2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multiple format streaming server based on the FFmpeg libraries
28 #define closesocket close
33 #include "libavformat/avformat.h"
34 // FIXME those are internal headers, ffserver _really_ shouldn't use them
35 #include "libavformat/ffm.h"
36 #include "libavformat/network.h"
37 #include "libavformat/os_support.h"
38 #include "libavformat/rtpdec.h"
39 #include "libavformat/rtpproto.h"
40 #include "libavformat/rtsp.h"
41 #include "libavformat/avio_internal.h"
42 #include "libavformat/internal.h"
43 #include "libavformat/url.h"
45 #include "libavutil/avassert.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/lfg.h"
48 #include "libavutil/dict.h"
49 #include "libavutil/intreadwrite.h"
50 #include "libavutil/mathematics.h"
51 #include "libavutil/pixdesc.h"
52 #include "libavutil/random_seed.h"
53 #include "libavutil/parseutils.h"
54 #include "libavutil/opt.h"
55 #include "libavutil/time.h"
60 #include <sys/ioctl.h>
71 const char program_name[] = "ffserver";
72 const int program_birth_year = 2000;
74 static const OptionDef options[];
77 HTTPSTATE_WAIT_REQUEST,
78 HTTPSTATE_SEND_HEADER,
79 HTTPSTATE_SEND_DATA_HEADER,
80 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
81 HTTPSTATE_SEND_DATA_TRAILER,
82 HTTPSTATE_RECEIVE_DATA,
83 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
86 RTSPSTATE_WAIT_REQUEST,
88 RTSPSTATE_SEND_PACKET,
91 static const char *http_state[] = {
107 #define MAX_STREAMS 20
109 #define IOBUFFER_INIT_SIZE 8192
111 /* timeouts are in ms */
112 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
113 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
115 #define SYNC_TIMEOUT (10 * 1000)
117 typedef struct RTSPActionServerSetup {
119 char transport_option[512];
120 } RTSPActionServerSetup;
123 int64_t count1, count2;
124 int64_t time1, time2;
127 /* context associated with one connection */
128 typedef struct HTTPContext {
129 enum HTTPState state;
130 int fd; /* socket file descriptor */
131 struct sockaddr_in from_addr; /* origin */
132 struct pollfd *poll_entry; /* used when polling */
134 uint8_t *buffer_ptr, *buffer_end;
137 int chunked_encoding;
138 int chunk_size; /* 0 if it needs to be read */
139 struct HTTPContext *next;
140 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
144 /* input format handling */
145 AVFormatContext *fmt_in;
146 int64_t start_time; /* In milliseconds - this wraps fairly often */
147 int64_t first_pts; /* initial pts value */
148 int64_t cur_pts; /* current pts value from the stream in us */
149 int64_t cur_frame_duration; /* duration of the current frame in us */
150 int cur_frame_bytes; /* output frame size, needed to compute
151 the time at which we send each
153 int pts_stream_index; /* stream we choose as clock reference */
154 int64_t cur_clock; /* current clock reference value in us */
155 /* output format handling */
156 struct FFStream *stream;
157 /* -1 is invalid stream */
158 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
159 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
161 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
162 int last_packet_sent; /* true if last data packet was sent */
164 DataRateData datarate;
171 int is_packetized; /* if true, the stream is packetized */
172 int packet_stream_index; /* current stream for output in state machine */
174 /* RTSP state specific */
175 uint8_t *pb_buffer; /* XXX: use that in all the code */
177 int seq; /* RTSP sequence number */
179 /* RTP state specific */
180 enum RTSPLowerTransport rtp_protocol;
181 char session_id[32]; /* session id */
182 AVFormatContext *rtp_ctx[MAX_STREAMS];
184 /* RTP/UDP specific */
185 URLContext *rtp_handles[MAX_STREAMS];
187 /* RTP/TCP specific */
188 struct HTTPContext *rtsp_c;
189 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
192 /* each generated stream is described here */
196 STREAM_TYPE_REDIRECT,
199 enum IPAddressAction {
204 typedef struct IPAddressACL {
205 struct IPAddressACL *next;
206 enum IPAddressAction action;
207 /* These are in host order */
208 struct in_addr first;
212 /* description of each stream of the ffserver.conf file */
213 typedef struct FFStream {
214 enum StreamType stream_type;
215 char filename[1024]; /* stream filename */
216 struct FFStream *feed; /* feed we are using (can be null if
218 AVDictionary *in_opts; /* input parameters */
219 AVDictionary *metadata; /* metadata to set on the stream */
220 AVInputFormat *ifmt; /* if non NULL, force input format */
223 char dynamic_acl[1024];
225 int prebuffer; /* Number of millseconds early to start */
226 int64_t max_time; /* Number of milliseconds to run */
228 AVStream *streams[MAX_STREAMS];
229 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
230 char feed_filename[1024]; /* file name of the feed storage, or
231 input file name for a stream */
232 pid_t pid; /* Of ffmpeg process */
233 time_t pid_start; /* Of ffmpeg process */
235 struct FFStream *next;
236 unsigned bandwidth; /* bandwidth, in kbits/s */
239 /* multicast specific */
241 struct in_addr multicast_ip;
242 int multicast_port; /* first port used for multicast */
244 int loop; /* if true, send the stream in loops (only meaningful if file) */
247 int feed_opened; /* true if someone is writing to the feed */
248 int is_feed; /* true if it is a feed */
249 int readonly; /* True if writing is prohibited to the file */
250 int truncate; /* True if feeder connection truncate the feed file */
252 int64_t bytes_served;
253 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
254 int64_t feed_write_index; /* current write position in feed (it wraps around) */
255 int64_t feed_size; /* current size of feed */
256 struct FFStream *next_feed;
259 typedef struct FeedData {
260 long long data_count;
261 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
264 static struct sockaddr_in my_http_addr;
265 static struct sockaddr_in my_rtsp_addr;
267 static char logfilename[1024];
268 static HTTPContext *first_http_ctx;
269 static FFStream *first_feed; /* contains only feeds */
270 static FFStream *first_stream; /* contains all streams, including feeds */
272 static void new_connection(int server_fd, int is_rtsp);
273 static void close_connection(HTTPContext *c);
276 static int handle_connection(HTTPContext *c);
277 static int http_parse_request(HTTPContext *c);
278 static int http_send_data(HTTPContext *c);
279 static void compute_status(HTTPContext *c);
280 static int open_input_stream(HTTPContext *c, const char *info);
281 static int http_start_receive_data(HTTPContext *c);
282 static int http_receive_data(HTTPContext *c);
285 static int rtsp_parse_request(HTTPContext *c);
286 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
287 static void rtsp_cmd_options(HTTPContext *c, const char *url);
288 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
289 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
290 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
291 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
294 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
295 struct in_addr my_ip);
298 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
299 FFStream *stream, const char *session_id,
300 enum RTSPLowerTransport rtp_protocol);
301 static int rtp_new_av_stream(HTTPContext *c,
302 int stream_index, struct sockaddr_in *dest_addr,
303 HTTPContext *rtsp_c);
305 static const char *my_program_name;
307 static const char *config_filename;
309 static int ffserver_debug;
310 static int no_launch;
311 static int need_to_start_children;
313 /* maximum number of simultaneous HTTP connections */
314 static unsigned int nb_max_http_connections = 2000;
315 static unsigned int nb_max_connections = 5;
316 static unsigned int nb_connections;
318 static uint64_t max_bandwidth = 1000;
319 static uint64_t current_bandwidth;
321 static int64_t cur_time; // Making this global saves on passing it around everywhere
323 static AVLFG random_state;
325 static FILE *logfile = NULL;
327 static void htmlstrip(char *s) {
329 s += strspn(s, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,. ");
335 static int64_t ffm_read_write_index(int fd)
339 if (lseek(fd, 8, SEEK_SET) < 0)
341 if (read(fd, buf, 8) != 8)
346 static int ffm_write_write_index(int fd, int64_t pos)
352 buf[i] = (pos >> (56 - i * 8)) & 0xff;
353 if (lseek(fd, 8, SEEK_SET) < 0)
355 if (write(fd, buf, 8) != 8)
360 static void ffm_set_write_index(AVFormatContext *s, int64_t pos,
363 FFMContext *ffm = s->priv_data;
364 ffm->write_index = pos;
365 ffm->file_size = file_size;
368 /* FIXME: make ffserver work with IPv6 */
369 /* resolve host with also IP address parsing */
370 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
373 if (!ff_inet_aton(hostname, sin_addr)) {
375 struct addrinfo *ai, *cur;
376 struct addrinfo hints = { 0 };
377 hints.ai_family = AF_INET;
378 if (getaddrinfo(hostname, NULL, &hints, &ai))
380 /* getaddrinfo returns a linked list of addrinfo structs.
381 * Even if we set ai_family = AF_INET above, make sure
382 * that the returned one actually is of the correct type. */
383 for (cur = ai; cur; cur = cur->ai_next) {
384 if (cur->ai_family == AF_INET) {
385 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
394 hp = gethostbyname(hostname);
397 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
403 static char *ctime1(char *buf2, int buf_size)
410 av_strlcpy(buf2, p, buf_size);
411 p = buf2 + strlen(p) - 1;
417 static void http_vlog(const char *fmt, va_list vargs)
419 static int print_prefix = 1;
423 ctime1(buf, sizeof(buf));
424 fprintf(logfile, "%s ", buf);
426 print_prefix = strstr(fmt, "\n") != NULL;
427 vfprintf(logfile, fmt, vargs);
433 __attribute__ ((format (printf, 1, 2)))
435 static void http_log(const char *fmt, ...)
