2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multiple format streaming server based on the FFmpeg libraries
28 #define closesocket close
32 #include "libavformat/avformat.h"
33 // FIXME those are internal headers, avserver _really_ shouldn't use them
34 #include "libavformat/ffm.h"
35 #include "libavformat/network.h"
36 #include "libavformat/os_support.h"
37 #include "libavformat/rtpdec.h"
38 #include "libavformat/rtsp.h"
39 #include "libavformat/avio_internal.h"
40 #include "libavformat/internal.h"
41 #include "libavformat/url.h"
43 #include "libavutil/avstring.h"
44 #include "libavutil/lfg.h"
45 #include "libavutil/dict.h"
46 #include "libavutil/mathematics.h"
47 #include "libavutil/random_seed.h"
48 #include "libavutil/parseutils.h"
49 #include "libavutil/opt.h"
53 #include <sys/ioctl.h>
68 const char program_name[] = "ffserver";
69 const int program_birth_year = 2000;
71 static const OptionDef options[];
74 HTTPSTATE_WAIT_REQUEST,
75 HTTPSTATE_SEND_HEADER,
76 HTTPSTATE_SEND_DATA_HEADER,
77 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
78 HTTPSTATE_SEND_DATA_TRAILER,
79 HTTPSTATE_RECEIVE_DATA,
80 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
83 RTSPSTATE_WAIT_REQUEST,
85 RTSPSTATE_SEND_PACKET,
88 static const char *http_state[] = {
104 #define MAX_STREAMS 20
106 #define IOBUFFER_INIT_SIZE 8192
108 /* timeouts are in ms */
109 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
110 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
112 #define SYNC_TIMEOUT (10 * 1000)
114 typedef struct RTSPActionServerSetup {
116 char transport_option[512];
117 } RTSPActionServerSetup;
120 int64_t count1, count2;
121 int64_t time1, time2;
124 /* context associated with one connection */
125 typedef struct HTTPContext {
126 enum HTTPState state;
127 int fd; /* socket file descriptor */
128 struct sockaddr_in from_addr; /* origin */
129 struct pollfd *poll_entry; /* used when polling */
131 uint8_t *buffer_ptr, *buffer_end;
134 int chunked_encoding;
135 int chunk_size; /* 0 if it needs to be read */
136 struct HTTPContext *next;
137 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
141 /* input format handling */
142 AVFormatContext *fmt_in;
143 int64_t start_time; /* In milliseconds - this wraps fairly often */
144 int64_t first_pts; /* initial pts value */
145 int64_t cur_pts; /* current pts value from the stream in us */
146 int64_t cur_frame_duration; /* duration of the current frame in us */
147 int cur_frame_bytes; /* output frame size, needed to compute
148 the time at which we send each
150 int pts_stream_index; /* stream we choose as clock reference */
151 int64_t cur_clock; /* current clock reference value in us */
152 /* output format handling */
153 struct FFStream *stream;
154 /* -1 is invalid stream */
155 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
156 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
158 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
159 int last_packet_sent; /* true if last data packet was sent */
161 DataRateData datarate;
168 int is_packetized; /* if true, the stream is packetized */
169 int packet_stream_index; /* current stream for output in state machine */
171 /* RTSP state specific */
172 uint8_t *pb_buffer; /* XXX: use that in all the code */
174 int seq; /* RTSP sequence number */
176 /* RTP state specific */
177 enum RTSPLowerTransport rtp_protocol;
178 char session_id[32]; /* session id */
179 AVFormatContext *rtp_ctx[MAX_STREAMS];
181 /* RTP/UDP specific */
182 URLContext *rtp_handles[MAX_STREAMS];
184 /* RTP/TCP specific */
185 struct HTTPContext *rtsp_c;
186 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
189 /* each generated stream is described here */
193 STREAM_TYPE_REDIRECT,
196 enum IPAddressAction {
201 typedef struct IPAddressACL {
202 struct IPAddressACL *next;
203 enum IPAddressAction action;
204 /* These are in host order */
205 struct in_addr first;
209 /* description of each stream of the ffserver.conf file */
210 typedef struct FFStream {
211 enum StreamType stream_type;
212 char filename[1024]; /* stream filename */
213 struct FFStream *feed; /* feed we are using (can be null if
215 AVDictionary *in_opts; /* input parameters */
216 AVInputFormat *ifmt; /* if non NULL, force input format */
219 char dynamic_acl[1024];
221 int prebuffer; /* Number of millseconds early to start */
222 int64_t max_time; /* Number of milliseconds to run */
224 AVStream *streams[MAX_STREAMS];
225 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
226 char feed_filename[1024]; /* file name of the feed storage, or
227 input file name for a stream */
232 pid_t pid; /* Of ffmpeg process */
233 time_t pid_start; /* Of ffmpeg process */
235 struct FFStream *next;
236 unsigned bandwidth; /* bandwidth, in kbits/s */
239 /* multicast specific */
241 struct in_addr multicast_ip;
242 int multicast_port; /* first port used for multicast */
244 int loop; /* if true, send the stream in loops (only meaningful if file) */
247 int feed_opened; /* true if someone is writing to the feed */
248 int is_feed; /* true if it is a feed */
249 int readonly; /* True if writing is prohibited to the file */
250 int truncate; /* True if feeder connection truncate the feed file */
252 int64_t bytes_served;
253 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
254 int64_t feed_write_index; /* current write position in feed (it wraps around) */
255 int64_t feed_size; /* current size of feed */
256 struct FFStream *next_feed;
259 typedef struct FeedData {
260 long long data_count;
261 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
264 static struct sockaddr_in my_http_addr;
265 static struct sockaddr_in my_rtsp_addr;
267 static char logfilename[1024];
268 static HTTPContext *first_http_ctx;
269 static FFStream *first_feed; /* contains only feeds */
270 static FFStream *first_stream; /* contains all streams, including feeds */
272 static void new_connection(int server_fd, int is_rtsp);
273 static void close_connection(HTTPContext *c);
276 static int handle_connection(HTTPContext *c);
277 static int http_parse_request(HTTPContext *c);
278 static int http_send_data(HTTPContext *c);
279 static void compute_status(HTTPContext *c);
280 static int open_input_stream(HTTPContext *c, const char *info);
281 static int http_start_receive_data(HTTPContext *c);
282 static int http_receive_data(HTTPContext *c);
285 static int rtsp_parse_request(HTTPContext *c);
286 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
287 static void rtsp_cmd_options(HTTPContext *c, const char *url);
288 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
289 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
290 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
291 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
294 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
295 struct in_addr my_ip);
298 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
299 FFStream *stream, const char *session_id,
300 enum RTSPLowerTransport rtp_protocol);
301 static int rtp_new_av_stream(HTTPContext *c,
302 int stream_index, struct sockaddr_in *dest_addr,
303 HTTPContext *rtsp_c);
305 static const char *my_program_name;
306 static const char *my_program_dir;
308 static const char *config_filename = "/etc/ffserver.conf";
310 static int ffserver_debug;
311 static int ffserver_daemon;
312 static int no_launch;
313 static int need_to_start_children;
315 /* maximum number of simultaneous HTTP connections */
316 static unsigned int nb_max_http_connections = 2000;
317 static unsigned int nb_max_connections = 5;
318 static unsigned int nb_connections;
320 static uint64_t max_bandwidth = 1000;
321 static uint64_t current_bandwidth;
323 static int64_t cur_time; // Making this global saves on passing it around everywhere
325 static AVLFG random_state;
327 static FILE *logfile = NULL;
329 /* FIXME: make ffserver work with IPv6 */
330 void av_noreturn exit_program(int ret)
335 /* resolve host with also IP address parsing */
336 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
339 if (!ff_inet_aton(hostname, sin_addr)) {
341 struct addrinfo *ai, *cur;
342 struct addrinfo hints;
343 memset(&hints, 0, sizeof(hints));
344 hints.ai_family = AF_INET;
345 if (getaddrinfo(hostname, NULL, &hints, &ai))
347 /* getaddrinfo returns a linked list of addrinfo structs.
348 * Even if we set ai_family = AF_INET above, make sure
349 * that the returned one actually is of the correct type. */
350 for (cur = ai; cur; cur = cur->ai_next) {
351 if (cur->ai_family == AF_INET) {
352 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
361 hp = gethostbyname(hostname);
364 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
370 static char *ctime1(char *buf2)
378 p = buf2 + strlen(p) - 1;
384 static void http_vlog(const char *fmt, va_list vargs)
386 static int print_prefix = 1;
391 fprintf(logfile, "%s ", buf);
393 print_prefix = strstr(fmt, "\n") != NULL;
394 vfprintf(logfile, fmt, vargs);
400 __attribute__ ((format (printf, 1, 2)))
402 static void http_log(const char *fmt, ...)
405 va_start(vargs, fmt);
406 http_vlog(fmt, vargs);
410 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
412 static int print_prefix = 1;
413 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
414 if (level > av_log_get_level())
416 if (print_prefix && avc)
417 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
418 print_prefix = strstr(fmt, "\n") != NULL;
419 http_vlog(fmt, vargs);
422 static void log_connection(HTTPContext *c)
427 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
428 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
429 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
432 static void update_datarate(DataRateData *drd, int64_t count)
434 if (!drd->time1 && !drd->count1) {
435 drd->time1 = drd->time2 = cur_time;
436 drd->count1 = drd->count2 = count;
437 } else if (cur_time - drd->time2 > 5000) {
438 drd->time1 = drd->time2;
439 drd->count1 = drd->count2;
440 drd->time2 = cur_time;
445 /* In bytes per second */
446 static int compute_datarate(DataRateData *drd, int64_t count)
448 if (cur_time == drd->time1)
451 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
455 static void start_children(FFStream *feed)
460 for (; feed; feed = feed->next) {
461 if (feed->child_argv && !feed->pid) {
462 feed->pid_start = time(0);
467 http_log("Unable to create children\n");
476 av_strlcpy(pathname, my_program_name, sizeof(pathname));
478 slash = strrchr(pathname, '/');
483 strcpy(slash, "ffmpeg");
485 http_log("Launch command line: ");
486 http_log("%s ", pathname);
487 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
488 http_log("%s ", feed->child_argv[i]);
491 for (i = 3; i < 256; i++)
494 if (!ffserver_debug) {
495 i = open("/dev/null", O_RDWR);
504 /* This is needed to make relative pathnames work */
505 if (chdir(my_program_dir) < 0) {
506 http_log("chdir failed\n");
510 signal(SIGPIPE, SIG_DFL);
512 execvp(pathname, feed->child_argv);
520 /* open a listening socket */
521 static int socket_open_listen(struct sockaddr_in *my_addr)
525 server_fd = socket(AF_INET,SOCK_STREAM,0);
532 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
534 my_addr->sin_family = AF_INET;
535 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
537 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
539 closesocket(server_fd);
543 if (listen (server_fd, 5) < 0) {
545 closesocket(server_fd);
548 ff_socket_nonblock(server_fd, 1);
553 /* start all multicast streams */
554 static void start_multicast(void)
559 struct sockaddr_in dest_addr;
560 int default_port, stream_index;
563 for(stream = first_stream; stream != NULL; stream = stream->next) {
564 if (stream->is_multicast) {
565 /* open the RTP connection */
566 snprintf(session_id, sizeof(session_id), "%08x%08x",
567 av_lfg_get(&random_state), av_lfg_get(&random_state));
569 /* choose a port if none given */
570 if (stream->multicast_port == 0) {
571 stream->multicast_port = default_port;
575 dest_addr.sin_family = AF_INET;
576 dest_addr.sin_addr = stream->multicast_ip;
577 dest_addr.sin_port = htons(stream->multicast_port);
579 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
580 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
584 if (open_input_stream(rtp_c, "") < 0) {
585 http_log("Could not open input stream for stream '%s'\n",
590 /* open each RTP stream */
591 for(stream_index = 0; stream_index < stream->nb_streams;
593 dest_addr.sin_port = htons(stream->multicast_port +
595 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
596 http_log("Could not open output stream '%s/streamid=%d'\n",
597 stream->filename, stream_index);
602 /* change state to send data */
603 rtp_c->state = HTTPSTATE_SEND_DATA;
608 /* main loop of the http server */
609 static int http_server(void)
611 int server_fd = 0, rtsp_server_fd = 0;
612 int ret, delay, delay1;
613 struct pollfd *poll_table, *poll_entry;
614 HTTPContext *c, *c_next;
616 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
617 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
