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
33 #include "libavformat/avformat.h"
34 // FIXME those are internal headers, ffserver _really_ shouldn't use them
35 #include "libavformat/ffm.h"
36 #include "libavformat/network.h"
37 #include "libavformat/os_support.h"
38 #include "libavformat/rtpdec.h"
39 #include "libavformat/rtpproto.h"
40 #include "libavformat/rtsp.h"
41 #include "libavformat/avio_internal.h"
42 #include "libavformat/internal.h"
43 #include "libavformat/url.h"
45 #include "libavutil/avassert.h"
46 #include "libavutil/avstring.h"
47 #include "libavutil/lfg.h"
48 #include "libavutil/dict.h"
49 #include "libavutil/intreadwrite.h"
50 #include "libavutil/mathematics.h"
51 #include "libavutil/pixdesc.h"
52 #include "libavutil/random_seed.h"
53 #include "libavutil/parseutils.h"
54 #include "libavutil/opt.h"
55 #include "libavutil/time.h"
60 #include <sys/ioctl.h>
71 const char program_name[] = "ffserver";
72 const int program_birth_year = 2000;
74 static const OptionDef options[];
77 HTTPSTATE_WAIT_REQUEST,
78 HTTPSTATE_SEND_HEADER,
79 HTTPSTATE_SEND_DATA_HEADER,
80 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
81 HTTPSTATE_SEND_DATA_TRAILER,
82 HTTPSTATE_RECEIVE_DATA,
83 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
86 RTSPSTATE_WAIT_REQUEST,
88 RTSPSTATE_SEND_PACKET,
91 static const char *http_state[] = {
107 #define MAX_STREAMS 20
109 #define IOBUFFER_INIT_SIZE 8192
111 /* timeouts are in ms */
112 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
113 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
115 #define SYNC_TIMEOUT (10 * 1000)
117 typedef struct RTSPActionServerSetup {
119 char transport_option[512];
120 } RTSPActionServerSetup;
123 int64_t count1, count2;
124 int64_t time1, time2;
127 /* context associated with one connection */
128 typedef struct HTTPContext {
129 enum HTTPState state;
130 int fd; /* socket file descriptor */
131 struct sockaddr_in from_addr; /* origin */
132 struct pollfd *poll_entry; /* used when polling */
134 uint8_t *buffer_ptr, *buffer_end;
137 int chunked_encoding;
138 int chunk_size; /* 0 if it needs to be read */
139 struct HTTPContext *next;
140 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
144 /* input format handling */
145 AVFormatContext *fmt_in;
146 int64_t start_time; /* In milliseconds - this wraps fairly often */
147 int64_t first_pts; /* initial pts value */
148 int64_t cur_pts; /* current pts value from the stream in us */
149 int64_t cur_frame_duration; /* duration of the current frame in us */
150 int cur_frame_bytes; /* output frame size, needed to compute
151 the time at which we send each
153 int pts_stream_index; /* stream we choose as clock reference */
154 int64_t cur_clock; /* current clock reference value in us */
155 /* output format handling */
156 struct FFStream *stream;
157 /* -1 is invalid stream */
158 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
159 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
161 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
162 int last_packet_sent; /* true if last data packet was sent */
164 DataRateData datarate;
171 int is_packetized; /* if true, the stream is packetized */
172 int packet_stream_index; /* current stream for output in state machine */
174 /* RTSP state specific */
175 uint8_t *pb_buffer; /* XXX: use that in all the code */
177 int seq; /* RTSP sequence number */
179 /* RTP state specific */
180 enum RTSPLowerTransport rtp_protocol;
181 char session_id[32]; /* session id */
182 AVFormatContext *rtp_ctx[MAX_STREAMS];
184 /* RTP/UDP specific */
185 URLContext *rtp_handles[MAX_STREAMS];
187 /* RTP/TCP specific */
188 struct HTTPContext *rtsp_c;
189 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
192 /* each generated stream is described here */
196 STREAM_TYPE_REDIRECT,
199 enum IPAddressAction {
204 typedef struct IPAddressACL {
205 struct IPAddressACL *next;
206 enum IPAddressAction action;
207 /* These are in host order */
208 struct in_addr first;
212 /* description of each stream of the ffserver.conf file */
213 typedef struct FFStream {
214 enum StreamType stream_type;
215 char filename[1024]; /* stream filename */
216 struct FFStream *feed; /* feed we are using (can be null if
218 AVDictionary *in_opts; /* input parameters */
219 AVInputFormat *ifmt; /* if non NULL, force input format */
222 char dynamic_acl[1024];
224 int prebuffer; /* Number of millseconds early to start */
225 int64_t max_time; /* Number of milliseconds to run */
227 AVStream *streams[MAX_STREAMS];
228 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
229 char feed_filename[1024]; /* file name of the feed storage, or
230 input file name for a stream */
235 pid_t pid; /* Of ffmpeg process */
236 time_t pid_start; /* Of ffmpeg process */
238 struct FFStream *next;
239 unsigned bandwidth; /* bandwidth, in kbits/s */
242 /* multicast specific */
244 struct in_addr multicast_ip;
245 int multicast_port; /* first port used for multicast */
247 int loop; /* if true, send the stream in loops (only meaningful if file) */
250 int feed_opened; /* true if someone is writing to the feed */
251 int is_feed; /* true if it is a feed */
252 int readonly; /* True if writing is prohibited to the file */
253 int truncate; /* True if feeder connection truncate the feed file */
255 int64_t bytes_served;
256 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
257 int64_t feed_write_index; /* current write position in feed (it wraps around) */
258 int64_t feed_size; /* current size of feed */
259 struct FFStream *next_feed;
262 typedef struct FeedData {
263 long long data_count;
264 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
267 static struct sockaddr_in my_http_addr;
268 static struct sockaddr_in my_rtsp_addr;
270 static char logfilename[1024];
271 static HTTPContext *first_http_ctx;
272 static FFStream *first_feed; /* contains only feeds */
273 static FFStream *first_stream; /* contains all streams, including feeds */
275 static void new_connection(int server_fd, int is_rtsp);
276 static void close_connection(HTTPContext *c);
279 static int handle_connection(HTTPContext *c);
280 static int http_parse_request(HTTPContext *c);
281 static int http_send_data(HTTPContext *c);
282 static void compute_status(HTTPContext *c);
283 static int open_input_stream(HTTPContext *c, const char *info);
284 static int http_start_receive_data(HTTPContext *c);
285 static int http_receive_data(HTTPContext *c);
288 static int rtsp_parse_request(HTTPContext *c);
289 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
290 static void rtsp_cmd_options(HTTPContext *c, const char *url);
291 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
292 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
293 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
294 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
297 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
298 struct in_addr my_ip);
301 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
302 FFStream *stream, const char *session_id,
303 enum RTSPLowerTransport rtp_protocol);
304 static int rtp_new_av_stream(HTTPContext *c,
305 int stream_index, struct sockaddr_in *dest_addr,
306 HTTPContext *rtsp_c);
308 static const char *my_program_name;
310 static const char *config_filename;
312 static int ffserver_debug;
313 static int no_launch;
314 static int need_to_start_children;
316 /* maximum number of simultaneous HTTP connections */
317 static unsigned int nb_max_http_connections = 2000;
318 static unsigned int nb_max_connections = 5;
319 static unsigned int nb_connections;
321 static uint64_t max_bandwidth = 1000;
322 static uint64_t current_bandwidth;
324 static int64_t cur_time; // Making this global saves on passing it around everywhere
326 static AVLFG random_state;
328 static FILE *logfile = NULL;
330 static void htmlstrip(char *s) {
332 s += strspn(s, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ,. ");
338 static int64_t ffm_read_write_index(int fd)
342 if (lseek(fd, 8, SEEK_SET) < 0)
344 if (read(fd, buf, 8) != 8)
349 static int ffm_write_write_index(int fd, int64_t pos)
355 buf[i] = (pos >> (56 - i * 8)) & 0xff;
356 if (lseek(fd, 8, SEEK_SET) < 0)
358 if (write(fd, buf, 8) != 8)
363 static void ffm_set_write_index(AVFormatContext *s, int64_t pos,
366 FFMContext *ffm = s->priv_data;
367 ffm->write_index = pos;
368 ffm->file_size = file_size;
371 /* FIXME: make ffserver work with IPv6 */
372 /* resolve host with also IP address parsing */
373 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
376 if (!ff_inet_aton(hostname, sin_addr)) {
378 struct addrinfo *ai, *cur;
379 struct addrinfo hints = { 0 };
380 hints.ai_family = AF_INET;
381 if (getaddrinfo(hostname, NULL, &hints, &ai))
383 /* getaddrinfo returns a linked list of addrinfo structs.
384 * Even if we set ai_family = AF_INET above, make sure
385 * that the returned one actually is of the correct type. */
386 for (cur = ai; cur; cur = cur->ai_next) {
387 if (cur->ai_family == AF_INET) {
388 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
397 hp = gethostbyname(hostname);
400 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
406 static char *ctime1(char *buf2, int buf_size)
413 av_strlcpy(buf2, p, buf_size);
414 p = buf2 + strlen(p) - 1;
420 static void http_vlog(const char *fmt, va_list vargs)
422 static int print_prefix = 1;
426 ctime1(buf, sizeof(buf));
427 fprintf(logfile, "%s ", buf);
429 print_prefix = strstr(fmt, "\n") != NULL;
430 vfprintf(logfile, fmt, vargs);
436 __attribute__ ((format (printf, 1, 2)))
438 static void http_log(const char *fmt, ...)
