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/rtpproto.h"
36 #include "libavformat/rtsp.h"
37 #include "libavformat/avio_internal.h"
38 #include "libavformat/internal.h"
40 #include "libavutil/avassert.h"
41 #include "libavutil/avstring.h"
42 #include "libavutil/lfg.h"
43 #include "libavutil/dict.h"
44 #include "libavutil/intreadwrite.h"
45 #include "libavutil/mathematics.h"
46 #include "libavutil/random_seed.h"
47 #include "libavutil/rational.h"
48 #include "libavutil/parseutils.h"
49 #include "libavutil/opt.h"
50 #include "libavutil/time.h"
57 #include <sys/ioctl.h>
67 #include "ffserver_config.h"
69 #define PATH_LENGTH 1024
71 const char program_name[] = "ffserver";
72 const int program_birth_year = 2000;
74 static const OptionDef options[];
77 HTTPSTATE_WAIT_REQUEST,
78 HTTPSTATE_SEND_HEADER,
79 HTTPSTATE_SEND_DATA_HEADER,
80 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
81 HTTPSTATE_SEND_DATA_TRAILER,
82 HTTPSTATE_RECEIVE_DATA,
83 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
86 RTSPSTATE_WAIT_REQUEST,
88 RTSPSTATE_SEND_PACKET,
91 static const char * const http_state[] = {
107 #define IOBUFFER_INIT_SIZE 8192
109 /* timeouts are in ms */
110 #define HTTP_REQUEST_TIMEOUT (15 * 1000)
111 #define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
113 #define SYNC_TIMEOUT (10 * 1000)
115 typedef struct RTSPActionServerSetup {
117 char transport_option[512];
118 } RTSPActionServerSetup;
121 int64_t count1, count2;
122 int64_t time1, time2;
125 /* context associated with one connection */
126 typedef struct HTTPContext {
127 enum HTTPState state;
128 int fd; /* socket file descriptor */
129 struct sockaddr_in from_addr; /* origin */
130 struct pollfd *poll_entry; /* used when polling */
132 uint8_t *buffer_ptr, *buffer_end;
135 int chunked_encoding;
136 int chunk_size; /* 0 if it needs to be read */
137 struct HTTPContext *next;
138 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
142 /* input format handling */
143 AVFormatContext *fmt_in;
144 int64_t start_time; /* In milliseconds - this wraps fairly often */
145 int64_t first_pts; /* initial pts value */
146 int64_t cur_pts; /* current pts value from the stream in us */
147 int64_t cur_frame_duration; /* duration of the current frame in us */
148 int cur_frame_bytes; /* output frame size, needed to compute
149 the time at which we send each
151 int pts_stream_index; /* stream we choose as clock reference */
152 int64_t cur_clock; /* current clock reference value in us */
153 /* output format handling */
154 struct FFServerStream *stream;
155 /* -1 is invalid stream */
156 int feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */
157 int switch_feed_streams[FFSERVER_MAX_STREAMS]; /* index of streams in the feed */
159 AVFormatContext *pfmt_ctx; /* instance of FFServerStream for one user */
160 int last_packet_sent; /* true if last data packet was sent */
162 DataRateData datarate;
167 char clean_url[128*7];
170 int is_packetized; /* if true, the stream is packetized */
171 int packet_stream_index; /* current stream for output in state machine */
173 /* RTSP state specific */
174 uint8_t *pb_buffer; /* XXX: use that in all the code */
176 int seq; /* RTSP sequence number */
178 /* RTP state specific */
179 enum RTSPLowerTransport rtp_protocol;
180 char session_id[32]; /* session id */
181 AVFormatContext *rtp_ctx[FFSERVER_MAX_STREAMS];
183 /* RTP/UDP specific */
184 URLContext *rtp_handles[FFSERVER_MAX_STREAMS];
186 /* RTP/TCP specific */
187 struct HTTPContext *rtsp_c;
188 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
191 static HTTPContext *first_http_ctx;
193 static FFServerConfig config = {
194 .nb_max_http_connections = 2000,
195 .nb_max_connections = 5,
196 .max_bandwidth = 1000,
200 static void new_connection(int server_fd, int is_rtsp);
201 static void close_connection(HTTPContext *c);
204 static int handle_connection(HTTPContext *c);
205 static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream);
206 static void compute_status(HTTPContext *c);
207 static int open_input_stream(HTTPContext *c, const char *info);
208 static int http_parse_request(HTTPContext *c);
209 static int http_send_data(HTTPContext *c);
210 static int http_start_receive_data(HTTPContext *c);
211 static int http_receive_data(HTTPContext *c);
214 static int rtsp_parse_request(HTTPContext *c);
215 static void rtsp_cmd_describe(HTTPContext *c, const char *url);
216 static void rtsp_cmd_options(HTTPContext *c, const char *url);
217 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
218 RTSPMessageHeader *h);
219 static void rtsp_cmd_play(HTTPContext *c, const char *url,
220 RTSPMessageHeader *h);
221 static void rtsp_cmd_interrupt(HTTPContext *c, const char *url,
222 RTSPMessageHeader *h, int pause_only);
225 static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer,
226 struct in_addr my_ip);
229 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
230 FFServerStream *stream,
231 const char *session_id,
232 enum RTSPLowerTransport rtp_protocol);
233 static int rtp_new_av_stream(HTTPContext *c,
234 int stream_index, struct sockaddr_in *dest_addr,
235 HTTPContext *rtsp_c);
237 static size_t htmlencode (const char *src, char **dest);
238 static inline void cp_html_entity (char *buffer, const char *entity);
239 static inline int check_codec_match(LayeredAVStream *ccf, AVStream *ccs, int stream);
241 static const char *my_program_name;
243 static int no_launch;
244 static int need_to_start_children;
246 /* maximum number of simultaneous HTTP connections */
247 static unsigned int nb_connections;
249 static uint64_t current_bandwidth;
251 /* Making this global saves on passing it around everywhere */
252 static int64_t cur_time;
254 static AVLFG random_state;
256 static FILE *logfile = NULL;
258 static void unlayer_stream(AVStream *st, LayeredAVStream *lst)
260 avcodec_free_context(&st->codec);
261 avcodec_parameters_free(&st->codecpar);
262 #define COPY(a) st->a = lst->a;
269 COPY(sample_aspect_ratio)
270 COPY(recommended_encoder_configuration)
273 static inline void cp_html_entity (char *buffer, const char *entity) {
274 if (!buffer || !entity)
277 *buffer++ = *entity++;
281 * Substitutes known conflicting chars on a text string with
282 * their corresponding HTML entities.
284 * Returns the number of bytes in the 'encoded' representation
285 * not including the terminating NUL.
287 static size_t htmlencode (const char *src, char **dest) {
288 const char *amp = "&";
289 const char *lt = "<";
290 const char *gt = ">";
293 size_t final_size = 0;
300 /* Compute needed dest size */
301 while (*src != '\0') {
317 *dest = av_mallocz(final_size + 1);
323 while (*src != '\0') {
326 cp_html_entity (tmp, amp);
330 cp_html_entity (tmp, lt);
334 cp_html_entity (tmp, gt);
348 static int64_t ffm_read_write_index(int fd)
352 if (lseek(fd, 8, SEEK_SET) < 0)
354 if (read(fd, buf, 8) != 8)
359 static int ffm_write_write_index(int fd, int64_t pos)
365 buf[i] = (pos >> (56 - i * 8)) & 0xff;
366 if (lseek(fd, 8, SEEK_SET) < 0)
368 if (write(fd, buf, 8) != 8)
377 static void ffm_set_write_index(AVFormatContext *s, int64_t pos,
380 av_opt_set_int(s, "server_attached", 1, AV_OPT_SEARCH_CHILDREN);
381 av_opt_set_int(s, "ffm_write_index", pos, AV_OPT_SEARCH_CHILDREN);
382 av_opt_set_int(s, "ffm_file_size", file_size, AV_OPT_SEARCH_CHILDREN);
385 static char *ctime1(char *buf2, size_t buf_size)
396 av_strlcpy(buf2, p, buf_size);
397 p = buf2 + strlen(buf2) - 1;
403 static void http_vlog(const char *fmt, va_list vargs)
405 static int print_prefix = 1;
412 ctime1(buf, sizeof(buf));
413 fprintf(logfile, "%s ", buf);
415 print_prefix = strstr(fmt, "\n") != NULL;
416 vfprintf(logfile, fmt, vargs);
421 __attribute__ ((format (printf, 1, 2)))
423 static void http_log(const char *fmt, ...)
