2 * Multiple format streaming server
3 * Copyright (c) 2000,2001 Gerard Lantau.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include <netinet/in.h>
26 #include <sys/ioctl.h>
32 #include <sys/types.h>
33 #include <sys/socket.h>
34 #include <arpa/inet.h>
40 #include "bswap.h" // needed for the bitstream writer in common.h which is included in avformat.h
43 /* maximum number of simultaneous HTTP connections */
44 #define HTTP_MAX_CONNECTIONS 2000
47 HTTPSTATE_WAIT_REQUEST,
48 HTTPSTATE_SEND_HEADER,
49 HTTPSTATE_SEND_DATA_HEADER,
51 HTTPSTATE_SEND_DATA_TRAILER,
52 HTTPSTATE_RECEIVE_DATA,
56 const char *http_state[] = {
66 #define IOBUFFER_MAX_SIZE 16384
68 /* coef for exponential mean for bitrate estimation in statistics */
71 /* timeouts are in ms */
72 #define REQUEST_TIMEOUT (15 * 1000)
73 #define SYNC_TIMEOUT (10 * 1000)
75 /* context associated with one connection */
76 typedef struct HTTPContext {
78 int fd; /* socket file descriptor */
79 struct sockaddr_in from_addr; /* origin */
80 struct pollfd *poll_entry; /* used when polling */
82 UINT8 buffer[IOBUFFER_MAX_SIZE];
83 UINT8 *buffer_ptr, *buffer_end;
85 struct HTTPContext *next;
86 int got_key_frame[MAX_STREAMS]; /* for each type */
90 /* input format handling */
91 AVFormatContext *fmt_in;
92 /* output format handling */
93 struct FFStream *stream;
94 AVFormatContext fmt_ctx;
95 int last_packet_sent; /* true if last data packet was sent */
98 /* each generated stream is described here */
104 /* description of each stream of the ffserver.conf file */
105 typedef struct FFStream {
106 enum StreamType stream_type;
107 char filename[1024]; /* stream filename */
108 struct FFStream *feed;
111 AVStream *streams[MAX_STREAMS];
112 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
113 char feed_filename[1024]; /* file name of the feed storage, or
114 input file name for a stream */
115 struct FFStream *next;
117 int feed_opened; /* true if someone if writing to feed */
118 int is_feed; /* true if it is a feed */
119 INT64 feed_max_size; /* maximum storage size */
120 INT64 feed_write_index; /* current write position in feed (it wraps round) */
121 INT64 feed_size; /* current size of feed */
122 struct FFStream *next_feed;
125 typedef struct FeedData {
126 long long data_count;
127 float avg_frame_size; /* frame size averraged over last frames with exponential mean */
130 struct sockaddr_in my_addr;
131 char logfilename[1024];
132 HTTPContext *first_http_ctx;
133 FFStream *first_feed; /* contains only feeds */
134 FFStream *first_stream; /* contains all streams, including feeds */
136 static int handle_http(HTTPContext *c, long cur_time);
137 static int http_parse_request(HTTPContext *c);
138 static int http_send_data(HTTPContext *c);
139 static void compute_stats(HTTPContext *c);
140 static int open_input_stream(HTTPContext *c, const char *info);
141 static int http_start_receive_data(HTTPContext *c);
142 static int http_receive_data(HTTPContext *c);
144 int nb_max_connections;
147 static long gettime_ms(void)
151 gettimeofday(&tv,NULL);
152 return (long long)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
155 static FILE *logfile = NULL;
157 static void http_log(char *fmt, ...)