441 va_start(vargs, fmt);
442 http_vlog(fmt, vargs);
446 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
448 static int print_prefix = 1;
449 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
450 if (level > av_log_get_level())
452 if (print_prefix && avc)
453 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
454 print_prefix = strstr(fmt, "\n") != NULL;
455 http_vlog(fmt, vargs);
458 static void log_connection(HTTPContext *c)
463 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
464 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
465 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
468 static void update_datarate(DataRateData *drd, int64_t count)
470 if (!drd->time1 && !drd->count1) {
471 drd->time1 = drd->time2 = cur_time;
472 drd->count1 = drd->count2 = count;
473 } else if (cur_time - drd->time2 > 5000) {
474 drd->time1 = drd->time2;
475 drd->count1 = drd->count2;
476 drd->time2 = cur_time;
481 /* In bytes per second */
482 static int compute_datarate(DataRateData *drd, int64_t count)
484 if (cur_time == drd->time1)
487 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
491 static void start_children(FFStream *feed)
496 for (; feed; feed = feed->next) {
497 if (feed->child_argv && !feed->pid) {
498 feed->pid_start = time(0);
503 http_log("Unable to create children\n");
512 av_strlcpy(pathname, my_program_name, sizeof(pathname));
514 slash = strrchr(pathname, '/');
519 strcpy(slash, "ffmpeg");
521 http_log("Launch command line: ");
522 http_log("%s ", pathname);
523 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
524 http_log("%s ", feed->child_argv[i]);
527 for (i = 3; i < 256; i++)
530 if (!ffserver_debug) {
531 if (!freopen("/dev/null", "r", stdin))
532 http_log("failed to redirect STDIN to /dev/null\n;");
533 if (!freopen("/dev/null", "w", stdout))
534 http_log("failed to redirect STDOUT to /dev/null\n;");
535 if (!freopen("/dev/null", "w", stderr))
536 http_log("failed to redirect STDERR to /dev/null\n;");
539 signal(SIGPIPE, SIG_DFL);
541 execvp(pathname, feed->child_argv);
549 /* open a listening socket */
550 static int socket_open_listen(struct sockaddr_in *my_addr)
554 server_fd = socket(AF_INET,SOCK_STREAM,0);
561 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
563 my_addr->sin_family = AF_INET;
564 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
566 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
568 closesocket(server_fd);
572 if (listen (server_fd, 5) < 0) {
574 closesocket(server_fd);
577 ff_socket_nonblock(server_fd, 1);
582 /* start all multicast streams */
583 static void start_multicast(void)
588 struct sockaddr_in dest_addr = {0};
589 int default_port, stream_index;
592 for(stream = first_stream; stream != NULL; stream = stream->next) {
593 if (stream->is_multicast) {
594 unsigned random0 = av_lfg_get(&random_state);
595 unsigned random1 = av_lfg_get(&random_state);
596 /* open the RTP connection */
597 snprintf(session_id, sizeof(session_id), "%08x%08x",
600 /* choose a port if none given */
601 if (stream->multicast_port == 0) {
602 stream->multicast_port = default_port;
606 dest_addr.sin_family = AF_INET;
607 dest_addr.sin_addr = stream->multicast_ip;
608 dest_addr.sin_port = htons(stream->multicast_port);
610 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
611 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
615 if (open_input_stream(rtp_c, "") < 0) {
616 http_log("Could not open input stream for stream '%s'\n",
621 /* open each RTP stream */
622 for(stream_index = 0; stream_index < stream->nb_streams;
624 dest_addr.sin_port = htons(stream->multicast_port +
626 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
627 http_log("Could not open output stream '%s/streamid=%d'\n",
628 stream->filename, stream_index);
633 /* change state to send data */
634 rtp_c->state = HTTPSTATE_SEND_DATA;
639 /* main loop of the http server */
640 static int http_server(void)
642 int server_fd = 0, rtsp_server_fd = 0;
643 int ret, delay, delay1;
644 struct pollfd *poll_table, *poll_entry;
645 HTTPContext *c, *c_next;
647 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
648 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
652 if (my_http_addr.sin_port) {
653 server_fd = socket_open_listen(&my_http_addr);
658 if (my_rtsp_addr.sin_port) {
659 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
660 if (rtsp_server_fd < 0)
664 if (!rtsp_server_fd && !server_fd) {
665 http_log("HTTP and RTSP disabled.\n");
669 http_log("FFserver started.\n");
671 start_children(first_feed);
676 poll_entry = poll_table;
678 poll_entry->fd = server_fd;
679 poll_entry->events = POLLIN;
682 if (rtsp_server_fd) {
683 poll_entry->fd = rtsp_server_fd;
684 poll_entry->events = POLLIN;
688 /* wait for events on each HTTP handle */
695 case HTTPSTATE_SEND_HEADER:
696 case RTSPSTATE_SEND_REPLY:
697 case RTSPSTATE_SEND_PACKET:
698 c->poll_entry = poll_entry;
700 poll_entry->events = POLLOUT;
703 case HTTPSTATE_SEND_DATA_HEADER:
704 case HTTPSTATE_SEND_DATA:
705 case HTTPSTATE_SEND_DATA_TRAILER:
706 if (!c->is_packetized) {
707 /* for TCP, we output as much as we can (may need to put a limit) */
708 c->poll_entry = poll_entry;
710 poll_entry->events = POLLOUT;
713 /* when ffserver is doing the timing, we work by
714 looking at which packet need to be sent every
716 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
721 case HTTPSTATE_WAIT_REQUEST:
722 case HTTPSTATE_RECEIVE_DATA:
723 case HTTPSTATE_WAIT_FEED:
724 case RTSPSTATE_WAIT_REQUEST:
725 /* need to catch errors */
726 c->poll_entry = poll_entry;
728 poll_entry->events = POLLIN;/* Maybe this will work */
732 c->poll_entry = NULL;
738 /* wait for an event on one connection. We poll at least every
739 second to handle timeouts */
741 ret = poll(poll_table, poll_entry - poll_table, delay);
742 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
743 ff_neterrno() != AVERROR(EINTR))
747 cur_time = av_gettime() / 1000;
749 if (need_to_start_children) {
750 need_to_start_children = 0;
751 start_children(first_feed);
754 /* now handle the events */
755 for(c = first_http_ctx; c != NULL; c = c_next) {
757 if (handle_connection(c) < 0) {
758 /* close and free the connection */
764 poll_entry = poll_table;
766 /* new HTTP connection request ? */
767 if (poll_entry->revents & POLLIN)
768 new_connection(server_fd, 0);
771 if (rtsp_server_fd) {
772 /* new RTSP connection request ? */
773 if (poll_entry->revents & POLLIN)
774 new_connection(rtsp_server_fd, 1);
779 /* start waiting for a new HTTP/RTSP request */
780 static void start_wait_request(HTTPContext *c, int is_rtsp)
782 c->buffer_ptr = c->buffer;
783 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
786 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
787 c->state = RTSPSTATE_WAIT_REQUEST;
789 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
790 c->state = HTTPSTATE_WAIT_REQUEST;
794 static void http_send_too_busy_reply(int fd)
797 int len = snprintf(buffer, sizeof(buffer),
798 "HTTP/1.0 503 Server too busy\r\n"
799 "Content-type: text/html\r\n"
801 "<html><head><title>Too busy</title></head><body>\r\n"
802 "<p>The server is too busy to serve your request at this time.</p>\r\n"
803 "<p>The number of current connections is %u, and this exceeds the limit of %u.</p>\r\n"
804 "</body></html>\r\n",
805 nb_connections, nb_max_connections);
806 av_assert0(len < sizeof(buffer));
807 send(fd, buffer, len, 0);
811 static void new_connection(int server_fd, int is_rtsp)
813 struct sockaddr_in from_addr;
816 HTTPContext *c = NULL;
818 len = sizeof(from_addr);
819 fd = accept(server_fd, (struct sockaddr *)&from_addr,
822 http_log("error during accept %s\n", strerror(errno));
825 ff_socket_nonblock(fd, 1);
827 if (nb_connections >= nb_max_connections) {
828 http_send_too_busy_reply(fd);
832 /* add a new connection */
833 c = av_mallocz(sizeof(HTTPContext));
838 c->poll_entry = NULL;
839 c->from_addr = from_addr;
840 c->buffer_size = IOBUFFER_INIT_SIZE;
841 c->buffer = av_malloc(c->buffer_size);
845 c->next = first_http_ctx;
849 start_wait_request(c, is_rtsp);
861 static void close_connection(HTTPContext *c)
863 HTTPContext **cp, *c1;
865 AVFormatContext *ctx;
869 /* remove connection from list */
870 cp = &first_http_ctx;
871 while ((*cp) != NULL) {
879 /* remove references, if any (XXX: do it faster) */
880 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
885 /* remove connection associated resources */
889 /* close each frame parser */
890 for(i=0;i<c->fmt_in->nb_streams;i++) {
891 st = c->fmt_in->streams[i];
892 if (st->codec->codec)
893 avcodec_close(st->codec);
895 avformat_close_input(&c->fmt_in);
898 /* free RTP output streams if any */
901 nb_streams = c->stream->nb_streams;
903 for(i=0;i<nb_streams;i++) {
906 av_write_trailer(ctx);
907 av_dict_free(&ctx->metadata);
908 av_free(ctx->streams[0]);
911 h = c->rtp_handles[i];
918 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
921 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
922 av_write_trailer(ctx);
923 av_freep(&c->pb_buffer);
924 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
929 for(i=0; i<ctx->nb_streams; i++)
930 av_free(ctx->streams[i]);
931 av_freep(&ctx->streams);
932 av_freep(&ctx->priv_data);
934 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
935 current_bandwidth -= c->stream->bandwidth;
937 /* signal that there is no feed if we are the feeder socket */
938 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
939 c->stream->feed_opened = 0;
943 av_freep(&c->pb_buffer);
944 av_freep(&c->packet_buffer);
950 static int handle_connection(HTTPContext *c)
955 case HTTPSTATE_WAIT_REQUEST:
956 case RTSPSTATE_WAIT_REQUEST:
958 if ((c->timeout - cur_time) < 0)
960 if (c->poll_entry->revents & (POLLERR | POLLHUP))
963 /* no need to read if no events */
964 if (!(c->poll_entry->revents & POLLIN))
968 len = recv(c->fd, c->buffer_ptr, 1, 0);
970 if (ff_neterrno() != AVERROR(EAGAIN) &&
971 ff_neterrno() != AVERROR(EINTR))
973 } else if (len == 0) {
976 /* search for end of request. */
978 c->buffer_ptr += len;
980 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
981 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
982 /* request found : parse it and reply */
983 if (c->state == HTTPSTATE_WAIT_REQUEST) {
984 ret = http_parse_request(c);
986 ret = rtsp_parse_request(c);
990 } else if (ptr >= c->buffer_end) {
991 /* request too long: cannot do anything */
993 } else goto read_loop;
997 case HTTPSTATE_SEND_HEADER:
998 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1001 /* no need to write if no events */
1002 if (!(c->poll_entry->revents & POLLOUT))
1004 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1006 if (ff_neterrno() != AVERROR(EAGAIN) &&
1007 ff_neterrno() != AVERROR(EINTR)) {
1008 /* error : close connection */
1009 av_freep(&c->pb_buffer);
1013 c->buffer_ptr += len;
1015 c->stream->bytes_served += len;
1016 c->data_count += len;
1017 if (c->buffer_ptr >= c->buffer_end) {
1018 av_freep(&c->pb_buffer);
1019 /* if error, exit */
1022 /* all the buffer was sent : synchronize to the incoming stream */
1023 c->state = HTTPSTATE_SEND_DATA_HEADER;
1024 c->buffer_ptr = c->buffer_end = c->buffer;
1029 case HTTPSTATE_SEND_DATA:
1030 case HTTPSTATE_SEND_DATA_HEADER:
1031 case HTTPSTATE_SEND_DATA_TRAILER:
1032 /* for packetized output, we consider we can always write (the
1033 input streams sets the speed). It may be better to verify
1034 that we do not rely too much on the kernel queues */
1035 if (!c->is_packetized) {
1036 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1039 /* no need to read if no events */
1040 if (!(c->poll_entry->revents & POLLOUT))
1043 if (http_send_data(c) < 0)
1045 /* close connection if trailer sent */
1046 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1049 case HTTPSTATE_RECEIVE_DATA:
1050 /* no need to read if no events */
1051 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1053 if (!(c->poll_entry->revents & POLLIN))
1055 if (http_receive_data(c) < 0)
1058 case HTTPSTATE_WAIT_FEED:
1059 /* no need to read if no events */
1060 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1063 /* nothing to do, we'll be waken up by incoming feed packets */
1066 case RTSPSTATE_SEND_REPLY:
1067 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1068 av_freep(&c->pb_buffer);
1071 /* no need to write if no events */
1072 if (!(c->poll_entry->revents & POLLOUT))
1074 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1076 if (ff_neterrno() != AVERROR(EAGAIN) &&
1077 ff_neterrno() != AVERROR(EINTR)) {
1078 /* error : close connection */
1079 av_freep(&c->pb_buffer);
1083 c->buffer_ptr += len;
1084 c->data_count += len;
1085 if (c->buffer_ptr >= c->buffer_end) {
1086 /* all the buffer was sent : wait for a new request */
1087 av_freep(&c->pb_buffer);
1088 start_wait_request(c, 1);
1092 case RTSPSTATE_SEND_PACKET:
1093 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1094 av_freep(&c->packet_buffer);
1097 /* no need to write if no events */
1098 if (!(c->poll_entry->revents & POLLOUT))
1100 len = send(c->fd, c->packet_buffer_ptr,
1101 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1103 if (ff_neterrno() != AVERROR(EAGAIN) &&
1104 ff_neterrno() != AVERROR(EINTR)) {
1105 /* error : close connection */
1106 av_freep(&c->packet_buffer);
1110 c->packet_buffer_ptr += len;
1111 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1112 /* all the buffer was sent : wait for a new request */
1113 av_freep(&c->packet_buffer);
1114 c->state = RTSPSTATE_WAIT_REQUEST;
1118 case HTTPSTATE_READY:
1127 static int extract_rates(char *rates, int ratelen, const char *request)
