2 * Multiple format streaming server
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #define _XOPEN_SOURCE 600
26 #define closesocket close
31 #include "libavformat/avformat.h"
32 #include "libavformat/network.h"
33 #include "libavformat/os_support.h"
34 #include "libavformat/rtpdec.h"
35 #include "libavformat/rtsp.h"
36 #include "libavutil/avstring.h"
37 #include "libavutil/lfg.h"
38 #include "libavutil/random_seed.h"
39 #include "libavcodec/opt.h"
43 #include <sys/ioctl.h>
58 const char program_name[] = "FFserver";
59 const int program_birth_year = 2000;
61 static const OptionDef options[];
64 HTTPSTATE_WAIT_REQUEST,
65 HTTPSTATE_SEND_HEADER,
66 HTTPSTATE_SEND_DATA_HEADER,
67 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
68 HTTPSTATE_SEND_DATA_TRAILER,
69 HTTPSTATE_RECEIVE_DATA,
70 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
73 RTSPSTATE_WAIT_REQUEST,
75 RTSPSTATE_SEND_PACKET,
78 static const char *http_state[] = {
94 #define IOBUFFER_INIT_SIZE 8192
96 /* timeouts are in ms */
97 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
98 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
100 #define SYNC_TIMEOUT (10 * 1000)
102 typedef struct RTSPActionServerSetup {
104 char transport_option[512];
105 } RTSPActionServerSetup;
108 int64_t count1, count2;
109 int64_t time1, time2;
112 /* context associated with one connection */
113 typedef struct HTTPContext {
114 enum HTTPState state;
115 int fd; /* socket file descriptor */
116 struct sockaddr_in from_addr; /* origin */
117 struct pollfd *poll_entry; /* used when polling */
119 uint8_t *buffer_ptr, *buffer_end;
122 int chunked_encoding;
123 int chunk_size; /* 0 if it needs to be read */
124 struct HTTPContext *next;
125 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
129 /* input format handling */
130 AVFormatContext *fmt_in;
131 int64_t start_time; /* In milliseconds - this wraps fairly often */
132 int64_t first_pts; /* initial pts value */
133 int64_t cur_pts; /* current pts value from the stream in us */
134 int64_t cur_frame_duration; /* duration of the current frame in us */
135 int cur_frame_bytes; /* output frame size, needed to compute
136 the time at which we send each
138 int pts_stream_index; /* stream we choose as clock reference */
139 int64_t cur_clock; /* current clock reference value in us */
140 /* output format handling */
141 struct FFStream *stream;
142 /* -1 is invalid stream */
143 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
144 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
146 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
147 int last_packet_sent; /* true if last data packet was sent */
149 DataRateData datarate;
156 int is_packetized; /* if true, the stream is packetized */
157 int packet_stream_index; /* current stream for output in state machine */
159 /* RTSP state specific */
160 uint8_t *pb_buffer; /* XXX: use that in all the code */
162 int seq; /* RTSP sequence number */
164 /* RTP state specific */
165 enum RTSPLowerTransport rtp_protocol;
166 char session_id[32]; /* session id */
167 AVFormatContext *rtp_ctx[MAX_STREAMS];
169 /* RTP/UDP specific */
170 URLContext *rtp_handles[MAX_STREAMS];
172 /* RTP/TCP specific */
173 struct HTTPContext *rtsp_c;
174 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
177 /* each generated stream is described here */
181 STREAM_TYPE_REDIRECT,
184 enum IPAddressAction {
189 typedef struct IPAddressACL {
190 struct IPAddressACL *next;
191 enum IPAddressAction action;
192 /* These are in host order */
193 struct in_addr first;
197 /* description of each stream of the ffserver.conf file */
198 typedef struct FFStream {
199 enum StreamType stream_type;
200 char filename[1024]; /* stream filename */
201 struct FFStream *feed; /* feed we are using (can be null if
203 AVFormatParameters *ap_in; /* input parameters */
204 AVInputFormat *ifmt; /* if non NULL, force input format */
207 char dynamic_acl[1024];
209 int prebuffer; /* Number of millseconds early to start */
210 int64_t max_time; /* Number of milliseconds to run */
212 AVStream *streams[MAX_STREAMS];
213 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
214 char feed_filename[1024]; /* file name of the feed storage, or
215 input file name for a stream */
220 pid_t pid; /* Of ffmpeg process */
221 time_t pid_start; /* Of ffmpeg process */
223 struct FFStream *next;
224 unsigned bandwidth; /* bandwidth, in kbits/s */
227 /* multicast specific */
229 struct in_addr multicast_ip;
230 int multicast_port; /* first port used for multicast */
232 int loop; /* if true, send the stream in loops (only meaningful if file) */
235 int feed_opened; /* true if someone is writing to the feed */
236 int is_feed; /* true if it is a feed */
237 int readonly; /* True if writing is prohibited to the file */
238 int truncate; /* True if feeder connection truncate the feed file */
240 int64_t bytes_served;
241 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
242 int64_t feed_write_index; /* current write position in feed (it wraps around) */
243 int64_t feed_size; /* current size of feed */
244 struct FFStream *next_feed;
247 typedef struct FeedData {
248 long long data_count;
249 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
252 static struct sockaddr_in my_http_addr;
253 static struct sockaddr_in my_rtsp_addr;
255 static char logfilename[1024];
256 static HTTPContext *first_http_ctx;
257 static FFStream *first_feed; /* contains only feeds */
258 static FFStream *first_stream; /* contains all streams, including feeds */
260 static void new_connection(int server_fd, int is_rtsp);
261 static void close_connection(HTTPContext *c);
264 static int handle_connection(HTTPContext *c);
265 static int http_parse_request(HTTPContext *c);
266 static int http_send_data(HTTPContext *c);
267 static void compute_status(HTTPContext *c);
268 static int open_input_stream(HTTPContext *c, const char *info);
269 static int http_start_receive_data(HTTPContext *c);
270 static int http_receive_data(HTTPContext *c);
273 static int rtsp_parse_request(HTTPContext *c);
274 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
275 static void rtsp_cmd_options(HTTPContext *c, const char *url);
276 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
277 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
278 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
279 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
282 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
283 struct in_addr my_ip);
286 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
287 FFStream *stream, const char *session_id,
288 enum RTSPLowerTransport rtp_protocol);
289 static int rtp_new_av_stream(HTTPContext *c,
290 int stream_index, struct sockaddr_in *dest_addr,
291 HTTPContext *rtsp_c);
293 static const char *my_program_name;
294 static const char *my_program_dir;
296 static const char *config_filename = "/etc/ffserver.conf";
298 static int ffserver_debug;
299 static int ffserver_daemon;
300 static int no_launch;
301 static int need_to_start_children;
303 /* maximum number of simultaneous HTTP connections */
304 static unsigned int nb_max_http_connections = 2000;
305 static unsigned int nb_max_connections = 5;
306 static unsigned int nb_connections;
308 static uint64_t max_bandwidth = 1000;
309 static uint64_t current_bandwidth;
311 static int64_t cur_time; // Making this global saves on passing it around everywhere
313 static AVLFG random_state;
315 static FILE *logfile = NULL;
317 /* FIXME: make ffserver work with IPv6 */
318 /* resolve host with also IP address parsing */
319 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
322 if (!ff_inet_aton(hostname, sin_addr)) {
324 struct addrinfo *ai, *cur;
325 struct addrinfo hints;
326 memset(&hints, 0, sizeof(hints));
327 hints.ai_family = AF_INET;
328 if (getaddrinfo(hostname, NULL, &hints, &ai))
330 /* getaddrinfo returns a linked list of addrinfo structs.
331 * Even if we set ai_family = AF_INET above, make sure
332 * that the returned one actually is of the correct type. */
333 for (cur = ai; cur; cur = cur->ai_next) {
334 if (cur->ai_family == AF_INET) {
335 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
344 hp = gethostbyname(hostname);
347 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
353 static char *ctime1(char *buf2)
361 p = buf2 + strlen(p) - 1;
367 static void http_vlog(const char *fmt, va_list vargs)
369 static int print_prefix = 1;
374 fprintf(logfile, "%s ", buf);
376 print_prefix = strstr(fmt, "\n") != NULL;
377 vfprintf(logfile, fmt, vargs);
382 static void __attribute__ ((format (printf, 1, 2))) http_log(const char *fmt, ...)
385 va_start(vargs, fmt);
386 http_vlog(fmt, vargs);
390 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
392 static int print_prefix = 1;
393 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
394 if (level > av_log_get_level())
396 if (print_prefix && avc)
397 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
398 print_prefix = strstr(fmt, "\n") != NULL;
399 http_vlog(fmt, vargs);
402 static void log_connection(HTTPContext *c)
407 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
408 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
409 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
412 static void update_datarate(DataRateData *drd, int64_t count)
414 if (!drd->time1 && !drd->count1) {
415 drd->time1 = drd->time2 = cur_time;
416 drd->count1 = drd->count2 = count;
417 } else if (cur_time - drd->time2 > 5000) {
418 drd->time1 = drd->time2;
419 drd->count1 = drd->count2;
420 drd->time2 = cur_time;
425 /* In bytes per second */
426 static int compute_datarate(DataRateData *drd, int64_t count)
428 if (cur_time == drd->time1)
431 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
435 static void start_children(FFStream *feed)
440 for (; feed; feed = feed->next) {
441 if (feed->child_argv && !feed->pid) {
442 feed->pid_start = time(0);
447 http_log("Unable to create children\n");
456 av_strlcpy(pathname, my_program_name, sizeof(pathname));
458 slash = strrchr(pathname, '/');
463 strcpy(slash, "ffmpeg");
465 http_log("Launch commandline: ");
466 http_log("%s ", pathname);
467 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
468 http_log("%s ", feed->child_argv[i]);
471 for (i = 3; i < 256; i++)
474 if (!ffserver_debug) {
475 i = open("/dev/null", O_RDWR);
484 /* This is needed to make relative pathnames work */
485 chdir(my_program_dir);
487 signal(SIGPIPE, SIG_DFL);
489 execvp(pathname, feed->child_argv);
497 /* open a listening socket */
498 static int socket_open_listen(struct sockaddr_in *my_addr)
502 server_fd = socket(AF_INET,SOCK_STREAM,0);
509 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
511 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
513 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
515 closesocket(server_fd);
519 if (listen (server_fd, 5) < 0) {
521 closesocket(server_fd);
524 ff_socket_nonblock(server_fd, 1);
529 /* start all multicast streams */
530 static void start_multicast(void)
535 struct sockaddr_in dest_addr;
536 int default_port, stream_index;
539 for(stream = first_stream; stream != NULL; stream = stream->next) {
540 if (stream->is_multicast) {
541 /* open the RTP connection */
542 snprintf(session_id, sizeof(session_id), "%08x%08x",
543 av_lfg_get(&random_state), av_lfg_get(&random_state));
545 /* choose a port if none given */
546 if (stream->multicast_port == 0) {
547 stream->multicast_port = default_port;
551 dest_addr.sin_family = AF_INET;
552 dest_addr.sin_addr = stream->multicast_ip;
553 dest_addr.sin_port = htons(stream->multicast_port);
555 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
556 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
560 if (open_input_stream(rtp_c, "") < 0) {
561 http_log("Could not open input stream for stream '%s'\n",
566 /* open each RTP stream */
567 for(stream_index = 0; stream_index < stream->nb_streams;
569 dest_addr.sin_port = htons(stream->multicast_port +
571 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
572 http_log("Could not open output stream '%s/streamid=%d'\n",
573 stream->filename, stream_index);
578 /* change state to send data */
579 rtp_c->state = HTTPSTATE_SEND_DATA;
584 /* main loop of the http server */
585 static int http_server(void)
587 int server_fd = 0, rtsp_server_fd = 0;
588 int ret, delay, delay1;
589 struct pollfd *poll_table, *poll_entry;
590 HTTPContext *c, *c_next;
592 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
593 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
597 if (my_http_addr.sin_port) {
598 server_fd = socket_open_listen(&my_http_addr);
603 if (my_rtsp_addr.sin_port) {
604 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
605 if (rtsp_server_fd < 0)
609 if (!rtsp_server_fd && !server_fd) {
610 http_log("HTTP and RTSP disabled.\n");
614 http_log("FFserver started.\n");
616 start_children(first_feed);