163 vfprintf(logfile, fmt, ap);
167 /* main loop of the http server */
168 static int http_server(struct sockaddr_in my_addr)
170 int server_fd, tmp, ret;
171 struct sockaddr_in from_addr;
172 struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 1], *poll_entry;
173 HTTPContext *c, **cp;
176 server_fd = socket(AF_INET,SOCK_STREAM,0);
183 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
185 if (bind (server_fd, (struct sockaddr *) &my_addr, sizeof (my_addr)) < 0) {
191 if (listen (server_fd, 5) < 0) {
197 http_log("ffserver started.\n");
199 fcntl(server_fd, F_SETFL, O_NONBLOCK);
200 first_http_ctx = NULL;
202 first_http_ctx = NULL;
204 poll_entry = poll_table;
205 poll_entry->fd = server_fd;
206 poll_entry->events = POLLIN;
209 /* wait for events on each HTTP handle */
215 case HTTPSTATE_WAIT_REQUEST:
216 c->poll_entry = poll_entry;
218 poll_entry->events = POLLIN;
221 case HTTPSTATE_SEND_HEADER:
222 case HTTPSTATE_SEND_DATA_HEADER:
223 case HTTPSTATE_SEND_DATA:
224 case HTTPSTATE_SEND_DATA_TRAILER:
225 c->poll_entry = poll_entry;
227 poll_entry->events = POLLOUT;
230 case HTTPSTATE_RECEIVE_DATA:
231 c->poll_entry = poll_entry;
233 poll_entry->events = POLLIN;
236 case HTTPSTATE_WAIT_FEED:
237 /* need to catch errors */
238 c->poll_entry = poll_entry;
240 poll_entry->events = 0;
244 c->poll_entry = NULL;
250 /* wait for an event on one connection. We poll at least every
251 second to handle timeouts */
253 ret = poll(poll_table, poll_entry - poll_table, 1000);
256 cur_time = gettime_ms();
258 /* now handle the events */
260 cp = &first_http_ctx;
261 while ((*cp) != NULL) {
263 if (handle_http (c, cur_time) < 0) {
264 /* close and free the connection */
267 av_close_input_file(c->fmt_in);
276 /* new connection request ? */
277 poll_entry = poll_table;
278 if (poll_entry->revents & POLLIN) {
281 len = sizeof(from_addr);
282 fd = accept(server_fd, (struct sockaddr *)&from_addr,
285 fcntl(fd, F_SETFL, O_NONBLOCK);
286 /* XXX: should output a warning page when coming
287 close to the connection limit */
288 if (nb_connections >= nb_max_connections) {
291 /* add a new connection */
292 c = av_mallocz(sizeof(HTTPContext));
293 c->next = first_http_ctx;
296 c->poll_entry = NULL;
297 c->from_addr = from_addr;
298 c->state = HTTPSTATE_WAIT_REQUEST;
299 c->buffer_ptr = c->buffer;
300 c->buffer_end = c->buffer + IOBUFFER_MAX_SIZE;
301 c->timeout = cur_time + REQUEST_TIMEOUT;
310 static int handle_http(HTTPContext *c, long cur_time)
315 case HTTPSTATE_WAIT_REQUEST:
317 if ((c->timeout - cur_time) < 0)
319 if (c->poll_entry->revents & (POLLERR | POLLHUP))
322 /* no need to read if no events */
323 if (!(c->poll_entry->revents & POLLIN))
326 len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
328 if (errno != EAGAIN && errno != EINTR)
330 } else if (len == 0) {
333 /* search for end of request. XXX: not fully correct since garbage could come after the end */
335 c->buffer_ptr += len;
337 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
338 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
339 /* request found : parse it and reply */
340 if (http_parse_request(c) < 0)
342 } else if (ptr >= c->buffer_end) {
343 /* request too long: cannot do anything */
349 case HTTPSTATE_SEND_HEADER:
350 if (c->poll_entry->revents & (POLLERR | POLLHUP))
353 /* no need to read if no events */
354 if (!(c->poll_entry->revents & POLLOUT))
356 len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
358 if (errno != EAGAIN && errno != EINTR) {
359 /* error : close connection */
363 c->buffer_ptr += len;
364 if (c->buffer_ptr >= c->buffer_end) {
368 /* all the buffer was send : synchronize to the incoming stream */
369 c->state = HTTPSTATE_SEND_DATA_HEADER;
370 c->buffer_ptr = c->buffer_end = c->buffer;
375 case HTTPSTATE_SEND_DATA:
376 case HTTPSTATE_SEND_DATA_HEADER:
377 case HTTPSTATE_SEND_DATA_TRAILER:
378 /* no need to read if no events */
379 if (c->poll_entry->revents & (POLLERR | POLLHUP))
382 if (!(c->poll_entry->revents & POLLOUT))
384 if (http_send_data(c) < 0)
387 case HTTPSTATE_RECEIVE_DATA:
388 /* no need to read if no events */
389 if (c->poll_entry->revents & (POLLERR | POLLHUP))
