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 "libavcore/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 stream_pos = parse_date(buf, 0);
2140 if (stream_pos == INT64_MIN)
2142 } else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
2143 int prebuffer = strtol(buf, 0, 10);
2144 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2146 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2148 strcpy(input_filename, c->stream->feed_filename);
2150 /* compute position (relative time) */
2151 if (find_info_tag(buf, sizeof(buf), "date", info)) {
2152 stream_pos = parse_date(buf, 1);
2153 if (stream_pos == INT64_MIN)
2158 if (input_filename[0] == '\0')
2162 if ((ret = av_open_input_file(&s, input_filename, c->stream->ifmt,
2163 buf_size, c->stream->ap_in)) < 0) {
2164 http_log("could not open %s: %d\n", input_filename, ret);
2167 s->flags |= AVFMT_FLAG_GENPTS;
2169 if (strcmp(s->iformat->name, "ffm") && av_find_stream_info(c->fmt_in) < 0) {
2170 http_log("Could not find stream info '%s'\n", input_filename);
2171 av_close_input_file(s);
2175 /* open each parser */
2176 for(i=0;i<s->nb_streams;i++)
2179 /* choose stream as clock source (we favorize video stream if
2180 present) for packet sending */
2181 c->pts_stream_index = 0;
2182 for(i=0;i<c->stream->nb_streams;i++) {
2183 if (c->pts_stream_index == 0 &&
2184 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2185 c->pts_stream_index = i;
2190 if (c->fmt_in->iformat->read_seek)
2191 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2193 /* set the start time (needed for maxtime and RTP packet timing) */
2194 c->start_time = cur_time;
2195 c->first_pts = AV_NOPTS_VALUE;
2199 /* return the server clock (in us) */
2200 static int64_t get_server_clock(HTTPContext *c)
2202 /* compute current pts value from system time */
2203 return (cur_time - c->start_time) * 1000;
2206 /* return the estimated time at which the current packet must be sent
2208 static int64_t get_packet_send_clock(HTTPContext *c)
2210 int bytes_left, bytes_sent, frame_bytes;
2212 frame_bytes = c->cur_frame_bytes;
2213 if (frame_bytes <= 0)
2216 bytes_left = c->buffer_end - c->buffer_ptr;
2217 bytes_sent = frame_bytes - bytes_left;
2218 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2223 static int http_prepare_data(HTTPContext *c)
2226 AVFormatContext *ctx;
2228 av_freep(&c->pb_buffer);
2230 case HTTPSTATE_SEND_DATA_HEADER:
2231 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2232 av_metadata_set2(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2233 av_metadata_set2(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2234 av_metadata_set2(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2235 av_metadata_set2(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2237 for(i=0;i<c->stream->nb_streams;i++) {
2240 st = av_mallocz(sizeof(AVStream));
2241 c->fmt_ctx.streams[i] = st;
2242 /* if file or feed, then just take streams from FFStream struct */
2243 if (!c->stream->feed ||
2244 c->stream->feed == c->stream)
2245 src = c->stream->streams[i];
2247 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2251 st->codec->frame_number = 0; /* XXX: should be done in
2252 AVStream, not in codec */
2254 /* set output format parameters */
2255 c->fmt_ctx.oformat = c->stream->fmt;
2256 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2258 c->got_key_frame = 0;
2260 /* prepare header and save header data in a stream */
2261 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2262 /* XXX: potential leak */
2265 c->fmt_ctx.pb->is_streamed = 1;
2268 * HACK to avoid mpeg ps muxer to spit many underflow errors
2269 * Default value from FFmpeg
2270 * Try to set it use configuration option
2272 c->fmt_ctx.preload = (int)(0.5*AV_TIME_BASE);
2273 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2275 av_set_parameters(&c->fmt_ctx, NULL);
2276 if (av_write_header(&c->fmt_ctx) < 0) {
2277 http_log("Error writing output header\n");
2280 av_metadata_free(&c->fmt_ctx.metadata);
2282 len = url_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2283 c->buffer_ptr = c->pb_buffer;
2284 c->buffer_end = c->pb_buffer + len;
2286 c->state = HTTPSTATE_SEND_DATA;
2287 c->last_packet_sent = 0;
2289 case HTTPSTATE_SEND_DATA:
2290 /* find a new packet */
2291 /* read a packet from the input stream */
2292 if (c->stream->feed)
2293 ffm_set_write_index(c->fmt_in,
2294 c->stream->feed->feed_write_index,
2295 c->stream->feed->feed_size);
2297 if (c->stream->max_time &&
2298 c->stream->max_time + c->start_time - cur_time < 0)
2299 /* We have timed out */
2300 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2304 ret = av_read_frame(c->fmt_in, &pkt);
2306 if (c->stream->feed) {
2307 /* if coming from feed, it means we reached the end of the
2308 ffm file, so must wait for more data */
2309 c->state = HTTPSTATE_WAIT_FEED;
2310 return 1; /* state changed */
2311 } else if (ret == AVERROR(EAGAIN)) {
2312 /* input not ready, come back later */
2315 if (c->stream->loop) {
2316 av_close_input_file(c->fmt_in);
2318 if (open_input_stream(c, "") < 0)
2323 /* must send trailer now because eof or error */
2324 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2328 int source_index = pkt.stream_index;
2329 /* update first pts if needed */
2330 if (c->first_pts == AV_NOPTS_VALUE) {
2331 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2332 c->start_time = cur_time;
2334 /* send it to the appropriate stream */
2335 if (c->stream->feed) {
2336 /* if coming from a feed, select the right stream */
2337 if (c->switch_pending) {
2338 c->switch_pending = 0;
2339 for(i=0;i<c->stream->nb_streams;i++) {
2340 if (c->switch_feed_streams[i] == pkt.stream_index)
2341 if (pkt.flags & AV_PKT_FLAG_KEY)
2342 c->switch_feed_streams[i] = -1;
2343 if (c->switch_feed_streams[i] >= 0)
2344 c->switch_pending = 1;
2347 for(i=0;i<c->stream->nb_streams;i++) {
2348 if (c->stream->feed_streams[i] == pkt.stream_index) {
2349 AVStream *st = c->fmt_in->streams[source_index];
2350 pkt.stream_index = i;
2351 if (pkt.flags & AV_PKT_FLAG_KEY &&
2352 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2353 c->stream->nb_streams == 1))
2354 c->got_key_frame = 1;
2355 if (!c->stream->send_on_key || c->got_key_frame)
2360 AVCodecContext *codec;
2361 AVStream *ist, *ost;
2363 ist = c->fmt_in->streams[source_index];
2364 /* specific handling for RTP: we use several
2365 output stream (one for each RTP
2366 connection). XXX: need more abstract handling */
2367 if (c->is_packetized) {
2368 /* compute send time and duration */
2369 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2370 c->cur_pts -= c->first_pts;
2371 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2372 /* find RTP context */
2373 c->packet_stream_index = pkt.stream_index;
2374 ctx = c->rtp_ctx[c->packet_stream_index];
2376 av_free_packet(&pkt);
2379 codec = ctx->streams[0]->codec;
2380 /* only one stream per RTP connection */
2381 pkt.stream_index = 0;
2385 codec = ctx->streams[pkt.stream_index]->codec;
2388 if (c->is_packetized) {
2389 int max_packet_size;
2390 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2391 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2393 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
2394 ret = url_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2396 ret = url_open_dyn_buf(&ctx->pb);
2399 /* XXX: potential leak */
2402 ost = ctx->streams[pkt.stream_index];
2404 ctx->pb->is_streamed = 1;
2405 if (pkt.dts != AV_NOPTS_VALUE)
2406 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2407 if (pkt.pts != AV_NOPTS_VALUE)
2408 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2409 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2410 if (av_write_frame(ctx, &pkt) < 0) {
2411 http_log("Error writing frame to output\n");
2412 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2415 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2416 c->cur_frame_bytes = len;
2417 c->buffer_ptr = c->pb_buffer;
2418 c->buffer_end = c->pb_buffer + len;
2420 codec->frame_number++;
2422 av_free_packet(&pkt);