621 if (my_http_addr.sin_port) {
622 server_fd = socket_open_listen(&my_http_addr);
627 if (my_rtsp_addr.sin_port) {
628 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
629 if (rtsp_server_fd < 0)
633 if (!rtsp_server_fd && !server_fd) {
634 http_log("HTTP and RTSP disabled.\n");
638 http_log("FFserver started.\n");
640 start_children(first_feed);
645 poll_entry = poll_table;
647 poll_entry->fd = server_fd;
648 poll_entry->events = POLLIN;
651 if (rtsp_server_fd) {
652 poll_entry->fd = rtsp_server_fd;
653 poll_entry->events = POLLIN;
657 /* wait for events on each HTTP handle */
664 case HTTPSTATE_SEND_HEADER:
665 case RTSPSTATE_SEND_REPLY:
666 case RTSPSTATE_SEND_PACKET:
667 c->poll_entry = poll_entry;
669 poll_entry->events = POLLOUT;
672 case HTTPSTATE_SEND_DATA_HEADER:
673 case HTTPSTATE_SEND_DATA:
674 case HTTPSTATE_SEND_DATA_TRAILER:
675 if (!c->is_packetized) {
676 /* for TCP, we output as much as we can (may need to put a limit) */
677 c->poll_entry = poll_entry;
679 poll_entry->events = POLLOUT;
682 /* when ffserver is doing the timing, we work by
683 looking at which packet need to be sent every
685 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
690 case HTTPSTATE_WAIT_REQUEST:
691 case HTTPSTATE_RECEIVE_DATA:
692 case HTTPSTATE_WAIT_FEED:
693 case RTSPSTATE_WAIT_REQUEST:
694 /* need to catch errors */
695 c->poll_entry = poll_entry;
697 poll_entry->events = POLLIN;/* Maybe this will work */
701 c->poll_entry = NULL;
707 /* wait for an event on one connection. We poll at least every
708 second to handle timeouts */
710 ret = poll(poll_table, poll_entry - poll_table, delay);
711 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
712 ff_neterrno() != AVERROR(EINTR))
716 cur_time = av_gettime() / 1000;
718 if (need_to_start_children) {
719 need_to_start_children = 0;
720 start_children(first_feed);
723 /* now handle the events */
724 for(c = first_http_ctx; c != NULL; c = c_next) {
726 if (handle_connection(c) < 0) {
727 /* close and free the connection */
733 poll_entry = poll_table;
735 /* new HTTP connection request ? */
736 if (poll_entry->revents & POLLIN)
737 new_connection(server_fd, 0);
740 if (rtsp_server_fd) {
741 /* new RTSP connection request ? */
742 if (poll_entry->revents & POLLIN)
743 new_connection(rtsp_server_fd, 1);
748 /* start waiting for a new HTTP/RTSP request */
749 static void start_wait_request(HTTPContext *c, int is_rtsp)
751 c->buffer_ptr = c->buffer;
752 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
755 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
756 c->state = RTSPSTATE_WAIT_REQUEST;
758 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
759 c->state = HTTPSTATE_WAIT_REQUEST;
763 static void http_send_too_busy_reply(int fd)
766 int len = snprintf(buffer, sizeof(buffer),
767 "HTTP/1.0 503 Server too busy\r\n"
768 "Content-type: text/html\r\n"
770 "<html><head><title>Too busy</title></head><body>\r\n"
771 "<p>The server is too busy to serve your request at this time.</p>\r\n"
772 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
773 "</body></html>\r\n",
774 nb_connections, nb_max_connections);
775 send(fd, buffer, len, 0);
779 static void new_connection(int server_fd, int is_rtsp)
781 struct sockaddr_in from_addr;
783 HTTPContext *c = NULL;
785 len = sizeof(from_addr);
786 fd = accept(server_fd, (struct sockaddr *)&from_addr,
789 http_log("error during accept %s\n", strerror(errno));
792 ff_socket_nonblock(fd, 1);
794 if (nb_connections >= nb_max_connections) {
795 http_send_too_busy_reply(fd);
799 /* add a new connection */
800 c = av_mallocz(sizeof(HTTPContext));
805 c->poll_entry = NULL;
806 c->from_addr = from_addr;
807 c->buffer_size = IOBUFFER_INIT_SIZE;
808 c->buffer = av_malloc(c->buffer_size);
812 c->next = first_http_ctx;
816 start_wait_request(c, is_rtsp);
828 static void close_connection(HTTPContext *c)
830 HTTPContext **cp, *c1;
832 AVFormatContext *ctx;
836 /* remove connection from list */
837 cp = &first_http_ctx;
838 while ((*cp) != NULL) {
846 /* remove references, if any (XXX: do it faster) */
847 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
852 /* remove connection associated resources */
856 /* close each frame parser */
857 for(i=0;i<c->fmt_in->nb_streams;i++) {
858 st = c->fmt_in->streams[i];
859 if (st->codec->codec)
860 avcodec_close(st->codec);
862 avformat_close_input(&c->fmt_in);
865 /* free RTP output streams if any */
868 nb_streams = c->stream->nb_streams;
870 for(i=0;i<nb_streams;i++) {
873 av_write_trailer(ctx);
874 av_dict_free(&ctx->metadata);
875 av_free(ctx->streams[0]);
878 h = c->rtp_handles[i];
885 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
888 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
889 av_write_trailer(ctx);
890 av_freep(&c->pb_buffer);
891 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
896 for(i=0; i<ctx->nb_streams; i++)
897 av_free(ctx->streams[i]);
899 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
900 current_bandwidth -= c->stream->bandwidth;
902 /* signal that there is no feed if we are the feeder socket */
903 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
904 c->stream->feed_opened = 0;
908 av_freep(&c->pb_buffer);
909 av_freep(&c->packet_buffer);
915 static int handle_connection(HTTPContext *c)
920 case HTTPSTATE_WAIT_REQUEST:
921 case RTSPSTATE_WAIT_REQUEST:
923 if ((c->timeout - cur_time) < 0)
925 if (c->poll_entry->revents & (POLLERR | POLLHUP))
928 /* no need to read if no events */
929 if (!(c->poll_entry->revents & POLLIN))
933 len = recv(c->fd, c->buffer_ptr, 1, 0);
935 if (ff_neterrno() != AVERROR(EAGAIN) &&
936 ff_neterrno() != AVERROR(EINTR))
938 } else if (len == 0) {
941 /* search for end of request. */
943 c->buffer_ptr += len;
945 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
946 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
947 /* request found : parse it and reply */
948 if (c->state == HTTPSTATE_WAIT_REQUEST) {
949 ret = http_parse_request(c);
951 ret = rtsp_parse_request(c);
955 } else if (ptr >= c->buffer_end) {
956 /* request too long: cannot do anything */
958 } else goto read_loop;
962 case HTTPSTATE_SEND_HEADER:
963 if (c->poll_entry->revents & (POLLERR | POLLHUP))
966 /* no need to write if no events */
967 if (!(c->poll_entry->revents & POLLOUT))
969 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
971 if (ff_neterrno() != AVERROR(EAGAIN) &&
972 ff_neterrno() != AVERROR(EINTR)) {
973 /* error : close connection */
974 av_freep(&c->pb_buffer);
978 c->buffer_ptr += len;
980 c->stream->bytes_served += len;
981 c->data_count += len;
982 if (c->buffer_ptr >= c->buffer_end) {
983 av_freep(&c->pb_buffer);
987 /* all the buffer was sent : synchronize to the incoming stream */
988 c->state = HTTPSTATE_SEND_DATA_HEADER;
989 c->buffer_ptr = c->buffer_end = c->buffer;
994 case HTTPSTATE_SEND_DATA:
995 case HTTPSTATE_SEND_DATA_HEADER:
996 case HTTPSTATE_SEND_DATA_TRAILER:
997 /* for packetized output, we consider we can always write (the
998 input streams sets the speed). It may be better to verify
999 that we do not rely too much on the kernel queues */
1000 if (!c->is_packetized) {
1001 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1004 /* no need to read if no events */
1005 if (!(c->poll_entry->revents & POLLOUT))
1008 if (http_send_data(c) < 0)
1010 /* close connection if trailer sent */
1011 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1014 case HTTPSTATE_RECEIVE_DATA:
1015 /* no need to read if no events */
1016 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1018 if (!(c->poll_entry->revents & POLLIN))
1020 if (http_receive_data(c) < 0)
1023 case HTTPSTATE_WAIT_FEED:
1024 /* no need to read if no events */
1025 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1028 /* nothing to do, we'll be waken up by incoming feed packets */
1031 case RTSPSTATE_SEND_REPLY:
1032 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1033 av_freep(&c->pb_buffer);
1036 /* no need to write if no events */
1037 if (!(c->poll_entry->revents & POLLOUT))
1039 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1041 if (ff_neterrno() != AVERROR(EAGAIN) &&
1042 ff_neterrno() != AVERROR(EINTR)) {
1043 /* error : close connection */
1044 av_freep(&c->pb_buffer);
1048 c->buffer_ptr += len;
1049 c->data_count += len;
1050 if (c->buffer_ptr >= c->buffer_end) {
1051 /* all the buffer was sent : wait for a new request */
1052 av_freep(&c->pb_buffer);
1053 start_wait_request(c, 1);
1057 case RTSPSTATE_SEND_PACKET:
1058 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1059 av_freep(&c->packet_buffer);
1062 /* no need to write if no events */
1063 if (!(c->poll_entry->revents & POLLOUT))
1065 len = send(c->fd, c->packet_buffer_ptr,
1066 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1068 if (ff_neterrno() != AVERROR(EAGAIN) &&
1069 ff_neterrno() != AVERROR(EINTR)) {
1070 /* error : close connection */
1071 av_freep(&c->packet_buffer);
1075 c->packet_buffer_ptr += len;
1076 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1077 /* all the buffer was sent : wait for a new request */
1078 av_freep(&c->packet_buffer);
1079 c->state = RTSPSTATE_WAIT_REQUEST;
1083 case HTTPSTATE_READY:
1092 static int extract_rates(char *rates, int ratelen, const char *request)
1096 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1097 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1098 const char *q = p + 7;
1100 while (*q && *q != '\n' && isspace(*q))
1103 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1109 memset(rates, 0xff, ratelen);
1112 while (*q && *q != '\n' && *q != ':')
1115 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1119 if (stream_no < ratelen && stream_no >= 0)
1120 rates[stream_no] = rate_no;
1122 while (*q && *q != '\n' && !isspace(*q))
1129 p = strchr(p, '\n');
1139 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1142 int best_bitrate = 100000000;
1145 for (i = 0; i < feed->nb_streams; i++) {
1146 AVCodecContext *feed_codec = feed->streams[i]->codec;
1148 if (feed_codec->codec_id != codec->codec_id ||
1149 feed_codec->sample_rate != codec->sample_rate ||
1150 feed_codec->width != codec->width ||
1151 feed_codec->height != codec->height)
1154 /* Potential stream */
1156 /* We want the fastest stream less than bit_rate, or the slowest
1157 * faster than bit_rate
1160 if (feed_codec->bit_rate <= bit_rate) {
1161 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1162 best_bitrate = feed_codec->bit_rate;
1166 if (feed_codec->bit_rate < best_bitrate) {
1167 best_bitrate = feed_codec->bit_rate;
1176 static int modify_current_stream(HTTPContext *c, char *rates)
1179 FFStream *req = c->stream;
1180 int action_required = 0;
1182 /* Not much we can do for a feed */
1186 for (i = 0; i < req->nb_streams; i++) {
1187 AVCodecContext *codec = req->streams[i]->codec;
1191 c->switch_feed_streams[i] = req->feed_streams[i];
1194 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1197 /* Wants off or slow */
1198 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1200 /* This doesn't work well when it turns off the only stream! */
1201 c->switch_feed_streams[i] = -2;
1202 c->feed_streams[i] = -2;
1207 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1208 action_required = 1;
1211 return action_required;
1214 /* XXX: factorize in utils.c ? */
1215 /* XXX: take care with different space meaning */
1216 static void skip_spaces(const char **pp)
1220 while (*p == ' ' || *p == '\t')
1225 static void get_word(char *buf, int buf_size, const char **pp)
1233 while (!isspace(*p) && *p != '\0') {
1234 if ((q - buf) < buf_size - 1)
1243 static void get_arg(char *buf, int buf_size, const char **pp)
1250 while (isspace(*p)) p++;
1253 if (*p == '\"' || *p == '\'')
1265 if ((q - buf) < buf_size - 1)
1270 if (quote && *p == quote)
1275 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1276 const char *p, const char *filename, int line_num)
1282 get_arg(arg, sizeof(arg), &p);
1283 if (av_strcasecmp(arg, "allow") == 0)
1284 acl.action = IP_ALLOW;
1285 else if (av_strcasecmp(arg, "deny") == 0)
1286 acl.action = IP_DENY;
1288 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1289 filename, line_num, arg);
1293 get_arg(arg, sizeof(arg), &p);
1295 if (resolve_host(&acl.first, arg) != 0) {
1296 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1297 filename, line_num, arg);
1300 acl.last = acl.first;
1302 get_arg(arg, sizeof(arg), &p);
1305 if (resolve_host(&acl.last, arg) != 0) {
1306 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1307 filename, line_num, arg);
1313 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1314 IPAddressACL **naclp = 0;
1320 naclp = &stream->acl;
1326 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1327 filename, line_num);
1333 naclp = &(*naclp)->next;
1341 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1346 IPAddressACL *acl = NULL;
1350 f = fopen(stream->dynamic_acl, "r");
1352 perror(stream->dynamic_acl);
1356 acl = av_mallocz(sizeof(IPAddressACL));
1360 if (fgets(line, sizeof(line), f) == NULL)
1366 if (*p == '\0' || *p == '#')
1368 get_arg(cmd, sizeof(cmd), &p);