391 if (!(c->poll_entry->revents & POLLIN))
393 if (http_receive_data(c) < 0)
396 case HTTPSTATE_WAIT_FEED:
397 /* no need to read if no events */
398 if (c->poll_entry->revents & (POLLERR | POLLHUP))
401 /* nothing to do, we'll be waken up by incoming feed packets */
409 /* parse http request and prepare header */
410 static int http_parse_request(HTTPContext *c)
415 char info[1024], *filename;
419 const char *mime_type;
424 while (!isspace(*p) && *p != '\0') {
425 if ((q - cmd) < sizeof(cmd) - 1)
430 if (!strcmp(cmd, "GET"))
432 else if (!strcmp(cmd, "POST"))
437 while (isspace(*p)) p++;
439 while (!isspace(*p) && *p != '\0') {
440 if ((q - url) < sizeof(url) - 1)
446 while (isspace(*p)) p++;
448 while (!isspace(*p) && *p != '\0') {
449 if ((q - protocol) < sizeof(protocol) - 1)
454 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
457 /* find the filename and the optional info string in the request */
470 stream = first_stream;
471 while (stream != NULL) {
472 if (!strcmp(stream->filename, filename))
474 stream = stream->next;
476 if (stream == NULL) {
477 sprintf(msg, "File '%s' not found", url);
482 /* should do it after so that the size can be computed */
484 char buf1[32], buf2[32], *p;
486 /* XXX: reentrant function ? */
487 p = inet_ntoa(c->from_addr.sin_addr);
492 p = buf2 + strlen(p) - 1;
495 http_log("%s - - [%s] \"%s %s %s\" %d %d\n",
496 buf1, buf2, cmd, url, protocol, 200, 1024);
499 /* XXX: add there authenticate and IP match */
502 /* if post, it means a feed is being sent */
503 if (!stream->is_feed) {
504 sprintf(msg, "POST command not handled");
507 if (http_start_receive_data(c) < 0) {
508 sprintf(msg, "could not open feed");
512 c->state = HTTPSTATE_RECEIVE_DATA;
516 if (c->stream->stream_type == STREAM_TYPE_STATUS)
519 /* open input stream */
520 if (open_input_stream(c, info) < 0) {
521 sprintf(msg, "Input stream corresponding to '%s' not found", url);
525 /* prepare http header */
527 q += sprintf(q, "HTTP/1.0 200 OK\r\n");
528 mime_type = c->stream->fmt->mime_type;
530 mime_type = "application/x-octet_stream";
531 q += sprintf(q, "Content-type: %s\r\n", mime_type);
532 q += sprintf(q, "Pragma: no-cache\r\n");
534 /* for asf, we need extra headers */
535 if (!strcmp(c->stream->fmt->name,"asf")) {
536 q += sprintf(q, "Pragma: features=broadcast\r\n");
538 q += sprintf(q, "\r\n");
540 /* prepare output buffer */
542 c->buffer_ptr = c->buffer;
544 c->state = HTTPSTATE_SEND_HEADER;
549 q += sprintf(q, "HTTP/1.0 404 Not Found\r\n");
550 q += sprintf(q, "Content-type: %s\r\n", "text/html");
551 q += sprintf(q, "\r\n");
552 q += sprintf(q, "<HTML>\n");
553 q += sprintf(q, "<HEAD><TITLE>404 Not Found</TITLE></HEAD>\n");
554 q += sprintf(q, "<BODY>%s</BODY>\n", msg);
555 q += sprintf(q, "</HTML>\n");
557 /* prepare output buffer */
558 c->buffer_ptr = c->buffer;
560 c->state = HTTPSTATE_SEND_HEADER;
564 c->http_error = 200; /* horrible : we use this value to avoid
565 going to the send data state */
566 c->state = HTTPSTATE_SEND_HEADER;
570 static void compute_stats(HTTPContext *c)
579 q += sprintf(q, "HTTP/1.0 200 OK\r\n");
580 q += sprintf(q, "Content-type: %s\r\n", "text/html");
581 q += sprintf(q, "Pragma: no-cache\r\n");
582 q += sprintf(q, "\r\n");
584 q += sprintf(q, "<HEAD><TITLE>FFServer Status</TITLE></HEAD>\n<BODY>");
585 q += sprintf(q, "<H1>FFServer Status</H1>\n");
587 q += sprintf(q, "<H1>Available Streams</H1>\n");
588 q += sprintf(q, "<TABLE>\n");
589 q += sprintf(q, "<TR><TD>Path<TD>Format<TD>Bit rate (kbits/s)<TD>Video<TD>Audio<TD>Feed\n");
590 stream = first_stream;
591 while (stream != NULL) {
592 q += sprintf(q, "<TR><TD><A HREF=\"/%s\">%s</A> ",
593 stream->filename, stream->filename);
594 switch(stream->stream_type) {
595 case STREAM_TYPE_LIVE:
597 int audio_bit_rate = 0;
598 int video_bit_rate = 0;
600 for(i=0;i<stream->nb_streams;i++) {
601 AVStream *st = stream->streams[i];
602 switch(st->codec.codec_type) {
603 case CODEC_TYPE_AUDIO:
604 audio_bit_rate += st->codec.bit_rate;
606 case CODEC_TYPE_VIDEO:
607 video_bit_rate += st->codec.bit_rate;
611 q += sprintf(q, "<TD> %s <TD> %d <TD> %d <TD> %d",
613 (audio_bit_rate + video_bit_rate) / 1000,
