x86: cpu: clean up check for cpuid instruction support
[libav.git] / avserver.c
CommitLineData
85f07f22
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1/*
2 * Multiple format streaming server
773a21b8 3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
85f07f22 4 *
2912e87a 5 * This file is part of Libav.
b78e7197 6 *
2912e87a 7 * Libav is free software; you can redistribute it and/or
773a21b8
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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 *
2912e87a 12 * Libav is distributed in the hope that it will be useful,
85f07f22 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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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
2912e87a 18 * License along with Libav; 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"
b250f9c6 23#if !HAVE_CLOSESOCKET
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24#define closesocket close
25#endif
26#include <string.h>
27#include <stdlib.h>
245976da 28#include "libavformat/avformat.h"
b263bf66 29// FIXME those are internal headers, avserver _really_ shouldn't use them
3ee53dab 30#include "libavformat/ffm.h"
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31#include "libavformat/network.h"
32#include "libavformat/os_support.h"
302879cb 33#include "libavformat/rtpdec.h"
245976da 34#include "libavformat/rtsp.h"
403ee835 35#include "libavformat/avio_internal.h"
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36#include "libavformat/internal.h"
37#include "libavformat/url.h"
38
959da985 39#include "libavutil/avstring.h"
042819c5 40#include "libavutil/lfg.h"
d2d67e42 41#include "libavutil/dict.h"
0ebcdf5c 42#include "libavutil/mathematics.h"
042819c5 43#include "libavutil/random_seed.h"
737eb597 44#include "libavutil/parseutils.h"
41d0eb1c 45#include "libavutil/opt.h"
85f07f22 46#include <stdarg.h>
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47#include <unistd.h>
48#include <fcntl.h>
49#include <sys/ioctl.h>
b250f9c6 50#if HAVE_POLL_H
f8cda19e 51#include <poll.h>
b0c858d8 52#endif
85f07f22 53#include <errno.h>
85f07f22 54#include <time.h>
5eb765ef 55#include <sys/wait.h>
85f07f22 56#include <signal.h>
b250f9c6 57#if HAVE_DLFCN_H
2effd274 58#include <dlfcn.h>
6638d424 59#endif
2effd274 60
4ce5df08 61#include "cmdutils.h"
85f07f22 62
4d58e4cb 63const char program_name[] = "avserver";
ea9c581f 64const int program_birth_year = 2000;
86074ed1 65
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66static const OptionDef options[];
67
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68enum HTTPState {
69 HTTPSTATE_WAIT_REQUEST,
70 HTTPSTATE_SEND_HEADER,
71 HTTPSTATE_SEND_DATA_HEADER,
2effd274 72 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
85f07f22 73 HTTPSTATE_SEND_DATA_TRAILER,
115329f1 74 HTTPSTATE_RECEIVE_DATA,
2effd274 75 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
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76 HTTPSTATE_READY,
77
78 RTSPSTATE_WAIT_REQUEST,
79 RTSPSTATE_SEND_REPLY,
bc351386 80 RTSPSTATE_SEND_PACKET,
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81};
82
9507a12e 83static const char *http_state[] = {
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84 "HTTP_WAIT_REQUEST",
85 "HTTP_SEND_HEADER",
86
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87 "SEND_DATA_HEADER",
88 "SEND_DATA",
89 "SEND_DATA_TRAILER",
90 "RECEIVE_DATA",
91 "WAIT_FEED",
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92 "READY",
93
94 "RTSP_WAIT_REQUEST",
95 "RTSP_SEND_REPLY",
bc351386 96 "RTSP_SEND_PACKET",
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97};
98
aff88101 99#define MAX_STREAMS 20
aff88101 100
cde25790 101#define IOBUFFER_INIT_SIZE 8192
85f07f22 102
85f07f22 103/* timeouts are in ms */
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104#define HTTP_REQUEST_TIMEOUT (15 * 1000)
105#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
106
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107#define SYNC_TIMEOUT (10 * 1000)
108
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109typedef struct RTSPActionServerSetup {
110 uint32_t ipaddr;
111 char transport_option[512];
112} RTSPActionServerSetup;
113
5eb765ef 114typedef struct {
0c1a9eda 115 int64_t count1, count2;
c3f58185 116 int64_t time1, time2;
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117} DataRateData;
118
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119/* context associated with one connection */
120typedef struct HTTPContext {
121 enum HTTPState state;
122 int fd; /* socket file descriptor */
123 struct sockaddr_in from_addr; /* origin */
124 struct pollfd *poll_entry; /* used when polling */
c3f58185 125 int64_t timeout;
0c1a9eda 126 uint8_t *buffer_ptr, *buffer_end;
85f07f22 127 int http_error;
edfdd798 128 int post;
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129 int chunked_encoding;
130 int chunk_size; /* 0 if it needs to be read */
85f07f22 131 struct HTTPContext *next;
42a63c6a 132 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
0c1a9eda 133 int64_t data_count;
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134 /* feed input */
135 int feed_fd;
136 /* input format handling */
137 AVFormatContext *fmt_in;
c3f58185 138 int64_t start_time; /* In milliseconds - this wraps fairly often */
0c1a9eda 139 int64_t first_pts; /* initial pts value */
