2 * Multiple format streaming server
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #define closesocket close
29 #include "libavformat/avformat.h"
30 // FIXME those are internal headers, avserver _really_ shouldn't use them
31 #include "libavformat/ffm.h"
32 #include "libavformat/network.h"
33 #include "libavformat/os_support.h"
34 #include "libavformat/rtpdec.h"
35 #include "libavformat/rtsp.h"
36 #include "libavformat/avio_internal.h"
37 #include "libavformat/internal.h"
38 #include "libavformat/url.h"
40 #include "libavutil/avstring.h"
41 #include "libavutil/lfg.h"
42 #include "libavutil/dict.h"
43 #include "libavutil/intreadwrite.h"
44 #include "libavutil/mathematics.h"
45 #include "libavutil/random_seed.h"
46 #include "libavutil/parseutils.h"
47 #include "libavutil/opt.h"
48 #include "libavutil/time.h"
53 #include <sys/ioctl.h>
67 const char program_name[] = "avserver";
68 const int program_birth_year = 2000;
70 static const OptionDef options[];
73 HTTPSTATE_WAIT_REQUEST,
74 HTTPSTATE_SEND_HEADER,
75 HTTPSTATE_SEND_DATA_HEADER,
76 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
77 HTTPSTATE_SEND_DATA_TRAILER,
78 HTTPSTATE_RECEIVE_DATA,
79 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
82 RTSPSTATE_WAIT_REQUEST,
84 RTSPSTATE_SEND_PACKET,
87 static const char *http_state[] = {
103 #define MAX_STREAMS 20
105 #define IOBUFFER_INIT_SIZE 8192
107 /* timeouts are in ms */
108 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
109 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
111 #define SYNC_TIMEOUT (10 * 1000)
113 typedef struct RTSPActionServerSetup {
115 char transport_option[512];
116 } RTSPActionServerSetup;
119 int64_t count1, count2;
120 int64_t time1, time2;
123 /* context associated with one connection */
124 typedef struct HTTPContext {
125 enum HTTPState state;
126 int fd; /* socket file descriptor */
127 struct sockaddr_in from_addr; /* origin */
128 struct pollfd *poll_entry; /* used when polling */
130 uint8_t *buffer_ptr, *buffer_end;
133 int chunked_encoding;
134 int chunk_size; /* 0 if it needs to be read */
135 struct HTTPContext *next;
136 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
140 /* input format handling */
141 AVFormatContext *fmt_in;
142 int64_t start_time; /* In milliseconds - this wraps fairly often */
143 int64_t first_pts; /* initial pts value */
144 int64_t cur_pts; /* current pts value from the stream in us */
145 int64_t cur_frame_duration; /* duration of the current frame in us */
146 int cur_frame_bytes; /* output frame size, needed to compute
147 the time at which we send each
149 int pts_stream_index; /* stream we choose as clock reference */
150 int64_t cur_clock; /* current clock reference value in us */
151 /* output format handling */
152 struct FFStream *stream;
153 /* -1 is invalid stream */
154 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
155 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
157 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
158 int last_packet_sent; /* true if last data packet was sent */
160 DataRateData datarate;
167 int is_packetized; /* if true, the stream is packetized */
168 int packet_stream_index; /* current stream for output in state machine */
170 /* RTSP state specific */
171 uint8_t *pb_buffer; /* XXX: use that in all the code */
173 int seq; /* RTSP sequence number */
175 /* RTP state specific */
176 enum RTSPLowerTransport rtp_protocol;
177 char session_id[32]; /* session id */
178 AVFormatContext *rtp_ctx[MAX_STREAMS];
180 /* RTP/UDP specific */
181 URLContext *rtp_handles[MAX_STREAMS];
183 /* RTP/TCP specific */
184 struct HTTPContext *rtsp_c;
185 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
188 /* each generated stream is described here */
192 STREAM_TYPE_REDIRECT,
195 enum IPAddressAction {
200 typedef struct IPAddressACL {
201 struct IPAddressACL *next;
202 enum IPAddressAction action;
203 /* These are in host order */
204 struct in_addr first;
208 /* description of each stream of the avserver.conf file */
209 typedef struct FFStream {
210 enum StreamType stream_type;
211 char filename[1024]; /* stream filename */
212 struct FFStream *feed; /* feed we are using (can be null if
214 AVDictionary *in_opts; /* input parameters */
215 AVInputFormat *ifmt; /* if non NULL, force input format */
218 char dynamic_acl[1024];
220 int prebuffer; /* Number of millseconds early to start */
221 int64_t max_time; /* Number of milliseconds to run */
223 AVStream *streams[MAX_STREAMS];
224 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
225 char feed_filename[1024]; /* file name of the feed storage, or
226 input file name for a stream */
231 pid_t pid; /* of avconv process */
232 time_t pid_start; /* of avconv process */
234 struct FFStream *next;
235 unsigned bandwidth; /* bandwidth, in kbits/s */
238 /* multicast specific */
240 struct in_addr multicast_ip;
241 int multicast_port; /* first port used for multicast */
243 int loop; /* if true, send the stream in loops (only meaningful if file) */
246 int feed_opened; /* true if someone is writing to the feed */
247 int is_feed; /* true if it is a feed */
248 int readonly; /* True if writing is prohibited to the file */
249 int truncate; /* True if feeder connection truncate the feed file */
251 int64_t bytes_served;
252 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
253 int64_t feed_write_index; /* current write position in feed (it wraps around) */
254 int64_t feed_size; /* current size of feed */
255 struct FFStream *next_feed;
258 typedef struct FeedData {
259 long long data_count;
260 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
263 static struct sockaddr_in my_http_addr;
264 static struct sockaddr_in my_rtsp_addr;
266 static char logfilename[1024];
267 static HTTPContext *first_http_ctx;
268 static FFStream *first_feed; /* contains only feeds */
269 static FFStream *first_stream; /* contains all streams, including feeds */
271 static void new_connection(int server_fd, int is_rtsp);
272 static void close_connection(HTTPContext *c);
275 static int handle_connection(HTTPContext *c);
276 static int http_parse_request(HTTPContext *c);
277 static int http_send_data(HTTPContext *c);
278 static void compute_status(HTTPContext *c);
279 static int open_input_stream(HTTPContext *c, const char *info);
280 static int http_start_receive_data(HTTPContext *c);
281 static int http_receive_data(HTTPContext *c);
284 static int rtsp_parse_request(HTTPContext *c);
285 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
286 static void rtsp_cmd_options(HTTPContext *c, const char *url);
287 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
288 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
289 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
290 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
293 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
294 struct in_addr my_ip);
297 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
298 FFStream *stream, const char *session_id,
299 enum RTSPLowerTransport rtp_protocol);
300 static int rtp_new_av_stream(HTTPContext *c,
301 int stream_index, struct sockaddr_in *dest_addr,
302 HTTPContext *rtsp_c);
304 static const char *my_program_name;
306 static const char *config_filename = "/etc/avserver.conf";
308 static int avserver_debug;
309 static int no_launch;
310 static int need_to_start_children;
312 /* maximum number of simultaneous HTTP connections */
313 static unsigned int nb_max_http_connections = 2000;
314 static unsigned int nb_max_connections = 5;
315 static unsigned int nb_connections;
317 static uint64_t max_bandwidth = 1000;
318 static uint64_t current_bandwidth;
320 static int64_t cur_time; // Making this global saves on passing it around everywhere
322 static AVLFG random_state;
324 static FILE *logfile = NULL;
326 static int64_t ffm_read_write_index(int fd)
330 lseek(fd, 8, SEEK_SET);
331 if (read(fd, buf, 8) != 8)
336 static int ffm_write_write_index(int fd, int64_t pos)
342 buf[i] = (pos >> (56 - i * 8)) & 0xff;
343 lseek(fd, 8, SEEK_SET);
344 if (write(fd, buf, 8) != 8)
349 static void ffm_set_write_index(AVFormatContext *s, int64_t pos,
352 FFMContext *ffm = s->priv_data;
353 ffm->write_index = pos;
354 ffm->file_size = file_size;
357 /* FIXME: make avserver work with IPv6 */
358 /* resolve host with also IP address parsing */
359 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
362 if (!ff_inet_aton(hostname, sin_addr)) {
364 struct addrinfo *ai, *cur;
365 struct addrinfo hints = { 0 };
366 hints.ai_family = AF_INET;
367 if (getaddrinfo(hostname, NULL, &hints, &ai))
369 /* getaddrinfo returns a linked list of addrinfo structs.
370 * Even if we set ai_family = AF_INET above, make sure
371 * that the returned one actually is of the correct type. */
372 for (cur = ai; cur; cur = cur->ai_next) {
373 if (cur->ai_family == AF_INET) {
374 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
383 hp = gethostbyname(hostname);
386 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
392 static char *ctime1(char *buf2)
400 p = buf2 + strlen(p) - 1;
406 static void http_vlog(const char *fmt, va_list vargs)
408 static int print_prefix = 1;
413 fprintf(logfile, "%s ", buf);
415 print_prefix = strstr(fmt, "\n") != NULL;
416 vfprintf(logfile, fmt, vargs);
422 __attribute__ ((format (printf, 1, 2)))
424 static void http_log(const char *fmt, ...)
