470 /* open the RTP connection */
471 snprintf(session_id, sizeof(session_id), "%08x%08x",
472 av_random(&random_state), av_random(&random_state));
474 /* choose a port if none given */
475 if (stream->multicast_port == 0) {
476 stream->multicast_port = default_port;
480 dest_addr.sin_family = AF_INET;
481 dest_addr.sin_addr = stream->multicast_ip;
482 dest_addr.sin_port = htons(stream->multicast_port);
484 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
485 RTSP_PROTOCOL_RTP_UDP_MULTICAST);
489 if (open_input_stream(rtp_c, "") < 0) {
490 fprintf(stderr, "Could not open input stream for stream '%s'\n",
495 /* open each RTP stream */
496 for(stream_index = 0; stream_index < stream->nb_streams;
498 dest_addr.sin_port = htons(stream->multicast_port +
500 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
501 fprintf(stderr, "Could not open output stream '%s/streamid=%d'\n",
502 stream->filename, stream_index);
507 /* change state to send data */
508 rtp_c->state = HTTPSTATE_SEND_DATA;
513 /* main loop of the http server */
514 static int http_server(void)
516 int server_fd, ret, rtsp_server_fd, delay, delay1;
517 struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 2], *poll_entry;
518 HTTPContext *c, *c_next;
520 server_fd = socket_open_listen(&my_http_addr);
524 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
525 if (rtsp_server_fd < 0)
528 http_log("ffserver started.\n");
530 start_children(first_feed);
532 first_http_ctx = NULL;
538 poll_entry = poll_table;
539 poll_entry->fd = server_fd;
540 poll_entry->events = POLLIN;
543 poll_entry->fd = rtsp_server_fd;
544 poll_entry->events = POLLIN;
547 /* wait for events on each HTTP handle */
554 case HTTPSTATE_SEND_HEADER:
555 case RTSPSTATE_SEND_REPLY:
556 case RTSPSTATE_SEND_PACKET:
557 c->poll_entry = poll_entry;
559 poll_entry->events = POLLOUT;
562 case HTTPSTATE_SEND_DATA_HEADER:
563 case HTTPSTATE_SEND_DATA:
564 case HTTPSTATE_SEND_DATA_TRAILER:
565 if (!c->is_packetized) {
566 /* for TCP, we output as much as we can (may need to put a limit) */
567 c->poll_entry = poll_entry;
569 poll_entry->events = POLLOUT;
572 /* when ffserver is doing the timing, we work by
573 looking at which packet need to be sent every
575 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
580 case HTTPSTATE_WAIT_REQUEST:
581 case HTTPSTATE_RECEIVE_DATA:
582 case HTTPSTATE_WAIT_FEED:
583 case RTSPSTATE_WAIT_REQUEST:
584 /* need to catch errors */
585 c->poll_entry = poll_entry;
587 poll_entry->events = POLLIN;/* Maybe this will work */
591 c->poll_entry = NULL;
597 /* wait for an event on one connection. We poll at least every
598 second to handle timeouts */
600 ret = poll(poll_table, poll_entry - poll_table, delay);
601 if (ret < 0 && ff_neterrno() != FF_NETERROR(EAGAIN) &&
602 ff_neterrno() != FF_NETERROR(EINTR))
606 cur_time = av_gettime() / 1000;
608 if (need_to_start_children) {
609 need_to_start_children = 0;
610 start_children(first_feed);
613 /* now handle the events */
614 for(c = first_http_ctx; c != NULL; c = c_next) {
616 if (handle_connection(c) < 0) {
617 /* close and free the connection */
623 poll_entry = poll_table;
624 /* new HTTP connection request ? */
625 if (poll_entry->revents & POLLIN)
626 new_connection(server_fd, 0);
628 /* new RTSP connection request ? */
629 if (poll_entry->revents & POLLIN)
630 new_connection(rtsp_server_fd, 1);
634 /* start waiting for a new HTTP/RTSP request */
635 static void start_wait_request(HTTPContext *c, int is_rtsp)
637 c->buffer_ptr = c->buffer;
638 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
641 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
642 c->state = RTSPSTATE_WAIT_REQUEST;
644 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
645 c->state = HTTPSTATE_WAIT_REQUEST;
649 static void new_connection(int server_fd, int is_rtsp)
651 struct sockaddr_in from_addr;
653 HTTPContext *c = NULL;
655 len = sizeof(from_addr);
656 fd = accept(server_fd, (struct sockaddr *)&from_addr,
660 ff_socket_nonblock(fd, 1);
662 /* XXX: should output a warning page when coming
663 close to the connection limit */
664 if (nb_connections >= nb_max_connections)
667 /* add a new connection */
668 c = av_mallocz(sizeof(HTTPContext));
673 c->poll_entry = NULL;
674 c->from_addr = from_addr;
675 c->buffer_size = IOBUFFER_INIT_SIZE;
676 c->buffer = av_malloc(c->buffer_size);
680 c->next = first_http_ctx;
684 start_wait_request(c, is_rtsp);
696 static void close_connection(HTTPContext *c)
698 HTTPContext **cp, *c1;
700 AVFormatContext *ctx;
704 /* remove connection from list */
705 cp = &first_http_ctx;
706 while ((*cp) != NULL) {
714 /* remove references, if any (XXX: do it faster) */
715 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
720 /* remove connection associated resources */
724 /* close each frame parser */
725 for(i=0;i<c->fmt_in->nb_streams;i++) {
726 st = c->fmt_in->streams[i];
727 if (st->codec->codec)
728 avcodec_close(st->codec);
730 av_close_input_file(c->fmt_in);
733 /* free RTP output streams if any */
736 nb_streams = c->stream->nb_streams;
738 for(i=0;i<nb_streams;i++) {
741 av_write_trailer(ctx);
744 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 url_close_dyn_buf(ctx->pb, &c->pb_buffer);
761 for(i=0; i<ctx->nb_streams; i++)
762 av_free(ctx->streams[i]);
764 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
765 current_bandwidth -= c->stream->bandwidth;
767 /* signal that there is no feed if we are the feeder socket */
768 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
769 c->stream->feed_opened = 0;
773 av_freep(&c->pb_buffer);
774 av_freep(&c->packet_buffer);
780 static int handle_connection(HTTPContext *c)
785 case HTTPSTATE_WAIT_REQUEST:
786 case RTSPSTATE_WAIT_REQUEST:
788 if ((c->timeout - cur_time) < 0)
790 if (c->poll_entry->revents & (POLLERR | POLLHUP))
793 /* no need to read if no events */
794 if (!(c->poll_entry->revents & POLLIN))
798 len = recv(c->fd, c->buffer_ptr, 1, 0);
800 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
801 ff_neterrno() != FF_NETERROR(EINTR))
803 } else if (len == 0) {
806 /* search for end of request. */
808 c->buffer_ptr += len;
810 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
811 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
812 /* request found : parse it and reply */
813 if (c->state == HTTPSTATE_WAIT_REQUEST) {
814 ret = http_parse_request(c);
816 ret = rtsp_parse_request(c);
820 } else if (ptr >= c->buffer_end) {
821 /* request too long: cannot do anything */
823 } else goto read_loop;
827 case HTTPSTATE_SEND_HEADER:
828 if (c->poll_entry->revents & (POLLERR | POLLHUP))
831 /* no need to write if no events */
832 if (!(c->poll_entry->revents & POLLOUT))
834 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
836 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
837 ff_neterrno() != FF_NETERROR(EINTR)) {
838 /* error : close connection */
839 av_freep(&c->pb_buffer);
843 c->buffer_ptr += len;
845 c->stream->bytes_served += len;
846 c->data_count += len;
847 if (c->buffer_ptr >= c->buffer_end) {
848 av_freep(&c->pb_buffer);
852 /* all the buffer was sent : synchronize to the incoming stream */
853 c->state = HTTPSTATE_SEND_DATA_HEADER;
854 c->buffer_ptr = c->buffer_end = c->buffer;
859 case HTTPSTATE_SEND_DATA:
860 case HTTPSTATE_SEND_DATA_HEADER:
861 case HTTPSTATE_SEND_DATA_TRAILER:
862 /* for packetized output, we consider we can always write (the
863 input streams sets the speed). It may be better to verify
864 that we do not rely too much on the kernel queues */
865 if (!c->is_packetized) {
866 if (c->poll_entry->revents & (POLLERR | POLLHUP))
869 /* no need to read if no events */
870 if (!(c->poll_entry->revents & POLLOUT))
873 if (http_send_data(c) < 0)
875 /* close connection if trailer sent */
876 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
879 case HTTPSTATE_RECEIVE_DATA:
880 /* no need to read if no events */
881 if (c->poll_entry->revents & (POLLERR | POLLHUP))
883 if (!(c->poll_entry->revents & POLLIN))
885 if (http_receive_data(c) < 0)
888 case HTTPSTATE_WAIT_FEED:
889 /* no need to read if no events */
890 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
893 /* nothing to do, we'll be waken up by incoming feed packets */
896 case RTSPSTATE_SEND_REPLY:
897 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
898 av_freep(&c->pb_buffer);
901 /* no need to write if no events */
902 if (!(c->poll_entry->revents & POLLOUT))
904 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
906 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
907 ff_neterrno() != FF_NETERROR(EINTR)) {
908 /* error : close connection */
909 av_freep(&c->pb_buffer);
913 c->buffer_ptr += len;
914 c->data_count += len;
915 if (c->buffer_ptr >= c->buffer_end) {
916 /* all the buffer was sent : wait for a new request */
917 av_freep(&c->pb_buffer);
918 start_wait_request(c, 1);
922 case RTSPSTATE_SEND_PACKET:
923 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
924 av_freep(&c->packet_buffer);
927 /* no need to write if no events */
928 if (!(c->poll_entry->revents & POLLOUT))
930 len = send(c->fd, c->packet_buffer_ptr,
931 c->packet_buffer_end - c->packet_buffer_ptr, 0);
933 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
934 ff_neterrno() != FF_NETERROR(EINTR)) {
935 /* error : close connection */
936 av_freep(&c->packet_buffer);
940 c->packet_buffer_ptr += len;
941 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
942 /* all the buffer was sent : wait for a new request */
943 av_freep(&c->packet_buffer);
944 c->state = RTSPSTATE_WAIT_REQUEST;
948 case HTTPSTATE_READY:
957 static int extract_rates(char *rates, int ratelen, const char *request)
961 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
962 if (strncasecmp(p, "Pragma:", 7) == 0) {
963 const char *q = p + 7;
965 while (*q && *q != '\n' && isspace(*q))
968 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
974 memset(rates, 0xff, ratelen);
977 while (*q && *q != '\n' && *q != ':')
980 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
984 if (stream_no < ratelen && stream_no >= 0)
985 rates[stream_no] = rate_no;
987 while (*q && *q != '\n' && !isspace(*q))
1004 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1007 int best_bitrate = 100000000;
1010 for (i = 0; i < feed->nb_streams; i++) {
1011 AVCodecContext *feed_codec = feed->streams[i]->codec;
1013 if (feed_codec->codec_id != codec->codec_id ||
1014 feed_codec->sample_rate != codec->sample_rate ||
1015 feed_codec->width != codec->width ||
1016 feed_codec->height != codec->height)
1019 /* Potential stream */
1021 /* We want the fastest stream less than bit_rate, or the slowest
1022 * faster than bit_rate
1025 if (feed_codec->bit_rate <= bit_rate) {
1026 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1027 best_bitrate = feed_codec->bit_rate;
1031 if (feed_codec->bit_rate < best_bitrate) {
1032 best_bitrate = feed_codec->bit_rate;
1041 static int modify_current_stream(HTTPContext *c, char *rates)
1044 FFStream *req = c->stream;
1045 int action_required = 0;
1047 /* Not much we can do for a feed */
1051 for (i = 0; i < req->nb_streams; i++) {
1052 AVCodecContext *codec = req->streams[i]->codec;
1056 c->switch_feed_streams[i] = req->feed_streams[i];
1059 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1062 /* Wants off or slow */
1063 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1065 /* This doesn't work well when it turns off the only stream! */
1066 c->switch_feed_streams[i] = -2;
1067 c->feed_streams[i] = -2;
1072 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1073 action_required = 1;
1076 return action_required;
1080 static void do_switch_stream(HTTPContext *c, int i)
1082 if (c->switch_feed_streams[i] >= 0) {
