Remove the inclusion of rtsp.h and rtp.h from avformat.h, and
[libav.git] / ffserver.c
CommitLineData
85f07f22
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1/*
2 * Multiple format streaming server
773a21b8 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
85f07f22 4 *
b78e7197
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
773a21b8
FB
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
b78e7197 10 * version 2.1 of the License, or (at your option) any later version.
85f07f22 11 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
85f07f22 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
773a21b8
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
85f07f22 16 *
773a21b8 17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
85f07f22 20 */
364a9607 21
0f4e8165 22#include "config.h"
3cf9ea7f 23#ifndef HAVE_CLOSESOCKET
0f4e8165
RB
24#define closesocket close
25#endif
26#include <string.h>
27#include <stdlib.h>
773a21b8 28#include "avformat.h"
c971ff19
LA
29#include "rtsp.h"
30#include "rtp.h"
773a21b8 31
85f07f22 32#include <stdarg.h>
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33#include <unistd.h>
34#include <fcntl.h>
35#include <sys/ioctl.h>
b0c858d8 36#ifdef HAVE_SYS_POLL_H
85f07f22 37#include <sys/poll.h>
b0c858d8 38#endif
85f07f22
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39#include <errno.h>
40#include <sys/time.h>
4568325a 41#undef time //needed because HAVE_AV_CONFIG_H is defined on top
85f07f22 42#include <time.h>
5eb765ef 43#include <sys/wait.h>
85f07f22 44#include <signal.h>
18b67ae5 45#ifdef HAVE_DLFCN_H
2effd274 46#include <dlfcn.h>
6638d424 47#endif
2effd274 48
0bdacf29 49#include "network.h"
f1cc88a5 50#include "version.h"
2effd274 51#include "ffserver.h"
1df93ae9 52#include "random.h"
f7d78f36 53#include "avstring.h"
4ce5df08 54#include "cmdutils.h"
85f07f22 55
c367d067
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56#undef exit
57
86074ed1
SS
58static const char program_name[] = "FFserver";
59static const int program_birth_year = 2000;
60
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61/* maximum number of simultaneous HTTP connections */
62#define HTTP_MAX_CONNECTIONS 2000
63
64enum HTTPState {
65 HTTPSTATE_WAIT_REQUEST,
66 HTTPSTATE_SEND_HEADER,
67 HTTPSTATE_SEND_DATA_HEADER,
2effd274 68 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
85f07f22 69 HTTPSTATE_SEND_DATA_TRAILER,
115329f1 70 HTTPSTATE_RECEIVE_DATA,
2effd274 71 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
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72 HTTPSTATE_READY,
73
74 RTSPSTATE_WAIT_REQUEST,
75 RTSPSTATE_SEND_REPLY,
bc351386 76 RTSPSTATE_SEND_PACKET,
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77};
78
79const char *http_state[] = {
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80 "HTTP_WAIT_REQUEST",
81 "HTTP_SEND_HEADER",
82
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83 "SEND_DATA_HEADER",
84 "SEND_DATA",
85 "SEND_DATA_TRAILER",
86 "RECEIVE_DATA",
87 "WAIT_FEED",
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88 "READY",
89
90 "RTSP_WAIT_REQUEST",
91 "RTSP_SEND_REPLY",
bc351386 92 "RTSP_SEND_PACKET",
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93};
94
cde25790 95#define IOBUFFER_INIT_SIZE 8192
85f07f22 96
85f07f22 97/* timeouts are in ms */
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98#define HTTP_REQUEST_TIMEOUT (15 * 1000)
99#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
100
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101#define SYNC_TIMEOUT (10 * 1000)
102
5eb765ef 103typedef struct {
0c1a9eda 104 int64_t count1, count2;
c3f58185 105 int64_t time1, time2;
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106} DataRateData;
107
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108/* context associated with one connection */
109typedef struct HTTPContext {
110 enum HTTPState state;
111 int fd; /* socket file descriptor */
112 struct sockaddr_in from_addr; /* origin */
113 struct pollfd *poll_entry; /* used when polling */
c3f58185 114 int64_t timeout;
0c1a9eda 115 uint8_t *buffer_ptr, *buffer_end;
85f07f22 116 int http_error;
edfdd798 117 int post;
85f07f22 118 struct HTTPContext *next;
42a63c6a 119 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
0c1a9eda 120 int64_t data_count;
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121 /* feed input */
122 int feed_fd;
123 /* input format handling */
124 AVFormatContext *fmt_in;
c3f58185 125 int64_t start_time; /* In milliseconds - this wraps fairly often */
0c1a9eda 126 int64_t first_pts; /* initial pts value */
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127 int64_t cur_pts; /* current pts value from the stream in us */
128 int64_t cur_frame_duration; /* duration of the current frame in us */
129 int cur_frame_bytes; /* output frame size, needed to compute
130 the time at which we send each
131 packet */
132 int pts_stream_index; /* stream we choose as clock reference */
133 int64_t cur_clock; /* current clock reference value in us */
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134 /* output format handling */
135 struct FFStream *stream;
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136 /* -1 is invalid stream */
137 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
138 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
139 int switch_pending;
2effd274 140 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
85f07f22 141 int last_packet_sent; /* true if last data packet was sent */
7434ba6d 142 int suppress_log;
5eb765ef 143 DataRateData datarate;
3120d2a2 144 int wmp_client_id;
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145 char protocol[16];
146 char method[16];
147 char url[128];
cde25790 148 int buffer_size;
0c1a9eda 149 uint8_t *buffer;
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150 int is_packetized; /* if true, the stream is packetized */
151 int packet_stream_index; /* current stream for output in state machine */
115329f1 152
2effd274 153 /* RTSP state specific */
0c1a9eda 154 uint8_t *pb_buffer; /* XXX: use that in all the code */
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155 ByteIOContext *pb;
156 int seq; /* RTSP sequence number */
115329f1 157
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158 /* RTP state specific */
159 enum RTSPProtocol rtp_protocol;
160 char session_id[32]; /* session id */
161 AVFormatContext *rtp_ctx[MAX_STREAMS];
e240a0bb 162
bc351386
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163 /* RTP/UDP specific */
164 URLContext *rtp_handles[MAX_STREAMS];
165
166 /* RTP/TCP specific */
167 struct HTTPContext *rtsp_c;
168 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
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169} HTTPContext;
170
a4d70941
PG
171static AVFrame dummy_frame;
172
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173/* each generated stream is described here */
174enum StreamType {
175 STREAM_TYPE_LIVE,
176 STREAM_TYPE_STATUS,
cde25790 177 STREAM_TYPE_REDIRECT,
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178};
179
8256c0a3
PG
180enum IPAddressAction {
181 IP_ALLOW = 1,
182 IP_DENY,
183};
184
185typedef struct IPAddressACL {
186 struct IPAddressACL *next;
187 enum IPAddressAction action;
efa04ce2 188 /* These are in host order */
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189 struct in_addr first;
190 struct in_addr last;
191} IPAddressACL;
192
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193/* description of each stream of the ffserver.conf file */
194typedef struct FFStream {
195 enum StreamType stream_type;
196 char filename[1024]; /* stream filename */
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197 struct FFStream *feed; /* feed we are using (can be null if
198 coming from file) */
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199 AVFormatParameters *ap_in; /* input parameters */
200 AVInputFormat *ifmt; /* if non NULL, force input format */
bd7cf6ad 201 AVOutputFormat *fmt;
8256c0a3 202 IPAddressACL *acl;
85f07f22 203 int nb_streams;
42a63c6a 204 int prebuffer; /* Number of millseconds early to start */
c3f58185 205 int64_t max_time; /* Number of milliseconds to run */
79c4ea3c 206 int send_on_key;
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207 AVStream *streams[MAX_STREAMS];
208 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
209 char feed_filename[1024]; /* file name of the feed storage, or
210 input file name for a stream */
2ac887ba
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211 char author[512];
212 char title[512];
213 char copyright[512];
214 char comment[512];
cde25790 215 pid_t pid; /* Of ffmpeg process */
5eb765ef 216 time_t pid_start; /* Of ffmpeg process */
cde25790 217 char **child_argv;
85f07f22 218 struct FFStream *next;
6edd6884 219 int bandwidth; /* bandwidth, in kbits/s */
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220 /* RTSP options */
221 char *rtsp_option;
829ac53d
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222 /* multicast specific */
223 int is_multicast;
224 struct in_addr multicast_ip;
225 int multicast_port; /* first port used for multicast */
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226 int multicast_ttl;
227 int loop; /* if true, send the stream in loops (only meaningful if file) */
829ac53d 228
85f07f22 229 /* feed specific */
2effd274 230 int feed_opened; /* true if someone is writing to the feed */
85f07f22 231 int is_feed; /* true if it is a feed */
e322ea48 232 int readonly; /* True if writing is prohibited to the file */
a6e14edd 233 int conns_served;
0c1a9eda 234 int64_t bytes_served;
6b0bdc75 235 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
0c1a9eda
ZK
236 int64_t feed_write_index; /* current write position in feed (it wraps round) */
237 int64_t feed_size; /* current size of feed */
85f07f22
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238 struct FFStream *next_feed;
239} FFStream;
240
241typedef struct FeedData {
242 long long data_count;
243 float avg_frame_size; /* frame size averraged over last frames with exponential mean */
244} FeedData;
245
18405874
AB
246static struct sockaddr_in my_http_addr;
247static struct sockaddr_in my_rtsp_addr;
2effd274 248
33f5e2ec
AB
249static char logfilename[1024];
250static HTTPContext *first_http_ctx;
251static FFStream *first_feed; /* contains only feeds */
252static FFStream *first_stream; /* contains all streams, including feeds */
85f07f22 253
2effd274
FB
254static void new_connection(int server_fd, int is_rtsp);
255static void close_connection(HTTPContext *c);
256
257/* HTTP handling */
258static int handle_connection(HTTPContext *c);
85f07f22 259static int http_parse_request(HTTPContext *c);
5eb765ef 260static int http_send_data(HTTPContext *c);
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FB
261static void compute_stats(HTTPContext *c);
262static int open_input_stream(HTTPContext *c, const char *info);
263static int http_start_receive_data(HTTPContext *c);
264static int http_receive_data(HTTPContext *c);
2effd274
FB
265
266/* RTSP handling */
267static int rtsp_parse_request(HTTPContext *c);
268static void rtsp_cmd_describe(HTTPContext *c, const char *url);
0df65975 269static void rtsp_cmd_options(HTTPContext *c, const char *url);
2effd274
FB
270static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPHeader *h);
271static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h);
272static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h);
273static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h);
274
829ac53d 275/* SDP handling */
115329f1 276static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
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277 struct in_addr my_ip);
278
2effd274 279/* RTP handling */
115329f1 280static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
bc351386
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281 FFStream *stream, const char *session_id,
282 enum RTSPProtocol rtp_protocol);
115329f1 283static int rtp_new_av_stream(HTTPContext *c,
bc351386
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284 int stream_index, struct sockaddr_in *dest_addr,
285 HTTPContext *rtsp_c);
85f07f22 286
cde25790 287static const char *my_program_name;
d6562d2c 288static const char *my_program_dir;
cde25790 289
2ac887ba 290static int ffserver_debug;
2effd274 291static int ffserver_daemon;
2ac887ba 292static int no_launch;
5eb765ef 293static int need_to_start_children;
2ac887ba 294
33f5e2ec
AB
295static int nb_max_connections;
296static int nb_connections;
85f07f22 297
33f5e2ec
AB
298static int max_bandwidth;
299static int current_bandwidth;
42a63c6a 300
c3f58185 301static int64_t cur_time; // Making this global saves on passing it around everywhere
5eb765ef 302
1df93ae9
AB
303static AVRandomState random_state;
304
85f07f22
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305static FILE *logfile = NULL;
306
115329f1 307static void __attribute__ ((format (printf, 1, 2))) http_log(const char *fmt, ...)