1370 if (!av_strcasecmp(cmd, "ACL"))
1371 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1378 static void free_acl_list(IPAddressACL *in_acl)
1380 IPAddressACL *pacl,*pacl2;
1390 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1392 enum IPAddressAction last_action = IP_DENY;
1394 struct in_addr *src = &c->from_addr.sin_addr;
1395 unsigned long src_addr = src->s_addr;
1397 for (acl = in_acl; acl; acl = acl->next) {
1398 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1399 return (acl->action == IP_ALLOW) ? 1 : 0;
1400 last_action = acl->action;
1403 /* Nothing matched, so return not the last action */
1404 return (last_action == IP_DENY) ? 1 : 0;
1407 static int validate_acl(FFStream *stream, HTTPContext *c)
1413 /* if stream->acl is null validate_acl_list will return 1 */
1414 ret = validate_acl_list(stream->acl, c);
1416 if (stream->dynamic_acl[0]) {
1417 acl = parse_dynamic_acl(stream, c);
1419 ret = validate_acl_list(acl, c);
1427 /* compute the real filename of a file by matching it without its
1428 extensions to all the stream filenames */
1429 static void compute_real_filename(char *filename, int max_size)
1436 /* compute filename by matching without the file extensions */
1437 av_strlcpy(file1, filename, sizeof(file1));
1438 p = strrchr(file1, '.');
1441 for(stream = first_stream; stream != NULL; stream = stream->next) {
1442 av_strlcpy(file2, stream->filename, sizeof(file2));
1443 p = strrchr(file2, '.');
1446 if (!strcmp(file1, file2)) {
1447 av_strlcpy(filename, stream->filename, max_size);
1462 /* parse http request and prepare header */
1463 static int http_parse_request(HTTPContext *c)
1466 enum RedirType redir_type;
1468 char info[1024], filename[1024];
1472 const char *mime_type;
1476 char *useragent = 0;
1479 get_word(cmd, sizeof(cmd), (const char **)&p);
1480 av_strlcpy(c->method, cmd, sizeof(c->method));
1482 if (!strcmp(cmd, "GET"))
1484 else if (!strcmp(cmd, "POST"))
1489 get_word(url, sizeof(url), (const char **)&p);
1490 av_strlcpy(c->url, url, sizeof(c->url));
1492 get_word(protocol, sizeof(protocol), (const char **)&p);
1493 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1496 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1499 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1501 /* find the filename and the optional info string in the request */
1502 p = strchr(url, '?');
1504 av_strlcpy(info, p, sizeof(info));
1509 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1511 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1512 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1514 if (*useragent && *useragent != '\n' && isspace(*useragent))
1518 p = strchr(p, '\n');
1525 redir_type = REDIR_NONE;
1526 if (av_match_ext(filename, "asx")) {
1527 redir_type = REDIR_ASX;
1528 filename[strlen(filename)-1] = 'f';
1529 } else if (av_match_ext(filename, "asf") &&
1530 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1531 /* if this isn't WMP or lookalike, return the redirector file */
1532 redir_type = REDIR_ASF;
1533 } else if (av_match_ext(filename, "rpm,ram")) {
1534 redir_type = REDIR_RAM;
1535 strcpy(filename + strlen(filename)-2, "m");
1536 } else if (av_match_ext(filename, "rtsp")) {
1537 redir_type = REDIR_RTSP;
1538 compute_real_filename(filename, sizeof(filename) - 1);
1539 } else if (av_match_ext(filename, "sdp")) {
1540 redir_type = REDIR_SDP;
1541 compute_real_filename(filename, sizeof(filename) - 1);
1544 // "redirect" / request to index.html
1545 if (!strlen(filename))
1546 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1548 stream = first_stream;
1549 while (stream != NULL) {
1550 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1552 stream = stream->next;
1554 if (stream == NULL) {
1555 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1556 http_log("File '%s' not found\n", url);
1561 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1562 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1564 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1565 c->http_error = 301;
1567 q += snprintf(q, c->buffer_size,
1568 "HTTP/1.0 301 Moved\r\n"
1570 "Content-type: text/html\r\n"
1572 "<html><head><title>Moved</title></head><body>\r\n"
1573 "You should be <a href=\"%s\">redirected</a>.\r\n"
1574 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1575 /* prepare output buffer */
1576 c->buffer_ptr = c->buffer;
1578 c->state = HTTPSTATE_SEND_HEADER;
1582 /* If this is WMP, get the rate information */
1583 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1584 if (modify_current_stream(c, ratebuf)) {
1585 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1586 if (c->switch_feed_streams[i] >= 0)
1587 c->switch_feed_streams[i] = -1;
1592 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1593 current_bandwidth += stream->bandwidth;
1595 /* If already streaming this feed, do not let start another feeder. */
1596 if (stream->feed_opened) {
1597 snprintf(msg, sizeof(msg), "This feed is already being received.");
1598 http_log("Feed '%s' already being received\n", stream->feed_filename);
1602 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1603 c->http_error = 503;
1605 q += snprintf(q, c->buffer_size,
1606 "HTTP/1.0 503 Server too busy\r\n"
1607 "Content-type: text/html\r\n"
1609 "<html><head><title>Too busy</title></head><body>\r\n"
1610 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1611 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1612 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1613 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1614 /* prepare output buffer */
1615 c->buffer_ptr = c->buffer;
1617 c->state = HTTPSTATE_SEND_HEADER;
1621 if (redir_type != REDIR_NONE) {
1624 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1625 if (av_strncasecmp(p, "Host:", 5) == 0) {
1629 p = strchr(p, '\n');
1640 while (isspace(*hostinfo))
1643 eoh = strchr(hostinfo, '\n');
1645 if (eoh[-1] == '\r')
1648 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1649 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1650 hostbuf[eoh - hostinfo] = 0;
1652 c->http_error = 200;
1654 switch(redir_type) {
1656 q += snprintf(q, c->buffer_size,
1657 "HTTP/1.0 200 ASX Follows\r\n"
1658 "Content-type: video/x-ms-asf\r\n"
1660 "<ASX Version=\"3\">\r\n"
1661 //"<!-- Autogenerated by ffserver -->\r\n"
1662 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1663 "</ASX>\r\n", hostbuf, filename, info);
1666 q += snprintf(q, c->buffer_size,
1667 "HTTP/1.0 200 RAM Follows\r\n"
1668 "Content-type: audio/x-pn-realaudio\r\n"
1670 "# Autogenerated by ffserver\r\n"
1671 "http://%s/%s%s\r\n", hostbuf, filename, info);
1674 q += snprintf(q, c->buffer_size,
1675 "HTTP/1.0 200 ASF Redirect follows\r\n"
1676 "Content-type: video/x-ms-asf\r\n"
1679 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1683 char hostname[256], *p;
1684 /* extract only hostname */
1685 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1686 p = strrchr(hostname, ':');
1689 q += snprintf(q, c->buffer_size,
1690 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1691 /* XXX: incorrect mime type ? */
1692 "Content-type: application/x-rtsp\r\n"
1694 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1700 int sdp_data_size, len;
1701 struct sockaddr_in my_addr;
1703 q += snprintf(q, c->buffer_size,
1704 "HTTP/1.0 200 OK\r\n"
1705 "Content-type: application/sdp\r\n"
1708 len = sizeof(my_addr);
1709 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1711 /* XXX: should use a dynamic buffer */
1712 sdp_data_size = prepare_sdp_description(stream,
1715 if (sdp_data_size > 0) {
1716 memcpy(q, sdp_data, sdp_data_size);
1728 /* prepare output buffer */
1729 c->buffer_ptr = c->buffer;
1731 c->state = HTTPSTATE_SEND_HEADER;
1737 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1741 stream->conns_served++;
1743 /* XXX: add there authenticate and IP match */
1746 /* if post, it means a feed is being sent */
1747 if (!stream->is_feed) {
1748 /* However it might be a status report from WMP! Let us log the
1749 * data as it might come in handy one day. */
1753 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1754 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1758 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1759 client_id = strtol(p + 18, 0, 10);
1760 p = strchr(p, '\n');
1768 char *eol = strchr(logline, '\n');
1773 if (eol[-1] == '\r')
1775 http_log("%.*s\n", (int) (eol - logline), logline);
1776 c->suppress_log = 1;
1781 http_log("\nGot request:\n%s\n", c->buffer);
1784 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1787 /* Now we have to find the client_id */
1788 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1789 if (wmpc->wmp_client_id == client_id)
1793 if (wmpc && modify_current_stream(wmpc, ratebuf))
1794 wmpc->switch_pending = 1;
1797 snprintf(msg, sizeof(msg), "POST command not handled");
1801 if (http_start_receive_data(c) < 0) {
1802 snprintf(msg, sizeof(msg), "could not open feed");
1806 c->state = HTTPSTATE_RECEIVE_DATA;
1811 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1812 http_log("\nGot request:\n%s\n", c->buffer);
1815 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1818 /* open input stream */
1819 if (open_input_stream(c, info) < 0) {
1820 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1824 /* prepare http header */
1826 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1827 mime_type = c->stream->fmt->mime_type;
1829 mime_type = "application/x-octet-stream";
1830 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
1832 /* for asf, we need extra headers */
1833 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1834 /* Need to allocate a client id */
1836 c->wmp_client_id = av_lfg_get(&random_state);
1838 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);
1840 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1841 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1843 /* prepare output buffer */
1845 c->buffer_ptr = c->buffer;
1847 c->state = HTTPSTATE_SEND_HEADER;
1850 c->http_error = 404;
1852 q += snprintf(q, c->buffer_size,
1853 "HTTP/1.0 404 Not Found\r\n"
1854 "Content-type: text/html\r\n"
1857 "<head><title>404 Not Found</title></head>\n"
1860 /* prepare output buffer */
1861 c->buffer_ptr = c->buffer;
1863 c->state = HTTPSTATE_SEND_HEADER;
1867 c->http_error = 200; /* horrible : we use this value to avoid
1868 going to the send data state */
1869 c->state = HTTPSTATE_SEND_HEADER;
1873 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1875 static const char *suffix = " kMGTP";
1878 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1880 avio_printf(pb, "%"PRId64"%c", count, *s);
1883 static void compute_status(HTTPContext *c)
1892 if (avio_open_dyn_buf(&pb) < 0) {
1893 /* XXX: return an error ? */
1894 c->buffer_ptr = c->buffer;
1895 c->buffer_end = c->buffer;
1899 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1900 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1901 avio_printf(pb, "Pragma: no-cache\r\n");
1902 avio_printf(pb, "\r\n");
1904 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1905 if (c->stream->feed_filename[0])
1906 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1907 avio_printf(pb, "</head>\n<body>");
1908 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1910 avio_printf(pb, "<h2>Available Streams</h2>\n");
1911 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1912 avio_printf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>kbits/s<th align=left>Video<br>kbits/s<th><br>Codec<th align=left>Audio<br>kbits/s<th><br>Codec<th align=left valign=top>Feed\n");
1913 stream = first_stream;
1914 while (stream != NULL) {
1915 char sfilename[1024];
1918 if (stream->feed != stream) {
1919 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1920 eosf = sfilename + strlen(sfilename);
1921 if (eosf - sfilename >= 4) {
1922 if (strcmp(eosf - 4, ".asf") == 0)
1923 strcpy(eosf - 4, ".asx");
1924 else if (strcmp(eosf - 3, ".rm") == 0)
1925 strcpy(eosf - 3, ".ram");
1926 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1927 /* generate a sample RTSP director if
1928 unicast. Generate an SDP redirector if
1930 eosf = strrchr(sfilename, '.');
1932 eosf = sfilename + strlen(sfilename);
1933 if (stream->is_multicast)
1934 strcpy(eosf, ".sdp");
1936 strcpy(eosf, ".rtsp");
1940 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1941 sfilename, stream->filename);
1942 avio_printf(pb, "<td align=right> %d <td align=right> ",
1943 stream->conns_served);
1944 fmt_bytecount(pb, stream->bytes_served);
1945 switch(stream->stream_type) {
1946 case STREAM_TYPE_LIVE: {
1947 int audio_bit_rate = 0;
1948 int video_bit_rate = 0;
1949 const char *audio_codec_name = "";
1950 const char *video_codec_name = "";
1951 const char *audio_codec_name_extra = "";
1952 const char *video_codec_name_extra = "";
1954 for(i=0;i<stream->nb_streams;i++) {
1955 AVStream *st = stream->streams[i];
1956 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1957 switch(st->codec->codec_type) {
1958 case AVMEDIA_TYPE_AUDIO:
1959 audio_bit_rate += st->codec->bit_rate;
