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
28 #include "libavformat/avformat.h"
29 // FIXME those are internal headers, avserver _really_ shouldn't use them
30 #include "libavformat/ffm.h"
31 #include "libavformat/network.h"
32 #include "libavformat/os_support.h"
33 #include "libavformat/rtpdec.h"
34 #include "libavformat/rtsp.h"
35 #include "libavformat/avio_internal.h"
36 #include "libavformat/internal.h"
37 #include "libavformat/url.h"
39 #include "libavutil/avstring.h"
40 #include "libavutil/lfg.h"
41 #include "libavutil/dict.h"
42 #include "libavutil/mathematics.h"
43 #include "libavutil/random_seed.h"
44 #include "libavutil/parseutils.h"
45 #include "libavutil/opt.h"
46 #include "libavutil/time.h"
51 #include <sys/ioctl.h>
65 const char program_name[] = "avserver";
66 const int program_birth_year = 2000;
68 static const OptionDef options[];
71 HTTPSTATE_WAIT_REQUEST,
72 HTTPSTATE_SEND_HEADER,
73 HTTPSTATE_SEND_DATA_HEADER,
74 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
75 HTTPSTATE_SEND_DATA_TRAILER,
76 HTTPSTATE_RECEIVE_DATA,
77 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
80 RTSPSTATE_WAIT_REQUEST,
82 RTSPSTATE_SEND_PACKET,
85 static const char *http_state[] = {
101 #define MAX_STREAMS 20
103 #define IOBUFFER_INIT_SIZE 8192
105 /* timeouts are in ms */
106 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
107 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
109 #define SYNC_TIMEOUT (10 * 1000)
111 typedef struct RTSPActionServerSetup {
113 char transport_option[512];
114 } RTSPActionServerSetup;
117 int64_t count1, count2;
118 int64_t time1, time2;
121 /* context associated with one connection */
122 typedef struct HTTPContext {
123 enum HTTPState state;
124 int fd; /* socket file descriptor */
125 struct sockaddr_in from_addr; /* origin */
126 struct pollfd *poll_entry; /* used when polling */
128 uint8_t *buffer_ptr, *buffer_end;
131 int chunked_encoding;
132 int chunk_size; /* 0 if it needs to be read */
133 struct HTTPContext *next;
134 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
138 /* input format handling */
139 AVFormatContext *fmt_in;
140 int64_t start_time; /* In milliseconds - this wraps fairly often */
141 int64_t first_pts; /* initial pts value */
142 int64_t cur_pts; /* current pts value from the stream in us */
143 int64_t cur_frame_duration; /* duration of the current frame in us */
144 int cur_frame_bytes; /* output frame size, needed to compute
145 the time at which we send each
147 int pts_stream_index; /* stream we choose as clock reference */
148 int64_t cur_clock; /* current clock reference value in us */
149 /* output format handling */
150 struct FFStream *stream;
151 /* -1 is invalid stream */
152 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
153 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
155 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
156 int last_packet_sent; /* true if last data packet was sent */
158 DataRateData datarate;
165 int is_packetized; /* if true, the stream is packetized */
166 int packet_stream_index; /* current stream for output in state machine */
168 /* RTSP state specific */
169 uint8_t *pb_buffer; /* XXX: use that in all the code */
171 int seq; /* RTSP sequence number */
173 /* RTP state specific */
174 enum RTSPLowerTransport rtp_protocol;
175 char session_id[32]; /* session id */
176 AVFormatContext *rtp_ctx[MAX_STREAMS];
178 /* RTP/UDP specific */
179 URLContext *rtp_handles[MAX_STREAMS];
181 /* RTP/TCP specific */
182 struct HTTPContext *rtsp_c;
183 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
186 /* each generated stream is described here */
190 STREAM_TYPE_REDIRECT,
193 enum IPAddressAction {
198 typedef struct IPAddressACL {
199 struct IPAddressACL *next;
200 enum IPAddressAction action;
201 /* These are in host order */
202 struct in_addr first;
206 /* description of each stream of the avserver.conf file */
207 typedef struct FFStream {
208 enum StreamType stream_type;
209 char filename[1024]; /* stream filename */
210 struct FFStream *feed; /* feed we are using (can be null if
212 AVDictionary *in_opts; /* input parameters */
213 AVInputFormat *ifmt; /* if non NULL, force input format */
216 char dynamic_acl[1024];
218 int prebuffer; /* Number of millseconds early to start */
219 int64_t max_time; /* Number of milliseconds to run */
221 AVStream *streams[MAX_STREAMS];
222 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
223 char feed_filename[1024]; /* file name of the feed storage, or
224 input file name for a stream */
229 pid_t pid; /* of avconv process */
230 time_t pid_start; /* of avconv process */
232 struct FFStream *next;
233 unsigned bandwidth; /* bandwidth, in kbits/s */
236 /* multicast specific */
238 struct in_addr multicast_ip;
239 int multicast_port; /* first port used for multicast */
241 int loop; /* if true, send the stream in loops (only meaningful if file) */
244 int feed_opened; /* true if someone is writing to the feed */
245 int is_feed; /* true if it is a feed */
246 int readonly; /* True if writing is prohibited to the file */
247 int truncate; /* True if feeder connection truncate the feed file */
249 int64_t bytes_served;
250 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
251 int64_t feed_write_index; /* current write position in feed (it wraps around) */
252 int64_t feed_size; /* current size of feed */
253 struct FFStream *next_feed;
256 typedef struct FeedData {
257 long long data_count;
258 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
261 static struct sockaddr_in my_http_addr;
262 static struct sockaddr_in my_rtsp_addr;
264 static char logfilename[1024];
265 static HTTPContext *first_http_ctx;
266 static FFStream *first_feed; /* contains only feeds */
267 static FFStream *first_stream; /* contains all streams, including feeds */
269 static void new_connection(int server_fd, int is_rtsp);
270 static void close_connection(HTTPContext *c);
273 static int handle_connection(HTTPContext *c);
274 static int http_parse_request(HTTPContext *c);
275 static int http_send_data(HTTPContext *c);
276 static void compute_status(HTTPContext *c);
277 static int open_input_stream(HTTPContext *c, const char *info);
278 static int http_start_receive_data(HTTPContext *c);
279 static int http_receive_data(HTTPContext *c);
282 static int rtsp_parse_request(HTTPContext *c);
283 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
284 static void rtsp_cmd_options(HTTPContext *c, const char *url);
285 static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
286 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
287 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
288 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
291 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
292 struct in_addr my_ip);
295 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
296 FFStream *stream, const char *session_id,
297 enum RTSPLowerTransport rtp_protocol);
298 static int rtp_new_av_stream(HTTPContext *c,
299 int stream_index, struct sockaddr_in *dest_addr,
300 HTTPContext *rtsp_c);
302 static const char *my_program_name;
303 static const char *my_program_dir;
305 static const char *config_filename = "/etc/avserver.conf";
307 static int avserver_debug;
308 static int avserver_daemon;
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 void exit_program(int ret)
331 /* FIXME: make avserver work with IPv6 */
332 /* resolve host with also IP address parsing */
333 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
336 if (!ff_inet_aton(hostname, sin_addr)) {
338 struct addrinfo *ai, *cur;
339 struct addrinfo hints = { 0 };
340 hints.ai_family = AF_INET;
341 if (getaddrinfo(hostname, NULL, &hints, &ai))
343 /* getaddrinfo returns a linked list of addrinfo structs.
344 * Even if we set ai_family = AF_INET above, make sure
345 * that the returned one actually is of the correct type. */
346 for (cur = ai; cur; cur = cur->ai_next) {
347 if (cur->ai_family == AF_INET) {
348 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
357 hp = gethostbyname(hostname);
360 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
366 static char *ctime1(char *buf2)
374 p = buf2 + strlen(p) - 1;
380 static void http_vlog(const char *fmt, va_list vargs)
382 static int print_prefix = 1;
387 fprintf(logfile, "%s ", buf);
389 print_prefix = strstr(fmt, "\n") != NULL;
390 vfprintf(logfile, fmt, vargs);
396 __attribute__ ((format (printf, 1, 2)))
398 static void http_log(const char *fmt, ...)
401 va_start(vargs, fmt);
402 http_vlog(fmt, vargs);
406 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
408 static int print_prefix = 1;
409 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
410 if (level > av_log_get_level())
412 if (print_prefix && avc)
413 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
414 print_prefix = strstr(fmt, "\n") != NULL;
415 http_vlog(fmt, vargs);
418 static void log_connection(HTTPContext *c)
423 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
424 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
425 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
428 static void update_datarate(DataRateData *drd, int64_t count)
430 if (!drd->time1 && !drd->count1) {
431 drd->time1 = drd->time2 = cur_time;
432 drd->count1 = drd->count2 = count;
433 } else if (cur_time - drd->time2 > 5000) {
434 drd->time1 = drd->time2;
435 drd->count1 = drd->count2;
436 drd->time2 = cur_time;
441 /* In bytes per second */
442 static int compute_datarate(DataRateData *drd, int64_t count)
444 if (cur_time == drd->time1)
447 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
451 static void start_children(FFStream *feed)
456 for (; feed; feed = feed->next) {
457 if (feed->child_argv && !feed->pid) {
458 feed->pid_start = time(0);
463 http_log("Unable to create children\n");
472 av_strlcpy(pathname, my_program_name, sizeof(pathname));
474 slash = strrchr(pathname, '/');
479 strcpy(slash, "avconv");
481 http_log("Launch command line: ");
482 http_log("%s ", pathname);
483 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
484 http_log("%s ", feed->child_argv[i]);
487 for (i = 3; i < 256; i++)
490 if (!avserver_debug) {
491 i = open("/dev/null", O_RDWR);
500 /* This is needed to make relative pathnames work */
501 chdir(my_program_dir);
503 signal(SIGPIPE, SIG_DFL);
505 execvp(pathname, feed->child_argv);
513 /* open a listening socket */
514 static int socket_open_listen(struct sockaddr_in *my_addr)
518 server_fd = socket(AF_INET,SOCK_STREAM,0);
525 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
527 my_addr->sin_family = AF_INET;
528 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
530 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
532 closesocket(server_fd);
536 if (listen (server_fd, 5) < 0) {
538 closesocket(server_fd);
541 ff_socket_nonblock(server_fd, 1);
546 /* start all multicast streams */
547 static void start_multicast(void)
552 struct sockaddr_in dest_addr;
553 int default_port, stream_index;
556 for(stream = first_stream; stream != NULL; stream = stream->next) {
557 if (stream->is_multicast) {
558 /* open the RTP connection */
559 snprintf(session_id, sizeof(session_id), "%08x%08x",
560 av_lfg_get(&random_state), av_lfg_get(&random_state));
562 /* choose a port if none given */
563 if (stream->multicast_port == 0) {
564 stream->multicast_port = default_port;
568 dest_addr.sin_family = AF_INET;
569 dest_addr.sin_addr = stream->multicast_ip;
570 dest_addr.sin_port = htons(stream->multicast_port);
572 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
573 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
577 if (open_input_stream(rtp_c, "") < 0) {
578 http_log("Could not open input stream for stream '%s'\n",
583 /* open each RTP stream */
584 for(stream_index = 0; stream_index < stream->nb_streams;
586 dest_addr.sin_port = htons(stream->multicast_port +
588 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
589 http_log("Could not open output stream '%s/streamid=%d'\n",
590 stream->filename, stream_index);
595 /* change state to send data */
596 rtp_c->state = HTTPSTATE_SEND_DATA;
601 /* main loop of the http server */
602 static int http_server(void)
604 int server_fd = 0, rtsp_server_fd = 0;
605 int ret, delay, delay1;
606 struct pollfd *poll_table, *poll_entry;
607 HTTPContext *c, *c_next;
609 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
610 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
614 if (my_http_addr.sin_port) {
615 server_fd = socket_open_listen(&my_http_addr);
620 if (my_rtsp_addr.sin_port) {
621 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
622 if (rtsp_server_fd < 0)
626 if (!rtsp_server_fd && !server_fd) {
627 http_log("HTTP and RTSP disabled.\n");
631 http_log("AVserver started.\n");
633 start_children(first_feed);
638 poll_entry = poll_table;
640 poll_entry->fd = server_fd;
641 poll_entry->events = POLLIN;
644 if (rtsp_server_fd) {
645 poll_entry->fd = rtsp_server_fd;
646 poll_entry->events = POLLIN;
650 /* wait for events on each HTTP handle */
657 case HTTPSTATE_SEND_HEADER:
658 case RTSPSTATE_SEND_REPLY:
659 case RTSPSTATE_SEND_PACKET:
660 c->poll_entry = poll_entry;
662 poll_entry->events = POLLOUT;
665 case HTTPSTATE_SEND_DATA_HEADER:
666 case HTTPSTATE_SEND_DATA:
667 case HTTPSTATE_SEND_DATA_TRAILER:
668 if (!c->is_packetized) {
669 /* for TCP, we output as much as we can (may need to put a limit) */
670 c->poll_entry = poll_entry;
672 poll_entry->events = POLLOUT;
675 /* when avserver is doing the timing, we work by
676 looking at which packet need to be sent every
678 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
683 case HTTPSTATE_WAIT_REQUEST:
684 case HTTPSTATE_RECEIVE_DATA:
685 case HTTPSTATE_WAIT_FEED:
686 case RTSPSTATE_WAIT_REQUEST:
687 /* need to catch errors */
688 c->poll_entry = poll_entry;
690 poll_entry->events = POLLIN;/* Maybe this will work */
694 c->poll_entry = NULL;
700 /* wait for an event on one connection. We poll at least every
701 second to handle timeouts */
703 ret = poll(poll_table, poll_entry - poll_table, delay);
704 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
705 ff_neterrno() != AVERROR(EINTR))
709 cur_time = av_gettime() / 1000;
711 if (need_to_start_children) {
712 need_to_start_children = 0;
713 start_children(first_feed);
