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 32768
67 #define PACKET_MAX_SIZE 16384
69 /* coef for exponential mean for bitrate estimation in statistics */
72 /* timeouts are in ms */
73 #define REQUEST_TIMEOUT (15 * 1000)
74 #define SYNC_TIMEOUT (10 * 1000)
76 /* context associated with one connection */
77 typedef struct HTTPContext {
79 int fd; /* socket file descriptor */
80 struct sockaddr_in from_addr; /* origin */
81 struct pollfd *poll_entry; /* used when polling */
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 */
96 UINT8 buffer[IOBUFFER_MAX_SIZE];
97 UINT8 pbuffer[PACKET_MAX_SIZE];
100 /* each generated stream is described here */
106 /* description of each stream of the ffserver.conf file */
107 typedef struct FFStream {
108 enum StreamType stream_type;
109 char filename[1024]; /* stream filename */
110 struct FFStream *feed;
113 AVStream *streams[MAX_STREAMS];
114 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
115 char feed_filename[1024]; /* file name of the feed storage, or
116 input file name for a stream */
117 struct FFStream *next;
119 int feed_opened; /* true if someone if writing to feed */
120 int is_feed; /* true if it is a feed */
121 INT64 feed_max_size; /* maximum storage size */
122 INT64 feed_write_index; /* current write position in feed (it wraps round) */
123 INT64 feed_size; /* current size of feed */
124 struct FFStream *next_feed;
127 typedef struct FeedData {
128 long long data_count;
129 float avg_frame_size; /* frame size averraged over last frames with exponential mean */
132 struct sockaddr_in my_addr;
133 char logfilename[1024];
134 HTTPContext *first_http_ctx;
135 FFStream *first_feed; /* contains only feeds */
136 FFStream *first_stream; /* contains all streams, including feeds */
138 static int handle_http(HTTPContext *c, long cur_time);
139 static int http_parse_request(HTTPContext *c);
140 static int http_send_data(HTTPContext *c);
141 static void compute_stats(HTTPContext *c);
142 static int open_input_stream(HTTPContext *c, const char *info);
143 static int http_start_receive_data(HTTPContext *c);
144 static int http_receive_data(HTTPContext *c);
146 int nb_max_connections;
149 static long gettime_ms(void)
153 gettimeofday(&tv,NULL);
154 return (long long)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
157 static FILE *logfile = NULL;
159 static void http_log(char *fmt, ...)
165 vfprintf(logfile, fmt, ap);
169 /* main loop of the http server */
170 static int http_server(struct sockaddr_in my_addr)
172 int server_fd, tmp, ret;
173 struct sockaddr_in from_addr;
174 struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 1], *poll_entry;
175 HTTPContext *c, **cp;
178 server_fd = socket(AF_INET,SOCK_STREAM,0);
185 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
187 if (bind (server_fd, (struct sockaddr *) &my_addr, sizeof (my_addr)) < 0) {
193 if (listen (server_fd, 5) < 0) {
199 http_log("ffserver started.\n");
201 fcntl(server_fd, F_SETFL, O_NONBLOCK);
202 first_http_ctx = NULL;
204 first_http_ctx = NULL;
206 poll_entry = poll_table;
207 poll_entry->fd = server_fd;
208 poll_entry->events = POLLIN;
211 /* wait for events on each HTTP handle */
217 case HTTPSTATE_WAIT_REQUEST:
218 c->poll_entry = poll_entry;
220 poll_entry->events = POLLIN;
223 case HTTPSTATE_SEND_HEADER:
224 case HTTPSTATE_SEND_DATA_HEADER:
225 case HTTPSTATE_SEND_DATA:
226 case HTTPSTATE_SEND_DATA_TRAILER:
227 c->poll_entry = poll_entry;
229 poll_entry->events = POLLOUT;
232 case HTTPSTATE_RECEIVE_DATA:
233 c->poll_entry = poll_entry;
235 poll_entry->events = POLLIN;
238 case HTTPSTATE_WAIT_FEED:
239 /* need to catch errors */
240 c->poll_entry = poll_entry;
242 poll_entry->events = 0;
246 c->poll_entry = NULL;
252 /* wait for an event on one connection. We poll at least every
253 second to handle timeouts */
255 ret = poll(poll_table, poll_entry - poll_table, 1000);
258 cur_time = gettime_ms();
260 /* now handle the events */
262 cp = &first_http_ctx;
263 while ((*cp) != NULL) {
265 if (handle_http (c, cur_time) < 0) {
266 /* close and free the connection */
269 av_close_input_file(c->fmt_in);
278 /* new connection request ? */
279 poll_entry = poll_table;
280 if (poll_entry->revents & POLLIN) {
283 len = sizeof(from_addr);
