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
22 #define _XOPEN_SOURCE 600
26 #define closesocket close
31 #include "libavformat/avformat.h"
32 #include "libavformat/network.h"
33 #include "libavformat/os_support.h"
34 #include "libavformat/rtpdec.h"
35 #include "libavformat/rtsp.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/lfg.h"
38 #include "libavutil/random_seed.h"
39 #include "libavcodec/opt.h"
43 #include <sys/ioctl.h>
58 const char program_name[] = "FFserver";
59 const int program_birth_year = 2000;
61 static const OptionDef options[];
64 HTTPSTATE_WAIT_REQUEST,
65 HTTPSTATE_SEND_HEADER,
66 HTTPSTATE_SEND_DATA_HEADER,
67 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
68 HTTPSTATE_SEND_DATA_TRAILER,
69 HTTPSTATE_RECEIVE_DATA,
70 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
73 RTSPSTATE_WAIT_REQUEST,
75 RTSPSTATE_SEND_PACKET,
78 static const char *http_state[] = {
94 #define IOBUFFER_INIT_SIZE 8192
96 /* timeouts are in ms */
97 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
98 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
100 #define SYNC_TIMEOUT (10 * 1000)
102 typedef struct RTSPActionServerSetup {
104 char transport_option[512];
105 } RTSPActionServerSetup;
108 int64_t count1, count2;
109 int64_t time1, time2;
112 /* context associated with one connection */
113 typedef struct HTTPContext {
114 enum HTTPState state;
115 int fd; /* socket file descriptor */
116 struct sockaddr_in from_addr; /* origin */
117 struct pollfd *poll_entry; /* used when polling */
119 uint8_t *buffer_ptr, *buffer_end;
122 int chunked_encoding;
123 int chunk_size; /* 0 if it needs to be read */
124 struct HTTPContext *next;
125 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
129 /* input format handling */
130 AVFormatContext *fmt_in;
131 int64_t start_time; /* In milliseconds - this wraps fairly often */
132 int64_t first_pts; /* initial pts value */
133 int64_t cur_pts; /* current pts value from the stream in us */
134 int64_t cur_frame_duration; /* duration of the current frame in us */
135 int cur_frame_bytes; /* output frame size, needed to compute
136 the time at which we send each
138 int pts_stream_index; /* stream we choose as clock reference */
139 int64_t cur_clock; /* current clock reference value in us */
140 /* output format handling */
141 struct FFStream *stream;
142 /* -1 is invalid stream */
143 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
144 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
146 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
147 int last_packet_sent; /* true if last data packet was sent */
149 DataRateData datarate;
156 int is_packetized; /* if true, the stream is packetized */
157 int packet_stream_index; /* current stream for output in state machine */
159 /* RTSP state specific */
160 uint8_t *pb_buffer; /* XXX: use that in all the code */
162 int seq; /* RTSP sequence number */
164 /* RTP state specific */
165 enum RTSPLowerTransport rtp_protocol;
166 char session_id[32]; /* session id */
167 AVFormatContext *rtp_ctx[MAX_STREAMS];
169 /* RTP/UDP specific */
170 URLContext *rtp_handles[MAX_STREAMS];
172 /* RTP/TCP specific */
173 struct HTTPContext *rtsp_c;
174 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
177 /* each generated stream is described here */
181 STREAM_TYPE_REDIRECT,
184 enum IPAddressAction {
189 typedef struct IPAddressACL {
190 struct IPAddressACL *next;
191 enum IPAddressAction action;
192 /* These are in host order */
193 struct in_addr first;
197 /* description of each stream of the ffserver.conf file */
198 typedef struct FFStream {
199 enum StreamType stream_type;
200 char filename[1024]; /* stream filename */
201 struct FFStream *feed; /* feed we are using (can be null if
203 AVFormatParameters *ap_in; /* input parameters */
204 AVInputFormat *ifmt; /* if non NULL, force input format */
207 char dynamic_acl[1024];
209 int prebuffer; /* Number of millseconds early to start */
210 int64_t max_time; /* Number of milliseconds to run */
212 AVStream *streams[MAX_STREAMS];
213 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
214 char feed_filename[1024]; /* file name of the feed storage, or
215 input file name for a stream */
220 pid_t pid; /* Of ffmpeg process */
221 time_t pid_start; /* Of ffmpeg process */
223 struct FFStream *next;
224 unsigned bandwidth; /* bandwidth, in kbits/s */
227 /* multicast specific */
229 struct in_addr multicast_ip;
230 int multicast_port; /* first port used for multicast */
232 int loop; /* if true, send the stream in loops (only meaningful if file) */
235 int feed_opened; /* true if someone is writing to the feed */
236 int is_feed; /* true if it is a feed */
237 int readonly; /* True if writing is prohibited to the file */
238 int truncate; /* True if feeder connection truncate the feed file */
240 int64_t bytes_served;
241 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
242 int64_t feed_write_index; /* current write position in feed (it wraps around) */
243 int64_t feed_size; /* current size of feed */
244 struct FFStream *next_feed;
247 typedef struct FeedData {
248 long long data_count;
249 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
252 static struct sockaddr_in my_http_addr;
253 static struct sockaddr_in my_rtsp_addr;
255 static char logfilename[1024];
256 static HTTPContext *first_http_ctx;
257 static FFStream *first_feed; /* contains only feeds */
258 static FFStream *first_stream; /* contains all streams, including feeds */
260 static void new_connection(int server_fd, int is_rtsp);
261 static void close_connection(HTTPContext *c);
264 static int handle_connection(HTTPContext *c);
265 static int http_parse_request(HTTPContext *c);
266 static int http_send_data(HTTPContext *c);
267 static void compute_status(HTTPContext *c);
268 static int open_input_stream(HTTPContext *c, const char *info);
269 static int http_start_receive_data(HTTPContext *c);
270 static int http_receive_data(HTTPContext *c);
273 static int rtsp_parse_request(HTTPContext *c);
274 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
275 static void rtsp_cmd_options(HTTPContext *c, const char *url);
276 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
277 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
278 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
279 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
282 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
283 struct in_addr my_ip);
286 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
287 FFStream *stream, const char *session_id,
288 enum RTSPLowerTransport rtp_protocol);
289 static int rtp_new_av_stream(HTTPContext *c,
290 int stream_index, struct sockaddr_in *dest_addr,
291 HTTPContext *rtsp_c);
293 static const char *my_program_name;
294 static const char *my_program_dir;
296 static const char *config_filename = "/etc/ffserver.conf";
298 static int ffserver_debug;
299 static int ffserver_daemon;
300 static int no_launch;
301 static int need_to_start_children;
303 /* maximum number of simultaneous HTTP connections */
304 static unsigned int nb_max_http_connections = 2000;
305 static unsigned int nb_max_connections = 5;
306 static unsigned int nb_connections;
308 static uint64_t max_bandwidth = 1000;
309 static uint64_t current_bandwidth;
311 static int64_t cur_time; // Making this global saves on passing it around everywhere
313 static AVLFG random_state;
315 static FILE *logfile = NULL;
317 /* FIXME: make ffserver work with IPv6 */
318 /* resolve host with also IP address parsing */
319 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
322 if (!ff_inet_aton(hostname, sin_addr)) {
324 struct addrinfo *ai, *cur;
325 struct addrinfo hints;
326 memset(&hints, 0, sizeof(hints));
327 hints.ai_family = AF_INET;
328 if (getaddrinfo(hostname, NULL, &hints, &ai))
330 /* getaddrinfo returns a linked list of addrinfo structs.
331 * Even if we set ai_family = AF_INET above, make sure
332 * that the returned one actually is of the correct type. */
333 for (cur = ai; cur; cur = cur->ai_next) {
334 if (cur->ai_family == AF_INET) {
335 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
344 hp = gethostbyname(hostname);
347 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
353 static char *ctime1(char *buf2)
361 p = buf2 + strlen(p) - 1;
367 static void http_vlog(const char *fmt, va_list vargs)
369 static int print_prefix = 1;
374 fprintf(logfile, "%s ", buf);
376 print_prefix = strstr(fmt, "\n") != NULL;
377 vfprintf(logfile, fmt, vargs);
382 static void __attribute__ ((format (printf, 1, 2))) http_log(const char *fmt, ...)