426 va_start(vargs, fmt);
427 http_vlog(fmt, vargs);
431 static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
433 static int print_prefix = 1;
434 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
435 if (level > av_log_get_level())
437 if (print_prefix && avc)
438 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
439 print_prefix = strstr(fmt, "\n") != NULL;
440 http_vlog(fmt, vargs);
443 static void log_connection(HTTPContext *c)
448 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
449 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
450 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
453 static void update_datarate(DataRateData *drd, int64_t count)
455 if (!drd->time1 && !drd->count1) {
456 drd->time1 = drd->time2 = cur_time;
457 drd->count1 = drd->count2 = count;
458 } else if (cur_time - drd->time2 > 5000) {
459 drd->time1 = drd->time2;
460 drd->count1 = drd->count2;
461 drd->time2 = cur_time;
466 /* In bytes per second */
467 static int compute_datarate(DataRateData *drd, int64_t count)
469 if (cur_time == drd->time1)
472 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
476 static void start_children(FFServerStream *feed)
486 cmd_length = strlen(my_program_name);
489 * FIXME: WIP Safeguard. Remove after clearing all harcoded
490 * '1024' path lengths
492 if (cmd_length > PATH_LENGTH - 1) {
493 http_log("Could not start children. Command line: '%s' exceeds "
494 "path length limit (%d)\n", my_program_name, PATH_LENGTH);
498 slash = strrchr(my_program_name, '/');
500 pathname = av_mallocz(sizeof("ffmpeg"));
502 pathname = av_mallocz(slash - my_program_name + sizeof("ffmpeg"));
503 if (pathname != NULL) {
504 memcpy(pathname, my_program_name, slash - my_program_name);
508 http_log("Could not allocate memory for children cmd line\n");
511 /* use "ffmpeg" in the path of current program. Ignore user provided path */
513 strcat(pathname, "ffmpeg");
515 for (; feed; feed = feed->next) {
517 if (!feed->child_argv || feed->pid)
520 feed->pid_start = time(0);
524 http_log("Unable to create children: %s\n", strerror(errno));
534 http_log("Launch command line: ");
535 http_log("%s ", pathname);
537 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
538 http_log("%s ", feed->child_argv[i]);
541 for (i = 3; i < 256; i++)
545 if (!freopen("/dev/null", "r", stdin))
546 http_log("failed to redirect STDIN to /dev/null\n;");
547 if (!freopen("/dev/null", "w", stdout))
548 http_log("failed to redirect STDOUT to /dev/null\n;");
549 if (!freopen("/dev/null", "w", stderr))
550 http_log("failed to redirect STDERR to /dev/null\n;");
553 signal(SIGPIPE, SIG_DFL);
554 execvp(pathname, feed->child_argv);
561 /* open a listening socket */
562 static int socket_open_listen(struct sockaddr_in *my_addr)
566 server_fd = socket(AF_INET,SOCK_STREAM,0);
573 if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)))
574 av_log(NULL, AV_LOG_WARNING, "setsockopt SO_REUSEADDR failed\n");
576 my_addr->sin_family = AF_INET;
577 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
579 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)",
580 ntohs(my_addr->sin_port));
585 if (listen (server_fd, 5) < 0) {
590 if (ff_socket_nonblock(server_fd, 1) < 0)
591 av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
596 closesocket(server_fd);
600 /* start all multicast streams */
601 static void start_multicast(void)
603 FFServerStream *stream;
606 struct sockaddr_in dest_addr = {0};
607 int default_port, stream_index;
608 unsigned int random0, random1;
611 for(stream = config.first_stream; stream; stream = stream->next) {
613 if (!stream->is_multicast)
616 random0 = av_lfg_get(&random_state);
617 random1 = av_lfg_get(&random_state);
619 /* open the RTP connection */
620 snprintf(session_id, sizeof(session_id), "%08x%08x", random0, random1);
622 /* choose a port if none given */
623 if (stream->multicast_port == 0) {
624 stream->multicast_port = default_port;
628 dest_addr.sin_family = AF_INET;
629 dest_addr.sin_addr = stream->multicast_ip;
630 dest_addr.sin_port = htons(stream->multicast_port);
632 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
633 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
637 if (open_input_stream(rtp_c, "") < 0) {
638 http_log("Could not open input stream for stream '%s'\n",
643 /* open each RTP stream */
644 for(stream_index = 0; stream_index < stream->nb_streams;
646 dest_addr.sin_port = htons(stream->multicast_port +
648 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) >= 0)
651 http_log("Could not open output stream '%s/streamid=%d'\n",
652 stream->filename, stream_index);
656 rtp_c->state = HTTPSTATE_SEND_DATA;
660 /* main loop of the HTTP server */
661 static int http_server(void)
663 int server_fd = 0, rtsp_server_fd = 0;
665 struct pollfd *poll_table, *poll_entry;
666 HTTPContext *c, *c_next;
668 poll_table = av_mallocz_array(config.nb_max_http_connections + 2,
669 sizeof(*poll_table));
671 http_log("Impossible to allocate a poll table handling %d "
672 "connections.\n", config.nb_max_http_connections);
676 if (config.http_addr.sin_port) {
677 server_fd = socket_open_listen(&config.http_addr);
682 if (config.rtsp_addr.sin_port) {
683 rtsp_server_fd = socket_open_listen(&config.rtsp_addr);
684 if (rtsp_server_fd < 0) {
685 closesocket(server_fd);
690 if (!rtsp_server_fd && !server_fd) {
691 http_log("HTTP and RTSP disabled.\n");
695 http_log("FFserver started.\n");
697 start_children(config.first_feed);
702 poll_entry = poll_table;
704 poll_entry->fd = server_fd;
705 poll_entry->events = POLLIN;
708 if (rtsp_server_fd) {
709 poll_entry->fd = rtsp_server_fd;
710 poll_entry->events = POLLIN;
714 /* wait for events on each HTTP handle */
721 case HTTPSTATE_SEND_HEADER:
722 case RTSPSTATE_SEND_REPLY:
723 case RTSPSTATE_SEND_PACKET:
724 c->poll_entry = poll_entry;
726 poll_entry->events = POLLOUT;
729 case HTTPSTATE_SEND_DATA_HEADER:
730 case HTTPSTATE_SEND_DATA:
731 case HTTPSTATE_SEND_DATA_TRAILER:
732 if (!c->is_packetized) {
733 /* for TCP, we output as much as we can
734 * (may need to put a limit) */
735 c->poll_entry = poll_entry;
737 poll_entry->events = POLLOUT;
740 /* when ffserver is doing the timing, we work by
741 * looking at which packet needs to be sent every
742 * 10 ms (one tick wait XXX: 10 ms assumed) */
747 case HTTPSTATE_WAIT_REQUEST:
748 case HTTPSTATE_RECEIVE_DATA:
749 case HTTPSTATE_WAIT_FEED:
750 case RTSPSTATE_WAIT_REQUEST:
751 /* need to catch errors */
752 c->poll_entry = poll_entry;
754 poll_entry->events = POLLIN;/* Maybe this will work */
758 c->poll_entry = NULL;
764 /* wait for an event on one connection. We poll at least every
765 * second to handle timeouts */
767 ret = poll(poll_table, poll_entry - poll_table, delay);
768 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
769 ff_neterrno() != AVERROR(EINTR)) {
774 cur_time = av_gettime() / 1000;
776 if (need_to_start_children) {
777 need_to_start_children = 0;
778 start_children(config.first_feed);
781 /* now handle the events */
782 for(c = first_http_ctx; c; c = c_next) {
784 if (handle_connection(c) < 0) {
786 /* close and free the connection */
791 poll_entry = poll_table;
793 /* new HTTP connection request ? */
794 if (poll_entry->revents & POLLIN)
795 new_connection(server_fd, 0);
798 if (rtsp_server_fd) {
799 /* new RTSP connection request ? */
800 if (poll_entry->revents & POLLIN)
801 new_connection(rtsp_server_fd, 1);
810 /* start waiting for a new HTTP/RTSP request */
811 static void start_wait_request(HTTPContext *c, int is_rtsp)
813 c->buffer_ptr = c->buffer;
814 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
816 c->state = is_rtsp ? RTSPSTATE_WAIT_REQUEST : HTTPSTATE_WAIT_REQUEST;
817 c->timeout = cur_time +
818 (is_rtsp ? RTSP_REQUEST_TIMEOUT : HTTP_REQUEST_TIMEOUT);
821 static void http_send_too_busy_reply(int fd)
824 int len = snprintf(buffer, sizeof(buffer),
825 "HTTP/1.0 503 Server too busy\r\n"
826 "Content-type: text/html\r\n"
829 "<html><head><title>Too busy</title></head><body>\r\n"
830 "<p>The server is too busy to serve your request at "
832 "<p>The number of current connections is %u, and this "
833 "exceeds the limit of %u.</p>\r\n"
834 "</body></html>\r\n",
835 nb_connections, config.nb_max_connections);
836 av_assert0(len < sizeof(buffer));
837 if (send(fd, buffer, len, 0) < len)
838 av_log(NULL, AV_LOG_WARNING,
839 "Could not send too-busy reply, send() failed\n");
843 static void new_connection(int server_fd, int is_rtsp)
845 struct sockaddr_in from_addr;
848 HTTPContext *c = NULL;
850 len = sizeof(from_addr);
851 fd = accept(server_fd, (struct sockaddr *)&from_addr,
854 http_log("error during accept %s\n", strerror(errno));
857 if (ff_socket_nonblock(fd, 1) < 0)
858 av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
860 if (nb_connections >= config.nb_max_connections) {
861 http_send_too_busy_reply(fd);
865 /* add a new connection */
866 c = av_mallocz(sizeof(HTTPContext));
871 c->poll_entry = NULL;
872 c->from_addr = from_addr;
873 c->buffer_size = IOBUFFER_INIT_SIZE;
874 c->buffer = av_malloc(c->buffer_size);
878 c->next = first_http_ctx;
882 start_wait_request(c, is_rtsp);
888 av_freep(&c->buffer);
894 static void close_connection(HTTPContext *c)
896 HTTPContext **cp, *c1;
898 AVFormatContext *ctx;
901 /* remove connection from list */
902 cp = &first_http_ctx;
911 /* remove references, if any (XXX: do it faster) */
912 for(c1 = first_http_ctx; c1; c1 = c1->next) {
917 /* remove connection associated resources */
921 /* close each frame parser */
922 for(i=0;i<c->fmt_in->nb_streams;i++) {
923 st = c->fmt_in->streams[i];
924 if (st->codec->codec)
925 avcodec_close(st->codec);
927 avformat_close_input(&c->fmt_in);
930 /* free RTP output streams if any */
933 nb_streams = c->stream->nb_streams;
935 for(i=0;i<nb_streams;i++) {
938 av_write_trailer(ctx);
939 av_dict_free(&ctx->metadata);
940 av_freep(&ctx->streams[0]);
943 ffurl_close(c->rtp_handles[i]);
949 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
951 if (ctx->oformat && avio_open_dyn_buf(&ctx->pb) >= 0) {
952 av_write_trailer(ctx);
953 av_freep(&c->pb_buffer);
954 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
957 for(i=0; i<ctx->nb_streams; i++)
958 av_freep(&ctx->streams[i]);
959 av_freep(&ctx->streams);
960 av_freep(&ctx->priv_data);
963 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
964 current_bandwidth -= c->stream->bandwidth;
966 /* signal that there is no feed if we are the feeder socket */
967 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
968 c->stream->feed_opened = 0;
972 av_freep(&c->pb_buffer);
973 av_freep(&c->packet_buffer);
974 av_freep(&c->buffer);
979 static int handle_connection(HTTPContext *c)
985 case HTTPSTATE_WAIT_REQUEST:
986 case RTSPSTATE_WAIT_REQUEST:
988 if ((c->timeout - cur_time) < 0)
990 if (c->poll_entry->revents & (POLLERR | POLLHUP))
