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, "write_index", pos, AV_OPT_SEARCH_CHILDREN);
377 av_opt_set_int(s, "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"
821 "<html><head><title>Too busy</title></head><body>\r\n"
822 "<p>The server is too busy to serve your request at "
824 "<p>The number of current connections is %u, and this "
825 "exceeds the limit of %u.</p>\r\n"
826 "</body></html>\r\n",
827 nb_connections, config.nb_max_connections);
828 av_assert0(len < sizeof(buffer));
829 if (send(fd, buffer, len, 0) < len)
830 av_log(NULL, AV_LOG_WARNING,
831 "Could not send too-busy reply, send() failed\n");
835 static void new_connection(int server_fd, int is_rtsp)
837 struct sockaddr_in from_addr;
840 HTTPContext *c = NULL;
842 len = sizeof(from_addr);
843 fd = accept(server_fd, (struct sockaddr *)&from_addr,
846 http_log("error during accept %s\n", strerror(errno));
849 if (ff_socket_nonblock(fd, 1) < 0)
850 av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
852 if (nb_connections >= config.nb_max_connections) {
853 http_send_too_busy_reply(fd);
857 /* add a new connection */
858 c = av_mallocz(sizeof(HTTPContext));
863 c->poll_entry = NULL;
864 c->from_addr = from_addr;
865 c->buffer_size = IOBUFFER_INIT_SIZE;
866 c->buffer = av_malloc(c->buffer_size);
870 c->next = first_http_ctx;
874 start_wait_request(c, is_rtsp);
880 av_freep(&c->buffer);
886 static void close_connection(HTTPContext *c)
888 HTTPContext **cp, *c1;
890 AVFormatContext *ctx;
893 /* remove connection from list */
894 cp = &first_http_ctx;
903 /* remove references, if any (XXX: do it faster) */
904 for(c1 = first_http_ctx; c1; c1 = c1->next) {
909 /* remove connection associated resources */
913 /* close each frame parser */
914 for(i=0;i<c->fmt_in->nb_streams;i++) {
915 st = c->fmt_in->streams[i];
916 if (st->codec->codec)
917 avcodec_close(st->codec);
919 avformat_close_input(&c->fmt_in);
922 /* free RTP output streams if any */
925 nb_streams = c->stream->nb_streams;
927 for(i=0;i<nb_streams;i++) {
930 av_write_trailer(ctx);
931 av_dict_free(&ctx->metadata);
932 av_freep(&ctx->streams[0]);
935 ffurl_close(c->rtp_handles[i]);
940 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
942 if (ctx->oformat && avio_open_dyn_buf(&ctx->pb) >= 0) {
943 av_write_trailer(ctx);
944 av_freep(&c->pb_buffer);
945 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
949 for(i=0; i<ctx->nb_streams; i++)
950 av_freep(&ctx->streams[i]);
951 av_freep(&ctx->streams);
952 av_freep(&ctx->priv_data);
954 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
955 current_bandwidth -= c->stream->bandwidth;
957 /* signal that there is no feed if we are the feeder socket */
958 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
959 c->stream->feed_opened = 0;
963 av_freep(&c->pb_buffer);
964 av_freep(&c->packet_buffer);
965 av_freep(&c->buffer);
970 static int handle_connection(HTTPContext *c)
976 case HTTPSTATE_WAIT_REQUEST:
977 case RTSPSTATE_WAIT_REQUEST:
979 if ((c->timeout - cur_time) < 0)
981 if (c->poll_entry->revents & (POLLERR | POLLHUP))
984 /* no need to read if no events */
985 if (!(c->poll_entry->revents & POLLIN))
989 if (!(len = recv(c->fd, c->buffer_ptr, 1, 0)))
993 if (ff_neterrno() != AVERROR(EAGAIN) &&
994 ff_neterrno() != AVERROR(EINTR))
998 /* search for end of request. */
999 c->buffer_ptr += len;
1000 ptr = c->buffer_ptr;
1001 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
1002 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
1003 /* request found : parse it and reply */
1004 if (c->state == HTTPSTATE_WAIT_REQUEST)
1005 ret = http_parse_request(c);
1007 ret = rtsp_parse_request(c);
1011 } else if (ptr >= c->buffer_end) {
1012 /* request too long: cannot do anything */
1014 } else goto read_loop;
1018 case HTTPSTATE_SEND_HEADER:
1019 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1022 /* no need to write if no events */
1023 if (!(c->poll_entry->revents & POLLOUT))
1025 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1027 if (ff_neterrno() != AVERROR(EAGAIN) &&
1028 ff_neterrno() != AVERROR(EINTR)) {
1029 goto close_connection;
1033 c->buffer_ptr += len;
1035 c->stream->bytes_served += len;
1036 c->data_count += len;
1037 if (c->buffer_ptr >= c->buffer_end) {
1038 av_freep(&c->pb_buffer);
1039 /* if error, exit */
1042 /* all the buffer was sent : synchronize to the incoming
1044 c->state = HTTPSTATE_SEND_DATA_HEADER;
1045 c->buffer_ptr = c->buffer_end = c->buffer;
1049 case HTTPSTATE_SEND_DATA:
1050 case HTTPSTATE_SEND_DATA_HEADER:
1051 case HTTPSTATE_SEND_DATA_TRAILER:
1052 /* for packetized output, we consider we can always write (the
1053 * input streams set the speed). It may be better to verify
1054 * that we do not rely too much on the kernel queues */
1055 if (!c->is_packetized) {
1056 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1059 /* no need to read if no events */
1060 if (!(c->poll_entry->revents & POLLOUT))
1063 if (http_send_data(c) < 0)
1065 /* close connection if trailer sent */
1066 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1068 /* Check if it is a single jpeg frame 123 */
1069 if (c->stream->single_frame && c->data_count > c->cur_frame_bytes && c->cur_frame_bytes > 0) {
1070 close_connection(c);
1073 case HTTPSTATE_RECEIVE_DATA:
1074 /* no need to read if no events */
1075 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1077 if (!(c->poll_entry->revents & POLLIN))
1079 if (http_receive_data(c) < 0)
1082 case HTTPSTATE_WAIT_FEED:
1083 /* no need to read if no events */
1084 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1087 /* nothing to do, we'll be waken up by incoming feed packets */
1090 case RTSPSTATE_SEND_REPLY:
1091 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1092 goto close_connection;
1093 /* no need to write if no events */
1094 if (!(c->poll_entry->revents & POLLOUT))
1096 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1098 if (ff_neterrno() != AVERROR(EAGAIN) &&
1099 ff_neterrno() != AVERROR(EINTR)) {
1100 goto close_connection;
1104 c->buffer_ptr += len;
1105 c->data_count += len;
1106 if (c->buffer_ptr >= c->buffer_end) {
1107 /* all the buffer was sent : wait for a new request */
1108 av_freep(&c->pb_buffer);
1109 start_wait_request(c, 1);
1112 case RTSPSTATE_SEND_PACKET:
1113 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1114 av_freep(&c->packet_buffer);
1117 /* no need to write if no events */
1118 if (!(c->poll_entry->revents & POLLOUT))
1120 len = send(c->fd, c->packet_buffer_ptr,
1121 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1123 if (ff_neterrno() != AVERROR(EAGAIN) &&
1124 ff_neterrno() != AVERROR(EINTR)) {
1125 /* error : close connection */
1126 av_freep(&c->packet_buffer);
1131 c->packet_buffer_ptr += len;
1132 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1133 /* all the buffer was sent : wait for a new request */
1134 av_freep(&c->packet_buffer);
1135 c->state = RTSPSTATE_WAIT_REQUEST;
1138 case HTTPSTATE_READY:
1147 av_freep(&c->pb_buffer);
1151 static int extract_rates(char *rates, int ratelen, const char *request)
1155 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1156 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1157 const char *q = p + 7;
1159 while (*q && *q != '\n' && av_isspace(*q))
1162 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1168 memset(rates, 0xff, ratelen);
1171 while (*q && *q != '\n' && *q != ':')
1174 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1178 if (stream_no < ratelen && stream_no >= 0)
1179 rates[stream_no] = rate_no;
1181 while (*q && *q != '\n' && !av_isspace(*q))
1188 p = strchr(p, '\n');
1198 static int find_stream_in_feed(FFServerStream *feed, AVCodecContext *codec,
1202 int best_bitrate = 100000000;
1205 for (i = 0; i < feed->nb_streams; i++) {
1206 AVCodecContext *feed_codec = feed->streams[i]->codec;
1208 if (feed_codec->codec_id != codec->codec_id ||
1209 feed_codec->sample_rate != codec->sample_rate ||
1210 feed_codec->width != codec->width ||
1211 feed_codec->height != codec->height)
1214 /* Potential stream */
1216 /* We want the fastest stream less than bit_rate, or the slowest
1217 * faster than bit_rate
1220 if (feed_codec->bit_rate <= bit_rate) {
1221 if (best_bitrate > bit_rate ||
1222 feed_codec->bit_rate > best_bitrate) {
1223 best_bitrate = feed_codec->bit_rate;
1228 if (feed_codec->bit_rate < best_bitrate) {
1229 best_bitrate = feed_codec->bit_rate;
1236 static int modify_current_stream(HTTPContext *c, char *rates)
1239 FFServerStream *req = c->stream;
1240 int action_required = 0;
1242 /* Not much we can do for a feed */
1246 for (i = 0; i < req->nb_streams; i++) {