1084 c->feed_streams[i] = c->switch_feed_streams[i];
1087 /* Now update the stream */
1089 c->switch_feed_streams[i] = -1;
1092 /* XXX: factorize in utils.c ? */
1093 /* XXX: take care with different space meaning */
1094 static void skip_spaces(const char **pp)
1098 while (*p == ' ' || *p == '\t')
1103 static void get_word(char *buf, int buf_size, const char **pp)
1111 while (!isspace(*p) && *p != '\0') {
1112 if ((q - buf) < buf_size - 1)
1121 static int validate_acl(FFStream *stream, HTTPContext *c)
1123 enum IPAddressAction last_action = IP_DENY;
1125 struct in_addr *src = &c->from_addr.sin_addr;
1126 unsigned long src_addr = src->s_addr;
1128 for (acl = stream->acl; acl; acl = acl->next) {
1129 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1130 return (acl->action == IP_ALLOW) ? 1 : 0;
1131 last_action = acl->action;
1134 /* Nothing matched, so return not the last action */
1135 return (last_action == IP_DENY) ? 1 : 0;
1138 /* compute the real filename of a file by matching it without its
1139 extensions to all the stream filenames */
1140 static void compute_real_filename(char *filename, int max_size)
1147 /* compute filename by matching without the file extensions */
1148 av_strlcpy(file1, filename, sizeof(file1));
1149 p = strrchr(file1, '.');
1152 for(stream = first_stream; stream != NULL; stream = stream->next) {
1153 av_strlcpy(file2, stream->filename, sizeof(file2));
1154 p = strrchr(file2, '.');
1157 if (!strcmp(file1, file2)) {
1158 av_strlcpy(filename, stream->filename, max_size);
1173 /* parse http request and prepare header */
1174 static int http_parse_request(HTTPContext *c)
1177 enum RedirType redir_type;
1179 char info[1024], filename[1024];
1183 const char *mime_type;
1187 char *useragent = 0;
1190 get_word(cmd, sizeof(cmd), (const char **)&p);
1191 av_strlcpy(c->method, cmd, sizeof(c->method));
1193 if (!strcmp(cmd, "GET"))
1195 else if (!strcmp(cmd, "POST"))
1200 get_word(url, sizeof(url), (const char **)&p);
1201 av_strlcpy(c->url, url, sizeof(c->url));
1203 get_word(protocol, sizeof(protocol), (const char **)&p);
1204 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1207 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1210 http_log("New connection: %s %s\n", cmd, url);
1212 /* find the filename and the optional info string in the request */
1213 p = strchr(url, '?');
1215 av_strlcpy(info, p, sizeof(info));
1220 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1222 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1223 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1225 if (*useragent && *useragent != '\n' && isspace(*useragent))
1229 p = strchr(p, '\n');
1236 redir_type = REDIR_NONE;
1237 if (match_ext(filename, "asx")) {
1238 redir_type = REDIR_ASX;
1239 filename[strlen(filename)-1] = 'f';
1240 } else if (match_ext(filename, "asf") &&
1241 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1242 /* if this isn't WMP or lookalike, return the redirector file */
1243 redir_type = REDIR_ASF;
1244 } else if (match_ext(filename, "rpm,ram")) {
1245 redir_type = REDIR_RAM;
1246 strcpy(filename + strlen(filename)-2, "m");
1247 } else if (match_ext(filename, "rtsp")) {
1248 redir_type = REDIR_RTSP;
1249 compute_real_filename(filename, sizeof(filename) - 1);
1250 } else if (match_ext(filename, "sdp")) {
1251 redir_type = REDIR_SDP;
1252 compute_real_filename(filename, sizeof(filename) - 1);
1255 // "redirect" / request to index.html
1256 if (!strlen(filename))
1257 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1259 stream = first_stream;
1260 while (stream != NULL) {
1261 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1263 stream = stream->next;
1265 if (stream == NULL) {
1266 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1271 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1272 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1274 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1275 c->http_error = 301;
1277 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 301 Moved\r\n");
1278 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Location: %s\r\n", stream->feed_filename);
1279 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: text/html\r\n");
1280 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1281 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<html><head><title>Moved</title></head><body>\r\n");
1282 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "You should be <a href=\"%s\">redirected</a>.\r\n", stream->feed_filename);
1283 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</body></html>\r\n");
1285 /* prepare output buffer */
1286 c->buffer_ptr = c->buffer;
1288 c->state = HTTPSTATE_SEND_HEADER;
1292 /* If this is WMP, get the rate information */
1293 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1294 if (modify_current_stream(c, ratebuf)) {
1295 for (i = 0; i < sizeof(c->feed_streams) / sizeof(c->feed_streams[0]); i++) {
1296 if (c->switch_feed_streams[i] >= 0)
1297 do_switch_stream(c, i);
1302 /* If already streaming this feed, do not let start another feeder. */
1303 if (stream->feed_opened) {
1304 snprintf(msg, sizeof(msg), "This feed is already being received.");
1308 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1309 current_bandwidth += stream->bandwidth;
1311 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1312 c->http_error = 200;
1314 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 Server too busy\r\n");
1315 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: text/html\r\n");
1316 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1317 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<html><head><title>Too busy</title></head><body>\r\n");
1318 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<p>The server is too busy to serve your request at this time.</p>\r\n");
1319 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<p>The bandwidth being served (including your stream) is %dkbit/sec, and this exceeds the limit of %dkbit/sec.</p>\r\n",
1320 current_bandwidth, max_bandwidth);
1321 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</body></html>\r\n");
1323 /* prepare output buffer */
1324 c->buffer_ptr = c->buffer;
1326 c->state = HTTPSTATE_SEND_HEADER;
1330 if (redir_type != REDIR_NONE) {
1333 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1334 if (strncasecmp(p, "Host:", 5) == 0) {
1338 p = strchr(p, '\n');
1349 while (isspace(*hostinfo))
1352 eoh = strchr(hostinfo, '\n');
1354 if (eoh[-1] == '\r')
1357 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1358 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1359 hostbuf[eoh - hostinfo] = 0;
1361 c->http_error = 200;
1363 switch(redir_type) {
1365 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 ASX Follows\r\n");
1366 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: video/x-ms-asf\r\n");
1367 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1368 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<ASX Version=\"3\">\r\n");
1369 //q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<!-- Autogenerated by ffserver -->\r\n");
1370 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n",
1371 hostbuf, filename, info);
1372 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</ASX>\r\n");
1375 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 RAM Follows\r\n");
1376 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: audio/x-pn-realaudio\r\n");
1377 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1378 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "# Autogenerated by ffserver\r\n");
1379 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "http://%s/%s%s\r\n",
1380 hostbuf, filename, info);
1383 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 ASF Redirect follows\r\n");
1384 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: video/x-ms-asf\r\n");
1385 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1386 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "[Reference]\r\n");
1387 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Ref1=http://%s/%s%s\r\n",
1388 hostbuf, filename, info);
1392 char hostname[256], *p;
1393 /* extract only hostname */
1394 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1395 p = strrchr(hostname, ':');
1398 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 RTSP Redirect follows\r\n");
1399 /* XXX: incorrect mime type ? */
1400 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: application/x-rtsp\r\n");
1401 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1402 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "rtsp://%s:%d/%s\r\n",
1403 hostname, ntohs(my_rtsp_addr.sin_port),
1410 int sdp_data_size, len;
1411 struct sockaddr_in my_addr;
1413 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1414 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: application/sdp\r\n");
1415 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1417 len = sizeof(my_addr);
1418 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1420 /* XXX: should use a dynamic buffer */
1421 sdp_data_size = prepare_sdp_description(stream,
1424 if (sdp_data_size > 0) {
1425 memcpy(q, sdp_data, sdp_data_size);
1437 /* prepare output buffer */
1438 c->buffer_ptr = c->buffer;
1440 c->state = HTTPSTATE_SEND_HEADER;
1446 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1450 stream->conns_served++;
1452 /* XXX: add there authenticate and IP match */
1455 /* if post, it means a feed is being sent */
1456 if (!stream->is_feed) {
1457 /* However it might be a status report from WMP! Lets log the data
1458 * as it might come in handy one day
1463 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1464 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1468 if (strncasecmp(p, "Pragma: client-id=", 18) == 0)
1469 client_id = strtol(p + 18, 0, 10);
1470 p = strchr(p, '\n');
1478 char *eol = strchr(logline, '\n');
1483 if (eol[-1] == '\r')
1485 http_log("%.*s\n", (int) (eol - logline), logline);
1486 c->suppress_log = 1;
1491 http_log("\nGot request:\n%s\n", c->buffer);
1494 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1497 /* Now we have to find the client_id */
1498 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1499 if (wmpc->wmp_client_id == client_id)
1503 if (wmpc && modify_current_stream(wmpc, ratebuf))
1504 wmpc->switch_pending = 1;
1507 snprintf(msg, sizeof(msg), "POST command not handled");
1511 if (http_start_receive_data(c) < 0) {
1512 snprintf(msg, sizeof(msg), "could not open feed");
1516 c->state = HTTPSTATE_RECEIVE_DATA;
1521 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1522 http_log("\nGot request:\n%s\n", c->buffer);
1525 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1528 /* open input stream */
1529 if (open_input_stream(c, info) < 0) {
1530 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1534 /* prepare http header */
1536 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1537 mime_type = c->stream->fmt->mime_type;
1539 mime_type = "application/x-octet-stream";
1540 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
1542 /* for asf, we need extra headers */
1543 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1544 /* Need to allocate a client id */
1546 c->wmp_client_id = av_random(&random_state) & 0x7fffffff;
1548 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "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);
1550 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1551 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1553 /* prepare output buffer */
1555 c->buffer_ptr = c->buffer;
1557 c->state = HTTPSTATE_SEND_HEADER;
1560 c->http_error = 404;
1562 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 404 Not Found\r\n");