2426 av_free_packet(&pkt);
2431 case HTTPSTATE_SEND_DATA_TRAILER:
2432 /* last packet test ? */
2433 if (c->last_packet_sent || c->is_packetized)
2436 /* prepare header */
2437 if (url_open_dyn_buf(&ctx->pb) < 0) {
2438 /* XXX: potential leak */
2441 c->fmt_ctx.pb->is_streamed = 1;
2442 av_write_trailer(ctx);
2443 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2444 c->buffer_ptr = c->pb_buffer;
2445 c->buffer_end = c->pb_buffer + len;
2447 c->last_packet_sent = 1;
2453 /* should convert the format at the same time */
2454 /* send data starting at c->buffer_ptr to the output connection
2455 (either UDP or TCP connection) */
2456 static int http_send_data(HTTPContext *c)
2461 if (c->buffer_ptr >= c->buffer_end) {
2462 ret = http_prepare_data(c);
2466 /* state change requested */
2469 if (c->is_packetized) {
2470 /* RTP data output */
2471 len = c->buffer_end - c->buffer_ptr;
2473 /* fail safe - should never happen */
2475 c->buffer_ptr = c->buffer_end;
2478 len = (c->buffer_ptr[0] << 24) |
2479 (c->buffer_ptr[1] << 16) |
2480 (c->buffer_ptr[2] << 8) |
2482 if (len > (c->buffer_end - c->buffer_ptr))
2484 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2485 /* nothing to send yet: we can wait */
2489 c->data_count += len;
2490 update_datarate(&c->datarate, c->data_count);
2492 c->stream->bytes_served += len;
2494 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2495 /* RTP packets are sent inside the RTSP TCP connection */
2497 int interleaved_index, size;
2499 HTTPContext *rtsp_c;
2502 /* if no RTSP connection left, error */
2505 /* if already sending something, then wait. */
2506 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2508 if (url_open_dyn_buf(&pb) < 0)
2510 interleaved_index = c->packet_stream_index * 2;
2511 /* RTCP packets are sent at odd indexes */
2512 if (c->buffer_ptr[1] == 200)
2513 interleaved_index++;
2514 /* write RTSP TCP header */
2516 header[1] = interleaved_index;
2517 header[2] = len >> 8;
2519 put_buffer(pb, header, 4);
2520 /* write RTP packet data */
2522 put_buffer(pb, c->buffer_ptr, len);
2523 size = url_close_dyn_buf(pb, &c->packet_buffer);
2524 /* prepare asynchronous TCP sending */
2525 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2526 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2527 c->buffer_ptr += len;
2529 /* send everything we can NOW */
2530 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2531 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2533 rtsp_c->packet_buffer_ptr += len;
2534 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2535 /* if we could not send all the data, we will
2536 send it later, so a new state is needed to
2537 "lock" the RTSP TCP connection */
2538 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2541 /* all data has been sent */
2542 av_freep(&c->packet_buffer);
2544 /* send RTP packet directly in UDP */
2546 url_write(c->rtp_handles[c->packet_stream_index],
2547 c->buffer_ptr, len);
2548 c->buffer_ptr += len;
2549 /* here we continue as we can send several packets per 10 ms slot */
2552 /* TCP data output */
2553 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2555 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2556 ff_neterrno() != FF_NETERROR(EINTR))
2557 /* error : close connection */
2562 c->buffer_ptr += len;
2564 c->data_count += len;
2565 update_datarate(&c->datarate, c->data_count);
2567 c->stream->bytes_served += len;
2575 static int http_start_receive_data(HTTPContext *c)
2579 if (c->stream->feed_opened)
2582 /* Don't permit writing to this one */
2583 if (c->stream->readonly)
2587 fd = open(c->stream->feed_filename, O_RDWR);
2589 http_log("Error opening feeder file: %s\n", strerror(errno));
2594 if (c->stream->truncate) {
2595 /* truncate feed file */
2596 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2597 ftruncate(c->feed_fd, FFM_PACKET_SIZE);
2598 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2600 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2601 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2606 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2607 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2608 lseek(fd, 0, SEEK_SET);
2610 /* init buffer input */
2611 c->buffer_ptr = c->buffer;
2612 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2613 c->stream->feed_opened = 1;
2614 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2618 static int http_receive_data(HTTPContext *c)
2621 int len, loop_run = 0;
2623 while (c->chunked_encoding && !c->chunk_size &&
2624 c->buffer_end > c->buffer_ptr) {
2625 /* read chunk header, if present */
2626 len = recv(c->fd, c->buffer_ptr, 1, 0);
2629 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2630 ff_neterrno() != FF_NETERROR(EINTR))
2631 /* error : close connection */
2634 } else if (len == 0) {
2635 /* end of connection : close it */
2637 } else if (c->buffer_ptr - c->buffer >= 2 &&
2638 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2639 c->chunk_size = strtol(c->buffer, 0, 16);
2640 if (c->chunk_size == 0) // end of stream
2642 c->buffer_ptr = c->buffer;
2644 } else if (++loop_run > 10) {
2645 /* no chunk header, abort */
2652 if (c->buffer_end > c->buffer_ptr) {
2653 len = recv(c->fd, c->buffer_ptr,
2654 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2656 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2657 ff_neterrno() != FF_NETERROR(EINTR))
2658 /* error : close connection */
2660 } else if (len == 0)
2661 /* end of connection : close it */
2664 c->chunk_size -= len;
2665 c->buffer_ptr += len;
2666 c->data_count += len;
2667 update_datarate(&c->datarate, c->data_count);
2671 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2672 if (c->buffer[0] != 'f' ||
2673 c->buffer[1] != 'm') {
2674 http_log("Feed stream has become desynchronized -- disconnecting\n");
2679 if (c->buffer_ptr >= c->buffer_end) {
2680 FFStream *feed = c->stream;
2681 /* a packet has been received : write it in the store, except
2683 if (c->data_count > FFM_PACKET_SIZE) {
2685 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
2686 /* XXX: use llseek or url_seek */
2687 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2688 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2689 http_log("Error writing to feed file: %s\n", strerror(errno));
2693 feed->feed_write_index += FFM_PACKET_SIZE;
2694 /* update file size */
2695 if (feed->feed_write_index > c->stream->feed_size)
2696 feed->feed_size = feed->feed_write_index;
2698 /* handle wrap around if max file size reached */
2699 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2700 feed->feed_write_index = FFM_PACKET_SIZE;
2703 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2704 http_log("Error writing index to feed file: %s\n", strerror(errno));
2708 /* wake up any waiting connections */
2709 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2710 if (c1->state == HTTPSTATE_WAIT_FEED &&
2711 c1->stream->feed == c->stream->feed)
2712 c1->state = HTTPSTATE_SEND_DATA;
2715 /* We have a header in our hands that contains useful data */
2716 AVFormatContext *s = NULL;
2718 AVInputFormat *fmt_in;
2721 /* use feed output format name to find corresponding input format */
2722 fmt_in = av_find_input_format(feed->fmt->name);
2726 url_open_buf(&pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
2727 pb->is_streamed = 1;
2729 if (av_open_input_stream(&s, pb, c->stream->feed_filename, fmt_in, NULL) < 0) {
2734 /* Now we have the actual streams */
2735 if (s->nb_streams != feed->nb_streams) {
2736 av_close_input_stream(s);
2738 http_log("Feed '%s' stream number does not match registered feed\n",
2739 c->stream->feed_filename);
2743 for (i = 0; i < s->nb_streams; i++) {
2744 AVStream *fst = feed->streams[i];
2745 AVStream *st = s->streams[i];
2746 avcodec_copy_context(fst->codec, st->codec);
2749 av_close_input_stream(s);
2752 c->buffer_ptr = c->buffer;
2757 c->stream->feed_opened = 0;
2759 /* wake up any waiting connections to stop waiting for feed */
2760 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2761 if (c1->state == HTTPSTATE_WAIT_FEED &&