621 poll_entry = poll_table;
623 poll_entry->fd = server_fd;
624 poll_entry->events = POLLIN;
627 if (rtsp_server_fd) {
628 poll_entry->fd = rtsp_server_fd;
629 poll_entry->events = POLLIN;
633 /* wait for events on each HTTP handle */
640 case HTTPSTATE_SEND_HEADER:
641 case RTSPSTATE_SEND_REPLY:
642 case RTSPSTATE_SEND_PACKET:
643 c->poll_entry = poll_entry;
645 poll_entry->events = POLLOUT;
648 case HTTPSTATE_SEND_DATA_HEADER:
649 case HTTPSTATE_SEND_DATA:
650 case HTTPSTATE_SEND_DATA_TRAILER:
651 if (!c->is_packetized) {
652 /* for TCP, we output as much as we can (may need to put a limit) */
653 c->poll_entry = poll_entry;
655 poll_entry->events = POLLOUT;
658 /* when ffserver is doing the timing, we work by
659 looking at which packet need to be sent every
661 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
666 case HTTPSTATE_WAIT_REQUEST:
667 case HTTPSTATE_RECEIVE_DATA:
668 case HTTPSTATE_WAIT_FEED:
669 case RTSPSTATE_WAIT_REQUEST:
670 /* need to catch errors */
671 c->poll_entry = poll_entry;
673 poll_entry->events = POLLIN;/* Maybe this will work */
677 c->poll_entry = NULL;
683 /* wait for an event on one connection. We poll at least every
684 second to handle timeouts */
686 ret = poll(poll_table, poll_entry - poll_table, delay);
687 if (ret < 0 && ff_neterrno() != FF_NETERROR(EAGAIN) &&
688 ff_neterrno() != FF_NETERROR(EINTR))
692 cur_time = av_gettime() / 1000;
694 if (need_to_start_children) {
695 need_to_start_children = 0;
696 start_children(first_feed);
699 /* now handle the events */
700 for(c = first_http_ctx; c != NULL; c = c_next) {
702 if (handle_connection(c) < 0) {
703 /* close and free the connection */
709 poll_entry = poll_table;
711 /* new HTTP connection request ? */
712 if (poll_entry->revents & POLLIN)
713 new_connection(server_fd, 0);
716 if (rtsp_server_fd) {
717 /* new RTSP connection request ? */
718 if (poll_entry->revents & POLLIN)
719 new_connection(rtsp_server_fd, 1);
724 /* start waiting for a new HTTP/RTSP request */
725 static void start_wait_request(HTTPContext *c, int is_rtsp)
727 c->buffer_ptr = c->buffer;
728 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
731 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
732 c->state = RTSPSTATE_WAIT_REQUEST;
734 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
735 c->state = HTTPSTATE_WAIT_REQUEST;
739 static void http_send_too_busy_reply(int fd)
742 int len = snprintf(buffer, sizeof(buffer),
743 "HTTP/1.0 200 Server too busy\r\n"
744 "Content-type: text/html\r\n"
746 "<html><head><title>Too busy</title></head><body>\r\n"
747 "<p>The server is too busy to serve your request at this time.</p>\r\n"
748 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
749 "</body></html>\r\n",
750 nb_connections, nb_max_connections);
751 send(fd, buffer, len, 0);
755 static void new_connection(int server_fd, int is_rtsp)
757 struct sockaddr_in from_addr;
759 HTTPContext *c = NULL;
761 len = sizeof(from_addr);
762 fd = accept(server_fd, (struct sockaddr *)&from_addr,
765 http_log("error during accept %s\n", strerror(errno));
768 ff_socket_nonblock(fd, 1);
770 if (nb_connections >= nb_max_connections) {
771 http_send_too_busy_reply(fd);
775 /* add a new connection */
776 c = av_mallocz(sizeof(HTTPContext));
781 c->poll_entry = NULL;
782 c->from_addr = from_addr;
783 c->buffer_size = IOBUFFER_INIT_SIZE;
784 c->buffer = av_malloc(c->buffer_size);
788 c->next = first_http_ctx;
792 start_wait_request(c, is_rtsp);
804 static void close_connection(HTTPContext *c)
806 HTTPContext **cp, *c1;
808 AVFormatContext *ctx;
812 /* remove connection from list */
813 cp = &first_http_ctx;
814 while ((*cp) != NULL) {
822 /* remove references, if any (XXX: do it faster) */
823 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
828 /* remove connection associated resources */
832 /* close each frame parser */
833 for(i=0;i<c->fmt_in->nb_streams;i++) {
834 st = c->fmt_in->streams[i];
835 if (st->codec->codec)
836 avcodec_close(st->codec);
838 av_close_input_file(c->fmt_in);
841 /* free RTP output streams if any */
844 nb_streams = c->stream->nb_streams;
846 for(i=0;i<nb_streams;i++) {
849 av_write_trailer(ctx);
850 av_metadata_free(&ctx->metadata);
851 av_free(ctx->streams[0]);
854 h = c->rtp_handles[i];
861 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
864 if (url_open_dyn_buf(&ctx->pb) >= 0) {
865 av_write_trailer(ctx);
866 av_freep(&c->pb_buffer);
867 url_close_dyn_buf(ctx->pb, &c->pb_buffer);
872 for(i=0; i<ctx->nb_streams; i++)
873 av_free(ctx->streams[i]);
875 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
876 current_bandwidth -= c->stream->bandwidth;
878 /* signal that there is no feed if we are the feeder socket */
879 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
880 c->stream->feed_opened = 0;
884 av_freep(&c->pb_buffer);
885 av_freep(&c->packet_buffer);
891 static int handle_connection(HTTPContext *c)
896 case HTTPSTATE_WAIT_REQUEST:
897 case RTSPSTATE_WAIT_REQUEST:
899 if ((c->timeout - cur_time) < 0)
901 if (c->poll_entry->revents & (POLLERR | POLLHUP))
904 /* no need to read if no events */
905 if (!(c->poll_entry->revents & POLLIN))
909 len = recv(c->fd, c->buffer_ptr, 1, 0);
911 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
912 ff_neterrno() != FF_NETERROR(EINTR))
914 } else if (len == 0) {
917 /* search for end of request. */
919 c->buffer_ptr += len;
921 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
922 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
923 /* request found : parse it and reply */
924 if (c->state == HTTPSTATE_WAIT_REQUEST) {
925 ret = http_parse_request(c);
927 ret = rtsp_parse_request(c);
931 } else if (ptr >= c->buffer_end) {
932 /* request too long: cannot do anything */
934 } else goto read_loop;
938 case HTTPSTATE_SEND_HEADER:
939 if (c->poll_entry->revents & (POLLERR | POLLHUP))
942 /* no need to write if no events */
943 if (!(c->poll_entry->revents & POLLOUT))
945 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
947 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
948 ff_neterrno() != FF_NETERROR(EINTR)) {
949 /* error : close connection */
950 av_freep(&c->pb_buffer);
954 c->buffer_ptr += len;
956 c->stream->bytes_served += len;
957 c->data_count += len;
958 if (c->buffer_ptr >= c->buffer_end) {
959 av_freep(&c->pb_buffer);
963 /* all the buffer was sent : synchronize to the incoming stream */
964 c->state = HTTPSTATE_SEND_DATA_HEADER;
965 c->buffer_ptr = c->buffer_end = c->buffer;
970 case HTTPSTATE_SEND_DATA:
971 case HTTPSTATE_SEND_DATA_HEADER:
972 case HTTPSTATE_SEND_DATA_TRAILER:
973 /* for packetized output, we consider we can always write (the
974 input streams sets the speed). It may be better to verify
975 that we do not rely too much on the kernel queues */
976 if (!c->is_packetized) {
977 if (c->poll_entry->revents & (POLLERR | POLLHUP))
980 /* no need to read if no events */
981 if (!(c->poll_entry->revents & POLLOUT))
984 if (http_send_data(c) < 0)
986 /* close connection if trailer sent */
987 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
990 case HTTPSTATE_RECEIVE_DATA:
991 /* no need to read if no events */
992 if (c->poll_entry->revents & (POLLERR | POLLHUP))
994 if (!(c->poll_entry->revents & POLLIN))
996 if (http_receive_data(c) < 0)
999 case HTTPSTATE_WAIT_FEED:
1000 /* no need to read if no events */
1001 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1004 /* nothing to do, we'll be waken up by incoming feed packets */
1007 case RTSPSTATE_SEND_REPLY:
1008 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1009 av_freep(&c->pb_buffer);
1012 /* no need to write if no events */
1013 if (!(c->poll_entry->revents & POLLOUT))
1015 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1017 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
1018 ff_neterrno() != FF_NETERROR(EINTR)) {
1019 /* error : close connection */
1020 av_freep(&c->pb_buffer);
1024 c->buffer_ptr += len;
1025 c->data_count += len;
1026 if (c->buffer_ptr >= c->buffer_end) {
1027 /* all the buffer was sent : wait for a new request */
1028 av_freep(&c->pb_buffer);
1029 start_wait_request(c, 1);
1033 case RTSPSTATE_SEND_PACKET:
1034 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1035 av_freep(&c->packet_buffer);
1038 /* no need to write if no events */
1039 if (!(c->poll_entry->revents & POLLOUT))
1041 len = send(c->fd, c->packet_buffer_ptr,
1042 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1044 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
1045 ff_neterrno() != FF_NETERROR(EINTR)) {
1046 /* error : close connection */
1047 av_freep(&c->packet_buffer);
1051 c->packet_buffer_ptr += len;
1052 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1053 /* all the buffer was sent : wait for a new request */
1054 av_freep(&c->packet_buffer);
1055 c->state = RTSPSTATE_WAIT_REQUEST;
1059 case HTTPSTATE_READY:
1068 static int extract_rates(char *rates, int ratelen, const char *request)
1072 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1073 if (strncasecmp(p, "Pragma:", 7) == 0) {
1074 const char *q = p + 7;
1076 while (*q && *q != '\n' && isspace(*q))
1079 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1085 memset(rates, 0xff, ratelen);
1088 while (*q && *q != '\n' && *q != ':')
1091 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1095 if (stream_no < ratelen && stream_no >= 0)
1096 rates[stream_no] = rate_no;
1098 while (*q && *q != '\n' && !isspace(*q))
1105 p = strchr(p, '\n');
1115 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1118 int best_bitrate = 100000000;
1121 for (i = 0; i < feed->nb_streams; i++) {
1122 AVCodecContext *feed_codec = feed->streams[i]->codec;
1124 if (feed_codec->codec_id != codec->codec_id ||
1125 feed_codec->sample_rate != codec->sample_rate ||
1126 feed_codec->width != codec->width ||
1127 feed_codec->height != codec->height)
1130 /* Potential stream */
1132 /* We want the fastest stream less than bit_rate, or the slowest
1133 * faster than bit_rate
1136 if (feed_codec->bit_rate <= bit_rate) {
1137 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1138 best_bitrate = feed_codec->bit_rate;
1142 if (feed_codec->bit_rate < best_bitrate) {
1143 best_bitrate = feed_codec->bit_rate;
1152 static int modify_current_stream(HTTPContext *c, char *rates)
1155 FFStream *req = c->stream;
1156 int action_required = 0;
1158 /* Not much we can do for a feed */
1162 for (i = 0; i < req->nb_streams; i++) {
1163 AVCodecContext *codec = req->streams[i]->codec;
1167 c->switch_feed_streams[i] = req->feed_streams[i];
1170 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1173 /* Wants off or slow */
1174 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1176 /* This doesn't work well when it turns off the only stream! */
1177 c->switch_feed_streams[i] = -2;
1178 c->feed_streams[i] = -2;
1183 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1184 action_required = 1;
1187 return action_required;
1191 static void do_switch_stream(HTTPContext *c, int i)
1193 if (c->switch_feed_streams[i] >= 0) {
1195 c->feed_streams[i] = c->switch_feed_streams[i];
1198 /* Now update the stream */
1200 c->switch_feed_streams[i] = -1;
1203 /* XXX: factorize in utils.c ? */
1204 /* XXX: take care with different space meaning */
1205 static void skip_spaces(const char **pp)
1209 while (*p == ' ' || *p == '\t')
1214 static void get_word(char *buf, int buf_size, const char **pp)
1222 while (!isspace(*p) && *p != '\0') {
1223 if ((q - buf) < buf_size - 1)
1232 static void get_arg(char *buf, int buf_size, const char **pp)
1239 while (isspace(*p)) p++;
1242 if (*p == '\"' || *p == '\'')
1254 if ((q - buf) < buf_size - 1)
1259 if (quote && *p == quote)
1264 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1265 const char *p, const char *filename, int line_num)
1271 get_arg(arg, sizeof(arg), &p);
1272 if (strcasecmp(arg, "allow") == 0)
1273 acl.action = IP_ALLOW;
1274 else if (strcasecmp(arg, "deny") == 0)
1275 acl.action = IP_DENY;
1277 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1278 filename, line_num, arg);
1282 get_arg(arg, sizeof(arg), &p);
1284 if (resolve_host(&acl.first, arg) != 0) {
1285 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1286 filename, line_num, arg);
1289 acl.last = acl.first;
1291 get_arg(arg, sizeof(arg), &p);
1294 if (resolve_host(&acl.last, arg) != 0) {
1295 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1296 filename, line_num, arg);
1302 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1303 IPAddressACL **naclp = 0;
1309 naclp = &stream->acl;
1315 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1316 filename, line_num);
1322 naclp = &(*naclp)->next;
1330 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1335 IPAddressACL *acl = NULL;
1339 f = fopen(stream->dynamic_acl, "r");
1341 perror(stream->dynamic_acl);
1345 acl = av_mallocz(sizeof(IPAddressACL));
1349 if (fgets(line, sizeof(line), f) == NULL)
1355 if (*p == '\0' || *p == '#')