1563 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: %s\r\n", "text/html");
1564 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1565 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<HTML>\n");
1566 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<HEAD><TITLE>404 Not Found</TITLE></HEAD>\n");
1567 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<BODY>%s</BODY>\n", msg);
1568 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</HTML>\n");
1570 /* prepare output buffer */
1571 c->buffer_ptr = c->buffer;
1573 c->state = HTTPSTATE_SEND_HEADER;
1577 c->http_error = 200; /* horrible : we use this value to avoid
1578 going to the send data state */
1579 c->state = HTTPSTATE_SEND_HEADER;
1583 static void fmt_bytecount(ByteIOContext *pb, int64_t count)
1585 static const char *suffix = " kMGTP";
1588 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1590 url_fprintf(pb, "%"PRId64"%c", count, *s);
1593 static void compute_stats(HTTPContext *c)
1602 if (url_open_dyn_buf(&pb) < 0) {
1603 /* XXX: return an error ? */
1604 c->buffer_ptr = c->buffer;
1605 c->buffer_end = c->buffer;
1609 url_fprintf(pb, "HTTP/1.0 200 OK\r\n");
1610 url_fprintf(pb, "Content-type: %s\r\n", "text/html");
1611 url_fprintf(pb, "Pragma: no-cache\r\n");
1612 url_fprintf(pb, "\r\n");
1614 url_fprintf(pb, "<HEAD><TITLE>FFServer Status</TITLE>\n");
1615 if (c->stream->feed_filename)
1616 url_fprintf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1617 url_fprintf(pb, "</HEAD>\n<BODY>");
1618 url_fprintf(pb, "<H1>FFServer Status</H1>\n");
1620 url_fprintf(pb, "<H2>Available Streams</H2>\n");
1621 url_fprintf(pb, "<TABLE cellspacing=0 cellpadding=4>\n");
1622 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");
1623 stream = first_stream;
1624 while (stream != NULL) {
1625 char sfilename[1024];
1628 if (stream->feed != stream) {
1629 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1630 eosf = sfilename + strlen(sfilename);
1631 if (eosf - sfilename >= 4) {
1632 if (strcmp(eosf - 4, ".asf") == 0)
1633 strcpy(eosf - 4, ".asx");
1634 else if (strcmp(eosf - 3, ".rm") == 0)
1635 strcpy(eosf - 3, ".ram");
1636 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1637 /* generate a sample RTSP director if
1638 unicast. Generate an SDP redirector if
1640 eosf = strrchr(sfilename, '.');
1642 eosf = sfilename + strlen(sfilename);
1643 if (stream->is_multicast)
1644 strcpy(eosf, ".sdp");
1646 strcpy(eosf, ".rtsp");
1650 url_fprintf(pb, "<TR><TD><A HREF=\"/%s\">%s</A> ",
1651 sfilename, stream->filename);
1652 url_fprintf(pb, "<td align=right> %d <td align=right> ",
1653 stream->conns_served);
1654 fmt_bytecount(pb, stream->bytes_served);
1655 switch(stream->stream_type) {
1656 case STREAM_TYPE_LIVE:
1658 int audio_bit_rate = 0;
1659 int video_bit_rate = 0;
1660 const char *audio_codec_name = "";
1661 const char *video_codec_name = "";
1662 const char *audio_codec_name_extra = "";
1663 const char *video_codec_name_extra = "";
1665 for(i=0;i<stream->nb_streams;i++) {
1666 AVStream *st = stream->streams[i];
1667 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1668 switch(st->codec->codec_type) {
1669 case CODEC_TYPE_AUDIO:
1670 audio_bit_rate += st->codec->bit_rate;
1672 if (*audio_codec_name)
1673 audio_codec_name_extra = "...";
1674 audio_codec_name = codec->name;
1677 case CODEC_TYPE_VIDEO:
1678 video_bit_rate += st->codec->bit_rate;
1680 if (*video_codec_name)
1681 video_codec_name_extra = "...";
1682 video_codec_name = codec->name;
1685 case CODEC_TYPE_DATA:
1686 video_bit_rate += st->codec->bit_rate;
1692 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",
1695 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1696 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
1698 url_fprintf(pb, "<TD>%s", stream->feed->filename);
1700 url_fprintf(pb, "<TD>%s", stream->feed_filename);
1701 url_fprintf(pb, "\n");
1705 url_fprintf(pb, "<TD align=center> - <TD align=right> - <TD align=right> - <td><td align=right> - <TD>\n");
1709 stream = stream->next;
1711 url_fprintf(pb, "</TABLE>\n");
1713 stream = first_stream;
1714 while (stream != NULL) {
1715 if (stream->feed == stream) {
1716 url_fprintf(pb, "<h2>Feed %s</h2>", stream->filename);
1718 url_fprintf(pb, "Running as pid %d.\n", stream->pid);
1720 #if defined(linux) && !defined(CONFIG_NOCUTILS)
1725 /* This is somewhat linux specific I guess */
1726 snprintf(ps_cmd, sizeof(ps_cmd),
1727 "ps -o \"%%cpu,cputime\" --no-headers %d",
1730 pid_stat = popen(ps_cmd, "r");
1735 if (fscanf(pid_stat, "%10s %64s", cpuperc,
1737 url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
1745 url_fprintf(pb, "<p>");
1747 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");
1749 for (i = 0; i < stream->nb_streams; i++) {
1750 AVStream *st = stream->streams[i];
1751 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1752 const char *type = "unknown";
1753 char parameters[64];
1757 switch(st->codec->codec_type) {
1758 case CODEC_TYPE_AUDIO:
1760 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
1762 case CODEC_TYPE_VIDEO:
1764 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
1765 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
1770 url_fprintf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
1771 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
1773 url_fprintf(pb, "</table>\n");
1776 stream = stream->next;
1782 AVCodecContext *enc;
1786 stream = first_feed;
1787 while (stream != NULL) {
1788 url_fprintf(pb, "<H1>Feed '%s'</H1>\n", stream->filename);
1789 url_fprintf(pb, "<TABLE>\n");
1790 url_fprintf(pb, "<TR><TD>Parameters<TD>Frame count<TD>Size<TD>Avg bitrate (kbits/s)\n");
1791 for(i=0;i<stream->nb_streams;i++) {
1792 AVStream *st = stream->streams[i];
1793 FeedData *fdata = st->priv_data;
1796 avcodec_string(buf, sizeof(buf), enc);
1797 avg = fdata->avg_frame_size * (float)enc->rate * 8.0;
1798 if (enc->codec->type == CODEC_TYPE_AUDIO && enc->frame_size > 0)
1799 avg /= enc->frame_size;
1800 url_fprintf(pb, "<TR><TD>%s <TD> %d <TD> %"PRId64" <TD> %0.1f\n",
1801 buf, enc->frame_number, fdata->data_count, avg / 1000.0);
1803 url_fprintf(pb, "</TABLE>\n");
1804 stream = stream->next_feed;
1809 /* connection status */
1810 url_fprintf(pb, "<H2>Connection Status</H2>\n");
1812 url_fprintf(pb, "Number of connections: %d / %d<BR>\n",
1813 nb_connections, nb_max_connections);
1815 url_fprintf(pb, "Bandwidth in use: %dk / %dk<BR>\n",
1816 current_bandwidth, max_bandwidth);
1818 url_fprintf(pb, "<TABLE>\n");
1819 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");
1820 c1 = first_http_ctx;
1822 while (c1 != NULL) {
1828 for (j = 0; j < c1->stream->nb_streams; j++) {
1829 if (!c1->stream->feed)
1830 bitrate += c1->stream->streams[j]->codec->bit_rate;
1831 else if (c1->feed_streams[j] >= 0)
1832 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
1837 p = inet_ntoa(c1->from_addr.sin_addr);
1838 url_fprintf(pb, "<TR><TD><B>%d</B><TD>%s%s<TD>%s<TD>%s<TD>%s<td align=right>",
1840 c1->stream ? c1->stream->filename : "",
1841 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
1844 http_state[c1->state]);
1845 fmt_bytecount(pb, bitrate);
1846 url_fprintf(pb, "<td align=right>");
1847 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
1848 url_fprintf(pb, "<td align=right>");
1849 fmt_bytecount(pb, c1->data_count);
1850 url_fprintf(pb, "\n");
1853 url_fprintf(pb, "</TABLE>\n");
1858 url_fprintf(pb, "<HR size=1 noshade>Generated at %s", p);
1859 url_fprintf(pb, "</BODY>\n</HTML>\n");
1861 len = url_close_dyn_buf(pb, &c->pb_buffer);
1862 c->buffer_ptr = c->pb_buffer;
1863 c->buffer_end = c->pb_buffer + len;
1866 /* check if the parser needs to be opened for stream i */
1867 static void open_parser(AVFormatContext *s, int i)
1869 AVStream *st = s->streams[i];
1872 if (!st->codec->codec) {
1873 codec = avcodec_find_decoder(st->codec->codec_id);
1874 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
1875 st->codec->parse_only = 1;
1876 if (avcodec_open(st->codec, codec) < 0)
1877 st->codec->parse_only = 0;
1882 static int open_input_stream(HTTPContext *c, const char *info)
1885 char input_filename[1024];
1890 /* find file name */
1891 if (c->stream->feed) {
1892 strcpy(input_filename, c->stream->feed->feed_filename);
1893 buf_size = FFM_PACKET_SIZE;
1894 /* compute position (absolute time) */
1895 if (find_info_tag(buf, sizeof(buf), "date", info))
1897 stream_pos = parse_date(buf, 0);
1898 if (stream_pos == INT64_MIN)
1901 else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
1902 int prebuffer = strtol(buf, 0, 10);
1903 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
1905 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
1907 strcpy(input_filename, c->stream->feed_filename);
1909 /* compute position (relative time) */
1910 if (find_info_tag(buf, sizeof(buf), "date", info))
1912 stream_pos = parse_date(buf, 1);
1913 if (stream_pos == INT64_MIN)
1919 if (input_filename[0] == '\0')
1923 { time_t when = stream_pos / 1000000;
1924 http_log("Stream pos = %"PRId64", time=%s", stream_pos, ctime(&when));
1929 if (av_open_input_file(&s, input_filename, c->stream->ifmt,
1930 buf_size, c->stream->ap_in) < 0) {
1931 http_log("%s not found", input_filename);
1934 s->flags |= AVFMT_FLAG_GENPTS;
1936 av_find_stream_info(c->fmt_in);
1938 /* open each parser */
1939 for(i=0;i<s->nb_streams;i++)
1942 /* choose stream as clock source (we favorize video stream if
1943 present) for packet sending */
1944 c->pts_stream_index = 0;
1945 for(i=0;i<c->stream->nb_streams;i++) {
1946 if (c->pts_stream_index == 0 &&
1947 c->stream->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO) {
1948 c->pts_stream_index = i;
1953 if (c->fmt_in->iformat->read_seek)
1954 c->fmt_in->iformat->read_seek(c->fmt_in, 0, stream_pos, 0);
1956 /* set the start time (needed for maxtime and RTP packet timing) */
1957 c->start_time = cur_time;
1958 c->first_pts = AV_NOPTS_VALUE;
1962 /* return the server clock (in us) */
1963 static int64_t get_server_clock(HTTPContext *c)
1965 /* compute current pts value from system time */
1966 return (cur_time - c->start_time) * 1000;
1969 /* return the estimated time at which the current packet must be sent
1971 static int64_t get_packet_send_clock(HTTPContext *c)
1973 int bytes_left, bytes_sent, frame_bytes;
1975 frame_bytes = c->cur_frame_bytes;
1976 if (frame_bytes <= 0)
1979 bytes_left = c->buffer_end - c->buffer_ptr;
1980 bytes_sent = frame_bytes - bytes_left;
1981 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
1986 static int http_prepare_data(HTTPContext *c)
1989 AVFormatContext *ctx;
1991 av_freep(&c->pb_buffer);
1993 case HTTPSTATE_SEND_DATA_HEADER:
1994 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
1995 av_strlcpy(c->fmt_ctx.author, c->stream->author,
1996 sizeof(c->fmt_ctx.author));
1997 av_strlcpy(c->fmt_ctx.comment, c->stream->comment,
1998 sizeof(c->fmt_ctx.comment));
1999 av_strlcpy(c->fmt_ctx.copyright, c->stream->copyright,
2000 sizeof(c->fmt_ctx.copyright));
2001 av_strlcpy(c->fmt_ctx.title, c->stream->title,
2002 sizeof(c->fmt_ctx.title));
2004 /* open output stream by using specified codecs */
2005 c->fmt_ctx.oformat = c->stream->fmt;
2006 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2007 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
2010 st = av_mallocz(sizeof(AVStream));
2011 st->codec= avcodec_alloc_context();
2012 c->fmt_ctx.streams[i] = st;
2013 /* if file or feed, then just take streams from FFStream struct */
2014 if (!c->stream->feed ||
2015 c->stream->feed == c->stream)
2016 src = c->stream->streams[i];
2018 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2022 st->codec->frame_number = 0; /* XXX: should be done in
2023 AVStream, not in codec */
2024 /* I'm pretty sure that this is not correct...
