2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multiple format streaming server based on the FFmpeg libraries
28 #define closesocket close
32 #include "libavformat/avformat.h"
33 // FIXME those are internal headers, ffserver _really_ shouldn't use them
34 #include "libavformat/ffm.h"
35 #include "libavformat/network.h"
36 #include "libavformat/os_support.h"
37 #include "libavformat/rtpdec.h"
38 #include "libavformat/rtsp.h"
39 #include "libavformat/avio_internal.h"
40 #include "libavformat/internal.h"
41 #include "libavformat/url.h"
43 #include "libavutil/avassert.h"
44 #include "libavutil/avstring.h"
45 #include "libavutil/lfg.h"
46 #include "libavutil/dict.h"
47 #include "libavutil/mathematics.h"
48 #include "libavutil/random_seed.h"
49 #include "libavutil/parseutils.h"
50 #include "libavutil/opt.h"
51 #include "libavutil/time.h"
56 #include <sys/ioctl.h>
70 const char program_name[] = "ffserver";
71 const int program_birth_year = 2000;
73 static const OptionDef options[];
76 HTTPSTATE_WAIT_REQUEST,
77 HTTPSTATE_SEND_HEADER,
78 HTTPSTATE_SEND_DATA_HEADER,
79 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
80 HTTPSTATE_SEND_DATA_TRAILER,
81 HTTPSTATE_RECEIVE_DATA,
82 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
85 RTSPSTATE_WAIT_REQUEST,
87 RTSPSTATE_SEND_PACKET,
90 static const char *http_state[] = {
106 #define MAX_STREAMS 20
108 #define IOBUFFER_INIT_SIZE 8192
110 /* timeouts are in ms */
111 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
112 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
114 #define SYNC_TIMEOUT (10 * 1000)
116 typedef struct RTSPActionServerSetup {
118 char transport_option[512];
119 } RTSPActionServerSetup;
122 int64_t count1, count2;
123 int64_t time1, time2;
126 /* context associated with one connection */
127 typedef struct HTTPContext {
128 enum HTTPState state;
129 int fd; /* socket file descriptor */
130 struct sockaddr_in from_addr; /* origin */
131 struct pollfd *poll_entry; /* used when polling */
133 uint8_t *buffer_ptr, *buffer_end;
136 int chunked_encoding;
137 int chunk_size; /* 0 if it needs to be read */
138 struct HTTPContext *next;
139 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
143 /* input format handling */
144 AVFormatContext *fmt_in;
145 int64_t start_time; /* In milliseconds - this wraps fairly often */
146 int64_t first_pts; /* initial pts value */
147 int64_t cur_pts; /* current pts value from the stream in us */
148 int64_t cur_frame_duration; /* duration of the current frame in us */
149 int cur_frame_bytes; /* output frame size, needed to compute
150 the time at which we send each
152 int pts_stream_index; /* stream we choose as clock reference */
153 int64_t cur_clock; /* current clock reference value in us */
154 /* output format handling */
155 struct FFStream *stream;
156 /* -1 is invalid stream */
157 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
158 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
160 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
161 int last_packet_sent; /* true if last data packet was sent */
163 DataRateData datarate;
170 int is_packetized; /* if true, the stream is packetized */
171 int packet_stream_index; /* current stream for output in state machine */
173 /* RTSP state specific */
174 uint8_t *pb_buffer; /* XXX: use that in all the code */
176 int seq; /* RTSP sequence number */
178 /* RTP state specific */
179 enum RTSPLowerTransport rtp_protocol;
180 char session_id[32]; /* session id */
181 AVFormatContext *rtp_ctx[MAX_STREAMS];
183 /* RTP/UDP specific */
184 URLContext *rtp_handles[MAX_STREAMS];
186 /* RTP/TCP specific */
187 struct HTTPContext *rtsp_c;
188 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
191 /* each generated stream is described here */
195 STREAM_TYPE_REDIRECT,
198 enum IPAddressAction {
203 typedef struct IPAddressACL {
204 struct IPAddressACL *next;
205 enum IPAddressAction action;
206 /* These are in host order */
207 struct in_addr first;
211 /* description of each stream of the ffserver.conf file */
212 typedef struct FFStream {
213 enum StreamType stream_type;
214 char filename[1024]; /* stream filename */
215 struct FFStream *feed; /* feed we are using (can be null if
217 AVDictionary *in_opts; /* input parameters */
218 AVInputFormat *ifmt; /* if non NULL, force input format */
221 char dynamic_acl[1024];
223 int prebuffer; /* Number of millseconds early to start */
224 int64_t max_time; /* Number of milliseconds to run */
226 AVStream *streams[MAX_STREAMS];
227 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
228 char feed_filename[1024]; /* file name of the feed storage, or
229 input file name for a stream */
234 pid_t pid; /* Of ffmpeg process */
235 time_t pid_start; /* Of ffmpeg process */
237 struct FFStream *next;
238 unsigned bandwidth; /* bandwidth, in kbits/s */
241 /* multicast specific */
243 struct in_addr multicast_ip;
244 int multicast_port; /* first port used for multicast */
246 int loop; /* if true, send the stream in loops (only meaningful if file) */
249 int feed_opened; /* true if someone is writing to the feed */
250 int is_feed; /* true if it is a feed */
251 int readonly; /* True if writing is prohibited to the file */
252 int truncate; /* True if feeder connection truncate the feed file */
254 int64_t bytes_served;
255 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
256 int64_t feed_write_index; /* current write position in feed (it wraps around) */
257 int64_t feed_size; /* current size of feed */
258 struct FFStream *next_feed;
261 typedef struct FeedData {
262 long long data_count;
263 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
266 static struct sockaddr_in my_http_addr;
267 static struct sockaddr_in my_rtsp_addr;
269 static char logfilename[1024];
270 static HTTPContext *first_http_ctx;
271 static FFStream *first_feed; /* contains only feeds */
272 static FFStream *first_stream; /* contains all streams, including feeds */
274 static void new_connection(int server_fd, int is_rtsp);
275 static void close_connection(HTTPContext *c);
278 static int handle_connection(HTTPContext *c);
279 static int http_parse_request(HTTPContext *c);
280 static int http_send_data(HTTPContext *c);
281 static void compute_status(HTTPContext *c);
282 static int open_input_stream(HTTPContext *c, const char *info);
283 static int http_start_receive_data(HTTPContext *c);
284 static int http_receive_data(HTTPContext *c);
287 static int rtsp_parse_request(HTTPContext *c);
288 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
289 static void rtsp_cmd_options(HTTPContext *c, const char *url);
290 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
291 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
292 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
293 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
296 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
297 struct in_addr my_ip);
300 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
301 FFStream *stream, const char *session_id,
302 enum RTSPLowerTransport rtp_protocol);
303 static int rtp_new_av_stream(HTTPContext *c,
304 int stream_index, struct sockaddr_in *dest_addr,
305 HTTPContext *rtsp_c);
307 static const char *my_program_name;
308 static const char *my_program_dir;
310 static const char *config_filename = "/etc/ffserver.conf";
312 static int ffserver_debug;
313 static int ffserver_daemon;
314 static int no_launch;
315 static int need_to_start_children;
317 /* maximum number of simultaneous HTTP connections */
318 static unsigned int nb_max_http_connections = 2000;
319 static unsigned int nb_max_connections = 5;
320 static unsigned int nb_connections;
322 static uint64_t max_bandwidth = 1000;
323 static uint64_t current_bandwidth;
325 static int64_t cur_time; // Making this global saves on passing it around everywhere
327 static AVLFG random_state;
329 static FILE *logfile = NULL;
331 /* FIXME: make ffserver work with IPv6 */
332 void av_noreturn exit_program(int ret)
337 /* resolve host with also IP address parsing */
338 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
341 if (!ff_inet_aton(hostname, sin_addr)) {
343 struct addrinfo *ai, *cur;
344 struct addrinfo hints = { 0 };
345 hints.ai_family = AF_INET;
346 if (getaddrinfo(hostname, NULL, &hints, &ai))
348 /* getaddrinfo returns a linked list of addrinfo structs.
349 * Even if we set ai_family = AF_INET above, make sure
350 * that the returned one actually is of the correct type. */
351 for (cur = ai; cur; cur = cur->ai_next) {
352 if (cur->ai_family == AF_INET) {
353 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
362 hp = gethostbyname(hostname);
365 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
371 static char *ctime1(char *buf2)
379 p = buf2 + strlen(p) - 1;
385 static void http_vlog(const char *fmt, va_list vargs)
387 static int print_prefix = 1;
392 fprintf(logfile, "%s ", buf);
394 print_prefix = strstr(fmt, "\n") != NULL;
395 vfprintf(logfile, fmt, vargs);
401 __attribute__ ((format (printf, 1, 2)))
403 static void http_log(const char *fmt, ...)
406 va_start(vargs, fmt);
407 http_vlog(fmt, vargs);
411 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
413 static int print_prefix = 1;
414 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
415 if (level > av_log_get_level())
417 if (print_prefix && avc)
418 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
419 print_prefix = strstr(fmt, "\n") != NULL;
420 http_vlog(fmt, vargs);
423 static void log_connection(HTTPContext *c)
428 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
429 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
430 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
433 static void update_datarate(DataRateData *drd, int64_t count)
435 if (!drd->time1 && !drd->count1) {
436 drd->time1 = drd->time2 = cur_time;
437 drd->count1 = drd->count2 = count;
438 } else if (cur_time - drd->time2 > 5000) {
439 drd->time1 = drd->time2;
440 drd->count1 = drd->count2;
441 drd->time2 = cur_time;
446 /* In bytes per second */
447 static int compute_datarate(DataRateData *drd, int64_t count)
449 if (cur_time == drd->time1)
452 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
456 static void start_children(FFStream *feed)
461 for (; feed; feed = feed->next) {
462 if (feed->child_argv && !feed->pid) {
463 feed->pid_start = time(0);
468 http_log("Unable to create children\n");
477 av_strlcpy(pathname, my_program_name, sizeof(pathname));
479 slash = strrchr(pathname, '/');
484 strcpy(slash, "ffmpeg");
486 http_log("Launch command line: ");
487 http_log("%s ", pathname);
488 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
489 http_log("%s ", feed->child_argv[i]);
492 for (i = 3; i < 256; i++)
495 if (!ffserver_debug) {
496 i = open("/dev/null", O_RDWR);
505 /* This is needed to make relative pathnames work */
506 if (chdir(my_program_dir) < 0) {
507 http_log("chdir failed\n");
511 signal(SIGPIPE, SIG_DFL);
513 execvp(pathname, feed->child_argv);
521 /* open a listening socket */
522 static int socket_open_listen(struct sockaddr_in *my_addr)
526 server_fd = socket(AF_INET,SOCK_STREAM,0);
533 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
535 my_addr->sin_family = AF_INET;
536 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
538 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
540 closesocket(server_fd);
544 if (listen (server_fd, 5) < 0) {
546 closesocket(server_fd);
549 ff_socket_nonblock(server_fd, 1);
554 /* start all multicast streams */
555 static void start_multicast(void)
560 struct sockaddr_in dest_addr;
561 int default_port, stream_index;
564 for(stream = first_stream; stream != NULL; stream = stream->next) {
565 if (stream->is_multicast) {
566 unsigned random0 = av_lfg_get(&random_state);
567 unsigned random1 = av_lfg_get(&random_state);
568 /* open the RTP connection */
569 snprintf(session_id, sizeof(session_id), "%08x%08x",
572 /* choose a port if none given */
573 if (stream->multicast_port == 0) {
574 stream->multicast_port = default_port;
578 dest_addr.sin_family = AF_INET;
579 dest_addr.sin_addr = stream->multicast_ip;
580 dest_addr.sin_port = htons(stream->multicast_port);
582 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
583 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
587 if (open_input_stream(rtp_c, "") < 0) {
588 http_log("Could not open input stream for stream '%s'\n",
593 /* open each RTP stream */
594 for(stream_index = 0; stream_index < stream->nb_streams;
596 dest_addr.sin_port = htons(stream->multicast_port +
598 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
599 http_log("Could not open output stream '%s/streamid=%d'\n",
600 stream->filename, stream_index);
605 /* change state to send data */
606 rtp_c->state = HTTPSTATE_SEND_DATA;
611 /* main loop of the http server */
612 static int http_server(void)
614 int server_fd = 0, rtsp_server_fd = 0;
615 int ret, delay, delay1;
616 struct pollfd *poll_table, *poll_entry;
617 HTTPContext *c, *c_next;
619 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
620 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