385 va_start(vargs, fmt);
386 http_vlog(fmt, vargs);
390 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
392 static int print_prefix = 1;
393 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
394 if (level > av_log_get_level())
396 if (print_prefix && avc)
397 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
398 print_prefix = strstr(fmt, "\n") != NULL;
399 http_vlog(fmt, vargs);
402 static void log_connection(HTTPContext *c)
407 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
408 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
409 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
412 static void update_datarate(DataRateData *drd, int64_t count)
414 if (!drd->time1 && !drd->count1) {
415 drd->time1 = drd->time2 = cur_time;
416 drd->count1 = drd->count2 = count;
417 } else if (cur_time - drd->time2 > 5000) {
418 drd->time1 = drd->time2;
419 drd->count1 = drd->count2;
420 drd->time2 = cur_time;
425 /* In bytes per second */
426 static int compute_datarate(DataRateData *drd, int64_t count)
428 if (cur_time == drd->time1)
431 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
435 static void start_children(FFStream *feed)
440 for (; feed; feed = feed->next) {
441 if (feed->child_argv && !feed->pid) {
442 feed->pid_start = time(0);
447 http_log("Unable to create children\n");
456 av_strlcpy(pathname, my_program_name, sizeof(pathname));
458 slash = strrchr(pathname, '/');
463 strcpy(slash, "ffmpeg");
465 http_log("Launch commandline: ");
466 http_log("%s ", pathname);
467 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
468 http_log("%s ", feed->child_argv[i]);
471 for (i = 3; i < 256; i++)
474 if (!ffserver_debug) {
475 i = open("/dev/null", O_RDWR);
484 /* This is needed to make relative pathnames work */
485 chdir(my_program_dir);
487 signal(SIGPIPE, SIG_DFL);
489 execvp(pathname, feed->child_argv);
497 /* open a listening socket */
498 static int socket_open_listen(struct sockaddr_in *my_addr)
502 server_fd = socket(AF_INET,SOCK_STREAM,0);
509 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
511 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
513 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
515 closesocket(server_fd);
519 if (listen (server_fd, 5) < 0) {
521 closesocket(server_fd);
524 ff_socket_nonblock(server_fd, 1);
529 /* start all multicast streams */
530 static void start_multicast(void)
535 struct sockaddr_in dest_addr;
536 int default_port, stream_index;
539 for(stream = first_stream; stream != NULL; stream = stream->next) {
540 if (stream->is_multicast) {
541 /* open the RTP connection */
542 snprintf(session_id, sizeof(session_id), "%08x%08x",
543 av_lfg_get(&random_state), av_lfg_get(&random_state));
545 /* choose a port if none given */
546 if (stream->multicast_port == 0) {
547 stream->multicast_port = default_port;
551 dest_addr.sin_family = AF_INET;
552 dest_addr.sin_addr = stream->multicast_ip;
553 dest_addr.sin_port = htons(stream->multicast_port);
555 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
556 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
560 if (open_input_stream(rtp_c, "") < 0) {
561 http_log("Could not open input stream for stream '%s'\n",
566 /* open each RTP stream */
567 for(stream_index = 0; stream_index < stream->nb_streams;
569 dest_addr.sin_port = htons(stream->multicast_port +
571 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
572 http_log("Could not open output stream '%s/streamid=%d'\n",
573 stream->filename, stream_index);
578 /* change state to send data */
579 rtp_c->state = HTTPSTATE_SEND_DATA;
584 /* main loop of the http server */
585 static int http_server(void)
587 int server_fd = 0, rtsp_server_fd = 0;
588 int ret, delay, delay1;
589 struct pollfd *poll_table, *poll_entry;
590 HTTPContext *c, *c_next;
592 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
593 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
597 if (my_http_addr.sin_port) {
598 server_fd = socket_open_listen(&my_http_addr);
603 if (my_rtsp_addr.sin_port) {
604 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
605 if (rtsp_server_fd < 0)
609 if (!rtsp_server_fd && !server_fd) {
610 http_log("HTTP and RTSP disabled.\n");
614 http_log("FFserver started.\n");
616 start_children(first_feed);
621 poll_entry = poll_table;
623 poll_entry->fd = server_fd;
624 poll_entry->events = POLLIN;
627 if (rtsp_server_fd) {
628 poll_entry->fd = rtsp_server_fd;
629 poll_entry->events = POLLIN;
633 /* wait for events on each HTTP handle */
640 case HTTPSTATE_SEND_HEADER:
641 case RTSPSTATE_SEND_REPLY:
642 case RTSPSTATE_SEND_PACKET:
643 c->poll_entry = poll_entry;
645 poll_entry->events = POLLOUT;
648 case HTTPSTATE_SEND_DATA_HEADER:
649 case HTTPSTATE_SEND_DATA:
650 case HTTPSTATE_SEND_DATA_TRAILER:
651 if (!c->is_packetized) {
652 /* for TCP, we output as much as we can (may need to put a limit) */
653 c->poll_entry = poll_entry;
655 poll_entry->events = POLLOUT;
658 /* when ffserver is doing the timing, we work by
659 looking at which packet need to be sent every
661 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
666 case HTTPSTATE_WAIT_REQUEST:
667 case HTTPSTATE_RECEIVE_DATA:
668 case HTTPSTATE_WAIT_FEED:
669 case RTSPSTATE_WAIT_REQUEST:
670 /* need to catch errors */
671 c->poll_entry = poll_entry;
673 poll_entry->events = POLLIN;/* Maybe this will work */
677 c->poll_entry = NULL;
683 /* wait for an event on one connection. We poll at least every
684 second to handle timeouts */
686 ret = poll(poll_table, poll_entry - poll_table, delay);
687 if (ret < 0 && ff_neterrno() != FF_NETERROR(EAGAIN) &&
688 ff_neterrno() != FF_NETERROR(EINTR))
692 cur_time = av_gettime() / 1000;
694 if (need_to_start_children) {
695 need_to_start_children = 0;
696 start_children(first_feed);
699 /* now handle the events */
700 for(c = first_http_ctx; c != NULL; c = c_next) {
702 if (handle_connection(c) < 0) {
703 /* close and free the connection */
709 poll_entry = poll_table;
711 /* new HTTP connection request ? */
712 if (poll_entry->revents & POLLIN)
713 new_connection(server_fd, 0);
716 if (rtsp_server_fd) {
717 /* new RTSP connection request ? */
718 if (poll_entry->revents & POLLIN)
719 new_connection(rtsp_server_fd, 1);
724 /* start waiting for a new HTTP/RTSP request */
725 static void start_wait_request(HTTPContext *c, int is_rtsp)
727 c->buffer_ptr = c->buffer;
728 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
731 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
732 c->state = RTSPSTATE_WAIT_REQUEST;
734 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
735 c->state = HTTPSTATE_WAIT_REQUEST;
739 static void http_send_too_busy_reply(int fd)
742 int len = snprintf(buffer, sizeof(buffer),
743 "HTTP/1.0 200 Server too busy\r\n"
744 "Content-type: text/html\r\n"
746 "<html><head><title>Too busy</title></head><body>\r\n"
747 "<p>The server is too busy to serve your request at this time.</p>\r\n"
748 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
749 "</body></html>\r\n",
750 nb_connections, nb_max_connections);
751 send(fd, buffer, len, 0);
755 static void new_connection(int server_fd, int is_rtsp)
757 struct sockaddr_in from_addr;
759 HTTPContext *c = NULL;
761 len = sizeof(from_addr);
762 fd = accept(server_fd, (struct sockaddr *)&from_addr,
765 http_log("error during accept %s\n", strerror(errno));
768 ff_socket_nonblock(fd, 1);
770 if (nb_connections >= nb_max_connections) {
771 http_send_too_busy_reply(fd);
775 /* add a new connection */
776 c = av_mallocz(sizeof(HTTPContext));
781 c->poll_entry = NULL;
782 c->from_addr = from_addr;
783 c->buffer_size = IOBUFFER_INIT_SIZE;
784 c->buffer = av_malloc(c->buffer_size);
788 c->next = first_http_ctx;
792 start_wait_request(c, is_rtsp);
804 static void close_connection(HTTPContext *c)
806 HTTPContext **cp, *c1;
808 AVFormatContext *ctx;
812 /* remove connection from list */
813 cp = &first_http_ctx;
814 while ((*cp) != NULL) {
822 /* remove references, if any (XXX: do it faster) */
823 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
828 /* remove connection associated resources */
832 /* close each frame parser */
833 for(i=0;i<c->fmt_in->nb_streams;i++) {
834 st = c->fmt_in->streams[i];
835 if (st->codec->codec)
836 avcodec_close(st->codec);
838 av_close_input_file(c->fmt_in);
841 /* free RTP output streams if any */
844 nb_streams = c->stream->nb_streams;
846 for(i=0;i<nb_streams;i++) {
849 av_write_trailer(ctx);
852 h = c->rtp_handles[i];
859 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
862 if (url_open_dyn_buf(&ctx->pb) >= 0) {
863 av_write_trailer(ctx);
864 av_freep(&c->pb_buffer);
865 url_close_dyn_buf(ctx->pb, &c->pb_buffer);
870 for(i=0; i<ctx->nb_streams; i++)
871 av_free(ctx->streams[i]);
873 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
874 current_bandwidth -= c->stream->bandwidth;
876 /* signal that there is no feed if we are the feeder socket */
877 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
878 c->stream->feed_opened = 0;
882 av_freep(&c->pb_buffer);
883 av_freep(&c->packet_buffer);
889 static int handle_connection(HTTPContext *c)
894 case HTTPSTATE_WAIT_REQUEST:
895 case RTSPSTATE_WAIT_REQUEST:
897 if ((c->timeout - cur_time) < 0)
899 if (c->poll_entry->revents & (POLLERR | POLLHUP))
902 /* no need to read if no events */
903 if (!(c->poll_entry->revents & POLLIN))
907 len = recv(c->fd, c->buffer_ptr, 1, 0);
909 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
910 ff_neterrno() != FF_NETERROR(EINTR))
912 } else if (len == 0) {
915 /* search for end of request. */
917 c->buffer_ptr += len;
919 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
920 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
921 /* request found : parse it and reply */
922 if (c->state == HTTPSTATE_WAIT_REQUEST) {
923 ret = http_parse_request(c);
925 ret = rtsp_parse_request(c);
929 } else if (ptr >= c->buffer_end) {
930 /* request too long: cannot do anything */
932 } else goto read_loop;
936 case HTTPSTATE_SEND_HEADER:
937 if (c->poll_entry->revents & (POLLERR | POLLHUP))
940 /* no need to write if no events */