2025 * However, without it, we crash
2027 st->codec->coded_frame = &dummy_frame;
2029 c->got_key_frame = 0;
2031 /* prepare header and save header data in a stream */
2032 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2033 /* XXX: potential leak */
2036 c->fmt_ctx.pb->is_streamed = 1;
2038 av_set_parameters(&c->fmt_ctx, NULL);
2039 if (av_write_header(&c->fmt_ctx) < 0)
2042 len = url_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2043 c->buffer_ptr = c->pb_buffer;
2044 c->buffer_end = c->pb_buffer + len;
2046 c->state = HTTPSTATE_SEND_DATA;
2047 c->last_packet_sent = 0;
2049 case HTTPSTATE_SEND_DATA:
2050 /* find a new packet */
2054 /* read a packet from the input stream */
2055 if (c->stream->feed)
2056 ffm_set_write_index(c->fmt_in,
2057 c->stream->feed->feed_write_index,
2058 c->stream->feed->feed_size);
2060 if (c->stream->max_time &&
2061 c->stream->max_time + c->start_time - cur_time < 0)
2062 /* We have timed out */
2063 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2066 if (av_read_frame(c->fmt_in, &pkt) < 0) {
2067 if (c->stream->feed && c->stream->feed->feed_opened) {
2068 /* if coming from feed, it means we reached the end of the
2069 ffm file, so must wait for more data */
2070 c->state = HTTPSTATE_WAIT_FEED;
2071 return 1; /* state changed */
2073 if (c->stream->loop) {
2074 av_close_input_file(c->fmt_in);
2076 if (open_input_stream(c, "") < 0)
2081 /* must send trailer now because eof or error */
2082 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2086 /* update first pts if needed */
2087 if (c->first_pts == AV_NOPTS_VALUE) {
2088 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2089 c->start_time = cur_time;
2091 /* send it to the appropriate stream */
2092 if (c->stream->feed) {
2093 /* if coming from a feed, select the right stream */
2094 if (c->switch_pending) {
2095 c->switch_pending = 0;
2096 for(i=0;i<c->stream->nb_streams;i++) {
2097 if (c->switch_feed_streams[i] == pkt.stream_index)
2098 if (pkt.flags & PKT_FLAG_KEY)
2099 do_switch_stream(c, i);
2100 if (c->switch_feed_streams[i] >= 0)
2101 c->switch_pending = 1;
2104 for(i=0;i<c->stream->nb_streams;i++) {
2105 if (c->feed_streams[i] == pkt.stream_index) {
2106 pkt.stream_index = i;
2107 if (pkt.flags & PKT_FLAG_KEY)
2108 c->got_key_frame |= 1 << i;
2109 /* See if we have all the key frames, then
2110 * we start to send. This logic is not quite
2111 * right, but it works for the case of a
2112 * single video stream with one or more
2113 * audio streams (for which every frame is
2114 * typically a key frame).
2116 if (!c->stream->send_on_key ||
2117 ((c->got_key_frame + 1) >> c->stream->nb_streams))
2122 AVCodecContext *codec;
2125 /* specific handling for RTP: we use several
2126 output stream (one for each RTP
2127 connection). XXX: need more abstract handling */
2128 if (c->is_packetized) {
2130 /* compute send time and duration */
2131 st = c->fmt_in->streams[pkt.stream_index];
2132 c->cur_pts = av_rescale_q(pkt.dts, st->time_base, AV_TIME_BASE_Q);
2133 if (st->start_time != AV_NOPTS_VALUE)
2134 c->cur_pts -= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
2135 c->cur_frame_duration = av_rescale_q(pkt.duration, st->time_base, AV_TIME_BASE_Q);
2137 printf("index=%d pts=%0.3f duration=%0.6f\n",
2139 (double)c->cur_pts /
2141 (double)c->cur_frame_duration /
2144 /* find RTP context */
2145 c->packet_stream_index = pkt.stream_index;
2146 ctx = c->rtp_ctx[c->packet_stream_index];
2148 av_free_packet(&pkt);
2151 codec = ctx->streams[0]->codec;
2152 /* only one stream per RTP connection */
2153 pkt.stream_index = 0;
2157 codec = ctx->streams[pkt.stream_index]->codec;
2160 codec->coded_frame->key_frame = ((pkt.flags & PKT_FLAG_KEY) != 0);
2161 if (c->is_packetized) {
2162 int max_packet_size;
2163 if (c->rtp_protocol == RTSP_PROTOCOL_RTP_TCP)
2164 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2166 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
2167 ret = url_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2169 ret = url_open_dyn_buf(&ctx->pb);
2172 /* XXX: potential leak */
2175 if (pkt.dts != AV_NOPTS_VALUE)
2176 pkt.dts = av_rescale_q(pkt.dts,
2177 c->fmt_in->streams[pkt.stream_index]->time_base,
2178 ctx->streams[pkt.stream_index]->time_base);
2179 if (pkt.pts != AV_NOPTS_VALUE)
2180 pkt.pts = av_rescale_q(pkt.pts,
2181 c->fmt_in->streams[pkt.stream_index]->time_base,
2182 ctx->streams[pkt.stream_index]->time_base);
2183 if (av_write_frame(ctx, &pkt))
2184 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2186 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2187 c->cur_frame_bytes = len;
2188 c->buffer_ptr = c->pb_buffer;
2189 c->buffer_end = c->pb_buffer + len;
2191 codec->frame_number++;
2195 av_free_packet(&pkt);
2201 case HTTPSTATE_SEND_DATA_TRAILER:
2202 /* last packet test ? */
2203 if (c->last_packet_sent || c->is_packetized)
2206 /* prepare header */
2207 if (url_open_dyn_buf(&ctx->pb) < 0) {
2208 /* XXX: potential leak */
2211 av_write_trailer(ctx);
2212 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2213 c->buffer_ptr = c->pb_buffer;
2214 c->buffer_end = c->pb_buffer + len;
2216 c->last_packet_sent = 1;
2222 /* should convert the format at the same time */
2223 /* send data starting at c->buffer_ptr to the output connection
2224 (either UDP or TCP connection) */
2225 static int http_send_data(HTTPContext *c)
2230 if (c->buffer_ptr >= c->buffer_end) {
2231 ret = http_prepare_data(c);
2235 /* state change requested */
2238 if (c->is_packetized) {
2239 /* RTP data output */
2240 len = c->buffer_end - c->buffer_ptr;
2242 /* fail safe - should never happen */
2244 c->buffer_ptr = c->buffer_end;
2247 len = (c->buffer_ptr[0] << 24) |
2248 (c->buffer_ptr[1] << 16) |
2249 (c->buffer_ptr[2] << 8) |
2251 if (len > (c->buffer_end - c->buffer_ptr))
2253 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2254 /* nothing to send yet: we can wait */
2258 c->data_count += len;
2259 update_datarate(&c->datarate, c->data_count);
2261 c->stream->bytes_served += len;
2263 if (c->rtp_protocol == RTSP_PROTOCOL_RTP_TCP) {
2264 /* RTP packets are sent inside the RTSP TCP connection */
2266 int interleaved_index, size;
2268 HTTPContext *rtsp_c;
2271 /* if no RTSP connection left, error */
2274 /* if already sending something, then wait. */
2275 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2277 if (url_open_dyn_buf(&pb) < 0)
2279 interleaved_index = c->packet_stream_index * 2;
2280 /* RTCP packets are sent at odd indexes */
2281 if (c->buffer_ptr[1] == 200)
2282 interleaved_index++;
2283 /* write RTSP TCP header */
2285 header[1] = interleaved_index;
2286 header[2] = len >> 8;
2288 put_buffer(pb, header, 4);
2289 /* write RTP packet data */
2291 put_buffer(pb, c->buffer_ptr, len);
2292 size = url_close_dyn_buf(pb, &c->packet_buffer);
2293 /* prepare asynchronous TCP sending */
2294 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2295 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2296 c->buffer_ptr += len;
2298 /* send everything we can NOW */
2299 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2300 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2302 rtsp_c->packet_buffer_ptr += len;
2303 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2304 /* if we could not send all the data, we will
2305 send it later, so a new state is needed to
2306 "lock" the RTSP TCP connection */
2307 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2310 /* all data has been sent */
2311 av_freep(&c->packet_buffer);
2313 /* send RTP packet directly in UDP */
2315 url_write(c->rtp_handles[c->packet_stream_index],
2316 c->buffer_ptr, len);
2317 c->buffer_ptr += len;
2318 /* here we continue as we can send several packets per 10 ms slot */
2321 /* TCP data output */
2322 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2324 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2325 ff_neterrno() != FF_NETERROR(EINTR))
2326 /* error : close connection */
2331 c->buffer_ptr += len;
2333 c->data_count += len;
2334 update_datarate(&c->datarate, c->data_count);
2336 c->stream->bytes_served += len;
2344 static int http_start_receive_data(HTTPContext *c)
2348 if (c->stream->feed_opened)
2351 /* Don't permit writing to this one */
2352 if (c->stream->readonly)
2356 fd = open(c->stream->feed_filename, O_RDWR);
2361 c->stream->feed_write_index = ffm_read_write_index(fd);
2362 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2363 lseek(fd, 0, SEEK_SET);
2365 /* init buffer input */
2366 c->buffer_ptr = c->buffer;
2367 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2368 c->stream->feed_opened = 1;
2372 static int http_receive_data(HTTPContext *c)
2376 if (c->buffer_end > c->buffer_ptr) {
2379 len = recv(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2381 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2382 ff_neterrno() != FF_NETERROR(EINTR))
2383 /* error : close connection */
2385 } else if (len == 0)
2386 /* end of connection : close it */
2389 c->buffer_ptr += len;
2390 c->data_count += len;
2391 update_datarate(&c->datarate, c->data_count);
2395 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2396 if (c->buffer[0] != 'f' ||
2397 c->buffer[1] != 'm') {
2398 http_log("Feed stream has become desynchronized -- disconnecting\n");
2403 if (c->buffer_ptr >= c->buffer_end) {
2404 FFStream *feed = c->stream;
2405 /* a packet has been received : write it in the store, except
2407 if (c->data_count > FFM_PACKET_SIZE) {
2409 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
2410 /* XXX: use llseek or url_seek */
2411 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2412 write(c->feed_fd, c->buffer, FFM_PACKET_SIZE);
2414 feed->feed_write_index += FFM_PACKET_SIZE;
2415 /* update file size */
2416 if (feed->feed_write_index > c->stream->feed_size)
2417 feed->feed_size = feed->feed_write_index;
2419 /* handle wrap around if max file size reached */
2420 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2421 feed->feed_write_index = FFM_PACKET_SIZE;
2424 ffm_write_write_index(c->feed_fd, feed->feed_write_index);
2426 /* wake up any waiting connections */
2427 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2428 if (c1->state == HTTPSTATE_WAIT_FEED &&
2429 c1->stream->feed == c->stream->feed)
2430 c1->state = HTTPSTATE_SEND_DATA;
2433 /* We have a header in our hands that contains useful data */
2435 AVInputFormat *fmt_in;
2438 memset(&s, 0, sizeof(s));
2440 url_open_buf(&s.pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
2441 s.pb->buf_end = c->buffer_end; /* ?? */
2442 s.pb->is_streamed = 1;
2444 /* use feed output format name to find corresponding input format */
2445 fmt_in = av_find_input_format(feed->fmt->name);
2449 if (fmt_in->priv_data_size > 0) {
2450 s.priv_data = av_mallocz(fmt_in->priv_data_size);
2456 if (fmt_in->read_header(&s, 0) < 0) {
2457 av_freep(&s.priv_data);
2461 /* Now we have the actual streams */
2462 if (s.nb_streams != feed->nb_streams) {
