2 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * multiple format streaming server based on the FFmpeg libraries
28 #define closesocket close
33 #include "libavformat/avformat.h"
34 /* FIXME: those are internal headers, ffserver _really_ shouldn't use them */
35 #include "libavformat/ffm.h"
36 #include "libavformat/network.h"
37 #include "libavformat/os_support.h"
38 #include "libavformat/rtpdec.h"
39 #include "libavformat/rtpproto.h"
40 #include "libavformat/rtsp.h"
41 #include "libavformat/rtspcodes.h"
42 #include "libavformat/avio_internal.h"
43 #include "libavformat/internal.h"
44 #include "libavformat/url.h"
46 #include "libavutil/avassert.h"
47 #include "libavutil/avstring.h"
48 #include "libavutil/lfg.h"
49 #include "libavutil/dict.h"
50 #include "libavutil/intreadwrite.h"
51 #include "libavutil/mathematics.h"
52 #include "libavutil/random_seed.h"
53 #include "libavutil/parseutils.h"
54 #include "libavutil/opt.h"
55 #include "libavutil/time.h"
62 #include <sys/ioctl.h>
72 #include "ffserver_config.h"
74 #define PATH_LENGTH 1024
76 const char program_name[] = "ffserver";
77 const int program_birth_year = 2000;
79 static const OptionDef options[];
82 HTTPSTATE_WAIT_REQUEST,
83 HTTPSTATE_SEND_HEADER,
84 HTTPSTATE_SEND_DATA_HEADER,
85 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
86 HTTPSTATE_SEND_DATA_TRAILER,
87 HTTPSTATE_RECEIVE_DATA,
88 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
91 RTSPSTATE_WAIT_REQUEST,
93 RTSPSTATE_SEND_PACKET,
96 static const char * const http_state[] = {
112 #define IOBUFFER_INIT_SIZE 8192
114 /* timeouts are in ms */
115 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
116 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
118 #define SYNC_TIMEOUT (10 * 1000)
120 typedef struct RTSPActionServerSetup {
122 char transport_option[512];
123 } RTSPActionServerSetup;
126 int64_t count1, count2;
127 int64_t time1, time2;
130 /* context associated with one connection */
131 typedef struct HTTPContext {
132 enum HTTPState state;
133 int fd; /* socket file descriptor */
134 struct sockaddr_in from_addr; /* origin */
135 struct pollfd *poll_entry; /* used when polling */
137 uint8_t *buffer_ptr, *buffer_end;
140 int chunked_encoding;
141 int chunk_size; /* 0 if it needs to be read */
142 struct HTTPContext *next;
143 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
147 /* input format handling */
148 AVFormatContext *fmt_in;
149 int64_t start_time; /* In milliseconds - this wraps fairly often */
150 int64_t first_pts; /* initial pts value */
151 int64_t cur_pts; /* current pts value from the stream in us */
152 int64_t cur_frame_duration; /* duration of the current frame in us */
153 int cur_frame_bytes; /* output frame size, needed to compute
154 the time at which we send each
156 int pts_stream_index; /* stream we choose as clock reference */
157 int64_t cur_clock; /* current clock reference value in us */
158 /* output format handling */
159 struct FFServerStream *stream;
160 /* -1 is invalid stream */
161 int feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */
162 int switch_feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */
164 AVFormatContext fmt_ctx; /* instance of FFServerStream for one user */
165 int last_packet_sent; /* true if last data packet was sent */
167 DataRateData datarate;
174 int is_packetized; /* if true, the stream is packetized */
175 int packet_stream_index; /* current stream for output in state machine */
177 /* RTSP state specific */
178 uint8_t *pb_buffer; /* XXX: use that in all the code */
180 int seq; /* RTSP sequence number */
182 /* RTP state specific */
183 enum RTSPLowerTransport rtp_protocol;
184 char session_id[32]; /* session id */
185 AVFormatContext *rtp_ctx[FFSERVER_MAX_STREAMS];
187 /* RTP/UDP specific */
188 URLContext *rtp_handles[FFSERVER_MAX_STREAMS];
190 /* RTP/TCP specific */
191 struct HTTPContext *rtsp_c;
192 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
195 typedef struct FeedData {
196 long long data_count;
197 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
200 static HTTPContext *first_http_ctx;
202 static FFServerConfig config = {
203 .nb_max_http_connections = 2000,
204 .nb_max_connections = 5,
205 .max_bandwidth = 1000,
209 static void new_connection(int server_fd, int is_rtsp);
210 static void close_connection(HTTPContext *c);
213 static int handle_connection(HTTPContext *c);
214 static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream);
215 static void compute_status(HTTPContext *c);
216 static int open_input_stream(HTTPContext *c, const char *info);
217 static int http_parse_request(HTTPContext *c);
218 static int http_send_data(HTTPContext *c);
219 static int http_start_receive_data(HTTPContext *c);
220 static int http_receive_data(HTTPContext *c);
223 static int rtsp_parse_request(HTTPContext *c);
224 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
225 static void rtsp_cmd_options(HTTPContext *c, const char *url);
226 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
227 RTSPMessageHeader *h);
228 static void rtsp_cmd_play(HTTPContext *c, const char *url,
229 RTSPMessageHeader *h);
230 static void rtsp_cmd_interrupt(HTTPContext *c, const char *url,
231 RTSPMessageHeader *h, int pause_only);
234 static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer,
235 struct in_addr my_ip);
238 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
239 FFServerStream *stream,
240 const char *session_id,
241 enum RTSPLowerTransport rtp_protocol);
242 static int rtp_new_av_stream(HTTPContext *c,
243 int stream_index, struct sockaddr_in *dest_addr,
244 HTTPContext *rtsp_c);
246 static size_t htmlencode (const char *src, char **dest);
247 static inline void cp_html_entity (char *buffer, const char *entity);
248 static inline int check_codec_match(AVCodecContext *ccf, AVCodecContext *ccs,
251 static const char *my_program_name;
253 static int no_launch;
254 static int need_to_start_children;
256 /* maximum number of simultaneous HTTP connections */
257 static unsigned int nb_connections;
259 static uint64_t current_bandwidth;
261 /* Making this global saves on passing it around everywhere */
262 static int64_t cur_time;
264 static AVLFG random_state;
266 static FILE *logfile = NULL;
268 static inline void cp_html_entity (char *buffer, const char *entity) {
269 if (!buffer || !entity)
272 *buffer++ = *entity++;
276 * Substitutes known conflicting chars on a text string with
277 * their corresponding HTML entities.
279 * Returns the number of bytes in the 'encoded' representation
280 * not including the terminating NUL.
282 static size_t htmlencode (const char *src, char **dest) {
283 const char *amp = "&";
284 const char *lt = "<";
285 const char *gt = ">";
288 size_t final_size = 0;
295 /* Compute needed dest size */
296 while (*src != '\0') {
312 *dest = av_mallocz(final_size + 1);
318 while (*src != '\0') {
321 cp_html_entity (tmp, amp);
325 cp_html_entity (tmp, lt);
329 cp_html_entity (tmp, gt);
343 static int64_t ffm_read_write_index(int fd)
347 if (lseek(fd, 8, SEEK_SET) < 0)
349 if (read(fd, buf, 8) != 8)
354 static int ffm_write_write_index(int fd, int64_t pos)
360 buf[i] = (pos >> (56 - i * 8)) & 0xff;
361 if (lseek(fd, 8, SEEK_SET) < 0)
363 if (write(fd, buf, 8) != 8)
372 static void ffm_set_write_index(AVFormatContext *s, int64_t pos,
375 av_opt_set_int(s, "server_attached", 1, AV_OPT_SEARCH_CHILDREN);
376 av_opt_set_int(s, "ffm_write_index", pos, AV_OPT_SEARCH_CHILDREN);
377 av_opt_set_int(s, "ffm_file_size", file_size, AV_OPT_SEARCH_CHILDREN);
380 static char *ctime1(char *buf2, size_t buf_size)
391 av_strlcpy(buf2, p, buf_size);
392 p = buf2 + strlen(buf2) - 1;
398 static void http_vlog(const char *fmt, va_list vargs)
400 static int print_prefix = 1;
407 ctime1(buf, sizeof(buf));
408 fprintf(logfile, "%s ", buf);
410 print_prefix = strstr(fmt, "\n") != NULL;
411 vfprintf(logfile, fmt, vargs);
416 __attribute__ ((format (printf, 1, 2)))
418 static void http_log(const char *fmt, ...)