614 video_bit_rate / 1000, audio_bit_rate / 1000);
616 q += sprintf(q, "<TD>%s", stream->feed->filename);
618 q += sprintf(q, "<TD>%s", stream->feed_filename);
620 q += sprintf(q, "\n");
624 q += sprintf(q, "<TD> - <TD> - <TD> - <TD> -\n");
627 stream = stream->next;
629 q += sprintf(q, "</TABLE>\n");
639 while (stream != NULL) {
640 q += sprintf(q, "<H1>Feed '%s'</H1>\n", stream->filename);
641 q += sprintf(q, "<TABLE>\n");
642 q += sprintf(q, "<TR><TD>Parameters<TD>Frame count<TD>Size<TD>Avg bitrate (kbits/s)\n");
643 for(i=0;i<stream->nb_streams;i++) {
644 AVStream *st = stream->streams[i];
645 FeedData *fdata = st->priv_data;
648 avcodec_string(buf, sizeof(buf), enc);
649 avg = fdata->avg_frame_size * (float)enc->rate * 8.0;
650 if (enc->codec->type == CODEC_TYPE_AUDIO && enc->frame_size > 0)
651 avg /= enc->frame_size;
652 q += sprintf(q, "<TR><TD>%s <TD> %d <TD> %Ld <TD> %0.1f\n",
653 buf, enc->frame_number, fdata->data_count, avg / 1000.0);
655 q += sprintf(q, "</TABLE>\n");
656 stream = stream->next_feed;
661 /* connection status */
662 q += sprintf(q, "<H1>Connection Status</H1>\n");
664 q += sprintf(q, "Number of connections: %d / %d<BR>\n",
665 nb_connections, nb_max_connections);
667 q += sprintf(q, "<TABLE>\n");
668 q += sprintf(q, "<TR><TD>#<TD>File<TD>IP<TD>State<TD>Size\n");
673 p = inet_ntoa(c1->from_addr.sin_addr);
674 q += sprintf(q, "<TR><TD><B>%d</B><TD>%s%s <TD> %s <TD> %s <TD> %Ld\n",
675 i, c1->stream->filename,
676 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
678 http_state[c1->state],
682 q += sprintf(q, "</TABLE>\n");
687 q += sprintf(q, "<HR>Generated at %s", p);
688 q += sprintf(q, "</BODY>\n</HTML>\n");
690 c->buffer_ptr = c->buffer;
695 static void http_write_packet(void *opaque,
696 unsigned char *buf, int size)
698 HTTPContext *c = opaque;
699 if (size > IOBUFFER_MAX_SIZE)
701 memcpy(c->buffer, buf, size);
702 c->buffer_ptr = c->buffer;
703 c->buffer_end = c->buffer + size;
706 static int open_input_stream(HTTPContext *c, const char *info)
709 char input_filename[1024];
715 if (c->stream->feed) {
716 strcpy(input_filename, c->stream->feed->feed_filename);
717 buf_size = FFM_PACKET_SIZE;
718 /* compute position (absolute time) */
719 if (find_info_tag(buf, sizeof(buf), "date", info)) {
720 stream_pos = parse_date(buf, 0);
722 stream_pos = gettime();
725 strcpy(input_filename, c->stream->feed_filename);
727 /* compute position (relative time) */
728 if (find_info_tag(buf, sizeof(buf), "date", info)) {
729 stream_pos = parse_date(buf, 1);
734 if (input_filename[0] == '\0')
738 s = av_open_input_file(input_filename, NULL, buf_size, NULL);
743 if (c->fmt_in->format->read_seek) {
744 c->fmt_in->format->read_seek(c->fmt_in, stream_pos);
747 // printf("stream %s opened pos=%0.6f\n", input_filename, stream_pos / 1000000.0);
751 static int http_prepare_data(HTTPContext *c)
756 case HTTPSTATE_SEND_DATA_HEADER:
757 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
758 if (c->stream->feed) {
759 /* open output stream by using specified codecs */
760 c->fmt_ctx.format = c->stream->fmt;
761 c->fmt_ctx.nb_streams = c->stream->nb_streams;
762 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
764 st = av_mallocz(sizeof(AVStream));
765 c->fmt_ctx.streams[i] = st;
766 memcpy(st, c->stream->streams[i], sizeof(AVStream));
767 st->codec.frame_number = 0; /* XXX: should be done in
768 AVStream, not in codec */
769 c->got_key_frame[i] = 0;
772 /* open output stream by using codecs in specified file */
773 c->fmt_ctx.format = c->stream->fmt;
774 c->fmt_ctx.nb_streams = c->fmt_in->nb_streams;
775 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
777 st = av_mallocz(sizeof(AVStream));
778 c->fmt_ctx.streams[i] = st;
779 memcpy(st, c->fmt_in->streams[i], sizeof(AVStream));
780 st->codec.frame_number = 0; /* XXX: should be done in
781 AVStream, not in codec */
782 c->got_key_frame[i] = 0;
785 init_put_byte(&c->fmt_ctx.pb, c->buffer, IOBUFFER_MAX_SIZE,
786 1, c, NULL, http_write_packet, NULL);
787 c->fmt_ctx.pb.is_streamed = 1;
789 c->fmt_ctx.format->write_header(&c->fmt_ctx);
790 c->state = HTTPSTATE_SEND_DATA;
791 c->last_packet_sent = 0;
793 case HTTPSTATE_SEND_DATA:
794 /* find a new packet */