2463 av_freep(&s.priv_data);
2466 for (i = 0; i < s.nb_streams; i++)
2467 memcpy(feed->streams[i]->codec,
2468 s.streams[i]->codec, sizeof(AVCodecContext));
2469 av_freep(&s.priv_data);
2471 c->buffer_ptr = c->buffer;
2476 c->stream->feed_opened = 0;
2481 /********************************************************************/
2484 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2491 switch(error_number) {
2492 case RTSP_STATUS_OK:
2495 case RTSP_STATUS_METHOD:
2496 str = "Method Not Allowed";
2498 case RTSP_STATUS_BANDWIDTH:
2499 str = "Not Enough Bandwidth";
2501 case RTSP_STATUS_SESSION:
2502 str = "Session Not Found";
2504 case RTSP_STATUS_STATE:
2505 str = "Method Not Valid in This State";
2507 case RTSP_STATUS_AGGREGATE:
2508 str = "Aggregate operation not allowed";
2510 case RTSP_STATUS_ONLY_AGGREGATE:
2511 str = "Only aggregate operation allowed";
2513 case RTSP_STATUS_TRANSPORT:
2514 str = "Unsupported transport";
2516 case RTSP_STATUS_INTERNAL:
2517 str = "Internal Server Error";
2519 case RTSP_STATUS_SERVICE:
2520 str = "Service Unavailable";
2522 case RTSP_STATUS_VERSION:
2523 str = "RTSP Version not supported";
2526 str = "Unknown Error";
2530 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2531 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2533 /* output GMT time */
2537 p = buf2 + strlen(p) - 1;
2540 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2543 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2545 rtsp_reply_header(c, error_number);
2546 url_fprintf(c->pb, "\r\n");
2549 static int rtsp_parse_request(HTTPContext *c)
2551 const char *p, *p1, *p2;
2557 RTSPHeader header1, *header = &header1;
2559 c->buffer_ptr[0] = '\0';
2562 get_word(cmd, sizeof(cmd), &p);
2563 get_word(url, sizeof(url), &p);
2564 get_word(protocol, sizeof(protocol), &p);
2566 av_strlcpy(c->method, cmd, sizeof(c->method));
2567 av_strlcpy(c->url, url, sizeof(c->url));
2568 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2570 if (url_open_dyn_buf(&c->pb) < 0) {
2571 /* XXX: cannot do more */
2572 c->pb = NULL; /* safety */
2576 /* check version name */
2577 if (strcmp(protocol, "RTSP/1.0") != 0) {
2578 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2582 /* parse each header line */
2583 memset(header, 0, sizeof(RTSPHeader));
2584 /* skip to next line */
2585 while (*p != '\n' && *p != '\0')
2589 while (*p != '\0') {
2590 p1 = strchr(p, '\n');
2594 if (p2 > p && p2[-1] == '\r')
2596 /* skip empty line */
2600 if (len > sizeof(line) - 1)
2601 len = sizeof(line) - 1;
2602 memcpy(line, p, len);
2604 rtsp_parse_line(header, line);
2608 /* handle sequence number */
2609 c->seq = header->seq;
2611 if (!strcmp(cmd, "DESCRIBE"))
2612 rtsp_cmd_describe(c, url);
2613 else if (!strcmp(cmd, "OPTIONS"))
2614 rtsp_cmd_options(c, url);
2615 else if (!strcmp(cmd, "SETUP"))
2616 rtsp_cmd_setup(c, url, header);
2617 else if (!strcmp(cmd, "PLAY"))
2618 rtsp_cmd_play(c, url, header);
2619 else if (!strcmp(cmd, "PAUSE"))
2620 rtsp_cmd_pause(c, url, header);
2621 else if (!strcmp(cmd, "TEARDOWN"))
2622 rtsp_cmd_teardown(c, url, header);
2624 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2627 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2628 c->pb = NULL; /* safety */
2630 /* XXX: cannot do more */
2633 c->buffer_ptr = c->pb_buffer;
2634 c->buffer_end = c->pb_buffer + len;
2635 c->state = RTSPSTATE_SEND_REPLY;
2639 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2640 struct in_addr my_ip)
2642 AVFormatContext *avc;
2643 AVStream avs[MAX_STREAMS];
2646 avc = av_alloc_format_context();
2650 if (stream->title[0] != 0) {
2651 av_strlcpy(avc->title, stream->title, sizeof(avc->title));
2653 av_strlcpy(avc->title, "No Title", sizeof(avc->title));
2655 avc->nb_streams = stream->nb_streams;
2656 if (stream->is_multicast) {
2657 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2658 inet_ntoa(stream->multicast_ip),
2659 stream->multicast_port, stream->multicast_ttl);
2662 for(i = 0; i < stream->nb_streams; i++) {
2663 avc->streams[i] = &avs[i];
2664 avc->streams[i]->codec = stream->streams[i]->codec;
2666 *pbuffer = av_mallocz(2048);
2667 avf_sdp_create(&avc, 1, *pbuffer, 2048);
2670 return strlen(*pbuffer);
2673 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2675 // rtsp_reply_header(c, RTSP_STATUS_OK);
2676 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2677 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2678 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2679 url_fprintf(c->pb, "\r\n");
2682 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2688 int content_length, len;
2689 struct sockaddr_in my_addr;
2691 /* find which url is asked */
2692 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2697 for(stream = first_stream; stream != NULL; stream = stream->next) {
2698 if (!stream->is_feed &&
2699 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2700 !strcmp(path, stream->filename)) {
2704 /* no stream found */
2705 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2709 /* prepare the media description in sdp format */
2711 /* get the host IP */
2712 len = sizeof(my_addr);
2713 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
2714 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
2715 if (content_length < 0) {
2716 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2719 rtsp_reply_header(c, RTSP_STATUS_OK);
2720 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
2721 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
2722 url_fprintf(c->pb, "\r\n");
2723 put_buffer(c->pb, content, content_length);
2726 static HTTPContext *find_rtp_session(const char *session_id)
2730 if (session_id[0] == '\0')
2733 for(c = first_http_ctx; c != NULL; c = c->next) {
2734 if (!strcmp(c->session_id, session_id))
2740 static RTSPTransportField *find_transport(RTSPHeader *h, enum RTSPProtocol protocol)
2742 RTSPTransportField *th;
2745 for(i=0;i<h->nb_transports;i++) {
2746 th = &h->transports[i];
2747 if (th->protocol == protocol)
2753 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
2757 int stream_index, port;
2762 RTSPTransportField *th;
2763 struct sockaddr_in dest_addr;
2764 RTSPActionServerSetup setup;
2766 /* find which url is asked */
2767 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2772 /* now check each stream */
2773 for(stream = first_stream; stream != NULL; stream = stream->next) {
2774 if (!stream->is_feed &&
2775 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
2776 /* accept aggregate filenames only if single stream */
2777 if (!strcmp(path, stream->filename)) {
2778 if (stream->nb_streams != 1) {
2779 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
2786 for(stream_index = 0; stream_index < stream->nb_streams;
2788 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2789 stream->filename, stream_index);
2790 if (!strcmp(path, buf))
2795 /* no stream found */
2796 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2800 /* generate session id if needed */
2801 if (h->session_id[0] == '\0')
2802 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
2803 av_random(&random_state), av_random(&random_state));
2805 /* find rtp session, and create it if none found */
2806 rtp_c = find_rtp_session(h->session_id);
2808 /* always prefer UDP */
2809 th = find_transport(h, RTSP_PROTOCOL_RTP_UDP);
2811 th = find_transport(h, RTSP_PROTOCOL_RTP_TCP);
2813 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2818 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
2821 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
2825 /* open input stream */
2826 if (open_input_stream(rtp_c, "") < 0) {
2827 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2832 /* test if stream is OK (test needed because several SETUP needs
2833 to be done for a given file) */
2834 if (rtp_c->stream != stream) {
2835 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
2839 /* test if stream is already set up */
2840 if (rtp_c->rtp_ctx[stream_index]) {
2841 rtsp_reply_error(c, RTSP_STATUS_STATE);
2845 /* check transport */
2846 th = find_transport(h, rtp_c->rtp_protocol);
2847 if (!th || (th->protocol == RTSP_PROTOCOL_RTP_UDP &&
2848 th->client_port_min <= 0)) {
2849 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2853 /* setup default options */
2854 setup.transport_option[0] = '\0';
2855 dest_addr = rtp_c->from_addr;
2856 dest_addr.sin_port = htons(th->client_port_min);
2859 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
2860 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2864 /* now everything is OK, so we can send the connection parameters */
2865 rtsp_reply_header(c, RTSP_STATUS_OK);
2867 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2869 switch(rtp_c->rtp_protocol) {
2870 case RTSP_PROTOCOL_RTP_UDP:
2871 port = rtp_get_local_port(rtp_c->rtp_handles[stream_index]);
2872 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
2873 "client_port=%d-%d;server_port=%d-%d",
2874 th->client_port_min, th->client_port_min + 1,
2877 case RTSP_PROTOCOL_RTP_TCP:
2878 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
2879 stream_index * 2, stream_index * 2 + 1);
2884 if (setup.transport_option[0] != '\0')
2885 url_fprintf(c->pb, ";%s", setup.transport_option);
2886 url_fprintf(c->pb, "\r\n");
2889 url_fprintf(c->pb, "\r\n");
2893 /* find an rtp connection by using the session ID. Check consistency
2895 static HTTPContext *find_rtp_session_with_url(const char *url,
2896 const char *session_id)
2904 rtp_c = find_rtp_session(session_id);
2908 /* find which url is asked */
2909 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2913 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
2914 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
2915 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2916 rtp_c->stream->filename, s);
2917 if(!strncmp(path, buf, sizeof(buf))) {
2918 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
2925 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h)
2929 rtp_c = find_rtp_session_with_url(url, h->session_id);
2931 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2935 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
2936 rtp_c->state != HTTPSTATE_WAIT_FEED &&
2937 rtp_c->state != HTTPSTATE_READY) {
2938 rtsp_reply_error(c, RTSP_STATUS_STATE);
2943 /* XXX: seek in stream */
2944 if (h->range_start != AV_NOPTS_VALUE) {
2945 printf("range_start=%0.3f\n", (double)h->range_start / AV_TIME_BASE);
2946 av_seek_frame(rtp_c->fmt_in, -1, h->range_start);
2950 rtp_c->state = HTTPSTATE_SEND_DATA;
2952 /* now everything is OK, so we can send the connection parameters */
2953 rtsp_reply_header(c, RTSP_STATUS_OK);
2955 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2956 url_fprintf(c->pb, "\r\n");
2959 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h)
2963 rtp_c = find_rtp_session_with_url(url, h->session_id);
2965 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2969 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