716 /* now handle the events */
717 for(c = first_http_ctx; c != NULL; c = c_next) {
719 if (handle_connection(c) < 0) {
720 /* close and free the connection */
726 poll_entry = poll_table;
728 /* new HTTP connection request ? */
729 if (poll_entry->revents & POLLIN)
730 new_connection(server_fd, 0);
733 if (rtsp_server_fd) {
734 /* new RTSP connection request ? */
735 if (poll_entry->revents & POLLIN)
736 new_connection(rtsp_server_fd, 1);
741 /* start waiting for a new HTTP/RTSP request */
742 static void start_wait_request(HTTPContext *c, int is_rtsp)
744 c->buffer_ptr = c->buffer;
745 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
748 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
749 c->state = RTSPSTATE_WAIT_REQUEST;
751 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
752 c->state = HTTPSTATE_WAIT_REQUEST;
756 static void http_send_too_busy_reply(int fd)
759 int len = snprintf(buffer, sizeof(buffer),
760 "HTTP/1.0 503 Server too busy\r\n"
761 "Content-type: text/html\r\n"
763 "<html><head><title>Too busy</title></head><body>\r\n"
764 "<p>The server is too busy to serve your request at this time.</p>\r\n"
765 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
766 "</body></html>\r\n",
767 nb_connections, nb_max_connections);
768 send(fd, buffer, len, 0);
772 static void new_connection(int server_fd, int is_rtsp)
774 struct sockaddr_in from_addr;
776 HTTPContext *c = NULL;
778 len = sizeof(from_addr);
779 fd = accept(server_fd, (struct sockaddr *)&from_addr,
782 http_log("error during accept %s\n", strerror(errno));
785 ff_socket_nonblock(fd, 1);
787 if (nb_connections >= nb_max_connections) {
788 http_send_too_busy_reply(fd);
792 /* add a new connection */
793 c = av_mallocz(sizeof(HTTPContext));
798 c->poll_entry = NULL;
799 c->from_addr = from_addr;
800 c->buffer_size = IOBUFFER_INIT_SIZE;
801 c->buffer = av_malloc(c->buffer_size);
805 c->next = first_http_ctx;
809 start_wait_request(c, is_rtsp);
821 static void close_connection(HTTPContext *c)
823 HTTPContext **cp, *c1;
825 AVFormatContext *ctx;
829 /* remove connection from list */
830 cp = &first_http_ctx;
831 while ((*cp) != NULL) {
839 /* remove references, if any (XXX: do it faster) */
840 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
845 /* remove connection associated resources */
849 /* close each frame parser */
850 for(i=0;i<c->fmt_in->nb_streams;i++) {
851 st = c->fmt_in->streams[i];
852 if (st->codec->codec)
853 avcodec_close(st->codec);
855 avformat_close_input(&c->fmt_in);
858 /* free RTP output streams if any */
861 nb_streams = c->stream->nb_streams;
863 for(i=0;i<nb_streams;i++) {
866 av_write_trailer(ctx);
867 av_dict_free(&ctx->metadata);
868 av_free(ctx->streams[0]);
871 h = c->rtp_handles[i];
878 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
881 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
882 av_write_trailer(ctx);
883 av_freep(&c->pb_buffer);
884 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
889 for(i=0; i<ctx->nb_streams; i++)
890 av_free(ctx->streams[i]);
892 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
893 current_bandwidth -= c->stream->bandwidth;
895 /* signal that there is no feed if we are the feeder socket */
896 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
897 c->stream->feed_opened = 0;
901 av_freep(&c->pb_buffer);
902 av_freep(&c->packet_buffer);
908 static int handle_connection(HTTPContext *c)
913 case HTTPSTATE_WAIT_REQUEST:
914 case RTSPSTATE_WAIT_REQUEST:
916 if ((c->timeout - cur_time) < 0)
918 if (c->poll_entry->revents & (POLLERR | POLLHUP))
921 /* no need to read if no events */
922 if (!(c->poll_entry->revents & POLLIN))
926 len = recv(c->fd, c->buffer_ptr, 1, 0);
928 if (ff_neterrno() != AVERROR(EAGAIN) &&
929 ff_neterrno() != AVERROR(EINTR))
931 } else if (len == 0) {
934 /* search for end of request. */
936 c->buffer_ptr += len;
938 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
939 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
940 /* request found : parse it and reply */
941 if (c->state == HTTPSTATE_WAIT_REQUEST) {
942 ret = http_parse_request(c);
944 ret = rtsp_parse_request(c);
948 } else if (ptr >= c->buffer_end) {
949 /* request too long: cannot do anything */
951 } else goto read_loop;
955 case HTTPSTATE_SEND_HEADER:
956 if (c->poll_entry->revents & (POLLERR | POLLHUP))
959 /* no need to write if no events */
960 if (!(c->poll_entry->revents & POLLOUT))
962 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
964 if (ff_neterrno() != AVERROR(EAGAIN) &&
965 ff_neterrno() != AVERROR(EINTR)) {
966 /* error : close connection */
967 av_freep(&c->pb_buffer);
971 c->buffer_ptr += len;
973 c->stream->bytes_served += len;
974 c->data_count += len;
975 if (c->buffer_ptr >= c->buffer_end) {
976 av_freep(&c->pb_buffer);
980 /* all the buffer was sent : synchronize to the incoming stream */
981 c->state = HTTPSTATE_SEND_DATA_HEADER;
982 c->buffer_ptr = c->buffer_end = c->buffer;
987 case HTTPSTATE_SEND_DATA:
988 case HTTPSTATE_SEND_DATA_HEADER:
989 case HTTPSTATE_SEND_DATA_TRAILER:
990 /* for packetized output, we consider we can always write (the
991 input streams sets the speed). It may be better to verify
992 that we do not rely too much on the kernel queues */
993 if (!c->is_packetized) {
994 if (c->poll_entry->revents & (POLLERR | POLLHUP))
997 /* no need to read if no events */
998 if (!(c->poll_entry->revents & POLLOUT))
1001 if (http_send_data(c) < 0)
1003 /* close connection if trailer sent */
1004 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1007 case HTTPSTATE_RECEIVE_DATA:
1008 /* no need to read if no events */
1009 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1011 if (!(c->poll_entry->revents & POLLIN))
1013 if (http_receive_data(c) < 0)
1016 case HTTPSTATE_WAIT_FEED:
1017 /* no need to read if no events */
1018 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1021 /* nothing to do, we'll be waken up by incoming feed packets */
1024 case RTSPSTATE_SEND_REPLY:
1025 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1026 av_freep(&c->pb_buffer);
1029 /* no need to write if no events */
1030 if (!(c->poll_entry->revents & POLLOUT))
1032 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1034 if (ff_neterrno() != AVERROR(EAGAIN) &&
1035 ff_neterrno() != AVERROR(EINTR)) {
1036 /* error : close connection */
1037 av_freep(&c->pb_buffer);
1041 c->buffer_ptr += len;
1042 c->data_count += len;
1043 if (c->buffer_ptr >= c->buffer_end) {
1044 /* all the buffer was sent : wait for a new request */
1045 av_freep(&c->pb_buffer);
1046 start_wait_request(c, 1);
1050 case RTSPSTATE_SEND_PACKET:
1051 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1052 av_freep(&c->packet_buffer);
1055 /* no need to write if no events */
1056 if (!(c->poll_entry->revents & POLLOUT))
1058 len = send(c->fd, c->packet_buffer_ptr,
1059 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1061 if (ff_neterrno() != AVERROR(EAGAIN) &&
1062 ff_neterrno() != AVERROR(EINTR)) {
1063 /* error : close connection */
1064 av_freep(&c->packet_buffer);
1068 c->packet_buffer_ptr += len;
1069 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1070 /* all the buffer was sent : wait for a new request */
1071 av_freep(&c->packet_buffer);
1072 c->state = RTSPSTATE_WAIT_REQUEST;
1076 case HTTPSTATE_READY:
1085 static int extract_rates(char *rates, int ratelen, const char *request)
1089 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1090 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1091 const char *q = p + 7;
1093 while (*q && *q != '\n' && isspace(*q))
1096 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1102 memset(rates, 0xff, ratelen);
1105 while (*q && *q != '\n' && *q != ':')
1108 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1112 if (stream_no < ratelen && stream_no >= 0)
1113 rates[stream_no] = rate_no;
1115 while (*q && *q != '\n' && !isspace(*q))
1122 p = strchr(p, '\n');
1132 static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
1135 int best_bitrate = 100000000;
1138 for (i = 0; i < feed->nb_streams; i++) {
1139 AVCodecContext *feed_codec = feed->streams[i]->codec;
1141 if (feed_codec->codec_id != codec->codec_id ||
1142 feed_codec->sample_rate != codec->sample_rate ||
1143 feed_codec->width != codec->width ||
1144 feed_codec->height != codec->height)
1147 /* Potential stream */
1149 /* We want the fastest stream less than bit_rate, or the slowest
1150 * faster than bit_rate
1153 if (feed_codec->bit_rate <= bit_rate) {
1154 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1155 best_bitrate = feed_codec->bit_rate;
1159 if (feed_codec->bit_rate < best_bitrate) {
1160 best_bitrate = feed_codec->bit_rate;
1169 static int modify_current_stream(HTTPContext *c, char *rates)
1172 FFStream *req = c->stream;
1173 int action_required = 0;
1175 /* Not much we can do for a feed */
1179 for (i = 0; i < req->nb_streams; i++) {
1180 AVCodecContext *codec = req->streams[i]->codec;
1184 c->switch_feed_streams[i] = req->feed_streams[i];
1187 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1190 /* Wants off or slow */
1191 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1193 /* This doesn't work well when it turns off the only stream! */
1194 c->switch_feed_streams[i] = -2;
1195 c->feed_streams[i] = -2;
1200 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1201 action_required = 1;
1204 return action_required;
1207 /* XXX: factorize in utils.c ? */
1208 /* XXX: take care with different space meaning */
1209 static void skip_spaces(const char **pp)
1213 while (*p == ' ' || *p == '\t')
1218 static void get_word(char *buf, int buf_size, const char **pp)
1226 while (!isspace(*p) && *p != '\0') {
1227 if ((q - buf) < buf_size - 1)
1236 static void get_arg(char *buf, int buf_size, const char **pp)
1243 while (isspace(*p)) p++;
1246 if (*p == '\"' || *p == '\'')
1258 if ((q - buf) < buf_size - 1)
1263 if (quote && *p == quote)
1268 static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1269 const char *p, const char *filename, int line_num)
1275 get_arg(arg, sizeof(arg), &p);
1276 if (av_strcasecmp(arg, "allow") == 0)
1277 acl.action = IP_ALLOW;
1278 else if (av_strcasecmp(arg, "deny") == 0)
1279 acl.action = IP_DENY;
1281 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1282 filename, line_num, arg);
1286 get_arg(arg, sizeof(arg), &p);
1288 if (resolve_host(&acl.first, arg) != 0) {
1289 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1290 filename, line_num, arg);
1293 acl.last = acl.first;
1295 get_arg(arg, sizeof(arg), &p);
1298 if (resolve_host(&acl.last, arg) != 0) {
1299 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1300 filename, line_num, arg);
1306 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1307 IPAddressACL **naclp = 0;
1313 naclp = &stream->acl;
1319 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1320 filename, line_num);
1326 naclp = &(*naclp)->next;
1334 static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1339 IPAddressACL *acl = NULL;
1343 f = fopen(stream->dynamic_acl, "r");
1345 perror(stream->dynamic_acl);
1349 acl = av_mallocz(sizeof(IPAddressACL));
1353 if (fgets(line, sizeof(line), f) == NULL)
1359 if (*p == '\0' || *p == '#')
1361 get_arg(cmd, sizeof(cmd), &p);
1363 if (!av_strcasecmp(cmd, "ACL"))
1364 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1371 static void free_acl_list(IPAddressACL *in_acl)
1373 IPAddressACL *pacl,*pacl2;
1383 static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
1385 enum IPAddressAction last_action = IP_DENY;
1387 struct in_addr *src = &c->from_addr.sin_addr;
1388 unsigned long src_addr = src->s_addr;
1390 for (acl = in_acl; acl; acl = acl->next) {
1391 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1392 return (acl->action == IP_ALLOW) ? 1 : 0;
1393 last_action = acl->action;
1396 /* Nothing matched, so return not the last action */
1397 return (last_action == IP_DENY) ? 1 : 0;
1400 static int validate_acl(FFStream *stream, HTTPContext *c)
1406 /* if stream->acl is null validate_acl_list will return 1 */
1407 ret = validate_acl_list(stream->acl, c);
1409 if (stream->dynamic_acl[0]) {
1410 acl = parse_dynamic_acl(stream, c);
1412 ret = validate_acl_list(acl, c);
1420 /* compute the real filename of a file by matching it without its
1421 extensions to all the stream filenames */
1422 static void compute_real_filename(char *filename, int max_size)
1429 /* compute filename by matching without the file extensions */
1430 av_strlcpy(file1, filename, sizeof(file1));
1431 p = strrchr(file1, '.');
1434 for(stream = first_stream; stream != NULL; stream = stream->next) {
1435 av_strlcpy(file2, stream->filename, sizeof(file2));
1436 p = strrchr(file2, '.');
1439 if (!strcmp(file1, file2)) {
1440 av_strlcpy(filename, stream->filename, max_size);
1455 /* parse http request and prepare header */
1456 static int http_parse_request(HTTPContext *c)
1459 enum RedirType redir_type;
1461 char info[1024], filename[1024];
1465 const char *mime_type;
1469 char *useragent = 0;
1472 get_word(cmd, sizeof(cmd), (const char **)&p);
1473 av_strlcpy(c->method, cmd, sizeof(c->method));
1475 if (!strcmp(cmd, "GET"))
1477 else if (!strcmp(cmd, "POST"))
1482 get_word(url, sizeof(url), (const char **)&p);
1483 av_strlcpy(c->url, url, sizeof(c->url));
1485 get_word(protocol, sizeof(protocol), (const char **)&p);
1486 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1489 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1492 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
1494 /* find the filename and the optional info string in the request */
1495 p = strchr(url, '?');
1497 av_strlcpy(info, p, sizeof(info));
1502 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1504 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1505 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1507 if (*useragent && *useragent != '\n' && isspace(*useragent))
1511 p = strchr(p, '\n');
1518 redir_type = REDIR_NONE;
1519 if (av_match_ext(filename, "asx")) {
1520 redir_type = REDIR_ASX;
1521 filename[strlen(filename)-1] = 'f';
1522 } else if (av_match_ext(filename, "asf") &&
1523 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1524 /* if this isn't WMP or lookalike, return the redirector file */
1525 redir_type = REDIR_ASF;
1526 } else if (av_match_ext(filename, "rpm,ram")) {