427 va_start(vargs, fmt);
428 http_vlog(fmt, vargs);
432 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
434 static int print_prefix = 1;
435 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
436 if (level > av_log_get_level())
438 if (print_prefix && avc)
439 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
440 print_prefix = strstr(fmt, "\n") != NULL;
441 http_vlog(fmt, vargs);
444 static void log_connection(HTTPContext *c)
449 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
450 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
451 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
454 static void update_datarate(DataRateData *drd, int64_t count)
456 if (!drd->time1 && !drd->count1) {
457 drd->time1 = drd->time2 = cur_time;
458 drd->count1 = drd->count2 = count;
459 } else if (cur_time - drd->time2 > 5000) {
460 drd->time1 = drd->time2;
461 drd->count1 = drd->count2;
462 drd->time2 = cur_time;
467 /* In bytes per second */
468 static int compute_datarate(DataRateData *drd, int64_t count)
470 if (cur_time == drd->time1)
473 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
477 static void start_children(FFStream *feed)
482 for (; feed; feed = feed->next) {
483 if (feed->child_argv && !feed->pid) {
484 feed->pid_start = time(0);
489 http_log("Unable to create children\n");
498 av_strlcpy(pathname, my_program_name, sizeof(pathname));
500 slash = strrchr(pathname, '/');
505 strcpy(slash, "avconv");
507 http_log("Launch command line: ");
508 http_log("%s ", pathname);
509 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
510 http_log("%s ", feed->child_argv[i]);
513 for (i = 3; i < 256; i++)
516 if (!avserver_debug) {
517 if (!freopen("/dev/null", "r", stdin))
518 http_log("failed to redirect STDIN to /dev/null\n;");
519 if (!freopen("/dev/null", "w", stdout))
520 http_log("failed to redirect STDOUT to /dev/null\n;");
521 if (!freopen("/dev/null", "w", stderr))
522 http_log("failed to redirect STDERR to /dev/null\n;");
525 signal(SIGPIPE, SIG_DFL);
527 execvp(pathname, feed->child_argv);
535 /* open a listening socket */
536 static int socket_open_listen(struct sockaddr_in *my_addr)
540 server_fd = socket(AF_INET,SOCK_STREAM,0);
547 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
549 my_addr->sin_family = AF_INET;
550 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
552 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
554 closesocket(server_fd);
558 if (listen (server_fd, 5) < 0) {
560 closesocket(server_fd);
563 ff_socket_nonblock(server_fd, 1);
568 /* start all multicast streams */
569 static void start_multicast(void)
574 struct sockaddr_in dest_addr;
575 int default_port, stream_index;
578 for(stream = first_stream; stream != NULL; stream = stream->next) {
579 if (stream->is_multicast) {
580 /* open the RTP connection */
581 snprintf(session_id, sizeof(session_id), "%08x%08x",
582 av_lfg_get(&random_state), av_lfg_get(&random_state));
584 /* choose a port if none given */
585 if (stream->multicast_port == 0) {
586 stream->multicast_port = default_port;
590 dest_addr.sin_family = AF_INET;
591 dest_addr.sin_addr = stream->multicast_ip;
592 dest_addr.sin_port = htons(stream->multicast_port);
594 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
595 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
599 if (open_input_stream(rtp_c, "") < 0) {
600 http_log("Could not open input stream for stream '%s'\n",
605 /* open each RTP stream */
606 for(stream_index = 0; stream_index < stream->nb_streams;
608 dest_addr.sin_port = htons(stream->multicast_port +
610 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
611 http_log("Could not open output stream '%s/streamid=%d'\n",
612 stream->filename, stream_index);
617 /* change state to send data */
618 rtp_c->state = HTTPSTATE_SEND_DATA;
623 /* main loop of the http server */
624 static int http_server(void)
626 int server_fd = 0, rtsp_server_fd = 0;
627 int ret, delay, delay1;
628 struct pollfd *poll_table, *poll_entry;
629 HTTPContext *c, *c_next;
631 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
632 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
636 if (my_http_addr.sin_port) {
637 server_fd = socket_open_listen(&my_http_addr);
642 if (my_rtsp_addr.sin_port) {
643 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
644 if (rtsp_server_fd < 0)
648 if (!rtsp_server_fd && !server_fd) {
649 http_log("HTTP and RTSP disabled.\n");
653 http_log("AVserver started.\n");
655 start_children(first_feed);
660 poll_entry = poll_table;
662 poll_entry->fd = server_fd;
663 poll_entry->events = POLLIN;
666 if (rtsp_server_fd) {
667 poll_entry->fd = rtsp_server_fd;
668 poll_entry->events = POLLIN;
672 /* wait for events on each HTTP handle */
679 case HTTPSTATE_SEND_HEADER:
680 case RTSPSTATE_SEND_REPLY:
681 case RTSPSTATE_SEND_PACKET:
682 c->poll_entry = poll_entry;
684 poll_entry->events = POLLOUT;
687 case HTTPSTATE_SEND_DATA_HEADER:
688 case HTTPSTATE_SEND_DATA:
689 case HTTPSTATE_SEND_DATA_TRAILER:
690 if (!c->is_packetized) {
691 /* for TCP, we output as much as we can (may need to put a limit) */
692 c->poll_entry = poll_entry;
694 poll_entry->events = POLLOUT;
697 /* when avserver is doing the timing, we work by
698 looking at which packet need to be sent every
700 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
705 case HTTPSTATE_WAIT_REQUEST:
706 case HTTPSTATE_RECEIVE_DATA:
707 case HTTPSTATE_WAIT_FEED:
708 case RTSPSTATE_WAIT_REQUEST:
709 /* need to catch errors */
710 c->poll_entry = poll_entry;
712 poll_entry->events = POLLIN;/* Maybe this will work */
716 c->poll_entry = NULL;
722 /* wait for an event on one connection. We poll at least every
723 second to handle timeouts */
725 ret = poll(poll_table, poll_entry - poll_table, delay);
726 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
727 ff_neterrno() != AVERROR(EINTR))
731 cur_time = av_gettime() / 1000;
733 if (need_to_start_children) {
734 need_to_start_children = 0;
735 start_children(first_feed);
738 /* now handle the events */
739 for(c = first_http_ctx; c != NULL; c = c_next) {
741 if (handle_connection(c) < 0) {
742 /* close and free the connection */
748 poll_entry = poll_table;
750 /* new HTTP connection request ? */
751 if (poll_entry->revents & POLLIN)
752 new_connection(server_fd, 0);
755 if (rtsp_server_fd) {
756 /* new RTSP connection request ? */
757 if (poll_entry->revents & POLLIN)
758 new_connection(rtsp_server_fd, 1);
763 /* start waiting for a new HTTP/RTSP request */
764 static void start_wait_request(HTTPContext *c, int is_rtsp)
766 c->buffer_ptr = c->buffer;
767 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
770 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
771 c->state = RTSPSTATE_WAIT_REQUEST;
773 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
774 c->state = HTTPSTATE_WAIT_REQUEST;
778 static void http_send_too_busy_reply(int fd)
781 int len = snprintf(buffer, sizeof(buffer),
782 "HTTP/1.0 503 Server too busy\r\n"
783 "Content-type: text/html\r\n"
785 "<html><head><title>Too busy</title></head><body>\r\n"
786 "<p>The server is too busy to serve your request at this time.</p>\r\n"
787 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
788 "</body></html>\r\n",
789 nb_connections, nb_max_connections);
790 send(fd, buffer, len, 0);
794 static void new_connection(int server_fd, int is_rtsp)
796 struct sockaddr_in from_addr;
799 HTTPContext *c = NULL;
801 len = sizeof(from_addr);
802 fd = accept(server_fd, (struct sockaddr *)&from_addr,
805 http_log("error during accept %s\n", strerror(errno));
808 ff_socket_nonblock(fd, 1);
810 if (nb_connections >= nb_max_connections) {
811 http_send_too_busy_reply(fd);
815 /* add a new connection */
816 c = av_mallocz(sizeof(HTTPContext));
821 c->poll_entry = NULL;
822 c->from_addr = from_addr;
823 c->buffer_size = IOBUFFER_INIT_SIZE;
824 c->buffer = av_malloc(c->buffer_size);
828 c->next = first_http_ctx;
832 start_wait_request(c, is_rtsp);
844 static void close_connection(HTTPContext *c)
846 HTTPContext **cp, *c1;
848 AVFormatContext *ctx;
852 /* remove connection from list */
853 cp = &first_http_ctx;
854 while ((*cp) != NULL) {
862 /* remove references, if any (XXX: do it faster) */
863 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
868 /* remove connection associated resources */
872 /* close each frame parser */
873 for(i=0;i<c->fmt_in->nb_streams;i++) {
874 st = c->fmt_in->streams[i];
875 if (st->codec->codec)
876 avcodec_close(st->codec);
878 avformat_close_input(&c->fmt_in);
881 /* free RTP output streams if any */
884 nb_streams = c->stream->nb_streams;
886 for(i=0;i<nb_streams;i++) {
889 av_write_trailer(ctx);
890 av_dict_free(&ctx->metadata);
891 av_free(ctx->streams[0]);
894 h = c->rtp_handles[i];
901 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
904 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
905 av_write_trailer(ctx);
906 av_freep(&c->pb_buffer);
907 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
912 for(i=0; i<ctx->nb_streams; i++)
913 av_free(ctx->streams[i]);
915 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
916 current_bandwidth -= c->stream->bandwidth;
918 /* signal that there is no feed if we are the feeder socket */
919 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
920 c->stream->feed_opened = 0;
924 av_freep(&c->pb_buffer);
925 av_freep(&c->packet_buffer);
931 static int handle_connection(HTTPContext *c)
936 case HTTPSTATE_WAIT_REQUEST:
937 case RTSPSTATE_WAIT_REQUEST:
939 if ((c->timeout - cur_time) < 0)
941 if (c->poll_entry->revents & (POLLERR | POLLHUP))
944 /* no need to read if no events */
945 if (!(c->poll_entry->revents & POLLIN))
949 len = recv(c->fd, c->buffer_ptr, 1, 0);
951 if (ff_neterrno() != AVERROR(EAGAIN) &&
952 ff_neterrno() != AVERROR(EINTR))
954 } else if (len == 0) {
957 /* search for end of request. */
959 c->buffer_ptr += len;
961 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
962 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
963 /* request found : parse it and reply */
964 if (c->state == HTTPSTATE_WAIT_REQUEST) {
965 ret = http_parse_request(c);
967 ret = rtsp_parse_request(c);
971 } else if (ptr >= c->buffer_end) {
972 /* request too long: cannot do anything */
974 } else goto read_loop;
978 case HTTPSTATE_SEND_HEADER:
979 if (c->poll_entry->revents & (POLLERR | POLLHUP))
982 /* no need to write if no events */
983 if (!(c->poll_entry->revents & POLLOUT))
985 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
987 if (ff_neterrno() != AVERROR(EAGAIN) &&
988 ff_neterrno() != AVERROR(EINTR)) {
989 /* error : close connection */
990 av_freep(&c->pb_buffer);
994 c->buffer_ptr += len;
996 c->stream->bytes_served += len;
997 c->data_count += len;
998 if (c->buffer_ptr >= c->buffer_end) {
999 av_freep(&c->pb_buffer);
1000 /* if error, exit */
1003 /* all the buffer was sent : synchronize to the incoming stream */
1004 c->state = HTTPSTATE_SEND_DATA_HEADER;
1005 c->buffer_ptr = c->buffer_end = c->buffer;
1010 case HTTPSTATE_SEND_DATA:
1011 case HTTPSTATE_SEND_DATA_HEADER:
1012 case HTTPSTATE_SEND_DATA_TRAILER:
1013 /* for packetized output, we consider we can always write (the
1014 input streams sets the speed). It may be better to verify
1015 that we do not rely too much on the kernel queues */
1016 if (!c->is_packetized) {
1017 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1020 /* no need to read if no events */
1021 if (!(c->poll_entry->revents & POLLOUT))
1024 if (http_send_data(c) < 0)
1026 /* close connection if trailer sent */
1027 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1030 case HTTPSTATE_RECEIVE_DATA:
1031 /* no need to read if no events */
1032 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1034 if (!(c->poll_entry->revents & POLLIN))
1036 if (http_receive_data(c) < 0)
1039 case HTTPSTATE_WAIT_FEED:
1040 /* no need to read if no events */
1041 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1044 /* nothing to do, we'll be waken up by incoming feed packets */
1047 case RTSPSTATE_SEND_REPLY:
1048 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1049 av_freep(&c->pb_buffer);
1052 /* no need to write if no events */
1053 if (!(c->poll_entry->revents & POLLOUT))
1055 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1057 if (ff_neterrno() != AVERROR(EAGAIN) &&
1058 ff_neterrno() != AVERROR(EINTR)) {
1059 /* error : close connection */
1060 av_freep(&c->pb_buffer);
1064 c->buffer_ptr += len;
1065 c->data_count += len;
1066 if (c->buffer_ptr >= c->buffer_end) {
1067 /* all the buffer was sent : wait for a new request */
1068 av_freep(&c->pb_buffer);
1069 start_wait_request(c, 1);
1073 case RTSPSTATE_SEND_PACKET:
1074 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1075 av_freep(&c->packet_buffer);
1078 /* no need to write if no events */
1079 if (!(c->poll_entry->revents & POLLOUT))
1081 len = send(c->fd, c->packet_buffer_ptr,
1082 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1084 if (ff_neterrno() != AVERROR(EAGAIN) &&
1085 ff_neterrno() != AVERROR(EINTR)) {
1086 /* error : close connection */
1087 av_freep(&c->packet_buffer);
1091 c->packet_buffer_ptr += len;
1092 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1093 /* all the buffer was sent : wait for a new request */
1094 av_freep(&c->packet_buffer);
1095 c->state = RTSPSTATE_WAIT_REQUEST;
1099 case HTTPSTATE_READY:
1108 static int extract_rates(char *rates, int ratelen, const char *request)
1112 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1113 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1114 const char *q = p + 7;
1116 while (*q && *q != '\n' && isspace(*q))