941 if (!(c->poll_entry->revents & POLLOUT))
943 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
945 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
946 ff_neterrno() != FF_NETERROR(EINTR)) {
947 /* error : close connection */
948 av_freep(&c->pb_buffer);
952 c->buffer_ptr += len;
954 c->stream->bytes_served += len;
955 c->data_count += len;
956 if (c->buffer_ptr >= c->buffer_end) {
957 av_freep(&c->pb_buffer);
961 /* all the buffer was sent : synchronize to the incoming stream */
962 c->state = HTTPSTATE_SEND_DATA_HEADER;
963 c->buffer_ptr = c->buffer_end = c->buffer;
968 case HTTPSTATE_SEND_DATA:
969 case HTTPSTATE_SEND_DATA_HEADER:
970 case HTTPSTATE_SEND_DATA_TRAILER:
971 /* for packetized output, we consider we can always write (the
972 input streams sets the speed). It may be better to verify
973 that we do not rely too much on the kernel queues */
974 if (!c->is_packetized) {
975 if (c->poll_entry->revents & (POLLERR | POLLHUP))
978 /* no need to read if no events */
979 if (!(c->poll_entry->revents & POLLOUT))
982 if (http_send_data(c) < 0)
984 /* close connection if trailer sent */
985 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
988 case HTTPSTATE_RECEIVE_DATA:
989 /* no need to read if no events */
990 if (c->poll_entry->revents & (POLLERR | POLLHUP))
992 if (!(c->poll_entry->revents & POLLIN))
994 if (http_receive_data(c) < 0)
997 case HTTPSTATE_WAIT_FEED:
998 /* no need to read if no events */
999 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1002 /* nothing to do, we'll be waken up by incoming feed packets */
1005 case RTSPSTATE_SEND_REPLY:
1006 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1007 av_freep(&c->pb_buffer);
1010 /* no need to write if no events */
1011 if (!(c->poll_entry->revents & POLLOUT))
1013 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1015 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
1016 ff_neterrno() != FF_NETERROR(EINTR)) {
1017 /* error : close connection */
1018 av_freep(&c->pb_buffer);
1022 c->buffer_ptr += len;
1023 c->data_count += len;
1024 if (c->buffer_ptr >= c->buffer_end) {
1025 /* all the buffer was sent : wait for a new request */
1026 av_freep(&c->pb_buffer);
1027 start_wait_request(c, 1);
1031 case RTSPSTATE_SEND_PACKET:
1032 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1033 av_freep(&c->packet_buffer);
1036 /* no need to write if no events */
1037 if (!(c->poll_entry->revents & POLLOUT))
1039 len = send(c->fd, c->packet_buffer_ptr,
1040 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1042 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
1043 ff_neterrno() != FF_NETERROR(EINTR)) {
1044 /* error : close connection */
1045 av_freep(&c->packet_buffer);
1049 c->packet_buffer_ptr += len;
1050 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1051 /* all the buffer was sent : wait for a new request */
1052 av_freep(&c->packet_buffer);
1053 c->state = RTSPSTATE_WAIT_REQUEST;
1057 case HTTPSTATE_READY:
1066 static int extract_rates(char *rates, int ratelen, const char *request)
1070 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1071 if (strncasecmp(p, "Pragma:", 7) == 0) {
1072 const char *q = p + 7;
1074 while (*q && *q != '\n' && isspace(*q))
1077 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1083 memset(rates, 0xff, ratelen);
1086 while (*q && *q != '\n' && *q != ':')
1089 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1093 if (stream_no < ratelen && stream_no >= 0)
1094 rates[stream_no] = rate_no;
1096 while (*q && *q != '\n' && !isspace(*q))
1103 p = strchr(p, '\n');
1113 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1116 int best_bitrate = 100000000;
1119 for (i = 0; i < feed->nb_streams; i++) {
1120 AVCodecContext *feed_codec = feed->streams[i]->codec;
1122 if (feed_codec->codec_id != codec->codec_id ||
1123 feed_codec->sample_rate != codec->sample_rate ||
1124 feed_codec->width != codec->width ||
1125 feed_codec->height != codec->height)
1128 /* Potential stream */
1130 /* We want the fastest stream less than bit_rate, or the slowest
1131 * faster than bit_rate
1134 if (feed_codec->bit_rate <= bit_rate) {
1135 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1136 best_bitrate = feed_codec->bit_rate;
1140 if (feed_codec->bit_rate < best_bitrate) {
1141 best_bitrate = feed_codec->bit_rate;
1150 static int modify_current_stream(HTTPContext *c, char *rates)
1153 FFStream *req = c->stream;
1154 int action_required = 0;
1156 /* Not much we can do for a feed */
1160 for (i = 0; i < req->nb_streams; i++) {
1161 AVCodecContext *codec = req->streams[i]->codec;
1165 c->switch_feed_streams[i] = req->feed_streams[i];
1168 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1171 /* Wants off or slow */
1172 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1174 /* This doesn't work well when it turns off the only stream! */
1175 c->switch_feed_streams[i] = -2;
1176 c->feed_streams[i] = -2;
1181 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1182 action_required = 1;
1185 return action_required;
1189 static void do_switch_stream(HTTPContext *c, int i)
1191 if (c->switch_feed_streams[i] >= 0) {
1193 c->feed_streams[i] = c->switch_feed_streams[i];
1196 /* Now update the stream */
1198 c->switch_feed_streams[i] = -1;
1201 /* XXX: factorize in utils.c ? */
1202 /* XXX: take care with different space meaning */
1203 static void skip_spaces(const char **pp)
1207 while (*p == ' ' || *p == '\t')
1212 static void get_word(char *buf, int buf_size, const char **pp)
1220 while (!isspace(*p) && *p != '\0') {
1221 if ((q - buf) < buf_size - 1)
1230 static void get_arg(char *buf, int buf_size, const char **pp)
1237 while (isspace(*p)) p++;
1240 if (*p == '\"' || *p == '\'')
1252 if ((q - buf) < buf_size - 1)
1257 if (quote && *p == quote)
1262 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1263 const char *p, const char *filename, int line_num)
1269 get_arg(arg, sizeof(arg), &p);
1270 if (strcasecmp(arg, "allow") == 0)
1271 acl.action = IP_ALLOW;
1272 else if (strcasecmp(arg, "deny") == 0)
1273 acl.action = IP_DENY;
1275 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1276 filename, line_num, arg);
1280 get_arg(arg, sizeof(arg), &p);
1282 if (resolve_host(&acl.first, arg) != 0) {
1283 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1284 filename, line_num, arg);
1287 acl.last = acl.first;
1289 get_arg(arg, sizeof(arg), &p);
1292 if (resolve_host(&acl.last, arg) != 0) {
1293 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1294 filename, line_num, arg);
1300 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1301 IPAddressACL **naclp = 0;
1307 naclp = &stream->acl;
1313 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1314 filename, line_num);
1320 naclp = &(*naclp)->next;
1328 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1333 IPAddressACL *acl = NULL;
1337 f = fopen(stream->dynamic_acl, "r");
1339 perror(stream->dynamic_acl);
1343 acl = av_mallocz(sizeof(IPAddressACL));
1347 if (fgets(line, sizeof(line), f) == NULL)
1353 if (*p == '\0' || *p == '#')
1355 get_arg(cmd, sizeof(cmd), &p);
1357 if (!strcasecmp(cmd, "ACL"))
1358 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1365 static void free_acl_list(IPAddressACL *in_acl)
1367 IPAddressACL *pacl,*pacl2;
1377 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1379 enum IPAddressAction last_action = IP_DENY;
1381 struct in_addr *src = &c->from_addr.sin_addr;
1382 unsigned long src_addr = src->s_addr;
1384 for (acl = in_acl; acl; acl = acl->next) {
1385 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1386 return (acl->action == IP_ALLOW) ? 1 : 0;
1387 last_action = acl->action;
1390 /* Nothing matched, so return not the last action */
1391 return (last_action == IP_DENY) ? 1 : 0;
1394 static int validate_acl(FFStream *stream, HTTPContext *c)
1400 /* if stream->acl is null validate_acl_list will return 1 */
1401 ret = validate_acl_list(stream->acl, c);
1403 if (stream->dynamic_acl[0]) {
1404 acl = parse_dynamic_acl(stream, c);
1406 ret = validate_acl_list(acl, c);
1414 /* compute the real filename of a file by matching it without its
1415 extensions to all the stream filenames */
1416 static void compute_real_filename(char *filename, int max_size)
1423 /* compute filename by matching without the file extensions */
1424 av_strlcpy(file1, filename, sizeof(file1));
1425 p = strrchr(file1, '.');
1428 for(stream = first_stream; stream != NULL; stream = stream->next) {
1429 av_strlcpy(file2, stream->filename, sizeof(file2));
1430 p = strrchr(file2, '.');
1433 if (!strcmp(file1, file2)) {
1434 av_strlcpy(filename, stream->filename, max_size);
1449 /* parse http request and prepare header */
1450 static int http_parse_request(HTTPContext *c)
1453 enum RedirType redir_type;
1455 char info[1024], filename[1024];
1459 const char *mime_type;
1463 char *useragent = 0;
1466 get_word(cmd, sizeof(cmd), (const char **)&p);
1467 av_strlcpy(c->method, cmd, sizeof(c->method));
1469 if (!strcmp(cmd, "GET"))
1471 else if (!strcmp(cmd, "POST"))
1476 get_word(url, sizeof(url), (const char **)&p);
1477 av_strlcpy(c->url, url, sizeof(c->url));
1479 get_word(protocol, sizeof(protocol), (const char **)&p);
1480 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1483 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1486 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1488 /* find the filename and the optional info string in the request */
1489 p = strchr(url, '?');
1491 av_strlcpy(info, p, sizeof(info));
1496 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1498 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1499 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1501 if (*useragent && *useragent != '\n' && isspace(*useragent))
1505 p = strchr(p, '\n');
1512 redir_type = REDIR_NONE;
1513 if (av_match_ext(filename, "asx")) {
1514 redir_type = REDIR_ASX;
1515 filename[strlen(filename)-1] = 'f';
1516 } else if (av_match_ext(filename, "asf") &&
1517 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1518 /* if this isn't WMP or lookalike, return the redirector file */
1519 redir_type = REDIR_ASF;