1357 get_arg(cmd, sizeof(cmd), &p);
1359 if (!strcasecmp(cmd, "ACL"))
1360 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1367 static void free_acl_list(IPAddressACL *in_acl)
1369 IPAddressACL *pacl,*pacl2;
1379 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1381 enum IPAddressAction last_action = IP_DENY;
1383 struct in_addr *src = &c->from_addr.sin_addr;
1384 unsigned long src_addr = src->s_addr;
1386 for (acl = in_acl; acl; acl = acl->next) {
1387 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1388 return (acl->action == IP_ALLOW) ? 1 : 0;
1389 last_action = acl->action;
1392 /* Nothing matched, so return not the last action */
1393 return (last_action == IP_DENY) ? 1 : 0;
1396 static int validate_acl(FFStream *stream, HTTPContext *c)
1402 /* if stream->acl is null validate_acl_list will return 1 */
1403 ret = validate_acl_list(stream->acl, c);
1405 if (stream->dynamic_acl[0]) {
1406 acl = parse_dynamic_acl(stream, c);
1408 ret = validate_acl_list(acl, c);
1416 /* compute the real filename of a file by matching it without its
1417 extensions to all the stream filenames */
1418 static void compute_real_filename(char *filename, int max_size)
1425 /* compute filename by matching without the file extensions */
1426 av_strlcpy(file1, filename, sizeof(file1));
1427 p = strrchr(file1, '.');
1430 for(stream = first_stream; stream != NULL; stream = stream->next) {
1431 av_strlcpy(file2, stream->filename, sizeof(file2));
1432 p = strrchr(file2, '.');
1435 if (!strcmp(file1, file2)) {
1436 av_strlcpy(filename, stream->filename, max_size);
1451 /* parse http request and prepare header */
1452 static int http_parse_request(HTTPContext *c)
1455 enum RedirType redir_type;
1457 char info[1024], filename[1024];
1461 const char *mime_type;
1465 char *useragent = 0;
1468 get_word(cmd, sizeof(cmd), (const char **)&p);
1469 av_strlcpy(c->method, cmd, sizeof(c->method));
1471 if (!strcmp(cmd, "GET"))
1473 else if (!strcmp(cmd, "POST"))
1478 get_word(url, sizeof(url), (const char **)&p);
1479 av_strlcpy(c->url, url, sizeof(c->url));
1481 get_word(protocol, sizeof(protocol), (const char **)&p);
1482 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1485 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1488 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1490 /* find the filename and the optional info string in the request */
1491 p = strchr(url, '?');
1493 av_strlcpy(info, p, sizeof(info));
1498 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1500 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1501 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1503 if (*useragent && *useragent != '\n' && isspace(*useragent))
1507 p = strchr(p, '\n');
1514 redir_type = REDIR_NONE;
1515 if (av_match_ext(filename, "asx")) {
1516 redir_type = REDIR_ASX;
1517 filename[strlen(filename)-1] = 'f';
1518 } else if (av_match_ext(filename, "asf") &&
1519 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1520 /* if this isn't WMP or lookalike, return the redirector file */
1521 redir_type = REDIR_ASF;
1522 } else if (av_match_ext(filename, "rpm,ram")) {
1523 redir_type = REDIR_RAM;
1524 strcpy(filename + strlen(filename)-2, "m");
1525 } else if (av_match_ext(filename, "rtsp")) {
1526 redir_type = REDIR_RTSP;
1527 compute_real_filename(filename, sizeof(filename) - 1);
1528 } else if (av_match_ext(filename, "sdp")) {
1529 redir_type = REDIR_SDP;
1530 compute_real_filename(filename, sizeof(filename) - 1);
1533 // "redirect" / request to index.html
1534 if (!strlen(filename))
1535 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1537 stream = first_stream;
1538 while (stream != NULL) {
1539 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1541 stream = stream->next;
1543 if (stream == NULL) {
1544 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1545 http_log("File '%s' not found\n", url);
1550 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1551 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1553 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1554 c->http_error = 301;
1556 q += snprintf(q, c->buffer_size,
1557 "HTTP/1.0 301 Moved\r\n"
1559 "Content-type: text/html\r\n"
1561 "<html><head><title>Moved</title></head><body>\r\n"
1562 "You should be <a href=\"%s\">redirected</a>.\r\n"
1563 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1564 /* prepare output buffer */
1565 c->buffer_ptr = c->buffer;
1567 c->state = HTTPSTATE_SEND_HEADER;
1571 /* If this is WMP, get the rate information */
1572 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1573 if (modify_current_stream(c, ratebuf)) {
1574 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1575 if (c->switch_feed_streams[i] >= 0)
1576 do_switch_stream(c, i);
1581 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1582 current_bandwidth += stream->bandwidth;
1584 /* If already streaming this feed, do not let start another feeder. */
1585 if (stream->feed_opened) {
1586 snprintf(msg, sizeof(msg), "This feed is already being received.");
1587 http_log("Feed '%s' already being received\n", stream->feed_filename);
1591 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1592 c->http_error = 200;
1594 q += snprintf(q, c->buffer_size,
1595 "HTTP/1.0 200 Server too busy\r\n"
1596 "Content-type: text/html\r\n"
1598 "<html><head><title>Too busy</title></head><body>\r\n"
1599 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1600 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1601 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1602 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1603 /* prepare output buffer */
1604 c->buffer_ptr = c->buffer;
1606 c->state = HTTPSTATE_SEND_HEADER;
1610 if (redir_type != REDIR_NONE) {
1613 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1614 if (strncasecmp(p, "Host:", 5) == 0) {
1618 p = strchr(p, '\n');
1629 while (isspace(*hostinfo))
1632 eoh = strchr(hostinfo, '\n');
1634 if (eoh[-1] == '\r')
1637 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1638 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1639 hostbuf[eoh - hostinfo] = 0;
1641 c->http_error = 200;
1643 switch(redir_type) {
1645 q += snprintf(q, c->buffer_size,
1646 "HTTP/1.0 200 ASX Follows\r\n"
1647 "Content-type: video/x-ms-asf\r\n"
1649 "<ASX Version=\"3\">\r\n"
1650 //"<!-- Autogenerated by ffserver -->\r\n"
1651 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1652 "</ASX>\r\n", hostbuf, filename, info);
1655 q += snprintf(q, c->buffer_size,
1656 "HTTP/1.0 200 RAM Follows\r\n"
1657 "Content-type: audio/x-pn-realaudio\r\n"
1659 "# Autogenerated by ffserver\r\n"
1660 "http://%s/%s%s\r\n", hostbuf, filename, info);
1663 q += snprintf(q, c->buffer_size,
1664 "HTTP/1.0 200 ASF Redirect follows\r\n"
1665 "Content-type: video/x-ms-asf\r\n"
1668 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1672 char hostname[256], *p;
1673 /* extract only hostname */
1674 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1675 p = strrchr(hostname, ':');
1678 q += snprintf(q, c->buffer_size,
1679 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1680 /* XXX: incorrect mime type ? */
1681 "Content-type: application/x-rtsp\r\n"
1683 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1689 int sdp_data_size, len;
1690 struct sockaddr_in my_addr;
1692 q += snprintf(q, c->buffer_size,
1693 "HTTP/1.0 200 OK\r\n"
1694 "Content-type: application/sdp\r\n"
1697 len = sizeof(my_addr);
1698 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1700 /* XXX: should use a dynamic buffer */
1701 sdp_data_size = prepare_sdp_description(stream,
1704 if (sdp_data_size > 0) {
1705 memcpy(q, sdp_data, sdp_data_size);
1717 /* prepare output buffer */
1718 c->buffer_ptr = c->buffer;
1720 c->state = HTTPSTATE_SEND_HEADER;
1726 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1730 stream->conns_served++;
1732 /* XXX: add there authenticate and IP match */
1735 /* if post, it means a feed is being sent */
1736 if (!stream->is_feed) {
1737 /* However it might be a status report from WMP! Let us log the
1738 * data as it might come in handy one day. */
1742 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1743 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1747 if (strncasecmp(p, "Pragma: client-id=", 18) == 0)
1748 client_id = strtol(p + 18, 0, 10);
1749 p = strchr(p, '\n');
1757 char *eol = strchr(logline, '\n');
1762 if (eol[-1] == '\r')
1764 http_log("%.*s\n", (int) (eol - logline), logline);
1765 c->suppress_log = 1;
1770 http_log("\nGot request:\n%s\n", c->buffer);
1773 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1776 /* Now we have to find the client_id */
1777 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1778 if (wmpc->wmp_client_id == client_id)
1782 if (wmpc && modify_current_stream(wmpc, ratebuf))
1783 wmpc->switch_pending = 1;
1786 snprintf(msg, sizeof(msg), "POST command not handled");
1790 if (http_start_receive_data(c) < 0) {
1791 snprintf(msg, sizeof(msg), "could not open feed");
1795 c->state = HTTPSTATE_RECEIVE_DATA;
1800 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1801 http_log("\nGot request:\n%s\n", c->buffer);
1804 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1807 /* open input stream */
1808 if (open_input_stream(c, info) < 0) {
1809 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1813 /* prepare http header */
1815 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1816 mime_type = c->stream->fmt->mime_type;
1818 mime_type = "application/x-octet-stream";
1819 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
1821 /* for asf, we need extra headers */
1822 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1823 /* Need to allocate a client id */
1825 c->wmp_client_id = av_lfg_get(&random_state);
1827 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
1829 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1830 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1832 /* prepare output buffer */
1834 c->buffer_ptr = c->buffer;
1836 c->state = HTTPSTATE_SEND_HEADER;
1839 c->http_error = 404;
1841 q += snprintf(q, c->buffer_size,
1842 "HTTP/1.0 404 Not Found\r\n"
1843 "Content-type: text/html\r\n"
1846 "<head><title>404 Not Found</title></head>\n"
1849 /* prepare output buffer */
1850 c->buffer_ptr = c->buffer;
1852 c->state = HTTPSTATE_SEND_HEADER;
1856 c->http_error = 200; /* horrible : we use this value to avoid
1857 going to the send data state */
1858 c->state = HTTPSTATE_SEND_HEADER;
1862 static void fmt_bytecount(ByteIOContext *pb, int64_t count)
1864 static const char *suffix = " kMGTP";
1867 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1869 url_fprintf(pb, "%"PRId64"%c", count, *s);
1872 static void compute_status(HTTPContext *c)
1881 if (url_open_dyn_buf(&pb) < 0) {
1882 /* XXX: return an error ? */
1883 c->buffer_ptr = c->buffer;
1884 c->buffer_end = c->buffer;
1888 url_fprintf(pb, "HTTP/1.0 200 OK\r\n");
1889 url_fprintf(pb, "Content-type: %s\r\n", "text/html");
1890 url_fprintf(pb, "Pragma: no-cache\r\n");
1891 url_fprintf(pb, "\r\n");
1893 url_fprintf(pb, "<html><head><title>%s Status</title>\n", program_name);
1894 if (c->stream->feed_filename[0])
1895 url_fprintf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1896 url_fprintf(pb, "</head>\n<body>");
1897 url_fprintf(pb, "<h1>%s Status</h1>\n", program_name);
1899 url_fprintf(pb, "<h2>Available Streams</h2>\n");
1900 url_fprintf(pb, "<table cellspacing=0 cellpadding=4>\n");
1901 url_fprintf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>kbits/s<th align=left>Video<br>kbits/s<th><br>Codec<th align=left>Audio<br>kbits/s<th><br>Codec<th align=left valign=top>Feed\n");
1902 stream = first_stream;
1903 while (stream != NULL) {
1904 char sfilename[1024];
1907 if (stream->feed != stream) {
1908 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1909 eosf = sfilename + strlen(sfilename);
1910 if (eosf - sfilename >= 4) {
1911 if (strcmp(eosf - 4, ".asf") == 0)
1912 strcpy(eosf - 4, ".asx");
1913 else if (strcmp(eosf - 3, ".rm") == 0)
1914 strcpy(eosf - 3, ".ram");
1915 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1916 /* generate a sample RTSP director if
1917 unicast. Generate an SDP redirector if
1919 eosf = strrchr(sfilename, '.');
1921 eosf = sfilename + strlen(sfilename);
1922 if (stream->is_multicast)
1923 strcpy(eosf, ".sdp");
1925 strcpy(eosf, ".rtsp");
1929 url_fprintf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1930 sfilename, stream->filename);
1931 url_fprintf(pb, "<td align=right> %d <td align=right> ",
1932 stream->conns_served);
1933 fmt_bytecount(pb, stream->bytes_served);
1934 switch(stream->stream_type) {
1935 case STREAM_TYPE_LIVE: {
1936 int audio_bit_rate = 0;
1937 int video_bit_rate = 0;
1938 const char *audio_codec_name = "";
1939 const char *video_codec_name = "";
1940 const char *audio_codec_name_extra = "";
1941 const char *video_codec_name_extra = "";
1943 for(i=0;i<stream->nb_streams;i++) {