421 va_start(vargs, fmt);
422 http_vlog(fmt, vargs);
426 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
428 static int print_prefix = 1;
429 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
430 if (level > av_log_get_level())
432 if (print_prefix && avc)
433 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
434 print_prefix = strstr(fmt, "\n") != NULL;
435 http_vlog(fmt, vargs);
438 static void log_connection(HTTPContext *c)
443 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
444 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
445 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
448 static void update_datarate(DataRateData *drd, int64_t count)
450 if (!drd->time1 && !drd->count1) {
451 drd->time1 = drd->time2 = cur_time;
452 drd->count1 = drd->count2 = count;
453 } else if (cur_time - drd->time2 > 5000) {
454 drd->time1 = drd->time2;
455 drd->count1 = drd->count2;
456 drd->time2 = cur_time;
461 /* In bytes per second */
462 static int compute_datarate(DataRateData *drd, int64_t count)
464 if (cur_time == drd->time1)
467 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
471 static void start_children(FFServerStream *feed)
481 cmd_length = strlen(my_program_name);
484 * FIXME: WIP Safeguard. Remove after clearing all harcoded
485 * '1024' path lengths
487 if (cmd_length > PATH_LENGTH - 1) {
488 http_log("Could not start children. Command line: '%s' exceeds "
489 "path length limit (%d)\n", my_program_name, PATH_LENGTH);
493 pathname = av_strdup (my_program_name);
495 http_log("Could not allocate memory for children cmd line\n");
498 /* replace "ffserver" with "ffmpeg" in the path of current
499 * program. Ignore user provided path */
501 slash = strrchr(pathname, '/');
506 strcpy(slash, "ffmpeg");
508 for (; feed; feed = feed->next) {
510 if (!feed->child_argv || feed->pid)
513 feed->pid_start = time(0);
517 http_log("Unable to create children: %s\n", strerror(errno));
527 http_log("Launch command line: ");
528 http_log("%s ", pathname);
530 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
531 http_log("%s ", feed->child_argv[i]);
534 for (i = 3; i < 256; i++)
538 if (!freopen("/dev/null", "r", stdin))
539 http_log("failed to redirect STDIN to /dev/null\n;");
540 if (!freopen("/dev/null", "w", stdout))
541 http_log("failed to redirect STDOUT to /dev/null\n;");
542 if (!freopen("/dev/null", "w", stderr))
543 http_log("failed to redirect STDERR to /dev/null\n;");
546 signal(SIGPIPE, SIG_DFL);
547 execvp(pathname, feed->child_argv);
554 /* open a listening socket */
555 static int socket_open_listen(struct sockaddr_in *my_addr)
559 server_fd = socket(AF_INET,SOCK_STREAM,0);
566 if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)))
567 av_log(NULL, AV_LOG_WARNING, "setsockopt SO_REUSEADDR failed\n");
569 my_addr->sin_family = AF_INET;
570 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
572 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)",
573 ntohs(my_addr->sin_port));
578 if (listen (server_fd, 5) < 0) {
583 if (ff_socket_nonblock(server_fd, 1) < 0)
584 av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
589 closesocket(server_fd);
593 /* start all multicast streams */
594 static void start_multicast(void)
596 FFServerStream *stream;
599 struct sockaddr_in dest_addr = {0};
600 int default_port, stream_index;
601 unsigned int random0, random1;
604 for(stream = config.first_stream; stream; stream = stream->next) {
606 if (!stream->is_multicast)
609 random0 = av_lfg_get(&random_state);
610 random1 = av_lfg_get(&random_state);
612 /* open the RTP connection */
613 snprintf(session_id, sizeof(session_id), "%08x%08x", random0, random1);
615 /* choose a port if none given */
616 if (stream->multicast_port == 0) {
617 stream->multicast_port = default_port;
621 dest_addr.sin_family = AF_INET;
622 dest_addr.sin_addr = stream->multicast_ip;
623 dest_addr.sin_port = htons(stream->multicast_port);
625 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
626 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
630 if (open_input_stream(rtp_c, "") < 0) {
631 http_log("Could not open input stream for stream '%s'\n",
636 /* open each RTP stream */
637 for(stream_index = 0; stream_index < stream->nb_streams;
639 dest_addr.sin_port = htons(stream->multicast_port +
641 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) >= 0)
644 http_log("Could not open output stream '%s/streamid=%d'\n",
645 stream->filename, stream_index);
649 rtp_c->state = HTTPSTATE_SEND_DATA;
653 /* main loop of the HTTP server */
654 static int http_server(void)
656 int server_fd = 0, rtsp_server_fd = 0;
658 struct pollfd *poll_table, *poll_entry;
659 HTTPContext *c, *c_next;
661 poll_table = av_mallocz_array(config.nb_max_http_connections + 2,
662 sizeof(*poll_table));
664 http_log("Impossible to allocate a poll table handling %d "
665 "connections.\n", config.nb_max_http_connections);
669 if (config.http_addr.sin_port) {
670 server_fd = socket_open_listen(&config.http_addr);
675 if (config.rtsp_addr.sin_port) {
676 rtsp_server_fd = socket_open_listen(&config.rtsp_addr);
677 if (rtsp_server_fd < 0) {
678 closesocket(server_fd);
683 if (!rtsp_server_fd && !server_fd) {
684 http_log("HTTP and RTSP disabled.\n");
688 http_log("FFserver started.\n");
690 start_children(config.first_feed);
695 poll_entry = poll_table;
697 poll_entry->fd = server_fd;
698 poll_entry->events = POLLIN;
701 if (rtsp_server_fd) {
702 poll_entry->fd = rtsp_server_fd;
703 poll_entry->events = POLLIN;
707 /* wait for events on each HTTP handle */
714 case HTTPSTATE_SEND_HEADER:
715 case RTSPSTATE_SEND_REPLY:
716 case RTSPSTATE_SEND_PACKET:
717 c->poll_entry = poll_entry;
719 poll_entry->events = POLLOUT;
722 case HTTPSTATE_SEND_DATA_HEADER:
723 case HTTPSTATE_SEND_DATA:
724 case HTTPSTATE_SEND_DATA_TRAILER:
725 if (!c->is_packetized) {
726 /* for TCP, we output as much as we can
727 * (may need to put a limit) */
728 c->poll_entry = poll_entry;
730 poll_entry->events = POLLOUT;
733 /* when ffserver is doing the timing, we work by
734 * looking at which packet needs to be sent every
735 * 10 ms (one tick wait XXX: 10 ms assumed) */
740 case HTTPSTATE_WAIT_REQUEST:
741 case HTTPSTATE_RECEIVE_DATA:
742 case HTTPSTATE_WAIT_FEED:
743 case RTSPSTATE_WAIT_REQUEST:
744 /* need to catch errors */
745 c->poll_entry = poll_entry;
747 poll_entry->events = POLLIN;/* Maybe this will work */
751 c->poll_entry = NULL;
757 /* wait for an event on one connection. We poll at least every
758 * second to handle timeouts */
760 ret = poll(poll_table, poll_entry - poll_table, delay);
761 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
762 ff_neterrno() != AVERROR(EINTR)) {
767 cur_time = av_gettime() / 1000;
769 if (need_to_start_children) {
770 need_to_start_children = 0;
771 start_children(config.first_feed);
774 /* now handle the events */
775 for(c = first_http_ctx; c; c = c_next) {
777 if (handle_connection(c) < 0) {
779 /* close and free the connection */
784 poll_entry = poll_table;
786 /* new HTTP connection request ? */
787 if (poll_entry->revents & POLLIN)
788 new_connection(server_fd, 0);
791 if (rtsp_server_fd) {
792 /* new RTSP connection request ? */
793 if (poll_entry->revents & POLLIN)
794 new_connection(rtsp_server_fd, 1);
803 /* start waiting for a new HTTP/RTSP request */
804 static void start_wait_request(HTTPContext *c, int is_rtsp)
806 c->buffer_ptr = c->buffer;
807 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
809 c->state = is_rtsp ? RTSPSTATE_WAIT_REQUEST : HTTPSTATE_WAIT_REQUEST;
810 c->timeout = cur_time +
811 (is_rtsp ? RTSP_REQUEST_TIMEOUT : HTTP_REQUEST_TIMEOUT);
814 static void http_send_too_busy_reply(int fd)
817 int len = snprintf(buffer, sizeof(buffer),
818 "HTTP/1.0 503 Server too busy\r\n"
819 "Content-type: text/html\r\n"
822 "<html><head><title>Too busy</title></head><body>\r\n"
823 "<p>The server is too busy to serve your request at "
825 "<p>The number of current connections is %u, and this "
826 "exceeds the limit of %u.</p>\r\n"
827 "</body></html>\r\n",
828 nb_connections, config.nb_max_connections);
829 av_assert0(len < sizeof(buffer));
830 if (send(fd, buffer, len, 0) < len)
831 av_log(NULL, AV_LOG_WARNING,
832 "Could not send too-busy reply, send() failed\n");
836 static void new_connection(int server_fd, int is_rtsp)
838 struct sockaddr_in from_addr;
841 HTTPContext *c = NULL;
843 len = sizeof(from_addr);
844 fd = accept(server_fd, (struct sockaddr *)&from_addr,
847 http_log("error during accept %s\n", strerror(errno));
850 if (ff_socket_nonblock(fd, 1) < 0)
851 av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
853 if (nb_connections >= config.nb_max_connections) {
854 http_send_too_busy_reply(fd);
858 /* add a new connection */
859 c = av_mallocz(sizeof(HTTPContext));
864 c->poll_entry = NULL;
865 c->from_addr = from_addr;
866 c->buffer_size = IOBUFFER_INIT_SIZE;
867 c->buffer = av_malloc(c->buffer_size);
871 c->next = first_http_ctx;
875 start_wait_request(c, is_rtsp);
881 av_freep(&c->buffer);
887 static void close_connection(HTTPContext *c)
889 HTTPContext **cp, *c1;
891 AVFormatContext *ctx;
894 /* remove connection from list */
895 cp = &first_http_ctx;
904 /* remove references, if any (XXX: do it faster) */
905 for(c1 = first_http_ctx; c1; c1 = c1->next) {
910 /* remove connection associated resources */
914 /* close each frame parser */
915 for(i=0;i<c->fmt_in->nb_streams;i++) {
916 st = c->fmt_in->streams[i];
917 if (st->codec->codec)
918 avcodec_close(st->codec);
920 avformat_close_input(&c->fmt_in);
923 /* free RTP output streams if any */
926 nb_streams = c->stream->nb_streams;
928 for(i=0;i<nb_streams;i++) {
931 av_write_trailer(ctx);
932 av_dict_free(&ctx->metadata);
933 av_freep(&ctx->streams[0]);
936 ffurl_close(c->rtp_handles[i]);
941 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
943 if (ctx->oformat && avio_open_dyn_buf(&ctx->pb) >= 0) {
944 av_write_trailer(ctx);
945 av_freep(&c->pb_buffer);
946 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
950 for(i=0; i<ctx->nb_streams; i++)
951 av_freep(&ctx->streams[i]);
952 av_freep(&ctx->streams);
953 av_freep(&ctx->priv_data);
955 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
956 current_bandwidth -= c->stream->bandwidth;
958 /* signal that there is no feed if we are the feeder socket */
959 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
960 c->stream->feed_opened = 0;
964 av_freep(&c->pb_buffer);
965 av_freep(&c->packet_buffer);
966 av_freep(&c->buffer);
971 static int handle_connection(HTTPContext *c)
977 case HTTPSTATE_WAIT_REQUEST:
978 case RTSPSTATE_WAIT_REQUEST:
980 if ((c->timeout - cur_time) < 0)
982 if (c->poll_entry->revents & (POLLERR | POLLHUP))
985 /* no need to read if no events */
986 if (!(c->poll_entry->revents & POLLIN))
990 if (!(len = recv(c->fd, c->buffer_ptr, 1, 0)))
994 if (ff_neterrno() != AVERROR(EAGAIN) &&
995 ff_neterrno() != AVERROR(EINTR))
999 /* search for end of request. */
1000 c->buffer_ptr += len;
1001 ptr = c->buffer_ptr;
1002 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
1003 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
1004 /* request found : parse it and reply */
1005 if (c->state == HTTPSTATE_WAIT_REQUEST)
1006 ret = http_parse_request(c);
1008 ret = rtsp_parse_request(c);
1012 } else if (ptr >= c->buffer_end) {
1013 /* request too long: cannot do anything */
1015 } else goto read_loop;
1019 case HTTPSTATE_SEND_HEADER:
1020 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1023 /* no need to write if no events */
1024 if (!(c->poll_entry->revents & POLLOUT))
1026 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1028 if (ff_neterrno() != AVERROR(EAGAIN) &&
1029 ff_neterrno() != AVERROR(EINTR)) {
1030 goto close_connection;
1034 c->buffer_ptr += len;
1036 c->stream->bytes_served += len;
1037 c->data_count += len;
1038 if (c->buffer_ptr >= c->buffer_end) {
1039 av_freep(&c->pb_buffer);
1040 /* if error, exit */
1043 /* all the buffer was sent : synchronize to the incoming
1045 c->state = HTTPSTATE_SEND_DATA_HEADER;
1046 c->buffer_ptr = c->buffer_end = c->buffer;
1050 case HTTPSTATE_SEND_DATA:
1051 case HTTPSTATE_SEND_DATA_HEADER:
1052 case HTTPSTATE_SEND_DATA_TRAILER:
1053 /* for packetized output, we consider we can always write (the
1054 * input streams set the speed). It may be better to verify
1055 * that we do not rely too much on the kernel queues */
1056 if (!c->is_packetized) {
1057 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1060 /* no need to read if no events */
1061 if (!(c->poll_entry->revents & POLLOUT))
1064 if (http_send_data(c) < 0)
1066 /* close connection if trailer sent */
1067 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1069 /* Check if it is a single jpeg frame 123 */
1070 if (c->stream->single_frame && c->data_count > c->cur_frame_bytes && c->cur_frame_bytes > 0) {
1071 close_connection(c);
1074 case HTTPSTATE_RECEIVE_DATA:
1075 /* no need to read if no events */
1076 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1078 if (!(c->poll_entry->revents & POLLIN))
1080 if (http_receive_data(c) < 0)
1083 case HTTPSTATE_WAIT_FEED:
1084 /* no need to read if no events */
1085 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1088 /* nothing to do, we'll be waken up by incoming feed packets */
1091 case RTSPSTATE_SEND_REPLY:
1092 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1093 goto close_connection;
1094 /* no need to write if no events */
1095 if (!(c->poll_entry->revents & POLLOUT))
1097 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1099 if (ff_neterrno() != AVERROR(EAGAIN) &&
1100 ff_neterrno() != AVERROR(EINTR)) {
1101 goto close_connection;
1105 c->buffer_ptr += len;
1106 c->data_count += len;
1107 if (c->buffer_ptr >= c->buffer_end) {
1108 /* all the buffer was sent : wait for a new request */
1109 av_freep(&c->pb_buffer);
1110 start_wait_request(c, 1);
1113 case RTSPSTATE_SEND_PACKET:
1114 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1115 av_freep(&c->packet_buffer);
1118 /* no need to write if no events */
1119 if (!(c->poll_entry->revents & POLLOUT))
1121 len = send(c->fd, c->packet_buffer_ptr,
1122 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1124 if (ff_neterrno() != AVERROR(EAGAIN) &&
1125 ff_neterrno() != AVERROR(EINTR)) {
1126 /* error : close connection */
1127 av_freep(&c->packet_buffer);
1132 c->packet_buffer_ptr += len;
1133 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1134 /* all the buffer was sent : wait for a new request */
1135 av_freep(&c->packet_buffer);
1136 c->state = RTSPSTATE_WAIT_REQUEST;
1139 case HTTPSTATE_READY:
1148 av_freep(&c->pb_buffer);
1152 static int extract_rates(char *rates, int ratelen, const char *request)
1156 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1157 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1158 const char *q = p + 7;
1160 while (*q && *q != '\n' && av_isspace(*q))
1163 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1169 memset(rates, 0xff, ratelen);
1172 while (*q && *q != '\n' && *q != ':')
1175 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1179 if (stream_no < ratelen && stream_no >= 0)
1180 rates[stream_no] = rate_no;
1182 while (*q && *q != '\n' && !av_isspace(*q))
1189 p = strchr(p, '\n');
1199 static int find_stream_in_feed(FFServerStream *feed, AVCodecContext *codec,
1203 int best_bitrate = 100000000;
1206 for (i = 0; i < feed->nb_streams; i++) {
1207 AVCodecContext *feed_codec = feed->streams[i]->codec;
1209 if (feed_codec->codec_id != codec->codec_id ||
1210 feed_codec->sample_rate != codec->sample_rate ||
1211 feed_codec->width != codec->width ||
1212 feed_codec->height != codec->height)
1215 /* Potential stream */
1217 /* We want the fastest stream less than bit_rate, or the slowest
1218 * faster than bit_rate
1221 if (feed_codec->bit_rate <= bit_rate) {
1222 if (best_bitrate > bit_rate ||
1223 feed_codec->bit_rate > best_bitrate) {
1224 best_bitrate = feed_codec->bit_rate;
1229 if (feed_codec->bit_rate < best_bitrate) {
1230 best_bitrate = feed_codec->bit_rate;
1237 static int modify_current_stream(HTTPContext *c, char *rates)
1240 FFServerStream *req = c->stream;
1241 int action_required = 0;
1243 /* Not much we can do for a feed */
1247 for (i = 0; i < req->nb_streams; i++) {
1248 AVCodecContext *codec = req->streams[i]->codec;
1252 c->switch_feed_streams[i] = req->feed_streams[i];
1255 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1258 /* Wants off or slow */
1259 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1261 /* This doesn't work well when it turns off the only stream! */
1262 c->switch_feed_streams[i] = -2;
1263 c->feed_streams[i] = -2;
1268 if (c->switch_feed_streams[i] >= 0 &&
1269 c->switch_feed_streams[i] != c->feed_streams[i]) {
1270 action_required = 1;
1274 return action_required;
1277 static void get_word(char *buf, int buf_size, const char **pp)
1283 p += strspn(p, SPACE_CHARS);
1285 while (!av_isspace(*p) && *p != '\0') {
1286 if ((q - buf) < buf_size - 1)
1295 static FFServerIPAddressACL* parse_dynamic_acl(FFServerStream *stream,
1301 FFServerIPAddressACL *acl = NULL;
1305 f = fopen(stream->dynamic_acl, "r");
1307 perror(stream->dynamic_acl);
1311 acl = av_mallocz(sizeof(FFServerIPAddressACL));
1318 while (fgets(line, sizeof(line), f)) {
1321 while (av_isspace(*p))
1323 if (*p == '\0' || *p == '#')
1325 ffserver_get_arg(cmd, sizeof(cmd), &p);
1327 if (!av_strcasecmp(cmd, "ACL"))
1328 ffserver_parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl,
1336 static void free_acl_list(FFServerIPAddressACL *in_acl)
1338 FFServerIPAddressACL *pacl, *pacl2;
1348 static int validate_acl_list(FFServerIPAddressACL *in_acl, HTTPContext *c)
1350 enum FFServerIPAddressAction last_action = IP_DENY;
1351 FFServerIPAddressACL *acl;
1352 struct in_addr *src = &c->from_addr.sin_addr;
1353 unsigned long src_addr = src->s_addr;
1355 for (acl = in_acl; acl; acl = acl->next) {
1356 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1357 return (acl->action == IP_ALLOW) ? 1 : 0;
1358 last_action = acl->action;
1361 /* Nothing matched, so return not the last action */
1362 return (last_action == IP_DENY) ? 1 : 0;
1365 static int validate_acl(FFServerStream *stream, HTTPContext *c)
1368 FFServerIPAddressACL *acl;
1370 /* if stream->acl is null validate_acl_list will return 1 */
1371 ret = validate_acl_list(stream->acl, c);
1373 if (stream->dynamic_acl[0]) {
1374 acl = parse_dynamic_acl(stream, c);
1375 ret = validate_acl_list(acl, c);
1383 * compute the real filename of a file by matching it without its
1384 * extensions to all the stream's filenames
1386 static void compute_real_filename(char *filename, int max_size)
1391 FFServerStream *stream;
1393 av_strlcpy(file1, filename, sizeof(file1));
1394 p = strrchr(file1, '.');
1397 for(stream = config.first_stream; stream; stream = stream->next) {
1398 av_strlcpy(file2, stream->filename, sizeof(file2));
1399 p = strrchr(file2, '.');
1402 if (!strcmp(file1, file2)) {
1403 av_strlcpy(filename, stream->filename, max_size);
1418 /* parse HTTP request and prepare header */
1419 static int http_parse_request(HTTPContext *c)
1423 enum RedirType redir_type;
1425 char info[1024], filename[1024];
1429 char *encoded_msg = NULL;
1430 const char *mime_type;
1431 FFServerStream *stream;
1434 const char *useragent = 0;
1437 get_word(cmd, sizeof(cmd), &p);
1438 av_strlcpy(c->method, cmd, sizeof(c->method));
1440 if (!strcmp(cmd, "GET"))
1442 else if (!strcmp(cmd, "POST"))
1447 get_word(url, sizeof(url), &p);
1448 av_strlcpy(c->url, url, sizeof(c->url));
1450 get_word(protocol, sizeof(protocol), (const char **)&p);
1451 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1454 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1457 http_log("%s - - New connection: %s %s\n",
1458 inet_ntoa(c->from_addr.sin_addr), cmd, url);
1460 /* find the filename and the optional info string in the request */
1461 p1 = strchr(url, '?');
1463 av_strlcpy(info, p1, sizeof(info));
1468 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1470 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1471 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1473 if (*useragent && *useragent != '\n' && av_isspace(*useragent))
1477 p = strchr(p, '\n');
1484 redir_type = REDIR_NONE;
1485 if (av_match_ext(filename, "asx")) {
1486 redir_type = REDIR_ASX;
1487 filename[strlen(filename)-1] = 'f';
1488 } else if (av_match_ext(filename, "asf") &&
1489 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8))) {
1490 /* if this isn't WMP or lookalike, return the redirector file */
1491 redir_type = REDIR_ASF;
1492 } else if (av_match_ext(filename, "rpm,ram")) {
1493 redir_type = REDIR_RAM;
1494 strcpy(filename + strlen(filename)-2, "m");
1495 } else if (av_match_ext(filename, "rtsp")) {
1496 redir_type = REDIR_RTSP;
1497 compute_real_filename(filename, sizeof(filename) - 1);
1498 } else if (av_match_ext(filename, "sdp")) {
1499 redir_type = REDIR_SDP;
1500 compute_real_filename(filename, sizeof(filename) - 1);
1503 /* "redirect" request to index.html */
1504 if (!strlen(filename))
1505 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1507 stream = config.first_stream;
1509 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1511 stream = stream->next;