1520 } else if (av_match_ext(filename, "rpm,ram")) {
1521 redir_type = REDIR_RAM;
1522 strcpy(filename + strlen(filename)-2, "m");
1523 } else if (av_match_ext(filename, "rtsp")) {
1524 redir_type = REDIR_RTSP;
1525 compute_real_filename(filename, sizeof(filename) - 1);
1526 } else if (av_match_ext(filename, "sdp")) {
1527 redir_type = REDIR_SDP;
1528 compute_real_filename(filename, sizeof(filename) - 1);
1531 // "redirect" / request to index.html
1532 if (!strlen(filename))
1533 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1535 stream = first_stream;
1536 while (stream != NULL) {
1537 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1539 stream = stream->next;
1541 if (stream == NULL) {
1542 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1543 http_log("File '%s' not found\n", url);
1548 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1549 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1551 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1552 c->http_error = 301;
1554 q += snprintf(q, c->buffer_size,
1555 "HTTP/1.0 301 Moved\r\n"
1557 "Content-type: text/html\r\n"
1559 "<html><head><title>Moved</title></head><body>\r\n"
1560 "You should be <a href=\"%s\">redirected</a>.\r\n"
1561 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1562 /* prepare output buffer */
1563 c->buffer_ptr = c->buffer;
1565 c->state = HTTPSTATE_SEND_HEADER;
1569 /* If this is WMP, get the rate information */
1570 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1571 if (modify_current_stream(c, ratebuf)) {
1572 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1573 if (c->switch_feed_streams[i] >= 0)
1574 do_switch_stream(c, i);
1579 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1580 current_bandwidth += stream->bandwidth;
1582 /* If already streaming this feed, do not let start another feeder. */
1583 if (stream->feed_opened) {
1584 snprintf(msg, sizeof(msg), "This feed is already being received.");
1585 http_log("Feed '%s' already being received\n", stream->feed_filename);
1589 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1590 c->http_error = 200;
1592 q += snprintf(q, c->buffer_size,
1593 "HTTP/1.0 200 Server too busy\r\n"
1594 "Content-type: text/html\r\n"
1596 "<html><head><title>Too busy</title></head><body>\r\n"
1597 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1598 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1599 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1600 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1601 /* prepare output buffer */
1602 c->buffer_ptr = c->buffer;
1604 c->state = HTTPSTATE_SEND_HEADER;
1608 if (redir_type != REDIR_NONE) {
1611 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1612 if (strncasecmp(p, "Host:", 5) == 0) {
1616 p = strchr(p, '\n');
1627 while (isspace(*hostinfo))
1630 eoh = strchr(hostinfo, '\n');
1632 if (eoh[-1] == '\r')
1635 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1636 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1637 hostbuf[eoh - hostinfo] = 0;
1639 c->http_error = 200;
1641 switch(redir_type) {
1643 q += snprintf(q, c->buffer_size,
1644 "HTTP/1.0 200 ASX Follows\r\n"
1645 "Content-type: video/x-ms-asf\r\n"
1647 "<ASX Version=\"3\">\r\n"
1648 //"<!-- Autogenerated by ffserver -->\r\n"
1649 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1650 "</ASX>\r\n", hostbuf, filename, info);
1653 q += snprintf(q, c->buffer_size,
1654 "HTTP/1.0 200 RAM Follows\r\n"
1655 "Content-type: audio/x-pn-realaudio\r\n"
1657 "# Autogenerated by ffserver\r\n"
1658 "http://%s/%s%s\r\n", hostbuf, filename, info);
1661 q += snprintf(q, c->buffer_size,
1662 "HTTP/1.0 200 ASF Redirect follows\r\n"
1663 "Content-type: video/x-ms-asf\r\n"
1666 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1670 char hostname[256], *p;
1671 /* extract only hostname */
1672 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1673 p = strrchr(hostname, ':');
1676 q += snprintf(q, c->buffer_size,
1677 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1678 /* XXX: incorrect mime type ? */
1679 "Content-type: application/x-rtsp\r\n"
1681 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1687 int sdp_data_size, len;
1688 struct sockaddr_in my_addr;
1690 q += snprintf(q, c->buffer_size,
1691 "HTTP/1.0 200 OK\r\n"
1692 "Content-type: application/sdp\r\n"
1695 len = sizeof(my_addr);
1696 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1698 /* XXX: should use a dynamic buffer */
1699 sdp_data_size = prepare_sdp_description(stream,
1702 if (sdp_data_size > 0) {
1703 memcpy(q, sdp_data, sdp_data_size);
1715 /* prepare output buffer */
1716 c->buffer_ptr = c->buffer;
1718 c->state = HTTPSTATE_SEND_HEADER;
1724 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1728 stream->conns_served++;
1730 /* XXX: add there authenticate and IP match */
1733 /* if post, it means a feed is being sent */
1734 if (!stream->is_feed) {
1735 /* However it might be a status report from WMP! Let us log the
1736 * data as it might come in handy one day. */
1740 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1741 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1745 if (strncasecmp(p, "Pragma: client-id=", 18) == 0)
1746 client_id = strtol(p + 18, 0, 10);
1747 p = strchr(p, '\n');
1755 char *eol = strchr(logline, '\n');
1760 if (eol[-1] == '\r')
1762 http_log("%.*s\n", (int) (eol - logline), logline);
1763 c->suppress_log = 1;
1768 http_log("\nGot request:\n%s\n", c->buffer);
1771 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1774 /* Now we have to find the client_id */
1775 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1776 if (wmpc->wmp_client_id == client_id)
1780 if (wmpc && modify_current_stream(wmpc, ratebuf))
1781 wmpc->switch_pending = 1;
1784 snprintf(msg, sizeof(msg), "POST command not handled");
1788 if (http_start_receive_data(c) < 0) {
1789 snprintf(msg, sizeof(msg), "could not open feed");
1793 c->state = HTTPSTATE_RECEIVE_DATA;
1798 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1799 http_log("\nGot request:\n%s\n", c->buffer);
1802 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1805 /* open input stream */
1806 if (open_input_stream(c, info) < 0) {
1807 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1811 /* prepare http header */
1813 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1814 mime_type = c->stream->fmt->mime_type;
1816 mime_type = "application/x-octet-stream";
1817 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
1819 /* for asf, we need extra headers */
1820 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1821 /* Need to allocate a client id */
1823 c->wmp_client_id = av_lfg_get(&random_state);
1825 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);
1827 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1828 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1830 /* prepare output buffer */
1832 c->buffer_ptr = c->buffer;
1834 c->state = HTTPSTATE_SEND_HEADER;
1837 c->http_error = 404;
1839 q += snprintf(q, c->buffer_size,
1840 "HTTP/1.0 404 Not Found\r\n"
1841 "Content-type: text/html\r\n"
1844 "<head><title>404 Not Found</title></head>\n"
1847 /* prepare output buffer */
1848 c->buffer_ptr = c->buffer;
1850 c->state = HTTPSTATE_SEND_HEADER;
1854 c->http_error = 200; /* horrible : we use this value to avoid
1855 going to the send data state */
1856 c->state = HTTPSTATE_SEND_HEADER;
1860 static void fmt_bytecount(ByteIOContext *pb, int64_t count)
1862 static const char *suffix = " kMGTP";
1865 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1867 url_fprintf(pb, "%"PRId64"%c", count, *s);
1870 static void compute_status(HTTPContext *c)
1879 if (url_open_dyn_buf(&pb) < 0) {
1880 /* XXX: return an error ? */
1881 c->buffer_ptr = c->buffer;
1882 c->buffer_end = c->buffer;
1886 url_fprintf(pb, "HTTP/1.0 200 OK\r\n");
1887 url_fprintf(pb, "Content-type: %s\r\n", "text/html");
1888 url_fprintf(pb, "Pragma: no-cache\r\n");
1889 url_fprintf(pb, "\r\n");
1891 url_fprintf(pb, "<html><head><title>%s Status</title>\n", program_name);
1892 if (c->stream->feed_filename[0])
1893 url_fprintf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1894 url_fprintf(pb, "</head>\n<body>");
1895 url_fprintf(pb, "<h1>%s Status</h1>\n", program_name);
1897 url_fprintf(pb, "<h2>Available Streams</h2>\n");
1898 url_fprintf(pb, "<table cellspacing=0 cellpadding=4>\n");
1899 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");
1900 stream = first_stream;
1901 while (stream != NULL) {
1902 char sfilename[1024];
1905 if (stream->feed != stream) {
1906 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1907 eosf = sfilename + strlen(sfilename);
1908 if (eosf - sfilename >= 4) {
1909 if (strcmp(eosf - 4, ".asf") == 0)
1910 strcpy(eosf - 4, ".asx");
1911 else if (strcmp(eosf - 3, ".rm") == 0)
1912 strcpy(eosf - 3, ".ram");
1913 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1914 /* generate a sample RTSP director if
1915 unicast. Generate an SDP redirector if
1917 eosf = strrchr(sfilename, '.');
1919 eosf = sfilename + strlen(sfilename);
1920 if (stream->is_multicast)
1921 strcpy(eosf, ".sdp");
1923 strcpy(eosf, ".rtsp");
1927 url_fprintf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1928 sfilename, stream->filename);
1929 url_fprintf(pb, "<td align=right> %d <td align=right> ",
1930 stream->conns_served);
1931 fmt_bytecount(pb, stream->bytes_served);
1932 switch(stream->stream_type) {
1933 case STREAM_TYPE_LIVE: {
1934 int audio_bit_rate = 0;
1935 int video_bit_rate = 0;
1936 const char *audio_codec_name = "";
1937 const char *video_codec_name = "";
1938 const char *audio_codec_name_extra = "";
1939 const char *video_codec_name_extra = "";
1941 for(i=0;i<stream->nb_streams;i++) {
1942 AVStream *st = stream->streams[i];
1943 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1944 switch(st->codec->codec_type) {
1945 case AVMEDIA_TYPE_AUDIO:
1946 audio_bit_rate += st->codec->bit_rate;
1948 if (*audio_codec_name)
1949 audio_codec_name_extra = "...";
1950 audio_codec_name = codec->name;
1953 case AVMEDIA_TYPE_VIDEO:
1954 video_bit_rate += st->codec->bit_rate;
1956 if (*video_codec_name)