284 fd = accept(server_fd, (struct sockaddr *)&from_addr,
287 fcntl(fd, F_SETFL, O_NONBLOCK);
288 /* XXX: should output a warning page when coming
289 close to the connection limit */
290 if (nb_connections >= nb_max_connections) {
293 /* add a new connection */
294 c = av_mallocz(sizeof(HTTPContext));
295 c->next = first_http_ctx;
298 c->poll_entry = NULL;
299 c->from_addr = from_addr;
300 c->state = HTTPSTATE_WAIT_REQUEST;
301 c->buffer_ptr = c->buffer;
302 c->buffer_end = c->buffer + IOBUFFER_MAX_SIZE;
303 c->timeout = cur_time + REQUEST_TIMEOUT;
312 static int handle_http(HTTPContext *c, long cur_time)
317 case HTTPSTATE_WAIT_REQUEST:
319 if ((c->timeout - cur_time) < 0)
321 if (c->poll_entry->revents & (POLLERR | POLLHUP))
324 /* no need to read if no events */
325 if (!(c->poll_entry->revents & POLLIN))
328 len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
330 if (errno != EAGAIN && errno != EINTR)
332 } else if (len == 0) {
335 /* search for end of request. XXX: not fully correct since garbage could come after the end */
337 c->buffer_ptr += len;
339 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
340 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
341 /* request found : parse it and reply */
342 if (http_parse_request(c) < 0)
344 } else if (ptr >= c->buffer_end) {
345 /* request too long: cannot do anything */
351 case HTTPSTATE_SEND_HEADER:
352 if (c->poll_entry->revents & (POLLERR | POLLHUP))
355 /* no need to read if no events */
356 if (!(c->poll_entry->revents & POLLOUT))
358 len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
360 if (errno != EAGAIN && errno != EINTR) {
361 /* error : close connection */
365 c->buffer_ptr += len;
366 if (c->buffer_ptr >= c->buffer_end) {
370 /* all the buffer was send : synchronize to the incoming stream */
371 c->state = HTTPSTATE_SEND_DATA_HEADER;
372 c->buffer_ptr = c->buffer_end = c->buffer;
377 case HTTPSTATE_SEND_DATA:
378 case HTTPSTATE_SEND_DATA_HEADER:
379 case HTTPSTATE_SEND_DATA_TRAILER:
380 /* no need to read if no events */
381 if (c->poll_entry->revents & (POLLERR | POLLHUP))
384 if (!(c->poll_entry->revents & POLLOUT))
386 if (http_send_data(c) < 0)
389 case HTTPSTATE_RECEIVE_DATA:
390 /* no need to read if no events */
391 if (c->poll_entry->revents & (POLLERR | POLLHUP))
393 if (!(c->poll_entry->revents & POLLIN))
395 if (http_receive_data(c) < 0)
398 case HTTPSTATE_WAIT_FEED:
399 /* no need to read if no events */
400 if (c->poll_entry->revents & (POLLERR | POLLHUP))
403 /* nothing to do, we'll be waken up by incoming feed packets */
411 /* parse http request and prepare header */
412 static int http_parse_request(HTTPContext *c)
417 char info[1024], *filename;
421 const char *mime_type;
426 while (!isspace(*p) && *p != '\0') {
427 if ((q - cmd) < sizeof(cmd) - 1)
432 if (!strcmp(cmd, "GET"))
434 else if (!strcmp(cmd, "POST"))
439 while (isspace(*p)) p++;
441 while (!isspace(*p) && *p != '\0') {
442 if ((q - url) < sizeof(url) - 1)
448 while (isspace(*p)) p++;
450 while (!isspace(*p) && *p != '\0') {
451 if ((q - protocol) < sizeof(protocol) - 1)
456 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
459 /* find the filename and the optional info string in the request */
472 stream = first_stream;
473 while (stream != NULL) {
474 if (!strcmp(stream->filename, filename))
476 stream = stream->next;
478 if (stream == NULL) {
479 sprintf(msg, "File '%s' not found", url);
484 /* should do it after so that the size can be computed */
486 char buf1[32], buf2[32], *p;
488 /* XXX: reentrant function ? */
489 p = inet_ntoa(c->from_addr.sin_addr);
494 p = buf2 + strlen(p) - 1;
497 http_log("%s - - [%s] \"%s %s %s\" %d %d\n",
498 buf1, buf2, cmd, url, protocol, 200, 1024);
501 /* XXX: add there authenticate and IP match */
504 /* if post, it means a feed is being sent */
505 if (!stream->is_feed) {
506 sprintf(msg, "POST command not handled");
509 if (http_start_receive_data(c) < 0) {
510 sprintf(msg, "could not open feed");
514 c->state = HTTPSTATE_RECEIVE_DATA;
518 if (c->stream->stream_type == STREAM_TYPE_STATUS)
521 /* open input stream */
522 if (open_input_stream(c, info) < 0) {
523 sprintf(msg, "Input stream corresponding to '%s' not found", url);
527 /* prepare http header */