1131 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1132 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1133 const char *q = p + 7;
1135 while (*q && *q != '\n' && av_isspace(*q))
1138 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1144 memset(rates, 0xff, ratelen);
1147 while (*q && *q != '\n' && *q != ':')
1150 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1154 if (stream_no < ratelen && stream_no >= 0)
1155 rates[stream_no] = rate_no;
1157 while (*q && *q != '\n' && !av_isspace(*q))
1164 p = strchr(p, '\n');
1174 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1177 int best_bitrate = 100000000;
1180 for (i = 0; i < feed->nb_streams; i++) {
1181 AVCodecContext *feed_codec = feed->streams[i]->codec;
1183 if (feed_codec->codec_id != codec->codec_id ||
1184 feed_codec->sample_rate != codec->sample_rate ||
1185 feed_codec->width != codec->width ||
1186 feed_codec->height != codec->height)
1189 /* Potential stream */
1191 /* We want the fastest stream less than bit_rate, or the slowest
1192 * faster than bit_rate
1195 if (feed_codec->bit_rate <= bit_rate) {
1196 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1197 best_bitrate = feed_codec->bit_rate;
1201 if (feed_codec->bit_rate < best_bitrate) {
1202 best_bitrate = feed_codec->bit_rate;
1211 static int modify_current_stream(HTTPContext *c, char *rates)
1214 FFStream *req = c->stream;
1215 int action_required = 0;
1217 /* Not much we can do for a feed */
1221 for (i = 0; i < req->nb_streams; i++) {
1222 AVCodecContext *codec = req->streams[i]->codec;
1226 c->switch_feed_streams[i] = req->feed_streams[i];
1229 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1232 /* Wants off or slow */
1233 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1235 /* This doesn't work well when it turns off the only stream! */
1236 c->switch_feed_streams[i] = -2;
1237 c->feed_streams[i] = -2;
1242 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1243 action_required = 1;
1246 return action_required;
1249 /* XXX: factorize in utils.c ? */
1250 /* XXX: take care with different space meaning */
1251 static void skip_spaces(const char **pp)
1255 while (*p == ' ' || *p == '\t')
1260 static void get_word(char *buf, int buf_size, const char **pp)
1268 while (!av_isspace(*p) && *p != '\0') {
1269 if ((q - buf) < buf_size - 1)
1278 static void get_arg(char *buf, int buf_size, const char **pp)
1285 while (av_isspace(*p)) p++;
1288 if (*p == '\"' || *p == '\'')
1300 if ((q - buf) < buf_size - 1)
1305 if (quote && *p == quote)
1310 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1311 const char *p, const char *filename, int line_num)
1317 get_arg(arg, sizeof(arg), &p);
1318 if (av_strcasecmp(arg, "allow") == 0)
1319 acl.action = IP_ALLOW;
1320 else if (av_strcasecmp(arg, "deny") == 0)
1321 acl.action = IP_DENY;
1323 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1324 filename, line_num, arg);
1328 get_arg(arg, sizeof(arg), &p);
1330 if (resolve_host(&acl.first, arg) != 0) {
1331 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1332 filename, line_num, arg);
1335 acl.last = acl.first;
1337 get_arg(arg, sizeof(arg), &p);
1340 if (resolve_host(&acl.last, arg) != 0) {
1341 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1342 filename, line_num, arg);
1348 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1349 IPAddressACL **naclp = 0;
1355 naclp = &stream->acl;
1361 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1362 filename, line_num);
1368 naclp = &(*naclp)->next;
1376 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1381 IPAddressACL *acl = NULL;
1385 f = fopen(stream->dynamic_acl, "r");
1387 perror(stream->dynamic_acl);
1391 acl = av_mallocz(sizeof(IPAddressACL));
1395 if (fgets(line, sizeof(line), f) == NULL)
1399 while (av_isspace(*p))
1401 if (*p == '\0' || *p == '#')
1403 get_arg(cmd, sizeof(cmd), &p);
1405 if (!av_strcasecmp(cmd, "ACL"))
1406 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1413 static void free_acl_list(IPAddressACL *in_acl)
1415 IPAddressACL *pacl,*pacl2;
1425 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1427 enum IPAddressAction last_action = IP_DENY;
1429 struct in_addr *src = &c->from_addr.sin_addr;
1430 unsigned long src_addr = src->s_addr;
1432 for (acl = in_acl; acl; acl = acl->next) {
1433 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1434 return (acl->action == IP_ALLOW) ? 1 : 0;
1435 last_action = acl->action;
1438 /* Nothing matched, so return not the last action */
1439 return (last_action == IP_DENY) ? 1 : 0;
1442 static int validate_acl(FFStream *stream, HTTPContext *c)
1448 /* if stream->acl is null validate_acl_list will return 1 */
1449 ret = validate_acl_list(stream->acl, c);
1451 if (stream->dynamic_acl[0]) {
1452 acl = parse_dynamic_acl(stream, c);
1454 ret = validate_acl_list(acl, c);
1462 /* compute the real filename of a file by matching it without its
1463 extensions to all the stream filenames */
1464 static void compute_real_filename(char *filename, int max_size)
1471 /* compute filename by matching without the file extensions */
1472 av_strlcpy(file1, filename, sizeof(file1));
1473 p = strrchr(file1, '.');
1476 for(stream = first_stream; stream != NULL; stream = stream->next) {
1477 av_strlcpy(file2, stream->filename, sizeof(file2));
1478 p = strrchr(file2, '.');
1481 if (!strcmp(file1, file2)) {
1482 av_strlcpy(filename, stream->filename, max_size);
1497 /* parse http request and prepare header */
1498 static int http_parse_request(HTTPContext *c)
1502 enum RedirType redir_type;
1504 char info[1024], filename[1024];
1508 const char *mime_type;
1512 const char *useragent = 0;
1515 get_word(cmd, sizeof(cmd), &p);
1516 av_strlcpy(c->method, cmd, sizeof(c->method));
1518 if (!strcmp(cmd, "GET"))
1520 else if (!strcmp(cmd, "POST"))
1525 get_word(url, sizeof(url), &p);
1526 av_strlcpy(c->url, url, sizeof(c->url));
1528 get_word(protocol, sizeof(protocol), (const char **)&p);
1529 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1532 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1535 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1537 /* find the filename and the optional info string in the request */
1538 p1 = strchr(url, '?');
1540 av_strlcpy(info, p1, sizeof(info));
1545 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1547 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1548 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1550 if (*useragent && *useragent != '\n' && av_isspace(*useragent))
1554 p = strchr(p, '\n');
1561 redir_type = REDIR_NONE;
1562 if (av_match_ext(filename, "asx")) {
1563 redir_type = REDIR_ASX;
1564 filename[strlen(filename)-1] = 'f';
1565 } else if (av_match_ext(filename, "asf") &&
1566 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1567 /* if this isn't WMP or lookalike, return the redirector file */
1568 redir_type = REDIR_ASF;
1569 } else if (av_match_ext(filename, "rpm,ram")) {
1570 redir_type = REDIR_RAM;
1571 strcpy(filename + strlen(filename)-2, "m");
1572 } else if (av_match_ext(filename, "rtsp")) {
1573 redir_type = REDIR_RTSP;
1574 compute_real_filename(filename, sizeof(filename) - 1);
1575 } else if (av_match_ext(filename, "sdp")) {
1576 redir_type = REDIR_SDP;
1577 compute_real_filename(filename, sizeof(filename) - 1);
1580 // "redirect" / request to index.html
1581 if (!strlen(filename))
1582 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1584 stream = first_stream;
1585 while (stream != NULL) {
1586 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1588 stream = stream->next;
1590 if (stream == NULL) {
1591 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1592 http_log("File '%s' not found\n", url);
1597 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1598 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1600 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1601 c->http_error = 301;
1603 snprintf(q, c->buffer_size,
1604 "HTTP/1.0 301 Moved\r\n"
1606 "Content-type: text/html\r\n"
1608 "<html><head><title>Moved</title></head><body>\r\n"
1609 "You should be <a href=\"%s\">redirected</a>.\r\n"
1610 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1612 /* prepare output buffer */
1613 c->buffer_ptr = c->buffer;
1615 c->state = HTTPSTATE_SEND_HEADER;
1619 /* If this is WMP, get the rate information */
1620 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1621 if (modify_current_stream(c, ratebuf)) {
1622 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1623 if (c->switch_feed_streams[i] >= 0)
1624 c->switch_feed_streams[i] = -1;
1629 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1630 current_bandwidth += stream->bandwidth;
1632 /* If already streaming this feed, do not let start another feeder. */
1633 if (stream->feed_opened) {
1634 snprintf(msg, sizeof(msg), "This feed is already being received.");
1635 http_log("Feed '%s' already being received\n", stream->feed_filename);
1639 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1640 c->http_error = 503;
1642 snprintf(q, c->buffer_size,
1643 "HTTP/1.0 503 Server too busy\r\n"
1644 "Content-type: text/html\r\n"
1646 "<html><head><title>Too busy</title></head><body>\r\n"
1647 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1648 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1649 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1650 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1652 /* prepare output buffer */
1653 c->buffer_ptr = c->buffer;
1655 c->state = HTTPSTATE_SEND_HEADER;
1659 if (redir_type != REDIR_NONE) {
1660 const char *hostinfo = 0;
1662 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1663 if (av_strncasecmp(p, "Host:", 5) == 0) {
1667 p = strchr(p, '\n');
1678 while (av_isspace(*hostinfo))
1681 eoh = strchr(hostinfo, '\n');
1683 if (eoh[-1] == '\r')
1686 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1687 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1688 hostbuf[eoh - hostinfo] = 0;
1690 c->http_error = 200;
1692 switch(redir_type) {
1694 snprintf(q, c->buffer_size,
1695 "HTTP/1.0 200 ASX Follows\r\n"
1696 "Content-type: video/x-ms-asf\r\n"
1698 "<ASX Version=\"3\">\r\n"
1699 //"<!-- Autogenerated by ffserver -->\r\n"
1700 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1701 "</ASX>\r\n", hostbuf, filename, info);
1705 snprintf(q, c->buffer_size,
1706 "HTTP/1.0 200 RAM Follows\r\n"
1707 "Content-type: audio/x-pn-realaudio\r\n"
1709 "# Autogenerated by ffserver\r\n"
1710 "http://%s/%s%s\r\n", hostbuf, filename, info);
1714 snprintf(q, c->buffer_size,
1715 "HTTP/1.0 200 ASF Redirect follows\r\n"
1716 "Content-type: video/x-ms-asf\r\n"
1719 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1724 char hostname[256], *p;
1725 /* extract only hostname */
1726 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1727 p = strrchr(hostname, ':');
1730 snprintf(q, c->buffer_size,
1731 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1732 /* XXX: incorrect mime type ? */
1733 "Content-type: application/x-rtsp\r\n"
1735 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1744 struct sockaddr_in my_addr;
1746 snprintf(q, c->buffer_size,
1747 "HTTP/1.0 200 OK\r\n"
1748 "Content-type: application/sdp\r\n"
1752 len = sizeof(my_addr);
1753 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1755 /* XXX: should use a dynamic buffer */
1756 sdp_data_size = prepare_sdp_description(stream,
1759 if (sdp_data_size > 0) {
1760 memcpy(q, sdp_data, sdp_data_size);
1772 /* prepare output buffer */
1773 c->buffer_ptr = c->buffer;
1775 c->state = HTTPSTATE_SEND_HEADER;
1781 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1785 stream->conns_served++;
1787 /* XXX: add there authenticate and IP match */
1790 /* if post, it means a feed is being sent */
1791 if (!stream->is_feed) {
1792 /* However it might be a status report from WMP! Let us log the
1793 * data as it might come in handy one day. */
1794 const char *logline = 0;
1797 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1798 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1802 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1803 client_id = strtol(p + 18, 0, 10);
1804 p = strchr(p, '\n');
1812 char *eol = strchr(logline, '\n');
1817 if (eol[-1] == '\r')
1819 http_log("%.*s\n", (int) (eol - logline), logline);
1820 c->suppress_log = 1;
1825 http_log("\nGot request:\n%s\n", c->buffer);
1828 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1831 /* Now we have to find the client_id */
1832 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1833 if (wmpc->wmp_client_id == client_id)
1837 if (wmpc && modify_current_stream(wmpc, ratebuf))
1838 wmpc->switch_pending = 1;
1841 snprintf(msg, sizeof(msg), "POST command not handled");
1845 if (http_start_receive_data(c) < 0) {
1846 snprintf(msg, sizeof(msg), "could not open feed");
1850 c->state = HTTPSTATE_RECEIVE_DATA;
1855 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1856 http_log("\nGot request:\n%s\n", c->buffer);
1859 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1862 /* open input stream */
1863 if (open_input_stream(c, info) < 0) {
1864 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1868 /* prepare http header */
1870 av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n");
1871 mime_type = c->stream->fmt->mime_type;
1873 mime_type = "application/x-octet-stream";
1874 av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n");
1876 /* for asf, we need extra headers */
1877 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1878 /* Need to allocate a client id */
1880 c->wmp_client_id = av_lfg_get(&random_state);
1882 av_strlcatf(c->buffer, c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
1884 av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type);