1957 video_codec_name_extra = "...";
1958 video_codec_name = codec->name;
1961 case AVMEDIA_TYPE_DATA:
1962 video_bit_rate += st->codec->bit_rate;
1968 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",
1971 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1972 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
1974 url_fprintf(pb, "<td>%s", stream->feed->filename);
1976 url_fprintf(pb, "<td>%s", stream->feed_filename);
1977 url_fprintf(pb, "\n");
1981 url_fprintf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
1985 stream = stream->next;
1987 url_fprintf(pb, "</table>\n");
1989 stream = first_stream;
1990 while (stream != NULL) {
1991 if (stream->feed == stream) {
1992 url_fprintf(pb, "<h2>Feed %s</h2>", stream->filename);
1994 url_fprintf(pb, "Running as pid %d.\n", stream->pid);
1996 #if defined(linux) && !defined(CONFIG_NOCUTILS)
2001 /* This is somewhat linux specific I guess */
2002 snprintf(ps_cmd, sizeof(ps_cmd),
2003 "ps -o \"%%cpu,cputime\" --no-headers %d",
2006 pid_stat = popen(ps_cmd, "r");
2011 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2013 url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2021 url_fprintf(pb, "<p>");
2023 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");
2025 for (i = 0; i < stream->nb_streams; i++) {
2026 AVStream *st = stream->streams[i];
2027 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2028 const char *type = "unknown";
2029 char parameters[64];
2033 switch(st->codec->codec_type) {
2034 case AVMEDIA_TYPE_AUDIO:
2036 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2038 case AVMEDIA_TYPE_VIDEO:
2040 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2041 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2046 url_fprintf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2047 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2049 url_fprintf(pb, "</table>\n");
2052 stream = stream->next;
2055 /* connection status */
2056 url_fprintf(pb, "<h2>Connection Status</h2>\n");
2058 url_fprintf(pb, "Number of connections: %d / %d<br>\n",
2059 nb_connections, nb_max_connections);
2061 url_fprintf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2062 current_bandwidth, max_bandwidth);
2064 url_fprintf(pb, "<table>\n");
2065 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");
2066 c1 = first_http_ctx;
2068 while (c1 != NULL) {
2074 for (j = 0; j < c1->stream->nb_streams; j++) {
2075 if (!c1->stream->feed)
2076 bitrate += c1->stream->streams[j]->codec->bit_rate;
2077 else if (c1->feed_streams[j] >= 0)
2078 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2083 p = inet_ntoa(c1->from_addr.sin_addr);
2084 url_fprintf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2086 c1->stream ? c1->stream->filename : "",
2087 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2090 http_state[c1->state]);
2091 fmt_bytecount(pb, bitrate);
2092 url_fprintf(pb, "<td align=right>");
2093 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2094 url_fprintf(pb, "<td align=right>");
2095 fmt_bytecount(pb, c1->data_count);
2096 url_fprintf(pb, "\n");
2099 url_fprintf(pb, "</table>\n");
2104 url_fprintf(pb, "<hr size=1 noshade>Generated at %s", p);
2105 url_fprintf(pb, "</body>\n</html>\n");
2107 len = url_close_dyn_buf(pb, &c->pb_buffer);
2108 c->buffer_ptr = c->pb_buffer;
2109 c->buffer_end = c->pb_buffer + len;
2112 /* check if the parser needs to be opened for stream i */
2113 static void open_parser(AVFormatContext *s, int i)
2115 AVStream *st = s->streams[i];
2118 if (!st->codec->codec) {
2119 codec = avcodec_find_decoder(st->codec->codec_id);
2120 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
2121 st->codec->parse_only = 1;
2122 if (avcodec_open(st->codec, codec) < 0)
2123 st->codec->parse_only = 0;
2128 static int open_input_stream(HTTPContext *c, const char *info)
2131 char input_filename[1024];
2133 int buf_size, i, ret;
2136 /* find file name */
2137 if (c->stream->feed) {
2138 strcpy(input_filename, c->stream->feed->feed_filename);
2139 buf_size = FFM_PACKET_SIZE;
2140 /* compute position (absolute time) */
2141 if (find_info_tag(buf, sizeof(buf), "date", info)) {
2142 stream_pos = parse_date(buf, 0);
2143 if (stream_pos == INT64_MIN)
2145 } else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
2146 int prebuffer = strtol(buf, 0, 10);
2147 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2149 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2151 strcpy(input_filename, c->stream->feed_filename);
2153 /* compute position (relative time) */
2154 if (find_info_tag(buf, sizeof(buf), "date", info)) {
2155 stream_pos = parse_date(buf, 1);
2156 if (stream_pos == INT64_MIN)
2161 if (input_filename[0] == '\0')
2165 if ((ret = av_open_input_file(&s, input_filename, c->stream->ifmt,
2166 buf_size, c->stream->ap_in)) < 0) {
2167 http_log("could not open %s: %d\n", input_filename, ret);
2170 s->flags |= AVFMT_FLAG_GENPTS;
2172 if (strcmp(s->iformat->name, "ffm") && av_find_stream_info(c->fmt_in) < 0) {
2173 http_log("Could not find stream info '%s'\n", input_filename);
2174 av_close_input_file(s);
2178 /* open each parser */
2179 for(i=0;i<s->nb_streams;i++)
2182 /* choose stream as clock source (we favorize video stream if
2183 present) for packet sending */
2184 c->pts_stream_index = 0;
2185 for(i=0;i<c->stream->nb_streams;i++) {
2186 if (c->pts_stream_index == 0 &&
2187 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2188 c->pts_stream_index = i;
2193 if (c->fmt_in->iformat->read_seek)
2194 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2196 /* set the start time (needed for maxtime and RTP packet timing) */
2197 c->start_time = cur_time;
2198 c->first_pts = AV_NOPTS_VALUE;
2202 /* return the server clock (in us) */
2203 static int64_t get_server_clock(HTTPContext *c)
2205 /* compute current pts value from system time */
2206 return (cur_time - c->start_time) * 1000;
2209 /* return the estimated time at which the current packet must be sent
2211 static int64_t get_packet_send_clock(HTTPContext *c)
2213 int bytes_left, bytes_sent, frame_bytes;
2215 frame_bytes = c->cur_frame_bytes;
2216 if (frame_bytes <= 0)
2219 bytes_left = c->buffer_end - c->buffer_ptr;
2220 bytes_sent = frame_bytes - bytes_left;
2221 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2226 static int http_prepare_data(HTTPContext *c)
2229 AVFormatContext *ctx;
2231 av_freep(&c->pb_buffer);
2233 case HTTPSTATE_SEND_DATA_HEADER:
2234 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2235 av_metadata_set(&c->fmt_ctx.metadata, "author" ,c->stream->author);
2236 av_metadata_set(&c->fmt_ctx.metadata, "comment" ,c->stream->comment);
2237 av_metadata_set(&c->fmt_ctx.metadata, "copyright",c->stream->copyright);
2238 av_metadata_set(&c->fmt_ctx.metadata, "title" ,c->stream->title);
2240 for(i=0;i<c->stream->nb_streams;i++) {
2243 st = av_mallocz(sizeof(AVStream));
2244 c->fmt_ctx.streams[i] = st;
2245 /* if file or feed, then just take streams from FFStream struct */
2246 if (!c->stream->feed ||
2247 c->stream->feed == c->stream)
2248 src = c->stream->streams[i];
2250 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2254 st->codec->frame_number = 0; /* XXX: should be done in
2255 AVStream, not in codec */
2257 /* set output format parameters */
2258 c->fmt_ctx.oformat = c->stream->fmt;
2259 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2261 c->got_key_frame = 0;
2263 /* prepare header and save header data in a stream */
2264 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2265 /* XXX: potential leak */
2268 c->fmt_ctx.pb->is_streamed = 1;
2271 * HACK to avoid mpeg ps muxer to spit many underflow errors
2272 * Default value from FFmpeg
2273 * Try to set it use configuration option
2275 c->fmt_ctx.preload = (int)(0.5*AV_TIME_BASE);
2276 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2278 av_set_parameters(&c->fmt_ctx, NULL);
2279 if (av_write_header(&c->fmt_ctx) < 0) {
2280 http_log("Error writing output header\n");
2284 len = url_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2285 c->buffer_ptr = c->pb_buffer;
2286 c->buffer_end = c->pb_buffer + len;
2288 c->state = HTTPSTATE_SEND_DATA;
2289 c->last_packet_sent = 0;
2291 case HTTPSTATE_SEND_DATA:
2292 /* find a new packet */
2293 /* read a packet from the input stream */
2294 if (c->stream->feed)
2295 ffm_set_write_index(c->fmt_in,
2296 c->stream->feed->feed_write_index,
2297 c->stream->feed->feed_size);
2299 if (c->stream->max_time &&
2300 c->stream->max_time + c->start_time - cur_time < 0)
2301 /* We have timed out */
2302 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2306 if (av_read_frame(c->fmt_in, &pkt) < 0) {
2307 if (c->stream->feed && c->stream->feed->feed_opened) {
2308 /* if coming from feed, it means we reached the end of the
2309 ffm file, so must wait for more data */
2310 c->state = HTTPSTATE_WAIT_FEED;
2311 return 1; /* state changed */
2313 if (c->stream->loop) {
2314 av_close_input_file(c->fmt_in);
2316 if (open_input_stream(c, "") < 0)
2321 /* must send trailer now because eof or error */
2322 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2326 int source_index = pkt.stream_index;
2327 /* update first pts if needed */
2328 if (c->first_pts == AV_NOPTS_VALUE) {
2329 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2330 c->start_time = cur_time;
2332 /* send it to the appropriate stream */
2333 if (c->stream->feed) {
2334 /* if coming from a feed, select the right stream */
2335 if (c->switch_pending) {
2336 c->switch_pending = 0;
2337 for(i=0;i<c->stream->nb_streams;i++) {
2338 if (c->switch_feed_streams[i] == pkt.stream_index)
2339 if (pkt.flags & AV_PKT_FLAG_KEY)
2340 do_switch_stream(c, i);
2341 if (c->switch_feed_streams[i] >= 0)
2342 c->switch_pending = 1;
2345 for(i=0;i<c->stream->nb_streams;i++) {
2346 if (c->feed_streams[i] == pkt.stream_index) {
2347 AVStream *st = c->fmt_in->streams[source_index];
2348 pkt.stream_index = i;
2349 if (pkt.flags & AV_PKT_FLAG_KEY &&
2350 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2351 c->stream->nb_streams == 1))
2352 c->got_key_frame = 1;
2353 if (!c->stream->send_on_key || c->got_key_frame)