529 q += sprintf(q, "HTTP/1.0 200 OK\r\n");
530 mime_type = c->stream->fmt->mime_type;
532 mime_type = "application/x-octet_stream";
533 q += sprintf(q, "Pragma: no-cache\r\n");
535 /* for asf, we need extra headers */
536 if (!strcmp(c->stream->fmt->name,"asf")) {
537 q += sprintf(q, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=1234\r\nPragma: features=\"broadcast\"\r\n");
538 mime_type = "application/octet-stream";
540 q += sprintf(q, "Content-Type: %s\r\n", mime_type);
541 q += sprintf(q, "\r\n");
543 /* prepare output buffer */
545 c->buffer_ptr = c->buffer;
547 c->state = HTTPSTATE_SEND_HEADER;
552 q += sprintf(q, "HTTP/1.0 404 Not Found\r\n");
553 q += sprintf(q, "Content-type: %s\r\n", "text/html");
554 q += sprintf(q, "\r\n");
555 q += sprintf(q, "<HTML>\n");
556 q += sprintf(q, "<HEAD><TITLE>404 Not Found</TITLE></HEAD>\n");
557 q += sprintf(q, "<BODY>%s</BODY>\n", msg);
558 q += sprintf(q, "</HTML>\n");
560 /* prepare output buffer */
561 c->buffer_ptr = c->buffer;
563 c->state = HTTPSTATE_SEND_HEADER;
567 c->http_error = 200; /* horrible : we use this value to avoid
568 going to the send data state */
569 c->state = HTTPSTATE_SEND_HEADER;
573 static void compute_stats(HTTPContext *c)
582 q += sprintf(q, "HTTP/1.0 200 OK\r\n");
583 q += sprintf(q, "Content-type: %s\r\n", "text/html");
584 q += sprintf(q, "Pragma: no-cache\r\n");
585 q += sprintf(q, "\r\n");
587 q += sprintf(q, "<HEAD><TITLE>FFServer Status</TITLE></HEAD>\n<BODY>");
588 q += sprintf(q, "<H1>FFServer Status</H1>\n");
590 q += sprintf(q, "<H1>Available Streams</H1>\n");
591 q += sprintf(q, "<TABLE>\n");
592 q += sprintf(q, "<TR><TD>Path<TD>Format<TD>Bit rate (kbits/s)<TD>Video<TD>Audio<TD>Feed\n");
593 stream = first_stream;
594 while (stream != NULL) {
595 q += sprintf(q, "<TR><TD><A HREF=\"/%s\">%s</A> ",
596 stream->filename, stream->filename);
597 switch(stream->stream_type) {
598 case STREAM_TYPE_LIVE:
600 int audio_bit_rate = 0;
601 int video_bit_rate = 0;
603 for(i=0;i<stream->nb_streams;i++) {
604 AVStream *st = stream->streams[i];
605 switch(st->codec.codec_type) {
606 case CODEC_TYPE_AUDIO:
607 audio_bit_rate += st->codec.bit_rate;
609 case CODEC_TYPE_VIDEO:
610 video_bit_rate += st->codec.bit_rate;
616 q += sprintf(q, "<TD> %s <TD> %d <TD> %d <TD> %d",
618 (audio_bit_rate + video_bit_rate) / 1000,
619 video_bit_rate / 1000, audio_bit_rate / 1000);
621 q += sprintf(q, "<TD>%s", stream->feed->filename);
623 q += sprintf(q, "<TD>%s", stream->feed_filename);
625 q += sprintf(q, "\n");
629 q += sprintf(q, "<TD> - <TD> - <TD> - <TD> -\n");
632 stream = stream->next;
634 q += sprintf(q, "</TABLE>\n");
644 while (stream != NULL) {
645 q += sprintf(q, "<H1>Feed '%s'</H1>\n", stream->filename);
646 q += sprintf(q, "<TABLE>\n");
647 q += sprintf(q, "<TR><TD>Parameters<TD>Frame count<TD>Size<TD>Avg bitrate (kbits/s)\n");
648 for(i=0;i<stream->nb_streams;i++) {
649 AVStream *st = stream->streams[i];
650 FeedData *fdata = st->priv_data;
653 avcodec_string(buf, sizeof(buf), enc);
654 avg = fdata->avg_frame_size * (float)enc->rate * 8.0;
655 if (enc->codec->type == CODEC_TYPE_AUDIO && enc->frame_size > 0)
656 avg /= enc->frame_size;
657 q += sprintf(q, "<TR><TD>%s <TD> %d <TD> %Ld <TD> %0.1f\n",
658 buf, enc->frame_number, fdata->data_count, avg / 1000.0);
660 q += sprintf(q, "</TABLE>\n");
661 stream = stream->next_feed;
666 /* connection status */
667 q += sprintf(q, "<H1>Connection Status</H1>\n");
669 q += sprintf(q, "Number of connections: %d / %d<BR>\n",
670 nb_connections, nb_max_connections);
672 q += sprintf(q, "<TABLE>\n");
673 q += sprintf(q, "<TR><TD>#<TD>File<TD>IP<TD>State<TD>Size\n");
678 p = inet_ntoa(c1->from_addr.sin_addr);
679 q += sprintf(q, "<TR><TD><B>%d</B><TD>%s%s <TD> %s <TD> %s <TD> %Ld\n",
680 i, c1->stream->filename,
681 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
683 http_state[c1->state],
687 q += sprintf(q, "</TABLE>\n");
692 q += sprintf(q, "<HR>Generated at %s", p);
693 q += sprintf(q, "</BODY>\n</HTML>\n");
695 c->buffer_ptr = c->buffer;
700 static void http_write_packet(void *opaque,
701 unsigned char *buf, int size)
703 HTTPContext *c = opaque;
705 if (c->buffer_ptr == c->buffer_end || !c->buffer_ptr)
706 c->buffer_ptr = c->buffer_end = c->buffer;