1514 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1515 http_log("File '%s' not found\n", url);
1520 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1521 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1523 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1524 c->http_error = 301;
1526 snprintf(q, c->buffer_size,
1527 "HTTP/1.0 301 Moved\r\n"
1529 "Content-type: text/html\r\n"
1532 "<html><head><title>Moved</title></head><body>\r\n"
1533 "You should be <a href=\"%s\">redirected</a>.\r\n"
1534 "</body></html>\r\n",
1535 stream->feed_filename, stream->feed_filename);
1537 /* prepare output buffer */
1538 c->buffer_ptr = c->buffer;
1540 c->state = HTTPSTATE_SEND_HEADER;
1544 /* If this is WMP, get the rate information */
1545 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1546 if (modify_current_stream(c, ratebuf)) {
1547 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1548 if (c->switch_feed_streams[i] >= 0)
1549 c->switch_feed_streams[i] = -1;
1554 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1555 current_bandwidth += stream->bandwidth;
1557 /* If already streaming this feed, do not let another feeder start */
1558 if (stream->feed_opened) {
1559 snprintf(msg, sizeof(msg), "This feed is already being received.");
1560 http_log("Feed '%s' already being received\n", stream->feed_filename);
1564 if (c->post == 0 && config.max_bandwidth < current_bandwidth) {
1565 c->http_error = 503;
1567 snprintf(q, c->buffer_size,
1568 "HTTP/1.0 503 Server too busy\r\n"
1569 "Content-type: text/html\r\n"
1572 "<html><head><title>Too busy</title></head><body>\r\n"
1573 "<p>The server is too busy to serve your request at "
1574 "this time.</p>\r\n"
1575 "<p>The bandwidth being served (including your stream) "
1576 "is %"PRIu64"kbit/s, and this exceeds the limit of "
1577 "%"PRIu64"kbit/s.</p>\r\n"
1578 "</body></html>\r\n",
1579 current_bandwidth, config.max_bandwidth);
1581 /* prepare output buffer */
1582 c->buffer_ptr = c->buffer;
1584 c->state = HTTPSTATE_SEND_HEADER;
1588 if (redir_type != REDIR_NONE) {
1589 const char *hostinfo = 0;
1591 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1592 if (av_strncasecmp(p, "Host:", 5) == 0) {
1596 p = strchr(p, '\n');
1607 while (av_isspace(*hostinfo))
1610 eoh = strchr(hostinfo, '\n');
1612 if (eoh[-1] == '\r')
1615 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1616 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1617 hostbuf[eoh - hostinfo] = 0;
1619 c->http_error = 200;
1621 switch(redir_type) {
1623 snprintf(q, c->buffer_size,
1624 "HTTP/1.0 200 ASX Follows\r\n"
1625 "Content-type: video/x-ms-asf\r\n"
1627 "<ASX Version=\"3\">\r\n"
1628 //"<!-- Autogenerated by ffserver -->\r\n"
1629 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1630 "</ASX>\r\n", hostbuf, filename, info);
1634 snprintf(q, c->buffer_size,
1635 "HTTP/1.0 200 RAM Follows\r\n"
1636 "Content-type: audio/x-pn-realaudio\r\n"
1638 "# Autogenerated by ffserver\r\n"
1639 "http://%s/%s%s\r\n", hostbuf, filename, info);
1643 snprintf(q, c->buffer_size,
1644 "HTTP/1.0 200 ASF Redirect follows\r\n"
1645 "Content-type: video/x-ms-asf\r\n"
1648 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1653 char hostname[256], *p;
1654 /* extract only hostname */
1655 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1656 p = strrchr(hostname, ':');
1659 snprintf(q, c->buffer_size,
1660 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1661 /* XXX: incorrect MIME type ? */
1662 "Content-type: application/x-rtsp\r\n"
1664 "rtsp://%s:%d/%s\r\n", hostname, ntohs(config.rtsp_addr.sin_port), filename);
1673 struct sockaddr_in my_addr;
1675 snprintf(q, c->buffer_size,
1676 "HTTP/1.0 200 OK\r\n"
1677 "Content-type: application/sdp\r\n"
1681 len = sizeof(my_addr);
1683 /* XXX: Should probably fail? */
1684 if (getsockname(c->fd, (struct sockaddr *)&my_addr, &len))
1685 http_log("getsockname() failed\n");
1687 /* XXX: should use a dynamic buffer */
1688 sdp_data_size = prepare_sdp_description(stream,
1691 if (sdp_data_size > 0) {
1692 memcpy(q, sdp_data, sdp_data_size);
1704 /* prepare output buffer */
1705 c->buffer_ptr = c->buffer;
1707 c->state = HTTPSTATE_SEND_HEADER;
1713 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1717 stream->conns_served++;
1719 /* XXX: add there authenticate and IP match */
1722 /* if post, it means a feed is being sent */
1723 if (!stream->is_feed) {
1724 /* However it might be a status report from WMP! Let us log the
1725 * data as it might come handy one day. */
1726 const char *logline = 0;
1729 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1730 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1734 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1735 client_id = strtol(p + 18, 0, 10);
1736 p = strchr(p, '\n');
1744 char *eol = strchr(logline, '\n');
1749 if (eol[-1] == '\r')
1751 http_log("%.*s\n", (int) (eol - logline), logline);
1752 c->suppress_log = 1;
1757 http_log("\nGot request:\n%s\n", c->buffer);
1760 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1763 /* Now we have to find the client_id */
1764 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1765 if (wmpc->wmp_client_id == client_id)
1769 if (wmpc && modify_current_stream(wmpc, ratebuf))
1770 wmpc->switch_pending = 1;
1773 snprintf(msg, sizeof(msg), "POST command not handled");
1777 if (http_start_receive_data(c) < 0) {
1778 snprintf(msg, sizeof(msg), "could not open feed");
1782 c->state = HTTPSTATE_RECEIVE_DATA;
1787 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1788 http_log("\nGot request:\n%s\n", c->buffer);
1791 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1794 /* open input stream */
1795 if (open_input_stream(c, info) < 0) {
1796 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1800 /* prepare HTTP header */
1802 av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n");
1803 mime_type = c->stream->fmt->mime_type;
1805 mime_type = "application/x-octet-stream";
1806 av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n");
1808 /* for asf, we need extra headers */
1809 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1810 /* Need to allocate a client id */
1812 c->wmp_client_id = av_lfg_get(&random_state);
1814 av_strlcatf(c->buffer, c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
1816 av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type);
1817 av_strlcatf(c->buffer, c->buffer_size, "\r\n");
1818 q = c->buffer + strlen(c->buffer);
1820 /* prepare output buffer */
1822 c->buffer_ptr = c->buffer;
1824 c->state = HTTPSTATE_SEND_HEADER;
1827 c->http_error = 404;
1829 if (!htmlencode(msg, &encoded_msg)) {
1830 http_log("Could not encode filename '%s' as HTML\n", msg);
1832 snprintf(q, c->buffer_size,
1833 "HTTP/1.0 404 Not Found\r\n"
1834 "Content-type: text/html\r\n"
1839 "<meta charset=\"UTF-8\">\n"
1840 "<title>404 Not Found</title>\n"
1843 "</html>\n", encoded_msg? encoded_msg : "File not found");
1845 /* prepare output buffer */
1846 c->buffer_ptr = c->buffer;
1848 c->state = HTTPSTATE_SEND_HEADER;
1849 av_freep(&encoded_msg);
1853 /* horrible: we use this value to avoid
1854 * going to the send data state */
1855 c->http_error = 200;
1856 c->state = HTTPSTATE_SEND_HEADER;
1860 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1862 static const char suffix[] = " kMGTP";
1865 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1867 avio_printf(pb, "%"PRId64"%c", count, *s);
1870 static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream)
1873 const char *type = "unknown";
1874 char parameters[64];
1878 stream_no = stream->nb_streams;
1880 avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>"
1881 "type<th>kbit/s<th align=left>codec<th align=left>"
1884 for (i = 0; i < stream_no; i++) {
1885 st = stream->streams[i];
1886 codec = avcodec_find_encoder(st->codec->codec_id);
1890 switch(st->codec->codec_type) {
1891 case AVMEDIA_TYPE_AUDIO:
1893 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz",
1894 st->codec->channels, st->codec->sample_rate);
1896 case AVMEDIA_TYPE_VIDEO:
1898 snprintf(parameters, sizeof(parameters),
1899 "%dx%d, q=%d-%d, fps=%d", st->codec->width,
1900 st->codec->height, st->codec->qmin, st->codec->qmax,
1901 st->codec->time_base.den / st->codec->time_base.num);
1907 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%"PRId64
1909 i, type, (int64_t)st->codec->bit_rate/1000,
1910 codec ? codec->name : "", parameters);
1913 avio_printf(pb, "</table>\n");
1916 static void compute_status(HTTPContext *c)
1919 FFServerStream *stream;
1925 if (avio_open_dyn_buf(&pb) < 0) {
1926 /* XXX: return an error ? */
1927 c->buffer_ptr = c->buffer;
1928 c->buffer_end = c->buffer;
1932 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1933 avio_printf(pb, "Content-type: text/html\r\n");
1934 avio_printf(pb, "Pragma: no-cache\r\n");
1935 avio_printf(pb, "\r\n");
1937 avio_printf(pb, "<!DOCTYPE html>\n");
1938 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1939 if (c->stream->feed_filename[0])
1940 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n",
1941 c->stream->feed_filename);
1942 avio_printf(pb, "</head>\n<body>");
1943 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1945 avio_printf(pb, "<h2>Available Streams</h2>\n");
1946 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1947 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>kbit/s<th align=left>Video<br>kbit/s<th><br>Codec<th align=left>Audio<br>kbit/s<th><br>Codec<th align=left valign=top>Feed\n");
1948 stream = config.first_stream;
1950 char sfilename[1024];
1953 if (stream->feed == stream) {
1954 stream = stream->next;
1958 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1959 eosf = sfilename + strlen(sfilename);
1960 if (eosf - sfilename >= 4) {
1961 if (strcmp(eosf - 4, ".asf") == 0)
1962 strcpy(eosf - 4, ".asx");
1963 else if (strcmp(eosf - 3, ".rm") == 0)
1964 strcpy(eosf - 3, ".ram");
1965 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1966 /* generate a sample RTSP director if
1967 * unicast. Generate an SDP redirector if
1969 eosf = strrchr(sfilename, '.');
1971 eosf = sfilename + strlen(sfilename);
1972 if (stream->is_multicast)
1973 strcpy(eosf, ".sdp");
1975 strcpy(eosf, ".rtsp");
1979 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1980 sfilename, stream->filename);
1981 avio_printf(pb, "<td align=right> %d <td align=right> ",
1982 stream->conns_served);
1983 fmt_bytecount(pb, stream->bytes_served);
1985 switch(stream->stream_type) {
1986 case STREAM_TYPE_LIVE: {
1987 int audio_bit_rate = 0;
1988 int video_bit_rate = 0;