1527 redir_type = REDIR_RAM;
1528 strcpy(filename + strlen(filename)-2, "m");
1529 } else if (av_match_ext(filename, "rtsp")) {
1530 redir_type = REDIR_RTSP;
1531 compute_real_filename(filename, sizeof(filename) - 1);
1532 } else if (av_match_ext(filename, "sdp")) {
1533 redir_type = REDIR_SDP;
1534 compute_real_filename(filename, sizeof(filename) - 1);
1537 // "redirect" / request to index.html
1538 if (!strlen(filename))
1539 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1541 stream = first_stream;
1542 while (stream != NULL) {
1543 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1545 stream = stream->next;
1547 if (stream == NULL) {
1548 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1549 http_log("File '%s' not found\n", url);
1554 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1555 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1557 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1558 c->http_error = 301;
1560 q += snprintf(q, c->buffer_size,
1561 "HTTP/1.0 301 Moved\r\n"
1563 "Content-type: text/html\r\n"
1565 "<html><head><title>Moved</title></head><body>\r\n"
1566 "You should be <a href=\"%s\">redirected</a>.\r\n"
1567 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
1568 /* prepare output buffer */
1569 c->buffer_ptr = c->buffer;
1571 c->state = HTTPSTATE_SEND_HEADER;
1575 /* If this is WMP, get the rate information */
1576 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1577 if (modify_current_stream(c, ratebuf)) {
1578 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1579 if (c->switch_feed_streams[i] >= 0)
1580 c->switch_feed_streams[i] = -1;
1585 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1586 current_bandwidth += stream->bandwidth;
1588 /* If already streaming this feed, do not let start another feeder. */
1589 if (stream->feed_opened) {
1590 snprintf(msg, sizeof(msg), "This feed is already being received.");
1591 http_log("Feed '%s' already being received\n", stream->feed_filename);
1595 if (c->post == 0 && max_bandwidth < current_bandwidth) {
1596 c->http_error = 503;
1598 q += snprintf(q, c->buffer_size,
1599 "HTTP/1.0 503 Server too busy\r\n"
1600 "Content-type: text/html\r\n"
1602 "<html><head><title>Too busy</title></head><body>\r\n"
1603 "<p>The server is too busy to serve your request at this time.</p>\r\n"
1604 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1605 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
1606 "</body></html>\r\n", current_bandwidth, max_bandwidth);
1607 /* prepare output buffer */
1608 c->buffer_ptr = c->buffer;
1610 c->state = HTTPSTATE_SEND_HEADER;
1614 if (redir_type != REDIR_NONE) {
1617 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1618 if (av_strncasecmp(p, "Host:", 5) == 0) {
1622 p = strchr(p, '\n');
1633 while (isspace(*hostinfo))
1636 eoh = strchr(hostinfo, '\n');
1638 if (eoh[-1] == '\r')
1641 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1642 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1643 hostbuf[eoh - hostinfo] = 0;
1645 c->http_error = 200;
1647 switch(redir_type) {
1649 q += snprintf(q, c->buffer_size,
1650 "HTTP/1.0 200 ASX Follows\r\n"
1651 "Content-type: video/x-ms-asf\r\n"
1653 "<ASX Version=\"3\">\r\n"
1654 //"<!-- Autogenerated by avserver -->\r\n"
1655 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1656 "</ASX>\r\n", hostbuf, filename, info);
1659 q += snprintf(q, c->buffer_size,
1660 "HTTP/1.0 200 RAM Follows\r\n"
1661 "Content-type: audio/x-pn-realaudio\r\n"
1663 "# Autogenerated by avserver\r\n"
1664 "http://%s/%s%s\r\n", hostbuf, filename, info);
1667 q += snprintf(q, c->buffer_size,
1668 "HTTP/1.0 200 ASF Redirect follows\r\n"
1669 "Content-type: video/x-ms-asf\r\n"
1672 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1676 char hostname[256], *p;
1677 /* extract only hostname */
1678 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1679 p = strrchr(hostname, ':');
1682 q += snprintf(q, c->buffer_size,
1683 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1684 /* XXX: incorrect mime type ? */
1685 "Content-type: application/x-rtsp\r\n"
1687 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
1693 int sdp_data_size, len;
1694 struct sockaddr_in my_addr;
1696 q += snprintf(q, c->buffer_size,
1697 "HTTP/1.0 200 OK\r\n"
1698 "Content-type: application/sdp\r\n"
1701 len = sizeof(my_addr);
1702 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
1704 /* XXX: should use a dynamic buffer */
1705 sdp_data_size = prepare_sdp_description(stream,
1708 if (sdp_data_size > 0) {
1709 memcpy(q, sdp_data, sdp_data_size);
1721 /* prepare output buffer */
1722 c->buffer_ptr = c->buffer;
1724 c->state = HTTPSTATE_SEND_HEADER;
1730 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1734 stream->conns_served++;
1736 /* XXX: add there authenticate and IP match */
1739 /* if post, it means a feed is being sent */
1740 if (!stream->is_feed) {
1741 /* However it might be a status report from WMP! Let us log the
1742 * data as it might come in handy one day. */
1746 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1747 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1751 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1752 client_id = strtol(p + 18, 0, 10);
1753 p = strchr(p, '\n');
1761 char *eol = strchr(logline, '\n');
1766 if (eol[-1] == '\r')
1768 http_log("%.*s\n", (int) (eol - logline), logline);
1769 c->suppress_log = 1;
1774 http_log("\nGot request:\n%s\n", c->buffer);
1777 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1780 /* Now we have to find the client_id */
1781 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1782 if (wmpc->wmp_client_id == client_id)
1786 if (wmpc && modify_current_stream(wmpc, ratebuf))
1787 wmpc->switch_pending = 1;
1790 snprintf(msg, sizeof(msg), "POST command not handled");
1794 if (http_start_receive_data(c) < 0) {
1795 snprintf(msg, sizeof(msg), "could not open feed");
1799 c->state = HTTPSTATE_RECEIVE_DATA;
1804 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1805 http_log("\nGot request:\n%s\n", c->buffer);
1808 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1811 /* open input stream */
1812 if (open_input_stream(c, info) < 0) {
1813 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1817 /* prepare http header */
1819 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1820 mime_type = c->stream->fmt->mime_type;
1822 mime_type = "application/x-octet-stream";
1823 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
1825 /* for asf, we need extra headers */
1826 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1827 /* Need to allocate a client id */
1829 c->wmp_client_id = av_lfg_get(&random_state);
1831 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);
1833 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1834 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1836 /* prepare output buffer */
1838 c->buffer_ptr = c->buffer;
1840 c->state = HTTPSTATE_SEND_HEADER;
1843 c->http_error = 404;
1845 q += snprintf(q, c->buffer_size,
1846 "HTTP/1.0 404 Not Found\r\n"
1847 "Content-type: text/html\r\n"
1850 "<head><title>404 Not Found</title></head>\n"
1853 /* prepare output buffer */
1854 c->buffer_ptr = c->buffer;
1856 c->state = HTTPSTATE_SEND_HEADER;
1860 c->http_error = 200; /* horrible : we use this value to avoid
1861 going to the send data state */
1862 c->state = HTTPSTATE_SEND_HEADER;
1866 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1868 static const char suffix[] = " kMGTP";
1871 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1873 avio_printf(pb, "%"PRId64"%c", count, *s);
1876 static void compute_status(HTTPContext *c)
1885 if (avio_open_dyn_buf(&pb) < 0) {
1886 /* XXX: return an error ? */
1887 c->buffer_ptr = c->buffer;
1888 c->buffer_end = c->buffer;
1892 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1893 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1894 avio_printf(pb, "Pragma: no-cache\r\n");
1895 avio_printf(pb, "\r\n");
1897 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1898 if (c->stream->feed_filename[0])
1899 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1900 avio_printf(pb, "</head>\n<body>");
1901 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1903 avio_printf(pb, "<h2>Available Streams</h2>\n");
1904 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1905 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");
1906 stream = first_stream;
1907 while (stream != NULL) {
1908 char sfilename[1024];
1911 if (stream->feed != stream) {
1912 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1913 eosf = sfilename + strlen(sfilename);
1914 if (eosf - sfilename >= 4) {
1915 if (strcmp(eosf - 4, ".asf") == 0)
1916 strcpy(eosf - 4, ".asx");
1917 else if (strcmp(eosf - 3, ".rm") == 0)
1918 strcpy(eosf - 3, ".ram");
1919 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1920 /* generate a sample RTSP director if
1921 unicast. Generate an SDP redirector if
1923 eosf = strrchr(sfilename, '.');
1925 eosf = sfilename + strlen(sfilename);
1926 if (stream->is_multicast)
1927 strcpy(eosf, ".sdp");
1929 strcpy(eosf, ".rtsp");
1933 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1934 sfilename, stream->filename);
1935 avio_printf(pb, "<td align=right> %d <td align=right> ",
1936 stream->conns_served);
1937 fmt_bytecount(pb, stream->bytes_served);
1938 switch(stream->stream_type) {
1939 case STREAM_TYPE_LIVE: {
1940 int audio_bit_rate = 0;
1941 int video_bit_rate = 0;
1942 const char *audio_codec_name = "";
1943 const char *video_codec_name = "";
1944 const char *audio_codec_name_extra = "";
1945 const char *video_codec_name_extra = "";
1947 for(i=0;i<stream->nb_streams;i++) {
1948 AVStream *st = stream->streams[i];
1949 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1950 switch(st->codec->codec_type) {
1951 case AVMEDIA_TYPE_AUDIO:
1952 audio_bit_rate += st->codec->bit_rate;
1954 if (*audio_codec_name)
1955 audio_codec_name_extra = "...";
1956 audio_codec_name = codec->name;
1959 case AVMEDIA_TYPE_VIDEO:
1960 video_bit_rate += st->codec->bit_rate;
1962 if (*video_codec_name)
1963 video_codec_name_extra = "...";
1964 video_codec_name = codec->name;
1967 case AVMEDIA_TYPE_DATA:
1968 video_bit_rate += st->codec->bit_rate;
1974 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",
1977 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1978 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
1980 avio_printf(pb, "<td>%s", stream->feed->filename);
1982 avio_printf(pb, "<td>%s", stream->feed_filename);
1983 avio_printf(pb, "\n");
1987 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
1991 stream = stream->next;
1993 avio_printf(pb, "</table>\n");
1995 stream = first_stream;
1996 while (stream != NULL) {
1997 if (stream->feed == stream) {
1998 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2000 avio_printf(pb, "Running as pid %d.\n", stream->pid);
2002 #if defined(linux) && !defined(CONFIG_NOCUTILS)
2007 /* This is somewhat linux specific I guess */
2008 snprintf(ps_cmd, sizeof(ps_cmd),
2009 "ps -o \"%%cpu,cputime\" --no-headers %d",
2012 pid_stat = popen(ps_cmd, "r");
2017 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2019 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2027 avio_printf(pb, "<p>");
2029 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");
2031 for (i = 0; i < stream->nb_streams; i++) {
2032 AVStream *st = stream->streams[i];
2033 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
2034 const char *type = "unknown";
2035 char parameters[64];
2039 switch(st->codec->codec_type) {
2040 case AVMEDIA_TYPE_AUDIO:
2042 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
2044 case AVMEDIA_TYPE_VIDEO:
2046 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2047 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
2052 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
2053 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
2055 avio_printf(pb, "</table>\n");
2058 stream = stream->next;
2061 /* connection status */
2062 avio_printf(pb, "<h2>Connection Status</h2>\n");
2064 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2065 nb_connections, nb_max_connections);
2067 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2068 current_bandwidth, max_bandwidth);
2070 avio_printf(pb, "<table>\n");
2071 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");
2072 c1 = first_http_ctx;
2074 while (c1 != NULL) {
2080 for (j = 0; j < c1->stream->nb_streams; j++) {
2081 if (!c1->stream->feed)
2082 bitrate += c1->stream->streams[j]->codec->bit_rate;
2083 else if (c1->feed_streams[j] >= 0)
2084 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2089 p = inet_ntoa(c1->from_addr.sin_addr);
2090 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
2092 c1->stream ? c1->stream->filename : "",
2093 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2096 http_state[c1->state]);
2097 fmt_bytecount(pb, bitrate);
2098 avio_printf(pb, "<td align=right>");
2099 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2100 avio_printf(pb, "<td align=right>");
2101 fmt_bytecount(pb, c1->data_count);
2102 avio_printf(pb, "\n");
2105 avio_printf(pb, "</table>\n");
2110 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2111 avio_printf(pb, "</body>\n</html>\n");
2113 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2114 c->buffer_ptr = c->pb_buffer;
2115 c->buffer_end = c->pb_buffer + len;
2118 static int open_input_stream(HTTPContext *c, const char *info)
2121 char input_filename[1024];
2122 AVFormatContext *s = NULL;
2126 /* find file name */
2127 if (c->stream->feed) {
2128 strcpy(input_filename, c->stream->feed->feed_filename);
2129 /* compute position (absolute time) */
2130 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2131 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2133 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2134 int prebuffer = strtol(buf, 0, 10);
2135 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2137 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2139 strcpy(input_filename, c->stream->feed_filename);
2140 /* compute position (relative time) */
2141 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2142 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2147 if (input_filename[0] == '\0')
