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(ByteIOContext *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 (find_info_tag(buf, sizeof(buf), "date", info)) {
2139 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2141 } else if (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 (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 put_buffer(pb, header, 4);
2518 /* write RTP packet data */
2520 put_buffer(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 put_buffer(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?
3225 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3229 rtp_c = find_rtp_session_with_url(url, h->session_id);
3231 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3235 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3236 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3237 rtp_c->state != HTTPSTATE_READY) {
3238 rtsp_reply_error(c, RTSP_STATUS_STATE);
3242 rtp_c->state = HTTPSTATE_SEND_DATA;
3244 /* now everything is OK, so we can send the connection parameters */
3245 rtsp_reply_header(c, RTSP_STATUS_OK);
3247 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3248 url_fprintf(c->pb, "\r\n");
3251 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3255 rtp_c = find_rtp_session_with_url(url, h->session_id);
3257 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3261 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3262 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3263 rtsp_reply_error(c, RTSP_STATUS_STATE);
3267 rtp_c->state = HTTPSTATE_READY;
3268 rtp_c->first_pts = AV_NOPTS_VALUE;
3269 /* now everything is OK, so we can send the connection parameters */
3270 rtsp_reply_header(c, RTSP_STATUS_OK);
3272 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3273 url_fprintf(c->pb, "\r\n");
3276 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3279 char session_id[32];
3281 rtp_c = find_rtp_session_with_url(url, h->session_id);
3283 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3287 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
3289 /* abort the session */
3290 close_connection(rtp_c);
3292 /* now everything is OK, so we can send the connection parameters */
3293 rtsp_reply_header(c, RTSP_STATUS_OK);
3295 url_fprintf(c->pb, "Session: %s\r\n", session_id);
3296 url_fprintf(c->pb, "\r\n");
3300 /********************************************************************/
3303 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3304 FFStream *stream, const char *session_id,
3305 enum RTSPLowerTransport rtp_protocol)
3307 HTTPContext *c = NULL;
3308 const char *proto_str;
3310 /* XXX: should output a warning page when coming
3311 close to the connection limit */
3312 if (nb_connections >= nb_max_connections)
3315 /* add a new connection */
3316 c = av_mallocz(sizeof(HTTPContext));
3321 c->poll_entry = NULL;
3322 c->from_addr = *from_addr;
3323 c->buffer_size = IOBUFFER_INIT_SIZE;
3324 c->buffer = av_malloc(c->buffer_size);
3329 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3330 c->state = HTTPSTATE_READY;
3331 c->is_packetized = 1;
3332 c->rtp_protocol = rtp_protocol;
3334 /* protocol is shown in statistics */
3335 switch(c->rtp_protocol) {
3336 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3337 proto_str = "MCAST";
3339 case RTSP_LOWER_TRANSPORT_UDP:
3342 case RTSP_LOWER_TRANSPORT_TCP:
3349 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3350 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3352 current_bandwidth += stream->bandwidth;
3354 c->next = first_http_ctx;
3366 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3367 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3369 static int rtp_new_av_stream(HTTPContext *c,
3370 int stream_index, struct sockaddr_in *dest_addr,
3371 HTTPContext *rtsp_c)
3373 AVFormatContext *ctx;
3376 URLContext *h = NULL;
3378 int max_packet_size;
3380 /* now we can open the relevant output stream */
3381 ctx = avformat_alloc_context();
3384 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3386 st = av_mallocz(sizeof(AVStream));
3389 ctx->nb_streams = 1;
3390 ctx->streams[0] = st;
3392 if (!c->stream->feed ||
3393 c->stream->feed == c->stream)
3394 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3397 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3399 st->priv_data = NULL;
3401 /* build destination RTP address */
3402 ipaddr = inet_ntoa(dest_addr->sin_addr);
3404 switch(c->rtp_protocol) {
3405 case RTSP_LOWER_TRANSPORT_UDP:
3406 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3409 /* XXX: also pass as parameter to function ? */
3410 if (c->stream->is_multicast) {
3412 ttl = c->stream->multicast_ttl;
3415 snprintf(ctx->filename, sizeof(ctx->filename),
3416 "rtp://%s:%d?multicast=1&ttl=%d",
3417 ipaddr, ntohs(dest_addr->sin_port), ttl);
3419 snprintf(ctx->filename, sizeof(ctx->filename),
3420 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3423 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3425 c->rtp_handles[stream_index] = h;
3426 max_packet_size = url_get_max_packet_size(h);
3428 case RTSP_LOWER_TRANSPORT_TCP:
3431 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3437 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3438 ipaddr, ntohs(dest_addr->sin_port),
3439 c->stream->filename, stream_index, c->protocol);
3441 /* normally, no packets should be output here, but the packet size may be checked */
3442 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3443 /* XXX: close stream */
3446 av_set_parameters(ctx, NULL);
3447 if (av_write_header(ctx) < 0) {
3454 url_close_dyn_buf(ctx->pb, &dummy_buf);
3457 c->rtp_ctx[stream_index] = ctx;
3461 /********************************************************************/
3462 /* ffserver initialization */
3464 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3468 fst = av_mallocz(sizeof(AVStream));
3472 fst->codec= avcodec_alloc_context();
3473 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3474 if (codec->extradata_size) {
3475 fst->codec->extradata = av_malloc(codec->extradata_size);
3476 memcpy(fst->codec->extradata, codec->extradata,
3477 codec->extradata_size);
3480 /* live streams must use the actual feed's codec since it may be
3481 * updated later to carry extradata needed by the streams.