1247 AVCodecContext *codec = req->streams[i]->codec;
1251 c->switch_feed_streams[i] = req->feed_streams[i];
1254 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1257 /* Wants off or slow */
1258 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1260 /* This doesn't work well when it turns off the only stream! */
1261 c->switch_feed_streams[i] = -2;
1262 c->feed_streams[i] = -2;
1267 if (c->switch_feed_streams[i] >= 0 &&
1268 c->switch_feed_streams[i] != c->feed_streams[i]) {
1269 action_required = 1;
1273 return action_required;
1276 static void get_word(char *buf, int buf_size, const char **pp)
1282 p += strspn(p, SPACE_CHARS);
1284 while (!av_isspace(*p) && *p != '\0') {
1285 if ((q - buf) < buf_size - 1)
1294 static FFServerIPAddressACL* parse_dynamic_acl(FFServerStream *stream,
1300 FFServerIPAddressACL *acl = NULL;
1304 f = fopen(stream->dynamic_acl, "r");
1306 perror(stream->dynamic_acl);
1310 acl = av_mallocz(sizeof(FFServerIPAddressACL));
1317 while (fgets(line, sizeof(line), f)) {
1320 while (av_isspace(*p))
1322 if (*p == '\0' || *p == '#')
1324 ffserver_get_arg(cmd, sizeof(cmd), &p);
1326 if (!av_strcasecmp(cmd, "ACL"))
1327 ffserver_parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl,
1335 static void free_acl_list(FFServerIPAddressACL *in_acl)
1337 FFServerIPAddressACL *pacl, *pacl2;
1347 static int validate_acl_list(FFServerIPAddressACL *in_acl, HTTPContext *c)
1349 enum FFServerIPAddressAction last_action = IP_DENY;
1350 FFServerIPAddressACL *acl;
1351 struct in_addr *src = &c->from_addr.sin_addr;
1352 unsigned long src_addr = src->s_addr;
1354 for (acl = in_acl; acl; acl = acl->next) {
1355 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1356 return (acl->action == IP_ALLOW) ? 1 : 0;
1357 last_action = acl->action;
1360 /* Nothing matched, so return not the last action */
1361 return (last_action == IP_DENY) ? 1 : 0;
1364 static int validate_acl(FFServerStream *stream, HTTPContext *c)
1367 FFServerIPAddressACL *acl;
1369 /* if stream->acl is null validate_acl_list will return 1 */
1370 ret = validate_acl_list(stream->acl, c);
1372 if (stream->dynamic_acl[0]) {
1373 acl = parse_dynamic_acl(stream, c);
1374 ret = validate_acl_list(acl, c);
1382 * compute the real filename of a file by matching it without its
1383 * extensions to all the stream's filenames
1385 static void compute_real_filename(char *filename, int max_size)
1390 FFServerStream *stream;
1392 av_strlcpy(file1, filename, sizeof(file1));
1393 p = strrchr(file1, '.');
1396 for(stream = config.first_stream; stream; stream = stream->next) {
1397 av_strlcpy(file2, stream->filename, sizeof(file2));
1398 p = strrchr(file2, '.');
1401 if (!strcmp(file1, file2)) {
1402 av_strlcpy(filename, stream->filename, max_size);
1417 /* parse HTTP request and prepare header */
1418 static int http_parse_request(HTTPContext *c)
1422 enum RedirType redir_type;
1424 char info[1024], filename[1024];
1428 char *encoded_msg = NULL;
1429 const char *mime_type;
1430 FFServerStream *stream;
1433 const char *useragent = 0;
1436 get_word(cmd, sizeof(cmd), &p);
1437 av_strlcpy(c->method, cmd, sizeof(c->method));
1439 if (!strcmp(cmd, "GET"))
1441 else if (!strcmp(cmd, "POST"))
1446 get_word(url, sizeof(url), &p);
1447 av_strlcpy(c->url, url, sizeof(c->url));
1449 get_word(protocol, sizeof(protocol), (const char **)&p);
1450 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1453 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1456 http_log("%s - - New connection: %s %s\n",
1457 inet_ntoa(c->from_addr.sin_addr), cmd, url);
1459 /* find the filename and the optional info string in the request */
1460 p1 = strchr(url, '?');
1462 av_strlcpy(info, p1, sizeof(info));
1467 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1469 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1470 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1472 if (*useragent && *useragent != '\n' && av_isspace(*useragent))
1476 p = strchr(p, '\n');
1483 redir_type = REDIR_NONE;
1484 if (av_match_ext(filename, "asx")) {
1485 redir_type = REDIR_ASX;
1486 filename[strlen(filename)-1] = 'f';
1487 } else if (av_match_ext(filename, "asf") &&
1488 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8))) {
1489 /* if this isn't WMP or lookalike, return the redirector file */
1490 redir_type = REDIR_ASF;
1491 } else if (av_match_ext(filename, "rpm,ram")) {
1492 redir_type = REDIR_RAM;
1493 strcpy(filename + strlen(filename)-2, "m");
1494 } else if (av_match_ext(filename, "rtsp")) {
1495 redir_type = REDIR_RTSP;
1496 compute_real_filename(filename, sizeof(filename) - 1);
1497 } else if (av_match_ext(filename, "sdp")) {
1498 redir_type = REDIR_SDP;
1499 compute_real_filename(filename, sizeof(filename) - 1);
1502 /* "redirect" request to index.html */
1503 if (!strlen(filename))
1504 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1506 stream = config.first_stream;
1508 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1510 stream = stream->next;
1513 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1514 http_log("File '%s' not found\n", url);
1519 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1520 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1522 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1523 c->http_error = 301;
1525 snprintf(q, c->buffer_size,
1526 "HTTP/1.0 301 Moved\r\n"
1528 "Content-type: text/html\r\n"
1530 "<html><head><title>Moved</title></head><body>\r\n"
1531 "You should be <a href=\"%s\">redirected</a>.\r\n"
1532 "</body></html>\r\n",
1533 stream->feed_filename, stream->feed_filename);
1535 /* prepare output buffer */
1536 c->buffer_ptr = c->buffer;
1538 c->state = HTTPSTATE_SEND_HEADER;
1542 /* If this is WMP, get the rate information */
1543 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1544 if (modify_current_stream(c, ratebuf)) {
1545 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1546 if (c->switch_feed_streams[i] >= 0)
1547 c->switch_feed_streams[i] = -1;
1552 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1553 current_bandwidth += stream->bandwidth;
1555 /* If already streaming this feed, do not let another feeder start */
1556 if (stream->feed_opened) {
1557 snprintf(msg, sizeof(msg), "This feed is already being received.");
1558 http_log("Feed '%s' already being received\n", stream->feed_filename);
1562 if (c->post == 0 && config.max_bandwidth < current_bandwidth) {
1563 c->http_error = 503;
1565 snprintf(q, c->buffer_size,
1566 "HTTP/1.0 503 Server too busy\r\n"
1567 "Content-type: text/html\r\n"
1569 "<html><head><title>Too busy</title></head><body>\r\n"
1570 "<p>The server is too busy to serve your request at "
1571 "this time.</p>\r\n"
1572 "<p>The bandwidth being served (including your stream) "
1573 "is %"PRIu64"kbit/s, and this exceeds the limit of "
1574 "%"PRIu64"kbit/s.</p>\r\n"
1575 "</body></html>\r\n",
1576 current_bandwidth, config.max_bandwidth);
1578 /* prepare output buffer */
1579 c->buffer_ptr = c->buffer;
1581 c->state = HTTPSTATE_SEND_HEADER;
1585 if (redir_type != REDIR_NONE) {
1586 const char *hostinfo = 0;
1588 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1589 if (av_strncasecmp(p, "Host:", 5) == 0) {
1593 p = strchr(p, '\n');
1604 while (av_isspace(*hostinfo))
1607 eoh = strchr(hostinfo, '\n');
1609 if (eoh[-1] == '\r')
1612 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1613 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1614 hostbuf[eoh - hostinfo] = 0;
1616 c->http_error = 200;
1618 switch(redir_type) {
1620 snprintf(q, c->buffer_size,
1621 "HTTP/1.0 200 ASX Follows\r\n"
1622 "Content-type: video/x-ms-asf\r\n"
1624 "<ASX Version=\"3\">\r\n"
1625 //"<!-- Autogenerated by ffserver -->\r\n"
1626 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1627 "</ASX>\r\n", hostbuf, filename, info);
1631 snprintf(q, c->buffer_size,
1632 "HTTP/1.0 200 RAM Follows\r\n"
1633 "Content-type: audio/x-pn-realaudio\r\n"
1635 "# Autogenerated by ffserver\r\n"
1636 "http://%s/%s%s\r\n", hostbuf, filename, info);
1640 snprintf(q, c->buffer_size,
1641 "HTTP/1.0 200 ASF Redirect follows\r\n"
1642 "Content-type: video/x-ms-asf\r\n"
1645 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1650 char hostname[256], *p;
1651 /* extract only hostname */
1652 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1653 p = strrchr(hostname, ':');
1656 snprintf(q, c->buffer_size,
1657 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1658 /* XXX: incorrect MIME type ? */
1659 "Content-type: application/x-rtsp\r\n"
1661 "rtsp://%s:%d/%s\r\n", hostname, ntohs(config.rtsp_addr.sin_port), filename);
1670 struct sockaddr_in my_addr;
1672 snprintf(q, c->buffer_size,