2151 if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) {
2152 http_log("could not open %s: %d\n", input_filename, ret);
2155 s->flags |= AVFMT_FLAG_GENPTS;
2157 if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) {
2158 http_log("Could not find stream info '%s'\n", input_filename);
2159 avformat_close_input(&s);
2163 /* choose stream as clock source (we favorize video stream if
2164 present) for packet sending */
2165 c->pts_stream_index = 0;
2166 for(i=0;i<c->stream->nb_streams;i++) {
2167 if (c->pts_stream_index == 0 &&
2168 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2169 c->pts_stream_index = i;
2173 if (c->fmt_in->iformat->read_seek)
2174 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2175 /* set the start time (needed for maxtime and RTP packet timing) */
2176 c->start_time = cur_time;
2177 c->first_pts = AV_NOPTS_VALUE;
2181 /* return the server clock (in us) */
2182 static int64_t get_server_clock(HTTPContext *c)
2184 /* compute current pts value from system time */
2185 return (cur_time - c->start_time) * 1000;
2188 /* return the estimated time at which the current packet must be sent
2190 static int64_t get_packet_send_clock(HTTPContext *c)
2192 int bytes_left, bytes_sent, frame_bytes;
2194 frame_bytes = c->cur_frame_bytes;
2195 if (frame_bytes <= 0)
2198 bytes_left = c->buffer_end - c->buffer_ptr;
2199 bytes_sent = frame_bytes - bytes_left;
2200 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2205 static int http_prepare_data(HTTPContext *c)
2208 AVFormatContext *ctx;
2210 av_freep(&c->pb_buffer);
2212 case HTTPSTATE_SEND_DATA_HEADER:
2213 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2214 av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2215 av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2216 av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2217 av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2219 c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
2221 for(i=0;i<c->stream->nb_streams;i++) {
2223 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2224 /* if file or feed, then just take streams from FFStream struct */
2225 if (!c->stream->feed ||
2226 c->stream->feed == c->stream)
2227 src = c->stream->streams[i];
2229 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2231 *(c->fmt_ctx.streams[i]) = *src;
2232 c->fmt_ctx.streams[i]->priv_data = 0;
2233 c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
2234 AVStream, not in codec */
2236 /* set output format parameters */
2237 c->fmt_ctx.oformat = c->stream->fmt;
2238 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2240 c->got_key_frame = 0;
2242 /* prepare header and save header data in a stream */
2243 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2244 /* XXX: potential leak */
2247 c->fmt_ctx.pb->seekable = 0;
2250 * HACK to avoid mpeg ps muxer to spit many underflow errors
2251 * Default value from Libav
2252 * Try to set it use configuration option
2254 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2256 if (avformat_write_header(&c->fmt_ctx, NULL) < 0) {
2257 http_log("Error writing output header\n");
2260 av_dict_free(&c->fmt_ctx.metadata);
2262 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2263 c->buffer_ptr = c->pb_buffer;
2264 c->buffer_end = c->pb_buffer + len;
2266 c->state = HTTPSTATE_SEND_DATA;
2267 c->last_packet_sent = 0;
2269 case HTTPSTATE_SEND_DATA:
2270 /* find a new packet */
2271 /* read a packet from the input stream */
2272 if (c->stream->feed)
2273 ffm_set_write_index(c->fmt_in,
2274 c->stream->feed->feed_write_index,
2275 c->stream->feed->feed_size);
2277 if (c->stream->max_time &&
2278 c->stream->max_time + c->start_time - cur_time < 0)
2279 /* We have timed out */
2280 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2284 ret = av_read_frame(c->fmt_in, &pkt);
2286 if (c->stream->feed) {
2287 /* if coming from feed, it means we reached the end of the
2288 ffm file, so must wait for more data */
2289 c->state = HTTPSTATE_WAIT_FEED;
2290 return 1; /* state changed */
2291 } else if (ret == AVERROR(EAGAIN)) {
2292 /* input not ready, come back later */
2295 if (c->stream->loop) {
2296 avformat_close_input(&c->fmt_in);
2297 if (open_input_stream(c, "") < 0)
2302 /* must send trailer now because eof or error */
2303 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2307 int source_index = pkt.stream_index;
2308 /* update first pts if needed */
2309 if (c->first_pts == AV_NOPTS_VALUE) {
2310 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2311 c->start_time = cur_time;
2313 /* send it to the appropriate stream */
2314 if (c->stream->feed) {
2315 /* if coming from a feed, select the right stream */
2316 if (c->switch_pending) {
2317 c->switch_pending = 0;
2318 for(i=0;i<c->stream->nb_streams;i++) {
2319 if (c->switch_feed_streams[i] == pkt.stream_index)
2320 if (pkt.flags & AV_PKT_FLAG_KEY)
2321 c->switch_feed_streams[i] = -1;
2322 if (c->switch_feed_streams[i] >= 0)
2323 c->switch_pending = 1;
2326 for(i=0;i<c->stream->nb_streams;i++) {
2327 if (c->stream->feed_streams[i] == pkt.stream_index) {
2328 AVStream *st = c->fmt_in->streams[source_index];
2329 pkt.stream_index = i;
2330 if (pkt.flags & AV_PKT_FLAG_KEY &&
2331 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2332 c->stream->nb_streams == 1))
2333 c->got_key_frame = 1;
2334 if (!c->stream->send_on_key || c->got_key_frame)
2339 AVCodecContext *codec;
2340 AVStream *ist, *ost;
2342 ist = c->fmt_in->streams[source_index];
2343 /* specific handling for RTP: we use several
2344 output stream (one for each RTP
2345 connection). XXX: need more abstract handling */
2346 if (c->is_packetized) {
2347 /* compute send time and duration */
2348 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2349 c->cur_pts -= c->first_pts;
2350 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2351 /* find RTP context */
2352 c->packet_stream_index = pkt.stream_index;
2353 ctx = c->rtp_ctx[c->packet_stream_index];
2355 av_free_packet(&pkt);
2358 codec = ctx->streams[0]->codec;
2359 /* only one stream per RTP connection */
2360 pkt.stream_index = 0;
2364 codec = ctx->streams[pkt.stream_index]->codec;
2367 if (c->is_packetized) {
2368 int max_packet_size;
2369 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2370 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2372 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2373 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2375 ret = avio_open_dyn_buf(&ctx->pb);
2378 /* XXX: potential leak */
2381 ost = ctx->streams[pkt.stream_index];
2383 ctx->pb->seekable = 0;
2384 if (pkt.dts != AV_NOPTS_VALUE)
2385 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
2386 if (pkt.pts != AV_NOPTS_VALUE)
2387 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2388 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
2389 if (av_write_frame(ctx, &pkt) < 0) {
2390 http_log("Error writing frame to output\n");
2391 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2394 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2395 c->cur_frame_bytes = len;
2396 c->buffer_ptr = c->pb_buffer;
2397 c->buffer_end = c->pb_buffer + len;
2399 codec->frame_number++;
2401 av_free_packet(&pkt);
2405 av_free_packet(&pkt);
2410 case HTTPSTATE_SEND_DATA_TRAILER:
2411 /* last packet test ? */
2412 if (c->last_packet_sent || c->is_packetized)
2415 /* prepare header */
2416 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2417 /* XXX: potential leak */
2420 c->fmt_ctx.pb->seekable = 0;
2421 av_write_trailer(ctx);
2422 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2423 c->buffer_ptr = c->pb_buffer;
2424 c->buffer_end = c->pb_buffer + len;
2426 c->last_packet_sent = 1;
2432 /* should convert the format at the same time */
2433 /* send data starting at c->buffer_ptr to the output connection
2434 (either UDP or TCP connection) */
2435 static int http_send_data(HTTPContext *c)
2440 if (c->buffer_ptr >= c->buffer_end) {
2441 ret = http_prepare_data(c);
2445 /* state change requested */
2448 if (c->is_packetized) {
2449 /* RTP data output */
2450 len = c->buffer_end - c->buffer_ptr;
2452 /* fail safe - should never happen */
2454 c->buffer_ptr = c->buffer_end;
2457 len = (c->buffer_ptr[0] << 24) |
2458 (c->buffer_ptr[1] << 16) |
2459 (c->buffer_ptr[2] << 8) |
2461 if (len > (c->buffer_end - c->buffer_ptr))
2463 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2464 /* nothing to send yet: we can wait */
2468 c->data_count += len;
2469 update_datarate(&c->datarate, c->data_count);
2471 c->stream->bytes_served += len;
2473 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2474 /* RTP packets are sent inside the RTSP TCP connection */
2476 int interleaved_index, size;
2478 HTTPContext *rtsp_c;
2481 /* if no RTSP connection left, error */
2484 /* if already sending something, then wait. */
2485 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2487 if (avio_open_dyn_buf(&pb) < 0)
2489 interleaved_index = c->packet_stream_index * 2;
2490 /* RTCP packets are sent at odd indexes */
2491 if (c->buffer_ptr[1] == 200)
2492 interleaved_index++;
2493 /* write RTSP TCP header */
2495 header[1] = interleaved_index;
2496 header[2] = len >> 8;
2498 avio_write(pb, header, 4);
2499 /* write RTP packet data */
2501 avio_write(pb, c->buffer_ptr, len);
2502 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2503 /* prepare asynchronous TCP sending */
2504 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2505 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2506 c->buffer_ptr += len;
2508 /* send everything we can NOW */
2509 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2510 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2512 rtsp_c->packet_buffer_ptr += len;
2513 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2514 /* if we could not send all the data, we will
2515 send it later, so a new state is needed to
2516 "lock" the RTSP TCP connection */
2517 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2520 /* all data has been sent */
2521 av_freep(&c->packet_buffer);
2523 /* send RTP packet directly in UDP */
2525 ffurl_write(c->rtp_handles[c->packet_stream_index],
2526 c->buffer_ptr, len);
2527 c->buffer_ptr += len;
2528 /* here we continue as we can send several packets per 10 ms slot */
2531 /* TCP data output */
2532 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2534 if (ff_neterrno() != AVERROR(EAGAIN) &&
2535 ff_neterrno() != AVERROR(EINTR))
2536 /* error : close connection */
2541 c->buffer_ptr += len;
2543 c->data_count += len;
2544 update_datarate(&c->datarate, c->data_count);
2546 c->stream->bytes_served += len;
2554 static int http_start_receive_data(HTTPContext *c)
2558 if (c->stream->feed_opened)
2561 /* Don't permit writing to this one */
2562 if (c->stream->readonly)
2566 fd = open(c->stream->feed_filename, O_RDWR);
2568 http_log("Error opening feeder file: %s\n", strerror(errno));
2573 if (c->stream->truncate) {
2574 /* truncate feed file */
2575 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2576 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2577 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2578 http_log("Error truncating feed file: %s\n", strerror(errno));
2582 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2583 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2588 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
2589 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2590 lseek(fd, 0, SEEK_SET);
2592 /* init buffer input */
2593 c->buffer_ptr = c->buffer;
2594 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2595 c->stream->feed_opened = 1;
2596 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2600 static int http_receive_data(HTTPContext *c)
2603 int len, loop_run = 0;
2605 while (c->chunked_encoding && !c->chunk_size &&
2606 c->buffer_end > c->buffer_ptr) {
2607 /* read chunk header, if present */
2608 len = recv(c->fd, c->buffer_ptr, 1, 0);
2611 if (ff_neterrno() != AVERROR(EAGAIN) &&
2612 ff_neterrno() != AVERROR(EINTR))
2613 /* error : close connection */
2616 } else if (len == 0) {
2617 /* end of connection : close it */
2619 } else if (c->buffer_ptr - c->buffer >= 2 &&
2620 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2621 c->chunk_size = strtol(c->buffer, 0, 16);
2622 if (c->chunk_size == 0) // end of stream
2624 c->buffer_ptr = c->buffer;
2626 } else if (++loop_run > 10) {
2627 /* no chunk header, abort */
2634 if (c->buffer_end > c->buffer_ptr) {
2635 len = recv(c->fd, c->buffer_ptr,
2636 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2638 if (ff_neterrno() != AVERROR(EAGAIN) &&
2639 ff_neterrno() != AVERROR(EINTR))
2640 /* error : close connection */
2642 } else if (len == 0)
2643 /* end of connection : close it */
2646 c->chunk_size -= len;
2647 c->buffer_ptr += len;
2648 c->data_count += len;
2649 update_datarate(&c->datarate, c->data_count);
2653 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2654 if (c->buffer[0] != 'f' ||
2655 c->buffer[1] != 'm') {
2656 http_log("Feed stream has become desynchronized -- disconnecting\n");
2661 if (c->buffer_ptr >= c->buffer_end) {
2662 FFStream *feed = c->stream;
2663 /* a packet has been received : write it in the store, except
2665 if (c->data_count > FFM_PACKET_SIZE) {
2667 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
2668 /* XXX: use llseek or url_seek */
2669 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2670 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2671 http_log("Error writing to feed file: %s\n", strerror(errno));
2675 feed->feed_write_index += FFM_PACKET_SIZE;
2676 /* update file size */
2677 if (feed->feed_write_index > c->stream->feed_size)
2678 feed->feed_size = feed->feed_write_index;
2680 /* handle wrap around if max file size reached */
2681 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
2682 feed->feed_write_index = FFM_PACKET_SIZE;
2685 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2686 http_log("Error writing index to feed file: %s\n", strerror(errno));
2690 /* wake up any waiting connections */
2691 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2692 if (c1->state == HTTPSTATE_WAIT_FEED &&
2693 c1->stream->feed == c->stream->feed)
2694 c1->state = HTTPSTATE_SEND_DATA;
2697 /* We have a header in our hands that contains useful data */
2698 AVFormatContext *s = avformat_alloc_context();