3485 fst->priv_data = av_mallocz(sizeof(FeedData));
3486 fst->index = stream->nb_streams;
3487 av_set_pts_info(fst, 33, 1, 90000);
3488 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3489 stream->streams[stream->nb_streams++] = fst;
3493 /* return the stream number in the feed */
3494 static int add_av_stream(FFStream *feed, AVStream *st)
3497 AVCodecContext *av, *av1;
3501 for(i=0;i<feed->nb_streams;i++) {
3502 st = feed->streams[i];
3504 if (av1->codec_id == av->codec_id &&
3505 av1->codec_type == av->codec_type &&
3506 av1->bit_rate == av->bit_rate) {
3508 switch(av->codec_type) {
3509 case AVMEDIA_TYPE_AUDIO:
3510 if (av1->channels == av->channels &&
3511 av1->sample_rate == av->sample_rate)
3514 case AVMEDIA_TYPE_VIDEO:
3515 if (av1->width == av->width &&
3516 av1->height == av->height &&
3517 av1->time_base.den == av->time_base.den &&
3518 av1->time_base.num == av->time_base.num &&
3519 av1->gop_size == av->gop_size)
3528 fst = add_av_stream1(feed, av, 0);
3531 return feed->nb_streams - 1;
3536 static void remove_stream(FFStream *stream)
3540 while (*ps != NULL) {
3548 /* specific mpeg4 handling : we extract the raw parameters */
3549 static void extract_mpeg4_header(AVFormatContext *infile)
3551 int mpeg4_count, i, size;
3557 for(i=0;i<infile->nb_streams;i++) {
3558 st = infile->streams[i];
3559 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3560 st->codec->extradata_size == 0) {
3567 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3568 while (mpeg4_count > 0) {
3569 if (av_read_packet(infile, &pkt) < 0)
3571 st = infile->streams[pkt.stream_index];
3572 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3573 st->codec->extradata_size == 0) {
3574 av_freep(&st->codec->extradata);
3575 /* fill extradata with the header */
3576 /* XXX: we make hard suppositions here ! */
3578 while (p < pkt.data + pkt.size - 4) {
3579 /* stop when vop header is found */
3580 if (p[0] == 0x00 && p[1] == 0x00 &&
3581 p[2] == 0x01 && p[3] == 0xb6) {
3582 size = p - pkt.data;
3583 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3584 st->codec->extradata = av_malloc(size);
3585 st->codec->extradata_size = size;
3586 memcpy(st->codec->extradata, pkt.data, size);
3593 av_free_packet(&pkt);
3597 /* compute the needed AVStream for each file */
3598 static void build_file_streams(void)
3600 FFStream *stream, *stream_next;
3601 AVFormatContext *infile;
3604 /* gather all streams */
3605 for(stream = first_stream; stream != NULL; stream = stream_next) {
3606 stream_next = stream->next;
3607 if (stream->stream_type == STREAM_TYPE_LIVE &&
3609 /* the stream comes from a file */
3610 /* try to open the file */
3612 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
3613 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3614 /* specific case : if transport stream output to RTP,
3615 we use a raw transport stream reader */
3616 stream->ap_in->mpeg2ts_raw = 1;
3617 stream->ap_in->mpeg2ts_compute_pcr = 1;
3620 http_log("Opening file '%s'\n", stream->feed_filename);
3621 if ((ret = av_open_input_file(&infile, stream->feed_filename,
3622 stream->ifmt, 0, stream->ap_in)) < 0) {
3623 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3624 /* remove stream (no need to spend more time on it) */
3626 remove_stream(stream);
3628 /* find all the AVStreams inside and reference them in
3630 if (av_find_stream_info(infile) < 0) {
3631 http_log("Could not find codec parameters from '%s'\n",
3632 stream->feed_filename);
3633 av_close_input_file(infile);
3636 extract_mpeg4_header(infile);
3638 for(i=0;i<infile->nb_streams;i++)
3639 add_av_stream1(stream, infile->streams[i]->codec, 1);
3641 av_close_input_file(infile);
3647 /* compute the needed AVStream for each feed */
3648 static void build_feed_streams(void)
3650 FFStream *stream, *feed;
3653 /* gather all streams */
3654 for(stream = first_stream; stream != NULL; stream = stream->next) {
3655 feed = stream->feed;
3657 if (!stream->is_feed) {
3658 /* we handle a stream coming from a feed */
3659 for(i=0;i<stream->nb_streams;i++)
3660 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3665 /* gather all streams */
3666 for(stream = first_stream; stream != NULL; stream = stream->next) {