624 if (my_http_addr.sin_port) {
625 server_fd = socket_open_listen(&my_http_addr);
630 if (my_rtsp_addr.sin_port) {
631 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
632 if (rtsp_server_fd < 0)
636 if (!rtsp_server_fd && !server_fd) {
637 http_log("HTTP and RTSP disabled.\n");
641 http_log("FFserver started.\n");
643 start_children(first_feed);
648 poll_entry = poll_table;
650 poll_entry->fd = server_fd;
651 poll_entry->events = POLLIN;
654 if (rtsp_server_fd) {
655 poll_entry->fd = rtsp_server_fd;
656 poll_entry->events = POLLIN;
660 /* wait for events on each HTTP handle */
667 case HTTPSTATE_SEND_HEADER:
668 case RTSPSTATE_SEND_REPLY:
669 case RTSPSTATE_SEND_PACKET:
670 c->poll_entry = poll_entry;
672 poll_entry->events = POLLOUT;
675 case HTTPSTATE_SEND_DATA_HEADER:
676 case HTTPSTATE_SEND_DATA:
677 case HTTPSTATE_SEND_DATA_TRAILER:
678 if (!c->is_packetized) {
679 /* for TCP, we output as much as we can (may need to put a limit) */
680 c->poll_entry = poll_entry;
682 poll_entry->events = POLLOUT;
685 /* when ffserver is doing the timing, we work by
686 looking at which packet need to be sent every
688 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
693 case HTTPSTATE_WAIT_REQUEST:
694 case HTTPSTATE_RECEIVE_DATA:
695 case HTTPSTATE_WAIT_FEED:
696 case RTSPSTATE_WAIT_REQUEST:
697 /* need to catch errors */
698 c->poll_entry = poll_entry;
700 poll_entry->events = POLLIN;/* Maybe this will work */
704 c->poll_entry = NULL;
710 /* wait for an event on one connection. We poll at least every
711 second to handle timeouts */
713 ret = poll(poll_table, poll_entry - poll_table, delay);
714 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
715 ff_neterrno() != AVERROR(EINTR))
719 cur_time = av_gettime() / 1000;
721 if (need_to_start_children) {
722 need_to_start_children = 0;
723 start_children(first_feed);
726 /* now handle the events */
727 for(c = first_http_ctx; c != NULL; c = c_next) {
729 if (handle_connection(c) < 0) {
730 /* close and free the connection */
736 poll_entry = poll_table;
738 /* new HTTP connection request ? */
739 if (poll_entry->revents & POLLIN)
740 new_connection(server_fd, 0);
743 if (rtsp_server_fd) {
744 /* new RTSP connection request ? */
745 if (poll_entry->revents & POLLIN)
746 new_connection(rtsp_server_fd, 1);
751 /* start waiting for a new HTTP/RTSP request */
752 static void start_wait_request(HTTPContext *c, int is_rtsp)
754 c->buffer_ptr = c->buffer;
755 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
758 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
759 c->state = RTSPSTATE_WAIT_REQUEST;
761 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
762 c->state = HTTPSTATE_WAIT_REQUEST;
766 static void http_send_too_busy_reply(int fd)
769 int len = snprintf(buffer, sizeof(buffer),
770 "HTTP/1.0 503 Server too busy\r\n"
771 "Content-type: text/html\r\n"
773 "<html><head><title>Too busy</title></head><body>\r\n"
774 "<p>The server is too busy to serve your request at this time.</p>\r\n"
775 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
776 "</body></html>\r\n",
777 nb_connections, nb_max_connections);
778 av_assert0(len < sizeof(buffer));
779 send(fd, buffer, len, 0);
783 static void new_connection(int server_fd, int is_rtsp)
785 struct sockaddr_in from_addr;
787 HTTPContext *c = NULL;
789 len = sizeof(from_addr);
790 fd = accept(server_fd, (struct sockaddr *)&from_addr,
793 http_log("error during accept %s\n", strerror(errno));
796 ff_socket_nonblock(fd, 1);
798 if (nb_connections >= nb_max_connections) {
799 http_send_too_busy_reply(fd);
803 /* add a new connection */
804 c = av_mallocz(sizeof(HTTPContext));
809 c->poll_entry = NULL;
810 c->from_addr = from_addr;
811 c->buffer_size = IOBUFFER_INIT_SIZE;
812 c->buffer = av_malloc(c->buffer_size);
816 c->next = first_http_ctx;
820 start_wait_request(c, is_rtsp);
832 static void close_connection(HTTPContext *c)
834 HTTPContext **cp, *c1;
836 AVFormatContext *ctx;
840 /* remove connection from list */
841 cp = &first_http_ctx;
842 while ((*cp) != NULL) {
850 /* remove references, if any (XXX: do it faster) */
851 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
856 /* remove connection associated resources */
860 /* close each frame parser */
861 for(i=0;i<c->fmt_in->nb_streams;i++) {
862 st = c->fmt_in->streams[i];
863 if (st->codec->codec)
864 avcodec_close(st->codec);
866 avformat_close_input(&c->fmt_in);
869 /* free RTP output streams if any */
872 nb_streams = c->stream->nb_streams;
874 for(i=0;i<nb_streams;i++) {
877 av_write_trailer(ctx);
878 av_dict_free(&ctx->metadata);
879 av_free(ctx->streams[0]);
882 h = c->rtp_handles[i];
889 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
892 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
893 av_write_trailer(ctx);
894 av_freep(&c->pb_buffer);
895 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
900 for(i=0; i<ctx->nb_streams; i++)
901 av_free(ctx->streams[i]);
903 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
904 current_bandwidth -= c->stream->bandwidth;
906 /* signal that there is no feed if we are the feeder socket */
907 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
908 c->stream->feed_opened = 0;
912 av_freep(&c->pb_buffer);
913 av_freep(&c->packet_buffer);
919 static int handle_connection(HTTPContext *c)
924 case HTTPSTATE_WAIT_REQUEST:
925 case RTSPSTATE_WAIT_REQUEST:
927 if ((c->timeout - cur_time) < 0)
929 if (c->poll_entry->revents & (POLLERR | POLLHUP))
932 /* no need to read if no events */
933 if (!(c->poll_entry->revents & POLLIN))
937 len = recv(c->fd, c->buffer_ptr, 1, 0);
939 if (ff_neterrno() != AVERROR(EAGAIN) &&
940 ff_neterrno() != AVERROR(EINTR))
942 } else if (len == 0) {
945 /* search for end of request. */
947 c->buffer_ptr += len;
949 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
950 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
951 /* request found : parse it and reply */
952 if (c->state == HTTPSTATE_WAIT_REQUEST) {
953 ret = http_parse_request(c);
955 ret = rtsp_parse_request(c);
959 } else if (ptr >= c->buffer_end) {
960 /* request too long: cannot do anything */
962 } else goto read_loop;
966 case HTTPSTATE_SEND_HEADER:
967 if (c->poll_entry->revents & (POLLERR | POLLHUP))
970 /* no need to write if no events */
971 if (!(c->poll_entry->revents & POLLOUT))
973 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
975 if (ff_neterrno() != AVERROR(EAGAIN) &&
976 ff_neterrno() != AVERROR(EINTR)) {
977 /* error : close connection */
978 av_freep(&c->pb_buffer);
982 c->buffer_ptr += len;
984 c->stream->bytes_served += len;
985 c->data_count += len;
986 if (c->buffer_ptr >= c->buffer_end) {
987 av_freep(&c->pb_buffer);
991 /* all the buffer was sent : synchronize to the incoming stream */
992 c->state = HTTPSTATE_SEND_DATA_HEADER;
993 c->buffer_ptr = c->buffer_end = c->buffer;
998 case HTTPSTATE_SEND_DATA:
999 case HTTPSTATE_SEND_DATA_HEADER:
1000 case HTTPSTATE_SEND_DATA_TRAILER:
1001 /* for packetized output, we consider we can always write (the
1002 input streams sets the speed). It may be better to verify
1003 that we do not rely too much on the kernel queues */
1004 if (!c->is_packetized) {
1005 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1008 /* no need to read if no events */
1009 if (!(c->poll_entry->revents & POLLOUT))
1012 if (http_send_data(c) < 0)
1014 /* close connection if trailer sent */
1015 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1018 case HTTPSTATE_RECEIVE_DATA:
1019 /* no need to read if no events */
1020 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1022 if (!(c->poll_entry->revents & POLLIN))
1024 if (http_receive_data(c) < 0)
1027 case HTTPSTATE_WAIT_FEED:
1028 /* no need to read if no events */
1029 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1032 /* nothing to do, we'll be waken up by incoming feed packets */
1035 case RTSPSTATE_SEND_REPLY:
1036 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1037 av_freep(&c->pb_buffer);
1040 /* no need to write if no events */
1041 if (!(c->poll_entry->revents & POLLOUT))
1043 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1045 if (ff_neterrno() != AVERROR(EAGAIN) &&
1046 ff_neterrno() != AVERROR(EINTR)) {
1047 /* error : close connection */
1048 av_freep(&c->pb_buffer);
1052 c->buffer_ptr += len;
1053 c->data_count += len;
1054 if (c->buffer_ptr >= c->buffer_end) {
1055 /* all the buffer was sent : wait for a new request */
1056 av_freep(&c->pb_buffer);
1057 start_wait_request(c, 1);
1061 case RTSPSTATE_SEND_PACKET:
1062 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1063 av_freep(&c->packet_buffer);
1066 /* no need to write if no events */
1067 if (!(c->poll_entry->revents & POLLOUT))
1069 len = send(c->fd, c->packet_buffer_ptr,
1070 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1072 if (ff_neterrno() != AVERROR(EAGAIN) &&
1073 ff_neterrno() != AVERROR(EINTR)) {
1074 /* error : close connection */
1075 av_freep(&c->packet_buffer);
1079 c->packet_buffer_ptr += len;
1080 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1081 /* all the buffer was sent : wait for a new request */
1082 av_freep(&c->packet_buffer);
1083 c->state = RTSPSTATE_WAIT_REQUEST;
1087 case HTTPSTATE_READY:
1096 static int extract_rates(char *rates, int ratelen, const char *request)
1100 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1101 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1102 const char *q = p + 7;
1104 while (*q && *q != '\n' && isspace(*q))
1107 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1113 memset(rates, 0xff, ratelen);
1116 while (*q && *q != '\n' && *q != ':')
1119 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1123 if (stream_no < ratelen && stream_no >= 0)
1124 rates[stream_no] = rate_no;
1126 while (*q && *q != '\n' && !isspace(*q))
1133 p = strchr(p, '\n');
1143 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1146 int best_bitrate = 100000000;
1149 for (i = 0; i < feed->nb_streams; i++) {
1150 AVCodecContext *feed_codec = feed->streams[i]->codec;
1152 if (feed_codec->codec_id != codec->codec_id ||
1153 feed_codec->sample_rate != codec->sample_rate ||
1154 feed_codec->width != codec->width ||
1155 feed_codec->height != codec->height)
1158 /* Potential stream */
1160 /* We want the fastest stream less than bit_rate, or the slowest
1161 * faster than bit_rate
1164 if (feed_codec->bit_rate <= bit_rate) {
1165 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1166 best_bitrate = feed_codec->bit_rate;
1170 if (feed_codec->bit_rate < best_bitrate) {
1171 best_bitrate = feed_codec->bit_rate;
1180 static int modify_current_stream(HTTPContext *c, char *rates)
1183 FFStream *req = c->stream;
1184 int action_required = 0;
1186 /* Not much we can do for a feed */
1190 for (i = 0; i < req->nb_streams; i++) {
1191 AVCodecContext *codec = req->streams[i]->codec;
1195 c->switch_feed_streams[i] = req->feed_streams[i];
1198 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1201 /* Wants off or slow */
1202 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1204 /* This doesn't work well when it turns off the only stream! */
1205 c->switch_feed_streams[i] = -2;
1206 c->feed_streams[i] = -2;
1211 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1212 action_required = 1;
1215 return action_required;
1218 /* XXX: factorize in utils.c ? */
1219 /* XXX: take care with different space meaning */
1220 static void skip_spaces(const char **pp)
1224 while (*p == ' ' || *p == '\t')
1229 static void get_word(char *buf, int buf_size, const char **pp)
1237 while (!isspace(*p) && *p != '\0') {
1238 if ((q - buf) < buf_size - 1)
1247 static void get_arg(char *buf, int buf_size, const char **pp)
1254 while (isspace(*p)) p++;
1257 if (*p == '\"' || *p == '\'')
1269 if ((q - buf) < buf_size - 1)
1274 if (quote && *p == quote)
1279 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1280 const char *p, const char *filename, int line_num)
1286 get_arg(arg, sizeof(arg), &p);
1287 if (av_strcasecmp(arg, "allow") == 0)
1288 acl.action = IP_ALLOW;
1289 else if (av_strcasecmp(arg, "deny") == 0)
1290 acl.action = IP_DENY;
1292 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1293 filename, line_num, arg);
1297 get_arg(arg, sizeof(arg), &p);
1299 if (resolve_host(&acl.first, arg) != 0) {
1300 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1301 filename, line_num, arg);
1304 acl.last = acl.first;
1306 get_arg(arg, sizeof(arg), &p);
1309 if (resolve_host(&acl.last, arg) != 0) {
1310 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1311 filename, line_num, arg);
1317 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1318 IPAddressACL **naclp = 0;
1324 naclp = &stream->acl;
1330 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1331 filename, line_num);
1337 naclp = &(*naclp)->next;
1345 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1350 IPAddressACL *acl = NULL;
1354 f = fopen(stream->dynamic_acl, "r");
1356 perror(stream->dynamic_acl);
1360 acl = av_mallocz(sizeof(IPAddressACL));
1364 if (fgets(line, sizeof(line), f) == NULL)
1370 if (*p == '\0' || *p == '#')