1673 "HTTP/1.0 200 OK\r\n"
1674 "Content-type: application/sdp\r\n"
1678 len = sizeof(my_addr);
1680 /* XXX: Should probably fail? */
1681 if (getsockname(c->fd, (struct sockaddr *)&my_addr, &len))
1682 http_log("getsockname() failed\n");
1684 /* XXX: should use a dynamic buffer */
1685 sdp_data_size = prepare_sdp_description(stream,
1688 if (sdp_data_size > 0) {
1689 memcpy(q, sdp_data, sdp_data_size);
1701 /* prepare output buffer */
1702 c->buffer_ptr = c->buffer;
1704 c->state = HTTPSTATE_SEND_HEADER;
1710 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1714 stream->conns_served++;
1716 /* XXX: add there authenticate and IP match */
1719 /* if post, it means a feed is being sent */
1720 if (!stream->is_feed) {
1721 /* However it might be a status report from WMP! Let us log the
1722 * data as it might come handy one day. */
1723 const char *logline = 0;
1726 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1727 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1731 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1732 client_id = strtol(p + 18, 0, 10);
1733 p = strchr(p, '\n');
1741 char *eol = strchr(logline, '\n');
1746 if (eol[-1] == '\r')
1748 http_log("%.*s\n", (int) (eol - logline), logline);
1749 c->suppress_log = 1;
1754 http_log("\nGot request:\n%s\n", c->buffer);
1757 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1760 /* Now we have to find the client_id */
1761 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1762 if (wmpc->wmp_client_id == client_id)
1766 if (wmpc && modify_current_stream(wmpc, ratebuf))
1767 wmpc->switch_pending = 1;
1770 snprintf(msg, sizeof(msg), "POST command not handled");
1774 if (http_start_receive_data(c) < 0) {
1775 snprintf(msg, sizeof(msg), "could not open feed");
1779 c->state = HTTPSTATE_RECEIVE_DATA;
1784 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1785 http_log("\nGot request:\n%s\n", c->buffer);
1788 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1791 /* open input stream */
1792 if (open_input_stream(c, info) < 0) {
1793 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1797 /* prepare HTTP header */
1799 av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n");
1800 mime_type = c->stream->fmt->mime_type;
1802 mime_type = "application/x-octet-stream";
1803 av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n");
1805 /* for asf, we need extra headers */
1806 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1807 /* Need to allocate a client id */
1809 c->wmp_client_id = av_lfg_get(&random_state);
1811 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);
1813 av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type);
1814 av_strlcatf(c->buffer, c->buffer_size, "\r\n");
1815 q = c->buffer + strlen(c->buffer);
1817 /* prepare output buffer */
1819 c->buffer_ptr = c->buffer;
1821 c->state = HTTPSTATE_SEND_HEADER;
1824 c->http_error = 404;
1826 if (!htmlencode(msg, &encoded_msg)) {
1827 http_log("Could not encode filename '%s' as HTML\n", msg);
1829 snprintf(q, c->buffer_size,
1830 "HTTP/1.0 404 Not Found\r\n"
1831 "Content-type: text/html\r\n"
1836 "<meta charset=\"UTF-8\">\n"
1837 "<title>404 Not Found</title>\n"
1840 "</html>\n", encoded_msg? encoded_msg : "File not found");
1842 /* prepare output buffer */
1843 c->buffer_ptr = c->buffer;
1845 c->state = HTTPSTATE_SEND_HEADER;
1846 av_freep(&encoded_msg);
1850 /* horrible: we use this value to avoid
1851 * going to the send data state */
1852 c->http_error = 200;
1853 c->state = HTTPSTATE_SEND_HEADER;
1857 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1859 static const char suffix[] = " kMGTP";
1862 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1864 avio_printf(pb, "%"PRId64"%c", count, *s);
1867 static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream)
1870 const char *type = "unknown";
1871 char parameters[64];
1875 stream_no = stream->nb_streams;
1877 avio_printf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>"
1878 "type<th>kbit/s<th align=left>codec<th align=left>"
1881 for (i = 0; i < stream_no; i++) {
1882 st = stream->streams[i];
1883 codec = avcodec_find_encoder(st->codec->codec_id);
1887 switch(st->codec->codec_type) {
1888 case AVMEDIA_TYPE_AUDIO:
1890 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz",
1891 st->codec->channels, st->codec->sample_rate);
1893 case AVMEDIA_TYPE_VIDEO:
1895 snprintf(parameters, sizeof(parameters),
1896 "%dx%d, q=%d-%d, fps=%d", st->codec->width,
1897 st->codec->height, st->codec->qmin, st->codec->qmax,
1898 st->codec->time_base.den / st->codec->time_base.num);
1904 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%"PRId64
1906 i, type, (int64_t)st->codec->bit_rate/1000,
1907 codec ? codec->name : "", parameters);
1910 avio_printf(pb, "</table>\n");
1913 static void compute_status(HTTPContext *c)
1916 FFServerStream *stream;
1922 if (avio_open_dyn_buf(&pb) < 0) {
1923 /* XXX: return an error ? */
1924 c->buffer_ptr = c->buffer;
1925 c->buffer_end = c->buffer;
1929 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1930 avio_printf(pb, "Content-type: text/html\r\n");
1931 avio_printf(pb, "Pragma: no-cache\r\n");
1932 avio_printf(pb, "\r\n");
1934 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1935 if (c->stream->feed_filename[0])
1936 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n",
1937 c->stream->feed_filename);
1938 avio_printf(pb, "</head>\n<body>");
1939 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1941 avio_printf(pb, "<h2>Available Streams</h2>\n");
1942 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1943 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");
1944 stream = config.first_stream;
1946 char sfilename[1024];
1949 if (stream->feed == stream) {
1950 stream = stream->next;
1954 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1955 eosf = sfilename + strlen(sfilename);
1956 if (eosf - sfilename >= 4) {
1957 if (strcmp(eosf - 4, ".asf") == 0)
1958 strcpy(eosf - 4, ".asx");
1959 else if (strcmp(eosf - 3, ".rm") == 0)
1960 strcpy(eosf - 3, ".ram");
1961 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
1962 /* generate a sample RTSP director if
1963 * unicast. Generate an SDP redirector if
1965 eosf = strrchr(sfilename, '.');
1967 eosf = sfilename + strlen(sfilename);
1968 if (stream->is_multicast)
1969 strcpy(eosf, ".sdp");
1971 strcpy(eosf, ".rtsp");
1975 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
1976 sfilename, stream->filename);
1977 avio_printf(pb, "<td align=right> %d <td align=right> ",
1978 stream->conns_served);
1979 fmt_bytecount(pb, stream->bytes_served);
1981 switch(stream->stream_type) {
1982 case STREAM_TYPE_LIVE: {
1983 int audio_bit_rate = 0;
1984 int video_bit_rate = 0;
1985 const char *audio_codec_name = "";
1986 const char *video_codec_name = "";
1987 const char *audio_codec_name_extra = "";
1988 const char *video_codec_name_extra = "";
1990 for(i=0;i<stream->nb_streams;i++) {
1991 AVStream *st = stream->streams[i];
1992 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1994 switch(st->codec->codec_type) {
1995 case AVMEDIA_TYPE_AUDIO:
1996 audio_bit_rate += st->codec->bit_rate;
1998 if (*audio_codec_name)
1999 audio_codec_name_extra = "...";
2000 audio_codec_name = codec->name;
2003 case AVMEDIA_TYPE_VIDEO:
2004 video_bit_rate += st->codec->bit_rate;
2006 if (*video_codec_name)
2007 video_codec_name_extra = "...";
2008 video_codec_name = codec->name;
2011 case AVMEDIA_TYPE_DATA:
2012 video_bit_rate += st->codec->bit_rate;
2019 avio_printf(pb, "<td align=center> %s <td align=right> %d "
2020 "<td align=right> %d <td> %s %s <td align=right> "
2022 stream->fmt->name, stream->bandwidth,
2023 video_bit_rate / 1000, video_codec_name,
2024 video_codec_name_extra, audio_bit_rate / 1000,
2025 audio_codec_name, audio_codec_name_extra);
2028 avio_printf(pb, "<td>%s", stream->feed->filename);
2030 avio_printf(pb, "<td>%s", stream->feed_filename);
2031 avio_printf(pb, "\n");
2035 avio_printf(pb, "<td align=center> - <td align=right> - "
2036 "<td align=right> - <td><td align=right> - <td>\n");
2039 stream = stream->next;
2041 avio_printf(pb, "</table>\n");
2043 stream = config.first_stream;
2046 if (stream->feed != stream) {
2047 stream = stream->next;
2051 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2053 avio_printf(pb, "Running as pid %"PRId64".\n", (int64_t) stream->pid);
2060 /* This is somewhat linux specific I guess */
2061 snprintf(ps_cmd, sizeof(ps_cmd),
2062 "ps -o \"%%cpu,cputime\" --no-headers %"PRId64"",
2063 (int64_t) stream->pid);
2065 pid_stat = popen(ps_cmd, "r");
2070 if (fscanf(pid_stat, "%9s %63s", cpuperc, cpuused) == 2) {
2071 avio_printf(pb, "Currently using %s%% of the cpu. "