2358 AVCodecContext *codec;
2359 AVStream *ist, *ost;
2361 ist = c->fmt_in->streams[source_index];
2362 /* specific handling for RTP: we use several
2363 output stream (one for each RTP
2364 connection). XXX: need more abstract handling */
2365 if (c->is_packetized) {
2366 /* compute send time and duration */
2367 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2368 if (ist->start_time != AV_NOPTS_VALUE)
2369 c->cur_pts -= av_rescale_q(ist->start_time, ist->time_base, AV_TIME_BASE_Q);
2370 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2371 /* find RTP context */
2372 c->packet_stream_index = pkt.stream_index;
2373 ctx = c->rtp_ctx[c->packet_stream_index];
2375 av_free_packet(&pkt);
2378 codec = ctx->streams[0]->codec;
2379 /* only one stream per RTP connection */
2380 pkt.stream_index = 0;
2384 codec = ctx->streams[pkt.stream_index]->codec;
2387 if (c->is_packetized) {
2388 int max_packet_size;
2389 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2390 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2392 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
2393 ret = url_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2395 ret = url_open_dyn_buf(&ctx->pb);
2398 /* XXX: potential leak */
2401 ost = ctx->streams[pkt.stream_index];
2403 ctx->pb->is_streamed = 1;
2404 if (pkt.dts != AV_NOPTS_VALUE)
2405 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2406 if (pkt.pts != AV_NOPTS_VALUE)
2407 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2408 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2409 if (av_write_frame(ctx, &pkt) < 0) {
2410 http_log("Error writing frame to output\n");
2411 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2414 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2415 c->cur_frame_bytes = len;
2416 c->buffer_ptr = c->pb_buffer;
2417 c->buffer_end = c->pb_buffer + len;
2419 codec->frame_number++;
2421 av_free_packet(&pkt);
2425 av_free_packet(&pkt);
2430 case HTTPSTATE_SEND_DATA_TRAILER:
2431 /* last packet test ? */
2432 if (c->last_packet_sent || c->is_packetized)
2435 /* prepare header */
2436 if (url_open_dyn_buf(&ctx->pb) < 0) {
2437 /* XXX: potential leak */
2440 c->fmt_ctx.pb->is_streamed = 1;
2441 av_write_trailer(ctx);
2442 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2443 c->buffer_ptr = c->pb_buffer;
2444 c->buffer_end = c->pb_buffer + len;
2446 c->last_packet_sent = 1;
2452 /* should convert the format at the same time */
2453 /* send data starting at c->buffer_ptr to the output connection
2454 (either UDP or TCP connection) */
2455 static int http_send_data(HTTPContext *c)
2460 if (c->buffer_ptr >= c->buffer_end) {
2461 ret = http_prepare_data(c);
2465 /* state change requested */
2468 if (c->is_packetized) {
2469 /* RTP data output */
2470 len = c->buffer_end - c->buffer_ptr;
2472 /* fail safe - should never happen */
2474 c->buffer_ptr = c->buffer_end;
2477 len = (c->buffer_ptr[0] << 24) |
2478 (c->buffer_ptr[1] << 16) |
2479 (c->buffer_ptr[2] << 8) |
2481 if (len > (c->buffer_end - c->buffer_ptr))
2483 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2484 /* nothing to send yet: we can wait */
2488 c->data_count += len;
2489 update_datarate(&c->datarate, c->data_count);
2491 c->stream->bytes_served += len;
2493 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2494 /* RTP packets are sent inside the RTSP TCP connection */
2496 int interleaved_index, size;
2498 HTTPContext *rtsp_c;
2501 /* if no RTSP connection left, error */
2504 /* if already sending something, then wait. */
2505 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2507 if (url_open_dyn_buf(&pb) < 0)
2509 interleaved_index = c->packet_stream_index * 2;
2510 /* RTCP packets are sent at odd indexes */
2511 if (c->buffer_ptr[1] == 200)
2512 interleaved_index++;
2513 /* write RTSP TCP header */
2515 header[1] = interleaved_index;
2516 header[2] = len >> 8;
2518 put_buffer(pb, header, 4);
2519 /* write RTP packet data */
2521 put_buffer(pb, c->buffer_ptr, len);
2522 size = url_close_dyn_buf(pb, &c->packet_buffer);
2523 /* prepare asynchronous TCP sending */
2524 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2525 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2526 c->buffer_ptr += len;
2528 /* send everything we can NOW */
2529 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2530 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2532 rtsp_c->packet_buffer_ptr += len;
2533 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2534 /* if we could not send all the data, we will
2535 send it later, so a new state is needed to
2536 "lock" the RTSP TCP connection */
2537 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2540 /* all data has been sent */
2541 av_freep(&c->packet_buffer);
2543 /* send RTP packet directly in UDP */
2545 url_write(c->rtp_handles[c->packet_stream_index],
2546 c->buffer_ptr, len);
2547 c->buffer_ptr += len;
2548 /* here we continue as we can send several packets per 10 ms slot */
2551 /* TCP data output */
2552 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2554 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2555 ff_neterrno() != FF_NETERROR(EINTR))
2556 /* error : close connection */
2561 c->buffer_ptr += len;
2563 c->data_count += len;
2564 update_datarate(&c->datarate, c->data_count);
2566 c->stream->bytes_served += len;
2574 static int http_start_receive_data(HTTPContext *c)
2578 if (c->stream->feed_opened)
2581 /* Don't permit writing to this one */
2582 if (c->stream->readonly)
2586 fd = open(c->stream->feed_filename, O_RDWR);
2588 http_log("Error opening feeder file: %s\n", strerror(errno));
2593 if (c->stream->truncate) {
2594 /* truncate feed file */
2595 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2596 ftruncate(c->feed_fd, FFM_PACKET_SIZE);
2597 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2599 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2600 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2605 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2606 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2607 lseek(fd, 0, SEEK_SET);
2609 /* init buffer input */
2610 c->buffer_ptr = c->buffer;
2611 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2612 c->stream->feed_opened = 1;
2613 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2617 static int http_receive_data(HTTPContext *c)
2620 int len, loop_run = 0;
2622 while (c->chunked_encoding && !c->chunk_size &&
2623 c->buffer_end > c->buffer_ptr) {
2624 /* read chunk header, if present */
2625 len = recv(c->fd, c->buffer_ptr, 1, 0);
2628 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2629 ff_neterrno() != FF_NETERROR(EINTR))
2630 /* error : close connection */
2632 } else if (len == 0) {
2633 /* end of connection : close it */
2635 } else if (c->buffer_ptr - c->buffer >= 2 &&
2636 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2637 c->chunk_size = strtol(c->buffer, 0, 16);
2638 if (c->chunk_size == 0) // end of stream
2640 c->buffer_ptr = c->buffer;
2642 } else if (++loop_run > 10) {
2643 /* no chunk header, abort */
2650 if (c->buffer_end > c->buffer_ptr) {
2651 len = recv(c->fd, c->buffer_ptr,
2652 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2654 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2655 ff_neterrno() != FF_NETERROR(EINTR))
2656 /* error : close connection */
2658 } else if (len == 0)
2659 /* end of connection : close it */
2662 c->chunk_size -= len;
2663 c->buffer_ptr += len;
2664 c->data_count += len;
2665 update_datarate(&c->datarate, c->data_count);
2669 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2670 if (c->buffer[0] != 'f' ||
2671 c->buffer[1] != 'm') {
2672 http_log("Feed stream has become desynchronized -- disconnecting\n");
2677 if (c->buffer_ptr >= c->buffer_end) {
2678 FFStream *feed = c->stream;
2679 /* a packet has been received : write it in the store, except
2681 if (c->data_count > FFM_PACKET_SIZE) {
2683 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
2684 /* XXX: use llseek or url_seek */
2685 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2686 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2687 http_log("Error writing to feed file: %s\n", strerror(errno));
2691 feed->feed_write_index += FFM_PACKET_SIZE;
2692 /* update file size */
2693 if (feed->feed_write_index > c->stream->feed_size)
2694 feed->feed_size = feed->feed_write_index;
2696 /* handle wrap around if max file size reached */
2697 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2698 feed->feed_write_index = FFM_PACKET_SIZE;
2701 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2702 http_log("Error writing index to feed file: %s\n", strerror(errno));
2706 /* wake up any waiting connections */
2707 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2708 if (c1->state == HTTPSTATE_WAIT_FEED &&
2709 c1->stream->feed == c->stream->feed)
2710 c1->state = HTTPSTATE_SEND_DATA;
2713 /* We have a header in our hands that contains useful data */
2714 AVFormatContext *s = NULL;
2716 AVInputFormat *fmt_in;
2719 /* use feed output format name to find corresponding input format */
2720 fmt_in = av_find_input_format(feed->fmt->name);
2724 url_open_buf(&pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
2725 pb->is_streamed = 1;
2727 if (av_open_input_stream(&s, pb, c->stream->feed_filename, fmt_in, NULL) < 0) {
2732 /* Now we have the actual streams */
2733 if (s->nb_streams != feed->nb_streams) {
2734 av_close_input_stream(s);
2736 http_log("Feed '%s' stream number does not match registered feed\n",
2737 c->stream->feed_filename);
2741 for (i = 0; i < s->nb_streams; i++) {
2742 AVStream *fst = feed->streams[i];
2743 AVStream *st = s->streams[i];
2744 memcpy(fst->codec, st->codec, sizeof(AVCodecContext));
2745 if (fst->codec->extradata_size) {
2746 fst->codec->extradata = av_malloc(fst->codec->extradata_size);
2747 if (!fst->codec->extradata)
2749 memcpy(fst->codec->extradata, st->codec->extradata,
2750 fst->codec->extradata_size);
2754 av_close_input_stream(s);
2757 c->buffer_ptr = c->buffer;
2762 c->stream->feed_opened = 0;