1885 av_strlcatf(c->buffer, c->buffer_size, "\r\n");
1886 q = c->buffer + strlen(c->buffer);
1888 /* prepare output buffer */
1890 c->buffer_ptr = c->buffer;
1892 c->state = HTTPSTATE_SEND_HEADER;
1895 c->http_error = 404;
1898 snprintf(q, c->buffer_size,
1899 "HTTP/1.0 404 Not Found\r\n"
1900 "Content-type: text/html\r\n"
1903 "<head><title>404 Not Found</title></head>\n"
1907 /* prepare output buffer */
1908 c->buffer_ptr = c->buffer;
1910 c->state = HTTPSTATE_SEND_HEADER;
1914 c->http_error = 200; /* horrible : we use this value to avoid
1915 going to the send data state */
1916 c->state = HTTPSTATE_SEND_HEADER;
1920 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1922 static const char suffix[] = " kMGTP";
1925 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1927 avio_printf(pb, "%"PRId64"%c", count, *s);
1930 static void compute_status(HTTPContext *c)
1939 if (avio_open_dyn_buf(&pb) < 0) {
1940 /* XXX: return an error ? */
1941 c->buffer_ptr = c->buffer;
1942 c->buffer_end = c->buffer;
1946 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1947 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1948 avio_printf(pb, "Pragma: no-cache\r\n");
1949 avio_printf(pb, "\r\n");
1951 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1952 if (c->stream->feed_filename[0])
1953 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1954 avio_printf(pb, "</head>\n<body>");
1955 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1957 avio_printf(pb, "<h2>Available Streams</h2>\n");
1958 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1959 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");
1960 stream = first_stream;
1961 while (stream != NULL) {
1962 char sfilename[1024];
1965 if (stream->feed != stream) {
1966 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1967 eosf = sfilename + strlen(sfilename);
1968 if (eosf - sfilename >= 4) {
1969 if (strcmp(eosf - 4, ".asf") == 0)
1970 strcpy(eosf - 4, ".asx");
1971 else if (strcmp(eosf - 3, ".rm") == 0)
1972 strcpy(eosf - 3, ".ram");
1973 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1974 /* generate a sample RTSP director if
1975 unicast. Generate an SDP redirector if
1977 eosf = strrchr(sfilename, '.');
1979 eosf = sfilename + strlen(sfilename);
1980 if (stream->is_multicast)
1981 strcpy(eosf, ".sdp");
1983 strcpy(eosf, ".rtsp");
1987 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1988 sfilename, stream->filename);
1989 avio_printf(pb, "<td align=right> %d <td align=right> ",
1990 stream->conns_served);
1991 fmt_bytecount(pb, stream->bytes_served);
1992 switch(stream->stream_type) {
1993 case STREAM_TYPE_LIVE: {
1994 int audio_bit_rate = 0;
1995 int video_bit_rate = 0;
1996 const char *audio_codec_name = "";
1997 const char *video_codec_name = "";
1998 const char *audio_codec_name_extra = "";
1999 const char *video_codec_name_extra = "";
2001 for(i=0;i<stream->nb_streams;i++) {
2002 AVStream *st = stream->streams[i];
2003 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2004 switch(st->codec->codec_type) {
2005 case AVMEDIA_TYPE_AUDIO:
2006 audio_bit_rate += st->codec->bit_rate;
2008 if (*audio_codec_name)
2009 audio_codec_name_extra = "...";
2010 audio_codec_name = codec->name;
2013 case AVMEDIA_TYPE_VIDEO:
2014 video_bit_rate += st->codec->bit_rate;
2016 if (*video_codec_name)
2017 video_codec_name_extra = "...";
2018 video_codec_name = codec->name;
2021 case AVMEDIA_TYPE_DATA:
2022 video_bit_rate += st->codec->bit_rate;
2028 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",
2031 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
2032 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
2034 avio_printf(pb, "<td>%s", stream->feed->filename);
2036 avio_printf(pb, "<td>%s", stream->feed_filename);
2037 avio_printf(pb, "\n");
2041 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
2045 stream = stream->next;
2047 avio_printf(pb, "</table>\n");
2049 stream = first_stream;
2050 while (stream != NULL) {
2051 if (stream->feed == stream) {
2052 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2054 avio_printf(pb, "Running as pid %d.\n", stream->pid);
2061 /* This is somewhat linux specific I guess */
2062 snprintf(ps_cmd, sizeof(ps_cmd),
2063 "ps -o \"%%cpu,cputime\" --no-headers %d",
2066 pid_stat = popen(ps_cmd, "r");
2071 if (fscanf(pid_stat, "%9s %63s", cpuperc,
2073 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2081 avio_printf(pb, "<p>");
2083 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");
2085 for (i = 0; i < stream->nb_streams; i++) {
2086 AVStream *st = stream->streams[i];
2087 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2088 const char *type = "unknown";
2089 char parameters[64];
2093 switch(st->codec->codec_type) {
2094 case AVMEDIA_TYPE_AUDIO:
2096 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2098 case AVMEDIA_TYPE_VIDEO:
2100 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2101 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2106 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2107 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2109 avio_printf(pb, "</table>\n");
2112 stream = stream->next;
2115 /* connection status */
2116 avio_printf(pb, "<h2>Connection Status</h2>\n");
2118 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2119 nb_connections, nb_max_connections);
2121 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2122 current_bandwidth, max_bandwidth);
2124 avio_printf(pb, "<table>\n");
2125 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");
2126 c1 = first_http_ctx;
2128 while (c1 != NULL) {
2134 for (j = 0; j < c1->stream->nb_streams; j++) {
2135 if (!c1->stream->feed)
2136 bitrate += c1->stream->streams[j]->codec->bit_rate;
2137 else if (c1->feed_streams[j] >= 0)
2138 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2143 p = inet_ntoa(c1->from_addr.sin_addr);
2144 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2146 c1->stream ? c1->stream->filename : "",
2147 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2150 http_state[c1->state]);
2151 fmt_bytecount(pb, bitrate);
2152 avio_printf(pb, "<td align=right>");
2153 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2154 avio_printf(pb, "<td align=right>");
2155 fmt_bytecount(pb, c1->data_count);
2156 avio_printf(pb, "\n");
2159 avio_printf(pb, "</table>\n");
2164 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2165 avio_printf(pb, "</body>\n</html>\n");
2167 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2168 c->buffer_ptr = c->pb_buffer;
2169 c->buffer_end = c->pb_buffer + len;
2172 static int open_input_stream(HTTPContext *c, const char *info)
2175 char input_filename[1024];
2176 AVFormatContext *s = NULL;
2177 int buf_size, i, ret;
2180 /* find file name */
2181 if (c->stream->feed) {
2182 strcpy(input_filename, c->stream->feed->feed_filename);
2183 buf_size = FFM_PACKET_SIZE;
2184 /* compute position (absolute time) */
2185 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2186 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2188 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2189 int prebuffer = strtol(buf, 0, 10);
2190 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2192 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2194 strcpy(input_filename, c->stream->feed_filename);
2196 /* compute position (relative time) */
2197 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2198 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2203 if (input_filename[0] == '\0')
2207 if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) {
2208 http_log("could not open %s: %d\n", input_filename, ret);
2212 /* set buffer size */
2213 if (buf_size > 0) ffio_set_buf_size(s->pb, buf_size);
2215 s->flags |= AVFMT_FLAG_GENPTS;
2217 if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) {
2218 http_log("Could not find stream info '%s'\n", input_filename);
2219 avformat_close_input(&s);
2223 /* choose stream as clock source (we favorize video stream if
2224 present) for packet sending */
2225 c->pts_stream_index = 0;
2226 for(i=0;i<c->stream->nb_streams;i++) {
2227 if (c->pts_stream_index == 0 &&
2228 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2229 c->pts_stream_index = i;
2233 if (c->fmt_in->iformat->read_seek)
2234 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2235 /* set the start time (needed for maxtime and RTP packet timing) */
2236 c->start_time = cur_time;
2237 c->first_pts = AV_NOPTS_VALUE;
2241 /* return the server clock (in us) */
2242 static int64_t get_server_clock(HTTPContext *c)
2244 /* compute current pts value from system time */
2245 return (cur_time - c->start_time) * 1000;
2248 /* return the estimated time at which the current packet must be sent
2250 static int64_t get_packet_send_clock(HTTPContext *c)
2252 int bytes_left, bytes_sent, frame_bytes;
2254 frame_bytes = c->cur_frame_bytes;
2255 if (frame_bytes <= 0)
2258 bytes_left = c->buffer_end - c->buffer_ptr;
2259 bytes_sent = frame_bytes - bytes_left;
2260 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2265 static int http_prepare_data(HTTPContext *c)
2268 AVFormatContext *ctx;
2270 av_freep(&c->pb_buffer);
2272 case HTTPSTATE_SEND_DATA_HEADER:
2273 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2274 av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2275 av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2276 av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2277 av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2279 c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
2281 for(i=0;i<c->stream->nb_streams;i++) {
2283 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2284 /* if file or feed, then just take streams from FFStream struct */
2285 if (!c->stream->feed ||
2286 c->stream->feed == c->stream)
2287 src = c->stream->streams[i];
2289 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2291 *(c->fmt_ctx.streams[i]) = *src;
2292 c->fmt_ctx.streams[i]->priv_data = 0;
2293 c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
2294 AVStream, not in codec */
2296 /* set output format parameters */
2297 c->fmt_ctx.oformat = c->stream->fmt;
2298 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2300 c->got_key_frame = 0;
2302 /* prepare header and save header data in a stream */
2303 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2304 /* XXX: potential leak */
2307 c->fmt_ctx.pb->seekable = 0;
2310 * HACK to avoid mpeg ps muxer to spit many underflow errors
2311 * Default value from FFmpeg
2312 * Try to set it use configuration option
2314 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2316 if (avformat_write_header(&c->fmt_ctx, NULL) < 0) {
2317 http_log("Error writing output header\n");
2320 av_dict_free(&c->fmt_ctx.metadata);
2322 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2323 c->buffer_ptr = c->pb_buffer;
2324 c->buffer_end = c->pb_buffer + len;
2326 c->state = HTTPSTATE_SEND_DATA;
2327 c->last_packet_sent = 0;
2329 case HTTPSTATE_SEND_DATA:
2330 /* find a new packet */
2331 /* read a packet from the input stream */
2332 if (c->stream->feed)
2333 ffm_set_write_index(c->fmt_in,
2334 c->stream->feed->feed_write_index,
2335 c->stream->feed->feed_size);
2337 if (c->stream->max_time &&
2338 c->stream->max_time + c->start_time - cur_time < 0)
2339 /* We have timed out */
2340 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2344 ret = av_read_frame(c->fmt_in, &pkt);
2346 if (c->stream->feed) {
2347 /* if coming from feed, it means we reached the end of the
2348 ffm file, so must wait for more data */
2349 c->state = HTTPSTATE_WAIT_FEED;
2350 return 1; /* state changed */
2351 } else if (ret == AVERROR(EAGAIN)) {
2352 /* input not ready, come back later */
2355 if (c->stream->loop) {
2356 avformat_close_input(&c->fmt_in);
2357 if (open_input_stream(c, "") < 0)
2362 /* must send trailer now because eof or error */
2363 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2367 int source_index = pkt.stream_index;
2368 /* update first pts if needed */
2369 if (c->first_pts == AV_NOPTS_VALUE) {
2370 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2371 c->start_time = cur_time;
2373 /* send it to the appropriate stream */
2374 if (c->stream->feed) {
2375 /* if coming from a feed, select the right stream */
2376 if (c->switch_pending) {
2377 c->switch_pending = 0;
2378 for(i=0;i<c->stream->nb_streams;i++) {
2379 if (c->switch_feed_streams[i] == pkt.stream_index)
2380 if (pkt.flags & AV_PKT_FLAG_KEY)
2381 c->switch_feed_streams[i] = -1;
2382 if (c->switch_feed_streams[i] >= 0)
2383 c->switch_pending = 1;
2386 for(i=0;i<c->stream->nb_streams;i++) {
2387 if (c->stream->feed_streams[i] == pkt.stream_index) {
2388 AVStream *st = c->fmt_in->streams[source_index];
2389 pkt.stream_index = i;
2390 if (pkt.flags & AV_PKT_FLAG_KEY &&
2391 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2392 c->stream->nb_streams == 1))
2393 c->got_key_frame = 1;
2394 if (!c->stream->send_on_key || c->got_key_frame)
2399 AVCodecContext *codec;
2400 AVStream *ist, *ost;
2402 ist = c->fmt_in->streams[source_index];
2403 /* specific handling for RTP: we use several
2404 output stream (one for each RTP
2405 connection). XXX: need more abstract handling */
2406 if (c->is_packetized) {
2407 /* compute send time and duration */
2408 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2409 c->cur_pts -= c->first_pts;
2410 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2411 /* find RTP context */
2412 c->packet_stream_index = pkt.stream_index;
2413 ctx = c->rtp_ctx[c->packet_stream_index];
2415 av_free_packet(&pkt);
2418 codec = ctx->streams[0]->codec;
2419 /* only one stream per RTP connection */