993 /* no need to read if no events */
994 if (!(c->poll_entry->revents & POLLIN))
998 if (!(len = recv(c->fd, c->buffer_ptr, 1, 0)))
1002 if (ff_neterrno() != AVERROR(EAGAIN) &&
1003 ff_neterrno() != AVERROR(EINTR))
1007 /* search for end of request. */
1008 c->buffer_ptr += len;
1009 ptr = c->buffer_ptr;
1010 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
1011 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
1012 /* request found : parse it and reply */
1013 if (c->state == HTTPSTATE_WAIT_REQUEST)
1014 ret = http_parse_request(c);
1016 ret = rtsp_parse_request(c);
1020 } else if (ptr >= c->buffer_end) {
1021 /* request too long: cannot do anything */
1023 } else goto read_loop;
1027 case HTTPSTATE_SEND_HEADER:
1028 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1031 /* no need to write if no events */
1032 if (!(c->poll_entry->revents & POLLOUT))
1034 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1036 if (ff_neterrno() != AVERROR(EAGAIN) &&
1037 ff_neterrno() != AVERROR(EINTR)) {
1038 goto close_connection;
1042 c->buffer_ptr += len;
1044 c->stream->bytes_served += len;
1045 c->data_count += len;
1046 if (c->buffer_ptr >= c->buffer_end) {
1047 av_freep(&c->pb_buffer);
1048 /* if error, exit */
1051 /* all the buffer was sent : synchronize to the incoming
1053 c->state = HTTPSTATE_SEND_DATA_HEADER;
1054 c->buffer_ptr = c->buffer_end = c->buffer;
1058 case HTTPSTATE_SEND_DATA:
1059 case HTTPSTATE_SEND_DATA_HEADER:
1060 case HTTPSTATE_SEND_DATA_TRAILER:
1061 /* for packetized output, we consider we can always write (the
1062 * input streams set the speed). It may be better to verify
1063 * that we do not rely too much on the kernel queues */
1064 if (!c->is_packetized) {
1065 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1068 /* no need to read if no events */
1069 if (!(c->poll_entry->revents & POLLOUT))
1072 if (http_send_data(c) < 0)
1074 /* close connection if trailer sent */
1075 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1077 /* Check if it is a single jpeg frame 123 */
1078 if (c->stream->single_frame && c->data_count > c->cur_frame_bytes && c->cur_frame_bytes > 0) {
1079 close_connection(c);
1082 case HTTPSTATE_RECEIVE_DATA:
1083 /* no need to read if no events */
1084 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1086 if (!(c->poll_entry->revents & POLLIN))
1088 if (http_receive_data(c) < 0)
1091 case HTTPSTATE_WAIT_FEED:
1092 /* no need to read if no events */
1093 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
1096 /* nothing to do, we'll be waken up by incoming feed packets */
1099 case RTSPSTATE_SEND_REPLY:
1100 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1101 goto close_connection;
1102 /* no need to write if no events */
1103 if (!(c->poll_entry->revents & POLLOUT))
1105 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
1107 if (ff_neterrno() != AVERROR(EAGAIN) &&
1108 ff_neterrno() != AVERROR(EINTR)) {
1109 goto close_connection;
1113 c->buffer_ptr += len;
1114 c->data_count += len;
1115 if (c->buffer_ptr >= c->buffer_end) {
1116 /* all the buffer was sent : wait for a new request */
1117 av_freep(&c->pb_buffer);
1118 start_wait_request(c, 1);
1121 case RTSPSTATE_SEND_PACKET:
1122 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1123 av_freep(&c->packet_buffer);
1126 /* no need to write if no events */
1127 if (!(c->poll_entry->revents & POLLOUT))
1129 len = send(c->fd, c->packet_buffer_ptr,
1130 c->packet_buffer_end - c->packet_buffer_ptr, 0);
1132 if (ff_neterrno() != AVERROR(EAGAIN) &&
1133 ff_neterrno() != AVERROR(EINTR)) {
1134 /* error : close connection */
1135 av_freep(&c->packet_buffer);
1140 c->packet_buffer_ptr += len;
1141 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1142 /* all the buffer was sent : wait for a new request */
1143 av_freep(&c->packet_buffer);
1144 c->state = RTSPSTATE_WAIT_REQUEST;
1147 case HTTPSTATE_READY:
1156 av_freep(&c->pb_buffer);
1160 static int extract_rates(char *rates, int ratelen, const char *request)
1164 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1165 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
1166 const char *q = p + 7;
1168 while (*q && *q != '\n' && av_isspace(*q))
1171 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1177 memset(rates, 0xff, ratelen);
1180 while (*q && *q != '\n' && *q != ':')
1183 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
1187 if (stream_no < ratelen && stream_no >= 0)
1188 rates[stream_no] = rate_no;
1190 while (*q && *q != '\n' && !av_isspace(*q))
1197 p = strchr(p, '\n');
1207 static int find_stream_in_feed(FFServerStream *feed, AVCodecParameters *codec,
1211 int best_bitrate = 100000000;
1214 for (i = 0; i < feed->nb_streams; i++) {
1215 AVCodecParameters *feed_codec = feed->streams[i]->codecpar;
1217 if (feed_codec->codec_id != codec->codec_id ||
1218 feed_codec->sample_rate != codec->sample_rate ||
1219 feed_codec->width != codec->width ||
1220 feed_codec->height != codec->height)
1223 /* Potential stream */
1225 /* We want the fastest stream less than bit_rate, or the slowest
1226 * faster than bit_rate
1229 if (feed_codec->bit_rate <= bit_rate) {
1230 if (best_bitrate > bit_rate ||
1231 feed_codec->bit_rate > best_bitrate) {
1232 best_bitrate = feed_codec->bit_rate;
1237 if (feed_codec->bit_rate < best_bitrate) {
1238 best_bitrate = feed_codec->bit_rate;
1245 static int modify_current_stream(HTTPContext *c, char *rates)
1248 FFServerStream *req = c->stream;
1249 int action_required = 0;
1251 /* Not much we can do for a feed */
1255 for (i = 0; i < req->nb_streams; i++) {
1256 AVCodecParameters *codec = req->streams[i]->codecpar;
1260 c->switch_feed_streams[i] = req->feed_streams[i];
1263 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
1266 /* Wants off or slow */
1267 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1269 /* This doesn't work well when it turns off the only stream! */
1270 c->switch_feed_streams[i] = -2;
1271 c->feed_streams[i] = -2;
1276 if (c->switch_feed_streams[i] >= 0 &&
1277 c->switch_feed_streams[i] != c->feed_streams[i]) {
1278 action_required = 1;
1282 return action_required;
1285 static void get_word(char *buf, int buf_size, const char **pp)
1290 #define SPACE_CHARS " \t\r\n"
1293 p += strspn(p, SPACE_CHARS);
1295 while (!av_isspace(*p) && *p != '\0') {
1296 if ((q - buf) < buf_size - 1)
1305 static FFServerIPAddressACL* parse_dynamic_acl(FFServerStream *stream,
1311 FFServerIPAddressACL *acl = NULL;
1315 f = fopen(stream->dynamic_acl, "r");
1317 perror(stream->dynamic_acl);
1321 acl = av_mallocz(sizeof(FFServerIPAddressACL));
1328 while (fgets(line, sizeof(line), f)) {
1331 while (av_isspace(*p))
1333 if (*p == '\0' || *p == '#')
1335 ffserver_get_arg(cmd, sizeof(cmd), &p);
1337 if (!av_strcasecmp(cmd, "ACL"))
1338 ffserver_parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl,
1346 static void free_acl_list(FFServerIPAddressACL *in_acl)
1348 FFServerIPAddressACL *pacl, *pacl2;
1358 static int validate_acl_list(FFServerIPAddressACL *in_acl, HTTPContext *c)
1360 enum FFServerIPAddressAction last_action = IP_DENY;
1361 FFServerIPAddressACL *acl;
1362 struct in_addr *src = &c->from_addr.sin_addr;
1363 unsigned long src_addr = src->s_addr;
1365 for (acl = in_acl; acl; acl = acl->next) {
1366 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
1367 return (acl->action == IP_ALLOW) ? 1 : 0;
1368 last_action = acl->action;
1371 /* Nothing matched, so return not the last action */
1372 return (last_action == IP_DENY) ? 1 : 0;
1375 static int validate_acl(FFServerStream *stream, HTTPContext *c)
1378 FFServerIPAddressACL *acl;
1380 /* if stream->acl is null validate_acl_list will return 1 */
1381 ret = validate_acl_list(stream->acl, c);
1383 if (stream->dynamic_acl[0]) {
1384 acl = parse_dynamic_acl(stream, c);
1385 ret = validate_acl_list(acl, c);
1393 * compute the real filename of a file by matching it without its
1394 * extensions to all the stream's filenames
1396 static void compute_real_filename(char *filename, int max_size)
1401 FFServerStream *stream;
1403 av_strlcpy(file1, filename, sizeof(file1));
1404 p = strrchr(file1, '.');
1407 for(stream = config.first_stream; stream; stream = stream->next) {
1408 av_strlcpy(file2, stream->filename, sizeof(file2));
1409 p = strrchr(file2, '.');
1412 if (!strcmp(file1, file2)) {
1413 av_strlcpy(filename, stream->filename, max_size);
1428 /* parse HTTP request and prepare header */
1429 static int http_parse_request(HTTPContext *c)
1433 enum RedirType redir_type;
1435 char info[1024], filename[1024];
1439 char *encoded_msg = NULL;
1440 const char *mime_type;
1441 FFServerStream *stream;
1444 const char *useragent = 0;
1447 get_word(cmd, sizeof(cmd), &p);
1448 av_strlcpy(c->method, cmd, sizeof(c->method));
1450 if (!strcmp(cmd, "GET"))
1452 else if (!strcmp(cmd, "POST"))
1457 get_word(url, sizeof(url), &p);
1458 av_strlcpy(c->url, url, sizeof(c->url));
1460 get_word(protocol, sizeof(protocol), (const char **)&p);
1461 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1464 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
1467 http_log("%s - - New connection: %s %s\n",
1468 inet_ntoa(c->from_addr.sin_addr), cmd, url);
1470 /* find the filename and the optional info string in the request */
1471 p1 = strchr(url, '?');
1473 av_strlcpy(info, p1, sizeof(info));
1478 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
1480 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1481 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
1483 if (*useragent && *useragent != '\n' && av_isspace(*useragent))
1487 p = strchr(p, '\n');
1494 redir_type = REDIR_NONE;
1495 if (av_match_ext(filename, "asx")) {
1496 redir_type = REDIR_ASX;
1497 filename[strlen(filename)-1] = 'f';
1498 } else if (av_match_ext(filename, "asf") &&
1499 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8))) {
1500 /* if this isn't WMP or lookalike, return the redirector file */
1501 redir_type = REDIR_ASF;
1502 } else if (av_match_ext(filename, "rpm,ram")) {
1503 redir_type = REDIR_RAM;
1504 strcpy(filename + strlen(filename)-2, "m");
1505 } else if (av_match_ext(filename, "rtsp")) {
1506 redir_type = REDIR_RTSP;
1507 compute_real_filename(filename, sizeof(filename) - 1);
1508 } else if (av_match_ext(filename, "sdp")) {
1509 redir_type = REDIR_SDP;
1510 compute_real_filename(filename, sizeof(filename) - 1);
1513 /* "redirect" request to index.html */
1514 if (!strlen(filename))
1515 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
1517 stream = config.first_stream;
1519 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
1521 stream = stream->next;
1524 snprintf(msg, sizeof(msg), "File '%s' not found", url);
1525 http_log("File '%s' not found\n", url);
1530 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1531 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1533 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1534 c->http_error = 301;