2764 /* wake up any waiting connections to stop waiting for feed */
2765 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2766 if (c1->state == HTTPSTATE_WAIT_FEED &&
2767 c1->stream->feed == c->stream->feed)
2768 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2773 /********************************************************************/
2776 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2783 switch(error_number) {
2784 case RTSP_STATUS_OK:
2787 case RTSP_STATUS_METHOD:
2788 str = "Method Not Allowed";
2790 case RTSP_STATUS_BANDWIDTH:
2791 str = "Not Enough Bandwidth";
2793 case RTSP_STATUS_SESSION:
2794 str = "Session Not Found";
2796 case RTSP_STATUS_STATE:
2797 str = "Method Not Valid in This State";
2799 case RTSP_STATUS_AGGREGATE:
2800 str = "Aggregate operation not allowed";
2802 case RTSP_STATUS_ONLY_AGGREGATE:
2803 str = "Only aggregate operation allowed";
2805 case RTSP_STATUS_TRANSPORT:
2806 str = "Unsupported transport";
2808 case RTSP_STATUS_INTERNAL:
2809 str = "Internal Server Error";
2811 case RTSP_STATUS_SERVICE:
2812 str = "Service Unavailable";
2814 case RTSP_STATUS_VERSION:
2815 str = "RTSP Version not supported";
2818 str = "Unknown Error";
2822 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2823 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2825 /* output GMT time */
2829 p = buf2 + strlen(p) - 1;
2832 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2835 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2837 rtsp_reply_header(c, error_number);
2838 url_fprintf(c->pb, "\r\n");
2841 static int rtsp_parse_request(HTTPContext *c)
2843 const char *p, *p1, *p2;
2849 RTSPMessageHeader header1, *header = &header1;
2851 c->buffer_ptr[0] = '\0';
2854 get_word(cmd, sizeof(cmd), &p);
2855 get_word(url, sizeof(url), &p);
2856 get_word(protocol, sizeof(protocol), &p);
2858 av_strlcpy(c->method, cmd, sizeof(c->method));
2859 av_strlcpy(c->url, url, sizeof(c->url));
2860 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2862 if (url_open_dyn_buf(&c->pb) < 0) {
2863 /* XXX: cannot do more */
2864 c->pb = NULL; /* safety */
2868 /* check version name */
2869 if (strcmp(protocol, "RTSP/1.0") != 0) {
2870 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2874 /* parse each header line */
2875 memset(header, 0, sizeof(*header));
2876 /* skip to next line */
2877 while (*p != '\n' && *p != '\0')
2881 while (*p != '\0') {
2882 p1 = strchr(p, '\n');
2886 if (p2 > p && p2[-1] == '\r')
2888 /* skip empty line */
2892 if (len > sizeof(line) - 1)
2893 len = sizeof(line) - 1;
2894 memcpy(line, p, len);
2896 ff_rtsp_parse_line(header, line, NULL);
2900 /* handle sequence number */
2901 c->seq = header->seq;
2903 if (!strcmp(cmd, "DESCRIBE"))
2904 rtsp_cmd_describe(c, url);
2905 else if (!strcmp(cmd, "OPTIONS"))
2906 rtsp_cmd_options(c, url);
2907 else if (!strcmp(cmd, "SETUP"))
2908 rtsp_cmd_setup(c, url, header);
2909 else if (!strcmp(cmd, "PLAY"))
2910 rtsp_cmd_play(c, url, header);
2911 else if (!strcmp(cmd, "PAUSE"))
2912 rtsp_cmd_pause(c, url, header);
2913 else if (!strcmp(cmd, "TEARDOWN"))
2914 rtsp_cmd_teardown(c, url, header);
2916 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2919 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2920 c->pb = NULL; /* safety */
2922 /* XXX: cannot do more */
2925 c->buffer_ptr = c->pb_buffer;
2926 c->buffer_end = c->pb_buffer + len;
2927 c->state = RTSPSTATE_SEND_REPLY;
2931 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2932 struct in_addr my_ip)
2934 AVFormatContext *avc;
2935 AVStream avs[MAX_STREAMS];
2938 avc = avformat_alloc_context();
2942 av_metadata_set(&avc->metadata, "title",
2943 stream->title[0] ? stream->title : "No Title");
2944 avc->nb_streams = stream->nb_streams;
2945 if (stream->is_multicast) {
2946 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2947 inet_ntoa(stream->multicast_ip),
2948 stream->multicast_port, stream->multicast_ttl);
2951 for(i = 0; i < stream->nb_streams; i++) {
2952 avc->streams[i] = &avs[i];
2953 avc->streams[i]->codec = stream->streams[i]->codec;
2955 *pbuffer = av_mallocz(2048);
2956 avf_sdp_create(&avc, 1, *pbuffer, 2048);
2959 return strlen(*pbuffer);
2962 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2964 // rtsp_reply_header(c, RTSP_STATUS_OK);
2965 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2966 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2967 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2968 url_fprintf(c->pb, "\r\n");
2971 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2977 int content_length, len;
2978 struct sockaddr_in my_addr;
2980 /* find which url is asked */
2981 ff_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2986 for(stream = first_stream; stream != NULL; stream = stream->next) {
2987 if (!stream->is_feed &&
2988 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2989 !strcmp(path, stream->filename)) {
2993 /* no stream found */
2994 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2998 /* prepare the media description in sdp format */
3000 /* get the host IP */
3001 len = sizeof(my_addr);
3002 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3003 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3004 if (content_length < 0) {
3005 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3008 rtsp_reply_header(c, RTSP_STATUS_OK);
3009 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
3010 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
3011 url_fprintf(c->pb, "\r\n");
3012 put_buffer(c->pb, content, content_length);
3015 static HTTPContext *find_rtp_session(const char *session_id)
3019 if (session_id[0] == '\0')
3022 for(c = first_http_ctx; c != NULL; c = c->next) {
3023 if (!strcmp(c->session_id, session_id))
3029 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3031 RTSPTransportField *th;
3034 for(i=0;i<h->nb_transports;i++) {
3035 th = &h->transports[i];
3036 if (th->lower_transport == lower_transport)
3042 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3043 RTSPMessageHeader *h)
3046 int stream_index, rtp_port, rtcp_port;
3051 RTSPTransportField *th;
3052 struct sockaddr_in dest_addr;
3053 RTSPActionServerSetup setup;
3055 /* find which url is asked */
3056 ff_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3061 /* now check each stream */
3062 for(stream = first_stream; stream != NULL; stream = stream->next) {
3063 if (!stream->is_feed &&
3064 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3065 /* accept aggregate filenames only if single stream */
3066 if (!strcmp(path, stream->filename)) {
3067 if (stream->nb_streams != 1) {
3068 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3075 for(stream_index = 0; stream_index < stream->nb_streams;
3077 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3078 stream->filename, stream_index);
3079 if (!strcmp(path, buf))
3084 /* no stream found */
3085 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3089 /* generate session id if needed */
3090 if (h->session_id[0] == '\0')
3091 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3092 av_lfg_get(&random_state), av_lfg_get(&random_state));
3094 /* find rtp session, and create it if none found */
3095 rtp_c = find_rtp_session(h->session_id);
3097 /* always prefer UDP */
3098 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3100 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3102 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3107 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3108 th->lower_transport);
3110 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3114 /* open input stream */
3115 if (open_input_stream(rtp_c, "") < 0) {
3116 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3121 /* test if stream is OK (test needed because several SETUP needs
3122 to be done for a given file) */
3123 if (rtp_c->stream != stream) {
3124 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3128 /* test if stream is already set up */
3129 if (rtp_c->rtp_ctx[stream_index]) {
3130 rtsp_reply_error(c, RTSP_STATUS_STATE);
3134 /* check transport */
3135 th = find_transport(h, rtp_c->rtp_protocol);
3136 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3137 th->client_port_min <= 0)) {
3138 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3142 /* setup default options */
3143 setup.transport_option[0] = '\0';
3144 dest_addr = rtp_c->from_addr;
3145 dest_addr.sin_port = htons(th->client_port_min);
3148 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3149 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3153 /* now everything is OK, so we can send the connection parameters */
3154 rtsp_reply_header(c, RTSP_STATUS_OK);
3156 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3158 switch(rtp_c->rtp_protocol) {
3159 case RTSP_LOWER_TRANSPORT_UDP:
3160 rtp_port = rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3161 rtcp_port = rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3162 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3163 "client_port=%d-%d;server_port=%d-%d",
3164 th->client_port_min, th->client_port_max,
3165 rtp_port, rtcp_port);
3167 case RTSP_LOWER_TRANSPORT_TCP:
3168 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3169 stream_index * 2, stream_index * 2 + 1);
3174 if (setup.transport_option[0] != '\0')
3175 url_fprintf(c->pb, ";%s", setup.transport_option);
3176 url_fprintf(c->pb, "\r\n");
3179 url_fprintf(c->pb, "\r\n");
3183 /* find an rtp connection by using the session ID. Check consistency
3185 static HTTPContext *find_rtp_session_with_url(const char *url,
3186 const char *session_id)
3194 rtp_c = find_rtp_session(session_id);
3198 /* find which url is asked */
3199 ff_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3203 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3204 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3205 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3206 rtp_c->stream->filename, s);
3207 if(!strncmp(path, buf, sizeof(buf))) {
3208 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3215 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3219 rtp_c = find_rtp_session_with_url(url, h->session_id);