796 fifo_total_size = http_fifo_write_count - c->last_http_fifo_write_count;
797 if (fifo_total_size >= ((3 * FIFO_MAX_SIZE) / 4)) {
798 /* overflow : resync. We suppose that wptr is at this
799 point a pointer to a valid packet */
800 c->rptr = http_fifo.wptr;
801 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
802 c->got_key_frame[i] = 0;
806 start_rptr = c->rptr;
807 if (fifo_read(&http_fifo, (UINT8 *)&hdr, sizeof(hdr), &c->rptr) < 0)
809 payload_size = ntohs(hdr.payload_size);
810 payload = malloc(payload_size);
811 if (fifo_read(&http_fifo, payload, payload_size, &c->rptr) < 0) {
812 /* cannot read all the payload */
814 c->rptr = start_rptr;
818 c->last_http_fifo_write_count = http_fifo_write_count -
819 fifo_size(&http_fifo, c->rptr);
821 if (c->stream->stream_type != STREAM_TYPE_MASTER) {
822 /* test if the packet can be handled by this format */
824 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
825 AVStream *st = c->fmt_ctx.streams[i];
826 if (test_header(&hdr, &st->codec)) {
827 /* only begin sending when got a key frame */
828 if (st->codec.key_frame)
829 c->got_key_frame[i] = 1;
830 if (c->got_key_frame[i]) {
831 ret = c->fmt_ctx.format->write_packet(&c->fmt_ctx, i,
832 payload, payload_size);
838 /* must send trailer now */
839 c->state = HTTPSTATE_SEND_DATA_TRAILER;
842 /* master case : send everything */
845 memcpy(q, &hdr, sizeof(hdr));
847 memcpy(q, payload, payload_size);
849 c->buffer_ptr = c->buffer;
857 /* read a packet from the input stream */
858 if (c->stream->feed) {
859 ffm_set_write_index(c->fmt_in,
860 c->stream->feed->feed_write_index,
861 c->stream->feed->feed_size);
863 if (av_read_packet(c->fmt_in, &pkt) < 0) {
864 if (c->stream->feed && c->stream->feed->feed_opened) {
865 /* if coming from feed, it means we reached the end of the
866 ffm file, so must wait for more data */
867 c->state = HTTPSTATE_WAIT_FEED;
868 return 1; /* state changed */
870 /* must send trailer now because eof or error */
871 c->state = HTTPSTATE_SEND_DATA_TRAILER;
874 /* send it to the appropriate stream */
875 if (c->stream->feed) {
876 /* if coming from a feed, select the right stream */
877 for(i=0;i<c->stream->nb_streams;i++) {
878 if (c->stream->feed_streams[i] == pkt.stream_index) {
879 pkt.stream_index = i;
885 if (av_write_packet(&c->fmt_ctx, &pkt, 0))
886 c->state = HTTPSTATE_SEND_DATA_TRAILER;
889 av_free_packet(&pkt);
894 case HTTPSTATE_SEND_DATA_TRAILER:
895 /* last packet test ? */
896 if (c->last_packet_sent)
899 c->fmt_ctx.format->write_trailer(&c->fmt_ctx);
900 c->last_packet_sent = 1;
906 /* should convert the format at the same time */
907 static int http_send_data(HTTPContext *c)
911 while (c->buffer_ptr >= c->buffer_end) {
912 ret = http_prepare_data(c);
918 /* state change requested */
923 len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
925 if (errno != EAGAIN && errno != EINTR) {
926 /* error : close connection */
930 c->buffer_ptr += len;
931 c->data_count += len;
936 static int http_start_receive_data(HTTPContext *c)
940 if (c->stream->feed_opened)
944 fd = open(c->stream->feed_filename, O_RDWR);
949 c->stream->feed_write_index = ffm_read_write_index(fd);
950 c->stream->feed_size = lseek(fd, 0, SEEK_END);
951 lseek(fd, 0, SEEK_SET);
953 /* init buffer input */
954 c->buffer_ptr = c->buffer;
955 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
956 c->stream->feed_opened = 1;
960 static int http_receive_data(HTTPContext *c)
965 if (c->buffer_ptr >= c->buffer_end) {
966 /* a packet has been received : write it in the store, except
968 if (c->data_count > FFM_PACKET_SIZE) {
969 FFStream *feed = c->stream;
971 // printf("writing pos=0x%Lx size=0x%Lx\n", feed->feed_write_index, feed->feed_size);
972 /* XXX: use llseek or url_seek */
973 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
974 write(c->feed_fd, c->buffer, FFM_PACKET_SIZE);
976 feed->feed_write_index += FFM_PACKET_SIZE;
977 /* update file size */
978 if (feed->feed_write_index > c->stream->feed_size)
979 feed->feed_size = feed->feed_write_index;
981 /* handle wrap around if max file size reached */
982 if (feed->feed_write_index >= c->stream->feed_max_size)