708 if (c->buffer_end - c->buffer + size > IOBUFFER_MAX_SIZE)
711 memcpy(c->buffer_end, buf, size);
712 c->buffer_end += size;
715 static int open_input_stream(HTTPContext *c, const char *info)
718 char input_filename[1024];
724 if (c->stream->feed) {
725 strcpy(input_filename, c->stream->feed->feed_filename);
726 buf_size = FFM_PACKET_SIZE;
727 /* compute position (absolute time) */
728 if (find_info_tag(buf, sizeof(buf), "date", info)) {
729 stream_pos = parse_date(buf, 0);
730 } else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
731 int prebuffer = strtol(buf, 0, 10);
732 stream_pos = gettime() - prebuffer * 1000000;
734 stream_pos = gettime();
737 strcpy(input_filename, c->stream->feed_filename);
739 /* compute position (relative time) */
740 if (find_info_tag(buf, sizeof(buf), "date", info)) {
741 stream_pos = parse_date(buf, 1);
746 if (input_filename[0] == '\0')
750 s = av_open_input_file(input_filename, NULL, buf_size, NULL);
755 if (c->fmt_in->format->read_seek) {
756 c->fmt_in->format->read_seek(c->fmt_in, stream_pos);
759 // printf("stream %s opened pos=%0.6f\n", input_filename, stream_pos / 1000000.0);
763 static int http_prepare_data(HTTPContext *c)
768 case HTTPSTATE_SEND_DATA_HEADER:
769 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
770 if (c->stream->feed) {
771 /* open output stream by using specified codecs */
772 c->fmt_ctx.format = c->stream->fmt;
773 c->fmt_ctx.nb_streams = c->stream->nb_streams;
774 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
776 st = av_mallocz(sizeof(AVStream));
777 c->fmt_ctx.streams[i] = st;
778 if (c->stream->feed == c->stream)
779 memcpy(st, c->stream->streams[i], sizeof(AVStream));
781 memcpy(st, c->stream->feed->streams[c->stream->feed_streams[i]], sizeof(AVStream));
783 st->codec.frame_number = 0; /* XXX: should be done in
784 AVStream, not in codec */
785 c->got_key_frame[i] = 0;
788 /* open output stream by using codecs in specified file */
789 c->fmt_ctx.format = c->stream->fmt;
790 c->fmt_ctx.nb_streams = c->fmt_in->nb_streams;
791 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
793 st = av_mallocz(sizeof(AVStream));
794 c->fmt_ctx.streams[i] = st;
795 memcpy(st, c->fmt_in->streams[i], sizeof(AVStream));
796 st->codec.frame_number = 0; /* XXX: should be done in
797 AVStream, not in codec */
798 c->got_key_frame[i] = 0;
801 init_put_byte(&c->fmt_ctx.pb, c->pbuffer, PACKET_MAX_SIZE,
802 1, c, NULL, http_write_packet, NULL);
803 c->fmt_ctx.pb.is_streamed = 1;
805 c->fmt_ctx.format->write_header(&c->fmt_ctx);
806 c->state = HTTPSTATE_SEND_DATA;
807 c->last_packet_sent = 0;
809 case HTTPSTATE_SEND_DATA:
810 /* find a new packet */
812 fifo_total_size = http_fifo_write_count - c->last_http_fifo_write_count;
813 if (fifo_total_size >= ((3 * FIFO_MAX_SIZE) / 4)) {
814 /* overflow : resync. We suppose that wptr is at this
815 point a pointer to a valid packet */
816 c->rptr = http_fifo.wptr;
817 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
818 c->got_key_frame[i] = 0;
822 start_rptr = c->rptr;
823 if (fifo_read(&http_fifo, (UINT8 *)&hdr, sizeof(hdr), &c->rptr) < 0)
825 payload_size = ntohs(hdr.payload_size);
826 payload = malloc(payload_size);
827 if (fifo_read(&http_fifo, payload, payload_size, &c->rptr) < 0) {
828 /* cannot read all the payload */
830 c->rptr = start_rptr;
834 c->last_http_fifo_write_count = http_fifo_write_count -
835 fifo_size(&http_fifo, c->rptr);
837 if (c->stream->stream_type != STREAM_TYPE_MASTER) {
838 /* test if the packet can be handled by this format */
840 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
841 AVStream *st = c->fmt_ctx.streams[i];
842 if (test_header(&hdr, &st->codec)) {
843 /* only begin sending when got a key frame */
844 if (st->codec.key_frame)
845 c->got_key_frame[i] = 1;
846 if (c->got_key_frame[i]) {
847 ret = c->fmt_ctx.format->write_packet(&c->fmt_ctx, i,
848 payload, payload_size);
854 /* must send trailer now */
855 c->state = HTTPSTATE_SEND_DATA_TRAILER;
858 /* master case : send everything */
861 memcpy(q, &hdr, sizeof(hdr));
863 memcpy(q, payload, payload_size);
865 c->buffer_ptr = c->buffer;
873 /* read a packet from the input stream */
874 if (c->stream->feed) {
875 ffm_set_write_index(c->fmt_in,
876 c->stream->feed->feed_write_index,
