2 * Multiple format streaming server
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #define _XOPEN_SOURCE 600
26 #define closesocket close
31 #include "libavformat/avformat.h"
32 #include "libavformat/network.h"
33 #include "libavformat/os_support.h"
34 #include "libavformat/rtpdec.h"
35 #include "libavformat/rtsp.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/lfg.h"
38 #include "libavutil/random_seed.h"
39 #include "libavutil/parseutils.h"
40 #include "libavcodec/opt.h"
44 #include <sys/ioctl.h>
59 const char program_name[] = "FFserver";
60 const int program_birth_year = 2000;
62 static const OptionDef options[];
65 HTTPSTATE_WAIT_REQUEST,
66 HTTPSTATE_SEND_HEADER,
67 HTTPSTATE_SEND_DATA_HEADER,
68 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
69 HTTPSTATE_SEND_DATA_TRAILER,
70 HTTPSTATE_RECEIVE_DATA,
71 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
74 RTSPSTATE_WAIT_REQUEST,
76 RTSPSTATE_SEND_PACKET,
79 static const char *http_state[] = {
95 #if !FF_API_MAX_STREAMS
96 #define MAX_STREAMS 20
99 #define IOBUFFER_INIT_SIZE 8192
101 /* timeouts are in ms */
102 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
103 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
105 #define SYNC_TIMEOUT (10 * 1000)
107 typedef struct RTSPActionServerSetup {
109 char transport_option[512];
110 } RTSPActionServerSetup;
113 int64_t count1, count2;
114 int64_t time1, time2;
117 /* context associated with one connection */
118 typedef struct HTTPContext {
119 enum HTTPState state;
120 int fd; /* socket file descriptor */
121 struct sockaddr_in from_addr; /* origin */
122 struct pollfd *poll_entry; /* used when polling */
124 uint8_t *buffer_ptr, *buffer_end;
127 int chunked_encoding;
128 int chunk_size; /* 0 if it needs to be read */
129 struct HTTPContext *next;
130 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
134 /* input format handling */
135 AVFormatContext *fmt_in;
136 int64_t start_time; /* In milliseconds - this wraps fairly often */
137 int64_t first_pts; /* initial pts value */
138 int64_t cur_pts; /* current pts value from the stream in us */
139 int64_t cur_frame_duration; /* duration of the current frame in us */
140 int cur_frame_bytes; /* output frame size, needed to compute
141 the time at which we send each
143 int pts_stream_index; /* stream we choose as clock reference */
144 int64_t cur_clock; /* current clock reference value in us */
145 /* output format handling */
146 struct FFStream *stream;
147 /* -1 is invalid stream */
148 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
149 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
151 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
152 int last_packet_sent; /* true if last data packet was sent */
154 DataRateData datarate;
161 int is_packetized; /* if true, the stream is packetized */
162 int packet_stream_index; /* current stream for output in state machine */
164 /* RTSP state specific */
165 uint8_t *pb_buffer; /* XXX: use that in all the code */
167 int seq; /* RTSP sequence number */
169 /* RTP state specific */
170 enum RTSPLowerTransport rtp_protocol;
171 char session_id[32]; /* session id */
172 AVFormatContext *rtp_ctx[MAX_STREAMS];
174 /* RTP/UDP specific */
175 URLContext *rtp_handles[MAX_STREAMS];
177 /* RTP/TCP specific */
178 struct HTTPContext *rtsp_c;
179 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
182 /* each generated stream is described here */
186 STREAM_TYPE_REDIRECT,
189 enum IPAddressAction {
194 typedef struct IPAddressACL {
195 struct IPAddressACL *next;
196 enum IPAddressAction action;
197 /* These are in host order */
198 struct in_addr first;
202 /* description of each stream of the ffserver.conf file */
203 typedef struct FFStream {
204 enum StreamType stream_type;
205 char filename[1024]; /* stream filename */
206 struct FFStream *feed; /* feed we are using (can be null if
208 AVFormatParameters *ap_in; /* input parameters */
209 AVInputFormat *ifmt; /* if non NULL, force input format */
212 char dynamic_acl[1024];
214 int prebuffer; /* Number of millseconds early to start */
215 int64_t max_time; /* Number of milliseconds to run */
217 AVStream *streams[MAX_STREAMS];
218 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
219 char feed_filename[1024]; /* file name of the feed storage, or
220 input file name for a stream */
225 pid_t pid; /* Of ffmpeg process */
226 time_t pid_start; /* Of ffmpeg process */
228 struct FFStream *next;
229 unsigned bandwidth; /* bandwidth, in kbits/s */
232 /* multicast specific */
234 struct in_addr multicast_ip;
235 int multicast_port; /* first port used for multicast */
237 int loop; /* if true, send the stream in loops (only meaningful if file) */
240 int feed_opened; /* true if someone is writing to the feed */
241 int is_feed; /* true if it is a feed */
242 int readonly; /* True if writing is prohibited to the file */
243 int truncate; /* True if feeder connection truncate the feed file */
245 int64_t bytes_served;
246 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
247 int64_t feed_write_index; /* current write position in feed (it wraps around) */
248 int64_t feed_size; /* current size of feed */
249 struct FFStream *next_feed;
252 typedef struct FeedData {
253 long long data_count;
254 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
257 static struct sockaddr_in my_http_addr;
258 static struct sockaddr_in my_rtsp_addr;
260 static char logfilename[1024];
261 static HTTPContext *first_http_ctx;
262 static FFStream *first_feed; /* contains only feeds */
263 static FFStream *first_stream; /* contains all streams, including feeds */
265 static void new_connection(int server_fd, int is_rtsp);
266 static void close_connection(HTTPContext *c);
269 static int handle_connection(HTTPContext *c);
270 static int http_parse_request(HTTPContext *c);
271 static int http_send_data(HTTPContext *c);
272 static void compute_status(HTTPContext *c);
273 static int open_input_stream(HTTPContext *c, const char *info);
274 static int http_start_receive_data(HTTPContext *c);
275 static int http_receive_data(HTTPContext *c);
278 static int rtsp_parse_request(HTTPContext *c);
279 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
280 static void rtsp_cmd_options(HTTPContext *c, const char *url);
281 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
282 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
283 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
284 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
287 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
288 struct in_addr my_ip);
291 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
292 FFStream *stream, const char *session_id,
293 enum RTSPLowerTransport rtp_protocol);
294 static int rtp_new_av_stream(HTTPContext *c,
295 int stream_index, struct sockaddr_in *dest_addr,
296 HTTPContext *rtsp_c);
298 static const char *my_program_name;
299 static const char *my_program_dir;
301 static const char *config_filename = "/etc/ffserver.conf";
303 static int ffserver_debug;
304 static int ffserver_daemon;
305 static int no_launch;
306 static int need_to_start_children;
308 /* maximum number of simultaneous HTTP connections */
309 static unsigned int nb_max_http_connections = 2000;
310 static unsigned int nb_max_connections = 5;
311 static unsigned int nb_connections;
313 static uint64_t max_bandwidth = 1000;
314 static uint64_t current_bandwidth;
316 static int64_t cur_time; // Making this global saves on passing it around everywhere
318 static AVLFG random_state;
320 static FILE *logfile = NULL;
322 /* FIXME: make ffserver work with IPv6 */
323 /* resolve host with also IP address parsing */
324 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
327 if (!ff_inet_aton(hostname, sin_addr)) {
329 struct addrinfo *ai, *cur;
330 struct addrinfo hints;
331 memset(&hints, 0, sizeof(hints));
332 hints.ai_family = AF_INET;
333 if (getaddrinfo(hostname, NULL, &hints, &ai))
335 /* getaddrinfo returns a linked list of addrinfo structs.
336 * Even if we set ai_family = AF_INET above, make sure
337 * that the returned one actually is of the correct type. */
338 for (cur = ai; cur; cur = cur->ai_next) {
339 if (cur->ai_family == AF_INET) {
340 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
349 hp = gethostbyname(hostname);
352 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
358 static char *ctime1(char *buf2)
366 p = buf2 + strlen(p) - 1;
372 static void http_vlog(const char *fmt, va_list vargs)
374 static int print_prefix = 1;
379 fprintf(logfile, "%s ", buf);
381 print_prefix = strstr(fmt, "\n") != NULL;
382 vfprintf(logfile, fmt, vargs);
388 __attribute__ ((format (printf, 1, 2)))
390 static void http_log(const char *fmt, ...)
393 va_start(vargs, fmt);
394 http_vlog(fmt, vargs);
398 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
400 static int print_prefix = 1;
401 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
402 if (level > av_log_get_level())
404 if (print_prefix && avc)
405 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
406 print_prefix = strstr(fmt, "\n") != NULL;
407 http_vlog(fmt, vargs);
410 static void log_connection(HTTPContext *c)
415 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
416 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
417 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
420 static void update_datarate(DataRateData *drd, int64_t count)
422 if (!drd->time1 && !drd->count1) {
423 drd->time1 = drd->time2 = cur_time;
424 drd->count1 = drd->count2 = count;
425 } else if (cur_time - drd->time2 > 5000) {
426 drd->time1 = drd->time2;
427 drd->count1 = drd->count2;
428 drd->time2 = cur_time;
433 /* In bytes per second */
434 static int compute_datarate(DataRateData *drd, int64_t count)
436 if (cur_time == drd->time1)
439 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
443 static void start_children(FFStream *feed)
448 for (; feed; feed = feed->next) {
449 if (feed->child_argv && !feed->pid) {
450 feed->pid_start = time(0);
455 http_log("Unable to create children\n");
464 av_strlcpy(pathname, my_program_name, sizeof(pathname));
466 slash = strrchr(pathname, '/');
471 strcpy(slash, "ffmpeg");
473 http_log("Launch commandline: ");
474 http_log("%s ", pathname);
475 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
476 http_log("%s ", feed->child_argv[i]);
479 for (i = 3; i < 256; i++)
482 if (!ffserver_debug) {
483 i = open("/dev/null", O_RDWR);
492 /* This is needed to make relative pathnames work */
493 chdir(my_program_dir);
495 signal(SIGPIPE, SIG_DFL);
497 execvp(pathname, feed->child_argv);
505 /* open a listening socket */
506 static int socket_open_listen(struct sockaddr_in *my_addr)
510 server_fd = socket(AF_INET,SOCK_STREAM,0);
517 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
519 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
521 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
523 closesocket(server_fd);
527 if (listen (server_fd, 5) < 0) {
529 closesocket(server_fd);
532 ff_socket_nonblock(server_fd, 1);
537 /* start all multicast streams */
538 static void start_multicast(void)
543 struct sockaddr_in dest_addr;
544 int default_port, stream_index;
547 for(stream = first_stream; stream != NULL; stream = stream->next) {
548 if (stream->is_multicast) {
549 /* open the RTP connection */
550 snprintf(session_id, sizeof(session_id), "%08x%08x",
551 av_lfg_get(&random_state), av_lfg_get(&random_state));
553 /* choose a port if none given */
554 if (stream->multicast_port == 0) {
555 stream->multicast_port = default_port;
559 dest_addr.sin_family = AF_INET;
560 dest_addr.sin_addr = stream->multicast_ip;
561 dest_addr.sin_port = htons(stream->multicast_port);
563 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
564 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
568 if (open_input_stream(rtp_c, "") < 0) {
569 http_log("Could not open input stream for stream '%s'\n",
574 /* open each RTP stream */
575 for(stream_index = 0; stream_index < stream->nb_streams;
577 dest_addr.sin_port = htons(stream->multicast_port +
579 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
580 http_log("Could not open output stream '%s/streamid=%d'\n",
581 stream->filename, stream_index);
586 /* change state to send data */
587 rtp_c->state = HTTPSTATE_SEND_DATA;
592 /* main loop of the http server */
593 static int http_server(void)
595 int server_fd = 0, rtsp_server_fd = 0;
596 int ret, delay, delay1;
597 struct pollfd *poll_table, *poll_entry;
598 HTTPContext *c, *c_next;
600 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
601 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
605 if (my_http_addr.sin_port) {
606 server_fd = socket_open_listen(&my_http_addr);
611 if (my_rtsp_addr.sin_port) {
612 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
613 if (rtsp_server_fd < 0)
617 if (!rtsp_server_fd && !server_fd) {
618 http_log("HTTP and RTSP disabled.\n");
622 http_log("FFserver started.\n");
624 start_children(first_feed);
629 poll_entry = poll_table;
631 poll_entry->fd = server_fd;
632 poll_entry->events = POLLIN;