2420 pkt.stream_index = 0;
2424 codec = ctx->streams[pkt.stream_index]->codec;
2427 if (c->is_packetized) {
2428 int max_packet_size;
2429 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2430 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2432 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2433 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2435 ret = avio_open_dyn_buf(&ctx->pb);
2438 /* XXX: potential leak */
2441 ost = ctx->streams[pkt.stream_index];
2443 ctx->pb->seekable = 0;
2444 if (pkt.dts != AV_NOPTS_VALUE)
2445 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2446 if (pkt.pts != AV_NOPTS_VALUE)
2447 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2448 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2449 if (av_write_frame(ctx, &pkt) < 0) {
2450 http_log("Error writing frame to output\n");
2451 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2454 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2455 c->cur_frame_bytes = len;
2456 c->buffer_ptr = c->pb_buffer;
2457 c->buffer_end = c->pb_buffer + len;
2459 codec->frame_number++;
2461 av_free_packet(&pkt);
2465 av_free_packet(&pkt);
2470 case HTTPSTATE_SEND_DATA_TRAILER:
2471 /* last packet test ? */
2472 if (c->last_packet_sent || c->is_packetized)
2475 /* prepare header */
2476 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2477 /* XXX: potential leak */
2480 c->fmt_ctx.pb->seekable = 0;
2481 av_write_trailer(ctx);
2482 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2483 c->buffer_ptr = c->pb_buffer;
2484 c->buffer_end = c->pb_buffer + len;
2486 c->last_packet_sent = 1;
2492 /* should convert the format at the same time */
2493 /* send data starting at c->buffer_ptr to the output connection
2494 (either UDP or TCP connection) */
2495 static int http_send_data(HTTPContext *c)
2500 if (c->buffer_ptr >= c->buffer_end) {
2501 ret = http_prepare_data(c);
2505 /* state change requested */
2508 if (c->is_packetized) {
2509 /* RTP data output */
2510 len = c->buffer_end - c->buffer_ptr;
2512 /* fail safe - should never happen */
2514 c->buffer_ptr = c->buffer_end;
2517 len = (c->buffer_ptr[0] << 24) |
2518 (c->buffer_ptr[1] << 16) |
2519 (c->buffer_ptr[2] << 8) |
2521 if (len > (c->buffer_end - c->buffer_ptr))
2523 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2524 /* nothing to send yet: we can wait */
2528 c->data_count += len;
2529 update_datarate(&c->datarate, c->data_count);
2531 c->stream->bytes_served += len;
2533 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2534 /* RTP packets are sent inside the RTSP TCP connection */
2536 int interleaved_index, size;
2538 HTTPContext *rtsp_c;
2541 /* if no RTSP connection left, error */
2544 /* if already sending something, then wait. */
2545 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2547 if (avio_open_dyn_buf(&pb) < 0)
2549 interleaved_index = c->packet_stream_index * 2;
2550 /* RTCP packets are sent at odd indexes */
2551 if (c->buffer_ptr[1] == 200)
2552 interleaved_index++;
2553 /* write RTSP TCP header */
2555 header[1] = interleaved_index;
2556 header[2] = len >> 8;
2558 avio_write(pb, header, 4);
2559 /* write RTP packet data */
2561 avio_write(pb, c->buffer_ptr, len);
2562 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2563 /* prepare asynchronous TCP sending */
2564 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2565 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2566 c->buffer_ptr += len;
2568 /* send everything we can NOW */
2569 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2570 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2572 rtsp_c->packet_buffer_ptr += len;
2573 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2574 /* if we could not send all the data, we will
2575 send it later, so a new state is needed to
2576 "lock" the RTSP TCP connection */
2577 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2580 /* all data has been sent */
2581 av_freep(&c->packet_buffer);
2583 /* send RTP packet directly in UDP */
2585 ffurl_write(c->rtp_handles[c->packet_stream_index],
2586 c->buffer_ptr, len);
2587 c->buffer_ptr += len;
2588 /* here we continue as we can send several packets per 10 ms slot */
2591 /* TCP data output */
2592 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2594 if (ff_neterrno() != AVERROR(EAGAIN) &&
2595 ff_neterrno() != AVERROR(EINTR))
2596 /* error : close connection */
2601 c->buffer_ptr += len;
2603 c->data_count += len;
2604 update_datarate(&c->datarate, c->data_count);
2606 c->stream->bytes_served += len;
2614 static int http_start_receive_data(HTTPContext *c)
2618 if (c->stream->feed_opened)
2621 /* Don't permit writing to this one */
2622 if (c->stream->readonly)
2626 fd = open(c->stream->feed_filename, O_RDWR);
2628 http_log("Error opening feeder file: %s\n", strerror(errno));
2633 if (c->stream->truncate) {
2634 /* truncate feed file */
2635 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2636 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2637 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2638 http_log("Error truncating feed file: %s\n", strerror(errno));
2642 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2643 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2648 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2649 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2650 lseek(fd, 0, SEEK_SET);
2652 /* init buffer input */
2653 c->buffer_ptr = c->buffer;
2654 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2655 c->stream->feed_opened = 1;
2656 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2660 static int http_receive_data(HTTPContext *c)
2663 int len, loop_run = 0;
2665 while (c->chunked_encoding && !c->chunk_size &&
2666 c->buffer_end > c->buffer_ptr) {
2667 /* read chunk header, if present */
2668 len = recv(c->fd, c->buffer_ptr, 1, 0);
2671 if (ff_neterrno() != AVERROR(EAGAIN) &&
2672 ff_neterrno() != AVERROR(EINTR))
2673 /* error : close connection */
2676 } else if (len == 0) {
2677 /* end of connection : close it */
2679 } else if (c->buffer_ptr - c->buffer >= 2 &&
2680 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2681 c->chunk_size = strtol(c->buffer, 0, 16);
2682 if (c->chunk_size == 0) // end of stream
2684 c->buffer_ptr = c->buffer;
2686 } else if (++loop_run > 10) {
2687 /* no chunk header, abort */
2694 if (c->buffer_end > c->buffer_ptr) {
2695 len = recv(c->fd, c->buffer_ptr,
2696 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2698 if (ff_neterrno() != AVERROR(EAGAIN) &&
2699 ff_neterrno() != AVERROR(EINTR))
2700 /* error : close connection */
2702 } else if (len == 0)
2703 /* end of connection : close it */
2706 c->chunk_size -= len;
2707 c->buffer_ptr += len;
2708 c->data_count += len;
2709 update_datarate(&c->datarate, c->data_count);
2713 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2714 if (c->buffer[0] != 'f' ||
2715 c->buffer[1] != 'm') {
2716 http_log("Feed stream has become desynchronized -- disconnecting\n");
2721 if (c->buffer_ptr >= c->buffer_end) {
2722 FFStream *feed = c->stream;
2723 /* a packet has been received : write it in the store, except
2725 if (c->data_count > FFM_PACKET_SIZE) {
2726 /* XXX: use llseek or url_seek */
2727 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2728 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2729 http_log("Error writing to feed file: %s\n", strerror(errno));
2733 feed->feed_write_index += FFM_PACKET_SIZE;
2734 /* update file size */
2735 if (feed->feed_write_index > c->stream->feed_size)
2736 feed->feed_size = feed->feed_write_index;
2738 /* handle wrap around if max file size reached */
2739 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2740 feed->feed_write_index = FFM_PACKET_SIZE;
2743 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2744 http_log("Error writing index to feed file: %s\n", strerror(errno));
2748 /* wake up any waiting connections */
2749 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2750 if (c1->state == HTTPSTATE_WAIT_FEED &&
2751 c1->stream->feed == c->stream->feed)
2752 c1->state = HTTPSTATE_SEND_DATA;
2755 /* We have a header in our hands that contains useful data */
2756 AVFormatContext *s = avformat_alloc_context();
2758 AVInputFormat *fmt_in;
2764 /* use feed output format name to find corresponding input format */
2765 fmt_in = av_find_input_format(feed->fmt->name);
2769 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2770 0, NULL, NULL, NULL, NULL);
2774 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2779 /* Now we have the actual streams */
2780 if (s->nb_streams != feed->nb_streams) {
2781 avformat_close_input(&s);
2783 http_log("Feed '%s' stream number does not match registered feed\n",
2784 c->stream->feed_filename);
2788 for (i = 0; i < s->nb_streams; i++) {
2789 AVStream *fst = feed->streams[i];
2790 AVStream *st = s->streams[i];
2791 avcodec_copy_context(fst->codec, st->codec);
2794 avformat_close_input(&s);
2797 c->buffer_ptr = c->buffer;
2802 c->stream->feed_opened = 0;
2804 /* wake up any waiting connections to stop waiting for feed */
2805 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2806 if (c1->state == HTTPSTATE_WAIT_FEED &&
2807 c1->stream->feed == c->stream->feed)
2808 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2813 /********************************************************************/
2816 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2823 switch(error_number) {
2824 case RTSP_STATUS_OK:
2827 case RTSP_STATUS_METHOD:
2828 str = "Method Not Allowed";
2830 case RTSP_STATUS_BANDWIDTH:
2831 str = "Not Enough Bandwidth";
2833 case RTSP_STATUS_SESSION:
2834 str = "Session Not Found";
2836 case RTSP_STATUS_STATE:
2837 str = "Method Not Valid in This State";
2839 case RTSP_STATUS_AGGREGATE:
2840 str = "Aggregate operation not allowed";
2842 case RTSP_STATUS_ONLY_AGGREGATE:
2843 str = "Only aggregate operation allowed";
2845 case RTSP_STATUS_TRANSPORT:
2846 str = "Unsupported transport";
2848 case RTSP_STATUS_INTERNAL:
2849 str = "Internal Server Error";
2851 case RTSP_STATUS_SERVICE:
2852 str = "Service Unavailable";
2854 case RTSP_STATUS_VERSION:
2855 str = "RTSP Version not supported";
2858 str = "Unknown Error";
2862 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2863 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2865 /* output GMT time */
2868 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2869 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2872 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2874 rtsp_reply_header(c, error_number);
2875 avio_printf(c->pb, "\r\n");
2878 static int rtsp_parse_request(HTTPContext *c)
2880 const char *p, *p1, *p2;
2886 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2888 c->buffer_ptr[0] = '\0';
2891 get_word(cmd, sizeof(cmd), &p);
2892 get_word(url, sizeof(url), &p);
2893 get_word(protocol, sizeof(protocol), &p);
2895 av_strlcpy(c->method, cmd, sizeof(c->method));
2896 av_strlcpy(c->url, url, sizeof(c->url));
2897 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2899 if (avio_open_dyn_buf(&c->pb) < 0) {
2900 /* XXX: cannot do more */
2901 c->pb = NULL; /* safety */
2905 /* check version name */
2906 if (strcmp(protocol, "RTSP/1.0") != 0) {
2907 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2911 /* parse each header line */
2912 /* skip to next line */
2913 while (*p != '\n' && *p != '\0')
2917 while (*p != '\0') {
2918 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2922 if (p2 > p && p2[-1] == '\r')
2924 /* skip empty line */
2928 if (len > sizeof(line) - 1)
2929 len = sizeof(line) - 1;
2930 memcpy(line, p, len);
2932 ff_rtsp_parse_line(header, line, NULL, NULL);
2936 /* handle sequence number */
2937 c->seq = header->seq;
2939 if (!strcmp(cmd, "DESCRIBE"))
2940 rtsp_cmd_describe(c, url);
2941 else if (!strcmp(cmd, "OPTIONS"))
2942 rtsp_cmd_options(c, url);
2943 else if (!strcmp(cmd, "SETUP"))
2944 rtsp_cmd_setup(c, url, header);
2945 else if (!strcmp(cmd, "PLAY"))
2946 rtsp_cmd_play(c, url, header);
2947 else if (!strcmp(cmd, "PAUSE"))
2948 rtsp_cmd_pause(c, url, header);
2949 else if (!strcmp(cmd, "TEARDOWN"))
2950 rtsp_cmd_teardown(c, url, header);
2952 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2955 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2956 c->pb = NULL; /* safety */
2958 /* XXX: cannot do more */
2961 c->buffer_ptr = c->pb_buffer;
2962 c->buffer_end = c->pb_buffer + len;
2963 c->state = RTSPSTATE_SEND_REPLY;
2967 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2968 struct in_addr my_ip)
2970 AVFormatContext *avc;
2971 AVStream *avs = NULL;
2972 AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
2975 avc = avformat_alloc_context();
2976 if (avc == NULL || !rtp_format) {
2979 avc->oformat = rtp_format;
2980 av_dict_set(&avc->metadata, "title",
2981 stream->title[0] ? stream->title : "No Title", 0);
2982 avc->nb_streams = stream->nb_streams;
2983 if (stream->is_multicast) {
2984 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2985 inet_ntoa(stream->multicast_ip),
2986 stream->multicast_port, stream->multicast_ttl);
2988 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2991 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2992 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2994 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2995 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2998 for(i = 0; i < stream->nb_streams; i++) {
2999 avc->streams[i] = &avs[i];
3000 avc->streams[i]->codec = stream->streams[i]->codec;
3002 *pbuffer = av_mallocz(2048);
3003 av_sdp_create(&avc, 1, *pbuffer, 2048);
3006 av_free(avc->streams);
3007 av_dict_free(&avc->metadata);