3667 feed = stream->feed;
3669 if (stream->is_feed) {
3670 for(i=0;i<stream->nb_streams;i++)
3671 stream->feed_streams[i] = i;
3676 /* create feed files if needed */
3677 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3680 if (url_exist(feed->feed_filename)) {
3681 /* See if it matches */
3685 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3686 /* Now see if it matches */
3687 if (s->nb_streams == feed->nb_streams) {
3689 for(i=0;i<s->nb_streams;i++) {
3691 sf = feed->streams[i];
3694 if (sf->index != ss->index ||
3696 http_log("Index & Id do not match for stream %d (%s)\n",
3697 i, feed->feed_filename);
3700 AVCodecContext *ccf, *ccs;
3704 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3706 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3707 http_log("Codecs do not match for stream %d\n", i);
3709 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3710 http_log("Codec bitrates do not match for stream %d\n", i);
3712 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3713 if (CHECK_CODEC(time_base.den) ||
3714 CHECK_CODEC(time_base.num) ||
3715 CHECK_CODEC(width) ||
3716 CHECK_CODEC(height)) {
3717 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3720 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3721 if (CHECK_CODEC(sample_rate) ||
3722 CHECK_CODEC(channels) ||
3723 CHECK_CODEC(frame_size)) {
3724 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3728 http_log("Unknown codec type\n");
3736 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3737 feed->feed_filename, s->nb_streams, feed->nb_streams);
3739 av_close_input_file(s);
3741 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3742 feed->feed_filename);
3745 if (feed->readonly) {
3746 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3747 feed->feed_filename);
3750 unlink(feed->feed_filename);
3753 if (!url_exist(feed->feed_filename)) {
3754 AVFormatContext s1 = {0}, *s = &s1;
3756 if (feed->readonly) {
3757 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3758 feed->feed_filename);
3762 /* only write the header of the ffm file */
3763 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
3764 http_log("Could not open output feed file '%s'\n",
3765 feed->feed_filename);
3768 s->oformat = feed->fmt;
3769 s->nb_streams = feed->nb_streams;
3770 for(i=0;i<s->nb_streams;i++) {
3772 st = feed->streams[i];
3775 av_set_parameters(s, NULL);
3776 if (av_write_header(s) < 0) {
3777 http_log("Container doesn't supports the required parameters\n");
3780 /* XXX: need better api */
3781 av_freep(&s->priv_data);
3784 /* get feed size and write index */
3785 fd = open(feed->feed_filename, O_RDONLY);
3787 http_log("Could not open output feed file '%s'\n",
3788 feed->feed_filename);
3792 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3793 feed->feed_size = lseek(fd, 0, SEEK_END);
3794 /* ensure that we do not wrap before the end of file */
3795 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3796 feed->feed_max_size = feed->feed_size;
3802 /* compute the bandwidth used by each stream */
3803 static void compute_bandwidth(void)
3809 for(stream = first_stream; stream != NULL; stream = stream->next) {
3811 for(i=0;i<stream->nb_streams;i++) {
3812 AVStream *st = stream->streams[i];
3813 switch(st->codec->codec_type) {
3814 case AVMEDIA_TYPE_AUDIO:
3815 case AVMEDIA_TYPE_VIDEO:
3816 bandwidth += st->codec->bit_rate;
3822 stream->bandwidth = (bandwidth + 999) / 1000;
3826 /* add a codec and set the default parameters */
3827 static void add_codec(FFStream *stream, AVCodecContext *av)
3831 /* compute default parameters */
3832 switch(av->codec_type) {
3833 case AVMEDIA_TYPE_AUDIO:
3834 if (av->bit_rate == 0)
3835 av->bit_rate = 64000;
3836 if (av->sample_rate == 0)
3837 av->sample_rate = 22050;
3838 if (av->channels == 0)
3841 case AVMEDIA_TYPE_VIDEO:
3842 if (av->bit_rate == 0)
3843 av->bit_rate = 64000;
3844 if (av->time_base.num == 0){
3845 av->time_base.den = 5;
3846 av->time_base.num = 1;
3848 if (av->width == 0 || av->height == 0) {
3852 /* Bitrate tolerance is less for streaming */
3853 if (av->bit_rate_tolerance == 0)
3854 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3855 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3860 if (av->max_qdiff == 0)