438 va_start(vargs, fmt);
439 http_vlog(fmt, vargs);
443 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
445 static int print_prefix = 1;
446 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
447 if (level > av_log_get_level())
449 if (print_prefix && avc)
450 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
451 print_prefix = strstr(fmt, "\n") != NULL;
452 http_vlog(fmt, vargs);
455 static void log_connection(HTTPContext *c)
460 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
461 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
462 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
465 static void update_datarate(DataRateData *drd, int64_t count)
467 if (!drd->time1 && !drd->count1) {
468 drd->time1 = drd->time2 = cur_time;
469 drd->count1 = drd->count2 = count;
470 } else if (cur_time - drd->time2 > 5000) {
471 drd->time1 = drd->time2;
472 drd->count1 = drd->count2;
473 drd->time2 = cur_time;
478 /* In bytes per second */
479 static int compute_datarate(DataRateData *drd, int64_t count)
481 if (cur_time == drd->time1)
484 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
488 static void start_children(FFStream *feed)
493 for (; feed; feed = feed->next) {
494 if (feed->child_argv && !feed->pid) {
495 feed->pid_start = time(0);
500 http_log("Unable to create children\n");
509 /* replace "ffserver" with "ffmpeg" in the path of current program,
510 * ignore user provided path */
511 av_strlcpy(pathname, my_program_name, sizeof(pathname));
512 slash = strrchr(pathname, '/');
517 strcpy(slash, "ffmpeg");
519 http_log("Launch command line: ");
520 http_log("%s ", pathname);
521 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
522 http_log("%s ", feed->child_argv[i]);
525 for (i = 3; i < 256; i++)
528 if (!ffserver_debug) {
529 if (!freopen("/dev/null", "r", stdin))
530 http_log("failed to redirect STDIN to /dev/null\n;");
531 if (!freopen("/dev/null", "w", stdout))
532 http_log("failed to redirect STDOUT to /dev/null\n;");
533 if (!freopen("/dev/null", "w", stderr))
534 http_log("failed to redirect STDERR to /dev/null\n;");
537 signal(SIGPIPE, SIG_DFL);
539 execvp(pathname, feed->child_argv);
547 /* open a listening socket */
548 static int socket_open_listen(struct sockaddr_in *my_addr)
552 server_fd = socket(AF_INET,SOCK_STREAM,0);
559 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
561 my_addr->sin_family = AF_INET;
562 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
564 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
566 closesocket(server_fd);
570 if (listen (server_fd, 5) < 0) {
572 closesocket(server_fd);
575 ff_socket_nonblock(server_fd, 1);
580 /* start all multicast streams */
581 static void start_multicast(void)
586 struct sockaddr_in dest_addr = {0};
587 int default_port, stream_index;
590 for(stream = first_stream; stream != NULL; stream = stream->next) {
591 if (stream->is_multicast) {
592 unsigned random0 = av_lfg_get(&random_state);
593 unsigned random1 = av_lfg_get(&random_state);
594 /* open the RTP connection */
595 snprintf(session_id, sizeof(session_id), "%08x%08x",
598 /* choose a port if none given */
599 if (stream->multicast_port == 0) {
600 stream->multicast_port = default_port;
604 dest_addr.sin_family = AF_INET;
605 dest_addr.sin_addr = stream->multicast_ip;
606 dest_addr.sin_port = htons(stream->multicast_port);
608 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
609 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
613 if (open_input_stream(rtp_c, "") < 0) {
614 http_log("Could not open input stream for stream '%s'\n",
619 /* open each RTP stream */
620 for(stream_index = 0; stream_index < stream->nb_streams;
622 dest_addr.sin_port = htons(stream->multicast_port +
624 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
625 http_log("Could not open output stream '%s/streamid=%d'\n",
626 stream->filename, stream_index);
631 /* change state to send data */
632 rtp_c->state = HTTPSTATE_SEND_DATA;
637 /* main loop of the http server */
638 static int http_server(void)
640 int server_fd = 0, rtsp_server_fd = 0;
641 int ret, delay, delay1;
642 struct pollfd *poll_table, *poll_entry;
643 HTTPContext *c, *c_next;
645 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
646 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
650 if (my_http_addr.sin_port) {
651 server_fd = socket_open_listen(&my_http_addr);
656 if (my_rtsp_addr.sin_port) {
657 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
658 if (rtsp_server_fd < 0)
662 if (!rtsp_server_fd && !server_fd) {
663 http_log("HTTP and RTSP disabled.\n");
667 http_log("FFserver started.\n");
669 start_children(first_feed);
674 poll_entry = poll_table;
676 poll_entry->fd = server_fd;
677 poll_entry->events = POLLIN;
680 if (rtsp_server_fd) {
681 poll_entry->fd = rtsp_server_fd;
682 poll_entry->events = POLLIN;
686 /* wait for events on each HTTP handle */
693 case HTTPSTATE_SEND_HEADER:
694 case RTSPSTATE_SEND_REPLY:
695 case RTSPSTATE_SEND_PACKET:
696 c->poll_entry = poll_entry;
698 poll_entry->events = POLLOUT;
701 case HTTPSTATE_SEND_DATA_HEADER:
702 case HTTPSTATE_SEND_DATA:
703 case HTTPSTATE_SEND_DATA_TRAILER:
704 if (!c->is_packetized) {
705 /* for TCP, we output as much as we can (may need to put a limit) */
706 c->poll_entry = poll_entry;
708 poll_entry->events = POLLOUT;
711 /* when ffserver is doing the timing, we work by
712 looking at which packet need to be sent every
714 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
719 case HTTPSTATE_WAIT_REQUEST:
720 case HTTPSTATE_RECEIVE_DATA:
721 case HTTPSTATE_WAIT_FEED:
722 case RTSPSTATE_WAIT_REQUEST:
723 /* need to catch errors */
724 c->poll_entry = poll_entry;
726 poll_entry->events = POLLIN;/* Maybe this will work */
730 c->poll_entry = NULL;
736 /* wait for an event on one connection. We poll at least every
737 second to handle timeouts */
739 ret = poll(poll_table, poll_entry - poll_table, delay);
740 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
741 ff_neterrno() != AVERROR(EINTR))
745 cur_time = av_gettime() / 1000;
747 if (need_to_start_children) {
748 need_to_start_children = 0;
749 start_children(first_feed);
752 /* now handle the events */
753 for(c = first_http_ctx; c != NULL; c = c_next) {
755 if (handle_connection(c) < 0) {
756 /* close and free the connection */
762 poll_entry = poll_table;
764 /* new HTTP connection request ? */
765 if (poll_entry->revents & POLLIN)
766 new_connection(server_fd, 0);
769 if (rtsp_server_fd) {
770 /* new RTSP connection request ? */
771 if (poll_entry->revents & POLLIN)
772 new_connection(rtsp_server_fd, 1);
777 /* start waiting for a new HTTP/RTSP request */
778 static void start_wait_request(HTTPContext *c, int is_rtsp)
780 c->buffer_ptr = c->buffer;
781 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
784 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
785 c->state = RTSPSTATE_WAIT_REQUEST;
787 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
788 c->state = HTTPSTATE_WAIT_REQUEST;
792 static void http_send_too_busy_reply(int fd)
795 int len = snprintf(buffer, sizeof(buffer),
796 "HTTP/1.0 503 Server too busy\r\n"
797 "Content-type: text/html\r\n"
799 "<html><head><title>Too busy</title></head><body>\r\n"
800 "<p>The server is too busy to serve your request at this time.</p>\r\n"
801 "<p>The number of current connections is %u, and this exceeds the limit of %u.</p>\r\n"
802 "</body></html>\r\n",
803 nb_connections, nb_max_connections);
804 av_assert0(len < sizeof(buffer));
805 send(fd, buffer, len, 0);
809 static void new_connection(int server_fd, int is_rtsp)
811 struct sockaddr_in from_addr;
814 HTTPContext *c = NULL;
816 len = sizeof(from_addr);
817 fd = accept(server_fd, (struct sockaddr *)&from_addr,
820 http_log("error during accept %s\n", strerror(errno));
823 ff_socket_nonblock(fd, 1);
825 if (nb_connections >= nb_max_connections) {
826 http_send_too_busy_reply(fd);
830 /* add a new connection */
831 c = av_mallocz(sizeof(HTTPContext));
836 c->poll_entry = NULL;
837 c->from_addr = from_addr;
838 c->buffer_size = IOBUFFER_INIT_SIZE;
839 c->buffer = av_malloc(c->buffer_size);
843 c->next = first_http_ctx;
847 start_wait_request(c, is_rtsp);
859 static void close_connection(HTTPContext *c)
861 HTTPContext **cp, *c1;
863 AVFormatContext *ctx;
867 /* remove connection from list */
868 cp = &first_http_ctx;
869 while ((*cp) != NULL) {
877 /* remove references, if any (XXX: do it faster) */
878 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
883 /* remove connection associated resources */
887 /* close each frame parser */
888 for(i=0;i<c->fmt_in->nb_streams;i++) {
889 st = c->fmt_in->streams[i];
890 if (st->codec->codec)
891 avcodec_close(st->codec);
893 avformat_close_input(&c->fmt_in);
896 /* free RTP output streams if any */
899 nb_streams = c->stream->nb_streams;
901 for(i=0;i<nb_streams;i++) {
904 av_write_trailer(ctx);
905 av_dict_free(&ctx->metadata);
906 av_free(ctx->streams[0]);
909 h = c->rtp_handles[i];
916 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
919 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
920 av_write_trailer(ctx);
921 av_freep(&c->pb_buffer);
922 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
927 for(i=0; i<ctx->nb_streams; i++)
928 av_free(ctx->streams[i]);
929 av_freep(&ctx->streams);
930 av_freep(&ctx->priv_data);
932 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
933 current_bandwidth -= c->stream->bandwidth;
935 /* signal that there is no feed if we are the feeder socket */
936 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
937 c->stream->feed_opened = 0;
941 av_freep(&c->pb_buffer);
942 av_freep(&c->packet_buffer);
948 static int handle_connection(HTTPContext *c)
953 case HTTPSTATE_WAIT_REQUEST:
954 case RTSPSTATE_WAIT_REQUEST:
956 if ((c->timeout - cur_time) < 0)
958 if (c->poll_entry->revents & (POLLERR | POLLHUP))
961 /* no need to read if no events */
962 if (!(c->poll_entry->revents & POLLIN))
966 len = recv(c->fd, c->buffer_ptr, 1, 0);
968 if (ff_neterrno() != AVERROR(EAGAIN) &&
969 ff_neterrno() != AVERROR(EINTR))
971 } else if (len == 0) {
974 /* search for end of request. */
976 c->buffer_ptr += len;
978 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
979 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
980 /* request found : parse it and reply */
981 if (c->state == HTTPSTATE_WAIT_REQUEST) {
982 ret = http_parse_request(c);
984 ret = rtsp_parse_request(c);
988 } else if (ptr >= c->buffer_end) {
989 /* request too long: cannot do anything */
991 } else goto read_loop;
995 case HTTPSTATE_SEND_HEADER:
996 if (c->poll_entry->revents & (POLLERR | POLLHUP))
999 /* no need to write if no events */
1000 if (!(c->poll_entry->revents & POLLOUT))
1002 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1004 if (ff_neterrno() != AVERROR(EAGAIN) &&
1005 ff_neterrno() != AVERROR(EINTR)) {
1006 /* error : close connection */
1007 av_freep(&c->pb_buffer);
1011 c->buffer_ptr += len;
1013 c->stream->bytes_served += len;
1014 c->data_count += len;
1015 if (c->buffer_ptr >= c->buffer_end) {
1016 av_freep(&c->pb_buffer);
1017 /* if error, exit */
1020 /* all the buffer was sent : synchronize to the incoming stream */
1021 c->state = HTTPSTATE_SEND_DATA_HEADER;
1022 c->buffer_ptr = c->buffer_end = c->buffer;
1027 case HTTPSTATE_SEND_DATA:
1028 case HTTPSTATE_SEND_DATA_HEADER:
1029 case HTTPSTATE_SEND_DATA_TRAILER:
1030 /* for packetized output, we consider we can always write (the
1031 input streams sets the speed). It may be better to verify
1032 that we do not rely too much on the kernel queues */
1033 if (!c->is_packetized) {
1034 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1037 /* no need to read if no events */
1038 if (!(c->poll_entry->revents & POLLOUT))
1041 if (http_send_data(c) < 0)
1043 /* close connection if trailer sent */
1044 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1047 case HTTPSTATE_RECEIVE_DATA:
1048 /* no need to read if no events */
1049 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1051 if (!(c->poll_entry->revents & POLLIN))
1053 if (http_receive_data(c) < 0)
1056 case HTTPSTATE_WAIT_FEED:
1057 /* no need to read if no events */
1058 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1061 /* nothing to do, we'll be waken up by incoming feed packets */
1064 case RTSPSTATE_SEND_REPLY:
1065 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1066 av_freep(&c->pb_buffer);
1069 /* no need to write if no events */
1070 if (!(c->poll_entry->revents & POLLOUT))
1072 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1074 if (ff_neterrno() != AVERROR(EAGAIN) &&
1075 ff_neterrno() != AVERROR(EINTR)) {
1076 /* error : close connection */
1077 av_freep(&c->pb_buffer);
1081 c->buffer_ptr += len;
1082 c->data_count += len;
1083 if (c->buffer_ptr >= c->buffer_end) {
1084 /* all the buffer was sent : wait for a new request */
1085 av_freep(&c->pb_buffer);
1086 start_wait_request(c, 1);
1090 case RTSPSTATE_SEND_PACKET:
1091 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1092 av_freep(&c->packet_buffer);
1095 /* no need to write if no events */
1096 if (!(c->poll_entry->revents & POLLOUT))
1098 len = send(c->fd, c->packet_buffer_ptr,
1099 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1101 if (ff_neterrno() != AVERROR(EAGAIN) &&
1102 ff_neterrno() != AVERROR(EINTR)) {
1103 /* error : close connection */
1104 av_freep(&c->packet_buffer);
1108 c->packet_buffer_ptr += len;
1109 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1110 /* all the buffer was sent : wait for a new request */
1111 av_freep(&c->packet_buffer);
1112 c->state = RTSPSTATE_WAIT_REQUEST;
1116 case HTTPSTATE_READY:
1125 static int extract_rates(char *rates, int ratelen, const char *request)
1129 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1130 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1131 const char *q = p + 7;
1133 while (*q && *q != '\n' && av_isspace(*q))
1136 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1142 memset(rates, 0xff, ratelen);