1372 get_arg(cmd, sizeof(cmd), &p);
1374 if (!av_strcasecmp(cmd, "ACL"))
1375 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1382 static void free_acl_list(IPAddressACL *in_acl)
1384 IPAddressACL *pacl,*pacl2;
1394 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1396 enum IPAddressAction last_action = IP_DENY;
1398 struct in_addr *src = &c->from_addr.sin_addr;
1399 unsigned long src_addr = src->s_addr;
1401 for (acl = in_acl; acl; acl = acl->next) {
1402 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1403 return (acl->action == IP_ALLOW) ? 1 : 0;
1404 last_action = acl->action;
1407 /* Nothing matched, so return not the last action */
1408 return (last_action == IP_DENY) ? 1 : 0;
1411 static int validate_acl(FFStream *stream, HTTPContext *c)
1417 /* if stream->acl is null validate_acl_list will return 1 */
1418 ret = validate_acl_list(stream->acl, c);
1420 if (stream->dynamic_acl[0]) {
1421 acl = parse_dynamic_acl(stream, c);
1423 ret = validate_acl_list(acl, c);
1431 /* compute the real filename of a file by matching it without its
1432 extensions to all the stream filenames */
1433 static void compute_real_filename(char *filename, int max_size)
1440 /* compute filename by matching without the file extensions */
1441 av_strlcpy(file1, filename, sizeof(file1));
1442 p = strrchr(file1, '.');
1445 for(stream = first_stream; stream != NULL; stream = stream->next) {
1446 av_strlcpy(file2, stream->filename, sizeof(file2));
1447 p = strrchr(file2, '.');
1450 if (!strcmp(file1, file2)) {
1451 av_strlcpy(filename, stream->filename, max_size);
1466 /* parse http request and prepare header */
1467 static int http_parse_request(HTTPContext *c)
1470 enum RedirType redir_type;
1472 char info[1024], filename[1024];
1476 const char *mime_type;
1480 char *useragent = 0;
1483 get_word(cmd, sizeof(cmd), (const char **)&p);
1484 av_strlcpy(c->method, cmd, sizeof(c->method));
1486 if (!strcmp(cmd, "GET"))
1488 else if (!strcmp(cmd, "POST"))
1493 get_word(url, sizeof(url), (const char **)&p);
1494 av_strlcpy(c->url, url, sizeof(c->url));
1496 get_word(protocol, sizeof(protocol), (const char **)&p);
1497 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1500 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1503 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1505 /* find the filename and the optional info string in the request */
1506 p = strchr(url, '?');
1508 av_strlcpy(info, p, sizeof(info));
1513 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1515 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1516 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1518 if (*useragent && *useragent != '\n' && isspace(*useragent))
1522 p = strchr(p, '\n');
1529 redir_type = REDIR_NONE;
1530 if (av_match_ext(filename, "asx")) {
1531 redir_type = REDIR_ASX;
1532 filename[strlen(filename)-1] = 'f';
1533 } else if (av_match_ext(filename, "asf") &&
1534 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1535 /* if this isn't WMP or lookalike, return the redirector file */
1536 redir_type = REDIR_ASF;
1537 } else if (av_match_ext(filename, "rpm,ram")) {
1538 redir_type = REDIR_RAM;
1539 strcpy(filename + strlen(filename)-2, "m");
1540 } else if (av_match_ext(filename, "rtsp")) {
1541 redir_type = REDIR_RTSP;
1542 compute_real_filename(filename, sizeof(filename) - 1);
1543 } else if (av_match_ext(filename, "sdp")) {
1544 redir_type = REDIR_SDP;
1545 compute_real_filename(filename, sizeof(filename) - 1);
1548 // "redirect" / request to index.html
1549 if (!strlen(filename))
1550 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1552 stream = first_stream;
1553 while (stream != NULL) {
1554 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1556 stream = stream->next;
1558 if (stream == NULL) {
1559 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1560 http_log("File '%s' not found\n", url);
1565 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1566 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1568 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1569 c->http_error = 301;
1571 snprintf(q, c->buffer_size,
1572 "HTTP/1.0 301 Moved\r\n"
1574 "Content-type: text/html\r\n"
1576 "<html><head><title>Moved</title></head><body>\r\n"
1577 "You should be <a href=\"%s\">redirected</a>.\r\n"
1578 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1580 /* prepare output buffer */
1581 c->buffer_ptr = c->buffer;
1583 c->state = HTTPSTATE_SEND_HEADER;
1587 /* If this is WMP, get the rate information */
1588 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1589 if (modify_current_stream(c, ratebuf)) {
1590 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1591 if (c->switch_feed_streams[i] >= 0)
1592 c->switch_feed_streams[i] = -1;
1597 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1598 current_bandwidth += stream->bandwidth;
1600 /* If already streaming this feed, do not let start another feeder. */
1601 if (stream->feed_opened) {
1602 snprintf(msg, sizeof(msg), "This feed is already being received.");
1603 http_log("Feed '%s' already being received\n", stream->feed_filename);
1607 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1608 c->http_error = 503;
1610 snprintf(q, c->buffer_size,
1611 "HTTP/1.0 503 Server too busy\r\n"
1612 "Content-type: text/html\r\n"
1614 "<html><head><title>Too busy</title></head><body>\r\n"
1615 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1616 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1617 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1618 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1620 /* prepare output buffer */
1621 c->buffer_ptr = c->buffer;
1623 c->state = HTTPSTATE_SEND_HEADER;
1627 if (redir_type != REDIR_NONE) {
1630 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1631 if (av_strncasecmp(p, "Host:", 5) == 0) {
1635 p = strchr(p, '\n');
1646 while (isspace(*hostinfo))
1649 eoh = strchr(hostinfo, '\n');
1651 if (eoh[-1] == '\r')
1654 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1655 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1656 hostbuf[eoh - hostinfo] = 0;
1658 c->http_error = 200;
1660 switch(redir_type) {
1662 snprintf(q, c->buffer_size,
1663 "HTTP/1.0 200 ASX Follows\r\n"
1664 "Content-type: video/x-ms-asf\r\n"
1666 "<ASX Version=\"3\">\r\n"
1667 //"<!-- Autogenerated by ffserver -->\r\n"
1668 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1669 "</ASX>\r\n", hostbuf, filename, info);
1673 snprintf(q, c->buffer_size,
1674 "HTTP/1.0 200 RAM Follows\r\n"
1675 "Content-type: audio/x-pn-realaudio\r\n"
1677 "# Autogenerated by ffserver\r\n"
1678 "http://%s/%s%s\r\n", hostbuf, filename, info);
1682 snprintf(q, c->buffer_size,
1683 "HTTP/1.0 200 ASF Redirect follows\r\n"
1684 "Content-type: video/x-ms-asf\r\n"
1687 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1692 char hostname[256], *p;
1693 /* extract only hostname */
1694 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1695 p = strrchr(hostname, ':');
1698 snprintf(q, c->buffer_size,
1699 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1700 /* XXX: incorrect mime type ? */
1701 "Content-type: application/x-rtsp\r\n"
1703 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1710 int sdp_data_size, len;
1711 struct sockaddr_in my_addr;
1713 snprintf(q, c->buffer_size,
1714 "HTTP/1.0 200 OK\r\n"
1715 "Content-type: application/sdp\r\n"
1719 len = sizeof(my_addr);
1720 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1722 /* XXX: should use a dynamic buffer */
1723 sdp_data_size = prepare_sdp_description(stream,
1726 if (sdp_data_size > 0) {
1727 memcpy(q, sdp_data, sdp_data_size);
1739 /* prepare output buffer */
1740 c->buffer_ptr = c->buffer;
1742 c->state = HTTPSTATE_SEND_HEADER;
1748 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1752 stream->conns_served++;
1754 /* XXX: add there authenticate and IP match */
1757 /* if post, it means a feed is being sent */
1758 if (!stream->is_feed) {
1759 /* However it might be a status report from WMP! Let us log the
1760 * data as it might come in handy one day. */
1764 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1765 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1769 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1770 client_id = strtol(p + 18, 0, 10);
1771 p = strchr(p, '\n');
1779 char *eol = strchr(logline, '\n');
1784 if (eol[-1] == '\r')
1786 http_log("%.*s\n", (int) (eol - logline), logline);
1787 c->suppress_log = 1;
1792 http_log("\nGot request:\n%s\n", c->buffer);
1795 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1798 /* Now we have to find the client_id */
1799 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1800 if (wmpc->wmp_client_id == client_id)
1804 if (wmpc && modify_current_stream(wmpc, ratebuf))
1805 wmpc->switch_pending = 1;
1808 snprintf(msg, sizeof(msg), "POST command not handled");
1812 if (http_start_receive_data(c) < 0) {
1813 snprintf(msg, sizeof(msg), "could not open feed");
1817 c->state = HTTPSTATE_RECEIVE_DATA;
1822 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1823 http_log("\nGot request:\n%s\n", c->buffer);
1826 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1829 /* open input stream */
1830 if (open_input_stream(c, info) < 0) {
1831 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1835 /* prepare http header */
1837 av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n");
1838 mime_type = c->stream->fmt->mime_type;
1840 mime_type = "application/x-octet-stream";
1841 av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n");
1843 /* for asf, we need extra headers */
1844 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1845 /* Need to allocate a client id */
1847 c->wmp_client_id = av_lfg_get(&random_state);
1849 av_strlcatf(c->buffer, c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
1851 av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type);
1852 av_strlcatf(c->buffer, c->buffer_size, "\r\n");
1853 q = c->buffer + strlen(c->buffer);
1855 /* prepare output buffer */
1857 c->buffer_ptr = c->buffer;
1859 c->state = HTTPSTATE_SEND_HEADER;
1862 c->http_error = 404;
1864 snprintf(q, c->buffer_size,
1865 "HTTP/1.0 404 Not Found\r\n"
1866 "Content-type: text/html\r\n"
1869 "<head><title>404 Not Found</title></head>\n"
1873 /* prepare output buffer */
1874 c->buffer_ptr = c->buffer;
1876 c->state = HTTPSTATE_SEND_HEADER;
1880 c->http_error = 200; /* horrible : we use this value to avoid
1881 going to the send data state */
1882 c->state = HTTPSTATE_SEND_HEADER;
1886 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1888 static const char suffix[] = " kMGTP";
1891 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1893 avio_printf(pb, "%"PRId64"%c", count, *s);
1896 static void compute_status(HTTPContext *c)
1905 if (avio_open_dyn_buf(&pb) < 0) {
1906 /* XXX: return an error ? */
1907 c->buffer_ptr = c->buffer;
1908 c->buffer_end = c->buffer;
1912 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1913 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1914 avio_printf(pb, "Pragma: no-cache\r\n");
1915 avio_printf(pb, "\r\n");
1917 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1918 if (c->stream->feed_filename[0])
1919 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1920 avio_printf(pb, "</head>\n<body>");
1921 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1923 avio_printf(pb, "<h2>Available Streams</h2>\n");
1924 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1925 avio_printf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>kbits/s<th align=left>Video<br>kbits/s<th><br>Codec<th align=left>Audio<br>kbits/s<th><br>Codec<th align=left valign=top>Feed\n");
1926 stream = first_stream;
1927 while (stream != NULL) {
1928 char sfilename[1024];
1931 if (stream->feed != stream) {
1932 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1933 eosf = sfilename + strlen(sfilename);
1934 if (eosf - sfilename >= 4) {
1935 if (strcmp(eosf - 4, ".asf") == 0)
1936 strcpy(eosf - 4, ".asx");
1937 else if (strcmp(eosf - 3, ".rm") == 0)
1938 strcpy(eosf - 3, ".ram");
1939 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1940 /* generate a sample RTSP director if
1941 unicast. Generate an SDP redirector if
1943 eosf = strrchr(sfilename, '.');
1945 eosf = sfilename + strlen(sfilename);
1946 if (stream->is_multicast)
1947 strcpy(eosf, ".sdp");
1949 strcpy(eosf, ".rtsp");
1953 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1954 sfilename, stream->filename);
1955 avio_printf(pb, "<td align=right> %d <td align=right> ",
1956 stream->conns_served);
1957 fmt_bytecount(pb, stream->bytes_served);
1958 switch(stream->stream_type) {
1959 case STREAM_TYPE_LIVE: {
1960 int audio_bit_rate = 0;
1961 int video_bit_rate = 0;
1962 const char *audio_codec_name = "";
1963 const char *video_codec_name = "";
1964 const char *audio_codec_name_extra = "";
1965 const char *video_codec_name_extra = "";
1967 for(i=0;i<stream->nb_streams;i++) {
1968 AVStream *st = stream->streams[i];
1969 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1970 switch(st->codec->codec_type) {
1971 case AVMEDIA_TYPE_AUDIO:
1972 audio_bit_rate += st->codec->bit_rate;