3862 av->qcompress = 0.5;
3865 if (!av->nsse_weight)
3866 av->nsse_weight = 8;
3868 av->frame_skip_cmp = FF_CMP_DCTMAX;
3870 av->me_method = ME_EPZS;
3871 av->rc_buffer_aggressivity = 1.0;
3874 av->rc_eq = "tex^qComp";
3875 if (!av->i_quant_factor)
3876 av->i_quant_factor = -0.8;
3877 if (!av->b_quant_factor)
3878 av->b_quant_factor = 1.25;
3879 if (!av->b_quant_offset)
3880 av->b_quant_offset = 1.25;
3881 if (!av->rc_max_rate)
3882 av->rc_max_rate = av->bit_rate * 2;
3884 if (av->rc_max_rate && !av->rc_buffer_size) {
3885 av->rc_buffer_size = av->rc_max_rate;
3894 st = av_mallocz(sizeof(AVStream));
3897 st->codec = avcodec_alloc_context();
3898 stream->streams[stream->nb_streams++] = st;
3899 memcpy(st->codec, av, sizeof(AVCodecContext));
3902 static enum CodecID opt_audio_codec(const char *arg)
3904 AVCodec *p= avcodec_find_encoder_by_name(arg);
3906 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3907 return CODEC_ID_NONE;
3912 static enum CodecID opt_video_codec(const char *arg)
3914 AVCodec *p= avcodec_find_encoder_by_name(arg);
3916 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3917 return CODEC_ID_NONE;
3922 /* simplistic plugin support */
3925 static void load_module(const char *filename)
3928 void (*init_func)(void);
3929 dll = dlopen(filename, RTLD_NOW);
3931 fprintf(stderr, "Could not load module '%s' - %s\n",
3932 filename, dlerror());
3936 init_func = dlsym(dll, "ffserver_module_init");
3939 "%s: init function 'ffserver_module_init()' not found\n",
3948 static int ffserver_opt_default(const char *opt, const char *arg,
3949 AVCodecContext *avctx, int type)
3952 const AVOption *o = av_find_opt(avctx, opt, NULL, type, type);
3954 ret = av_set_string3(avctx, opt, arg, 1, NULL);
3958 static int ffserver_opt_preset(const char *arg,
3959 AVCodecContext *avctx, int type,
3960 enum CodecID *audio_id, enum CodecID *video_id)
3963 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3965 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3967 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3968 codec ? codec->name : NULL))) {
3969 fprintf(stderr, "File for preset '%s' not found\n", arg);
3974 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3975 if(line[0] == '#' && !e)
3977 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3979 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
3983 if(!strcmp(tmp, "acodec")){
3984 *audio_id = opt_audio_codec(tmp2);
3985 }else if(!strcmp(tmp, "vcodec")){
3986 *video_id = opt_video_codec(tmp2);
3987 }else if(!strcmp(tmp, "scodec")){
3988 /* opt_subtitle_codec(tmp2); */
3989 }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){
3990 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
4001 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
4002 const char *mime_type)
4004 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
4007 AVOutputFormat *stream_fmt;
4008 char stream_format_name[64];
4010 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
4011 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
4020 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
4024 fprintf(stderr, "%s:%d: ", filename, line_num);
4025 vfprintf(stderr, fmt, vl);
4031 static int parse_ffconfig(const char *filename)
4038 int val, errors, line_num;
4039 FFStream **last_stream, *stream, *redirect;
4040 FFStream **last_feed, *feed, *s;
4041 AVCodecContext audio_enc, video_enc;
4042 enum CodecID audio_id, video_id;
4044 f = fopen(filename, "r");
4052 first_stream = NULL;
4053 last_stream = &first_stream;
4055 last_feed = &first_feed;
4059 audio_id = CODEC_ID_NONE;
4060 video_id = CODEC_ID_NONE;
4062 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4064 if (fgets(line, sizeof(line), f) == NULL)
4070 if (*p == '\0' || *p == '#')
4073 get_arg(cmd, sizeof(cmd), &p);
4075 if (!strcasecmp(cmd, "Port")) {
4076 get_arg(arg, sizeof(arg), &p);
4078 if (val < 1 || val > 65536) {
4079 ERROR("Invalid_port: %s\n", arg);
4081 my_http_addr.sin_port = htons(val);
4082 } else if (!strcasecmp(cmd, "BindAddress")) {
4083 get_arg(arg, sizeof(arg), &p);
4084 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4085 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4087 } else if (!strcasecmp(cmd, "NoDaemon")) {