2762 c1->stream->feed == c->stream->feed)
2763 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2768 /********************************************************************/
2771 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2778 switch(error_number) {
2779 case RTSP_STATUS_OK:
2782 case RTSP_STATUS_METHOD:
2783 str = "Method Not Allowed";
2785 case RTSP_STATUS_BANDWIDTH:
2786 str = "Not Enough Bandwidth";
2788 case RTSP_STATUS_SESSION:
2789 str = "Session Not Found";
2791 case RTSP_STATUS_STATE:
2792 str = "Method Not Valid in This State";
2794 case RTSP_STATUS_AGGREGATE:
2795 str = "Aggregate operation not allowed";
2797 case RTSP_STATUS_ONLY_AGGREGATE:
2798 str = "Only aggregate operation allowed";
2800 case RTSP_STATUS_TRANSPORT:
2801 str = "Unsupported transport";
2803 case RTSP_STATUS_INTERNAL:
2804 str = "Internal Server Error";
2806 case RTSP_STATUS_SERVICE:
2807 str = "Service Unavailable";
2809 case RTSP_STATUS_VERSION:
2810 str = "RTSP Version not supported";
2813 str = "Unknown Error";
2817 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2818 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2820 /* output GMT time */
2823 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2824 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2827 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2829 rtsp_reply_header(c, error_number);
2830 url_fprintf(c->pb, "\r\n");
2833 static int rtsp_parse_request(HTTPContext *c)
2835 const char *p, *p1, *p2;
2841 RTSPMessageHeader header1, *header = &header1;
2843 c->buffer_ptr[0] = '\0';
2846 get_word(cmd, sizeof(cmd), &p);
2847 get_word(url, sizeof(url), &p);
2848 get_word(protocol, sizeof(protocol), &p);
2850 av_strlcpy(c->method, cmd, sizeof(c->method));
2851 av_strlcpy(c->url, url, sizeof(c->url));
2852 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2854 if (url_open_dyn_buf(&c->pb) < 0) {
2855 /* XXX: cannot do more */
2856 c->pb = NULL; /* safety */
2860 /* check version name */
2861 if (strcmp(protocol, "RTSP/1.0") != 0) {
2862 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2866 /* parse each header line */
2867 memset(header, 0, sizeof(*header));
2868 /* skip to next line */
2869 while (*p != '\n' && *p != '\0')
2873 while (*p != '\0') {
2874 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2878 if (p2 > p && p2[-1] == '\r')
2880 /* skip empty line */
2884 if (len > sizeof(line) - 1)
2885 len = sizeof(line) - 1;
2886 memcpy(line, p, len);
2888 ff_rtsp_parse_line(header, line, NULL, NULL);
2892 /* handle sequence number */
2893 c->seq = header->seq;
2895 if (!strcmp(cmd, "DESCRIBE"))
2896 rtsp_cmd_describe(c, url);
2897 else if (!strcmp(cmd, "OPTIONS"))
2898 rtsp_cmd_options(c, url);
2899 else if (!strcmp(cmd, "SETUP"))
2900 rtsp_cmd_setup(c, url, header);
2901 else if (!strcmp(cmd, "PLAY"))
2902 rtsp_cmd_play(c, url, header);
2903 else if (!strcmp(cmd, "PAUSE"))
2904 rtsp_cmd_pause(c, url, header);
2905 else if (!strcmp(cmd, "TEARDOWN"))
2906 rtsp_cmd_teardown(c, url, header);
2908 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2911 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2912 c->pb = NULL; /* safety */
2914 /* XXX: cannot do more */
2917 c->buffer_ptr = c->pb_buffer;
2918 c->buffer_end = c->pb_buffer + len;
2919 c->state = RTSPSTATE_SEND_REPLY;
2923 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2924 struct in_addr my_ip)
2926 AVFormatContext *avc;
2927 AVStream *avs = NULL;
2930 avc = avformat_alloc_context();
2934 av_metadata_set2(&avc->metadata, "title",
2935 stream->title[0] ? stream->title : "No Title", 0);
2936 avc->nb_streams = stream->nb_streams;
2937 if (stream->is_multicast) {
2938 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2939 inet_ntoa(stream->multicast_ip),
2940 stream->multicast_port, stream->multicast_ttl);
2942 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2945 #if !FF_API_MAX_STREAMS
2946 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2947 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2950 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2951 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2954 for(i = 0; i < stream->nb_streams; i++) {
2955 avc->streams[i] = &avs[i];
2956 avc->streams[i]->codec = stream->streams[i]->codec;
2958 *pbuffer = av_mallocz(2048);
2959 avf_sdp_create(&avc, 1, *pbuffer, 2048);
2962 #if !FF_API_MAX_STREAMS
2963 av_free(avc->streams);
2965 av_metadata_free(&avc->metadata);
2969 return strlen(*pbuffer);
2972 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2974 // rtsp_reply_header(c, RTSP_STATUS_OK);
2975 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2976 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2977 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2978 url_fprintf(c->pb, "\r\n");
2981 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2987 int content_length, len;
2988 struct sockaddr_in my_addr;
2990 /* find which url is asked */
2991 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2996 for(stream = first_stream; stream != NULL; stream = stream->next) {
2997 if (!stream->is_feed &&
2998 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2999 !strcmp(path, stream->filename)) {
3003 /* no stream found */
3004 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3008 /* prepare the media description in sdp format */
3010 /* get the host IP */
3011 len = sizeof(my_addr);
3012 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3013 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3014 if (content_length < 0) {
3015 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3018 rtsp_reply_header(c, RTSP_STATUS_OK);
3019 url_fprintf(c->pb, "Content-Base: %s/\r\n", url);
3020 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
3021 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
3022 url_fprintf(c->pb, "\r\n");
3023 put_buffer(c->pb, content, content_length);
3027 static HTTPContext *find_rtp_session(const char *session_id)
3031 if (session_id[0] == '\0')
3034 for(c = first_http_ctx; c != NULL; c = c->next) {
3035 if (!strcmp(c->session_id, session_id))
3041 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3043 RTSPTransportField *th;
3046 for(i=0;i<h->nb_transports;i++) {
3047 th = &h->transports[i];
3048 if (th->lower_transport == lower_transport)
3054 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3055 RTSPMessageHeader *h)
3058 int stream_index, rtp_port, rtcp_port;
3063 RTSPTransportField *th;
3064 struct sockaddr_in dest_addr;
3065 RTSPActionServerSetup setup;
3067 /* find which url is asked */
3068 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3073 /* now check each stream */
3074 for(stream = first_stream; stream != NULL; stream = stream->next) {
3075 if (!stream->is_feed &&
3076 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3077 /* accept aggregate filenames only if single stream */
3078 if (!strcmp(path, stream->filename)) {
3079 if (stream->nb_streams != 1) {
3080 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3087 for(stream_index = 0; stream_index < stream->nb_streams;
3089 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3090 stream->filename, stream_index);
3091 if (!strcmp(path, buf))
3096 /* no stream found */
3097 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3101 /* generate session id if needed */
3102 if (h->session_id[0] == '\0')
3103 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3104 av_lfg_get(&random_state), av_lfg_get(&random_state));
3106 /* find rtp session, and create it if none found */
3107 rtp_c = find_rtp_session(h->session_id);
3109 /* always prefer UDP */
3110 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3112 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3114 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3119 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3120 th->lower_transport);
3122 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3126 /* open input stream */
3127 if (open_input_stream(rtp_c, "") < 0) {