1989 const char *audio_codec_name = "";
1990 const char *video_codec_name = "";
1991 const char *audio_codec_name_extra = "";
1992 const char *video_codec_name_extra = "";
1994 for(i=0;i<stream->nb_streams;i++) {
1995 AVStream *st = stream->streams[i];
1996 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1998 switch(st->codec->codec_type) {
1999 case AVMEDIA_TYPE_AUDIO:
2000 audio_bit_rate += st->codec->bit_rate;
2002 if (*audio_codec_name)
2003 audio_codec_name_extra = "...";
2004 audio_codec_name = codec->name;
2007 case AVMEDIA_TYPE_VIDEO:
2008 video_bit_rate += st->codec->bit_rate;
2010 if (*video_codec_name)
2011 video_codec_name_extra = "...";
2012 video_codec_name = codec->name;
2015 case AVMEDIA_TYPE_DATA:
2016 video_bit_rate += st->codec->bit_rate;
2023 avio_printf(pb, "<td align=center> %s <td align=right> %d "
2024 "<td align=right> %d <td> %s %s <td align=right> "
2026 stream->fmt->name, stream->bandwidth,
2027 video_bit_rate / 1000, video_codec_name,
2028 video_codec_name_extra, audio_bit_rate / 1000,
2029 audio_codec_name, audio_codec_name_extra);
2032 avio_printf(pb, "<td>%s", stream->feed->filename);
2034 avio_printf(pb, "<td>%s", stream->feed_filename);
2035 avio_printf(pb, "\n");
2039 avio_printf(pb, "<td align=center> - <td align=right> - "
2040 "<td align=right> - <td><td align=right> - <td>\n");
2043 stream = stream->next;
2045 avio_printf(pb, "</table>\n");
2047 stream = config.first_stream;
2050 if (stream->feed != stream) {
2051 stream = stream->next;
2055 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2057 avio_printf(pb, "Running as pid %"PRId64".\n", (int64_t) stream->pid);
2064 /* This is somewhat linux specific I guess */
2065 snprintf(ps_cmd, sizeof(ps_cmd),
2066 "ps -o \"%%cpu,cputime\" --no-headers %"PRId64"",
2067 (int64_t) stream->pid);
2069 pid_stat = popen(ps_cmd, "r");
2074 if (fscanf(pid_stat, "%9s %63s", cpuperc, cpuused) == 2) {
2075 avio_printf(pb, "Currently using %s%% of the cpu. "
2076 "Total time used %s.\n",
2084 avio_printf(pb, "<p>");
2087 print_stream_params(pb, stream);
2088 stream = stream->next;
2091 /* connection status */
2092 avio_printf(pb, "<h2>Connection Status</h2>\n");
2094 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2095 nb_connections, config.nb_max_connections);
2097 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2098 current_bandwidth, config.max_bandwidth);
2100 avio_printf(pb, "<table>\n");
2101 avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target "
2102 "bit/s<th>Actual bit/s<th>Bytes transferred\n");
2103 c1 = first_http_ctx;
2111 for (j = 0; j < c1->stream->nb_streams; j++) {
2112 if (!c1->stream->feed)
2113 bitrate += c1->stream->streams[j]->codec->bit_rate;
2114 else if (c1->feed_streams[j] >= 0)
2115 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2120 p = inet_ntoa(c1->from_addr.sin_addr);
2121 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s"
2123 i, c1->stream ? c1->stream->filename : "",
2124 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", p,
2125 c1->protocol, http_state[c1->state]);
2126 fmt_bytecount(pb, bitrate);
2127 avio_printf(pb, "<td align=right>");
2128 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2129 avio_printf(pb, "<td align=right>");
2130 fmt_bytecount(pb, c1->data_count);
2131 avio_printf(pb, "\n");
2134 avio_printf(pb, "</table>\n");
2139 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2140 avio_printf(pb, "</body>\n</html>\n");
2142 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2143 c->buffer_ptr = c->pb_buffer;
2144 c->buffer_end = c->pb_buffer + len;
2147 static int open_input_stream(HTTPContext *c, const char *info)
2150 char input_filename[1024];
2151 AVFormatContext *s = NULL;
2152 int buf_size, i, ret;
2155 /* find file name */
2156 if (c->stream->feed) {
2157 strcpy(input_filename, c->stream->feed->feed_filename);
2158 buf_size = FFM_PACKET_SIZE;
2159 /* compute position (absolute time) */
2160 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2161 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) {
2162 http_log("Invalid date specification '%s' for stream\n", buf);
2165 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2166 int prebuffer = strtol(buf, 0, 10);
2167 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2169 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2171 strcpy(input_filename, c->stream->feed_filename);
2173 /* compute position (relative time) */
2174 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2175 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) {
2176 http_log("Invalid date specification '%s' for stream\n", buf);
2182 if (!input_filename[0]) {
2183 http_log("No filename was specified for stream\n");
2184 return AVERROR(EINVAL);
2188 ret = avformat_open_input(&s, input_filename, c->stream->ifmt,
2189 &c->stream->in_opts);
2191 http_log("Could not open input '%s': %s\n",
2192 input_filename, av_err2str(ret));
2196 /* set buffer size */
2198 ret = ffio_set_buf_size(s->pb, buf_size);
2200 http_log("Failed to set buffer size\n");
2205 s->flags |= AVFMT_FLAG_GENPTS;
2207 if (strcmp(s->iformat->name, "ffm") &&
2208 (ret = avformat_find_stream_info(c->fmt_in, NULL)) < 0) {
2209 http_log("Could not find stream info for input '%s'\n", input_filename);
2210 avformat_close_input(&s);
2214 /* choose stream as clock source (we favor the video stream if
2215 * present) for packet sending */
2216 c->pts_stream_index = 0;
2217 for(i=0;i<c->stream->nb_streams;i++) {
2218 if (c->pts_stream_index == 0 &&
2219 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2220 c->pts_stream_index = i;
2224 if (c->fmt_in->iformat->read_seek)
2225 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2226 /* set the start time (needed for maxtime and RTP packet timing) */
2227 c->start_time = cur_time;
2228 c->first_pts = AV_NOPTS_VALUE;
2232 /* return the server clock (in us) */
2233 static int64_t get_server_clock(HTTPContext *c)
2235 /* compute current pts value from system time */
2236 return (cur_time - c->start_time) * 1000;
2239 /* return the estimated time (in us) at which the current packet must be sent */
2240 static int64_t get_packet_send_clock(HTTPContext *c)
2242 int bytes_left, bytes_sent, frame_bytes;
2244 frame_bytes = c->cur_frame_bytes;
2245 if (frame_bytes <= 0)
2248 bytes_left = c->buffer_end - c->buffer_ptr;
2249 bytes_sent = frame_bytes - bytes_left;
2250 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2254 static int http_prepare_data(HTTPContext *c)
2257 AVFormatContext *ctx;
2259 av_freep(&c->pb_buffer);
2261 case HTTPSTATE_SEND_DATA_HEADER:
2262 ctx = avformat_alloc_context();
2264 return AVERROR(ENOMEM);
2267 av_dict_copy(&(c->fmt_ctx.metadata), c->stream->metadata, 0);
2268 c->fmt_ctx.streams = av_mallocz_array(c->stream->nb_streams,
2269 sizeof(AVStream *));
2270 if (!c->fmt_ctx.streams)
2271 return AVERROR(ENOMEM);
2273 for(i=0;i<c->stream->nb_streams;i++) {
2275 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2277 /* if file or feed, then just take streams from FFServerStream
2279 if (!c->stream->feed ||
2280 c->stream->feed == c->stream)
2281 src = c->stream->streams[i];
2283 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2285 *(c->fmt_ctx.streams[i]) = *src;
2286 c->fmt_ctx.streams[i]->priv_data = 0;
2287 /* XXX: should be done in AVStream, not in codec */
2288 c->fmt_ctx.streams[i]->codec->frame_number = 0;
2290 /* set output format parameters */
2291 c->fmt_ctx.oformat = c->stream->fmt;
2292 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2294 c->got_key_frame = 0;
2296 /* prepare header and save header data in a stream */
2297 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2298 /* XXX: potential leak */
2301 c->fmt_ctx.pb->seekable = 0;
2304 * HACK to avoid MPEG-PS muxer to spit many underflow errors
2305 * Default value from FFmpeg
2306 * Try to set it using configuration option
2308 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2310 if ((ret = avformat_write_header(&c->fmt_ctx, NULL)) < 0) {
2311 http_log("Error writing output header for stream '%s': %s\n",
2312 c->stream->filename, av_err2str(ret));
2315 av_dict_free(&c->fmt_ctx.metadata);
2317 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2318 c->buffer_ptr = c->pb_buffer;
2319 c->buffer_end = c->pb_buffer + len;
2321 c->state = HTTPSTATE_SEND_DATA;
2322 c->last_packet_sent = 0;
2324 case HTTPSTATE_SEND_DATA:
2325 /* find a new packet */
2326 /* read a packet from the input stream */
2327 if (c->stream->feed)
2328 ffm_set_write_index(c->fmt_in,
2329 c->stream->feed->feed_write_index,
2330 c->stream->feed->feed_size);
2332 if (c->stream->max_time &&
2333 c->stream->max_time + c->start_time - cur_time < 0)
2334 /* We have timed out */
2335 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2339 ret = av_read_frame(c->fmt_in, &pkt);
2341 if (c->stream->feed) {
2342 /* if coming from feed, it means we reached the end of the
2343 * ffm file, so must wait for more data */
2344 c->state = HTTPSTATE_WAIT_FEED;
2345 return 1; /* state changed */
2347 if (ret == AVERROR(EAGAIN)) {
2348 /* input not ready, come back later */
2351 if (c->stream->loop) {
2352 avformat_close_input(&c->fmt_in);
2353 if (open_input_stream(c, "") < 0)
2358 /* must send trailer now because EOF or error */
2359 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2362 int source_index = pkt.stream_index;
2363 /* update first pts if needed */
2364 if (c->first_pts == AV_NOPTS_VALUE && pkt.dts != AV_NOPTS_VALUE) {
2365 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2366 c->start_time = cur_time;
2368 /* send it to the appropriate stream */
2369 if (c->stream->feed) {
2370 /* if coming from a feed, select the right stream */
2371 if (c->switch_pending) {
2372 c->switch_pending = 0;
2373 for(i=0;i<c->stream->nb_streams;i++) {
2374 if (c->switch_feed_streams[i] == pkt.stream_index)
2375 if (pkt.flags & AV_PKT_FLAG_KEY)
2376 c->switch_feed_streams[i] = -1;
2377 if (c->switch_feed_streams[i] >= 0)
2378 c->switch_pending = 1;
2381 for(i=0;i<c->stream->nb_streams;i++) {
2382 if (c->stream->feed_streams[i] == pkt.stream_index) {
2383 AVStream *st = c->fmt_in->streams[source_index];
2384 pkt.stream_index = i;
2385 if (pkt.flags & AV_PKT_FLAG_KEY &&
2386 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2387 c->stream->nb_streams == 1))
2388 c->got_key_frame = 1;
2389 if (!c->stream->send_on_key || c->got_key_frame)
2394 AVCodecContext *codec;
2395 AVStream *ist, *ost;
2397 ist = c->fmt_in->streams[source_index];
2398 /* specific handling for RTP: we use several
2399 * output streams (one for each RTP connection).