877 c->stream->feed->feed_size);
879 if (av_read_packet(c->fmt_in, &pkt) < 0) {
880 if (c->stream->feed && c->stream->feed->feed_opened) {
881 /* if coming from feed, it means we reached the end of the
882 ffm file, so must wait for more data */
883 c->state = HTTPSTATE_WAIT_FEED;
884 return 1; /* state changed */
886 /* must send trailer now because eof or error */
887 c->state = HTTPSTATE_SEND_DATA_TRAILER;
890 /* send it to the appropriate stream */
891 if (c->stream->feed) {
892 /* if coming from a feed, select the right stream */
893 for(i=0;i<c->stream->nb_streams;i++) {
894 if (c->stream->feed_streams[i] == pkt.stream_index) {
895 pkt.stream_index = i;
900 AVCodecContext *codec;
903 codec = &c->fmt_ctx.streams[pkt.stream_index]->codec;
905 codec->key_frame = ((pkt.flags & PKT_FLAG_KEY) != 0);
908 if (codec->codec_type == CODEC_TYPE_AUDIO) {
909 codec->frame_size = (codec->sample_rate * pkt.duration + 500000) / 1000000;
910 /* printf("Calculated size %d, from sr %d, duration %d\n", codec->frame_size, codec->sample_rate, pkt.duration); */
914 if (av_write_packet(&c->fmt_ctx, &pkt, 0))
915 c->state = HTTPSTATE_SEND_DATA_TRAILER;
917 codec->frame_number++;
920 av_free_packet(&pkt);
925 case HTTPSTATE_SEND_DATA_TRAILER:
926 /* last packet test ? */
927 if (c->last_packet_sent)
930 c->fmt_ctx.format->write_trailer(&c->fmt_ctx);
931 c->last_packet_sent = 1;
937 /* should convert the format at the same time */
938 static int http_send_data(HTTPContext *c)
942 while (c->buffer_ptr >= c->buffer_end) {
943 ret = http_prepare_data(c);
949 /* state change requested */
954 if (c->buffer_end > c->buffer_ptr) {
955 len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
957 if (errno != EAGAIN && errno != EINTR) {
958 /* error : close connection */
962 c->buffer_ptr += len;
963 c->data_count += len;
969 static int http_start_receive_data(HTTPContext *c)
973 if (c->stream->feed_opened)
977 fd = open(c->stream->feed_filename, O_RDWR);
982 c->stream->feed_write_index = ffm_read_write_index(fd);
983 c->stream->feed_size = lseek(fd, 0, SEEK_END);
984 lseek(fd, 0, SEEK_SET);
986 /* init buffer input */
987 c->buffer_ptr = c->buffer;
988 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
989 c->stream->feed_opened = 1;
993 static int http_receive_data(HTTPContext *c)
998 if (c->buffer_ptr >= c->buffer_end) {
999 FFStream *feed = c->stream;
1000 /* a packet has been received : write it in the store, except
1002 if (c->data_count > FFM_PACKET_SIZE) {
1004 // printf("writing pos=0x%Lx size=0x%Lx\n", feed->feed_write_index, feed->feed_size);
1005 /* XXX: use llseek or url_seek */
1006 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
1007 write(c->feed_fd, c->buffer, FFM_PACKET_SIZE);
1009 feed->feed_write_index += FFM_PACKET_SIZE;
1010 /* update file size */
1011 if (feed->feed_write_index > c->stream->feed_size)
1012 feed->feed_size = feed->feed_write_index;
1014 /* handle wrap around if max file size reached */
1015 if (feed->feed_write_index >= c->stream->feed_max_size)
1016 feed->feed_write_index = FFM_PACKET_SIZE;
1019 ffm_write_write_index(c->feed_fd, feed->feed_write_index);
1021 /* wake up any waiting connections */
1022 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
1023 if (c1->state == HTTPSTATE_WAIT_FEED &&
1024 c1->stream->feed == c->stream->feed) {
1025 c1->state = HTTPSTATE_SEND_DATA;
1029 /* We have a header in our hands that contains useful data */
1031 ByteIOContext *pb = &s.pb;
1034 memset(&s, 0, sizeof(s));
1036 url_open_buf(pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
1037 pb->buf_end = c->buffer_end; /* ?? */
1038 pb->is_streamed = 1;
1040 if (feed->fmt->read_header(&s, 0) < 0) {
1044 /* Now we have the actual streams */
1045 if (s.nb_streams != feed->nb_streams) {
1048 for (i = 0; i < s.nb_streams; i++) {
1049 memcpy(&feed->streams[i]->codec, &s.streams[i]->codec, sizeof(AVCodecContext));
1052 c->buffer_ptr = c->buffer;
1055 len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
1057 if (errno != EAGAIN && errno != EINTR) {
1058 /* error : close connection */
1061 } else if (len == 0) {
1062 /* end of connection : close it */
1065 c->buffer_ptr += len;
1066 c->data_count += len;
1070 c->stream->feed_opened = 0;
1075 /* return the stream number in the feed */