2970 rtp_c->state != HTTPSTATE_WAIT_FEED) {
2971 rtsp_reply_error(c, RTSP_STATUS_STATE);
2975 rtp_c->state = HTTPSTATE_READY;
2976 rtp_c->first_pts = AV_NOPTS_VALUE;
2977 /* now everything is OK, so we can send the connection parameters */
2978 rtsp_reply_header(c, RTSP_STATUS_OK);
2980 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2981 url_fprintf(c->pb, "\r\n");
2984 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h)
2987 char session_id[32];
2989 rtp_c = find_rtp_session_with_url(url, h->session_id);
2991 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2995 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
2997 /* abort the session */
2998 close_connection(rtp_c);
3000 /* now everything is OK, so we can send the connection parameters */
3001 rtsp_reply_header(c, RTSP_STATUS_OK);
3003 url_fprintf(c->pb, "Session: %s\r\n", session_id);
3004 url_fprintf(c->pb, "\r\n");
3008 /********************************************************************/
3011 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3012 FFStream *stream, const char *session_id,
3013 enum RTSPProtocol rtp_protocol)
3015 HTTPContext *c = NULL;
3016 const char *proto_str;
3018 /* XXX: should output a warning page when coming
3019 close to the connection limit */
3020 if (nb_connections >= nb_max_connections)
3023 /* add a new connection */
3024 c = av_mallocz(sizeof(HTTPContext));
3029 c->poll_entry = NULL;
3030 c->from_addr = *from_addr;
3031 c->buffer_size = IOBUFFER_INIT_SIZE;
3032 c->buffer = av_malloc(c->buffer_size);
3037 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3038 c->state = HTTPSTATE_READY;
3039 c->is_packetized = 1;
3040 c->rtp_protocol = rtp_protocol;
3042 /* protocol is shown in statistics */
3043 switch(c->rtp_protocol) {
3044 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
3045 proto_str = "MCAST";
3047 case RTSP_PROTOCOL_RTP_UDP:
3050 case RTSP_PROTOCOL_RTP_TCP:
3057 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3058 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3060 current_bandwidth += stream->bandwidth;
3062 c->next = first_http_ctx;
3074 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3075 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3077 static int rtp_new_av_stream(HTTPContext *c,
3078 int stream_index, struct sockaddr_in *dest_addr,
3079 HTTPContext *rtsp_c)
3081 AVFormatContext *ctx;
3087 int max_packet_size;
3089 /* now we can open the relevant output stream */
3090 ctx = av_alloc_format_context();
3093 ctx->oformat = guess_format("rtp", NULL, NULL);
3095 st = av_mallocz(sizeof(AVStream));
3098 st->codec= avcodec_alloc_context();
3099 ctx->nb_streams = 1;
3100 ctx->streams[0] = st;
3102 if (!c->stream->feed ||
3103 c->stream->feed == c->stream)
3104 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3107 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3109 st->priv_data = NULL;
3111 /* build destination RTP address */
3112 ipaddr = inet_ntoa(dest_addr->sin_addr);
3114 switch(c->rtp_protocol) {
3115 case RTSP_PROTOCOL_RTP_UDP:
3116 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
3119 /* XXX: also pass as parameter to function ? */
3120 if (c->stream->is_multicast) {
3122 ttl = c->stream->multicast_ttl;
3125 snprintf(ctx->filename, sizeof(ctx->filename),
3126 "rtp://%s:%d?multicast=1&ttl=%d",
3127 ipaddr, ntohs(dest_addr->sin_port), ttl);
3129 snprintf(ctx->filename, sizeof(ctx->filename),
3130 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3133 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3135 c->rtp_handles[stream_index] = h;
3136 max_packet_size = url_get_max_packet_size(h);
3138 case RTSP_PROTOCOL_RTP_TCP:
3141 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3147 http_log("%s:%d - - [%s] \"PLAY %s/streamid=%d %s\"\n",
3148 ipaddr, ntohs(dest_addr->sin_port),
3150 c->stream->filename, stream_index, c->protocol);
3152 /* normally, no packets should be output here, but the packet size may be checked */
3153 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3154 /* XXX: close stream */
3157 av_set_parameters(ctx, NULL);
3158 if (av_write_header(ctx) < 0) {
3165 url_close_dyn_buf(ctx->pb, &dummy_buf);
3168 c->rtp_ctx[stream_index] = ctx;
3172 /********************************************************************/
3173 /* ffserver initialization */
3175 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec)
3179 fst = av_mallocz(sizeof(AVStream));
3182 fst->codec= avcodec_alloc_context();
3183 fst->priv_data = av_mallocz(sizeof(FeedData));
3184 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3185 fst->codec->coded_frame = &dummy_frame;
3186 fst->index = stream->nb_streams;
3187 av_set_pts_info(fst, 33, 1, 90000);
3188 stream->streams[stream->nb_streams++] = fst;
3192 /* return the stream number in the feed */
3193 static int add_av_stream(FFStream *feed, AVStream *st)
3196 AVCodecContext *av, *av1;
3200 for(i=0;i<feed->nb_streams;i++) {
3201 st = feed->streams[i];
3203 if (av1->codec_id == av->codec_id &&
3204 av1->codec_type == av->codec_type &&
3205 av1->bit_rate == av->bit_rate) {
3207 switch(av->codec_type) {
3208 case CODEC_TYPE_AUDIO:
3209 if (av1->channels == av->channels &&
3210 av1->sample_rate == av->sample_rate)
3213 case CODEC_TYPE_VIDEO:
3214 if (av1->width == av->width &&
3215 av1->height == av->height &&
3216 av1->time_base.den == av->time_base.den &&
3217 av1->time_base.num == av->time_base.num &&
3218 av1->gop_size == av->gop_size)
3227 fst = add_av_stream1(feed, av);
3230 return feed->nb_streams - 1;
3235 static void remove_stream(FFStream *stream)
3239 while (*ps != NULL) {
3247 /* specific mpeg4 handling : we extract the raw parameters */
3248 static void extract_mpeg4_header(AVFormatContext *infile)
3250 int mpeg4_count, i, size;
3256 for(i=0;i<infile->nb_streams;i++) {
3257 st = infile->streams[i];
3258 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3259 st->codec->extradata_size == 0) {
3266 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3267 while (mpeg4_count > 0) {
3268 if (av_read_packet(infile, &pkt) < 0)
3270 st = infile->streams[pkt.stream_index];
3271 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3272 st->codec->extradata_size == 0) {
3273 av_freep(&st->codec->extradata);
3274 /* fill extradata with the header */
3275 /* XXX: we make hard suppositions here ! */
3277 while (p < pkt.data + pkt.size - 4) {
3278 /* stop when vop header is found */
3279 if (p[0] == 0x00 && p[1] == 0x00 &&
3280 p[2] == 0x01 && p[3] == 0xb6) {
3281 size = p - pkt.data;
3282 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3283 st->codec->extradata = av_malloc(size);
3284 st->codec->extradata_size = size;
3285 memcpy(st->codec->extradata, pkt.data, size);
3292 av_free_packet(&pkt);
3296 /* compute the needed AVStream for each file */
3297 static void build_file_streams(void)
3299 FFStream *stream, *stream_next;
3300 AVFormatContext *infile;
3303 /* gather all streams */
3304 for(stream = first_stream; stream != NULL; stream = stream_next) {
3305 stream_next = stream->next;
3306 if (stream->stream_type == STREAM_TYPE_LIVE &&
3308 /* the stream comes from a file */
3309 /* try to open the file */
3311 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
3312 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3313 /* specific case : if transport stream output to RTP,
3314 we use a raw transport stream reader */
3315 stream->ap_in->mpeg2ts_raw = 1;
3316 stream->ap_in->mpeg2ts_compute_pcr = 1;
3319 if (av_open_input_file(&infile, stream->feed_filename,
3320 stream->ifmt, 0, stream->ap_in) < 0) {
3321 http_log("%s not found", stream->feed_filename);
3322 /* remove stream (no need to spend more time on it) */
3324 remove_stream(stream);
3326 /* find all the AVStreams inside and reference them in
3328 if (av_find_stream_info(infile) < 0) {
3329 http_log("Could not find codec parameters from '%s'",
3330 stream->feed_filename);
3331 av_close_input_file(infile);
3334 extract_mpeg4_header(infile);
3336 for(i=0;i<infile->nb_streams;i++)
3337 add_av_stream1(stream, infile->streams[i]->codec);
3339 av_close_input_file(infile);
3345 /* compute the needed AVStream for each feed */
3346 static void build_feed_streams(void)
3348 FFStream *stream, *feed;
3351 /* gather all streams */
3352 for(stream = first_stream; stream != NULL; stream = stream->next) {
3353 feed = stream->feed;
3355 if (!stream->is_feed) {
3356 /* we handle a stream coming from a feed */
3357 for(i=0;i<stream->nb_streams;i++)
3358 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3363 /* gather all streams */
3364 for(stream = first_stream; stream != NULL; stream = stream->next) {
3365 feed = stream->feed;
3367 if (stream->is_feed) {
3368 for(i=0;i<stream->nb_streams;i++)
3369 stream->feed_streams[i] = i;
3374 /* create feed files if needed */
3375 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3378 if (url_exist(feed->feed_filename)) {
3379 /* See if it matches */
3383 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3384 /* Now see if it matches */
3385 if (s->nb_streams == feed->nb_streams) {
3387 for(i=0;i<s->nb_streams;i++) {
3389 sf = feed->streams[i];
3392 if (sf->index != ss->index ||
3394 printf("Index & Id do not match for stream %d (%s)\n",
3395 i, feed->feed_filename);
3398 AVCodecContext *ccf, *ccs;
3402 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3404 if (CHECK_CODEC(codec) || CHECK_CODEC(codec_type)) {
3405 printf("Codecs do not match for stream %d\n", i);
3407 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3408 printf("Codec bitrates do not match for stream %d\n", i);
3410 } else if (ccf->codec_type == CODEC_TYPE_VIDEO) {
3411 if (CHECK_CODEC(time_base.den) ||
3412 CHECK_CODEC(time_base.num) ||
3413 CHECK_CODEC(width) ||
3414 CHECK_CODEC(height)) {
3415 printf("Codec width, height and framerate do not match for stream %d\n", i);
3418 } else if (ccf->codec_type == CODEC_TYPE_AUDIO) {
3419 if (CHECK_CODEC(sample_rate) ||
3420 CHECK_CODEC(channels) ||
3421 CHECK_CODEC(frame_size)) {
3422 printf("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3426 printf("Unknown codec type\n");
3434 printf("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3435 feed->feed_filename, s->nb_streams, feed->nb_streams);
3437 av_close_input_file(s);
3439 printf("Deleting feed file '%s' as it appears to be corrupt\n",
3440 feed->feed_filename);
3443 if (feed->readonly) {
3444 printf("Unable to delete feed file '%s' as it is marked readonly\n",
3445 feed->feed_filename);
3448 unlink(feed->feed_filename);
3451 if (!url_exist(feed->feed_filename)) {
3452 AVFormatContext s1, *s = &s1;
3454 if (feed->readonly) {
3455 printf("Unable to create feed file '%s' as it is marked readonly\n",
3456 feed->feed_filename);
3460 /* only write the header of the ffm file */
3461 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
3462 fprintf(stderr, "Could not open output feed file '%s'\n",
3463 feed->feed_filename);