1145 while (*q && *q != '\n' && *q != ':')
1148 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1152 if (stream_no < ratelen && stream_no >= 0)
1153 rates[stream_no] = rate_no;
1155 while (*q && *q != '\n' && !av_isspace(*q))
1162 p = strchr(p, '\n');
1172 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1175 int best_bitrate = 100000000;
1178 for (i = 0; i < feed->nb_streams; i++) {
1179 AVCodecContext *feed_codec = feed->streams[i]->codec;
1181 if (feed_codec->codec_id != codec->codec_id ||
1182 feed_codec->sample_rate != codec->sample_rate ||
1183 feed_codec->width != codec->width ||
1184 feed_codec->height != codec->height)
1187 /* Potential stream */
1189 /* We want the fastest stream less than bit_rate, or the slowest
1190 * faster than bit_rate
1193 if (feed_codec->bit_rate <= bit_rate) {
1194 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1195 best_bitrate = feed_codec->bit_rate;
1199 if (feed_codec->bit_rate < best_bitrate) {
1200 best_bitrate = feed_codec->bit_rate;
1209 static int modify_current_stream(HTTPContext *c, char *rates)
1212 FFStream *req = c->stream;
1213 int action_required = 0;
1215 /* Not much we can do for a feed */
1219 for (i = 0; i < req->nb_streams; i++) {
1220 AVCodecContext *codec = req->streams[i]->codec;
1224 c->switch_feed_streams[i] = req->feed_streams[i];
1227 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1230 /* Wants off or slow */
1231 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1233 /* This doesn't work well when it turns off the only stream! */
1234 c->switch_feed_streams[i] = -2;
1235 c->feed_streams[i] = -2;
1240 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1241 action_required = 1;
1244 return action_required;
1247 /* XXX: factorize in utils.c ? */
1248 /* XXX: take care with different space meaning */
1249 static void skip_spaces(const char **pp)
1253 while (*p == ' ' || *p == '\t')
1258 static void get_word(char *buf, int buf_size, const char **pp)
1266 while (!av_isspace(*p) && *p != '\0') {
1267 if ((q - buf) < buf_size - 1)
1276 static void get_arg(char *buf, int buf_size, const char **pp)
1283 while (av_isspace(*p)) p++;
1286 if (*p == '\"' || *p == '\'')
1298 if ((q - buf) < buf_size - 1)
1303 if (quote && *p == quote)
1308 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1309 const char *p, const char *filename, int line_num)
1315 get_arg(arg, sizeof(arg), &p);
1316 if (av_strcasecmp(arg, "allow") == 0)
1317 acl.action = IP_ALLOW;
1318 else if (av_strcasecmp(arg, "deny") == 0)
1319 acl.action = IP_DENY;
1321 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1322 filename, line_num, arg);
1326 get_arg(arg, sizeof(arg), &p);
1328 if (resolve_host(&acl.first, arg) != 0) {
1329 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1330 filename, line_num, arg);
1333 acl.last = acl.first;
1335 get_arg(arg, sizeof(arg), &p);
1338 if (resolve_host(&acl.last, arg) != 0) {
1339 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1340 filename, line_num, arg);
1346 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1347 IPAddressACL **naclp = 0;
1353 naclp = &stream->acl;
1359 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1360 filename, line_num);
1366 naclp = &(*naclp)->next;
1374 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1379 IPAddressACL *acl = NULL;
1383 f = fopen(stream->dynamic_acl, "r");
1385 perror(stream->dynamic_acl);
1389 acl = av_mallocz(sizeof(IPAddressACL));
1393 if (fgets(line, sizeof(line), f) == NULL)
1397 while (av_isspace(*p))
1399 if (*p == '\0' || *p == '#')
1401 get_arg(cmd, sizeof(cmd), &p);
1403 if (!av_strcasecmp(cmd, "ACL"))
1404 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1411 static void free_acl_list(IPAddressACL *in_acl)
1413 IPAddressACL *pacl,*pacl2;
1423 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1425 enum IPAddressAction last_action = IP_DENY;
1427 struct in_addr *src = &c->from_addr.sin_addr;
1428 unsigned long src_addr = src->s_addr;
1430 for (acl = in_acl; acl; acl = acl->next) {
1431 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1432 return (acl->action == IP_ALLOW) ? 1 : 0;
1433 last_action = acl->action;
1436 /* Nothing matched, so return not the last action */
1437 return (last_action == IP_DENY) ? 1 : 0;
1440 static int validate_acl(FFStream *stream, HTTPContext *c)
1446 /* if stream->acl is null validate_acl_list will return 1 */
1447 ret = validate_acl_list(stream->acl, c);
1449 if (stream->dynamic_acl[0]) {
1450 acl = parse_dynamic_acl(stream, c);
1452 ret = validate_acl_list(acl, c);
1460 /* compute the real filename of a file by matching it without its
1461 extensions to all the stream filenames */
1462 static void compute_real_filename(char *filename, int max_size)
1469 /* compute filename by matching without the file extensions */
1470 av_strlcpy(file1, filename, sizeof(file1));
1471 p = strrchr(file1, '.');
1474 for(stream = first_stream; stream != NULL; stream = stream->next) {
1475 av_strlcpy(file2, stream->filename, sizeof(file2));
1476 p = strrchr(file2, '.');
1479 if (!strcmp(file1, file2)) {
1480 av_strlcpy(filename, stream->filename, max_size);
1495 /* parse http request and prepare header */
1496 static int http_parse_request(HTTPContext *c)
1500 enum RedirType redir_type;
1502 char info[1024], filename[1024];
1506 const char *mime_type;
1510 const char *useragent = 0;
1513 get_word(cmd, sizeof(cmd), &p);
1514 av_strlcpy(c->method, cmd, sizeof(c->method));
1516 if (!strcmp(cmd, "GET"))
1518 else if (!strcmp(cmd, "POST"))
1523 get_word(url, sizeof(url), &p);
1524 av_strlcpy(c->url, url, sizeof(c->url));
1526 get_word(protocol, sizeof(protocol), (const char **)&p);
1527 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1530 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1533 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1535 /* find the filename and the optional info string in the request */
1536 p1 = strchr(url, '?');
1538 av_strlcpy(info, p1, sizeof(info));
1543 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1545 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1546 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1548 if (*useragent && *useragent != '\n' && av_isspace(*useragent))
1552 p = strchr(p, '\n');
1559 redir_type = REDIR_NONE;
1560 if (av_match_ext(filename, "asx")) {
1561 redir_type = REDIR_ASX;
1562 filename[strlen(filename)-1] = 'f';
1563 } else if (av_match_ext(filename, "asf") &&
1564 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1565 /* if this isn't WMP or lookalike, return the redirector file */
1566 redir_type = REDIR_ASF;
1567 } else if (av_match_ext(filename, "rpm,ram")) {
1568 redir_type = REDIR_RAM;
1569 strcpy(filename + strlen(filename)-2, "m");
1570 } else if (av_match_ext(filename, "rtsp")) {
1571 redir_type = REDIR_RTSP;
1572 compute_real_filename(filename, sizeof(filename) - 1);
1573 } else if (av_match_ext(filename, "sdp")) {
1574 redir_type = REDIR_SDP;
1575 compute_real_filename(filename, sizeof(filename) - 1);
1578 // "redirect" / request to index.html
1579 if (!strlen(filename))
1580 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1582 stream = first_stream;
1583 while (stream != NULL) {
1584 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1586 stream = stream->next;
1588 if (stream == NULL) {
1589 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1590 http_log("File '%s' not found\n", url);
1595 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1596 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1598 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1599 c->http_error = 301;
1601 snprintf(q, c->buffer_size,
1602 "HTTP/1.0 301 Moved\r\n"
1604 "Content-type: text/html\r\n"
1606 "<html><head><title>Moved</title></head><body>\r\n"
1607 "You should be <a href=\"%s\">redirected</a>.\r\n"
1608 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1610 /* prepare output buffer */
1611 c->buffer_ptr = c->buffer;
1613 c->state = HTTPSTATE_SEND_HEADER;
1617 /* If this is WMP, get the rate information */
1618 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1619 if (modify_current_stream(c, ratebuf)) {
1620 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1621 if (c->switch_feed_streams[i] >= 0)
1622 c->switch_feed_streams[i] = -1;
1627 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1628 current_bandwidth += stream->bandwidth;
1630 /* If already streaming this feed, do not let start another feeder. */
1631 if (stream->feed_opened) {
1632 snprintf(msg, sizeof(msg), "This feed is already being received.");
1633 http_log("Feed '%s' already being received\n", stream->feed_filename);
1637 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1638 c->http_error = 503;
1640 snprintf(q, c->buffer_size,
1641 "HTTP/1.0 503 Server too busy\r\n"
1642 "Content-type: text/html\r\n"
1644 "<html><head><title>Too busy</title></head><body>\r\n"
1645 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1646 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1647 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1648 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1650 /* prepare output buffer */
1651 c->buffer_ptr = c->buffer;
1653 c->state = HTTPSTATE_SEND_HEADER;
1657 if (redir_type != REDIR_NONE) {
1658 const char *hostinfo = 0;
1660 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1661 if (av_strncasecmp(p, "Host:", 5) == 0) {
1665 p = strchr(p, '\n');
1676 while (av_isspace(*hostinfo))
1679 eoh = strchr(hostinfo, '\n');
1681 if (eoh[-1] == '\r')
1684 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1685 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1686 hostbuf[eoh - hostinfo] = 0;
1688 c->http_error = 200;
1690 switch(redir_type) {
1692 snprintf(q, c->buffer_size,
1693 "HTTP/1.0 200 ASX Follows\r\n"
1694 "Content-type: video/x-ms-asf\r\n"
1696 "<ASX Version=\"3\">\r\n"
1697 //"<!-- Autogenerated by ffserver -->\r\n"
1698 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1699 "</ASX>\r\n", hostbuf, filename, info);
1703 snprintf(q, c->buffer_size,
1704 "HTTP/1.0 200 RAM Follows\r\n"
1705 "Content-type: audio/x-pn-realaudio\r\n"
1707 "# Autogenerated by ffserver\r\n"
1708 "http://%s/%s%s\r\n", hostbuf, filename, info);
1712 snprintf(q, c->buffer_size,
1713 "HTTP/1.0 200 ASF Redirect follows\r\n"
1714 "Content-type: video/x-ms-asf\r\n"
1717 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1722 char hostname[256], *p;
1723 /* extract only hostname */
1724 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1725 p = strrchr(hostname, ':');
1728 snprintf(q, c->buffer_size,
1729 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1730 /* XXX: incorrect mime type ? */
1731 "Content-type: application/x-rtsp\r\n"
1733 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1742 struct sockaddr_in my_addr;
1744 snprintf(q, c->buffer_size,
1745 "HTTP/1.0 200 OK\r\n"
1746 "Content-type: application/sdp\r\n"
1750 len = sizeof(my_addr);
1751 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1753 /* XXX: should use a dynamic buffer */
1754 sdp_data_size = prepare_sdp_description(stream,
1757 if (sdp_data_size > 0) {
1758 memcpy(q, sdp_data, sdp_data_size);
1770 /* prepare output buffer */
1771 c->buffer_ptr = c->buffer;
1773 c->state = HTTPSTATE_SEND_HEADER;
1779 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1783 stream->conns_served++;
1785 /* XXX: add there authenticate and IP match */
1788 /* if post, it means a feed is being sent */
1789 if (!stream->is_feed) {
1790 /* However it might be a status report from WMP! Let us log the
1791 * data as it might come in handy one day. */
1792 const char *logline = 0;
1795 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1796 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1800 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1801 client_id = strtol(p + 18, 0, 10);
1802 p = strchr(p, '\n');
1810 char *eol = strchr(logline, '\n');
1815 if (eol[-1] == '\r')
1817 http_log("%.*s\n", (int) (eol - logline), logline);
1818 c->suppress_log = 1;
1823 http_log("\nGot request:\n%s\n", c->buffer);
1826 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1829 /* Now we have to find the client_id */
1830 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1831 if (wmpc->wmp_client_id == client_id)
1835 if (wmpc && modify_current_stream(wmpc, ratebuf))
1836 wmpc->switch_pending = 1;
1839 snprintf(msg, sizeof(msg), "POST command not handled");
1843 if (http_start_receive_data(c) < 0) {
1844 snprintf(msg, sizeof(msg), "could not open feed");
1848 c->state = HTTPSTATE_RECEIVE_DATA;
1853 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1854 http_log("\nGot request:\n%s\n", c->buffer);
1857 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1860 /* open input stream */
1861 if (open_input_stream(c, info) < 0) {
1862 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1866 /* prepare http header */
1868 av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n");
1869 mime_type = c->stream->fmt->mime_type;
1871 mime_type = "application/x-octet-stream";
1872 av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n");
1874 /* for asf, we need extra headers */
1875 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1876 /* Need to allocate a client id */
1878 c->wmp_client_id = av_lfg_get(&random_state);
1880 av_strlcatf(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);
1882 av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type);
1883 av_strlcatf(c->buffer, c->buffer_size, "\r\n");
1884 q = c->buffer + strlen(c->buffer);
1886 /* prepare output buffer */
1888 c->buffer_ptr = c->buffer;
1890 c->state = HTTPSTATE_SEND_HEADER;
1893 c->http_error = 404;
1896 snprintf(q, c->buffer_size,
1897 "HTTP/1.0 404 Not Found\r\n"
1898 "Content-type: text/html\r\n"
1901 "<head><title>404 Not Found</title></head>\n"
1905 /* prepare output buffer */
1906 c->buffer_ptr = c->buffer;
1908 c->state = HTTPSTATE_SEND_HEADER;