635 if (rtsp_server_fd) {
636 poll_entry->fd = rtsp_server_fd;
637 poll_entry->events = POLLIN;
641 /* wait for events on each HTTP handle */
648 case HTTPSTATE_SEND_HEADER:
649 case RTSPSTATE_SEND_REPLY:
650 case RTSPSTATE_SEND_PACKET:
651 c->poll_entry = poll_entry;
653 poll_entry->events = POLLOUT;
656 case HTTPSTATE_SEND_DATA_HEADER:
657 case HTTPSTATE_SEND_DATA:
658 case HTTPSTATE_SEND_DATA_TRAILER:
659 if (!c->is_packetized) {
660 /* for TCP, we output as much as we can (may need to put a limit) */
661 c->poll_entry = poll_entry;
663 poll_entry->events = POLLOUT;
666 /* when ffserver is doing the timing, we work by
667 looking at which packet need to be sent every
669 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
674 case HTTPSTATE_WAIT_REQUEST:
675 case HTTPSTATE_RECEIVE_DATA:
676 case HTTPSTATE_WAIT_FEED:
677 case RTSPSTATE_WAIT_REQUEST:
678 /* need to catch errors */
679 c->poll_entry = poll_entry;
681 poll_entry->events = POLLIN;/* Maybe this will work */
685 c->poll_entry = NULL;
691 /* wait for an event on one connection. We poll at least every
692 second to handle timeouts */
694 ret = poll(poll_table, poll_entry - poll_table, delay);
695 if (ret < 0 && ff_neterrno() != FF_NETERROR(EAGAIN) &&
696 ff_neterrno() != FF_NETERROR(EINTR))
700 cur_time = av_gettime() / 1000;
702 if (need_to_start_children) {
703 need_to_start_children = 0;
704 start_children(first_feed);
707 /* now handle the events */
708 for(c = first_http_ctx; c != NULL; c = c_next) {
710 if (handle_connection(c) < 0) {
711 /* close and free the connection */
717 poll_entry = poll_table;
719 /* new HTTP connection request ? */
720 if (poll_entry->revents & POLLIN)
721 new_connection(server_fd, 0);
724 if (rtsp_server_fd) {
725 /* new RTSP connection request ? */
726 if (poll_entry->revents & POLLIN)
727 new_connection(rtsp_server_fd, 1);
732 /* start waiting for a new HTTP/RTSP request */
733 static void start_wait_request(HTTPContext *c, int is_rtsp)
735 c->buffer_ptr = c->buffer;
736 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
739 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
740 c->state = RTSPSTATE_WAIT_REQUEST;
742 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
743 c->state = HTTPSTATE_WAIT_REQUEST;
747 static void http_send_too_busy_reply(int fd)
750 int len = snprintf(buffer, sizeof(buffer),
751 "HTTP/1.0 503 Server too busy\r\n"
752 "Content-type: text/html\r\n"
754 "<html><head><title>Too busy</title></head><body>\r\n"
755 "<p>The server is too busy to serve your request at this time.</p>\r\n"
756 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
757 "</body></html>\r\n",
758 nb_connections, nb_max_connections);
759 send(fd, buffer, len, 0);
763 static void new_connection(int server_fd, int is_rtsp)
765 struct sockaddr_in from_addr;
767 HTTPContext *c = NULL;
769 len = sizeof(from_addr);
770 fd = accept(server_fd, (struct sockaddr *)&from_addr,
773 http_log("error during accept %s\n", strerror(errno));
776 ff_socket_nonblock(fd, 1);
778 if (nb_connections >= nb_max_connections) {
779 http_send_too_busy_reply(fd);
783 /* add a new connection */
784 c = av_mallocz(sizeof(HTTPContext));
789 c->poll_entry = NULL;
790 c->from_addr = from_addr;
791 c->buffer_size = IOBUFFER_INIT_SIZE;
792 c->buffer = av_malloc(c->buffer_size);
796 c->next = first_http_ctx;
800 start_wait_request(c, is_rtsp);
812 static void close_connection(HTTPContext *c)
814 HTTPContext **cp, *c1;
816 AVFormatContext *ctx;
820 /* remove connection from list */
821 cp = &first_http_ctx;
822 while ((*cp) != NULL) {
830 /* remove references, if any (XXX: do it faster) */
831 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
836 /* remove connection associated resources */
840 /* close each frame parser */
841 for(i=0;i<c->fmt_in->nb_streams;i++) {
842 st = c->fmt_in->streams[i];
843 if (st->codec->codec)
844 avcodec_close(st->codec);
846 av_close_input_file(c->fmt_in);
849 /* free RTP output streams if any */
852 nb_streams = c->stream->nb_streams;
854 for(i=0;i<nb_streams;i++) {
857 av_write_trailer(ctx);
858 av_metadata_free(&ctx->metadata);
859 av_free(ctx->streams[0]);
862 h = c->rtp_handles[i];
869 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
872 if (url_open_dyn_buf(&ctx->pb) >= 0) {
873 av_write_trailer(ctx);
874 av_freep(&c->pb_buffer);
875 url_close_dyn_buf(ctx->pb, &c->pb_buffer);
880 for(i=0; i<ctx->nb_streams; i++)
881 av_free(ctx->streams[i]);
883 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
884 current_bandwidth -= c->stream->bandwidth;
886 /* signal that there is no feed if we are the feeder socket */
887 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
888 c->stream->feed_opened = 0;
892 av_freep(&c->pb_buffer);
893 av_freep(&c->packet_buffer);
899 static int handle_connection(HTTPContext *c)
904 case HTTPSTATE_WAIT_REQUEST:
905 case RTSPSTATE_WAIT_REQUEST:
907 if ((c->timeout - cur_time) < 0)
909 if (c->poll_entry->revents & (POLLERR | POLLHUP))
912 /* no need to read if no events */
913 if (!(c->poll_entry->revents & POLLIN))
917 len = recv(c->fd, c->buffer_ptr, 1, 0);
919 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
920 ff_neterrno() != FF_NETERROR(EINTR))
922 } else if (len == 0) {
925 /* search for end of request. */
927 c->buffer_ptr += len;
929 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
930 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
931 /* request found : parse it and reply */
932 if (c->state == HTTPSTATE_WAIT_REQUEST) {
933 ret = http_parse_request(c);
935 ret = rtsp_parse_request(c);
939 } else if (ptr >= c->buffer_end) {
940 /* request too long: cannot do anything */
942 } else goto read_loop;
946 case HTTPSTATE_SEND_HEADER:
947 if (c->poll_entry->revents & (POLLERR | POLLHUP))
950 /* no need to write if no events */
951 if (!(c->poll_entry->revents & POLLOUT))
953 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
955 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
956 ff_neterrno() != FF_NETERROR(EINTR)) {
957 /* error : close connection */
958 av_freep(&c->pb_buffer);
962 c->buffer_ptr += len;
964 c->stream->bytes_served += len;
965 c->data_count += len;
966 if (c->buffer_ptr >= c->buffer_end) {
967 av_freep(&c->pb_buffer);
971 /* all the buffer was sent : synchronize to the incoming stream */
972 c->state = HTTPSTATE_SEND_DATA_HEADER;
973 c->buffer_ptr = c->buffer_end = c->buffer;
978 case HTTPSTATE_SEND_DATA:
979 case HTTPSTATE_SEND_DATA_HEADER:
980 case HTTPSTATE_SEND_DATA_TRAILER:
981 /* for packetized output, we consider we can always write (the
982 input streams sets the speed). It may be better to verify
983 that we do not rely too much on the kernel queues */
984 if (!c->is_packetized) {
985 if (c->poll_entry->revents & (POLLERR | POLLHUP))
988 /* no need to read if no events */
989 if (!(c->poll_entry->revents & POLLOUT))
992 if (http_send_data(c) < 0)
994 /* close connection if trailer sent */
995 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
998 case HTTPSTATE_RECEIVE_DATA:
999 /* no need to read if no events */
1000 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1002 if (!(c->poll_entry->revents & POLLIN))
1004 if (http_receive_data(c) < 0)
1007 case HTTPSTATE_WAIT_FEED:
1008 /* no need to read if no events */
1009 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1012 /* nothing to do, we'll be waken up by incoming feed packets */
1015 case RTSPSTATE_SEND_REPLY:
1016 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1017 av_freep(&c->pb_buffer);
1020 /* no need to write if no events */
1021 if (!(c->poll_entry->revents & POLLOUT))
1023 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1025 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
1026 ff_neterrno() != FF_NETERROR(EINTR)) {
1027 /* error : close connection */
1028 av_freep(&c->pb_buffer);
1032 c->buffer_ptr += len;
1033 c->data_count += len;
1034 if (c->buffer_ptr >= c->buffer_end) {
1035 /* all the buffer was sent : wait for a new request */
1036 av_freep(&c->pb_buffer);
1037 start_wait_request(c, 1);
1041 case RTSPSTATE_SEND_PACKET:
1042 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1043 av_freep(&c->packet_buffer);
1046 /* no need to write if no events */
1047 if (!(c->poll_entry->revents & POLLOUT))
1049 len = send(c->fd, c->packet_buffer_ptr,
1050 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1052 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
1053 ff_neterrno() != FF_NETERROR(EINTR)) {
1054 /* error : close connection */
1055 av_freep(&c->packet_buffer);
1059 c->packet_buffer_ptr += len;
1060 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1061 /* all the buffer was sent : wait for a new request */
1062 av_freep(&c->packet_buffer);
1063 c->state = RTSPSTATE_WAIT_REQUEST;
1067 case HTTPSTATE_READY:
1076 static int extract_rates(char *rates, int ratelen, const char *request)
1080 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1081 if (strncasecmp(p, "Pragma:", 7) == 0) {
1082 const char *q = p + 7;
1084 while (*q && *q != '\n' && isspace(*q))
1087 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1093 memset(rates, 0xff, ratelen);
1096 while (*q && *q != '\n' && *q != ':')
1099 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1103 if (stream_no < ratelen && stream_no >= 0)
1104 rates[stream_no] = rate_no;
1106 while (*q && *q != '\n' && !isspace(*q))
1113 p = strchr(p, '\n');
1123 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1126 int best_bitrate = 100000000;
1129 for (i = 0; i < feed->nb_streams; i++) {
1130 AVCodecContext *feed_codec = feed->streams[i]->codec;
1132 if (feed_codec->codec_id != codec->codec_id ||
1133 feed_codec->sample_rate != codec->sample_rate ||
1134 feed_codec->width != codec->width ||
1135 feed_codec->height != codec->height)
1138 /* Potential stream */
1140 /* We want the fastest stream less than bit_rate, or the slowest
1141 * faster than bit_rate
1144 if (feed_codec->bit_rate <= bit_rate) {
1145 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1146 best_bitrate = feed_codec->bit_rate;
1150 if (feed_codec->bit_rate < best_bitrate) {
1151 best_bitrate = feed_codec->bit_rate;
1160 static int modify_current_stream(HTTPContext *c, char *rates)
1163 FFStream *req = c->stream;
1164 int action_required = 0;
1166 /* Not much we can do for a feed */
1170 for (i = 0; i < req->nb_streams; i++) {
1171 AVCodecContext *codec = req->streams[i]->codec;
1175 c->switch_feed_streams[i] = req->feed_streams[i];
1178 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1181 /* Wants off or slow */
1182 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1184 /* This doesn't work well when it turns off the only stream! */
1185 c->switch_feed_streams[i] = -2;
1186 c->feed_streams[i] = -2;
1191 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1192 action_required = 1;
1195 return action_required;
1198 /* XXX: factorize in utils.c ? */
1199 /* XXX: take care with different space meaning */
1200 static void skip_spaces(const char **pp)
1204 while (*p == ' ' || *p == '\t')
1209 static void get_word(char *buf, int buf_size, const char **pp)
1217 while (!isspace(*p) && *p != '\0') {
1218 if ((q - buf) < buf_size - 1)
1227 static void get_arg(char *buf, int buf_size, const char **pp)
1234 while (isspace(*p)) p++;
1237 if (*p == '\"' || *p == '\'')
1249 if ((q - buf) < buf_size - 1)
1254 if (quote && *p == quote)
1259 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1260 const char *p, const char *filename, int line_num)
1266 get_arg(arg, sizeof(arg), &p);
1267 if (strcasecmp(arg, "allow") == 0)
1268 acl.action = IP_ALLOW;
1269 else if (strcasecmp(arg, "deny") == 0)
1270 acl.action = IP_DENY;
1272 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1273 filename, line_num, arg);
1277 get_arg(arg, sizeof(arg), &p);
1279 if (resolve_host(&acl.first, arg) != 0) {
1280 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1281 filename, line_num, arg);
1284 acl.last = acl.first;
1286 get_arg(arg, sizeof(arg), &p);
1289 if (resolve_host(&acl.last, arg) != 0) {
1290 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1291 filename, line_num, arg);
1297 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1298 IPAddressACL **naclp = 0;
1304 naclp = &stream->acl;
1310 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1311 filename, line_num);
1317 naclp = &(*naclp)->next;
1325 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1330 IPAddressACL *acl = NULL;
1334 f = fopen(stream->dynamic_acl, "r");
1336 perror(stream->dynamic_acl);
1340 acl = av_mallocz(sizeof(IPAddressACL));
1344 if (fgets(line, sizeof(line), f) == NULL)
1350 if (*p == '\0' || *p == '#')
1352 get_arg(cmd, sizeof(cmd), &p);
1354 if (!strcasecmp(cmd, "ACL"))
1355 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1362 static void free_acl_list(IPAddressACL *in_acl)
1364 IPAddressACL *pacl,*pacl2;
1374 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1376 enum IPAddressAction last_action = IP_DENY;
1378 struct in_addr *src = &c->from_addr.sin_addr;
1379 unsigned long src_addr = src->s_addr;
1381 for (acl = in_acl; acl; acl = acl->next) {