983 feed->feed_write_index = FFM_PACKET_SIZE;
986 ffm_write_write_index(c->feed_fd, feed->feed_write_index);
988 /* wake up any waiting connections */
989 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
990 if (c1->state == HTTPSTATE_WAIT_FEED &&
991 c1->stream->feed == c->stream->feed) {
992 c1->state = HTTPSTATE_SEND_DATA;
996 c->buffer_ptr = c->buffer;
999 len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
1001 if (errno != EAGAIN && errno != EINTR) {
1002 /* error : close connection */
1005 } else if (len == 0) {
1006 /* end of connection : close it */
1009 c->buffer_ptr += len;
1010 c->data_count += len;
1014 c->stream->feed_opened = 0;
1019 /* return the stream number in the feed */
1020 int add_av_stream(FFStream *feed,
1024 AVCodecContext *av, *av1;
1028 for(i=0;i<feed->nb_streams;i++) {
1029 st = feed->streams[i];
1031 if (av1->codec == av->codec &&
1032 av1->bit_rate == av->bit_rate) {
1034 switch(av->codec_type) {
1035 case CODEC_TYPE_AUDIO:
1036 if (av1->channels == av->channels &&
1037 av1->sample_rate == av->sample_rate)
1040 case CODEC_TYPE_VIDEO:
1041 if (av1->width == av->width &&
1042 av1->height == av->height &&
1043 av1->frame_rate == av->frame_rate &&
1044 av1->gop_size == av->gop_size)
1051 fst = av_mallocz(sizeof(AVStream));
1054 fst->priv_data = av_mallocz(sizeof(FeedData));
1055 memcpy(&fst->codec, av, sizeof(AVCodecContext));
1056 feed->streams[feed->nb_streams++] = fst;
1057 return feed->nb_streams - 1;
1062 /* compute the needed AVStream for each feed */
1063 void build_feed_streams(void)
1065 FFStream *stream, *feed;
1068 /* gather all streams */
1069 for(stream = first_stream; stream != NULL; stream = stream->next) {
1070 feed = stream->feed;
1072 if (!stream->is_feed) {
1073 for(i=0;i<stream->nb_streams;i++) {
1074 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
1077 for(i=0;i<stream->nb_streams;i++) {
1078 stream->feed_streams[i] = i;
1084 /* create feed files if needed */
1085 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
1088 if (!url_exist(feed->feed_filename)) {
1089 AVFormatContext s1, *s = &s1;
1091 /* only write the header of the ffm file */
1092 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
1093 fprintf(stderr, "Could not open output feed file '%s'\n",
1094 feed->feed_filename);
1097 s->format = feed->fmt;
1098 s->nb_streams = feed->nb_streams;
1099 for(i=0;i<s->nb_streams;i++) {
1101 st = feed->streams[i];
1104 s->format->write_header(s);
1108 /* get feed size and write index */
1109 fd = open(feed->feed_filename, O_RDONLY);
1111 fprintf(stderr, "Could not open output feed file '%s'\n",
1112 feed->feed_filename);
1116 feed->feed_write_index = ffm_read_write_index(fd);
1117 feed->feed_size = lseek(fd, 0, SEEK_END);
1118 /* ensure that we do not wrap before the end of file */
1119 if (feed->feed_max_size < feed->feed_size)
1120 feed->feed_max_size = feed->feed_size;
1126 static void get_arg(char *buf, int buf_size, const char **pp)
1133 while (isspace(*p)) p++;
1136 if (*p == '\"' || *p == '\'')
1148 if ((q - buf) < buf_size - 1)
1153 if (quote && *p == quote)
1158 /* add a codec and set the default parameters */
1159 void add_codec(FFStream *stream, AVCodecContext *av)
1163 /* compute default parameters */
1164 switch(av->codec_type) {
1165 case CODEC_TYPE_AUDIO:
1166 if (av->bit_rate == 0)
1167 av->bit_rate = 64000;
1168 if (av->sample_rate == 0)
1169 av->sample_rate = 22050;
1170 if (av->channels == 0)
1173 case CODEC_TYPE_VIDEO:
1174 if (av->bit_rate == 0)
1175 av->bit_rate = 64000;
1176 if (av->frame_rate == 0)
1177 av->frame_rate = 5 * FRAME_RATE_BASE;
1178 if (av->width == 0 || av->height == 0) {
1182 av->bit_rate_tolerance= 128000;
1192 st = av_mallocz(sizeof(AVStream));
1195 stream->streams[stream->nb_streams++] = st;
1196 memcpy(&st->codec, av, sizeof(AVCodecContext));
1199 int parse_ffconfig(const char *filename)
1206 int val, errors, line_num;
1207 FFStream **last_stream, *stream;
1208 FFStream **last_feed, *feed;
1209 AVCodecContext audio_enc, video_enc;
1210 int audio_id, video_id;
1212 f = fopen(filename, "r");
1220 first_stream = NULL;
1221 last_stream = &first_stream;
1223 last_feed = &first_feed;
1226 audio_id = CODEC_ID_NONE;