85f07f22
FB
308{
309 va_list ap;
310 va_start(ap, fmt);
115329f1 311
7434ba6d 312 if (logfile) {
85f07f22 313 vfprintf(logfile, fmt, ap);
7434ba6d
PG
314 fflush(logfile);
315 }
85f07f22
FB
316 va_end(ap);
317}
318
6edd6884 319static char *ctime1(char *buf2)
7434ba6d 320{
7434ba6d 321 time_t ti;
6edd6884 322 char *p;
7434ba6d 323
7434ba6d
PG
324 ti = time(NULL);
325 p = ctime(&ti);
326 strcpy(buf2, p);
327 p = buf2 + strlen(p) - 1;
328 if (*p == '\n')
329 *p = '\0';
6edd6884
FB
330 return buf2;
331}
332
333static void log_connection(HTTPContext *c)
334{
335 char buf2[32];
336
115329f1 337 if (c->suppress_log)
6edd6884
FB
338 return;
339
115329f1
DB
340 http_log("%s - - [%s] \"%s %s %s\" %d %"PRId64"\n",
341 inet_ntoa(c->from_addr.sin_addr),
342 ctime1(buf2), c->method, c->url,
6edd6884 343 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
cde25790
PG
344}
345
0c1a9eda 346static void update_datarate(DataRateData *drd, int64_t count)
5eb765ef
PG
347{
348 if (!drd->time1 && !drd->count1) {
349 drd->time1 = drd->time2 = cur_time;
350 drd->count1 = drd->count2 = count;
eeffbdea 351 } else if (cur_time - drd->time2 > 5000) {
33a4ecbe
AB
352 drd->time1 = drd->time2;
353 drd->count1 = drd->count2;
354 drd->time2 = cur_time;
355 drd->count2 = count;
5eb765ef
PG
356 }
357}
358
359/* In bytes per second */
0c1a9eda 360static int compute_datarate(DataRateData *drd, int64_t count)
5eb765ef
PG
361{
362 if (cur_time == drd->time1)
363 return 0;
115329f1 364
5eb765ef
PG
365 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
366}
367
a782f209 368
cde25790
PG
369static void start_children(FFStream *feed)
370{
2ac887ba
PG
371 if (no_launch)
372 return;
373
cde25790 374 for (; feed; feed = feed->next) {
5eb765ef
PG
375 if (feed->child_argv && !feed->pid) {
376 feed->pid_start = time(0);
377
cde25790
PG
378 feed->pid = fork();
379
380 if (feed->pid < 0) {
381 fprintf(stderr, "Unable to create children\n");
382 exit(1);
383 }
384 if (!feed->pid) {
385 /* In child */
386 char pathname[1024];
387 char *slash;
388 int i;
389
611c5741 390 for (i = 3; i < 256; i++)
5eb765ef 391 close(i);
cde25790 392
5eb765ef 393 if (!ffserver_debug) {
2ac887ba
PG
394 i = open("/dev/null", O_RDWR);
395 if (i)
396 dup2(i, 0);
397 dup2(i, 1);
398 dup2(i, 2);
5eb765ef
PG
399 if (i)
400 close(i);
2ac887ba 401 }
cde25790 402
f7d78f36 403 av_strlcpy(pathname, my_program_name, sizeof(pathname));
cde25790
PG
404
405 slash = strrchr(pathname, '/');
611c5741 406 if (!slash)
cde25790 407 slash = pathname;
611c5741 408 else
cde25790 409 slash++;
cde25790
PG
410 strcpy(slash, "ffmpeg");
411
d6562d2c
PG
412 /* This is needed to make relative pathnames work */
413 chdir(my_program_dir);
414
a4d70941
PG
415 signal(SIGPIPE, SIG_DFL);
416
cde25790
PG
417 execvp(pathname, feed->child_argv);
418
419 _exit(1);
420 }
421 }
422 }
7434ba6d
PG
423}
424
2effd274
FB
425/* open a listening socket */
426static int socket_open_listen(struct sockaddr_in *my_addr)
85f07f22 427{
2effd274 428 int server_fd, tmp;
85f07f22
FB
429
430 server_fd = socket(AF_INET,SOCK_STREAM,0);
431 if (server_fd < 0) {
432 perror ("socket");
433 return -1;
434 }
115329f1 435
85f07f22
FB
436 tmp = 1;
437 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
438
2effd274 439 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
b17d099d
PG
440 char bindmsg[32];
441 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
442 perror (bindmsg);
d96633bb 443 closesocket(server_fd);
85f07f22
FB
444 return -1;
445 }
115329f1 446
85f07f22
FB
447 if (listen (server_fd, 5) < 0) {
448 perror ("listen");
d96633bb 449 closesocket(server_fd);
85f07f22
FB
450 return -1;
451 }
ba472aaf 452 ff_socket_nonblock(server_fd, 1);
2effd274
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453
454 return server_fd;
455}
456
6edd6884
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457/* start all multicast streams */
458static void start_multicast(void)
459{
460 FFStream *stream;
461 char session_id[32];
462 HTTPContext *rtp_c;
463 struct sockaddr_in dest_addr;
464 int default_port, stream_index;
465
466 default_port = 6000;
467 for(stream = first_stream; stream != NULL; stream = stream->next) {
468 if (stream->is_multicast) {
469 /* open the RTP connection */
1df93ae9
AB
470 snprintf(session_id, sizeof(session_id), "%08x%08x",
471 av_random(&random_state), av_random(&random_state));
6edd6884
FB
472
473 /* choose a port if none given */
474 if (stream->multicast_port == 0) {
475 stream->multicast_port = default_port;
476 default_port += 100;
477 }
478
479 dest_addr.sin_family = AF_INET;
480 dest_addr.sin_addr = stream->multicast_ip;
481 dest_addr.sin_port = htons(stream->multicast_port);
482
115329f1 483 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
bc351386 484 RTSP_PROTOCOL_RTP_UDP_MULTICAST);
611c5741 485 if (!rtp_c)
6edd6884 486 continue;
611c5741 487
6edd6884 488 if (open_input_stream(rtp_c, "") < 0) {
115329f1 489 fprintf(stderr, "Could not open input stream for stream '%s'\n",
6edd6884
FB
490 stream->filename);
491 continue;
492 }
493
6edd6884 494 /* open each RTP stream */
115329f1 495 for(stream_index = 0; stream_index < stream->nb_streams;
6edd6884 496 stream_index++) {
115329f1 497 dest_addr.sin_port = htons(stream->multicast_port +
6edd6884 498 2 * stream_index);
bc351386 499 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
115329f1 500 fprintf(stderr, "Could not open output stream '%s/streamid=%d'\n",
0fa45e19
FB
501 stream->filename, stream_index);
502 exit(1);
6edd6884
FB
503 }
504 }
505
506 /* change state to send data */
507 rtp_c->state = HTTPSTATE_SEND_DATA;
508 }
509 }
510}
2effd274
FB
511
512/* main loop of the http server */
513static int http_server(void)
514{
515 int server_fd, ret, rtsp_server_fd, delay, delay1;
516 struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 2], *poll_entry;
517 HTTPContext *c, *c_next;
518
519 server_fd = socket_open_listen(&my_http_addr);
520 if (server_fd < 0)
521 return -1;
85f07f22 522
2effd274
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523 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
524 if (rtsp_server_fd < 0)
525 return -1;
115329f1 526
85f07f22
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527 http_log("ffserver started.\n");
528
cde25790
PG
529 start_children(first_feed);
530
85f07f22
FB
531 first_http_ctx = NULL;
532 nb_connections = 0;
6edd6884
FB
533
534 start_multicast();
535
85f07f22
FB
536 for(;;) {
537 poll_entry = poll_table;
538 poll_entry->fd = server_fd;
539 poll_entry->events = POLLIN;
540 poll_entry++;
541
2effd274
FB
542 poll_entry->fd = rtsp_server_fd;
543 poll_entry->events = POLLIN;
544 poll_entry++;
545
85f07f22
FB
546 /* wait for events on each HTTP handle */
547 c = first_http_ctx;
2effd274 548 delay = 1000;
85f07f22
FB
549 while (c != NULL) {
550 int fd;
551 fd = c->fd;
552 switch(c->state) {
2effd274
FB
553 case HTTPSTATE_SEND_HEADER:
554 case RTSPSTATE_SEND_REPLY:
bc351386 555 case RTSPSTATE_SEND_PACKET:
85f07f22
FB
556 c->poll_entry = poll_entry;
557 poll_entry->fd = fd;
2effd274 558 poll_entry->events = POLLOUT;
85f07f22
FB
559 poll_entry++;
560 break;
85f07f22
FB
561 case HTTPSTATE_SEND_DATA_HEADER:
562 case HTTPSTATE_SEND_DATA:
563 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
564 if (!c->is_packetized) {
565 /* for TCP, we output as much as we can (may need to put a limit) */
566 c->poll_entry = poll_entry;
567 poll_entry->fd = fd;
568 poll_entry->events = POLLOUT;
569 poll_entry++;
570 } else {
e240a0bb
FB
571 /* when ffserver is doing the timing, we work by
572 looking at which packet need to be sent every
573 10 ms */
574 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
575 if (delay1 < delay)
576 delay = delay1;
2effd274 577 }
85f07f22 578 break;
2effd274 579 case HTTPSTATE_WAIT_REQUEST:
85f07f22 580 case HTTPSTATE_RECEIVE_DATA:
85f07f22 581 case HTTPSTATE_WAIT_FEED:
2effd274 582 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
583 /* need to catch errors */
584 c->poll_entry = poll_entry;
585 poll_entry->fd = fd;
a6e14edd 586 poll_entry->events = POLLIN;/* Maybe this will work */
85f07f22
FB
587 poll_entry++;
588 break;
589 default:
590 c->poll_entry = NULL;
591 break;
592 }
593 c = c->next;
594 }
595
596 /* wait for an event on one connection. We poll at least every
597 second to handle timeouts */
598 do {
2effd274 599 ret = poll(poll_table, poll_entry - poll_table, delay);
8da4034f
AB
600 if (ret < 0 && ff_neterrno() != FF_NETERROR(EAGAIN) &&
601 ff_neterrno() != FF_NETERROR(EINTR))
53e2f9ca 602 return -1;
e8d658df 603 } while (ret < 0);
115329f1 604
c3f58185 605 cur_time = av_gettime() / 1000;
85f07f22 606
5eb765ef
PG
607 if (need_to_start_children) {
608 need_to_start_children = 0;
609 start_children(first_feed);
610 }
611
85f07f22 612 /* now handle the events */
2effd274
FB
613 for(c = first_http_ctx; c != NULL; c = c_next) {
614 c_next = c->next;
615 if (handle_connection(c) < 0) {
85f07f22 616 /* close and free the connection */
7434ba6d 617 log_connection(c);
2effd274 618 close_connection(c);
85f07f22
FB
619 }
620 }
621
85f07f22 622 poll_entry = poll_table;
2effd274 623 /* new HTTP connection request ? */
611c5741 624 if (poll_entry->revents & POLLIN)
2effd274 625 new_connection(server_fd, 0);
85f07f22 626 poll_entry++;
2effd274 627 /* new RTSP connection request ? */
611c5741 628 if (poll_entry->revents & POLLIN)
2effd274 629 new_connection(rtsp_server_fd, 1);
85f07f22
FB
630 }
631}
632
2effd274
FB
633/* start waiting for a new HTTP/RTSP request */
634static void start_wait_request(HTTPContext *c, int is_rtsp)
85f07f22 635{
2effd274
FB
636 c->buffer_ptr = c->buffer;
637 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
638
639 if (is_rtsp) {
640 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
641 c->state = RTSPSTATE_WAIT_REQUEST;
642 } else {
643 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
644 c->state = HTTPSTATE_WAIT_REQUEST;
645 }
646}
647
648static void new_connection(int server_fd, int is_rtsp)
649{
650 struct sockaddr_in from_addr;
651 int fd, len;
652 HTTPContext *c = NULL;
653
654 len = sizeof(from_addr);
115329f1 655 fd = accept(server_fd, (struct sockaddr *)&from_addr,
2effd274
FB
656 &len);
657 if (fd < 0)
658 return;
ba472aaf 659 ff_socket_nonblock(fd, 1);
2effd274
FB
660
661 /* XXX: should output a warning page when coming
662 close to the connection limit */
663 if (nb_connections >= nb_max_connections)
664 goto fail;
115329f1 665
2effd274
FB
666 /* add a new connection */
667 c = av_mallocz(sizeof(HTTPContext));
668 if (!c)
669 goto fail;
115329f1 670
2effd274
FB
671 c->fd = fd;
672 c->poll_entry = NULL;
673 c->from_addr = from_addr;
674 c->buffer_size = IOBUFFER_INIT_SIZE;
675 c->buffer = av_malloc(c->buffer_size);
676 if (!c->buffer)
677 goto fail;
8bc80f8b
PG
678
679 c->next = first_http_ctx;
680 first_http_ctx = c;
2effd274 681 nb_connections++;
115329f1 682
2effd274
FB
683 start_wait_request(c, is_rtsp);
684
685 return;
686
687 fail:
688 if (c) {
689 av_free(c->buffer);
690 av_free(c);
691 }
d96633bb 692 closesocket(fd);
2effd274
FB
693}
694
695static void close_connection(HTTPContext *c)
696{
697 HTTPContext **cp, *c1;
698 int i, nb_streams;
699 AVFormatContext *ctx;
700 URLContext *h;
701 AVStream *st;
702
703 /* remove connection from list */
704 cp = &first_http_ctx;
705 while ((*cp) != NULL) {
706 c1 = *cp;
611c5741 707 if (c1 == c)
2effd274 708 *cp = c->next;
611c5741 709 else
2effd274 710 cp = &c1->next;
2effd274
FB
711 }
712
bc351386
FB
713 /* remove references, if any (XXX: do it faster) */
714 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
715 if (c1->rtsp_c == c)
716 c1->rtsp_c = NULL;
717 }
718
2effd274
FB
719 /* remove connection associated resources */
720 if (c->fd >= 0)
d96633bb 721 closesocket(c->fd);
2effd274
FB
722 if (c->fmt_in) {
723 /* close each frame parser */
724 for(i=0;i<c->fmt_in->nb_streams;i++) {
725 st = c->fmt_in->streams[i];
611c5741 726 if (st->codec->codec)
01f4895c 727 avcodec_close(st->codec);
2effd274
FB
728 }
729 av_close_input_file(c->fmt_in);
730 }
731
732 /* free RTP output streams if any */
733 nb_streams = 0;
115329f1 734 if (c->stream)
2effd274 735 nb_streams = c->stream->nb_streams;
115329f1 736
2effd274
FB
737 for(i=0;i<nb_streams;i++) {
738 ctx = c->rtp_ctx[i];
739 if (ctx) {
740 av_write_trailer(ctx);
741 av_free(ctx);
742 }
743 h = c->rtp_handles[i];
611c5741 744 if (h)
2effd274 745 url_close(h);
2effd274 746 }
115329f1 747
b88ba823
MH
748 ctx = &c->fmt_ctx;
749
87638494 750 if (!c->last_packet_sent) {
87638494
PG
751 if (ctx->oformat) {
752 /* prepare header */
753 if (url_open_dyn_buf(&ctx->pb) >= 0) {
754 av_write_trailer(ctx);
bc351386 755 url_close_dyn_buf(&ctx->pb, &c->pb_buffer);
87638494
PG
756 }
757 }
758 }
759
115329f1 760 for(i=0; i<ctx->nb_streams; i++)
0bd53967 761 av_free(ctx->streams[i]);
f0ef6240 762
edfdd798 763 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
6edd6884 764 current_bandwidth -= c->stream->bandwidth;
5400e092
AB
765
766 /* signal that there is no feed if we are the feeder socket */
767 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
768 c->stream->feed_opened = 0;
769 close(c->feed_fd);
770 }
771
2effd274 772 av_freep(&c->pb_buffer);
bc351386 773 av_freep(&c->packet_buffer);
2effd274
FB
774 av_free(c->buffer);
775 av_free(c);
776 nb_connections--;
777}
778
779static int handle_connection(HTTPContext *c)
780{
781 int len, ret;
115329f1 782
85f07f22
FB
783 switch(c->state) {
784 case HTTPSTATE_WAIT_REQUEST:
2effd274 785 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
786 /* timeout ? */
787 if ((c->timeout - cur_time) < 0)
788 return -1;
789 if (c->poll_entry->revents & (POLLERR | POLLHUP))
790 return -1;
791
792 /* no need to read if no events */
793 if (!(c->poll_entry->revents & POLLIN))
794 return 0;
795 /* read the data */
1bc1cfdd 796 read_loop:
c60202df 797 len = recv(c->fd, c->buffer_ptr, 1, 0);
85f07f22 798 if (len < 0) {
8da4034f
AB
799 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
800 ff_neterrno() != FF_NETERROR(EINTR))
85f07f22
FB
801 return -1;
802 } else if (len == 0) {
803 return -1;
804 } else {
94d9ad5f 805 /* search for end of request. */
0c1a9eda 806 uint8_t *ptr;
85f07f22
FB
807 c->buffer_ptr += len;
808 ptr = c->buffer_ptr;
809 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
810 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
811 /* request found : parse it and reply */
2effd274
FB
812 if (c->state == HTTPSTATE_WAIT_REQUEST) {
813 ret = http_parse_request(c);
814 } else {
815 ret = rtsp_parse_request(c);
816 }
817 if (ret < 0)
85f07f22
FB
818 return -1;
819 } else if (ptr >= c->buffer_end) {
820 /* request too long: cannot do anything */
821 return -1;
1bc1cfdd 822 } else goto read_loop;
85f07f22
FB
823 }
824 break;
825
826 case HTTPSTATE_SEND_HEADER:
827 if (c->poll_entry->revents & (POLLERR | POLLHUP))
828 return -1;
829
2effd274 830 /* no need to write if no events */
85f07f22
FB
831 if (!(c->poll_entry->revents & POLLOUT))
832 return 0;
c60202df 833 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
85f07f22 834 if (len < 0) {
8da4034f
AB
835 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
836 ff_neterrno() != FF_NETERROR(EINTR)) {
85f07f22 837 /* error : close connection */
2effd274 838 av_freep(&c->pb_buffer);
85f07f22
FB
839 return -1;
840 }
841 } else {
842 c->buffer_ptr += len;
2e04edb3
PG
843 if (c->stream)
844 c->stream->bytes_served += len;
a6e14edd 845 c->data_count += len;
85f07f22 846 if (c->buffer_ptr >= c->buffer_end) {
2effd274 847 av_freep(&c->pb_buffer);
85f07f22 848 /* if error, exit */
611c5741 849 if (c->http_error)
85f07f22 850 return -1;
2effd274 851 /* all the buffer was sent : synchronize to the incoming stream */
85f07f22
FB
852 c->state = HTTPSTATE_SEND_DATA_HEADER;
853 c->buffer_ptr = c->buffer_end = c->buffer;
854 }
855 }
856 break;
857
858 case HTTPSTATE_SEND_DATA:
859 case HTTPSTATE_SEND_DATA_HEADER:
860 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
861 /* for packetized output, we consider we can always write (the
862 input streams sets the speed). It may be better to verify
863 that we do not rely too much on the kernel queues */
864 if (!c->is_packetized) {
865 if (c->poll_entry->revents & (POLLERR | POLLHUP))
866 return -1;
115329f1 867
2effd274
FB
868 /* no need to read if no events */
869 if (!(c->poll_entry->revents & POLLOUT))
870 return 0;
871 }
5eb765ef 872 if (http_send_data(c) < 0)
85f07f22 873 return -1;
638831aa
AB
874 /* close connection if trailer sent */
875 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
876 return -1;
85f07f22
FB
877 break;
878 case HTTPSTATE_RECEIVE_DATA:
879 /* no need to read if no events */
880 if (c->poll_entry->revents & (POLLERR | POLLHUP))
881 return -1;
882 if (!(c->poll_entry->revents & POLLIN))
883 return 0;
884 if (http_receive_data(c) < 0)
885 return -1;
886 break;
887 case HTTPSTATE_WAIT_FEED:
888 /* no need to read if no events */
a6e14edd 889 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
85f07f22
FB
890 return -1;
891
892 /* nothing to do, we'll be waken up by incoming feed packets */
893 break;
2effd274 894
2effd274
FB
895 case RTSPSTATE_SEND_REPLY:
896 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
897 av_freep(&c->pb_buffer);
898 return -1;
899 }
900 /* no need to write if no events */
901 if (!(c->poll_entry->revents & POLLOUT))
902 return 0;
c60202df 903 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2effd274 904 if (len < 0) {
8da4034f
AB
905 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
906 ff_neterrno() != FF_NETERROR(EINTR)) {
2effd274
FB
907 /* error : close connection */
908 av_freep(&c->pb_buffer);
909 return -1;
910 }
911 } else {
912 c->buffer_ptr += len;
913 c->data_count += len;
914 if (c->buffer_ptr >= c->buffer_end) {
915 /* all the buffer was sent : wait for a new request */
916 av_freep(&c->pb_buffer);
917 start_wait_request(c, 1);
918 }
919 }
920 break;
bc351386
FB
921 case RTSPSTATE_SEND_PACKET:
922 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
923 av_freep(&c->packet_buffer);
924 return -1;
925 }
926 /* no need to write if no events */
927 if (!(c->poll_entry->revents & POLLOUT))
928 return 0;
c60202df
AB
929 len = send(c->fd, c->packet_buffer_ptr,
930 c->packet_buffer_end - c->packet_buffer_ptr, 0);
bc351386 931 if (len < 0) {
8da4034f
AB
932 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
933 ff_neterrno() != FF_NETERROR(EINTR)) {
bc351386
FB
934 /* error : close connection */
935 av_freep(&c->packet_buffer);
936 return -1;
937 }
938 } else {
939 c->packet_buffer_ptr += len;
940 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
941 /* all the buffer was sent : wait for a new request */
942 av_freep(&c->packet_buffer);
943 c->state = RTSPSTATE_WAIT_REQUEST;
944 }
945 }
946 break;
2effd274
FB
947 case HTTPSTATE_READY:
948 /* nothing to do */
949 break;
85f07f22
FB
950 default:
951 return -1;
952 }
953 return 0;
954}
955
3120d2a2
PG
956static int extract_rates(char *rates, int ratelen, const char *request)
957{
958 const char *p;
959
960 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
961 if (strncasecmp(p, "Pragma:", 7) == 0) {
962 const char *q = p + 7;
963
964 while (*q && *q != '\n' && isspace(*q))
965 q++;
966
967 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
968 int stream_no;
969 int rate_no;
970
971 q += 20;
972
cde25790 973 memset(rates, 0xff, ratelen);
3120d2a2
PG
974
975 while (1) {
976 while (*q && *q != '\n' && *q != ':')
977 q++;
978
611c5741 979 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
3120d2a2 980 break;
611c5741 981
3120d2a2 982 stream_no--;
611c5741 983 if (stream_no < ratelen && stream_no >= 0)
3120d2a2 984 rates[stream_no] = rate_no;
3120d2a2
PG
985
986 while (*q && *q != '\n' && !isspace(*q))
987 q++;
988 }
989
990 return 1;
991 }
992 }
993 p = strchr(p, '\n');
994 if (!p)
995 break;
996
997 p++;
998 }
999
1000 return 0;
1001}
1002
cde25790 1003static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
3120d2a2
PG
1004{
1005 int i;
cde25790
PG
1006 int best_bitrate = 100000000;
1007 int best = -1;
1008
1009 for (i = 0; i < feed->nb_streams; i++) {
01f4895c 1010 AVCodecContext *feed_codec = feed->streams[i]->codec;
cde25790
PG
1011
1012 if (feed_codec->codec_id != codec->codec_id ||
1013 feed_codec->sample_rate != codec->sample_rate ||
1014 feed_codec->width != codec->width ||
611c5741 1015 feed_codec->height != codec->height)
cde25790 1016 continue;
cde25790
PG
1017
1018 /* Potential stream */
1019
115329f1 1020 /* We want the fastest stream less than bit_rate, or the slowest
cde25790
PG
1021 * faster than bit_rate
1022 */
1023
1024 if (feed_codec->bit_rate <= bit_rate) {
1025 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1026 best_bitrate = feed_codec->bit_rate;
1027 best = i;
1028 }
1029 } else {
1030 if (feed_codec->bit_rate < best_bitrate) {
1031 best_bitrate = feed_codec->bit_rate;
1032 best = i;
1033 }
1034 }
1035 }
1036
1037 return best;
1038}
1039
1040static int modify_current_stream(HTTPContext *c, char *rates)
1041{
1042 int i;
1043 FFStream *req = c->stream;
1044 int action_required = 0;
3120d2a2 1045
001bcd29
PG
1046 /* Not much we can do for a feed */
1047 if (!req->feed)
1048 return 0;
1049
3120d2a2 1050 for (i = 0; i < req->nb_streams; i++) {
01f4895c 1051 AVCodecContext *codec = req->streams[i]->codec;
3120d2a2 1052
3120d2a2
PG
1053 switch(rates[i]) {
1054 case 0:
cde25790 1055 c->switch_feed_streams[i] = req->feed_streams[i];
3120d2a2
PG
1056 break;
1057 case 1:
cde25790 1058 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
3120d2a2
PG
1059 break;
1060 case 2:
cde25790
PG
1061 /* Wants off or slow */
1062 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1063#ifdef WANTS_OFF
1064 /* This doesn't work well when it turns off the only stream! */
1065 c->switch_feed_streams[i] = -2;
1066 c->feed_streams[i] = -2;
1067#endif
3120d2a2
PG
1068 break;
1069 }
3120d2a2 1070
cde25790
PG
1071 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1072 action_required = 1;
1073 }
3120d2a2 1074
cde25790
PG
1075 return action_required;
1076}
3120d2a2 1077
3120d2a2 1078
cde25790
PG
1079static void do_switch_stream(HTTPContext *c, int i)
1080{
1081 if (c->switch_feed_streams[i] >= 0) {
115329f1 1082#ifdef PHILIP
cde25790
PG
1083 c->feed_streams[i] = c->switch_feed_streams[i];
1084#endif
3120d2a2 1085
cde25790 1086 /* Now update the stream */
3120d2a2 1087 }
cde25790 1088 c->switch_feed_streams[i] = -1;
3120d2a2 1089}
7434ba6d 1090
2effd274
FB
1091/* XXX: factorize in utils.c ? */
1092/* XXX: take care with different space meaning */
1093static void skip_spaces(const char **pp)
1094{
1095 const char *p;
1096 p = *pp;
1097 while (*p == ' ' || *p == '\t')
1098 p++;
1099 *pp = p;
1100}
1101
1102static void get_word(char *buf, int buf_size, const char **pp)
1103{
1104 const char *p;
1105 char *q;
1106
1107 p = *pp;
1108 skip_spaces(&p);
1109 q = buf;
1110 while (!isspace(*p) && *p != '\0') {
1111 if ((q - buf) < buf_size - 1)
1112 *q++ = *p;
1113 p++;
1114 }
1115 if (buf_size > 0)
1116 *q = '\0';
1117 *pp = p;
1118}
1119
8256c0a3
PG
1120static int validate_acl(FFStream *stream, HTTPContext *c)
1121{
1122 enum IPAddressAction last_action = IP_DENY;
1123 IPAddressACL *acl;
1124 struct in_addr *src = &c->from_addr.sin_addr;
2bd8416e 1125 unsigned long src_addr = src->s_addr;
8256c0a3
PG
1126
1127 for (acl = stream->acl; acl; acl = acl->next) {
611c5741 1128 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
8256c0a3 1129 return (acl->action == IP_ALLOW) ? 1 : 0;
8256c0a3
PG
1130 last_action = acl->action;
1131 }
1132
1133 /* Nothing matched, so return not the last action */
1134 return (last_action == IP_DENY) ? 1 : 0;
1135}
1136
829ac53d
FB
1137/* compute the real filename of a file by matching it without its
1138 extensions to all the stream filenames */
1139static void compute_real_filename(char *filename, int max_size)
1140{
1141 char file1[1024];
1142 char file2[1024];
1143 char *p;
1144 FFStream *stream;
1145
1146 /* compute filename by matching without the file extensions */
f7d78f36 1147 av_strlcpy(file1, filename, sizeof(file1));
829ac53d
FB
1148 p = strrchr(file1, '.');
1149 if (p)
1150 *p = '\0';
1151 for(stream = first_stream; stream != NULL; stream = stream->next) {
f7d78f36 1152 av_strlcpy(file2, stream->filename, sizeof(file2));
829ac53d
FB
1153 p = strrchr(file2, '.');
1154 if (p)
1155 *p = '\0';
1156 if (!strcmp(file1, file2)) {
f7d78f36 1157 av_strlcpy(filename, stream->filename, max_size);
829ac53d
FB
1158 break;
1159 }
1160 }
1161}
1162
1163enum RedirType {
1164 REDIR_NONE,
1165 REDIR_ASX,
1166 REDIR_RAM,
1167 REDIR_ASF,
1168 REDIR_RTSP,
1169 REDIR_SDP,
1170};
1171
85f07f22
FB
1172/* parse http request and prepare header */
1173static int http_parse_request(HTTPContext *c)
1174{
1175 char *p;
829ac53d 1176 enum RedirType redir_type;
85f07f22 1177 char cmd[32];
bae79c04 1178 char info[1024], filename[1024];
85f07f22
FB
1179 char url[1024], *q;
1180 char protocol[32];
1181 char msg[1024];
1182 const char *mime_type;
1183 FFStream *stream;
42a63c6a 1184 int i;
3120d2a2 1185 char ratebuf[32];
cde25790 1186 char *useragent = 0;
85f07f22
FB
1187
1188 p = c->buffer;
2effd274 1189 get_word(cmd, sizeof(cmd), (const char **)&p);
f7d78f36 1190 av_strlcpy(c->method, cmd, sizeof(c->method));
7434ba6d 1191
85f07f22 1192 if (!strcmp(cmd, "GET"))
edfdd798 1193 c->post = 0;
85f07f22 1194 else if (!strcmp(cmd, "POST"))
edfdd798 1195 c->post = 1;
85f07f22
FB
1196 else
1197 return -1;
1198
2effd274 1199 get_word(url, sizeof(url), (const char **)&p);
f7d78f36 1200 av_strlcpy(c->url, url, sizeof(c->url));
7434ba6d 1201
2effd274 1202 get_word(protocol, sizeof(protocol), (const char **)&p);
85f07f22
FB
1203 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1204 return -1;
7434ba6d 1205
f7d78f36 1206 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
90f9c440
AB
1207
1208 if (ffserver_debug)
bb270c08 1209 http_log("New connection: %s %s\n", cmd, url);
115329f1 1210
85f07f22 1211 /* find the filename and the optional info string in the request */
bae79c04 1212 p = strchr(url, '?');
85f07f22 1213 if (p) {
f7d78f36 1214 av_strlcpy(info, p, sizeof(info));
85f07f22 1215 *p = '\0';
611c5741 1216 } else
85f07f22 1217 info[0] = '\0';
85f07f22 1218
f7d78f36 1219 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
bae79c04 1220
cde25790
PG
1221 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1222 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1223 useragent = p + 11;
1224 if (*useragent && *useragent != '\n' && isspace(*useragent))
1225 useragent++;
1226 break;
1227 }
1228 p = strchr(p, '\n');
1229 if (!p)
1230 break;
1231
1232 p++;
1233 }
1234
829ac53d
FB
1235 redir_type = REDIR_NONE;
1236 if (match_ext(filename, "asx")) {
1237 redir_type = REDIR_ASX;
7434ba6d 1238 filename[strlen(filename)-1] = 'f';
c2ce254c 1239 } else if (match_ext(filename, "asf") &&
cde25790
PG
1240 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1241 /* if this isn't WMP or lookalike, return the redirector file */
829ac53d
FB
1242 redir_type = REDIR_ASF;
1243 } else if (match_ext(filename, "rpm,ram")) {
1244 redir_type = REDIR_RAM;
42a63c6a 1245 strcpy(filename + strlen(filename)-2, "m");
829ac53d
FB
1246 } else if (match_ext(filename, "rtsp")) {
1247 redir_type = REDIR_RTSP;
bae79c04 1248 compute_real_filename(filename, sizeof(filename) - 1);
829ac53d
FB
1249 } else if (match_ext(filename, "sdp")) {
1250 redir_type = REDIR_SDP;
bae79c04 1251 compute_real_filename(filename, sizeof(filename) - 1);
42a63c6a 1252 }
115329f1 1253
bae79c04
AB
1254 // "redirect" / request to index.html
1255 if (!strlen(filename))
f7d78f36 1256 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
bae79c04 1257
85f07f22
FB
1258 stream = first_stream;
1259 while (stream != NULL) {
8256c0a3 1260 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
85f07f22
FB
1261 break;
1262 stream = stream->next;
1263 }
1264 if (stream == NULL) {
d445a7e9 1265 snprintf(msg, sizeof(msg), "File '%s' not found", url);
85f07f22
FB
1266 goto send_error;
1267 }
42a63c6a 1268
cde25790
PG
1269 c->stream = stream;
1270 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1271 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1272
1273 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1274 c->http_error = 301;
1275 q = c->buffer;
d445a7e9
PG
1276 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 301 Moved\r\n");
1277 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Location: %s\r\n", stream->feed_filename);
1278 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: text/html\r\n");
1279 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1280 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<html><head><title>Moved</title></head><body>\r\n");
1281 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "You should be <a href=\"%s\">redirected</a>.\r\n", stream->feed_filename);
1282 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</body></html>\r\n");
cde25790
PG
1283
1284 /* prepare output buffer */
1285 c->buffer_ptr = c->buffer;
1286 c->buffer_end = q;
1287 c->state = HTTPSTATE_SEND_HEADER;
1288 return 0;
1289 }
1290
3120d2a2
PG
1291 /* If this is WMP, get the rate information */
1292 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
cde25790
PG
1293 if (modify_current_stream(c, ratebuf)) {
1294 for (i = 0; i < sizeof(c->feed_streams) / sizeof(c->feed_streams[0]); i++) {
1295 if (c->switch_feed_streams[i] >= 0)
1296 do_switch_stream(c, i);
1297 }
1298 }
3120d2a2
PG
1299 }
1300
755bfeab 1301 /* If already streaming this feed, do not let start another feeder. */