1382 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1383 return (acl->action == IP_ALLOW) ? 1 : 0;
1384 last_action = acl->action;
1387 /* Nothing matched, so return not the last action */
1388 return (last_action == IP_DENY) ? 1 : 0;
1391 static int validate_acl(FFStream *stream, HTTPContext *c)
1397 /* if stream->acl is null validate_acl_list will return 1 */
1398 ret = validate_acl_list(stream->acl, c);
1400 if (stream->dynamic_acl[0]) {
1401 acl = parse_dynamic_acl(stream, c);
1403 ret = validate_acl_list(acl, c);
1411 /* compute the real filename of a file by matching it without its
1412 extensions to all the stream filenames */
1413 static void compute_real_filename(char *filename, int max_size)
1420 /* compute filename by matching without the file extensions */
1421 av_strlcpy(file1, filename, sizeof(file1));
1422 p = strrchr(file1, '.');
1425 for(stream = first_stream; stream != NULL; stream = stream->next) {
1426 av_strlcpy(file2, stream->filename, sizeof(file2));
1427 p = strrchr(file2, '.');
1430 if (!strcmp(file1, file2)) {
1431 av_strlcpy(filename, stream->filename, max_size);
1446 /* parse http request and prepare header */
1447 static int http_parse_request(HTTPContext *c)
1450 enum RedirType redir_type;
1452 char info[1024], filename[1024];
1456 const char *mime_type;
1460 char *useragent = 0;
1463 get_word(cmd, sizeof(cmd), (const char **)&p);
1464 av_strlcpy(c->method, cmd, sizeof(c->method));
1466 if (!strcmp(cmd, "GET"))
1468 else if (!strcmp(cmd, "POST"))
1473 get_word(url, sizeof(url), (const char **)&p);
1474 av_strlcpy(c->url, url, sizeof(c->url));
1476 get_word(protocol, sizeof(protocol), (const char **)&p);
1477 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1480 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1483 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1485 /* find the filename and the optional info string in the request */
1486 p = strchr(url, '?');
1488 av_strlcpy(info, p, sizeof(info));
1493 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1495 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1496 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1498 if (*useragent && *useragent != '\n' && isspace(*useragent))
1502 p = strchr(p, '\n');
1509 redir_type = REDIR_NONE;
1510 if (av_match_ext(filename, "asx")) {
1511 redir_type = REDIR_ASX;
1512 filename[strlen(filename)-1] = 'f';
1513 } else if (av_match_ext(filename, "asf") &&
1514 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1515 /* if this isn't WMP or lookalike, return the redirector file */
1516 redir_type = REDIR_ASF;
1517 } else if (av_match_ext(filename, "rpm,ram")) {
1518 redir_type = REDIR_RAM;
1519 strcpy(filename + strlen(filename)-2, "m");
1520 } else if (av_match_ext(filename, "rtsp")) {
1521 redir_type = REDIR_RTSP;
1522 compute_real_filename(filename, sizeof(filename) - 1);
1523 } else if (av_match_ext(filename, "sdp")) {
1524 redir_type = REDIR_SDP;
1525 compute_real_filename(filename, sizeof(filename) - 1);
1528 // "redirect" / request to index.html
1529 if (!strlen(filename))
1530 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1532 stream = first_stream;
1533 while (stream != NULL) {
1534 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1536 stream = stream->next;
1538 if (stream == NULL) {
1539 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1540 http_log("File '%s' not found\n", url);
1545 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1546 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1548 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1549 c->http_error = 301;
1551 q += snprintf(q, c->buffer_size,
1552 "HTTP/1.0 301 Moved\r\n"
1554 "Content-type: text/html\r\n"
1556 "<html><head><title>Moved</title></head><body>\r\n"
1557 "You should be <a href=\"%s\">redirected</a>.\r\n"
1558 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1559 /* prepare output buffer */
1560 c->buffer_ptr = c->buffer;
1562 c->state = HTTPSTATE_SEND_HEADER;
1566 /* If this is WMP, get the rate information */
1567 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1568 if (modify_current_stream(c, ratebuf)) {
1569 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1570 if (c->switch_feed_streams[i] >= 0)
1571 c->switch_feed_streams[i] = -1;
1576 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1577 current_bandwidth += stream->bandwidth;
1579 /* If already streaming this feed, do not let start another feeder. */
1580 if (stream->feed_opened) {
1581 snprintf(msg, sizeof(msg), "This feed is already being received.");
1582 http_log("Feed '%s' already being received\n", stream->feed_filename);
1586 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1587 c->http_error = 503;
1589 q += snprintf(q, c->buffer_size,
1590 "HTTP/1.0 503 Server too busy\r\n"
1591 "Content-type: text/html\r\n"
1593 "<html><head><title>Too busy</title></head><body>\r\n"
1594 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1595 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1596 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1597 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1598 /* prepare output buffer */
1599 c->buffer_ptr = c->buffer;
1601 c->state = HTTPSTATE_SEND_HEADER;
1605 if (redir_type != REDIR_NONE) {
1608 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1609 if (strncasecmp(p, "Host:", 5) == 0) {
1613 p = strchr(p, '\n');
1624 while (isspace(*hostinfo))
1627 eoh = strchr(hostinfo, '\n');
1629 if (eoh[-1] == '\r')
1632 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1633 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1634 hostbuf[eoh - hostinfo] = 0;
1636 c->http_error = 200;
1638 switch(redir_type) {
1640 q += snprintf(q, c->buffer_size,
1641 "HTTP/1.0 200 ASX Follows\r\n"
1642 "Content-type: video/x-ms-asf\r\n"
1644 "<ASX Version=\"3\">\r\n"
1645 //"<!-- Autogenerated by ffserver -->\r\n"
1646 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1647 "</ASX>\r\n", hostbuf, filename, info);
1650 q += snprintf(q, c->buffer_size,
1651 "HTTP/1.0 200 RAM Follows\r\n"
1652 "Content-type: audio/x-pn-realaudio\r\n"
1654 "# Autogenerated by ffserver\r\n"
1655 "http://%s/%s%s\r\n", hostbuf, filename, info);
1658 q += snprintf(q, c->buffer_size,
1659 "HTTP/1.0 200 ASF Redirect follows\r\n"
1660 "Content-type: video/x-ms-asf\r\n"
1663 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1667 char hostname[256], *p;
1668 /* extract only hostname */
1669 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1670 p = strrchr(hostname, ':');
1673 q += snprintf(q, c->buffer_size,
1674 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1675 /* XXX: incorrect mime type ? */
1676 "Content-type: application/x-rtsp\r\n"
1678 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1684 int sdp_data_size, len;
1685 struct sockaddr_in my_addr;
1687 q += snprintf(q, c->buffer_size,
1688 "HTTP/1.0 200 OK\r\n"
1689 "Content-type: application/sdp\r\n"
1692 len = sizeof(my_addr);
1693 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1695 /* XXX: should use a dynamic buffer */
1696 sdp_data_size = prepare_sdp_description(stream,
1699 if (sdp_data_size > 0) {
1700 memcpy(q, sdp_data, sdp_data_size);
1712 /* prepare output buffer */
1713 c->buffer_ptr = c->buffer;
1715 c->state = HTTPSTATE_SEND_HEADER;
1721 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1725 stream->conns_served++;
1727 /* XXX: add there authenticate and IP match */
1730 /* if post, it means a feed is being sent */
1731 if (!stream->is_feed) {
1732 /* However it might be a status report from WMP! Let us log the
1733 * data as it might come in handy one day. */
1737 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1738 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1742 if (strncasecmp(p, "Pragma: client-id=", 18) == 0)
1743 client_id = strtol(p + 18, 0, 10);
1744 p = strchr(p, '\n');
1752 char *eol = strchr(logline, '\n');
1757 if (eol[-1] == '\r')
1759 http_log("%.*s\n", (int) (eol - logline), logline);
1760 c->suppress_log = 1;
1765 http_log("\nGot request:\n%s\n", c->buffer);
1768 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1771 /* Now we have to find the client_id */
1772 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1773 if (wmpc->wmp_client_id == client_id)
1777 if (wmpc && modify_current_stream(wmpc, ratebuf))
1778 wmpc->switch_pending = 1;
1781 snprintf(msg, sizeof(msg), "POST command not handled");
1785 if (http_start_receive_data(c) < 0) {
1786 snprintf(msg, sizeof(msg), "could not open feed");
1790 c->state = HTTPSTATE_RECEIVE_DATA;
1795 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1796 http_log("\nGot request:\n%s\n", c->buffer);
1799 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1802 /* open input stream */
1803 if (open_input_stream(c, info) < 0) {
1804 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1808 /* prepare http header */
1810 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1811 mime_type = c->stream->fmt->mime_type;
1813 mime_type = "application/x-octet-stream";
1814 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
1816 /* for asf, we need extra headers */
1817 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1818 /* Need to allocate a client id */
1820 c->wmp_client_id = av_lfg_get(&random_state);
1822 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
1824 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1825 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1827 /* prepare output buffer */
1829 c->buffer_ptr = c->buffer;
1831 c->state = HTTPSTATE_SEND_HEADER;
1834 c->http_error = 404;
1836 q += snprintf(q, c->buffer_size,
1837 "HTTP/1.0 404 Not Found\r\n"
1838 "Content-type: text/html\r\n"
1841 "<head><title>404 Not Found</title></head>\n"
1844 /* prepare output buffer */
1845 c->buffer_ptr = c->buffer;
1847 c->state = HTTPSTATE_SEND_HEADER;
1851 c->http_error = 200; /* horrible : we use this value to avoid
1852 going to the send data state */
1853 c->state = HTTPSTATE_SEND_HEADER;
1857 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1859 static const char *suffix = " kMGTP";
1862 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1864 url_fprintf(pb, "%"PRId64"%c", count, *s);
1867 static void compute_status(HTTPContext *c)
1876 if (url_open_dyn_buf(&pb) < 0) {
1877 /* XXX: return an error ? */
1878 c->buffer_ptr = c->buffer;
1879 c->buffer_end = c->buffer;
1883 url_fprintf(pb, "HTTP/1.0 200 OK\r\n");
1884 url_fprintf(pb, "Content-type: %s\r\n", "text/html");
1885 url_fprintf(pb, "Pragma: no-cache\r\n");
1886 url_fprintf(pb, "\r\n");
1888 url_fprintf(pb, "<html><head><title>%s Status</title>\n", program_name);
1889 if (c->stream->feed_filename[0])
1890 url_fprintf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1891 url_fprintf(pb, "</head>\n<body>");
1892 url_fprintf(pb, "<h1>%s Status</h1>\n", program_name);
1894 url_fprintf(pb, "<h2>Available Streams</h2>\n");
1895 url_fprintf(pb, "<table cellspacing=0 cellpadding=4>\n");
1896 url_fprintf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>kbits/s<th align=left>Video<br>kbits/s<th><br>Codec<th align=left>Audio<br>kbits/s<th><br>Codec<th align=left valign=top>Feed\n");
1897 stream = first_stream;
1898 while (stream != NULL) {
1899 char sfilename[1024];
1902 if (stream->feed != stream) {
1903 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1904 eosf = sfilename + strlen(sfilename);
1905 if (eosf - sfilename >= 4) {
1906 if (strcmp(eosf - 4, ".asf") == 0)
1907 strcpy(eosf - 4, ".asx");
1908 else if (strcmp(eosf - 3, ".rm") == 0)
1909 strcpy(eosf - 3, ".ram");
1910 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1911 /* generate a sample RTSP director if
1912 unicast. Generate an SDP redirector if
1914 eosf = strrchr(sfilename, '.');
1916 eosf = sfilename + strlen(sfilename);
1917 if (stream->is_multicast)
1918 strcpy(eosf, ".sdp");
1920 strcpy(eosf, ".rtsp");
1924 url_fprintf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1925 sfilename, stream->filename);
1926 url_fprintf(pb, "<td align=right> %d <td align=right> ",
1927 stream->conns_served);
1928 fmt_bytecount(pb, stream->bytes_served);
1929 switch(stream->stream_type) {
1930 case STREAM_TYPE_LIVE: {
1931 int audio_bit_rate = 0;
1932 int video_bit_rate = 0;
1933 const char *audio_codec_name = "";
1934 const char *video_codec_name = "";
1935 const char *audio_codec_name_extra = "";
1936 const char *video_codec_name_extra = "";
1938 for(i=0;i<stream->nb_streams;i++) {
1939 AVStream *st = stream->streams[i];
1940 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1941 switch(st->codec->codec_type) {
1942 case AVMEDIA_TYPE_AUDIO:
1943 audio_bit_rate += st->codec->bit_rate;
1945 if (*audio_codec_name)
1946 audio_codec_name_extra = "...";
1947 audio_codec_name = codec->name;
1950 case AVMEDIA_TYPE_VIDEO:
1951 video_bit_rate += st->codec->bit_rate;
1953 if (*video_codec_name)
1954 video_codec_name_extra = "...";
1955 video_codec_name = codec->name;
1958 case AVMEDIA_TYPE_DATA:
1959 video_bit_rate += st->codec->bit_rate;
1965 url_fprintf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s",