1119 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1125 memset(rates, 0xff, ratelen);
1128 while (*q && *q != '\n' && *q != ':')
1131 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1135 if (stream_no < ratelen && stream_no >= 0)
1136 rates[stream_no] = rate_no;
1138 while (*q && *q != '\n' && !isspace(*q))
1145 p = strchr(p, '\n');
1155 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1158 int best_bitrate = 100000000;
1161 for (i = 0; i < feed->nb_streams; i++) {
1162 AVCodecContext *feed_codec = feed->streams[i]->codec;
1164 if (feed_codec->codec_id != codec->codec_id ||
1165 feed_codec->sample_rate != codec->sample_rate ||
1166 feed_codec->width != codec->width ||
1167 feed_codec->height != codec->height)
1170 /* Potential stream */
1172 /* We want the fastest stream less than bit_rate, or the slowest
1173 * faster than bit_rate
1176 if (feed_codec->bit_rate <= bit_rate) {
1177 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1178 best_bitrate = feed_codec->bit_rate;
1182 if (feed_codec->bit_rate < best_bitrate) {
1183 best_bitrate = feed_codec->bit_rate;
1192 static int modify_current_stream(HTTPContext *c, char *rates)
1195 FFStream *req = c->stream;
1196 int action_required = 0;
1198 /* Not much we can do for a feed */
1202 for (i = 0; i < req->nb_streams; i++) {
1203 AVCodecContext *codec = req->streams[i]->codec;
1207 c->switch_feed_streams[i] = req->feed_streams[i];
1210 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1213 /* Wants off or slow */
1214 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1216 /* This doesn't work well when it turns off the only stream! */
1217 c->switch_feed_streams[i] = -2;
1218 c->feed_streams[i] = -2;
1223 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1224 action_required = 1;
1227 return action_required;
1230 /* XXX: factorize in utils.c ? */
1231 /* XXX: take care with different space meaning */
1232 static void skip_spaces(const char **pp)
1236 while (*p == ' ' || *p == '\t')
1241 static void get_word(char *buf, int buf_size, const char **pp)
1249 while (!isspace(*p) && *p != '\0') {
1250 if ((q - buf) < buf_size - 1)
1259 static void get_arg(char *buf, int buf_size, const char **pp)
1266 while (isspace(*p)) p++;
1269 if (*p == '\"' || *p == '\'')
1281 if ((q - buf) < buf_size - 1)
1286 if (quote && *p == quote)
1291 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1292 const char *p, const char *filename, int line_num)
1298 get_arg(arg, sizeof(arg), &p);
1299 if (av_strcasecmp(arg, "allow") == 0)
1300 acl.action = IP_ALLOW;
1301 else if (av_strcasecmp(arg, "deny") == 0)
1302 acl.action = IP_DENY;
1304 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1305 filename, line_num, arg);
1309 get_arg(arg, sizeof(arg), &p);
1311 if (resolve_host(&acl.first, arg) != 0) {
1312 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1313 filename, line_num, arg);
1316 acl.last = acl.first;
1318 get_arg(arg, sizeof(arg), &p);
1321 if (resolve_host(&acl.last, arg) != 0) {
1322 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1323 filename, line_num, arg);
1329 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1330 IPAddressACL **naclp = 0;
1336 naclp = &stream->acl;
1342 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1343 filename, line_num);
1349 naclp = &(*naclp)->next;
1357 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1362 IPAddressACL *acl = NULL;
1366 f = fopen(stream->dynamic_acl, "r");
1368 perror(stream->dynamic_acl);
1372 acl = av_mallocz(sizeof(IPAddressACL));
1376 if (fgets(line, sizeof(line), f) == NULL)
1382 if (*p == '\0' || *p == '#')
1384 get_arg(cmd, sizeof(cmd), &p);
1386 if (!av_strcasecmp(cmd, "ACL"))
1387 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1394 static void free_acl_list(IPAddressACL *in_acl)
1396 IPAddressACL *pacl,*pacl2;
1406 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1408 enum IPAddressAction last_action = IP_DENY;
1410 struct in_addr *src = &c->from_addr.sin_addr;
1411 unsigned long src_addr = src->s_addr;
1413 for (acl = in_acl; acl; acl = acl->next) {
1414 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1415 return (acl->action == IP_ALLOW) ? 1 : 0;
1416 last_action = acl->action;
1419 /* Nothing matched, so return not the last action */
1420 return (last_action == IP_DENY) ? 1 : 0;
1423 static int validate_acl(FFStream *stream, HTTPContext *c)
1429 /* if stream->acl is null validate_acl_list will return 1 */
1430 ret = validate_acl_list(stream->acl, c);
1432 if (stream->dynamic_acl[0]) {
1433 acl = parse_dynamic_acl(stream, c);
1435 ret = validate_acl_list(acl, c);
1443 /* compute the real filename of a file by matching it without its
1444 extensions to all the stream filenames */
1445 static void compute_real_filename(char *filename, int max_size)
1452 /* compute filename by matching without the file extensions */
1453 av_strlcpy(file1, filename, sizeof(file1));
1454 p = strrchr(file1, '.');
1457 for(stream = first_stream; stream != NULL; stream = stream->next) {
1458 av_strlcpy(file2, stream->filename, sizeof(file2));
1459 p = strrchr(file2, '.');
1462 if (!strcmp(file1, file2)) {
1463 av_strlcpy(filename, stream->filename, max_size);
1478 /* parse http request and prepare header */
1479 static int http_parse_request(HTTPContext *c)
1483 enum RedirType redir_type;
1485 char info[1024], filename[1024];
1489 const char *mime_type;
1493 const char *useragent = 0;
1496 get_word(cmd, sizeof(cmd), &p);
1497 av_strlcpy(c->method, cmd, sizeof(c->method));
1499 if (!strcmp(cmd, "GET"))
1501 else if (!strcmp(cmd, "POST"))
1506 get_word(url, sizeof(url), &p);
1507 av_strlcpy(c->url, url, sizeof(c->url));
1509 get_word(protocol, sizeof(protocol), (const char **)&p);
1510 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1513 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1516 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1518 /* find the filename and the optional info string in the request */
1519 p1 = strchr(url, '?');
1521 av_strlcpy(info, p1, sizeof(info));
1526 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1528 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1529 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1531 if (*useragent && *useragent != '\n' && isspace(*useragent))
1535 p = strchr(p, '\n');
1542 redir_type = REDIR_NONE;
1543 if (av_match_ext(filename, "asx")) {
1544 redir_type = REDIR_ASX;
1545 filename[strlen(filename)-1] = 'f';
1546 } else if (av_match_ext(filename, "asf") &&
1547 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1548 /* if this isn't WMP or lookalike, return the redirector file */
1549 redir_type = REDIR_ASF;
1550 } else if (av_match_ext(filename, "rpm,ram")) {
1551 redir_type = REDIR_RAM;
1552 strcpy(filename + strlen(filename)-2, "m");
1553 } else if (av_match_ext(filename, "rtsp")) {
1554 redir_type = REDIR_RTSP;
1555 compute_real_filename(filename, sizeof(filename) - 1);
1556 } else if (av_match_ext(filename, "sdp")) {
1557 redir_type = REDIR_SDP;
1558 compute_real_filename(filename, sizeof(filename) - 1);
1561 // "redirect" / request to index.html
1562 if (!strlen(filename))
1563 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1565 stream = first_stream;
1566 while (stream != NULL) {
1567 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1569 stream = stream->next;
1571 if (stream == NULL) {
1572 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1573 http_log("File '%s' not found\n", url);
1578 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1579 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1581 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1582 c->http_error = 301;
1584 q += snprintf(q, c->buffer_size,
1585 "HTTP/1.0 301 Moved\r\n"
1587 "Content-type: text/html\r\n"
1589 "<html><head><title>Moved</title></head><body>\r\n"
1590 "You should be <a href=\"%s\">redirected</a>.\r\n"
1591 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1592 /* prepare output buffer */
1593 c->buffer_ptr = c->buffer;
1595 c->state = HTTPSTATE_SEND_HEADER;
1599 /* If this is WMP, get the rate information */
1600 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1601 if (modify_current_stream(c, ratebuf)) {
1602 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1603 if (c->switch_feed_streams[i] >= 0)
1604 c->switch_feed_streams[i] = -1;
1609 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1610 current_bandwidth += stream->bandwidth;
1612 /* If already streaming this feed, do not let start another feeder. */
1613 if (stream->feed_opened) {
1614 snprintf(msg, sizeof(msg), "This feed is already being received.");
1615 http_log("Feed '%s' already being received\n", stream->feed_filename);
1619 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1620 c->http_error = 503;
1622 q += snprintf(q, c->buffer_size,
1623 "HTTP/1.0 503 Server too busy\r\n"
1624 "Content-type: text/html\r\n"
1626 "<html><head><title>Too busy</title></head><body>\r\n"
1627 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1628 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1629 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1630 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1631 /* prepare output buffer */
1632 c->buffer_ptr = c->buffer;
1634 c->state = HTTPSTATE_SEND_HEADER;
1638 if (redir_type != REDIR_NONE) {
1639 const char *hostinfo = 0;
1641 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1642 if (av_strncasecmp(p, "Host:", 5) == 0) {
1646 p = strchr(p, '\n');
1657 while (isspace(*hostinfo))
1660 eoh = strchr(hostinfo, '\n');
1662 if (eoh[-1] == '\r')
1665 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1666 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1667 hostbuf[eoh - hostinfo] = 0;
1669 c->http_error = 200;
1671 switch(redir_type) {
1673 q += snprintf(q, c->buffer_size,
1674 "HTTP/1.0 200 ASX Follows\r\n"
1675 "Content-type: video/x-ms-asf\r\n"
1677 "<ASX Version=\"3\">\r\n"
1678 //"<!-- Autogenerated by avserver -->\r\n"
1679 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1680 "</ASX>\r\n", hostbuf, filename, info);
1683 q += snprintf(q, c->buffer_size,
1684 "HTTP/1.0 200 RAM Follows\r\n"
1685 "Content-type: audio/x-pn-realaudio\r\n"
1687 "# Autogenerated by avserver\r\n"
1688 "http://%s/%s%s\r\n", hostbuf, filename, info);
1691 q += snprintf(q, c->buffer_size,
1692 "HTTP/1.0 200 ASF Redirect follows\r\n"
1693 "Content-type: video/x-ms-asf\r\n"
1696 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1700 char hostname[256], *p;
1701 /* extract only hostname */
1702 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1703 p = strrchr(hostname, ':');
1706 q += snprintf(q, c->buffer_size,
1707 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1708 /* XXX: incorrect mime type ? */
1709 "Content-type: application/x-rtsp\r\n"
1711 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1719 struct sockaddr_in my_addr;
1721 q += snprintf(q, c->buffer_size,
1722 "HTTP/1.0 200 OK\r\n"
1723 "Content-type: application/sdp\r\n"
1726 len = sizeof(my_addr);
1727 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1729 /* XXX: should use a dynamic buffer */
1730 sdp_data_size = prepare_sdp_description(stream,
1733 if (sdp_data_size > 0) {
1734 memcpy(q, sdp_data, sdp_data_size);
1746 /* prepare output buffer */
1747 c->buffer_ptr = c->buffer;
1749 c->state = HTTPSTATE_SEND_HEADER;
1755 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1759 stream->conns_served++;
1761 /* XXX: add there authenticate and IP match */
1764 /* if post, it means a feed is being sent */
1765 if (!stream->is_feed) {
1766 /* However it might be a status report from WMP! Let us log the
1767 * data as it might come in handy one day. */
1768 const char *logline = 0;
1771 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1772 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1776 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1777 client_id = strtol(p + 18, 0, 10);
1778 p = strchr(p, '\n');
1786 char *eol = strchr(logline, '\n');
1791 if (eol[-1] == '\r')
1793 http_log("%.*s\n", (int) (eol - logline), logline);
1794 c->suppress_log = 1;
1799 http_log("\nGot request:\n%s\n", c->buffer);
1802 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1805 /* Now we have to find the client_id */
1806 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1807 if (wmpc->wmp_client_id == client_id)
1811 if (wmpc && modify_current_stream(wmpc, ratebuf))
1812 wmpc->switch_pending = 1;
1815 snprintf(msg, sizeof(msg), "POST command not handled");
1819 if (http_start_receive_data(c) < 0) {
1820 snprintf(msg, sizeof(msg), "could not open feed");
1824 c->state = HTTPSTATE_RECEIVE_DATA;
1829 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1830 http_log("\nGot request:\n%s\n", c->buffer);
1833 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1836 /* open input stream */
1837 if (open_input_stream(c, info) < 0) {
1838 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1842 /* prepare http header */
1844 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1845 mime_type = c->stream->fmt->mime_type;
1847 mime_type = "application/x-octet-stream";
1848 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
1850 /* for asf, we need extra headers */
1851 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1852 /* Need to allocate a client id */
1854 c->wmp_client_id = av_lfg_get(&random_state);
1856 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
1858 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1859 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1861 /* prepare output buffer */