3128 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3133 /* test if stream is OK (test needed because several SETUP needs
3134 to be done for a given file) */
3135 if (rtp_c->stream != stream) {
3136 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3140 /* test if stream is already set up */
3141 if (rtp_c->rtp_ctx[stream_index]) {
3142 rtsp_reply_error(c, RTSP_STATUS_STATE);
3146 /* check transport */
3147 th = find_transport(h, rtp_c->rtp_protocol);
3148 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3149 th->client_port_min <= 0)) {
3150 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3154 /* setup default options */
3155 setup.transport_option[0] = '\0';
3156 dest_addr = rtp_c->from_addr;
3157 dest_addr.sin_port = htons(th->client_port_min);
3160 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3161 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3165 /* now everything is OK, so we can send the connection parameters */
3166 rtsp_reply_header(c, RTSP_STATUS_OK);
3168 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3170 switch(rtp_c->rtp_protocol) {
3171 case RTSP_LOWER_TRANSPORT_UDP:
3172 rtp_port = rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3173 rtcp_port = rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3174 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3175 "client_port=%d-%d;server_port=%d-%d",
3176 th->client_port_min, th->client_port_max,
3177 rtp_port, rtcp_port);
3179 case RTSP_LOWER_TRANSPORT_TCP:
3180 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3181 stream_index * 2, stream_index * 2 + 1);
3186 if (setup.transport_option[0] != '\0')
3187 url_fprintf(c->pb, ";%s", setup.transport_option);
3188 url_fprintf(c->pb, "\r\n");
3191 url_fprintf(c->pb, "\r\n");
3195 /* find an rtp connection by using the session ID. Check consistency
3197 static HTTPContext *find_rtp_session_with_url(const char *url,
3198 const char *session_id)
3206 rtp_c = find_rtp_session(session_id);
3210 /* find which url is asked */
3211 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3215 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3216 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3217 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3218 rtp_c->stream->filename, s);
3219 if(!strncmp(path, buf, sizeof(buf))) {
3220 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3227 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3231 rtp_c = find_rtp_session_with_url(url, h->session_id);
3233 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3237 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3238 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3239 rtp_c->state != HTTPSTATE_READY) {
3240 rtsp_reply_error(c, RTSP_STATUS_STATE);
3244 rtp_c->state = HTTPSTATE_SEND_DATA;
3246 /* now everything is OK, so we can send the connection parameters */
3247 rtsp_reply_header(c, RTSP_STATUS_OK);
3249 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3250 url_fprintf(c->pb, "\r\n");
3253 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3257 rtp_c = find_rtp_session_with_url(url, h->session_id);
3259 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3263 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3264 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3265 rtsp_reply_error(c, RTSP_STATUS_STATE);
3269 rtp_c->state = HTTPSTATE_READY;
3270 rtp_c->first_pts = AV_NOPTS_VALUE;
3271 /* now everything is OK, so we can send the connection parameters */
3272 rtsp_reply_header(c, RTSP_STATUS_OK);
3274 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3275 url_fprintf(c->pb, "\r\n");
3278 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3281 char session_id[32];
3283 rtp_c = find_rtp_session_with_url(url, h->session_id);
3285 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3289 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
3291 /* abort the session */
3292 close_connection(rtp_c);
3294 /* now everything is OK, so we can send the connection parameters */
3295 rtsp_reply_header(c, RTSP_STATUS_OK);
3297 url_fprintf(c->pb, "Session: %s\r\n", session_id);
3298 url_fprintf(c->pb, "\r\n");
3302 /********************************************************************/
3305 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3306 FFStream *stream, const char *session_id,
3307 enum RTSPLowerTransport rtp_protocol)
3309 HTTPContext *c = NULL;
3310 const char *proto_str;
3312 /* XXX: should output a warning page when coming
3313 close to the connection limit */
3314 if (nb_connections >= nb_max_connections)
3317 /* add a new connection */
3318 c = av_mallocz(sizeof(HTTPContext));
3323 c->poll_entry = NULL;
3324 c->from_addr = *from_addr;
3325 c->buffer_size = IOBUFFER_INIT_SIZE;
3326 c->buffer = av_malloc(c->buffer_size);
3331 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3332 c->state = HTTPSTATE_READY;
3333 c->is_packetized = 1;
3334 c->rtp_protocol = rtp_protocol;
3336 /* protocol is shown in statistics */
3337 switch(c->rtp_protocol) {
3338 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3339 proto_str = "MCAST";
3341 case RTSP_LOWER_TRANSPORT_UDP:
3344 case RTSP_LOWER_TRANSPORT_TCP:
3351 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3352 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3354 current_bandwidth += stream->bandwidth;
3356 c->next = first_http_ctx;
3368 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3369 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3371 static int rtp_new_av_stream(HTTPContext *c,
3372 int stream_index, struct sockaddr_in *dest_addr,
3373 HTTPContext *rtsp_c)
3375 AVFormatContext *ctx;
3378 URLContext *h = NULL;
3380 int max_packet_size;
3382 /* now we can open the relevant output stream */
3383 ctx = avformat_alloc_context();
3386 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3388 st = av_mallocz(sizeof(AVStream));
3391 ctx->nb_streams = 1;
3392 ctx->streams[0] = st;
3394 if (!c->stream->feed ||
3395 c->stream->feed == c->stream)
3396 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3399 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3401 st->priv_data = NULL;
3403 /* build destination RTP address */
3404 ipaddr = inet_ntoa(dest_addr->sin_addr);
3406 switch(c->rtp_protocol) {
3407 case RTSP_LOWER_TRANSPORT_UDP:
3408 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3411 /* XXX: also pass as parameter to function ? */
3412 if (c->stream->is_multicast) {
3414 ttl = c->stream->multicast_ttl;
3417 snprintf(ctx->filename, sizeof(ctx->filename),
3418 "rtp://%s:%d?multicast=1&ttl=%d",
3419 ipaddr, ntohs(dest_addr->sin_port), ttl);
3421 snprintf(ctx->filename, sizeof(ctx->filename),
3422 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3425 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3427 c->rtp_handles[stream_index] = h;
3428 max_packet_size = url_get_max_packet_size(h);
3430 case RTSP_LOWER_TRANSPORT_TCP:
3433 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3439 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3440 ipaddr, ntohs(dest_addr->sin_port),
3441 c->stream->filename, stream_index, c->protocol);
3443 /* normally, no packets should be output here, but the packet size may be checked */
3444 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3445 /* XXX: close stream */
3448 av_set_parameters(ctx, NULL);
3449 if (av_write_header(ctx) < 0) {
3456 url_close_dyn_buf(ctx->pb, &dummy_buf);
3459 c->rtp_ctx[stream_index] = ctx;
3463 /********************************************************************/
3464 /* ffserver initialization */
3466 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3470 fst = av_mallocz(sizeof(AVStream));
3474 fst->codec= avcodec_alloc_context();
3475 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3476 if (codec->extradata_size) {
3477 fst->codec->extradata = av_malloc(codec->extradata_size);
3478 memcpy(fst->codec->extradata, codec->extradata,
3479 codec->extradata_size);
3482 /* live streams must use the actual feed's codec since it may be
3483 * updated later to carry extradata needed by the streams.