4088 ffserver_daemon = 0;
4089 } else if (!strcasecmp(cmd, "RTSPPort")) {
4090 get_arg(arg, sizeof(arg), &p);
4092 if (val < 1 || val > 65536) {
4093 ERROR("%s:%d: Invalid port: %s\n", arg);
4095 my_rtsp_addr.sin_port = htons(atoi(arg));
4096 } else if (!strcasecmp(cmd, "RTSPBindAddress")) {
4097 get_arg(arg, sizeof(arg), &p);
4098 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4099 ERROR("Invalid host/IP address: %s\n", arg);
4101 } else if (!strcasecmp(cmd, "MaxHTTPConnections")) {
4102 get_arg(arg, sizeof(arg), &p);
4104 if (val < 1 || val > 65536) {
4105 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4107 nb_max_http_connections = val;
4108 } else if (!strcasecmp(cmd, "MaxClients")) {
4109 get_arg(arg, sizeof(arg), &p);
4111 if (val < 1 || val > nb_max_http_connections) {
4112 ERROR("Invalid MaxClients: %s\n", arg);
4114 nb_max_connections = val;
4116 } else if (!strcasecmp(cmd, "MaxBandwidth")) {
4118 get_arg(arg, sizeof(arg), &p);
4120 if (llval < 10 || llval > 10000000) {
4121 ERROR("Invalid MaxBandwidth: %s\n", arg);
4123 max_bandwidth = llval;
4124 } else if (!strcasecmp(cmd, "CustomLog")) {
4125 if (!ffserver_debug)
4126 get_arg(logfilename, sizeof(logfilename), &p);
4127 } else if (!strcasecmp(cmd, "<Feed")) {
4128 /*********************************************/
4129 /* Feed related options */
4131 if (stream || feed) {
4132 ERROR("Already in a tag\n");
4134 feed = av_mallocz(sizeof(FFStream));
4135 get_arg(feed->filename, sizeof(feed->filename), &p);
4136 q = strrchr(feed->filename, '>');
4140 for (s = first_feed; s; s = s->next) {
4141 if (!strcmp(feed->filename, s->filename)) {
4142 ERROR("Feed '%s' already registered\n", s->filename);
4146 feed->fmt = av_guess_format("ffm", NULL, NULL);
4147 /* defaut feed file */
4148 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4149 "/tmp/%s.ffm", feed->filename);
4150 feed->feed_max_size = 5 * 1024 * 1024;
4152 feed->feed = feed; /* self feeding :-) */
4154 /* add in stream list */
4155 *last_stream = feed;
4156 last_stream = &feed->next;
4157 /* add in feed list */
4159 last_feed = &feed->next_feed;
4161 } else if (!strcasecmp(cmd, "Launch")) {
4165 feed->child_argv = av_mallocz(64 * sizeof(char *));
4167 for (i = 0; i < 62; i++) {
4168 get_arg(arg, sizeof(arg), &p);
4172 feed->child_argv[i] = av_strdup(arg);
4175 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4177 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4179 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4180 inet_ntoa(my_http_addr.sin_addr),
4181 ntohs(my_http_addr.sin_port), feed->filename);
4183 } else if (!strcasecmp(cmd, "ReadOnlyFile")) {
4185 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4187 } else if (stream) {
4188 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4190 } else if (!strcasecmp(cmd, "File")) {
4192 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4194 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4195 } else if (!strcasecmp(cmd, "Truncate")) {
4197 get_arg(arg, sizeof(arg), &p);
4198 feed->truncate = strtod(arg, NULL);
4200 } else if (!strcasecmp(cmd, "FileMaxSize")) {
4205 get_arg(arg, sizeof(arg), &p);
4207 fsize = strtod(p1, &p1);
4208 switch(toupper(*p1)) {
4213 fsize *= 1024 * 1024;
4216 fsize *= 1024 * 1024 * 1024;
4219 feed->feed_max_size = (int64_t)fsize;
4220 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4221 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4224 } else if (!strcasecmp(cmd, "</Feed>")) {
4226 ERROR("No corresponding <Feed> for </Feed>\n");
4229 } else if (!strcasecmp(cmd, "<Stream")) {
4230 /*********************************************/
4231 /* Stream related options */
4233 if (stream || feed) {
4234 ERROR("Already in a tag\n");
4237 stream = av_mallocz(sizeof(FFStream));
4238 get_arg(stream->filename, sizeof(stream->filename), &p);
4239 q = strrchr(stream->filename, '>');
4243 for (s = first_stream; s; s = s->next) {
4244 if (!strcmp(stream->filename, s->filename)) {
4245 ERROR("Stream '%s' already registered\n", s->filename);
4249 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4250 avcodec_get_context_defaults2(&video_enc, AVMEDIA_TYPE_VIDEO);