1076 int add_av_stream(FFStream *feed,
1080 AVCodecContext *av, *av1;
1084 for(i=0;i<feed->nb_streams;i++) {
1085 st = feed->streams[i];
1087 if (av1->codec_id == av->codec_id &&
1088 av1->codec_type == av->codec_type &&
1089 av1->bit_rate == av->bit_rate) {
1091 switch(av->codec_type) {
1092 case CODEC_TYPE_AUDIO:
1093 if (av1->channels == av->channels &&
1094 av1->sample_rate == av->sample_rate)
1097 case CODEC_TYPE_VIDEO:
1098 if (av1->width == av->width &&
1099 av1->height == av->height &&
1100 av1->frame_rate == av->frame_rate &&
1101 av1->gop_size == av->gop_size)
1110 fst = av_mallocz(sizeof(AVStream));
1113 fst->priv_data = av_mallocz(sizeof(FeedData));
1114 memcpy(&fst->codec, av, sizeof(AVCodecContext));
1115 feed->streams[feed->nb_streams++] = fst;
1116 return feed->nb_streams - 1;
1121 /* compute the needed AVStream for each feed */
1122 void build_feed_streams(void)
1124 FFStream *stream, *feed;
1127 /* gather all streams */
1128 for(stream = first_stream; stream != NULL; stream = stream->next) {
1129 feed = stream->feed;
1131 if (!stream->is_feed) {
1132 for(i=0;i<stream->nb_streams;i++) {
1133 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
1136 for(i=0;i<stream->nb_streams;i++) {
1137 stream->feed_streams[i] = i;
1143 /* create feed files if needed */
1144 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
1147 if (!url_exist(feed->feed_filename)) {
1148 AVFormatContext s1, *s = &s1;
1150 /* only write the header of the ffm file */
1151 if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
1152 fprintf(stderr, "Could not open output feed file '%s'\n",
1153 feed->feed_filename);
1156 s->format = feed->fmt;
1157 s->nb_streams = feed->nb_streams;
1158 for(i=0;i<s->nb_streams;i++) {
1160 st = feed->streams[i];
1163 s->format->write_header(s);
1167 /* get feed size and write index */
1168 fd = open(feed->feed_filename, O_RDONLY);
1170 fprintf(stderr, "Could not open output feed file '%s'\n",
1171 feed->feed_filename);
1175 feed->feed_write_index = ffm_read_write_index(fd);
1176 feed->feed_size = lseek(fd, 0, SEEK_END);
1177 /* ensure that we do not wrap before the end of file */
1178 if (feed->feed_max_size < feed->feed_size)
1179 feed->feed_max_size = feed->feed_size;
1185 static void get_arg(char *buf, int buf_size, const char **pp)
1192 while (isspace(*p)) p++;
1195 if (*p == '\"' || *p == '\'')
1207 if ((q - buf) < buf_size - 1)
1212 if (quote && *p == quote)
1217 /* add a codec and set the default parameters */
1218 void add_codec(FFStream *stream, AVCodecContext *av)
1222 /* compute default parameters */
1223 switch(av->codec_type) {
1224 case CODEC_TYPE_AUDIO:
1225 if (av->bit_rate == 0)
1226 av->bit_rate = 64000;
1227 if (av->sample_rate == 0)
1228 av->sample_rate = 22050;
1229 if (av->channels == 0)
1232 case CODEC_TYPE_VIDEO:
1233 if (av->bit_rate == 0)
1234 av->bit_rate = 64000;
1235 if (av->frame_rate == 0)
1236 av->frame_rate = 5 * FRAME_RATE_BASE;
1237 if (av->width == 0 || av->height == 0) {
1241 av->bit_rate_tolerance= 128000;
1253 st = av_mallocz(sizeof(AVStream));
1256 stream->streams[stream->nb_streams++] = st;
1257 memcpy(&st->codec, av, sizeof(AVCodecContext));
1260 int opt_audio_codec(const char *arg)
1266 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_AUDIO)
1271 return CODEC_ID_NONE;
1277 int opt_video_codec(const char *arg)
1283 if (!strcmp(p->name, arg) && p->type == CODEC_TYPE_VIDEO)
1288 return CODEC_ID_NONE;
1294 int parse_ffconfig(const char *filename)
1301 int val, errors, line_num;
1302 FFStream **last_stream, *stream;
1303 FFStream **last_feed, *feed;
1304 AVCodecContext audio_enc, video_enc;
1305 int audio_id, video_id;
1307 f = fopen(filename, "r");
1315 first_stream = NULL;
1316 last_stream = &first_stream;
1318 last_feed = &first_feed;
1321 audio_id = CODEC_ID_NONE;
1322 video_id = CODEC_ID_NONE;
1324 if (fgets(line, sizeof(line), f) == NULL)
1330 if (*p == '\0' || *p == '#')
1333 get_arg(cmd, sizeof(cmd), &p);
1335 if (!strcasecmp(cmd, "Port")) {
1336 get_arg(arg, sizeof(arg), &p);
1337 my_addr.sin_port = htons (atoi(arg));
1338 } else if (!strcasecmp(cmd, "BindAddress")) {
1339 get_arg(arg, sizeof(arg), &p);
1340 if (!inet_aton(arg, &my_addr.sin_addr)) {
1341 fprintf(stderr, "%s:%d: Invalid IP address: %s\n",