3011 return strlen(*pbuffer);
3014 static void rtsp_cmd_options(HTTPContext *c, const char *url)
3016 // rtsp_reply_header(c, RTSP_STATUS_OK);
3017 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
3018 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
3019 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
3020 avio_printf(c->pb, "\r\n");
3023 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
3031 struct sockaddr_in my_addr;
3033 /* find which url is asked */
3034 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3039 for(stream = first_stream; stream != NULL; stream = stream->next) {
3040 if (!stream->is_feed &&
3041 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
3042 !strcmp(path, stream->filename)) {
3046 /* no stream found */
3047 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3051 /* prepare the media description in sdp format */
3053 /* get the host IP */
3054 len = sizeof(my_addr);
3055 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3056 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3057 if (content_length < 0) {
3058 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3061 rtsp_reply_header(c, RTSP_STATUS_OK);
3062 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3063 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3064 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3065 avio_printf(c->pb, "\r\n");
3066 avio_write(c->pb, content, content_length);
3070 static HTTPContext *find_rtp_session(const char *session_id)
3074 if (session_id[0] == '\0')
3077 for(c = first_http_ctx; c != NULL; c = c->next) {
3078 if (!strcmp(c->session_id, session_id))
3084 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3086 RTSPTransportField *th;
3089 for(i=0;i<h->nb_transports;i++) {
3090 th = &h->transports[i];
3091 if (th->lower_transport == lower_transport)
3097 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3098 RTSPMessageHeader *h)
3101 int stream_index, rtp_port, rtcp_port;
3106 RTSPTransportField *th;
3107 struct sockaddr_in dest_addr;
3108 RTSPActionServerSetup setup;
3110 /* find which url is asked */
3111 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3116 /* now check each stream */
3117 for(stream = first_stream; stream != NULL; stream = stream->next) {
3118 if (!stream->is_feed &&
3119 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3120 /* accept aggregate filenames only if single stream */
3121 if (!strcmp(path, stream->filename)) {
3122 if (stream->nb_streams != 1) {
3123 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3130 for(stream_index = 0; stream_index < stream->nb_streams;
3132 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3133 stream->filename, stream_index);
3134 if (!strcmp(path, buf))
3139 /* no stream found */
3140 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3144 /* generate session id if needed */
3145 if (h->session_id[0] == '\0') {
3146 unsigned random0 = av_lfg_get(&random_state);
3147 unsigned random1 = av_lfg_get(&random_state);
3148 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3152 /* find rtp session, and create it if none found */
3153 rtp_c = find_rtp_session(h->session_id);
3155 /* always prefer UDP */
3156 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3158 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3160 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3165 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3166 th->lower_transport);
3168 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3172 /* open input stream */
3173 if (open_input_stream(rtp_c, "") < 0) {
3174 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3179 /* test if stream is OK (test needed because several SETUP needs
3180 to be done for a given file) */
3181 if (rtp_c->stream != stream) {
3182 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3186 /* test if stream is already set up */
3187 if (rtp_c->rtp_ctx[stream_index]) {
3188 rtsp_reply_error(c, RTSP_STATUS_STATE);
3192 /* check transport */
3193 th = find_transport(h, rtp_c->rtp_protocol);
3194 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3195 th->client_port_min <= 0)) {
3196 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3200 /* setup default options */
3201 setup.transport_option[0] = '\0';
3202 dest_addr = rtp_c->from_addr;
3203 dest_addr.sin_port = htons(th->client_port_min);
3206 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3207 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3211 /* now everything is OK, so we can send the connection parameters */
3212 rtsp_reply_header(c, RTSP_STATUS_OK);
3214 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3216 switch(rtp_c->rtp_protocol) {
3217 case RTSP_LOWER_TRANSPORT_UDP:
3218 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3219 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3220 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3221 "client_port=%d-%d;server_port=%d-%d",
3222 th->client_port_min, th->client_port_max,
3223 rtp_port, rtcp_port);
3225 case RTSP_LOWER_TRANSPORT_TCP:
3226 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3227 stream_index * 2, stream_index * 2 + 1);
3232 if (setup.transport_option[0] != '\0')
3233 avio_printf(c->pb, ";%s", setup.transport_option);
3234 avio_printf(c->pb, "\r\n");
3237 avio_printf(c->pb, "\r\n");
3241 /* find an rtp connection by using the session ID. Check consistency
3243 static HTTPContext *find_rtp_session_with_url(const char *url,
3244 const char *session_id)
3252 rtp_c = find_rtp_session(session_id);
3256 /* find which url is asked */
3257 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3261 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3262 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3263 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3264 rtp_c->stream->filename, s);
3265 if(!strncmp(path, buf, sizeof(buf))) {
3266 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3271 if (len > 0 && path[len - 1] == '/' &&
3272 !strncmp(path, rtp_c->stream->filename, len - 1))
3277 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3281 rtp_c = find_rtp_session_with_url(url, h->session_id);
3283 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3287 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3288 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3289 rtp_c->state != HTTPSTATE_READY) {
3290 rtsp_reply_error(c, RTSP_STATUS_STATE);
3294 rtp_c->state = HTTPSTATE_SEND_DATA;
3296 /* now everything is OK, so we can send the connection parameters */
3297 rtsp_reply_header(c, RTSP_STATUS_OK);
3299 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3300 avio_printf(c->pb, "\r\n");
3303 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3307 rtp_c = find_rtp_session_with_url(url, h->session_id);
3309 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3313 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3314 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3315 rtsp_reply_error(c, RTSP_STATUS_STATE);
3319 rtp_c->state = HTTPSTATE_READY;
3320 rtp_c->first_pts = AV_NOPTS_VALUE;
3321 /* now everything is OK, so we can send the connection parameters */
3322 rtsp_reply_header(c, RTSP_STATUS_OK);
3324 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3325 avio_printf(c->pb, "\r\n");
3328 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3332 rtp_c = find_rtp_session_with_url(url, h->session_id);
3334 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3338 /* now everything is OK, so we can send the connection parameters */
3339 rtsp_reply_header(c, RTSP_STATUS_OK);
3341 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3342 avio_printf(c->pb, "\r\n");
3344 /* abort the session */
3345 close_connection(rtp_c);
3349 /********************************************************************/
3352 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3353 FFStream *stream, const char *session_id,
3354 enum RTSPLowerTransport rtp_protocol)
3356 HTTPContext *c = NULL;
3357 const char *proto_str;
3359 /* XXX: should output a warning page when coming
3360 close to the connection limit */
3361 if (nb_connections >= nb_max_connections)
3364 /* add a new connection */
3365 c = av_mallocz(sizeof(HTTPContext));
3370 c->poll_entry = NULL;
3371 c->from_addr = *from_addr;
3372 c->buffer_size = IOBUFFER_INIT_SIZE;
3373 c->buffer = av_malloc(c->buffer_size);
3378 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3379 c->state = HTTPSTATE_READY;
3380 c->is_packetized = 1;
3381 c->rtp_protocol = rtp_protocol;
3383 /* protocol is shown in statistics */
3384 switch(c->rtp_protocol) {
3385 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3386 proto_str = "MCAST";
3388 case RTSP_LOWER_TRANSPORT_UDP:
3391 case RTSP_LOWER_TRANSPORT_TCP:
3398 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3399 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3401 current_bandwidth += stream->bandwidth;
3403 c->next = first_http_ctx;
3415 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3416 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3418 static int rtp_new_av_stream(HTTPContext *c,
3419 int stream_index, struct sockaddr_in *dest_addr,
3420 HTTPContext *rtsp_c)
3422 AVFormatContext *ctx;
3425 URLContext *h = NULL;
3427 int max_packet_size;
3429 /* now we can open the relevant output stream */
3430 ctx = avformat_alloc_context();
3433 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3435 st = av_mallocz(sizeof(AVStream));
3438 ctx->nb_streams = 1;
3439 ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams);
3442 ctx->streams[0] = st;
3444 if (!c->stream->feed ||
3445 c->stream->feed == c->stream)
3446 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3449 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3451 st->priv_data = NULL;
3453 /* build destination RTP address */
3454 ipaddr = inet_ntoa(dest_addr->sin_addr);
3456 switch(c->rtp_protocol) {
3457 case RTSP_LOWER_TRANSPORT_UDP:
3458 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3461 /* XXX: also pass as parameter to function ? */
3462 if (c->stream->is_multicast) {
3464 ttl = c->stream->multicast_ttl;
3467 snprintf(ctx->filename, sizeof(ctx->filename),
3468 "rtp://%s:%d?multicast=1&ttl=%d",
3469 ipaddr, ntohs(dest_addr->sin_port), ttl);
3471 snprintf(ctx->filename, sizeof(ctx->filename),
3472 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3475 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3477 c->rtp_handles[stream_index] = h;
3478 max_packet_size = h->max_packet_size;
3480 case RTSP_LOWER_TRANSPORT_TCP:
3483 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3489 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3490 ipaddr, ntohs(dest_addr->sin_port),
3491 c->stream->filename, stream_index, c->protocol);
3493 /* normally, no packets should be output here, but the packet size may be checked */
3494 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3495 /* XXX: close stream */
3498 if (avformat_write_header(ctx, NULL) < 0) {
3505 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3508 c->rtp_ctx[stream_index] = ctx;
3512 /********************************************************************/
3513 /* ffserver initialization */
3515 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3519 if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
3522 fst = av_mallocz(sizeof(AVStream));
3526 fst->codec = avcodec_alloc_context3(NULL);
3527 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3528 if (codec->extradata_size) {
3529 fst->codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE);
3530 memcpy(fst->codec->extradata, codec->extradata,
3531 codec->extradata_size);
3534 /* live streams must use the actual feed's codec since it may be
3535 * updated later to carry extradata needed by the streams.
3539 fst->priv_data = av_mallocz(sizeof(FeedData));
3540 fst->index = stream->nb_streams;
3541 avpriv_set_pts_info(fst, 33, 1, 90000);
3542 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3543 stream->streams[stream->nb_streams++] = fst;
3547 /* return the stream number in the feed */
3548 static int add_av_stream(FFStream *feed, AVStream *st)
3551 AVCodecContext *av, *av1;
3555 for(i=0;i<feed->nb_streams;i++) {
3556 st = feed->streams[i];
3558 if (av1->codec_id == av->codec_id &&
3559 av1->codec_type == av->codec_type &&
3560 av1->bit_rate == av->bit_rate) {
3562 switch(av->codec_type) {
3563 case AVMEDIA_TYPE_AUDIO:
3564 if (av1->channels == av->channels &&
3565 av1->sample_rate == av->sample_rate)
3568 case AVMEDIA_TYPE_VIDEO:
3569 if (av1->width == av->width &&
3570 av1->height == av->height &&
3571 av1->time_base.den == av->time_base.den &&
3572 av1->time_base.num == av->time_base.num &&
3573 av1->gop_size == av->gop_size)
3582 fst = add_av_stream1(feed, av, 0);
3585 return feed->nb_streams - 1;
3588 static void remove_stream(FFStream *stream)
3592 while (*ps != NULL) {
3600 /* specific mpeg4 handling : we extract the raw parameters */
3601 static void extract_mpeg4_header(AVFormatContext *infile)
3603 int mpeg4_count, i, size;
3608 infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE;
3611 for(i=0;i<infile->nb_streams;i++) {
3612 st = infile->streams[i];
3613 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3614 st->codec->extradata_size == 0) {
3621 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3622 while (mpeg4_count > 0) {
3623 if (av_read_frame(infile, &pkt) < 0)
3625 st = infile->streams[pkt.stream_index];
3626 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3627 st->codec->extradata_size == 0) {
3628 av_freep(&st->codec->extradata);
3629 /* fill extradata with the header */
3630 /* XXX: we make hard suppositions here ! */