4251 avcodec_get_context_defaults2(&audio_enc, AVMEDIA_TYPE_AUDIO);
4252 audio_id = CODEC_ID_NONE;
4253 video_id = CODEC_ID_NONE;
4255 audio_id = stream->fmt->audio_codec;
4256 video_id = stream->fmt->video_codec;
4259 *last_stream = stream;
4260 last_stream = &stream->next;
4262 } else if (!strcasecmp(cmd, "Feed")) {
4263 get_arg(arg, sizeof(arg), &p);
4268 while (sfeed != NULL) {
4269 if (!strcmp(sfeed->filename, arg))
4271 sfeed = sfeed->next_feed;
4274 ERROR("feed '%s' not defined\n", arg);
4276 stream->feed = sfeed;
4278 } else if (!strcasecmp(cmd, "Format")) {
4279 get_arg(arg, sizeof(arg), &p);
4281 if (!strcmp(arg, "status")) {
4282 stream->stream_type = STREAM_TYPE_STATUS;
4285 stream->stream_type = STREAM_TYPE_LIVE;
4286 /* jpeg cannot be used here, so use single frame jpeg */
4287 if (!strcmp(arg, "jpeg"))
4288 strcpy(arg, "mjpeg");
4289 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4291 ERROR("Unknown Format: %s\n", arg);
4295 audio_id = stream->fmt->audio_codec;
4296 video_id = stream->fmt->video_codec;
4299 } else if (!strcasecmp(cmd, "InputFormat")) {
4300 get_arg(arg, sizeof(arg), &p);
4302 stream->ifmt = av_find_input_format(arg);
4303 if (!stream->ifmt) {
4304 ERROR("Unknown input format: %s\n", arg);
4307 } else if (!strcasecmp(cmd, "FaviconURL")) {
4308 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4309 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4311 ERROR("FaviconURL only permitted for status streams\n");
4313 } else if (!strcasecmp(cmd, "Author")) {
4315 get_arg(stream->author, sizeof(stream->author), &p);
4316 } else if (!strcasecmp(cmd, "Comment")) {
4318 get_arg(stream->comment, sizeof(stream->comment), &p);
4319 } else if (!strcasecmp(cmd, "Copyright")) {
4321 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4322 } else if (!strcasecmp(cmd, "Title")) {
4324 get_arg(stream->title, sizeof(stream->title), &p);
4325 } else if (!strcasecmp(cmd, "Preroll")) {
4326 get_arg(arg, sizeof(arg), &p);
4328 stream->prebuffer = atof(arg) * 1000;
4329 } else if (!strcasecmp(cmd, "StartSendOnKey")) {
4331 stream->send_on_key = 1;
4332 } else if (!strcasecmp(cmd, "AudioCodec")) {
4333 get_arg(arg, sizeof(arg), &p);
4334 audio_id = opt_audio_codec(arg);
4335 if (audio_id == CODEC_ID_NONE) {
4336 ERROR("Unknown AudioCodec: %s\n", arg);
4338 } else if (!strcasecmp(cmd, "VideoCodec")) {
4339 get_arg(arg, sizeof(arg), &p);
4340 video_id = opt_video_codec(arg);
4341 if (video_id == CODEC_ID_NONE) {
4342 ERROR("Unknown VideoCodec: %s\n", arg);
4344 } else if (!strcasecmp(cmd, "MaxTime")) {
4345 get_arg(arg, sizeof(arg), &p);
4347 stream->max_time = atof(arg) * 1000;
4348 } else if (!strcasecmp(cmd, "AudioBitRate")) {
4349 get_arg(arg, sizeof(arg), &p);
4351 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4352 } else if (!strcasecmp(cmd, "AudioChannels")) {
4353 get_arg(arg, sizeof(arg), &p);
4355 audio_enc.channels = atoi(arg);
4356 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
4357 get_arg(arg, sizeof(arg), &p);
4359 audio_enc.sample_rate = atoi(arg);
4360 } else if (!strcasecmp(cmd, "AudioQuality")) {
4361 get_arg(arg, sizeof(arg), &p);
4363 // audio_enc.quality = atof(arg) * 1000;
4365 } else if (!strcasecmp(cmd, "VideoBitRateRange")) {
4367 int minrate, maxrate;
4369 get_arg(arg, sizeof(arg), &p);
4371 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4372 video_enc.rc_min_rate = minrate * 1000;
4373 video_enc.rc_max_rate = maxrate * 1000;
4375 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4378 } else if (!strcasecmp(cmd, "Debug")) {
4380 get_arg(arg, sizeof(arg), &p);
4381 video_enc.debug = strtol(arg,0,0);
4383 } else if (!strcasecmp(cmd, "Strict")) {
4385 get_arg(arg, sizeof(arg), &p);
4386 video_enc.strict_std_compliance = atoi(arg);
4388 } else if (!strcasecmp(cmd, "VideoBufferSize")) {
4390 get_arg(arg, sizeof(arg), &p);
4391 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4393 } else if (!strcasecmp(cmd, "VideoBitRateTolerance")) {
4395 get_arg(arg, sizeof(arg), &p);
4396 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4398 } else if (!strcasecmp(cmd, "VideoBitRate")) {
4399 get_arg(arg, sizeof(arg), &p);
4401 video_enc.bit_rate = atoi(arg) * 1000;