1863 c->buffer_ptr = c->buffer;
1865 c->state = HTTPSTATE_SEND_HEADER;
1868 c->http_error = 404;
1870 q += snprintf(q, c->buffer_size,
1871 "HTTP/1.0 404 Not Found\r\n"
1872 "Content-type: text/html\r\n"
1875 "<head><title>404 Not Found</title></head>\n"
1878 /* prepare output buffer */
1879 c->buffer_ptr = c->buffer;
1881 c->state = HTTPSTATE_SEND_HEADER;
1885 c->http_error = 200; /* horrible : we use this value to avoid
1886 going to the send data state */
1887 c->state = HTTPSTATE_SEND_HEADER;
1891 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1893 static const char suffix[] = " kMGTP";
1896 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1898 avio_printf(pb, "%"PRId64"%c", count, *s);
1901 static void compute_status(HTTPContext *c)
1910 if (avio_open_dyn_buf(&pb) < 0) {
1911 /* XXX: return an error ? */
1912 c->buffer_ptr = c->buffer;
1913 c->buffer_end = c->buffer;
1917 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1918 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1919 avio_printf(pb, "Pragma: no-cache\r\n");
1920 avio_printf(pb, "\r\n");
1922 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1923 if (c->stream->feed_filename[0])
1924 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1925 avio_printf(pb, "</head>\n<body>");
1926 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1928 avio_printf(pb, "<h2>Available Streams</h2>\n");
1929 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1930 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");
1931 stream = first_stream;
1932 while (stream != NULL) {
1933 char sfilename[1024];
1936 if (stream->feed != stream) {
1937 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1938 eosf = sfilename + strlen(sfilename);
1939 if (eosf - sfilename >= 4) {
1940 if (strcmp(eosf - 4, ".asf") == 0)
1941 strcpy(eosf - 4, ".asx");
1942 else if (strcmp(eosf - 3, ".rm") == 0)
1943 strcpy(eosf - 3, ".ram");
1944 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1945 /* generate a sample RTSP director if
1946 unicast. Generate an SDP redirector if
1948 eosf = strrchr(sfilename, '.');
1950 eosf = sfilename + strlen(sfilename);
1951 if (stream->is_multicast)
1952 strcpy(eosf, ".sdp");
1954 strcpy(eosf, ".rtsp");
1958 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1959 sfilename, stream->filename);
1960 avio_printf(pb, "<td align=right> %d <td align=right> ",
1961 stream->conns_served);
1962 fmt_bytecount(pb, stream->bytes_served);
1963 switch(stream->stream_type) {
1964 case STREAM_TYPE_LIVE: {
1965 int audio_bit_rate = 0;
1966 int video_bit_rate = 0;
1967 const char *audio_codec_name = "";
1968 const char *video_codec_name = "";
1969 const char *audio_codec_name_extra = "";
1970 const char *video_codec_name_extra = "";
1972 for(i=0;i<stream->nb_streams;i++) {
1973 AVStream *st = stream->streams[i];
1974 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1975 switch(st->codec->codec_type) {
1976 case AVMEDIA_TYPE_AUDIO:
1977 audio_bit_rate += st->codec->bit_rate;
1979 if (*audio_codec_name)
1980 audio_codec_name_extra = "...";
1981 audio_codec_name = codec->name;
1984 case AVMEDIA_TYPE_VIDEO:
1985 video_bit_rate += st->codec->bit_rate;
1987 if (*video_codec_name)
1988 video_codec_name_extra = "...";
1989 video_codec_name = codec->name;
1992 case AVMEDIA_TYPE_DATA:
1993 video_bit_rate += st->codec->bit_rate;
1999 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",
2002 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
2003 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
2005 avio_printf(pb, "<td>%s", stream->feed->filename);
2007 avio_printf(pb, "<td>%s", stream->feed_filename);
2008 avio_printf(pb, "\n");
2012 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
2016 stream = stream->next;
2018 avio_printf(pb, "</table>\n");
2020 stream = first_stream;
2021 while (stream != NULL) {
2022 if (stream->feed == stream) {
2023 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2025 avio_printf(pb, "Running as pid %d.\n", stream->pid);
2027 #if defined(linux) && !defined(CONFIG_NOCUTILS)
2032 /* This is somewhat linux specific I guess */
2033 snprintf(ps_cmd, sizeof(ps_cmd),
2034 "ps -o \"%%cpu,cputime\" --no-headers %d",
2037 pid_stat = popen(ps_cmd, "r");
2042 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2044 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2052 avio_printf(pb, "<p>");
2054 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");
2056 for (i = 0; i < stream->nb_streams; i++) {
2057 AVStream *st = stream->streams[i];
2058 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2059 const char *type = "unknown";
2060 char parameters[64];
2064 switch(st->codec->codec_type) {
2065 case AVMEDIA_TYPE_AUDIO:
2067 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2069 case AVMEDIA_TYPE_VIDEO:
2071 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2072 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2077 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2078 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2080 avio_printf(pb, "</table>\n");
2083 stream = stream->next;
2086 /* connection status */
2087 avio_printf(pb, "<h2>Connection Status</h2>\n");
2089 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2090 nb_connections, nb_max_connections);
2092 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2093 current_bandwidth, max_bandwidth);
2095 avio_printf(pb, "<table>\n");
2096 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");
2097 c1 = first_http_ctx;
2099 while (c1 != NULL) {
2105 for (j = 0; j < c1->stream->nb_streams; j++) {
2106 if (!c1->stream->feed)
2107 bitrate += c1->stream->streams[j]->codec->bit_rate;
2108 else if (c1->feed_streams[j] >= 0)
2109 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2114 p = inet_ntoa(c1->from_addr.sin_addr);
2115 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2117 c1->stream ? c1->stream->filename : "",
2118 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2121 http_state[c1->state]);
2122 fmt_bytecount(pb, bitrate);
2123 avio_printf(pb, "<td align=right>");
2124 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2125 avio_printf(pb, "<td align=right>");
2126 fmt_bytecount(pb, c1->data_count);
2127 avio_printf(pb, "\n");
2130 avio_printf(pb, "</table>\n");
2135 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2136 avio_printf(pb, "</body>\n</html>\n");
2138 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2139 c->buffer_ptr = c->pb_buffer;
2140 c->buffer_end = c->pb_buffer + len;
2143 static int open_input_stream(HTTPContext *c, const char *info)
2146 char input_filename[1024];
2147 AVFormatContext *s = NULL;
2151 /* find file name */
2152 if (c->stream->feed) {
2153 strcpy(input_filename, c->stream->feed->feed_filename);
2154 /* compute position (absolute time) */
2155 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2156 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2158 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2159 int prebuffer = strtol(buf, 0, 10);
2160 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2162 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2164 strcpy(input_filename, c->stream->feed_filename);
2165 /* compute position (relative time) */
2166 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2167 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2172 if (input_filename[0] == '\0')
2176 if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) {
2177 http_log("could not open %s: %d\n", input_filename, ret);
2180 s->flags |= AVFMT_FLAG_GENPTS;
2182 if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) {
2183 http_log("Could not find stream info '%s'\n", input_filename);
2184 avformat_close_input(&s);
2188 /* choose stream as clock source (we favorize video stream if
2189 present) for packet sending */
2190 c->pts_stream_index = 0;
2191 for(i=0;i<c->stream->nb_streams;i++) {
2192 if (c->pts_stream_index == 0 &&
2193 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2194 c->pts_stream_index = i;
2198 if (c->fmt_in->iformat->read_seek)
2199 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2200 /* set the start time (needed for maxtime and RTP packet timing) */
2201 c->start_time = cur_time;
2202 c->first_pts = AV_NOPTS_VALUE;
2206 /* return the server clock (in us) */
2207 static int64_t get_server_clock(HTTPContext *c)
2209 /* compute current pts value from system time */
2210 return (cur_time - c->start_time) * 1000;
2213 /* return the estimated time at which the current packet must be sent
2215 static int64_t get_packet_send_clock(HTTPContext *c)
2217 int bytes_left, bytes_sent, frame_bytes;
2219 frame_bytes = c->cur_frame_bytes;
2220 if (frame_bytes <= 0)
2223 bytes_left = c->buffer_end - c->buffer_ptr;
2224 bytes_sent = frame_bytes - bytes_left;
2225 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2230 static int http_prepare_data(HTTPContext *c)
2233 AVFormatContext *ctx;
2235 av_freep(&c->pb_buffer);
2237 case HTTPSTATE_SEND_DATA_HEADER:
2238 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2239 av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2240 av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2241 av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2242 av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2244 c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
2246 for(i=0;i<c->stream->nb_streams;i++) {
2248 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2249 /* if file or feed, then just take streams from FFStream struct */
2250 if (!c->stream->feed ||
2251 c->stream->feed == c->stream)
2252 src = c->stream->streams[i];
2254 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2256 *(c->fmt_ctx.streams[i]) = *src;
2257 c->fmt_ctx.streams[i]->priv_data = 0;
2258 c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
2259 AVStream, not in codec */
2261 /* set output format parameters */
2262 c->fmt_ctx.oformat = c->stream->fmt;
2263 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2265 c->got_key_frame = 0;
2267 /* prepare header and save header data in a stream */
2268 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2269 /* XXX: potential leak */
2272 c->fmt_ctx.pb->seekable = 0;
2275 * HACK to avoid mpeg ps muxer to spit many underflow errors
2276 * Default value from Libav
2277 * Try to set it use configuration option
2279 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2281 if (avformat_write_header(&c->fmt_ctx, NULL) < 0) {
2282 http_log("Error writing output header\n");
2285 av_dict_free(&c->fmt_ctx.metadata);
2287 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2288 c->buffer_ptr = c->pb_buffer;
2289 c->buffer_end = c->pb_buffer + len;
2291 c->state = HTTPSTATE_SEND_DATA;
2292 c->last_packet_sent = 0;
2294 case HTTPSTATE_SEND_DATA:
2295 /* find a new packet */
2296 /* read a packet from the input stream */
2297 if (c->stream->feed)
2298 ffm_set_write_index(c->fmt_in,
2299 c->stream->feed->feed_write_index,
2300 c->stream->feed->feed_size);
2302 if (c->stream->max_time &&
2303 c->stream->max_time + c->start_time - cur_time < 0)
2304 /* We have timed out */
2305 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2309 ret = av_read_frame(c->fmt_in, &pkt);
2311 if (c->stream->feed) {
2312 /* if coming from feed, it means we reached the end of the
2313 ffm file, so must wait for more data */
2314 c->state = HTTPSTATE_WAIT_FEED;
2315 return 1; /* state changed */
2316 } else if (ret == AVERROR(EAGAIN)) {
2317 /* input not ready, come back later */
2320 if (c->stream->loop) {
2321 avformat_close_input(&c->fmt_in);
2322 if (open_input_stream(c, "") < 0)
2327 /* must send trailer now because eof or error */
2328 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2332 int source_index = pkt.stream_index;
2333 /* update first pts if needed */
2334 if (c->first_pts == AV_NOPTS_VALUE) {
2335 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2336 c->start_time = cur_time;
2338 /* send it to the appropriate stream */
2339 if (c->stream->feed) {
2340 /* if coming from a feed, select the right stream */
2341 if (c->switch_pending) {
2342 c->switch_pending = 0;
2343 for(i=0;i<c->stream->nb_streams;i++) {
2344 if (c->switch_feed_streams[i] == pkt.stream_index)
2345 if (pkt.flags & AV_PKT_FLAG_KEY)
2346 c->switch_feed_streams[i] = -1;
2347 if (c->switch_feed_streams[i] >= 0)
2348 c->switch_pending = 1;
2351 for(i=0;i<c->stream->nb_streams;i++) {
2352 if (c->stream->feed_streams[i] == pkt.stream_index) {
2353 AVStream *st = c->fmt_in->streams[source_index];
2354 pkt.stream_index = i;
2355 if (pkt.flags & AV_PKT_FLAG_KEY &&
2356 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2357 c->stream->nb_streams == 1))
2358 c->got_key_frame = 1;
2359 if (!c->stream->send_on_key || c->got_key_frame)
2364 AVCodecContext *codec;
2365 AVStream *ist, *ost;
2367 ist = c->fmt_in->streams[source_index];
2368 /* specific handling for RTP: we use several
2369 output stream (one for each RTP
2370 connection). XXX: need more abstract handling */
2371 if (c->is_packetized) {
2372 /* compute send time and duration */
2373 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2374 c->cur_pts -= c->first_pts;
2375 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2376 /* find RTP context */
2377 c->packet_stream_index = pkt.stream_index;
2378 ctx = c->rtp_ctx[c->packet_stream_index];
2380 av_free_packet(&pkt);
2383 codec = ctx->streams[0]->codec;
2384 /* only one stream per RTP connection */
2385 pkt.stream_index = 0;
2389 codec = ctx->streams[pkt.stream_index]->codec;
2392 if (c->is_packetized) {
2393 int max_packet_size;