1961 if (*audio_codec_name)
1962 audio_codec_name_extra = "...";
1963 audio_codec_name = codec->name;
1966 case AVMEDIA_TYPE_VIDEO:
1967 video_bit_rate += st->codec->bit_rate;
1969 if (*video_codec_name)
1970 video_codec_name_extra = "...";
1971 video_codec_name = codec->name;
1974 case AVMEDIA_TYPE_DATA:
1975 video_bit_rate += st->codec->bit_rate;
1981 avio_printf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s",
1984 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1985 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
1987 avio_printf(pb, "<td>%s", stream->feed->filename);
1989 avio_printf(pb, "<td>%s", stream->feed_filename);
1990 avio_printf(pb, "\n");
1994 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
1998 stream = stream->next;
2000 avio_printf(pb, "</table>\n");
2002 stream = first_stream;
2003 while (stream != NULL) {
2004 if (stream->feed == stream) {
2005 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2007 avio_printf(pb, "Running as pid %d.\n", stream->pid);
2009 #if defined(linux) && !defined(CONFIG_NOCUTILS)
2014 /* This is somewhat linux specific I guess */
2015 snprintf(ps_cmd, sizeof(ps_cmd),
2016 "ps -o \"%%cpu,cputime\" --no-headers %d",
2019 pid_stat = popen(ps_cmd, "r");
2024 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2026 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2034 avio_printf(pb, "<p>");
2036 avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
2038 for (i = 0; i < stream->nb_streams; i++) {
2039 AVStream *st = stream->streams[i];
2040 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2041 const char *type = "unknown";
2042 char parameters[64];
2046 switch(st->codec->codec_type) {
2047 case AVMEDIA_TYPE_AUDIO:
2049 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2051 case AVMEDIA_TYPE_VIDEO:
2053 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2054 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2059 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2060 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2062 avio_printf(pb, "</table>\n");
2065 stream = stream->next;
2068 /* connection status */
2069 avio_printf(pb, "<h2>Connection Status</h2>\n");
2071 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2072 nb_connections, nb_max_connections);
2074 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2075 current_bandwidth, max_bandwidth);
2077 avio_printf(pb, "<table>\n");
2078 avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
2079 c1 = first_http_ctx;
2081 while (c1 != NULL) {
2087 for (j = 0; j < c1->stream->nb_streams; j++) {
2088 if (!c1->stream->feed)
2089 bitrate += c1->stream->streams[j]->codec->bit_rate;
2090 else if (c1->feed_streams[j] >= 0)
2091 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2096 p = inet_ntoa(c1->from_addr.sin_addr);
2097 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2099 c1->stream ? c1->stream->filename : "",
2100 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2103 http_state[c1->state]);
2104 fmt_bytecount(pb, bitrate);
2105 avio_printf(pb, "<td align=right>");
2106 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2107 avio_printf(pb, "<td align=right>");
2108 fmt_bytecount(pb, c1->data_count);
2109 avio_printf(pb, "\n");
2112 avio_printf(pb, "</table>\n");
2117 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2118 avio_printf(pb, "</body>\n</html>\n");
2120 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2121 c->buffer_ptr = c->pb_buffer;
2122 c->buffer_end = c->pb_buffer + len;
2125 static int open_input_stream(HTTPContext *c, const char *info)
2128 char input_filename[1024];
2129 AVFormatContext *s = NULL;
2133 /* find file name */
2134 if (c->stream->feed) {
2135 strcpy(input_filename, c->stream->feed->feed_filename);
2136 /* compute position (absolute time) */
2137 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2138 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2140 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2141 int prebuffer = strtol(buf, 0, 10);
2142 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2144 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2146 strcpy(input_filename, c->stream->feed_filename);
2147 /* compute position (relative time) */
2148 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2149 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2154 if (input_filename[0] == '\0')
2158 if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) {
2159 http_log("could not open %s: %d\n", input_filename, ret);
2162 s->flags |= AVFMT_FLAG_GENPTS;
2164 if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) {
2165 http_log("Could not find stream info '%s'\n", input_filename);
2166 avformat_close_input(&s);
2170 /* choose stream as clock source (we favorize video stream if
2171 present) for packet sending */
2172 c->pts_stream_index = 0;
2173 for(i=0;i<c->stream->nb_streams;i++) {
2174 if (c->pts_stream_index == 0 &&
2175 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2176 c->pts_stream_index = i;
2180 if (c->fmt_in->iformat->read_seek)
2181 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2182 /* set the start time (needed for maxtime and RTP packet timing) */
2183 c->start_time = cur_time;
2184 c->first_pts = AV_NOPTS_VALUE;
2188 /* return the server clock (in us) */
2189 static int64_t get_server_clock(HTTPContext *c)
2191 /* compute current pts value from system time */
2192 return (cur_time - c->start_time) * 1000;
2195 /* return the estimated time at which the current packet must be sent
2197 static int64_t get_packet_send_clock(HTTPContext *c)
2199 int bytes_left, bytes_sent, frame_bytes;
2201 frame_bytes = c->cur_frame_bytes;
2202 if (frame_bytes <= 0)
2205 bytes_left = c->buffer_end - c->buffer_ptr;
2206 bytes_sent = frame_bytes - bytes_left;
2207 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2212 static int http_prepare_data(HTTPContext *c)
2215 AVFormatContext *ctx;
2217 av_freep(&c->pb_buffer);
2219 case HTTPSTATE_SEND_DATA_HEADER:
2220 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2221 av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2222 av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2223 av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2224 av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2226 c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
2228 for(i=0;i<c->stream->nb_streams;i++) {
2230 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2231 /* if file or feed, then just take streams from FFStream struct */
2232 if (!c->stream->feed ||
2233 c->stream->feed == c->stream)
2234 src = c->stream->streams[i];
2236 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2238 *(c->fmt_ctx.streams[i]) = *src;
2239 c->fmt_ctx.streams[i]->priv_data = 0;
2240 c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
2241 AVStream, not in codec */
2243 /* set output format parameters */
2244 c->fmt_ctx.oformat = c->stream->fmt;
2245 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2247 c->got_key_frame = 0;
2249 /* prepare header and save header data in a stream */
2250 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2251 /* XXX: potential leak */
2254 c->fmt_ctx.pb->seekable = 0;
2257 * HACK to avoid mpeg ps muxer to spit many underflow errors
2258 * Default value from FFmpeg
2259 * Try to set it use configuration option
2261 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2263 if (avformat_write_header(&c->fmt_ctx, NULL) < 0) {
2264 http_log("Error writing output header\n");
2267 av_dict_free(&c->fmt_ctx.metadata);
2269 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2270 c->buffer_ptr = c->pb_buffer;
2271 c->buffer_end = c->pb_buffer + len;
2273 c->state = HTTPSTATE_SEND_DATA;
2274 c->last_packet_sent = 0;
2276 case HTTPSTATE_SEND_DATA:
2277 /* find a new packet */
2278 /* read a packet from the input stream */
2279 if (c->stream->feed)
2280 ffm_set_write_index(c->fmt_in,
2281 c->stream->feed->feed_write_index,
2282 c->stream->feed->feed_size);
2284 if (c->stream->max_time &&
2285 c->stream->max_time + c->start_time - cur_time < 0)
2286 /* We have timed out */
2287 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2291 ret = av_read_frame(c->fmt_in, &pkt);
2293 if (c->stream->feed) {
2294 /* if coming from feed, it means we reached the end of the
2295 ffm file, so must wait for more data */
2296 c->state = HTTPSTATE_WAIT_FEED;
2297 return 1; /* state changed */
2298 } else if (ret == AVERROR(EAGAIN)) {
2299 /* input not ready, come back later */
2302 if (c->stream->loop) {
2303 avformat_close_input(&c->fmt_in);
2304 if (open_input_stream(c, "") < 0)
2309 /* must send trailer now because eof or error */
2310 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2314 int source_index = pkt.stream_index;
2315 /* update first pts if needed */
2316 if (c->first_pts == AV_NOPTS_VALUE) {
2317 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2318 c->start_time = cur_time;
2320 /* send it to the appropriate stream */
2321 if (c->stream->feed) {
2322 /* if coming from a feed, select the right stream */
2323 if (c->switch_pending) {
2324 c->switch_pending = 0;
2325 for(i=0;i<c->stream->nb_streams;i++) {
2326 if (c->switch_feed_streams[i] == pkt.stream_index)
2327 if (pkt.flags & AV_PKT_FLAG_KEY)
2328 c->switch_feed_streams[i] = -1;
2329 if (c->switch_feed_streams[i] >= 0)
2330 c->switch_pending = 1;
2333 for(i=0;i<c->stream->nb_streams;i++) {
2334 if (c->stream->feed_streams[i] == pkt.stream_index) {
2335 AVStream *st = c->fmt_in->streams[source_index];
2336 pkt.stream_index = i;
2337 if (pkt.flags & AV_PKT_FLAG_KEY &&
2338 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2339 c->stream->nb_streams == 1))
2340 c->got_key_frame = 1;
2341 if (!c->stream->send_on_key || c->got_key_frame)
2346 AVCodecContext *codec;
2347 AVStream *ist, *ost;
2349 ist = c->fmt_in->streams[source_index];
2350 /* specific handling for RTP: we use several
2351 output stream (one for each RTP
2352 connection). XXX: need more abstract handling */
2353 if (c->is_packetized) {
2354 /* compute send time and duration */
2355 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2356 c->cur_pts -= c->first_pts;
2357 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2358 /* find RTP context */
2359 c->packet_stream_index = pkt.stream_index;
2360 ctx = c->rtp_ctx[c->packet_stream_index];
2362 av_free_packet(&pkt);
2365 codec = ctx->streams[0]->codec;
2366 /* only one stream per RTP connection */
2367 pkt.stream_index = 0;
2371 codec = ctx->streams[pkt.stream_index]->codec;
2374 if (c->is_packetized) {
2375 int max_packet_size;
2376 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2377 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2379 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2380 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2382 ret = avio_open_dyn_buf(&ctx->pb);
2385 /* XXX: potential leak */
2388 ost = ctx->streams[pkt.stream_index];
2390 ctx->pb->seekable = 0;
2391 if (pkt.dts != AV_NOPTS_VALUE)
2392 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2393 if (pkt.pts != AV_NOPTS_VALUE)
2394 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2395 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2396 if (av_write_frame(ctx, &pkt) < 0) {
2397 http_log("Error writing frame to output\n");
2398 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2401 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2402 c->cur_frame_bytes = len;
2403 c->buffer_ptr = c->pb_buffer;
2404 c->buffer_end = c->pb_buffer + len;
2406 codec->frame_number++;
2408 av_free_packet(&pkt);
2412 av_free_packet(&pkt);
2417 case HTTPSTATE_SEND_DATA_TRAILER:
2418 /* last packet test ? */
2419 if (c->last_packet_sent || c->is_packetized)
2422 /* prepare header */
2423 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2424 /* XXX: potential leak */
2427 c->fmt_ctx.pb->seekable = 0;
2428 av_write_trailer(ctx);
2429 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2430 c->buffer_ptr = c->pb_buffer;
2431 c->buffer_end = c->pb_buffer + len;
2433 c->last_packet_sent = 1;
2439 /* should convert the format at the same time */
2440 /* send data starting at c->buffer_ptr to the output connection
2441 (either UDP or TCP connection) */
2442 static int http_send_data(HTTPContext *c)
2447 if (c->buffer_ptr >= c->buffer_end) {
2448 ret = http_prepare_data(c);
2452 /* state change requested */
2455 if (c->is_packetized) {
2456 /* RTP data output */
2457 len = c->buffer_end - c->buffer_ptr;
2459 /* fail safe - should never happen */
2461 c->buffer_ptr = c->buffer_end;
2464 len = (c->buffer_ptr[0] << 24) |
2465 (c->buffer_ptr[1] << 16) |
2466 (c->buffer_ptr[2] << 8) |
2468 if (len > (c->buffer_end - c->buffer_ptr))
2470 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2471 /* nothing to send yet: we can wait */
2475 c->data_count += len;
2476 update_datarate(&c->datarate, c->data_count);
2478 c->stream->bytes_served += len;
2480 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2481 /* RTP packets are sent inside the RTSP TCP connection */