2700 AVInputFormat *fmt_in;
2706 /* use feed output format name to find corresponding input format */
2707 fmt_in = av_find_input_format(feed->fmt->name);
2711 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2712 0, NULL, NULL, NULL, NULL);
2716 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2721 /* Now we have the actual streams */
2722 if (s->nb_streams != feed->nb_streams) {
2723 avformat_close_input(&s);
2725 http_log("Feed '%s' stream number does not match registered feed\n",
2726 c->stream->feed_filename);
2730 for (i = 0; i < s->nb_streams; i++) {
2731 AVStream *fst = feed->streams[i];
2732 AVStream *st = s->streams[i];
2733 avcodec_copy_context(fst->codec, st->codec);
2736 avformat_close_input(&s);
2739 c->buffer_ptr = c->buffer;
2744 c->stream->feed_opened = 0;
2746 /* wake up any waiting connections to stop waiting for feed */
2747 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2748 if (c1->state == HTTPSTATE_WAIT_FEED &&
2749 c1->stream->feed == c->stream->feed)
2750 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2755 /********************************************************************/
2758 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2765 switch(error_number) {
2766 case RTSP_STATUS_OK:
2769 case RTSP_STATUS_METHOD:
2770 str = "Method Not Allowed";
2772 case RTSP_STATUS_BANDWIDTH:
2773 str = "Not Enough Bandwidth";
2775 case RTSP_STATUS_SESSION:
2776 str = "Session Not Found";
2778 case RTSP_STATUS_STATE:
2779 str = "Method Not Valid in This State";
2781 case RTSP_STATUS_AGGREGATE:
2782 str = "Aggregate operation not allowed";
2784 case RTSP_STATUS_ONLY_AGGREGATE:
2785 str = "Only aggregate operation allowed";
2787 case RTSP_STATUS_TRANSPORT:
2788 str = "Unsupported transport";
2790 case RTSP_STATUS_INTERNAL:
2791 str = "Internal Server Error";
2793 case RTSP_STATUS_SERVICE:
2794 str = "Service Unavailable";
2796 case RTSP_STATUS_VERSION:
2797 str = "RTSP Version not supported";
2800 str = "Unknown Error";
2804 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2805 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2807 /* output GMT time */
2810 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2811 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2814 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2816 rtsp_reply_header(c, error_number);
2817 avio_printf(c->pb, "\r\n");
2820 static int rtsp_parse_request(HTTPContext *c)
2822 const char *p, *p1, *p2;
2828 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2830 c->buffer_ptr[0] = '\0';
2833 get_word(cmd, sizeof(cmd), &p);
2834 get_word(url, sizeof(url), &p);
2835 get_word(protocol, sizeof(protocol), &p);
2837 av_strlcpy(c->method, cmd, sizeof(c->method));
2838 av_strlcpy(c->url, url, sizeof(c->url));
2839 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2841 if (avio_open_dyn_buf(&c->pb) < 0) {
2842 /* XXX: cannot do more */
2843 c->pb = NULL; /* safety */
2847 /* check version name */
2848 if (strcmp(protocol, "RTSP/1.0") != 0) {
2849 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2853 /* parse each header line */
2854 /* skip to next line */
2855 while (*p != '\n' && *p != '\0')
2859 while (*p != '\0') {
2860 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2864 if (p2 > p && p2[-1] == '\r')
2866 /* skip empty line */
2870 if (len > sizeof(line) - 1)
2871 len = sizeof(line) - 1;
2872 memcpy(line, p, len);
2874 ff_rtsp_parse_line(header, line, NULL, NULL);
2878 /* handle sequence number */
2879 c->seq = header->seq;
2881 if (!strcmp(cmd, "DESCRIBE"))
2882 rtsp_cmd_describe(c, url);
2883 else if (!strcmp(cmd, "OPTIONS"))
2884 rtsp_cmd_options(c, url);
2885 else if (!strcmp(cmd, "SETUP"))
2886 rtsp_cmd_setup(c, url, header);
2887 else if (!strcmp(cmd, "PLAY"))
2888 rtsp_cmd_play(c, url, header);
2889 else if (!strcmp(cmd, "PAUSE"))
2890 rtsp_cmd_pause(c, url, header);
2891 else if (!strcmp(cmd, "TEARDOWN"))
2892 rtsp_cmd_teardown(c, url, header);
2894 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2897 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2898 c->pb = NULL; /* safety */
2900 /* XXX: cannot do more */
2903 c->buffer_ptr = c->pb_buffer;
2904 c->buffer_end = c->pb_buffer + len;
2905 c->state = RTSPSTATE_SEND_REPLY;
2909 static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
2910 struct in_addr my_ip)
2912 AVFormatContext *avc;
2913 AVStream *avs = NULL;
2916 avc = avformat_alloc_context();
2920 av_dict_set(&avc->metadata, "title",
2921 stream->title[0] ? stream->title : "No Title", 0);
2922 avc->nb_streams = stream->nb_streams;
2923 if (stream->is_multicast) {
2924 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2925 inet_ntoa(stream->multicast_ip),
2926 stream->multicast_port, stream->multicast_ttl);
2928 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2931 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2932 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2934 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2935 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2938 for(i = 0; i < stream->nb_streams; i++) {
2939 avc->streams[i] = &avs[i];
2940 avc->streams[i]->codec = stream->streams[i]->codec;
2942 *pbuffer = av_mallocz(2048);
2943 av_sdp_create(&avc, 1, *pbuffer, 2048);
2946 av_free(avc->streams);
2947 av_dict_free(&avc->metadata);
2951 return strlen(*pbuffer);
2954 static void rtsp_cmd_options(HTTPContext *c, const char *url)
2956 // rtsp_reply_header(c, RTSP_STATUS_OK);
2957 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2958 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2959 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2960 avio_printf(c->pb, "\r\n");
2963 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2969 int content_length, len;
2970 struct sockaddr_in my_addr;
2972 /* find which url is asked */
2973 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2978 for(stream = first_stream; stream != NULL; stream = stream->next) {
2979 if (!stream->is_feed &&
2980 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2981 !strcmp(path, stream->filename)) {
2985 /* no stream found */
2986 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2990 /* prepare the media description in sdp format */
2992 /* get the host IP */
2993 len = sizeof(my_addr);
2994 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
2995 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
2996 if (content_length < 0) {
2997 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3000 rtsp_reply_header(c, RTSP_STATUS_OK);
3001 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3002 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3003 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3004 avio_printf(c->pb, "\r\n");
3005 avio_write(c->pb, content, content_length);
3009 static HTTPContext *find_rtp_session(const char *session_id)
3013 if (session_id[0] == '\0')
3016 for(c = first_http_ctx; c != NULL; c = c->next) {
3017 if (!strcmp(c->session_id, session_id))
3023 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3025 RTSPTransportField *th;
3028 for(i=0;i<h->nb_transports;i++) {
3029 th = &h->transports[i];
3030 if (th->lower_transport == lower_transport)
3036 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3037 RTSPMessageHeader *h)
3040 int stream_index, rtp_port, rtcp_port;
3045 RTSPTransportField *th;
3046 struct sockaddr_in dest_addr;
3047 RTSPActionServerSetup setup;
3049 /* find which url is asked */
3050 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3055 /* now check each stream */
3056 for(stream = first_stream; stream != NULL; stream = stream->next) {
3057 if (!stream->is_feed &&
3058 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3059 /* accept aggregate filenames only if single stream */
3060 if (!strcmp(path, stream->filename)) {
3061 if (stream->nb_streams != 1) {
3062 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3069 for(stream_index = 0; stream_index < stream->nb_streams;
3071 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3072 stream->filename, stream_index);
3073 if (!strcmp(path, buf))
3078 /* no stream found */
3079 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3083 /* generate session id if needed */
3084 if (h->session_id[0] == '\0')
3085 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3086 av_lfg_get(&random_state), av_lfg_get(&random_state));
3088 /* find rtp session, and create it if none found */
3089 rtp_c = find_rtp_session(h->session_id);
3091 /* always prefer UDP */
3092 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3094 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3096 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3101 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3102 th->lower_transport);
3104 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3108 /* open input stream */
3109 if (open_input_stream(rtp_c, "") < 0) {
3110 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3115 /* test if stream is OK (test needed because several SETUP needs
3116 to be done for a given file) */
3117 if (rtp_c->stream != stream) {
3118 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3122 /* test if stream is already set up */
3123 if (rtp_c->rtp_ctx[stream_index]) {
3124 rtsp_reply_error(c, RTSP_STATUS_STATE);
3128 /* check transport */
3129 th = find_transport(h, rtp_c->rtp_protocol);
3130 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3131 th->client_port_min <= 0)) {
3132 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3136 /* setup default options */
3137 setup.transport_option[0] = '\0';
3138 dest_addr = rtp_c->from_addr;
3139 dest_addr.sin_port = htons(th->client_port_min);
3142 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3143 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3147 /* now everything is OK, so we can send the connection parameters */
3148 rtsp_reply_header(c, RTSP_STATUS_OK);
3150 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3152 switch(rtp_c->rtp_protocol) {
3153 case RTSP_LOWER_TRANSPORT_UDP:
3154 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3155 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3156 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3157 "client_port=%d-%d;server_port=%d-%d",
3158 th->client_port_min, th->client_port_max,
3159 rtp_port, rtcp_port);
3161 case RTSP_LOWER_TRANSPORT_TCP:
3162 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3163 stream_index * 2, stream_index * 2 + 1);
3168 if (setup.transport_option[0] != '\0')
3169 avio_printf(c->pb, ";%s", setup.transport_option);
3170 avio_printf(c->pb, "\r\n");
3173 avio_printf(c->pb, "\r\n");
3177 /* find an rtp connection by using the session ID. Check consistency
3179 static HTTPContext *find_rtp_session_with_url(const char *url,
3180 const char *session_id)
3188 rtp_c = find_rtp_session(session_id);
3192 /* find which url is asked */
3193 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3197 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3198 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3199 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3200 rtp_c->stream->filename, s);
3201 if(!strncmp(path, buf, sizeof(buf))) {
3202 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3207 if (len > 0 && path[len - 1] == '/' &&
3208 !strncmp(path, rtp_c->stream->filename, len - 1))
3213 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3217 rtp_c = find_rtp_session_with_url(url, h->session_id);
3219 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3223 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3224 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3225 rtp_c->state != HTTPSTATE_READY) {
3226 rtsp_reply_error(c, RTSP_STATUS_STATE);
3230 rtp_c->state = HTTPSTATE_SEND_DATA;
3232 /* now everything is OK, so we can send the connection parameters */
3233 rtsp_reply_header(c, RTSP_STATUS_OK);
3235 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3236 avio_printf(c->pb, "\r\n");
3239 static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3243 rtp_c = find_rtp_session_with_url(url, h->session_id);
3245 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3249 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3250 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3251 rtsp_reply_error(c, RTSP_STATUS_STATE);
3255 rtp_c->state = HTTPSTATE_READY;
3256 rtp_c->first_pts = AV_NOPTS_VALUE;
3257 /* now everything is OK, so we can send the connection parameters */
3258 rtsp_reply_header(c, RTSP_STATUS_OK);
3260 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3261 avio_printf(c->pb, "\r\n");
3264 static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3268 rtp_c = find_rtp_session_with_url(url, h->session_id);
3270 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3274 /* now everything is OK, so we can send the connection parameters */
3275 rtsp_reply_header(c, RTSP_STATUS_OK);
3277 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3278 avio_printf(c->pb, "\r\n");
3280 /* abort the session */
3281 close_connection(rtp_c);
3285 /********************************************************************/
3288 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3289 FFStream *stream, const char *session_id,
3290 enum RTSPLowerTransport rtp_protocol)
3292 HTTPContext *c = NULL;
3293 const char *proto_str;
3295 /* XXX: should output a warning page when coming
3296 close to the connection limit */
3297 if (nb_connections >= nb_max_connections)
3300 /* add a new connection */
3301 c = av_mallocz(sizeof(HTTPContext));
3306 c->poll_entry = NULL;
3307 c->from_addr = *from_addr;
3308 c->buffer_size = IOBUFFER_INIT_SIZE;
3309 c->buffer = av_malloc(c->buffer_size);
3314 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3315 c->state = HTTPSTATE_READY;
3316 c->is_packetized = 1;
3317 c->rtp_protocol = rtp_protocol;
3319 /* protocol is shown in statistics */
3320 switch(c->rtp_protocol) {
3321 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3322 proto_str = "MCAST";
3324 case RTSP_LOWER_TRANSPORT_UDP:
3327 case RTSP_LOWER_TRANSPORT_TCP:
3334 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3335 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3337 current_bandwidth += stream->bandwidth;
3339 c->next = first_http_ctx;
3351 /* add a new RTP stream in an RTP connection (used in RTSP SETUP