2072 "Total time used %s.\n",
2080 avio_printf(pb, "<p>");
2083 print_stream_params(pb, stream);
2084 stream = stream->next;
2087 /* connection status */
2088 avio_printf(pb, "<h2>Connection Status</h2>\n");
2090 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2091 nb_connections, config.nb_max_connections);
2093 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2094 current_bandwidth, config.max_bandwidth);
2096 avio_printf(pb, "<table>\n");
2097 avio_printf(pb, "<tr><th>#<th>File<th>IP<th>Proto<th>State<th>Target "
2098 "bit/s<th>Actual bit/s<th>Bytes transferred\n");
2099 c1 = first_http_ctx;
2107 for (j = 0; j < c1->stream->nb_streams; j++) {
2108 if (!c1->stream->feed)
2109 bitrate += c1->stream->streams[j]->codec->bit_rate;
2110 else if (c1->feed_streams[j] >= 0)
2111 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
2116 p = inet_ntoa(c1->from_addr.sin_addr);
2117 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s"
2119 i, c1->stream ? c1->stream->filename : "",
2120 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", p,
2121 c1->protocol, http_state[c1->state]);
2122 fmt_bytecount(pb, bitrate);
2123 avio_printf(pb, "<td align=right>");
2124 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2125 avio_printf(pb, "<td align=right>");
2126 fmt_bytecount(pb, c1->data_count);
2127 avio_printf(pb, "\n");
2130 avio_printf(pb, "</table>\n");
2135 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2136 avio_printf(pb, "</body>\n</html>\n");
2138 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2139 c->buffer_ptr = c->pb_buffer;
2140 c->buffer_end = c->pb_buffer + len;
2143 static int open_input_stream(HTTPContext *c, const char *info)
2146 char input_filename[1024];
2147 AVFormatContext *s = NULL;
2148 int buf_size, i, ret;
2151 /* find file name */
2152 if (c->stream->feed) {
2153 strcpy(input_filename, c->stream->feed->feed_filename);
2154 buf_size = FFM_PACKET_SIZE;
2155 /* compute position (absolute time) */
2156 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2157 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) {
2158 http_log("Invalid date specification '%s' for stream\n", buf);
2161 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2162 int prebuffer = strtol(buf, 0, 10);
2163 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2165 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2167 strcpy(input_filename, c->stream->feed_filename);
2169 /* compute position (relative time) */
2170 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2171 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) {
2172 http_log("Invalid date specification '%s' for stream\n", buf);
2178 if (!input_filename[0]) {
2179 http_log("No filename was specified for stream\n");
2180 return AVERROR(EINVAL);
2184 ret = avformat_open_input(&s, input_filename, c->stream->ifmt,
2185 &c->stream->in_opts);
2187 http_log("Could not open input '%s': %s\n",
2188 input_filename, av_err2str(ret));
2192 /* set buffer size */
2194 ret = ffio_set_buf_size(s->pb, buf_size);
2196 http_log("Failed to set buffer size\n");
2201 s->flags |= AVFMT_FLAG_GENPTS;
2203 if (strcmp(s->iformat->name, "ffm") &&
2204 (ret = avformat_find_stream_info(c->fmt_in, NULL)) < 0) {
2205 http_log("Could not find stream info for input '%s'\n", input_filename);
2206 avformat_close_input(&s);
2210 /* choose stream as clock source (we favor the video stream if
2211 * present) for packet sending */
2212 c->pts_stream_index = 0;
2213 for(i=0;i<c->stream->nb_streams;i++) {
2214 if (c->pts_stream_index == 0 &&
2215 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2216 c->pts_stream_index = i;
2220 if (c->fmt_in->iformat->read_seek)
2221 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2222 /* set the start time (needed for maxtime and RTP packet timing) */
2223 c->start_time = cur_time;
2224 c->first_pts = AV_NOPTS_VALUE;
2228 /* return the server clock (in us) */
2229 static int64_t get_server_clock(HTTPContext *c)
2231 /* compute current pts value from system time */
2232 return (cur_time - c->start_time) * 1000;
2235 /* return the estimated time (in us) at which the current packet must be sent */
2236 static int64_t get_packet_send_clock(HTTPContext *c)
2238 int bytes_left, bytes_sent, frame_bytes;
2240 frame_bytes = c->cur_frame_bytes;
2241 if (frame_bytes <= 0)
2244 bytes_left = c->buffer_end - c->buffer_ptr;
2245 bytes_sent = frame_bytes - bytes_left;
2246 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2250 static int http_prepare_data(HTTPContext *c)
2253 AVFormatContext *ctx;
2255 av_freep(&c->pb_buffer);
2257 case HTTPSTATE_SEND_DATA_HEADER:
2258 ctx = avformat_alloc_context();
2260 return AVERROR(ENOMEM);
2263 av_dict_copy(&(c->fmt_ctx.metadata), c->stream->metadata, 0);
2264 c->fmt_ctx.streams = av_mallocz_array(c->stream->nb_streams,
2265 sizeof(AVStream *));
2266 if (!c->fmt_ctx.streams)
2267 return AVERROR(ENOMEM);
2269 for(i=0;i<c->stream->nb_streams;i++) {
2271 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2273 /* if file or feed, then just take streams from FFServerStream
2275 if (!c->stream->feed ||
2276 c->stream->feed == c->stream)
2277 src = c->stream->streams[i];
2279 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2281 *(c->fmt_ctx.streams[i]) = *src;
2282 c->fmt_ctx.streams[i]->priv_data = 0;
2283 /* XXX: should be done in AVStream, not in codec */
2284 c->fmt_ctx.streams[i]->codec->frame_number = 0;
2286 /* set output format parameters */
2287 c->fmt_ctx.oformat = c->stream->fmt;
2288 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2290 c->got_key_frame = 0;
2292 /* prepare header and save header data in a stream */
2293 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2294 /* XXX: potential leak */
2297 c->fmt_ctx.pb->seekable = 0;
2300 * HACK to avoid MPEG-PS muxer to spit many underflow errors
2301 * Default value from FFmpeg
2302 * Try to set it using configuration option
2304 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2306 if ((ret = avformat_write_header(&c->fmt_ctx, NULL)) < 0) {
2307 http_log("Error writing output header for stream '%s': %s\n",
2308 c->stream->filename, av_err2str(ret));
2311 av_dict_free(&c->fmt_ctx.metadata);
2313 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2314 c->buffer_ptr = c->pb_buffer;
2315 c->buffer_end = c->pb_buffer + len;
2317 c->state = HTTPSTATE_SEND_DATA;
2318 c->last_packet_sent = 0;
2320 case HTTPSTATE_SEND_DATA:
2321 /* find a new packet */
2322 /* read a packet from the input stream */
2323 if (c->stream->feed)
2324 ffm_set_write_index(c->fmt_in,
2325 c->stream->feed->feed_write_index,
2326 c->stream->feed->feed_size);
2328 if (c->stream->max_time &&
2329 c->stream->max_time + c->start_time - cur_time < 0)
2330 /* We have timed out */
2331 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2335 ret = av_read_frame(c->fmt_in, &pkt);
2337 if (c->stream->feed) {
2338 /* if coming from feed, it means we reached the end of the
2339 * ffm file, so must wait for more data */
2340 c->state = HTTPSTATE_WAIT_FEED;
2341 return 1; /* state changed */
2343 if (ret == AVERROR(EAGAIN)) {
2344 /* input not ready, come back later */
2347 if (c->stream->loop) {
2348 avformat_close_input(&c->fmt_in);
2349 if (open_input_stream(c, "") < 0)
2354 /* must send trailer now because EOF or error */
2355 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2358 int source_index = pkt.stream_index;
2359 /* update first pts if needed */
2360 if (c->first_pts == AV_NOPTS_VALUE && pkt.dts != AV_NOPTS_VALUE) {
2361 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2362 c->start_time = cur_time;
2364 /* send it to the appropriate stream */
2365 if (c->stream->feed) {
2366 /* if coming from a feed, select the right stream */
2367 if (c->switch_pending) {
2368 c->switch_pending = 0;
2369 for(i=0;i<c->stream->nb_streams;i++) {
2370 if (c->switch_feed_streams[i] == pkt.stream_index)
2371 if (pkt.flags & AV_PKT_FLAG_KEY)
2372 c->switch_feed_streams[i] = -1;
2373 if (c->switch_feed_streams[i] >= 0)
2374 c->switch_pending = 1;
2377 for(i=0;i<c->stream->nb_streams;i++) {
2378 if (c->stream->feed_streams[i] == pkt.stream_index) {
2379 AVStream *st = c->fmt_in->streams[source_index];
2380 pkt.stream_index = i;
2381 if (pkt.flags & AV_PKT_FLAG_KEY &&
2382 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
2383 c->stream->nb_streams == 1))
2384 c->got_key_frame = 1;
2385 if (!c->stream->send_on_key || c->got_key_frame)
2390 AVCodecContext *codec;
2391 AVStream *ist, *ost;
2393 ist = c->fmt_in->streams[source_index];
2394 /* specific handling for RTP: we use several
2395 * output streams (one for each RTP connection).