1974 if (*audio_codec_name)
1975 audio_codec_name_extra = "...";
1976 audio_codec_name = codec->name;
1979 case AVMEDIA_TYPE_VIDEO:
1980 video_bit_rate += st->codec->bit_rate;
1982 if (*video_codec_name)
1983 video_codec_name_extra = "...";
1984 video_codec_name = codec->name;
1987 case AVMEDIA_TYPE_DATA:
1988 video_bit_rate += st->codec->bit_rate;
1994 avio_printf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s",
1997 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1998 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
2000 avio_printf(pb, "<td>%s", stream->feed->filename);
2002 avio_printf(pb, "<td>%s", stream->feed_filename);
2003 avio_printf(pb, "\n");
2007 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
2011 stream = stream->next;
2013 avio_printf(pb, "</table>\n");
2015 stream = first_stream;
2016 while (stream != NULL) {
2017 if (stream->feed == stream) {
2018 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2020 avio_printf(pb, "Running as pid %d.\n", stream->pid);
2022 #if defined(linux) && !defined(CONFIG_NOCUTILS)
2027 /* This is somewhat linux specific I guess */
2028 snprintf(ps_cmd, sizeof(ps_cmd),
2029 "ps -o \"%%cpu,cputime\" --no-headers %d",
2032 pid_stat = popen(ps_cmd, "r");
2037 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2039 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2047 avio_printf(pb, "<p>");
2049 avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
2051 for (i = 0; i < stream->nb_streams; i++) {
2052 AVStream *st = stream->streams[i];
2053 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2054 const char *type = "unknown";
2055 char parameters[64];
2059 switch(st->codec->codec_type) {
2060 case AVMEDIA_TYPE_AUDIO:
2062 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2064 case AVMEDIA_TYPE_VIDEO:
2066 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2067 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2072 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2073 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2075 avio_printf(pb, "</table>\n");
2078 stream = stream->next;
2081 /* connection status */
2082 avio_printf(pb, "<h2>Connection Status</h2>\n");
2084 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2085 nb_connections, nb_max_connections);
2087 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2088 current_bandwidth, max_bandwidth);
2090 avio_printf(pb, "<table>\n");
2091 avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
2092 c1 = first_http_ctx;
2094 while (c1 != NULL) {
2100 for (j = 0; j < c1->stream->nb_streams; j++) {
2101 if (!c1->stream->feed)
2102 bitrate += c1->stream->streams[j]->codec->bit_rate;
2103 else if (c1->feed_streams[j] >= 0)
2104 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2109 p = inet_ntoa(c1->from_addr.sin_addr);
2110 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2112 c1->stream ? c1->stream->filename : "",
2113 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2116 http_state[c1->state]);
2117 fmt_bytecount(pb, bitrate);
2118 avio_printf(pb, "<td align=right>");
2119 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2120 avio_printf(pb, "<td align=right>");
2121 fmt_bytecount(pb, c1->data_count);
2122 avio_printf(pb, "\n");
2125 avio_printf(pb, "</table>\n");
2130 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2131 avio_printf(pb, "</body>\n</html>\n");
2133 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2134 c->buffer_ptr = c->pb_buffer;
2135 c->buffer_end = c->pb_buffer + len;
2138 static int open_input_stream(HTTPContext *c, const char *info)
2141 char input_filename[1024];
2142 AVFormatContext *s = NULL;
2143 int buf_size, i, ret;
2146 /* find file name */
2147 if (c->stream->feed) {
2148 strcpy(input_filename, c->stream->feed->feed_filename);
2149 buf_size = FFM_PACKET_SIZE;
2150 /* compute position (absolute time) */
2151 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2152 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2154 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2155 int prebuffer = strtol(buf, 0, 10);
2156 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2158 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2160 strcpy(input_filename, c->stream->feed_filename);
2162 /* compute position (relative time) */
2163 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2164 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2169 if (input_filename[0] == '\0')
2173 if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) {
2174 http_log("could not open %s: %d\n", input_filename, ret);
2178 /* set buffer size */
2179 if (buf_size > 0) ffio_set_buf_size(s->pb, buf_size);
2181 s->flags |= AVFMT_FLAG_GENPTS;
2183 if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) {
2184 http_log("Could not find stream info '%s'\n", input_filename);
2185 avformat_close_input(&s);
2189 /* choose stream as clock source (we favorize video stream if
2190 present) for packet sending */
2191 c->pts_stream_index = 0;
2192 for(i=0;i<c->stream->nb_streams;i++) {
2193 if (c->pts_stream_index == 0 &&
2194 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2195 c->pts_stream_index = i;
2199 if (c->fmt_in->iformat->read_seek)
2200 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2201 /* set the start time (needed for maxtime and RTP packet timing) */
2202 c->start_time = cur_time;
2203 c->first_pts = AV_NOPTS_VALUE;
2207 /* return the server clock (in us) */
2208 static int64_t get_server_clock(HTTPContext *c)
2210 /* compute current pts value from system time */
2211 return (cur_time - c->start_time) * 1000;
2214 /* return the estimated time at which the current packet must be sent
2216 static int64_t get_packet_send_clock(HTTPContext *c)
2218 int bytes_left, bytes_sent, frame_bytes;
2220 frame_bytes = c->cur_frame_bytes;
2221 if (frame_bytes <= 0)
2224 bytes_left = c->buffer_end - c->buffer_ptr;
2225 bytes_sent = frame_bytes - bytes_left;
2226 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2231 static int http_prepare_data(HTTPContext *c)
2234 AVFormatContext *ctx;
2236 av_freep(&c->pb_buffer);
2238 case HTTPSTATE_SEND_DATA_HEADER:
2239 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2240 av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2241 av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2242 av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2243 av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2245 c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
2247 for(i=0;i<c->stream->nb_streams;i++) {
2249 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2250 /* if file or feed, then just take streams from FFStream struct */
2251 if (!c->stream->feed ||
2252 c->stream->feed == c->stream)
2253 src = c->stream->streams[i];
2255 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2257 *(c->fmt_ctx.streams[i]) = *src;
2258 c->fmt_ctx.streams[i]->priv_data = 0;
2259 c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
2260 AVStream, not in codec */
2262 /* set output format parameters */
2263 c->fmt_ctx.oformat = c->stream->fmt;
2264 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2266 c->got_key_frame = 0;
2268 /* prepare header and save header data in a stream */
2269 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2270 /* XXX: potential leak */
2273 c->fmt_ctx.pb->seekable = 0;
2276 * HACK to avoid mpeg ps muxer to spit many underflow errors
2277 * Default value from FFmpeg
2278 * Try to set it use configuration option
2280 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2282 if (avformat_write_header(&c->fmt_ctx, NULL) < 0) {
2283 http_log("Error writing output header\n");
2286 av_dict_free(&c->fmt_ctx.metadata);
2288 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2289 c->buffer_ptr = c->pb_buffer;
2290 c->buffer_end = c->pb_buffer + len;
2292 c->state = HTTPSTATE_SEND_DATA;
2293 c->last_packet_sent = 0;
2295 case HTTPSTATE_SEND_DATA:
2296 /* find a new packet */
2297 /* read a packet from the input stream */
2298 if (c->stream->feed)
2299 ffm_set_write_index(c->fmt_in,
2300 c->stream->feed->feed_write_index,
2301 c->stream->feed->feed_size);
2303 if (c->stream->max_time &&
2304 c->stream->max_time + c->start_time - cur_time < 0)
2305 /* We have timed out */
2306 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2310 ret = av_read_frame(c->fmt_in, &pkt);
2312 if (c->stream->feed) {
2313 /* if coming from feed, it means we reached the end of the
2314 ffm file, so must wait for more data */
2315 c->state = HTTPSTATE_WAIT_FEED;
2316 return 1; /* state changed */
2317 } else if (ret == AVERROR(EAGAIN)) {
2318 /* input not ready, come back later */
2321 if (c->stream->loop) {
2322 avformat_close_input(&c->fmt_in);
2323 if (open_input_stream(c, "") < 0)
2328 /* must send trailer now because eof or error */
2329 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2333 int source_index = pkt.stream_index;
2334 /* update first pts if needed */
2335 if (c->first_pts == AV_NOPTS_VALUE) {
2336 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2337 c->start_time = cur_time;
2339 /* send it to the appropriate stream */
2340 if (c->stream->feed) {
2341 /* if coming from a feed, select the right stream */
2342 if (c->switch_pending) {
2343 c->switch_pending = 0;
2344 for(i=0;i<c->stream->nb_streams;i++) {
2345 if (c->switch_feed_streams[i] == pkt.stream_index)
2346 if (pkt.flags & AV_PKT_FLAG_KEY)
2347 c->switch_feed_streams[i] = -1;
2348 if (c->switch_feed_streams[i] >= 0)
2349 c->switch_pending = 1;
2352 for(i=0;i<c->stream->nb_streams;i++) {
2353 if (c->stream->feed_streams[i] == pkt.stream_index) {
2354 AVStream *st = c->fmt_in->streams[source_index];
2355 pkt.stream_index = i;
2356 if (pkt.flags & AV_PKT_FLAG_KEY &&
2357 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2358 c->stream->nb_streams == 1))
2359 c->got_key_frame = 1;
2360 if (!c->stream->send_on_key || c->got_key_frame)
2365 AVCodecContext *codec;
2366 AVStream *ist, *ost;
2368 ist = c->fmt_in->streams[source_index];
2369 /* specific handling for RTP: we use several
2370 output stream (one for each RTP
2371 connection). XXX: need more abstract handling */
2372 if (c->is_packetized) {
2373 /* compute send time and duration */
2374 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2375 c->cur_pts -= c->first_pts;
2376 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2377 /* find RTP context */
2378 c->packet_stream_index = pkt.stream_index;
2379 ctx = c->rtp_ctx[c->packet_stream_index];
2381 av_free_packet(&pkt);
2384 codec = ctx->streams[0]->codec;
2385 /* only one stream per RTP connection */
2386 pkt.stream_index = 0;
2390 codec = ctx->streams[pkt.stream_index]->codec;
2393 if (c->is_packetized) {
2394 int max_packet_size;
2395 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2396 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2398 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2399 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2401 ret = avio_open_dyn_buf(&ctx->pb);
2404 /* XXX: potential leak */
2407 ost = ctx->streams[pkt.stream_index];
2409 ctx->pb->seekable = 0;
2410 if (pkt.dts != AV_NOPTS_VALUE)
2411 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2412 if (pkt.pts != AV_NOPTS_VALUE)
2413 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2414 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2415 if (av_write_frame(ctx, &pkt) < 0) {
2416 http_log("Error writing frame to output\n");
2417 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2420 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2421 c->cur_frame_bytes = len;
2422 c->buffer_ptr = c->pb_buffer;
2423 c->buffer_end = c->pb_buffer + len;
2425 codec->frame_number++;
2427 av_free_packet(&pkt);
2431 av_free_packet(&pkt);
2436 case HTTPSTATE_SEND_DATA_TRAILER:
2437 /* last packet test ? */
2438 if (c->last_packet_sent || c->is_packetized)
2441 /* prepare header */
2442 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2443 /* XXX: potential leak */
2446 c->fmt_ctx.pb->seekable = 0;
2447 av_write_trailer(ctx);
2448 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2449 c->buffer_ptr = c->pb_buffer;
2450 c->buffer_end = c->pb_buffer + len;
2452 c->last_packet_sent = 1;
2458 /* should convert the format at the same time */
2459 /* send data starting at c->buffer_ptr to the output connection
2460 (either UDP or TCP connection) */
2461 static int http_send_data(HTTPContext *c)
2466 if (c->buffer_ptr >= c->buffer_end) {
2467 ret = http_prepare_data(c);
2471 /* state change requested */
2474 if (c->is_packetized) {
2475 /* RTP data output */
2476 len = c->buffer_end - c->buffer_ptr;
2478 /* fail safe - should never happen */
2480 c->buffer_ptr = c->buffer_end;
2483 len = (c->buffer_ptr[0] << 24) |
2484 (c->buffer_ptr[1] << 16) |
2485 (c->buffer_ptr[2] << 8) |
2487 if (len > (c->buffer_end - c->buffer_ptr))
2489 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2490 /* nothing to send yet: we can wait */
2494 c->data_count += len;
2495 update_datarate(&c->datarate, c->data_count);
2497 c->stream->bytes_served += len;