2400 * XXX: need more abstract handling */
2401 if (c->is_packetized) {
2402 /* compute send time and duration */
2403 if (pkt.dts != AV_NOPTS_VALUE) {
2404 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2405 c->cur_pts -= c->first_pts;
2407 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2408 /* find RTP context */
2409 c->packet_stream_index = pkt.stream_index;
2410 ctx = c->rtp_ctx[c->packet_stream_index];
2412 av_packet_unref(&pkt);
2415 codec = ctx->streams[0]->codec;
2416 /* only one stream per RTP connection */
2417 pkt.stream_index = 0;
2421 codec = ctx->streams[pkt.stream_index]->codec;
2424 if (c->is_packetized) {
2425 int max_packet_size;
2426 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2427 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2429 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2430 ret = ffio_open_dyn_packet_buf(&ctx->pb,
2433 ret = avio_open_dyn_buf(&ctx->pb);
2436 /* XXX: potential leak */
2439 ost = ctx->streams[pkt.stream_index];
2441 ctx->pb->seekable = 0;
2442 if (pkt.dts != AV_NOPTS_VALUE)
2443 pkt.dts = av_rescale_q(pkt.dts, ist->time_base,
2445 if (pkt.pts != AV_NOPTS_VALUE)
2446 pkt.pts = av_rescale_q(pkt.pts, ist->time_base,
2448 pkt.duration = av_rescale_q(pkt.duration, ist->time_base,
2450 if ((ret = av_write_frame(ctx, &pkt)) < 0) {
2451 http_log("Error writing frame to output for stream '%s': %s\n",
2452 c->stream->filename, av_err2str(ret));
2453 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2456 av_freep(&c->pb_buffer);
2457 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2459 c->cur_frame_bytes = len;
2460 c->buffer_ptr = c->pb_buffer;
2461 c->buffer_end = c->pb_buffer + len;
2463 codec->frame_number++;
2465 av_packet_unref(&pkt);
2469 av_packet_unref(&pkt);
2474 case HTTPSTATE_SEND_DATA_TRAILER:
2475 /* last packet test ? */
2476 if (c->last_packet_sent || c->is_packetized)
2479 /* prepare header */
2480 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2481 /* XXX: potential leak */
2484 c->fmt_ctx.pb->seekable = 0;
2485 av_write_trailer(ctx);
2486 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2487 c->buffer_ptr = c->pb_buffer;
2488 c->buffer_end = c->pb_buffer + len;
2490 c->last_packet_sent = 1;
2496 /* should convert the format at the same time */
2497 /* send data starting at c->buffer_ptr to the output connection
2498 * (either UDP or TCP)
2500 static int http_send_data(HTTPContext *c)
2505 if (c->buffer_ptr >= c->buffer_end) {
2506 ret = http_prepare_data(c);
2510 /* state change requested */
2513 if (c->is_packetized) {
2514 /* RTP data output */
2515 len = c->buffer_end - c->buffer_ptr;
2517 /* fail safe - should never happen */
2519 c->buffer_ptr = c->buffer_end;
2522 len = (c->buffer_ptr[0] << 24) |
2523 (c->buffer_ptr[1] << 16) |
2524 (c->buffer_ptr[2] << 8) |
2526 if (len > (c->buffer_end - c->buffer_ptr))
2528 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2529 /* nothing to send yet: we can wait */
2533 c->data_count += len;
2534 update_datarate(&c->datarate, c->data_count);
2536 c->stream->bytes_served += len;
2538 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2539 /* RTP packets are sent inside the RTSP TCP connection */
2541 int interleaved_index, size;
2543 HTTPContext *rtsp_c;
2546 /* if no RTSP connection left, error */
2549 /* if already sending something, then wait. */
2550 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2552 if (avio_open_dyn_buf(&pb) < 0)
2554 interleaved_index = c->packet_stream_index * 2;
2555 /* RTCP packets are sent at odd indexes */
2556 if (c->buffer_ptr[1] == 200)
2557 interleaved_index++;
2558 /* write RTSP TCP header */
2560 header[1] = interleaved_index;
2561 header[2] = len >> 8;
2563 avio_write(pb, header, 4);
2564 /* write RTP packet data */
2566 avio_write(pb, c->buffer_ptr, len);
2567 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2568 /* prepare asynchronous TCP sending */
2569 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2570 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2571 c->buffer_ptr += len;
2573 /* send everything we can NOW */
2574 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2575 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2577 rtsp_c->packet_buffer_ptr += len;
2578 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2579 /* if we could not send all the data, we will
2580 * send it later, so a new state is needed to
2581 * "lock" the RTSP TCP connection */
2582 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2585 /* all data has been sent */
2586 av_freep(&c->packet_buffer);
2588 /* send RTP packet directly in UDP */
2590 ffurl_write(c->rtp_handles[c->packet_stream_index],
2591 c->buffer_ptr, len);
2592 c->buffer_ptr += len;
2593 /* here we continue as we can send several packets
2597 /* TCP data output */
2598 len = send(c->fd, c->buffer_ptr,
2599 c->buffer_end - c->buffer_ptr, 0);
2601 if (ff_neterrno() != AVERROR(EAGAIN) &&
2602 ff_neterrno() != AVERROR(EINTR))
2603 /* error : close connection */
2608 c->buffer_ptr += len;
2610 c->data_count += len;
2611 update_datarate(&c->datarate, c->data_count);
2613 c->stream->bytes_served += len;
2621 static int http_start_receive_data(HTTPContext *c)
2627 if (c->stream->feed_opened) {
2628 http_log("Stream feed '%s' was not opened\n",
2629 c->stream->feed_filename);
2630 return AVERROR(EINVAL);
2633 /* Don't permit writing to this one */
2634 if (c->stream->readonly) {
2635 http_log("Cannot write to read-only file '%s'\n",
2636 c->stream->feed_filename);
2637 return AVERROR(EINVAL);
2641 fd = open(c->stream->feed_filename, O_RDWR);
2643 ret = AVERROR(errno);
2644 http_log("Could not open feed file '%s': %s\n",
2645 c->stream->feed_filename, strerror(errno));
2650 if (c->stream->truncate) {
2651 /* truncate feed file */
2652 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2653 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2654 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2655 ret = AVERROR(errno);
2656 http_log("Error truncating feed file '%s': %s\n",
2657 c->stream->feed_filename, strerror(errno));
2661 ret64 = ffm_read_write_index(fd);
2663 http_log("Error reading write index from feed file '%s': %s\n",
2664 c->stream->feed_filename, strerror(errno));
2667 c->stream->feed_write_index = ret64;
2670 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd),
2672 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2673 lseek(fd, 0, SEEK_SET);
2675 /* init buffer input */
2676 c->buffer_ptr = c->buffer;
2677 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2678 c->stream->feed_opened = 1;
2679 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2683 static int http_receive_data(HTTPContext *c)
2686 int len, loop_run = 0;
2688 while (c->chunked_encoding && !c->chunk_size &&
2689 c->buffer_end > c->buffer_ptr) {
2690 /* read chunk header, if present */
2691 len = recv(c->fd, c->buffer_ptr, 1, 0);
2694 if (ff_neterrno() != AVERROR(EAGAIN) &&
2695 ff_neterrno() != AVERROR(EINTR))
2696 /* error : close connection */
2699 } else if (len == 0) {
2700 /* end of connection : close it */
2702 } else if (c->buffer_ptr - c->buffer >= 2 &&
2703 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2704 c->chunk_size = strtol(c->buffer, 0, 16);
2705 if (c->chunk_size == 0) // end of stream
2707 c->buffer_ptr = c->buffer;
2709 } else if (++loop_run > 10)
2710 /* no chunk header, abort */
2716 if (c->buffer_end > c->buffer_ptr) {
2717 len = recv(c->fd, c->buffer_ptr,
2718 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2720 if (ff_neterrno() != AVERROR(EAGAIN) &&
2721 ff_neterrno() != AVERROR(EINTR))
2722 /* error : close connection */
2724 } else if (len == 0)
2725 /* end of connection : close it */
2728 c->chunk_size -= len;
2729 c->buffer_ptr += len;
2730 c->data_count += len;
2731 update_datarate(&c->datarate, c->data_count);
2735 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2736 if (c->buffer[0] != 'f' ||
2737 c->buffer[1] != 'm') {
2738 http_log("Feed stream has become desynchronized -- disconnecting\n");
2743 if (c->buffer_ptr >= c->buffer_end) {
2744 FFServerStream *feed = c->stream;
2745 /* a packet has been received : write it in the store, except
2747 if (c->data_count > FFM_PACKET_SIZE) {
2748 /* XXX: use llseek or url_seek
2749 * XXX: Should probably fail? */
2750 if (lseek(c->feed_fd, feed->feed_write_index, SEEK_SET) == -1)
2751 http_log("Seek to %"PRId64" failed\n", feed->feed_write_index);
2753 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2754 http_log("Error writing to feed file: %s\n", strerror(errno));
2758 feed->feed_write_index += FFM_PACKET_SIZE;
2759 /* update file size */
2760 if (feed->feed_write_index > c->stream->feed_size)
2761 feed->feed_size = feed->feed_write_index;
2763 /* handle wrap around if max file size reached */
2764 if (c->stream->feed_max_size &&
2765 feed->feed_write_index >= c->stream->feed_max_size)
2766 feed->feed_write_index = FFM_PACKET_SIZE;
2769 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2770 http_log("Error writing index to feed file: %s\n",
2775 /* wake up any waiting connections */
2776 for(c1 = first_http_ctx; c1; c1 = c1->next) {
2777 if (c1->state == HTTPSTATE_WAIT_FEED &&
2778 c1->stream->feed == c->stream->feed)
2779 c1->state = HTTPSTATE_SEND_DATA;
2782 /* We have a header in our hands that contains useful data */
2783 AVFormatContext *s = avformat_alloc_context();
2785 AVInputFormat *fmt_in;
2791 /* use feed output format name to find corresponding input format */
2792 fmt_in = av_find_input_format(feed->fmt->name);
2796 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2797 0, NULL, NULL, NULL, NULL);
2804 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2809 /* Now we have the actual streams */
2810 if (s->nb_streams != feed->nb_streams) {
2811 avformat_close_input(&s);
2813 http_log("Feed '%s' stream number does not match registered feed\n",
2814 c->stream->feed_filename);
2818 for (i = 0; i < s->nb_streams; i++) {
2819 AVStream *fst = feed->streams[i];
2820 AVStream *st = s->streams[i];
2821 avcodec_copy_context(fst->codec, st->codec);
2824 avformat_close_input(&s);
2827 c->buffer_ptr = c->buffer;
2832 c->stream->feed_opened = 0;
2834 /* wake up any waiting connections to stop waiting for feed */
2835 for(c1 = first_http_ctx; c1; c1 = c1->next) {
2836 if (c1->state == HTTPSTATE_WAIT_FEED &&
2837 c1->stream->feed == c->stream->feed)
2838 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2843 /********************************************************************/
2846 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2853 str = RTSP_STATUS_CODE2STRING(error_number);
2855 str = "Unknown Error";
2857 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2858 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2860 /* output GMT time */
2863 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2864 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2867 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2869 rtsp_reply_header(c, error_number);
2870 avio_printf(c->pb, "\r\n");
2873 static int rtsp_parse_request(HTTPContext *c)
2875 const char *p, *p1, *p2;
2881 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2883 c->buffer_ptr[0] = '\0';
2886 get_word(cmd, sizeof(cmd), &p);
2887 get_word(url, sizeof(url), &p);
2888 get_word(protocol, sizeof(protocol), &p);
2890 av_strlcpy(c->method, cmd, sizeof(c->method));
2891 av_strlcpy(c->url, url, sizeof(c->url));
2892 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2894 if (avio_open_dyn_buf(&c->pb) < 0) {
2895 /* XXX: cannot do more */
2896 c->pb = NULL; /* safety */
2900 /* check version name */
2901 if (strcmp(protocol, "RTSP/1.0")) {
2902 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2906 /* parse each header line */
2907 /* skip to next line */
2908 while (*p != '\n' && *p != '\0')
2912 while (*p != '\0') {
2913 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2917 if (p2 > p && p2[-1] == '\r')
2919 /* skip empty line */
2923 if (len > sizeof(line) - 1)
2924 len = sizeof(line) - 1;
2925 memcpy(line, p, len);
2927 ff_rtsp_parse_line(NULL, header, line, NULL, NULL);
2931 /* handle sequence number */
2932 c->seq = header->seq;
2934 if (!strcmp(cmd, "DESCRIBE"))
2935 rtsp_cmd_describe(c, url);
2936 else if (!strcmp(cmd, "OPTIONS"))
2937 rtsp_cmd_options(c, url);
2938 else if (!strcmp(cmd, "SETUP"))
2939 rtsp_cmd_setup(c, url, header);
2940 else if (!strcmp(cmd, "PLAY"))
2941 rtsp_cmd_play(c, url, header);
2942 else if (!strcmp(cmd, "PAUSE"))
2943 rtsp_cmd_interrupt(c, url, header, 1);
2944 else if (!strcmp(cmd, "TEARDOWN"))
2945 rtsp_cmd_interrupt(c, url, header, 0);
2947 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2950 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2951 c->pb = NULL; /* safety */
2953 /* XXX: cannot do more */
2956 c->buffer_ptr = c->pb_buffer;
2957 c->buffer_end = c->pb_buffer + len;