2396 * XXX: need more abstract handling */
2397 if (c->is_packetized) {
2398 /* compute send time and duration */
2399 if (pkt.dts != AV_NOPTS_VALUE) {
2400 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2401 c->cur_pts -= c->first_pts;
2403 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2404 /* find RTP context */
2405 c->packet_stream_index = pkt.stream_index;
2406 ctx = c->rtp_ctx[c->packet_stream_index];
2408 av_packet_unref(&pkt);
2411 codec = ctx->streams[0]->codec;
2412 /* only one stream per RTP connection */
2413 pkt.stream_index = 0;
2417 codec = ctx->streams[pkt.stream_index]->codec;
2420 if (c->is_packetized) {
2421 int max_packet_size;
2422 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2423 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2425 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2426 ret = ffio_open_dyn_packet_buf(&ctx->pb,
2429 ret = avio_open_dyn_buf(&ctx->pb);
2432 /* XXX: potential leak */
2435 ost = ctx->streams[pkt.stream_index];
2437 ctx->pb->seekable = 0;
2438 if (pkt.dts != AV_NOPTS_VALUE)
2439 pkt.dts = av_rescale_q(pkt.dts, ist->time_base,
2441 if (pkt.pts != AV_NOPTS_VALUE)
2442 pkt.pts = av_rescale_q(pkt.pts, ist->time_base,
2444 pkt.duration = av_rescale_q(pkt.duration, ist->time_base,
2446 if ((ret = av_write_frame(ctx, &pkt)) < 0) {
2447 http_log("Error writing frame to output for stream '%s': %s\n",
2448 c->stream->filename, av_err2str(ret));
2449 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2452 av_freep(&c->pb_buffer);
2453 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2455 c->cur_frame_bytes = len;
2456 c->buffer_ptr = c->pb_buffer;
2457 c->buffer_end = c->pb_buffer + len;
2459 codec->frame_number++;
2461 av_packet_unref(&pkt);
2465 av_packet_unref(&pkt);
2470 case HTTPSTATE_SEND_DATA_TRAILER:
2471 /* last packet test ? */
2472 if (c->last_packet_sent || c->is_packetized)
2475 /* prepare header */
2476 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2477 /* XXX: potential leak */
2480 c->fmt_ctx.pb->seekable = 0;
2481 av_write_trailer(ctx);
2482 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2483 c->buffer_ptr = c->pb_buffer;
2484 c->buffer_end = c->pb_buffer + len;
2486 c->last_packet_sent = 1;
2492 /* should convert the format at the same time */
2493 /* send data starting at c->buffer_ptr to the output connection
2494 * (either UDP or TCP)
2496 static int http_send_data(HTTPContext *c)
2501 if (c->buffer_ptr >= c->buffer_end) {
2502 ret = http_prepare_data(c);
2506 /* state change requested */
2509 if (c->is_packetized) {
2510 /* RTP data output */
2511 len = c->buffer_end - c->buffer_ptr;
2513 /* fail safe - should never happen */
2515 c->buffer_ptr = c->buffer_end;
2518 len = (c->buffer_ptr[0] << 24) |
2519 (c->buffer_ptr[1] << 16) |
2520 (c->buffer_ptr[2] << 8) |
2522 if (len > (c->buffer_end - c->buffer_ptr))
2524 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2525 /* nothing to send yet: we can wait */
2529 c->data_count += len;
2530 update_datarate(&c->datarate, c->data_count);
2532 c->stream->bytes_served += len;
2534 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2535 /* RTP packets are sent inside the RTSP TCP connection */
2537 int interleaved_index, size;
2539 HTTPContext *rtsp_c;
2542 /* if no RTSP connection left, error */
2545 /* if already sending something, then wait. */
2546 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2548 if (avio_open_dyn_buf(&pb) < 0)
2550 interleaved_index = c->packet_stream_index * 2;
2551 /* RTCP packets are sent at odd indexes */
2552 if (c->buffer_ptr[1] == 200)
2553 interleaved_index++;
2554 /* write RTSP TCP header */
2556 header[1] = interleaved_index;
2557 header[2] = len >> 8;
2559 avio_write(pb, header, 4);
2560 /* write RTP packet data */
2562 avio_write(pb, c->buffer_ptr, len);
2563 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2564 /* prepare asynchronous TCP sending */
2565 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2566 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2567 c->buffer_ptr += len;
2569 /* send everything we can NOW */
2570 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2571 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2573 rtsp_c->packet_buffer_ptr += len;
2574 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2575 /* if we could not send all the data, we will
2576 * send it later, so a new state is needed to
2577 * "lock" the RTSP TCP connection */
2578 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2581 /* all data has been sent */
2582 av_freep(&c->packet_buffer);
2584 /* send RTP packet directly in UDP */
2586 ffurl_write(c->rtp_handles[c->packet_stream_index],
2587 c->buffer_ptr, len);
2588 c->buffer_ptr += len;
2589 /* here we continue as we can send several packets
2593 /* TCP data output */
2594 len = send(c->fd, c->buffer_ptr,
2595 c->buffer_end - c->buffer_ptr, 0);
2597 if (ff_neterrno() != AVERROR(EAGAIN) &&
2598 ff_neterrno() != AVERROR(EINTR))
2599 /* error : close connection */
2604 c->buffer_ptr += len;
2606 c->data_count += len;
2607 update_datarate(&c->datarate, c->data_count);
2609 c->stream->bytes_served += len;
2617 static int http_start_receive_data(HTTPContext *c)
2622 if (c->stream->feed_opened) {
2623 http_log("Stream feed '%s' was not opened\n",
2624 c->stream->feed_filename);
2625 return AVERROR(EINVAL);
2628 /* Don't permit writing to this one */
2629 if (c->stream->readonly) {
2630 http_log("Cannot write to read-only file '%s'\n",
2631 c->stream->feed_filename);
2632 return AVERROR(EINVAL);
2636 fd = open(c->stream->feed_filename, O_RDWR);
2638 ret = AVERROR(errno);
2639 http_log("Could not open feed file '%s': %s\n",
2640 c->stream->feed_filename, strerror(errno));
2645 if (c->stream->truncate) {
2646 /* truncate feed file */
2647 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2648 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2649 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2650 ret = AVERROR(errno);
2651 http_log("Error truncating feed file '%s': %s\n",
2652 c->stream->feed_filename, strerror(errno));
2656 ret = ffm_read_write_index(fd);
2658 http_log("Error reading write index from feed file '%s': %s\n",
2659 c->stream->feed_filename, strerror(errno));
2662 c->stream->feed_write_index = ret;
2665 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd),
2667 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2668 lseek(fd, 0, SEEK_SET);
2670 /* init buffer input */
2671 c->buffer_ptr = c->buffer;
2672 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2673 c->stream->feed_opened = 1;
2674 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2678 static int http_receive_data(HTTPContext *c)
2681 int len, loop_run = 0;
2683 while (c->chunked_encoding && !c->chunk_size &&
2684 c->buffer_end > c->buffer_ptr) {
2685 /* read chunk header, if present */
2686 len = recv(c->fd, c->buffer_ptr, 1, 0);
2689 if (ff_neterrno() != AVERROR(EAGAIN) &&
2690 ff_neterrno() != AVERROR(EINTR))
2691 /* error : close connection */
2694 } else if (len == 0) {
2695 /* end of connection : close it */
2697 } else if (c->buffer_ptr - c->buffer >= 2 &&
2698 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2699 c->chunk_size = strtol(c->buffer, 0, 16);
2700 if (c->chunk_size == 0) // end of stream
2702 c->buffer_ptr = c->buffer;
2704 } else if (++loop_run > 10)
2705 /* no chunk header, abort */
2711 if (c->buffer_end > c->buffer_ptr) {
2712 len = recv(c->fd, c->buffer_ptr,
2713 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2715 if (ff_neterrno() != AVERROR(EAGAIN) &&
2716 ff_neterrno() != AVERROR(EINTR))
2717 /* error : close connection */
2719 } else if (len == 0)
2720 /* end of connection : close it */
2723 c->chunk_size -= len;
2724 c->buffer_ptr += len;
2725 c->data_count += len;
2726 update_datarate(&c->datarate, c->data_count);
2730 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2731 if (c->buffer[0] != 'f' ||
2732 c->buffer[1] != 'm') {
2733 http_log("Feed stream has become desynchronized -- disconnecting\n");
2738 if (c->buffer_ptr >= c->buffer_end) {
2739 FFServerStream *feed = c->stream;
2740 /* a packet has been received : write it in the store, except
2742 if (c->data_count > FFM_PACKET_SIZE) {
2743 /* XXX: use llseek or url_seek
2744 * XXX: Should probably fail? */
2745 if (lseek(c->feed_fd, feed->feed_write_index, SEEK_SET) == -1)
2746 http_log("Seek to %"PRId64" failed\n", feed->feed_write_index);
2748 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2749 http_log("Error writing to feed file: %s\n", strerror(errno));
2753 feed->feed_write_index += FFM_PACKET_SIZE;
2754 /* update file size */
2755 if (feed->feed_write_index > c->stream->feed_size)
2756 feed->feed_size = feed->feed_write_index;
2758 /* handle wrap around if max file size reached */
2759 if (c->stream->feed_max_size &&
2760 feed->feed_write_index >= c->stream->feed_max_size)
2761 feed->feed_write_index = FFM_PACKET_SIZE;
2764 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2765 http_log("Error writing index to feed file: %s\n",
2770 /* wake up any waiting connections */
2771 for(c1 = first_http_ctx; c1; c1 = c1->next) {