1912 c->http_error = 200; /* horrible : we use this value to avoid
1913 going to the send data state */
1914 c->state = HTTPSTATE_SEND_HEADER;
1918 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1920 static const char suffix[] = " kMGTP";
1923 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1925 avio_printf(pb, "%"PRId64"%c", count, *s);
1928 static void compute_status(HTTPContext *c)
1937 if (avio_open_dyn_buf(&pb) < 0) {
1938 /* XXX: return an error ? */
1939 c->buffer_ptr = c->buffer;
1940 c->buffer_end = c->buffer;
1944 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1945 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1946 avio_printf(pb, "Pragma: no-cache\r\n");
1947 avio_printf(pb, "\r\n");
1949 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1950 if (c->stream->feed_filename[0])
1951 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1952 avio_printf(pb, "</head>\n<body>");
1953 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1955 avio_printf(pb, "<h2>Available Streams</h2>\n");
1956 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1957 avio_printf(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");
1958 stream = first_stream;
1959 while (stream != NULL) {
1960 char sfilename[1024];
1963 if (stream->feed != stream) {
1964 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1965 eosf = sfilename + strlen(sfilename);
1966 if (eosf - sfilename >= 4) {
1967 if (strcmp(eosf - 4, ".asf") == 0)
1968 strcpy(eosf - 4, ".asx");
1969 else if (strcmp(eosf - 3, ".rm") == 0)
1970 strcpy(eosf - 3, ".ram");
1971 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1972 /* generate a sample RTSP director if
1973 unicast. Generate an SDP redirector if
1975 eosf = strrchr(sfilename, '.');
1977 eosf = sfilename + strlen(sfilename);
1978 if (stream->is_multicast)
1979 strcpy(eosf, ".sdp");
1981 strcpy(eosf, ".rtsp");
1985 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1986 sfilename, stream->filename);
1987 avio_printf(pb, "<td align=right> %d <td align=right> ",
1988 stream->conns_served);
1989 fmt_bytecount(pb, stream->bytes_served);
1990 switch(stream->stream_type) {
1991 case STREAM_TYPE_LIVE: {
1992 int audio_bit_rate = 0;
1993 int video_bit_rate = 0;
1994 const char *audio_codec_name = "";
1995 const char *video_codec_name = "";
1996 const char *audio_codec_name_extra = "";
1997 const char *video_codec_name_extra = "";
1999 for(i=0;i<stream->nb_streams;i++) {
2000 AVStream *st = stream->streams[i];
2001 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2002 switch(st->codec->codec_type) {
2003 case AVMEDIA_TYPE_AUDIO:
2004 audio_bit_rate += st->codec->bit_rate;
2006 if (*audio_codec_name)
2007 audio_codec_name_extra = "...";
2008 audio_codec_name = codec->name;
2011 case AVMEDIA_TYPE_VIDEO:
2012 video_bit_rate += st->codec->bit_rate;
2014 if (*video_codec_name)
2015 video_codec_name_extra = "...";
2016 video_codec_name = codec->name;
2019 case AVMEDIA_TYPE_DATA:
2020 video_bit_rate += st->codec->bit_rate;
2026 avio_printf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s",
2029 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
2030 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
2032 avio_printf(pb, "<td>%s", stream->feed->filename);
2034 avio_printf(pb, "<td>%s", stream->feed_filename);
2035 avio_printf(pb, "\n");
2039 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
2043 stream = stream->next;
2045 avio_printf(pb, "</table>\n");
2047 stream = first_stream;
2048 while (stream != NULL) {
2049 if (stream->feed == stream) {
2050 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2052 avio_printf(pb, "Running as pid %d.\n", stream->pid);
2059 /* This is somewhat linux specific I guess */
2060 snprintf(ps_cmd, sizeof(ps_cmd),
2061 "ps -o \"%%cpu,cputime\" --no-headers %d",
2064 pid_stat = popen(ps_cmd, "r");
2069 if (fscanf(pid_stat, "%9s %63s", cpuperc,
2071 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2079 avio_printf(pb, "<p>");
2081 avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
2083 for (i = 0; i < stream->nb_streams; i++) {
2084 AVStream *st = stream->streams[i];
2085 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2086 const char *type = "unknown";
2087 char parameters[64];
2091 switch(st->codec->codec_type) {
2092 case AVMEDIA_TYPE_AUDIO:
2094 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2096 case AVMEDIA_TYPE_VIDEO:
2098 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2099 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2104 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2105 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2107 avio_printf(pb, "</table>\n");
2110 stream = stream->next;
2113 /* connection status */
2114 avio_printf(pb, "<h2>Connection Status</h2>\n");
2116 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2117 nb_connections, nb_max_connections);
2119 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2120 current_bandwidth, max_bandwidth);
2122 avio_printf(pb, "<table>\n");
2123 avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
2124 c1 = first_http_ctx;
2126 while (c1 != NULL) {
2132 for (j = 0; j < c1->stream->nb_streams; j++) {
2133 if (!c1->stream->feed)
2134 bitrate += c1->stream->streams[j]->codec->bit_rate;
2135 else if (c1->feed_streams[j] >= 0)
2136 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2141 p = inet_ntoa(c1->from_addr.sin_addr);
2142 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2144 c1->stream ? c1->stream->filename : "",
2145 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2148 http_state[c1->state]);
2149 fmt_bytecount(pb, bitrate);
2150 avio_printf(pb, "<td align=right>");
2151 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2152 avio_printf(pb, "<td align=right>");
2153 fmt_bytecount(pb, c1->data_count);
2154 avio_printf(pb, "\n");
2157 avio_printf(pb, "</table>\n");
2162 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2163 avio_printf(pb, "</body>\n</html>\n");
2165 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2166 c->buffer_ptr = c->pb_buffer;
2167 c->buffer_end = c->pb_buffer + len;
2170 static int open_input_stream(HTTPContext *c, const char *info)
2173 char input_filename[1024];
2174 AVFormatContext *s = NULL;
2175 int buf_size, i, ret;
2178 /* find file name */
2179 if (c->stream->feed) {
2180 strcpy(input_filename, c->stream->feed->feed_filename);
2181 buf_size = FFM_PACKET_SIZE;
2182 /* compute position (absolute time) */
2183 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2184 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) {
2185 http_log("Invalid date specification '%s' for stream\n", buf);
2188 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2189 int prebuffer = strtol(buf, 0, 10);
2190 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2192 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2194 strcpy(input_filename, c->stream->feed_filename);
2196 /* compute position (relative time) */
2197 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2198 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) {
2199 http_log("Invalid date specification '%s' for stream\n", buf);
2205 if (!input_filename[0]) {
2206 http_log("No filename was specified for stream\n");
2207 return AVERROR(EINVAL);
2211 if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) {
2212 http_log("Could not open input '%s': %s\n", input_filename, av_err2str(ret));
2216 /* set buffer size */
2217 if (buf_size > 0) ffio_set_buf_size(s->pb, buf_size);
2219 s->flags |= AVFMT_FLAG_GENPTS;
2221 if (strcmp(s->iformat->name, "ffm") &&
2222 (ret = avformat_find_stream_info(c->fmt_in, NULL)) < 0) {
2223 http_log("Could not find stream info for input '%s'\n", input_filename);
2224 avformat_close_input(&s);
2228 /* choose stream as clock source (we favorize video stream if
2229 present) for packet sending */
2230 c->pts_stream_index = 0;
2231 for(i=0;i<c->stream->nb_streams;i++) {
2232 if (c->pts_stream_index == 0 &&
2233 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2234 c->pts_stream_index = i;
2238 if (c->fmt_in->iformat->read_seek)
2239 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2240 /* set the start time (needed for maxtime and RTP packet timing) */
2241 c->start_time = cur_time;
2242 c->first_pts = AV_NOPTS_VALUE;
2246 /* return the server clock (in us) */
2247 static int64_t get_server_clock(HTTPContext *c)
2249 /* compute current pts value from system time */
2250 return (cur_time - c->start_time) * 1000;
2253 /* return the estimated time at which the current packet must be sent
2255 static int64_t get_packet_send_clock(HTTPContext *c)
2257 int bytes_left, bytes_sent, frame_bytes;
2259 frame_bytes = c->cur_frame_bytes;
2260 if (frame_bytes <= 0)
2263 bytes_left = c->buffer_end - c->buffer_ptr;
2264 bytes_sent = frame_bytes - bytes_left;
2265 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2270 static int http_prepare_data(HTTPContext *c)
2273 AVFormatContext *ctx;
2275 av_freep(&c->pb_buffer);
2277 case HTTPSTATE_SEND_DATA_HEADER:
2278 ctx = avformat_alloc_context();
2281 av_dict_copy(&(c->fmt_ctx.metadata), c->stream->metadata, 0);
2282 c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
2284 for(i=0;i<c->stream->nb_streams;i++) {
2286 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2287 /* if file or feed, then just take streams from FFStream struct */
2288 if (!c->stream->feed ||
2289 c->stream->feed == c->stream)
2290 src = c->stream->streams[i];
2292 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2294 *(c->fmt_ctx.streams[i]) = *src;
2295 c->fmt_ctx.streams[i]->priv_data = 0;
2296 c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
2297 AVStream, not in codec */
2299 /* set output format parameters */
2300 c->fmt_ctx.oformat = c->stream->fmt;
2301 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2303 c->got_key_frame = 0;
2305 /* prepare header and save header data in a stream */
2306 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2307 /* XXX: potential leak */
2310 c->fmt_ctx.pb->seekable = 0;
2313 * HACK to avoid mpeg ps muxer to spit many underflow errors
2314 * Default value from FFmpeg
2315 * Try to set it use configuration option
2317 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2319 if ((ret = avformat_write_header(&c->fmt_ctx, NULL)) < 0) {
2320 http_log("Error writing output header for stream '%s': %s\n",
2321 c->stream->filename, av_err2str(ret));
2324 av_dict_free(&c->fmt_ctx.metadata);
2326 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2327 c->buffer_ptr = c->pb_buffer;
2328 c->buffer_end = c->pb_buffer + len;
2330 c->state = HTTPSTATE_SEND_DATA;
2331 c->last_packet_sent = 0;
2333 case HTTPSTATE_SEND_DATA:
2334 /* find a new packet */
2335 /* read a packet from the input stream */
2336 if (c->stream->feed)
2337 ffm_set_write_index(c->fmt_in,
2338 c->stream->feed->feed_write_index,
2339 c->stream->feed->feed_size);
2341 if (c->stream->max_time &&
2342 c->stream->max_time + c->start_time - cur_time < 0)
2343 /* We have timed out */
2344 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2348 ret = av_read_frame(c->fmt_in, &pkt);
2350 if (c->stream->feed) {
2351 /* if coming from feed, it means we reached the end of the
2352 ffm file, so must wait for more data */
2353 c->state = HTTPSTATE_WAIT_FEED;
2354 return 1; /* state changed */
2355 } else if (ret == AVERROR(EAGAIN)) {
2356 /* input not ready, come back later */
2359 if (c->stream->loop) {
2360 avformat_close_input(&c->fmt_in);
2361 if (open_input_stream(c, "") < 0)
2366 /* must send trailer now because eof or error */
2367 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2371 int source_index = pkt.stream_index;
2372 /* update first pts if needed */
2373 if (c->first_pts == AV_NOPTS_VALUE) {
2374 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2375 c->start_time = cur_time;
2377 /* send it to the appropriate stream */
2378 if (c->stream->feed) {
2379 /* if coming from a feed, select the right stream */
2380 if (c->switch_pending) {
2381 c->switch_pending = 0;
2382 for(i=0;i<c->stream->nb_streams;i++) {
2383 if (c->switch_feed_streams[i] == pkt.stream_index)
2384 if (pkt.flags & AV_PKT_FLAG_KEY)
2385 c->switch_feed_streams[i] = -1;
2386 if (c->switch_feed_streams[i] >= 0)
2387 c->switch_pending = 1;
2390 for(i=0;i<c->stream->nb_streams;i++) {
2391 if (c->stream->feed_streams[i] == pkt.stream_index) {
2392 AVStream *st = c->fmt_in->streams[source_index];
2393 pkt.stream_index = i;
2394 if (pkt.flags & AV_PKT_FLAG_KEY &&
2395 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2396 c->stream->nb_streams == 1))
2397 c->got_key_frame = 1;
2398 if (!c->stream->send_on_key || c->got_key_frame)
2403 AVCodecContext *codec;
2404 AVStream *ist, *ost;
2406 ist = c->fmt_in->streams[source_index];
2407 /* specific handling for RTP: we use several
2408 output stream (one for each RTP
2409 connection). XXX: need more abstract handling */
2410 if (c->is_packetized) {
2411 /* compute send time and duration */
2412 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2413 c->cur_pts -= c->first_pts;
2414 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2415 /* find RTP context */
2416 c->packet_stream_index = pkt.stream_index;
2417 ctx = c->rtp_ctx[c->packet_stream_index];
2419 av_free_packet(&pkt);
2422 codec = ctx->streams[0]->codec;
2423 /* only one stream per RTP connection */
2424 pkt.stream_index = 0;
2428 codec = ctx->streams[pkt.stream_index]->codec;
2431 if (c->is_packetized) {
2432 int max_packet_size;
2433 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2434 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2436 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2437 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2439 ret = avio_open_dyn_buf(&ctx->pb);
2442 /* XXX: potential leak */
2445 ost = ctx->streams[pkt.stream_index];
2447 ctx->pb->seekable = 0;
2448 if (pkt.dts != AV_NOPTS_VALUE)
2449 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2450 if (pkt.pts != AV_NOPTS_VALUE)