3487 fst->priv_data = av_mallocz(sizeof(FeedData));
3488 fst->index = stream->nb_streams;
3489 av_set_pts_info(fst, 33, 1, 90000);
3490 fst->sample_aspect_ratio = (AVRational){0,1};
3491 stream->streams[stream->nb_streams++] = fst;
3495 /* return the stream number in the feed */
3496 static int add_av_stream(FFStream *feed, AVStream *st)
3499 AVCodecContext *av, *av1;
3503 for(i=0;i<feed->nb_streams;i++) {
3504 st = feed->streams[i];
3506 if (av1->codec_id == av->codec_id &&
3507 av1->codec_type == av->codec_type &&
3508 av1->bit_rate == av->bit_rate) {
3510 switch(av->codec_type) {
3511 case AVMEDIA_TYPE_AUDIO:
3512 if (av1->channels == av->channels &&
3513 av1->sample_rate == av->sample_rate)
3516 case AVMEDIA_TYPE_VIDEO:
3517 if (av1->width == av->width &&
3518 av1->height == av->height &&
3519 av1->time_base.den == av->time_base.den &&
3520 av1->time_base.num == av->time_base.num &&
3521 av1->gop_size == av->gop_size)
3530 fst = add_av_stream1(feed, av, 0);
3533 return feed->nb_streams - 1;
3538 static void remove_stream(FFStream *stream)
3542 while (*ps != NULL) {
3550 /* specific mpeg4 handling : we extract the raw parameters */
3551 static void extract_mpeg4_header(AVFormatContext *infile)
3553 int mpeg4_count, i, size;
3559 for(i=0;i<infile->nb_streams;i++) {
3560 st = infile->streams[i];
3561 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3562 st->codec->extradata_size == 0) {
3569 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3570 while (mpeg4_count > 0) {
3571 if (av_read_packet(infile, &pkt) < 0)
3573 st = infile->streams[pkt.stream_index];
3574 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3575 st->codec->extradata_size == 0) {
3576 av_freep(&st->codec->extradata);
3577 /* fill extradata with the header */
3578 /* XXX: we make hard suppositions here ! */
3580 while (p < pkt.data + pkt.size - 4) {
3581 /* stop when vop header is found */
3582 if (p[0] == 0x00 && p[1] == 0x00 &&
3583 p[2] == 0x01 && p[3] == 0xb6) {
3584 size = p - pkt.data;
3585 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3586 st->codec->extradata = av_malloc(size);
3587 st->codec->extradata_size = size;
3588 memcpy(st->codec->extradata, pkt.data, size);
3595 av_free_packet(&pkt);
3599 /* compute the needed AVStream for each file */
3600 static void build_file_streams(void)
3602 FFStream *stream, *stream_next;
3603 AVFormatContext *infile;
3606 /* gather all streams */
3607 for(stream = first_stream; stream != NULL; stream = stream_next) {
3608 stream_next = stream->next;
3609 if (stream->stream_type == STREAM_TYPE_LIVE &&
3611 /* the stream comes from a file */
3612 /* try to open the file */
3614 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
3615 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3616 /* specific case : if transport stream output to RTP,
3617 we use a raw transport stream reader */
3618 stream->ap_in->mpeg2ts_raw = 1;
3619 stream->ap_in->mpeg2ts_compute_pcr = 1;
3622 http_log("Opening file '%s'\n", stream->feed_filename);
3623 if ((ret = av_open_input_file(&infile, stream->feed_filename,
3624 stream->ifmt, 0, stream->ap_in)) < 0) {
3625 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3626 /* remove stream (no need to spend more time on it) */
3628 remove_stream(stream);
3630 /* find all the AVStreams inside and reference them in
3632 if (av_find_stream_info(infile) < 0) {
3633 http_log("Could not find codec parameters from '%s'\n",
3634 stream->feed_filename);
3635 av_close_input_file(infile);
3638 extract_mpeg4_header(infile);
3640 for(i=0;i<infile->nb_streams;i++)
3641 add_av_stream1(stream, infile->streams[i]->codec, 1);
3643 av_close_input_file(infile);
3649 /* compute the needed AVStream for each feed */
3650 static void build_feed_streams(void)
3652 FFStream *stream, *feed;
3655 /* gather all streams */
3656 for(stream = first_stream; stream != NULL; stream = stream->next) {
3657 feed = stream->feed;
3659 if (!stream->is_feed) {
3660 /* we handle a stream coming from a feed */
3661 for(i=0;i<stream->nb_streams;i++)
3662 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3667 /* gather all streams */
3668 for(stream = first_stream; stream != NULL; stream = stream->next) {
3669 feed = stream->feed;
3671 if (stream->is_feed) {
3672 for(i=0;i<stream->nb_streams;i++)
3673 stream->feed_streams[i] = i;
3678 /* create feed files if needed */
3679 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3682 if (url_exist(feed->feed_filename)) {
3683 /* See if it matches */
3687 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3688 /* Now see if it matches */
3689 if (s->nb_streams == feed->nb_streams) {
3691 for(i=0;i<s->nb_streams;i++) {
3693 sf = feed->streams[i];
3696 if (sf->index != ss->index ||
3698 http_log("Index & Id do not match for stream %d (%s)\n",
3699 i, feed->feed_filename);
3702 AVCodecContext *ccf, *ccs;
3706 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3708 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3709 http_log("Codecs do not match for stream %d\n", i);
3711 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3712 http_log("Codec bitrates do not match for stream %d\n", i);
3714 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3715 if (CHECK_CODEC(time_base.den) ||
3716 CHECK_CODEC(time_base.num) ||
3717 CHECK_CODEC(width) ||
3718 CHECK_CODEC(height)) {
3719 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3722 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3723 if (CHECK_CODEC(sample_rate) ||
3724 CHECK_CODEC(channels) ||
3725 CHECK_CODEC(frame_size)) {
3726 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3730 http_log("Unknown codec type\n");
3738 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3739 feed->feed_filename, s->nb_streams, feed->nb_streams);
3741 av_close_input_file(s);
3743 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3744 feed->feed_filename);
3747 if (feed->readonly) {
3748 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3749 feed->feed_filename);
3752 unlink(feed->feed_filename);
3755 if (!url_exist(feed->feed_filename)) {
3756 AVFormatContext s1 = {0}, *s = &s1;
3758 if (feed->readonly) {
3759 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3760 feed->feed_filename);
3764 /* only write the header of the ffm file */
3765 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
3766 http_log("Could not open output feed file '%s'\n",
3767 feed->feed_filename);
3770 s->oformat = feed->fmt;
3771 s->nb_streams = feed->nb_streams;
3772 for(i=0;i<s->nb_streams;i++) {
3774 st = feed->streams[i];
3777 av_set_parameters(s, NULL);
3778 if (av_write_header(s) < 0) {
3779 http_log("Container doesn't supports the required parameters\n");
3782 /* XXX: need better api */
3783 av_freep(&s->priv_data);
3786 /* get feed size and write index */
3787 fd = open(feed->feed_filename, O_RDONLY);
3789 http_log("Could not open output feed file '%s'\n",
3790 feed->feed_filename);
3794 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3795 feed->feed_size = lseek(fd, 0, SEEK_END);
3796 /* ensure that we do not wrap before the end of file */
3797 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3798 feed->feed_max_size = feed->feed_size;
3804 /* compute the bandwidth used by each stream */
3805 static void compute_bandwidth(void)
3811 for(stream = first_stream; stream != NULL; stream = stream->next) {