4403 } else if (!strcasecmp(cmd, "VideoSize")) {
4404 get_arg(arg, sizeof(arg), &p);
4406 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4407 if ((video_enc.width % 16) != 0 ||
4408 (video_enc.height % 16) != 0) {
4409 ERROR("Image size must be a multiple of 16\n");
4412 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
4413 get_arg(arg, sizeof(arg), &p);
4415 AVRational frame_rate;
4416 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4417 ERROR("Incorrect frame rate: %s\n", arg);
4419 video_enc.time_base.num = frame_rate.den;
4420 video_enc.time_base.den = frame_rate.num;
4423 } else if (!strcasecmp(cmd, "VideoGopSize")) {
4424 get_arg(arg, sizeof(arg), &p);
4426 video_enc.gop_size = atoi(arg);
4427 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
4429 video_enc.gop_size = 1;
4430 } else if (!strcasecmp(cmd, "VideoHighQuality")) {
4432 video_enc.mb_decision = FF_MB_DECISION_BITS;
4433 } else if (!strcasecmp(cmd, "Video4MotionVector")) {
4435 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4436 video_enc.flags |= CODEC_FLAG_4MV;
4438 } else if (!strcasecmp(cmd, "AVOptionVideo") ||
4439 !strcasecmp(cmd, "AVOptionAudio")) {
4441 AVCodecContext *avctx;
4443 get_arg(arg, sizeof(arg), &p);
4444 get_arg(arg2, sizeof(arg2), &p);
4445 if (!strcasecmp(cmd, "AVOptionVideo")) {
4447 type = AV_OPT_FLAG_VIDEO_PARAM;
4450 type = AV_OPT_FLAG_AUDIO_PARAM;
4452 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4453 ERROR("AVOption error: %s %s\n", arg, arg2);
4455 } else if (!strcasecmp(cmd, "AVPresetVideo") ||
4456 !strcasecmp(cmd, "AVPresetAudio")) {
4457 AVCodecContext *avctx;
4459 get_arg(arg, sizeof(arg), &p);
4460 if (!strcasecmp(cmd, "AVPresetVideo")) {
4462 video_enc.codec_id = video_id;
4463 type = AV_OPT_FLAG_VIDEO_PARAM;
4466 audio_enc.codec_id = audio_id;
4467 type = AV_OPT_FLAG_AUDIO_PARAM;
4469 if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4470 ERROR("AVPreset error: %s\n", arg);
4472 } else if (!strcasecmp(cmd, "VideoTag")) {
4473 get_arg(arg, sizeof(arg), &p);
4474 if ((strlen(arg) == 4) && stream)
4475 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4476 } else if (!strcasecmp(cmd, "BitExact")) {
4478 video_enc.flags |= CODEC_FLAG_BITEXACT;
4479 } else if (!strcasecmp(cmd, "DctFastint")) {
4481 video_enc.dct_algo = FF_DCT_FASTINT;
4482 } else if (!strcasecmp(cmd, "IdctSimple")) {
4484 video_enc.idct_algo = FF_IDCT_SIMPLE;
4485 } else if (!strcasecmp(cmd, "Qscale")) {
4486 get_arg(arg, sizeof(arg), &p);
4488 video_enc.flags |= CODEC_FLAG_QSCALE;
4489 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4491 } else if (!strcasecmp(cmd, "VideoQDiff")) {
4492 get_arg(arg, sizeof(arg), &p);
4494 video_enc.max_qdiff = atoi(arg);
4495 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4496 ERROR("VideoQDiff out of range\n");
4499 } else if (!strcasecmp(cmd, "VideoQMax")) {
4500 get_arg(arg, sizeof(arg), &p);
4502 video_enc.qmax = atoi(arg);
4503 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4504 ERROR("VideoQMax out of range\n");
4507 } else if (!strcasecmp(cmd, "VideoQMin")) {
4508 get_arg(arg, sizeof(arg), &p);
4510 video_enc.qmin = atoi(arg);
4511 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4512 ERROR("VideoQMin out of range\n");
4515 } else if (!strcasecmp(cmd, "LumaElim")) {
4516 get_arg(arg, sizeof(arg), &p);
4518 video_enc.luma_elim_threshold = atoi(arg);
4519 } else if (!strcasecmp(cmd, "ChromaElim")) {
4520 get_arg(arg, sizeof(arg), &p);
4522 video_enc.chroma_elim_threshold = atoi(arg);
4523 } else if (!strcasecmp(cmd, "LumiMask")) {
4524 get_arg(arg, sizeof(arg), &p);
4526 video_enc.lumi_masking = atof(arg);
4527 } else if (!strcasecmp(cmd, "DarkMask")) {
4528 get_arg(arg, sizeof(arg), &p);
4530 video_enc.dark_masking = atof(arg);
4531 } else if (!strcasecmp(cmd, "NoVideo")) {
4532 video_id = CODEC_ID_NONE;
4533 } else if (!strcasecmp(cmd, "NoAudio")) {
4534 audio_id = CODEC_ID_NONE;
4535 } else if (!strcasecmp(cmd, "ACL")) {
4536 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4537 } else if (!strcasecmp(cmd, "DynamicACL")) {
4539 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4541 } else if (!strcasecmp(cmd, "RTSPOption")) {
4542 get_arg(arg, sizeof(arg), &p);
4544 av_freep(&stream->rtsp_option);