2958 c->state = RTSPSTATE_SEND_REPLY;
2962 static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer,
2963 struct in_addr my_ip)
2965 AVFormatContext *avc;
2966 AVStream *avs = NULL;
2967 AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
2968 AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0);
2973 avc = avformat_alloc_context();
2974 if (!avc || !rtp_format)
2977 avc->oformat = rtp_format;
2978 av_dict_set(&avc->metadata, "title",
2979 entry ? entry->value : "No Title", 0);
2980 avc->nb_streams = stream->nb_streams;
2981 if (stream->is_multicast) {
2982 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2983 inet_ntoa(stream->multicast_ip),
2984 stream->multicast_port, stream->multicast_ttl);
2986 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2988 avc->streams = av_malloc_array(avc->nb_streams, sizeof(*avc->streams));
2992 avs = av_malloc_array(avc->nb_streams, sizeof(*avs));
2996 for(i = 0; i < stream->nb_streams; i++) {
2997 avc->streams[i] = &avs[i];
2998 avc->streams[i]->codec = stream->streams[i]->codec;
2999 avcodec_parameters_from_context(stream->streams[i]->codecpar, stream->streams[i]->codec);
3000 avc->streams[i]->codecpar = stream->streams[i]->codecpar;
3002 *pbuffer = av_mallocz(2048);
3005 av_sdp_create(&avc, 1, *pbuffer, 2048);
3008 av_freep(&avc->streams);
3009 av_dict_free(&avc->metadata);
3013 return *pbuffer ? strlen(*pbuffer) : AVERROR(ENOMEM);
3016 static void rtsp_cmd_options(HTTPContext *c, const char *url)
3018 /* rtsp_reply_header(c, RTSP_STATUS_OK); */
3019 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
3020 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
3021 avio_printf(c->pb, "Public: %s\r\n",
3022 "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
3023 avio_printf(c->pb, "\r\n");
3026 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
3028 FFServerStream *stream;
3034 struct sockaddr_in my_addr;
3036 /* find which URL is asked */
3037 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3042 for(stream = config.first_stream; stream; stream = stream->next) {
3043 if (!stream->is_feed &&
3044 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
3045 !strcmp(path, stream->filename)) {
3049 /* no stream found */
3050 rtsp_reply_error(c, RTSP_STATUS_NOT_FOUND);
3054 /* prepare the media description in SDP format */
3056 /* get the host IP */
3057 len = sizeof(my_addr);
3058 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3059 content_length = prepare_sdp_description(stream, &content,
3061 if (content_length < 0) {
3062 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3065 rtsp_reply_header(c, RTSP_STATUS_OK);
3066 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3067 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3068 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3069 avio_printf(c->pb, "\r\n");
3070 avio_write(c->pb, content, content_length);
3074 static HTTPContext *find_rtp_session(const char *session_id)
3078 if (session_id[0] == '\0')
3081 for(c = first_http_ctx; c; c = c->next) {
3082 if (!strcmp(c->session_id, session_id))
3088 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3090 RTSPTransportField *th;
3093 for(i=0;i<h->nb_transports;i++) {
3094 th = &h->transports[i];
3095 if (th->lower_transport == lower_transport)
3101 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3102 RTSPMessageHeader *h)
3104 FFServerStream *stream;
3105 int stream_index, rtp_port, rtcp_port;
3110 RTSPTransportField *th;
3111 struct sockaddr_in dest_addr;
3112 RTSPActionServerSetup setup;
3114 /* find which URL is asked */
3115 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3120 /* now check each stream */
3121 for(stream = config.first_stream; stream; stream = stream->next) {
3122 if (stream->is_feed || !stream->fmt ||
3123 strcmp(stream->fmt->name, "rtp")) {
3126 /* accept aggregate filenames only if single stream */
3127 if (!strcmp(path, stream->filename)) {
3128 if (stream->nb_streams != 1) {
3129 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3136 for(stream_index = 0; stream_index < stream->nb_streams;
3138 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3139 stream->filename, stream_index);
3140 if (!strcmp(path, buf))
3144 /* no stream found */
3145 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3149 /* generate session id if needed */
3150 if (h->session_id[0] == '\0') {
3151 unsigned random0 = av_lfg_get(&random_state);
3152 unsigned random1 = av_lfg_get(&random_state);
3153 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3157 /* find RTP session, and create it if none found */
3158 rtp_c = find_rtp_session(h->session_id);
3160 /* always prefer UDP */
3161 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3163 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3165 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3170 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3171 th->lower_transport);
3173 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3177 /* open input stream */
3178 if (open_input_stream(rtp_c, "") < 0) {
3179 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3184 /* test if stream is OK (test needed because several SETUP needs
3185 * to be done for a given file) */
3186 if (rtp_c->stream != stream) {
3187 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3191 /* test if stream is already set up */
3192 if (rtp_c->rtp_ctx[stream_index]) {
3193 rtsp_reply_error(c, RTSP_STATUS_STATE);
3197 /* check transport */
3198 th = find_transport(h, rtp_c->rtp_protocol);
3199 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3200 th->client_port_min <= 0)) {
3201 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3205 /* setup default options */
3206 setup.transport_option[0] = '\0';
3207 dest_addr = rtp_c->from_addr;
3208 dest_addr.sin_port = htons(th->client_port_min);
3211 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3212 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3216 /* now everything is OK, so we can send the connection parameters */
3217 rtsp_reply_header(c, RTSP_STATUS_OK);
3219 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3221 switch(rtp_c->rtp_protocol) {
3222 case RTSP_LOWER_TRANSPORT_UDP:
3223 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3224 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3225 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3226 "client_port=%d-%d;server_port=%d-%d",
3227 th->client_port_min, th->client_port_max,
3228 rtp_port, rtcp_port);
3230 case RTSP_LOWER_TRANSPORT_TCP:
3231 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3232 stream_index * 2, stream_index * 2 + 1);
3237 if (setup.transport_option[0] != '\0')
3238 avio_printf(c->pb, ";%s", setup.transport_option);
3239 avio_printf(c->pb, "\r\n");
3242 avio_printf(c->pb, "\r\n");
3247 * find an RTP connection by using the session ID. Check consistency
3250 static HTTPContext *find_rtp_session_with_url(const char *url,
3251 const char *session_id)
3259 rtp_c = find_rtp_session(session_id);
3263 /* find which URL is asked */
3264 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3268 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3269 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3270 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3271 rtp_c->stream->filename, s);
3272 if(!strncmp(path, buf, sizeof(buf)))
3273 /* XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE
3274 * if nb_streams>1? */
3278 if (len > 0 && path[len - 1] == '/' &&
3279 !strncmp(path, rtp_c->stream->filename, len - 1))
3284 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3288 rtp_c = find_rtp_session_with_url(url, h->session_id);
3290 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3294 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3295 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3296 rtp_c->state != HTTPSTATE_READY) {
3297 rtsp_reply_error(c, RTSP_STATUS_STATE);
3301 rtp_c->state = HTTPSTATE_SEND_DATA;
3303 /* now everything is OK, so we can send the connection parameters */
3304 rtsp_reply_header(c, RTSP_STATUS_OK);
3306 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3307 avio_printf(c->pb, "\r\n");
3310 static void rtsp_cmd_interrupt(HTTPContext *c, const char *url,
3311 RTSPMessageHeader *h, int pause_only)
3315 rtp_c = find_rtp_session_with_url(url, h->session_id);
3317 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3322 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3323 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3324 rtsp_reply_error(c, RTSP_STATUS_STATE);
3327 rtp_c->state = HTTPSTATE_READY;
3328 rtp_c->first_pts = AV_NOPTS_VALUE;
3331 /* now everything is OK, so we can send the connection parameters */
3332 rtsp_reply_header(c, RTSP_STATUS_OK);
3334 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3335 avio_printf(c->pb, "\r\n");
3338 close_connection(rtp_c);
3341 /********************************************************************/
3344 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3345 FFServerStream *stream,
3346 const char *session_id,
3347 enum RTSPLowerTransport rtp_protocol)
3349 HTTPContext *c = NULL;
3350 const char *proto_str;
3352 /* XXX: should output a warning page when coming
3353 * close to the connection limit */
3354 if (nb_connections >= config.nb_max_connections)
3357 /* add a new connection */
3358 c = av_mallocz(sizeof(HTTPContext));
3363 c->poll_entry = NULL;
3364 c->from_addr = *from_addr;
3365 c->buffer_size = IOBUFFER_INIT_SIZE;
3366 c->buffer = av_malloc(c->buffer_size);
3371 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3372 c->state = HTTPSTATE_READY;
3373 c->is_packetized = 1;
3374 c->rtp_protocol = rtp_protocol;
3376 /* protocol is shown in statistics */
3377 switch(c->rtp_protocol) {
3378 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3379 proto_str = "MCAST";
3381 case RTSP_LOWER_TRANSPORT_UDP:
3384 case RTSP_LOWER_TRANSPORT_TCP:
3391 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3392 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3394 current_bandwidth += stream->bandwidth;
3396 c->next = first_http_ctx;
3402 av_freep(&c->buffer);
3409 * add a new RTP stream in an RTP connection (used in RTSP SETUP
3410 * command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3413 static int rtp_new_av_stream(HTTPContext *c,
3414 int stream_index, struct sockaddr_in *dest_addr,
3415 HTTPContext *rtsp_c)
3417 AVFormatContext *ctx;
3420 URLContext *h = NULL;
3422 int max_packet_size;
3425 /* now we can open the relevant output stream */
3426 ctx = avformat_alloc_context();
3429 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3431 st = avformat_new_stream(ctx, NULL);
3435 av_freep(&st->codec);
3436 av_freep(&st->info);
3437 st_internal = st->internal;
3439 if (!c->stream->feed ||
3440 c->stream->feed == c->stream)
3441 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3444 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3446 st->priv_data = NULL;
3447 st->internal = st_internal;
3449 /* build destination RTP address */
3450 ipaddr = inet_ntoa(dest_addr->sin_addr);
3452 switch(c->rtp_protocol) {
3453 case RTSP_LOWER_TRANSPORT_UDP:
3454 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3457 /* XXX: also pass as parameter to function ? */
3458 if (c->stream->is_multicast) {
3460 ttl = c->stream->multicast_ttl;
3463 snprintf(ctx->filename, sizeof(ctx->filename),
3464 "rtp://%s:%d?multicast=1&ttl=%d",
3465 ipaddr, ntohs(dest_addr->sin_port), ttl);
3467 snprintf(ctx->filename, sizeof(ctx->filename),
3468 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3471 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3473 c->rtp_handles[stream_index] = h;
3474 max_packet_size = h->max_packet_size;
3476 case RTSP_LOWER_TRANSPORT_TCP:
3479 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3485 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3486 ipaddr, ntohs(dest_addr->sin_port),
3487 c->stream->filename, stream_index, c->protocol);
3489 /* normally, no packets should be output here, but the packet size may
3491 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0)
3492 /* XXX: close stream */
3495 if (avformat_write_header(ctx, NULL) < 0) {
3503 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3507 c->rtp_ctx[stream_index] = ctx;
3511 /********************************************************************/
3512 /* ffserver initialization */
3514 /* FIXME: This code should use avformat_new_stream() */
3515 static AVStream *add_av_stream1(FFServerStream *stream,
3516 AVCodecContext *codec, int copy)
3520 if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
3523 fst = av_mallocz(sizeof(AVStream));
3527 fst->codec = avcodec_alloc_context3(codec->codec);
3532 avcodec_copy_context(fst->codec, codec);
3534 /* live streams must use the actual feed's codec since it may be
3535 * updated later to carry extradata needed by them.