2499 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2500 /* RTP packets are sent inside the RTSP TCP connection */
2502 int interleaved_index, size;
2504 HTTPContext *rtsp_c;
2507 /* if no RTSP connection left, error */
2510 /* if already sending something, then wait. */
2511 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2513 if (avio_open_dyn_buf(&pb) < 0)
2515 interleaved_index = c->packet_stream_index * 2;
2516 /* RTCP packets are sent at odd indexes */
2517 if (c->buffer_ptr[1] == 200)
2518 interleaved_index++;
2519 /* write RTSP TCP header */
2521 header[1] = interleaved_index;
2522 header[2] = len >> 8;
2524 avio_write(pb, header, 4);
2525 /* write RTP packet data */
2527 avio_write(pb, c->buffer_ptr, len);
2528 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2529 /* prepare asynchronous TCP sending */
2530 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2531 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2532 c->buffer_ptr += len;
2534 /* send everything we can NOW */
2535 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2536 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2538 rtsp_c->packet_buffer_ptr += len;
2539 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2540 /* if we could not send all the data, we will
2541 send it later, so a new state is needed to
2542 "lock" the RTSP TCP connection */
2543 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2546 /* all data has been sent */
2547 av_freep(&c->packet_buffer);
2549 /* send RTP packet directly in UDP */
2551 ffurl_write(c->rtp_handles[c->packet_stream_index],
2552 c->buffer_ptr, len);
2553 c->buffer_ptr += len;
2554 /* here we continue as we can send several packets per 10 ms slot */
2557 /* TCP data output */
2558 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2560 if (ff_neterrno() != AVERROR(EAGAIN) &&
2561 ff_neterrno() != AVERROR(EINTR))
2562 /* error : close connection */
2567 c->buffer_ptr += len;
2569 c->data_count += len;
2570 update_datarate(&c->datarate, c->data_count);
2572 c->stream->bytes_served += len;
2580 static int http_start_receive_data(HTTPContext *c)
2584 if (c->stream->feed_opened)
2587 /* Don't permit writing to this one */
2588 if (c->stream->readonly)
2592 fd = open(c->stream->feed_filename, O_RDWR);
2594 http_log("Error opening feeder file: %s\n", strerror(errno));
2599 if (c->stream->truncate) {
2600 /* truncate feed file */
2601 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2602 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2603 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2604 http_log("Error truncating feed file: %s\n", strerror(errno));
2608 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2609 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2614 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2615 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2616 lseek(fd, 0, SEEK_SET);
2618 /* init buffer input */
2619 c->buffer_ptr = c->buffer;
2620 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2621 c->stream->feed_opened = 1;
2622 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2626 static int http_receive_data(HTTPContext *c)
2629 int len, loop_run = 0;
2631 while (c->chunked_encoding && !c->chunk_size &&
2632 c->buffer_end > c->buffer_ptr) {
2633 /* read chunk header, if present */
2634 len = recv(c->fd, c->buffer_ptr, 1, 0);
2637 if (ff_neterrno() != AVERROR(EAGAIN) &&
2638 ff_neterrno() != AVERROR(EINTR))
2639 /* error : close connection */
2642 } else if (len == 0) {
2643 /* end of connection : close it */
2645 } else if (c->buffer_ptr - c->buffer >= 2 &&
2646 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2647 c->chunk_size = strtol(c->buffer, 0, 16);
2648 if (c->chunk_size == 0) // end of stream
2650 c->buffer_ptr = c->buffer;
2652 } else if (++loop_run > 10) {
2653 /* no chunk header, abort */
2660 if (c->buffer_end > c->buffer_ptr) {
2661 len = recv(c->fd, c->buffer_ptr,
2662 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2664 if (ff_neterrno() != AVERROR(EAGAIN) &&
2665 ff_neterrno() != AVERROR(EINTR))
2666 /* error : close connection */
2668 } else if (len == 0)
2669 /* end of connection : close it */
2672 c->chunk_size -= len;
2673 c->buffer_ptr += len;
2674 c->data_count += len;
2675 update_datarate(&c->datarate, c->data_count);
2679 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2680 if (c->buffer[0] != 'f' ||
2681 c->buffer[1] != 'm') {
2682 http_log("Feed stream has become desynchronized -- disconnecting\n");
2687 if (c->buffer_ptr >= c->buffer_end) {
2688 FFStream *feed = c->stream;
2689 /* a packet has been received : write it in the store, except
2691 if (c->data_count > FFM_PACKET_SIZE) {
2692 /* XXX: use llseek or url_seek */
2693 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2694 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2695 http_log("Error writing to feed file: %s\n", strerror(errno));
2699 feed->feed_write_index += FFM_PACKET_SIZE;
2700 /* update file size */
2701 if (feed->feed_write_index > c->stream->feed_size)
2702 feed->feed_size = feed->feed_write_index;
2704 /* handle wrap around if max file size reached */
2705 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2706 feed->feed_write_index = FFM_PACKET_SIZE;
2709 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2710 http_log("Error writing index to feed file: %s\n", strerror(errno));
2714 /* wake up any waiting connections */
2715 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2716 if (c1->state == HTTPSTATE_WAIT_FEED &&
2717 c1->stream->feed == c->stream->feed)
2718 c1->state = HTTPSTATE_SEND_DATA;
2721 /* We have a header in our hands that contains useful data */
2722 AVFormatContext *s = avformat_alloc_context();
2724 AVInputFormat *fmt_in;
2730 /* use feed output format name to find corresponding input format */
2731 fmt_in = av_find_input_format(feed->fmt->name);
2735 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2736 0, NULL, NULL, NULL, NULL);
2740 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2745 /* Now we have the actual streams */
2746 if (s->nb_streams != feed->nb_streams) {
2747 avformat_close_input(&s);
2749 http_log("Feed '%s' stream number does not match registered feed\n",
2750 c->stream->feed_filename);
2754 for (i = 0; i < s->nb_streams; i++) {
2755 AVStream *fst = feed->streams[i];
2756 AVStream *st = s->streams[i];
2757 avcodec_copy_context(fst->codec, st->codec);
2760 avformat_close_input(&s);
2763 c->buffer_ptr = c->buffer;
2768 c->stream->feed_opened = 0;
2770 /* wake up any waiting connections to stop waiting for feed */
2771 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2772 if (c1->state == HTTPSTATE_WAIT_FEED &&
2773 c1->stream->feed == c->stream->feed)
2774 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2779 /********************************************************************/
2782 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2789 switch(error_number) {
2790 case RTSP_STATUS_OK:
2793 case RTSP_STATUS_METHOD:
2794 str = "Method Not Allowed";
2796 case RTSP_STATUS_BANDWIDTH:
2797 str = "Not Enough Bandwidth";
2799 case RTSP_STATUS_SESSION:
2800 str = "Session Not Found";
2802 case RTSP_STATUS_STATE:
2803 str = "Method Not Valid in This State";
2805 case RTSP_STATUS_AGGREGATE:
2806 str = "Aggregate operation not allowed";
2808 case RTSP_STATUS_ONLY_AGGREGATE:
2809 str = "Only aggregate operation allowed";
2811 case RTSP_STATUS_TRANSPORT:
2812 str = "Unsupported transport";
2814 case RTSP_STATUS_INTERNAL:
2815 str = "Internal Server Error";
2817 case RTSP_STATUS_SERVICE:
2818 str = "Service Unavailable";
2820 case RTSP_STATUS_VERSION:
2821 str = "RTSP Version not supported";
2824 str = "Unknown Error";
2828 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2829 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2831 /* output GMT time */
2834 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2835 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2838 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2840 rtsp_reply_header(c, error_number);
2841 avio_printf(c->pb, "\r\n");
2844 static int rtsp_parse_request(HTTPContext *c)
2846 const char *p, *p1, *p2;
2852 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2854 c->buffer_ptr[0] = '\0';
2857 get_word(cmd, sizeof(cmd), &p);
2858 get_word(url, sizeof(url), &p);
2859 get_word(protocol, sizeof(protocol), &p);
2861 av_strlcpy(c->method, cmd, sizeof(c->method));
2862 av_strlcpy(c->url, url, sizeof(c->url));
2863 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2865 if (avio_open_dyn_buf(&c->pb) < 0) {
2866 /* XXX: cannot do more */
2867 c->pb = NULL; /* safety */
2871 /* check version name */
2872 if (strcmp(protocol, "RTSP/1.0") != 0) {
2873 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2877 /* parse each header line */
2878 /* skip to next line */
2879 while (*p != '\n' && *p != '\0')
2883 while (*p != '\0') {
2884 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2888 if (p2 > p && p2[-1] == '\r')
2890 /* skip empty line */
2894 if (len > sizeof(line) - 1)
2895 len = sizeof(line) - 1;
2896 memcpy(line, p, len);
2898 ff_rtsp_parse_line(header, line, NULL, NULL);
2902 /* handle sequence number */
2903 c->seq = header->seq;
2905 if (!strcmp(cmd, "DESCRIBE"))
2906 rtsp_cmd_describe(c, url);
2907 else if (!strcmp(cmd, "OPTIONS"))
2908 rtsp_cmd_options(c, url);
2909 else if (!strcmp(cmd, "SETUP"))
2910 rtsp_cmd_setup(c, url, header);
2911 else if (!strcmp(cmd, "PLAY"))
2912 rtsp_cmd_play(c, url, header);
2913 else if (!strcmp(cmd, "PAUSE"))
2914 rtsp_cmd_pause(c, url, header);
2915 else if (!strcmp(cmd, "TEARDOWN"))
2916 rtsp_cmd_teardown(c, url, header);
2918 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2921 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2922 c->pb = NULL; /* safety */
2924 /* XXX: cannot do more */
2927 c->buffer_ptr = c->pb_buffer;
2928 c->buffer_end = c->pb_buffer + len;
2929 c->state = RTSPSTATE_SEND_REPLY;
2933 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2934 struct in_addr my_ip)
2936 AVFormatContext *avc;
2937 AVStream *avs = NULL;
2940 avc = avformat_alloc_context();
2944 av_dict_set(&avc->metadata, "title",
2945 stream->title[0] ? stream->title : "No Title", 0);
2946 avc->nb_streams = stream->nb_streams;
2947 if (stream->is_multicast) {
2948 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2949 inet_ntoa(stream->multicast_ip),
2950 stream->multicast_port, stream->multicast_ttl);
2952 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2955 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2956 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2958 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2959 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2962 for(i = 0; i < stream->nb_streams; i++) {
2963 avc->streams[i] = &avs[i];
2964 avc->streams[i]->codec = stream->streams[i]->codec;
2966 *pbuffer = av_mallocz(2048);
2967 av_sdp_create(&avc, 1, *pbuffer, 2048);
2970 av_free(avc->streams);
2971 av_dict_free(&avc->metadata);
2975 return strlen(*pbuffer);
2978 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2980 // rtsp_reply_header(c, RTSP_STATUS_OK);
2981 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2982 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2983 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2984 avio_printf(c->pb, "\r\n");
2987 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2993 int content_length, len;
2994 struct sockaddr_in my_addr;
2996 /* find which url is asked */
2997 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3002 for(stream = first_stream; stream != NULL; stream = stream->next) {
3003 if (!stream->is_feed &&
3004 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
3005 !strcmp(path, stream->filename)) {
3009 /* no stream found */
3010 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3014 /* prepare the media description in sdp format */
3016 /* get the host IP */
3017 len = sizeof(my_addr);
3018 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3019 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3020 if (content_length < 0) {
3021 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3024 rtsp_reply_header(c, RTSP_STATUS_OK);
3025 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3026 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3027 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3028 avio_printf(c->pb, "\r\n");
3029 avio_write(c->pb, content, content_length);
3033 static HTTPContext *find_rtp_session(const char *session_id)
3037 if (session_id[0] == '\0')
3040 for(c = first_http_ctx; c != NULL; c = c->next) {
3041 if (!strcmp(c->session_id, session_id))
3047 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3049 RTSPTransportField *th;
3052 for(i=0;i<h->nb_transports;i++) {
3053 th = &h->transports[i];
3054 if (th->lower_transport == lower_transport)
3060 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3061 RTSPMessageHeader *h)
3064 int stream_index, rtp_port, rtcp_port;
3069 RTSPTransportField *th;
3070 struct sockaddr_in dest_addr;
3071 RTSPActionServerSetup setup;