1227 video_id = CODEC_ID_NONE;
1229 if (fgets(line, sizeof(line), f) == NULL)
1235 if (*p == '\0' || *p == '#')
1238 get_arg(cmd, sizeof(cmd), &p);
1240 if (!strcasecmp(cmd, "Port")) {
1241 get_arg(arg, sizeof(arg), &p);
1242 my_addr.sin_port = htons (atoi(arg));
1243 } else if (!strcasecmp(cmd, "BindAddress")) {
1244 get_arg(arg, sizeof(arg), &p);
1245 if (!inet_aton(arg, &my_addr.sin_addr)) {
1246 fprintf(stderr, "%s:%d: Invalid IP address: %s\n",
1247 filename, line_num, arg);
1250 } else if (!strcasecmp(cmd, "MaxClients")) {
1251 get_arg(arg, sizeof(arg), &p);
1253 if (val < 1 || val > HTTP_MAX_CONNECTIONS) {
1254 fprintf(stderr, "%s:%d: Invalid MaxClients: %s\n",
1255 filename, line_num, arg);
1258 nb_max_connections = val;
1260 } else if (!strcasecmp(cmd, "CustomLog")) {
1261 get_arg(logfilename, sizeof(logfilename), &p);
1262 } else if (!strcasecmp(cmd, "<Feed")) {
1263 /*********************************************/
1264 /* Feed related options */
1266 if (stream || feed) {
1267 fprintf(stderr, "%s:%d: Already in a tag\n",
1268 filename, line_num);
1270 feed = av_mallocz(sizeof(FFStream));
1271 /* add in stream list */
1272 *last_stream = feed;
1273 last_stream = &feed->next;
1274 /* add in feed list */
1276 last_feed = &feed->next_feed;
1278 get_arg(feed->filename, sizeof(feed->filename), &p);
1279 q = strrchr(feed->filename, '>');
1282 feed->fmt = guess_format("ffm", NULL, NULL);
1283 /* defaut feed file */
1284 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
1285 "/tmp/%s.ffm", feed->filename);
1286 feed->feed_max_size = 5 * 1024 * 1024;
1288 feed->feed = feed; /* self feeding :-) */
1290 } else if (!strcasecmp(cmd, "File")) {
1292 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
1293 } else if (stream) {
1294 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
1296 } else if (!strcasecmp(cmd, "FileMaxSize")) {
1301 get_arg(arg, sizeof(arg), &p);
1303 fsize = strtod(p1, (char **)&p1);
1304 switch(toupper(*p1)) {
1309 fsize *= 1024 * 1024;
1312 fsize *= 1024 * 1024 * 1024;
1315 feed->feed_max_size = (INT64)fsize;
1317 } else if (!strcasecmp(cmd, "</Feed>")) {
1319 fprintf(stderr, "%s:%d: No corresponding <Feed> for </Feed>\n",
1320 filename, line_num);
1324 } else if (!strcasecmp(cmd, "<Stream")) {
1325 /*********************************************/
1326 /* Stream related options */
1328 if (stream || feed) {
1329 fprintf(stderr, "%s:%d: Already in a tag\n",
1330 filename, line_num);
1332 stream = av_mallocz(sizeof(FFStream));
1333 *last_stream = stream;
1334 last_stream = &stream->next;
1336 get_arg(stream->filename, sizeof(stream->filename), &p);
1337 q = strrchr(stream->filename, '>');
1340 stream->fmt = guess_format(NULL, stream->filename, NULL);
1341 memset(&audio_enc, 0, sizeof(AVCodecContext));
1342 memset(&video_enc, 0, sizeof(AVCodecContext));
1343 audio_id = CODEC_ID_NONE;
1344 video_id = CODEC_ID_NONE;
1346 audio_id = stream->fmt->audio_codec;
1347 video_id = stream->fmt->video_codec;
1350 } else if (!strcasecmp(cmd, "Feed")) {
1351 get_arg(arg, sizeof(arg), &p);
1356 while (sfeed != NULL) {
1357 if (!strcmp(sfeed->filename, arg))
1359 sfeed = sfeed->next_feed;
1362 fprintf(stderr, "%s:%d: feed '%s' not defined\n",
1363 filename, line_num, arg);
1365 stream->feed = sfeed;
1368 } else if (!strcasecmp(cmd, "Format")) {
1369 get_arg(arg, sizeof(arg), &p);
1370 if (!strcmp(arg, "status")) {
1371 stream->stream_type = STREAM_TYPE_STATUS;
1374 stream->stream_type = STREAM_TYPE_LIVE;
1375 /* jpeg cannot be used here, so use single frame jpeg */
1376 if (!strcmp(arg, "jpeg"))
1377 strcpy(arg, "singlejpeg");
1378 stream->fmt = guess_format(arg, NULL, NULL);
1380 fprintf(stderr, "%s:%d: Unknown Format: %s\n",
1381 filename, line_num, arg);
1386 audio_id = stream->fmt->audio_codec;
1387 video_id = stream->fmt->video_codec;
1389 } else if (!strcasecmp(cmd, "AudioBitRate")) {
1390 get_arg(arg, sizeof(arg), &p);
1392 audio_enc.bit_rate = atoi(arg) * 1000;
1394 } else if (!strcasecmp(cmd, "AudioChannels")) {
1395 get_arg(arg, sizeof(arg), &p);
1397 audio_enc.channels = atoi(arg);
1399 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
1400 get_arg(arg, sizeof(arg), &p);