1944 AVStream *st = stream->streams[i];
1945 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1946 switch(st->codec->codec_type) {
1947 case AVMEDIA_TYPE_AUDIO:
1948 audio_bit_rate += st->codec->bit_rate;
1950 if (*audio_codec_name)
1951 audio_codec_name_extra = "...";
1952 audio_codec_name = codec->name;
1955 case AVMEDIA_TYPE_VIDEO:
1956 video_bit_rate += st->codec->bit_rate;
1958 if (*video_codec_name)
1959 video_codec_name_extra = "...";
1960 video_codec_name = codec->name;
1963 case AVMEDIA_TYPE_DATA:
1964 video_bit_rate += st->codec->bit_rate;
1970 url_fprintf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s",
1973 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1974 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
1976 url_fprintf(pb, "<td>%s", stream->feed->filename);
1978 url_fprintf(pb, "<td>%s", stream->feed_filename);
1979 url_fprintf(pb, "\n");
1983 url_fprintf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
1987 stream = stream->next;
1989 url_fprintf(pb, "</table>\n");
1991 stream = first_stream;
1992 while (stream != NULL) {
1993 if (stream->feed == stream) {
1994 url_fprintf(pb, "<h2>Feed %s</h2>", stream->filename);
1996 url_fprintf(pb, "Running as pid %d.\n", stream->pid);
1998 #if defined(linux) && !defined(CONFIG_NOCUTILS)
2003 /* This is somewhat linux specific I guess */
2004 snprintf(ps_cmd, sizeof(ps_cmd),
2005 "ps -o \"%%cpu,cputime\" --no-headers %d",
2008 pid_stat = popen(ps_cmd, "r");
2013 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2015 url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2023 url_fprintf(pb, "<p>");
2025 url_fprintf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
2027 for (i = 0; i < stream->nb_streams; i++) {
2028 AVStream *st = stream->streams[i];
2029 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2030 const char *type = "unknown";
2031 char parameters[64];
2035 switch(st->codec->codec_type) {
2036 case AVMEDIA_TYPE_AUDIO:
2038 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2040 case AVMEDIA_TYPE_VIDEO:
2042 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2043 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2048 url_fprintf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2049 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2051 url_fprintf(pb, "</table>\n");
2054 stream = stream->next;
2057 /* connection status */
2058 url_fprintf(pb, "<h2>Connection Status</h2>\n");
2060 url_fprintf(pb, "Number of connections: %d / %d<br>\n",
2061 nb_connections, nb_max_connections);
2063 url_fprintf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2064 current_bandwidth, max_bandwidth);
2066 url_fprintf(pb, "<table>\n");
2067 url_fprintf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
2068 c1 = first_http_ctx;
2070 while (c1 != NULL) {
2076 for (j = 0; j < c1->stream->nb_streams; j++) {
2077 if (!c1->stream->feed)
2078 bitrate += c1->stream->streams[j]->codec->bit_rate;
2079 else if (c1->feed_streams[j] >= 0)
2080 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2085 p = inet_ntoa(c1->from_addr.sin_addr);
2086 url_fprintf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2088 c1->stream ? c1->stream->filename : "",
2089 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2092 http_state[c1->state]);
2093 fmt_bytecount(pb, bitrate);
2094 url_fprintf(pb, "<td align=right>");
2095 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2096 url_fprintf(pb, "<td align=right>");
2097 fmt_bytecount(pb, c1->data_count);
2098 url_fprintf(pb, "\n");
2101 url_fprintf(pb, "</table>\n");
2106 url_fprintf(pb, "<hr size=1 noshade>Generated at %s", p);
2107 url_fprintf(pb, "</body>\n</html>\n");
2109 len = url_close_dyn_buf(pb, &c->pb_buffer);
2110 c->buffer_ptr = c->pb_buffer;
2111 c->buffer_end = c->pb_buffer + len;
2114 /* check if the parser needs to be opened for stream i */
2115 static void open_parser(AVFormatContext *s, int i)
2117 AVStream *st = s->streams[i];
2120 if (!st->codec->codec) {
2121 codec = avcodec_find_decoder(st->codec->codec_id);
2122 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
2123 st->codec->parse_only = 1;
2124 if (avcodec_open(st->codec, codec) < 0)
2125 st->codec->parse_only = 0;
2130 static int open_input_stream(HTTPContext *c, const char *info)
2133 char input_filename[1024];
2135 int buf_size, i, ret;
2138 /* find file name */
2139 if (c->stream->feed) {
2140 strcpy(input_filename, c->stream->feed->feed_filename);
2141 buf_size = FFM_PACKET_SIZE;
2142 /* compute position (absolute time) */
2143 if (find_info_tag(buf, sizeof(buf), "date", info)) {
2144 stream_pos = parse_date(buf, 0);
2145 if (stream_pos == INT64_MIN)
2147 } else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
2148 int prebuffer = strtol(buf, 0, 10);
2149 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2151 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2153 strcpy(input_filename, c->stream->feed_filename);
2155 /* compute position (relative time) */
2156 if (find_info_tag(buf, sizeof(buf), "date", info)) {
2157 stream_pos = parse_date(buf, 1);
2158 if (stream_pos == INT64_MIN)
2163 if (input_filename[0] == '\0')
2167 if ((ret = av_open_input_file(&s, input_filename, c->stream->ifmt,
2168 buf_size, c->stream->ap_in)) < 0) {
2169 http_log("could not open %s: %d\n", input_filename, ret);
2172 s->flags |= AVFMT_FLAG_GENPTS;
2174 if (strcmp(s->iformat->name, "ffm") && av_find_stream_info(c->fmt_in) < 0) {
2175 http_log("Could not find stream info '%s'\n", input_filename);
2176 av_close_input_file(s);
2180 /* open each parser */
2181 for(i=0;i<s->nb_streams;i++)
2184 /* choose stream as clock source (we favorize video stream if
2185 present) for packet sending */
2186 c->pts_stream_index = 0;
2187 for(i=0;i<c->stream->nb_streams;i++) {
2188 if (c->pts_stream_index == 0 &&
2189 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2190 c->pts_stream_index = i;
2195 if (c->fmt_in->iformat->read_seek)
2196 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2198 /* set the start time (needed for maxtime and RTP packet timing) */
2199 c->start_time = cur_time;
2200 c->first_pts = AV_NOPTS_VALUE;
2204 /* return the server clock (in us) */
2205 static int64_t get_server_clock(HTTPContext *c)
2207 /* compute current pts value from system time */
2208 return (cur_time - c->start_time) * 1000;
2211 /* return the estimated time at which the current packet must be sent
2213 static int64_t get_packet_send_clock(HTTPContext *c)
2215 int bytes_left, bytes_sent, frame_bytes;
2217 frame_bytes = c->cur_frame_bytes;
2218 if (frame_bytes <= 0)
2221 bytes_left = c->buffer_end - c->buffer_ptr;
2222 bytes_sent = frame_bytes - bytes_left;
2223 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2228 static int http_prepare_data(HTTPContext *c)
2231 AVFormatContext *ctx;
2233 av_freep(&c->pb_buffer);
2235 case HTTPSTATE_SEND_DATA_HEADER:
2236 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2237 av_metadata_set2(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2238 av_metadata_set2(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2239 av_metadata_set2(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2240 av_metadata_set2(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2242 for(i=0;i<c->stream->nb_streams;i++) {
2245 st = av_mallocz(sizeof(AVStream));
2246 c->fmt_ctx.streams[i] = st;
2247 /* if file or feed, then just take streams from FFStream struct */
2248 if (!c->stream->feed ||
2249 c->stream->feed == c->stream)
2250 src = c->stream->streams[i];
2252 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2256 st->codec->frame_number = 0; /* XXX: should be done in
2257 AVStream, not in codec */
2259 /* set output format parameters */
2260 c->fmt_ctx.oformat = c->stream->fmt;
2261 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2263 c->got_key_frame = 0;
2265 /* prepare header and save header data in a stream */
2266 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2267 /* XXX: potential leak */
2270 c->fmt_ctx.pb->is_streamed = 1;
2273 * HACK to avoid mpeg ps muxer to spit many underflow errors
2274 * Default value from FFmpeg
2275 * Try to set it use configuration option
2277 c->fmt_ctx.preload = (int)(0.5*AV_TIME_BASE);
2278 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2280 av_set_parameters(&c->fmt_ctx, NULL);
2281 if (av_write_header(&c->fmt_ctx) < 0) {
2282 http_log("Error writing output header\n");
2285 av_metadata_free(&c->fmt_ctx.metadata);
2287 len = url_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2288 c->buffer_ptr = c->pb_buffer;
2289 c->buffer_end = c->pb_buffer + len;
2291 c->state = HTTPSTATE_SEND_DATA;
2292 c->last_packet_sent = 0;
2294 case HTTPSTATE_SEND_DATA:
2295 /* find a new packet */
2296 /* read a packet from the input stream */
2297 if (c->stream->feed)
2298 ffm_set_write_index(c->fmt_in,
2299 c->stream->feed->feed_write_index,
2300 c->stream->feed->feed_size);
2302 if (c->stream->max_time &&
2303 c->stream->max_time + c->start_time - cur_time < 0)
2304 /* We have timed out */
2305 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2309 if (av_read_frame(c->fmt_in, &pkt) < 0) {
2310 if (c->stream->feed && c->stream->feed->feed_opened) {
2311 /* if coming from feed, it means we reached the end of the
2312 ffm file, so must wait for more data */
2313 c->state = HTTPSTATE_WAIT_FEED;
2314 return 1; /* state changed */
2316 if (c->stream->loop) {
2317 av_close_input_file(c->fmt_in);
2319 if (open_input_stream(c, "") < 0)
2324 /* must send trailer now because eof or error */
2325 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2329 int source_index = pkt.stream_index;
2330 /* update first pts if needed */
2331 if (c->first_pts == AV_NOPTS_VALUE) {
2332 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2333 c->start_time = cur_time;
2335 /* send it to the appropriate stream */
2336 if (c->stream->feed) {
2337 /* if coming from a feed, select the right stream */
2338 if (c->switch_pending) {
2339 c->switch_pending = 0;
2340 for(i=0;i<c->stream->nb_streams;i++) {
2341 if (c->switch_feed_streams[i] == pkt.stream_index)
2342 if (pkt.flags & AV_PKT_FLAG_KEY)
2343 do_switch_stream(c, i);
2344 if (c->switch_feed_streams[i] >= 0)
2345 c->switch_pending = 1;
2348 for(i=0;i<c->stream->nb_streams;i++) {
2349 if (c->stream->feed_streams[i] == pkt.stream_index) {
2350 AVStream *st = c->fmt_in->streams[source_index];
2351 pkt.stream_index = i;
2352 if (pkt.flags & AV_PKT_FLAG_KEY &&
2353 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2354 c->stream->nb_streams == 1))
2355 c->got_key_frame = 1;
2356 if (!c->stream->send_on_key || c->got_key_frame)
2361 AVCodecContext *codec;
2362 AVStream *ist, *ost;
2364 ist = c->fmt_in->streams[source_index];
2365 /* specific handling for RTP: we use several
2366 output stream (one for each RTP
2367 connection). XXX: need more abstract handling */
2368 if (c->is_packetized) {
2369 /* compute send time and duration */
2370 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2371 if (ist->start_time != AV_NOPTS_VALUE)
2372 c->cur_pts -= av_rescale_q(ist->start_time, ist->time_base, AV_TIME_BASE_Q);
2373 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2374 /* find RTP context */
2375 c->packet_stream_index = pkt.stream_index;
2376 ctx = c->rtp_ctx[c->packet_stream_index];
2378 av_free_packet(&pkt);
2381 codec = ctx->streams[0]->codec;
2382 /* only one stream per RTP connection */
2383 pkt.stream_index = 0;
2387 codec = ctx->streams[pkt.stream_index]->codec;
2390 if (c->is_packetized) {
2391 int max_packet_size;
2392 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2393 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2395 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
2396 ret = url_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2398 ret = url_open_dyn_buf(&ctx->pb);
2401 /* XXX: potential leak */
2404 ost = ctx->streams[pkt.stream_index];
2406 ctx->pb->is_streamed = 1;
2407 if (pkt.dts != AV_NOPTS_VALUE)
2408 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2409 if (pkt.pts != AV_NOPTS_VALUE)
2410 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2411 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2412 if (av_write_frame(ctx, &pkt) < 0) {
2413 http_log("Error writing frame to output\n");
2414 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2417 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2418 c->cur_frame_bytes = len;
2419 c->buffer_ptr = c->pb_buffer;
2420 c->buffer_end = c->pb_buffer + len;
2422 codec->frame_number++;
2424 av_free_packet(&pkt);
2428 av_free_packet(&pkt);
2433 case HTTPSTATE_SEND_DATA_TRAILER:
2434 /* last packet test ? */
2435 if (c->last_packet_sent || c->is_packetized)
2438 /* prepare header */
2439 if (url_open_dyn_buf(&ctx->pb) < 0) {
2440 /* XXX: potential leak */
2443 c->fmt_ctx.pb->is_streamed = 1;
2444 av_write_trailer(ctx);
2445 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2446 c->buffer_ptr = c->pb_buffer;