2394 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2395 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2397 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2398 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2400 ret = avio_open_dyn_buf(&ctx->pb);
2403 /* XXX: potential leak */
2406 ost = ctx->streams[pkt.stream_index];
2408 ctx->pb->seekable = 0;
2409 if (pkt.dts != AV_NOPTS_VALUE)
2410 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2411 if (pkt.pts != AV_NOPTS_VALUE)
2412 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2413 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2414 if (av_write_frame(ctx, &pkt) < 0) {
2415 http_log("Error writing frame to output\n");
2416 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2419 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2420 c->cur_frame_bytes = len;
2421 c->buffer_ptr = c->pb_buffer;
2422 c->buffer_end = c->pb_buffer + len;
2424 codec->frame_number++;
2426 av_free_packet(&pkt);
2430 av_free_packet(&pkt);
2435 case HTTPSTATE_SEND_DATA_TRAILER:
2436 /* last packet test ? */
2437 if (c->last_packet_sent || c->is_packetized)
2440 /* prepare header */
2441 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2442 /* XXX: potential leak */
2445 c->fmt_ctx.pb->seekable = 0;
2446 av_write_trailer(ctx);
2447 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2448 c->buffer_ptr = c->pb_buffer;
2449 c->buffer_end = c->pb_buffer + len;
2451 c->last_packet_sent = 1;
2457 /* should convert the format at the same time */
2458 /* send data starting at c->buffer_ptr to the output connection
2459 (either UDP or TCP connection) */
2460 static int http_send_data(HTTPContext *c)
2465 if (c->buffer_ptr >= c->buffer_end) {
2466 ret = http_prepare_data(c);
2470 /* state change requested */
2473 if (c->is_packetized) {
2474 /* RTP data output */
2475 len = c->buffer_end - c->buffer_ptr;
2477 /* fail safe - should never happen */
2479 c->buffer_ptr = c->buffer_end;
2482 len = (c->buffer_ptr[0] << 24) |
2483 (c->buffer_ptr[1] << 16) |
2484 (c->buffer_ptr[2] << 8) |
2486 if (len > (c->buffer_end - c->buffer_ptr))
2488 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2489 /* nothing to send yet: we can wait */
2493 c->data_count += len;
2494 update_datarate(&c->datarate, c->data_count);
2496 c->stream->bytes_served += len;
2498 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2499 /* RTP packets are sent inside the RTSP TCP connection */
2501 int interleaved_index, size;
2503 HTTPContext *rtsp_c;
2506 /* if no RTSP connection left, error */
2509 /* if already sending something, then wait. */
2510 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2512 if (avio_open_dyn_buf(&pb) < 0)
2514 interleaved_index = c->packet_stream_index * 2;
2515 /* RTCP packets are sent at odd indexes */
2516 if (c->buffer_ptr[1] == 200)
2517 interleaved_index++;
2518 /* write RTSP TCP header */
2520 header[1] = interleaved_index;
2521 header[2] = len >> 8;
2523 avio_write(pb, header, 4);
2524 /* write RTP packet data */
2526 avio_write(pb, c->buffer_ptr, len);
2527 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2528 /* prepare asynchronous TCP sending */
2529 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2530 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2531 c->buffer_ptr += len;
2533 /* send everything we can NOW */
2534 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2535 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2537 rtsp_c->packet_buffer_ptr += len;
2538 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2539 /* if we could not send all the data, we will
2540 send it later, so a new state is needed to
2541 "lock" the RTSP TCP connection */
2542 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2545 /* all data has been sent */
2546 av_freep(&c->packet_buffer);
2548 /* send RTP packet directly in UDP */
2550 ffurl_write(c->rtp_handles[c->packet_stream_index],
2551 c->buffer_ptr, len);
2552 c->buffer_ptr += len;
2553 /* here we continue as we can send several packets per 10 ms slot */
2556 /* TCP data output */
2557 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2559 if (ff_neterrno() != AVERROR(EAGAIN) &&
2560 ff_neterrno() != AVERROR(EINTR))
2561 /* error : close connection */
2566 c->buffer_ptr += len;
2568 c->data_count += len;
2569 update_datarate(&c->datarate, c->data_count);
2571 c->stream->bytes_served += len;
2579 static int http_start_receive_data(HTTPContext *c)
2583 if (c->stream->feed_opened)
2586 /* Don't permit writing to this one */
2587 if (c->stream->readonly)
2591 fd = open(c->stream->feed_filename, O_RDWR);
2593 http_log("Error opening feeder file: %s\n", strerror(errno));
2598 if (c->stream->truncate) {
2599 /* truncate feed file */
2600 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2601 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2602 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2603 http_log("Error truncating feed file: %s\n", strerror(errno));
2607 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2608 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2613 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2614 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2615 lseek(fd, 0, SEEK_SET);
2617 /* init buffer input */
2618 c->buffer_ptr = c->buffer;
2619 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2620 c->stream->feed_opened = 1;
2621 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2625 static int http_receive_data(HTTPContext *c)
2628 int len, loop_run = 0;
2630 while (c->chunked_encoding && !c->chunk_size &&
2631 c->buffer_end > c->buffer_ptr) {
2632 /* read chunk header, if present */
2633 len = recv(c->fd, c->buffer_ptr, 1, 0);
2636 if (ff_neterrno() != AVERROR(EAGAIN) &&
2637 ff_neterrno() != AVERROR(EINTR))
2638 /* error : close connection */
2641 } else if (len == 0) {
2642 /* end of connection : close it */
2644 } else if (c->buffer_ptr - c->buffer >= 2 &&
2645 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2646 c->chunk_size = strtol(c->buffer, 0, 16);
2647 if (c->chunk_size == 0) // end of stream
2649 c->buffer_ptr = c->buffer;
2651 } else if (++loop_run > 10) {
2652 /* no chunk header, abort */
2659 if (c->buffer_end > c->buffer_ptr) {
2660 len = recv(c->fd, c->buffer_ptr,
2661 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2663 if (ff_neterrno() != AVERROR(EAGAIN) &&
2664 ff_neterrno() != AVERROR(EINTR))
2665 /* error : close connection */
2667 } else if (len == 0)
2668 /* end of connection : close it */
2671 c->chunk_size -= len;
2672 c->buffer_ptr += len;
2673 c->data_count += len;
2674 update_datarate(&c->datarate, c->data_count);
2678 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2679 if (c->buffer[0] != 'f' ||
2680 c->buffer[1] != 'm') {
2681 http_log("Feed stream has become desynchronized -- disconnecting\n");
2686 if (c->buffer_ptr >= c->buffer_end) {
2687 FFStream *feed = c->stream;
2688 /* a packet has been received : write it in the store, except
2690 if (c->data_count > FFM_PACKET_SIZE) {
2691 /* XXX: use llseek or url_seek */
2692 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2693 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2694 http_log("Error writing to feed file: %s\n", strerror(errno));
2698 feed->feed_write_index += FFM_PACKET_SIZE;
2699 /* update file size */
2700 if (feed->feed_write_index > c->stream->feed_size)
2701 feed->feed_size = feed->feed_write_index;
2703 /* handle wrap around if max file size reached */
2704 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2705 feed->feed_write_index = FFM_PACKET_SIZE;
2708 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2709 http_log("Error writing index to feed file: %s\n", strerror(errno));
2713 /* wake up any waiting connections */
2714 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2715 if (c1->state == HTTPSTATE_WAIT_FEED &&
2716 c1->stream->feed == c->stream->feed)
2717 c1->state = HTTPSTATE_SEND_DATA;
2720 /* We have a header in our hands that contains useful data */
2721 AVFormatContext *s = avformat_alloc_context();
2723 AVInputFormat *fmt_in;
2729 /* use feed output format name to find corresponding input format */
2730 fmt_in = av_find_input_format(feed->fmt->name);
2734 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2735 0, NULL, NULL, NULL, NULL);
2739 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2744 /* Now we have the actual streams */
2745 if (s->nb_streams != feed->nb_streams) {
2746 avformat_close_input(&s);
2748 http_log("Feed '%s' stream number does not match registered feed\n",
2749 c->stream->feed_filename);
2753 for (i = 0; i < s->nb_streams; i++) {
2754 AVStream *fst = feed->streams[i];
2755 AVStream *st = s->streams[i];
2756 avcodec_copy_context(fst->codec, st->codec);
2759 avformat_close_input(&s);
2762 c->buffer_ptr = c->buffer;
2767 c->stream->feed_opened = 0;
2769 /* wake up any waiting connections to stop waiting for feed */
2770 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2771 if (c1->state == HTTPSTATE_WAIT_FEED &&
2772 c1->stream->feed == c->stream->feed)
2773 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2778 /********************************************************************/
2781 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2788 switch(error_number) {
2789 case RTSP_STATUS_OK:
2792 case RTSP_STATUS_METHOD:
2793 str = "Method Not Allowed";
2795 case RTSP_STATUS_BANDWIDTH:
2796 str = "Not Enough Bandwidth";
2798 case RTSP_STATUS_SESSION:
2799 str = "Session Not Found";
2801 case RTSP_STATUS_STATE:
2802 str = "Method Not Valid in This State";
2804 case RTSP_STATUS_AGGREGATE:
2805 str = "Aggregate operation not allowed";
2807 case RTSP_STATUS_ONLY_AGGREGATE:
2808 str = "Only aggregate operation allowed";
2810 case RTSP_STATUS_TRANSPORT:
2811 str = "Unsupported transport";
2813 case RTSP_STATUS_INTERNAL:
2814 str = "Internal Server Error";
2816 case RTSP_STATUS_SERVICE:
2817 str = "Service Unavailable";
2819 case RTSP_STATUS_VERSION:
2820 str = "RTSP Version not supported";
2823 str = "Unknown Error";
2827 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2828 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2830 /* output GMT time */
2833 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2834 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2837 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2839 rtsp_reply_header(c, error_number);
2840 avio_printf(c->pb, "\r\n");
2843 static int rtsp_parse_request(HTTPContext *c)
2845 const char *p, *p1, *p2;
2851 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2853 c->buffer_ptr[0] = '\0';
2856 get_word(cmd, sizeof(cmd), &p);
2857 get_word(url, sizeof(url), &p);
2858 get_word(protocol, sizeof(protocol), &p);
2860 av_strlcpy(c->method, cmd, sizeof(c->method));
2861 av_strlcpy(c->url, url, sizeof(c->url));
2862 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2864 if (avio_open_dyn_buf(&c->pb) < 0) {
2865 /* XXX: cannot do more */
2866 c->pb = NULL; /* safety */
2870 /* check version name */
2871 if (strcmp(protocol, "RTSP/1.0") != 0) {
2872 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2876 /* parse each header line */
2877 /* skip to next line */
2878 while (*p != '\n' && *p != '\0')
2882 while (*p != '\0') {
2883 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2887 if (p2 > p && p2[-1] == '\r')
2889 /* skip empty line */
2893 if (len > sizeof(line) - 1)
2894 len = sizeof(line) - 1;
2895 memcpy(line, p, len);
2897 ff_rtsp_parse_line(header, line, NULL, NULL);
2901 /* handle sequence number */
2902 c->seq = header->seq;
2904 if (!strcmp(cmd, "DESCRIBE"))
2905 rtsp_cmd_describe(c, url);
2906 else if (!strcmp(cmd, "OPTIONS"))
2907 rtsp_cmd_options(c, url);
2908 else if (!strcmp(cmd, "SETUP"))
2909 rtsp_cmd_setup(c, url, header);
2910 else if (!strcmp(cmd, "PLAY"))
2911 rtsp_cmd_play(c, url, header);
2912 else if (!strcmp(cmd, "PAUSE"))
2913 rtsp_cmd_pause(c, url, header);
2914 else if (!strcmp(cmd, "TEARDOWN"))
2915 rtsp_cmd_teardown(c, url, header);
2917 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2920 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2921 c->pb = NULL; /* safety */
2923 /* XXX: cannot do more */
2926 c->buffer_ptr = c->pb_buffer;
2927 c->buffer_end = c->pb_buffer + len;
2928 c->state = RTSPSTATE_SEND_REPLY;
2932 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2933 struct in_addr my_ip)
2935 AVFormatContext *avc;
2936 AVStream *avs = NULL;
2939 avc = avformat_alloc_context();
2943 av_dict_set(&avc->metadata, "title",
2944 stream->title[0] ? stream->title : "No Title", 0);
2945 avc->nb_streams = stream->nb_streams;
2946 if (stream->is_multicast) {
2947 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2948 inet_ntoa(stream->multicast_ip),
2949 stream->multicast_port, stream->multicast_ttl);
2951 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2954 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2955 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2957 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2958 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2961 for(i = 0; i < stream->nb_streams; i++) {
2962 avc->streams[i] = &avs[i];
2963 avc->streams[i]->codec = stream->streams[i]->codec;
2965 *pbuffer = av_mallocz(2048);
2966 av_sdp_create(&avc, 1, *pbuffer, 2048);
2969 av_free(avc->streams);
2970 av_dict_free(&avc->metadata);
2974 return strlen(*pbuffer);
2977 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2979 // rtsp_reply_header(c, RTSP_STATUS_OK);