2451 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2452 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2453 if ((ret = av_write_frame(ctx, &pkt)) < 0) {
2454 http_log("Error writing frame to output for stream '%s': %s\n",
2455 c->stream->filename, av_err2str(ret));
2456 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2459 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2460 c->cur_frame_bytes = len;
2461 c->buffer_ptr = c->pb_buffer;
2462 c->buffer_end = c->pb_buffer + len;
2464 codec->frame_number++;
2466 av_free_packet(&pkt);
2470 av_free_packet(&pkt);
2475 case HTTPSTATE_SEND_DATA_TRAILER:
2476 /* last packet test ? */
2477 if (c->last_packet_sent || c->is_packetized)
2480 /* prepare header */
2481 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2482 /* XXX: potential leak */
2485 c->fmt_ctx.pb->seekable = 0;
2486 av_write_trailer(ctx);
2487 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2488 c->buffer_ptr = c->pb_buffer;
2489 c->buffer_end = c->pb_buffer + len;
2491 c->last_packet_sent = 1;
2497 /* should convert the format at the same time */
2498 /* send data starting at c->buffer_ptr to the output connection
2499 (either UDP or TCP connection) */
2500 static int http_send_data(HTTPContext *c)
2505 if (c->buffer_ptr >= c->buffer_end) {
2506 ret = http_prepare_data(c);
2510 /* state change requested */
2513 if (c->is_packetized) {
2514 /* RTP data output */
2515 len = c->buffer_end - c->buffer_ptr;
2517 /* fail safe - should never happen */
2519 c->buffer_ptr = c->buffer_end;
2522 len = (c->buffer_ptr[0] << 24) |
2523 (c->buffer_ptr[1] << 16) |
2524 (c->buffer_ptr[2] << 8) |
2526 if (len > (c->buffer_end - c->buffer_ptr))
2528 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2529 /* nothing to send yet: we can wait */
2533 c->data_count += len;
2534 update_datarate(&c->datarate, c->data_count);
2536 c->stream->bytes_served += len;
2538 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2539 /* RTP packets are sent inside the RTSP TCP connection */
2541 int interleaved_index, size;
2543 HTTPContext *rtsp_c;
2546 /* if no RTSP connection left, error */
2549 /* if already sending something, then wait. */
2550 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2552 if (avio_open_dyn_buf(&pb) < 0)
2554 interleaved_index = c->packet_stream_index * 2;
2555 /* RTCP packets are sent at odd indexes */
2556 if (c->buffer_ptr[1] == 200)
2557 interleaved_index++;
2558 /* write RTSP TCP header */
2560 header[1] = interleaved_index;
2561 header[2] = len >> 8;
2563 avio_write(pb, header, 4);
2564 /* write RTP packet data */
2566 avio_write(pb, c->buffer_ptr, len);
2567 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2568 /* prepare asynchronous TCP sending */
2569 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2570 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2571 c->buffer_ptr += len;
2573 /* send everything we can NOW */
2574 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2575 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2577 rtsp_c->packet_buffer_ptr += len;
2578 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2579 /* if we could not send all the data, we will
2580 send it later, so a new state is needed to
2581 "lock" the RTSP TCP connection */
2582 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2585 /* all data has been sent */
2586 av_freep(&c->packet_buffer);
2588 /* send RTP packet directly in UDP */
2590 ffurl_write(c->rtp_handles[c->packet_stream_index],
2591 c->buffer_ptr, len);
2592 c->buffer_ptr += len;
2593 /* here we continue as we can send several packets per 10 ms slot */
2596 /* TCP data output */
2597 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2599 if (ff_neterrno() != AVERROR(EAGAIN) &&
2600 ff_neterrno() != AVERROR(EINTR))
2601 /* error : close connection */
2606 c->buffer_ptr += len;
2608 c->data_count += len;
2609 update_datarate(&c->datarate, c->data_count);
2611 c->stream->bytes_served += len;
2619 static int http_start_receive_data(HTTPContext *c)
2624 if (c->stream->feed_opened) {
2625 http_log("Stream feed '%s' was not opened\n", c->stream->feed_filename);
2626 return AVERROR(EINVAL);
2629 /* Don't permit writing to this one */
2630 if (c->stream->readonly) {
2631 http_log("Cannot write to read-only file '%s'\n", c->stream->feed_filename);
2632 return AVERROR(EINVAL);
2636 fd = open(c->stream->feed_filename, O_RDWR);
2638 ret = AVERROR(errno);
2639 http_log("Could not open feed file '%s': %s\n",
2640 c->stream->feed_filename, strerror(errno));
2645 if (c->stream->truncate) {
2646 /* truncate feed file */
2647 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2648 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2649 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2650 ret = AVERROR(errno);
2651 http_log("Error truncating feed file '%s': %s\n",
2652 c->stream->feed_filename, strerror(errno));
2656 ret = ffm_read_write_index(fd);
2658 http_log("Error reading write index from feed file '%s': %s\n",
2659 c->stream->feed_filename, strerror(errno));
2662 c->stream->feed_write_index = ret;
2666 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2667 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2668 lseek(fd, 0, SEEK_SET);
2670 /* init buffer input */
2671 c->buffer_ptr = c->buffer;
2672 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2673 c->stream->feed_opened = 1;
2674 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2678 static int http_receive_data(HTTPContext *c)
2681 int len, loop_run = 0;
2683 while (c->chunked_encoding && !c->chunk_size &&
2684 c->buffer_end > c->buffer_ptr) {
2685 /* read chunk header, if present */
2686 len = recv(c->fd, c->buffer_ptr, 1, 0);
2689 if (ff_neterrno() != AVERROR(EAGAIN) &&
2690 ff_neterrno() != AVERROR(EINTR))
2691 /* error : close connection */
2694 } else if (len == 0) {
2695 /* end of connection : close it */
2697 } else if (c->buffer_ptr - c->buffer >= 2 &&
2698 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2699 c->chunk_size = strtol(c->buffer, 0, 16);
2700 if (c->chunk_size == 0) // end of stream
2702 c->buffer_ptr = c->buffer;
2704 } else if (++loop_run > 10) {
2705 /* no chunk header, abort */
2712 if (c->buffer_end > c->buffer_ptr) {
2713 len = recv(c->fd, c->buffer_ptr,
2714 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2716 if (ff_neterrno() != AVERROR(EAGAIN) &&
2717 ff_neterrno() != AVERROR(EINTR))
2718 /* error : close connection */
2720 } else if (len == 0)
2721 /* end of connection : close it */
2724 c->chunk_size -= len;
2725 c->buffer_ptr += len;
2726 c->data_count += len;
2727 update_datarate(&c->datarate, c->data_count);
2731 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2732 if (c->buffer[0] != 'f' ||
2733 c->buffer[1] != 'm') {
2734 http_log("Feed stream has become desynchronized -- disconnecting\n");
2739 if (c->buffer_ptr >= c->buffer_end) {
2740 FFStream *feed = c->stream;
2741 /* a packet has been received : write it in the store, except
2743 if (c->data_count > FFM_PACKET_SIZE) {
2744 /* XXX: use llseek or url_seek */
2745 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2746 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2747 http_log("Error writing to feed file: %s\n", strerror(errno));
2751 feed->feed_write_index += FFM_PACKET_SIZE;
2752 /* update file size */
2753 if (feed->feed_write_index > c->stream->feed_size)
2754 feed->feed_size = feed->feed_write_index;
2756 /* handle wrap around if max file size reached */
2757 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2758 feed->feed_write_index = FFM_PACKET_SIZE;
2761 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2762 http_log("Error writing index to feed file: %s\n", strerror(errno));
2766 /* wake up any waiting connections */
2767 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2768 if (c1->state == HTTPSTATE_WAIT_FEED &&
2769 c1->stream->feed == c->stream->feed)
2770 c1->state = HTTPSTATE_SEND_DATA;
2773 /* We have a header in our hands that contains useful data */
2774 AVFormatContext *s = avformat_alloc_context();
2776 AVInputFormat *fmt_in;
2782 /* use feed output format name to find corresponding input format */
2783 fmt_in = av_find_input_format(feed->fmt->name);
2787 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2788 0, NULL, NULL, NULL, NULL);
2792 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2797 /* Now we have the actual streams */
2798 if (s->nb_streams != feed->nb_streams) {
2799 avformat_close_input(&s);
2801 http_log("Feed '%s' stream number does not match registered feed\n",
2802 c->stream->feed_filename);
2806 for (i = 0; i < s->nb_streams; i++) {
2807 AVStream *fst = feed->streams[i];
2808 AVStream *st = s->streams[i];
2809 avcodec_copy_context(fst->codec, st->codec);
2812 avformat_close_input(&s);
2815 c->buffer_ptr = c->buffer;
2820 c->stream->feed_opened = 0;
2822 /* wake up any waiting connections to stop waiting for feed */
2823 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2824 if (c1->state == HTTPSTATE_WAIT_FEED &&
2825 c1->stream->feed == c->stream->feed)
2826 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2831 /********************************************************************/
2834 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2841 switch(error_number) {
2842 case RTSP_STATUS_OK:
2845 case RTSP_STATUS_METHOD:
2846 str = "Method Not Allowed";
2848 case RTSP_STATUS_BANDWIDTH:
2849 str = "Not Enough Bandwidth";
2851 case RTSP_STATUS_SESSION:
2852 str = "Session Not Found";
2854 case RTSP_STATUS_STATE:
2855 str = "Method Not Valid in This State";
2857 case RTSP_STATUS_AGGREGATE:
2858 str = "Aggregate operation not allowed";
2860 case RTSP_STATUS_ONLY_AGGREGATE:
2861 str = "Only aggregate operation allowed";
2863 case RTSP_STATUS_TRANSPORT:
2864 str = "Unsupported transport";
2866 case RTSP_STATUS_INTERNAL:
2867 str = "Internal Server Error";
2869 case RTSP_STATUS_SERVICE:
2870 str = "Service Unavailable";
2872 case RTSP_STATUS_VERSION:
2873 str = "RTSP Version not supported";
2876 str = "Unknown Error";
2880 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2881 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2883 /* output GMT time */
2886 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2887 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2890 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2892 rtsp_reply_header(c, error_number);
2893 avio_printf(c->pb, "\r\n");
2896 static int rtsp_parse_request(HTTPContext *c)
2898 const char *p, *p1, *p2;
2904 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2906 c->buffer_ptr[0] = '\0';
2909 get_word(cmd, sizeof(cmd), &p);
2910 get_word(url, sizeof(url), &p);
2911 get_word(protocol, sizeof(protocol), &p);
2913 av_strlcpy(c->method, cmd, sizeof(c->method));
2914 av_strlcpy(c->url, url, sizeof(c->url));
2915 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2917 if (avio_open_dyn_buf(&c->pb) < 0) {
2918 /* XXX: cannot do more */
2919 c->pb = NULL; /* safety */
2923 /* check version name */
2924 if (strcmp(protocol, "RTSP/1.0") != 0) {
2925 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2929 /* parse each header line */
2930 /* skip to next line */
2931 while (*p != '\n' && *p != '\0')
2935 while (*p != '\0') {
2936 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2940 if (p2 > p && p2[-1] == '\r')
2942 /* skip empty line */
2946 if (len > sizeof(line) - 1)
2947 len = sizeof(line) - 1;
2948 memcpy(line, p, len);
2950 ff_rtsp_parse_line(header, line, NULL, NULL);
2954 /* handle sequence number */
2955 c->seq = header->seq;
2957 if (!strcmp(cmd, "DESCRIBE"))
2958 rtsp_cmd_describe(c, url);
2959 else if (!strcmp(cmd, "OPTIONS"))
2960 rtsp_cmd_options(c, url);
2961 else if (!strcmp(cmd, "SETUP"))
2962 rtsp_cmd_setup(c, url, header);
2963 else if (!strcmp(cmd, "PLAY"))
2964 rtsp_cmd_play(c, url, header);
2965 else if (!strcmp(cmd, "PAUSE"))
2966 rtsp_cmd_pause(c, url, header);
2967 else if (!strcmp(cmd, "TEARDOWN"))
2968 rtsp_cmd_teardown(c, url, header);
2970 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2973 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2974 c->pb = NULL; /* safety */
2976 /* XXX: cannot do more */
2979 c->buffer_ptr = c->pb_buffer;
2980 c->buffer_end = c->pb_buffer + len;
2981 c->state = RTSPSTATE_SEND_REPLY;
2985 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2986 struct in_addr my_ip)
2988 AVFormatContext *avc;
2989 AVStream *avs = NULL;
2990 AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
2991 AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0);
2994 avc = avformat_alloc_context();
2995 if (avc == NULL || !rtp_format) {
2998 avc->oformat = rtp_format;
2999 av_dict_set(&avc->metadata, "title",
3000 entry ? entry->value : "No Title", 0);
3001 avc->nb_streams = stream->nb_streams;
3002 if (stream->is_multicast) {
3003 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
3004 inet_ntoa(stream->multicast_ip),
3005 stream->multicast_port, stream->multicast_ttl);
3007 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
3010 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
3011 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
3013 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
3014 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
3017 for(i = 0; i < stream->nb_streams; i++) {
3018 avc->streams[i] = &avs[i];
3019 avc->streams[i]->codec = stream->streams[i]->codec;
3021 *pbuffer = av_mallocz(2048);
3022 av_sdp_create(&avc, 1, *pbuffer, 2048);
3025 av_free(avc->streams);
3026 av_dict_free(&avc->metadata);
3030 return strlen(*pbuffer);
3033 static void rtsp_cmd_options(HTTPContext *c, const char *url)
3035 // rtsp_reply_header(c, RTSP_STATUS_OK);
3036 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
3037 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
3038 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
3039 avio_printf(c->pb, "\r\n");