1968 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1969 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
1971 url_fprintf(pb, "<td>%s", stream->feed->filename);
1973 url_fprintf(pb, "<td>%s", stream->feed_filename);
1974 url_fprintf(pb, "\n");
1978 url_fprintf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
1982 stream = stream->next;
1984 url_fprintf(pb, "</table>\n");
1986 stream = first_stream;
1987 while (stream != NULL) {
1988 if (stream->feed == stream) {
1989 url_fprintf(pb, "<h2>Feed %s</h2>", stream->filename);
1991 url_fprintf(pb, "Running as pid %d.\n", stream->pid);
1993 #if defined(linux) && !defined(CONFIG_NOCUTILS)
1998 /* This is somewhat linux specific I guess */
1999 snprintf(ps_cmd, sizeof(ps_cmd),
2000 "ps -o \"%%cpu,cputime\" --no-headers %d",
2003 pid_stat = popen(ps_cmd, "r");
2008 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2010 url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2018 url_fprintf(pb, "<p>");
2020 url_fprintf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
2022 for (i = 0; i < stream->nb_streams; i++) {
2023 AVStream *st = stream->streams[i];
2024 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2025 const char *type = "unknown";
2026 char parameters[64];
2030 switch(st->codec->codec_type) {
2031 case AVMEDIA_TYPE_AUDIO:
2033 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2035 case AVMEDIA_TYPE_VIDEO:
2037 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2038 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2043 url_fprintf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2044 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2046 url_fprintf(pb, "</table>\n");
2049 stream = stream->next;
2052 /* connection status */
2053 url_fprintf(pb, "<h2>Connection Status</h2>\n");
2055 url_fprintf(pb, "Number of connections: %d / %d<br>\n",
2056 nb_connections, nb_max_connections);
2058 url_fprintf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2059 current_bandwidth, max_bandwidth);
2061 url_fprintf(pb, "<table>\n");
2062 url_fprintf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
2063 c1 = first_http_ctx;
2065 while (c1 != NULL) {
2071 for (j = 0; j < c1->stream->nb_streams; j++) {
2072 if (!c1->stream->feed)
2073 bitrate += c1->stream->streams[j]->codec->bit_rate;
2074 else if (c1->feed_streams[j] >= 0)
2075 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2080 p = inet_ntoa(c1->from_addr.sin_addr);
2081 url_fprintf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2083 c1->stream ? c1->stream->filename : "",
2084 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2087 http_state[c1->state]);
2088 fmt_bytecount(pb, bitrate);
2089 url_fprintf(pb, "<td align=right>");
2090 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2091 url_fprintf(pb, "<td align=right>");
2092 fmt_bytecount(pb, c1->data_count);
2093 url_fprintf(pb, "\n");
2096 url_fprintf(pb, "</table>\n");
2101 url_fprintf(pb, "<hr size=1 noshade>Generated at %s", p);
2102 url_fprintf(pb, "</body>\n</html>\n");
2104 len = url_close_dyn_buf(pb, &c->pb_buffer);
2105 c->buffer_ptr = c->pb_buffer;
2106 c->buffer_end = c->pb_buffer + len;
2109 /* check if the parser needs to be opened for stream i */
2110 static void open_parser(AVFormatContext *s, int i)
2112 AVStream *st = s->streams[i];
2115 if (!st->codec->codec) {
2116 codec = avcodec_find_decoder(st->codec->codec_id);
2117 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
2118 st->codec->parse_only = 1;
2119 if (avcodec_open(st->codec, codec) < 0)
2120 st->codec->parse_only = 0;
2125 static int open_input_stream(HTTPContext *c, const char *info)
2128 char input_filename[1024];
2130 int buf_size, i, ret;
2133 /* find file name */
2134 if (c->stream->feed) {
2135 strcpy(input_filename, c->stream->feed->feed_filename);
2136 buf_size = FFM_PACKET_SIZE;
2137 /* compute position (absolute time) */
2138 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2139 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2141 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2142 int prebuffer = strtol(buf, 0, 10);
2143 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2145 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2147 strcpy(input_filename, c->stream->feed_filename);
2149 /* compute position (relative time) */
2150 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2151 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2156 if (input_filename[0] == '\0')
2160 if ((ret = av_open_input_file(&s, input_filename, c->stream->ifmt,
2161 buf_size, c->stream->ap_in)) < 0) {
2162 http_log("could not open %s: %d\n", input_filename, ret);
2165 s->flags |= AVFMT_FLAG_GENPTS;
2167 if (strcmp(s->iformat->name, "ffm") && av_find_stream_info(c->fmt_in) < 0) {
2168 http_log("Could not find stream info '%s'\n", input_filename);
2169 av_close_input_file(s);
2173 /* open each parser */
2174 for(i=0;i<s->nb_streams;i++)
2177 /* choose stream as clock source (we favorize video stream if
2178 present) for packet sending */
2179 c->pts_stream_index = 0;
2180 for(i=0;i<c->stream->nb_streams;i++) {
2181 if (c->pts_stream_index == 0 &&
2182 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2183 c->pts_stream_index = i;
2188 if (c->fmt_in->iformat->read_seek)
2189 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2191 /* set the start time (needed for maxtime and RTP packet timing) */
2192 c->start_time = cur_time;
2193 c->first_pts = AV_NOPTS_VALUE;
2197 /* return the server clock (in us) */
2198 static int64_t get_server_clock(HTTPContext *c)
2200 /* compute current pts value from system time */
2201 return (cur_time - c->start_time) * 1000;
2204 /* return the estimated time at which the current packet must be sent
2206 static int64_t get_packet_send_clock(HTTPContext *c)
2208 int bytes_left, bytes_sent, frame_bytes;
2210 frame_bytes = c->cur_frame_bytes;
2211 if (frame_bytes <= 0)
2214 bytes_left = c->buffer_end - c->buffer_ptr;
2215 bytes_sent = frame_bytes - bytes_left;
2216 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2221 static int http_prepare_data(HTTPContext *c)
2224 AVFormatContext *ctx;
2226 av_freep(&c->pb_buffer);
2228 case HTTPSTATE_SEND_DATA_HEADER:
2229 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2230 av_metadata_set2(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2231 av_metadata_set2(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2232 av_metadata_set2(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2233 av_metadata_set2(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2235 for(i=0;i<c->stream->nb_streams;i++) {
2238 st = av_mallocz(sizeof(AVStream));
2239 c->fmt_ctx.streams[i] = st;
2240 /* if file or feed, then just take streams from FFStream struct */
2241 if (!c->stream->feed ||
2242 c->stream->feed == c->stream)
2243 src = c->stream->streams[i];
2245 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2249 st->codec->frame_number = 0; /* XXX: should be done in
2250 AVStream, not in codec */
2252 /* set output format parameters */
2253 c->fmt_ctx.oformat = c->stream->fmt;
2254 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2256 c->got_key_frame = 0;
2258 /* prepare header and save header data in a stream */
2259 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2260 /* XXX: potential leak */
2263 c->fmt_ctx.pb->is_streamed = 1;
2266 * HACK to avoid mpeg ps muxer to spit many underflow errors
2267 * Default value from FFmpeg
2268 * Try to set it use configuration option
2270 c->fmt_ctx.preload = (int)(0.5*AV_TIME_BASE);
2271 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2273 av_set_parameters(&c->fmt_ctx, NULL);
2274 if (av_write_header(&c->fmt_ctx) < 0) {
2275 http_log("Error writing output header\n");
2278 av_metadata_free(&c->fmt_ctx.metadata);
2280 len = url_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2281 c->buffer_ptr = c->pb_buffer;
2282 c->buffer_end = c->pb_buffer + len;
2284 c->state = HTTPSTATE_SEND_DATA;
2285 c->last_packet_sent = 0;
2287 case HTTPSTATE_SEND_DATA:
2288 /* find a new packet */
2289 /* read a packet from the input stream */
2290 if (c->stream->feed)
2291 ffm_set_write_index(c->fmt_in,
2292 c->stream->feed->feed_write_index,
2293 c->stream->feed->feed_size);
2295 if (c->stream->max_time &&
2296 c->stream->max_time + c->start_time - cur_time < 0)
2297 /* We have timed out */
2298 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2302 ret = av_read_frame(c->fmt_in, &pkt);
2304 if (c->stream->feed) {
2305 /* if coming from feed, it means we reached the end of the
2306 ffm file, so must wait for more data */
2307 c->state = HTTPSTATE_WAIT_FEED;
2308 return 1; /* state changed */
2309 } else if (ret == AVERROR(EAGAIN)) {
2310 /* input not ready, come back later */
2313 if (c->stream->loop) {
2314 av_close_input_file(c->fmt_in);
2316 if (open_input_stream(c, "") < 0)
2321 /* must send trailer now because eof or error */
2322 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2326 int source_index = pkt.stream_index;
2327 /* update first pts if needed */
2328 if (c->first_pts == AV_NOPTS_VALUE) {
2329 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2330 c->start_time = cur_time;
2332 /* send it to the appropriate stream */
2333 if (c->stream->feed) {
2334 /* if coming from a feed, select the right stream */
2335 if (c->switch_pending) {
2336 c->switch_pending = 0;
2337 for(i=0;i<c->stream->nb_streams;i++) {
2338 if (c->switch_feed_streams[i] == pkt.stream_index)
2339 if (pkt.flags & AV_PKT_FLAG_KEY)
2340 c->switch_feed_streams[i] = -1;
2341 if (c->switch_feed_streams[i] >= 0)
2342 c->switch_pending = 1;
2345 for(i=0;i<c->stream->nb_streams;i++) {
2346 if (c->stream->feed_streams[i] == pkt.stream_index) {
2347 AVStream *st = c->fmt_in->streams[source_index];
2348 pkt.stream_index = i;
2349 if (pkt.flags & AV_PKT_FLAG_KEY &&
2350 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2351 c->stream->nb_streams == 1))
2352 c->got_key_frame = 1;
2353 if (!c->stream->send_on_key || c->got_key_frame)
2358 AVCodecContext *codec;
2359 AVStream *ist, *ost;
2361 ist = c->fmt_in->streams[source_index];
2362 /* specific handling for RTP: we use several
2363 output stream (one for each RTP
2364 connection). XXX: need more abstract handling */
2365 if (c->is_packetized) {
2366 /* compute send time and duration */
2367 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2368 c->cur_pts -= c->first_pts;
2369 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2370 /* find RTP context */
2371 c->packet_stream_index = pkt.stream_index;
2372 ctx = c->rtp_ctx[c->packet_stream_index];
2374 av_free_packet(&pkt);
2377 codec = ctx->streams[0]->codec;
2378 /* only one stream per RTP connection */
2379 pkt.stream_index = 0;
2383 codec = ctx->streams[pkt.stream_index]->codec;
2386 if (c->is_packetized) {
2387 int max_packet_size;
2388 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2389 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2391 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
2392 ret = url_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2394 ret = url_open_dyn_buf(&ctx->pb);
2397 /* XXX: potential leak */
2400 ost = ctx->streams[pkt.stream_index];
2402 ctx->pb->is_streamed = 1;
2403 if (pkt.dts != AV_NOPTS_VALUE)
2404 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2405 if (pkt.pts != AV_NOPTS_VALUE)
2406 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2407 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2408 if (av_write_frame(ctx, &pkt) < 0) {
2409 http_log("Error writing frame to output\n");
2410 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2413 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2414 c->cur_frame_bytes = len;
2415 c->buffer_ptr = c->pb_buffer;
2416 c->buffer_end = c->pb_buffer + len;
2418 codec->frame_number++;
2420 av_free_packet(&pkt);
2424 av_free_packet(&pkt);
2429 case HTTPSTATE_SEND_DATA_TRAILER:
2430 /* last packet test ? */
2431 if (c->last_packet_sent || c->is_packetized)
2434 /* prepare header */
2435 if (url_open_dyn_buf(&ctx->pb) < 0) {
2436 /* XXX: potential leak */
2439 c->fmt_ctx.pb->is_streamed = 1;
2440 av_write_trailer(ctx);
2441 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2442 c->buffer_ptr = c->pb_buffer;
2443 c->buffer_end = c->pb_buffer + len;
2445 c->last_packet_sent = 1;
2451 /* should convert the format at the same time */
2452 /* send data starting at c->buffer_ptr to the output connection
2453 (either UDP or TCP connection) */
2454 static int http_send_data(HTTPContext *c)
2459 if (c->buffer_ptr >= c->buffer_end) {
2460 ret = http_prepare_data(c);
2464 /* state change requested */
2467 if (c->is_packetized) {
2468 /* RTP data output */
2469 len = c->buffer_end - c->buffer_ptr;
2471 /* fail safe - should never happen */
2473 c->buffer_ptr = c->buffer_end;
2476 len = (c->buffer_ptr[0] << 24) |
2477 (c->buffer_ptr[1] << 16) |
2478 (c->buffer_ptr[2] << 8) |
2480 if (len > (c->buffer_end - c->buffer_ptr))
2482 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2483 /* nothing to send yet: we can wait */
2487 c->data_count += len;
2488 update_datarate(&c->datarate, c->data_count);