2483 int interleaved_index, size;
2485 HTTPContext *rtsp_c;
2488 /* if no RTSP connection left, error */
2491 /* if already sending something, then wait. */
2492 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2494 if (avio_open_dyn_buf(&pb) < 0)
2496 interleaved_index = c->packet_stream_index * 2;
2497 /* RTCP packets are sent at odd indexes */
2498 if (c->buffer_ptr[1] == 200)
2499 interleaved_index++;
2500 /* write RTSP TCP header */
2502 header[1] = interleaved_index;
2503 header[2] = len >> 8;
2505 avio_write(pb, header, 4);
2506 /* write RTP packet data */
2508 avio_write(pb, c->buffer_ptr, len);
2509 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2510 /* prepare asynchronous TCP sending */
2511 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2512 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2513 c->buffer_ptr += len;
2515 /* send everything we can NOW */
2516 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2517 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2519 rtsp_c->packet_buffer_ptr += len;
2520 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2521 /* if we could not send all the data, we will
2522 send it later, so a new state is needed to
2523 "lock" the RTSP TCP connection */
2524 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2527 /* all data has been sent */
2528 av_freep(&c->packet_buffer);
2530 /* send RTP packet directly in UDP */
2532 ffurl_write(c->rtp_handles[c->packet_stream_index],
2533 c->buffer_ptr, len);
2534 c->buffer_ptr += len;
2535 /* here we continue as we can send several packets per 10 ms slot */
2538 /* TCP data output */
2539 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2541 if (ff_neterrno() != AVERROR(EAGAIN) &&
2542 ff_neterrno() != AVERROR(EINTR))
2543 /* error : close connection */
2548 c->buffer_ptr += len;
2550 c->data_count += len;
2551 update_datarate(&c->datarate, c->data_count);
2553 c->stream->bytes_served += len;
2561 static int http_start_receive_data(HTTPContext *c)
2565 if (c->stream->feed_opened)
2568 /* Don't permit writing to this one */
2569 if (c->stream->readonly)
2573 fd = open(c->stream->feed_filename, O_RDWR);
2575 http_log("Error opening feeder file: %s\n", strerror(errno));
2580 if (c->stream->truncate) {
2581 /* truncate feed file */
2582 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2583 ftruncate(c->feed_fd, FFM_PACKET_SIZE);
2584 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2586 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2587 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2592 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2593 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2594 lseek(fd, 0, SEEK_SET);
2596 /* init buffer input */
2597 c->buffer_ptr = c->buffer;
2598 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2599 c->stream->feed_opened = 1;
2600 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2604 static int http_receive_data(HTTPContext *c)
2607 int len, loop_run = 0;
2609 while (c->chunked_encoding && !c->chunk_size &&
2610 c->buffer_end > c->buffer_ptr) {
2611 /* read chunk header, if present */
2612 len = recv(c->fd, c->buffer_ptr, 1, 0);
2615 if (ff_neterrno() != AVERROR(EAGAIN) &&
2616 ff_neterrno() != AVERROR(EINTR))
2617 /* error : close connection */
2620 } else if (len == 0) {
2621 /* end of connection : close it */
2623 } else if (c->buffer_ptr - c->buffer >= 2 &&
2624 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2625 c->chunk_size = strtol(c->buffer, 0, 16);
2626 if (c->chunk_size == 0) // end of stream
2628 c->buffer_ptr = c->buffer;
2630 } else if (++loop_run > 10) {
2631 /* no chunk header, abort */
2638 if (c->buffer_end > c->buffer_ptr) {
2639 len = recv(c->fd, c->buffer_ptr,
2640 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2642 if (ff_neterrno() != AVERROR(EAGAIN) &&
2643 ff_neterrno() != AVERROR(EINTR))
2644 /* error : close connection */
2646 } else if (len == 0)
2647 /* end of connection : close it */
2650 c->chunk_size -= len;
2651 c->buffer_ptr += len;
2652 c->data_count += len;
2653 update_datarate(&c->datarate, c->data_count);
2657 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2658 if (c->buffer[0] != 'f' ||
2659 c->buffer[1] != 'm') {
2660 http_log("Feed stream has become desynchronized -- disconnecting\n");
2665 if (c->buffer_ptr >= c->buffer_end) {
2666 FFStream *feed = c->stream;
2667 /* a packet has been received : write it in the store, except
2669 if (c->data_count > FFM_PACKET_SIZE) {
2671 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
2672 /* XXX: use llseek or url_seek */
2673 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2674 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2675 http_log("Error writing to feed file: %s\n", strerror(errno));
2679 feed->feed_write_index += FFM_PACKET_SIZE;
2680 /* update file size */
2681 if (feed->feed_write_index > c->stream->feed_size)
2682 feed->feed_size = feed->feed_write_index;
2684 /* handle wrap around if max file size reached */
2685 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2686 feed->feed_write_index = FFM_PACKET_SIZE;
2689 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2690 http_log("Error writing index to feed file: %s\n", strerror(errno));
2694 /* wake up any waiting connections */
2695 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2696 if (c1->state == HTTPSTATE_WAIT_FEED &&
2697 c1->stream->feed == c->stream->feed)
2698 c1->state = HTTPSTATE_SEND_DATA;
2701 /* We have a header in our hands that contains useful data */
2702 AVFormatContext *s = avformat_alloc_context();
2704 AVInputFormat *fmt_in;
2710 /* use feed output format name to find corresponding input format */
2711 fmt_in = av_find_input_format(feed->fmt->name);
2715 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2716 0, NULL, NULL, NULL, NULL);
2720 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2725 /* Now we have the actual streams */
2726 if (s->nb_streams != feed->nb_streams) {
2727 avformat_close_input(&s);
2729 http_log("Feed '%s' stream number does not match registered feed\n",
2730 c->stream->feed_filename);
2734 for (i = 0; i < s->nb_streams; i++) {
2735 AVStream *fst = feed->streams[i];
2736 AVStream *st = s->streams[i];
2737 avcodec_copy_context(fst->codec, st->codec);
2740 avformat_close_input(&s);
2743 c->buffer_ptr = c->buffer;
2748 c->stream->feed_opened = 0;
2750 /* wake up any waiting connections to stop waiting for feed */
2751 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2752 if (c1->state == HTTPSTATE_WAIT_FEED &&
2753 c1->stream->feed == c->stream->feed)
2754 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2759 /********************************************************************/
2762 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2769 switch(error_number) {
2770 case RTSP_STATUS_OK:
2773 case RTSP_STATUS_METHOD:
2774 str = "Method Not Allowed";
2776 case RTSP_STATUS_BANDWIDTH:
2777 str = "Not Enough Bandwidth";
2779 case RTSP_STATUS_SESSION:
2780 str = "Session Not Found";
2782 case RTSP_STATUS_STATE:
2783 str = "Method Not Valid in This State";
2785 case RTSP_STATUS_AGGREGATE:
2786 str = "Aggregate operation not allowed";
2788 case RTSP_STATUS_ONLY_AGGREGATE:
2789 str = "Only aggregate operation allowed";
2791 case RTSP_STATUS_TRANSPORT:
2792 str = "Unsupported transport";
2794 case RTSP_STATUS_INTERNAL:
2795 str = "Internal Server Error";
2797 case RTSP_STATUS_SERVICE:
2798 str = "Service Unavailable";
2800 case RTSP_STATUS_VERSION:
2801 str = "RTSP Version not supported";
2804 str = "Unknown Error";
2808 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2809 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2811 /* output GMT time */
2814 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2815 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2818 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2820 rtsp_reply_header(c, error_number);
2821 avio_printf(c->pb, "\r\n");
2824 static int rtsp_parse_request(HTTPContext *c)
2826 const char *p, *p1, *p2;
2832 RTSPMessageHeader header1, *header = &header1;
2834 c->buffer_ptr[0] = '\0';
2837 get_word(cmd, sizeof(cmd), &p);
2838 get_word(url, sizeof(url), &p);
2839 get_word(protocol, sizeof(protocol), &p);
2841 av_strlcpy(c->method, cmd, sizeof(c->method));
2842 av_strlcpy(c->url, url, sizeof(c->url));
2843 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2845 if (avio_open_dyn_buf(&c->pb) < 0) {
2846 /* XXX: cannot do more */
2847 c->pb = NULL; /* safety */
2851 /* check version name */
2852 if (strcmp(protocol, "RTSP/1.0") != 0) {
2853 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2857 /* parse each header line */
2858 memset(header, 0, sizeof(*header));
2859 /* skip to next line */
2860 while (*p != '\n' && *p != '\0')
2864 while (*p != '\0') {
2865 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2869 if (p2 > p && p2[-1] == '\r')
2871 /* skip empty line */
2875 if (len > sizeof(line) - 1)
2876 len = sizeof(line) - 1;
2877 memcpy(line, p, len);
2879 ff_rtsp_parse_line(header, line, NULL, NULL);
2883 /* handle sequence number */
2884 c->seq = header->seq;
2886 if (!strcmp(cmd, "DESCRIBE"))
2887 rtsp_cmd_describe(c, url);
2888 else if (!strcmp(cmd, "OPTIONS"))
2889 rtsp_cmd_options(c, url);
2890 else if (!strcmp(cmd, "SETUP"))
2891 rtsp_cmd_setup(c, url, header);
2892 else if (!strcmp(cmd, "PLAY"))
2893 rtsp_cmd_play(c, url, header);
2894 else if (!strcmp(cmd, "PAUSE"))
2895 rtsp_cmd_pause(c, url, header);
2896 else if (!strcmp(cmd, "TEARDOWN"))
2897 rtsp_cmd_teardown(c, url, header);
2899 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2902 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2903 c->pb = NULL; /* safety */
2905 /* XXX: cannot do more */
2908 c->buffer_ptr = c->pb_buffer;
2909 c->buffer_end = c->pb_buffer + len;
2910 c->state = RTSPSTATE_SEND_REPLY;
2914 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2915 struct in_addr my_ip)
2917 AVFormatContext *avc;
2918 AVStream *avs = NULL;
2921 avc = avformat_alloc_context();
2925 av_dict_set(&avc->metadata, "title",
2926 stream->title[0] ? stream->title : "No Title", 0);
2927 avc->nb_streams = stream->nb_streams;
2928 if (stream->is_multicast) {
2929 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2930 inet_ntoa(stream->multicast_ip),
2931 stream->multicast_port, stream->multicast_ttl);
2933 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2936 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2937 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2939 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2940 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2943 for(i = 0; i < stream->nb_streams; i++) {
2944 avc->streams[i] = &avs[i];
2945 avc->streams[i]->codec = stream->streams[i]->codec;
2947 *pbuffer = av_mallocz(2048);
2948 av_sdp_create(&avc, 1, *pbuffer, 2048);
2951 av_free(avc->streams);
2952 av_dict_free(&avc->metadata);
2956 return strlen(*pbuffer);
2959 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2961 // rtsp_reply_header(c, RTSP_STATUS_OK);
2962 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2963 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2964 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2965 avio_printf(c->pb, "\r\n");
2968 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2974 int content_length, len;
2975 struct sockaddr_in my_addr;
2977 /* find which url is asked */
2978 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2983 for(stream = first_stream; stream != NULL; stream = stream->next) {
2984 if (!stream->is_feed &&
2985 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2986 !strcmp(path, stream->filename)) {
2990 /* no stream found */
2991 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2995 /* prepare the media description in sdp format */
2997 /* get the host IP */
2998 len = sizeof(my_addr);
2999 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3000 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3001 if (content_length < 0) {
3002 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3005 rtsp_reply_header(c, RTSP_STATUS_OK);
3006 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3007 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3008 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3009 avio_printf(c->pb, "\r\n");
3010 avio_write(c->pb, content, content_length);
3014 static HTTPContext *find_rtp_session(const char *session_id)
3018 if (session_id[0] == '\0')
3021 for(c = first_http_ctx; c != NULL; c = c->next) {
3022 if (!strcmp(c->session_id, session_id))
3028 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3030 RTSPTransportField *th;
3033 for(i=0;i<h->nb_transports;i++) {
3034 th = &h->transports[i];
3035 if (th->lower_transport == lower_transport)
3041 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3042 RTSPMessageHeader *h)
3045 int stream_index, rtp_port, rtcp_port;
3050 RTSPTransportField *th;
3051 struct sockaddr_in dest_addr;
3052 RTSPActionServerSetup setup;
3054 /* find which url is asked */