3466 s->oformat = feed->fmt;
3467 s->nb_streams = feed->nb_streams;
3468 for(i=0;i<s->nb_streams;i++) {
3470 st = feed->streams[i];
3473 av_set_parameters(s, NULL);
3474 if (av_write_header(s) < 0) {
3475 fprintf(stderr, "Container doesn't supports the required parameters\n");
3478 /* XXX: need better api */
3479 av_freep(&s->priv_data);
3482 /* get feed size and write index */
3483 fd = open(feed->feed_filename, O_RDONLY);
3485 fprintf(stderr, "Could not open output feed file '%s'\n",
3486 feed->feed_filename);
3490 feed->feed_write_index = ffm_read_write_index(fd);
3491 feed->feed_size = lseek(fd, 0, SEEK_END);
3492 /* ensure that we do not wrap before the end of file */
3493 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3494 feed->feed_max_size = feed->feed_size;
3500 /* compute the bandwidth used by each stream */
3501 static void compute_bandwidth(void)
3506 for(stream = first_stream; stream != NULL; stream = stream->next) {
3508 for(i=0;i<stream->nb_streams;i++) {
3509 AVStream *st = stream->streams[i];
3510 switch(st->codec->codec_type) {
3511 case CODEC_TYPE_AUDIO:
3512 case CODEC_TYPE_VIDEO:
3513 bandwidth += st->codec->bit_rate;
3519 stream->bandwidth = (bandwidth + 999) / 1000;
3523 static void get_arg(char *buf, int buf_size, const char **pp)
3530 while (isspace(*p)) p++;
3533 if (*p == '\"' || *p == '\'')
3545 if ((q - buf) < buf_size - 1)
3550 if (quote && *p == quote)
3555 /* add a codec and set the default parameters */
3556 static void add_codec(FFStream *stream, AVCodecContext *av)
3560 /* compute default parameters */
3561 switch(av->codec_type) {
3562 case CODEC_TYPE_AUDIO:
3563 if (av->bit_rate == 0)
3564 av->bit_rate = 64000;
3565 if (av->sample_rate == 0)
3566 av->sample_rate = 22050;
3567 if (av->channels == 0)
3570 case CODEC_TYPE_VIDEO:
3571 if (av->bit_rate == 0)
3572 av->bit_rate = 64000;
3573 if (av->time_base.num == 0){
3574 av->time_base.den = 5;
3575 av->time_base.num = 1;
3577 if (av->width == 0 || av->height == 0) {
3581 /* Bitrate tolerance is less for streaming */
3582 if (av->bit_rate_tolerance == 0)
3583 av->bit_rate_tolerance = av->bit_rate / 4;
3588 if (av->max_qdiff == 0)
3590 av->qcompress = 0.5;
3593 if (!av->nsse_weight)
3594 av->nsse_weight = 8;
3596 av->frame_skip_cmp = FF_CMP_DCTMAX;
3597 av->me_method = ME_EPZS;
3598 av->rc_buffer_aggressivity = 1.0;
3601 av->rc_eq = "tex^qComp";
3602 if (!av->i_quant_factor)
3603 av->i_quant_factor = -0.8;
3604 if (!av->b_quant_factor)
3605 av->b_quant_factor = 1.25;
3606 if (!av->b_quant_offset)
3607 av->b_quant_offset = 1.25;
3608 if (!av->rc_max_rate)
3609 av->rc_max_rate = av->bit_rate * 2;
3611 if (av->rc_max_rate && !av->rc_buffer_size) {
3612 av->rc_buffer_size = av->rc_max_rate;
3621 st = av_mallocz(sizeof(AVStream));
3624 st->codec = avcodec_alloc_context();
3625 stream->streams[stream->nb_streams++] = st;
3626 memcpy(st->codec, av, sizeof(AVCodecContext));
3629 static int opt_audio_codec(const char *arg)
3635 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
3640 return CODEC_ID_NONE;
3645 static int opt_video_codec(const char *arg)
3651 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
3656 return CODEC_ID_NONE;
3661 /* simplistic plugin support */
3664 static void load_module(const char *filename)
3667 void (*init_func)(void);
3668 dll = dlopen(filename, RTLD_NOW);
3670 fprintf(stderr, "Could not load module '%s' - %s\n",
3671 filename, dlerror());
3675 init_func = dlsym(dll, "ffserver_module_init");
3678 "%s: init function 'ffserver_module_init()' not found\n",
3687 static int parse_ffconfig(const char *filename)
3694 int val, errors, line_num;
3695 FFStream **last_stream, *stream, *redirect;
3696 FFStream **last_feed, *feed;
3697 AVCodecContext audio_enc, video_enc;
3698 int audio_id, video_id;
3700 f = fopen(filename, "r");
3708 first_stream = NULL;
3709 last_stream = &first_stream;
3711 last_feed = &first_feed;
3715 audio_id = CODEC_ID_NONE;
3716 video_id = CODEC_ID_NONE;
3718 if (fgets(line, sizeof(line), f) == NULL)
3724 if (*p == '\0' || *p == '#')
3727 get_arg(cmd, sizeof(cmd), &p);
3729 if (!strcasecmp(cmd, "Port")) {
3730 get_arg(arg, sizeof(arg), &p);
3732 if (val < 1 || val > 65536) {
3733 fprintf(stderr, "%s:%d: Invalid port: %s\n",
3734 filename, line_num, arg);
3737 my_http_addr.sin_port = htons(val);
3738 } else if (!strcasecmp(cmd, "BindAddress")) {
3739 get_arg(arg, sizeof(arg), &p);
3740 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
3741 fprintf(stderr, "%s:%d: Invalid host/IP address: %s\n",
3742 filename, line_num, arg);
3745 } else if (!strcasecmp(cmd, "NoDaemon")) {
3746 ffserver_daemon = 0;
3747 } else if (!strcasecmp(cmd, "RTSPPort")) {
3748 get_arg(arg, sizeof(arg), &p);
3750 if (val < 1 || val > 65536) {
3751 fprintf(stderr, "%s:%d: Invalid port: %s\n",
3752 filename, line_num, arg);
3755 my_rtsp_addr.sin_port = htons(atoi(arg));
3756 } else if (!strcasecmp(cmd, "RTSPBindAddress")) {
3757 get_arg(arg, sizeof(arg), &p);
3758 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
3759 fprintf(stderr, "%s:%d: Invalid host/IP address: %s\n",
3760 filename, line_num, arg);
3763 } else if (!strcasecmp(cmd, "MaxClients")) {
3764 get_arg(arg, sizeof(arg), &p);
3766 if (val < 1 || val > HTTP_MAX_CONNECTIONS) {
3767 fprintf(stderr, "%s:%d: Invalid MaxClients: %s\n",
3768 filename, line_num, arg);
3771 nb_max_connections = val;
3773 } else if (!strcasecmp(cmd, "MaxBandwidth")) {
3774 get_arg(arg, sizeof(arg), &p);
3776 if (val < 10 || val > 100000) {
3777 fprintf(stderr, "%s:%d: Invalid MaxBandwidth: %s\n",
3778 filename, line_num, arg);
3781 max_bandwidth = val;
3782 } else if (!strcasecmp(cmd, "CustomLog")) {
3783 get_arg(logfilename, sizeof(logfilename), &p);
3784 } else if (!strcasecmp(cmd, "<Feed")) {
3785 /*********************************************/
3786 /* Feed related options */
3788 if (stream || feed) {
3789 fprintf(stderr, "%s:%d: Already in a tag\n",
3790 filename, line_num);
3792 feed = av_mallocz(sizeof(FFStream));
3793 /* add in stream list */
3794 *last_stream = feed;
3795 last_stream = &feed->next;
3796 /* add in feed list */
3798 last_feed = &feed->next_feed;
3800 get_arg(feed->filename, sizeof(feed->filename), &p);
3801 q = strrchr(feed->filename, '>');
3804 feed->fmt = guess_format("ffm", NULL, NULL);
3805 /* defaut feed file */
3806 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
3807 "/tmp/%s.ffm", feed->filename);
3808 feed->feed_max_size = 5 * 1024 * 1024;
3810 feed->feed = feed; /* self feeding :-) */
3812 } else if (!strcasecmp(cmd, "Launch")) {
3816 feed->child_argv = av_mallocz(64 * sizeof(char *));
3818 for (i = 0; i < 62; i++) {
3819 get_arg(arg, sizeof(arg), &p);
3823 feed->child_argv[i] = av_strdup(arg);
3826 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
3828 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
3830 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
3831 inet_ntoa(my_http_addr.sin_addr),
3832 ntohs(my_http_addr.sin_port), feed->filename);
3837 fprintf(stdout, "Launch commandline: ");
3838 for (j = 0; j <= i; j++)
3839 fprintf(stdout, "%s ", feed->child_argv[j]);
3840 fprintf(stdout, "\n");
3843 } else if (!strcasecmp(cmd, "ReadOnlyFile")) {
3845 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
3847 } else if (stream) {
3848 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
3850 } else if (!strcasecmp(cmd, "File")) {
3852 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
3854 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
3855 } else if (!strcasecmp(cmd, "FileMaxSize")) {
3860 get_arg(arg, sizeof(arg), &p);
3862 fsize = strtod(p1, (char **)&p1);
3863 switch(toupper(*p1)) {
3868 fsize *= 1024 * 1024;
3871 fsize *= 1024 * 1024 * 1024;
3874 feed->feed_max_size = (int64_t)fsize;
3876 } else if (!strcasecmp(cmd, "</Feed>")) {
3878 fprintf(stderr, "%s:%d: No corresponding <Feed> for </Feed>\n",
3879 filename, line_num);
3883 } else if (!strcasecmp(cmd, "<Stream")) {
3884 /*********************************************/
3885 /* Stream related options */
3887 if (stream || feed) {
3888 fprintf(stderr, "%s:%d: Already in a tag\n",
3889 filename, line_num);
3891 stream = av_mallocz(sizeof(FFStream));
3892 *last_stream = stream;
3893 last_stream = &stream->next;
3895 get_arg(stream->filename, sizeof(stream->filename), &p);
3896 q = strrchr(stream->filename, '>');
3899 stream->fmt = guess_stream_format(NULL, stream->filename, NULL);
3900 memset(&audio_enc, 0, sizeof(AVCodecContext));
3901 memset(&video_enc, 0, sizeof(AVCodecContext));
3902 audio_id = CODEC_ID_NONE;
3903 video_id = CODEC_ID_NONE;
3905 audio_id = stream->fmt->audio_codec;
3906 video_id = stream->fmt->video_codec;
3909 } else if (!strcasecmp(cmd, "Feed")) {
3910 get_arg(arg, sizeof(arg), &p);
3915 while (sfeed != NULL) {
3916 if (!strcmp(sfeed->filename, arg))
3918 sfeed = sfeed->next_feed;
3921 fprintf(stderr, "%s:%d: feed '%s' not defined\n",
3922 filename, line_num, arg);
3924 stream->feed = sfeed;
3926 } else if (!strcasecmp(cmd, "Format")) {
3927 get_arg(arg, sizeof(arg), &p);
3928 if (!strcmp(arg, "status")) {
3929 stream->stream_type = STREAM_TYPE_STATUS;
3932 stream->stream_type = STREAM_TYPE_LIVE;
3933 /* jpeg cannot be used here, so use single frame jpeg */
3934 if (!strcmp(arg, "jpeg"))
3935 strcpy(arg, "mjpeg");
3936 stream->fmt = guess_stream_format(arg, NULL, NULL);
3938 fprintf(stderr, "%s:%d: Unknown Format: %s\n",
3939 filename, line_num, arg);
3944 audio_id = stream->fmt->audio_codec;
3945 video_id = stream->fmt->video_codec;
3947 } else if (!strcasecmp(cmd, "InputFormat")) {
3948 get_arg(arg, sizeof(arg), &p);
3949 stream->ifmt = av_find_input_format(arg);
3950 if (!stream->ifmt) {
3951 fprintf(stderr, "%s:%d: Unknown input format: %s\n",
3952 filename, line_num, arg);
3954 } else if (!strcasecmp(cmd, "FaviconURL")) {
3955 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
3956 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
3958 fprintf(stderr, "%s:%d: FaviconURL only permitted for status streams\n",
3959 filename, line_num);
3962 } else if (!strcasecmp(cmd, "Author")) {
3964 get_arg(stream->author, sizeof(stream->author), &p);
3965 } else if (!strcasecmp(cmd, "Comment")) {
3967 get_arg(stream->comment, sizeof(stream->comment), &p);
3968 } else if (!strcasecmp(cmd, "Copyright")) {
3970 get_arg(stream->copyright, sizeof(stream->copyright), &p);
3971 } else if (!strcasecmp(cmd, "Title")) {
3973 get_arg(stream->title, sizeof(stream->title), &p);
3974 } else if (!strcasecmp(cmd, "Preroll")) {
3975 get_arg(arg, sizeof(arg), &p);
3977 stream->prebuffer = atof(arg) * 1000;
3978 } else if (!strcasecmp(cmd, "StartSendOnKey")) {
3980 stream->send_on_key = 1;
3981 } else if (!strcasecmp(cmd, "AudioCodec")) {
3982 get_arg(arg, sizeof(arg), &p);
3983 audio_id = opt_audio_codec(arg);
3984 if (audio_id == CODEC_ID_NONE) {
3985 fprintf(stderr, "%s:%d: Unknown AudioCodec: %s\n",
3986 filename, line_num, arg);
3989 } else if (!strcasecmp(cmd, "VideoCodec")) {