3352 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3354 static int rtp_new_av_stream(HTTPContext *c,
3355 int stream_index, struct sockaddr_in *dest_addr,
3356 HTTPContext *rtsp_c)
3358 AVFormatContext *ctx;
3361 URLContext *h = NULL;
3363 int max_packet_size;
3365 /* now we can open the relevant output stream */
3366 ctx = avformat_alloc_context();
3369 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3371 st = av_mallocz(sizeof(AVStream));
3374 ctx->nb_streams = 1;
3375 ctx->streams = av_mallocz(sizeof(AVStream *) * ctx->nb_streams);
3378 ctx->streams[0] = st;
3380 if (!c->stream->feed ||
3381 c->stream->feed == c->stream)
3382 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3385 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3387 st->priv_data = NULL;
3389 /* build destination RTP address */
3390 ipaddr = inet_ntoa(dest_addr->sin_addr);
3392 switch(c->rtp_protocol) {
3393 case RTSP_LOWER_TRANSPORT_UDP:
3394 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3397 /* XXX: also pass as parameter to function ? */
3398 if (c->stream->is_multicast) {
3400 ttl = c->stream->multicast_ttl;
3403 snprintf(ctx->filename, sizeof(ctx->filename),
3404 "rtp://%s:%d?multicast=1&ttl=%d",
3405 ipaddr, ntohs(dest_addr->sin_port), ttl);
3407 snprintf(ctx->filename, sizeof(ctx->filename),
3408 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3411 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3413 c->rtp_handles[stream_index] = h;
3414 max_packet_size = h->max_packet_size;
3416 case RTSP_LOWER_TRANSPORT_TCP:
3419 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3425 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3426 ipaddr, ntohs(dest_addr->sin_port),
3427 c->stream->filename, stream_index, c->protocol);
3429 /* normally, no packets should be output here, but the packet size may be checked */
3430 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
3431 /* XXX: close stream */
3434 if (avformat_write_header(ctx, NULL) < 0) {
3441 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3444 c->rtp_ctx[stream_index] = ctx;
3448 /********************************************************************/
3449 /* avserver initialization */
3451 static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec, int copy)
3455 fst = av_mallocz(sizeof(AVStream));
3459 fst->codec = avcodec_alloc_context3(NULL);
3460 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3461 if (codec->extradata_size) {
3462 fst->codec->extradata = av_malloc(codec->extradata_size);
3463 memcpy(fst->codec->extradata, codec->extradata,
3464 codec->extradata_size);
3467 /* live streams must use the actual feed's codec since it may be
3468 * updated later to carry extradata needed by the streams.
3472 fst->priv_data = av_mallocz(sizeof(FeedData));
3473 fst->index = stream->nb_streams;
3474 avpriv_set_pts_info(fst, 33, 1, 90000);
3475 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3476 stream->streams[stream->nb_streams++] = fst;
3480 /* return the stream number in the feed */
3481 static int add_av_stream(FFStream *feed, AVStream *st)
3484 AVCodecContext *av, *av1;
3488 for(i=0;i<feed->nb_streams;i++) {
3489 st = feed->streams[i];
3491 if (av1->codec_id == av->codec_id &&
3492 av1->codec_type == av->codec_type &&
3493 av1->bit_rate == av->bit_rate) {
3495 switch(av->codec_type) {
3496 case AVMEDIA_TYPE_AUDIO:
3497 if (av1->channels == av->channels &&
3498 av1->sample_rate == av->sample_rate)
3501 case AVMEDIA_TYPE_VIDEO:
3502 if (av1->width == av->width &&
3503 av1->height == av->height &&
3504 av1->time_base.den == av->time_base.den &&
3505 av1->time_base.num == av->time_base.num &&
3506 av1->gop_size == av->gop_size)
3515 fst = add_av_stream1(feed, av, 0);
3518 return feed->nb_streams - 1;
3521 static void remove_stream(FFStream *stream)
3525 while (*ps != NULL) {
3533 /* specific mpeg4 handling : we extract the raw parameters */
3534 static void extract_mpeg4_header(AVFormatContext *infile)
3536 int mpeg4_count, i, size;
3542 for(i=0;i<infile->nb_streams;i++) {
3543 st = infile->streams[i];
3544 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3545 st->codec->extradata_size == 0) {
3552 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
3553 while (mpeg4_count > 0) {
3554 if (av_read_packet(infile, &pkt) < 0)
3556 st = infile->streams[pkt.stream_index];
3557 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3558 st->codec->extradata_size == 0) {
3559 av_freep(&st->codec->extradata);
3560 /* fill extradata with the header */
3561 /* XXX: we make hard suppositions here ! */
3563 while (p < pkt.data + pkt.size - 4) {
3564 /* stop when vop header is found */
3565 if (p[0] == 0x00 && p[1] == 0x00 &&
3566 p[2] == 0x01 && p[3] == 0xb6) {
3567 size = p - pkt.data;
3568 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
3569 st->codec->extradata = av_malloc(size);
3570 st->codec->extradata_size = size;
3571 memcpy(st->codec->extradata, pkt.data, size);
3578 av_free_packet(&pkt);
3582 /* compute the needed AVStream for each file */
3583 static void build_file_streams(void)
3585 FFStream *stream, *stream_next;
3588 /* gather all streams */
3589 for(stream = first_stream; stream != NULL; stream = stream_next) {
3590 AVFormatContext *infile = NULL;
3591 stream_next = stream->next;
3592 if (stream->stream_type == STREAM_TYPE_LIVE &&
3594 /* the stream comes from a file */
3595 /* try to open the file */
3597 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
3598 /* specific case : if transport stream output to RTP,
3599 we use a raw transport stream reader */
3600 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3603 http_log("Opening file '%s'\n", stream->feed_filename);
3604 if ((ret = avformat_open_input(&infile, stream->feed_filename, stream->ifmt, &stream->in_opts)) < 0) {
3605 http_log("Could not open '%s': %d\n", stream->feed_filename, ret);
3606 /* remove stream (no need to spend more time on it) */
3608 remove_stream(stream);
3610 /* find all the AVStreams inside and reference them in
3612 if (avformat_find_stream_info(infile, NULL) < 0) {
3613 http_log("Could not find codec parameters from '%s'\n",
3614 stream->feed_filename);
3615 avformat_close_input(&infile);
3618 extract_mpeg4_header(infile);
3620 for(i=0;i<infile->nb_streams;i++)
3621 add_av_stream1(stream, infile->streams[i]->codec, 1);
3623 avformat_close_input(&infile);
3629 /* compute the needed AVStream for each feed */
3630 static void build_feed_streams(void)
3632 FFStream *stream, *feed;
3635 /* gather all streams */
3636 for(stream = first_stream; stream != NULL; stream = stream->next) {
3637 feed = stream->feed;
3639 if (stream->is_feed) {
3640 for(i=0;i<stream->nb_streams;i++)
3641 stream->feed_streams[i] = i;
3643 /* we handle a stream coming from a feed */
3644 for(i=0;i<stream->nb_streams;i++)
3645 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3650 /* create feed files if needed */
3651 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3654 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3655 /* See if it matches */
3656 AVFormatContext *s = NULL;
3659 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) >= 0) {
3660 /* Now see if it matches */
3661 if (s->nb_streams == feed->nb_streams) {
3663 for(i=0;i<s->nb_streams;i++) {
3665 sf = feed->streams[i];
3668 if (sf->index != ss->index ||
3670 http_log("Index & Id do not match for stream %d (%s)\n",
3671 i, feed->feed_filename);
3674 AVCodecContext *ccf, *ccs;
3678 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3680 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3681 http_log("Codecs do not match for stream %d\n", i);
3683 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3684 http_log("Codec bitrates do not match for stream %d\n", i);
3686 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3687 if (CHECK_CODEC(time_base.den) ||
3688 CHECK_CODEC(time_base.num) ||
3689 CHECK_CODEC(width) ||
3690 CHECK_CODEC(height)) {
3691 http_log("Codec width, height and framerate do not match for stream %d\n", i);
3694 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3695 if (CHECK_CODEC(sample_rate) ||
3696 CHECK_CODEC(channels) ||
3697 CHECK_CODEC(frame_size)) {
3698 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", i);
3702 http_log("Unknown codec type\n");
3710 http_log("Deleting feed file '%s' as stream counts differ (%d != %d)\n",
3711 feed->feed_filename, s->nb_streams, feed->nb_streams);
3713 avformat_close_input(&s);
3715 http_log("Deleting feed file '%s' as it appears to be corrupt\n",
3716 feed->feed_filename);
3719 if (feed->readonly) {
3720 http_log("Unable to delete feed file '%s' as it is marked readonly\n",
3721 feed->feed_filename);
3724 unlink(feed->feed_filename);
3727 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3728 AVFormatContext s1 = {0}, *s = &s1;
3730 if (feed->readonly) {
3731 http_log("Unable to create feed file '%s' as it is marked readonly\n",
3732 feed->feed_filename);
3736 /* only write the header of the ffm file */
3737 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3738 http_log("Could not open output feed file '%s'\n",
3739 feed->feed_filename);
3742 s->oformat = feed->fmt;
3743 s->nb_streams = feed->nb_streams;
3744 s->streams = feed->streams;
3745 if (avformat_write_header(s, NULL) < 0) {
3746 http_log("Container doesn't supports the required parameters\n");
3749 /* XXX: need better api */
3750 av_freep(&s->priv_data);
3753 /* get feed size and write index */
3754 fd = open(feed->feed_filename, O_RDONLY);
3756 http_log("Could not open output feed file '%s'\n",
3757 feed->feed_filename);
3761 feed->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
3762 feed->feed_size = lseek(fd, 0, SEEK_END);
3763 /* ensure that we do not wrap before the end of file */
3764 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3765 feed->feed_max_size = feed->feed_size;
3771 /* compute the bandwidth used by each stream */
3772 static void compute_bandwidth(void)
3778 for(stream = first_stream; stream != NULL; stream = stream->next) {
3780 for(i=0;i<stream->nb_streams;i++) {
3781 AVStream *st = stream->streams[i];
3782 switch(st->codec->codec_type) {
3783 case AVMEDIA_TYPE_AUDIO:
3784 case AVMEDIA_TYPE_VIDEO:
3785 bandwidth += st->codec->bit_rate;
3791 stream->bandwidth = (bandwidth + 999) / 1000;
3795 /* add a codec and set the default parameters */
3796 static void add_codec(FFStream *stream, AVCodecContext *av)
3800 /* compute default parameters */
3801 switch(av->codec_type) {
3802 case AVMEDIA_TYPE_AUDIO:
3803 if (av->bit_rate == 0)
3804 av->bit_rate = 64000;
3805 if (av->sample_rate == 0)
3806 av->sample_rate = 22050;
3807 if (av->channels == 0)
3810 case AVMEDIA_TYPE_VIDEO:
3811 if (av->bit_rate == 0)
3812 av->bit_rate = 64000;
3813 if (av->time_base.num == 0){
3814 av->time_base.den = 5;
3815 av->time_base.num = 1;
3817 if (av->width == 0 || av->height == 0) {
3821 /* Bitrate tolerance is less for streaming */
3822 if (av->bit_rate_tolerance == 0)
3823 av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
3824 (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
3829 if (av->max_qdiff == 0)
3831 av->qcompress = 0.5;
3834 if (!av->nsse_weight)
3835 av->nsse_weight = 8;
3837 av->frame_skip_cmp = FF_CMP_DCTMAX;
3839 av->me_method = ME_EPZS;
3840 av->rc_buffer_aggressivity = 1.0;
3843 av->rc_eq = "tex^qComp";
3844 if (!av->i_quant_factor)
3845 av->i_quant_factor = -0.8;
3846 if (!av->b_quant_factor)
3847 av->b_quant_factor = 1.25;
3848 if (!av->b_quant_offset)
3849 av->b_quant_offset = 1.25;
3850 if (!av->rc_max_rate)
3851 av->rc_max_rate = av->bit_rate * 2;
3853 if (av->rc_max_rate && !av->rc_buffer_size) {
3854 av->rc_buffer_size = av->rc_max_rate;
3863 st = av_mallocz(sizeof(AVStream));
3866 st->codec = avcodec_alloc_context3(NULL);
3867 stream->streams[stream->nb_streams++] = st;
3868 memcpy(st->codec, av, sizeof(AVCodecContext));
3871 static enum AVCodecID opt_audio_codec(const char *arg)
3873 AVCodec *p= avcodec_find_encoder_by_name(arg);
3875 if (p == NULL || p->type != AVMEDIA_TYPE_AUDIO)
3876 return AV_CODEC_ID_NONE;
3881 static enum AVCodecID opt_video_codec(const char *arg)
3883 AVCodec *p= avcodec_find_encoder_by_name(arg);
3885 if (p == NULL || p->type != AVMEDIA_TYPE_VIDEO)
3886 return AV_CODEC_ID_NONE;
3891 /* simplistic plugin support */
3894 static void load_module(const char *filename)
3897 void (*init_func)(void);
3898 dll = dlopen(filename, RTLD_NOW);
3900 fprintf(stderr, "Could not load module '%s' - %s\n",
3901 filename, dlerror());
3905 init_func = dlsym(dll, "avserver_module_init");
3908 "%s: init function 'avserver_module_init()' not found\n",
3917 static int avserver_opt_default(const char *opt, const char *arg,
3918 AVCodecContext *avctx, int type)
3921 const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);
3923 ret = av_opt_set(avctx, opt, arg, 0);
3927 static int avserver_opt_preset(const char *arg,
3928 AVCodecContext *avctx, int type,
3929 enum AVCodecID *audio_id, enum AVCodecID *video_id)
3932 char filename[1000], tmp[1000], tmp2[1000], line[1000];
3934 AVCodec *codec = avcodec_find_encoder(avctx->codec_id);
3936 if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
3937 codec ? codec->name : NULL))) {
3938 fprintf(stderr, "File for preset '%s' not found\n", arg);
3943 int e= fscanf(f, "%999[^\n]\n", line) - 1;
3944 if(line[0] == '#' && !e)
3946 e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
3948 fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
3952 if(!strcmp(tmp, "acodec")){
3953 *audio_id = opt_audio_codec(tmp2);
3954 }else if(!strcmp(tmp, "vcodec")){
3955 *video_id = opt_video_codec(tmp2);
3956 }else if(!strcmp(tmp, "scodec")){
3957 /* opt_subtitle_codec(tmp2); */
3958 }else if(avserver_opt_default(tmp, tmp2, avctx, type) < 0){
3959 fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
3970 static AVOutputFormat *avserver_guess_format(const char *short_name, const char *filename,
3971 const char *mime_type)
3973 AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
3976 AVOutputFormat *stream_fmt;
3977 char stream_format_name[64];
3979 snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);
3980 stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
3989 static void report_config_error(const char *filename, int line_num, int *errors, const char *fmt, ...)