3042 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
3050 struct sockaddr_in my_addr;
3052 /* find which url is asked */
3053 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3058 for(stream = first_stream; stream != NULL; stream = stream->next) {
3059 if (!stream->is_feed &&
3060 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
3061 !strcmp(path, stream->filename)) {
3065 /* no stream found */
3066 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3070 /* prepare the media description in sdp format */
3072 /* get the host IP */
3073 len = sizeof(my_addr);
3074 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3075 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3076 if (content_length < 0) {
3077 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3080 rtsp_reply_header(c, RTSP_STATUS_OK);
3081 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3082 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3083 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3084 avio_printf(c->pb, "\r\n");
3085 avio_write(c->pb, content, content_length);
3089 static HTTPContext *find_rtp_session(const char *session_id)
3093 if (session_id[0] == '\0')
3096 for(c = first_http_ctx; c != NULL; c = c->next) {
3097 if (!strcmp(c->session_id, session_id))
3103 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3105 RTSPTransportField *th;
3108 for(i=0;i<h->nb_transports;i++) {
3109 th = &h->transports[i];
3110 if (th->lower_transport == lower_transport)
3116 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3117 RTSPMessageHeader *h)
3120 int stream_index, rtp_port, rtcp_port;
3125 RTSPTransportField *th;
3126 struct sockaddr_in dest_addr;
3127 RTSPActionServerSetup setup;
3129 /* find which url is asked */
3130 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3135 /* now check each stream */
3136 for(stream = first_stream; stream != NULL; stream = stream->next) {
3137 if (!stream->is_feed &&
3138 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3139 /* accept aggregate filenames only if single stream */
3140 if (!strcmp(path, stream->filename)) {
3141 if (stream->nb_streams != 1) {
3142 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3149 for(stream_index = 0; stream_index < stream->nb_streams;
3151 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3152 stream->filename, stream_index);
3153 if (!strcmp(path, buf))
3158 /* no stream found */
3159 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3163 /* generate session id if needed */
3164 if (h->session_id[0] == '\0') {
3165 unsigned random0 = av_lfg_get(&random_state);
3166 unsigned random1 = av_lfg_get(&random_state);
3167 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3171 /* find rtp session, and create it if none found */
3172 rtp_c = find_rtp_session(h->session_id);
3174 /* always prefer UDP */
3175 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3177 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3179 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3184 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3185 th->lower_transport);
3187 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3191 /* open input stream */
3192 if (open_input_stream(rtp_c, "") < 0) {
3193 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3198 /* test if stream is OK (test needed because several SETUP needs
3199 to be done for a given file) */
3200 if (rtp_c->stream != stream) {
3201 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3205 /* test if stream is already set up */
3206 if (rtp_c->rtp_ctx[stream_index]) {
3207 rtsp_reply_error(c, RTSP_STATUS_STATE);
3211 /* check transport */
3212 th = find_transport(h, rtp_c->rtp_protocol);
3213 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3214 th->client_port_min <= 0)) {
3215 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3219 /* setup default options */
3220 setup.transport_option[0] = '\0';
3221 dest_addr = rtp_c->from_addr;
3222 dest_addr.sin_port = htons(th->client_port_min);
3225 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3226 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3230 /* now everything is OK, so we can send the connection parameters */
3231 rtsp_reply_header(c, RTSP_STATUS_OK);
3233 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3235 switch(rtp_c->rtp_protocol) {
3236 case RTSP_LOWER_TRANSPORT_UDP:
3237 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3238 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3239 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3240 "client_port=%d-%d;server_port=%d-%d",
3241 th->client_port_min, th->client_port_max,
3242 rtp_port, rtcp_port);
3244 case RTSP_LOWER_TRANSPORT_TCP:
3245 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3246 stream_index * 2, stream_index * 2 + 1);
3251 if (setup.transport_option[0] != '\0')
3252 avio_printf(c->pb, ";%s", setup.transport_option);
3253 avio_printf(c->pb, "\r\n");
3256 avio_printf(c->pb, "\r\n");
3260 /* find an rtp connection by using the session ID. Check consistency
3262 static HTTPContext *find_rtp_session_with_url(const char *url,
3263 const char *session_id)
3271 rtp_c = find_rtp_session(session_id);
3275 /* find which url is asked */
3276 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3280 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3281 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3282 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3283 rtp_c->stream->filename, s);
3284 if(!strncmp(path, buf, sizeof(buf))) {
3285 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3290 if (len > 0 && path[len - 1] == '/' &&
3291 !strncmp(path, rtp_c->stream->filename, len - 1))
3296 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3300 rtp_c = find_rtp_session_with_url(url, h->session_id);
3302 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3306 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3307 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3308 rtp_c->state != HTTPSTATE_READY) {
3309 rtsp_reply_error(c, RTSP_STATUS_STATE);
3313 rtp_c->state = HTTPSTATE_SEND_DATA;
3315 /* now everything is OK, so we can send the connection parameters */
3316 rtsp_reply_header(c, RTSP_STATUS_OK);
3318 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3319 avio_printf(c->pb, "\r\n");
3322 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3326 rtp_c = find_rtp_session_with_url(url, h->session_id);
3328 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3332 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3333 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3334 rtsp_reply_error(c, RTSP_STATUS_STATE);
3338 rtp_c->state = HTTPSTATE_READY;
3339 rtp_c->first_pts = AV_NOPTS_VALUE;
3340 /* now everything is OK, so we can send the connection parameters */
3341 rtsp_reply_header(c, RTSP_STATUS_OK);
3343 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3344 avio_printf(c->pb, "\r\n");
3347 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3351 rtp_c = find_rtp_session_with_url(url, h->session_id);
3353 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3357 /* now everything is OK, so we can send the connection parameters */
3358 rtsp_reply_header(c, RTSP_STATUS_OK);
3360 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3361 avio_printf(c->pb, "\r\n");
3363 /* abort the session */
3364 close_connection(rtp_c);
3368 /********************************************************************/
3371 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3372 FFStream *stream, const char *session_id,
3373 enum RTSPLowerTransport rtp_protocol)
3375 HTTPContext *c = NULL;
3376 const char *proto_str;
3378 /* XXX: should output a warning page when coming
3379 close to the connection limit */
3380 if (nb_connections >= nb_max_connections)
3383 /* add a new connection */
3384 c = av_mallocz(sizeof(HTTPContext));
3389 c->poll_entry = NULL;
3390 c->from_addr = *from_addr;
3391 c->buffer_size = IOBUFFER_INIT_SIZE;
3392 c->buffer = av_malloc(c->buffer_size);
3397 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3398 c->state = HTTPSTATE_READY;
3399 c->is_packetized = 1;
3400 c->rtp_protocol = rtp_protocol;
3402 /* protocol is shown in statistics */
3403 switch(c->rtp_protocol) {
3404 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3405 proto_str = "MCAST";
3407 case RTSP_LOWER_TRANSPORT_UDP:
3410 case RTSP_LOWER_TRANSPORT_TCP:
3417 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3418 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3420 current_bandwidth += stream->bandwidth;
3422 c->next = first_http_ctx;
3434 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3435 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3437 static int rtp_new_av_stream(HTTPContext *c,
3438 int stream_index, struct sockaddr_in *dest_addr,
3439 HTTPContext *rtsp_c)
3441 AVFormatContext *ctx;
3444 URLContext *h = NULL;
3446 int max_packet_size;
3448 /* now we can open the relevant output stream */
3449 ctx = avformat_alloc_context();
3452 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3454 st = av_mallocz(sizeof(AVStream));
3457 ctx->nb_streams = 1;
3458 ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams);
3461 ctx->streams[0] = st;
3463 if (!c->stream->feed ||
3464 c->stream->feed == c->stream)
3465 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3468 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3470 st->priv_data = NULL;
3472 /* build destination RTP address */
3473 ipaddr = inet_ntoa(dest_addr->sin_addr);
3475 switch(c->rtp_protocol) {
3476 case RTSP_LOWER_TRANSPORT_UDP:
3477 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3480 /* XXX: also pass as parameter to function ? */
3481 if (c->stream->is_multicast) {
3483 ttl = c->stream->multicast_ttl;
3486 snprintf(ctx->filename, sizeof(ctx->filename),
3487 "rtp://%s:%d?multicast=1&ttl=%d",
3488 ipaddr, ntohs(dest_addr->sin_port), ttl);
3490 snprintf(ctx->filename, sizeof(ctx->filename),
3491 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3494 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3496 c->rtp_handles[stream_index] = h;
3497 max_packet_size = h->max_packet_size;
3499 case RTSP_LOWER_TRANSPORT_TCP:
3502 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3508 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3509 ipaddr, ntohs(dest_addr->sin_port),
3510 c->stream->filename, stream_index, c->protocol);
3512 /* normally, no packets should be output here, but the packet size may be checked */
3513 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3514 /* XXX: close stream */
3517 if (avformat_write_header(ctx, NULL) < 0) {
3524 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3527 c->rtp_ctx[stream_index] = ctx;
3531 /********************************************************************/
3532 /* ffserver initialization */
3534 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3538 if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
3541 fst = av_mallocz(sizeof(AVStream));
3545 fst->codec = avcodec_alloc_context3(NULL);
3546 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3547 if (codec->extradata_size) {
3548 fst->codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
3549 memcpy(fst->codec->extradata, codec->extradata,
3550 codec->extradata_size);
3553 /* live streams must use the actual feed's codec since it may be
3554 * updated later to carry extradata needed by the streams.
3558 fst->priv_data = av_mallocz(sizeof(FeedData));
3559 fst->index = stream->nb_streams;
3560 avpriv_set_pts_info(fst, 33, 1, 90000);
3561 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3562 stream->streams[stream->nb_streams++] = fst;
3566 /* return the stream number in the feed */
3567 static int add_av_stream(FFStream *feed, AVStream *st)
3570 AVCodecContext *av, *av1;
3574 for(i=0;i<feed->nb_streams;i++) {
3575 st = feed->streams[i];
3577 if (av1->codec_id == av->codec_id &&
3578 av1->codec_type == av->codec_type &&
3579 av1->bit_rate == av->bit_rate) {
3581 switch(av->codec_type) {
3582 case AVMEDIA_TYPE_AUDIO:
3583 if (av1->channels == av->channels &&
3584 av1->sample_rate == av->sample_rate)
3587 case AVMEDIA_TYPE_VIDEO:
3588 if (av1->width == av->width &&
3589 av1->height == av->height &&
3590 av1->time_base.den == av->time_base.den &&
3591 av1->time_base.num == av->time_base.num &&
3592 av1->gop_size == av->gop_size)
3601 fst = add_av_stream1(feed, av, 0);
3604 return feed->nb_streams - 1;
3607 static void remove_stream(FFStream *stream)
3611 while (*ps != NULL) {
3619 /* specific mpeg4 handling : we extract the raw parameters */
3620 static void extract_mpeg4_header(AVFormatContext *infile)
3622 int mpeg4_count, i, size;
3627 infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE;
3630 for(i=0;i<infile->nb_streams;i++) {
3631 st = infile->streams[i];
3632 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3633 st->codec->extradata_size == 0) {
3640 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3641 while (mpeg4_count > 0) {
3642 if (av_read_frame(infile, &pkt) < 0)
3644 st = infile->streams[pkt.stream_index];
3645 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3646 st->codec->extradata_size == 0) {
3647 av_freep(&st->codec->extradata);
3648 /* fill extradata with the header */
3649 /* XXX: we make hard suppositions here ! */
3651 while (p < pkt.data + pkt.size - 4) {
3652 /* stop when vop header is found */
3653 if (p[0] == 0x00 && p[1] == 0x00 &&
3654 p[2] == 0x01 && p[3] == 0xb6) {
3655 size = p - pkt.data;
3656 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3657 st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
3658 st->codec->extradata_size = size;
3659 memcpy(st->codec->extradata, pkt.data, size);
3666 av_free_packet(&pkt);
3670 /* compute the needed AVStream for each file */
3671 static void build_file_streams(void)
3673 FFStream *stream, *stream_next;
3676 /* gather all streams */
3677 for(stream = first_stream; stream != NULL; stream = stream_next) {