3990 get_arg(arg, sizeof(arg), &p);
3991 video_id = opt_video_codec(arg);
3992 if (video_id == CODEC_ID_NONE) {
3993 fprintf(stderr, "%s:%d: Unknown VideoCodec: %s\n",
3994 filename, line_num, arg);
3997 } else if (!strcasecmp(cmd, "MaxTime")) {
3998 get_arg(arg, sizeof(arg), &p);
4000 stream->max_time = atof(arg) * 1000;
4001 } else if (!strcasecmp(cmd, "AudioBitRate")) {
4002 get_arg(arg, sizeof(arg), &p);
4004 audio_enc.bit_rate = atoi(arg) * 1000;
4005 } else if (!strcasecmp(cmd, "AudioChannels")) {
4006 get_arg(arg, sizeof(arg), &p);
4008 audio_enc.channels = atoi(arg);
4009 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
4010 get_arg(arg, sizeof(arg), &p);
4012 audio_enc.sample_rate = atoi(arg);
4013 } else if (!strcasecmp(cmd, "AudioQuality")) {
4014 get_arg(arg, sizeof(arg), &p);
4016 // audio_enc.quality = atof(arg) * 1000;
4018 } else if (!strcasecmp(cmd, "VideoBitRateRange")) {
4020 int minrate, maxrate;
4022 get_arg(arg, sizeof(arg), &p);
4024 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4025 video_enc.rc_min_rate = minrate * 1000;
4026 video_enc.rc_max_rate = maxrate * 1000;
4028 fprintf(stderr, "%s:%d: Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n",
4029 filename, line_num, arg);
4033 } else if (!strcasecmp(cmd, "Debug")) {
4035 get_arg(arg, sizeof(arg), &p);
4036 video_enc.debug = strtol(arg,0,0);
4038 } else if (!strcasecmp(cmd, "Strict")) {
4040 get_arg(arg, sizeof(arg), &p);
4041 video_enc.strict_std_compliance = atoi(arg);
4043 } else if (!strcasecmp(cmd, "VideoBufferSize")) {
4045 get_arg(arg, sizeof(arg), &p);
4046 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4048 } else if (!strcasecmp(cmd, "VideoBitRateTolerance")) {
4050 get_arg(arg, sizeof(arg), &p);
4051 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4053 } else if (!strcasecmp(cmd, "VideoBitRate")) {
4054 get_arg(arg, sizeof(arg), &p);
4056 video_enc.bit_rate = atoi(arg) * 1000;
4058 } else if (!strcasecmp(cmd, "VideoSize")) {
4059 get_arg(arg, sizeof(arg), &p);
4061 av_parse_video_frame_size(&video_enc.width, &video_enc.height, arg);
4062 if ((video_enc.width % 16) != 0 ||
4063 (video_enc.height % 16) != 0) {
4064 fprintf(stderr, "%s:%d: Image size must be a multiple of 16\n",
4065 filename, line_num);
4069 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
4070 get_arg(arg, sizeof(arg), &p);
4072 video_enc.time_base.num= DEFAULT_FRAME_RATE_BASE;
4073 video_enc.time_base.den = (int)(strtod(arg, NULL) * video_enc.time_base.num);
4075 } else if (!strcasecmp(cmd, "VideoGopSize")) {
4076 get_arg(arg, sizeof(arg), &p);
4078 video_enc.gop_size = atoi(arg);
4079 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
4081 video_enc.gop_size = 1;
4082 } else if (!strcasecmp(cmd, "VideoHighQuality")) {
4084 video_enc.mb_decision = FF_MB_DECISION_BITS;
4085 } else if (!strcasecmp(cmd, "Video4MotionVector")) {
4087 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4088 video_enc.flags |= CODEC_FLAG_4MV;
4090 } else if (!strcasecmp(cmd, "VideoTag")) {
4091 get_arg(arg, sizeof(arg), &p);
4092 if ((strlen(arg) == 4) && stream)
4093 video_enc.codec_tag = ff_get_fourcc(arg);
4094 } else if (!strcasecmp(cmd, "BitExact")) {
4096 video_enc.flags |= CODEC_FLAG_BITEXACT;
4097 } else if (!strcasecmp(cmd, "DctFastint")) {
4099 video_enc.dct_algo = FF_DCT_FASTINT;
4100 } else if (!strcasecmp(cmd, "IdctSimple")) {
4102 video_enc.idct_algo = FF_IDCT_SIMPLE;
4103 } else if (!strcasecmp(cmd, "Qscale")) {
4104 get_arg(arg, sizeof(arg), &p);
4106 video_enc.flags |= CODEC_FLAG_QSCALE;
4107 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4109 } else if (!strcasecmp(cmd, "VideoQDiff")) {
4110 get_arg(arg, sizeof(arg), &p);
4112 video_enc.max_qdiff = atoi(arg);
4113 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4114 fprintf(stderr, "%s:%d: VideoQDiff out of range\n",
4115 filename, line_num);
4119 } else if (!strcasecmp(cmd, "VideoQMax")) {
4120 get_arg(arg, sizeof(arg), &p);
4122 video_enc.qmax = atoi(arg);
4123 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4124 fprintf(stderr, "%s:%d: VideoQMax out of range\n",
4125 filename, line_num);
4129 } else if (!strcasecmp(cmd, "VideoQMin")) {
4130 get_arg(arg, sizeof(arg), &p);
4132 video_enc.qmin = atoi(arg);
4133 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4134 fprintf(stderr, "%s:%d: VideoQMin out of range\n",
4135 filename, line_num);
4139 } else if (!strcasecmp(cmd, "LumaElim")) {
4140 get_arg(arg, sizeof(arg), &p);
4142 video_enc.luma_elim_threshold = atoi(arg);
4143 } else if (!strcasecmp(cmd, "ChromaElim")) {
4144 get_arg(arg, sizeof(arg), &p);
4146 video_enc.chroma_elim_threshold = atoi(arg);
4147 } else if (!strcasecmp(cmd, "LumiMask")) {
4148 get_arg(arg, sizeof(arg), &p);
4150 video_enc.lumi_masking = atof(arg);
4151 } else if (!strcasecmp(cmd, "DarkMask")) {
4152 get_arg(arg, sizeof(arg), &p);
4154 video_enc.dark_masking = atof(arg);
4155 } else if (!strcasecmp(cmd, "NoVideo")) {
4156 video_id = CODEC_ID_NONE;
4157 } else if (!strcasecmp(cmd, "NoAudio")) {
4158 audio_id = CODEC_ID_NONE;
4159 } else if (!strcasecmp(cmd, "ACL")) {
4162 get_arg(arg, sizeof(arg), &p);
4163 if (strcasecmp(arg, "allow") == 0)
4164 acl.action = IP_ALLOW;
4165 else if (strcasecmp(arg, "deny") == 0)
4166 acl.action = IP_DENY;
4168 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
4169 filename, line_num, arg);
4173 get_arg(arg, sizeof(arg), &p);
4175 if (resolve_host(&acl.first, arg) != 0) {
4176 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
4177 filename, line_num, arg);
4180 acl.last = acl.first;
4182 get_arg(arg, sizeof(arg), &p);
4185 if (resolve_host(&acl.last, arg) != 0) {
4186 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
4187 filename, line_num, arg);
4193 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
4194 IPAddressACL **naclp = 0;
4200 naclp = &stream->acl;
4204 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
4205 filename, line_num);
4211 naclp = &(*naclp)->next;
4216 } else if (!strcasecmp(cmd, "RTSPOption")) {
4217 get_arg(arg, sizeof(arg), &p);
4219 av_freep(&stream->rtsp_option);
4220 stream->rtsp_option = av_strdup(arg);
4222 } else if (!strcasecmp(cmd, "MulticastAddress")) {
4223 get_arg(arg, sizeof(arg), &p);
4225 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4226 fprintf(stderr, "%s:%d: Invalid host/IP address: %s\n",
4227 filename, line_num, arg);
4230 stream->is_multicast = 1;
4231 stream->loop = 1; /* default is looping */
4233 } else if (!strcasecmp(cmd, "MulticastPort")) {
4234 get_arg(arg, sizeof(arg), &p);
4236 stream->multicast_port = atoi(arg);
4237 } else if (!strcasecmp(cmd, "MulticastTTL")) {
4238 get_arg(arg, sizeof(arg), &p);
4240 stream->multicast_ttl = atoi(arg);
4241 } else if (!strcasecmp(cmd, "NoLoop")) {
4244 } else if (!strcasecmp(cmd, "</Stream>")) {
4246 fprintf(stderr, "%s:%d: No corresponding <Stream> for </Stream>\n",
4247 filename, line_num);
4250 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4251 if (audio_id != CODEC_ID_NONE) {
4252 audio_enc.codec_type = CODEC_TYPE_AUDIO;
4253 audio_enc.codec_id = audio_id;
4254 add_codec(stream, &audio_enc);
4256 if (video_id != CODEC_ID_NONE) {
4257 video_enc.codec_type = CODEC_TYPE_VIDEO;
4258 video_enc.codec_id = video_id;
4259 add_codec(stream, &video_enc);
4263 } else if (!strcasecmp(cmd, "<Redirect")) {
4264 /*********************************************/
4266 if (stream || feed || redirect) {
4267 fprintf(stderr, "%s:%d: Already in a tag\n",
4268 filename, line_num);
4271 redirect = av_mallocz(sizeof(FFStream));
4272 *last_stream = redirect;
4273 last_stream = &redirect->next;
4275 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4276 q = strrchr(redirect->filename, '>');
4279 redirect->stream_type = STREAM_TYPE_REDIRECT;
4281 } else if (!strcasecmp(cmd, "URL")) {
4283 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4284 } else if (!strcasecmp(cmd, "</Redirect>")) {
4286 fprintf(stderr, "%s:%d: No corresponding <Redirect> for </Redirect>\n",
4287 filename, line_num);
4290 if (!redirect->feed_filename[0]) {
4291 fprintf(stderr, "%s:%d: No URL found for <Redirect>\n",
4292 filename, line_num);
4296 } else if (!strcasecmp(cmd, "LoadModule")) {
4297 get_arg(arg, sizeof(arg), &p);
4301 fprintf(stderr, "%s:%d: Module support not compiled into this version: '%s'\n",
4302 filename, line_num, arg);
4306 fprintf(stderr, "%s:%d: Incorrect keyword: '%s'\n",
4307 filename, line_num, cmd);
4319 static void show_help(void)
4321 printf("usage: ffserver [-L] [-h] [-f configfile]\n"
4322 "Hyper fast multi format Audio/Video streaming server\n"
4324 "-L : print the LICENSE\n"
4326 "-f configfile : use configfile instead of /etc/ffserver.conf\n"
4330 static void handle_child_exit(int sig)
4335 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4338 for (feed = first_feed; feed; feed = feed->next) {
4339 if (feed->pid == pid) {
4340 int uptime = time(0) - feed->pid_start;
4343 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4346 /* Turn off any more restarts */
4347 feed->child_argv = 0;
4352 need_to_start_children = 1;
4355 int main(int argc, char **argv)
4357 const char *config_filename;
4359 struct sigaction sigact;
4363 show_banner(program_name, program_birth_year);
4365 config_filename = "/etc/ffserver.conf";
4367 my_program_name = argv[0];
4368 my_program_dir = getcwd(0, 0);
4369 ffserver_daemon = 1;
4372 c = getopt(argc, argv, "ndLh?f:");
4388 ffserver_daemon = 0;
4391 config_filename = optarg;
4398 putenv("http_proxy"); /* Kill the http_proxy */
4400 av_init_random(av_gettime() + (getpid() << 16), &random_state);
4402 /* address on which the server will handle HTTP connections */
4403 my_http_addr.sin_family = AF_INET;
4404 my_http_addr.sin_port = htons (8080);
4405 my_http_addr.sin_addr.s_addr = htonl (INADDR_ANY);
4407 /* address on which the server will handle RTSP connections */
4408 my_rtsp_addr.sin_family = AF_INET;
4409 my_rtsp_addr.sin_port = htons (5454);
4410 my_rtsp_addr.sin_addr.s_addr = htonl (INADDR_ANY);
4412 nb_max_connections = 5;
4413 max_bandwidth = 1000;
4414 first_stream = NULL;
4415 logfilename[0] = '\0';
4417 memset(&sigact, 0, sizeof(sigact));
4418 sigact.sa_handler = handle_child_exit;
4419 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4420 sigaction(SIGCHLD, &sigact, 0);
4422 if (parse_ffconfig(config_filename) < 0) {
4423 fprintf(stderr, "Incorrect config file - exiting.\n");
4427 build_file_streams();
4429 build_feed_streams();
4431 compute_bandwidth();
4433 /* put the process in background and detach it from its TTY */
4434 if (ffserver_daemon) {
4441 } else if (pid > 0) {
4449 open("/dev/null", O_RDWR);
4450 if (strcmp(logfilename, "-") != 0) {
4460 signal(SIGPIPE, SIG_IGN);
4462 /* open log file if needed */
4463 if (logfilename[0] != '\0') {
4464 if (!strcmp(logfilename, "-"))
4467 logfile = fopen(logfilename, "w");
4470 if (http_server() < 0) {
4471 fprintf(stderr, "Could not start server\n");