3055 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3060 /* now check each stream */
3061 for(stream = first_stream; stream != NULL; stream = stream->next) {
3062 if (!stream->is_feed &&
3063 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3064 /* accept aggregate filenames only if single stream */
3065 if (!strcmp(path, stream->filename)) {
3066 if (stream->nb_streams != 1) {
3067 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3074 for(stream_index = 0; stream_index < stream->nb_streams;
3076 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3077 stream->filename, stream_index);
3078 if (!strcmp(path, buf))
3083 /* no stream found */
3084 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3088 /* generate session id if needed */
3089 if (h->session_id[0] == '\0')
3090 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3091 av_lfg_get(&random_state), av_lfg_get(&random_state));
3093 /* find rtp session, and create it if none found */
3094 rtp_c = find_rtp_session(h->session_id);
3096 /* always prefer UDP */
3097 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3099 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3101 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3106 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3107 th->lower_transport);
3109 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3113 /* open input stream */
3114 if (open_input_stream(rtp_c, "") < 0) {
3115 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3120 /* test if stream is OK (test needed because several SETUP needs
3121 to be done for a given file) */
3122 if (rtp_c->stream != stream) {
3123 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3127 /* test if stream is already set up */
3128 if (rtp_c->rtp_ctx[stream_index]) {
3129 rtsp_reply_error(c, RTSP_STATUS_STATE);
3133 /* check transport */
3134 th = find_transport(h, rtp_c->rtp_protocol);
3135 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3136 th->client_port_min <= 0)) {
3137 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3141 /* setup default options */
3142 setup.transport_option[0] = '\0';
3143 dest_addr = rtp_c->from_addr;
3144 dest_addr.sin_port = htons(th->client_port_min);
3147 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3148 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3152 /* now everything is OK, so we can send the connection parameters */
3153 rtsp_reply_header(c, RTSP_STATUS_OK);
3155 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3157 switch(rtp_c->rtp_protocol) {
3158 case RTSP_LOWER_TRANSPORT_UDP:
3159 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3160 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3161 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3162 "client_port=%d-%d;server_port=%d-%d",
3163 th->client_port_min, th->client_port_max,
3164 rtp_port, rtcp_port);
3166 case RTSP_LOWER_TRANSPORT_TCP:
3167 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3168 stream_index * 2, stream_index * 2 + 1);
3173 if (setup.transport_option[0] != '\0')
3174 avio_printf(c->pb, ";%s", setup.transport_option);
3175 avio_printf(c->pb, "\r\n");
3178 avio_printf(c->pb, "\r\n");
3182 /* find an rtp connection by using the session ID. Check consistency
3184 static HTTPContext *find_rtp_session_with_url(const char *url,
3185 const char *session_id)
3193 rtp_c = find_rtp_session(session_id);
3197 /* find which url is asked */
3198 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3202 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3203 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3204 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3205 rtp_c->stream->filename, s);
3206 if(!strncmp(path, buf, sizeof(buf))) {
3207 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3212 if (len > 0 && path[len - 1] == '/' &&
3213 !strncmp(path, rtp_c->stream->filename, len - 1))
3218 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3222 rtp_c = find_rtp_session_with_url(url, h->session_id);
3224 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3228 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3229 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3230 rtp_c->state != HTTPSTATE_READY) {
3231 rtsp_reply_error(c, RTSP_STATUS_STATE);
3235 rtp_c->state = HTTPSTATE_SEND_DATA;
3237 /* now everything is OK, so we can send the connection parameters */
3238 rtsp_reply_header(c, RTSP_STATUS_OK);
3240 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3241 avio_printf(c->pb, "\r\n");
3244 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3248 rtp_c = find_rtp_session_with_url(url, h->session_id);
3250 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3254 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3255 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3256 rtsp_reply_error(c, RTSP_STATUS_STATE);
3260 rtp_c->state = HTTPSTATE_READY;
3261 rtp_c->first_pts = AV_NOPTS_VALUE;
3262 /* now everything is OK, so we can send the connection parameters */
3263 rtsp_reply_header(c, RTSP_STATUS_OK);
3265 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3266 avio_printf(c->pb, "\r\n");
3269 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3273 rtp_c = find_rtp_session_with_url(url, h->session_id);
3275 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3279 /* now everything is OK, so we can send the connection parameters */
3280 rtsp_reply_header(c, RTSP_STATUS_OK);
3282 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3283 avio_printf(c->pb, "\r\n");
3285 /* abort the session */
3286 close_connection(rtp_c);
3290 /********************************************************************/
3293 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3294 FFStream *stream, const char *session_id,
3295 enum RTSPLowerTransport rtp_protocol)
3297 HTTPContext *c = NULL;
3298 const char *proto_str;
3300 /* XXX: should output a warning page when coming
3301 close to the connection limit */
3302 if (nb_connections >= nb_max_connections)
3305 /* add a new connection */
3306 c = av_mallocz(sizeof(HTTPContext));
3311 c->poll_entry = NULL;
3312 c->from_addr = *from_addr;
3313 c->buffer_size = IOBUFFER_INIT_SIZE;
3314 c->buffer = av_malloc(c->buffer_size);
3319 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3320 c->state = HTTPSTATE_READY;
3321 c->is_packetized = 1;
3322 c->rtp_protocol = rtp_protocol;
3324 /* protocol is shown in statistics */
3325 switch(c->rtp_protocol) {
3326 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3327 proto_str = "MCAST";
3329 case RTSP_LOWER_TRANSPORT_UDP:
3332 case RTSP_LOWER_TRANSPORT_TCP:
3339 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3340 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3342 current_bandwidth += stream->bandwidth;
3344 c->next = first_http_ctx;
3356 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3357 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3359 static int rtp_new_av_stream(HTTPContext *c,
3360 int stream_index, struct sockaddr_in *dest_addr,
3361 HTTPContext *rtsp_c)
3363 AVFormatContext *ctx;
3366 URLContext *h = NULL;
3368 int max_packet_size;
3370 /* now we can open the relevant output stream */
3371 ctx = avformat_alloc_context();
3374 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3376 st = av_mallocz(sizeof(AVStream));
3379 ctx->nb_streams = 1;
3380 ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams);
3383 ctx->streams[0] = st;
3385 if (!c->stream->feed ||
3386 c->stream->feed == c->stream)
3387 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3390 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3392 st->priv_data = NULL;
3394 /* build destination RTP address */
3395 ipaddr = inet_ntoa(dest_addr->sin_addr);
3397 switch(c->rtp_protocol) {
3398 case RTSP_LOWER_TRANSPORT_UDP:
3399 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3402 /* XXX: also pass as parameter to function ? */
3403 if (c->stream->is_multicast) {
3405 ttl = c->stream->multicast_ttl;
3408 snprintf(ctx->filename, sizeof(ctx->filename),
3409 "rtp://%s:%d?multicast=1&ttl=%d",
3410 ipaddr, ntohs(dest_addr->sin_port), ttl);
3412 snprintf(ctx->filename, sizeof(ctx->filename),
3413 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3416 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3418 c->rtp_handles[stream_index] = h;
3419 max_packet_size = h->max_packet_size;
3421 case RTSP_LOWER_TRANSPORT_TCP:
3424 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3430 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3431 ipaddr, ntohs(dest_addr->sin_port),
3432 c->stream->filename, stream_index, c->protocol);
3434 /* normally, no packets should be output here, but the packet size may be checked */
3435 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3436 /* XXX: close stream */
3439 if (avformat_write_header(ctx, NULL) < 0) {
3446 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3449 c->rtp_ctx[stream_index] = ctx;
3453 /********************************************************************/
3454 /* ffserver initialization */
3456 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3460 fst = av_mallocz(sizeof(AVStream));
3464 fst->codec = avcodec_alloc_context3(NULL);
3465 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3466 if (codec->extradata_size) {
3467 fst->codec->extradata = av_malloc(codec->extradata_size);
3468 memcpy(fst->codec->extradata, codec->extradata,
3469 codec->extradata_size);
3472 /* live streams must use the actual feed's codec since it may be
3473 * updated later to carry extradata needed by the streams.
3477 fst->priv_data = av_mallocz(sizeof(FeedData));
3478 fst->index = stream->nb_streams;
3479 avpriv_set_pts_info(fst, 33, 1, 90000);
3480 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3481 stream->streams[stream->nb_streams++] = fst;
3485 /* return the stream number in the feed */
3486 static int add_av_stream(FFStream *feed, AVStream *st)
3489 AVCodecContext *av, *av1;
3493 for(i=0;i<feed->nb_streams;i++) {
3494 st = feed->streams[i];
3496 if (av1->codec_id == av->codec_id &&
3497 av1->codec_type == av->codec_type &&
3498 av1->bit_rate == av->bit_rate) {
3500 switch(av->codec_type) {
3501 case AVMEDIA_TYPE_AUDIO:
3502 if (av1->channels == av->channels &&
3503 av1->sample_rate == av->sample_rate)
3506 case AVMEDIA_TYPE_VIDEO:
3507 if (av1->width == av->width &&
3508 av1->height == av->height &&
3509 av1->time_base.den == av->time_base.den &&
3510 av1->time_base.num == av->time_base.num &&
3511 av1->gop_size == av->gop_size)
3520 fst = add_av_stream1(feed, av, 0);
3523 return feed->nb_streams - 1;
3526 static void remove_stream(FFStream *stream)
3530 while (*ps != NULL) {
3538 /* specific mpeg4 handling : we extract the raw parameters */
3539 static void extract_mpeg4_header(AVFormatContext *infile)
3541 int mpeg4_count, i, size;
3547 for(i=0;i<infile->nb_streams;i++) {
3548 st = infile->streams[i];
3549 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3550 st->codec->extradata_size == 0) {
3557 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3558 while (mpeg4_count > 0) {
3559 if (av_read_packet(infile, &pkt) < 0)
3561 st = infile->streams[pkt.stream_index];
3562 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3563 st->codec->extradata_size == 0) {
3564 av_freep(&st->codec->extradata);
3565 /* fill extradata with the header */
3566 /* XXX: we make hard suppositions here ! */
3568 while (p < pkt.data + pkt.size - 4) {
3569 /* stop when vop header is found */
3570 if (p[0] == 0x00 && p[1] == 0x00 &&
3571 p[2] == 0x01 && p[3] == 0xb6) {
3572 size = p - pkt.data;
3573 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3574 st->codec->extradata = av_malloc(size);
3575 st->codec->extradata_size = size;
3576 memcpy(st->codec->extradata, pkt.data, size);
3583 av_free_packet(&pkt);
3587 /* compute the needed AVStream for each file */
3588 static void build_file_streams(void)
3590 FFStream *stream, *stream_next;
3593 /* gather all streams */
3594 for(stream = first_stream; stream != NULL; stream = stream_next) {
3595 AVFormatContext *infile = NULL;
3596 stream_next = stream->next;
3597 if (stream->stream_type == STREAM_TYPE_LIVE &&
3599 /* the stream comes from a file */
3600 /* try to open the file */
3602 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3603 /* specific case : if transport stream output to RTP,
3604 we use a raw transport stream reader */
3605 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3608 http_log("Opening file '%s'\n", stream->feed_filename);
3609 if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) {
3610 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3611 /* remove stream (no need to spend more time on it) */
3613 remove_stream(stream);
3615 /* find all the AVStreams inside and reference them in
3617 if (avformat_find_stream_info(infile, NULL) < 0) {
3618 http_log("Could not find codec parameters from '%s'\n",
3619 stream->feed_filename);
3620 avformat_close_input(&infile);
3623 extract_mpeg4_header(infile);
3625 for(i=0;i<infile->nb_streams;i++)
3626 add_av_stream1(stream, infile->streams[i]->codec, 1);