2490 c->stream->bytes_served += len;
2492 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2493 /* RTP packets are sent inside the RTSP TCP connection */
2495 int interleaved_index, size;
2497 HTTPContext *rtsp_c;
2500 /* if no RTSP connection left, error */
2503 /* if already sending something, then wait. */
2504 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2506 if (url_open_dyn_buf(&pb) < 0)
2508 interleaved_index = c->packet_stream_index * 2;
2509 /* RTCP packets are sent at odd indexes */
2510 if (c->buffer_ptr[1] == 200)
2511 interleaved_index++;
2512 /* write RTSP TCP header */
2514 header[1] = interleaved_index;
2515 header[2] = len >> 8;
2517 avio_write(pb, header, 4);
2518 /* write RTP packet data */
2520 avio_write(pb, c->buffer_ptr, len);
2521 size = url_close_dyn_buf(pb, &c->packet_buffer);
2522 /* prepare asynchronous TCP sending */
2523 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2524 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2525 c->buffer_ptr += len;
2527 /* send everything we can NOW */
2528 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2529 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2531 rtsp_c->packet_buffer_ptr += len;
2532 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2533 /* if we could not send all the data, we will
2534 send it later, so a new state is needed to
2535 "lock" the RTSP TCP connection */
2536 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2539 /* all data has been sent */
2540 av_freep(&c->packet_buffer);
2542 /* send RTP packet directly in UDP */
2544 url_write(c->rtp_handles[c->packet_stream_index],
2545 c->buffer_ptr, len);
2546 c->buffer_ptr += len;
2547 /* here we continue as we can send several packets per 10 ms slot */
2550 /* TCP data output */
2551 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2553 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2554 ff_neterrno() != FF_NETERROR(EINTR))
2555 /* error : close connection */
2560 c->buffer_ptr += len;
2562 c->data_count += len;
2563 update_datarate(&c->datarate, c->data_count);
2565 c->stream->bytes_served += len;
2573 static int http_start_receive_data(HTTPContext *c)
2577 if (c->stream->feed_opened)
2580 /* Don't permit writing to this one */
2581 if (c->stream->readonly)
2585 fd = open(c->stream->feed_filename, O_RDWR);
2587 http_log("Error opening feeder file: %s\n", strerror(errno));
2592 if (c->stream->truncate) {
2593 /* truncate feed file */
2594 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2595 ftruncate(c->feed_fd, FFM_PACKET_SIZE);
2596 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2598 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2599 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2604 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2605 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2606 lseek(fd, 0, SEEK_SET);
2608 /* init buffer input */
2609 c->buffer_ptr = c->buffer;
2610 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2611 c->stream->feed_opened = 1;
2612 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2616 static int http_receive_data(HTTPContext *c)
2619 int len, loop_run = 0;
2621 while (c->chunked_encoding && !c->chunk_size &&
2622 c->buffer_end > c->buffer_ptr) {
2623 /* read chunk header, if present */
2624 len = recv(c->fd, c->buffer_ptr, 1, 0);
2627 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2628 ff_neterrno() != FF_NETERROR(EINTR))
2629 /* error : close connection */
2632 } else if (len == 0) {
2633 /* end of connection : close it */
2635 } else if (c->buffer_ptr - c->buffer >= 2 &&
2636 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2637 c->chunk_size = strtol(c->buffer, 0, 16);
2638 if (c->chunk_size == 0) // end of stream
2640 c->buffer_ptr = c->buffer;
2642 } else if (++loop_run > 10) {
2643 /* no chunk header, abort */
2650 if (c->buffer_end > c->buffer_ptr) {
2651 len = recv(c->fd, c->buffer_ptr,
2652 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2654 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2655 ff_neterrno() != FF_NETERROR(EINTR))
2656 /* error : close connection */
2658 } else if (len == 0)
2659 /* end of connection : close it */
2662 c->chunk_size -= len;
2663 c->buffer_ptr += len;
2664 c->data_count += len;
2665 update_datarate(&c->datarate, c->data_count);
2669 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2670 if (c->buffer[0] != 'f' ||
2671 c->buffer[1] != 'm') {
2672 http_log("Feed stream has become desynchronized -- disconnecting\n");
2677 if (c->buffer_ptr >= c->buffer_end) {
2678 FFStream *feed = c->stream;
2679 /* a packet has been received : write it in the store, except
2681 if (c->data_count > FFM_PACKET_SIZE) {
2683 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
2684 /* XXX: use llseek or url_seek */
2685 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2686 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2687 http_log("Error writing to feed file: %s\n", strerror(errno));
2691 feed->feed_write_index += FFM_PACKET_SIZE;
2692 /* update file size */
2693 if (feed->feed_write_index > c->stream->feed_size)
2694 feed->feed_size = feed->feed_write_index;
2696 /* handle wrap around if max file size reached */
2697 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2698 feed->feed_write_index = FFM_PACKET_SIZE;
2701 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2702 http_log("Error writing index to feed file: %s\n", strerror(errno));
2706 /* wake up any waiting connections */
2707 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2708 if (c1->state == HTTPSTATE_WAIT_FEED &&
2709 c1->stream->feed == c->stream->feed)
2710 c1->state = HTTPSTATE_SEND_DATA;
2713 /* We have a header in our hands that contains useful data */
2714 AVFormatContext *s = NULL;
2716 AVInputFormat *fmt_in;
2719 /* use feed output format name to find corresponding input format */
2720 fmt_in = av_find_input_format(feed->fmt->name);
2724 url_open_buf(&pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
2725 pb->is_streamed = 1;
2727 if (av_open_input_stream(&s, pb, c->stream->feed_filename, fmt_in, NULL) < 0) {
2732 /* Now we have the actual streams */
2733 if (s->nb_streams != feed->nb_streams) {
2734 av_close_input_stream(s);
2736 http_log("Feed '%s' stream number does not match registered feed\n",
2737 c->stream->feed_filename);
2741 for (i = 0; i < s->nb_streams; i++) {
2742 AVStream *fst = feed->streams[i];
2743 AVStream *st = s->streams[i];
2744 avcodec_copy_context(fst->codec, st->codec);
2747 av_close_input_stream(s);
2750 c->buffer_ptr = c->buffer;
2755 c->stream->feed_opened = 0;
2757 /* wake up any waiting connections to stop waiting for feed */
2758 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2759 if (c1->state == HTTPSTATE_WAIT_FEED &&
2760 c1->stream->feed == c->stream->feed)
2761 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2766 /********************************************************************/
2769 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2776 switch(error_number) {
2777 case RTSP_STATUS_OK:
2780 case RTSP_STATUS_METHOD:
2781 str = "Method Not Allowed";
2783 case RTSP_STATUS_BANDWIDTH:
2784 str = "Not Enough Bandwidth";
2786 case RTSP_STATUS_SESSION:
2787 str = "Session Not Found";
2789 case RTSP_STATUS_STATE:
2790 str = "Method Not Valid in This State";
2792 case RTSP_STATUS_AGGREGATE:
2793 str = "Aggregate operation not allowed";
2795 case RTSP_STATUS_ONLY_AGGREGATE:
2796 str = "Only aggregate operation allowed";
2798 case RTSP_STATUS_TRANSPORT:
2799 str = "Unsupported transport";
2801 case RTSP_STATUS_INTERNAL:
2802 str = "Internal Server Error";
2804 case RTSP_STATUS_SERVICE:
2805 str = "Service Unavailable";
2807 case RTSP_STATUS_VERSION:
2808 str = "RTSP Version not supported";
2811 str = "Unknown Error";
2815 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2816 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2818 /* output GMT time */
2821 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2822 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2825 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2827 rtsp_reply_header(c, error_number);
2828 url_fprintf(c->pb, "\r\n");
2831 static int rtsp_parse_request(HTTPContext *c)
2833 const char *p, *p1, *p2;
2839 RTSPMessageHeader header1, *header = &header1;
2841 c->buffer_ptr[0] = '\0';
2844 get_word(cmd, sizeof(cmd), &p);
2845 get_word(url, sizeof(url), &p);
2846 get_word(protocol, sizeof(protocol), &p);
2848 av_strlcpy(c->method, cmd, sizeof(c->method));
2849 av_strlcpy(c->url, url, sizeof(c->url));
2850 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2852 if (url_open_dyn_buf(&c->pb) < 0) {
2853 /* XXX: cannot do more */
2854 c->pb = NULL; /* safety */
2858 /* check version name */
2859 if (strcmp(protocol, "RTSP/1.0") != 0) {
2860 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2864 /* parse each header line */
2865 memset(header, 0, sizeof(*header));
2866 /* skip to next line */
2867 while (*p != '\n' && *p != '\0')
2871 while (*p != '\0') {
2872 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2876 if (p2 > p && p2[-1] == '\r')
2878 /* skip empty line */
2882 if (len > sizeof(line) - 1)
2883 len = sizeof(line) - 1;
2884 memcpy(line, p, len);
2886 ff_rtsp_parse_line(header, line, NULL, NULL);
2890 /* handle sequence number */
2891 c->seq = header->seq;
2893 if (!strcmp(cmd, "DESCRIBE"))
2894 rtsp_cmd_describe(c, url);
2895 else if (!strcmp(cmd, "OPTIONS"))
2896 rtsp_cmd_options(c, url);
2897 else if (!strcmp(cmd, "SETUP"))
2898 rtsp_cmd_setup(c, url, header);
2899 else if (!strcmp(cmd, "PLAY"))
2900 rtsp_cmd_play(c, url, header);
2901 else if (!strcmp(cmd, "PAUSE"))
2902 rtsp_cmd_pause(c, url, header);
2903 else if (!strcmp(cmd, "TEARDOWN"))
2904 rtsp_cmd_teardown(c, url, header);
2906 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2909 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2910 c->pb = NULL; /* safety */
2912 /* XXX: cannot do more */
2915 c->buffer_ptr = c->pb_buffer;
2916 c->buffer_end = c->pb_buffer + len;
2917 c->state = RTSPSTATE_SEND_REPLY;
2921 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2922 struct in_addr my_ip)
2924 AVFormatContext *avc;
2925 AVStream *avs = NULL;
2928 avc = avformat_alloc_context();
2932 av_metadata_set2(&avc->metadata, "title",
2933 stream->title[0] ? stream->title : "No Title", 0);
2934 avc->nb_streams = stream->nb_streams;
2935 if (stream->is_multicast) {
2936 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2937 inet_ntoa(stream->multicast_ip),
2938 stream->multicast_port, stream->multicast_ttl);
2940 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2943 #if !FF_API_MAX_STREAMS
2944 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2945 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2948 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2949 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2952 for(i = 0; i < stream->nb_streams; i++) {
2953 avc->streams[i] = &avs[i];
2954 avc->streams[i]->codec = stream->streams[i]->codec;
2956 *pbuffer = av_mallocz(2048);
2957 avf_sdp_create(&avc, 1, *pbuffer, 2048);
2960 #if !FF_API_MAX_STREAMS
2961 av_free(avc->streams);
2963 av_metadata_free(&avc->metadata);
2967 return strlen(*pbuffer);
2970 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2972 // rtsp_reply_header(c, RTSP_STATUS_OK);
2973 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2974 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2975 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2976 url_fprintf(c->pb, "\r\n");
2979 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2985 int content_length, len;
2986 struct sockaddr_in my_addr;
2988 /* find which url is asked */
2989 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2994 for(stream = first_stream; stream != NULL; stream = stream->next) {
2995 if (!stream->is_feed &&
2996 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2997 !strcmp(path, stream->filename)) {
3001 /* no stream found */
3002 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3006 /* prepare the media description in sdp format */
3008 /* get the host IP */
3009 len = sizeof(my_addr);
3010 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3011 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3012 if (content_length < 0) {
3013 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3016 rtsp_reply_header(c, RTSP_STATUS_OK);
3017 url_fprintf(c->pb, "Content-Base: %s/\r\n", url);
3018 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
3019 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
3020 url_fprintf(c->pb, "\r\n");
3021 avio_write(c->pb, content, content_length);
3025 static HTTPContext *find_rtp_session(const char *session_id)
3029 if (session_id[0] == '\0')
3032 for(c = first_http_ctx; c != NULL; c = c->next) {
3033 if (!strcmp(c->session_id, session_id))
3039 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3041 RTSPTransportField *th;
3044 for(i=0;i<h->nb_transports;i++) {
3045 th = &h->transports[i];
3046 if (th->lower_transport == lower_transport)