3813 for(i=0;i<stream->nb_streams;i++) {
3814 AVStream *st = stream->streams[i];
3815 switch(st->codec->codec_type) {
3816 case AVMEDIA_TYPE_AUDIO:
3817 case AVMEDIA_TYPE_VIDEO:
3818 bandwidth += st->codec->bit_rate;
3824 stream->bandwidth = (bandwidth + 999) / 1000;
3828 /* add a codec and set the default parameters */
3829 static void add_codec(FFStream *stream, AVCodecContext *av)
3833 /* compute default parameters */
3834 switch(av->codec_type) {
3835 case AVMEDIA_TYPE_AUDIO:
3836 if (av->bit_rate == 0)
3837 av->bit_rate = 64000;
3838 if (av->sample_rate == 0)
3839 av->sample_rate = 22050;
3840 if (av->channels == 0)
3843 case AVMEDIA_TYPE_VIDEO:
3844 if (av->bit_rate == 0)
3845 av->bit_rate = 64000;
3846 if (av->time_base.num == 0){
3847 av->time_base.den = 5;
3848 av->time_base.num = 1;
3850 if (av->width == 0 || av->height == 0) {
3854 /* Bitrate tolerance is less for streaming */
3855 if (av->bit_rate_tolerance == 0)
3856 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3857 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3862 if (av->max_qdiff == 0)
3864 av->qcompress = 0.5;
3867 if (!av->nsse_weight)
3868 av->nsse_weight = 8;
3870 av->frame_skip_cmp = FF_CMP_DCTMAX;
3872 av->me_method = ME_EPZS;
3873 av->rc_buffer_aggressivity = 1.0;
3876 av->rc_eq = "tex^qComp";
3877 if (!av->i_quant_factor)
3878 av->i_quant_factor = -0.8;
3879 if (!av->b_quant_factor)
3880 av->b_quant_factor = 1.25;
3881 if (!av->b_quant_offset)
3882 av->b_quant_offset = 1.25;
3883 if (!av->rc_max_rate)
3884 av->rc_max_rate = av->bit_rate * 2;
3886 if (av->rc_max_rate && !av->rc_buffer_size) {
3887 av->rc_buffer_size = av->rc_max_rate;
3896 st = av_mallocz(sizeof(AVStream));
3899 st->codec = avcodec_alloc_context();
3900 stream->streams[stream->nb_streams++] = st;
3901 memcpy(st->codec, av, sizeof(AVCodecContext));
3904 static enum CodecID opt_audio_codec(const char *arg)
3906 AVCodec *p= avcodec_find_encoder_by_name(arg);
3908 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3909 return CODEC_ID_NONE;
3914 static enum CodecID opt_video_codec(const char *arg)
3916 AVCodec *p= avcodec_find_encoder_by_name(arg);
3918 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3919 return CODEC_ID_NONE;
3924 /* simplistic plugin support */
3927 static void load_module(const char *filename)
3930 void (*init_func)(void);
3931 dll = dlopen(filename, RTLD_NOW);
3933 fprintf(stderr, "Could not load module '%s' - %s\n",
3934 filename, dlerror());
3938 init_func = dlsym(dll, "ffserver_module_init");
3941 "%s: init function 'ffserver_module_init()' not found\n",
3950 static int ffserver_opt_default(const char *opt, const char *arg,
3951 AVCodecContext *avctx, int type)
3954 const AVOption *o = av_find_opt(avctx, opt, NULL, type, type);
3956 ret = av_set_string3(avctx, opt, arg, 1, NULL);
3960 static int ffserver_opt_preset(const char *arg,
3961 AVCodecContext *avctx, int type,
3962 enum CodecID *audio_id, enum CodecID *video_id)
3965 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3967 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3969 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3970 codec ? codec->name : NULL))) {
3971 fprintf(stderr, "File for preset '%s' not found\n", arg);
3976 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3977 if(line[0] == '#' && !e)
3979 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3981 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
3985 if(!strcmp(tmp, "acodec")){
3986 *audio_id = opt_audio_codec(tmp2);
3987 }else if(!strcmp(tmp, "vcodec")){
3988 *video_id = opt_video_codec(tmp2);
3989 }else if(!strcmp(tmp, "scodec")){
3990 /* opt_subtitle_codec(tmp2); */
3991 }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){
3992 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
4003 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
4004 const char *mime_type)
4006 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
4009 AVOutputFormat *stream_fmt;
4010 char stream_format_name[64];
4012 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
4013 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
4022 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
4026 fprintf(stderr, "%s:%d: ", filename, line_num);
4027 vfprintf(stderr, fmt, vl);
4033 static int parse_ffconfig(const char *filename)
4040 int val, errors, line_num;
4041 FFStream **last_stream, *stream, *redirect;
4042 FFStream **last_feed, *feed, *s;
4043 AVCodecContext audio_enc, video_enc;
4044 enum CodecID audio_id, video_id;
4046 f = fopen(filename, "r");
4054 first_stream = NULL;
4055 last_stream = &first_stream;
4057 last_feed = &first_feed;
4061 audio_id = CODEC_ID_NONE;
4062 video_id = CODEC_ID_NONE;
4064 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4066 if (fgets(line, sizeof(line), f) == NULL)
4072 if (*p == '\0' || *p == '#')
4075 get_arg(cmd, sizeof(cmd), &p);
4077 if (!strcasecmp(cmd, "Port")) {
4078 get_arg(arg, sizeof(arg), &p);
4080 if (val < 1 || val > 65536) {
4081 ERROR("Invalid_port: %s\n", arg);
4083 my_http_addr.sin_port = htons(val);
4084 } else if (!strcasecmp(cmd, "BindAddress")) {
4085 get_arg(arg, sizeof(arg), &p);
4086 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4087 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4089 } else if (!strcasecmp(cmd, "NoDaemon")) {
4090 ffserver_daemon = 0;
4091 } else if (!strcasecmp(cmd, "RTSPPort")) {
4092 get_arg(arg, sizeof(arg), &p);
4094 if (val < 1 || val > 65536) {
4095 ERROR("%s:%d: Invalid port: %s\n", arg);
4097 my_rtsp_addr.sin_port = htons(atoi(arg));
4098 } else if (!strcasecmp(cmd, "RTSPBindAddress")) {
4099 get_arg(arg, sizeof(arg), &p);
4100 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4101 ERROR("Invalid host/IP address: %s\n", arg);
4103 } else if (!strcasecmp(cmd, "MaxHTTPConnections")) {
4104 get_arg(arg, sizeof(arg), &p);
4106 if (val < 1 || val > 65536) {
4107 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4109 nb_max_http_connections = val;
4110 } else if (!strcasecmp(cmd, "MaxClients")) {
4111 get_arg(arg, sizeof(arg), &p);
4113 if (val < 1 || val > nb_max_http_connections) {
4114 ERROR("Invalid MaxClients: %s\n", arg);
4116 nb_max_connections = val;
4118 } else if (!strcasecmp(cmd, "MaxBandwidth")) {
4120 get_arg(arg, sizeof(arg), &p);
4122 if (llval < 10 || llval > 10000000) {
4123 ERROR("Invalid MaxBandwidth: %s\n", arg);
4125 max_bandwidth = llval;
4126 } else if (!strcasecmp(cmd, "CustomLog")) {
4127 if (!ffserver_debug)
4128 get_arg(logfilename, sizeof(logfilename), &p);
4129 } else if (!strcasecmp(cmd, "<Feed")) {
4130 /*********************************************/
4131 /* Feed related options */
4133 if (stream || feed) {
4134 ERROR("Already in a tag\n");
4136 feed = av_mallocz(sizeof(FFStream));
4137 get_arg(feed->filename, sizeof(feed->filename), &p);
4138 q = strrchr(feed->filename, '>');
4142 for (s = first_feed; s; s = s->next) {
4143 if (!strcmp(feed->filename, s->filename)) {
4144 ERROR("Feed '%s' already registered\n", s->filename);
4148 feed->fmt = av_guess_format("ffm", NULL, NULL);
4149 /* defaut feed file */
4150 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4151 "/tmp/%s.ffm", feed->filename);
4152 feed->feed_max_size = 5 * 1024 * 1024;
4154 feed->feed = feed; /* self feeding :-) */
4156 /* add in stream list */
4157 *last_stream = feed;
4158 last_stream = &feed->next;
4159 /* add in feed list */