d0a5513b
AB
1302 if (stream->feed_opened) {
1303 snprintf(msg, sizeof(msg), "This feed is already being received.");
1304 goto send_error;
1305 }
1306
611c5741 1307 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
6edd6884 1308 current_bandwidth += stream->bandwidth;
115329f1 1309
edfdd798 1310 if (c->post == 0 && max_bandwidth < current_bandwidth) {
42a63c6a
PG
1311 c->http_error = 200;
1312 q = c->buffer;
d445a7e9
PG
1313 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 Server too busy\r\n");
1314 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: text/html\r\n");
1315 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1316 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<html><head><title>Too busy</title></head><body>\r\n");
33f5e2ec
AB
1317 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<p>The server is too busy to serve your request at this time.</p>\r\n");
1318 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<p>The bandwidth being served (including your stream) is %dkbit/sec, and this exceeds the limit of %dkbit/sec.</p>\r\n",
6edd6884 1319 current_bandwidth, max_bandwidth);
d445a7e9 1320 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</body></html>\r\n");
42a63c6a
PG
1321
1322 /* prepare output buffer */
1323 c->buffer_ptr = c->buffer;
1324 c->buffer_end = q;
1325 c->state = HTTPSTATE_SEND_HEADER;
1326 return 0;
1327 }
115329f1 1328
829ac53d 1329 if (redir_type != REDIR_NONE) {
7434ba6d 1330 char *hostinfo = 0;
115329f1 1331
7434ba6d
PG
1332 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1333 if (strncasecmp(p, "Host:", 5) == 0) {
1334 hostinfo = p + 5;
1335 break;
1336 }
1337 p = strchr(p, '\n');
1338 if (!p)
1339 break;
1340
1341 p++;
1342 }
1343
1344 if (hostinfo) {
1345 char *eoh;
1346 char hostbuf[260];
1347
1348 while (isspace(*hostinfo))
1349 hostinfo++;
1350
1351 eoh = strchr(hostinfo, '\n');
1352 if (eoh) {
1353 if (eoh[-1] == '\r')
1354 eoh--;
1355
1356 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1357 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1358 hostbuf[eoh - hostinfo] = 0;
1359
1360 c->http_error = 200;
1361 q = c->buffer;
829ac53d
FB
1362 switch(redir_type) {
1363 case REDIR_ASX:
d445a7e9
PG
1364 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 ASX Follows\r\n");
1365 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: video/x-ms-asf\r\n");
1366 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1367 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<ASX Version=\"3\">\r\n");
7c054ea7 1368 //q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<!-- Autogenerated by ffserver -->\r\n");
115329f1 1369 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n",
42a63c6a 1370 hostbuf, filename, info);
d445a7e9 1371 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</ASX>\r\n");
829ac53d
FB
1372 break;
1373 case REDIR_RAM:
d445a7e9
PG
1374 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 RAM Follows\r\n");
1375 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: audio/x-pn-realaudio\r\n");
1376 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1377 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "# Autogenerated by ffserver\r\n");
115329f1 1378 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "http://%s/%s%s\r\n",
42a63c6a 1379 hostbuf, filename, info);
829ac53d
FB
1380 break;
1381 case REDIR_ASF:
d445a7e9
PG
1382 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 ASF Redirect follows\r\n");
1383 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: video/x-ms-asf\r\n");
1384 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1385 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "[Reference]\r\n");
115329f1 1386 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Ref1=http://%s/%s%s\r\n",
cde25790 1387 hostbuf, filename, info);
829ac53d
FB
1388 break;
1389 case REDIR_RTSP:
1390 {
1391 char hostname[256], *p;
1392 /* extract only hostname */
f7d78f36 1393 av_strlcpy(hostname, hostbuf, sizeof(hostname));
829ac53d
FB
1394 p = strrchr(hostname, ':');
1395 if (p)
1396 *p = '\0';
d445a7e9 1397 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 RTSP Redirect follows\r\n");
829ac53d 1398 /* XXX: incorrect mime type ? */
d445a7e9
PG
1399 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: application/x-rtsp\r\n");
1400 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
115329f1
DB
1401 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "rtsp://%s:%d/%s\r\n",
1402 hostname, ntohs(my_rtsp_addr.sin_port),
829ac53d
FB
1403 filename);
1404 }
1405 break;
1406 case REDIR_SDP:
1407 {
0c1a9eda 1408 uint8_t *sdp_data;
829ac53d
FB
1409 int sdp_data_size, len;
1410 struct sockaddr_in my_addr;
1411
d445a7e9
PG
1412 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1413 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: application/sdp\r\n");
1414 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
829ac53d
FB
1415
1416 len = sizeof(my_addr);
1417 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
115329f1 1418
829ac53d 1419 /* XXX: should use a dynamic buffer */
115329f1
DB
1420 sdp_data_size = prepare_sdp_description(stream,
1421 &sdp_data,
829ac53d
FB
1422 my_addr.sin_addr);
1423 if (sdp_data_size > 0) {
1424 memcpy(q, sdp_data, sdp_data_size);
1425 q += sdp_data_size;
1426 *q = '\0';
1427 av_free(sdp_data);
1428 }
1429 }
1430 break;
1431 default:
0f4e8165 1432 abort();
829ac53d 1433 break;
2effd274 1434 }
7434ba6d
PG
1435
1436 /* prepare output buffer */
1437 c->buffer_ptr = c->buffer;
1438 c->buffer_end = q;
1439 c->state = HTTPSTATE_SEND_HEADER;
1440 return 0;
1441 }
1442 }
1443 }
1444
d445a7e9 1445 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
7434ba6d 1446 goto send_error;
85f07f22
FB
1447 }
1448
a6e14edd 1449 stream->conns_served++;
7434ba6d 1450
85f07f22
FB
1451 /* XXX: add there authenticate and IP match */
1452
edfdd798 1453 if (c->post) {
85f07f22
FB
1454 /* if post, it means a feed is being sent */
1455 if (!stream->is_feed) {
7434ba6d
PG
1456 /* However it might be a status report from WMP! Lets log the data
1457 * as it might come in handy one day
1458 */
1459 char *logline = 0;
3120d2a2 1460 int client_id = 0;
115329f1 1461
7434ba6d
PG
1462 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1463 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1464 logline = p;
1465 break;
1466 }
611c5741 1467 if (strncasecmp(p, "Pragma: client-id=", 18) == 0)
3120d2a2 1468 client_id = strtol(p + 18, 0, 10);
7434ba6d
PG
1469 p = strchr(p, '\n');
1470 if (!p)
1471 break;
1472
1473 p++;
1474 }
1475
1476 if (logline) {
1477 char *eol = strchr(logline, '\n');
1478
1479 logline += 17;
1480
1481 if (eol) {
1482 if (eol[-1] == '\r')
1483 eol--;
7906085f 1484 http_log("%.*s\n", (int) (eol - logline), logline);
7434ba6d
PG
1485 c->suppress_log = 1;
1486 }
1487 }
3120d2a2 1488
cde25790
PG
1489#ifdef DEBUG_WMP
1490 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1491#endif
1492
1493 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1494 HTTPContext *wmpc;
1495
1496 /* Now we have to find the client_id */
1497 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1498 if (wmpc->wmp_client_id == client_id)
1499 break;
1500 }
1501
2d563d2f
AB
1502 if (wmpc && modify_current_stream(wmpc, ratebuf))
1503 wmpc->switch_pending = 1;
3120d2a2 1504 }
115329f1 1505
d445a7e9 1506 snprintf(msg, sizeof(msg), "POST command not handled");
cb275dd9 1507 c->stream = 0;
85f07f22
FB
1508 goto send_error;
1509 }
1510 if (http_start_receive_data(c) < 0) {
d445a7e9 1511 snprintf(msg, sizeof(msg), "could not open feed");
85f07f22
FB
1512 goto send_error;
1513 }
1514 c->http_error = 0;
1515 c->state = HTTPSTATE_RECEIVE_DATA;
1516 return 0;
1517 }
1518
cde25790 1519#ifdef DEBUG_WMP
611c5741 1520 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
cde25790 1521 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1522#endif
1523
85f07f22
FB
1524 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1525 goto send_stats;
1526
1527 /* open input stream */
1528 if (open_input_stream(c, info) < 0) {
d445a7e9 1529 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
85f07f22
FB
1530 goto send_error;
1531 }
1532
1533 /* prepare http header */
1534 q = c->buffer;
d445a7e9 1535 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
85f07f22
FB
1536 mime_type = c->stream->fmt->mime_type;
1537 if (!mime_type)
087fa475 1538 mime_type = "application/x-octet-stream";
d445a7e9 1539 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
85f07f22
FB
1540
1541 /* for asf, we need extra headers */
8256c0a3 1542 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
3120d2a2 1543 /* Need to allocate a client id */
3120d2a2 1544
1df93ae9 1545 c->wmp_client_id = av_random(&random_state) & 0x7fffffff;
3120d2a2 1546
d445a7e9 1547 q += snprintf(q, q - (char *) 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);
85f07f22 1548 }
d445a7e9
PG
1549 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1550 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
115329f1 1551
85f07f22
FB
1552 /* prepare output buffer */
1553 c->http_error = 0;
1554 c->buffer_ptr = c->buffer;
1555 c->buffer_end = q;
1556 c->state = HTTPSTATE_SEND_HEADER;
1557 return 0;
1558 send_error:
1559 c->http_error = 404;
1560 q = c->buffer;
d445a7e9
PG
1561 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 404 Not Found\r\n");
1562 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: %s\r\n", "text/html");
1563 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1564 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<HTML>\n");
1565 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<HEAD><TITLE>404 Not Found</TITLE></HEAD>\n");
1566 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<BODY>%s</BODY>\n", msg);
1567 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</HTML>\n");
85f07f22
FB
1568
1569 /* prepare output buffer */
1570 c->buffer_ptr = c->buffer;
1571 c->buffer_end = q;
1572 c->state = HTTPSTATE_SEND_HEADER;
1573 return 0;
1574 send_stats:
1575 compute_stats(c);
1576 c->http_error = 200; /* horrible : we use this value to avoid
1577 going to the send data state */
1578 c->state = HTTPSTATE_SEND_HEADER;
1579 return 0;
1580}
1581
0c1a9eda 1582static void fmt_bytecount(ByteIOContext *pb, int64_t count)
2ac887ba
PG
1583{
1584 static const char *suffix = " kMGTP";
1585 const char *s;
1586
611c5741 1587 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
2ac887ba 1588
4733abcb 1589 url_fprintf(pb, "%"PRId64"%c", count, *s);
2ac887ba
PG
1590}
1591
85f07f22
FB
1592static void compute_stats(HTTPContext *c)
1593{
1594 HTTPContext *c1;
1595 FFStream *stream;
2effd274 1596 char *p;
85f07f22 1597 time_t ti;
2effd274
FB
1598 int i, len;
1599 ByteIOContext pb1, *pb = &pb1;
cde25790 1600
2effd274
FB
1601 if (url_open_dyn_buf(pb) < 0) {
1602 /* XXX: return an error ? */
cde25790 1603 c->buffer_ptr = c->buffer;
2effd274
FB
1604 c->buffer_end = c->buffer;
1605 return;
cde25790 1606 }
85f07f22 1607
2effd274
FB
1608 url_fprintf(pb, "HTTP/1.0 200 OK\r\n");
1609 url_fprintf(pb, "Content-type: %s\r\n", "text/html");
1610 url_fprintf(pb, "Pragma: no-cache\r\n");
1611 url_fprintf(pb, "\r\n");
115329f1 1612
2effd274 1613 url_fprintf(pb, "<HEAD><TITLE>FFServer Status</TITLE>\n");
611c5741 1614 if (c->stream->feed_filename)
2effd274 1615 url_fprintf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
2effd274
FB
1616 url_fprintf(pb, "</HEAD>\n<BODY>");
1617 url_fprintf(pb, "<H1>FFServer Status</H1>\n");
85f07f22 1618 /* format status */
2effd274
FB
1619 url_fprintf(pb, "<H2>Available Streams</H2>\n");
1620 url_fprintf(pb, "<TABLE cellspacing=0 cellpadding=4>\n");
1621 url_fprintf(pb, "<TR><Th valign=top>Path<th align=left>Served<br>Conns<Th><br>bytes<Th valign=top>Format<Th>Bit rate<br>kbits/s<Th align=left>Video<br>kbits/s<th><br>Codec<Th align=left>Audio<br>kbits/s<th><br>Codec<Th align=left valign=top>Feed\n");
85f07f22
FB
1622 stream = first_stream;
1623 while (stream != NULL) {
42a63c6a
PG
1624 char sfilename[1024];
1625 char *eosf;
1626
a6e14edd 1627 if (stream->feed != stream) {
f7d78f36 1628 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
a6e14edd
PG
1629 eosf = sfilename + strlen(sfilename);
1630 if (eosf - sfilename >= 4) {
611c5741 1631 if (strcmp(eosf - 4, ".asf") == 0)
a6e14edd 1632 strcpy(eosf - 4, ".asx");
611c5741 1633 else if (strcmp(eosf - 3, ".rm") == 0)
a6e14edd 1634 strcpy(eosf - 3, ".ram");
25e3e53d 1635 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
829ac53d
FB
1636 /* generate a sample RTSP director if
1637 unicast. Generate an SDP redirector if
1638 multicast */
2effd274
FB
1639 eosf = strrchr(sfilename, '.');
1640 if (!eosf)
1641 eosf = sfilename + strlen(sfilename);
829ac53d
FB
1642 if (stream->is_multicast)
1643 strcpy(eosf, ".sdp");
1644 else
1645 strcpy(eosf, ".rtsp");
a6e14edd 1646 }
42a63c6a 1647 }
115329f1
DB
1648
1649 url_fprintf(pb, "<TR><TD><A HREF=\"/%s\">%s</A> ",
a6e14edd 1650 sfilename, stream->filename);
2effd274 1651 url_fprintf(pb, "<td align=right> %d <td align=right> ",
2ac887ba 1652 stream->conns_served);
2effd274 1653 fmt_bytecount(pb, stream->bytes_served);
a6e14edd
PG
1654 switch(stream->stream_type) {
1655 case STREAM_TYPE_LIVE:
1656 {
1657 int audio_bit_rate = 0;
1658 int video_bit_rate = 0;
58445440
ZK
1659 const char *audio_codec_name = "";
1660 const char *video_codec_name = "";
1661 const char *audio_codec_name_extra = "";
1662 const char *video_codec_name_extra = "";
a6e14edd
PG
1663
1664 for(i=0;i<stream->nb_streams;i++) {
1665 AVStream *st = stream->streams[i];
01f4895c
MN
1666 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1667 switch(st->codec->codec_type) {
a6e14edd 1668 case CODEC_TYPE_AUDIO:
01f4895c 1669 audio_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1670 if (codec) {
1671 if (*audio_codec_name)
1672 audio_codec_name_extra = "...";
1673 audio_codec_name = codec->name;
1674 }
1675 break;
1676 case CODEC_TYPE_VIDEO:
01f4895c 1677 video_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1678 if (codec) {
1679 if (*video_codec_name)
1680 video_codec_name_extra = "...";
1681 video_codec_name = codec->name;
1682 }
1683 break;
e240a0bb 1684 case CODEC_TYPE_DATA:
01f4895c 1685 video_bit_rate += st->codec->bit_rate;
e240a0bb 1686 break;
a6e14edd 1687 default:
0f4e8165 1688 abort();
79c4ea3c 1689 }
85f07f22 1690 }
115329f1 1691 url_fprintf(pb, "<TD align=center> %s <TD align=right> %d <TD align=right> %d <TD> %s %s <TD align=right> %d <TD> %s %s",
a6e14edd 1692 stream->fmt->name,
6edd6884 1693 stream->bandwidth,
a6e14edd
PG
1694 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1695 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
611c5741 1696 if (stream->feed)
2effd274 1697 url_fprintf(pb, "<TD>%s", stream->feed->filename);