4545 stream->rtsp_option = av_strdup(arg);
4547 } else if (!strcasecmp(cmd, "MulticastAddress")) {
4548 get_arg(arg, sizeof(arg), &p);
4550 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4551 ERROR("Invalid host/IP address: %s\n", arg);
4553 stream->is_multicast = 1;
4554 stream->loop = 1; /* default is looping */
4556 } else if (!strcasecmp(cmd, "MulticastPort")) {
4557 get_arg(arg, sizeof(arg), &p);
4559 stream->multicast_port = atoi(arg);
4560 } else if (!strcasecmp(cmd, "MulticastTTL")) {
4561 get_arg(arg, sizeof(arg), &p);
4563 stream->multicast_ttl = atoi(arg);
4564 } else if (!strcasecmp(cmd, "NoLoop")) {
4567 } else if (!strcasecmp(cmd, "</Stream>")) {
4569 ERROR("No corresponding <Stream> for </Stream>\n");
4571 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4572 if (audio_id != CODEC_ID_NONE) {
4573 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4574 audio_enc.codec_id = audio_id;
4575 add_codec(stream, &audio_enc);
4577 if (video_id != CODEC_ID_NONE) {
4578 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4579 video_enc.codec_id = video_id;
4580 add_codec(stream, &video_enc);
4585 } else if (!strcasecmp(cmd, "<Redirect")) {
4586 /*********************************************/
4588 if (stream || feed || redirect) {
4589 ERROR("Already in a tag\n");
4591 redirect = av_mallocz(sizeof(FFStream));
4592 *last_stream = redirect;
4593 last_stream = &redirect->next;
4595 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4596 q = strrchr(redirect->filename, '>');
4599 redirect->stream_type = STREAM_TYPE_REDIRECT;
4601 } else if (!strcasecmp(cmd, "URL")) {
4603 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4604 } else if (!strcasecmp(cmd, "</Redirect>")) {
4606 ERROR("No corresponding <Redirect> for </Redirect>\n");
4608 if (!redirect->feed_filename[0]) {
4609 ERROR("No URL found for <Redirect>\n");
4613 } else if (!strcasecmp(cmd, "LoadModule")) {
4614 get_arg(arg, sizeof(arg), &p);
4618 ERROR("Module support not compiled into this version: '%s'\n", arg);
4621 ERROR("Incorrect keyword: '%s'\n", cmd);
4633 static void handle_child_exit(int sig)
4638 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4641 for (feed = first_feed; feed; feed = feed->next) {
4642 if (feed->pid == pid) {
4643 int uptime = time(0) - feed->pid_start;
4646 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4649 /* Turn off any more restarts */
4650 feed->child_argv = 0;
4655 need_to_start_children = 1;
4658 static void opt_debug(void)
4661 ffserver_daemon = 0;
4662 logfilename[0] = '-';
4665 static void show_help(void)
4667 printf("usage: ffserver [options]\n"
4668 "Hyper fast multi format Audio/Video streaming server\n");
4670 show_help_options(options, "Main options:\n", 0, 0);
4673 static const OptionDef options[] = {
4674 #include "cmdutils_common_opts.h"
4675 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4676 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4677 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4681 int main(int argc, char **argv)
4683 struct sigaction sigact;
4689 my_program_name = argv[0];
4690 my_program_dir = getcwd(0, 0);
4691 ffserver_daemon = 1;
4693 parse_options(argc, argv, options, NULL);
4695 unsetenv("http_proxy"); /* Kill the http_proxy */
4697 av_lfg_init(&random_state, av_get_random_seed());
4699 memset(&sigact, 0, sizeof(sigact));
4700 sigact.sa_handler = handle_child_exit;
4701 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4702 sigaction(SIGCHLD, &sigact, 0);
4704 if (parse_ffconfig(config_filename) < 0) {
4705 fprintf(stderr, "Incorrect config file - exiting.\n");
4709 /* open log file if needed */
4710 if (logfilename[0] != '\0') {
4711 if (!strcmp(logfilename, "-"))
4714 logfile = fopen(logfilename, "a");
4715 av_log_set_callback(http_av_log);
4718 build_file_streams();
4720 build_feed_streams();
4722 compute_bandwidth();
4724 /* put the process in background and detach it from its TTY */
4725 if (ffserver_daemon) {
4732 } else if (pid > 0) {
4739 open("/dev/null", O_RDWR);
4740 if (strcmp(logfilename, "-") != 0) {
4750 signal(SIGPIPE, SIG_IGN);
4752 if (ffserver_daemon)
4755 if (http_server() < 0) {
4756 http_log("Could not start server\n");