1536 snprintf(q, c->buffer_size,
1537 "HTTP/1.0 301 Moved\r\n"
1539 "Content-type: text/html\r\n"
1542 "<html><head><title>Moved</title></head><body>\r\n"
1543 "You should be <a href=\"%s\">redirected</a>.\r\n"
1544 "</body></html>\r\n",
1545 stream->feed_filename, stream->feed_filename);
1547 /* prepare output buffer */
1548 c->buffer_ptr = c->buffer;
1550 c->state = HTTPSTATE_SEND_HEADER;
1554 /* If this is WMP, get the rate information */
1555 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1556 if (modify_current_stream(c, ratebuf)) {
1557 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
1558 if (c->switch_feed_streams[i] >= 0)
1559 c->switch_feed_streams[i] = -1;
1564 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1565 current_bandwidth += stream->bandwidth;
1567 /* If already streaming this feed, do not let another feeder start */
1568 if (stream->feed_opened) {
1569 snprintf(msg, sizeof(msg), "This feed is already being received.");
1570 http_log("Feed '%s' already being received\n", stream->feed_filename);
1574 if (c->post == 0 && config.max_bandwidth < current_bandwidth) {
1575 c->http_error = 503;
1577 snprintf(q, c->buffer_size,
1578 "HTTP/1.0 503 Server too busy\r\n"
1579 "Content-type: text/html\r\n"
1582 "<html><head><title>Too busy</title></head><body>\r\n"
1583 "<p>The server is too busy to serve your request at "
1584 "this time.</p>\r\n"
1585 "<p>The bandwidth being served (including your stream) "
1586 "is %"PRIu64"kbit/s, and this exceeds the limit of "
1587 "%"PRIu64"kbit/s.</p>\r\n"
1588 "</body></html>\r\n",
1589 current_bandwidth, config.max_bandwidth);
1591 /* prepare output buffer */
1592 c->buffer_ptr = c->buffer;
1594 c->state = HTTPSTATE_SEND_HEADER;
1598 if (redir_type != REDIR_NONE) {
1599 const char *hostinfo = 0;
1601 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1602 if (av_strncasecmp(p, "Host:", 5) == 0) {
1606 p = strchr(p, '\n');
1617 while (av_isspace(*hostinfo))
1620 eoh = strchr(hostinfo, '\n');
1622 if (eoh[-1] == '\r')
1625 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1626 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1627 hostbuf[eoh - hostinfo] = 0;
1629 c->http_error = 200;
1631 switch(redir_type) {
1633 snprintf(q, c->buffer_size,
1634 "HTTP/1.0 200 ASX Follows\r\n"
1635 "Content-type: video/x-ms-asf\r\n"
1637 "<ASX Version=\"3\">\r\n"
1638 //"<!-- Autogenerated by ffserver -->\r\n"
1639 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1640 "</ASX>\r\n", hostbuf, filename, info);
1644 snprintf(q, c->buffer_size,
1645 "HTTP/1.0 200 RAM Follows\r\n"
1646 "Content-type: audio/x-pn-realaudio\r\n"
1648 "# Autogenerated by ffserver\r\n"
1649 "http://%s/%s%s\r\n", hostbuf, filename, info);
1653 snprintf(q, c->buffer_size,
1654 "HTTP/1.0 200 ASF Redirect follows\r\n"
1655 "Content-type: video/x-ms-asf\r\n"
1658 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
1663 char hostname[256], *p;
1664 /* extract only hostname */
1665 av_strlcpy(hostname, hostbuf, sizeof(hostname));
1666 p = strrchr(hostname, ':');
1669 snprintf(q, c->buffer_size,
1670 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1671 /* XXX: incorrect MIME type ? */
1672 "Content-type: application/x-rtsp\r\n"
1674 "rtsp://%s:%d/%s\r\n", hostname, ntohs(config.rtsp_addr.sin_port), filename);
1683 struct sockaddr_in my_addr;
1685 snprintf(q, c->buffer_size,
1686 "HTTP/1.0 200 OK\r\n"
1687 "Content-type: application/sdp\r\n"
1691 len = sizeof(my_addr);
1693 /* XXX: Should probably fail? */
1694 if (getsockname(c->fd, (struct sockaddr *)&my_addr, &len))
1695 http_log("getsockname() failed\n");
1697 /* XXX: should use a dynamic buffer */
1698 sdp_data_size = prepare_sdp_description(stream,
1701 if (sdp_data_size > 0) {
1702 memcpy(q, sdp_data, sdp_data_size);
1705 av_freep(&sdp_data);
1714 /* prepare output buffer */
1715 c->buffer_ptr = c->buffer;
1717 c->state = HTTPSTATE_SEND_HEADER;
1723 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
1727 stream->conns_served++;
1729 /* XXX: add there authenticate and IP match */
1732 /* if post, it means a feed is being sent */
1733 if (!stream->is_feed) {
1734 /* However it might be a status report from WMP! Let us log the
1735 * data as it might come handy one day. */
1736 const char *logline = 0;
1739 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1740 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1744 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
1745 client_id = strtol(p + 18, 0, 10);
1746 p = strchr(p, '\n');
1754 char *eol = strchr(logline, '\n');
1759 if (eol[-1] == '\r')
1761 http_log("%.*s\n", (int) (eol - logline), logline);
1762 c->suppress_log = 1;
1767 http_log("\nGot request:\n%s\n", c->buffer);
1770 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1773 /* Now we have to find the client_id */
1774 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1775 if (wmpc->wmp_client_id == client_id)
1779 if (wmpc && modify_current_stream(wmpc, ratebuf))
1780 wmpc->switch_pending = 1;
1783 snprintf(msg, sizeof(msg), "POST command not handled");
1787 if (http_start_receive_data(c) < 0) {
1788 snprintf(msg, sizeof(msg), "could not open feed");
1792 c->state = HTTPSTATE_RECEIVE_DATA;
1797 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
1798 http_log("\nGot request:\n%s\n", c->buffer);
1801 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1804 /* open input stream */
1805 if (open_input_stream(c, info) < 0) {
1806 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
1810 /* prepare HTTP header */
1812 av_strlcatf(c->buffer, c->buffer_size, "HTTP/1.0 200 OK\r\n");
1813 mime_type = c->stream->fmt->mime_type;
1815 mime_type = "application/x-octet-stream";
1816 av_strlcatf(c->buffer, c->buffer_size, "Pragma: no-cache\r\n");
1818 /* for asf, we need extra headers */
1819 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
1820 /* Need to allocate a client id */
1822 c->wmp_client_id = av_lfg_get(&random_state);
1824 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);
1826 av_strlcatf(c->buffer, c->buffer_size, "Content-Type: %s\r\n", mime_type);
1827 av_strlcatf(c->buffer, c->buffer_size, "\r\n");
1828 q = c->buffer + strlen(c->buffer);
1830 /* prepare output buffer */
1832 c->buffer_ptr = c->buffer;
1834 c->state = HTTPSTATE_SEND_HEADER;
1837 c->http_error = 404;
1839 if (!htmlencode(msg, &encoded_msg)) {
1840 http_log("Could not encode filename '%s' as HTML\n", msg);
1842 snprintf(q, c->buffer_size,
1843 "HTTP/1.0 404 Not Found\r\n"
1844 "Content-type: text/html\r\n"
1849 "<meta charset=\"UTF-8\">\n"
1850 "<title>404 Not Found</title>\n"
1853 "</html>\n", encoded_msg? encoded_msg : "File not found");
1855 /* prepare output buffer */
1856 c->buffer_ptr = c->buffer;
1858 c->state = HTTPSTATE_SEND_HEADER;
1859 av_freep(&encoded_msg);
1863 /* horrible: we use this value to avoid
1864 * going to the send data state */
1865 c->http_error = 200;
1866 c->state = HTTPSTATE_SEND_HEADER;
1870 static void fmt_bytecount(AVIOContext *pb, int64_t count)
1872 static const char suffix[] = " kMGTP";
1875 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
1877 avio_printf(pb, "%"PRId64"%c", count, *s);
1880 static inline void print_stream_params(AVIOContext *pb, FFServerStream *stream)
1883 const char *type = "unknown";
1884 char parameters[64];
1885 LayeredAVStream *st;
1888 stream_no = stream->nb_streams;
1890 avio_printf(pb, "<table><tr><th>Stream<th>"
1891 "type<th>kbit/s<th>codec<th>"
1894 for (i = 0; i < stream_no; i++) {
1895 st = stream->streams[i];
1896 codec = avcodec_find_encoder(st->codecpar->codec_id);
1900 switch(st->codecpar->codec_type) {
1901 case AVMEDIA_TYPE_AUDIO:
1903 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz",
1904 st->codecpar->channels, st->codecpar->sample_rate);
1906 case AVMEDIA_TYPE_VIDEO:
1908 snprintf(parameters, sizeof(parameters),
1909 "%dx%d, q=%d-%d, fps=%d", st->codecpar->width,
1910 st->codecpar->height, st->codec->qmin, st->codec->qmax,
1911 st->time_base.den / st->time_base.num);
1917 avio_printf(pb, "<tr><td>%d<td>%s<td>%"PRId64
1919 i, type, (int64_t)st->codecpar->bit_rate/1000,
1920 codec ? codec->name : "", parameters);
1923 avio_printf(pb, "</table>\n");
1926 static void clean_html(char *clean, int clean_len, char *dirty)
1930 for (o = i = 0; o+10 < clean_len && dirty[i];) {
1931 int len = strspn(dirty+i, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ$-_.+!*(),?/ :;%");
1933 if (o + len >= clean_len)
1935 memcpy(clean + o, dirty + i, len);
1941 case '&': av_strlcat(clean+o, "&" , clean_len - o); break;
1942 case '<': av_strlcat(clean+o, "<" , clean_len - o); break;
1943 case '>': av_strlcat(clean+o, ">" , clean_len - o); break;
1944 case '\'': av_strlcat(clean+o, "'" , clean_len - o); break;
1945 case '\"': av_strlcat(clean+o, """ , clean_len - o); break;
1946 default: av_strlcat(clean+o, "☹", clean_len - o); break;
1948 o += strlen(clean+o);
1954 static void compute_status(HTTPContext *c)
1957 FFServerStream *stream;
1963 if (avio_open_dyn_buf(&pb) < 0) {
1964 /* XXX: return an error ? */
1965 c->buffer_ptr = c->buffer;
1966 c->buffer_end = c->buffer;
1970 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1971 avio_printf(pb, "Content-type: text/html\r\n");
1972 avio_printf(pb, "Pragma: no-cache\r\n");
1973 avio_printf(pb, "\r\n");
1975 avio_printf(pb, "<!DOCTYPE html>\n");
1976 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
1977 if (c->stream->feed_filename[0])
1978 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n",
1979 c->stream->feed_filename);
1980 avio_printf(pb, "</head>\n<body>");
1981 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
1983 avio_printf(pb, "<h2>Available Streams</h2>\n");
1984 avio_printf(pb, "<table>\n");
1985 avio_printf(pb, "<tr><th>Path<th>Served<br>Conns<th><br>bytes<th>Format<th>Bit rate<br>kbit/s<th>Video<br>kbit/s<th><br>Codec<th>Audio<br>kbit/s<th><br>Codec<th>Feed\n");
1986 stream = config.first_stream;
1988 char sfilename[1024];
1991 if (stream->feed == stream) {
1992 stream = stream->next;
1996 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
1997 eosf = sfilename + strlen(sfilename);
1998 if (eosf - sfilename >= 4) {
1999 if (strcmp(eosf - 4, ".asf") == 0)
2000 strcpy(eosf - 4, ".asx");
2001 else if (strcmp(eosf - 3, ".rm") == 0)
2002 strcpy(eosf - 3, ".ram");
2003 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
2004 /* generate a sample RTSP director if
2005 * unicast. Generate an SDP redirector if
2007 eosf = strrchr(sfilename, '.');
2009 eosf = sfilename + strlen(sfilename);
2010 if (stream->is_multicast)
2011 strcpy(eosf, ".sdp");
2013 strcpy(eosf, ".rtsp");
2017 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
2018 sfilename, stream->filename);
2019 avio_printf(pb, "<td> %d <td> ",
2020 stream->conns_served);