3221 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3225 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3226 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3227 rtp_c->state != HTTPSTATE_READY) {
3228 rtsp_reply_error(c, RTSP_STATUS_STATE);
3232 rtp_c->state = HTTPSTATE_SEND_DATA;
3234 /* now everything is OK, so we can send the connection parameters */
3235 rtsp_reply_header(c, RTSP_STATUS_OK);
3237 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3238 url_fprintf(c->pb, "\r\n");
3241 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3245 rtp_c = find_rtp_session_with_url(url, h->session_id);
3247 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3251 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3252 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3253 rtsp_reply_error(c, RTSP_STATUS_STATE);
3257 rtp_c->state = HTTPSTATE_READY;
3258 rtp_c->first_pts = AV_NOPTS_VALUE;
3259 /* now everything is OK, so we can send the connection parameters */
3260 rtsp_reply_header(c, RTSP_STATUS_OK);
3262 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3263 url_fprintf(c->pb, "\r\n");
3266 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3269 char session_id[32];
3271 rtp_c = find_rtp_session_with_url(url, h->session_id);
3273 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3277 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
3279 /* abort the session */
3280 close_connection(rtp_c);
3282 /* now everything is OK, so we can send the connection parameters */
3283 rtsp_reply_header(c, RTSP_STATUS_OK);
3285 url_fprintf(c->pb, "Session: %s\r\n", session_id);
3286 url_fprintf(c->pb, "\r\n");
3290 /********************************************************************/
3293 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3294 FFStream *stream, const char *session_id,
3295 enum RTSPLowerTransport rtp_protocol)
3297 HTTPContext *c = NULL;
3298 const char *proto_str;
3300 /* XXX: should output a warning page when coming
3301 close to the connection limit */
3302 if (nb_connections >= nb_max_connections)
3305 /* add a new connection */
3306 c = av_mallocz(sizeof(HTTPContext));
3311 c->poll_entry = NULL;
3312 c->from_addr = *from_addr;
3313 c->buffer_size = IOBUFFER_INIT_SIZE;
3314 c->buffer = av_malloc(c->buffer_size);
3319 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3320 c->state = HTTPSTATE_READY;
3321 c->is_packetized = 1;
3322 c->rtp_protocol = rtp_protocol;
3324 /* protocol is shown in statistics */
3325 switch(c->rtp_protocol) {
3326 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3327 proto_str = "MCAST";
3329 case RTSP_LOWER_TRANSPORT_UDP:
3332 case RTSP_LOWER_TRANSPORT_TCP:
3339 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3340 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3342 current_bandwidth += stream->bandwidth;
3344 c->next = first_http_ctx;
3356 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3357 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3359 static int rtp_new_av_stream(HTTPContext *c,
3360 int stream_index, struct sockaddr_in *dest_addr,
3361 HTTPContext *rtsp_c)
3363 AVFormatContext *ctx;
3366 URLContext *h = NULL;
3368 int max_packet_size;
3370 /* now we can open the relevant output stream */
3371 ctx = avformat_alloc_context();
3374 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3376 st = av_mallocz(sizeof(AVStream));
3379 st->codec= avcodec_alloc_context();
3380 ctx->nb_streams = 1;
3381 ctx->streams[0] = st;
3383 if (!c->stream->feed ||
3384 c->stream->feed == c->stream)
3385 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3388 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3390 st->priv_data = NULL;
3392 /* build destination RTP address */
3393 ipaddr = inet_ntoa(dest_addr->sin_addr);
3395 switch(c->rtp_protocol) {
3396 case RTSP_LOWER_TRANSPORT_UDP:
3397 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3400 /* XXX: also pass as parameter to function ? */
3401 if (c->stream->is_multicast) {
3403 ttl = c->stream->multicast_ttl;
3406 snprintf(ctx->filename, sizeof(ctx->filename),
3407 "rtp://%s:%d?multicast=1&ttl=%d",
3408 ipaddr, ntohs(dest_addr->sin_port), ttl);
3410 snprintf(ctx->filename, sizeof(ctx->filename),
3411 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3414 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3416 c->rtp_handles[stream_index] = h;
3417 max_packet_size = url_get_max_packet_size(h);
3419 case RTSP_LOWER_TRANSPORT_TCP:
3422 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3428 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3429 ipaddr, ntohs(dest_addr->sin_port),
3430 c->stream->filename, stream_index, c->protocol);
3432 /* normally, no packets should be output here, but the packet size may be checked */
3433 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3434 /* XXX: close stream */
3437 av_set_parameters(ctx, NULL);
3438 if (av_write_header(ctx) < 0) {
3445 url_close_dyn_buf(ctx->pb, &dummy_buf);
3448 c->rtp_ctx[stream_index] = ctx;
3452 /********************************************************************/
3453 /* ffserver initialization */
3455 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec)
3459 fst = av_mallocz(sizeof(AVStream));
3462 fst->codec= avcodec_alloc_context();
3463 fst->priv_data = av_mallocz(sizeof(FeedData));
3464 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3465 fst->index = stream->nb_streams;
3466 av_set_pts_info(fst, 33, 1, 90000);
3467 stream->streams[stream->nb_streams++] = fst;
3471 /* return the stream number in the feed */
3472 static int add_av_stream(FFStream *feed, AVStream *st)
3475 AVCodecContext *av, *av1;
3479 for(i=0;i<feed->nb_streams;i++) {
3480 st = feed->streams[i];
3482 if (av1->codec_id == av->codec_id &&
3483 av1->codec_type == av->codec_type &&
3484 av1->bit_rate == av->bit_rate) {
3486 switch(av->codec_type) {
3487 case AVMEDIA_TYPE_AUDIO:
3488 if (av1->channels == av->channels &&
3489 av1->sample_rate == av->sample_rate)
3492 case AVMEDIA_TYPE_VIDEO:
3493 if (av1->width == av->width &&
3494 av1->height == av->height &&
3495 av1->time_base.den == av->time_base.den &&
3496 av1->time_base.num == av->time_base.num &&
3497 av1->gop_size == av->gop_size)
3506 fst = add_av_stream1(feed, av);
3509 return feed->nb_streams - 1;
3514 static void remove_stream(FFStream *stream)
3518 while (*ps != NULL) {
3526 /* specific mpeg4 handling : we extract the raw parameters */
3527 static void extract_mpeg4_header(AVFormatContext *infile)
3529 int mpeg4_count, i, size;
3535 for(i=0;i<infile->nb_streams;i++) {
3536 st = infile->streams[i];
3537 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3538 st->codec->extradata_size == 0) {
3545 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3546 while (mpeg4_count > 0) {
3547 if (av_read_packet(infile, &pkt) < 0)
3549 st = infile->streams[pkt.stream_index];
3550 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3551 st->codec->extradata_size == 0) {
3552 av_freep(&st->codec->extradata);
3553 /* fill extradata with the header */
3554 /* XXX: we make hard suppositions here ! */
3556 while (p < pkt.data + pkt.size - 4) {
3557 /* stop when vop header is found */
3558 if (p[0] == 0x00 && p[1] == 0x00 &&
3559 p[2] == 0x01 && p[3] == 0xb6) {
3560 size = p - pkt.data;
3561 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3562 st->codec->extradata = av_malloc(size);
3563 st->codec->extradata_size = size;
3564 memcpy(st->codec->extradata, pkt.data, size);
3571 av_free_packet(&pkt);
3575 /* compute the needed AVStream for each file */
3576 static void build_file_streams(void)
3578 FFStream *stream, *stream_next;
3579 AVFormatContext *infile;
3582 /* gather all streams */
3583 for(stream = first_stream; stream != NULL; stream = stream_next) {
3584 stream_next = stream->next;
3585 if (stream->stream_type == STREAM_TYPE_LIVE &&
3587 /* the stream comes from a file */
3588 /* try to open the file */
3590 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
3591 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3592 /* specific case : if transport stream output to RTP,
3593 we use a raw transport stream reader */
3594 stream->ap_in->mpeg2ts_raw = 1;
3595 stream->ap_in->mpeg2ts_compute_pcr = 1;
3598 http_log("Opening file '%s'\n", stream->feed_filename);
3599 if ((ret = av_open_input_file(&infile, stream->feed_filename,
3600 stream->ifmt, 0, stream->ap_in)) < 0) {
3601 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3602 /* remove stream (no need to spend more time on it) */
3604 remove_stream(stream);
3606 /* find all the AVStreams inside and reference them in
3608 if (av_find_stream_info(infile) < 0) {
3609 http_log("Could not find codec parameters from '%s'\n",
3610 stream->feed_filename);
3611 av_close_input_file(infile);
3614 extract_mpeg4_header(infile);
3616 for(i=0;i<infile->nb_streams;i++)
3617 add_av_stream1(stream, infile->streams[i]->codec);
3619 av_close_input_file(infile);
3625 /* compute the needed AVStream for each feed */
3626 static void build_feed_streams(void)
3628 FFStream *stream, *feed;
3631 /* gather all streams */
3632 for(stream = first_stream; stream != NULL; stream = stream->next) {
3633 feed = stream->feed;
3635 if (!stream->is_feed) {
3636 /* we handle a stream coming from a feed */
3637 for(i=0;i<stream->nb_streams;i++)
3638 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3643 /* gather all streams */
3644 for(stream = first_stream; stream != NULL; stream = stream->next) {
3645 feed = stream->feed;
3647 if (stream->is_feed) {
3648 for(i=0;i<stream->nb_streams;i++)
3649 stream->feed_streams[i] = i;
3654 /* create feed files if needed */
3655 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3658 if (url_exist(feed->feed_filename)) {
3659 /* See if it matches */
3663 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3664 /* Now see if it matches */
3665 if (s->nb_streams == feed->nb_streams) {
3667 for(i=0;i<s->nb_streams;i++) {
3669 sf = feed->streams[i];
3672 if (sf->index != ss->index ||
3674 http_log("Index & Id do not match for stream %d (%s)\n",
3675 i, feed->feed_filename);