611c5741 1698 else
2effd274 1699 url_fprintf(pb, "<TD>%s", stream->feed_filename);
2effd274 1700 url_fprintf(pb, "\n");
85f07f22 1701 }
a6e14edd
PG
1702 break;
1703 default:
2effd274 1704 url_fprintf(pb, "<TD align=center> - <TD align=right> - <TD align=right> - <td><td align=right> - <TD>\n");
a6e14edd 1705 break;
85f07f22 1706 }
85f07f22
FB
1707 }
1708 stream = stream->next;
1709 }
2effd274 1710 url_fprintf(pb, "</TABLE>\n");
a6e14edd
PG
1711
1712 stream = first_stream;
1713 while (stream != NULL) {
1714 if (stream->feed == stream) {
2effd274 1715 url_fprintf(pb, "<h2>Feed %s</h2>", stream->filename);
cde25790 1716 if (stream->pid) {
2effd274 1717 url_fprintf(pb, "Running as pid %d.\n", stream->pid);
cde25790 1718
2effd274
FB
1719#if defined(linux) && !defined(CONFIG_NOCUTILS)
1720 {
1721 FILE *pid_stat;
1722 char ps_cmd[64];
1723
1724 /* This is somewhat linux specific I guess */
115329f1
DB
1725 snprintf(ps_cmd, sizeof(ps_cmd),
1726 "ps -o \"%%cpu,cputime\" --no-headers %d",
2effd274 1727 stream->pid);
115329f1 1728
2effd274
FB
1729 pid_stat = popen(ps_cmd, "r");
1730 if (pid_stat) {
1731 char cpuperc[10];
1732 char cpuused[64];
115329f1
DB
1733
1734 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2effd274
FB
1735 cpuused) == 2) {
1736 url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
1737 cpuperc, cpuused);
1738 }
1739 fclose(pid_stat);
cde25790 1740 }
cde25790
PG
1741 }
1742#endif
1743
2effd274 1744 url_fprintf(pb, "<p>");
cde25790 1745 }
2effd274 1746 url_fprintf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
a6e14edd
PG
1747
1748 for (i = 0; i < stream->nb_streams; i++) {
1749 AVStream *st = stream->streams[i];
01f4895c 1750 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
b29f97d1 1751 const char *type = "unknown";
b582f314
PG
1752 char parameters[64];
1753
1754 parameters[0] = 0;
a6e14edd 1755
01f4895c 1756 switch(st->codec->codec_type) {
a6e14edd
PG
1757 case CODEC_TYPE_AUDIO:
1758 type = "audio";
acdc8520 1759 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
a6e14edd
PG
1760 break;
1761 case CODEC_TYPE_VIDEO:
1762 type = "video";
01f4895c
MN
1763 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
1764 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
a6e14edd
PG
1765 break;
1766 default:
0f4e8165 1767 abort();
a6e14edd 1768 }
2effd274 1769 url_fprintf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
01f4895c 1770 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
a6e14edd 1771 }
2effd274 1772 url_fprintf(pb, "</table>\n");
a6e14edd 1773
115329f1 1774 }
a6e14edd
PG
1775 stream = stream->next;
1776 }
115329f1 1777
85f07f22
FB
1778#if 0
1779 {
1780 float avg;
1781 AVCodecContext *enc;
1782 char buf[1024];
115329f1 1783
85f07f22
FB
1784 /* feed status */
1785 stream = first_feed;
1786 while (stream != NULL) {
2effd274
FB
1787 url_fprintf(pb, "<H1>Feed '%s'</H1>\n", stream->filename);
1788 url_fprintf(pb, "<TABLE>\n");
1789 url_fprintf(pb, "<TR><TD>Parameters<TD>Frame count<TD>Size<TD>Avg bitrate (kbits/s)\n");
85f07f22
FB
1790 for(i=0;i<stream->nb_streams;i++) {
1791 AVStream *st = stream->streams[i];
1792 FeedData *fdata = st->priv_data;
01f4895c 1793 enc = st->codec;
115329f1 1794
85f07f22
FB
1795 avcodec_string(buf, sizeof(buf), enc);
1796 avg = fdata->avg_frame_size * (float)enc->rate * 8.0;
1797 if (enc->codec->type == CODEC_TYPE_AUDIO && enc->frame_size > 0)
1798 avg /= enc->frame_size;
949b1a13 1799 url_fprintf(pb, "<TR><TD>%s <TD> %d <TD> %"PRId64" <TD> %0.1f\n",
85f07f22
FB
1800 buf, enc->frame_number, fdata->data_count, avg / 1000.0);
1801 }
2effd274 1802 url_fprintf(pb, "</TABLE>\n");
85f07f22
FB
1803 stream = stream->next_feed;
1804 }
1805 }
1806#endif
1807
1808 /* connection status */
2effd274 1809 url_fprintf(pb, "<H2>Connection Status</H2>\n");
85f07f22 1810
2effd274 1811 url_fprintf(pb, "Number of connections: %d / %d<BR>\n",
85f07f22
FB
1812 nb_connections, nb_max_connections);
1813
2effd274 1814 url_fprintf(pb, "Bandwidth in use: %dk / %dk<BR>\n",
6edd6884 1815 current_bandwidth, max_bandwidth);
42a63c6a 1816
2effd274
FB
1817 url_fprintf(pb, "<TABLE>\n");
1818 url_fprintf(pb, "<TR><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
85f07f22
FB
1819 c1 = first_http_ctx;
1820 i = 0;
2effd274 1821 while (c1 != NULL) {
cde25790
PG
1822 int bitrate;
1823 int j;
1824
1825 bitrate = 0;
2effd274
FB
1826 if (c1->stream) {
1827 for (j = 0; j < c1->stream->nb_streams; j++) {
2d563d2f 1828 if (!c1->stream->feed)
01f4895c 1829 bitrate += c1->stream->streams[j]->codec->bit_rate;
2d563d2f
AB
1830 else if (c1->feed_streams[j] >= 0)
1831 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
cde25790
PG
1832 }
1833 }
1834
85f07f22
FB
1835 i++;
1836 p = inet_ntoa(c1->from_addr.sin_addr);
115329f1
DB
1837 url_fprintf(pb, "<TR><TD><B>%d</B><TD>%s%s<TD>%s<TD>%s<TD>%s<td align=right>",
1838 i,
1839 c1->stream ? c1->stream->filename : "",
2effd274 1840 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
115329f1 1841 p,
2effd274
FB
1842 c1->protocol,
1843 http_state[c1->state]);
1844 fmt_bytecount(pb, bitrate);
1845 url_fprintf(pb, "<td align=right>");
1846 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
1847 url_fprintf(pb, "<td align=right>");
1848 fmt_bytecount(pb, c1->data_count);
1849 url_fprintf(pb, "\n");
85f07f22
FB
1850 c1 = c1->next;
1851 }
2effd274 1852 url_fprintf(pb, "</TABLE>\n");
115329f1 1853
85f07f22
FB
1854 /* date */
1855 ti = time(NULL);
1856 p = ctime(&ti);
2effd274
FB
1857 url_fprintf(pb, "<HR size=1 noshade>Generated at %s", p);
1858 url_fprintf(pb, "</BODY>\n</HTML>\n");
85f07f22 1859
2effd274
FB
1860 len = url_close_dyn_buf(pb, &c->pb_buffer);
1861 c->buffer_ptr = c->pb_buffer;
1862 c->buffer_end = c->pb_buffer + len;
85f07f22
FB
1863}
1864
2effd274
FB
1865/* check if the parser needs to be opened for stream i */
1866static void open_parser(AVFormatContext *s, int i)
85f07f22 1867{
2effd274
FB
1868 AVStream *st = s->streams[i];
1869 AVCodec *codec;
31def229 1870
01f4895c
MN
1871 if (!st->codec->codec) {
1872 codec = avcodec_find_decoder(st->codec->codec_id);
2effd274 1873 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
01f4895c 1874 st->codec->parse_only = 1;
611c5741 1875 if (avcodec_open(st->codec, codec) < 0)
01f4895c 1876 st->codec->parse_only = 0;
cde25790
PG
1877 }
1878 }
85f07f22
FB
1879}
1880
1881static int open_input_stream(HTTPContext *c, const char *info)
1882{
1883 char buf[128];
1884 char input_filename[1024];
1885 AVFormatContext *s;
2effd274 1886 int buf_size, i;
0c1a9eda 1887 int64_t stream_pos;
85f07f22
FB
1888
1889 /* find file name */
1890 if (c->stream->feed) {
1891 strcpy(input_filename, c->stream->feed->feed_filename);
1892 buf_size = FFM_PACKET_SIZE;
1893 /* compute position (absolute time) */
611c5741 1894 if (find_info_tag(buf, sizeof(buf), "date", info))
f9436161 1895 {
85f07f22 1896 stream_pos = parse_date(buf, 0);
f9436161
SS
1897 if (stream_pos == INT64_MIN)
1898 return -1;
1899 }
611c5741 1900 else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
f747e6d3 1901 int prebuffer = strtol(buf, 0, 10);
0c1a9eda 1902 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
611c5741 1903 } else
0c1a9eda 1904 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
85f07f22
FB
1905 } else {
1906 strcpy(input_filename, c->stream->feed_filename);
1907 buf_size = 0;
1908 /* compute position (relative time) */
611c5741 1909 if (find_info_tag(buf, sizeof(buf), "date", info))
f9436161 1910 {
85f07f22 1911 stream_pos = parse_date(buf, 1);
f9436161
SS
1912 if (stream_pos == INT64_MIN)
1913 return -1;
1914 }
611c5741 1915 else
85f07f22 1916 stream_pos = 0;
85f07f22
FB
1917 }
1918 if (input_filename[0] == '\0')
1919 return -1;
1920
8256c0a3
PG
1921#if 0
1922 { time_t when = stream_pos / 1000000;
949b1a13 1923 http_log("Stream pos = %"PRId64", time=%s", stream_pos, ctime(&when));
8256c0a3
PG
1924 }
1925#endif
1926
85f07f22 1927 /* open stream */
115329f1 1928 if (av_open_input_file(&s, input_filename, c->stream->ifmt,
e240a0bb 1929 buf_size, c->stream->ap_in) < 0) {
2effd274 1930 http_log("%s not found", input_filename);
85f07f22 1931 return -1;
2effd274 1932 }
9dc0bc3d 1933 s->flags |= AVFMT_FLAG_GENPTS;
85f07f22 1934 c->fmt_in = s;
89da5781 1935 av_find_stream_info(c->fmt_in);
115329f1 1936
2effd274
FB
1937 /* open each parser */
1938 for(i=0;i<s->nb_streams;i++)
1939 open_parser(s, i);
1940
1941 /* choose stream as clock source (we favorize video stream if
1942 present) for packet sending */
1943 c->pts_stream_index = 0;
1944 for(i=0;i<c->stream->nb_streams;i++) {
115329f1 1945 if (c->pts_stream_index == 0 &&
01f4895c 1946 c->stream->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO) {
2effd274
FB
1947 c->pts_stream_index = i;
1948 }
1949 }
85f07f22 1950
e8d27bc3 1951#if 1
611c5741 1952 if (c->fmt_in->iformat->read_seek)
e8d27bc3 1953 c->fmt_in->iformat->read_seek(c->fmt_in, 0, stream_pos, 0);
e240a0bb 1954#endif
2effd274
FB
1955 /* set the start time (needed for maxtime and RTP packet timing) */
1956 c->start_time = cur_time;
1957 c->first_pts = AV_NOPTS_VALUE;
85f07f22
FB
1958 return 0;
1959}
1960
e240a0bb
FB
1961/* return the server clock (in us) */
1962static int64_t get_server_clock(HTTPContext *c)
2effd274 1963{
e240a0bb 1964 /* compute current pts value from system time */
c3f58185 1965 return (cur_time - c->start_time) * 1000;
2effd274
FB
1966}
1967
e240a0bb
FB
1968/* return the estimated time at which the current packet must be sent
1969 (in us) */
1970static int64_t get_packet_send_clock(HTTPContext *c)
2effd274 1971{
e240a0bb 1972 int bytes_left, bytes_sent, frame_bytes;
115329f1 1973
e240a0bb 1974 frame_bytes = c->cur_frame_bytes;
611c5741 1975 if (frame_bytes <= 0)
e240a0bb 1976 return c->cur_pts;
611c5741 1977 else {
e240a0bb
FB
1978 bytes_left = c->buffer_end - c->buffer_ptr;
1979 bytes_sent = frame_bytes - bytes_left;
1980 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2effd274 1981 }
2effd274 1982}
2effd274 1983
2effd274 1984
2effd274
FB
1985static int http_prepare_data(HTTPContext *c)
1986{
1987 int i, len, ret;
1988 AVFormatContext *ctx;
1989
bc351386 1990 av_freep(&c->pb_buffer);
2effd274
FB
1991 switch(c->state) {
1992 case HTTPSTATE_SEND_DATA_HEADER:
1993 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
f7d78f36
MR
1994 av_strlcpy(c->fmt_ctx.author, c->stream->author,
1995 sizeof(c->fmt_ctx.author));
1996 av_strlcpy(c->fmt_ctx.comment, c->stream->comment,
1997 sizeof(c->fmt_ctx.comment));
1998 av_strlcpy(c->fmt_ctx.copyright, c->stream->copyright,
1999 sizeof(c->fmt_ctx.copyright));
2000 av_strlcpy(c->fmt_ctx.title, c->stream->title,
2001 sizeof(c->fmt_ctx.title));
2effd274
FB
2002
2003 /* open output stream by using specified codecs */
2004 c->fmt_ctx.oformat = c->stream->fmt;
2005 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2006 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
2007 AVStream *st;
bb270c08 2008 AVStream *src;
2effd274 2009 st = av_mallocz(sizeof(AVStream));
8d931070 2010 st->codec= avcodec_alloc_context();
2effd274
FB
2011 c->fmt_ctx.streams[i] = st;
2012 /* if file or feed, then just take streams from FFStream struct */
115329f1 2013 if (!c->stream->feed ||
2effd274 2014 c->stream->feed == c->stream)
7c054ea7 2015 src = c->stream->streams[i];
2effd274 2016 else
7c054ea7
PG
2017 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2018
bb270c08
DB
2019 *st = *src;
2020 st->priv_data = 0;
01f4895c 2021 st->codec->frame_number = 0; /* XXX: should be done in
2effd274 2022 AVStream, not in codec */
a4d70941
PG
2023 /* I'm pretty sure that this is not correct...
2024 * However, without it, we crash
2025 */
01f4895c 2026 st->codec->coded_frame = &dummy_frame;
2effd274
FB
2027 }
2028 c->got_key_frame = 0;
2029
2030 /* prepare header and save header data in a stream */
2031 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2032 /* XXX: potential leak */
2033 return -1;
2034 }
2035 c->fmt_ctx.pb.is_streamed = 1;
2036
3c27199b 2037 av_set_parameters(&c->fmt_ctx, NULL);
f75cdda7
AB
2038 if (av_write_header(&c->fmt_ctx) < 0)
2039 return -1;
2effd274
FB
2040
2041 len = url_close_dyn_buf(&c->fmt_ctx.pb, &c->pb_buffer);
2042 c->buffer_ptr = c->pb_buffer;
2043 c->buffer_end = c->pb_buffer + len;
2044
2045 c->state = HTTPSTATE_SEND_DATA;
85f07f22
FB
2046 c->last_packet_sent = 0;
2047 break;
2048 case HTTPSTATE_SEND_DATA:
2049 /* find a new packet */
85f07f22
FB
2050 {
2051 AVPacket pkt;
115329f1 2052
85f07f22 2053 /* read a packet from the input stream */
611c5741 2054 if (c->stream->feed)
115329f1 2055 ffm_set_write_index(c->fmt_in,
85f07f22
FB
2056 c->stream->feed->feed_write_index,
2057 c->stream->feed->feed_size);
ec3b2232 2058
115329f1 2059 if (c->stream->max_time &&
611c5741 2060 c->stream->max_time + c->start_time - cur_time < 0)
ec3b2232
PG
2061 /* We have timed out */
2062 c->state = HTTPSTATE_SEND_DATA_TRAILER;
611c5741 2063 else {
6edd6884 2064 redo:
2effd274
FB
2065 if (av_read_frame(c->fmt_in, &pkt) < 0) {
2066 if (c->stream->feed && c->stream->feed->feed_opened) {
2067 /* if coming from feed, it means we reached the end of the
2068 ffm file, so must wait for more data */
2069 c->state = HTTPSTATE_WAIT_FEED;
2070 return 1; /* state changed */
2071 } else {
6edd6884
FB
2072 if (c->stream->loop) {
2073 av_close_input_file(c->fmt_in);
2074 c->fmt_in = NULL;
2075 if (open_input_stream(c, "") < 0)
2076 goto no_loop;
2077 goto redo;
2078 } else {
2079 no_loop:
2080 /* must send trailer now because eof or error */
2081 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2082 }
2effd274
FB
2083 }
2084 } else {
2085 /* update first pts if needed */
1bc1cfdd 2086 if (c->first_pts == AV_NOPTS_VALUE) {
c0df9d75 2087 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
1bc1cfdd
GF
2088 c->start_time = cur_time;
2089 }
2effd274
FB
2090 /* send it to the appropriate stream */
2091 if (c->stream->feed) {
2092 /* if coming from a feed, select the right stream */
2093 if (c->switch_pending) {
2094 c->switch_pending = 0;
2095 for(i=0;i<c->stream->nb_streams;i++) {
611c5741
AB
2096 if (c->switch_feed_streams[i] == pkt.stream_index)
2097 if (pkt.flags & PKT_FLAG_KEY)
2effd274 2098 do_switch_stream(c, i);
611c5741 2099 if (c->switch_feed_streams[i] >= 0)
2effd274 2100 c->switch_pending = 1;
2effd274
FB
2101 }
2102 }
cde25790 2103 for(i=0;i<c->stream->nb_streams;i++) {
2effd274
FB
2104 if (c->feed_streams[i] == pkt.stream_index) {
2105 pkt.stream_index = i;
611c5741 2106 if (pkt.flags & PKT_FLAG_KEY)
2effd274 2107 c->got_key_frame |= 1 << i;
115329f1 2108 /* See if we have all the key frames, then
2effd274 2109 * we start to send. This logic is not quite
115329f1 2110 * right, but it works for the case of a
2effd274 2111 * single video stream with one or more
115329f1
DB
2112 * audio streams (for which every frame is
2113 * typically a key frame).