2021 // TODO: Investigate if we can make http bitexact so it always produces the same count of bytes
2022 if (!config.bitexact)
2023 fmt_bytecount(pb, stream->bytes_served);
2025 switch(stream->stream_type) {
2026 case STREAM_TYPE_LIVE: {
2027 int audio_bit_rate = 0;
2028 int video_bit_rate = 0;
2029 const char *audio_codec_name = "";
2030 const char *video_codec_name = "";
2031 const char *audio_codec_name_extra = "";
2032 const char *video_codec_name_extra = "";
2034 for(i=0;i<stream->nb_streams;i++) {
2035 LayeredAVStream *st = stream->streams[i];
2036 AVCodec *codec = avcodec_find_encoder(st->codecpar->codec_id);
2038 switch(st->codecpar->codec_type) {
2039 case AVMEDIA_TYPE_AUDIO:
2040 audio_bit_rate += st->codecpar->bit_rate;
2042 if (*audio_codec_name)
2043 audio_codec_name_extra = "...";
2044 audio_codec_name = codec->name;
2047 case AVMEDIA_TYPE_VIDEO:
2048 video_bit_rate += st->codecpar->bit_rate;
2050 if (*video_codec_name)
2051 video_codec_name_extra = "...";
2052 video_codec_name = codec->name;
2055 case AVMEDIA_TYPE_DATA:
2056 video_bit_rate += st->codecpar->bit_rate;
2063 avio_printf(pb, "<td> %s <td> %d <td> %d <td> %s %s <td> "
2065 stream->fmt->name, stream->bandwidth,
2066 video_bit_rate / 1000, video_codec_name,
2067 video_codec_name_extra, audio_bit_rate / 1000,
2068 audio_codec_name, audio_codec_name_extra);
2071 avio_printf(pb, "<td>%s", stream->feed->filename);
2073 avio_printf(pb, "<td>%s", stream->feed_filename);
2074 avio_printf(pb, "\n");
2078 avio_printf(pb, "<td> - <td> - "
2079 "<td> - <td><td> - <td>\n");
2082 stream = stream->next;
2084 avio_printf(pb, "</table>\n");
2086 stream = config.first_stream;
2089 if (stream->feed != stream) {
2090 stream = stream->next;
2094 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
2096 avio_printf(pb, "Running as pid %"PRId64".\n", (int64_t) stream->pid);
2103 /* This is somewhat linux specific I guess */
2104 snprintf(ps_cmd, sizeof(ps_cmd),
2105 "ps -o \"%%cpu,cputime\" --no-headers %"PRId64"",
2106 (int64_t) stream->pid);
2108 pid_stat = popen(ps_cmd, "r");
2113 if (fscanf(pid_stat, "%9s %63s", cpuperc, cpuused) == 2) {
2114 avio_printf(pb, "Currently using %s%% of the cpu. "
2115 "Total time used %s.\n",
2123 avio_printf(pb, "<p>");
2126 print_stream_params(pb, stream);
2127 stream = stream->next;
2130 /* connection status */
2131 avio_printf(pb, "<h2>Connection Status</h2>\n");
2133 avio_printf(pb, "Number of connections: %d / %d<br>\n",
2134 nb_connections, config.nb_max_connections);
2136 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
2137 current_bandwidth, config.max_bandwidth);
2139 avio_printf(pb, "<table>\n");
2140 avio_printf(pb, "<tr><th>#<th>File<th>IP<th>URL<th>Proto<th>State<th>Target "
2141 "bit/s<th>Actual bit/s<th>Bytes transferred\n");
2142 c1 = first_http_ctx;
2150 for (j = 0; j < c1->stream->nb_streams; j++) {
2151 if (!c1->stream->feed)
2152 bitrate += c1->stream->streams[j]->codecpar->bit_rate;
2153 else if (c1->feed_streams[j] >= 0)
2154 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codecpar->bit_rate;
2159 p = inet_ntoa(c1->from_addr.sin_addr);
2160 clean_html(c1->clean_url, sizeof(c1->clean_url), c1->url);
2161 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td>%s"
2163 i, c1->stream ? c1->stream->filename : "",
2164 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
2167 c1->protocol, http_state[c1->state]);
2168 fmt_bytecount(pb, bitrate);
2169 avio_printf(pb, "<td>");
2170 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
2171 avio_printf(pb, "<td>");
2172 fmt_bytecount(pb, c1->data_count);
2173 avio_printf(pb, "\n");
2176 avio_printf(pb, "</table>\n");
2178 if (!config.bitexact) {
2182 avio_printf(pb, "<hr>Generated at %s", p);
2184 avio_printf(pb, "</body>\n</html>\n");
2186 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2187 c->buffer_ptr = c->pb_buffer;
2188 c->buffer_end = c->pb_buffer + len;
2191 static int open_input_stream(HTTPContext *c, const char *info)
2194 char input_filename[1024];
2195 AVFormatContext *s = NULL;
2196 int buf_size, i, ret;
2199 /* find file name */
2200 if (c->stream->feed) {
2201 strcpy(input_filename, c->stream->feed->feed_filename);
2202 buf_size = FFM_PACKET_SIZE;
2203 /* compute position (absolute time) */
2204 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2205 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0) {
2206 http_log("Invalid date specification '%s' for stream\n", buf);
2209 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
2210 int prebuffer = strtol(buf, 0, 10);
2211 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
2213 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
2215 strcpy(input_filename, c->stream->feed_filename);
2217 /* compute position (relative time) */
2218 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
2219 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0) {
2220 http_log("Invalid date specification '%s' for stream\n", buf);
2226 if (!input_filename[0]) {
2227 http_log("No filename was specified for stream\n");
2228 return AVERROR(EINVAL);
2232 ret = avformat_open_input(&s, input_filename, c->stream->ifmt,
2233 &c->stream->in_opts);
2235 http_log("Could not open input '%s': %s\n",
2236 input_filename, av_err2str(ret));
2240 /* set buffer size */
2242 ret = ffio_set_buf_size(s->pb, buf_size);
2244 http_log("Failed to set buffer size\n");
2249 s->flags |= AVFMT_FLAG_GENPTS;
2251 if (strcmp(s->iformat->name, "ffm") &&
2252 (ret = avformat_find_stream_info(c->fmt_in, NULL)) < 0) {
2253 http_log("Could not find stream info for input '%s'\n", input_filename);
2254 avformat_close_input(&s);
2258 /* choose stream as clock source (we favor the video stream if
2259 * present) for packet sending */
2260 c->pts_stream_index = 0;
2261 for(i=0;i<c->stream->nb_streams;i++) {
2262 if (c->pts_stream_index == 0 &&
2263 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2264 c->pts_stream_index = i;
2268 if (c->fmt_in->iformat->read_seek)
2269 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2270 /* set the start time (needed for maxtime and RTP packet timing) */
2271 c->start_time = cur_time;
2272 c->first_pts = AV_NOPTS_VALUE;
2276 /* return the server clock (in us) */
2277 static int64_t get_server_clock(HTTPContext *c)
2279 /* compute current pts value from system time */
2280 return (cur_time - c->start_time) * 1000;
2283 /* return the estimated time (in us) at which the current packet must be sent */
2284 static int64_t get_packet_send_clock(HTTPContext *c)
2286 int bytes_left, bytes_sent, frame_bytes;
2288 frame_bytes = c->cur_frame_bytes;
2289 if (frame_bytes <= 0)
2292 bytes_left = c->buffer_end - c->buffer_ptr;
2293 bytes_sent = frame_bytes - bytes_left;
2294 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2298 static int http_prepare_data(HTTPContext *c)
2301 AVFormatContext *ctx;
2303 av_freep(&c->pb_buffer);
2305 case HTTPSTATE_SEND_DATA_HEADER:
2306 ctx = avformat_alloc_context();
2308 return AVERROR(ENOMEM);
2310 av_dict_copy(&(c->pfmt_ctx->metadata), c->stream->metadata, 0);
2312 for(i=0;i<c->stream->nb_streams;i++) {
2313 LayeredAVStream *src;
2314 AVStream *st = avformat_new_stream(c->pfmt_ctx, NULL);
2316 return AVERROR(ENOMEM);
2318 /* if file or feed, then just take streams from FFServerStream
2320 if (!c->stream->feed ||
2321 c->stream->feed == c->stream)
2322 src = c->stream->streams[i];
2324 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2326 unlayer_stream(c->pfmt_ctx->streams[i], src); //TODO we no longer copy st->internal, does this matter?
2327 av_assert0(!c->pfmt_ctx->streams[i]->priv_data);
2329 if (src->codec->flags & AV_CODEC_FLAG_BITEXACT)
2330 c->pfmt_ctx->flags |= AVFMT_FLAG_BITEXACT;
2332 /* set output format parameters */
2333 c->pfmt_ctx->oformat = c->stream->fmt;
2334 av_assert0(c->pfmt_ctx->nb_streams == c->stream->nb_streams);
2336 c->got_key_frame = 0;
2338 /* prepare header and save header data in a stream */
2339 if (avio_open_dyn_buf(&c->pfmt_ctx->pb) < 0) {
2340 /* XXX: potential leak */
2343 c->pfmt_ctx->pb->seekable = 0;
2346 * HACK to avoid MPEG-PS muxer to spit many underflow errors
2347 * Default value from FFmpeg
2348 * Try to set it using configuration option
2350 c->pfmt_ctx->max_delay = (int)(0.7*AV_TIME_BASE);
2352 if ((ret = avformat_write_header(c->pfmt_ctx, NULL)) < 0) {
2353 http_log("Error writing output header for stream '%s': %s\n",
2354 c->stream->filename, av_err2str(ret));
2357 av_dict_free(&c->pfmt_ctx->metadata);
2359 len = avio_close_dyn_buf(c->pfmt_ctx->pb, &c->pb_buffer);
2360 c->buffer_ptr = c->pb_buffer;
2361 c->buffer_end = c->pb_buffer + len;
2363 c->state = HTTPSTATE_SEND_DATA;
2364 c->last_packet_sent = 0;
2366 case HTTPSTATE_SEND_DATA:
2367 /* find a new packet */
2368 /* read a packet from the input stream */
2369 if (c->stream->feed)
2370 ffm_set_write_index(c->fmt_in,
2371 c->stream->feed->feed_write_index,
2372 c->stream->feed->feed_size);
2374 if (c->stream->max_time &&
2375 c->stream->max_time + c->start_time - cur_time < 0)
2376 /* We have timed out */
2377 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2381 ret = av_read_frame(c->fmt_in, &pkt);
2383 if (c->stream->feed) {
2384 /* if coming from feed, it means we reached the end of the
2385 * ffm file, so must wait for more data */
2386 c->state = HTTPSTATE_WAIT_FEED;
2387 return 1; /* state changed */
2389 if (ret == AVERROR(EAGAIN)) {
2390 /* input not ready, come back later */
2393 if (c->stream->loop) {
2394 avformat_close_input(&c->fmt_in);
2395 if (open_input_stream(c, "") < 0)
2400 /* must send trailer now because EOF or error */
2401 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2404 int source_index = pkt.stream_index;
2405 /* update first pts if needed */
2406 if (c->first_pts == AV_NOPTS_VALUE && pkt.dts != AV_NOPTS_VALUE) {
2407 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2408 c->start_time = cur_time;
2410 /* send it to the appropriate stream */
2411 if (c->stream->feed) {
2412 /* if coming from a feed, select the right stream */
2413 if (c->switch_pending) {
2414 c->switch_pending = 0;
2415 for(i=0;i<c->stream->nb_streams;i++) {
2416 if (c->switch_feed_streams[i] == pkt.stream_index)
2417 if (pkt.flags & AV_PKT_FLAG_KEY)
2418 c->switch_feed_streams[i] = -1;
2419 if (c->switch_feed_streams[i] >= 0)
2420 c->switch_pending = 1;
2423 for(i=0;i<c->stream->nb_streams;i++) {
2424 if (c->stream->feed_streams[i] == pkt.stream_index) {
2425 AVStream *st = c->fmt_in->streams[source_index];
2426 pkt.stream_index = i;
2427 if (pkt.flags & AV_PKT_FLAG_KEY &&
2428 (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
2429 c->stream->nb_streams == 1))
2430 c->got_key_frame = 1;
2431 if (!c->stream->send_on_key || c->got_key_frame)
2436 AVStream *ist, *ost;
2438 ist = c->fmt_in->streams[source_index];
2439 /* specific handling for RTP: we use several
2440 * output streams (one for each RTP connection).