1342 filename, line_num, arg);
1345 } else if (!strcasecmp(cmd, "MaxClients")) {
1346 get_arg(arg, sizeof(arg), &p);
1348 if (val < 1 || val > HTTP_MAX_CONNECTIONS) {
1349 fprintf(stderr, "%s:%d: Invalid MaxClients: %s\n",
1350 filename, line_num, arg);
1353 nb_max_connections = val;
1355 } else if (!strcasecmp(cmd, "CustomLog")) {
1356 get_arg(logfilename, sizeof(logfilename), &p);
1357 } else if (!strcasecmp(cmd, "<Feed")) {
1358 /*********************************************/
1359 /* Feed related options */
1361 if (stream || feed) {
1362 fprintf(stderr, "%s:%d: Already in a tag\n",
1363 filename, line_num);
1365 feed = av_mallocz(sizeof(FFStream));
1366 /* add in stream list */
1367 *last_stream = feed;
1368 last_stream = &feed->next;
1369 /* add in feed list */
1371 last_feed = &feed->next_feed;
1373 get_arg(feed->filename, sizeof(feed->filename), &p);
1374 q = strrchr(feed->filename, '>');
1377 feed->fmt = guess_format("ffm", NULL, NULL);
1378 /* defaut feed file */
1379 snprintf(feed->feed_filename, sizeof(feed->feed_filename),
1380 "/tmp/%s.ffm", feed->filename);
1381 feed->feed_max_size = 5 * 1024 * 1024;
1383 feed->feed = feed; /* self feeding :-) */
1385 } else if (!strcasecmp(cmd, "File")) {
1387 get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
1388 } else if (stream) {
1389 get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
1391 } else if (!strcasecmp(cmd, "FileMaxSize")) {
1396 get_arg(arg, sizeof(arg), &p);
1398 fsize = strtod(p1, (char **)&p1);
1399 switch(toupper(*p1)) {
1404 fsize *= 1024 * 1024;
1407 fsize *= 1024 * 1024 * 1024;
1410 feed->feed_max_size = (INT64)fsize;
1412 } else if (!strcasecmp(cmd, "</Feed>")) {
1414 fprintf(stderr, "%s:%d: No corresponding <Feed> for </Feed>\n",
1415 filename, line_num);
1418 /* Make sure that we start out clean */
1419 unlink(feed->feed_filename);
1422 } else if (!strcasecmp(cmd, "<Stream")) {
1423 /*********************************************/
1424 /* Stream related options */
1426 if (stream || feed) {
1427 fprintf(stderr, "%s:%d: Already in a tag\n",
1428 filename, line_num);
1430 stream = av_mallocz(sizeof(FFStream));
1431 *last_stream = stream;
1432 last_stream = &stream->next;
1434 get_arg(stream->filename, sizeof(stream->filename), &p);
1435 q = strrchr(stream->filename, '>');
1438 stream->fmt = guess_format(NULL, stream->filename, NULL);
1439 memset(&audio_enc, 0, sizeof(AVCodecContext));
1440 memset(&video_enc, 0, sizeof(AVCodecContext));
1441 audio_id = CODEC_ID_NONE;
1442 video_id = CODEC_ID_NONE;
1444 audio_id = stream->fmt->audio_codec;
1445 video_id = stream->fmt->video_codec;
1448 } else if (!strcasecmp(cmd, "Feed")) {
1449 get_arg(arg, sizeof(arg), &p);
1454 while (sfeed != NULL) {
1455 if (!strcmp(sfeed->filename, arg))
1457 sfeed = sfeed->next_feed;
1460 fprintf(stderr, "%s:%d: feed '%s' not defined\n",
1461 filename, line_num, arg);
1463 stream->feed = sfeed;
1466 } else if (!strcasecmp(cmd, "Format")) {
1467 get_arg(arg, sizeof(arg), &p);
1468 if (!strcmp(arg, "status")) {
1469 stream->stream_type = STREAM_TYPE_STATUS;
1472 stream->stream_type = STREAM_TYPE_LIVE;
1473 /* jpeg cannot be used here, so use single frame jpeg */
1474 if (!strcmp(arg, "jpeg"))
1475 strcpy(arg, "singlejpeg");
1476 stream->fmt = guess_format(arg, NULL, NULL);
1478 fprintf(stderr, "%s:%d: Unknown Format: %s\n",
1479 filename, line_num, arg);
1484 audio_id = stream->fmt->audio_codec;
1485 video_id = stream->fmt->video_codec;
1487 } else if (!strcasecmp(cmd, "AudioCodec")) {
1488 get_arg(arg, sizeof(arg), &p);
1489 audio_id = opt_audio_codec(arg);
1490 if (audio_id == CODEC_ID_NONE) {
1491 fprintf(stderr, "%s:%d: Unknown AudioCodec: %s\n",
1492 filename, line_num, arg);
1495 } else if (!strcasecmp(cmd, "VideoCodec")) {
1496 get_arg(arg, sizeof(arg), &p);
1497 video_id = opt_video_codec(arg);
1498 if (video_id == CODEC_ID_NONE) {
1499 fprintf(stderr, "%s:%d: Unknown VideoCodec: %s\n",
1500 filename, line_num, arg);
1503 } else if (!strcasecmp(cmd, "AudioBitRate")) {
1504 get_arg(arg, sizeof(arg), &p);
1506 audio_enc.bit_rate = atoi(arg) * 1000;
1508 } else if (!strcasecmp(cmd, "AudioChannels")) {
1509 get_arg(arg, sizeof(arg), &p);
1511 audio_enc.channels = atoi(arg);