3052 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3053 RTSPMessageHeader *h)
3056 int stream_index, rtp_port, rtcp_port;
3061 RTSPTransportField *th;
3062 struct sockaddr_in dest_addr;
3063 RTSPActionServerSetup setup;
3065 /* find which url is asked */
3066 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3071 /* now check each stream */
3072 for(stream = first_stream; stream != NULL; stream = stream->next) {
3073 if (!stream->is_feed &&
3074 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3075 /* accept aggregate filenames only if single stream */
3076 if (!strcmp(path, stream->filename)) {
3077 if (stream->nb_streams != 1) {
3078 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3085 for(stream_index = 0; stream_index < stream->nb_streams;
3087 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3088 stream->filename, stream_index);
3089 if (!strcmp(path, buf))
3094 /* no stream found */
3095 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3099 /* generate session id if needed */
3100 if (h->session_id[0] == '\0')
3101 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3102 av_lfg_get(&random_state), av_lfg_get(&random_state));
3104 /* find rtp session, and create it if none found */
3105 rtp_c = find_rtp_session(h->session_id);
3107 /* always prefer UDP */
3108 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3110 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3112 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3117 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3118 th->lower_transport);
3120 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3124 /* open input stream */
3125 if (open_input_stream(rtp_c, "") < 0) {
3126 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3131 /* test if stream is OK (test needed because several SETUP needs
3132 to be done for a given file) */
3133 if (rtp_c->stream != stream) {
3134 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3138 /* test if stream is already set up */
3139 if (rtp_c->rtp_ctx[stream_index]) {
3140 rtsp_reply_error(c, RTSP_STATUS_STATE);
3144 /* check transport */
3145 th = find_transport(h, rtp_c->rtp_protocol);
3146 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3147 th->client_port_min <= 0)) {
3148 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3152 /* setup default options */
3153 setup.transport_option[0] = '\0';
3154 dest_addr = rtp_c->from_addr;
3155 dest_addr.sin_port = htons(th->client_port_min);
3158 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3159 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3163 /* now everything is OK, so we can send the connection parameters */
3164 rtsp_reply_header(c, RTSP_STATUS_OK);
3166 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3168 switch(rtp_c->rtp_protocol) {
3169 case RTSP_LOWER_TRANSPORT_UDP:
3170 rtp_port = rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3171 rtcp_port = rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3172 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3173 "client_port=%d-%d;server_port=%d-%d",
3174 th->client_port_min, th->client_port_max,
3175 rtp_port, rtcp_port);
3177 case RTSP_LOWER_TRANSPORT_TCP:
3178 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3179 stream_index * 2, stream_index * 2 + 1);
3184 if (setup.transport_option[0] != '\0')
3185 url_fprintf(c->pb, ";%s", setup.transport_option);
3186 url_fprintf(c->pb, "\r\n");
3189 url_fprintf(c->pb, "\r\n");
3193 /* find an rtp connection by using the session ID. Check consistency
3195 static HTTPContext *find_rtp_session_with_url(const char *url,
3196 const char *session_id)
3204 rtp_c = find_rtp_session(session_id);
3208 /* find which url is asked */
3209 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3213 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3214 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3215 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3216 rtp_c->stream->filename, s);
3217 if(!strncmp(path, buf, sizeof(buf))) {
3218 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3223 if (len > 0 && path[len - 1] == '/' &&
3224 !strncmp(path, rtp_c->stream->filename, len - 1))
3229 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3233 rtp_c = find_rtp_session_with_url(url, h->session_id);
3235 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3239 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3240 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3241 rtp_c->state != HTTPSTATE_READY) {
3242 rtsp_reply_error(c, RTSP_STATUS_STATE);
3246 rtp_c->state = HTTPSTATE_SEND_DATA;
3248 /* now everything is OK, so we can send the connection parameters */
3249 rtsp_reply_header(c, RTSP_STATUS_OK);
3251 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3252 url_fprintf(c->pb, "\r\n");
3255 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3259 rtp_c = find_rtp_session_with_url(url, h->session_id);
3261 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3265 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3266 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3267 rtsp_reply_error(c, RTSP_STATUS_STATE);
3271 rtp_c->state = HTTPSTATE_READY;
3272 rtp_c->first_pts = AV_NOPTS_VALUE;
3273 /* now everything is OK, so we can send the connection parameters */
3274 rtsp_reply_header(c, RTSP_STATUS_OK);
3276 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3277 url_fprintf(c->pb, "\r\n");
3280 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3283 char session_id[32];
3285 rtp_c = find_rtp_session_with_url(url, h->session_id);
3287 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3291 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
3293 /* abort the session */
3294 close_connection(rtp_c);
3296 /* now everything is OK, so we can send the connection parameters */
3297 rtsp_reply_header(c, RTSP_STATUS_OK);
3299 url_fprintf(c->pb, "Session: %s\r\n", session_id);
3300 url_fprintf(c->pb, "\r\n");
3304 /********************************************************************/
3307 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3308 FFStream *stream, const char *session_id,
3309 enum RTSPLowerTransport rtp_protocol)
3311 HTTPContext *c = NULL;
3312 const char *proto_str;
3314 /* XXX: should output a warning page when coming
3315 close to the connection limit */
3316 if (nb_connections >= nb_max_connections)
3319 /* add a new connection */
3320 c = av_mallocz(sizeof(HTTPContext));
3325 c->poll_entry = NULL;
3326 c->from_addr = *from_addr;
3327 c->buffer_size = IOBUFFER_INIT_SIZE;
3328 c->buffer = av_malloc(c->buffer_size);
3333 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3334 c->state = HTTPSTATE_READY;
3335 c->is_packetized = 1;
3336 c->rtp_protocol = rtp_protocol;
3338 /* protocol is shown in statistics */
3339 switch(c->rtp_protocol) {
3340 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3341 proto_str = "MCAST";
3343 case RTSP_LOWER_TRANSPORT_UDP:
3346 case RTSP_LOWER_TRANSPORT_TCP:
3353 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3354 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3356 current_bandwidth += stream->bandwidth;
3358 c->next = first_http_ctx;
3370 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3371 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3373 static int rtp_new_av_stream(HTTPContext *c,
3374 int stream_index, struct sockaddr_in *dest_addr,
3375 HTTPContext *rtsp_c)
3377 AVFormatContext *ctx;
3380 URLContext *h = NULL;
3382 int max_packet_size;
3384 /* now we can open the relevant output stream */
3385 ctx = avformat_alloc_context();
3388 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3390 st = av_mallocz(sizeof(AVStream));
3393 ctx->nb_streams = 1;
3394 ctx->streams[0] = st;
3396 if (!c->stream->feed ||
3397 c->stream->feed == c->stream)
3398 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3401 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3403 st->priv_data = NULL;
3405 /* build destination RTP address */
3406 ipaddr = inet_ntoa(dest_addr->sin_addr);
3408 switch(c->rtp_protocol) {
3409 case RTSP_LOWER_TRANSPORT_UDP:
3410 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3413 /* XXX: also pass as parameter to function ? */
3414 if (c->stream->is_multicast) {
3416 ttl = c->stream->multicast_ttl;
3419 snprintf(ctx->filename, sizeof(ctx->filename),
3420 "rtp://%s:%d?multicast=1&ttl=%d",
3421 ipaddr, ntohs(dest_addr->sin_port), ttl);
3423 snprintf(ctx->filename, sizeof(ctx->filename),
3424 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3427 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3429 c->rtp_handles[stream_index] = h;
3430 max_packet_size = url_get_max_packet_size(h);
3432 case RTSP_LOWER_TRANSPORT_TCP:
3435 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3441 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3442 ipaddr, ntohs(dest_addr->sin_port),
3443 c->stream->filename, stream_index, c->protocol);
3445 /* normally, no packets should be output here, but the packet size may be checked */
3446 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3447 /* XXX: close stream */
3450 av_set_parameters(ctx, NULL);
3451 if (av_write_header(ctx) < 0) {
3458 url_close_dyn_buf(ctx->pb, &dummy_buf);
3461 c->rtp_ctx[stream_index] = ctx;
3465 /********************************************************************/
3466 /* ffserver initialization */
3468 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3472 fst = av_mallocz(sizeof(AVStream));
3476 fst->codec= avcodec_alloc_context();
3477 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3478 if (codec->extradata_size) {
3479 fst->codec->extradata = av_malloc(codec->extradata_size);
3480 memcpy(fst->codec->extradata, codec->extradata,
3481 codec->extradata_size);
3484 /* live streams must use the actual feed's codec since it may be
3485 * updated later to carry extradata needed by the streams.
3489 fst->priv_data = av_mallocz(sizeof(FeedData));
3490 fst->index = stream->nb_streams;
3491 av_set_pts_info(fst, 33, 1, 90000);
3492 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3493 stream->streams[stream->nb_streams++] = fst;
3497 /* return the stream number in the feed */
3498 static int add_av_stream(FFStream *feed, AVStream *st)
3501 AVCodecContext *av, *av1;
3505 for(i=0;i<feed->nb_streams;i++) {
3506 st = feed->streams[i];
3508 if (av1->codec_id == av->codec_id &&
3509 av1->codec_type == av->codec_type &&
3510 av1->bit_rate == av->bit_rate) {
3512 switch(av->codec_type) {
3513 case AVMEDIA_TYPE_AUDIO:
3514 if (av1->channels == av->channels &&
3515 av1->sample_rate == av->sample_rate)
3518 case AVMEDIA_TYPE_VIDEO:
3519 if (av1->width == av->width &&
3520 av1->height == av->height &&
3521 av1->time_base.den == av->time_base.den &&
3522 av1->time_base.num == av->time_base.num &&
3523 av1->gop_size == av->gop_size)
3532 fst = add_av_stream1(feed, av, 0);
3535 return feed->nb_streams - 1;
3540 static void remove_stream(FFStream *stream)
3544 while (*ps != NULL) {
3552 /* specific mpeg4 handling : we extract the raw parameters */
3553 static void extract_mpeg4_header(AVFormatContext *infile)
3555 int mpeg4_count, i, size;
3561 for(i=0;i<infile->nb_streams;i++) {
3562 st = infile->streams[i];
3563 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3564 st->codec->extradata_size == 0) {
3571 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3572 while (mpeg4_count > 0) {
3573 if (av_read_packet(infile, &pkt) < 0)
3575 st = infile->streams[pkt.stream_index];
3576 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3577 st->codec->extradata_size == 0) {
3578 av_freep(&st->codec->extradata);
3579 /* fill extradata with the header */
3580 /* XXX: we make hard suppositions here ! */
3582 while (p < pkt.data + pkt.size - 4) {
3583 /* stop when vop header is found */
3584 if (p[0] == 0x00 && p[1] == 0x00 &&
3585 p[2] == 0x01 && p[3] == 0xb6) {
3586 size = p - pkt.data;
3587 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3588 st->codec->extradata = av_malloc(size);
3589 st->codec->extradata_size = size;
3590 memcpy(st->codec->extradata, pkt.data, size);
3597 av_free_packet(&pkt);
3601 /* compute the needed AVStream for each file */
3602 static void build_file_streams(void)
3604 FFStream *stream, *stream_next;
3605 AVFormatContext *infile;
3608 /* gather all streams */
3609 for(stream = first_stream; stream != NULL; stream = stream_next) {
3610 stream_next = stream->next;
3611 if (stream->stream_type == STREAM_TYPE_LIVE &&
3613 /* the stream comes from a file */
3614 /* try to open the file */
3616 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
3617 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3618 /* specific case : if transport stream output to RTP,
3619 we use a raw transport stream reader */
3620 stream->ap_in->mpeg2ts_raw = 1;
3621 stream->ap_in->mpeg2ts_compute_pcr = 1;
3624 http_log("Opening file '%s'\n", stream->feed_filename);
3625 if ((ret = av_open_input_file(&infile, stream->feed_filename,
3626 stream->ifmt, 0, stream->ap_in)) < 0) {
3627 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3628 /* remove stream (no need to spend more time on it) */