2effd274 2114 */
115329f1 2115 if (!c->stream->send_on_key ||
611c5741 2116 ((c->got_key_frame + 1) >> c->stream->nb_streams))
2effd274 2117 goto send_it;
cde25790
PG
2118 }
2119 }
2effd274
FB
2120 } else {
2121 AVCodecContext *codec;
115329f1 2122
2effd274
FB
2123 send_it:
2124 /* specific handling for RTP: we use several
2125 output stream (one for each RTP
2126 connection). XXX: need more abstract handling */
2127 if (c->is_packetized) {
e240a0bb
FB
2128 AVStream *st;
2129 /* compute send time and duration */
2130 st = c->fmt_in->streams[pkt.stream_index];
c0df9d75 2131 c->cur_pts = av_rescale_q(pkt.dts, st->time_base, AV_TIME_BASE_Q);
e240a0bb 2132 if (st->start_time != AV_NOPTS_VALUE)
c0df9d75
MN
2133 c->cur_pts -= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
2134 c->cur_frame_duration = av_rescale_q(pkt.duration, st->time_base, AV_TIME_BASE_Q);
e240a0bb
FB
2135#if 0
2136 printf("index=%d pts=%0.3f duration=%0.6f\n",
2137 pkt.stream_index,
115329f1 2138 (double)c->cur_pts /
e240a0bb 2139 AV_TIME_BASE,
115329f1 2140 (double)c->cur_frame_duration /
e240a0bb
FB
2141 AV_TIME_BASE);
2142#endif
2143 /* find RTP context */
2effd274
FB
2144 c->packet_stream_index = pkt.stream_index;
2145 ctx = c->rtp_ctx[c->packet_stream_index];
1b52b6bd
MN
2146 if(!ctx) {
2147 av_free_packet(&pkt);
1bc1cfdd 2148 break;
1b52b6bd 2149 }
01f4895c 2150 codec = ctx->streams[0]->codec;
6edd6884
FB
2151 /* only one stream per RTP connection */
2152 pkt.stream_index = 0;
2effd274
FB
2153 } else {
2154 ctx = &c->fmt_ctx;
2155 /* Fudge here */
01f4895c 2156 codec = ctx->streams[pkt.stream_index]->codec;
85f07f22 2157 }
115329f1 2158
492cd3a9 2159 codec->coded_frame->key_frame = ((pkt.flags & PKT_FLAG_KEY) != 0);
2effd274 2160 if (c->is_packetized) {
bc351386
FB
2161 int max_packet_size;
2162 if (c->rtp_protocol == RTSP_PROTOCOL_RTP_TCP)
2163 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2164 else
2165 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
2166 ret = url_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2effd274
FB
2167 } else {
2168 ret = url_open_dyn_buf(&ctx->pb);
2169 }
2170 if (ret < 0) {
2171 /* XXX: potential leak */
2172 return -1;
2173 }
f1debfd0
AB
2174 if (pkt.dts != AV_NOPTS_VALUE)
2175 pkt.dts = av_rescale_q(pkt.dts,
2176 c->fmt_in->streams[pkt.stream_index]->time_base,
2177 ctx->streams[pkt.stream_index]->time_base);
2178 if (pkt.pts != AV_NOPTS_VALUE)
2179 pkt.pts = av_rescale_q(pkt.pts,
2180 c->fmt_in->streams[pkt.stream_index]->time_base,
2181 ctx->streams[pkt.stream_index]->time_base);
611c5741 2182 if (av_write_frame(ctx, &pkt))
2effd274 2183 c->state = HTTPSTATE_SEND_DATA_TRAILER;
115329f1 2184
2effd274 2185 len = url_close_dyn_buf(&ctx->pb, &c->pb_buffer);
e240a0bb 2186 c->cur_frame_bytes = len;
2effd274
FB
2187 c->buffer_ptr = c->pb_buffer;
2188 c->buffer_end = c->pb_buffer + len;
115329f1 2189
2effd274 2190 codec->frame_number++;
e240a0bb
FB
2191 if (len == 0)
2192 goto redo;
f747e6d3 2193 }
2effd274 2194 av_free_packet(&pkt);
85f07f22 2195 }
85f07f22
FB
2196 }
2197 }
2198 break;
2199 default:
2200 case HTTPSTATE_SEND_DATA_TRAILER:
2201 /* last packet test ? */
2effd274 2202 if (c->last_packet_sent || c->is_packetized)
85f07f22 2203 return -1;
2effd274 2204 ctx = &c->fmt_ctx;
85f07f22 2205 /* prepare header */
2effd274
FB
2206 if (url_open_dyn_buf(&ctx->pb) < 0) {
2207 /* XXX: potential leak */
2208 return -1;
2209 }
2210 av_write_trailer(ctx);
2211 len = url_close_dyn_buf(&ctx->pb, &c->pb_buffer);
2212 c->buffer_ptr = c->pb_buffer;
2213 c->buffer_end = c->pb_buffer + len;
2214
85f07f22
FB
2215 c->last_packet_sent = 1;
2216 break;
2217 }
2218 return 0;
2219}
2220
2221/* should convert the format at the same time */
bc351386
FB
2222/* send data starting at c->buffer_ptr to the output connection
2223 (either UDP or TCP connection) */
5eb765ef 2224static int http_send_data(HTTPContext *c)
85f07f22 2225{
e240a0bb 2226 int len, ret;
85f07f22 2227
bc351386
FB
2228 for(;;) {
2229 if (c->buffer_ptr >= c->buffer_end) {
2230 ret = http_prepare_data(c);
2231 if (ret < 0)
2232 return -1;
611c5741 2233 else if (ret != 0)
bc351386
FB
2234 /* state change requested */
2235 break;
2effd274 2236 } else {
bc351386
FB
2237 if (c->is_packetized) {
2238 /* RTP data output */
2239 len = c->buffer_end - c->buffer_ptr;
2240 if (len < 4) {
2241 /* fail safe - should never happen */
2242 fail1:
2243 c->buffer_ptr = c->buffer_end;
2effd274
FB
2244 return 0;
2245 }
bc351386
FB
2246 len = (c->buffer_ptr[0] << 24) |
2247 (c->buffer_ptr[1] << 16) |
2248 (c->buffer_ptr[2] << 8) |
2249 (c->buffer_ptr[3]);
2250 if (len > (c->buffer_end - c->buffer_ptr))
2251 goto fail1;
e240a0bb
FB
2252 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2253 /* nothing to send yet: we can wait */
2254 return 0;
2255 }
2256
2257 c->data_count += len;
2258 update_datarate(&c->datarate, c->data_count);
2259 if (c->stream)
2260 c->stream->bytes_served += len;
2261
bc351386
FB
2262 if (c->rtp_protocol == RTSP_PROTOCOL_RTP_TCP) {
2263 /* RTP packets are sent inside the RTSP TCP connection */
2264 ByteIOContext pb1, *pb = &pb1;
2265 int interleaved_index, size;
2266 uint8_t header[4];
2267 HTTPContext *rtsp_c;
115329f1 2268
bc351386
FB
2269 rtsp_c = c->rtsp_c;
2270 /* if no RTSP connection left, error */
2271 if (!rtsp_c)
2272 return -1;
2273 /* if already sending something, then wait. */
611c5741 2274 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
bc351386 2275 break;
bc351386
FB
2276 if (url_open_dyn_buf(pb) < 0)
2277 goto fail1;
2278 interleaved_index = c->packet_stream_index * 2;
2279 /* RTCP packets are sent at odd indexes */
2280 if (c->buffer_ptr[1] == 200)
2281 interleaved_index++;
2282 /* write RTSP TCP header */
2283 header[0] = '$';
2284 header[1] = interleaved_index;
2285 header[2] = len >> 8;
2286 header[3] = len;
2287 put_buffer(pb, header, 4);
2288 /* write RTP packet data */
2289 c->buffer_ptr += 4;
2290 put_buffer(pb, c->buffer_ptr, len);
2291 size = url_close_dyn_buf(pb, &c->packet_buffer);
2292 /* prepare asynchronous TCP sending */
2293 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2294 rtsp_c->packet_buffer_end = c->packet_buffer + size;
e240a0bb 2295 c->buffer_ptr += len;
115329f1 2296
e240a0bb 2297 /* send everything we can NOW */
c60202df
AB
2298 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2299 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
611c5741 2300 if (len > 0)
e240a0bb 2301 rtsp_c->packet_buffer_ptr += len;
e240a0bb
FB
2302 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2303 /* if we could not send all the data, we will
2304 send it later, so a new state is needed to
2305 "lock" the RTSP TCP connection */
2306 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2307 break;
611c5741 2308 } else
e240a0bb
FB
2309 /* all data has been sent */
2310 av_freep(&c->packet_buffer);
e240a0bb
FB
2311 } else {
2312 /* send RTP packet directly in UDP */
bc351386 2313 c->buffer_ptr += 4;
115329f1 2314 url_write(c->rtp_handles[c->packet_stream_index],
bc351386 2315 c->buffer_ptr, len);
e240a0bb
FB
2316 c->buffer_ptr += len;
2317 /* here we continue as we can send several packets per 10 ms slot */
bc351386 2318 }
bc351386
FB
2319 } else {
2320 /* TCP data output */
c60202df 2321 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
bc351386 2322 if (len < 0) {
8da4034f 2323 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
611c5741 2324 ff_neterrno() != FF_NETERROR(EINTR))
bc351386
FB
2325 /* error : close connection */
2326 return -1;
611c5741 2327 else
bc351386 2328 return 0;
611c5741 2329 } else
bc351386 2330 c->buffer_ptr += len;
611c5741 2331
e240a0bb
FB
2332 c->data_count += len;
2333 update_datarate(&c->datarate, c->data_count);
2334 if (c->stream)
2335 c->stream->bytes_served += len;
2336 break;
2effd274 2337 }
85f07f22 2338 }
bc351386 2339 } /* for(;;) */
85f07f22
FB
2340 return 0;
2341}
2342
2343static int http_start_receive_data(HTTPContext *c)
2344{
2345 int fd;
2346
2347 if (c->stream->feed_opened)
2348 return -1;
2349
e322ea48
PG
2350 /* Don't permit writing to this one */
2351 if (c->stream->readonly)
2352 return -1;
2353
85f07f22
FB
2354 /* open feed */
2355 fd = open(c->stream->feed_filename, O_RDWR);
2356 if (fd < 0)
2357 return -1;
2358 c->feed_fd = fd;
115329f1 2359
85f07f22
FB
2360 c->stream->feed_write_index = ffm_read_write_index(fd);
2361 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2362 lseek(fd, 0, SEEK_SET);
2363
2364 /* init buffer input */
2365 c->buffer_ptr = c->buffer;
2366 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2367 c->stream->feed_opened = 1;
2368 return 0;
2369}
115329f1 2370
85f07f22
FB
2371static int http_receive_data(HTTPContext *c)
2372{
85f07f22
FB
2373 HTTPContext *c1;
2374
a6e14edd
PG
2375 if (c->buffer_end > c->buffer_ptr) {
2376 int len;
2377
c60202df 2378 len = recv(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
a6e14edd 2379 if (len < 0) {
8da4034f 2380 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
611c5741 2381 ff_neterrno() != FF_NETERROR(EINTR))
a6e14edd
PG
2382 /* error : close connection */
2383 goto fail;
611c5741 2384 } else if (len == 0)
a6e14edd
PG
2385 /* end of connection : close it */
2386 goto fail;
611c5741 2387 else {
a6e14edd
PG
2388 c->buffer_ptr += len;
2389 c->data_count += len;
5eb765ef 2390 update_datarate(&c->datarate, c->data_count);
a6e14edd
PG
2391 }
2392 }
2393
d445a7e9
PG
2394 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2395 if (c->buffer[0] != 'f' ||
2396 c->buffer[1] != 'm') {
2397 http_log("Feed stream has become desynchronized -- disconnecting\n");
2398 goto fail;
2399 }
2400 }
2401
85f07f22 2402 if (c->buffer_ptr >= c->buffer_end) {
f747e6d3 2403 FFStream *feed = c->stream;
85f07f22
FB
2404 /* a packet has been received : write it in the store, except
2405 if header */
2406 if (c->data_count > FFM_PACKET_SIZE) {
115329f1 2407
949b1a13 2408 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
85f07f22
FB
2409 /* XXX: use llseek or url_seek */
2410 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2411 write(c->feed_fd, c->buffer, FFM_PACKET_SIZE);
115329f1 2412
85f07f22
FB
2413 feed->feed_write_index += FFM_PACKET_SIZE;
2414 /* update file size */
2415 if (feed->feed_write_index > c->stream->feed_size)
2416 feed->feed_size = feed->feed_write_index;
2417
2418 /* handle wrap around if max file size reached */
6b0bdc75 2419 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
85f07f22
FB
2420 feed->feed_write_index = FFM_PACKET_SIZE;
2421
2422 /* write index */
2423 ffm_write_write_index(c->feed_fd, feed->feed_write_index);
2424
2425 /* wake up any waiting connections */
2426 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
115329f1 2427 if (c1->state == HTTPSTATE_WAIT_FEED &&
611c5741 2428 c1->stream->feed == c->stream->feed)
85f07f22 2429 c1->state = HTTPSTATE_SEND_DATA;
85f07f22 2430 }
f747e6d3
PG
2431 } else {
2432 /* We have a header in our hands that contains useful data */
2433 AVFormatContext s;
bd7cf6ad 2434 AVInputFormat *fmt_in;
f747e6d3
PG
2435 ByteIOContext *pb = &s.pb;
2436 int i;
2437
2438 memset(&s, 0, sizeof(s));
2439
2440 url_open_buf(pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
2441 pb->buf_end = c->buffer_end; /* ?? */
2442 pb->is_streamed = 1;
2443
bd7cf6ad
FB
2444 /* use feed output format name to find corresponding input format */
2445 fmt_in = av_find_input_format(feed->fmt->name);
2446 if (!fmt_in)
2447 goto fail;
2448
98486a6b
RS
2449 if (fmt_in->priv_data_size > 0) {
2450 s.priv_data = av_mallocz(fmt_in->priv_data_size);
2451 if (!s.priv_data)
2452 goto fail;
bb270c08
DB
2453 } else
2454 s.priv_data = NULL;
ec3b2232 2455
bd7cf6ad 2456 if (fmt_in->read_header(&s, 0) < 0) {
ec3b2232 2457 av_freep(&s.priv_data);
f747e6d3
PG
2458 goto fail;
2459 }
2460
2461 /* Now we have the actual streams */
2462 if (s.nb_streams != feed->nb_streams) {
ec3b2232 2463 av_freep(&s.priv_data);
f747e6d3
PG
2464 goto fail;
2465 }
611c5741 2466 for (i = 0; i < s.nb_streams; i++)
115329f1 2467 memcpy(feed->streams[i]->codec,
01f4895c 2468 s.streams[i]->codec, sizeof(AVCodecContext));
ec3b2232 2469 av_freep(&s.priv_data);
85f07f22
FB
2470 }
2471 c->buffer_ptr = c->buffer;
2472 }
2473
85f07f22
FB
2474 return 0;
2475 fail:
2476 c->stream->feed_opened = 0;
2477 close(c->feed_fd);
2478 return -1;
2479}
2480
2effd274
FB
2481/********************************************************************/
2482/* RTSP handling */
2483
2484static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2485{
2486 const char *str;
2487 time_t ti;
2488 char *p;
2489 char buf2[32];
2490
2491 switch(error_number) {
7e665cd3
LA
2492 case RTSP_STATUS_OK:
2493 str = "OK";
2494 break;
2495 case RTSP_STATUS_METHOD:
2496 str = "Method Not Allowed";
2497 break;
2498 case RTSP_STATUS_BANDWIDTH:
2499 str = "Not Enough Bandwidth";
2500 break;
2501 case RTSP_STATUS_SESSION:
2502 str = "Session Not Found";
2503 break;
2504 case RTSP_STATUS_STATE:
2505 str = "Method Not Valid in This State";
2506 break;
2507 case RTSP_STATUS_AGGREGATE:
2508 str = "Aggregate operation not allowed";
2509 break;
2510 case RTSP_STATUS_ONLY_AGGREGATE:
2511 str = "Only aggregate operation allowed";
2512 break;
2513 case RTSP_STATUS_TRANSPORT:
2514 str = "Unsupported transport";
2515 break;
2516 case RTSP_STATUS_INTERNAL:
2517 str = "Internal Server Error";
2518 break;
2519 case RTSP_STATUS_SERVICE:
2520 str = "Service Unavailable";
2521 break;
2522 case RTSP_STATUS_VERSION:
2523 str = "RTSP Version not supported";
2524 break;
2effd274
FB
2525 default:
2526 str = "Unknown Error";
2527 break;
2528 }
115329f1 2529
2effd274
FB
2530 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2531 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2532
2533 /* output GMT time */
2534 ti = time(NULL);
2535 p = ctime(&ti);
2536 strcpy(buf2, p);
2537 p = buf2 + strlen(p) - 1;
2538 if (*p == '\n')
2539 *p = '\0';
2540 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2541}
2542
2543static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2544{
2545 rtsp_reply_header(c, error_number);
2546 url_fprintf(c->pb, "\r\n");
2547}
2548
2549static int rtsp_parse_request(HTTPContext *c)
2550{
2551 const char *p, *p1, *p2;
2552 char cmd[32];
2553 char url[1024];
2554 char protocol[32];
2555 char line[1024];
2556 ByteIOContext pb1;
2557 int len;
2558 RTSPHeader header1, *header = &header1;
115329f1 2559
2effd274
FB
2560 c->buffer_ptr[0] = '\0';
2561 p = c->buffer;
115329f1 2562
2effd274
FB
2563 get_word(cmd, sizeof(cmd), &p);
2564 get_word(url, sizeof(url), &p);
2565 get_word(protocol, sizeof(protocol), &p);
2566
f7d78f36
MR
2567 av_strlcpy(c->method, cmd, sizeof(c->method));
2568 av_strlcpy(c->url, url, sizeof(c->url));
2569 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2effd274
FB
2570
2571 c->pb = &pb1;
2572 if (url_open_dyn_buf(c->pb) < 0) {
2573 /* XXX: cannot do more */
2574 c->pb = NULL; /* safety */
2575 return -1;
2576 }
2577
2578 /* check version name */
2579 if (strcmp(protocol, "RTSP/1.0") != 0) {
2580 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2581 goto the_end;
2582 }
2583
2584 /* parse each header line */
2585 memset(header, 0, sizeof(RTSPHeader));
2586 /* skip to next line */
2587 while (*p != '\n' && *p != '\0')
2588 p++;
2589 if (*p == '\n')
2590 p++;
2591 while (*p != '\0') {
2592 p1 = strchr(p, '\n');
2593 if (!p1)
2594 break;
2595 p2 = p1;
2596 if (p2 > p && p2[-1] == '\r')
2597 p2--;
2598 /* skip empty line */
2599 if (p2 == p)
2600 break;
2601 len = p2 - p;
2602 if (len > sizeof(line) - 1)
2603 len = sizeof(line) - 1;
2604 memcpy(line, p, len);
2605 line[len] = '\0';
2606 rtsp_parse_line(header, line);
2607 p = p1 + 1;
2608 }
2609
2610 /* handle sequence number */
2611 c->seq = header->seq;
2612
611c5741 2613 if (!strcmp(cmd, "DESCRIBE"))
2effd274 2614 rtsp_cmd_describe(c, url);
611c5741 2615 else if (!strcmp(cmd, "OPTIONS"))
0df65975 2616 rtsp_cmd_options(c, url);
611c5741 2617 else if (!strcmp(cmd, "SETUP"))
2effd274 2618 rtsp_cmd_setup(c, url, header);
611c5741 2619 else if (!strcmp(cmd, "PLAY"))
2effd274 2620 rtsp_cmd_play(c, url, header);
611c5741 2621 else if (!strcmp(cmd, "PAUSE"))
2effd274 2622 rtsp_cmd_pause(c, url, header);
611c5741 2623 else if (!strcmp(cmd, "TEARDOWN"))
2effd274 2624 rtsp_cmd_teardown(c, url, header);
611c5741 2625 else
2effd274 2626 rtsp_reply_error(c, RTSP_STATUS_METHOD);
611c5741 2627
2effd274
FB
2628 the_end:
2629 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2630 c->pb = NULL; /* safety */
2631 if (len < 0) {
2632 /* XXX: cannot do more */
2633 return -1;
2634 }
2635 c->buffer_ptr = c->pb_buffer;
2636 c->buffer_end = c->pb_buffer + len;
2637 c->state = RTSPSTATE_SEND_REPLY;
2638 return 0;
2639}
2640
115329f1 2641static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
829ac53d 2642 struct in_addr my_ip)
2effd274 2643{
dd723472
LA
2644 AVFormatContext *avc;
2645 AVStream avs[MAX_STREAMS];
2646 int i;
115329f1 2647
dd723472
LA
2648 avc = av_alloc_format_context();
2649 if (avc == NULL) {
2effd274 2650 return -1;
dd723472
LA
2651 }
2652 if (stream->title[0] != 0) {
2653 av_strlcpy(avc->title, stream->title, sizeof(avc->title));
2654 } else {
2655 av_strlcpy(avc->title, "No Title", sizeof(avc->title));
2656 }
2657 avc->nb_streams = stream->nb_streams;
2658 if (stream->is_multicast) {
2659 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2660 inet_ntoa(stream->multicast_ip),
2661 stream->multicast_port, stream->multicast_ttl);
2662 }
115329f1 2663
2effd274 2664 for(i = 0; i < stream->nb_streams; i++) {
dd723472
LA
2665 avc->streams[i] = &avs[i];
2666 avc->streams[i]->codec = stream->streams[i]->codec;
2effd274 2667 }
dd723472
LA
2668 *pbuffer = av_mallocz(2048);
2669 avf_sdp_create(&avc, 1, *pbuffer, 2048);
2670 av_free(avc);
2671
2672 return strlen(*pbuffer);
2effd274
FB
2673}
2674
0df65975
AR
2675static void rtsp_cmd_options(HTTPContext *c, const char *url)
2676{
2677// rtsp_reply_header(c, RTSP_STATUS_OK);
2678 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2679 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2680 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2681 url_fprintf(c->pb, "\r\n");
2682}
2683
2effd274
FB
2684static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2685{
2686 FFStream *stream;
2687 char path1[1024];
2688 const char *path;
0c1a9eda 2689 uint8_t *content;
829ac53d
FB
2690 int content_length, len;
2691 struct sockaddr_in my_addr;
115329f1 2692
2effd274 2693 /* find which url is asked */
6ba5cbc6 2694 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2695 path = path1;
2696 if (*path == '/')
2697 path++;
2698
2699 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
2700 if (!stream->is_feed &&
2701 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2effd274
FB
2702 !strcmp(path, stream->filename)) {
2703 goto found;
2704 }
2705 }
2706 /* no stream found */
2707 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2708 return;
2709
2710 found:
2711 /* prepare the media description in sdp format */
829ac53d
FB
2712
2713 /* get the host IP */
2714 len = sizeof(my_addr);
2715 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
829ac53d 2716 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
2effd274
FB
2717 if (content_length < 0) {
2718 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2719 return;
2720 }
2721 rtsp_reply_header(c, RTSP_STATUS_OK);
2722 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
2723 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
2724 url_fprintf(c->pb, "\r\n");
2725 put_buffer(c->pb, content, content_length);
2726}
2727
2728static HTTPContext *find_rtp_session(const char *session_id)
2729{
2730 HTTPContext *c;
2731
2732 if (session_id[0] == '\0')
2733 return NULL;
2734
2735 for(c = first_http_ctx; c != NULL; c = c->next) {
2736 if (!strcmp(c->session_id, session_id))
2737 return c;
2738 }
2739 return NULL;
2740}
2741
b29f97d1 2742static RTSPTransportField *find_transport(RTSPHeader *h, enum RTSPProtocol protocol)
2effd274
FB
2743{
2744 RTSPTransportField *th;
2745 int i;
2746
2747 for(i=0;i<h->nb_transports;i++) {
2748 th = &h->transports[i];
2749 if (th->protocol == protocol)
2750 return th;
2751 }
2752 return NULL;
2753}
2754
115329f1 2755static void rtsp_cmd_setup(HTTPContext *c, const char *url,
2effd274
FB
2756 RTSPHeader *h)
2757{
2758 FFStream *stream;
2759 int stream_index, port;
2760 char buf[1024];
2761 char path1[1024];
2762 const char *path;
2763 HTTPContext *rtp_c;
2764 RTSPTransportField *th;
2765 struct sockaddr_in dest_addr;
2766 RTSPActionServerSetup setup;
115329f1 2767
2effd274 2768 /* find which url is asked */
6ba5cbc6 2769 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2770 path = path1;
2771 if (*path == '/')
2772 path++;
2773
2774 /* now check each stream */
2775 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
2776 if (!stream->is_feed &&
2777 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
2effd274
FB
2778 /* accept aggregate filenames only if single stream */
2779 if (!strcmp(path, stream->filename)) {
2780 if (stream->nb_streams != 1) {
2781 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
2782 return;
2783 }
2784 stream_index = 0;
2785 goto found;
2786 }
115329f1 2787
2effd274
FB
2788 for(stream_index = 0; stream_index < stream->nb_streams;
2789 stream_index++) {
115329f1 2790 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2effd274
FB
2791 stream->filename, stream_index);
2792 if (!strcmp(path, buf))
2793 goto found;
2794 }
2795 }
2796 }
2797 /* no stream found */
2798 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2799 return;
2800 found:
2801
2802 /* generate session id if needed */
611c5741 2803 if (h->session_id[0] == '\0')
1df93ae9
AB
2804 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
2805 av_random(&random_state), av_random(&random_state));
2effd274
FB
2806
2807 /* find rtp session, and create it if none found */
2808 rtp_c = find_rtp_session(h->session_id);
2809 if (!rtp_c) {
bc351386
FB
2810 /* always prefer UDP */
2811 th = find_transport(h, RTSP_PROTOCOL_RTP_UDP);
2812 if (!th) {
2813 th = find_transport(h, RTSP_PROTOCOL_RTP_TCP);
2814 if (!th) {
2815 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2816 return;
2817 }
2818 }
2819
2820 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
2821 th->protocol);
2effd274
FB
2822 if (!rtp_c) {
2823 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
2824 return;
2825 }
2826
2827 /* open input stream */
2828 if (open_input_stream(rtp_c, "") < 0) {
2829 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2830 return;
2831 }
2effd274 2832 }
115329f1 2833
2effd274
FB
2834 /* test if stream is OK (test needed because several SETUP needs
2835 to be done for a given file) */
2836 if (rtp_c->stream != stream) {
2837 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
2838 return;
2839 }
115329f1 2840
2effd274
FB
2841 /* test if stream is already set up */
2842 if (rtp_c->rtp_ctx[stream_index]) {
2843 rtsp_reply_error(c, RTSP_STATUS_STATE);
2844 return;
2845 }
2846
2847 /* check transport */
2848 th = find_transport(h, rtp_c->rtp_protocol);
115329f1 2849 if (!th || (th->protocol == RTSP_PROTOCOL_RTP_UDP &&
2effd274
FB
2850 th->client_port_min <= 0)) {
2851 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2852 return;
2853 }
2854
2855 /* setup default options */
2856 setup.transport_option[0] = '\0';
2857 dest_addr = rtp_c->from_addr;
2858 dest_addr.sin_port = htons(th->client_port_min);
115329f1 2859
2effd274 2860 /* setup stream */
bc351386 2861 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
2effd274
FB
2862 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2863 return;
2864 }
2865
2866 /* now everything is OK, so we can send the connection parameters */
2867 rtsp_reply_header(c, RTSP_STATUS_OK);
2868 /* session ID */
2869 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2870
2871 switch(rtp_c->rtp_protocol) {
2872 case RTSP_PROTOCOL_RTP_UDP:
2873 port = rtp_get_local_port(rtp_c->rtp_handles[stream_index]);
2874 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
2875 "client_port=%d-%d;server_port=%d-%d",
2876 th->client_port_min, th->client_port_min + 1,
2877 port, port + 1);
2878 break;
2879 case RTSP_PROTOCOL_RTP_TCP:
2880 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
2881 stream_index * 2, stream_index * 2 + 1);
2882 break;
2883 default:
2884 break;
2885 }
611c5741 2886 if (setup.transport_option[0] != '\0')
2effd274 2887 url_fprintf(c->pb, ";%s", setup.transport_option);
2effd274 2888 url_fprintf(c->pb, "\r\n");
115329f1 2889
2effd274
FB
2890
2891 url_fprintf(c->pb, "\r\n");
2892}
2893
2894
2895/* find an rtp connection by using the session ID. Check consistency
2896 with filename */
115329f1 2897static HTTPContext *find_rtp_session_with_url(const char *url,
2effd274
FB
2898 const char *session_id)
2899{
2900 HTTPContext *rtp_c;
2901 char path1[1024];
2902 const char *path;
94d9ad5f
GF
2903 char buf[1024];
2904 int s;
2effd274
FB
2905
2906 rtp_c = find_rtp_session(session_id);
2907 if (!rtp_c)
2908 return NULL;
2909
2910 /* find which url is asked */
6ba5cbc6 2911 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2912 path = path1;
2913 if (*path == '/')
2914 path++;
94d9ad5f
GF
2915 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
2916 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
2917 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2918 rtp_c->stream->filename, s);
2919 if(!strncmp(path, buf, sizeof(buf))) {
2920 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
2921 return rtp_c;
2922 }
2923 }
2924 return NULL;
2effd274
FB
2925}
2926
2927static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h)
2928{
2929 HTTPContext *rtp_c;
2930
2931 rtp_c = find_rtp_session_with_url(url, h->session_id);
2932 if (!rtp_c) {
2933 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2934 return;
2935 }
115329f1 2936
2effd274
FB
2937 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
2938 rtp_c->state != HTTPSTATE_WAIT_FEED &&
2939 rtp_c->state != HTTPSTATE_READY) {
2940 rtsp_reply_error(c, RTSP_STATUS_STATE);
2941 return;
2942 }
2943
e240a0bb
FB
2944#if 0
2945 /* XXX: seek in stream */
2946 if (h->range_start != AV_NOPTS_VALUE) {
2947 printf("range_start=%0.3f\n", (double)h->range_start / AV_TIME_BASE);
2948 av_seek_frame(rtp_c->fmt_in, -1, h->range_start);
2949 }
2950#endif
2951
2effd274 2952 rtp_c->state = HTTPSTATE_SEND_DATA;
115329f1 2953
2effd274
FB
2954 /* now everything is OK, so we can send the connection parameters */
2955 rtsp_reply_header(c, RTSP_STATUS_OK);
2956 /* session ID */
2957 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2958 url_fprintf(c->pb, "\r\n");
2959}
2960
2961static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h)
2962{
2963 HTTPContext *rtp_c;
2964
2965 rtp_c = find_rtp_session_with_url(url, h->session_id);
2966 if (!rtp_c) {