2447 c->buffer_end = c->pb_buffer + len;
2449 c->last_packet_sent = 1;
2455 /* should convert the format at the same time */
2456 /* send data starting at c->buffer_ptr to the output connection
2457 (either UDP or TCP connection) */
2458 static int http_send_data(HTTPContext *c)
2463 if (c->buffer_ptr >= c->buffer_end) {
2464 ret = http_prepare_data(c);
2468 /* state change requested */
2471 if (c->is_packetized) {
2472 /* RTP data output */
2473 len = c->buffer_end - c->buffer_ptr;
2475 /* fail safe - should never happen */
2477 c->buffer_ptr = c->buffer_end;
2480 len = (c->buffer_ptr[0] << 24) |
2481 (c->buffer_ptr[1] << 16) |
2482 (c->buffer_ptr[2] << 8) |
2484 if (len > (c->buffer_end - c->buffer_ptr))
2486 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2487 /* nothing to send yet: we can wait */
2491 c->data_count += len;
2492 update_datarate(&c->datarate, c->data_count);
2494 c->stream->bytes_served += len;
2496 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2497 /* RTP packets are sent inside the RTSP TCP connection */
2499 int interleaved_index, size;
2501 HTTPContext *rtsp_c;
2504 /* if no RTSP connection left, error */
2507 /* if already sending something, then wait. */
2508 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2510 if (url_open_dyn_buf(&pb) < 0)
2512 interleaved_index = c->packet_stream_index * 2;
2513 /* RTCP packets are sent at odd indexes */
2514 if (c->buffer_ptr[1] == 200)
2515 interleaved_index++;
2516 /* write RTSP TCP header */
2518 header[1] = interleaved_index;
2519 header[2] = len >> 8;
2521 put_buffer(pb, header, 4);
2522 /* write RTP packet data */
2524 put_buffer(pb, c->buffer_ptr, len);
2525 size = url_close_dyn_buf(pb, &c->packet_buffer);
2526 /* prepare asynchronous TCP sending */
2527 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2528 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2529 c->buffer_ptr += len;
2531 /* send everything we can NOW */
2532 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2533 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2535 rtsp_c->packet_buffer_ptr += len;
2536 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2537 /* if we could not send all the data, we will
2538 send it later, so a new state is needed to
2539 "lock" the RTSP TCP connection */
2540 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2543 /* all data has been sent */
2544 av_freep(&c->packet_buffer);
2546 /* send RTP packet directly in UDP */
2548 url_write(c->rtp_handles[c->packet_stream_index],
2549 c->buffer_ptr, len);
2550 c->buffer_ptr += len;
2551 /* here we continue as we can send several packets per 10 ms slot */
2554 /* TCP data output */
2555 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2557 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2558 ff_neterrno() != FF_NETERROR(EINTR))
2559 /* error : close connection */
2564 c->buffer_ptr += len;
2566 c->data_count += len;
2567 update_datarate(&c->datarate, c->data_count);
2569 c->stream->bytes_served += len;
2577 static int http_start_receive_data(HTTPContext *c)
2581 if (c->stream->feed_opened)
2584 /* Don't permit writing to this one */
2585 if (c->stream->readonly)
2589 fd = open(c->stream->feed_filename, O_RDWR);
2591 http_log("Error opening feeder file: %s\n", strerror(errno));
2596 if (c->stream->truncate) {
2597 /* truncate feed file */
2598 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2599 ftruncate(c->feed_fd, FFM_PACKET_SIZE);
2600 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2602 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2603 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2608 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2609 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2610 lseek(fd, 0, SEEK_SET);
2612 /* init buffer input */
2613 c->buffer_ptr = c->buffer;
2614 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2615 c->stream->feed_opened = 1;
2616 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2620 static int http_receive_data(HTTPContext *c)
2623 int len, loop_run = 0;
2625 while (c->chunked_encoding && !c->chunk_size &&
2626 c->buffer_end > c->buffer_ptr) {
2627 /* read chunk header, if present */
2628 len = recv(c->fd, c->buffer_ptr, 1, 0);
2631 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2632 ff_neterrno() != FF_NETERROR(EINTR))
2633 /* error : close connection */
2636 } else if (len == 0) {
2637 /* end of connection : close it */
2639 } else if (c->buffer_ptr - c->buffer >= 2 &&
2640 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2641 c->chunk_size = strtol(c->buffer, 0, 16);
2642 if (c->chunk_size == 0) // end of stream
2644 c->buffer_ptr = c->buffer;
2646 } else if (++loop_run > 10) {
2647 /* no chunk header, abort */
2654 if (c->buffer_end > c->buffer_ptr) {
2655 len = recv(c->fd, c->buffer_ptr,
2656 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2658 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
2659 ff_neterrno() != FF_NETERROR(EINTR))
2660 /* error : close connection */
2662 } else if (len == 0)
2663 /* end of connection : close it */
2666 c->chunk_size -= len;
2667 c->buffer_ptr += len;
2668 c->data_count += len;
2669 update_datarate(&c->datarate, c->data_count);
2673 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2674 if (c->buffer[0] != 'f' ||
2675 c->buffer[1] != 'm') {
2676 http_log("Feed stream has become desynchronized -- disconnecting\n");
2681 if (c->buffer_ptr >= c->buffer_end) {
2682 FFStream *feed = c->stream;
2683 /* a packet has been received : write it in the store, except
2685 if (c->data_count > FFM_PACKET_SIZE) {
2687 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
2688 /* XXX: use llseek or url_seek */
2689 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2690 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2691 http_log("Error writing to feed file: %s\n", strerror(errno));
2695 feed->feed_write_index += FFM_PACKET_SIZE;
2696 /* update file size */
2697 if (feed->feed_write_index > c->stream->feed_size)
2698 feed->feed_size = feed->feed_write_index;
2700 /* handle wrap around if max file size reached */
2701 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2702 feed->feed_write_index = FFM_PACKET_SIZE;
2705 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2706 http_log("Error writing index to feed file: %s\n", strerror(errno));
2710 /* wake up any waiting connections */
2711 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2712 if (c1->state == HTTPSTATE_WAIT_FEED &&
2713 c1->stream->feed == c->stream->feed)
2714 c1->state = HTTPSTATE_SEND_DATA;
2717 /* We have a header in our hands that contains useful data */
2718 AVFormatContext *s = NULL;
2720 AVInputFormat *fmt_in;
2723 /* use feed output format name to find corresponding input format */
2724 fmt_in = av_find_input_format(feed->fmt->name);
2728 url_open_buf(&pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
2729 pb->is_streamed = 1;
2731 if (av_open_input_stream(&s, pb, c->stream->feed_filename, fmt_in, NULL) < 0) {
2736 /* Now we have the actual streams */
2737 if (s->nb_streams != feed->nb_streams) {
2738 av_close_input_stream(s);
2740 http_log("Feed '%s' stream number does not match registered feed\n",
2741 c->stream->feed_filename);
2745 for (i = 0; i < s->nb_streams; i++) {
2746 AVStream *fst = feed->streams[i];
2747 AVStream *st = s->streams[i];
2748 memcpy(fst->codec, st->codec, sizeof(AVCodecContext));
2749 if (fst->codec->extradata_size) {
2750 fst->codec->extradata = av_malloc(fst->codec->extradata_size);
2751 if (!fst->codec->extradata)
2753 memcpy(fst->codec->extradata, st->codec->extradata,
2754 fst->codec->extradata_size);
2758 av_close_input_stream(s);
2761 c->buffer_ptr = c->buffer;
2766 c->stream->feed_opened = 0;
2768 /* wake up any waiting connections to stop waiting for feed */
2769 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2770 if (c1->state == HTTPSTATE_WAIT_FEED &&
2771 c1->stream->feed == c->stream->feed)
2772 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2777 /********************************************************************/
2780 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2787 switch(error_number) {
2788 case RTSP_STATUS_OK:
2791 case RTSP_STATUS_METHOD:
2792 str = "Method Not Allowed";
2794 case RTSP_STATUS_BANDWIDTH:
2795 str = "Not Enough Bandwidth";
2797 case RTSP_STATUS_SESSION:
2798 str = "Session Not Found";
2800 case RTSP_STATUS_STATE:
2801 str = "Method Not Valid in This State";
2803 case RTSP_STATUS_AGGREGATE:
2804 str = "Aggregate operation not allowed";
2806 case RTSP_STATUS_ONLY_AGGREGATE:
2807 str = "Only aggregate operation allowed";
2809 case RTSP_STATUS_TRANSPORT:
2810 str = "Unsupported transport";
2812 case RTSP_STATUS_INTERNAL:
2813 str = "Internal Server Error";
2815 case RTSP_STATUS_SERVICE:
2816 str = "Service Unavailable";
2818 case RTSP_STATUS_VERSION:
2819 str = "RTSP Version not supported";
2822 str = "Unknown Error";
2826 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2827 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2829 /* output GMT time */
2832 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2833 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2836 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2838 rtsp_reply_header(c, error_number);
2839 url_fprintf(c->pb, "\r\n");
2842 static int rtsp_parse_request(HTTPContext *c)
2844 const char *p, *p1, *p2;
2850 RTSPMessageHeader header1, *header = &header1;
2852 c->buffer_ptr[0] = '\0';
2855 get_word(cmd, sizeof(cmd), &p);
2856 get_word(url, sizeof(url), &p);
2857 get_word(protocol, sizeof(protocol), &p);
2859 av_strlcpy(c->method, cmd, sizeof(c->method));
2860 av_strlcpy(c->url, url, sizeof(c->url));
2861 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2863 if (url_open_dyn_buf(&c->pb) < 0) {
2864 /* XXX: cannot do more */
2865 c->pb = NULL; /* safety */
2869 /* check version name */
2870 if (strcmp(protocol, "RTSP/1.0") != 0) {
2871 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2875 /* parse each header line */
2876 memset(header, 0, sizeof(*header));
2877 /* skip to next line */
2878 while (*p != '\n' && *p != '\0')
2882 while (*p != '\0') {
2883 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2887 if (p2 > p && p2[-1] == '\r')
2889 /* skip empty line */
2893 if (len > sizeof(line) - 1)
2894 len = sizeof(line) - 1;
2895 memcpy(line, p, len);
2897 ff_rtsp_parse_line(header, line, NULL);
2901 /* handle sequence number */
2902 c->seq = header->seq;
2904 if (!strcmp(cmd, "DESCRIBE"))
2905 rtsp_cmd_describe(c, url);
2906 else if (!strcmp(cmd, "OPTIONS"))
2907 rtsp_cmd_options(c, url);
2908 else if (!strcmp(cmd, "SETUP"))
2909 rtsp_cmd_setup(c, url, header);
2910 else if (!strcmp(cmd, "PLAY"))
2911 rtsp_cmd_play(c, url, header);
2912 else if (!strcmp(cmd, "PAUSE"))
2913 rtsp_cmd_pause(c, url, header);
2914 else if (!strcmp(cmd, "TEARDOWN"))
2915 rtsp_cmd_teardown(c, url, header);
2917 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2920 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2921 c->pb = NULL; /* safety */
2923 /* XXX: cannot do more */
2926 c->buffer_ptr = c->pb_buffer;
2927 c->buffer_end = c->pb_buffer + len;
2928 c->state = RTSPSTATE_SEND_REPLY;
2932 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2933 struct in_addr my_ip)
2935 AVFormatContext *avc;
2936 AVStream avs[MAX_STREAMS];
2939 avc = avformat_alloc_context();
2943 av_metadata_set2(&avc->metadata, "title",
2944 stream->title[0] ? stream->title : "No Title", 0);
2945 avc->nb_streams = stream->nb_streams;
2946 if (stream->is_multicast) {
2947 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2948 inet_ntoa(stream->multicast_ip),
2949 stream->multicast_port, stream->multicast_ttl);
2951 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2954 for(i = 0; i < stream->nb_streams; i++) {
2955 avc->streams[i] = &avs[i];
2956 avc->streams[i]->codec = stream->streams[i]->codec;
2958 *pbuffer = av_mallocz(2048);
2959 avf_sdp_create(&avc, 1, *pbuffer, 2048);
2960 av_metadata_free(&avc->metadata);
2963 return strlen(*pbuffer);
2966 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2968 // rtsp_reply_header(c, RTSP_STATUS_OK);
2969 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2970 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2971 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2972 url_fprintf(c->pb, "\r\n");
2975 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2981 int content_length, len;
2982 struct sockaddr_in my_addr;
2984 /* find which url is asked */
2985 ff_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2990 for(stream = first_stream; stream != NULL; stream = stream->next) {
2991 if (!stream->is_feed &&
2992 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2993 !strcmp(path, stream->filename)) {
2997 /* no stream found */
2998 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3002 /* prepare the media description in sdp format */