4161 last_feed = &feed->next_feed;
4163 } else if (!strcasecmp(cmd, "Launch")) {
4167 feed->child_argv = av_mallocz(64 * sizeof(char *));
4169 for (i = 0; i < 62; i++) {
4170 get_arg(arg, sizeof(arg), &p);
4174 feed->child_argv[i] = av_strdup(arg);
4177 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4179 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4181 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4182 inet_ntoa(my_http_addr.sin_addr),
4183 ntohs(my_http_addr.sin_port), feed->filename);
4185 } else if (!strcasecmp(cmd, "ReadOnlyFile")) {
4187 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4189 } else if (stream) {
4190 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4192 } else if (!strcasecmp(cmd, "File")) {
4194 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4196 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4197 } else if (!strcasecmp(cmd, "Truncate")) {
4199 get_arg(arg, sizeof(arg), &p);
4200 feed->truncate = strtod(arg, NULL);
4202 } else if (!strcasecmp(cmd, "FileMaxSize")) {
4207 get_arg(arg, sizeof(arg), &p);
4209 fsize = strtod(p1, &p1);
4210 switch(toupper(*p1)) {
4215 fsize *= 1024 * 1024;
4218 fsize *= 1024 * 1024 * 1024;
4221 feed->feed_max_size = (int64_t)fsize;
4222 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4223 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4226 } else if (!strcasecmp(cmd, "</Feed>")) {
4228 ERROR("No corresponding <Feed> for </Feed>\n");
4231 } else if (!strcasecmp(cmd, "<Stream")) {
4232 /*********************************************/
4233 /* Stream related options */
4235 if (stream || feed) {
4236 ERROR("Already in a tag\n");
4239 stream = av_mallocz(sizeof(FFStream));
4240 get_arg(stream->filename, sizeof(stream->filename), &p);
4241 q = strrchr(stream->filename, '>');
4245 for (s = first_stream; s; s = s->next) {
4246 if (!strcmp(stream->filename, s->filename)) {
4247 ERROR("Stream '%s' already registered\n", s->filename);
4251 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4252 avcodec_get_context_defaults2(&video_enc, AVMEDIA_TYPE_VIDEO);
4253 avcodec_get_context_defaults2(&audio_enc, AVMEDIA_TYPE_AUDIO);
4254 audio_id = CODEC_ID_NONE;
4255 video_id = CODEC_ID_NONE;
4257 audio_id = stream->fmt->audio_codec;
4258 video_id = stream->fmt->video_codec;
4261 *last_stream = stream;
4262 last_stream = &stream->next;
4264 } else if (!strcasecmp(cmd, "Feed")) {
4265 get_arg(arg, sizeof(arg), &p);
4270 while (sfeed != NULL) {
4271 if (!strcmp(sfeed->filename, arg))
4273 sfeed = sfeed->next_feed;
4276 ERROR("feed '%s' not defined\n", arg);
4278 stream->feed = sfeed;
4280 } else if (!strcasecmp(cmd, "Format")) {
4281 get_arg(arg, sizeof(arg), &p);
4283 if (!strcmp(arg, "status")) {
4284 stream->stream_type = STREAM_TYPE_STATUS;
4287 stream->stream_type = STREAM_TYPE_LIVE;
4288 /* jpeg cannot be used here, so use single frame jpeg */
4289 if (!strcmp(arg, "jpeg"))
4290 strcpy(arg, "mjpeg");
4291 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4293 ERROR("Unknown Format: %s\n", arg);
4297 audio_id = stream->fmt->audio_codec;
4298 video_id = stream->fmt->video_codec;
4301 } else if (!strcasecmp(cmd, "InputFormat")) {
4302 get_arg(arg, sizeof(arg), &p);
4304 stream->ifmt = av_find_input_format(arg);
4305 if (!stream->ifmt) {
4306 ERROR("Unknown input format: %s\n", arg);
4309 } else if (!strcasecmp(cmd, "FaviconURL")) {
4310 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4311 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4313 ERROR("FaviconURL only permitted for status streams\n");
4315 } else if (!strcasecmp(cmd, "Author")) {
4317 get_arg(stream->author, sizeof(stream->author), &p);
4318 } else if (!strcasecmp(cmd, "Comment")) {
4320 get_arg(stream->comment, sizeof(stream->comment), &p);
4321 } else if (!strcasecmp(cmd, "Copyright")) {
4323 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4324 } else if (!strcasecmp(cmd, "Title")) {
4326 get_arg(stream->title, sizeof(stream->title), &p);
4327 } else if (!strcasecmp(cmd, "Preroll")) {
4328 get_arg(arg, sizeof(arg), &p);
4330 stream->prebuffer = atof(arg) * 1000;
4331 } else if (!strcasecmp(cmd, "StartSendOnKey")) {
4333 stream->send_on_key = 1;
4334 } else if (!strcasecmp(cmd, "AudioCodec")) {
4335 get_arg(arg, sizeof(arg), &p);
4336 audio_id = opt_audio_codec(arg);
4337 if (audio_id == CODEC_ID_NONE) {
4338 ERROR("Unknown AudioCodec: %s\n", arg);
4340 } else if (!strcasecmp(cmd, "VideoCodec")) {
4341 get_arg(arg, sizeof(arg), &p);
4342 video_id = opt_video_codec(arg);
4343 if (video_id == CODEC_ID_NONE) {
4344 ERROR("Unknown VideoCodec: %s\n", arg);
4346 } else if (!strcasecmp(cmd, "MaxTime")) {
4347 get_arg(arg, sizeof(arg), &p);
4349 stream->max_time = atof(arg) * 1000;
4350 } else if (!strcasecmp(cmd, "AudioBitRate")) {
4351 get_arg(arg, sizeof(arg), &p);
4353 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4354 } else if (!strcasecmp(cmd, "AudioChannels")) {
4355 get_arg(arg, sizeof(arg), &p);
4357 audio_enc.channels = atoi(arg);
4358 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
4359 get_arg(arg, sizeof(arg), &p);
4361 audio_enc.sample_rate = atoi(arg);
4362 } else if (!strcasecmp(cmd, "AudioQuality")) {
4363 get_arg(arg, sizeof(arg), &p);
4365 // audio_enc.quality = atof(arg) * 1000;
4367 } else if (!strcasecmp(cmd, "VideoBitRateRange")) {
4369 int minrate, maxrate;
4371 get_arg(arg, sizeof(arg), &p);
4373 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4374 video_enc.rc_min_rate = minrate * 1000;
4375 video_enc.rc_max_rate = maxrate * 1000;
4377 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4380 } else if (!strcasecmp(cmd, "Debug")) {
4382 get_arg(arg, sizeof(arg), &p);
4383 video_enc.debug = strtol(arg,0,0);
4385 } else if (!strcasecmp(cmd, "Strict")) {
4387 get_arg(arg, sizeof(arg), &p);
4388 video_enc.strict_std_compliance = atoi(arg);
4390 } else if (!strcasecmp(cmd, "VideoBufferSize")) {
4392 get_arg(arg, sizeof(arg), &p);
4393 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4395 } else if (!strcasecmp(cmd, "VideoBitRateTolerance")) {
4397 get_arg(arg, sizeof(arg), &p);
4398 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4400 } else if (!strcasecmp(cmd, "VideoBitRate")) {
4401 get_arg(arg, sizeof(arg), &p);
4403 video_enc.bit_rate = atoi(arg) * 1000;
4405 } else if (!strcasecmp(cmd, "VideoSize")) {
4406 get_arg(arg, sizeof(arg), &p);
4408 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4409 if ((video_enc.width % 16) != 0 ||
4410 (video_enc.height % 16) != 0) {
4411 ERROR("Image size must be a multiple of 16\n");
4414 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
4415 get_arg(arg, sizeof(arg), &p);
4417 AVRational frame_rate;
4418 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4419 ERROR("Incorrect frame rate: %s\n", arg);
4421 video_enc.time_base.num = frame_rate.den;
4422 video_enc.time_base.den = frame_rate.num;
4425 } else if (!strcasecmp(cmd, "VideoGopSize")) {
4426 get_arg(arg, sizeof(arg), &p);
4428 video_enc.gop_size = atoi(arg);
4429 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
4431 video_enc.gop_size = 1;
4432 } else if (!strcasecmp(cmd, "VideoHighQuality")) {
4434 video_enc.mb_decision = FF_MB_DECISION_BITS;
4435 } else if (!strcasecmp(cmd, "Video4MotionVector")) {
4437 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4438 video_enc.flags |= CODEC_FLAG_4MV;