3539 fst->priv_data = av_mallocz(sizeof(FeedData));
3540 fst->internal = av_mallocz(sizeof(*fst->internal));
3541 fst->internal->avctx = avcodec_alloc_context3(NULL);
3542 fst->codecpar = avcodec_parameters_alloc();
3543 fst->index = stream->nb_streams;
3544 avpriv_set_pts_info(fst, 33, 1, 90000);
3545 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3546 stream->streams[stream->nb_streams++] = fst;
3550 /* return the stream number in the feed */
3551 static int add_av_stream(FFServerStream *feed, AVStream *st)
3554 AVCodecContext *av, *av1;
3558 for(i=0;i<feed->nb_streams;i++) {
3559 av1 = feed->streams[i]->codec;
3560 if (av1->codec_id == av->codec_id &&
3561 av1->codec_type == av->codec_type &&
3562 av1->bit_rate == av->bit_rate) {
3564 switch(av->codec_type) {
3565 case AVMEDIA_TYPE_AUDIO:
3566 if (av1->channels == av->channels &&
3567 av1->sample_rate == av->sample_rate)
3570 case AVMEDIA_TYPE_VIDEO:
3571 if (av1->width == av->width &&
3572 av1->height == av->height &&
3573 av1->time_base.den == av->time_base.den &&
3574 av1->time_base.num == av->time_base.num &&
3575 av1->gop_size == av->gop_size)
3584 fst = add_av_stream1(feed, av, 0);
3587 if (av_stream_get_recommended_encoder_configuration(st))
3588 av_stream_set_recommended_encoder_configuration(fst,
3589 av_strdup(av_stream_get_recommended_encoder_configuration(st)));
3590 return feed->nb_streams - 1;
3593 static void remove_stream(FFServerStream *stream)
3595 FFServerStream **ps;
3596 ps = &config.first_stream;
3605 /* specific MPEG4 handling : we extract the raw parameters */
3606 static void extract_mpeg4_header(AVFormatContext *infile)
3608 int mpeg4_count, i, size;
3613 infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE;
3616 for(i=0;i<infile->nb_streams;i++) {
3617 st = infile->streams[i];
3618 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3619 st->codec->extradata_size == 0) {
3626 printf("MPEG4 without extra data: trying to find header in %s\n",
3628 while (mpeg4_count > 0) {
3629 if (av_read_frame(infile, &pkt) < 0)
3631 st = infile->streams[pkt.stream_index];
3632 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3633 st->codec->extradata_size == 0) {
3634 av_freep(&st->codec->extradata);
3635 /* fill extradata with the header */
3636 /* XXX: we make hard suppositions here ! */
3638 while (p < pkt.data + pkt.size - 4) {
3639 /* stop when vop header is found */
3640 if (p[0] == 0x00 && p[1] == 0x00 &&
3641 p[2] == 0x01 && p[3] == 0xb6) {
3642 size = p - pkt.data;
3643 st->codec->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
3644 st->codec->extradata_size = size;
3645 memcpy(st->codec->extradata, pkt.data, size);
3652 av_packet_unref(&pkt);
3656 /* compute the needed AVStream for each file */
3657 static void build_file_streams(void)
3659 FFServerStream *stream;
3660 AVFormatContext *infile;
3663 /* gather all streams */
3664 for(stream = config.first_stream; stream; stream = stream->next) {
3667 if (stream->stream_type != STREAM_TYPE_LIVE || stream->feed)
3670 /* the stream comes from a file */
3671 /* try to open the file */
3675 /* specific case: if transport stream output to RTP,
3676 * we use a raw transport stream reader */
3677 if (stream->fmt && !strcmp(stream->fmt->name, "rtp"))
3678 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3680 if (!stream->feed_filename[0]) {
3681 http_log("Unspecified feed file for stream '%s'\n",
3686 http_log("Opening feed file '%s' for stream '%s'\n",
3687 stream->feed_filename, stream->filename);
3689 ret = avformat_open_input(&infile, stream->feed_filename,
3690 stream->ifmt, &stream->in_opts);
3692 http_log("Could not open '%s': %s\n", stream->feed_filename,
3694 /* remove stream (no need to spend more time on it) */
3696 remove_stream(stream);
3698 /* find all the AVStreams inside and reference them in
3700 if (avformat_find_stream_info(infile, NULL) < 0) {
3701 http_log("Could not find codec parameters from '%s'\n",
3702 stream->feed_filename);
3703 avformat_close_input(&infile);
3706 extract_mpeg4_header(infile);
3708 for(i=0;i<infile->nb_streams;i++)
3709 add_av_stream1(stream, infile->streams[i]->codec, 1);
3711 avformat_close_input(&infile);
3717 int check_codec_match(AVCodecContext *ccf, AVCodecContext *ccs, int stream)
3721 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3722 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3723 http_log("Codecs do not match for stream %d\n", stream);
3725 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3726 http_log("Codec bitrates do not match for stream %d\n", stream);
3728 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3729 if (CHECK_CODEC(time_base.den) ||
3730 CHECK_CODEC(time_base.num) ||
3731 CHECK_CODEC(width) ||
3732 CHECK_CODEC(height)) {
3733 http_log("Codec width, height or framerate do not match for stream %d\n", stream);
3736 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3737 if (CHECK_CODEC(sample_rate) ||
3738 CHECK_CODEC(channels) ||
3739 CHECK_CODEC(frame_size)) {
3740 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", stream);
3744 http_log("Unknown codec type for stream %d\n", stream);
3751 /* compute the needed AVStream for each feed */
3752 static int build_feed_streams(void)
3754 FFServerStream *stream, *feed;
3757 /* gather all streams */
3758 for(stream = config.first_stream; stream; stream = stream->next) {
3759 feed = stream->feed;
3763 if (stream->is_feed) {
3764 for(i=0;i<stream->nb_streams;i++)
3765 stream->feed_streams[i] = i;
3768 /* we handle a stream coming from a feed */
3769 for(i=0;i<stream->nb_streams;i++)
3770 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3773 /* create feed files if needed */
3774 for(feed = config.first_feed; feed; feed = feed->next_feed) {
3776 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3777 AVFormatContext *s = NULL;
3780 /* See if it matches */
3782 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) < 0) {
3783 http_log("Deleting feed file '%s' as it appears "
3785 feed->feed_filename);
3789 /* set buffer size */
3790 if (ffio_set_buf_size(s->pb, FFM_PACKET_SIZE) < 0) {
3791 http_log("Failed to set buffer size\n");
3792 avformat_close_input(&s);
3796 /* Now see if it matches */
3797 if (s->nb_streams != feed->nb_streams) {
3798 http_log("Deleting feed file '%s' as stream counts "
3799 "differ (%d != %d)\n",
3800 feed->feed_filename, s->nb_streams, feed->nb_streams);
3805 for(i=0;i<s->nb_streams;i++) {
3808 sf = feed->streams[i];
3811 if (sf->index != ss->index || sf->id != ss->id) {
3812 http_log("Index & Id do not match for stream %d (%s)\n",
3813 i, feed->feed_filename);
3818 matches = check_codec_match (sf->codec, ss->codec, i);
3825 avformat_close_input(&s);
3828 if (feed->readonly) {
3829 http_log("Unable to delete read-only feed file '%s'\n",
3830 feed->feed_filename);
3833 unlink(feed->feed_filename);
3837 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3838 AVFormatContext *s = avformat_alloc_context();
3841 http_log("Failed to allocate context\n");
3845 if (feed->readonly) {
3846 http_log("Unable to create feed file '%s' as it is "
3847 "marked readonly\n",
3848 feed->feed_filename);
3849 avformat_free_context(s);
3853 /* only write the header of the ffm file */
3854 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3855 http_log("Could not open output feed file '%s'\n",
3856 feed->feed_filename);
3857 avformat_free_context(s);
3860 s->oformat = feed->fmt;
3861 s->nb_streams = feed->nb_streams;
3862 s->streams = feed->streams;
3863 if (avformat_write_header(s, NULL) < 0) {
3864 http_log("Container doesn't support the required parameters\n");
3865 avio_closep(&s->pb);
3868 avformat_free_context(s);
3871 /* XXX: need better API */
3872 av_freep(&s->priv_data);
3873 avio_closep(&s->pb);
3876 avformat_free_context(s);
3879 /* get feed size and write index */
3880 fd = open(feed->feed_filename, O_RDONLY);
3882 http_log("Could not open output feed file '%s'\n",
3883 feed->feed_filename);
3887 feed->feed_write_index = FFMAX(ffm_read_write_index(fd),
3889 feed->feed_size = lseek(fd, 0, SEEK_END);
3890 /* ensure that we do not wrap before the end of file */
3891 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3892 feed->feed_max_size = feed->feed_size;
3902 /* compute the bandwidth used by each stream */
3903 static void compute_bandwidth(void)
3907 FFServerStream *stream;
3909 for(stream = config.first_stream; stream; stream = stream->next) {
3911 for(i=0;i<stream->nb_streams;i++) {
3912 AVStream *st = stream->streams[i];
3913 switch(st->codec->codec_type) {
3914 case AVMEDIA_TYPE_AUDIO:
3915 case AVMEDIA_TYPE_VIDEO:
3916 bandwidth += st->codec->bit_rate;
3922 stream->bandwidth = (bandwidth + 999) / 1000;
3926 static void handle_child_exit(int sig)
3932 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
3933 FFServerStream *feed;
3935 for (feed = config.first_feed; feed; feed = feed->next) {
3936 if (feed->pid != pid)
3939 uptime = time(0) - feed->pid_start;
3942 "%s: Pid %"PRId64" exited with status %d after %"PRId64" "
3944 feed->filename, (int64_t) pid, status, (int64_t)uptime);
3947 /* Turn off any more restarts */
3948 ffserver_free_child_args(&feed->child_argv);
3952 need_to_start_children = 1;
3955 static void opt_debug(void)
3958 snprintf(config.logfilename, sizeof(config.logfilename), "-");
3961 void show_help_default(const char *opt, const char *arg)
3963 printf("usage: ffserver [options]\n"
3964 "Hyper fast multi format Audio/Video streaming server\n");
3966 show_help_options(options, "Main options:", 0, 0, 0);
3969 static const OptionDef options[] = {
3970 #include "cmdutils_common_opts.h"
3971 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
3972 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
3973 { "f", HAS_ARG | OPT_STRING, {(void*)&config.filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
3977 int main(int argc, char **argv)
3979 struct sigaction sigact = { { 0 } };
3981 int ret = EXIT_FAILURE;
3984 config.filename = av_strdup("/etc/ffserver.conf");
3986 parse_loglevel(argc, argv, options);
3988 avformat_network_init();
3990 show_banner(argc, argv, options);
3992 my_program_name = argv[0];
3994 parse_options(NULL, argc, argv, options, NULL);
3996 unsetenv("http_proxy"); /* Kill the http_proxy */
3998 av_lfg_init(&random_state, av_get_random_seed());
4000 sigact.sa_handler = handle_child_exit;
4001 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
4002 sigaction(SIGCHLD, &sigact, 0);
4004 if ((cfg_parsed = ffserver_parse_ffconfig(config.filename, &config)) < 0) {
4005 fprintf(stderr, "Error reading configuration file '%s': %s\n",
4006 config.filename, av_err2str(cfg_parsed));
4010 /* open log file if needed */
4011 if (config.logfilename[0] != '\0') {
4012 if (!strcmp(config.logfilename, "-"))
4015 logfile = fopen(config.logfilename, "a");
4016 av_log_set_callback(http_av_log);
4019 build_file_streams();
4021 if (build_feed_streams() < 0) {
4022 http_log("Could not setup feed streams\n");
4026 compute_bandwidth();
4029 signal(SIGPIPE, SIG_IGN);
4031 if (http_server() < 0) {
4032 http_log("Could not start server\n");
4039 av_freep (&config.filename);
4040 avformat_network_deinit();