3632 while (p < pkt.data + pkt.size - 4) {
3633 /* stop when vop header is found */
3634 if (p[0] == 0x00 && p[1] == 0x00 &&
3635 p[2] == 0x01 && p[3] == 0xb6) {
3636 size = p - pkt.data;
3637 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3638 st->codec->extradata = av_mallocz(size + FF_INPUT_BUFFER_PADDING_SIZE);
3639 st->codec->extradata_size = size;
3640 memcpy(st->codec->extradata, pkt.data, size);
3647 av_free_packet(&pkt);
3651 /* compute the needed AVStream for each file */
3652 static void build_file_streams(void)
3654 FFStream *stream, *stream_next;
3657 /* gather all streams */
3658 for(stream = first_stream; stream != NULL; stream = stream_next) {
3659 AVFormatContext *infile = NULL;
3660 stream_next = stream->next;
3661 if (stream->stream_type == STREAM_TYPE_LIVE &&
3663 /* the stream comes from a file */
3664 /* try to open the file */
3666 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3667 /* specific case : if transport stream output to RTP,
3668 we use a raw transport stream reader */
3669 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3672 http_log("Opening file '%s'\n", stream->feed_filename);
3673 if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) {
3674 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3675 /* remove stream (no need to spend more time on it) */
3677 remove_stream(stream);
3679 /* find all the AVStreams inside and reference them in
3681 if (avformat_find_stream_info(infile, NULL) < 0) {
3682 http_log("Could not find codec parameters from '%s'\n",
3683 stream->feed_filename);
3684 avformat_close_input(&infile);
3687 extract_mpeg4_header(infile);
3689 for(i=0;i<infile->nb_streams;i++)
3690 add_av_stream1(stream, infile->streams[i]->codec, 1);
3692 avformat_close_input(&infile);
3698 /* compute the needed AVStream for each feed */
3699 static void build_feed_streams(void)
3701 FFStream *stream, *feed;
3704 /* gather all streams */
3705 for(stream = first_stream; stream != NULL; stream = stream->next) {
3706 feed = stream->feed;
3708 if (stream->is_feed) {
3709 for(i=0;i<stream->nb_streams;i++)
3710 stream->feed_streams[i] = i;
3712 /* we handle a stream coming from a feed */
3713 for(i=0;i<stream->nb_streams;i++)
3714 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3719 /* create feed files if needed */
3720 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3723 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3724 /* See if it matches */
3725 AVFormatContext *s = NULL;
3728 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {
3729 /* set buffer size */
3730 ffio_set_buf_size(s->pb, FFM_PACKET_SIZE);
3731 /* Now see if it matches */
3732 if (s->nb_streams == feed->nb_streams) {
3734 for(i=0;i<s->nb_streams;i++) {
3736 sf = feed->streams[i];
3739 if (sf->index != ss->index ||
3741 http_log("Index & Id do not match for stream %d (%s)\n",
3742 i, feed->feed_filename);
3745 AVCodecContext *ccf, *ccs;
3749 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3751 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3752 http_log("Codecs do not match for stream %d\n", i);
3754 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3755 http_log("Codec bitrates do not match for stream %d\n", i);
3757 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3758 if (CHECK_CODEC(time_base.den) ||
3759 CHECK_CODEC(time_base.num) ||
3760 CHECK_CODEC(width) ||
3761 CHECK_CODEC(height)) {
3762 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3765 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3766 if (CHECK_CODEC(sample_rate) ||
3767 CHECK_CODEC(channels) ||
3768 CHECK_CODEC(frame_size)) {
3769 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3773 http_log("Unknown codec type\n");
3781 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3782 feed->feed_filename, s->nb_streams, feed->nb_streams);
3784 avformat_close_input(&s);
3786 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3787 feed->feed_filename);
3790 if (feed->readonly) {
3791 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3792 feed->feed_filename);
3795 unlink(feed->feed_filename);
3798 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3799 AVFormatContext s1 = {0}, *s = &s1;
3801 if (feed->readonly) {
3802 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3803 feed->feed_filename);
3807 /* only write the header of the ffm file */
3808 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3809 http_log("Could not open output feed file '%s'\n",
3810 feed->feed_filename);
3813 s->oformat = feed->fmt;
3814 s->nb_streams = feed->nb_streams;
3815 s->streams = feed->streams;
3816 if (avformat_write_header(s, NULL) < 0) {
3817 http_log("Container doesn't support the required parameters\n");
3820 /* XXX: need better api */
3821 av_freep(&s->priv_data);
3824 /* get feed size and write index */
3825 fd = open(feed->feed_filename, O_RDONLY);
3827 http_log("Could not open output feed file '%s'\n",
3828 feed->feed_filename);
3832 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3833 feed->feed_size = lseek(fd, 0, SEEK_END);
3834 /* ensure that we do not wrap before the end of file */
3835 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3836 feed->feed_max_size = feed->feed_size;
3842 /* compute the bandwidth used by each stream */
3843 static void compute_bandwidth(void)
3849 for(stream = first_stream; stream != NULL; stream = stream->next) {
3851 for(i=0;i<stream->nb_streams;i++) {
3852 AVStream *st = stream->streams[i];
3853 switch(st->codec->codec_type) {
3854 case AVMEDIA_TYPE_AUDIO:
3855 case AVMEDIA_TYPE_VIDEO:
3856 bandwidth += st->codec->bit_rate;
3862 stream->bandwidth = (bandwidth + 999) / 1000;
3866 /* add a codec and set the default parameters */
3867 static void add_codec(FFStream *stream, AVCodecContext *av)
3871 if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
3874 /* compute default parameters */
3875 switch(av->codec_type) {
3876 case AVMEDIA_TYPE_AUDIO:
3877 if (av->bit_rate == 0)
3878 av->bit_rate = 64000;
3879 if (av->sample_rate == 0)
3880 av->sample_rate = 22050;
3881 if (av->channels == 0)
3884 case AVMEDIA_TYPE_VIDEO:
3885 if (av->bit_rate == 0)
3886 av->bit_rate = 64000;
3887 if (av->time_base.num == 0){
3888 av->time_base.den = 5;
3889 av->time_base.num = 1;
3891 if (av->width == 0 || av->height == 0) {
3895 /* Bitrate tolerance is less for streaming */
3896 if (av->bit_rate_tolerance == 0)
3897 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3898 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3903 if (av->max_qdiff == 0)
3905 av->qcompress = 0.5;
3908 if (!av->nsse_weight)
3909 av->nsse_weight = 8;
3911 av->frame_skip_cmp = FF_CMP_DCTMAX;
3913 av->me_method = ME_EPZS;
3914 av->rc_buffer_aggressivity = 1.0;
3917 av->rc_eq = av_strdup("tex^qComp");
3918 if (!av->i_quant_factor)
3919 av->i_quant_factor = -0.8;
3920 if (!av->b_quant_factor)
3921 av->b_quant_factor = 1.25;
3922 if (!av->b_quant_offset)
3923 av->b_quant_offset = 1.25;
3924 if (!av->rc_max_rate)
3925 av->rc_max_rate = av->bit_rate * 2;
3927 if (av->rc_max_rate && !av->rc_buffer_size) {
3928 av->rc_buffer_size = av->rc_max_rate;
3937 st = av_mallocz(sizeof(AVStream));
3940 st->codec = avcodec_alloc_context3(NULL);
3941 stream->streams[stream->nb_streams++] = st;
3942 memcpy(st->codec, av, sizeof(AVCodecContext));
3945 static enum AVCodecID opt_audio_codec(const char *arg)
3947 AVCodec *p= avcodec_find_encoder_by_name(arg);
3949 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3950 return AV_CODEC_ID_NONE;
3955 static enum AVCodecID opt_video_codec(const char *arg)
3957 AVCodec *p= avcodec_find_encoder_by_name(arg);
3959 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3960 return AV_CODEC_ID_NONE;
3965 static int ffserver_opt_default(const char *opt, const char *arg,
3966 AVCodecContext *avctx, int type)
3969 const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);
3971 ret = av_opt_set(avctx, opt, arg, 0);
3975 static int ffserver_opt_preset(const char *arg,
3976 AVCodecContext *avctx, int type,
3977 enum AVCodecID *audio_id, enum AVCodecID *video_id)
3980 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3982 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3984 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3985 codec ? codec->name : NULL))) {
3986 fprintf(stderr, "File for preset '%s' not found\n", arg);
3991 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3992 if(line[0] == '#' && !e)
3994 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3996 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
4000 if(!strcmp(tmp, "acodec")){
4001 *audio_id = opt_audio_codec(tmp2);
4002 }else if(!strcmp(tmp, "vcodec")){
4003 *video_id = opt_video_codec(tmp2);
4004 }else if(!strcmp(tmp, "scodec")){
4005 /* opt_subtitle_codec(tmp2); */
4006 }else if(ffserver_opt_default(tmp, tmp2, avctx, type) < 0){
4007 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
4018 static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename,
4019 const char *mime_type)
4021 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
4024 AVOutputFormat *stream_fmt;
4025 char stream_format_name[64];
4027 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
4028 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
4037 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
4041 fprintf(stderr, "%s:%d: ", filename, line_num);
4042 vfprintf(stderr, fmt, vl);
4048 static int parse_ffconfig(const char *filename)
4055 int val, errors, line_num;
4056 FFStream **last_stream, *stream, *redirect;
4057 FFStream **last_feed, *feed, *s;
4058 AVCodecContext audio_enc, video_enc;
4059 enum AVCodecID audio_id, video_id;
4061 f = fopen(filename, "r");
4069 first_stream = NULL;
4070 last_stream = &first_stream;
4072 last_feed = &first_feed;
4076 audio_id = AV_CODEC_ID_NONE;
4077 video_id = AV_CODEC_ID_NONE;
4079 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4081 if (fgets(line, sizeof(line), f) == NULL)
4085 while (av_isspace(*p))
4087 if (*p == '\0' || *p == '#')
4090 get_arg(cmd, sizeof(cmd), &p);
4092 if (!av_strcasecmp(cmd, "Port")) {
4093 get_arg(arg, sizeof(arg), &p);
4095 if (val < 1 || val > 65536) {
4096 ERROR("Invalid_port: %s\n", arg);
4098 my_http_addr.sin_port = htons(val);
4099 } else if (!av_strcasecmp(cmd, "BindAddress")) {
4100 get_arg(arg, sizeof(arg), &p);
4101 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4102 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4104 } else if (!av_strcasecmp(cmd, "NoDaemon")) {
4105 // do nothing here, its the default now
4106 } else if (!av_strcasecmp(cmd, "RTSPPort")) {
4107 get_arg(arg, sizeof(arg), &p);
4109 if (val < 1 || val > 65536) {
4110 ERROR("%s:%d: Invalid port: %s\n", arg);
4112 my_rtsp_addr.sin_port = htons(atoi(arg));
4113 } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
4114 get_arg(arg, sizeof(arg), &p);
4115 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4116 ERROR("Invalid host/IP address: %s\n", arg);
4118 } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
4119 get_arg(arg, sizeof(arg), &p);
4121 if (val < 1 || val > 65536) {
4122 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4124 nb_max_http_connections = val;
4125 } else if (!av_strcasecmp(cmd, "MaxClients")) {
4126 get_arg(arg, sizeof(arg), &p);
4128 if (val < 1 || val > nb_max_http_connections) {
4129 ERROR("Invalid MaxClients: %s\n", arg);
4131 nb_max_connections = val;
4133 } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
4135 get_arg(arg, sizeof(arg), &p);
4136 llval = strtoll(arg, NULL, 10);
4137 if (llval < 10 || llval > 10000000) {
4138 ERROR("Invalid MaxBandwidth: %s\n", arg);
4140 max_bandwidth = llval;
4141 } else if (!av_strcasecmp(cmd, "CustomLog")) {
4142 if (!ffserver_debug)
4143 get_arg(logfilename, sizeof(logfilename), &p);
4144 } else if (!av_strcasecmp(cmd, "<Feed")) {
4145 /*********************************************/
4146 /* Feed related options */
4148 if (stream || feed) {
4149 ERROR("Already in a tag\n");
4151 feed = av_mallocz(sizeof(FFStream));
4152 get_arg(feed->filename, sizeof(feed->filename), &p);
4153 q = strrchr(feed->filename, '>');
4157 for (s = first_feed; s; s = s->next) {
4158 if (!strcmp(feed->filename, s->filename)) {
4159 ERROR("Feed '%s' already registered\n", s->filename);
4163 feed->fmt = av_guess_format("ffm", NULL, NULL);
4164 /* defaut feed file */
4165 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4166 "/tmp/%s.ffm", feed->filename);
4167 feed->feed_max_size = 5 * 1024 * 1024;
4169 feed->feed = feed; /* self feeding :-) */
4171 /* add in stream list */
4172 *last_stream = feed;
4173 last_stream = &feed->next;
4174 /* add in feed list */
4176 last_feed = &feed->next_feed;
4178 } else if (!av_strcasecmp(cmd, "Launch")) {
4182 feed->child_argv = av_mallocz(64 * sizeof(char *));
4184 for (i = 0; i < 62; i++) {
4185 get_arg(arg, sizeof(arg), &p);
4189 feed->child_argv[i] = av_strdup(arg);
4192 feed->child_argv[i] = av_asprintf("http://%s:%d/%s",
4193 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4194 inet_ntoa(my_http_addr.sin_addr),
4195 ntohs(my_http_addr.sin_port), feed->filename);
4197 } else if (!av_strcasecmp(cmd, "ReadOnlyFile")) {
4199 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4201 } else if (stream) {
4202 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4204 } else if (!av_strcasecmp(cmd, "File")) {
4206 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4208 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4209 } else if (!av_strcasecmp(cmd, "Truncate")) {
4211 get_arg(arg, sizeof(arg), &p);
4212 feed->truncate = strtod(arg, NULL);
4214 } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
4219 get_arg(arg, sizeof(arg), &p);