2967 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2968 return;
2969 }
115329f1 2970
2effd274
FB
2971 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
2972 rtp_c->state != HTTPSTATE_WAIT_FEED) {
2973 rtsp_reply_error(c, RTSP_STATUS_STATE);
2974 return;
2975 }
115329f1 2976
2effd274 2977 rtp_c->state = HTTPSTATE_READY;
1bc1cfdd 2978 rtp_c->first_pts = AV_NOPTS_VALUE;
2effd274
FB
2979 /* now everything is OK, so we can send the connection parameters */
2980 rtsp_reply_header(c, RTSP_STATUS_OK);
2981 /* session ID */
2982 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2983 url_fprintf(c->pb, "\r\n");
2984}
2985
2986static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h)
2987{
2988 HTTPContext *rtp_c;
b0b2faa7 2989 char session_id[32];
2effd274
FB
2990
2991 rtp_c = find_rtp_session_with_url(url, h->session_id);
2992 if (!rtp_c) {
2993 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2994 return;
2995 }
115329f1 2996
f7d78f36 2997 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
b0b2faa7 2998
2effd274
FB
2999 /* abort the session */
3000 close_connection(rtp_c);
3001
2effd274
FB
3002 /* now everything is OK, so we can send the connection parameters */
3003 rtsp_reply_header(c, RTSP_STATUS_OK);
3004 /* session ID */
b0b2faa7 3005 url_fprintf(c->pb, "Session: %s\r\n", session_id);
2effd274
FB
3006 url_fprintf(c->pb, "\r\n");
3007}
3008
3009
3010/********************************************************************/
3011/* RTP handling */
3012
115329f1 3013static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
bc351386
FB
3014 FFStream *stream, const char *session_id,
3015 enum RTSPProtocol rtp_protocol)
2effd274
FB
3016{
3017 HTTPContext *c = NULL;
bc351386 3018 const char *proto_str;
115329f1 3019
2effd274
FB
3020 /* XXX: should output a warning page when coming
3021 close to the connection limit */
3022 if (nb_connections >= nb_max_connections)
3023 goto fail;
115329f1 3024
2effd274
FB
3025 /* add a new connection */
3026 c = av_mallocz(sizeof(HTTPContext));
3027 if (!c)
3028 goto fail;
115329f1 3029
2effd274
FB
3030 c->fd = -1;
3031 c->poll_entry = NULL;
6edd6884 3032 c->from_addr = *from_addr;
2effd274
FB
3033 c->buffer_size = IOBUFFER_INIT_SIZE;
3034 c->buffer = av_malloc(c->buffer_size);
3035 if (!c->buffer)
3036 goto fail;
3037 nb_connections++;
3038 c->stream = stream;
f7d78f36 3039 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
2effd274
FB
3040 c->state = HTTPSTATE_READY;
3041 c->is_packetized = 1;
bc351386
FB
3042 c->rtp_protocol = rtp_protocol;
3043
2effd274 3044 /* protocol is shown in statistics */
bc351386
FB
3045 switch(c->rtp_protocol) {
3046 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
3047 proto_str = "MCAST";
3048 break;
3049 case RTSP_PROTOCOL_RTP_UDP:
3050 proto_str = "UDP";
3051 break;
3052 case RTSP_PROTOCOL_RTP_TCP:
3053 proto_str = "TCP";
3054 break;
3055 default:
3056 proto_str = "???";
3057 break;
3058 }
f7d78f36
MR
3059 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3060 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
2effd274 3061
6edd6884
FB
3062 current_bandwidth += stream->bandwidth;
3063
2effd274
FB
3064 c->next = first_http_ctx;
3065 first_http_ctx = c;
3066 return c;
115329f1 3067
2effd274
FB
3068 fail:
3069 if (c) {
3070 av_free(c->buffer);
3071 av_free(c);
3072 }
3073 return NULL;
3074}
3075
3076/* add a new RTP stream in an RTP connection (used in RTSP SETUP
bc351386 3077 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
2effd274 3078 used. */
115329f1 3079static int rtp_new_av_stream(HTTPContext *c,
bc351386
FB
3080 int stream_index, struct sockaddr_in *dest_addr,
3081 HTTPContext *rtsp_c)
2effd274
FB
3082{
3083 AVFormatContext *ctx;
3084 AVStream *st;
3085 char *ipaddr;
3086 URLContext *h;
0c1a9eda 3087 uint8_t *dummy_buf;
6edd6884 3088 char buf2[32];
bc351386 3089 int max_packet_size;
115329f1 3090
2effd274 3091 /* now we can open the relevant output stream */
bc874dae 3092 ctx = av_alloc_format_context();
2effd274
FB
3093 if (!ctx)
3094 return -1;
b156b88c 3095 ctx->oformat = guess_format("rtp", NULL, NULL);
2effd274
FB
3096
3097 st = av_mallocz(sizeof(AVStream));
3098 if (!st)
3099 goto fail;
8d931070 3100 st->codec= avcodec_alloc_context();
2effd274
FB
3101 ctx->nb_streams = 1;
3102 ctx->streams[0] = st;
3103
115329f1 3104 if (!c->stream->feed ||
611c5741 3105 c->stream->feed == c->stream)
2effd274 3106 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
611c5741 3107 else
115329f1 3108 memcpy(st,
2effd274
FB
3109 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3110 sizeof(AVStream));
57dbe08b 3111 st->priv_data = NULL;
115329f1 3112
bc351386
FB
3113 /* build destination RTP address */
3114 ipaddr = inet_ntoa(dest_addr->sin_addr);
3115
3116 switch(c->rtp_protocol) {
3117 case RTSP_PROTOCOL_RTP_UDP:
3118 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
3119 /* RTP/UDP case */
115329f1 3120
6edd6884
FB
3121 /* XXX: also pass as parameter to function ? */
3122 if (c->stream->is_multicast) {
3123 int ttl;
3124 ttl = c->stream->multicast_ttl;
3125 if (!ttl)
3126 ttl = 16;
3127 snprintf(ctx->filename, sizeof(ctx->filename),
115329f1 3128 "rtp://%s:%d?multicast=1&ttl=%d",
6edd6884
FB
3129 ipaddr, ntohs(dest_addr->sin_port), ttl);
3130 } else {
3131 snprintf(ctx->filename, sizeof(ctx->filename),
3132 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3133 }
2effd274
FB
3134
3135 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3136 goto fail;
3137 c->rtp_handles[stream_index] = h;
bc351386
FB
3138 max_packet_size = url_get_max_packet_size(h);
3139 break;
3140 case RTSP_PROTOCOL_RTP_TCP:
3141 /* RTP/TCP case */
3142 c->rtsp_c = rtsp_c;
3143 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3144 break;
3145 default:
2effd274
FB
3146 goto fail;
3147 }
3148
bc351386 3149 http_log("%s:%d - - [%s] \"PLAY %s/streamid=%d %s\"\n",
115329f1
DB
3150 ipaddr, ntohs(dest_addr->sin_port),
3151 ctime1(buf2),
bc351386 3152 c->stream->filename, stream_index, c->protocol);
6edd6884 3153
2effd274 3154 /* normally, no packets should be output here, but the packet size may be checked */
bc351386 3155 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
2effd274
FB
3156 /* XXX: close stream */
3157 goto fail;
3158 }
3c27199b 3159 av_set_parameters(ctx, NULL);
2effd274
FB
3160 if (av_write_header(ctx) < 0) {
3161 fail:
3162 if (h)
3163 url_close(h);
3164 av_free(ctx);
3165 return -1;
3166 }
3167 url_close_dyn_buf(&ctx->pb, &dummy_buf);
3168 av_free(dummy_buf);
115329f1 3169
2effd274
FB
3170 c->rtp_ctx[stream_index] = ctx;
3171 return 0;
3172}
3173
3174/********************************************************************/
3175/* ffserver initialization */
3176
b29f97d1 3177static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec)
2effd274
FB
3178{
3179 AVStream *fst;
3180
3181 fst = av_mallocz(sizeof(AVStream));
3182 if (!fst)
3183 return NULL;
8d931070 3184 fst->codec= avcodec_alloc_context();
2effd274 3185 fst->priv_data = av_mallocz(sizeof(FeedData));
01f4895c
MN
3186 memcpy(fst->codec, codec, sizeof(AVCodecContext));
3187 fst->codec->coded_frame = &dummy_frame;
d445a7e9 3188 fst->index = stream->nb_streams;
7c054ea7 3189 av_set_pts_info(fst, 33, 1, 90000);
2effd274
FB
3190 stream->streams[stream->nb_streams++] = fst;
3191 return fst;
3192}
3193
85f07f22 3194/* return the stream number in the feed */
b29f97d1 3195static int add_av_stream(FFStream *feed, AVStream *st)
85f07f22
FB
3196{
3197 AVStream *fst;
3198 AVCodecContext *av, *av1;
3199 int i;
3200
01f4895c 3201 av = st->codec;
85f07f22
FB
3202 for(i=0;i<feed->nb_streams;i++) {
3203 st = feed->streams[i];
01f4895c 3204 av1 = st->codec;
f747e6d3
PG
3205 if (av1->codec_id == av->codec_id &&
3206 av1->codec_type == av->codec_type &&
85f07f22
FB
3207 av1->bit_rate == av->bit_rate) {
3208
3209 switch(av->codec_type) {
3210 case CODEC_TYPE_AUDIO:
3211 if (av1->channels == av->channels &&
3212 av1->sample_rate == av->sample_rate)
3213 goto found;
3214 break;
3215 case CODEC_TYPE_VIDEO:
3216 if (av1->width == av->width &&
3217 av1->height == av->height &&
c0df9d75
MN
3218 av1->time_base.den == av->time_base.den &&
3219 av1->time_base.num == av->time_base.num &&
85f07f22
FB
3220 av1->gop_size == av->gop_size)
3221 goto found;
3222 break;
f747e6d3 3223 default:
0f4e8165 3224 abort();
85f07f22
FB
3225 }
3226 }
3227 }
115329f1 3228
2effd274 3229 fst = add_av_stream1(feed, av);
85f07f22
FB
3230 if (!fst)
3231 return -1;
85f07f22
FB
3232 return feed->nb_streams - 1;
3233 found:
3234 return i;
3235}
3236
b29f97d1 3237static void remove_stream(FFStream *stream)
2effd274
FB
3238{
3239 FFStream **ps;
3240 ps = &first_stream;
3241 while (*ps != NULL) {
611c5741 3242 if (*ps == stream)
2effd274 3243 *ps = (*ps)->next;
611c5741 3244 else
2effd274 3245 ps = &(*ps)->next;
2effd274
FB
3246 }
3247}
3248
0fa45e19 3249/* specific mpeg4 handling : we extract the raw parameters */
b29f97d1 3250static void extract_mpeg4_header(AVFormatContext *infile)
0fa45e19
FB
3251{
3252 int mpeg4_count, i, size;
3253 AVPacket pkt;
3254 AVStream *st;
0c1a9eda 3255 const uint8_t *p;
0fa45e19
FB
3256
3257 mpeg4_count = 0;
3258 for(i=0;i<infile->nb_streams;i++) {
3259 st = infile->streams[i];
01f4895c
MN
3260 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3261 st->codec->extradata_size == 0) {
0fa45e19
FB
3262 mpeg4_count++;
3263 }
3264 }
3265 if (!mpeg4_count)
3266 return;
3267
d445a7e9 3268 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
0fa45e19
FB
3269 while (mpeg4_count > 0) {
3270 if (av_read_packet(infile, &pkt) < 0)
3271 break;
3272 st = infile->streams[pkt.stream_index];
01f4895c
MN
3273 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3274 st->codec->extradata_size == 0) {
3275 av_freep(&st->codec->extradata);
0fa45e19
FB
3276 /* fill extradata with the header */
3277 /* XXX: we make hard suppositions here ! */
3278 p = pkt.data;
3279 while (p < pkt.data + pkt.size - 4) {
3280 /* stop when vop header is found */
115329f1 3281 if (p[0] == 0x00 && p[1] == 0x00 &&
0fa45e19
FB
3282 p[2] == 0x01 && p[3] == 0xb6) {
3283 size = p - pkt.data;
750f0e1f 3284 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
01f4895c
MN
3285 st->codec->extradata = av_malloc(size);
3286 st->codec->extradata_size = size;
3287 memcpy(st->codec->extradata, pkt.data, size);
0fa45e19
FB
3288 break;
3289 }
3290 p++;
3291 }
3292 mpeg4_count--;
3293 }
3294 av_free_packet(&pkt);
3295 }
3296}
3297
2effd274 3298/* compute the needed AVStream for each file */
b29f97d1 3299static void build_file_streams(void)
2effd274
FB
3300{
3301 FFStream *stream, *stream_next;
3302 AVFormatContext *infile;
3303 int i;
3304
3305 /* gather all streams */
3306 for(stream = first_stream; stream != NULL; stream = stream_next) {
3307 stream_next = stream->next;
3308 if (stream->stream_type == STREAM_TYPE_LIVE &&
3309 !stream->feed) {
3310 /* the stream comes from a file */
3311 /* try to open the file */
3312 /* open stream */
e240a0bb 3313 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
25e3e53d 3314 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
e240a0bb
FB
3315 /* specific case : if transport stream output to RTP,
3316 we use a raw transport stream reader */
3317 stream->ap_in->mpeg2ts_raw = 1;
3318 stream->ap_in->mpeg2ts_compute_pcr = 1;
3319 }
115329f1
DB
3320
3321 if (av_open_input_file(&infile, stream->feed_filename,
e240a0bb 3322 stream->ifmt, 0, stream->ap_in) < 0) {
2effd274
FB
3323 http_log("%s not found", stream->feed_filename);
3324 /* remove stream (no need to spend more time on it) */
3325 fail:
3326 remove_stream(stream);
3327 } else {
3328 /* find all the AVStreams inside and reference them in
3329 'stream' */
3330 if (av_find_stream_info(infile) < 0) {
115329f1 3331 http_log("Could not find codec parameters from '%s'",
2effd274
FB
3332 stream->feed_filename);
3333 av_close_input_file(infile);
3334 goto fail;
3335 }
0fa45e19
FB
3336 extract_mpeg4_header(infile);
3337
611c5741 3338 for(i=0;i<infile->nb_streams;i++)
01f4895c 3339 add_av_stream1(stream, infile->streams[i]->codec);
611c5741 3340
2effd274
FB
3341 av_close_input_file(infile);
3342 }
3343 }
3344 }
3345}
3346
85f07f22 3347/* compute the needed AVStream for each feed */
b29f97d1 3348static void build_feed_streams(void)
85f07f22
FB
3349{
3350 FFStream *stream, *feed;
3351 int i;
3352
3353 /* gather all streams */
3354 for(stream = first_stream; stream != NULL; stream = stream->next) {
3355 feed = stream->feed;
3356 if (feed) {
3357 if (!stream->is_feed) {
2effd274 3358 /* we handle a stream coming from a feed */
611c5741 3359 for(i=0;i<stream->nb_streams;i++)
85f07f22 3360 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
cde25790
PG
3361 }
3362 }
3363 }
3364
3365 /* gather all streams */
3366 for(stream = first_stream; stream != NULL; stream = stream->next) {
3367 feed = stream->feed;
3368 if (feed) {
3369 if (stream->is_feed) {
611c5741 3370 for(i=0;i<stream->nb_streams;i++)
85f07f22 3371 stream->feed_streams[i] = i;
85f07f22
FB
3372 }
3373 }
3374 }
3375
3376 /* create feed files if needed */
3377 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3378 int fd;
3379
59eb2ed1
PG
3380 if (url_exist(feed->feed_filename)) {
3381 /* See if it matches */
3382 AVFormatContext *s;
3383 int matches = 0;
3384
3385 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3386 /* Now see if it matches */
3387 if (s->nb_streams == feed->nb_streams) {
3388 matches = 1;
3389 for(i=0;i<s->nb_streams;i++) {
3390 AVStream *sf, *ss;