2980 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2981 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2982 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2983 avio_printf(c->pb, "\r\n");
2986 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2994 struct sockaddr_in my_addr;
2996 /* find which url is asked */
2997 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3002 for(stream = first_stream; stream != NULL; stream = stream->next) {
3003 if (!stream->is_feed &&
3004 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
3005 !strcmp(path, stream->filename)) {
3009 /* no stream found */
3010 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3014 /* prepare the media description in sdp format */
3016 /* get the host IP */
3017 len = sizeof(my_addr);
3018 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3019 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
3020 if (content_length < 0) {
3021 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3024 rtsp_reply_header(c, RTSP_STATUS_OK);
3025 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3026 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3027 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3028 avio_printf(c->pb, "\r\n");
3029 avio_write(c->pb, content, content_length);
3033 static HTTPContext *find_rtp_session(const char *session_id)
3037 if (session_id[0] == '\0')
3040 for(c = first_http_ctx; c != NULL; c = c->next) {
3041 if (!strcmp(c->session_id, session_id))
3047 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3049 RTSPTransportField *th;
3052 for(i=0;i<h->nb_transports;i++) {
3053 th = &h->transports[i];
3054 if (th->lower_transport == lower_transport)
3060 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3061 RTSPMessageHeader *h)
3064 int stream_index, rtp_port, rtcp_port;
3069 RTSPTransportField *th;
3070 struct sockaddr_in dest_addr;
3071 RTSPActionServerSetup setup;
3073 /* find which url is asked */
3074 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3079 /* now check each stream */
3080 for(stream = first_stream; stream != NULL; stream = stream->next) {
3081 if (!stream->is_feed &&
3082 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3083 /* accept aggregate filenames only if single stream */
3084 if (!strcmp(path, stream->filename)) {
3085 if (stream->nb_streams != 1) {
3086 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3093 for(stream_index = 0; stream_index < stream->nb_streams;
3095 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3096 stream->filename, stream_index);
3097 if (!strcmp(path, buf))
3102 /* no stream found */
3103 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3107 /* generate session id if needed */
3108 if (h->session_id[0] == '\0')
3109 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3110 av_lfg_get(&random_state), av_lfg_get(&random_state));
3112 /* find rtp session, and create it if none found */
3113 rtp_c = find_rtp_session(h->session_id);
3115 /* always prefer UDP */
3116 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3118 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3120 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3125 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3126 th->lower_transport);
3128 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3132 /* open input stream */
3133 if (open_input_stream(rtp_c, "") < 0) {
3134 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3139 /* test if stream is OK (test needed because several SETUP needs
3140 to be done for a given file) */
3141 if (rtp_c->stream != stream) {
3142 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3146 /* test if stream is already set up */
3147 if (rtp_c->rtp_ctx[stream_index]) {
3148 rtsp_reply_error(c, RTSP_STATUS_STATE);
3152 /* check transport */
3153 th = find_transport(h, rtp_c->rtp_protocol);
3154 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3155 th->client_port_min <= 0)) {
3156 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3160 /* setup default options */
3161 setup.transport_option[0] = '\0';
3162 dest_addr = rtp_c->from_addr;
3163 dest_addr.sin_port = htons(th->client_port_min);
3166 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3167 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3171 /* now everything is OK, so we can send the connection parameters */
3172 rtsp_reply_header(c, RTSP_STATUS_OK);
3174 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3176 switch(rtp_c->rtp_protocol) {
3177 case RTSP_LOWER_TRANSPORT_UDP:
3178 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3179 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3180 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3181 "client_port=%d-%d;server_port=%d-%d",
3182 th->client_port_min, th->client_port_max,
3183 rtp_port, rtcp_port);
3185 case RTSP_LOWER_TRANSPORT_TCP:
3186 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3187 stream_index * 2, stream_index * 2 + 1);
3192 if (setup.transport_option[0] != '\0')
3193 avio_printf(c->pb, ";%s", setup.transport_option);
3194 avio_printf(c->pb, "\r\n");
3197 avio_printf(c->pb, "\r\n");
3201 /* find an rtp connection by using the session ID. Check consistency
3203 static HTTPContext *find_rtp_session_with_url(const char *url,
3204 const char *session_id)
3212 rtp_c = find_rtp_session(session_id);
3216 /* find which url is asked */
3217 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3221 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3222 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3223 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3224 rtp_c->stream->filename, s);
3225 if(!strncmp(path, buf, sizeof(buf))) {
3226 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3231 if (len > 0 && path[len - 1] == '/' &&
3232 !strncmp(path, rtp_c->stream->filename, len - 1))
3237 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3241 rtp_c = find_rtp_session_with_url(url, h->session_id);
3243 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3247 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3248 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3249 rtp_c->state != HTTPSTATE_READY) {
3250 rtsp_reply_error(c, RTSP_STATUS_STATE);
3254 rtp_c->state = HTTPSTATE_SEND_DATA;
3256 /* now everything is OK, so we can send the connection parameters */
3257 rtsp_reply_header(c, RTSP_STATUS_OK);
3259 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3260 avio_printf(c->pb, "\r\n");
3263 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3267 rtp_c = find_rtp_session_with_url(url, h->session_id);
3269 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3273 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3274 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3275 rtsp_reply_error(c, RTSP_STATUS_STATE);
3279 rtp_c->state = HTTPSTATE_READY;
3280 rtp_c->first_pts = AV_NOPTS_VALUE;
3281 /* now everything is OK, so we can send the connection parameters */
3282 rtsp_reply_header(c, RTSP_STATUS_OK);
3284 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3285 avio_printf(c->pb, "\r\n");
3288 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3292 rtp_c = find_rtp_session_with_url(url, h->session_id);
3294 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3298 /* now everything is OK, so we can send the connection parameters */
3299 rtsp_reply_header(c, RTSP_STATUS_OK);
3301 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3302 avio_printf(c->pb, "\r\n");
3304 /* abort the session */
3305 close_connection(rtp_c);
3309 /********************************************************************/
3312 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3313 FFStream *stream, const char *session_id,
3314 enum RTSPLowerTransport rtp_protocol)
3316 HTTPContext *c = NULL;
3317 const char *proto_str;
3319 /* XXX: should output a warning page when coming
3320 close to the connection limit */
3321 if (nb_connections >= nb_max_connections)
3324 /* add a new connection */
3325 c = av_mallocz(sizeof(HTTPContext));
3330 c->poll_entry = NULL;
3331 c->from_addr = *from_addr;
3332 c->buffer_size = IOBUFFER_INIT_SIZE;
3333 c->buffer = av_malloc(c->buffer_size);
3338 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3339 c->state = HTTPSTATE_READY;
3340 c->is_packetized = 1;
3341 c->rtp_protocol = rtp_protocol;
3343 /* protocol is shown in statistics */
3344 switch(c->rtp_protocol) {
3345 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3346 proto_str = "MCAST";
3348 case RTSP_LOWER_TRANSPORT_UDP:
3351 case RTSP_LOWER_TRANSPORT_TCP:
3358 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3359 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3361 current_bandwidth += stream->bandwidth;
3363 c->next = first_http_ctx;
3375 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3376 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3378 static int rtp_new_av_stream(HTTPContext *c,
3379 int stream_index, struct sockaddr_in *dest_addr,
3380 HTTPContext *rtsp_c)
3382 AVFormatContext *ctx;
3385 URLContext *h = NULL;
3387 int max_packet_size;
3389 /* now we can open the relevant output stream */
3390 ctx = avformat_alloc_context();
3393 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3395 st = av_mallocz(sizeof(AVStream));
3398 ctx->nb_streams = 1;
3399 ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams);
3402 ctx->streams[0] = st;
3404 if (!c->stream->feed ||
3405 c->stream->feed == c->stream)
3406 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3409 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3411 st->priv_data = NULL;
3413 /* build destination RTP address */
3414 ipaddr = inet_ntoa(dest_addr->sin_addr);
3416 switch(c->rtp_protocol) {
3417 case RTSP_LOWER_TRANSPORT_UDP:
3418 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3421 /* XXX: also pass as parameter to function ? */
3422 if (c->stream->is_multicast) {
3424 ttl = c->stream->multicast_ttl;
3427 snprintf(ctx->filename, sizeof(ctx->filename),
3428 "rtp://%s:%d?multicast=1&ttl=%d",
3429 ipaddr, ntohs(dest_addr->sin_port), ttl);
3431 snprintf(ctx->filename, sizeof(ctx->filename),
3432 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3435 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3437 c->rtp_handles[stream_index] = h;
3438 max_packet_size = h->max_packet_size;
3440 case RTSP_LOWER_TRANSPORT_TCP:
3443 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3449 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3450 ipaddr, ntohs(dest_addr->sin_port),
3451 c->stream->filename, stream_index, c->protocol);
3453 /* normally, no packets should be output here, but the packet size may be checked */
3454 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3455 /* XXX: close stream */
3458 if (avformat_write_header(ctx, NULL) < 0) {
3465 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3468 c->rtp_ctx[stream_index] = ctx;
3472 /********************************************************************/
3473 /* avserver initialization */
3475 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3479 fst = av_mallocz(sizeof(AVStream));
3483 fst->codec = avcodec_alloc_context3(NULL);
3484 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3485 if (codec->extradata_size) {
3486 fst->codec->extradata = av_malloc(codec->extradata_size);
3487 memcpy(fst->codec->extradata, codec->extradata,
3488 codec->extradata_size);
3491 /* live streams must use the actual feed's codec since it may be
3492 * updated later to carry extradata needed by the streams.
3496 fst->priv_data = av_mallocz(sizeof(FeedData));
3497 fst->index = stream->nb_streams;
3498 avpriv_set_pts_info(fst, 33, 1, 90000);
3499 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3500 stream->streams[stream->nb_streams++] = fst;
3504 /* return the stream number in the feed */
3505 static int add_av_stream(FFStream *feed, AVStream *st)
3508 AVCodecContext *av, *av1;
3512 for(i=0;i<feed->nb_streams;i++) {
3513 st = feed->streams[i];
3515 if (av1->codec_id == av->codec_id &&
3516 av1->codec_type == av->codec_type &&
3517 av1->bit_rate == av->bit_rate) {
3519 switch(av->codec_type) {
3520 case AVMEDIA_TYPE_AUDIO:
3521 if (av1->channels == av->channels &&
3522 av1->sample_rate == av->sample_rate)
3525 case AVMEDIA_TYPE_VIDEO:
3526 if (av1->width == av->width &&
3527 av1->height == av->height &&
3528 av1->time_base.den == av->time_base.den &&
3529 av1->time_base.num == av->time_base.num &&
3530 av1->gop_size == av->gop_size)
3539 fst = add_av_stream1(feed, av, 0);
3542 return feed->nb_streams - 1;
3545 static void remove_stream(FFStream *stream)
3549 while (*ps != NULL) {
3557 /* specific mpeg4 handling : we extract the raw parameters */
3558 static void extract_mpeg4_header(AVFormatContext *infile)
3560 int mpeg4_count, i, size;
3565 infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE;
3568 for(i=0;i<infile->nb_streams;i++) {
3569 st = infile->streams[i];
3570 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3571 st->codec->extradata_size == 0) {
3578 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3579 while (mpeg4_count > 0) {
3580 if (av_read_frame(infile, &pkt) < 0)
3582 st = infile->streams[pkt.stream_index];
3583 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3584 st->codec->extradata_size == 0) {
3585 av_freep(&st->codec->extradata);
3586 /* fill extradata with the header */
3587 /* XXX: we make hard suppositions here ! */
3589 while (p < pkt.data + pkt.size - 4) {
3590 /* stop when vop header is found */
3591 if (p[0] == 0x00 && p[1] == 0x00 &&
3592 p[2] == 0x01 && p[3] == 0xb6) {
3593 size = p - pkt.data;
3594 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3595 st->codec->extradata = av_malloc(size);