3004 /* get the host IP */
3005 len = sizeof(my_addr);
3006 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3007 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3008 if (content_length < 0) {
3009 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3012 rtsp_reply_header(c, RTSP_STATUS_OK);
3013 url_fprintf(c->pb, "Content-Base: %s/\r\n", url);
3014 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
3015 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
3016 url_fprintf(c->pb, "\r\n");
3017 put_buffer(c->pb, content, content_length);
3021 static HTTPContext *find_rtp_session(const char *session_id)
3025 if (session_id[0] == '\0')
3028 for(c = first_http_ctx; c != NULL; c = c->next) {
3029 if (!strcmp(c->session_id, session_id))
3035 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3037 RTSPTransportField *th;
3040 for(i=0;i<h->nb_transports;i++) {
3041 th = &h->transports[i];
3042 if (th->lower_transport == lower_transport)
3048 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3049 RTSPMessageHeader *h)
3052 int stream_index, rtp_port, rtcp_port;
3057 RTSPTransportField *th;
3058 struct sockaddr_in dest_addr;
3059 RTSPActionServerSetup setup;
3061 /* find which url is asked */
3062 ff_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3067 /* now check each stream */
3068 for(stream = first_stream; stream != NULL; stream = stream->next) {
3069 if (!stream->is_feed &&
3070 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3071 /* accept aggregate filenames only if single stream */
3072 if (!strcmp(path, stream->filename)) {
3073 if (stream->nb_streams != 1) {
3074 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3081 for(stream_index = 0; stream_index < stream->nb_streams;
3083 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3084 stream->filename, stream_index);
3085 if (!strcmp(path, buf))
3090 /* no stream found */
3091 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3095 /* generate session id if needed */
3096 if (h->session_id[0] == '\0')
3097 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3098 av_lfg_get(&random_state), av_lfg_get(&random_state));
3100 /* find rtp session, and create it if none found */
3101 rtp_c = find_rtp_session(h->session_id);
3103 /* always prefer UDP */
3104 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3106 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3108 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3113 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3114 th->lower_transport);
3116 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3120 /* open input stream */
3121 if (open_input_stream(rtp_c, "") < 0) {
3122 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3127 /* test if stream is OK (test needed because several SETUP needs
3128 to be done for a given file) */
3129 if (rtp_c->stream != stream) {
3130 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3134 /* test if stream is already set up */
3135 if (rtp_c->rtp_ctx[stream_index]) {
3136 rtsp_reply_error(c, RTSP_STATUS_STATE);
3140 /* check transport */
3141 th = find_transport(h, rtp_c->rtp_protocol);
3142 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3143 th->client_port_min <= 0)) {
3144 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3148 /* setup default options */
3149 setup.transport_option[0] = '\0';
3150 dest_addr = rtp_c->from_addr;
3151 dest_addr.sin_port = htons(th->client_port_min);
3154 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3155 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3159 /* now everything is OK, so we can send the connection parameters */
3160 rtsp_reply_header(c, RTSP_STATUS_OK);
3162 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3164 switch(rtp_c->rtp_protocol) {
3165 case RTSP_LOWER_TRANSPORT_UDP:
3166 rtp_port = rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3167 rtcp_port = rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3168 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3169 "client_port=%d-%d;server_port=%d-%d",
3170 th->client_port_min, th->client_port_max,
3171 rtp_port, rtcp_port);
3173 case RTSP_LOWER_TRANSPORT_TCP:
3174 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3175 stream_index * 2, stream_index * 2 + 1);
3180 if (setup.transport_option[0] != '\0')
3181 url_fprintf(c->pb, ";%s", setup.transport_option);
3182 url_fprintf(c->pb, "\r\n");
3185 url_fprintf(c->pb, "\r\n");
3189 /* find an rtp connection by using the session ID. Check consistency
3191 static HTTPContext *find_rtp_session_with_url(const char *url,
3192 const char *session_id)
3200 rtp_c = find_rtp_session(session_id);
3204 /* find which url is asked */
3205 ff_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3209 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3210 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3211 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3212 rtp_c->stream->filename, s);
3213 if(!strncmp(path, buf, sizeof(buf))) {
3214 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3221 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3225 rtp_c = find_rtp_session_with_url(url, h->session_id);
3227 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3231 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3232 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3233 rtp_c->state != HTTPSTATE_READY) {
3234 rtsp_reply_error(c, RTSP_STATUS_STATE);
3238 rtp_c->state = HTTPSTATE_SEND_DATA;
3240 /* now everything is OK, so we can send the connection parameters */
3241 rtsp_reply_header(c, RTSP_STATUS_OK);
3243 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3244 url_fprintf(c->pb, "\r\n");
3247 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3251 rtp_c = find_rtp_session_with_url(url, h->session_id);
3253 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3257 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3258 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3259 rtsp_reply_error(c, RTSP_STATUS_STATE);
3263 rtp_c->state = HTTPSTATE_READY;
3264 rtp_c->first_pts = AV_NOPTS_VALUE;
3265 /* now everything is OK, so we can send the connection parameters */
3266 rtsp_reply_header(c, RTSP_STATUS_OK);
3268 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3269 url_fprintf(c->pb, "\r\n");
3272 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3275 char session_id[32];
3277 rtp_c = find_rtp_session_with_url(url, h->session_id);
3279 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3283 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
3285 /* abort the session */
3286 close_connection(rtp_c);
3288 /* now everything is OK, so we can send the connection parameters */
3289 rtsp_reply_header(c, RTSP_STATUS_OK);
3291 url_fprintf(c->pb, "Session: %s\r\n", session_id);
3292 url_fprintf(c->pb, "\r\n");
3296 /********************************************************************/
3299 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3300 FFStream *stream, const char *session_id,
3301 enum RTSPLowerTransport rtp_protocol)
3303 HTTPContext *c = NULL;
3304 const char *proto_str;
3306 /* XXX: should output a warning page when coming
3307 close to the connection limit */
3308 if (nb_connections >= nb_max_connections)
3311 /* add a new connection */
3312 c = av_mallocz(sizeof(HTTPContext));
3317 c->poll_entry = NULL;
3318 c->from_addr = *from_addr;
3319 c->buffer_size = IOBUFFER_INIT_SIZE;
3320 c->buffer = av_malloc(c->buffer_size);
3325 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3326 c->state = HTTPSTATE_READY;
3327 c->is_packetized = 1;
3328 c->rtp_protocol = rtp_protocol;
3330 /* protocol is shown in statistics */
3331 switch(c->rtp_protocol) {
3332 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3333 proto_str = "MCAST";
3335 case RTSP_LOWER_TRANSPORT_UDP:
3338 case RTSP_LOWER_TRANSPORT_TCP:
3345 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3346 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3348 current_bandwidth += stream->bandwidth;
3350 c->next = first_http_ctx;
3362 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3363 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3365 static int rtp_new_av_stream(HTTPContext *c,
3366 int stream_index, struct sockaddr_in *dest_addr,
3367 HTTPContext *rtsp_c)
3369 AVFormatContext *ctx;
3372 URLContext *h = NULL;
3374 int max_packet_size;
3376 /* now we can open the relevant output stream */
3377 ctx = avformat_alloc_context();
3380 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3382 st = av_mallocz(sizeof(AVStream));
3385 ctx->nb_streams = 1;
3386 ctx->streams[0] = st;
3388 if (!c->stream->feed ||
3389 c->stream->feed == c->stream)
3390 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3393 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3395 st->priv_data = NULL;
3397 /* build destination RTP address */
3398 ipaddr = inet_ntoa(dest_addr->sin_addr);
3400 switch(c->rtp_protocol) {
3401 case RTSP_LOWER_TRANSPORT_UDP:
3402 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3405 /* XXX: also pass as parameter to function ? */
3406 if (c->stream->is_multicast) {
3408 ttl = c->stream->multicast_ttl;
3411 snprintf(ctx->filename, sizeof(ctx->filename),
3412 "rtp://%s:%d?multicast=1&ttl=%d",
3413 ipaddr, ntohs(dest_addr->sin_port), ttl);
3415 snprintf(ctx->filename, sizeof(ctx->filename),
3416 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3419 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3421 c->rtp_handles[stream_index] = h;
3422 max_packet_size = url_get_max_packet_size(h);
3424 case RTSP_LOWER_TRANSPORT_TCP:
3427 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3433 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3434 ipaddr, ntohs(dest_addr->sin_port),
3435 c->stream->filename, stream_index, c->protocol);
3437 /* normally, no packets should be output here, but the packet size may be checked */
3438 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3439 /* XXX: close stream */
3442 av_set_parameters(ctx, NULL);
3443 if (av_write_header(ctx) < 0) {
3450 url_close_dyn_buf(ctx->pb, &dummy_buf);
3453 c->rtp_ctx[stream_index] = ctx;
3457 /********************************************************************/
3458 /* ffserver initialization */
3460 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3464 fst = av_mallocz(sizeof(AVStream));
3468 fst->codec= avcodec_alloc_context();
3469 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3470 if (codec->extradata_size) {
3471 fst->codec->extradata = av_malloc(codec->extradata_size);
3472 memcpy(fst->codec->extradata, codec->extradata,
3473 codec->extradata_size);
3476 /* live streams must use the actual feed's codec since it may be
3477 * updated later to carry extradata needed by the streams.
3481 fst->priv_data = av_mallocz(sizeof(FeedData));
3482 fst->index = stream->nb_streams;
3483 av_set_pts_info(fst, 33, 1, 90000);
3484 stream->streams[stream->nb_streams++] = fst;
3488 /* return the stream number in the feed */
3489 static int add_av_stream(FFStream *feed, AVStream *st)
3492 AVCodecContext *av, *av1;
3496 for(i=0;i<feed->nb_streams;i++) {
3497 st = feed->streams[i];
3499 if (av1->codec_id == av->codec_id &&
3500 av1->codec_type == av->codec_type &&
3501 av1->bit_rate == av->bit_rate) {
3503 switch(av->codec_type) {
3504 case AVMEDIA_TYPE_AUDIO:
3505 if (av1->channels == av->channels &&
3506 av1->sample_rate == av->sample_rate)
3509 case AVMEDIA_TYPE_VIDEO:
3510 if (av1->width == av->width &&
3511 av1->height == av->height &&
3512 av1->time_base.den == av->time_base.den &&
3513 av1->time_base.num == av->time_base.num &&
3514 av1->gop_size == av->gop_size)
3523 fst = add_av_stream1(feed, av, 0);
3526 return feed->nb_streams - 1;
3531 static void remove_stream(FFStream *stream)
3535 while (*ps != NULL) {
3543 /* specific mpeg4 handling : we extract the raw parameters */
3544 static void extract_mpeg4_header(AVFormatContext *infile)
3546 int mpeg4_count, i, size;
3552 for(i=0;i<infile->nb_streams;i++) {
3553 st = infile->streams[i];
3554 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3555 st->codec->extradata_size == 0) {
3562 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3563 while (mpeg4_count > 0) {
3564 if (av_read_packet(infile, &pkt) < 0)
3566 st = infile->streams[pkt.stream_index];
3567 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3568 st->codec->extradata_size == 0) {
3569 av_freep(&st->codec->extradata);
3570 /* fill extradata with the header */
3571 /* XXX: we make hard suppositions here ! */
3573 while (p < pkt.data + pkt.size - 4) {
3574 /* stop when vop header is found */
3575 if (p[0] == 0x00 && p[1] == 0x00 &&
3576 p[2] == 0x01 && p[3] == 0xb6) {
3577 size = p - pkt.data;
3578 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3579 st->codec->extradata = av_malloc(size);
3580 st->codec->extradata_size = size;
3581 memcpy(st->codec->extradata, pkt.data, size);