2441 * XXX: need more abstract handling */
2442 if (c->is_packetized) {
2443 /* compute send time and duration */
2444 if (pkt.dts != AV_NOPTS_VALUE) {
2445 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
2446 c->cur_pts -= c->first_pts;
2448 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
2449 /* find RTP context */
2450 c->packet_stream_index = pkt.stream_index;
2451 ctx = c->rtp_ctx[c->packet_stream_index];
2453 av_packet_unref(&pkt);
2456 /* only one stream per RTP connection */
2457 pkt.stream_index = 0;
2463 if (c->is_packetized) {
2464 int max_packet_size;
2465 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
2466 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2468 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
2469 ret = ffio_open_dyn_packet_buf(&ctx->pb,
2472 ret = avio_open_dyn_buf(&ctx->pb);
2475 /* XXX: potential leak */
2478 ost = ctx->streams[pkt.stream_index];
2480 ctx->pb->seekable = 0;
2481 if (pkt.dts != AV_NOPTS_VALUE)
2482 pkt.dts = av_rescale_q(pkt.dts, ist->time_base,
2484 if (pkt.pts != AV_NOPTS_VALUE)
2485 pkt.pts = av_rescale_q(pkt.pts, ist->time_base,
2487 pkt.duration = av_rescale_q(pkt.duration, ist->time_base,
2489 if ((ret = av_write_frame(ctx, &pkt)) < 0) {
2490 http_log("Error writing frame to output for stream '%s': %s\n",
2491 c->stream->filename, av_err2str(ret));
2492 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2495 av_freep(&c->pb_buffer);
2496 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2498 c->cur_frame_bytes = len;
2499 c->buffer_ptr = c->pb_buffer;
2500 c->buffer_end = c->pb_buffer + len;
2503 av_packet_unref(&pkt);
2507 av_packet_unref(&pkt);
2512 case HTTPSTATE_SEND_DATA_TRAILER:
2513 /* last packet test ? */
2514 if (c->last_packet_sent || c->is_packetized)
2517 /* prepare header */
2518 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2519 /* XXX: potential leak */
2522 c->pfmt_ctx->pb->seekable = 0;
2523 av_write_trailer(ctx);
2524 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2525 c->buffer_ptr = c->pb_buffer;
2526 c->buffer_end = c->pb_buffer + len;
2528 c->last_packet_sent = 1;
2534 /* should convert the format at the same time */
2535 /* send data starting at c->buffer_ptr to the output connection
2536 * (either UDP or TCP)
2538 static int http_send_data(HTTPContext *c)
2543 if (c->buffer_ptr >= c->buffer_end) {
2544 ret = http_prepare_data(c);
2548 /* state change requested */
2551 if (c->is_packetized) {
2552 /* RTP data output */
2553 len = c->buffer_end - c->buffer_ptr;
2555 /* fail safe - should never happen */
2557 c->buffer_ptr = c->buffer_end;
2560 len = (c->buffer_ptr[0] << 24) |
2561 (c->buffer_ptr[1] << 16) |
2562 (c->buffer_ptr[2] << 8) |
2564 if (len > (c->buffer_end - c->buffer_ptr))
2566 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2567 /* nothing to send yet: we can wait */
2571 c->data_count += len;
2572 update_datarate(&c->datarate, c->data_count);
2574 c->stream->bytes_served += len;
2576 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
2577 /* RTP packets are sent inside the RTSP TCP connection */
2579 int interleaved_index, size;
2581 HTTPContext *rtsp_c;
2584 /* if no RTSP connection left, error */
2587 /* if already sending something, then wait. */
2588 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
2590 if (avio_open_dyn_buf(&pb) < 0)
2592 interleaved_index = c->packet_stream_index * 2;
2593 /* RTCP packets are sent at odd indexes */
2594 if (c->buffer_ptr[1] == 200)
2595 interleaved_index++;
2596 /* write RTSP TCP header */
2598 header[1] = interleaved_index;
2599 header[2] = len >> 8;
2601 avio_write(pb, header, 4);
2602 /* write RTP packet data */
2604 avio_write(pb, c->buffer_ptr, len);
2605 size = avio_close_dyn_buf(pb, &c->packet_buffer);
2606 /* prepare asynchronous TCP sending */
2607 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2608 rtsp_c->packet_buffer_end = c->packet_buffer + size;
2609 c->buffer_ptr += len;
2611 /* send everything we can NOW */
2612 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2613 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
2615 rtsp_c->packet_buffer_ptr += len;
2616 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2617 /* if we could not send all the data, we will
2618 * send it later, so a new state is needed to
2619 * "lock" the RTSP TCP connection */
2620 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2623 /* all data has been sent */
2624 av_freep(&c->packet_buffer);
2626 /* send RTP packet directly in UDP */
2628 ffurl_write(c->rtp_handles[c->packet_stream_index],
2629 c->buffer_ptr, len);
2630 c->buffer_ptr += len;
2631 /* here we continue as we can send several packets
2635 /* TCP data output */
2636 len = send(c->fd, c->buffer_ptr,
2637 c->buffer_end - c->buffer_ptr, 0);
2639 if (ff_neterrno() != AVERROR(EAGAIN) &&
2640 ff_neterrno() != AVERROR(EINTR))
2641 /* error : close connection */
2646 c->buffer_ptr += len;
2648 c->data_count += len;
2649 update_datarate(&c->datarate, c->data_count);
2651 c->stream->bytes_served += len;
2659 static int http_start_receive_data(HTTPContext *c)
2665 if (c->stream->feed_opened) {
2666 http_log("Stream feed '%s' was not opened\n",
2667 c->stream->feed_filename);
2668 return AVERROR(EINVAL);
2671 /* Don't permit writing to this one */
2672 if (c->stream->readonly) {
2673 http_log("Cannot write to read-only file '%s'\n",
2674 c->stream->feed_filename);
2675 return AVERROR(EINVAL);
2679 fd = open(c->stream->feed_filename, O_RDWR);
2681 ret = AVERROR(errno);
2682 http_log("Could not open feed file '%s': %s\n",
2683 c->stream->feed_filename, strerror(errno));
2688 if (c->stream->truncate) {
2689 /* truncate feed file */
2690 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2691 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2692 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2693 ret = AVERROR(errno);
2694 http_log("Error truncating feed file '%s': %s\n",
2695 c->stream->feed_filename, strerror(errno));
2699 ret64 = ffm_read_write_index(fd);
2701 http_log("Error reading write index from feed file '%s': %s\n",
2702 c->stream->feed_filename, strerror(errno));
2705 c->stream->feed_write_index = ret64;
2708 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd),
2710 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2711 lseek(fd, 0, SEEK_SET);
2713 /* init buffer input */
2714 c->buffer_ptr = c->buffer;
2715 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2716 c->stream->feed_opened = 1;
2717 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
2721 static int http_receive_data(HTTPContext *c)
2724 int len, loop_run = 0;
2726 while (c->chunked_encoding && !c->chunk_size &&
2727 c->buffer_end > c->buffer_ptr) {
2728 /* read chunk header, if present */
2729 len = recv(c->fd, c->buffer_ptr, 1, 0);
2732 if (ff_neterrno() != AVERROR(EAGAIN) &&
2733 ff_neterrno() != AVERROR(EINTR))
2734 /* error : close connection */
2737 } else if (len == 0) {
2738 /* end of connection : close it */
2740 } else if (c->buffer_ptr - c->buffer >= 2 &&
2741 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2742 c->chunk_size = strtol(c->buffer, 0, 16);
2743 if (c->chunk_size <= 0) { // end of stream or invalid chunk size
2747 c->buffer_ptr = c->buffer;
2749 } else if (++loop_run > 10)
2750 /* no chunk header, abort */
2756 if (c->buffer_end > c->buffer_ptr) {
2757 len = recv(c->fd, c->buffer_ptr,
2758 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
2760 if (ff_neterrno() != AVERROR(EAGAIN) &&
2761 ff_neterrno() != AVERROR(EINTR))
2762 /* error : close connection */
2764 } else if (len == 0)
2765 /* end of connection : close it */
2768 av_assert0(len <= c->chunk_size);
2769 c->chunk_size -= len;
2770 c->buffer_ptr += len;
2771 c->data_count += len;
2772 update_datarate(&c->datarate, c->data_count);
2776 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2777 if (c->buffer[0] != 'f' ||
2778 c->buffer[1] != 'm') {
2779 http_log("Feed stream has become desynchronized -- disconnecting\n");
2784 if (c->buffer_ptr >= c->buffer_end) {
2785 FFServerStream *feed = c->stream;
2786 /* a packet has been received : write it in the store, except
2788 if (c->data_count > FFM_PACKET_SIZE) {
2789 /* XXX: use llseek or url_seek
2790 * XXX: Should probably fail? */
2791 if (lseek(c->feed_fd, feed->feed_write_index, SEEK_SET) == -1)
2792 http_log("Seek to %"PRId64" failed\n", feed->feed_write_index);
2794 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2795 http_log("Error writing to feed file: %s\n", strerror(errno));
2799 feed->feed_write_index += FFM_PACKET_SIZE;
2800 /* update file size */
2801 if (feed->feed_write_index > c->stream->feed_size)
2802 feed->feed_size = feed->feed_write_index;
2804 /* handle wrap around if max file size reached */
2805 if (c->stream->feed_max_size &&
2806 feed->feed_write_index >= c->stream->feed_max_size)
2807 feed->feed_write_index = FFM_PACKET_SIZE;
2810 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2811 http_log("Error writing index to feed file: %s\n",
2816 /* wake up any waiting connections */
2817 for(c1 = first_http_ctx; c1; c1 = c1->next) {
2818 if (c1->state == HTTPSTATE_WAIT_FEED &&
2819 c1->stream->feed == c->stream->feed)
2820 c1->state = HTTPSTATE_SEND_DATA;
2823 /* We have a header in our hands that contains useful data */
2824 AVFormatContext *s = avformat_alloc_context();
2826 AVInputFormat *fmt_in;
2832 /* use feed output format name to find corresponding input format */
2833 fmt_in = av_find_input_format(feed->fmt->name);
2837 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2838 0, NULL, NULL, NULL, NULL);
2845 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
2850 /* Now we have the actual streams */
2851 if (s->nb_streams != feed->nb_streams) {
2852 avformat_close_input(&s);
2854 http_log("Feed '%s' stream number does not match registered feed\n",
2855 c->stream->feed_filename);
2859 for (i = 0; i < s->nb_streams; i++) {
2860 LayeredAVStream *fst = feed->streams[i];
2861 AVStream *st = s->streams[i];
2862 avcodec_parameters_to_context(fst->codec, st->codecpar);
2863 avcodec_parameters_from_context(fst->codecpar, fst->codec);
2866 avformat_close_input(&s);
2869 c->buffer_ptr = c->buffer;
2874 c->stream->feed_opened = 0;
2876 /* wake up any waiting connections to stop waiting for feed */
2877 for(c1 = first_http_ctx; c1; c1 = c1->next) {
2878 if (c1->state == HTTPSTATE_WAIT_FEED &&
2879 c1->stream->feed == c->stream->feed)
2880 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2885 /********************************************************************/
2888 static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2895 str = RTSP_STATUS_CODE2STRING(error_number);
2897 str = "Unknown Error";
2899 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2900 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2902 /* output GMT time */
2905 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
2906 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2909 static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2911 rtsp_reply_header(c, error_number);
2912 avio_printf(c->pb, "\r\n");
2915 static int rtsp_parse_request(HTTPContext *c)
2917 const char *p, *p1, *p2;
2923 RTSPMessageHeader header1 = { 0 }, *header = &header1;
2925 c->buffer_ptr[0] = '\0';
2928 get_word(cmd, sizeof(cmd), &p);
2929 get_word(url, sizeof(url), &p);
2930 get_word(protocol, sizeof(protocol), &p);
2932 av_strlcpy(c->method, cmd, sizeof(c->method));
2933 av_strlcpy(c->url, url, sizeof(c->url));
2934 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2936 if (avio_open_dyn_buf(&c->pb) < 0) {
2937 /* XXX: cannot do more */
2938 c->pb = NULL; /* safety */
2942 /* check version name */
2943 if (strcmp(protocol, "RTSP/1.0")) {
2944 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2948 /* parse each header line */
2949 /* skip to next line */
2950 while (*p != '\n' && *p != '\0')
2954 while (*p != '\0') {
2955 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2959 if (p2 > p && p2[-1] == '\r')
2961 /* skip empty line */
2965 if (len > sizeof(line) - 1)
2966 len = sizeof(line) - 1;
2967 memcpy(line, p, len);
2969 ff_rtsp_parse_line(NULL, header, line, NULL, NULL);
2973 /* handle sequence number */
2974 c->seq = header->seq;
2976 if (!strcmp(cmd, "DESCRIBE"))
2977 rtsp_cmd_describe(c, url);
2978 else if (!strcmp(cmd, "OPTIONS"))
2979 rtsp_cmd_options(c, url);
2980 else if (!strcmp(cmd, "SETUP"))
2981 rtsp_cmd_setup(c, url, header);
2982 else if (!strcmp(cmd, "PLAY"))
2983 rtsp_cmd_play(c, url, header);
2984 else if (!strcmp(cmd, "PAUSE"))
2985 rtsp_cmd_interrupt(c, url, header, 1);
2986 else if (!strcmp(cmd, "TEARDOWN"))
2987 rtsp_cmd_interrupt(c, url, header, 0);
2989 rtsp_reply_error(c, RTSP_STATUS_METHOD);
2992 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2993 c->pb = NULL; /* safety */
2995 /* XXX: cannot do more */