3630 remove_stream(stream);
3632 /* find all the AVStreams inside and reference them in
3634 if (av_find_stream_info(infile) < 0) {
3635 http_log("Could not find codec parameters from '%s'\n",
3636 stream->feed_filename);
3637 av_close_input_file(infile);
3640 extract_mpeg4_header(infile);
3642 for(i=0;i<infile->nb_streams;i++)
3643 add_av_stream1(stream, infile->streams[i]->codec, 1);
3645 av_close_input_file(infile);
3651 /* compute the needed AVStream for each feed */
3652 static void build_feed_streams(void)
3654 FFStream *stream, *feed;
3657 /* gather all streams */
3658 for(stream = first_stream; stream != NULL; stream = stream->next) {
3659 feed = stream->feed;
3661 if (!stream->is_feed) {
3662 /* we handle a stream coming from a feed */
3663 for(i=0;i<stream->nb_streams;i++)
3664 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3669 /* gather all streams */
3670 for(stream = first_stream; stream != NULL; stream = stream->next) {
3671 feed = stream->feed;
3673 if (stream->is_feed) {
3674 for(i=0;i<stream->nb_streams;i++)
3675 stream->feed_streams[i] = i;
3680 /* create feed files if needed */
3681 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3684 if (url_exist(feed->feed_filename)) {
3685 /* See if it matches */
3689 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3690 /* Now see if it matches */
3691 if (s->nb_streams == feed->nb_streams) {
3693 for(i=0;i<s->nb_streams;i++) {
3695 sf = feed->streams[i];
3698 if (sf->index != ss->index ||
3700 http_log("Index & Id do not match for stream %d (%s)\n",
3701 i, feed->feed_filename);
3704 AVCodecContext *ccf, *ccs;
3708 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3710 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3711 http_log("Codecs do not match for stream %d\n", i);
3713 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3714 http_log("Codec bitrates do not match for stream %d\n", i);
3716 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3717 if (CHECK_CODEC(time_base.den) ||
3718 CHECK_CODEC(time_base.num) ||
3719 CHECK_CODEC(width) ||
3720 CHECK_CODEC(height)) {
3721 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3724 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3725 if (CHECK_CODEC(sample_rate) ||
3726 CHECK_CODEC(channels) ||
3727 CHECK_CODEC(frame_size)) {
3728 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3732 http_log("Unknown codec type\n");
3740 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3741 feed->feed_filename, s->nb_streams, feed->nb_streams);
3743 av_close_input_file(s);
3745 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3746 feed->feed_filename);
3749 if (feed->readonly) {
3750 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3751 feed->feed_filename);
3754 unlink(feed->feed_filename);
3757 if (!url_exist(feed->feed_filename)) {
3758 AVFormatContext s1 = {0}, *s = &s1;
3760 if (feed->readonly) {
3761 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3762 feed->feed_filename);
3766 /* only write the header of the ffm file */
3767 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
3768 http_log("Could not open output feed file '%s'\n",
3769 feed->feed_filename);
3772 s->oformat = feed->fmt;
3773 s->nb_streams = feed->nb_streams;
3774 for(i=0;i<s->nb_streams;i++) {
3776 st = feed->streams[i];
3779 av_set_parameters(s, NULL);
3780 if (av_write_header(s) < 0) {
3781 http_log("Container doesn't supports the required parameters\n");
3784 /* XXX: need better api */
3785 av_freep(&s->priv_data);
3788 /* get feed size and write index */
3789 fd = open(feed->feed_filename, O_RDONLY);
3791 http_log("Could not open output feed file '%s'\n",
3792 feed->feed_filename);
3796 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3797 feed->feed_size = lseek(fd, 0, SEEK_END);
3798 /* ensure that we do not wrap before the end of file */
3799 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3800 feed->feed_max_size = feed->feed_size;
3806 /* compute the bandwidth used by each stream */
3807 static void compute_bandwidth(void)
3813 for(stream = first_stream; stream != NULL; stream = stream->next) {
3815 for(i=0;i<stream->nb_streams;i++) {
3816 AVStream *st = stream->streams[i];
3817 switch(st->codec->codec_type) {
3818 case AVMEDIA_TYPE_AUDIO:
3819 case AVMEDIA_TYPE_VIDEO:
3820 bandwidth += st->codec->bit_rate;
3826 stream->bandwidth = (bandwidth + 999) / 1000;
3830 /* add a codec and set the default parameters */
3831 static void add_codec(FFStream *stream, AVCodecContext *av)
3835 /* compute default parameters */
3836 switch(av->codec_type) {
3837 case AVMEDIA_TYPE_AUDIO:
3838 if (av->bit_rate == 0)
3839 av->bit_rate = 64000;
3840 if (av->sample_rate == 0)
3841 av->sample_rate = 22050;
3842 if (av->channels == 0)
3845 case AVMEDIA_TYPE_VIDEO:
3846 if (av->bit_rate == 0)
3847 av->bit_rate = 64000;
3848 if (av->time_base.num == 0){
3849 av->time_base.den = 5;
3850 av->time_base.num = 1;
3852 if (av->width == 0 || av->height == 0) {
3856 /* Bitrate tolerance is less for streaming */
3857 if (av->bit_rate_tolerance == 0)
3858 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3859 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3864 if (av->max_qdiff == 0)
3866 av->qcompress = 0.5;
3869 if (!av->nsse_weight)
3870 av->nsse_weight = 8;
3872 av->frame_skip_cmp = FF_CMP_DCTMAX;
3874 av->me_method = ME_EPZS;
3875 av->rc_buffer_aggressivity = 1.0;
3878 av->rc_eq = "tex^qComp";
3879 if (!av->i_quant_factor)
3880 av->i_quant_factor = -0.8;
3881 if (!av->b_quant_factor)
3882 av->b_quant_factor = 1.25;
3883 if (!av->b_quant_offset)
3884 av->b_quant_offset = 1.25;
3885 if (!av->rc_max_rate)
3886 av->rc_max_rate = av->bit_rate * 2;
3888 if (av->rc_max_rate && !av->rc_buffer_size) {
3889 av->rc_buffer_size = av->rc_max_rate;
3898 st = av_mallocz(sizeof(AVStream));
3901 st->codec = avcodec_alloc_context();
3902 stream->streams[stream->nb_streams++] = st;
3903 memcpy(st->codec, av, sizeof(AVCodecContext));
3906 static enum CodecID opt_audio_codec(const char *arg)
3908 AVCodec *p= avcodec_find_encoder_by_name(arg);
3910 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3911 return CODEC_ID_NONE;
3916 static enum CodecID opt_video_codec(const char *arg)
3918 AVCodec *p= avcodec_find_encoder_by_name(arg);
3920 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3921 return CODEC_ID_NONE;
3926 /* simplistic plugin support */
3929 static void load_module(const char *filename)
3932 void (*init_func)(void);
3933 dll = dlopen(filename, RTLD_NOW);
3935 fprintf(stderr, "Could not load module '%s' - %s\n",
3936 filename, dlerror());
3940 init_func = dlsym(dll, "ffserver_module_init");
3943 "%s: init function 'ffserver_module_init()' not found\n",
3952 static int ffserver_opt_default(const char *opt, const char *arg,
3953 AVCodecContext *avctx, int type)
3956 const AVOption *o = av_find_opt(avctx, opt, NULL, type, type);
3958 ret = av_set_string3(avctx, opt, arg, 1, NULL);
3962 static int ffserver_opt_preset(const char *arg,
3963 AVCodecContext *avctx, int type,
3964 enum CodecID *audio_id, enum CodecID *video_id)
3967 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3969 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3971 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3972 codec ? codec->name : NULL))) {
3973 fprintf(stderr, "File for preset '%s' not found\n", arg);
3978 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3979 if(line[0] == '#' && !e)
3981 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3983 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
3987 if(!strcmp(tmp, "acodec")){
3988 *audio_id = opt_audio_codec(tmp2);
3989 }else if(!strcmp(tmp, "vcodec")){
3990 *video_id = opt_video_codec(tmp2);
3991 }else if(!strcmp(tmp, "scodec")){
3992 /* opt_subtitle_codec(tmp2); */
3993 }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){
3994 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
4005 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
4006 const char *mime_type)
4008 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
4011 AVOutputFormat *stream_fmt;
4012 char stream_format_name[64];
4014 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
4015 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
4024 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
4028 fprintf(stderr, "%s:%d: ", filename, line_num);
4029 vfprintf(stderr, fmt, vl);
4035 static int parse_ffconfig(const char *filename)
4042 int val, errors, line_num;
4043 FFStream **last_stream, *stream, *redirect;
4044 FFStream **last_feed, *feed, *s;
4045 AVCodecContext audio_enc, video_enc;
4046 enum CodecID audio_id, video_id;
4048 f = fopen(filename, "r");
4056 first_stream = NULL;
4057 last_stream = &first_stream;
4059 last_feed = &first_feed;
4063 audio_id = CODEC_ID_NONE;
4064 video_id = CODEC_ID_NONE;
4066 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4068 if (fgets(line, sizeof(line), f) == NULL)
4074 if (*p == '\0' || *p == '#')
4077 get_arg(cmd, sizeof(cmd), &p);
4079 if (!strcasecmp(cmd, "Port")) {
4080 get_arg(arg, sizeof(arg), &p);
4082 if (val < 1 || val > 65536) {
4083 ERROR("Invalid_port: %s\n", arg);
4085 my_http_addr.sin_port = htons(val);
4086 } else if (!strcasecmp(cmd, "BindAddress")) {
4087 get_arg(arg, sizeof(arg), &p);
4088 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4089 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4091 } else if (!strcasecmp(cmd, "NoDaemon")) {
4092 ffserver_daemon = 0;
4093 } else if (!strcasecmp(cmd, "RTSPPort")) {
4094 get_arg(arg, sizeof(arg), &p);
4096 if (val < 1 || val > 65536) {
4097 ERROR("%s:%d: Invalid port: %s\n", arg);
4099 my_rtsp_addr.sin_port = htons(atoi(arg));
4100 } else if (!strcasecmp(cmd, "RTSPBindAddress")) {
4101 get_arg(arg, sizeof(arg), &p);
4102 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4103 ERROR("Invalid host/IP address: %s\n", arg);
4105 } else if (!strcasecmp(cmd, "MaxHTTPConnections")) {
4106 get_arg(arg, sizeof(arg), &p);
4108 if (val < 1 || val > 65536) {
4109 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4111 nb_max_http_connections = val;
4112 } else if (!strcasecmp(cmd, "MaxClients")) {
4113 get_arg(arg, sizeof(arg), &p);
4115 if (val < 1 || val > nb_max_http_connections) {
4116 ERROR("Invalid MaxClients: %s\n", arg);
4118 nb_max_connections = val;
4120 } else if (!strcasecmp(cmd, "MaxBandwidth")) {
4122 get_arg(arg, sizeof(arg), &p);
4124 if (llval < 10 || llval > 10000000) {
4125 ERROR("Invalid MaxBandwidth: %s\n", arg);
4127 max_bandwidth = llval;
4128 } else if (!strcasecmp(cmd, "CustomLog")) {
4129 if (!ffserver_debug)
4130 get_arg(logfilename, sizeof(logfilename), &p);
4131 } else if (!strcasecmp(cmd, "<Feed")) {
4132 /*********************************************/
4133 /* Feed related options */
4135 if (stream || feed) {
4136 ERROR("Already in a tag\n");
4138 feed = av_mallocz(sizeof(FFStream));
4139 get_arg(feed->filename, sizeof(feed->filename), &p);
4140 q = strrchr(feed->filename, '>');
4144 for (s = first_feed; s; s = s->next) {
4145 if (!strcmp(feed->filename, s->filename)) {
4146 ERROR("Feed '%s' already registered\n", s->filename);
4150 feed->fmt = av_guess_format("ffm", NULL, NULL);
4151 /* defaut feed file */
4152 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4153 "/tmp/%s.ffm", feed->filename);
4154 feed->feed_max_size = 5 * 1024 * 1024;
4156 feed->feed = feed; /* self feeding :-) */
4158 /* add in stream list */
4159 *last_stream = feed;
4160 last_stream = &feed->next;
4161 /* add in feed list */
4163 last_feed = &feed->next_feed;
4165 } else if (!strcasecmp(cmd, "Launch")) {
4169 feed->child_argv = av_mallocz(64 * sizeof(char *));
4171 for (i = 0; i < 62; i++) {
4172 get_arg(arg, sizeof(arg), &p);
4176 feed->child_argv[i] = av_strdup(arg);
4179 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4181 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4183 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4184 inet_ntoa(my_http_addr.sin_addr),
4185 ntohs(my_http_addr.sin_port), feed->filename);
4187 } else if (!strcasecmp(cmd, "ReadOnlyFile")) {
4189 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4191 } else if (stream) {
4192 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4194 } else if (!strcasecmp(cmd, "File")) {
4196 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4198 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4199 } else if (!strcasecmp(cmd, "Truncate")) {
4201 get_arg(arg, sizeof(arg), &p);
4202 feed->truncate = strtod(arg, NULL);
4204 } else if (!strcasecmp(cmd, "FileMaxSize")) {
4209 get_arg(arg, sizeof(arg), &p);
4211 fsize = strtod(p1, &p1);
4212 switch(toupper(*p1)) {
4217 fsize *= 1024 * 1024;
4220 fsize *= 1024 * 1024 * 1024;
4223 feed->feed_max_size = (int64_t)fsize;
4224 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4225 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4228 } else if (!strcasecmp(cmd, "</Feed>")) {
4230 ERROR("No corresponding <Feed> for </Feed>\n");
4233 } else if (!strcasecmp(cmd, "<Stream")) {
4234 /*********************************************/
4235 /* Stream related options */
4237 if (stream || feed) {