3993 fprintf(stderr, "%s:%d: ", filename, line_num);
3994 vfprintf(stderr, fmt, vl);
4000 static int parse_ffconfig(const char *filename)
4007 int val, errors, line_num;
4008 FFStream **last_stream, *stream, *redirect;
4009 FFStream **last_feed, *feed, *s;
4010 AVCodecContext audio_enc, video_enc;
4011 enum AVCodecID audio_id, video_id;
4013 f = fopen(filename, "r");
4021 first_stream = NULL;
4022 last_stream = &first_stream;
4024 last_feed = &first_feed;
4028 audio_id = AV_CODEC_ID_NONE;
4029 video_id = AV_CODEC_ID_NONE;
4031 #define ERROR(...) report_config_error(filename, line_num, &errors, __VA_ARGS__)
4033 if (fgets(line, sizeof(line), f) == NULL)
4039 if (*p == '\0' || *p == '#')
4042 get_arg(cmd, sizeof(cmd), &p);
4044 if (!av_strcasecmp(cmd, "Port")) {
4045 get_arg(arg, sizeof(arg), &p);
4047 if (val < 1 || val > 65536) {
4048 ERROR("Invalid_port: %s\n", arg);
4050 my_http_addr.sin_port = htons(val);
4051 } else if (!av_strcasecmp(cmd, "BindAddress")) {
4052 get_arg(arg, sizeof(arg), &p);
4053 if (resolve_host(&my_http_addr.sin_addr, arg) != 0) {
4054 ERROR("%s:%d: Invalid host/IP address: %s\n", arg);
4056 } else if (!av_strcasecmp(cmd, "NoDaemon")) {
4057 avserver_daemon = 0;
4058 } else if (!av_strcasecmp(cmd, "RTSPPort")) {
4059 get_arg(arg, sizeof(arg), &p);
4061 if (val < 1 || val > 65536) {
4062 ERROR("%s:%d: Invalid port: %s\n", arg);
4064 my_rtsp_addr.sin_port = htons(atoi(arg));
4065 } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
4066 get_arg(arg, sizeof(arg), &p);
4067 if (resolve_host(&my_rtsp_addr.sin_addr, arg) != 0) {
4068 ERROR("Invalid host/IP address: %s\n", arg);
4070 } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
4071 get_arg(arg, sizeof(arg), &p);
4073 if (val < 1 || val > 65536) {
4074 ERROR("Invalid MaxHTTPConnections: %s\n", arg);
4076 nb_max_http_connections = val;
4077 } else if (!av_strcasecmp(cmd, "MaxClients")) {
4078 get_arg(arg, sizeof(arg), &p);
4080 if (val < 1 || val > nb_max_http_connections) {
4081 ERROR("Invalid MaxClients: %s\n", arg);
4083 nb_max_connections = val;
4085 } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
4087 get_arg(arg, sizeof(arg), &p);
4089 if (llval < 10 || llval > 10000000) {
4090 ERROR("Invalid MaxBandwidth: %s\n", arg);
4092 max_bandwidth = llval;
4093 } else if (!av_strcasecmp(cmd, "CustomLog")) {
4094 if (!avserver_debug)
4095 get_arg(logfilename, sizeof(logfilename), &p);
4096 } else if (!av_strcasecmp(cmd, "<Feed")) {
4097 /*********************************************/
4098 /* Feed related options */
4100 if (stream || feed) {
4101 ERROR("Already in a tag\n");
4103 feed = av_mallocz(sizeof(FFStream));
4104 get_arg(feed->filename, sizeof(feed->filename), &p);
4105 q = strrchr(feed->filename, '>');
4109 for (s = first_feed; s; s = s->next) {
4110 if (!strcmp(feed->filename, s->filename)) {
4111 ERROR("Feed '%s' already registered\n", s->filename);
4115 feed->fmt = av_guess_format("ffm", NULL, NULL);
4116 /* defaut feed file */
4117 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
4118 "/tmp/%s.ffm", feed->filename);
4119 feed->feed_max_size = 5 * 1024 * 1024;
4121 feed->feed = feed; /* self feeding :-) */
4123 /* add in stream list */
4124 *last_stream = feed;
4125 last_stream = &feed->next;
4126 /* add in feed list */
4128 last_feed = &feed->next_feed;
4130 } else if (!av_strcasecmp(cmd, "Launch")) {
4134 feed->child_argv = av_mallocz(64 * sizeof(char *));
4136 for (i = 0; i < 62; i++) {
4137 get_arg(arg, sizeof(arg), &p);
4141 feed->child_argv[i] = av_strdup(arg);
4144 feed->child_argv[i] = av_malloc(30 + strlen(feed->filename));
4146 snprintf(feed->child_argv[i], 30+strlen(feed->filename),
4148 (my_http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :
4149 inet_ntoa(my_http_addr.sin_addr),
4150 ntohs(my_http_addr.sin_port), feed->filename);
4152 } else if (!av_strcasecmp(cmd, "ReadOnlyFile")) {
4154 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4156 } else if (stream) {
4157 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4159 } else if (!av_strcasecmp(cmd, "File")) {
4161 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
4163 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4164 } else if (!av_strcasecmp(cmd, "Truncate")) {
4166 get_arg(arg, sizeof(arg), &p);
4167 feed->truncate = strtod(arg, NULL);
4169 } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
4174 get_arg(arg, sizeof(arg), &p);
4176 fsize = strtod(p1, &p1);
4177 switch(toupper(*p1)) {
4182 fsize *= 1024 * 1024;
4185 fsize *= 1024 * 1024 * 1024;
4188 feed->feed_max_size = (int64_t)fsize;
4189 if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
4190 ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);
4193 } else if (!av_strcasecmp(cmd, "</Feed>")) {
4195 ERROR("No corresponding <Feed> for </Feed>\n");
4198 } else if (!av_strcasecmp(cmd, "<Stream")) {
4199 /*********************************************/
4200 /* Stream related options */
4202 if (stream || feed) {
4203 ERROR("Already in a tag\n");
4206 stream = av_mallocz(sizeof(FFStream));
4207 get_arg(stream->filename, sizeof(stream->filename), &p);
4208 q = strrchr(stream->filename, '>');
4212 for (s = first_stream; s; s = s->next) {
4213 if (!strcmp(stream->filename, s->filename)) {
4214 ERROR("Stream '%s' already registered\n", s->filename);
4218 stream->fmt = avserver_guess_format(NULL, stream->filename, NULL);
4219 avcodec_get_context_defaults3(&video_enc, NULL);
4220 avcodec_get_context_defaults3(&audio_enc, NULL);
4221 audio_id = AV_CODEC_ID_NONE;
4222 video_id = AV_CODEC_ID_NONE;
4224 audio_id = stream->fmt->audio_codec;
4225 video_id = stream->fmt->video_codec;
4228 *last_stream = stream;
4229 last_stream = &stream->next;
4231 } else if (!av_strcasecmp(cmd, "Feed")) {
4232 get_arg(arg, sizeof(arg), &p);
4237 while (sfeed != NULL) {
4238 if (!strcmp(sfeed->filename, arg))
4240 sfeed = sfeed->next_feed;
4243 ERROR("feed '%s' not defined\n", arg);
4245 stream->feed = sfeed;
4247 } else if (!av_strcasecmp(cmd, "Format")) {
4248 get_arg(arg, sizeof(arg), &p);
4250 if (!strcmp(arg, "status")) {
4251 stream->stream_type = STREAM_TYPE_STATUS;
4254 stream->stream_type = STREAM_TYPE_LIVE;
4255 /* jpeg cannot be used here, so use single frame jpeg */
4256 if (!strcmp(arg, "jpeg"))
4257 strcpy(arg, "mjpeg");
4258 stream->fmt = avserver_guess_format(arg, NULL, NULL);
4260 ERROR("Unknown Format: %s\n", arg);
4264 audio_id = stream->fmt->audio_codec;
4265 video_id = stream->fmt->video_codec;
4268 } else if (!av_strcasecmp(cmd, "InputFormat")) {
4269 get_arg(arg, sizeof(arg), &p);
4271 stream->ifmt = av_find_input_format(arg);
4272 if (!stream->ifmt) {
4273 ERROR("Unknown input format: %s\n", arg);
4276 } else if (!av_strcasecmp(cmd, "FaviconURL")) {
4277 if (stream && stream->stream_type == STREAM_TYPE_STATUS) {
4278 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
4280 ERROR("FaviconURL only permitted for status streams\n");
4282 } else if (!av_strcasecmp(cmd, "Author")) {
4284 get_arg(stream->author, sizeof(stream->author), &p);
4285 } else if (!av_strcasecmp(cmd, "Comment")) {
4287 get_arg(stream->comment, sizeof(stream->comment), &p);
4288 } else if (!av_strcasecmp(cmd, "Copyright")) {
4290 get_arg(stream->copyright, sizeof(stream->copyright), &p);
4291 } else if (!av_strcasecmp(cmd, "Title")) {
4293 get_arg(stream->title, sizeof(stream->title), &p);
4294 } else if (!av_strcasecmp(cmd, "Preroll")) {
4295 get_arg(arg, sizeof(arg), &p);
4297 stream->prebuffer = atof(arg) * 1000;
4298 } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
4300 stream->send_on_key = 1;
4301 } else if (!av_strcasecmp(cmd, "AudioCodec")) {
4302 get_arg(arg, sizeof(arg), &p);
4303 audio_id = opt_audio_codec(arg);
4304 if (audio_id == AV_CODEC_ID_NONE) {
4305 ERROR("Unknown AudioCodec: %s\n", arg);
4307 } else if (!av_strcasecmp(cmd, "VideoCodec")) {
4308 get_arg(arg, sizeof(arg), &p);
4309 video_id = opt_video_codec(arg);
4310 if (video_id == AV_CODEC_ID_NONE) {
4311 ERROR("Unknown VideoCodec: %s\n", arg);
4313 } else if (!av_strcasecmp(cmd, "MaxTime")) {
4314 get_arg(arg, sizeof(arg), &p);
4316 stream->max_time = atof(arg) * 1000;
4317 } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
4318 get_arg(arg, sizeof(arg), &p);
4320 audio_enc.bit_rate = lrintf(atof(arg) * 1000);
4321 } else if (!av_strcasecmp(cmd, "AudioChannels")) {
4322 get_arg(arg, sizeof(arg), &p);
4324 audio_enc.channels = atoi(arg);
4325 } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
4326 get_arg(arg, sizeof(arg), &p);
4328 audio_enc.sample_rate = atoi(arg);
4329 } else if (!av_strcasecmp(cmd, "AudioQuality")) {
4330 get_arg(arg, sizeof(arg), &p);
4332 // audio_enc.quality = atof(arg) * 1000;
4334 } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
4336 int minrate, maxrate;
4338 get_arg(arg, sizeof(arg), &p);
4340 if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
4341 video_enc.rc_min_rate = minrate * 1000;
4342 video_enc.rc_max_rate = maxrate * 1000;
4344 ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
4347 } else if (!av_strcasecmp(cmd, "Debug")) {
4349 get_arg(arg, sizeof(arg), &p);
4350 video_enc.debug = strtol(arg,0,0);
4352 } else if (!av_strcasecmp(cmd, "Strict")) {
4354 get_arg(arg, sizeof(arg), &p);
4355 video_enc.strict_std_compliance = atoi(arg);
4357 } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