3628 avformat_close_input(&infile);
3634 /* compute the needed AVStream for each feed */
3635 static void build_feed_streams(void)
3637 FFStream *stream, *feed;
3640 /* gather all streams */
3641 for(stream = first_stream; stream != NULL; stream = stream->next) {
3642 feed = stream->feed;
3644 if (stream->is_feed) {
3645 for(i=0;i<stream->nb_streams;i++)
3646 stream->feed_streams[i] = i;
3648 /* we handle a stream coming from a feed */
3649 for(i=0;i<stream->nb_streams;i++)
3650 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3655 /* create feed files if needed */
3656 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3659 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3660 /* See if it matches */
3661 AVFormatContext *s = NULL;
3664 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {
3665 /* Now see if it matches */
3666 if (s->nb_streams == feed->nb_streams) {
3668 for(i=0;i<s->nb_streams;i++) {
3670 sf = feed->streams[i];
3673 if (sf->index != ss->index ||
3675 http_log("Index & Id do not match for stream %d (%s)\n",
3676 i, feed->feed_filename);
3679 AVCodecContext *ccf, *ccs;
3683 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3685 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3686 http_log("Codecs do not match for stream %d\n", i);
3688 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3689 http_log("Codec bitrates do not match for stream %d\n", i);
3691 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3692 if (CHECK_CODEC(time_base.den) ||
3693 CHECK_CODEC(time_base.num) ||
3694 CHECK_CODEC(width) ||
3695 CHECK_CODEC(height)) {
3696 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3699 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3700 if (CHECK_CODEC(sample_rate) ||
3701 CHECK_CODEC(channels) ||
3702 CHECK_CODEC(frame_size)) {
3703 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3707 http_log("Unknown codec type\n");
3715 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3716 feed->feed_filename, s->nb_streams, feed->nb_streams);
3718 avformat_close_input(&s);
3720 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3721 feed->feed_filename);
3724 if (feed->readonly) {
3725 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3726 feed->feed_filename);
3729 unlink(feed->feed_filename);
3732 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3733 AVFormatContext s1 = {0}, *s = &s1;
3735 if (feed->readonly) {
3736 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3737 feed->feed_filename);
3741 /* only write the header of the ffm file */
3742 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3743 http_log("Could not open output feed file '%s'\n",
3744 feed->feed_filename);
3747 s->oformat = feed->fmt;
3748 s->nb_streams = feed->nb_streams;
3749 s->streams = feed->streams;
3750 if (avformat_write_header(s, NULL) < 0) {
3751 http_log("Container doesn't supports the required parameters\n");
3754 /* XXX: need better api */
3755 av_freep(&s->priv_data);
3758 /* get feed size and write index */
3759 fd = open(feed->feed_filename, O_RDONLY);
3761 http_log("Could not open output feed file '%s'\n",
3762 feed->feed_filename);
3766 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3767 feed->feed_size = lseek(fd, 0, SEEK_END);
3768 /* ensure that we do not wrap before the end of file */
3769 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3770 feed->feed_max_size = feed->feed_size;
3776 /* compute the bandwidth used by each stream */
3777 static void compute_bandwidth(void)
3783 for(stream = first_stream; stream != NULL; stream = stream->next) {
3785 for(i=0;i<stream->nb_streams;i++) {
3786 AVStream *st = stream->streams[i];
3787 switch(st->codec->codec_type) {
3788 case AVMEDIA_TYPE_AUDIO:
3789 case AVMEDIA_TYPE_VIDEO:
3790 bandwidth += st->codec->bit_rate;
3796 stream->bandwidth = (bandwidth + 999) / 1000;
3800 /* add a codec and set the default parameters */
3801 static void add_codec(FFStream *stream, AVCodecContext *av)
3805 /* compute default parameters */
3806 switch(av->codec_type) {
3807 case AVMEDIA_TYPE_AUDIO:
3808 if (av->bit_rate == 0)
3809 av->bit_rate = 64000;
3810 if (av->sample_rate == 0)
3811 av->sample_rate = 22050;
3812 if (av->channels == 0)
3815 case AVMEDIA_TYPE_VIDEO:
3816 if (av->bit_rate == 0)
3817 av->bit_rate = 64000;
3818 if (av->time_base.num == 0){
3819 av->time_base.den = 5;
3820 av->time_base.num = 1;
3822 if (av->width == 0 || av->height == 0) {
3826 /* Bitrate tolerance is less for streaming */
3827 if (av->bit_rate_tolerance == 0)
3828 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3829 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3834 if (av->max_qdiff == 0)
3836 av->qcompress = 0.5;
3839 if (!av->nsse_weight)
3840 av->nsse_weight = 8;
3842 av->frame_skip_cmp = FF_CMP_DCTMAX;
3844 av->me_method = ME_EPZS;
3845 av->rc_buffer_aggressivity = 1.0;
3848 av->rc_eq = "tex^qComp";
3849 if (!av->i_quant_factor)
3850 av->i_quant_factor = -0.8;
3851 if (!av->b_quant_factor)
3852 av->b_quant_factor = 1.25;
3853 if (!av->b_quant_offset)
3854 av->b_quant_offset = 1.25;
3855 if (!av->rc_max_rate)
3856 av->rc_max_rate = av->bit_rate * 2;
3858 if (av->rc_max_rate && !av->rc_buffer_size) {
3859 av->rc_buffer_size = av->rc_max_rate;
3868 st = av_mallocz(sizeof(AVStream));
3871 st->codec = avcodec_alloc_context3(NULL);
3872 stream->streams[stream->nb_streams++] = st;
3873 memcpy(st->codec, av, sizeof(AVCodecContext));
3876 static enum CodecID opt_audio_codec(const char *arg)
3878 AVCodec *p= avcodec_find_encoder_by_name(arg);
3880 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3881 return CODEC_ID_NONE;
3886 static enum CodecID opt_video_codec(const char *arg)
3888 AVCodec *p= avcodec_find_encoder_by_name(arg);
3890 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3891 return CODEC_ID_NONE;
3896 /* simplistic plugin support */
3899 static void load_module(const char *filename)
3902 void (*init_func)(void);
3903 dll = dlopen(filename, RTLD_NOW);
3905 fprintf(stderr, "Could not load module '%s' - %s\n",
3906 filename, dlerror());
3910 init_func = dlsym(dll, "ffserver_module_init");
3913 "%s: init function 'ffserver_module_init()' not found\n",
3922 static int ffserver_opt_default(const char *opt, const char *arg,
3923 AVCodecContext *avctx, int type)
3926 const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);
3928 ret = av_opt_set(avctx, opt, arg, 0);
3932 static int ffserver_opt_preset(const char *arg,
3933 AVCodecContext *avctx, int type,
3934 enum CodecID *audio_id, enum CodecID *video_id)
3937 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3939 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3941 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3942 codec ? codec->name : NULL))) {
3943 fprintf(stderr, "File for preset '%s' not found\n", arg);
3948 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3949 if(line[0] == '#' && !e)
3951 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3953 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
3957 if(!strcmp(tmp, "acodec")){
3958 *audio_id = opt_audio_codec(tmp2);
3959 }else if(!strcmp(tmp, "vcodec")){
3960 *video_id = opt_video_codec(tmp2);
3961 }else if(!strcmp(tmp, "scodec")){
3962 /* opt_subtitle_codec(tmp2); */
3963 }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){
3964 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
3975 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
3976 const char *mime_type)
3978 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
3981 AVOutputFormat *stream_fmt;
3982 char stream_format_name[64];
3984 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
3985 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
3994 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
3998 fprintf(stderr, "%s:%d: ", filename, line_num);
3999 vfprintf(stderr, fmt, vl);
4005 static int parse_ffconfig(const char *filename)
4012 int val, errors, line_num;
4013 FFStream **last_stream, *stream, *redirect;
4014 FFStream **last_feed, *feed, *s;
4015 AVCodecContext audio_enc, video_enc;
4016 enum CodecID audio_id, video_id;
4018 f = fopen(filename, "r");
4026 first_stream = NULL;
4027 last_stream = &first_stream;
4029 last_feed = &first_feed;
4033 audio_id = CODEC_ID_NONE;
4034 video_id = CODEC_ID_NONE;
4036 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4038 if (fgets(line, sizeof(line), f) == NULL)
4044 if (*p == '\0' || *p == '#')
4047 get_arg(cmd, sizeof(cmd), &p);
4049 if (!av_strcasecmp(cmd, "Port")) {
4050 get_arg(arg, sizeof(arg), &p);
4052 if (val < 1 || val > 65536) {
4053 ERROR("Invalid_port: %s\n", arg);
4055 my_http_addr.sin_port = htons(val);
4056 } else if (!av_strcasecmp(cmd, "BindAddress")) {
4057 get_arg(arg, sizeof(arg), &p);
4058 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4059 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4061 } else if (!av_strcasecmp(cmd, "NoDaemon")) {
4062 ffserver_daemon = 0;
4063 } else if (!av_strcasecmp(cmd, "RTSPPort")) {
4064 get_arg(arg, sizeof(arg), &p);
4066 if (val < 1 || val > 65536) {
4067 ERROR("%s:%d: Invalid port: %s\n", arg);
4069 my_rtsp_addr.sin_port = htons(atoi(arg));
4070 } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
4071 get_arg(arg, sizeof(arg), &p);
4072 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4073 ERROR("Invalid host/IP address: %s\n", arg);
4075 } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
4076 get_arg(arg, sizeof(arg), &p);
4078 if (val < 1 || val > 65536) {
4079 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4081 nb_max_http_connections = val;
4082 } else if (!av_strcasecmp(cmd, "MaxClients")) {
4083 get_arg(arg, sizeof(arg), &p);
4085 if (val < 1 || val > nb_max_http_connections) {
4086 ERROR("Invalid MaxClients: %s\n", arg);
4088 nb_max_connections = val;
4090 } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
4092 get_arg(arg, sizeof(arg), &p);
4094 if (llval < 10 || llval > 10000000) {
4095 ERROR("Invalid MaxBandwidth: %s\n", arg);
4097 max_bandwidth = llval;
4098 } else if (!av_strcasecmp(cmd, "CustomLog")) {
4099 if (!ffserver_debug)
4100 get_arg(logfilename, sizeof(logfilename), &p);
4101 } else if (!av_strcasecmp(cmd, "<Feed")) {
4102 /*********************************************/
4103 /* Feed related options */
4105 if (stream || feed) {
4106 ERROR("Already in a tag\n");
4108 feed = av_mallocz(sizeof(FFStream));
4109 get_arg(feed->filename, sizeof(feed->filename), &p);
4110 q = strrchr(feed->filename, '>');
4114 for (s = first_feed; s; s = s->next) {
4115 if (!strcmp(feed->filename, s->filename)) {
4116 ERROR("Feed '%s' already registered\n", s->filename);
4120 feed->fmt = av_guess_format("ffm", NULL, NULL);
4121 /* defaut feed file */
4122 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4123 "/tmp/%s.ffm", feed->filename);
4124 feed->feed_max_size = 5 * 1024 * 1024;
4126 feed->feed = feed; /* self feeding :-) */
4128 /* add in stream list */
4129 *last_stream = feed;
4130 last_stream = &feed->next;
4131 /* add in feed list */
4133 last_feed = &feed->next_feed;
4135 } else if (!av_strcasecmp(cmd, "Launch")) {
4139 feed->child_argv = av_mallocz(64 * sizeof(char *));
4141 for (i = 0; i < 62; i++) {
4142 get_arg(arg, sizeof(arg), &p);
4146 feed->child_argv[i] = av_strdup(arg);
4149 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4151 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4153 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4154 inet_ntoa(my_http_addr.sin_addr),
4155 ntohs(my_http_addr.sin_port), feed->filename);
4157 } else if (!av_strcasecmp(cmd, "ReadOnlyFile")) {
4159 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4161 } else if (stream) {
4162 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4164 } else if (!av_strcasecmp(cmd, "File")) {
4166 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4168 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4169 } else if (!av_strcasecmp(cmd, "Truncate")) {
4171 get_arg(arg, sizeof(arg), &p);
4172 feed->truncate = strtod(arg, NULL);
4174 } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
4179 get_arg(arg, sizeof(arg), &p);
4181 fsize = strtod(p1, &p1);
4182 switch(toupper(*p1)) {
4187 fsize *= 1024 * 1024;
4190 fsize *= 1024 * 1024 * 1024;
4193 feed->feed_max_size = (int64_t)fsize;
4194 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4195 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4198 } else if (!av_strcasecmp(cmd, "</Feed>")) {
4200 ERROR("No corresponding <Feed> for </Feed>\n");
4203 } else if (!av_strcasecmp(cmd, "<Stream")) {
4204 /*********************************************/
4205 /* Stream related options */
4207 if (stream || feed) {
4208 ERROR("Already in a tag\n");
4211 stream = av_mallocz(sizeof(FFStream));
4212 get_arg(stream->filename, sizeof(stream->filename), &p);
4213 q = strrchr(stream->filename, '>');
4217 for (s = first_stream; s; s = s->next) {
4218 if (!strcmp(stream->filename, s->filename)) {
4219 ERROR("Stream '%s' already registered\n", s->filename);