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140 int64_t cur_pts; /* current pts value from the stream in us */
141 int64_t cur_frame_duration; /* duration of the current frame in us */
142 int cur_frame_bytes; /* output frame size, needed to compute
143 the time at which we send each
144 packet */
145 int pts_stream_index; /* stream we choose as clock reference */
146 int64_t cur_clock; /* current clock reference value in us */
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147 /* output format handling */
148 struct FFStream *stream;
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149 /* -1 is invalid stream */
150 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
151 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
152 int switch_pending;
2effd274 153 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
85f07f22 154 int last_packet_sent; /* true if last data packet was sent */
7434ba6d 155 int suppress_log;
5eb765ef 156 DataRateData datarate;
3120d2a2 157 int wmp_client_id;
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158 char protocol[16];
159 char method[16];
160 char url[128];
cde25790 161 int buffer_size;
0c1a9eda 162 uint8_t *buffer;
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163 int is_packetized; /* if true, the stream is packetized */
164 int packet_stream_index; /* current stream for output in state machine */
115329f1 165
2effd274 166 /* RTSP state specific */
0c1a9eda 167 uint8_t *pb_buffer; /* XXX: use that in all the code */
ae628ec1 168 AVIOContext *pb;
2effd274 169 int seq; /* RTSP sequence number */
115329f1 170
2effd274 171 /* RTP state specific */
90abbdba 172 enum RTSPLowerTransport rtp_protocol;
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173 char session_id[32]; /* session id */
174 AVFormatContext *rtp_ctx[MAX_STREAMS];
e240a0bb 175
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176 /* RTP/UDP specific */
177 URLContext *rtp_handles[MAX_STREAMS];
178
179 /* RTP/TCP specific */
180 struct HTTPContext *rtsp_c;
181 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
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182} HTTPContext;
183
184/* each generated stream is described here */
185enum StreamType {
186 STREAM_TYPE_LIVE,
187 STREAM_TYPE_STATUS,
cde25790 188 STREAM_TYPE_REDIRECT,
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189};
190
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191enum IPAddressAction {
192 IP_ALLOW = 1,
193 IP_DENY,
194};
195
196typedef struct IPAddressACL {
197 struct IPAddressACL *next;
198 enum IPAddressAction action;
efa04ce2 199 /* These are in host order */
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200 struct in_addr first;
201 struct in_addr last;
202} IPAddressACL;
203
4d58e4cb 204/* description of each stream of the avserver.conf file */
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205typedef struct FFStream {
206 enum StreamType stream_type;
207 char filename[1024]; /* stream filename */
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208 struct FFStream *feed; /* feed we are using (can be null if
209 coming from file) */
50f2dfad 210 AVDictionary *in_opts; /* input parameters */
e240a0bb 211 AVInputFormat *ifmt; /* if non NULL, force input format */
bd7cf6ad 212 AVOutputFormat *fmt;
8256c0a3 213 IPAddressACL *acl;
58f48adb 214 char dynamic_acl[1024];
85f07f22 215 int nb_streams;
42a63c6a 216 int prebuffer; /* Number of millseconds early to start */
c3f58185 217 int64_t max_time; /* Number of milliseconds to run */
79c4ea3c 218 int send_on_key;
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219 AVStream *streams[MAX_STREAMS];
220 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
221 char feed_filename[1024]; /* file name of the feed storage, or
222 input file name for a stream */
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223 char author[512];
224 char title[512];
225 char copyright[512];
226 char comment[512];
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227 pid_t pid; /* of avconv process */
228 time_t pid_start; /* of avconv process */
cde25790 229 char **child_argv;
85f07f22 230 struct FFStream *next;
177d2564 231 unsigned bandwidth; /* bandwidth, in kbits/s */
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232 /* RTSP options */
233 char *rtsp_option;
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234 /* multicast specific */
235 int is_multicast;
236 struct in_addr multicast_ip;
237 int multicast_port; /* first port used for multicast */
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238 int multicast_ttl;
239 int loop; /* if true, send the stream in loops (only meaningful if file) */
829ac53d 240
85f07f22 241 /* feed specific */
2effd274 242 int feed_opened; /* true if someone is writing to the feed */
85f07f22 243 int is_feed; /* true if it is a feed */
e322ea48 244 int readonly; /* True if writing is prohibited to the file */
861ec13a 245 int truncate; /* True if feeder connection truncate the feed file */
a6e14edd 246 int conns_served;
0c1a9eda 247 int64_t bytes_served;
6b0bdc75 248 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
8bfb108b 249 int64_t feed_write_index; /* current write position in feed (it wraps around) */
0c1a9eda 250 int64_t feed_size; /* current size of feed */
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251 struct FFStream *next_feed;
252} FFStream;
253
254typedef struct FeedData {