4359 get_arg(arg, sizeof(arg), &p);
4360 video_enc.rc_buffer_size = atoi(arg) * 8*1024;
4362 } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
4364 get_arg(arg, sizeof(arg), &p);
4365 video_enc.bit_rate_tolerance = atoi(arg) * 1000;
4367 } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
4368 get_arg(arg, sizeof(arg), &p);
4370 video_enc.bit_rate = atoi(arg) * 1000;
4372 } else if (!av_strcasecmp(cmd, "VideoSize")) {
4373 get_arg(arg, sizeof(arg), &p);
4375 av_parse_video_size(&video_enc.width, &video_enc.height, arg);
4376 if ((video_enc.width % 16) != 0 ||
4377 (video_enc.height % 16) != 0) {
4378 ERROR("Image size must be a multiple of 16\n");
4381 } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
4382 get_arg(arg, sizeof(arg), &p);
4384 AVRational frame_rate;
4385 if (av_parse_video_rate(&frame_rate, arg) < 0) {
4386 ERROR("Incorrect frame rate: %s\n", arg);
4388 video_enc.time_base.num = frame_rate.den;
4389 video_enc.time_base.den = frame_rate.num;
4392 } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
4393 get_arg(arg, sizeof(arg), &p);
4395 video_enc.gop_size = atoi(arg);
4396 } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
4398 video_enc.gop_size = 1;
4399 } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
4401 video_enc.mb_decision = FF_MB_DECISION_BITS;
4402 } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
4404 video_enc.mb_decision = FF_MB_DECISION_BITS; //FIXME remove
4405 video_enc.flags |= CODEC_FLAG_4MV;
4407 } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
4408 !av_strcasecmp(cmd, "AVOptionAudio")) {
4410 AVCodecContext *avctx;
4412 get_arg(arg, sizeof(arg), &p);
4413 get_arg(arg2, sizeof(arg2), &p);
4414 if (!av_strcasecmp(cmd, "AVOptionVideo")) {
4416 type = AV_OPT_FLAG_VIDEO_PARAM;
4419 type = AV_OPT_FLAG_AUDIO_PARAM;
4421 if (avserver_opt_default(arg, arg2, avctx, type|AV_OPT_FLAG_ENCODING_PARAM)) {
4422 ERROR("AVOption error: %s %s\n", arg, arg2);
4424 } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
4425 !av_strcasecmp(cmd, "AVPresetAudio")) {
4426 AVCodecContext *avctx;
4428 get_arg(arg, sizeof(arg), &p);
4429 if (!av_strcasecmp(cmd, "AVPresetVideo")) {
4431 video_enc.codec_id = video_id;
4432 type = AV_OPT_FLAG_VIDEO_PARAM;
4435 audio_enc.codec_id = audio_id;
4436 type = AV_OPT_FLAG_AUDIO_PARAM;
4438 if (avserver_opt_preset(arg, avctx, type|AV_OPT_FLAG_ENCODING_PARAM, &audio_id, &video_id)) {
4439 ERROR("AVPreset error: %s\n", arg);
4441 } else if (!av_strcasecmp(cmd, "VideoTag")) {
4442 get_arg(arg, sizeof(arg), &p);
4443 if ((strlen(arg) == 4) && stream)
4444 video_enc.codec_tag = MKTAG(arg[0], arg[1], arg[2], arg[3]);
4445 } else if (!av_strcasecmp(cmd, "BitExact")) {
4447 video_enc.flags |= CODEC_FLAG_BITEXACT;
4448 } else if (!av_strcasecmp(cmd, "DctFastint")) {
4450 video_enc.dct_algo = FF_DCT_FASTINT;
4451 } else if (!av_strcasecmp(cmd, "IdctSimple")) {
4453 video_enc.idct_algo = FF_IDCT_SIMPLE;
4454 } else if (!av_strcasecmp(cmd, "Qscale")) {
4455 get_arg(arg, sizeof(arg), &p);
4457 video_enc.flags |= CODEC_FLAG_QSCALE;
4458 video_enc.global_quality = FF_QP2LAMBDA * atoi(arg);
4460 } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
4461 get_arg(arg, sizeof(arg), &p);
4463 video_enc.max_qdiff = atoi(arg);
4464 if (video_enc.max_qdiff < 1 || video_enc.max_qdiff > 31) {
4465 ERROR("VideoQDiff out of range\n");
4468 } else if (!av_strcasecmp(cmd, "VideoQMax")) {
4469 get_arg(arg, sizeof(arg), &p);
4471 video_enc.qmax = atoi(arg);
4472 if (video_enc.qmax < 1 || video_enc.qmax > 31) {
4473 ERROR("VideoQMax out of range\n");
4476 } else if (!av_strcasecmp(cmd, "VideoQMin")) {
4477 get_arg(arg, sizeof(arg), &p);
4479 video_enc.qmin = atoi(arg);
4480 if (video_enc.qmin < 1 || video_enc.qmin > 31) {
4481 ERROR("VideoQMin out of range\n");
4484 } else if (!av_strcasecmp(cmd, "LumaElim")) {
4485 get_arg(arg, sizeof(arg), &p);
4487 video_enc.luma_elim_threshold = atoi(arg);
4488 } else if (!av_strcasecmp(cmd, "ChromaElim")) {
4489 get_arg(arg, sizeof(arg), &p);
4491 video_enc.chroma_elim_threshold = atoi(arg);
4492 } else if (!av_strcasecmp(cmd, "LumiMask")) {
4493 get_arg(arg, sizeof(arg), &p);
4495 video_enc.lumi_masking = atof(arg);
4496 } else if (!av_strcasecmp(cmd, "DarkMask")) {
4497 get_arg(arg, sizeof(arg), &p);
4499 video_enc.dark_masking = atof(arg);
4500 } else if (!av_strcasecmp(cmd, "NoVideo")) {
4501 video_id = AV_CODEC_ID_NONE;
4502 } else if (!av_strcasecmp(cmd, "NoAudio")) {
4503 audio_id = AV_CODEC_ID_NONE;
4504 } else if (!av_strcasecmp(cmd, "ACL")) {
4505 parse_acl_row(stream, feed, NULL, p, filename, line_num);
4506 } else if (!av_strcasecmp(cmd, "DynamicACL")) {
4508 get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), &p);
4510 } else if (!av_strcasecmp(cmd, "RTSPOption")) {
4511 get_arg(arg, sizeof(arg), &p);
4513 av_freep(&stream->rtsp_option);
4514 stream->rtsp_option = av_strdup(arg);
4516 } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
4517 get_arg(arg, sizeof(arg), &p);
4519 if (resolve_host(&stream->multicast_ip, arg) != 0) {
4520 ERROR("Invalid host/IP address: %s\n", arg);
4522 stream->is_multicast = 1;
4523 stream->loop = 1; /* default is looping */
4525 } else if (!av_strcasecmp(cmd, "MulticastPort")) {
4526 get_arg(arg, sizeof(arg), &p);
4528 stream->multicast_port = atoi(arg);
4529 } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
4530 get_arg(arg, sizeof(arg), &p);
4532 stream->multicast_ttl = atoi(arg);
4533 } else if (!av_strcasecmp(cmd, "NoLoop")) {
4536 } else if (!av_strcasecmp(cmd, "</Stream>")) {
4538 ERROR("No corresponding <Stream> for </Stream>\n");
4540 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
4541 if (audio_id != AV_CODEC_ID_NONE) {
4542 audio_enc.codec_type = AVMEDIA_TYPE_AUDIO;
4543 audio_enc.codec_id = audio_id;
4544 add_codec(stream, &audio_enc);
4546 if (video_id != AV_CODEC_ID_NONE) {
4547 video_enc.codec_type = AVMEDIA_TYPE_VIDEO;
4548 video_enc.codec_id = video_id;
4549 add_codec(stream, &video_enc);
4554 } else if (!av_strcasecmp(cmd, "<Redirect")) {
4555 /*********************************************/
4557 if (stream || feed || redirect) {
4558 ERROR("Already in a tag\n");
4560 redirect = av_mallocz(sizeof(FFStream));
4561 *last_stream = redirect;
4562 last_stream = &redirect->next;
4564 get_arg(redirect->filename, sizeof(redirect->filename), &p);
4565 q = strrchr(redirect->filename, '>');
4568 redirect->stream_type = STREAM_TYPE_REDIRECT;
4570 } else if (!av_strcasecmp(cmd, "URL")) {
4572 get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), &p);
4573 } else if (!av_strcasecmp(cmd, "</Redirect>")) {
4575 ERROR("No corresponding <Redirect> for </Redirect>\n");
4577 if (!redirect->feed_filename[0]) {
4578 ERROR("No URL found for <Redirect>\n");
4582 } else if (!av_strcasecmp(cmd, "LoadModule")) {
4583 get_arg(arg, sizeof(arg), &p);
4587 ERROR("Module support not compiled into this version: '%s'\n", arg);
4590 ERROR("Incorrect keyword: '%s'\n", cmd);
4602 static void handle_child_exit(int sig)
4607 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
4610 for (feed = first_feed; feed; feed = feed->next) {
4611 if (feed->pid == pid) {
4612 int uptime = time(0) - feed->pid_start;
4615 fprintf(stderr, "%s: Pid %d exited with status %d after %d seconds\n", feed->filename, pid, status, uptime);
4618 /* Turn off any more restarts */
4619 feed->child_argv = 0;
4624 need_to_start_children = 1;
4627 static void opt_debug(void)
4630 avserver_daemon = 0;
4631 logfilename[0] = '-';
4634 void show_help_default(const char *opt, const char *arg)
4636 printf("usage: avserver [options]\n"
4637 "Hyper fast multi format Audio/Video streaming server\n");
4639 show_help_options(options, "Main options:", 0, 0, 0);
4642 static const OptionDef options[] = {
4643 #include "cmdutils_common_opts.h"
4644 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
4645 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
4646 { "f", HAS_ARG | OPT_STRING, {(void*)&config_filename }, "use configfile instead of /etc/avserver.conf", "configfile" },
4650 int main(int argc, char **argv)
4652 struct sigaction sigact = { { 0 } };
4654 parse_loglevel(argc, argv, options);
4656 avformat_network_init();
4660 my_program_name = argv[0];
4661 my_program_dir = getcwd(0, 0);
4662 avserver_daemon = 1;
4664 parse_options(NULL, argc, argv, options, NULL);
4666 unsetenv("http_proxy"); /* Kill the http_proxy */
4668 av_lfg_init(&random_state, av_get_random_seed());
4670 sigact.sa_handler = handle_child_exit;
4671 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4672 sigaction(SIGCHLD, &sigact, 0);
4674 if (parse_ffconfig(config_filename) < 0) {
4675 fprintf(stderr, "Incorrect config file - exiting.\n");
4679 /* open log file if needed */
4680 if (logfilename[0] != '\0') {
4681 if (!strcmp(logfilename, "-"))
4684 logfile = fopen(logfilename, "a");
4685 av_log_set_callback(http_av_log);
4688 build_file_streams();
4690 build_feed_streams();
4692 compute_bandwidth();
4694 /* put the process in background and detach it from its TTY */
4695 if (avserver_daemon) {
4702 } else if (pid > 0) {
4709 open("/dev/null", O_RDWR);
4710 if (strcmp(logfilename, "-") != 0) {
4720 signal(SIGPIPE, SIG_IGN);
4722 if (avserver_daemon)
4725 if (http_server() < 0) {
4726 http_log("Could not start server\n");