3596 st->codec->extradata_size = size;
3597 memcpy(st->codec->extradata, pkt.data, size);
3604 av_free_packet(&pkt);
3608 /* compute the needed AVStream for each file */
3609 static void build_file_streams(void)
3611 FFStream *stream, *stream_next;
3614 /* gather all streams */
3615 for(stream = first_stream; stream != NULL; stream = stream_next) {
3616 AVFormatContext *infile = NULL;
3617 stream_next = stream->next;
3618 if (stream->stream_type == STREAM_TYPE_LIVE &&
3620 /* the stream comes from a file */
3621 /* try to open the file */
3623 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3624 /* specific case : if transport stream output to RTP,
3625 we use a raw transport stream reader */
3626 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3629 http_log("Opening file '%s'\n", stream->feed_filename);
3630 if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) {
3631 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3632 /* remove stream (no need to spend more time on it) */
3634 remove_stream(stream);
3636 /* find all the AVStreams inside and reference them in
3638 if (avformat_find_stream_info(infile, NULL) < 0) {
3639 http_log("Could not find codec parameters from '%s'\n",
3640 stream->feed_filename);
3641 avformat_close_input(&infile);
3644 extract_mpeg4_header(infile);
3646 for(i=0;i<infile->nb_streams;i++)
3647 add_av_stream1(stream, infile->streams[i]->codec, 1);
3649 avformat_close_input(&infile);
3655 /* compute the needed AVStream for each feed */
3656 static void build_feed_streams(void)
3658 FFStream *stream, *feed;
3661 /* gather all streams */
3662 for(stream = first_stream; stream != NULL; stream = stream->next) {
3663 feed = stream->feed;
3665 if (stream->is_feed) {
3666 for(i=0;i<stream->nb_streams;i++)
3667 stream->feed_streams[i] = i;
3669 /* we handle a stream coming from a feed */
3670 for(i=0;i<stream->nb_streams;i++)
3671 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3676 /* create feed files if needed */
3677 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3680 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3681 /* See if it matches */
3682 AVFormatContext *s = NULL;
3685 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {
3686 /* Now see if it matches */
3687 if (s->nb_streams == feed->nb_streams) {
3689 for(i=0;i<s->nb_streams;i++) {
3691 sf = feed->streams[i];
3694 if (sf->index != ss->index ||
3696 http_log("Index & Id do not match for stream %d (%s)\n",
3697 i, feed->feed_filename);
3700 AVCodecContext *ccf, *ccs;
3704 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3706 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3707 http_log("Codecs do not match for stream %d\n", i);
3709 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3710 http_log("Codec bitrates do not match for stream %d\n", i);
3712 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3713 if (CHECK_CODEC(time_base.den) ||
3714 CHECK_CODEC(time_base.num) ||
3715 CHECK_CODEC(width) ||
3716 CHECK_CODEC(height)) {
3717 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3720 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3721 if (CHECK_CODEC(sample_rate) ||
3722 CHECK_CODEC(channels) ||
3723 CHECK_CODEC(frame_size)) {
3724 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3728 http_log("Unknown codec type\n");
3736 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3737 feed->feed_filename, s->nb_streams, feed->nb_streams);
3739 avformat_close_input(&s);
3741 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3742 feed->feed_filename);
3745 if (feed->readonly) {
3746 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3747 feed->feed_filename);
3750 unlink(feed->feed_filename);
3753 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3754 AVFormatContext s1 = {0}, *s = &s1;
3756 if (feed->readonly) {
3757 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3758 feed->feed_filename);
3762 /* only write the header of the ffm file */
3763 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3764 http_log("Could not open output feed file '%s'\n",
3765 feed->feed_filename);
3768 s->oformat = feed->fmt;
3769 s->nb_streams = feed->nb_streams;
3770 s->streams = feed->streams;
3771 if (avformat_write_header(s, NULL) < 0) {
3772 http_log("Container doesn't supports the required parameters\n");
3775 /* XXX: need better api */
3776 av_freep(&s->priv_data);
3779 /* get feed size and write index */
3780 fd = open(feed->feed_filename, O_RDONLY);
3782 http_log("Could not open output feed file '%s'\n",
3783 feed->feed_filename);
3787 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3788 feed->feed_size = lseek(fd, 0, SEEK_END);
3789 /* ensure that we do not wrap before the end of file */
3790 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3791 feed->feed_max_size = feed->feed_size;
3797 /* compute the bandwidth used by each stream */
3798 static void compute_bandwidth(void)
3804 for(stream = first_stream; stream != NULL; stream = stream->next) {
3806 for(i=0;i<stream->nb_streams;i++) {
3807 AVStream *st = stream->streams[i];
3808 switch(st->codec->codec_type) {
3809 case AVMEDIA_TYPE_AUDIO:
3810 case AVMEDIA_TYPE_VIDEO:
3811 bandwidth += st->codec->bit_rate;
3817 stream->bandwidth = (bandwidth + 999) / 1000;
3821 /* add a codec and set the default parameters */
3822 static void add_codec(FFStream *stream, AVCodecContext *av)
3826 /* compute default parameters */
3827 switch(av->codec_type) {
3828 case AVMEDIA_TYPE_AUDIO:
3829 if (av->bit_rate == 0)
3830 av->bit_rate = 64000;
3831 if (av->sample_rate == 0)
3832 av->sample_rate = 22050;
3833 if (av->channels == 0)
3836 case AVMEDIA_TYPE_VIDEO:
3837 if (av->bit_rate == 0)
3838 av->bit_rate = 64000;
3839 if (av->time_base.num == 0){
3840 av->time_base.den = 5;
3841 av->time_base.num = 1;
3843 if (av->width == 0 || av->height == 0) {
3847 /* Bitrate tolerance is less for streaming */
3848 if (av->bit_rate_tolerance == 0)
3849 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3850 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3855 if (av->max_qdiff == 0)
3857 av->qcompress = 0.5;
3860 if (!av->nsse_weight)
3861 av->nsse_weight = 8;
3863 av->frame_skip_cmp = FF_CMP_DCTMAX;
3865 av->me_method = ME_EPZS;
3866 av->rc_buffer_aggressivity = 1.0;
3869 av->rc_eq = "tex^qComp";
3870 if (!av->i_quant_factor)
3871 av->i_quant_factor = -0.8;
3872 if (!av->b_quant_factor)
3873 av->b_quant_factor = 1.25;
3874 if (!av->b_quant_offset)
3875 av->b_quant_offset = 1.25;
3876 if (!av->rc_max_rate)
3877 av->rc_max_rate = av->bit_rate * 2;
3879 if (av->rc_max_rate && !av->rc_buffer_size) {
3880 av->rc_buffer_size = av->rc_max_rate;
3889 st = av_mallocz(sizeof(AVStream));
3892 st->codec = avcodec_alloc_context3(NULL);
3893 stream->streams[stream->nb_streams++] = st;
3894 memcpy(st->codec, av, sizeof(AVCodecContext));
3897 static enum AVCodecID opt_audio_codec(const char *arg)
3899 AVCodec *p= avcodec_find_encoder_by_name(arg);
3901 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3902 return AV_CODEC_ID_NONE;
3907 static enum AVCodecID opt_video_codec(const char *arg)
3909 AVCodec *p= avcodec_find_encoder_by_name(arg);
3911 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3912 return AV_CODEC_ID_NONE;
3917 /* simplistic plugin support */
3920 static void load_module(const char *filename)
3923 void (*init_func)(void);
3924 dll = dlopen(filename, RTLD_NOW);
3926 fprintf(stderr, "Could not load module '%s' - %s\n",
3927 filename, dlerror());
3931 init_func = dlsym(dll, "avserver_module_init");
3934 "%s: init function 'avserver_module_init()' not found\n",
3943 static int avserver_opt_default(const char *opt, const char *arg,
3944 AVCodecContext *avctx, int type)
3947 const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);
3949 ret = av_opt_set(avctx, opt, arg, 0);
3953 static int avserver_opt_preset(const char *arg,
3954 AVCodecContext *avctx, int type,
3955 enum AVCodecID *audio_id, enum AVCodecID *video_id)
3958 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3960 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3962 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3963 codec ? codec->name : NULL))) {
3964 fprintf(stderr, "File for preset '%s' not found\n", arg);
3969 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3970 if(line[0] == '#' && !e)
3972 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3974 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
3978 if(!strcmp(tmp, "acodec")){
3979 *audio_id = opt_audio_codec(tmp2);
3980 }else if(!strcmp(tmp, "vcodec")){
3981 *video_id = opt_video_codec(tmp2);
3982 }else if(!strcmp(tmp, "scodec")){
3983 /* opt_subtitle_codec(tmp2); */
3984 }else if(avserver_opt_default(tmp, tmp2, avctx, type) < 0){
3985 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
3996 static AVOutputFormat *avserver_guess_format(const char *short_name, const char *filename,
3997 const char *mime_type)
3999 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
4002 AVOutputFormat *stream_fmt;
4003 char stream_format_name[64];
4005 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
4006 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
4015 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
4019 fprintf(stderr, "%s:%d: ", filename, line_num);
4020 vfprintf(stderr, fmt, vl);
4026 static int parse_ffconfig(const char *filename)
4033 int val, errors, line_num;
4034 FFStream **last_stream, *stream, *redirect;
4035 FFStream **last_feed, *feed, *s;
4036 AVCodecContext audio_enc, video_enc;
4037 enum AVCodecID audio_id, video_id;
4039 f = fopen(filename, "r");
4047 first_stream = NULL;
4048 last_stream = &first_stream;
4050 last_feed = &first_feed;
4054 audio_id = AV_CODEC_ID_NONE;
4055 video_id = AV_CODEC_ID_NONE;
4057 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4059 if (fgets(line, sizeof(line), f) == NULL)
4065 if (*p == '\0' || *p == '#')
4068 get_arg(cmd, sizeof(cmd), &p);
4070 if (!av_strcasecmp(cmd, "Port")) {
4071 get_arg(arg, sizeof(arg), &p);
4073 if (val < 1 || val > 65536) {
4074 ERROR("Invalid_port: %s\n", arg);
4076 my_http_addr.sin_port = htons(val);
4077 } else if (!av_strcasecmp(cmd, "BindAddress")) {
4078 get_arg(arg, sizeof(arg), &p);
4079 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4080 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4082 } else if (!av_strcasecmp(cmd, "RTSPPort")) {
4083 get_arg(arg, sizeof(arg), &p);
4085 if (val < 1 || val > 65536) {
4086 ERROR("%s:%d: Invalid port: %s\n", arg);
4088 my_rtsp_addr.sin_port = htons(atoi(arg));
4089 } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
4090 get_arg(arg, sizeof(arg), &p);
4091 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4092 ERROR("Invalid host/IP address: %s\n", arg);
4094 } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
4095 get_arg(arg, sizeof(arg), &p);
4097 if (val < 1 || val > 65536) {
4098 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4100 nb_max_http_connections = val;
4101 } else if (!av_strcasecmp(cmd, "MaxClients")) {
4102 get_arg(arg, sizeof(arg), &p);
4104 if (val < 1 || val > nb_max_http_connections) {
4105 ERROR("Invalid MaxClients: %s\n", arg);
4107 nb_max_connections = val;
4109 } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
4111 get_arg(arg, sizeof(arg), &p);
4113 if (llval < 10 || llval > 10000000) {
4114 ERROR("Invalid MaxBandwidth: %s\n", arg);
4116 max_bandwidth = llval;
4117 } else if (!av_strcasecmp(cmd, "CustomLog")) {
4118 if (!avserver_debug)
4119 get_arg(logfilename, sizeof(logfilename), &p);
4120 } else if (!av_strcasecmp(cmd, "<Feed")) {
4121 /*********************************************/
4122 /* Feed related options */
4124 if (stream || feed) {
4125 ERROR("Already in a tag\n");
4127 feed = av_mallocz(sizeof(FFStream));
4128 get_arg(feed->filename, sizeof(feed->filename), &p);
4129 q = strrchr(feed->filename, '>');
4133 for (s = first_feed; s; s = s->next) {
4134 if (!strcmp(feed->filename, s->filename)) {
4135 ERROR("Feed '%s' already registered\n", s->filename);
4139 feed->fmt = av_guess_format("ffm", NULL, NULL);
4140 /* defaut feed file */
4141 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4142 "/tmp/%s.ffm", feed->filename);
4143 feed->feed_max_size = 5 * 1024 * 1024;
4145 feed->feed = feed; /* self feeding :-) */
4147 /* add in stream list */
4148 *last_stream = feed;
4149 last_stream = &feed->next;
4150 /* add in feed list */
4152 last_feed = &feed->next_feed;
4154 } else if (!av_strcasecmp(cmd, "Launch")) {
4158 feed->child_argv = av_mallocz(64 * sizeof(char *));
4160 for (i = 0; i < 62; i++) {
4161 get_arg(arg, sizeof(arg), &p);
4165 feed->child_argv[i] = av_strdup(arg);
4168 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4170 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4172 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4173 inet_ntoa(my_http_addr.sin_addr),
4174 ntohs(my_http_addr.sin_port), feed->filename);
4176 } else if (!av_strcasecmp(cmd, "ReadOnlyFile")) {
4178 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4180 } else if (stream) {
4181 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4183 } else if (!av_strcasecmp(cmd, "File")) {
4185 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4187 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4188 } else if (!av_strcasecmp(cmd, "Truncate")) {
4190 get_arg(arg, sizeof(arg), &p);
4191 feed->truncate = strtod(arg, NULL);
4193 } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
4198 get_arg(arg, sizeof(arg), &p);
4200 fsize = strtod(p1, &p1);
4201 switch(toupper(*p1)) {
4206 fsize *= 1024 * 1024;