3073 /* find which url is asked */
3074 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3079 /* now check each stream */
3080 for(stream = first_stream; stream != NULL; stream = stream->next) {
3081 if (!stream->is_feed &&
3082 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3083 /* accept aggregate filenames only if single stream */
3084 if (!strcmp(path, stream->filename)) {
3085 if (stream->nb_streams != 1) {
3086 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3093 for(stream_index = 0; stream_index < stream->nb_streams;
3095 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3096 stream->filename, stream_index);
3097 if (!strcmp(path, buf))
3102 /* no stream found */
3103 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3107 /* generate session id if needed */
3108 if (h->session_id[0] == '\0') {
3109 unsigned random0 = av_lfg_get(&random_state);
3110 unsigned random1 = av_lfg_get(&random_state);
3111 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3115 /* find rtp session, and create it if none found */
3116 rtp_c = find_rtp_session(h->session_id);
3118 /* always prefer UDP */
3119 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3121 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3123 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3128 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3129 th->lower_transport);
3131 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3135 /* open input stream */
3136 if (open_input_stream(rtp_c, "") < 0) {
3137 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3142 /* test if stream is OK (test needed because several SETUP needs
3143 to be done for a given file) */
3144 if (rtp_c->stream != stream) {
3145 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3149 /* test if stream is already set up */
3150 if (rtp_c->rtp_ctx[stream_index]) {
3151 rtsp_reply_error(c, RTSP_STATUS_STATE);
3155 /* check transport */
3156 th = find_transport(h, rtp_c->rtp_protocol);
3157 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3158 th->client_port_min <= 0)) {
3159 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3163 /* setup default options */
3164 setup.transport_option[0] = '\0';
3165 dest_addr = rtp_c->from_addr;
3166 dest_addr.sin_port = htons(th->client_port_min);
3169 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3170 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3174 /* now everything is OK, so we can send the connection parameters */
3175 rtsp_reply_header(c, RTSP_STATUS_OK);
3177 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3179 switch(rtp_c->rtp_protocol) {
3180 case RTSP_LOWER_TRANSPORT_UDP:
3181 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3182 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3183 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3184 "client_port=%d-%d;server_port=%d-%d",
3185 th->client_port_min, th->client_port_max,
3186 rtp_port, rtcp_port);
3188 case RTSP_LOWER_TRANSPORT_TCP:
3189 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3190 stream_index * 2, stream_index * 2 + 1);
3195 if (setup.transport_option[0] != '\0')
3196 avio_printf(c->pb, ";%s", setup.transport_option);
3197 avio_printf(c->pb, "\r\n");
3200 avio_printf(c->pb, "\r\n");
3204 /* find an rtp connection by using the session ID. Check consistency
3206 static HTTPContext *find_rtp_session_with_url(const char *url,
3207 const char *session_id)
3215 rtp_c = find_rtp_session(session_id);
3219 /* find which url is asked */
3220 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3224 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3225 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3226 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3227 rtp_c->stream->filename, s);
3228 if(!strncmp(path, buf, sizeof(buf))) {
3229 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3234 if (len > 0 && path[len - 1] == '/' &&
3235 !strncmp(path, rtp_c->stream->filename, len - 1))
3240 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3244 rtp_c = find_rtp_session_with_url(url, h->session_id);
3246 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3250 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3251 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3252 rtp_c->state != HTTPSTATE_READY) {
3253 rtsp_reply_error(c, RTSP_STATUS_STATE);
3257 rtp_c->state = HTTPSTATE_SEND_DATA;
3259 /* now everything is OK, so we can send the connection parameters */
3260 rtsp_reply_header(c, RTSP_STATUS_OK);
3262 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3263 avio_printf(c->pb, "\r\n");
3266 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3270 rtp_c = find_rtp_session_with_url(url, h->session_id);
3272 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3276 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3277 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3278 rtsp_reply_error(c, RTSP_STATUS_STATE);
3282 rtp_c->state = HTTPSTATE_READY;
3283 rtp_c->first_pts = AV_NOPTS_VALUE;
3284 /* now everything is OK, so we can send the connection parameters */
3285 rtsp_reply_header(c, RTSP_STATUS_OK);
3287 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3288 avio_printf(c->pb, "\r\n");
3291 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3295 rtp_c = find_rtp_session_with_url(url, h->session_id);
3297 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3301 /* now everything is OK, so we can send the connection parameters */
3302 rtsp_reply_header(c, RTSP_STATUS_OK);
3304 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3305 avio_printf(c->pb, "\r\n");
3307 /* abort the session */
3308 close_connection(rtp_c);
3312 /********************************************************************/
3315 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3316 FFStream *stream, const char *session_id,
3317 enum RTSPLowerTransport rtp_protocol)
3319 HTTPContext *c = NULL;
3320 const char *proto_str;
3322 /* XXX: should output a warning page when coming
3323 close to the connection limit */
3324 if (nb_connections >= nb_max_connections)
3327 /* add a new connection */
3328 c = av_mallocz(sizeof(HTTPContext));
3333 c->poll_entry = NULL;
3334 c->from_addr = *from_addr;
3335 c->buffer_size = IOBUFFER_INIT_SIZE;
3336 c->buffer = av_malloc(c->buffer_size);
3341 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3342 c->state = HTTPSTATE_READY;
3343 c->is_packetized = 1;
3344 c->rtp_protocol = rtp_protocol;
3346 /* protocol is shown in statistics */
3347 switch(c->rtp_protocol) {
3348 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3349 proto_str = "MCAST";
3351 case RTSP_LOWER_TRANSPORT_UDP:
3354 case RTSP_LOWER_TRANSPORT_TCP:
3361 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3362 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3364 current_bandwidth += stream->bandwidth;
3366 c->next = first_http_ctx;
3378 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3379 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3381 static int rtp_new_av_stream(HTTPContext *c,
3382 int stream_index, struct sockaddr_in *dest_addr,
3383 HTTPContext *rtsp_c)
3385 AVFormatContext *ctx;
3388 URLContext *h = NULL;
3390 int max_packet_size;
3392 /* now we can open the relevant output stream */
3393 ctx = avformat_alloc_context();
3396 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3398 st = av_mallocz(sizeof(AVStream));
3401 ctx->nb_streams = 1;
3402 ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams);
3405 ctx->streams[0] = st;
3407 if (!c->stream->feed ||
3408 c->stream->feed == c->stream)
3409 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3412 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3414 st->priv_data = NULL;
3416 /* build destination RTP address */
3417 ipaddr = inet_ntoa(dest_addr->sin_addr);
3419 switch(c->rtp_protocol) {
3420 case RTSP_LOWER_TRANSPORT_UDP:
3421 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3424 /* XXX: also pass as parameter to function ? */
3425 if (c->stream->is_multicast) {
3427 ttl = c->stream->multicast_ttl;
3430 snprintf(ctx->filename, sizeof(ctx->filename),
3431 "rtp://%s:%d?multicast=1&ttl=%d",
3432 ipaddr, ntohs(dest_addr->sin_port), ttl);
3434 snprintf(ctx->filename, sizeof(ctx->filename),
3435 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3438 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3440 c->rtp_handles[stream_index] = h;
3441 max_packet_size = h->max_packet_size;
3443 case RTSP_LOWER_TRANSPORT_TCP:
3446 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3452 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3453 ipaddr, ntohs(dest_addr->sin_port),
3454 c->stream->filename, stream_index, c->protocol);
3456 /* normally, no packets should be output here, but the packet size may be checked */
3457 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3458 /* XXX: close stream */
3461 if (avformat_write_header(ctx, NULL) < 0) {
3468 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3471 c->rtp_ctx[stream_index] = ctx;
3475 /********************************************************************/
3476 /* ffserver initialization */
3478 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3482 fst = av_mallocz(sizeof(AVStream));
3486 fst->codec = avcodec_alloc_context3(NULL);
3487 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3488 if (codec->extradata_size) {
3489 fst->codec->extradata = av_malloc(codec->extradata_size);
3490 memcpy(fst->codec->extradata, codec->extradata,
3491 codec->extradata_size);
3494 /* live streams must use the actual feed's codec since it may be
3495 * updated later to carry extradata needed by the streams.
3499 fst->priv_data = av_mallocz(sizeof(FeedData));
3500 fst->index = stream->nb_streams;
3501 avpriv_set_pts_info(fst, 33, 1, 90000);
3502 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3503 stream->streams[stream->nb_streams++] = fst;
3507 /* return the stream number in the feed */
3508 static int add_av_stream(FFStream *feed, AVStream *st)
3511 AVCodecContext *av, *av1;
3515 for(i=0;i<feed->nb_streams;i++) {
3516 st = feed->streams[i];
3518 if (av1->codec_id == av->codec_id &&
3519 av1->codec_type == av->codec_type &&
3520 av1->bit_rate == av->bit_rate) {
3522 switch(av->codec_type) {
3523 case AVMEDIA_TYPE_AUDIO:
3524 if (av1->channels == av->channels &&
3525 av1->sample_rate == av->sample_rate)
3528 case AVMEDIA_TYPE_VIDEO:
3529 if (av1->width == av->width &&
3530 av1->height == av->height &&
3531 av1->time_base.den == av->time_base.den &&
3532 av1->time_base.num == av->time_base.num &&
3533 av1->gop_size == av->gop_size)
3542 fst = add_av_stream1(feed, av, 0);
3545 return feed->nb_streams - 1;
3548 static void remove_stream(FFStream *stream)
3552 while (*ps != NULL) {
3560 /* specific mpeg4 handling : we extract the raw parameters */
3561 static void extract_mpeg4_header(AVFormatContext *infile)
3563 int mpeg4_count, i, size;
3569 for(i=0;i<infile->nb_streams;i++) {
3570 st = infile->streams[i];
3571 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3572 st->codec->extradata_size == 0) {
3579 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3580 while (mpeg4_count > 0) {
3581 if (av_read_packet(infile, &pkt) < 0)
3583 st = infile->streams[pkt.stream_index];
3584 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3585 st->codec->extradata_size == 0) {
3586 av_freep(&st->codec->extradata);
3587 /* fill extradata with the header */
3588 /* XXX: we make hard suppositions here ! */
3590 while (p < pkt.data + pkt.size - 4) {
3591 /* stop when vop header is found */
3592 if (p[0] == 0x00 && p[1] == 0x00 &&
3593 p[2] == 0x01 && p[3] == 0xb6) {
3594 size = p - pkt.data;
3595 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3596 st->codec->extradata = av_malloc(size);
3597 st->codec->extradata_size = size;
3598 memcpy(st->codec->extradata, pkt.data, size);
3605 av_free_packet(&pkt);
3609 /* compute the needed AVStream for each file */
3610 static void build_file_streams(void)
3612 FFStream *stream, *stream_next;
3615 /* gather all streams */
3616 for(stream = first_stream; stream != NULL; stream = stream_next) {
3617 AVFormatContext *infile = NULL;
3618 stream_next = stream->next;
3619 if (stream->stream_type == STREAM_TYPE_LIVE &&
3621 /* the stream comes from a file */
3622 /* try to open the file */
3624 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3625 /* specific case : if transport stream output to RTP,
3626 we use a raw transport stream reader */
3627 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3630 http_log("Opening file '%s'\n", stream->feed_filename);
3631 if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) {
3632 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3633 /* remove stream (no need to spend more time on it) */
3635 remove_stream(stream);
3637 /* find all the AVStreams inside and reference them in
3639 if (avformat_find_stream_info(infile, NULL) < 0) {
3640 http_log("Could not find codec parameters from '%s'\n",
3641 stream->feed_filename);
3642 avformat_close_input(&infile);
3645 extract_mpeg4_header(infile);
3647 for(i=0;i<infile->nb_streams;i++)