3678 AVFormatContext *infile = NULL;
3679 stream_next = stream->next;
3680 if (stream->stream_type == STREAM_TYPE_LIVE &&
3682 /* the stream comes from a file */
3683 /* try to open the file */
3685 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3686 /* specific case : if transport stream output to RTP,
3687 we use a raw transport stream reader */
3688 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3691 if (!stream->feed_filename[0]) {
3692 http_log("Unspecified feed file for stream '%s'\n", stream->filename);
3696 http_log("Opening feed file '%s' for stream '%s'\n", stream->feed_filename, stream->filename);
3697 if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) {
3698 http_log("Could not open '%s': %s\n", stream->feed_filename, av_err2str(ret));
3699 /* remove stream (no need to spend more time on it) */
3701 remove_stream(stream);
3703 /* find all the AVStreams inside and reference them in
3705 if (avformat_find_stream_info(infile, NULL) < 0) {
3706 http_log("Could not find codec parameters from '%s'\n",
3707 stream->feed_filename);
3708 avformat_close_input(&infile);
3711 extract_mpeg4_header(infile);
3713 for(i=0;i<infile->nb_streams;i++)
3714 add_av_stream1(stream, infile->streams[i]->codec, 1);
3716 avformat_close_input(&infile);
3722 /* compute the needed AVStream for each feed */
3723 static void build_feed_streams(void)
3725 FFStream *stream, *feed;
3728 /* gather all streams */
3729 for(stream = first_stream; stream != NULL; stream = stream->next) {
3730 feed = stream->feed;
3732 if (stream->is_feed) {
3733 for(i=0;i<stream->nb_streams;i++)
3734 stream->feed_streams[i] = i;
3736 /* we handle a stream coming from a feed */
3737 for(i=0;i<stream->nb_streams;i++)
3738 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3743 /* create feed files if needed */
3744 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3747 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3748 /* See if it matches */
3749 AVFormatContext *s = NULL;
3752 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {
3753 /* set buffer size */
3754 ffio_set_buf_size(s->pb, FFM_PACKET_SIZE);
3755 /* Now see if it matches */
3756 if (s->nb_streams == feed->nb_streams) {
3758 for(i=0;i<s->nb_streams;i++) {
3760 sf = feed->streams[i];
3763 if (sf->index != ss->index ||
3765 http_log("Index & Id do not match for stream %d (%s)\n",
3766 i, feed->feed_filename);
3769 AVCodecContext *ccf, *ccs;
3773 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3775 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3776 http_log("Codecs do not match for stream %d\n", i);
3778 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3779 http_log("Codec bitrates do not match for stream %d\n", i);
3781 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3782 if (CHECK_CODEC(time_base.den) ||
3783 CHECK_CODEC(time_base.num) ||
3784 CHECK_CODEC(width) ||
3785 CHECK_CODEC(height)) {
3786 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3789 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3790 if (CHECK_CODEC(sample_rate) ||
3791 CHECK_CODEC(channels) ||
3792 CHECK_CODEC(frame_size)) {
3793 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3797 http_log("Unknown codec type\n");
3805 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3806 feed->feed_filename, s->nb_streams, feed->nb_streams);
3808 avformat_close_input(&s);
3810 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3811 feed->feed_filename);
3814 if (feed->readonly) {
3815 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3816 feed->feed_filename);
3819 unlink(feed->feed_filename);
3822 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3823 AVFormatContext *s = avformat_alloc_context();
3825 if (feed->readonly) {
3826 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3827 feed->feed_filename);
3831 /* only write the header of the ffm file */
3832 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3833 http_log("Could not open output feed file '%s'\n",
3834 feed->feed_filename);
3837 s->oformat = feed->fmt;
3838 s->nb_streams = feed->nb_streams;
3839 s->streams = feed->streams;
3840 if (avformat_write_header(s, NULL) < 0) {
3841 http_log("Container doesn't support the required parameters\n");
3844 /* XXX: need better api */
3845 av_freep(&s->priv_data);
3849 avformat_free_context(s);
3851 /* get feed size and write index */
3852 fd = open(feed->feed_filename, O_RDONLY);
3854 http_log("Could not open output feed file '%s'\n",
3855 feed->feed_filename);
3859 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3860 feed->feed_size = lseek(fd, 0, SEEK_END);
3861 /* ensure that we do not wrap before the end of file */
3862 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3863 feed->feed_max_size = feed->feed_size;
3869 /* compute the bandwidth used by each stream */
3870 static void compute_bandwidth(void)
3876 for(stream = first_stream; stream != NULL; stream = stream->next) {
3878 for(i=0;i<stream->nb_streams;i++) {
3879 AVStream *st = stream->streams[i];
3880 switch(st->codec->codec_type) {
3881 case AVMEDIA_TYPE_AUDIO:
3882 case AVMEDIA_TYPE_VIDEO:
3883 bandwidth += st->codec->bit_rate;
3889 stream->bandwidth = (bandwidth + 999) / 1000;
3893 /* add a codec and set the default parameters */
3894 static void add_codec(FFStream *stream, AVCodecContext *av)
3898 if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
3901 /* compute default parameters */
3902 switch(av->codec_type) {
3903 case AVMEDIA_TYPE_AUDIO:
3904 if (av->bit_rate == 0)
3905 av->bit_rate = 64000;
3906 if (av->sample_rate == 0)
3907 av->sample_rate = 22050;
3908 if (av->channels == 0)
3911 case AVMEDIA_TYPE_VIDEO:
3912 if (av->bit_rate == 0)
3913 av->bit_rate = 64000;
3914 if (av->time_base.num == 0){
3915 av->time_base.den = 5;
3916 av->time_base.num = 1;
3918 if (av->width == 0 || av->height == 0) {
3922 /* Bitrate tolerance is less for streaming */
3923 if (av->bit_rate_tolerance == 0)
3924 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3925 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3930 if (av->max_qdiff == 0)
3932 av->qcompress = 0.5;
3935 if (!av->nsse_weight)
3936 av->nsse_weight = 8;
3938 av->frame_skip_cmp = FF_CMP_DCTMAX;
3940 av->me_method = ME_EPZS;
3941 av->rc_buffer_aggressivity = 1.0;
3944 av->rc_eq = av_strdup("tex^qComp");
3945 if (!av->i_quant_factor)
3946 av->i_quant_factor = -0.8;
3947 if (!av->b_quant_factor)
3948 av->b_quant_factor = 1.25;
3949 if (!av->b_quant_offset)
3950 av->b_quant_offset = 1.25;
3951 if (!av->rc_max_rate)
3952 av->rc_max_rate = av->bit_rate * 2;
3954 if (av->rc_max_rate && !av->rc_buffer_size) {
3955 av->rc_buffer_size = av->rc_max_rate;
3964 st = av_mallocz(sizeof(AVStream));
3967 st->codec = avcodec_alloc_context3(NULL);
3968 stream->streams[stream->nb_streams++] = st;
3969 memcpy(st->codec, av, sizeof(AVCodecContext));
3972 static enum AVCodecID opt_codec(const char *name, enum AVMediaType type)
3974 AVCodec *codec = avcodec_find_encoder_by_name(name);
3976 if (!codec || codec->type != type)
3977 return AV_CODEC_ID_NONE;
3981 static int ffserver_opt_default(const char *opt, const char *arg,
3982 AVCodecContext *avctx, int type)
3985 const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);
3987 ret = av_opt_set(avctx, opt, arg, 0);
3991 static int ffserver_opt_preset(const char *arg,
3992 AVCodecContext *avctx, int type,
3993 enum AVCodecID *audio_id, enum AVCodecID *video_id)
3996 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3998 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
4000 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
4001 codec ? codec->name : NULL))) {
4002 fprintf(stderr, "File for preset '%s' not found\n", arg);
4007 int e= fscanf(f, "%999[^\n]\n", line) - 1;
4008 if(line[0] == '#' && !e)
4010 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
4012 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
4016 if(!strcmp(tmp, "acodec")){
4017 *audio_id = opt_codec(tmp2, AVMEDIA_TYPE_AUDIO);
4018 }else if(!strcmp(tmp, "vcodec")){
4019 *video_id = opt_codec(tmp2, AVMEDIA_TYPE_VIDEO);
4020 }else if(!strcmp(tmp, "scodec")){
4021 /* opt_subtitle_codec(tmp2); */
4022 }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){
4023 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
4034 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
4035 const char *mime_type)
4037 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
4040 AVOutputFormat *stream_fmt;
4041 char stream_format_name[64];
4043 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
4044 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
4053 static void report_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, ...)
4057 av_log(NULL, log_level, "%s:%d: ", filename, line_num);
4058 av_vlog(NULL, log_level, fmt, vl);
4064 static int parse_ffconfig(const char *filename)
4069 char arg[1024], arg2[1024];
4071 int val, errors, warnings, line_num;
4072 FFStream **last_stream, *stream, *redirect;
4073 FFStream **last_feed, *feed, *s;
4074 AVCodecContext audio_enc, video_enc;
4075 enum AVCodecID audio_id, video_id;
4078 f = fopen(filename, "r");
4080 ret = AVERROR(errno);
4081 av_log(NULL, AV_LOG_ERROR, "Could not open the configuration file '%s'\n", filename);
4085 errors = warnings = 0;
4087 first_stream = NULL;
4088 last_stream = &first_stream;
4090 last_feed = &first_feed;
4094 audio_id = AV_CODEC_ID_NONE;
4095 video_id = AV_CODEC_ID_NONE;
4096 #define ERROR(...) report_config_error(filename, line_num, AV_LOG_ERROR, &errors, __VA_ARGS__)
4097 #define WARNING(...) report_config_error(filename, line_num, AV_LOG_WARNING, &warnings, __VA_ARGS__)
4100 if (fgets(line, sizeof(line), f) == NULL)
4104 while (av_isspace(*p))
4106 if (*p == '\0' || *p == '#')
4109 get_arg(cmd, sizeof(cmd), &p);
4111 if (!av_strcasecmp(cmd, "Port")) {
4112 get_arg(arg, sizeof(arg), &p);
4114 if (val < 1 || val > 65536) {
4115 ERROR("Invalid_port: %s\n", arg);
4117 my_http_addr.sin_port = htons(val);
4118 } else if (!av_strcasecmp(cmd, "BindAddress")) {
4119 get_arg(arg, sizeof(arg), &p);
4120 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4121 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4123 } else if (!av_strcasecmp(cmd, "NoDaemon")) {
4124 WARNING("NoDaemon option has no effect, you should remove it\n");
4125 } else if (!av_strcasecmp(cmd, "RTSPPort")) {
4126 get_arg(arg, sizeof(arg), &p);
4128 if (val < 1 || val > 65536) {
4129 ERROR("%s:%d: Invalid port: %s\n", arg);
4131 my_rtsp_addr.sin_port = htons(atoi(arg));
4132 } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
4133 get_arg(arg, sizeof(arg), &p);
4134 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4135 ERROR("Invalid host/IP address: %s\n", arg);
4137 } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
4138 get_arg(arg, sizeof(arg), &p);
4140 if (val < 1 || val > 65536) {
4141 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4143 nb_max_http_connections = val;
4144 } else if (!av_strcasecmp(cmd, "MaxClients")) {
4145 get_arg(arg, sizeof(arg), &p);
4147 if (val < 1 || val > nb_max_http_connections) {
4148 ERROR("Invalid MaxClients: %s\n", arg);
4150 nb_max_connections = val;
4152 } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
4154 get_arg(arg, sizeof(arg), &p);
4155 llval = strtoll(arg, NULL, 10);
4156 if (llval < 10 || llval > 10000000) {
4157 ERROR("Invalid MaxBandwidth: %s\n", arg);
4159 max_bandwidth = llval;
4160 } else if (!av_strcasecmp(cmd, "CustomLog")) {
4161 if (!ffserver_debug)
4162 get_arg(logfilename, sizeof(logfilename), &p);
4163 } else if (!av_strcasecmp(cmd, "<Feed")) {
4164 /*********************************************/
4165 /* Feed related options */
4167 if (stream || feed) {
4168 ERROR("Already in a tag\n");
4170 feed = av_mallocz(sizeof(FFStream));
4172 ret = AVERROR(ENOMEM);
4175 get_arg(feed->filename, sizeof(feed->filename), &p);
4176 q = strrchr(feed->filename, '>');
4180 for (s = first_feed; s; s = s->next) {
4181 if (!strcmp(feed->filename, s->filename)) {
4182 ERROR("Feed '%s' already registered\n", s->filename);
4186 feed->fmt = av_guess_format("ffm", NULL, NULL);
4187 /* default feed file */
4188 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4189 "/tmp/%s.ffm", feed->filename);
4190 feed->feed_max_size = 5 * 1024 * 1024;
4192 feed->feed = feed; /* self feeding :-) */
4194 /* add in stream list */
4195 *last_stream = feed;
4196 last_stream = &feed->next;
4197 /* add in feed list */
4199 last_feed = &feed->next_feed;
4201 } else if (!av_strcasecmp(cmd, "Launch")) {
4205 feed->child_argv = av_mallocz(64 * sizeof(char *));
4206 if (!feed->child_argv) {
4207 ret = AVERROR(ENOMEM);
4210 for (i = 0; i < 62; i++) {
4211 get_arg(arg, sizeof(arg), &p);
4215 feed->child_argv[i] = av_strdup(arg);
4216 if (!feed->child_argv[i]) {
4217 ret = AVERROR(ENOMEM);
4222 feed->child_argv[i] =
4223 av_asprintf("http://%s:%d/%s",
4224 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4225 inet_ntoa(my_http_addr.sin_addr), ntohs(my_http_addr.sin_port),
4227 if (!feed->child_argv[i]) {
4228 ret = AVERROR(ENOMEM);
4232 } else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) {
4234 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4235 feed->readonly = !av_strcasecmp(cmd, "ReadOnlyFile");
4236 } else if (stream) {
4237 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4239 } else if (!av_strcasecmp(cmd, "Truncate")) {
4241 get_arg(arg, sizeof(arg), &p);
4242 /* assume Truncate is true in case no argument is specified */
4246 WARNING("Truncate N syntax in configuration file is deprecated, "
4247 "use Truncate alone with no arguments\n");
4248 feed->truncate = strtod(arg, NULL);
4251 } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
4256 get_arg(arg, sizeof(arg), &p);
4258 fsize = strtod(p1, &p1);
4259 switch(av_toupper(*p1)) {
4264 fsize *= 1024 * 1024;
4267 fsize *= 1024 * 1024 * 1024;
4270 feed->feed_max_size = (int64_t)fsize;