4223 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4224 avcodec_get_context_defaults2(&video_enc, AVMEDIA_TYPE_VIDEO);
4225 avcodec_get_context_defaults2(&audio_enc, AVMEDIA_TYPE_AUDIO);
4227 audio_id = CODEC_ID_NONE;
4228 video_id = CODEC_ID_NONE;
4230 audio_id = stream->fmt->audio_codec;
4231 video_id = stream->fmt->video_codec;
4234 *last_stream = stream;
4235 last_stream = &stream->next;
4237 } else if (!av_strcasecmp(cmd, "Feed")) {
4238 get_arg(arg, sizeof(arg), &p);
4243 while (sfeed != NULL) {
4244 if (!strcmp(sfeed->filename, arg))
4246 sfeed = sfeed->next_feed;
4249 ERROR("feed '%s' not defined\n", arg);
4251 stream->feed = sfeed;
4253 } else if (!av_strcasecmp(cmd, "Format")) {
4254 get_arg(arg, sizeof(arg), &p);
4256 if (!strcmp(arg, "status")) {
4257 stream->stream_type = STREAM_TYPE_STATUS;
4260 stream->stream_type = STREAM_TYPE_LIVE;
4261 /* jpeg cannot be used here, so use single frame jpeg */
4262 if (!strcmp(arg, "jpeg"))
4263 strcpy(arg, "mjpeg");
4264 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4266 ERROR("Unknown Format: %s\n", arg);
4270 audio_id = stream->fmt->audio_codec;
4271 video_id = stream->fmt->video_codec;
4274 } else if (!av_strcasecmp(cmd, "InputFormat")) {
4275 get_arg(arg, sizeof(arg), &p);
4277 stream->ifmt = av_find_input_format(arg);
4278 if (!stream->ifmt) {
4279 ERROR("Unknown input format: %s\n", arg);
4282 } else if (!av_strcasecmp(cmd, "FaviconURL")) {
4283 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4284 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4286 ERROR("FaviconURL only permitted for status streams\n");
4288 } else if (!av_strcasecmp(cmd, "Author")) {
4290 get_arg(stream->author, sizeof(stream->author), &p);
4291 } else if (!av_strcasecmp(cmd, "Comment")) {
4293 get_arg(stream->comment, sizeof(stream->comment), &p);
4294 } else if (!av_strcasecmp(cmd, "Copyright")) {
4296 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4297 } else if (!av_strcasecmp(cmd, "Title")) {
4299 get_arg(stream->title, sizeof(stream->title), &p);
4300 } else if (!av_strcasecmp(cmd, "Preroll")) {
4301 get_arg(arg, sizeof(arg), &p);
4303 stream->prebuffer = atof(arg) * 1000;
4304 } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
4306 stream->send_on_key = 1;
4307 } else if (!av_strcasecmp(cmd, "AudioCodec")) {
4308 get_arg(arg, sizeof(arg), &p);
4309 audio_id = opt_audio_codec(arg);
4310 if (audio_id == CODEC_ID_NONE) {
4311 ERROR("Unknown AudioCodec: %s\n", arg);
4313 } else if (!av_strcasecmp(cmd, "VideoCodec")) {
4314 get_arg(arg, sizeof(arg), &p);
4315 video_id = opt_video_codec(arg);
4316 if (video_id == CODEC_ID_NONE) {
4317 ERROR("Unknown VideoCodec: %s\n", arg);
4319 } else if (!av_strcasecmp(cmd, "MaxTime")) {
4320 get_arg(arg, sizeof(arg), &p);
4322 stream->max_time = atof(arg) * 1000;
4323 } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
4324 get_arg(arg, sizeof(arg), &p);
4326 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4327 } else if (!av_strcasecmp(cmd, "AudioChannels")) {
4328 get_arg(arg, sizeof(arg), &p);
4330 audio_enc.channels = atoi(arg);
4331 } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
4332 get_arg(arg, sizeof(arg), &p);
4334 audio_enc.sample_rate = atoi(arg);
4335 } else if (!av_strcasecmp(cmd, "AudioQuality")) {
4336 get_arg(arg, sizeof(arg), &p);
4338 // audio_enc.quality = atof(arg) * 1000;
4340 } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
4342 int minrate, maxrate;
4344 get_arg(arg, sizeof(arg), &p);
4346 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4347 video_enc.rc_min_rate = minrate * 1000;
4348 video_enc.rc_max_rate = maxrate * 1000;
4350 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4353 } else if (!av_strcasecmp(cmd, "Debug")) {
4355 get_arg(arg, sizeof(arg), &p);
4356 video_enc.debug = strtol(arg,0,0);
4358 } else if (!av_strcasecmp(cmd, "Strict")) {
4360 get_arg(arg, sizeof(arg), &p);
4361 video_enc.strict_std_compliance = atoi(arg);
4363 } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
4365 get_arg(arg, sizeof(arg), &p);
4366 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4368 } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
4370 get_arg(arg, sizeof(arg), &p);
4371 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4373 } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
4374 get_arg(arg, sizeof(arg), &p);
4376 video_enc.bit_rate = atoi(arg) * 1000;
4378 } else if (!av_strcasecmp(cmd, "VideoSize")) {
4379 get_arg(arg, sizeof(arg), &p);
4381 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4382 if ((video_enc.width % 16) != 0 ||
4383 (video_enc.height % 16) != 0) {
4384 ERROR("Image size must be a multiple of 16\n");
4387 } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
4388 get_arg(arg, sizeof(arg), &p);
4390 AVRational frame_rate;
4391 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4392 ERROR("Incorrect frame rate: %s\n", arg);
4394 video_enc.time_base.num = frame_rate.den;
4395 video_enc.time_base.den = frame_rate.num;
4398 } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
4399 get_arg(arg, sizeof(arg), &p);
4401 video_enc.gop_size = atoi(arg);
4402 } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
4404 video_enc.gop_size = 1;
4405 } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
4407 video_enc.mb_decision = FF_MB_DECISION_BITS;
4408 } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
4410 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4411 video_enc.flags |= CODEC_FLAG_4MV;
4413 } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
4414 !av_strcasecmp(cmd, "AVOptionAudio")) {
4416 AVCodecContext *avctx;
4418 get_arg(arg, sizeof(arg), &p);
4419 get_arg(arg2, sizeof(arg2), &p);
4420 if (!av_strcasecmp(cmd, "AVOptionVideo")) {
4422 type = AV_OPT_FLAG_VIDEO_PARAM;
4425 type = AV_OPT_FLAG_AUDIO_PARAM;
4427 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4428 ERROR("AVOption error: %s %s\n", arg, arg2);
4430 } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
4431 !av_strcasecmp(cmd, "AVPresetAudio")) {
4432 AVCodecContext *avctx;
4434 get_arg(arg, sizeof(arg), &p);
4435 if (!av_strcasecmp(cmd, "AVPresetVideo")) {
4437 video_enc.codec_id = video_id;
4438 type = AV_OPT_FLAG_VIDEO_PARAM;
4441 audio_enc.codec_id = audio_id;
4442 type = AV_OPT_FLAG_AUDIO_PARAM;
4444 if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4445 ERROR("AVPreset error: %s\n", arg);
4447 } else if (!av_strcasecmp(cmd, "VideoTag")) {
4448 get_arg(arg, sizeof(arg), &p);
4449 if ((strlen(arg) == 4) && stream)
4450 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4451 } else if (!av_strcasecmp(cmd, "BitExact")) {
4453 video_enc.flags |= CODEC_FLAG_BITEXACT;
4454 } else if (!av_strcasecmp(cmd, "DctFastint")) {
4456 video_enc.dct_algo = FF_DCT_FASTINT;
4457 } else if (!av_strcasecmp(cmd, "IdctSimple")) {
4459 video_enc.idct_algo = FF_IDCT_SIMPLE;
4460 } else if (!av_strcasecmp(cmd, "Qscale")) {
4461 get_arg(arg, sizeof(arg), &p);
4463 video_enc.flags |= CODEC_FLAG_QSCALE;
4464 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4466 } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
4467 get_arg(arg, sizeof(arg), &p);
4469 video_enc.max_qdiff = atoi(arg);
4470 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4471 ERROR("VideoQDiff out of range\n");
4474 } else if (!av_strcasecmp(cmd, "VideoQMax")) {
4475 get_arg(arg, sizeof(arg), &p);
4477 video_enc.qmax = atoi(arg);
4478 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4479 ERROR("VideoQMax out of range\n");
4482 } else if (!av_strcasecmp(cmd, "VideoQMin")) {
4483 get_arg(arg, sizeof(arg), &p);
4485 video_enc.qmin = atoi(arg);
4486 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4487 ERROR("VideoQMin out of range\n");
4490 } else if (!av_strcasecmp(cmd, "LumaElim")) {
4491 get_arg(arg, sizeof(arg), &p);
4493 video_enc.luma_elim_threshold = atoi(arg);
4494 } else if (!av_strcasecmp(cmd, "ChromaElim")) {
4495 get_arg(arg, sizeof(arg), &p);
4497 video_enc.chroma_elim_threshold = atoi(arg);
4498 } else if (!av_strcasecmp(cmd, "LumiMask")) {
4499 get_arg(arg, sizeof(arg), &p);
4501 video_enc.lumi_masking = atof(arg);
4502 } else if (!av_strcasecmp(cmd, "DarkMask")) {
4503 get_arg(arg, sizeof(arg), &p);
4505 video_enc.dark_masking = atof(arg);
4506 } else if (!av_strcasecmp(cmd, "NoVideo")) {
4507 video_id = CODEC_ID_NONE;
4508 } else if (!av_strcasecmp(cmd, "NoAudio")) {
4509 audio_id = CODEC_ID_NONE;
4510 } else if (!av_strcasecmp(cmd, "ACL")) {
4511 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4512 } else if (!av_strcasecmp(cmd, "DynamicACL")) {
4514 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4516 } else if (!av_strcasecmp(cmd, "RTSPOption")) {
4517 get_arg(arg, sizeof(arg), &p);
4519 av_freep(&stream->rtsp_option);
4520 stream->rtsp_option = av_strdup(arg);
4522 } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
4523 get_arg(arg, sizeof(arg), &p);
4525 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4526 ERROR("Invalid host/IP address: %s\n", arg);
4528 stream->is_multicast = 1;
4529 stream->loop = 1; /* default is looping */
4531 } else if (!av_strcasecmp(cmd, "MulticastPort")) {
4532 get_arg(arg, sizeof(arg), &p);
4534 stream->multicast_port = atoi(arg);
4535 } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
4536 get_arg(arg, sizeof(arg), &p);
4538 stream->multicast_ttl = atoi(arg);
4539 } else if (!av_strcasecmp(cmd, "NoLoop")) {
4542 } else if (!av_strcasecmp(cmd, "</Stream>")) {
4544 ERROR("No corresponding <Stream> for </Stream>\n");
4546 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4547 if (audio_id != CODEC_ID_NONE) {
4548 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4549 audio_enc.codec_id = audio_id;
4550 add_codec(stream, &audio_enc);
4552 if (video_id != CODEC_ID_NONE) {
4553 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4554 video_enc.codec_id = video_id;
4555 add_codec(stream, &video_enc);
4560 } else if (!av_strcasecmp(cmd, "<Redirect")) {
4561 /*********************************************/
4563 if (stream || feed || redirect) {
4564 ERROR("Already in a tag\n");
4566 redirect = av_mallocz(sizeof(FFStream));
4567 *last_stream = redirect;
4568 last_stream = &redirect->next;
4570 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4571 q = strrchr(redirect->filename, '>');
4574 redirect->stream_type = STREAM_TYPE_REDIRECT;
4576 } else if (!av_strcasecmp(cmd, "URL")) {
4578 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4579 } else if (!av_strcasecmp(cmd, "</Redirect>")) {
4581 ERROR("No corresponding <Redirect> for </Redirect>\n");
4583 if (!redirect->feed_filename[0]) {
4584 ERROR("No URL found for <Redirect>\n");
4588 } else if (!av_strcasecmp(cmd, "LoadModule")) {
4589 get_arg(arg, sizeof(arg), &p);
4593 ERROR("Module support not compiled into this version: '%s'\n", arg);
4596 ERROR("Incorrect keyword: '%s'\n", cmd);
4608 static void handle_child_exit(int sig)
4613 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4616 for (feed = first_feed; feed; feed = feed->next) {
4617 if (feed->pid == pid) {
4618 int uptime = time(0) - feed->pid_start;
4621 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4624 /* Turn off any more restarts */
4625 feed->child_argv = 0;
4630 need_to_start_children = 1;
4633 static void opt_debug(void)
4636 ffserver_daemon = 0;
4637 logfilename[0] = '-';
4640 static int opt_help(const char *opt, const char *arg)
4642 printf("usage: ffserver [options]\n"
4643 "Hyper fast multi format Audio/Video streaming server\n");
4645 show_help_options(options, "Main options:\n", 0, 0);
4649 static const OptionDef options[] = {
4650 #include "cmdutils_common_opts.h"
4651 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4652 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4653 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4657 int main(int argc, char **argv)
4659 struct sigaction sigact;
4661 parse_loglevel(argc, argv, options);
4663 avformat_network_init();
4665 show_banner(argc, argv, options);
4667 my_program_name = argv[0];
4668 my_program_dir = getcwd(0, 0);
4669 ffserver_daemon = 1;
4671 parse_options(NULL, argc, argv, options, NULL);
4673 unsetenv("http_proxy"); /* Kill the http_proxy */
4675 av_lfg_init(&random_state, av_get_random_seed());
4677 memset(&sigact, 0, sizeof(sigact));
4678 sigact.sa_handler = handle_child_exit;
4679 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4680 sigaction(SIGCHLD, &sigact, 0);
4682 if (parse_ffconfig(config_filename) < 0) {
4683 fprintf(stderr, "Incorrect config file - exiting.\n");
4687 /* open log file if needed */
4688 if (logfilename[0] != '\0') {
4689 if (!strcmp(logfilename, "-"))
4692 logfile = fopen(logfilename, "a");
4693 av_log_set_callback(http_av_log);
4696 build_file_streams();
4698 build_feed_streams();
4700 compute_bandwidth();
4702 /* put the process in background and detach it from its TTY */
4703 if (ffserver_daemon) {
4710 } else if (pid > 0) {
4717 open("/dev/null", O_RDWR);
4718 if (strcmp(logfilename, "-") != 0) {
4728 signal(SIGPIPE, SIG_IGN);
4730 if (ffserver_daemon)
4733 if (http_server() < 0) {
4734 http_log("Could not start server\n");