3588 av_free_packet(&pkt);
3592 /* compute the needed AVStream for each file */
3593 static void build_file_streams(void)
3595 FFStream *stream, *stream_next;
3596 AVFormatContext *infile;
3599 /* gather all streams */
3600 for(stream = first_stream; stream != NULL; stream = stream_next) {
3601 stream_next = stream->next;
3602 if (stream->stream_type == STREAM_TYPE_LIVE &&
3604 /* the stream comes from a file */
3605 /* try to open the file */
3607 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
3608 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3609 /* specific case : if transport stream output to RTP,
3610 we use a raw transport stream reader */
3611 stream->ap_in->mpeg2ts_raw = 1;
3612 stream->ap_in->mpeg2ts_compute_pcr = 1;
3615 http_log("Opening file '%s'\n", stream->feed_filename);
3616 if ((ret = av_open_input_file(&infile, stream->feed_filename,
3617 stream->ifmt, 0, stream->ap_in)) < 0) {
3618 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3619 /* remove stream (no need to spend more time on it) */
3621 remove_stream(stream);
3623 /* find all the AVStreams inside and reference them in
3625 if (av_find_stream_info(infile) < 0) {
3626 http_log("Could not find codec parameters from '%s'\n",
3627 stream->feed_filename);
3628 av_close_input_file(infile);
3631 extract_mpeg4_header(infile);
3633 for(i=0;i<infile->nb_streams;i++)
3634 add_av_stream1(stream, infile->streams[i]->codec, 1);
3636 av_close_input_file(infile);
3642 /* compute the needed AVStream for each feed */
3643 static void build_feed_streams(void)
3645 FFStream *stream, *feed;
3648 /* gather all streams */
3649 for(stream = first_stream; stream != NULL; stream = stream->next) {
3650 feed = stream->feed;
3652 if (!stream->is_feed) {
3653 /* we handle a stream coming from a feed */
3654 for(i=0;i<stream->nb_streams;i++)
3655 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3660 /* gather all streams */
3661 for(stream = first_stream; stream != NULL; stream = stream->next) {
3662 feed = stream->feed;
3664 if (stream->is_feed) {
3665 for(i=0;i<stream->nb_streams;i++)
3666 stream->feed_streams[i] = i;
3671 /* create feed files if needed */
3672 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3675 if (url_exist(feed->feed_filename)) {
3676 /* See if it matches */
3680 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3681 /* Now see if it matches */
3682 if (s->nb_streams == feed->nb_streams) {
3684 for(i=0;i<s->nb_streams;i++) {
3686 sf = feed->streams[i];
3689 if (sf->index != ss->index ||
3691 http_log("Index & Id do not match for stream %d (%s)\n",
3692 i, feed->feed_filename);
3695 AVCodecContext *ccf, *ccs;
3699 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3701 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3702 http_log("Codecs do not match for stream %d\n", i);
3704 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3705 http_log("Codec bitrates do not match for stream %d\n", i);
3707 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3708 if (CHECK_CODEC(time_base.den) ||
3709 CHECK_CODEC(time_base.num) ||
3710 CHECK_CODEC(width) ||
3711 CHECK_CODEC(height)) {
3712 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3715 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3716 if (CHECK_CODEC(sample_rate) ||
3717 CHECK_CODEC(channels) ||
3718 CHECK_CODEC(frame_size)) {
3719 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3723 http_log("Unknown codec type\n");
3731 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3732 feed->feed_filename, s->nb_streams, feed->nb_streams);
3734 av_close_input_file(s);
3736 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3737 feed->feed_filename);
3740 if (feed->readonly) {
3741 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3742 feed->feed_filename);
3745 unlink(feed->feed_filename);
3748 if (!url_exist(feed->feed_filename)) {
3749 AVFormatContext s1 = {0}, *s = &s1;
3751 if (feed->readonly) {
3752 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3753 feed->feed_filename);
3757 /* only write the header of the ffm file */
3758 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
3759 http_log("Could not open output feed file '%s'\n",
3760 feed->feed_filename);
3763 s->oformat = feed->fmt;
3764 s->nb_streams = feed->nb_streams;
3765 for(i=0;i<s->nb_streams;i++) {
3767 st = feed->streams[i];
3770 av_set_parameters(s, NULL);
3771 if (av_write_header(s) < 0) {
3772 http_log("Container doesn't supports the required parameters\n");
3775 /* XXX: need better api */
3776 av_freep(&s->priv_data);
3779 /* get feed size and write index */
3780 fd = open(feed->feed_filename, O_RDONLY);
3782 http_log("Could not open output feed file '%s'\n",
3783 feed->feed_filename);
3787 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3788 feed->feed_size = lseek(fd, 0, SEEK_END);
3789 /* ensure that we do not wrap before the end of file */
3790 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3791 feed->feed_max_size = feed->feed_size;
3797 /* compute the bandwidth used by each stream */
3798 static void compute_bandwidth(void)
3804 for(stream = first_stream; stream != NULL; stream = stream->next) {
3806 for(i=0;i<stream->nb_streams;i++) {
3807 AVStream *st = stream->streams[i];
3808 switch(st->codec->codec_type) {
3809 case AVMEDIA_TYPE_AUDIO:
3810 case AVMEDIA_TYPE_VIDEO:
3811 bandwidth += st->codec->bit_rate;
3817 stream->bandwidth = (bandwidth + 999) / 1000;
3821 /* add a codec and set the default parameters */
3822 static void add_codec(FFStream *stream, AVCodecContext *av)
3826 /* compute default parameters */
3827 switch(av->codec_type) {
3828 case AVMEDIA_TYPE_AUDIO:
3829 if (av->bit_rate == 0)
3830 av->bit_rate = 64000;
3831 if (av->sample_rate == 0)
3832 av->sample_rate = 22050;
3833 if (av->channels == 0)
3836 case AVMEDIA_TYPE_VIDEO:
3837 if (av->bit_rate == 0)
3838 av->bit_rate = 64000;
3839 if (av->time_base.num == 0){
3840 av->time_base.den = 5;
3841 av->time_base.num = 1;
3843 if (av->width == 0 || av->height == 0) {
3847 /* Bitrate tolerance is less for streaming */
3848 if (av->bit_rate_tolerance == 0)
3849 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3850 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3855 if (av->max_qdiff == 0)
3857 av->qcompress = 0.5;
3860 if (!av->nsse_weight)
3861 av->nsse_weight = 8;
3863 av->frame_skip_cmp = FF_CMP_DCTMAX;
3865 av->me_method = ME_EPZS;
3866 av->rc_buffer_aggressivity = 1.0;
3869 av->rc_eq = "tex^qComp";
3870 if (!av->i_quant_factor)
3871 av->i_quant_factor = -0.8;
3872 if (!av->b_quant_factor)
3873 av->b_quant_factor = 1.25;
3874 if (!av->b_quant_offset)
3875 av->b_quant_offset = 1.25;
3876 if (!av->rc_max_rate)
3877 av->rc_max_rate = av->bit_rate * 2;
3879 if (av->rc_max_rate && !av->rc_buffer_size) {
3880 av->rc_buffer_size = av->rc_max_rate;
3889 st = av_mallocz(sizeof(AVStream));
3892 st->codec = avcodec_alloc_context();
3893 stream->streams[stream->nb_streams++] = st;
3894 memcpy(st->codec, av, sizeof(AVCodecContext));
3897 static enum CodecID opt_audio_codec(const char *arg)
3899 AVCodec *p= avcodec_find_encoder_by_name(arg);
3901 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3902 return CODEC_ID_NONE;
3907 static enum CodecID opt_video_codec(const char *arg)
3909 AVCodec *p= avcodec_find_encoder_by_name(arg);
3911 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3912 return CODEC_ID_NONE;
3917 /* simplistic plugin support */
3920 static void load_module(const char *filename)
3923 void (*init_func)(void);
3924 dll = dlopen(filename, RTLD_NOW);
3926 fprintf(stderr, "Could not load module '%s' - %s\n",
3927 filename, dlerror());
3931 init_func = dlsym(dll, "ffserver_module_init");
3934 "%s: init function 'ffserver_module_init()' not found\n",
3943 static int ffserver_opt_default(const char *opt, const char *arg,
3944 AVCodecContext *avctx, int type)
3947 const AVOption *o = av_find_opt(avctx, opt, NULL, type, type);
3949 ret = av_set_string3(avctx, opt, arg, 1, NULL);
3953 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
3954 const char *mime_type)
3956 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
3959 AVOutputFormat *stream_fmt;
3960 char stream_format_name[64];
3962 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
3963 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
3972 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
3976 fprintf(stderr, "%s:%d: ", filename, line_num);
3977 vfprintf(stderr, fmt, vl);
3983 static int parse_ffconfig(const char *filename)
3990 int val, errors, line_num;
3991 FFStream **last_stream, *stream, *redirect;
3992 FFStream **last_feed, *feed, *s;
3993 AVCodecContext audio_enc, video_enc;
3994 enum CodecID audio_id, video_id;
3996 f = fopen(filename, "r");
4004 first_stream = NULL;
4005 last_stream = &first_stream;
4007 last_feed = &first_feed;
4011 audio_id = CODEC_ID_NONE;
4012 video_id = CODEC_ID_NONE;
4014 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4016 if (fgets(line, sizeof(line), f) == NULL)
4022 if (*p == '\0' || *p == '#')
4025 get_arg(cmd, sizeof(cmd), &p);
4027 if (!strcasecmp(cmd, "Port")) {
4028 get_arg(arg, sizeof(arg), &p);
4030 if (val < 1 || val > 65536) {
4031 ERROR("Invalid_port: %s\n", arg);
4033 my_http_addr.sin_port = htons(val);
4034 } else if (!strcasecmp(cmd, "BindAddress")) {
4035 get_arg(arg, sizeof(arg), &p);
4036 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4037 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4039 } else if (!strcasecmp(cmd, "NoDaemon")) {
4040 ffserver_daemon = 0;
4041 } else if (!strcasecmp(cmd, "RTSPPort")) {
4042 get_arg(arg, sizeof(arg), &p);
4044 if (val < 1 || val > 65536) {
4045 ERROR("%s:%d: Invalid port: %s\n", arg);
4047 my_rtsp_addr.sin_port = htons(atoi(arg));
4048 } else if (!strcasecmp(cmd, "RTSPBindAddress")) {
4049 get_arg(arg, sizeof(arg), &p);
4050 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4051 ERROR("Invalid host/IP address: %s\n", arg);
4053 } else if (!strcasecmp(cmd, "MaxHTTPConnections")) {
4054 get_arg(arg, sizeof(arg), &p);
4056 if (val < 1 || val > 65536) {
4057 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4059 nb_max_http_connections = val;
4060 } else if (!strcasecmp(cmd, "MaxClients")) {
4061 get_arg(arg, sizeof(arg), &p);
4063 if (val < 1 || val > nb_max_http_connections) {
4064 ERROR("Invalid MaxClients: %s\n", arg);
4066 nb_max_connections = val;
4068 } else if (!strcasecmp(cmd, "MaxBandwidth")) {
4070 get_arg(arg, sizeof(arg), &p);
4072 if (llval < 10 || llval > 10000000) {
4073 ERROR("Invalid MaxBandwidth: %s\n", arg);
4075 max_bandwidth = llval;
4076 } else if (!strcasecmp(cmd, "CustomLog")) {
4077 if (!ffserver_debug)
4078 get_arg(logfilename, sizeof(logfilename), &p);
4079 } else if (!strcasecmp(cmd, "<Feed")) {
4080 /*********************************************/
4081 /* Feed related options */
4083 if (stream || feed) {
4084 ERROR("Already in a tag\n");
4086 feed = av_mallocz(sizeof(FFStream));
4087 get_arg(feed->filename, sizeof(feed->filename), &p);
4088 q = strrchr(feed->filename, '>');
4092 for (s = first_feed; s; s = s->next) {
4093 if (!strcmp(feed->filename, s->filename)) {
4094 ERROR("Feed '%s' already registered\n", s->filename);
4098 feed->fmt = av_guess_format("ffm", NULL, NULL);
4099 /* defaut feed file */
4100 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4101 "/tmp/%s.ffm", feed->filename);
4102 feed->feed_max_size = 5 * 1024 * 1024;
4104 feed->feed = feed; /* self feeding :-) */
4106 /* add in stream list */
4107 *last_stream = feed;
4108 last_stream = &feed->next;
4109 /* add in feed list */
4111 last_feed = &feed->next_feed;
4113 } else if (!strcasecmp(cmd, "Launch")) {
4117 feed->child_argv = av_mallocz(64 * sizeof(char *));
4119 for (i = 0; i < 62; i++) {
4120 get_arg(arg, sizeof(arg), &p);
4124 feed->child_argv[i] = av_strdup(arg);
4127 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4129 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4131 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4132 inet_ntoa(my_http_addr.sin_addr),
4133 ntohs(my_http_addr.sin_port), feed->filename);
4135 } else if (!strcasecmp(cmd, "ReadOnlyFile")) {
4137 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4139 } else if (stream) {
4140 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4142 } else if (!strcasecmp(cmd, "File")) {
4144 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4146 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4147 } else if (!strcasecmp(cmd, "Truncate")) {
4149 get_arg(arg, sizeof(arg), &p);
4150 feed->truncate = strtod(arg, NULL);
4152 } else if (!strcasecmp(cmd, "FileMaxSize")) {
4157 get_arg(arg, sizeof(arg), &p);
4159 fsize = strtod(p1, &p1);
4160 switch(toupper(*p1)) {
4165 fsize *= 1024 * 1024;
4168 fsize *= 1024 * 1024 * 1024;
4171 feed->feed_max_size = (int64_t)fsize;
4172 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4173 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4176 } else if (!strcasecmp(cmd, "</Feed>")) {