3648 add_av_stream1(stream, infile->streams[i]->codec, 1);
3650 avformat_close_input(&infile);
3656 /* compute the needed AVStream for each feed */
3657 static void build_feed_streams(void)
3659 FFStream *stream, *feed;
3662 /* gather all streams */
3663 for(stream = first_stream; stream != NULL; stream = stream->next) {
3664 feed = stream->feed;
3666 if (stream->is_feed) {
3667 for(i=0;i<stream->nb_streams;i++)
3668 stream->feed_streams[i] = i;
3670 /* we handle a stream coming from a feed */
3671 for(i=0;i<stream->nb_streams;i++)
3672 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3677 /* create feed files if needed */
3678 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3681 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3682 /* See if it matches */
3683 AVFormatContext *s = NULL;
3686 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {
3687 /* set buffer size */
3688 ffio_set_buf_size(s->pb, FFM_PACKET_SIZE);
3689 /* Now see if it matches */
3690 if (s->nb_streams == feed->nb_streams) {
3692 for(i=0;i<s->nb_streams;i++) {
3694 sf = feed->streams[i];
3697 if (sf->index != ss->index ||
3699 http_log("Index & Id do not match for stream %d (%s)\n",
3700 i, feed->feed_filename);
3703 AVCodecContext *ccf, *ccs;
3707 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3709 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3710 http_log("Codecs do not match for stream %d\n", i);
3712 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3713 http_log("Codec bitrates do not match for stream %d\n", i);
3715 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3716 if (CHECK_CODEC(time_base.den) ||
3717 CHECK_CODEC(time_base.num) ||
3718 CHECK_CODEC(width) ||
3719 CHECK_CODEC(height)) {
3720 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3723 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3724 if (CHECK_CODEC(sample_rate) ||
3725 CHECK_CODEC(channels) ||
3726 CHECK_CODEC(frame_size)) {
3727 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3731 http_log("Unknown codec type\n");
3739 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3740 feed->feed_filename, s->nb_streams, feed->nb_streams);
3742 avformat_close_input(&s);
3744 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3745 feed->feed_filename);
3748 if (feed->readonly) {
3749 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3750 feed->feed_filename);
3753 unlink(feed->feed_filename);
3756 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3757 AVFormatContext s1 = {0}, *s = &s1;
3759 if (feed->readonly) {
3760 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3761 feed->feed_filename);
3765 /* only write the header of the ffm file */
3766 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3767 http_log("Could not open output feed file '%s'\n",
3768 feed->feed_filename);
3771 s->oformat = feed->fmt;
3772 s->nb_streams = feed->nb_streams;
3773 s->streams = feed->streams;
3774 if (avformat_write_header(s, NULL) < 0) {
3775 http_log("Container doesn't support the required parameters\n");
3778 /* XXX: need better api */
3779 av_freep(&s->priv_data);
3782 /* get feed size and write index */
3783 fd = open(feed->feed_filename, O_RDONLY);
3785 http_log("Could not open output feed file '%s'\n",
3786 feed->feed_filename);
3790 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3791 feed->feed_size = lseek(fd, 0, SEEK_END);
3792 /* ensure that we do not wrap before the end of file */
3793 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3794 feed->feed_max_size = feed->feed_size;
3800 /* compute the bandwidth used by each stream */
3801 static void compute_bandwidth(void)
3807 for(stream = first_stream; stream != NULL; stream = stream->next) {
3809 for(i=0;i<stream->nb_streams;i++) {
3810 AVStream *st = stream->streams[i];
3811 switch(st->codec->codec_type) {
3812 case AVMEDIA_TYPE_AUDIO:
3813 case AVMEDIA_TYPE_VIDEO:
3814 bandwidth += st->codec->bit_rate;
3820 stream->bandwidth = (bandwidth + 999) / 1000;
3824 /* add a codec and set the default parameters */
3825 static void add_codec(FFStream *stream, AVCodecContext *av)
3829 /* compute default parameters */
3830 switch(av->codec_type) {
3831 case AVMEDIA_TYPE_AUDIO:
3832 if (av->bit_rate == 0)
3833 av->bit_rate = 64000;
3834 if (av->sample_rate == 0)
3835 av->sample_rate = 22050;
3836 if (av->channels == 0)
3839 case AVMEDIA_TYPE_VIDEO:
3840 if (av->bit_rate == 0)
3841 av->bit_rate = 64000;
3842 if (av->time_base.num == 0){
3843 av->time_base.den = 5;
3844 av->time_base.num = 1;
3846 if (av->width == 0 || av->height == 0) {
3850 /* Bitrate tolerance is less for streaming */
3851 if (av->bit_rate_tolerance == 0)
3852 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3853 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3858 if (av->max_qdiff == 0)
3860 av->qcompress = 0.5;
3863 if (!av->nsse_weight)
3864 av->nsse_weight = 8;
3866 av->frame_skip_cmp = FF_CMP_DCTMAX;
3868 av->me_method = ME_EPZS;
3869 av->rc_buffer_aggressivity = 1.0;
3872 av->rc_eq = "tex^qComp";
3873 if (!av->i_quant_factor)
3874 av->i_quant_factor = -0.8;
3875 if (!av->b_quant_factor)
3876 av->b_quant_factor = 1.25;
3877 if (!av->b_quant_offset)
3878 av->b_quant_offset = 1.25;
3879 if (!av->rc_max_rate)
3880 av->rc_max_rate = av->bit_rate * 2;
3882 if (av->rc_max_rate && !av->rc_buffer_size) {
3883 av->rc_buffer_size = av->rc_max_rate;
3892 st = av_mallocz(sizeof(AVStream));
3895 st->codec = avcodec_alloc_context3(NULL);
3896 stream->streams[stream->nb_streams++] = st;
3897 memcpy(st->codec, av, sizeof(AVCodecContext));
3900 static enum AVCodecID opt_audio_codec(const char *arg)
3902 AVCodec *p= avcodec_find_encoder_by_name(arg);
3904 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3905 return AV_CODEC_ID_NONE;
3910 static enum AVCodecID opt_video_codec(const char *arg)
3912 AVCodec *p= avcodec_find_encoder_by_name(arg);
3914 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3915 return AV_CODEC_ID_NONE;
3920 /* simplistic plugin support */
3923 static void load_module(const char *filename)
3926 void (*init_func)(void);
3927 dll = dlopen(filename, RTLD_NOW);
3929 fprintf(stderr, "Could not load module '%s' - %s\n",
3930 filename, dlerror());
3934 init_func = dlsym(dll, "ffserver_module_init");
3937 "%s: init function 'ffserver_module_init()' not found\n",
3946 static int ffserver_opt_default(const char *opt, const char *arg,
3947 AVCodecContext *avctx, int type)
3950 const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);
3952 ret = av_opt_set(avctx, opt, arg, 0);
3956 static int ffserver_opt_preset(const char *arg,
3957 AVCodecContext *avctx, int type,
3958 enum AVCodecID *audio_id, enum AVCodecID *video_id)
3961 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3963 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3965 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3966 codec ? codec->name : NULL))) {
3967 fprintf(stderr, "File for preset '%s' not found\n", arg);
3972 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3973 if(line[0] == '#' && !e)
3975 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3977 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
3981 if(!strcmp(tmp, "acodec")){
3982 *audio_id = opt_audio_codec(tmp2);
3983 }else if(!strcmp(tmp, "vcodec")){
3984 *video_id = opt_video_codec(tmp2);
3985 }else if(!strcmp(tmp, "scodec")){
3986 /* opt_subtitle_codec(tmp2); */
3987 }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){
3988 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
3999 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
4000 const char *mime_type)
4002 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
4005 AVOutputFormat *stream_fmt;
4006 char stream_format_name[64];
4008 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
4009 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
4018 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
4022 fprintf(stderr, "%s:%d: ", filename, line_num);
4023 vfprintf(stderr, fmt, vl);
4029 static int parse_ffconfig(const char *filename)
4036 int val, errors, line_num;
4037 FFStream **last_stream, *stream, *redirect;
4038 FFStream **last_feed, *feed, *s;
4039 AVCodecContext audio_enc, video_enc;
4040 enum AVCodecID audio_id, video_id;
4042 f = fopen(filename, "r");
4050 first_stream = NULL;
4051 last_stream = &first_stream;
4053 last_feed = &first_feed;
4057 audio_id = AV_CODEC_ID_NONE;
4058 video_id = AV_CODEC_ID_NONE;
4060 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4062 if (fgets(line, sizeof(line), f) == NULL)
4068 if (*p == '\0' || *p == '#')
4071 get_arg(cmd, sizeof(cmd), &p);
4073 if (!av_strcasecmp(cmd, "Port")) {
4074 get_arg(arg, sizeof(arg), &p);
4076 if (val < 1 || val > 65536) {
4077 ERROR("Invalid_port: %s\n", arg);
4079 my_http_addr.sin_port = htons(val);
4080 } else if (!av_strcasecmp(cmd, "BindAddress")) {
4081 get_arg(arg, sizeof(arg), &p);
4082 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4083 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4085 } else if (!av_strcasecmp(cmd, "NoDaemon")) {
4086 ffserver_daemon = 0;
4087 } else if (!av_strcasecmp(cmd, "RTSPPort")) {
4088 get_arg(arg, sizeof(arg), &p);
4090 if (val < 1 || val > 65536) {
4091 ERROR("%s:%d: Invalid port: %s\n", arg);
4093 my_rtsp_addr.sin_port = htons(atoi(arg));
4094 } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
4095 get_arg(arg, sizeof(arg), &p);
4096 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4097 ERROR("Invalid host/IP address: %s\n", arg);
4099 } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
4100 get_arg(arg, sizeof(arg), &p);
4102 if (val < 1 || val > 65536) {
4103 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4105 nb_max_http_connections = val;
4106 } else if (!av_strcasecmp(cmd, "MaxClients")) {
4107 get_arg(arg, sizeof(arg), &p);
4109 if (val < 1 || val > nb_max_http_connections) {
4110 ERROR("Invalid MaxClients: %s\n", arg);
4112 nb_max_connections = val;
4114 } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
4116 get_arg(arg, sizeof(arg), &p);
4118 if (llval < 10 || llval > 10000000) {
4119 ERROR("Invalid MaxBandwidth: %s\n", arg);
4121 max_bandwidth = llval;
4122 } else if (!av_strcasecmp(cmd, "CustomLog")) {
4123 if (!ffserver_debug)
4124 get_arg(logfilename, sizeof(logfilename), &p);
4125 } else if (!av_strcasecmp(cmd, "<Feed")) {
4126 /*********************************************/
4127 /* Feed related options */
4129 if (stream || feed) {
4130 ERROR("Already in a tag\n");
4132 feed = av_mallocz(sizeof(FFStream));
4133 get_arg(feed->filename, sizeof(feed->filename), &p);
4134 q = strrchr(feed->filename, '>');
4138 for (s = first_feed; s; s = s->next) {
4139 if (!strcmp(feed->filename, s->filename)) {
4140 ERROR("Feed '%s' already registered\n", s->filename);
4144 feed->fmt = av_guess_format("ffm", NULL, NULL);
4145 /* defaut feed file */
4146 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4147 "/tmp/%s.ffm", feed->filename);
4148 feed->feed_max_size = 5 * 1024 * 1024;
4150 feed->feed = feed; /* self feeding :-) */
4152 /* add in stream list */
4153 *last_stream = feed;
4154 last_stream = &feed->next;
4155 /* add in feed list */
4157 last_feed = &feed->next_feed;
4159 } else if (!av_strcasecmp(cmd, "Launch")) {
4163 feed->child_argv = av_mallocz(64 * sizeof(char *));
4165 for (i = 0; i < 62; i++) {
4166 get_arg(arg, sizeof(arg), &p);
4170 feed->child_argv[i] = av_strdup(arg);
4173 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4175 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4177 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4178 inet_ntoa(my_http_addr.sin_addr),
4179 ntohs(my_http_addr.sin_port), feed->filename);
4181 } else if (!av_strcasecmp(cmd, "ReadOnlyFile")) {
4183 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4185 } else if (stream) {
4186 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4188 } else if (!av_strcasecmp(cmd, "File")) {
4190 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4192 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4193 } else if (!av_strcasecmp(cmd, "Truncate")) {
4195 get_arg(arg, sizeof(arg), &p);
4196 feed->truncate = strtod(arg, NULL);
4198 } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
4203 get_arg(arg, sizeof(arg), &p);
4205 fsize = strtod(p1, &p1);
4206 switch(toupper(*p1)) {
4211 fsize *= 1024 * 1024;
4214 fsize *= 1024 * 1024 * 1024;
4217 feed->feed_max_size = (int64_t)fsize;
4218 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4219 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4222 } else if (!av_strcasecmp(cmd, "</Feed>")) {
4224 ERROR("No corresponding <Feed> for </Feed>\n");
4227 } else if (!av_strcasecmp(cmd, "<Stream")) {
4228 /*********************************************/
4229 /* Stream related options */
4231 if (stream || feed) {
4232 ERROR("Already in a tag\n");
4235 stream = av_mallocz(sizeof(FFStream));
4236 get_arg(stream->filename, sizeof(stream->filename), &p);
4237 q = strrchr(stream->filename, '>');
4241 for (s = first_stream; s; s = s->next) {
4242 if (!strcmp(stream->filename, s->filename)) {
4243 ERROR("Stream '%s' already registered\n", s->filename);