2998 c->buffer_ptr = c->pb_buffer;
2999 c->buffer_end = c->pb_buffer + len;
3000 c->state = RTSPSTATE_SEND_REPLY;
3004 static int prepare_sdp_description(FFServerStream *stream, uint8_t **pbuffer,
3005 struct in_addr my_ip)
3007 AVFormatContext *avc;
3008 AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL);
3009 AVDictionaryEntry *entry = av_dict_get(stream->metadata, "title", NULL, 0);
3014 avc = avformat_alloc_context();
3015 if (!avc || !rtp_format)
3018 avc->oformat = rtp_format;
3019 av_dict_set(&avc->metadata, "title",
3020 entry ? entry->value : "No Title", 0);
3021 if (stream->is_multicast) {
3022 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
3023 inet_ntoa(stream->multicast_ip),
3024 stream->multicast_port, stream->multicast_ttl);
3026 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
3028 for(i = 0; i < stream->nb_streams; i++) {
3029 AVStream *st = avformat_new_stream(avc, NULL);
3032 avcodec_parameters_from_context(stream->streams[i]->codecpar, stream->streams[i]->codec);
3033 unlayer_stream(st, stream->streams[i]);
3035 #define PBUFFER_SIZE 2048
3036 *pbuffer = av_mallocz(PBUFFER_SIZE);
3039 av_sdp_create(&avc, 1, *pbuffer, PBUFFER_SIZE);
3042 av_freep(&avc->streams);
3043 av_dict_free(&avc->metadata);
3046 return *pbuffer ? strlen(*pbuffer) : AVERROR(ENOMEM);
3049 static void rtsp_cmd_options(HTTPContext *c, const char *url)
3051 /* rtsp_reply_header(c, RTSP_STATUS_OK); */
3052 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
3053 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
3054 avio_printf(c->pb, "Public: %s\r\n",
3055 "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
3056 avio_printf(c->pb, "\r\n");
3059 static void rtsp_cmd_describe(HTTPContext *c, const char *url)
3061 FFServerStream *stream;
3067 struct sockaddr_in my_addr;
3069 /* find which URL is asked */
3070 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3075 for(stream = config.first_stream; stream; stream = stream->next) {
3076 if (!stream->is_feed &&
3077 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
3078 !strcmp(path, stream->filename)) {
3082 /* no stream found */
3083 rtsp_reply_error(c, RTSP_STATUS_NOT_FOUND);
3087 /* prepare the media description in SDP format */
3089 /* get the host IP */
3090 len = sizeof(my_addr);
3091 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
3092 content_length = prepare_sdp_description(stream, &content,
3094 if (content_length < 0) {
3095 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3098 rtsp_reply_header(c, RTSP_STATUS_OK);
3099 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3100 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3101 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3102 avio_printf(c->pb, "\r\n");
3103 avio_write(c->pb, content, content_length);
3107 static HTTPContext *find_rtp_session(const char *session_id)
3111 if (session_id[0] == '\0')
3114 for(c = first_http_ctx; c; c = c->next) {
3115 if (!strcmp(c->session_id, session_id))
3121 static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
3123 RTSPTransportField *th;
3126 for(i=0;i<h->nb_transports;i++) {
3127 th = &h->transports[i];
3128 if (th->lower_transport == lower_transport)
3134 static void rtsp_cmd_setup(HTTPContext *c, const char *url,
3135 RTSPMessageHeader *h)
3137 FFServerStream *stream;
3138 int stream_index, rtp_port, rtcp_port;
3143 RTSPTransportField *th;
3144 struct sockaddr_in dest_addr;
3145 RTSPActionServerSetup setup;
3147 /* find which URL is asked */
3148 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3153 /* now check each stream */
3154 for(stream = config.first_stream; stream; stream = stream->next) {
3155 if (stream->is_feed || !stream->fmt ||
3156 strcmp(stream->fmt->name, "rtp")) {
3159 /* accept aggregate filenames only if single stream */
3160 if (!strcmp(path, stream->filename)) {
3161 if (stream->nb_streams != 1) {
3162 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3169 for(stream_index = 0; stream_index < stream->nb_streams;
3171 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3172 stream->filename, stream_index);
3173 if (!strcmp(path, buf))
3177 /* no stream found */
3178 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3182 /* generate session id if needed */
3183 if (h->session_id[0] == '\0') {
3184 unsigned random0 = av_lfg_get(&random_state);
3185 unsigned random1 = av_lfg_get(&random_state);
3186 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
3190 /* find RTP session, and create it if none found */
3191 rtp_c = find_rtp_session(h->session_id);
3193 /* always prefer UDP */
3194 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
3196 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
3198 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3203 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
3204 th->lower_transport);
3206 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3210 /* open input stream */
3211 if (open_input_stream(rtp_c, "") < 0) {
3212 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3217 /* test if stream is OK (test needed because several SETUP needs
3218 * to be done for a given file) */
3219 if (rtp_c->stream != stream) {
3220 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3224 /* test if stream is already set up */
3225 if (rtp_c->rtp_ctx[stream_index]) {
3226 rtsp_reply_error(c, RTSP_STATUS_STATE);
3230 /* check transport */
3231 th = find_transport(h, rtp_c->rtp_protocol);
3232 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
3233 th->client_port_min <= 0)) {
3234 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3238 /* setup default options */
3239 setup.transport_option[0] = '\0';
3240 dest_addr = rtp_c->from_addr;
3241 dest_addr.sin_port = htons(th->client_port_min);
3244 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
3245 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3249 /* now everything is OK, so we can send the connection parameters */
3250 rtsp_reply_header(c, RTSP_STATUS_OK);
3252 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3254 switch(rtp_c->rtp_protocol) {
3255 case RTSP_LOWER_TRANSPORT_UDP:
3256 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3257 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
3258 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
3259 "client_port=%d-%d;server_port=%d-%d",
3260 th->client_port_min, th->client_port_max,
3261 rtp_port, rtcp_port);
3263 case RTSP_LOWER_TRANSPORT_TCP:
3264 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
3265 stream_index * 2, stream_index * 2 + 1);
3270 if (setup.transport_option[0] != '\0')
3271 avio_printf(c->pb, ";%s", setup.transport_option);
3272 avio_printf(c->pb, "\r\n");
3275 avio_printf(c->pb, "\r\n");
3280 * find an RTP connection by using the session ID. Check consistency
3283 static HTTPContext *find_rtp_session_with_url(const char *url,
3284 const char *session_id)
3292 rtp_c = find_rtp_session(session_id);
3296 /* find which URL is asked */
3297 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
3301 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3302 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3303 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3304 rtp_c->stream->filename, s);
3305 if(!strncmp(path, buf, sizeof(buf)))
3306 /* XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE
3307 * if nb_streams>1? */
3311 if (len > 0 && path[len - 1] == '/' &&
3312 !strncmp(path, rtp_c->stream->filename, len - 1))
3317 static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
3321 rtp_c = find_rtp_session_with_url(url, h->session_id);
3323 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3327 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3328 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3329 rtp_c->state != HTTPSTATE_READY) {
3330 rtsp_reply_error(c, RTSP_STATUS_STATE);
3334 rtp_c->state = HTTPSTATE_SEND_DATA;
3336 /* now everything is OK, so we can send the connection parameters */
3337 rtsp_reply_header(c, RTSP_STATUS_OK);
3339 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3340 avio_printf(c->pb, "\r\n");
3343 static void rtsp_cmd_interrupt(HTTPContext *c, const char *url,
3344 RTSPMessageHeader *h, int pause_only)
3348 rtp_c = find_rtp_session_with_url(url, h->session_id);
3350 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3355 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3356 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3357 rtsp_reply_error(c, RTSP_STATUS_STATE);
3360 rtp_c->state = HTTPSTATE_READY;
3361 rtp_c->first_pts = AV_NOPTS_VALUE;
3364 /* now everything is OK, so we can send the connection parameters */
3365 rtsp_reply_header(c, RTSP_STATUS_OK);
3367 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3368 avio_printf(c->pb, "\r\n");
3371 close_connection(rtp_c);
3374 /********************************************************************/
3377 static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
3378 FFServerStream *stream,
3379 const char *session_id,
3380 enum RTSPLowerTransport rtp_protocol)
3382 HTTPContext *c = NULL;
3383 const char *proto_str;
3385 /* XXX: should output a warning page when coming
3386 * close to the connection limit */
3387 if (nb_connections >= config.nb_max_connections)
3390 /* add a new connection */
3391 c = av_mallocz(sizeof(HTTPContext));
3396 c->poll_entry = NULL;
3397 c->from_addr = *from_addr;
3398 c->buffer_size = IOBUFFER_INIT_SIZE;
3399 c->buffer = av_malloc(c->buffer_size);
3404 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
3405 c->state = HTTPSTATE_READY;
3406 c->is_packetized = 1;
3407 c->rtp_protocol = rtp_protocol;
3409 /* protocol is shown in statistics */
3410 switch(c->rtp_protocol) {
3411 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3412 proto_str = "MCAST";
3414 case RTSP_LOWER_TRANSPORT_UDP:
3417 case RTSP_LOWER_TRANSPORT_TCP:
3424 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3425 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
3427 current_bandwidth += stream->bandwidth;
3429 c->next = first_http_ctx;
3435 av_freep(&c->buffer);
3442 * add a new RTP stream in an RTP connection (used in RTSP SETUP
3443 * command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
3446 static int rtp_new_av_stream(HTTPContext *c,
3447 int stream_index, struct sockaddr_in *dest_addr,
3448 HTTPContext *rtsp_c)
3450 AVFormatContext *ctx;
3453 URLContext *h = NULL;
3455 int max_packet_size;
3458 /* now we can open the relevant output stream */
3459 ctx = avformat_alloc_context();
3462 ctx->oformat = av_guess_format("rtp", NULL, NULL);
3464 st = avformat_new_stream(ctx, NULL);
3468 st_internal = st->internal;
3470 if (!c->stream->feed ||
3471 c->stream->feed == c->stream)
3472 unlayer_stream(st, c->stream->streams[stream_index]);
3475 c->stream->feed->streams[c->stream->feed_streams[stream_index]]);
3476 av_assert0(st->priv_data == NULL);
3477 av_assert0(st->internal == st_internal);
3479 /* build destination RTP address */
3480 ipaddr = inet_ntoa(dest_addr->sin_addr);
3482 switch(c->rtp_protocol) {
3483 case RTSP_LOWER_TRANSPORT_UDP:
3484 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
3487 /* XXX: also pass as parameter to function ? */
3488 if (c->stream->is_multicast) {
3490 ttl = c->stream->multicast_ttl;
3493 snprintf(ctx->filename, sizeof(ctx->filename),
3494 "rtp://%s:%d?multicast=1&ttl=%d",
3495 ipaddr, ntohs(dest_addr->sin_port), ttl);
3497 snprintf(ctx->filename, sizeof(ctx->filename),
3498 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3501 if (ffurl_open(&h, ctx->filename, AVIO_FLAG_WRITE, NULL, NULL) < 0)
3503 c->rtp_handles[stream_index] = h;
3504 max_packet_size = h->max_packet_size;
3506 case RTSP_LOWER_TRANSPORT_TCP:
3509 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3515 http_log("%s:%d - - \"PLAY %s/streamid=%d %s\"\n",
3516 ipaddr, ntohs(dest_addr->sin_port),
3517 c->stream->filename, stream_index, c->protocol);
3519 /* normally, no packets should be output here, but the packet size may
3521 if (ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0)
3522 /* XXX: close stream */
3525 if (avformat_write_header(ctx, NULL) < 0) {
3533 avio_close_dyn_buf(ctx->pb, &dummy_buf);
3537 c->rtp_ctx[stream_index] = ctx;
3541 /********************************************************************/
3542 /* ffserver initialization */
3544 /* FIXME: This code should use avformat_new_stream() */
3545 static LayeredAVStream *add_av_stream1(FFServerStream *stream,
3546 AVCodecContext *codec, int copy)
3548 LayeredAVStream *fst;
3550 if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
3553 fst = av_mallocz(sizeof(*fst));
3557 fst->codec = avcodec_alloc_context3(codec->codec);
3562 avcodec_copy_context(fst->codec, codec);
3564 /* live streams must use the actual feed's codec since it may be
3565 * updated later to carry extradata needed by them.