2772 if (c1->state == HTTPSTATE_WAIT_FEED &&
2773 c1->stream->feed == c->stream->feed)
2774 c1->state = HTTPSTATE_SEND_DATA;
2777 /* We have a header in our hands that contains useful data */
2778 AVFormatContext *s = avformat_alloc_context();
2780 AVInputFormat *fmt_in;
2786 /* use feed output format name to find corresponding input format */
2787 fmt_in = av_find_input_format(feed->fmt->name);
2791 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2792 0, NULL, NULL, NULL, NULL);
2799 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2804 /* Now we have the actual streams */
2805 if (s->nb_streams != feed->nb_streams) {
2806 avformat_close_input(&s);
2808 http_log("Feed '%s' stream number does not match registered feed\n",
2809 c->stream->feed_filename);
2813 for (i = 0; i < s->nb_streams; i++) {
2814 AVStream *fst = feed->streams[i];
2815 AVStream *st = s->streams[i];
2816 avcodec_copy_context(fst->codec, st->codec);
2819 avformat_close_input(&s);
2822 c->buffer_ptr = c->buffer;
2827 c->stream->feed_opened = 0;
2829 /* wake up any waiting connections to stop waiting for feed */
2830 for(c1 = first_http_ctx; c1; c1 = c1->next) {
2831 if (c1->state == HTTPSTATE_WAIT_FEED &&
2832 c1->stream->feed == c->stream->feed)
2833 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2838 /********************************************************************/
2841 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2848 str = RTSP_STATUS_CODE2STRING(error_number);
2850 str = "Unknown Error";
2852 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2853 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2855 /* output GMT time */
2858 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2859 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2862 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2864 rtsp_reply_header(c, error_number);
2865 avio_printf(c->pb, "\r\n");
2868 static int rtsp_parse_request(HTTPContext *c)
2870 const char *p, *p1, *p2;
2876 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2878 c->buffer_ptr[0] = '\0';
2881 get_word(cmd, sizeof(cmd), &p);
2882 get_word(url, sizeof(url), &p);
2883 get_word(protocol, sizeof(protocol), &p);
2885 av_strlcpy(c->method, cmd, sizeof(c->method));
2886 av_strlcpy(c->url, url, sizeof(c->url));
2887 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2889 if (avio_open_dyn_buf(&c->pb) < 0) {
2890 /* XXX: cannot do more */
2891 c->pb = NULL; /* safety */
2895 /* check version name */
2896 if (strcmp(protocol, "RTSP/1.0")) {
2897 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2901 /* parse each header line */
2902 /* skip to next line */
2903 while (*p != '\n' && *p != '\0')
2907 while (*p != '\0') {
2908 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2912 if (p2 > p && p2[-1] == '\r')
2914 /* skip empty line */
2918 if (len > sizeof(line) - 1)
2919 len = sizeof(line) - 1;
2920 memcpy(line, p, len);
2922 ff_rtsp_parse_line(NULL, header, line, NULL, NULL);
2926 /* handle sequence number */
2927 c->seq = header->seq;
2929 if (!strcmp(cmd, "DESCRIBE"))
2930 rtsp_cmd_describe(c, url);
2931 else if (!strcmp(cmd, "OPTIONS"))
2932 rtsp_cmd_options(c, url);
2933 else if (!strcmp(cmd, "SETUP"))
2934 rtsp_cmd_setup(c, url, header);
2935 else if (!strcmp(cmd, "PLAY"))
2936 rtsp_cmd_play(c, url, header);
2937 else if (!strcmp(cmd, "PAUSE"))
2938 rtsp_cmd_interrupt(c, url, header, 1);
2939 else if (!strcmp(cmd, "TEARDOWN"))
2940 rtsp_cmd_interrupt(c, url, header, 0);
2942 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2945 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2946 c->pb = NULL; /* safety */
2948 /* XXX: cannot do more */
2951 c->buffer_ptr = c->pb_buffer;
2952 c->buffer_end = c->pb_buffer + len;
2953 c->state = RTSPSTATE_SEND_REPLY;
2957 static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer,
2958 struct in_addr my_ip)
2960 AVFormatContext *avc;
2961 AVStream *avs = NULL;
2962 AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
2963 AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0);
2968 avc = avformat_alloc_context();
2969 if (!avc || !rtp_format)
2972 avc->oformat = rtp_format;
2973 av_dict_set(&avc->metadata, "title",
2974 entry ? entry->value : "No Title", 0);
2975 avc->nb_streams = stream->nb_streams;
2976 if (stream->is_multicast) {
2977 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2978 inet_ntoa(stream->multicast_ip),
2979 stream->multicast_port, stream->multicast_ttl);
2981 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
2983 avc->streams = av_malloc_array(avc->nb_streams, sizeof(*avc->streams));
2987 avs = av_malloc_array(avc->nb_streams, sizeof(*avs));
2991 for(i = 0; i < stream->nb_streams; i++) {
2992 avc->streams[i] = &avs[i];
2993 avc->streams[i]->codec = stream->streams[i]->codec;
2995 *pbuffer = av_mallocz(2048);
2998 av_sdp_create(&avc, 1, *pbuffer, 2048);
3001 av_freep(&avc->streams);
3002 av_dict_free(&avc->metadata);
3006 return *pbuffer ? strlen(*pbuffer) : AVERROR(ENOMEM);
3009 static void rtsp_cmd_options(HTTPContext *c, const char *url)
3011 /* rtsp_reply_header(c, RTSP_STATUS_OK); */
3012 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
3013 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
3014 avio_printf(c->pb, "Public: %s\r\n",
3015 "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
3016 avio_printf(c->pb, "\r\n");
3019 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
3021 FFServerStream *stream;
3027 struct sockaddr_in my_addr;
3029 /* find which URL is asked */
3030 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3035 for(stream = config.first_stream; stream; stream = stream->next) {
3036 if (!stream->is_feed &&
3037 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
3038 !strcmp(path, stream->filename)) {
3042 /* no stream found */
3043 rtsp_reply_error(c, RTSP_STATUS_NOT_FOUND);
3047 /* prepare the media description in SDP format */
3049 /* get the host IP */
3050 len = sizeof(my_addr);
3051 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3052 content_length = prepare_sdp_description(stream, &content,
3054 if (content_length < 0) {
3055 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3058 rtsp_reply_header(c, RTSP_STATUS_OK);
3059 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3060 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3061 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3062 avio_printf(c->pb, "\r\n");
3063 avio_write(c->pb, content, content_length);
3067 static HTTPContext *find_rtp_session(const char *session_id)
3071 if (session_id[0] == '\0')
3074 for(c = first_http_ctx; c; c = c->next) {
3075 if (!strcmp(c->session_id, session_id))
3081 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3083 RTSPTransportField *th;
3086 for(i=0;i<h->nb_transports;i++) {
3087 th = &h->transports[i];
3088 if (th->lower_transport == lower_transport)
3094 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3095 RTSPMessageHeader *h)
3097 FFServerStream *stream;
3098 int stream_index, rtp_port, rtcp_port;
3103 RTSPTransportField *th;
3104 struct sockaddr_in dest_addr;
3105 RTSPActionServerSetup setup;
3107 /* find which URL is asked */
3108 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3113 /* now check each stream */
3114 for(stream = config.first_stream; stream; stream = stream->next) {
3115 if (stream->is_feed || !stream->fmt ||
3116 strcmp(stream->fmt->name, "rtp")) {
3119 /* accept aggregate filenames only if single stream */
3120 if (!strcmp(path, stream->filename)) {
3121 if (stream->nb_streams != 1) {
3122 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3129 for(stream_index = 0; stream_index < stream->nb_streams;
3131 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3132 stream->filename, stream_index);
3133 if (!strcmp(path, buf))
3137 /* no stream found */
3138 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3142 /* generate session id if needed */
3143 if (h->session_id[0] == '\0') {
3144 unsigned random0 = av_lfg_get(&random_state);
3145 unsigned random1 = av_lfg_get(&random_state);
3146 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3150 /* find RTP session, and create it if none found */
3151 rtp_c = find_rtp_session(h->session_id);
3153 /* always prefer UDP */
3154 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3156 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3158 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3163 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3164 th->lower_transport);
3166 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3170 /* open input stream */
3171 if (open_input_stream(rtp_c, "") < 0) {
3172 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3177 /* test if stream is OK (test needed because several SETUP needs
3178 * to be done for a given file) */
3179 if (rtp_c->stream != stream) {
3180 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3184 /* test if stream is already set up */
3185 if (rtp_c->rtp_ctx[stream_index]) {
3186 rtsp_reply_error(c, RTSP_STATUS_STATE);
3190 /* check transport */
3191 th = find_transport(h, rtp_c->rtp_protocol);
3192 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3193 th->client_port_min <= 0)) {