4238 ERROR("Already in a tag\n");
4241 stream = av_mallocz(sizeof(FFStream));
4242 get_arg(stream->filename, sizeof(stream->filename), &p);
4243 q = strrchr(stream->filename, '>');
4247 for (s = first_stream; s; s = s->next) {
4248 if (!strcmp(stream->filename, s->filename)) {
4249 ERROR("Stream '%s' already registered\n", s->filename);
4253 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4254 avcodec_get_context_defaults2(&video_enc, AVMEDIA_TYPE_VIDEO);
4255 avcodec_get_context_defaults2(&audio_enc, AVMEDIA_TYPE_AUDIO);
4256 audio_id = CODEC_ID_NONE;
4257 video_id = CODEC_ID_NONE;
4259 audio_id = stream->fmt->audio_codec;
4260 video_id = stream->fmt->video_codec;
4263 *last_stream = stream;
4264 last_stream = &stream->next;
4266 } else if (!strcasecmp(cmd, "Feed")) {
4267 get_arg(arg, sizeof(arg), &p);
4272 while (sfeed != NULL) {
4273 if (!strcmp(sfeed->filename, arg))
4275 sfeed = sfeed->next_feed;
4278 ERROR("feed '%s' not defined\n", arg);
4280 stream->feed = sfeed;
4282 } else if (!strcasecmp(cmd, "Format")) {
4283 get_arg(arg, sizeof(arg), &p);
4285 if (!strcmp(arg, "status")) {
4286 stream->stream_type = STREAM_TYPE_STATUS;
4289 stream->stream_type = STREAM_TYPE_LIVE;
4290 /* jpeg cannot be used here, so use single frame jpeg */
4291 if (!strcmp(arg, "jpeg"))
4292 strcpy(arg, "mjpeg");
4293 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4295 ERROR("Unknown Format: %s\n", arg);
4299 audio_id = stream->fmt->audio_codec;
4300 video_id = stream->fmt->video_codec;
4303 } else if (!strcasecmp(cmd, "InputFormat")) {
4304 get_arg(arg, sizeof(arg), &p);
4306 stream->ifmt = av_find_input_format(arg);
4307 if (!stream->ifmt) {
4308 ERROR("Unknown input format: %s\n", arg);
4311 } else if (!strcasecmp(cmd, "FaviconURL")) {
4312 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4313 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4315 ERROR("FaviconURL only permitted for status streams\n");
4317 } else if (!strcasecmp(cmd, "Author")) {
4319 get_arg(stream->author, sizeof(stream->author), &p);
4320 } else if (!strcasecmp(cmd, "Comment")) {
4322 get_arg(stream->comment, sizeof(stream->comment), &p);
4323 } else if (!strcasecmp(cmd, "Copyright")) {
4325 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4326 } else if (!strcasecmp(cmd, "Title")) {
4328 get_arg(stream->title, sizeof(stream->title), &p);
4329 } else if (!strcasecmp(cmd, "Preroll")) {
4330 get_arg(arg, sizeof(arg), &p);
4332 stream->prebuffer = atof(arg) * 1000;
4333 } else if (!strcasecmp(cmd, "StartSendOnKey")) {
4335 stream->send_on_key = 1;
4336 } else if (!strcasecmp(cmd, "AudioCodec")) {
4337 get_arg(arg, sizeof(arg), &p);
4338 audio_id = opt_audio_codec(arg);
4339 if (audio_id == CODEC_ID_NONE) {
4340 ERROR("Unknown AudioCodec: %s\n", arg);
4342 } else if (!strcasecmp(cmd, "VideoCodec")) {
4343 get_arg(arg, sizeof(arg), &p);
4344 video_id = opt_video_codec(arg);
4345 if (video_id == CODEC_ID_NONE) {
4346 ERROR("Unknown VideoCodec: %s\n", arg);
4348 } else if (!strcasecmp(cmd, "MaxTime")) {
4349 get_arg(arg, sizeof(arg), &p);
4351 stream->max_time = atof(arg) * 1000;
4352 } else if (!strcasecmp(cmd, "AudioBitRate")) {
4353 get_arg(arg, sizeof(arg), &p);
4355 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4356 } else if (!strcasecmp(cmd, "AudioChannels")) {
4357 get_arg(arg, sizeof(arg), &p);
4359 audio_enc.channels = atoi(arg);
4360 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
4361 get_arg(arg, sizeof(arg), &p);
4363 audio_enc.sample_rate = atoi(arg);
4364 } else if (!strcasecmp(cmd, "AudioQuality")) {
4365 get_arg(arg, sizeof(arg), &p);
4367 // audio_enc.quality = atof(arg) * 1000;
4369 } else if (!strcasecmp(cmd, "VideoBitRateRange")) {
4371 int minrate, maxrate;
4373 get_arg(arg, sizeof(arg), &p);
4375 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4376 video_enc.rc_min_rate = minrate * 1000;
4377 video_enc.rc_max_rate = maxrate * 1000;
4379 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4382 } else if (!strcasecmp(cmd, "Debug")) {
4384 get_arg(arg, sizeof(arg), &p);
4385 video_enc.debug = strtol(arg,0,0);
4387 } else if (!strcasecmp(cmd, "Strict")) {
4389 get_arg(arg, sizeof(arg), &p);
4390 video_enc.strict_std_compliance = atoi(arg);
4392 } else if (!strcasecmp(cmd, "VideoBufferSize")) {
4394 get_arg(arg, sizeof(arg), &p);
4395 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4397 } else if (!strcasecmp(cmd, "VideoBitRateTolerance")) {
4399 get_arg(arg, sizeof(arg), &p);
4400 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4402 } else if (!strcasecmp(cmd, "VideoBitRate")) {
4403 get_arg(arg, sizeof(arg), &p);
4405 video_enc.bit_rate = atoi(arg) * 1000;
4407 } else if (!strcasecmp(cmd, "VideoSize")) {
4408 get_arg(arg, sizeof(arg), &p);
4410 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4411 if ((video_enc.width % 16) != 0 ||
4412 (video_enc.height % 16) != 0) {
4413 ERROR("Image size must be a multiple of 16\n");
4416 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
4417 get_arg(arg, sizeof(arg), &p);
4419 AVRational frame_rate;
4420 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4421 ERROR("Incorrect frame rate: %s\n", arg);
4423 video_enc.time_base.num = frame_rate.den;
4424 video_enc.time_base.den = frame_rate.num;
4427 } else if (!strcasecmp(cmd, "VideoGopSize")) {
4428 get_arg(arg, sizeof(arg), &p);
4430 video_enc.gop_size = atoi(arg);
4431 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
4433 video_enc.gop_size = 1;
4434 } else if (!strcasecmp(cmd, "VideoHighQuality")) {
4436 video_enc.mb_decision = FF_MB_DECISION_BITS;
4437 } else if (!strcasecmp(cmd, "Video4MotionVector")) {
4439 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4440 video_enc.flags |= CODEC_FLAG_4MV;
4442 } else if (!strcasecmp(cmd, "AVOptionVideo") ||
4443 !strcasecmp(cmd, "AVOptionAudio")) {
4445 AVCodecContext *avctx;
4447 get_arg(arg, sizeof(arg), &p);
4448 get_arg(arg2, sizeof(arg2), &p);
4449 if (!strcasecmp(cmd, "AVOptionVideo")) {
4451 type = AV_OPT_FLAG_VIDEO_PARAM;
4454 type = AV_OPT_FLAG_AUDIO_PARAM;
4456 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4457 ERROR("AVOption error: %s %s\n", arg, arg2);
4459 } else if (!strcasecmp(cmd, "AVPresetVideo") ||
4460 !strcasecmp(cmd, "AVPresetAudio")) {
4461 AVCodecContext *avctx;
4463 get_arg(arg, sizeof(arg), &p);
4464 if (!strcasecmp(cmd, "AVPresetVideo")) {
4466 video_enc.codec_id = video_id;
4467 type = AV_OPT_FLAG_VIDEO_PARAM;
4470 audio_enc.codec_id = audio_id;
4471 type = AV_OPT_FLAG_AUDIO_PARAM;
4473 if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4474 ERROR("AVPreset error: %s\n", arg);
4476 } else if (!strcasecmp(cmd, "VideoTag")) {
4477 get_arg(arg, sizeof(arg), &p);
4478 if ((strlen(arg) == 4) && stream)
4479 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4480 } else if (!strcasecmp(cmd, "BitExact")) {
4482 video_enc.flags |= CODEC_FLAG_BITEXACT;
4483 } else if (!strcasecmp(cmd, "DctFastint")) {
4485 video_enc.dct_algo = FF_DCT_FASTINT;
4486 } else if (!strcasecmp(cmd, "IdctSimple")) {
4488 video_enc.idct_algo = FF_IDCT_SIMPLE;
4489 } else if (!strcasecmp(cmd, "Qscale")) {
4490 get_arg(arg, sizeof(arg), &p);
4492 video_enc.flags |= CODEC_FLAG_QSCALE;
4493 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4495 } else if (!strcasecmp(cmd, "VideoQDiff")) {
4496 get_arg(arg, sizeof(arg), &p);
4498 video_enc.max_qdiff = atoi(arg);
4499 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4500 ERROR("VideoQDiff out of range\n");
4503 } else if (!strcasecmp(cmd, "VideoQMax")) {
4504 get_arg(arg, sizeof(arg), &p);
4506 video_enc.qmax = atoi(arg);
4507 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4508 ERROR("VideoQMax out of range\n");
4511 } else if (!strcasecmp(cmd, "VideoQMin")) {
4512 get_arg(arg, sizeof(arg), &p);
4514 video_enc.qmin = atoi(arg);
4515 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4516 ERROR("VideoQMin out of range\n");
4519 } else if (!strcasecmp(cmd, "LumaElim")) {
4520 get_arg(arg, sizeof(arg), &p);
4522 video_enc.luma_elim_threshold = atoi(arg);
4523 } else if (!strcasecmp(cmd, "ChromaElim")) {
4524 get_arg(arg, sizeof(arg), &p);
4526 video_enc.chroma_elim_threshold = atoi(arg);
4527 } else if (!strcasecmp(cmd, "LumiMask")) {
4528 get_arg(arg, sizeof(arg), &p);
4530 video_enc.lumi_masking = atof(arg);
4531 } else if (!strcasecmp(cmd, "DarkMask")) {
4532 get_arg(arg, sizeof(arg), &p);
4534 video_enc.dark_masking = atof(arg);
4535 } else if (!strcasecmp(cmd, "NoVideo")) {
4536 video_id = CODEC_ID_NONE;
4537 } else if (!strcasecmp(cmd, "NoAudio")) {
4538 audio_id = CODEC_ID_NONE;
4539 } else if (!strcasecmp(cmd, "ACL")) {
4540 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4541 } else if (!strcasecmp(cmd, "DynamicACL")) {
4543 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4545 } else if (!strcasecmp(cmd, "RTSPOption")) {
4546 get_arg(arg, sizeof(arg), &p);
4548 av_freep(&stream->rtsp_option);
4549 stream->rtsp_option = av_strdup(arg);
4551 } else if (!strcasecmp(cmd, "MulticastAddress")) {
4552 get_arg(arg, sizeof(arg), &p);
4554 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4555 ERROR("Invalid host/IP address: %s\n", arg);
4557 stream->is_multicast = 1;
4558 stream->loop = 1; /* default is looping */
4560 } else if (!strcasecmp(cmd, "MulticastPort")) {
4561 get_arg(arg, sizeof(arg), &p);
4563 stream->multicast_port = atoi(arg);
4564 } else if (!strcasecmp(cmd, "MulticastTTL")) {
4565 get_arg(arg, sizeof(arg), &p);
4567 stream->multicast_ttl = atoi(arg);
4568 } else if (!strcasecmp(cmd, "NoLoop")) {
4571 } else if (!strcasecmp(cmd, "</Stream>")) {
4573 ERROR("No corresponding <Stream> for </Stream>\n");
4575 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4576 if (audio_id != CODEC_ID_NONE) {
4577 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4578 audio_enc.codec_id = audio_id;
4579 add_codec(stream, &audio_enc);
4581 if (video_id != CODEC_ID_NONE) {
4582 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4583 video_enc.codec_id = video_id;
4584 add_codec(stream, &video_enc);
4589 } else if (!strcasecmp(cmd, "<Redirect")) {
4590 /*********************************************/
4592 if (stream || feed || redirect) {
4593 ERROR("Already in a tag\n");
4595 redirect = av_mallocz(sizeof(FFStream));
4596 *last_stream = redirect;
4597 last_stream = &redirect->next;
4599 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4600 q = strrchr(redirect->filename, '>');
4603 redirect->stream_type = STREAM_TYPE_REDIRECT;
4605 } else if (!strcasecmp(cmd, "URL")) {
4607 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4608 } else if (!strcasecmp(cmd, "</Redirect>")) {
4610 ERROR("No corresponding <Redirect> for </Redirect>\n");
4612 if (!redirect->feed_filename[0]) {
4613 ERROR("No URL found for <Redirect>\n");
4617 } else if (!strcasecmp(cmd, "LoadModule")) {
4618 get_arg(arg, sizeof(arg), &p);
4622 ERROR("Module support not compiled into this version: '%s'\n", arg);
4625 ERROR("Incorrect keyword: '%s'\n", cmd);
4637 static void handle_child_exit(int sig)
4642 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4645 for (feed = first_feed; feed; feed = feed->next) {
4646 if (feed->pid == pid) {
4647 int uptime = time(0) - feed->pid_start;
4650 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4653 /* Turn off any more restarts */
4654 feed->child_argv = 0;
4659 need_to_start_children = 1;
4662 static void opt_debug(void)
4665 ffserver_daemon = 0;
4666 logfilename[0] = '-';
4669 static void show_help(void)
4671 printf("usage: ffserver [options]\n"
4672 "Hyper fast multi format Audio/Video streaming server\n");
4674 show_help_options(options, "Main options:\n", 0, 0);
4677 static const OptionDef options[] = {
4678 #include "cmdutils_common_opts.h"
4679 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4680 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4681 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4685 int main(int argc, char **argv)
4687 struct sigaction sigact;
4693 my_program_name = argv[0];
4694 my_program_dir = getcwd(0, 0);
4695 ffserver_daemon = 1;
4697 parse_options(argc, argv, options, NULL);
4699 unsetenv("http_proxy"); /* Kill the http_proxy */
4701 av_lfg_init(&random_state, av_get_random_seed());
4703 memset(&sigact, 0, sizeof(sigact));
4704 sigact.sa_handler = handle_child_exit;
4705 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4706 sigaction(SIGCHLD, &sigact, 0);
4708 if (parse_ffconfig(config_filename) < 0) {
4709 fprintf(stderr, "Incorrect config file - exiting.\n");
4713 /* open log file if needed */
4714 if (logfilename[0] != '\0') {
4715 if (!strcmp(logfilename, "-"))
4718 logfile = fopen(logfilename, "a");
4719 av_log_set_callback(http_av_log);
4722 build_file_streams();
4724 build_feed_streams();
4726 compute_bandwidth();
4728 /* put the process in background and detach it from its TTY */
4729 if (ffserver_daemon) {
4736 } else if (pid > 0) {
4743 open("/dev/null", O_RDWR);
4744 if (strcmp(logfilename, "-") != 0) {
4754 signal(SIGPIPE, SIG_IGN);
4756 if (ffserver_daemon)
4759 if (http_server() < 0) {
4760 http_log("Could not start server\n");