4221 fsize = strtod(p1, &p1);
4222 switch(av_toupper(*p1)) {
4227 fsize *= 1024 * 1024;
4230 fsize *= 1024 * 1024 * 1024;
4233 feed->feed_max_size = (int64_t)fsize;
4234 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4235 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4238 } else if (!av_strcasecmp(cmd, "</Feed>")) {
4240 ERROR("No corresponding <Feed> for </Feed>\n");
4243 } else if (!av_strcasecmp(cmd, "<Stream")) {
4244 /*********************************************/
4245 /* Stream related options */
4247 if (stream || feed) {
4248 ERROR("Already in a tag\n");
4251 stream = av_mallocz(sizeof(FFStream));
4252 get_arg(stream->filename, sizeof(stream->filename), &p);
4253 q = strrchr(stream->filename, '>');
4257 for (s = first_stream; s; s = s->next) {
4258 if (!strcmp(stream->filename, s->filename)) {
4259 ERROR("Stream '%s' already registered\n", s->filename);
4263 stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
4264 avcodec_get_context_defaults3(&video_enc, NULL);
4265 avcodec_get_context_defaults3(&audio_enc, NULL);
4267 audio_id = AV_CODEC_ID_NONE;
4268 video_id = AV_CODEC_ID_NONE;
4270 audio_id = stream->fmt->audio_codec;
4271 video_id = stream->fmt->video_codec;
4274 *last_stream = stream;
4275 last_stream = &stream->next;
4277 } else if (!av_strcasecmp(cmd, "Feed")) {
4278 get_arg(arg, sizeof(arg), &p);
4283 while (sfeed != NULL) {
4284 if (!strcmp(sfeed->filename, arg))
4286 sfeed = sfeed->next_feed;
4289 ERROR("feed '%s' not defined\n", arg);
4291 stream->feed = sfeed;
4293 } else if (!av_strcasecmp(cmd, "Format")) {
4294 get_arg(arg, sizeof(arg), &p);
4296 if (!strcmp(arg, "status")) {
4297 stream->stream_type = STREAM_TYPE_STATUS;
4300 stream->stream_type = STREAM_TYPE_LIVE;
4301 /* jpeg cannot be used here, so use single frame jpeg */
4302 if (!strcmp(arg, "jpeg"))
4303 strcpy(arg, "mjpeg");
4304 stream->fmt = ffserver_guess_format(arg, NULL, NULL);
4306 ERROR("Unknown Format: %s\n", arg);
4310 audio_id = stream->fmt->audio_codec;
4311 video_id = stream->fmt->video_codec;
4314 } else if (!av_strcasecmp(cmd, "InputFormat")) {
4315 get_arg(arg, sizeof(arg), &p);
4317 stream->ifmt = av_find_input_format(arg);
4318 if (!stream->ifmt) {
4319 ERROR("Unknown input format: %s\n", arg);
4322 } else if (!av_strcasecmp(cmd, "FaviconURL")) {
4323 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4324 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4326 ERROR("FaviconURL only permitted for status streams\n");
4328 } else if (!av_strcasecmp(cmd, "Author")) {
4330 get_arg(stream->author, sizeof(stream->author), &p);
4331 } else if (!av_strcasecmp(cmd, "Comment")) {
4333 get_arg(stream->comment, sizeof(stream->comment), &p);
4334 } else if (!av_strcasecmp(cmd, "Copyright")) {
4336 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4337 } else if (!av_strcasecmp(cmd, "Title")) {
4339 get_arg(stream->title, sizeof(stream->title), &p);
4340 } else if (!av_strcasecmp(cmd, "Preroll")) {
4341 get_arg(arg, sizeof(arg), &p);
4343 stream->prebuffer = atof(arg) * 1000;
4344 } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
4346 stream->send_on_key = 1;
4347 } else if (!av_strcasecmp(cmd, "AudioCodec")) {
4348 get_arg(arg, sizeof(arg), &p);
4349 audio_id = opt_audio_codec(arg);
4350 if (audio_id == AV_CODEC_ID_NONE) {
4351 ERROR("Unknown AudioCodec: %s\n", arg);
4353 } else if (!av_strcasecmp(cmd, "VideoCodec")) {
4354 get_arg(arg, sizeof(arg), &p);
4355 video_id = opt_video_codec(arg);
4356 if (video_id == AV_CODEC_ID_NONE) {
4357 ERROR("Unknown VideoCodec: %s\n", arg);
4359 } else if (!av_strcasecmp(cmd, "MaxTime")) {
4360 get_arg(arg, sizeof(arg), &p);
4362 stream->max_time = atof(arg) * 1000;
4363 } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
4364 get_arg(arg, sizeof(arg), &p);
4366 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4367 } else if (!av_strcasecmp(cmd, "AudioChannels")) {
4368 get_arg(arg, sizeof(arg), &p);
4370 audio_enc.channels = atoi(arg);
4371 } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
4372 get_arg(arg, sizeof(arg), &p);
4374 audio_enc.sample_rate = atoi(arg);
4375 } else if (!av_strcasecmp(cmd, "AudioQuality")) {
4376 get_arg(arg, sizeof(arg), &p);
4378 // audio_enc.quality = atof(arg) * 1000;
4380 } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
4382 int minrate, maxrate;
4384 get_arg(arg, sizeof(arg), &p);
4386 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4387 video_enc.rc_min_rate = minrate * 1000;
4388 video_enc.rc_max_rate = maxrate * 1000;
4390 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4393 } else if (!av_strcasecmp(cmd, "Debug")) {
4395 get_arg(arg, sizeof(arg), &p);
4396 video_enc.debug = strtol(arg,0,0);
4398 } else if (!av_strcasecmp(cmd, "Strict")) {
4400 get_arg(arg, sizeof(arg), &p);
4401 video_enc.strict_std_compliance = atoi(arg);
4403 } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
4405 get_arg(arg, sizeof(arg), &p);
4406 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4408 } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
4410 get_arg(arg, sizeof(arg), &p);
4411 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4413 } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
4414 get_arg(arg, sizeof(arg), &p);
4416 video_enc.bit_rate = atoi(arg) * 1000;
4418 } else if (!av_strcasecmp(cmd, "VideoSize")) {
4419 get_arg(arg, sizeof(arg), &p);
4421 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4422 if ((video_enc.width % 16) != 0 ||
4423 (video_enc.height % 16) != 0) {
4424 ERROR("Image size must be a multiple of 16\n");
4427 } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
4428 get_arg(arg, sizeof(arg), &p);
4430 AVRational frame_rate;
4431 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4432 ERROR("Incorrect frame rate: %s\n", arg);
4434 video_enc.time_base.num = frame_rate.den;
4435 video_enc.time_base.den = frame_rate.num;
4438 } else if (!av_strcasecmp(cmd, "PixelFormat")) {
4439 get_arg(arg, sizeof(arg), &p);
4441 video_enc.pix_fmt = av_get_pix_fmt(arg);
4442 if (video_enc.pix_fmt == AV_PIX_FMT_NONE) {
4443 ERROR("Unknown pixel format: %s\n", arg);
4446 } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
4447 get_arg(arg, sizeof(arg), &p);
4449 video_enc.gop_size = atoi(arg);
4450 } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
4452 video_enc.gop_size = 1;
4453 } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
4455 video_enc.mb_decision = FF_MB_DECISION_BITS;
4456 } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
4458 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4459 video_enc.flags |= CODEC_FLAG_4MV;
4461 } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
4462 !av_strcasecmp(cmd, "AVOptionAudio")) {
4464 AVCodecContext *avctx;
4466 get_arg(arg, sizeof(arg), &p);
4467 get_arg(arg2, sizeof(arg2), &p);
4468 if (!av_strcasecmp(cmd, "AVOptionVideo")) {
4470 type = AV_OPT_FLAG_VIDEO_PARAM;
4473 type = AV_OPT_FLAG_AUDIO_PARAM;
4475 if (ffserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4476 ERROR("AVOption error: %s %s\n", arg, arg2);
4478 } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
4479 !av_strcasecmp(cmd, "AVPresetAudio")) {
4480 AVCodecContext *avctx;
4482 get_arg(arg, sizeof(arg), &p);
4483 if (!av_strcasecmp(cmd, "AVPresetVideo")) {
4485 video_enc.codec_id = video_id;
4486 type = AV_OPT_FLAG_VIDEO_PARAM;
4489 audio_enc.codec_id = audio_id;
4490 type = AV_OPT_FLAG_AUDIO_PARAM;
4492 if (ffserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4493 ERROR("AVPreset error: %s\n", arg);
4495 } else if (!av_strcasecmp(cmd, "VideoTag")) {
4496 get_arg(arg, sizeof(arg), &p);
4497 if ((strlen(arg) == 4) && stream)
4498 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4499 } else if (!av_strcasecmp(cmd, "BitExact")) {
4501 video_enc.flags |= CODEC_FLAG_BITEXACT;
4502 } else if (!av_strcasecmp(cmd, "DctFastint")) {
4504 video_enc.dct_algo = FF_DCT_FASTINT;
4505 } else if (!av_strcasecmp(cmd, "IdctSimple")) {
4507 video_enc.idct_algo = FF_IDCT_SIMPLE;
4508 } else if (!av_strcasecmp(cmd, "Qscale")) {
4509 get_arg(arg, sizeof(arg), &p);
4511 video_enc.flags |= CODEC_FLAG_QSCALE;
4512 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4514 } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
4515 get_arg(arg, sizeof(arg), &p);
4517 video_enc.max_qdiff = atoi(arg);
4518 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4519 ERROR("VideoQDiff out of range\n");
4522 } else if (!av_strcasecmp(cmd, "VideoQMax")) {
4523 get_arg(arg, sizeof(arg), &p);
4525 video_enc.qmax = atoi(arg);
4526 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4527 ERROR("VideoQMax out of range\n");
4530 } else if (!av_strcasecmp(cmd, "VideoQMin")) {
4531 get_arg(arg, sizeof(arg), &p);
4533 video_enc.qmin = atoi(arg);
4534 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4535 ERROR("VideoQMin out of range\n");
4538 } else if (!av_strcasecmp(cmd, "LumiMask")) {
4539 get_arg(arg, sizeof(arg), &p);
4541 video_enc.lumi_masking = atof(arg);
4542 } else if (!av_strcasecmp(cmd, "DarkMask")) {
4543 get_arg(arg, sizeof(arg), &p);
4545 video_enc.dark_masking = atof(arg);
4546 } else if (!av_strcasecmp(cmd, "NoVideo")) {
4547 video_id = AV_CODEC_ID_NONE;
4548 } else if (!av_strcasecmp(cmd, "NoAudio")) {
4549 audio_id = AV_CODEC_ID_NONE;
4550 } else if (!av_strcasecmp(cmd, "ACL")) {
4551 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4552 } else if (!av_strcasecmp(cmd, "DynamicACL")) {
4554 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4556 } else if (!av_strcasecmp(cmd, "RTSPOption")) {
4557 get_arg(arg, sizeof(arg), &p);
4559 av_freep(&stream->rtsp_option);
4560 stream->rtsp_option = av_strdup(arg);
4562 } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
4563 get_arg(arg, sizeof(arg), &p);
4565 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4566 ERROR("Invalid host/IP address: %s\n", arg);
4568 stream->is_multicast = 1;
4569 stream->loop = 1; /* default is looping */
4571 } else if (!av_strcasecmp(cmd, "MulticastPort")) {
4572 get_arg(arg, sizeof(arg), &p);
4574 stream->multicast_port = atoi(arg);
4575 } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
4576 get_arg(arg, sizeof(arg), &p);
4578 stream->multicast_ttl = atoi(arg);
4579 } else if (!av_strcasecmp(cmd, "NoLoop")) {
4582 } else if (!av_strcasecmp(cmd, "</Stream>")) {
4584 ERROR("No corresponding <Stream> for </Stream>\n");
4586 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4587 if (audio_id != AV_CODEC_ID_NONE) {
4588 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4589 audio_enc.codec_id = audio_id;
4590 add_codec(stream, &audio_enc);
4592 if (video_id != AV_CODEC_ID_NONE) {
4593 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4594 video_enc.codec_id = video_id;
4595 add_codec(stream, &video_enc);
4600 } else if (!av_strcasecmp(cmd, "<Redirect")) {
4601 /*********************************************/
4603 if (stream || feed || redirect) {
4604 ERROR("Already in a tag\n");
4606 redirect = av_mallocz(sizeof(FFStream));
4607 *last_stream = redirect;
4608 last_stream = &redirect->next;
4610 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4611 q = strrchr(redirect->filename, '>');
4614 redirect->stream_type = STREAM_TYPE_REDIRECT;
4616 } else if (!av_strcasecmp(cmd, "URL")) {
4618 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4619 } else if (!av_strcasecmp(cmd, "</Redirect>")) {
4621 ERROR("No corresponding <Redirect> for </Redirect>\n");
4623 if (!redirect->feed_filename[0]) {
4624 ERROR("No URL found for <Redirect>\n");
4628 } else if (!av_strcasecmp(cmd, "LoadModule")) {
4629 ERROR("Loadable modules no longer supported\n");
4631 ERROR("Incorrect keyword: '%s'\n", cmd);
4643 static void handle_child_exit(int sig)
4648 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4651 for (feed = first_feed; feed; feed = feed->next) {
4652 if (feed->pid == pid) {
4653 int uptime = time(0) - feed->pid_start;
4656 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4659 /* Turn off any more restarts */
4660 feed->child_argv = 0;
4665 need_to_start_children = 1;
4668 static void opt_debug(void)
4671 logfilename[0] = '-';
4674 void show_help_default(const char *opt, const char *arg)
4676 printf("usage: ffserver [options]\n"
4677 "Hyper fast multi format Audio/Video streaming server\n");
4679 show_help_options(options, "Main options:", 0, 0, 0);
4682 static const OptionDef options[] = {
4683 #include "cmdutils_common_opts.h"
4684 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4685 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4686 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
4690 int main(int argc, char **argv)
4692 struct sigaction sigact = { { 0 } };
4694 config_filename = av_strdup("/etc/ffserver.conf");
4696 parse_loglevel(argc, argv, options);
4698 avformat_network_init();
4700 show_banner(argc, argv, options);
4702 my_program_name = argv[0];
4704 parse_options(NULL, argc, argv, options, NULL);
4706 unsetenv("http_proxy"); /* Kill the http_proxy */
4708 av_lfg_init(&random_state, av_get_random_seed());
4710 sigact.sa_handler = handle_child_exit;
4711 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4712 sigaction(SIGCHLD, &sigact, 0);
4714 if (parse_ffconfig(config_filename) < 0) {
4715 fprintf(stderr, "Incorrect config file - exiting.\n");
4718 av_freep(&config_filename);
4720 /* open log file if needed */
4721 if (logfilename[0] != '\0') {
4722 if (!strcmp(logfilename, "-"))
4725 logfile = fopen(logfilename, "a");
4726 av_log_set_callback(http_av_log);
4729 build_file_streams();
4731 build_feed_streams();
4733 compute_bandwidth();
4736 signal(SIGPIPE, SIG_IGN);
4738 if (http_server() < 0) {
4739 http_log("Could not start server\n");