4247 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4248 avcodec_get_context_defaults3(&video_enc, NULL);
4249 avcodec_get_context_defaults3(&audio_enc, NULL);
4251 audio_id = AV_CODEC_ID_NONE;
4252 video_id = AV_CODEC_ID_NONE;
4254 audio_id = stream->fmt->audio_codec;
4255 video_id = stream->fmt->video_codec;
4258 *last_stream = stream;
4259 last_stream = &stream->next;
4261 } else if (!av_strcasecmp(cmd, "Feed")) {
4262 get_arg(arg, sizeof(arg), &p);
4267 while (sfeed != NULL) {
4268 if (!strcmp(sfeed->filename, arg))
4270 sfeed = sfeed->next_feed;
4273 ERROR("feed '%s' not defined\n", arg);
4275 stream->feed = sfeed;
4277 } else if (!av_strcasecmp(cmd, "Format")) {
4278 get_arg(arg, sizeof(arg), &p);
4280 if (!strcmp(arg, "status")) {
4281 stream->stream_type = STREAM_TYPE_STATUS;
4284 stream->stream_type = STREAM_TYPE_LIVE;
4285 /* jpeg cannot be used here, so use single frame jpeg */
4286 if (!strcmp(arg, "jpeg"))
4287 strcpy(arg, "mjpeg");
4288 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4290 ERROR("Unknown Format: %s\n", arg);
4294 audio_id = stream->fmt->audio_codec;
4295 video_id = stream->fmt->video_codec;
4298 } else if (!av_strcasecmp(cmd, "InputFormat")) {
4299 get_arg(arg, sizeof(arg), &p);
4301 stream->ifmt = av_find_input_format(arg);
4302 if (!stream->ifmt) {
4303 ERROR("Unknown input format: %s\n", arg);
4306 } else if (!av_strcasecmp(cmd, "FaviconURL")) {
4307 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4308 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4310 ERROR("FaviconURL only permitted for status streams\n");
4312 } else if (!av_strcasecmp(cmd, "Author")) {
4314 get_arg(stream->author, sizeof(stream->author), &p);
4315 } else if (!av_strcasecmp(cmd, "Comment")) {
4317 get_arg(stream->comment, sizeof(stream->comment), &p);
4318 } else if (!av_strcasecmp(cmd, "Copyright")) {
4320 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4321 } else if (!av_strcasecmp(cmd, "Title")) {
4323 get_arg(stream->title, sizeof(stream->title), &p);
4324 } else if (!av_strcasecmp(cmd, "Preroll")) {
4325 get_arg(arg, sizeof(arg), &p);
4327 stream->prebuffer = atof(arg) * 1000;
4328 } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
4330 stream->send_on_key = 1;
4331 } else if (!av_strcasecmp(cmd, "AudioCodec")) {
4332 get_arg(arg, sizeof(arg), &p);
4333 audio_id = opt_audio_codec(arg);
4334 if (audio_id == AV_CODEC_ID_NONE) {
4335 ERROR("Unknown AudioCodec: %s\n", arg);
4337 } else if (!av_strcasecmp(cmd, "VideoCodec")) {
4338 get_arg(arg, sizeof(arg), &p);
4339 video_id = opt_video_codec(arg);
4340 if (video_id == AV_CODEC_ID_NONE) {
4341 ERROR("Unknown VideoCodec: %s\n", arg);
4343 } else if (!av_strcasecmp(cmd, "MaxTime")) {
4344 get_arg(arg, sizeof(arg), &p);
4346 stream->max_time = atof(arg) * 1000;
4347 } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
4348 get_arg(arg, sizeof(arg), &p);
4350 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4351 } else if (!av_strcasecmp(cmd, "AudioChannels")) {
4352 get_arg(arg, sizeof(arg), &p);
4354 audio_enc.channels = atoi(arg);
4355 } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
4356 get_arg(arg, sizeof(arg), &p);
4358 audio_enc.sample_rate = atoi(arg);
4359 } else if (!av_strcasecmp(cmd, "AudioQuality")) {
4360 get_arg(arg, sizeof(arg), &p);
4362 // audio_enc.quality = atof(arg) * 1000;
4364 } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
4366 int minrate, maxrate;
4368 get_arg(arg, sizeof(arg), &p);
4370 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4371 video_enc.rc_min_rate = minrate * 1000;
4372 video_enc.rc_max_rate = maxrate * 1000;
4374 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4377 } else if (!av_strcasecmp(cmd, "Debug")) {
4379 get_arg(arg, sizeof(arg), &p);
4380 video_enc.debug = strtol(arg,0,0);
4382 } else if (!av_strcasecmp(cmd, "Strict")) {
4384 get_arg(arg, sizeof(arg), &p);
4385 video_enc.strict_std_compliance = atoi(arg);
4387 } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
4389 get_arg(arg, sizeof(arg), &p);
4390 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4392 } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
4394 get_arg(arg, sizeof(arg), &p);
4395 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4397 } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
4398 get_arg(arg, sizeof(arg), &p);
4400 video_enc.bit_rate = atoi(arg) * 1000;
4402 } else if (!av_strcasecmp(cmd, "VideoSize")) {
4403 get_arg(arg, sizeof(arg), &p);
4405 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4406 if ((video_enc.width % 16) != 0 ||
4407 (video_enc.height % 16) != 0) {
4408 ERROR("Image size must be a multiple of 16\n");
4411 } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
4412 get_arg(arg, sizeof(arg), &p);
4414 AVRational frame_rate;
4415 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4416 ERROR("Incorrect frame rate: %s\n", arg);
4418 video_enc.time_base.num = frame_rate.den;
4419 video_enc.time_base.den = frame_rate.num;
4422 } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
4423 get_arg(arg, sizeof(arg), &p);
4425 video_enc.gop_size = atoi(arg);
4426 } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
4428 video_enc.gop_size = 1;
4429 } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
4431 video_enc.mb_decision = FF_MB_DECISION_BITS;
4432 } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
4434 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4435 video_enc.flags |= CODEC_FLAG_4MV;
4437 } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
4438 !av_strcasecmp(cmd, "AVOptionAudio")) {
4440 AVCodecContext *avctx;
4442 get_arg(arg, sizeof(arg), &p);
4443 get_arg(arg2, sizeof(arg2), &p);
4444 if (!av_strcasecmp(cmd, "AVOptionVideo")) {
4446 type = AV_OPT_FLAG_VIDEO_PARAM;
4449 type = AV_OPT_FLAG_AUDIO_PARAM;
4451 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4452 ERROR("AVOption error: %s %s\n", arg, arg2);
4454 } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
4455 !av_strcasecmp(cmd, "AVPresetAudio")) {
4456 AVCodecContext *avctx;
4458 get_arg(arg, sizeof(arg), &p);
4459 if (!av_strcasecmp(cmd, "AVPresetVideo")) {
4461 video_enc.codec_id = video_id;
4462 type = AV_OPT_FLAG_VIDEO_PARAM;
4465 audio_enc.codec_id = audio_id;
4466 type = AV_OPT_FLAG_AUDIO_PARAM;
4468 if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4469 ERROR("AVPreset error: %s\n", arg);
4471 } else if (!av_strcasecmp(cmd, "VideoTag")) {
4472 get_arg(arg, sizeof(arg), &p);
4473 if ((strlen(arg) == 4) && stream)
4474 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4475 } else if (!av_strcasecmp(cmd, "BitExact")) {
4477 video_enc.flags |= CODEC_FLAG_BITEXACT;
4478 } else if (!av_strcasecmp(cmd, "DctFastint")) {
4480 video_enc.dct_algo = FF_DCT_FASTINT;
4481 } else if (!av_strcasecmp(cmd, "IdctSimple")) {
4483 video_enc.idct_algo = FF_IDCT_SIMPLE;
4484 } else if (!av_strcasecmp(cmd, "Qscale")) {
4485 get_arg(arg, sizeof(arg), &p);
4487 video_enc.flags |= CODEC_FLAG_QSCALE;
4488 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4490 } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
4491 get_arg(arg, sizeof(arg), &p);
4493 video_enc.max_qdiff = atoi(arg);
4494 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4495 ERROR("VideoQDiff out of range\n");
4498 } else if (!av_strcasecmp(cmd, "VideoQMax")) {
4499 get_arg(arg, sizeof(arg), &p);
4501 video_enc.qmax = atoi(arg);
4502 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4503 ERROR("VideoQMax out of range\n");
4506 } else if (!av_strcasecmp(cmd, "VideoQMin")) {
4507 get_arg(arg, sizeof(arg), &p);
4509 video_enc.qmin = atoi(arg);
4510 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4511 ERROR("VideoQMin out of range\n");
4514 } else if (!av_strcasecmp(cmd, "LumaElim")) {
4515 get_arg(arg, sizeof(arg), &p);
4517 video_enc.luma_elim_threshold = atoi(arg);
4518 } else if (!av_strcasecmp(cmd, "ChromaElim")) {
4519 get_arg(arg, sizeof(arg), &p);
4521 video_enc.chroma_elim_threshold = atoi(arg);
4522 } else if (!av_strcasecmp(cmd, "LumiMask")) {
4523 get_arg(arg, sizeof(arg), &p);
4525 video_enc.lumi_masking = atof(arg);
4526 } else if (!av_strcasecmp(cmd, "DarkMask")) {
4527 get_arg(arg, sizeof(arg), &p);
4529 video_enc.dark_masking = atof(arg);
4530 } else if (!av_strcasecmp(cmd, "NoVideo")) {
4531 video_id = AV_CODEC_ID_NONE;
4532 } else if (!av_strcasecmp(cmd, "NoAudio")) {
4533 audio_id = AV_CODEC_ID_NONE;
4534 } else if (!av_strcasecmp(cmd, "ACL")) {
4535 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4536 } else if (!av_strcasecmp(cmd, "DynamicACL")) {
4538 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4540 } else if (!av_strcasecmp(cmd, "RTSPOption")) {
4541 get_arg(arg, sizeof(arg), &p);
4543 av_freep(&stream->rtsp_option);
4544 stream->rtsp_option = av_strdup(arg);
4546 } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
4547 get_arg(arg, sizeof(arg), &p);
4549 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4550 ERROR("Invalid host/IP address: %s\n", arg);
4552 stream->is_multicast = 1;
4553 stream->loop = 1; /* default is looping */
4555 } else if (!av_strcasecmp(cmd, "MulticastPort")) {
4556 get_arg(arg, sizeof(arg), &p);
4558 stream->multicast_port = atoi(arg);
4559 } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
4560 get_arg(arg, sizeof(arg), &p);
4562 stream->multicast_ttl = atoi(arg);
4563 } else if (!av_strcasecmp(cmd, "NoLoop")) {
4566 } else if (!av_strcasecmp(cmd, "</Stream>")) {
4568 ERROR("No corresponding <Stream> for </Stream>\n");
4570 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4571 if (audio_id != AV_CODEC_ID_NONE) {
4572 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4573 audio_enc.codec_id = audio_id;
4574 add_codec(stream, &audio_enc);
4576 if (video_id != AV_CODEC_ID_NONE) {
4577 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4578 video_enc.codec_id = video_id;
4579 add_codec(stream, &video_enc);
4584 } else if (!av_strcasecmp(cmd, "<Redirect")) {
4585 /*********************************************/
4587 if (stream || feed || redirect) {
4588 ERROR("Already in a tag\n");
4590 redirect = av_mallocz(sizeof(FFStream));
4591 *last_stream = redirect;
4592 last_stream = &redirect->next;
4594 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4595 q = strrchr(redirect->filename, '>');
4598 redirect->stream_type = STREAM_TYPE_REDIRECT;
4600 } else if (!av_strcasecmp(cmd, "URL")) {
4602 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4603 } else if (!av_strcasecmp(cmd, "</Redirect>")) {
4605 ERROR("No corresponding <Redirect> for </Redirect>\n");
4607 if (!redirect->feed_filename[0]) {
4608 ERROR("No URL found for <Redirect>\n");
4612 } else if (!av_strcasecmp(cmd, "LoadModule")) {
4613 get_arg(arg, sizeof(arg), &p);
4617 ERROR("Module support not compiled into this version: '%s'\n", arg);
4620 ERROR("Incorrect keyword: '%s'\n", cmd);
4632 static void handle_child_exit(int sig)
4637 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4640 for (feed = first_feed; feed; feed = feed->next) {
4641 if (feed->pid == pid) {
4642 int uptime = time(0) - feed->pid_start;
4645 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4648 /* Turn off any more restarts */
4649 feed->child_argv = 0;
4654 need_to_start_children = 1;
4657 static void opt_debug(void)
4660 ffserver_daemon = 0;
4661 logfilename[0] = '-';
4664 void show_help_default(const char *opt, const char *arg)
4666 printf("usage: ffserver [options]\n"
4667 "Hyper fast multi format Audio/Video streaming server\n");
4669 show_help_options(options, "Main options:", 0, 0, 0);
4672 static const OptionDef options[] = {
4673 #include "cmdutils_common_opts.h"
4674 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4675 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4676 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4680 int main(int argc, char **argv)
4682 struct sigaction sigact = { { 0 } };
4684 parse_loglevel(argc, argv, options);
4686 avformat_network_init();
4688 show_banner(argc, argv, options);
4690 my_program_name = argv[0];
4691 my_program_dir = getcwd(0, 0);
4692 ffserver_daemon = 1;
4694 parse_options(NULL, argc, argv, options, NULL);
4696 unsetenv("http_proxy"); /* Kill the http_proxy */
4698 av_lfg_init(&random_state, av_get_random_seed());
4700 sigact.sa_handler = handle_child_exit;
4701 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4702 sigaction(SIGCHLD, &sigact, 0);
4704 if (parse_ffconfig(config_filename) < 0) {
4705 fprintf(stderr, "Incorrect config file - exiting.\n");
4709 /* open log file if needed */
4710 if (logfilename[0] != '\0') {
4711 if (!strcmp(logfilename, "-"))
4714 logfile = fopen(logfilename, "a");
4715 av_log_set_callback(http_av_log);
4718 build_file_streams();
4720 build_feed_streams();
4722 compute_bandwidth();
4724 /* put the process in background and detach it from its TTY */
4725 if (ffserver_daemon) {
4732 } else if (pid > 0) {
4739 open("/dev/null", O_RDWR);
4740 if (strcmp(logfilename, "-") != 0) {
4750 signal(SIGPIPE, SIG_IGN);
4752 if (ffserver_daemon)
4755 if (http_server() < 0) {
4756 http_log("Could not start server\n");