4440 } else if (!strcasecmp(cmd, "AVOptionVideo") ||
4441 !strcasecmp(cmd, "AVOptionAudio")) {
4443 AVCodecContext *avctx;
4445 get_arg(arg, sizeof(arg), &p);
4446 get_arg(arg2, sizeof(arg2), &p);
4447 if (!strcasecmp(cmd, "AVOptionVideo")) {
4449 type = AV_OPT_FLAG_VIDEO_PARAM;
4452 type = AV_OPT_FLAG_AUDIO_PARAM;
4454 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4455 ERROR("AVOption error: %s %s\n", arg, arg2);
4457 } else if (!strcasecmp(cmd, "AVPresetVideo") ||
4458 !strcasecmp(cmd, "AVPresetAudio")) {
4459 AVCodecContext *avctx;
4461 get_arg(arg, sizeof(arg), &p);
4462 if (!strcasecmp(cmd, "AVPresetVideo")) {
4464 video_enc.codec_id = video_id;
4465 type = AV_OPT_FLAG_VIDEO_PARAM;
4468 audio_enc.codec_id = audio_id;
4469 type = AV_OPT_FLAG_AUDIO_PARAM;
4471 if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4472 ERROR("AVPreset error: %s\n", arg);
4474 } else if (!strcasecmp(cmd, "VideoTag")) {
4475 get_arg(arg, sizeof(arg), &p);
4476 if ((strlen(arg) == 4) && stream)
4477 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4478 } else if (!strcasecmp(cmd, "BitExact")) {
4480 video_enc.flags |= CODEC_FLAG_BITEXACT;
4481 } else if (!strcasecmp(cmd, "DctFastint")) {
4483 video_enc.dct_algo = FF_DCT_FASTINT;
4484 } else if (!strcasecmp(cmd, "IdctSimple")) {
4486 video_enc.idct_algo = FF_IDCT_SIMPLE;
4487 } else if (!strcasecmp(cmd, "Qscale")) {
4488 get_arg(arg, sizeof(arg), &p);
4490 video_enc.flags |= CODEC_FLAG_QSCALE;
4491 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4493 } else if (!strcasecmp(cmd, "VideoQDiff")) {
4494 get_arg(arg, sizeof(arg), &p);
4496 video_enc.max_qdiff = atoi(arg);
4497 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4498 ERROR("VideoQDiff out of range\n");
4501 } else if (!strcasecmp(cmd, "VideoQMax")) {
4502 get_arg(arg, sizeof(arg), &p);
4504 video_enc.qmax = atoi(arg);
4505 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4506 ERROR("VideoQMax out of range\n");
4509 } else if (!strcasecmp(cmd, "VideoQMin")) {
4510 get_arg(arg, sizeof(arg), &p);
4512 video_enc.qmin = atoi(arg);
4513 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4514 ERROR("VideoQMin out of range\n");
4517 } else if (!strcasecmp(cmd, "LumaElim")) {
4518 get_arg(arg, sizeof(arg), &p);
4520 video_enc.luma_elim_threshold = atoi(arg);
4521 } else if (!strcasecmp(cmd, "ChromaElim")) {
4522 get_arg(arg, sizeof(arg), &p);
4524 video_enc.chroma_elim_threshold = atoi(arg);
4525 } else if (!strcasecmp(cmd, "LumiMask")) {
4526 get_arg(arg, sizeof(arg), &p);
4528 video_enc.lumi_masking = atof(arg);
4529 } else if (!strcasecmp(cmd, "DarkMask")) {
4530 get_arg(arg, sizeof(arg), &p);
4532 video_enc.dark_masking = atof(arg);
4533 } else if (!strcasecmp(cmd, "NoVideo")) {
4534 video_id = CODEC_ID_NONE;
4535 } else if (!strcasecmp(cmd, "NoAudio")) {
4536 audio_id = CODEC_ID_NONE;
4537 } else if (!strcasecmp(cmd, "ACL")) {
4538 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4539 } else if (!strcasecmp(cmd, "DynamicACL")) {
4541 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4543 } else if (!strcasecmp(cmd, "RTSPOption")) {
4544 get_arg(arg, sizeof(arg), &p);
4546 av_freep(&stream->rtsp_option);
4547 stream->rtsp_option = av_strdup(arg);
4549 } else if (!strcasecmp(cmd, "MulticastAddress")) {
4550 get_arg(arg, sizeof(arg), &p);
4552 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4553 ERROR("Invalid host/IP address: %s\n", arg);
4555 stream->is_multicast = 1;
4556 stream->loop = 1; /* default is looping */
4558 } else if (!strcasecmp(cmd, "MulticastPort")) {
4559 get_arg(arg, sizeof(arg), &p);
4561 stream->multicast_port = atoi(arg);
4562 } else if (!strcasecmp(cmd, "MulticastTTL")) {
4563 get_arg(arg, sizeof(arg), &p);
4565 stream->multicast_ttl = atoi(arg);
4566 } else if (!strcasecmp(cmd, "NoLoop")) {
4569 } else if (!strcasecmp(cmd, "</Stream>")) {
4571 ERROR("No corresponding <Stream> for </Stream>\n");
4573 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4574 if (audio_id != CODEC_ID_NONE) {
4575 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4576 audio_enc.codec_id = audio_id;
4577 add_codec(stream, &audio_enc);
4579 if (video_id != CODEC_ID_NONE) {
4580 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4581 video_enc.codec_id = video_id;
4582 add_codec(stream, &video_enc);
4587 } else if (!strcasecmp(cmd, "<Redirect")) {
4588 /*********************************************/
4590 if (stream || feed || redirect) {
4591 ERROR("Already in a tag\n");
4593 redirect = av_mallocz(sizeof(FFStream));
4594 *last_stream = redirect;
4595 last_stream = &redirect->next;
4597 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4598 q = strrchr(redirect->filename, '>');
4601 redirect->stream_type = STREAM_TYPE_REDIRECT;
4603 } else if (!strcasecmp(cmd, "URL")) {
4605 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4606 } else if (!strcasecmp(cmd, "</Redirect>")) {
4608 ERROR("No corresponding <Redirect> for </Redirect>\n");
4610 if (!redirect->feed_filename[0]) {
4611 ERROR("No URL found for <Redirect>\n");
4615 } else if (!strcasecmp(cmd, "LoadModule")) {
4616 get_arg(arg, sizeof(arg), &p);
4620 ERROR("Module support not compiled into this version: '%s'\n", arg);
4623 ERROR("Incorrect keyword: '%s'\n", cmd);
4635 static void handle_child_exit(int sig)
4640 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4643 for (feed = first_feed; feed; feed = feed->next) {
4644 if (feed->pid == pid) {
4645 int uptime = time(0) - feed->pid_start;
4648 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4651 /* Turn off any more restarts */
4652 feed->child_argv = 0;
4657 need_to_start_children = 1;
4660 static void opt_debug(void)
4663 ffserver_daemon = 0;
4664 logfilename[0] = '-';
4667 static void show_help(void)
4669 printf("usage: ffserver [options]\n"
4670 "Hyper fast multi format Audio/Video streaming server\n");
4672 show_help_options(options, "Main options:\n", 0, 0);
4675 static const OptionDef options[] = {
4676 #include "cmdutils_common_opts.h"
4677 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4678 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4679 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4683 int main(int argc, char **argv)
4685 struct sigaction sigact;
4691 my_program_name = argv[0];
4692 my_program_dir = getcwd(0, 0);
4693 ffserver_daemon = 1;
4695 parse_options(argc, argv, options, NULL);
4697 unsetenv("http_proxy"); /* Kill the http_proxy */
4699 av_lfg_init(&random_state, av_get_random_seed());
4701 memset(&sigact, 0, sizeof(sigact));
4702 sigact.sa_handler = handle_child_exit;
4703 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4704 sigaction(SIGCHLD, &sigact, 0);
4706 if (parse_ffconfig(config_filename) < 0) {
4707 fprintf(stderr, "Incorrect config file - exiting.\n");
4711 /* open log file if needed */
4712 if (logfilename[0] != '\0') {
4713 if (!strcmp(logfilename, "-"))
4716 logfile = fopen(logfilename, "a");
4717 av_log_set_callback(http_av_log);
4720 build_file_streams();
4722 build_feed_streams();
4724 compute_bandwidth();
4726 /* put the process in background and detach it from its TTY */
4727 if (ffserver_daemon) {
4734 } else if (pid > 0) {
4741 open("/dev/null", O_RDWR);
4742 if (strcmp(logfilename, "-") != 0) {
4752 signal(SIGPIPE, SIG_IGN);
4754 if (ffserver_daemon)
4757 if (http_server() < 0) {
4758 http_log("Could not start server\n");