3194 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3198 /* setup default options */
3199 setup.transport_option[0] = '\0';
3200 dest_addr = rtp_c->from_addr;
3201 dest_addr.sin_port = htons(th->client_port_min);
3204 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3205 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3209 /* now everything is OK, so we can send the connection parameters */
3210 rtsp_reply_header(c, RTSP_STATUS_OK);
3212 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3214 switch(rtp_c->rtp_protocol) {
3215 case RTSP_LOWER_TRANSPORT_UDP:
3216 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3217 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3218 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3219 "client_port=%d-%d;server_port=%d-%d",
3220 th->client_port_min, th->client_port_max,
3221 rtp_port, rtcp_port);
3223 case RTSP_LOWER_TRANSPORT_TCP:
3224 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3225 stream_index * 2, stream_index * 2 + 1);
3230 if (setup.transport_option[0] != '\0')
3231 avio_printf(c->pb, ";%s", setup.transport_option);
3232 avio_printf(c->pb, "\r\n");
3235 avio_printf(c->pb, "\r\n");
3240 * find an RTP connection by using the session ID. Check consistency
3243 static HTTPContext *find_rtp_session_with_url(const char *url,
3244 const char *session_id)
3252 rtp_c = find_rtp_session(session_id);
3256 /* find which URL is asked */
3257 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3261 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3262 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3263 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3264 rtp_c->stream->filename, s);
3265 if(!strncmp(path, buf, sizeof(buf)))
3266 /* XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE
3267 * if nb_streams>1? */
3271 if (len > 0 && path[len - 1] == '/' &&
3272 !strncmp(path, rtp_c->stream->filename, len - 1))
3277 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3281 rtp_c = find_rtp_session_with_url(url, h->session_id);
3283 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3287 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3288 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3289 rtp_c->state != HTTPSTATE_READY) {
3290 rtsp_reply_error(c, RTSP_STATUS_STATE);
3294 rtp_c->state = HTTPSTATE_SEND_DATA;
3296 /* now everything is OK, so we can send the connection parameters */
3297 rtsp_reply_header(c, RTSP_STATUS_OK);
3299 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3300 avio_printf(c->pb, "\r\n");
3303 static void rtsp_cmd_interrupt(HTTPContext *c, const char *url,
3304 RTSPMessageHeader *h, int pause_only)
3308 rtp_c = find_rtp_session_with_url(url, h->session_id);
3310 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3315 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3316 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3317 rtsp_reply_error(c, RTSP_STATUS_STATE);
3320 rtp_c->state = HTTPSTATE_READY;
3321 rtp_c->first_pts = AV_NOPTS_VALUE;
3324 /* now everything is OK, so we can send the connection parameters */
3325 rtsp_reply_header(c, RTSP_STATUS_OK);
3327 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3328 avio_printf(c->pb, "\r\n");
3331 close_connection(rtp_c);
3334 /********************************************************************/
3337 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3338 FFServerStream *stream,
3339 const char *session_id,
3340 enum RTSPLowerTransport rtp_protocol)
3342 HTTPContext *c = NULL;
3343 const char *proto_str;
3345 /* XXX: should output a warning page when coming
3346 * close to the connection limit */
3347 if (nb_connections >= config.nb_max_connections)
3350 /* add a new connection */
3351 c = av_mallocz(sizeof(HTTPContext));
3356 c->poll_entry = NULL;
3357 c->from_addr = *from_addr;
3358 c->buffer_size = IOBUFFER_INIT_SIZE;
3359 c->buffer = av_malloc(c->buffer_size);
3364 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3365 c->state = HTTPSTATE_READY;
3366 c->is_packetized = 1;
3367 c->rtp_protocol = rtp_protocol;
3369 /* protocol is shown in statistics */
3370 switch(c->rtp_protocol) {
3371 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3372 proto_str = "MCAST";
3374 case RTSP_LOWER_TRANSPORT_UDP:
3377 case RTSP_LOWER_TRANSPORT_TCP:
3384 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3385 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3387 current_bandwidth += stream->bandwidth;
3389 c->next = first_http_ctx;
3395 av_freep(&c->buffer);
3402 * add a new RTP stream in an RTP connection (used in RTSP SETUP
3403 * command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3406 static int rtp_new_av_stream(HTTPContext *c,
3407 int stream_index, struct sockaddr_in *dest_addr,
3408 HTTPContext *rtsp_c)
3410 AVFormatContext *ctx;
3413 URLContext *h = NULL;
3415 int max_packet_size;
3418 /* now we can open the relevant output stream */
3419 ctx = avformat_alloc_context();
3422 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3424 st = avformat_new_stream(ctx, NULL);
3428 av_freep(&st->codec);
3429 av_freep(&st->info);
3430 st_internal = st->internal;
3432 if (!c->stream->feed ||
3433 c->stream->feed == c->stream)
3434 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
3437 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3439 st->priv_data = NULL;
3440 st->internal = st_internal;
3442 /* build destination RTP address */
3443 ipaddr = inet_ntoa(dest_addr->sin_addr);
3445 switch(c->rtp_protocol) {
3446 case RTSP_LOWER_TRANSPORT_UDP:
3447 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3450 /* XXX: also pass as parameter to function ? */
3451 if (c->stream->is_multicast) {
3453 ttl = c->stream->multicast_ttl;
3456 snprintf(ctx->filename, sizeof(ctx->filename),
3457 "rtp://%s:%d?multicast=1&ttl=%d",
3458 ipaddr, ntohs(dest_addr->sin_port), ttl);
3460 snprintf(ctx->filename, sizeof(ctx->filename),
3461 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3464 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3466 c->rtp_handles[stream_index] = h;
3467 max_packet_size = h->max_packet_size;
3469 case RTSP_LOWER_TRANSPORT_TCP:
3472 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3478 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3479 ipaddr, ntohs(dest_addr->sin_port),
3480 c->stream->filename, stream_index, c->protocol);
3482 /* normally, no packets should be output here, but the packet size may
3484 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0)
3485 /* XXX: close stream */
3488 if (avformat_write_header(ctx, NULL) < 0) {
3496 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3500 c->rtp_ctx[stream_index] = ctx;
3504 /********************************************************************/
3505 /* ffserver initialization */
3507 /* FIXME: This code should use avformat_new_stream() */
3508 static AVStream *add_av_stream1(FFServerStream *stream,
3509 AVCodecContext *codec, int copy)
3513 if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
3516 fst = av_mallocz(sizeof(AVStream));
3520 fst->codec = avcodec_alloc_context3(codec->codec);
3525 avcodec_copy_context(fst->codec, codec);
3527 /* live streams must use the actual feed's codec since it may be
3528 * updated later to carry extradata needed by them.
3532 fst->priv_data = av_mallocz(sizeof(FeedData));
3533 fst->internal = av_mallocz(sizeof(*fst->internal));
3534 fst->index = stream->nb_streams;
3535 avpriv_set_pts_info(fst, 33, 1, 90000);
3536 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3537 stream->streams[stream->nb_streams++] = fst;
3541 /* return the stream number in the feed */
3542 static int add_av_stream(FFServerStream *feed, AVStream *st)
3545 AVCodecContext *av, *av1;
3549 for(i=0;i<feed->nb_streams;i++) {
3550 av1 = feed->streams[i]->codec;
3551 if (av1->codec_id == av->codec_id &&
3552 av1->codec_type == av->codec_type &&
3553 av1->bit_rate == av->bit_rate) {
3555 switch(av->codec_type) {
3556 case AVMEDIA_TYPE_AUDIO:
3557 if (av1->channels == av->channels &&
3558 av1->sample_rate == av->sample_rate)
3561 case AVMEDIA_TYPE_VIDEO:
3562 if (av1->width == av->width &&
3563 av1->height == av->height &&
3564 av1->time_base.den == av->time_base.den &&
3565 av1->time_base.num == av->time_base.num &&
3566 av1->gop_size == av->gop_size)
3575 fst = add_av_stream1(feed, av, 0);
3578 if (av_stream_get_recommended_encoder_configuration(st))
3579 av_stream_set_recommended_encoder_configuration(fst,
3580 av_strdup(av_stream_get_recommended_encoder_configuration(st)));
3581 return feed->nb_streams - 1;
3584 static void remove_stream(FFServerStream *stream)
3586 FFServerStream **ps;
3587 ps = &config.first_stream;
3596 /* specific MPEG4 handling : we extract the raw parameters */
3597 static void extract_mpeg4_header(AVFormatContext *infile)
3599 int mpeg4_count, i, size;
3604 infile->flags |= AVFMT_FLAG_NOFILLIN | AVFMT_FLAG_NOPARSE;
3607 for(i=0;i<infile->nb_streams;i++) {
3608 st = infile->streams[i];
3609 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3610 st->codec->extradata_size == 0) {
3617 printf("MPEG4 without extra data: trying to find header in %s\n",