4271 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4272 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4275 } else if (!av_strcasecmp(cmd, "</Feed>")) {
4277 ERROR("No corresponding <Feed> for </Feed>\n");
4280 } else if (!av_strcasecmp(cmd, "<Stream")) {
4281 /*********************************************/
4282 /* Stream related options */
4284 if (stream || feed) {
4285 ERROR("Already in a tag\n");
4288 stream = av_mallocz(sizeof(FFStream));
4290 ret = AVERROR(ENOMEM);
4293 get_arg(stream->filename, sizeof(stream->filename), &p);
4294 q = strrchr(stream->filename, '>');
4298 for (s = first_stream; s; s = s->next) {
4299 if (!strcmp(stream->filename, s->filename)) {
4300 ERROR("Stream '%s' already registered\n", s->filename);
4304 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4305 avcodec_get_context_defaults3(&video_enc, NULL);
4306 avcodec_get_context_defaults3(&audio_enc, NULL);
4308 audio_id = AV_CODEC_ID_NONE;
4309 video_id = AV_CODEC_ID_NONE;
4311 audio_id = stream->fmt->audio_codec;
4312 video_id = stream->fmt->video_codec;
4315 *last_stream = stream;
4316 last_stream = &stream->next;
4318 } else if (!av_strcasecmp(cmd, "Feed")) {
4319 get_arg(arg, sizeof(arg), &p);
4324 while (sfeed != NULL) {
4325 if (!strcmp(sfeed->filename, arg))
4327 sfeed = sfeed->next_feed;
4330 ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg, stream->filename);
4332 stream->feed = sfeed;
4334 } else if (!av_strcasecmp(cmd, "Format")) {
4335 get_arg(arg, sizeof(arg), &p);
4337 if (!strcmp(arg, "status")) {
4338 stream->stream_type = STREAM_TYPE_STATUS;
4341 stream->stream_type = STREAM_TYPE_LIVE;
4342 /* jpeg cannot be used here, so use single frame jpeg */
4343 if (!strcmp(arg, "jpeg"))
4344 strcpy(arg, "mjpeg");
4345 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4347 ERROR("Unknown Format: %s\n", arg);
4351 audio_id = stream->fmt->audio_codec;
4352 video_id = stream->fmt->video_codec;
4355 } else if (!av_strcasecmp(cmd, "InputFormat")) {
4356 get_arg(arg, sizeof(arg), &p);
4358 stream->ifmt = av_find_input_format(arg);
4359 if (!stream->ifmt) {
4360 ERROR("Unknown input format: %s\n", arg);
4363 } else if (!av_strcasecmp(cmd, "FaviconURL")) {
4364 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4365 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4367 ERROR("FaviconURL only permitted for status streams\n");
4369 } else if (!av_strcasecmp(cmd, "Author") ||
4370 !av_strcasecmp(cmd, "Comment") ||
4371 !av_strcasecmp(cmd, "Copyright") ||
4372 !av_strcasecmp(cmd, "Title")) {
4373 get_arg(arg, sizeof(arg), &p);
4379 for (i = 0; i < strlen(cmd); i++)
4380 key[i] = av_tolower(cmd[i]);
4382 WARNING("'%s' option in configuration file is deprecated, "
4383 "use 'Metadata %s VALUE' instead\n", cmd, key);
4384 if ((ret = av_dict_set(&stream->metadata, key, arg, 0)) < 0) {
4385 ERROR("Could not set metadata '%s' to value '%s': %s\n",
4386 key, arg, av_err2str(ret));
4389 } else if (!av_strcasecmp(cmd, "Metadata")) {
4390 get_arg(arg, sizeof(arg), &p);
4391 get_arg(arg2, sizeof(arg2), &p);
4394 if ((ret = av_dict_set(&stream->metadata, arg, arg2, 0)) < 0) {
4395 ERROR("Could not set metadata '%s' to value '%s': %s\n",
4396 arg, arg2, av_err2str(ret));
4399 } else if (!av_strcasecmp(cmd, "Preroll")) {
4400 get_arg(arg, sizeof(arg), &p);
4402 stream->prebuffer = atof(arg) * 1000;
4403 } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
4405 stream->send_on_key = 1;
4406 } else if (!av_strcasecmp(cmd, "AudioCodec")) {
4407 get_arg(arg, sizeof(arg), &p);
4408 audio_id = opt_codec(arg, AVMEDIA_TYPE_AUDIO);
4409 if (audio_id == AV_CODEC_ID_NONE) {
4410 ERROR("Unknown AudioCodec: %s\n", arg);
4412 } else if (!av_strcasecmp(cmd, "VideoCodec")) {
4413 get_arg(arg, sizeof(arg), &p);
4414 video_id = opt_codec(arg, AVMEDIA_TYPE_VIDEO);
4415 if (video_id == AV_CODEC_ID_NONE) {
4416 ERROR("Unknown VideoCodec: %s\n", arg);
4418 } else if (!av_strcasecmp(cmd, "MaxTime")) {
4419 get_arg(arg, sizeof(arg), &p);
4421 stream->max_time = atof(arg) * 1000;
4422 } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
4423 get_arg(arg, sizeof(arg), &p);
4425 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4426 } else if (!av_strcasecmp(cmd, "AudioChannels")) {
4427 get_arg(arg, sizeof(arg), &p);
4429 audio_enc.channels = atoi(arg);
4430 } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
4431 get_arg(arg, sizeof(arg), &p);
4433 audio_enc.sample_rate = atoi(arg);
4434 } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
4436 int minrate, maxrate;
4438 get_arg(arg, sizeof(arg), &p);
4440 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4441 video_enc.rc_min_rate = minrate * 1000;
4442 video_enc.rc_max_rate = maxrate * 1000;
4444 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4447 } else if (!av_strcasecmp(cmd, "Debug")) {
4449 get_arg(arg, sizeof(arg), &p);
4450 video_enc.debug = strtol(arg,0,0);
4452 } else if (!av_strcasecmp(cmd, "Strict")) {
4454 get_arg(arg, sizeof(arg), &p);
4455 video_enc.strict_std_compliance = atoi(arg);
4457 } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
4459 get_arg(arg, sizeof(arg), &p);
4460 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4462 } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
4464 get_arg(arg, sizeof(arg), &p);
4465 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4467 } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
4468 get_arg(arg, sizeof(arg), &p);
4470 video_enc.bit_rate = atoi(arg) * 1000;
4472 } else if (!av_strcasecmp(cmd, "VideoSize")) {
4473 get_arg(arg, sizeof(arg), &p);
4475 ret = av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4477 ERROR("Invalid video size '%s'\n", arg);
4479 if ((video_enc.width % 16) != 0 ||
4480 (video_enc.height % 16) != 0) {
4481 ERROR("Image size must be a multiple of 16\n");
4485 } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
4486 get_arg(arg, sizeof(arg), &p);
4488 AVRational frame_rate;
4489 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4490 ERROR("Incorrect frame rate: %s\n", arg);
4492 video_enc.time_base.num = frame_rate.den;
4493 video_enc.time_base.den = frame_rate.num;
4496 } else if (!av_strcasecmp(cmd, "PixelFormat")) {
4497 get_arg(arg, sizeof(arg), &p);
4499 video_enc.pix_fmt = av_get_pix_fmt(arg);
4500 if (video_enc.pix_fmt == AV_PIX_FMT_NONE) {
4501 ERROR("Unknown pixel format: %s\n", arg);
4504 } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
4505 get_arg(arg, sizeof(arg), &p);
4507 video_enc.gop_size = atoi(arg);
4508 } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
4510 video_enc.gop_size = 1;
4511 } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
4513 video_enc.mb_decision = FF_MB_DECISION_BITS;
4514 } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
4516 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4517 video_enc.flags |= CODEC_FLAG_4MV;
4519 } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
4520 !av_strcasecmp(cmd, "AVOptionAudio")) {
4521 AVCodecContext *avctx;
4523 get_arg(arg, sizeof(arg), &p);
4524 get_arg(arg2, sizeof(arg2), &p);
4525 if (!av_strcasecmp(cmd, "AVOptionVideo")) {
4527 type = AV_OPT_FLAG_VIDEO_PARAM;
4530 type = AV_OPT_FLAG_AUDIO_PARAM;
4532 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4533 ERROR("Error setting %s option to %s %s\n", cmd, arg, arg2);
4535 } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
4536 !av_strcasecmp(cmd, "AVPresetAudio")) {
4537 AVCodecContext *avctx;
4539 get_arg(arg, sizeof(arg), &p);
4540 if (!av_strcasecmp(cmd, "AVPresetVideo")) {
4542 video_enc.codec_id = video_id;
4543 type = AV_OPT_FLAG_VIDEO_PARAM;
4546 audio_enc.codec_id = audio_id;
4547 type = AV_OPT_FLAG_AUDIO_PARAM;
4549 if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4550 ERROR("AVPreset error: %s\n", arg);
4552 } else if (!av_strcasecmp(cmd, "VideoTag")) {
4553 get_arg(arg, sizeof(arg), &p);
4554 if ((strlen(arg) == 4) && stream)
4555 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4556 } else if (!av_strcasecmp(cmd, "BitExact")) {
4558 video_enc.flags |= CODEC_FLAG_BITEXACT;
4559 } else if (!av_strcasecmp(cmd, "DctFastint")) {
4561 video_enc.dct_algo = FF_DCT_FASTINT;
4562 } else if (!av_strcasecmp(cmd, "IdctSimple")) {
4564 video_enc.idct_algo = FF_IDCT_SIMPLE;
4565 } else if (!av_strcasecmp(cmd, "Qscale")) {
4566 get_arg(arg, sizeof(arg), &p);
4568 video_enc.flags |= CODEC_FLAG_QSCALE;
4569 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4571 } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
4572 get_arg(arg, sizeof(arg), &p);
4574 video_enc.max_qdiff = atoi(arg);
4575 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4576 ERROR("VideoQDiff out of range\n");
4579 } else if (!av_strcasecmp(cmd, "VideoQMax")) {
4580 get_arg(arg, sizeof(arg), &p);
4582 video_enc.qmax = atoi(arg);
4583 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4584 ERROR("VideoQMax out of range\n");
4587 } else if (!av_strcasecmp(cmd, "VideoQMin")) {
4588 get_arg(arg, sizeof(arg), &p);
4590 video_enc.qmin = atoi(arg);
4591 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4592 ERROR("VideoQMin out of range\n");
4595 } else if (!av_strcasecmp(cmd, "LumiMask")) {
4596 get_arg(arg, sizeof(arg), &p);
4598 video_enc.lumi_masking = atof(arg);
4599 } else if (!av_strcasecmp(cmd, "DarkMask")) {
4600 get_arg(arg, sizeof(arg), &p);
4602 video_enc.dark_masking = atof(arg);
4603 } else if (!av_strcasecmp(cmd, "NoVideo")) {
4604 video_id = AV_CODEC_ID_NONE;
4605 } else if (!av_strcasecmp(cmd, "NoAudio")) {
4606 audio_id = AV_CODEC_ID_NONE;
4607 } else if (!av_strcasecmp(cmd, "ACL")) {
4608 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4609 } else if (!av_strcasecmp(cmd, "DynamicACL")) {
4611 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4613 } else if (!av_strcasecmp(cmd, "RTSPOption")) {
4614 get_arg(arg, sizeof(arg), &p);
4616 av_freep(&stream->rtsp_option);
4617 stream->rtsp_option = av_strdup(arg);
4619 } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
4620 get_arg(arg, sizeof(arg), &p);
4622 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4623 ERROR("Invalid host/IP address: %s\n", arg);
4625 stream->is_multicast = 1;
4626 stream->loop = 1; /* default is looping */
4628 } else if (!av_strcasecmp(cmd, "MulticastPort")) {
4629 get_arg(arg, sizeof(arg), &p);
4631 stream->multicast_port = atoi(arg);
4632 } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
4633 get_arg(arg, sizeof(arg), &p);
4635 stream->multicast_ttl = atoi(arg);
4636 } else if (!av_strcasecmp(cmd, "NoLoop")) {
4639 } else if (!av_strcasecmp(cmd, "</Stream>")) {
4641 ERROR("No corresponding <Stream> for </Stream>\n");
4643 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4644 if (audio_id != AV_CODEC_ID_NONE) {
4645 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4646 audio_enc.codec_id = audio_id;
4647 add_codec(stream, &audio_enc);
4649 if (video_id != AV_CODEC_ID_NONE) {
4650 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4651 video_enc.codec_id = video_id;
4652 add_codec(stream, &video_enc);
4657 } else if (!av_strcasecmp(cmd, "<Redirect")) {
4658 /*********************************************/
4660 if (stream || feed || redirect) {
4661 ERROR("Already in a tag\n");
4663 redirect = av_mallocz(sizeof(FFStream));
4665 ret = AVERROR(ENOMEM);
4668 *last_stream = redirect;
4669 last_stream = &redirect->next;
4671 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4672 q = strrchr(redirect->filename, '>');
4675 redirect->stream_type = STREAM_TYPE_REDIRECT;
4677 } else if (!av_strcasecmp(cmd, "URL")) {
4679 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4680 } else if (!av_strcasecmp(cmd, "</Redirect>")) {
4682 ERROR("No corresponding <Redirect> for </Redirect>\n");
4684 if (!redirect->feed_filename[0]) {
4685 ERROR("No URL found for <Redirect>\n");
4689 } else if (!av_strcasecmp(cmd, "LoadModule")) {
4690 ERROR("Loadable modules no longer supported\n");
4692 ERROR("Incorrect keyword: '%s'\n", cmd);
4702 return AVERROR(EINVAL);
4707 static void handle_child_exit(int sig)
4712 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4715 for (feed = first_feed; feed; feed = feed->next) {
4716 if (feed->pid == pid) {
4717 int uptime = time(0) - feed->pid_start;
4720 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4723 /* Turn off any more restarts */
4724 feed->child_argv = 0;
4729 need_to_start_children = 1;
4732 static void opt_debug(void)
4735 logfilename[0] = '-';
4738 void show_help_default(const char *opt, const char *arg)
4740 printf("usage: ffserver [options]\n"
4741 "Hyper fast multi format Audio/Video streaming server\n");
4743 show_help_options(options, "Main options:", 0, 0, 0);
4746 static const OptionDef options[] = {
4747 #include "cmdutils_common_opts.h"
4748 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4749 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4750 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4754 int main(int argc, char **argv)
4756 struct sigaction sigact = { { 0 } };
4759 config_filename = av_strdup("/etc/ffserver.conf");
4761 parse_loglevel(argc, argv, options);
4763 avformat_network_init();
4765 show_banner(argc, argv, options);
4767 my_program_name = argv[0];
4769 parse_options(NULL, argc, argv, options, NULL);
4771 unsetenv("http_proxy"); /* Kill the http_proxy */
4773 av_lfg_init(&random_state, av_get_random_seed());
4775 sigact.sa_handler = handle_child_exit;
4776 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4777 sigaction(SIGCHLD, &sigact, 0);
4779 if ((ret = parse_ffconfig(config_filename)) < 0) {
4780 fprintf(stderr, "Error reading configuration file '%s': %s\n",
4781 config_filename, av_err2str(ret));
4784 av_freep(&config_filename);
4786 /* open log file if needed */
4787 if (logfilename[0] != '\0') {
4788 if (!strcmp(logfilename, "-"))
4791 logfile = fopen(logfilename, "a");
4792 av_log_set_callback(http_av_log);
4795 build_file_streams();
4797 build_feed_streams();
4799 compute_bandwidth();
4802 signal(SIGPIPE, SIG_IGN);
4804 if (http_server() < 0) {
4805 http_log("Could not start server\n");