3569 //NOTE we previously allocated internal & internal->avctx, these seemed uneeded though
3570 fst->codecpar = avcodec_parameters_alloc();
3571 fst->index = stream->nb_streams;
3572 fst->time_base = codec->time_base;
3573 fst->pts_wrap_bits = 33;
3574 fst->sample_aspect_ratio = codec->sample_aspect_ratio;
3575 stream->streams[stream->nb_streams++] = fst;
3579 /* return the stream number in the feed */
3580 static int add_av_stream(FFServerStream *feed, LayeredAVStream *st)
3582 LayeredAVStream *fst;
3583 AVCodecContext *av, *av1;
3587 for(i=0;i<feed->nb_streams;i++) {
3588 av1 = feed->streams[i]->codec;
3589 if (av1->codec_id == av->codec_id &&
3590 av1->codec_type == av->codec_type &&
3591 av1->bit_rate == av->bit_rate) {
3593 switch(av->codec_type) {
3594 case AVMEDIA_TYPE_AUDIO:
3595 if (av1->channels == av->channels &&
3596 av1->sample_rate == av->sample_rate)
3599 case AVMEDIA_TYPE_VIDEO:
3600 if (av1->width == av->width &&
3601 av1->height == av->height &&
3602 av1->time_base.den == av->time_base.den &&
3603 av1->time_base.num == av->time_base.num &&
3604 av1->gop_size == av->gop_size)
3613 fst = add_av_stream1(feed, av, 0);
3616 if (st->recommended_encoder_configuration)
3617 fst->recommended_encoder_configuration =
3618 av_strdup(st->recommended_encoder_configuration);
3619 return feed->nb_streams - 1;
3622 static void remove_stream(FFServerStream *stream)
3624 FFServerStream **ps;
3625 ps = &config.first_stream;
3634 /* compute the needed AVStream for each file */
3635 static void build_file_streams(void)
3637 FFServerStream *stream;
3638 AVFormatContext *infile;
3641 /* gather all streams */
3642 for(stream = config.first_stream; stream; stream = stream->next) {
3645 if (stream->stream_type != STREAM_TYPE_LIVE || stream->feed)
3648 /* the stream comes from a file */
3649 /* try to open the file */
3653 /* specific case: if transport stream output to RTP,
3654 * we use a raw transport stream reader */
3655 if (stream->fmt && !strcmp(stream->fmt->name, "rtp"))
3656 av_dict_set(&stream->in_opts, "mpeg2ts_compute_pcr", "1", 0);
3658 if (!stream->feed_filename[0]) {
3659 http_log("Unspecified feed file for stream '%s'\n",
3664 http_log("Opening feed file '%s' for stream '%s'\n",
3665 stream->feed_filename, stream->filename);
3667 ret = avformat_open_input(&infile, stream->feed_filename,
3668 stream->ifmt, &stream->in_opts);
3670 http_log("Could not open '%s': %s\n", stream->feed_filename,
3672 /* remove stream (no need to spend more time on it) */
3674 remove_stream(stream);
3676 /* find all the AVStreams inside and reference them in
3678 if (avformat_find_stream_info(infile, NULL) < 0) {
3679 http_log("Could not find codec parameters from '%s'\n",
3680 stream->feed_filename);
3681 avformat_close_input(&infile);
3685 for(i=0;i<infile->nb_streams;i++)
3686 add_av_stream1(stream, infile->streams[i]->codec, 1);
3688 avformat_close_input(&infile);
3694 int check_codec_match(LayeredAVStream *ccf, AVStream *ccs, int stream)
3698 /* FIXME: Missed check on AVCodecContext.flags */
3699 #define CHECK_CODEC(x) (ccf->codecpar->x != ccs->codecpar->x)
3700 if (CHECK_CODEC(codec_id) || CHECK_CODEC(codec_type)) {
3701 http_log("Codecs do not match for stream %d\n", stream);
3703 } else if (CHECK_CODEC(bit_rate)) {
3704 http_log("Codec bitrates do not match for stream %d\n", stream);
3706 } else if (ccf->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
3707 if (av_cmp_q(ccf->time_base, ccs->time_base) ||
3708 CHECK_CODEC(width) || CHECK_CODEC(height)) {
3709 http_log("Codec width, height or framerate do not match for stream %d\n", stream);
3712 } else if (ccf->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
3713 if (CHECK_CODEC(sample_rate) ||
3714 CHECK_CODEC(channels) ||
3715 CHECK_CODEC(frame_size)) {
3716 http_log("Codec sample_rate, channels, frame_size do not match for stream %d\n", stream);
3720 http_log("Unknown codec type for stream %d\n", stream);
3727 /* compute the needed AVStream for each feed */
3728 static int build_feed_streams(void)
3730 FFServerStream *stream, *feed;
3733 /* gather all streams */
3734 for(stream = config.first_stream; stream; stream = stream->next) {
3735 feed = stream->feed;
3739 if (stream->is_feed) {
3740 for(i=0;i<stream->nb_streams;i++)
3741 stream->feed_streams[i] = i;
3744 /* we handle a stream coming from a feed */
3745 for(i=0;i<stream->nb_streams;i++)
3746 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
3749 /* create feed files if needed */
3750 for(feed = config.first_feed; feed; feed = feed->next_feed) {
3752 if (avio_check(feed->feed_filename, AVIO_FLAG_READ) > 0) {
3753 AVFormatContext *s = NULL;
3756 /* See if it matches */
3758 if (avformat_open_input(&s, feed->feed_filename, NULL, NULL) < 0) {
3759 http_log("Deleting feed file '%s' as it appears "
3761 feed->feed_filename);
3765 /* set buffer size */
3766 if (ffio_set_buf_size(s->pb, FFM_PACKET_SIZE) < 0) {
3767 http_log("Failed to set buffer size\n");
3768 avformat_close_input(&s);
3772 /* Now see if it matches */
3773 if (s->nb_streams != feed->nb_streams) {
3774 http_log("Deleting feed file '%s' as stream counts "
3775 "differ (%d != %d)\n",
3776 feed->feed_filename, s->nb_streams, feed->nb_streams);
3781 for(i=0;i<s->nb_streams;i++) {
3783 LayeredAVStream *sf;
3785 sf = feed->streams[i];
3788 if (sf->index != ss->index || sf->id != ss->id) {
3789 http_log("Index & Id do not match for stream %d (%s)\n",
3790 i, feed->feed_filename);
3795 matches = check_codec_match (sf, ss, i);
3802 avformat_close_input(&s);
3805 if (feed->readonly) {
3806 http_log("Unable to delete read-only feed file '%s'\n",
3807 feed->feed_filename);
3810 unlink(feed->feed_filename);
3814 if (avio_check(feed->feed_filename, AVIO_FLAG_WRITE) <= 0) {
3815 AVFormatContext *s = avformat_alloc_context();
3818 http_log("Failed to allocate context\n");
3822 if (feed->readonly) {
3823 http_log("Unable to create feed file '%s' as it is "
3824 "marked readonly\n",
3825 feed->feed_filename);
3826 avformat_free_context(s);
3830 /* only write the header of the ffm file */
3831 if (avio_open(&s->pb, feed->feed_filename, AVIO_FLAG_WRITE) < 0) {
3832 http_log("Could not open output feed file '%s'\n",
3833 feed->feed_filename);
3834 avformat_free_context(s);
3837 s->oformat = feed->fmt;
3838 for (i = 0; i<feed->nb_streams; i++) {
3839 AVStream *st = avformat_new_stream(s, NULL); // FIXME free this
3841 http_log("Failed to allocate stream\n");
3844 unlayer_stream(st, feed->streams[i]);
3846 if (avformat_write_header(s, NULL) < 0) {
3847 http_log("Container doesn't support the required parameters\n");
3848 avio_closep(&s->pb);
3851 avformat_free_context(s);
3854 /* XXX: need better API */
3855 av_freep(&s->priv_data);
3856 avio_closep(&s->pb);
3859 avformat_free_context(s);
3862 /* get feed size and write index */
3863 fd = open(feed->feed_filename, O_RDONLY);
3865 http_log("Could not open output feed file '%s'\n",
3866 feed->feed_filename);
3870 feed->feed_write_index = FFMAX(ffm_read_write_index(fd),
3872 feed->feed_size = lseek(fd, 0, SEEK_END);
3873 /* ensure that we do not wrap before the end of file */
3874 if (feed->feed_max_size && feed->feed_max_size < feed->feed_size)
3875 feed->feed_max_size = feed->feed_size;
3885 /* compute the bandwidth used by each stream */
3886 static void compute_bandwidth(void)
3890 FFServerStream *stream;
3892 for(stream = config.first_stream; stream; stream = stream->next) {
3894 for(i=0;i<stream->nb_streams;i++) {
3895 LayeredAVStream *st = stream->streams[i];
3896 switch(st->codec->codec_type) {
3897 case AVMEDIA_TYPE_AUDIO:
3898 case AVMEDIA_TYPE_VIDEO:
3899 bandwidth += st->codec->bit_rate;
3905 stream->bandwidth = (bandwidth + 999) / 1000;
3909 static void handle_child_exit(int sig)
3915 while ((pid = waitpid(-1, &status, WNOHANG)) > 0) {
3916 FFServerStream *feed;
3918 for (feed = config.first_feed; feed; feed = feed->next) {
3919 if (feed->pid != pid)
3922 uptime = time(0) - feed->pid_start;
3925 "%s: Pid %"PRId64" exited with status %d after %"PRId64" "
3927 feed->filename, (int64_t) pid, status, (int64_t)uptime);
3930 /* Turn off any more restarts */
3931 ffserver_free_child_args(&feed->child_argv);
3935 need_to_start_children = 1;
3938 static void opt_debug(void)
3941 snprintf(config.logfilename, sizeof(config.logfilename), "-");
3944 void show_help_default(const char *opt, const char *arg)
3946 printf("usage: ffserver [options]\n"
3947 "Hyper fast multi format Audio/Video streaming server\n");
3949 show_help_options(options, "Main options:", 0, 0, 0);
3952 static const OptionDef options[] = {
3953 #include "cmdutils_common_opts.h"
3954 { "n", OPT_BOOL, {(void *)&no_launch }, "enable no-launch mode" },
3955 { "d", 0, {(void*)opt_debug}, "enable debug mode" },
3956 { "f", HAS_ARG | OPT_STRING, {(void*)&config.filename }, "use configfile instead of /etc/ffserver.conf", "configfile" },
3960 int main(int argc, char **argv)
3962 struct sigaction sigact = { { 0 } };
3964 int ret = EXIT_FAILURE;
3968 config.filename = av_strdup("/etc/ffserver.conf");
3970 parse_loglevel(argc, argv, options);
3972 avformat_network_init();
3974 show_banner(argc, argv, options);
3976 my_program_name = argv[0];
3978 parse_options(NULL, argc, argv, options, NULL);
3980 unsetenv("http_proxy"); /* Kill the http_proxy */
3982 av_lfg_init(&random_state, av_get_random_seed());
3984 sigact.sa_handler = handle_child_exit;
3985 sigact.sa_flags = SA_NOCLDSTOP | SA_RESTART;
3986 sigaction(SIGCHLD, &sigact, 0);
3988 if ((cfg_parsed = ffserver_parse_ffconfig(config.filename, &config)) < 0) {
3989 fprintf(stderr, "Error reading configuration file '%s': %s\n",
3990 config.filename, av_err2str(cfg_parsed));
3994 /* open log file if needed */
3995 if (config.logfilename[0] != '\0') {
3996 if (!strcmp(config.logfilename, "-"))
3999 logfile = fopen(config.logfilename, "a");
4000 av_log_set_callback(http_av_log);
4003 build_file_streams();
4005 if (build_feed_streams() < 0) {
4006 http_log("Could not setup feed streams\n");
4010 compute_bandwidth();
4013 signal(SIGPIPE, SIG_IGN);
4015 if (http_server() < 0) {
4016 http_log("Could not start server\n");
4023 av_freep (&config.filename);
4024 avformat_network_deinit();