4209 fsize *= 1024 * 1024 * 1024;
4212 feed->feed_max_size = (int64_t)fsize;
4213 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4214 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4217 } else if (!av_strcasecmp(cmd, "</Feed>")) {
4219 ERROR("No corresponding <Feed> for </Feed>\n");
4222 } else if (!av_strcasecmp(cmd, "<Stream")) {
4223 /*********************************************/
4224 /* Stream related options */
4226 if (stream || feed) {
4227 ERROR("Already in a tag\n");
4230 stream = av_mallocz(sizeof(FFStream));
4231 get_arg(stream->filename, sizeof(stream->filename), &p);
4232 q = strrchr(stream->filename, '>');
4236 for (s = first_stream; s; s = s->next) {
4237 if (!strcmp(stream->filename, s->filename)) {
4238 ERROR("Stream '%s' already registered\n", s->filename);
4242 stream->fmt = avserver_guess_format(NULL, stream->filename, NULL);
4243 avcodec_get_context_defaults3(&video_enc, NULL);
4244 avcodec_get_context_defaults3(&audio_enc, NULL);
4245 audio_id = AV_CODEC_ID_NONE;
4246 video_id = AV_CODEC_ID_NONE;
4248 audio_id = stream->fmt->audio_codec;
4249 video_id = stream->fmt->video_codec;
4252 *last_stream = stream;
4253 last_stream = &stream->next;
4255 } else if (!av_strcasecmp(cmd, "Feed")) {
4256 get_arg(arg, sizeof(arg), &p);
4261 while (sfeed != NULL) {
4262 if (!strcmp(sfeed->filename, arg))
4264 sfeed = sfeed->next_feed;
4267 ERROR("feed '%s' not defined\n", arg);
4269 stream->feed = sfeed;
4271 } else if (!av_strcasecmp(cmd, "Format")) {
4272 get_arg(arg, sizeof(arg), &p);
4274 if (!strcmp(arg, "status")) {
4275 stream->stream_type = STREAM_TYPE_STATUS;
4278 stream->stream_type = STREAM_TYPE_LIVE;
4279 /* jpeg cannot be used here, so use single frame jpeg */
4280 if (!strcmp(arg, "jpeg"))
4281 strcpy(arg, "mjpeg");
4282 stream->fmt = avserver_guess_format(arg, NULL, NULL);
4284 ERROR("Unknown Format: %s\n", arg);
4288 audio_id = stream->fmt->audio_codec;
4289 video_id = stream->fmt->video_codec;
4292 } else if (!av_strcasecmp(cmd, "InputFormat")) {
4293 get_arg(arg, sizeof(arg), &p);
4295 stream->ifmt = av_find_input_format(arg);
4296 if (!stream->ifmt) {
4297 ERROR("Unknown input format: %s\n", arg);
4300 } else if (!av_strcasecmp(cmd, "FaviconURL")) {
4301 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4302 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4304 ERROR("FaviconURL only permitted for status streams\n");
4306 } else if (!av_strcasecmp(cmd, "Author")) {
4308 get_arg(stream->author, sizeof(stream->author), &p);
4309 } else if (!av_strcasecmp(cmd, "Comment")) {
4311 get_arg(stream->comment, sizeof(stream->comment), &p);
4312 } else if (!av_strcasecmp(cmd, "Copyright")) {
4314 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4315 } else if (!av_strcasecmp(cmd, "Title")) {
4317 get_arg(stream->title, sizeof(stream->title), &p);
4318 } else if (!av_strcasecmp(cmd, "Preroll")) {
4319 get_arg(arg, sizeof(arg), &p);
4321 stream->prebuffer = atof(arg) * 1000;
4322 } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
4324 stream->send_on_key = 1;
4325 } else if (!av_strcasecmp(cmd, "AudioCodec")) {
4326 get_arg(arg, sizeof(arg), &p);
4327 audio_id = opt_audio_codec(arg);
4328 if (audio_id == AV_CODEC_ID_NONE) {
4329 ERROR("Unknown AudioCodec: %s\n", arg);
4331 } else if (!av_strcasecmp(cmd, "VideoCodec")) {
4332 get_arg(arg, sizeof(arg), &p);
4333 video_id = opt_video_codec(arg);
4334 if (video_id == AV_CODEC_ID_NONE) {
4335 ERROR("Unknown VideoCodec: %s\n", arg);
4337 } else if (!av_strcasecmp(cmd, "MaxTime")) {
4338 get_arg(arg, sizeof(arg), &p);
4340 stream->max_time = atof(arg) * 1000;
4341 } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
4342 get_arg(arg, sizeof(arg), &p);
4344 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4345 } else if (!av_strcasecmp(cmd, "AudioChannels")) {
4346 get_arg(arg, sizeof(arg), &p);
4348 audio_enc.channels = atoi(arg);
4349 } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
4350 get_arg(arg, sizeof(arg), &p);
4352 audio_enc.sample_rate = atoi(arg);
4353 } else if (!av_strcasecmp(cmd, "AudioQuality")) {
4354 get_arg(arg, sizeof(arg), &p);
4356 // audio_enc.quality = atof(arg) * 1000;
4358 } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
4360 int minrate, maxrate;
4362 get_arg(arg, sizeof(arg), &p);
4364 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4365 video_enc.rc_min_rate = minrate * 1000;
4366 video_enc.rc_max_rate = maxrate * 1000;
4368 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4371 } else if (!av_strcasecmp(cmd, "Debug")) {
4373 get_arg(arg, sizeof(arg), &p);
4374 video_enc.debug = strtol(arg,0,0);
4376 } else if (!av_strcasecmp(cmd, "Strict")) {
4378 get_arg(arg, sizeof(arg), &p);
4379 video_enc.strict_std_compliance = atoi(arg);
4381 } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
4383 get_arg(arg, sizeof(arg), &p);
4384 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4386 } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
4388 get_arg(arg, sizeof(arg), &p);
4389 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4391 } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
4392 get_arg(arg, sizeof(arg), &p);
4394 video_enc.bit_rate = atoi(arg) * 1000;
4396 } else if (!av_strcasecmp(cmd, "VideoSize")) {
4397 get_arg(arg, sizeof(arg), &p);
4399 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4400 if ((video_enc.width % 16) != 0 ||
4401 (video_enc.height % 16) != 0) {
4402 ERROR("Image size must be a multiple of 16\n");
4405 } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
4406 get_arg(arg, sizeof(arg), &p);
4408 AVRational frame_rate;
4409 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4410 ERROR("Incorrect frame rate: %s\n", arg);
4412 video_enc.time_base.num = frame_rate.den;
4413 video_enc.time_base.den = frame_rate.num;
4416 } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
4417 get_arg(arg, sizeof(arg), &p);
4419 video_enc.gop_size = atoi(arg);
4420 } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
4422 video_enc.gop_size = 1;
4423 } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
4425 video_enc.mb_decision = FF_MB_DECISION_BITS;
4426 } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
4428 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4429 video_enc.flags |= CODEC_FLAG_4MV;
4431 } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
4432 !av_strcasecmp(cmd, "AVOptionAudio")) {
4434 AVCodecContext *avctx;
4436 get_arg(arg, sizeof(arg), &p);
4437 get_arg(arg2, sizeof(arg2), &p);
4438 if (!av_strcasecmp(cmd, "AVOptionVideo")) {
4440 type = AV_OPT_FLAG_VIDEO_PARAM;
4443 type = AV_OPT_FLAG_AUDIO_PARAM;
4445 if (avserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4446 ERROR("AVOption error: %s %s\n", arg, arg2);
4448 } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
4449 !av_strcasecmp(cmd, "AVPresetAudio")) {
4450 AVCodecContext *avctx;
4452 get_arg(arg, sizeof(arg), &p);
4453 if (!av_strcasecmp(cmd, "AVPresetVideo")) {
4455 video_enc.codec_id = video_id;
4456 type = AV_OPT_FLAG_VIDEO_PARAM;
4459 audio_enc.codec_id = audio_id;
4460 type = AV_OPT_FLAG_AUDIO_PARAM;
4462 if (avserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4463 ERROR("AVPreset error: %s\n", arg);
4465 } else if (!av_strcasecmp(cmd, "VideoTag")) {
4466 get_arg(arg, sizeof(arg), &p);
4467 if ((strlen(arg) == 4) && stream)
4468 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4469 } else if (!av_strcasecmp(cmd, "BitExact")) {
4471 video_enc.flags |= CODEC_FLAG_BITEXACT;
4472 } else if (!av_strcasecmp(cmd, "DctFastint")) {
4474 video_enc.dct_algo = FF_DCT_FASTINT;
4475 } else if (!av_strcasecmp(cmd, "IdctSimple")) {
4477 video_enc.idct_algo = FF_IDCT_SIMPLE;
4478 } else if (!av_strcasecmp(cmd, "Qscale")) {
4479 get_arg(arg, sizeof(arg), &p);
4481 video_enc.flags |= CODEC_FLAG_QSCALE;
4482 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4484 } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
4485 get_arg(arg, sizeof(arg), &p);
4487 video_enc.max_qdiff = atoi(arg);
4488 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4489 ERROR("VideoQDiff out of range\n");
4492 } else if (!av_strcasecmp(cmd, "VideoQMax")) {
4493 get_arg(arg, sizeof(arg), &p);
4495 video_enc.qmax = atoi(arg);
4496 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4497 ERROR("VideoQMax out of range\n");
4500 } else if (!av_strcasecmp(cmd, "VideoQMin")) {
4501 get_arg(arg, sizeof(arg), &p);
4503 video_enc.qmin = atoi(arg);
4504 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4505 ERROR("VideoQMin out of range\n");
4508 } else if (!av_strcasecmp(cmd, "LumaElim")) {
4509 get_arg(arg, sizeof(arg), &p);
4511 video_enc.luma_elim_threshold = atoi(arg);
4512 } else if (!av_strcasecmp(cmd, "ChromaElim")) {
4513 get_arg(arg, sizeof(arg), &p);
4515 video_enc.chroma_elim_threshold = atoi(arg);
4516 } else if (!av_strcasecmp(cmd, "LumiMask")) {
4517 get_arg(arg, sizeof(arg), &p);
4519 video_enc.lumi_masking = atof(arg);
4520 } else if (!av_strcasecmp(cmd, "DarkMask")) {
4521 get_arg(arg, sizeof(arg), &p);
4523 video_enc.dark_masking = atof(arg);
4524 } else if (!av_strcasecmp(cmd, "NoVideo")) {
4525 video_id = AV_CODEC_ID_NONE;
4526 } else if (!av_strcasecmp(cmd, "NoAudio")) {
4527 audio_id = AV_CODEC_ID_NONE;
4528 } else if (!av_strcasecmp(cmd, "ACL")) {
4529 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4530 } else if (!av_strcasecmp(cmd, "DynamicACL")) {
4532 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4534 } else if (!av_strcasecmp(cmd, "RTSPOption")) {
4535 get_arg(arg, sizeof(arg), &p);
4537 av_freep(&stream->rtsp_option);
4538 stream->rtsp_option = av_strdup(arg);
4540 } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
4541 get_arg(arg, sizeof(arg), &p);
4543 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4544 ERROR("Invalid host/IP address: %s\n", arg);
4546 stream->is_multicast = 1;
4547 stream->loop = 1; /* default is looping */
4549 } else if (!av_strcasecmp(cmd, "MulticastPort")) {
4550 get_arg(arg, sizeof(arg), &p);
4552 stream->multicast_port = atoi(arg);
4553 } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
4554 get_arg(arg, sizeof(arg), &p);
4556 stream->multicast_ttl = atoi(arg);
4557 } else if (!av_strcasecmp(cmd, "NoLoop")) {
4560 } else if (!av_strcasecmp(cmd, "</Stream>")) {
4562 ERROR("No corresponding <Stream> for </Stream>\n");
4564 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4565 if (audio_id != AV_CODEC_ID_NONE) {
4566 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4567 audio_enc.codec_id = audio_id;
4568 add_codec(stream, &audio_enc);
4570 if (video_id != AV_CODEC_ID_NONE) {
4571 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4572 video_enc.codec_id = video_id;
4573 add_codec(stream, &video_enc);
4578 } else if (!av_strcasecmp(cmd, "<Redirect")) {
4579 /*********************************************/
4581 if (stream || feed || redirect) {
4582 ERROR("Already in a tag\n");
4584 redirect = av_mallocz(sizeof(FFStream));
4585 *last_stream = redirect;
4586 last_stream = &redirect->next;
4588 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4589 q = strrchr(redirect->filename, '>');
4592 redirect->stream_type = STREAM_TYPE_REDIRECT;
4594 } else if (!av_strcasecmp(cmd, "URL")) {
4596 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4597 } else if (!av_strcasecmp(cmd, "</Redirect>")) {
4599 ERROR("No corresponding <Redirect> for </Redirect>\n");
4601 if (!redirect->feed_filename[0]) {
4602 ERROR("No URL found for <Redirect>\n");
4606 } else if (!av_strcasecmp(cmd, "LoadModule")) {
4607 get_arg(arg, sizeof(arg), &p);
4611 ERROR("Module support not compiled into this version: '%s'\n", arg);
4614 ERROR("Incorrect keyword: '%s'\n", cmd);
4626 static void handle_child_exit(int sig)
4631 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4634 for (feed = first_feed; feed; feed = feed->next) {
4635 if (feed->pid == pid) {
4636 int uptime = time(0) - feed->pid_start;
4639 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4642 /* Turn off any more restarts */
4643 feed->child_argv = 0;
4648 need_to_start_children = 1;
4651 static void opt_debug(void)
4654 logfilename[0] = '-';
4657 void show_help_default(const char *opt, const char *arg)
4659 printf("usage: avserver [options]\n"
4660 "Hyper fast multi format Audio/Video streaming server\n");
4662 show_help_options(options, "Main options:", 0, 0, 0);
4665 static const OptionDef options[] = {
4666 #include "cmdutils_common_opts.h"
4667 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4668 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4669 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/avserver.conf", "configfile" },
4673 int main(int argc, char **argv)
4675 struct sigaction sigact = { { 0 } };
4677 parse_loglevel(argc, argv, options);
4679 avformat_network_init();
4683 my_program_name = argv[0];
4685 parse_options(NULL, argc, argv, options, NULL);
4687 unsetenv("http_proxy"); /* Kill the http_proxy */
4689 av_lfg_init(&random_state, av_get_random_seed());
4691 sigact.sa_handler = handle_child_exit;
4692 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4693 sigaction(SIGCHLD, &sigact, 0);
4695 if (parse_ffconfig(config_filename) < 0) {
4696 fprintf(stderr, "Incorrect config file - exiting.\n");
4700 /* open log file if needed */
4701 if (logfilename[0] != '\0') {
4702 if (!strcmp(logfilename, "-"))
4705 logfile = fopen(logfilename, "a");
4706 av_log_set_callback(http_av_log);
4709 build_file_streams();
4711 build_feed_streams();
4713 compute_bandwidth();
4716 signal(SIGPIPE, SIG_IGN);
4718 if (http_server() < 0) {
4719 http_log("Could not start server\n");