4178 ERROR("No corresponding <Feed> for </Feed>\n");
4181 } else if (!strcasecmp(cmd, "<Stream")) {
4182 /*********************************************/
4183 /* Stream related options */
4185 if (stream || feed) {
4186 ERROR("Already in a tag\n");
4189 stream = av_mallocz(sizeof(FFStream));
4190 get_arg(stream->filename, sizeof(stream->filename), &p);
4191 q = strrchr(stream->filename, '>');
4195 for (s = first_stream; s; s = s->next) {
4196 if (!strcmp(stream->filename, s->filename)) {
4197 ERROR("Stream '%s' already registered\n", s->filename);
4201 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4202 avcodec_get_context_defaults2(&video_enc, AVMEDIA_TYPE_VIDEO);
4203 avcodec_get_context_defaults2(&audio_enc, AVMEDIA_TYPE_AUDIO);
4204 audio_id = CODEC_ID_NONE;
4205 video_id = CODEC_ID_NONE;
4207 audio_id = stream->fmt->audio_codec;
4208 video_id = stream->fmt->video_codec;
4211 *last_stream = stream;
4212 last_stream = &stream->next;
4214 } else if (!strcasecmp(cmd, "Feed")) {
4215 get_arg(arg, sizeof(arg), &p);
4220 while (sfeed != NULL) {
4221 if (!strcmp(sfeed->filename, arg))
4223 sfeed = sfeed->next_feed;
4226 ERROR("feed '%s' not defined\n", arg);
4228 stream->feed = sfeed;
4230 } else if (!strcasecmp(cmd, "Format")) {
4231 get_arg(arg, sizeof(arg), &p);
4233 if (!strcmp(arg, "status")) {
4234 stream->stream_type = STREAM_TYPE_STATUS;
4237 stream->stream_type = STREAM_TYPE_LIVE;
4238 /* jpeg cannot be used here, so use single frame jpeg */
4239 if (!strcmp(arg, "jpeg"))
4240 strcpy(arg, "mjpeg");
4241 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4243 ERROR("Unknown Format: %s\n", arg);
4247 audio_id = stream->fmt->audio_codec;
4248 video_id = stream->fmt->video_codec;
4251 } else if (!strcasecmp(cmd, "InputFormat")) {
4252 get_arg(arg, sizeof(arg), &p);
4254 stream->ifmt = av_find_input_format(arg);
4255 if (!stream->ifmt) {
4256 ERROR("Unknown input format: %s\n", arg);
4259 } else if (!strcasecmp(cmd, "FaviconURL")) {
4260 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4261 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4263 ERROR("FaviconURL only permitted for status streams\n");
4265 } else if (!strcasecmp(cmd, "Author")) {
4267 get_arg(stream->author, sizeof(stream->author), &p);
4268 } else if (!strcasecmp(cmd, "Comment")) {
4270 get_arg(stream->comment, sizeof(stream->comment), &p);
4271 } else if (!strcasecmp(cmd, "Copyright")) {
4273 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4274 } else if (!strcasecmp(cmd, "Title")) {
4276 get_arg(stream->title, sizeof(stream->title), &p);
4277 } else if (!strcasecmp(cmd, "Preroll")) {
4278 get_arg(arg, sizeof(arg), &p);
4280 stream->prebuffer = atof(arg) * 1000;
4281 } else if (!strcasecmp(cmd, "StartSendOnKey")) {
4283 stream->send_on_key = 1;
4284 } else if (!strcasecmp(cmd, "AudioCodec")) {
4285 get_arg(arg, sizeof(arg), &p);
4286 audio_id = opt_audio_codec(arg);
4287 if (audio_id == CODEC_ID_NONE) {
4288 ERROR("Unknown AudioCodec: %s\n", arg);
4290 } else if (!strcasecmp(cmd, "VideoCodec")) {
4291 get_arg(arg, sizeof(arg), &p);
4292 video_id = opt_video_codec(arg);
4293 if (video_id == CODEC_ID_NONE) {
4294 ERROR("Unknown VideoCodec: %s\n", arg);
4296 } else if (!strcasecmp(cmd, "MaxTime")) {
4297 get_arg(arg, sizeof(arg), &p);
4299 stream->max_time = atof(arg) * 1000;
4300 } else if (!strcasecmp(cmd, "AudioBitRate")) {
4301 get_arg(arg, sizeof(arg), &p);
4303 audio_enc.bit_rate = atoi(arg) * 1000;
4304 } else if (!strcasecmp(cmd, "AudioChannels")) {
4305 get_arg(arg, sizeof(arg), &p);
4307 audio_enc.channels = atoi(arg);
4308 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
4309 get_arg(arg, sizeof(arg), &p);
4311 audio_enc.sample_rate = atoi(arg);
4312 } else if (!strcasecmp(cmd, "AudioQuality")) {
4313 get_arg(arg, sizeof(arg), &p);
4315 // audio_enc.quality = atof(arg) * 1000;
4317 } else if (!strcasecmp(cmd, "VideoBitRateRange")) {
4319 int minrate, maxrate;
4321 get_arg(arg, sizeof(arg), &p);
4323 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4324 video_enc.rc_min_rate = minrate * 1000;
4325 video_enc.rc_max_rate = maxrate * 1000;
4327 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4330 } else if (!strcasecmp(cmd, "Debug")) {
4332 get_arg(arg, sizeof(arg), &p);
4333 video_enc.debug = strtol(arg,0,0);
4335 } else if (!strcasecmp(cmd, "Strict")) {
4337 get_arg(arg, sizeof(arg), &p);
4338 video_enc.strict_std_compliance = atoi(arg);
4340 } else if (!strcasecmp(cmd, "VideoBufferSize")) {
4342 get_arg(arg, sizeof(arg), &p);
4343 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4345 } else if (!strcasecmp(cmd, "VideoBitRateTolerance")) {
4347 get_arg(arg, sizeof(arg), &p);
4348 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4350 } else if (!strcasecmp(cmd, "VideoBitRate")) {
4351 get_arg(arg, sizeof(arg), &p);
4353 video_enc.bit_rate = atoi(arg) * 1000;
4355 } else if (!strcasecmp(cmd, "VideoSize")) {
4356 get_arg(arg, sizeof(arg), &p);
4358 av_parse_video_frame_size(&video_enc.width, &video_enc.height, arg);
4359 if ((video_enc.width % 16) != 0 ||
4360 (video_enc.height % 16) != 0) {
4361 ERROR("Image size must be a multiple of 16\n");
4364 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
4365 get_arg(arg, sizeof(arg), &p);
4367 AVRational frame_rate;
4368 if (av_parse_video_frame_rate(&frame_rate, arg) < 0) {
4369 ERROR("Incorrect frame rate: %s\n", arg);
4371 video_enc.time_base.num = frame_rate.den;
4372 video_enc.time_base.den = frame_rate.num;
4375 } else if (!strcasecmp(cmd, "VideoGopSize")) {
4376 get_arg(arg, sizeof(arg), &p);
4378 video_enc.gop_size = atoi(arg);
4379 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
4381 video_enc.gop_size = 1;
4382 } else if (!strcasecmp(cmd, "VideoHighQuality")) {
4384 video_enc.mb_decision = FF_MB_DECISION_BITS;
4385 } else if (!strcasecmp(cmd, "Video4MotionVector")) {
4387 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4388 video_enc.flags |= CODEC_FLAG_4MV;
4390 } else if (!strcasecmp(cmd, "AVOptionVideo") ||
4391 !strcasecmp(cmd, "AVOptionAudio")) {
4393 AVCodecContext *avctx;
4395 get_arg(arg, sizeof(arg), &p);
4396 get_arg(arg2, sizeof(arg2), &p);
4397 if (!strcasecmp(cmd, "AVOptionVideo")) {
4399 type = AV_OPT_FLAG_VIDEO_PARAM;
4402 type = AV_OPT_FLAG_AUDIO_PARAM;
4404 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4405 ERROR("AVOption error: %s %s\n", arg, arg2);
4407 } else if (!strcasecmp(cmd, "VideoTag")) {
4408 get_arg(arg, sizeof(arg), &p);
4409 if ((strlen(arg) == 4) && stream)
4410 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4411 } else if (!strcasecmp(cmd, "BitExact")) {
4413 video_enc.flags |= CODEC_FLAG_BITEXACT;
4414 } else if (!strcasecmp(cmd, "DctFastint")) {
4416 video_enc.dct_algo = FF_DCT_FASTINT;
4417 } else if (!strcasecmp(cmd, "IdctSimple")) {
4419 video_enc.idct_algo = FF_IDCT_SIMPLE;
4420 } else if (!strcasecmp(cmd, "Qscale")) {
4421 get_arg(arg, sizeof(arg), &p);
4423 video_enc.flags |= CODEC_FLAG_QSCALE;
4424 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4426 } else if (!strcasecmp(cmd, "VideoQDiff")) {
4427 get_arg(arg, sizeof(arg), &p);
4429 video_enc.max_qdiff = atoi(arg);
4430 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4431 ERROR("VideoQDiff out of range\n");
4434 } else if (!strcasecmp(cmd, "VideoQMax")) {
4435 get_arg(arg, sizeof(arg), &p);
4437 video_enc.qmax = atoi(arg);
4438 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4439 ERROR("VideoQMax out of range\n");
4442 } else if (!strcasecmp(cmd, "VideoQMin")) {
4443 get_arg(arg, sizeof(arg), &p);
4445 video_enc.qmin = atoi(arg);
4446 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4447 ERROR("VideoQMin out of range\n");
4450 } else if (!strcasecmp(cmd, "LumaElim")) {
4451 get_arg(arg, sizeof(arg), &p);
4453 video_enc.luma_elim_threshold = atoi(arg);
4454 } else if (!strcasecmp(cmd, "ChromaElim")) {
4455 get_arg(arg, sizeof(arg), &p);
4457 video_enc.chroma_elim_threshold = atoi(arg);
4458 } else if (!strcasecmp(cmd, "LumiMask")) {
4459 get_arg(arg, sizeof(arg), &p);
4461 video_enc.lumi_masking = atof(arg);
4462 } else if (!strcasecmp(cmd, "DarkMask")) {
4463 get_arg(arg, sizeof(arg), &p);
4465 video_enc.dark_masking = atof(arg);
4466 } else if (!strcasecmp(cmd, "NoVideo")) {
4467 video_id = CODEC_ID_NONE;
4468 } else if (!strcasecmp(cmd, "NoAudio")) {
4469 audio_id = CODEC_ID_NONE;
4470 } else if (!strcasecmp(cmd, "ACL")) {
4471 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4472 } else if (!strcasecmp(cmd, "DynamicACL")) {
4474 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4476 } else if (!strcasecmp(cmd, "RTSPOption")) {
4477 get_arg(arg, sizeof(arg), &p);
4479 av_freep(&stream->rtsp_option);
4480 stream->rtsp_option = av_strdup(arg);
4482 } else if (!strcasecmp(cmd, "MulticastAddress")) {
4483 get_arg(arg, sizeof(arg), &p);
4485 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4486 ERROR("Invalid host/IP address: %s\n", arg);
4488 stream->is_multicast = 1;
4489 stream->loop = 1; /* default is looping */
4491 } else if (!strcasecmp(cmd, "MulticastPort")) {
4492 get_arg(arg, sizeof(arg), &p);
4494 stream->multicast_port = atoi(arg);
4495 } else if (!strcasecmp(cmd, "MulticastTTL")) {
4496 get_arg(arg, sizeof(arg), &p);
4498 stream->multicast_ttl = atoi(arg);
4499 } else if (!strcasecmp(cmd, "NoLoop")) {
4502 } else if (!strcasecmp(cmd, "</Stream>")) {
4504 ERROR("No corresponding <Stream> for </Stream>\n");
4506 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4507 if (audio_id != CODEC_ID_NONE) {
4508 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4509 audio_enc.codec_id = audio_id;
4510 add_codec(stream, &audio_enc);
4512 if (video_id != CODEC_ID_NONE) {
4513 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4514 video_enc.codec_id = video_id;
4515 add_codec(stream, &video_enc);
4520 } else if (!strcasecmp(cmd, "<Redirect")) {
4521 /*********************************************/
4523 if (stream || feed || redirect) {
4524 ERROR("Already in a tag\n");
4526 redirect = av_mallocz(sizeof(FFStream));
4527 *last_stream = redirect;
4528 last_stream = &redirect->next;
4530 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4531 q = strrchr(redirect->filename, '>');
4534 redirect->stream_type = STREAM_TYPE_REDIRECT;
4536 } else if (!strcasecmp(cmd, "URL")) {
4538 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4539 } else if (!strcasecmp(cmd, "</Redirect>")) {
4541 ERROR("No corresponding <Redirect> for </Redirect>\n");
4543 if (!redirect->feed_filename[0]) {
4544 ERROR("No URL found for <Redirect>\n");
4548 } else if (!strcasecmp(cmd, "LoadModule")) {
4549 get_arg(arg, sizeof(arg), &p);
4553 ERROR("Module support not compiled into this version: '%s'\n", arg);
4556 ERROR("Incorrect keyword: '%s'\n", cmd);
4568 static void handle_child_exit(int sig)
4573 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4576 for (feed = first_feed; feed; feed = feed->next) {
4577 if (feed->pid == pid) {
4578 int uptime = time(0) - feed->pid_start;
4581 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4584 /* Turn off any more restarts */
4585 feed->child_argv = 0;
4590 need_to_start_children = 1;
4593 static void opt_debug(void)
4596 ffserver_daemon = 0;
4597 logfilename[0] = '-';
4600 static void show_help(void)
4602 printf("usage: ffserver [options]\n"
4603 "Hyper fast multi format Audio/Video streaming server\n");
4605 show_help_options(options, "Main options:\n", 0, 0);
4608 static const OptionDef options[] = {
4609 #include "cmdutils_common_opts.h"
4610 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4611 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4612 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4616 int main(int argc, char **argv)
4618 struct sigaction sigact;
4624 my_program_name = argv[0];
4625 my_program_dir = getcwd(0, 0);
4626 ffserver_daemon = 1;
4628 parse_options(argc, argv, options, NULL);
4630 unsetenv("http_proxy"); /* Kill the http_proxy */
4632 av_lfg_init(&random_state, av_get_random_seed());
4634 memset(&sigact, 0, sizeof(sigact));
4635 sigact.sa_handler = handle_child_exit;
4636 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4637 sigaction(SIGCHLD, &sigact, 0);
4639 if (parse_ffconfig(config_filename) < 0) {
4640 fprintf(stderr, "Incorrect config file - exiting.\n");
4644 /* open log file if needed */
4645 if (logfilename[0] != '\0') {
4646 if (!strcmp(logfilename, "-"))
4649 logfile = fopen(logfilename, "a");
4650 av_log_set_callback(http_av_log);
4653 build_file_streams();
4655 build_feed_streams();
4657 compute_bandwidth();
4659 /* put the process in background and detach it from its TTY */
4660 if (ffserver_daemon) {
4667 } else if (pid > 0) {
4674 open("/dev/null", O_RDWR);
4675 if (strcmp(logfilename, "-") != 0) {
4685 signal(SIGPIPE, SIG_IGN);
4687 if (ffserver_daemon)
4690 if (http_server() < 0) {
4691 http_log("Could not start server\n");