1513 } else if (!strcasecmp(cmd, "AudioSampleRate")) {
1514 get_arg(arg, sizeof(arg), &p);
1516 audio_enc.sample_rate = atoi(arg);
1518 } else if (!strcasecmp(cmd, "VideoBitRate")) {
1519 get_arg(arg, sizeof(arg), &p);
1521 video_enc.bit_rate = atoi(arg) * 1000;
1523 } else if (!strcasecmp(cmd, "VideoSize")) {
1524 get_arg(arg, sizeof(arg), &p);
1526 parse_image_size(&video_enc.width, &video_enc.height, arg);
1527 if ((video_enc.width % 16) != 0 ||
1528 (video_enc.height % 16) != 0) {
1529 fprintf(stderr, "%s:%d: Image size must be a multiple of 16\n",
1530 filename, line_num);
1534 } else if (!strcasecmp(cmd, "VideoFrameRate")) {
1535 get_arg(arg, sizeof(arg), &p);
1537 video_enc.frame_rate = (int)(strtod(arg, NULL) * FRAME_RATE_BASE);
1539 } else if (!strcasecmp(cmd, "VideoGopSize")) {
1540 get_arg(arg, sizeof(arg), &p);
1542 video_enc.gop_size = atoi(arg);
1544 } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
1546 video_enc.gop_size = 1;
1548 } else if (!strcasecmp(cmd, "NoVideo")) {
1549 video_id = CODEC_ID_NONE;
1550 } else if (!strcasecmp(cmd, "NoAudio")) {
1551 audio_id = CODEC_ID_NONE;
1552 } else if (!strcasecmp(cmd, "</Stream>")) {
1554 fprintf(stderr, "%s:%d: No corresponding <Stream> for </Stream>\n",
1555 filename, line_num);
1558 if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
1559 if (audio_id != CODEC_ID_NONE) {
1560 audio_enc.codec_type = CODEC_TYPE_AUDIO;
1561 audio_enc.codec_id = audio_id;
1562 add_codec(stream, &audio_enc);
1564 if (video_id != CODEC_ID_NONE) {
1565 video_enc.codec_type = CODEC_TYPE_VIDEO;
1566 video_enc.codec_id = video_id;
1567 add_codec(stream, &video_enc);
1572 fprintf(stderr, "%s:%d: Incorrect keyword: '%s'\n",
1573 filename, line_num, cmd);
1586 void *http_server_thread(void *arg)
1588 http_server(my_addr);
1593 static void write_packet(FFCodec *ffenc,
1594 UINT8 *buf, int size)
1597 AVCodecContext *enc = &ffenc->enc;
1599 mk_header(&hdr, enc, size);
1600 wptr = http_fifo.wptr;
1601 fifo_write(&http_fifo, (UINT8 *)&hdr, sizeof(hdr), &wptr);
1602 fifo_write(&http_fifo, buf, size, &wptr);
1603 /* atomic modification of wptr */
1604 http_fifo.wptr = wptr;
1605 ffenc->data_count += size;
1606 ffenc->avg_frame_size = ffenc->avg_frame_size * AVG_COEF + size * (1.0 - AVG_COEF);
1612 printf("ffserver version " FFMPEG_VERSION ", Copyright (c) 2000,2001 Gerard Lantau\n"
1613 "usage: ffserver [-L] [-h] [-f configfile]\n"
1614 "Hyper fast multi format Audio/Video streaming server\n"
1616 "-L : print the LICENCE\n"
1618 "-f configfile : use configfile instead of /etc/ffserver.conf\n"
1625 "ffserver version " FFMPEG_VERSION "\n"
1626 "Copyright (c) 2000,2001 Gerard Lantau\n"
1627 "This program is free software; you can redistribute it and/or modify\n"
1628 "it under the terms of the GNU General Public License as published by\n"
1629 "the Free Software Foundation; either version 2 of the License, or\n"
1630 "(at your option) any later version.\n"
1632 "This program is distributed in the hope that it will be useful,\n"
1633 "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
1634 "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n"
1635 "GNU General Public License for more details.\n"
1637 "You should have received a copy of the GNU General Public License\n"
1638 "along with this program; if not, write to the Free Software\n"
1639 "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
1643 int main(int argc, char **argv)
1645 const char *config_filename;
1650 config_filename = "/etc/ffserver.conf";
1653 c = getopt_long_only(argc, argv, "Lh?f:", NULL, NULL);
1665 config_filename = optarg;
1672 /* address on which the server will handle connections */
1673 my_addr.sin_family = AF_INET;
1674 my_addr.sin_port = htons (8080);
1675 my_addr.sin_addr.s_addr = htonl (INADDR_ANY);
1676 nb_max_connections = 5;
1677 first_stream = NULL;
1678 logfilename[0] = '\0';
1680 if (parse_ffconfig(config_filename) < 0) {
1681 fprintf(stderr, "Incorrect config file - exiting.\n");
1685 build_feed_streams();
1688 signal(SIGPIPE, SIG_IGN);
1690 /* open log file if needed */
1691 if (logfilename[0] != '\0') {
1692 if (!strcmp(logfilename, "-"))
1695 logfile = fopen(logfilename, "w");
1698 if (http_server(my_addr) < 0) {
1699 fprintf(stderr, "Could start http server\n");