1402 audio_enc.sample_rate = atoi(arg);
1404 } else if (!strcasecmp(cmd, "VideoBitRate")) {
1405 get_arg(arg, sizeof(arg), &p);
1407 video_enc.bit_rate = atoi(arg) * 1000;
1409 } else if (!strcasecmp(cmd, "VideoSize")) {
1410 get_arg(arg, sizeof(arg), &p);
1412 parse_image_size(&video_enc.width, &video_enc.height, arg);
1413 if ((video_enc.width % 16) != 0 ||
1414 (video_enc.height % 16) != 0) {
1415 fprintf(stderr, "%s:%d: Image size must be a multiple of 16\n",
1416 filename, line_num);
1420 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
1421 get_arg(arg, sizeof(arg), &p);
1423 video_enc.frame_rate = (int)(strtod(arg, NULL) * FRAME_RATE_BASE);
1425 } else if (!strcasecmp(cmd, "VideoGopSize")) {
1426 get_arg(arg, sizeof(arg), &p);
1428 video_enc.gop_size = atoi(arg);
1430 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
1432 video_enc.gop_size = 1;
1434 } else if (!strcasecmp(cmd, "NoVideo")) {
1435 video_id = CODEC_ID_NONE;
1436 } else if (!strcasecmp(cmd, "NoAudio")) {
1437 audio_id = CODEC_ID_NONE;
1438 } else if (!strcasecmp(cmd, "</Stream>")) {
1440 fprintf(stderr, "%s:%d: No corresponding <Stream> for </Stream>\n",
1441 filename, line_num);
1444 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
1445 if (audio_id != CODEC_ID_NONE) {
1446 audio_enc.codec_type = CODEC_TYPE_AUDIO;
1447 audio_enc.codec_id = audio_id;
1448 add_codec(stream, &audio_enc);
1450 if (video_id != CODEC_ID_NONE) {
1451 video_enc.codec_type = CODEC_TYPE_VIDEO;
1452 video_enc.codec_id = video_id;
1453 add_codec(stream, &video_enc);
1458 fprintf(stderr, "%s:%d: Incorrect keyword: '%s'\n",
1459 filename, line_num, cmd);
1472 void *http_server_thread(void *arg)
1474 http_server(my_addr);
1479 static void write_packet(FFCodec *ffenc,
1480 UINT8 *buf, int size)
1483 AVCodecContext *enc = &ffenc->enc;
1485 mk_header(&hdr, enc, size);
1486 wptr = http_fifo.wptr;
1487 fifo_write(&http_fifo, (UINT8 *)&hdr, sizeof(hdr), &wptr);
1488 fifo_write(&http_fifo, buf, size, &wptr);
1489 /* atomic modification of wptr */
1490 http_fifo.wptr = wptr;
1491 ffenc->data_count += size;
1492 ffenc->avg_frame_size = ffenc->avg_frame_size * AVG_COEF + size * (1.0 - AVG_COEF);
1498 printf("ffserver version " FFMPEG_VERSION ", Copyright (c) 2000,2001 Gerard Lantau\n"
1499 "usage: ffserver [-L] [-h] [-f configfile]\n"
1500 "Hyper fast multi format Audio/Video streaming server\n"
1502 "-L : print the LICENCE\n"
1504 "-f configfile : use configfile instead of /etc/ffserver.conf\n"
1511 "ffserver version " FFMPEG_VERSION "\n"
1512 "Copyright (c) 2000,2001 Gerard Lantau\n"
1513 "This program is free software; you can redistribute it and/or modify\n"
1514 "it under the terms of the GNU General Public License as published by\n"
1515 "the Free Software Foundation; either version 2 of the License, or\n"
1516 "(at your option) any later version.\n"
1518 "This program is distributed in the hope that it will be useful,\n"
1519 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1520 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1521 "GNU General Public License for more details.\n"
1523 "You should have received a copy of the GNU General Public License\n"
1524 "along with this program; if not, write to the Free Software\n"
1525 "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
1529 int main(int argc, char **argv)
1531 const char *config_filename;
1536 config_filename = "/etc/ffserver.conf";
1539 c = getopt_long_only(argc, argv, "Lh?f:", NULL, NULL);
1551 config_filename = optarg;
1558 /* address on which the server will handle connections */
1559 my_addr.sin_family = AF_INET;
1560 my_addr.sin_port = htons (8080);
1561 my_addr.sin_addr.s_addr = htonl (INADDR_ANY);
1562 nb_max_connections = 5;
1563 first_stream = NULL;
1564 logfilename[0] = '\0';
1566 if (parse_ffconfig(config_filename) < 0) {
1567 fprintf(stderr, "Incorrect config file - exiting.\n");
1571 build_feed_streams();
1574 signal(SIGPIPE, SIG_IGN);
1576 /* open log file if needed */
1577 if (logfilename[0] != '\0') {
1578 if (!strcmp(logfilename, "-"))
1581 logfile = fopen(logfilename, "w");
1584 if (http_server(my_addr) < 0) {
1585 fprintf(stderr, "Could start http server\n");