3619 while (mpeg4_count > 0) {
3620 if (av_read_frame(infile, &pkt) < 0)
3622 st = infile->streams[pkt.stream_index];
3623 if (st->codec->codec_id == AV_CODEC_ID_MPEG4 &&
3624 st->codec->extradata_size == 0) {
3625 av_freep(&st->codec->extradata);
3626 /* fill extradata with the header */
3627 /* XXX: we make hard suppositions here ! */
3629 while (p < pkt.data + pkt.size - 4) {
3630 /* stop when vop header is found */
3631 if (p[0] == 0x00 && p[1] == 0x00 &&
3632 p[2] == 0x01 && p[3] == 0xb6) {
3633 size = p - pkt.data;
3634 st->codec->extradata = av_mallocz(size + AV_INPUT_BUFFER_PADDING_SIZE);
3635 st->codec->extradata_size = size;
3636 memcpy(st->codec->extradata, pkt.data, size);
3643 av_packet_unref(&pkt);
3647 /* compute the needed AVStream for each file */
3648 static void build_file_streams(void)
3650 FFServerStream *stream;
3651 AVFormatContext *infile;
3654 /* gather all streams */
3655 for(stream = config.first_stream; stream; stream = stream->next) {
3658 if (stream->stream_type != STREAM_TYPE_LIVE || stream->feed)
3661 /* the stream comes from a file */
3662 /* try to open the file */
3666 /* specific case: if transport stream output to RTP,
3667 * we use a raw transport stream reader */
3668 if (stream->fmt && !strcmp(stream->fmt->name, "rtp"))
3669 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3671 if (!stream->feed_filename[0]) {
3672 http_log("Unspecified feed file for stream '%s'\n",
3677 http_log("Opening feed file '%s' for stream '%s'\n",
3678 stream->feed_filename, stream->filename);
3680 ret = avformat_open_input(&infile, stream->feed_filename,
3681 stream->ifmt, &stream->in_opts);
3683 http_log("Could not open '%s': %s\n", stream->feed_filename,
3685 /* remove stream (no need to spend more time on it) */
3687 remove_stream(stream);
3689 /* find all the AVStreams inside and reference them in
3691 if (avformat_find_stream_info(infile, NULL) < 0) {
3692 http_log("Could not find codec parameters from '%s'\n",
3693 stream->feed_filename);
3694 avformat_close_input(&infile);
3697 extract_mpeg4_header(infile);
3699 for(i=0;i<infile->nb_streams;i++)
3700 add_av_stream1(stream, infile->streams[i]->codec, 1);
3702 avformat_close_input(&infile);
3708 int check_codec_match(AVCodecContext *ccf, AVCodecContext *ccs, int stream)
3712 #define CHECK_CODEC(x) (ccf->x != ccs->x)
3713 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3714 http_log("Codecs do not match for stream %d\n", stream);
3716 } else if (CHECK_CODEC(bit_rate) || CHECK_CODEC(flags)) {
3717 http_log("Codec bitrates do not match for stream %d\n", stream);
3719 } else if (ccf->codec_type == AVMEDIA_TYPE_VIDEO) {
3720 if (CHECK_CODEC(time_base.den) ||
3721 CHECK_CODEC(time_base.num) ||
3722 CHECK_CODEC(width) ||
3723 CHECK_CODEC(height)) {
3724 http_log("Codec width, height or framerate do not match for stream %d\n", stream);
3727 } else if (ccf->codec_type == AVMEDIA_TYPE_AUDIO) {
3728 if (CHECK_CODEC(sample_rate) ||
3729 CHECK_CODEC(channels) ||
3730 CHECK_CODEC(frame_size)) {
3731 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", stream);
3735 http_log("Unknown codec type for stream %d\n", stream);
3742 /* compute the needed AVStream for each feed */
3743 static int build_feed_streams(void)
3745 FFServerStream *stream, *feed;
3748 /* gather all streams */
3749 for(stream = config.first_stream; stream; stream = stream->next) {
3750 feed = stream->feed;
3754 if (stream->is_feed) {
3755 for(i=0;i<stream->nb_streams;i++)
3756 stream->feed_streams[i] = i;
3759 /* we handle a stream coming from a feed */
3760 for(i=0;i<stream->nb_streams;i++)
3761 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3764 /* create feed files if needed */
3765 for(feed = config.first_feed; feed; feed = feed->next_feed) {
3767 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3768 AVFormatContext *s = NULL;
3771 /* See if it matches */
3773 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) < 0) {
3774 http_log("Deleting feed file '%s' as it appears "
3776 feed->feed_filename);
3780 /* set buffer size */
3781 if (ffio_set_buf_size(s->pb, FFM_PACKET_SIZE) < 0) {
3782 http_log("Failed to set buffer size\n");
3783 avformat_close_input(&s);
3787 /* Now see if it matches */
3788 if (s->nb_streams != feed->nb_streams) {
3789 http_log("Deleting feed file '%s' as stream counts "
3790 "differ (%d != %d)\n",
3791 feed->feed_filename, s->nb_streams, feed->nb_streams);
3796 for(i=0;i<s->nb_streams;i++) {
3799 sf = feed->streams[i];
3802 if (sf->index != ss->index || sf->id != ss->id) {
3803 http_log("Index & Id do not match for stream %d (%s)\n",
3804 i, feed->feed_filename);
3809 matches = check_codec_match (sf->codec, ss->codec, i);
3816 avformat_close_input(&s);
3819 if (feed->readonly) {
3820 http_log("Unable to delete read-only feed file '%s'\n",
3821 feed->feed_filename);
3824 unlink(feed->feed_filename);
3828 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3829 AVFormatContext *s = avformat_alloc_context();
3832 http_log("Failed to allocate context\n");
3836 if (feed->readonly) {
3837 http_log("Unable to create feed file '%s' as it is "
3838 "marked readonly\n",
3839 feed->feed_filename);
3840 avformat_free_context(s);
3844 /* only write the header of the ffm file */
3845 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3846 http_log("Could not open output feed file '%s'\n",
3847 feed->feed_filename);
3848 avformat_free_context(s);
3851 s->oformat = feed->fmt;
3852 s->nb_streams = feed->nb_streams;
3853 s->streams = feed->streams;
3854 if (avformat_write_header(s, NULL) < 0) {
3855 http_log("Container doesn't support the required parameters\n");
3856 avio_closep(&s->pb);
3857 avformat_free_context(s);
3860 /* XXX: need better API */
3861 av_freep(&s->priv_data);
3862 avio_closep(&s->pb);
3865 avformat_free_context(s);
3868 /* get feed size and write index */
3869 fd = open(feed->feed_filename, O_RDONLY);
3871 http_log("Could not open output feed file '%s'\n",
3872 feed->feed_filename);
3876 feed->feed_write_index = FFMAX(ffm_read_write_index(fd),
3878 feed->feed_size = lseek(fd, 0, SEEK_END);
3879 /* ensure that we do not wrap before the end of file */
3880 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3881 feed->feed_max_size = feed->feed_size;
3891 /* compute the bandwidth used by each stream */
3892 static void compute_bandwidth(void)
3896 FFServerStream *stream;
3898 for(stream = config.first_stream; stream; stream = stream->next) {
3900 for(i=0;i<stream->nb_streams;i++) {
3901 AVStream *st = stream->streams[i];
3902 switch(st->codec->codec_type) {
3903 case AVMEDIA_TYPE_AUDIO:
3904 case AVMEDIA_TYPE_VIDEO:
3905 bandwidth += st->codec->bit_rate;
3911 stream->bandwidth = (bandwidth + 999) / 1000;
3915 static void handle_child_exit(int sig)
3921 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
3922 FFServerStream *feed;
3924 for (feed = config.first_feed; feed; feed = feed->next) {
3925 if (feed->pid != pid)
3928 uptime = time(0) - feed->pid_start;
3931 "%s: Pid %"PRId64" exited with status %d after %"PRId64" "
3933 feed->filename, (int64_t) pid, status, uptime);
3936 /* Turn off any more restarts */
3937 ffserver_free_child_args(&feed->child_argv);
3941 need_to_start_children = 1;
3944 static void opt_debug(void)
3947 snprintf(config.logfilename, sizeof(config.logfilename), "-");
3950 void show_help_default(const char *opt, const char *arg)
3952 printf("usage: ffserver [options]\n"
3953 "Hyper fast multi format Audio/Video streaming server\n");
3955 show_help_options(options, "Main options:", 0, 0, 0);
3958 static const OptionDef options[] = {
3959 #include "cmdutils_common_opts.h"
3960 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
3961 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
3962 { "f", HAS_ARG | OPT_STRING, {(void*)&config.filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
3966 int main(int argc, char **argv)
3968 struct sigaction sigact = { { 0 } };
3970 int ret = EXIT_FAILURE;
3973 config.filename = av_strdup("/etc/ffserver.conf");
3975 parse_loglevel(argc, argv, options);
3977 avformat_network_init();
3979 show_banner(argc, argv, options);
3981 my_program_name = argv[0];
3983 parse_options(NULL, argc, argv, options, NULL);
3985 unsetenv("http_proxy"); /* Kill the http_proxy */
3987 av_lfg_init(&random_state, av_get_random_seed());
3989 sigact.sa_handler = handle_child_exit;
3990 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
3991 sigaction(SIGCHLD, &sigact, 0);
3993 if ((cfg_parsed = ffserver_parse_ffconfig(config.filename, &config)) < 0) {
3994 fprintf(stderr, "Error reading configuration file '%s': %s\n",
3995 config.filename, av_err2str(cfg_parsed));
3999 /* open log file if needed */
4000 if (config.logfilename[0] != '\0') {
4001 if (!strcmp(config.logfilename, "-"))
4004 logfile = fopen(config.logfilename, "a");
4005 av_log_set_callback(http_av_log);
4008 build_file_streams();
4010 if (build_feed_streams() < 0) {
4011 http_log("Could not setup feed streams\n");
4015 compute_bandwidth();
4018 signal(SIGPIPE, SIG_IGN);
4020 if (http_server() < 0) {
4021 http_log("Could not start server\n");
4028 av_freep (&config.filename);
4029 avformat_network_deinit();