255 long long data_count;
8bfb108b 256 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
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257} FeedData;
258
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259static struct sockaddr_in my_http_addr;
260static struct sockaddr_in my_rtsp_addr;
2effd274 261
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262static char logfilename[1024];
263static HTTPContext *first_http_ctx;
264static FFStream *first_feed; /* contains only feeds */
265static FFStream *first_stream; /* contains all streams, including feeds */
85f07f22 266
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267static void new_connection(int server_fd, int is_rtsp);
268static void close_connection(HTTPContext *c);
269
270/* HTTP handling */
271static int handle_connection(HTTPContext *c);
85f07f22 272static int http_parse_request(HTTPContext *c);
5eb765ef 273static int http_send_data(HTTPContext *c);
dca21085 274static void compute_status(HTTPContext *c);
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275static int open_input_stream(HTTPContext *c, const char *info);
276static int http_start_receive_data(HTTPContext *c);
277static int http_receive_data(HTTPContext *c);
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278
279/* RTSP handling */
280static int rtsp_parse_request(HTTPContext *c);
281static void rtsp_cmd_describe(HTTPContext *c, const char *url);
0df65975 282static void rtsp_cmd_options(HTTPContext *c, const char *url);
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283static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
284static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
285static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
286static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
2effd274 287
829ac53d 288/* SDP handling */
115329f1 289static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
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290 struct in_addr my_ip);
291
2effd274 292/* RTP handling */
115329f1 293static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
bc351386 294 FFStream *stream, const char *session_id,
90abbdba 295 enum RTSPLowerTransport rtp_protocol);
115329f1 296static int rtp_new_av_stream(HTTPContext *c,
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297 int stream_index, struct sockaddr_in *dest_addr,
298 HTTPContext *rtsp_c);
85f07f22 299
cde25790 300static const char *my_program_name;
d6562d2c 301static const char *my_program_dir;
cde25790 302
4d58e4cb 303static const char *config_filename = "/etc/avserver.conf";
6675a5bf 304
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305static int avserver_debug;
306static int avserver_daemon;
2ac887ba 307static int no_launch;
5eb765ef 308static int need_to_start_children;
2ac887ba 309
1c9ff179
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310/* maximum number of simultaneous HTTP connections */
311static unsigned int nb_max_http_connections = 2000;
4af92de6
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312static unsigned int nb_max_connections = 5;
313static unsigned int nb_connections;
85f07f22 314
f69bb0cc 315static uint64_t max_bandwidth = 1000;
1ad8289e 316static uint64_t current_bandwidth;
42a63c6a 317
c3f58185 318static int64_t cur_time; // Making this global saves on passing it around everywhere
5eb765ef 319
042819c5 320static AVLFG random_state;
1df93ae9 321
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322static FILE *logfile = NULL;
323
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324void exit_program(int ret)
325{
326 exit(ret);
327}
328
4d58e4cb 329/* FIXME: make avserver work with IPv6 */
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MR
330/* resolve host with also IP address parsing */
331static int resolve_host(struct in_addr *sin_addr, const char *hostname)
332{
333
334 if (!ff_inet_aton(hostname, sin_addr)) {
335#if HAVE_GETADDRINFO
336 struct addrinfo *ai, *cur;
a92be9b8 337 struct addrinfo hints = { 0 };
22f73dcc
MR
338 hints.ai_family = AF_INET;
339 if (getaddrinfo(hostname, NULL, &hints, &ai))
340 return -1;
341 /* getaddrinfo returns a linked list of addrinfo structs.
342 * Even if we set ai_family = AF_INET above, make sure
343 * that the returned one actually is of the correct type. */
344 for (cur = ai; cur; cur = cur->ai_next) {
345 if (cur->ai_family == AF_INET) {
346 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
347 freeaddrinfo(ai);
348 return 0;
349 }
350 }
351 freeaddrinfo(ai);
352 return -1;
353#else
354 struct hostent *hp;
355 hp = gethostbyname(hostname);
356 if (!hp)
357 return -1;
358 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
359#endif
360 }
361 return 0;
362}
363
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BC
364static char *ctime1(char *buf2)
365{
366 time_t ti;
367 char *p;
368
369 ti = time(NULL);
370 p = ctime(&ti);
371 strcpy(buf2, p);
372 p = buf2 + strlen(p) - 1;
373 if (*p == '\n')
374 *p = '\0';
375 return buf2;
376}
377
bcd3ce59 378static void http_vlog(const char *fmt, va_list vargs)
85f07f22 379{
124ed1c0 380 static int print_prefix = 1;
7434ba6d 381 if (logfile) {
124ed1c0 382 if (print_prefix) {
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383 char buf[32];
384 ctime1(buf);
385 fprintf(logfile, "%s ", buf);
124ed1c0
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386 }
387 print_prefix = strstr(fmt, "\n") != NULL;
bcd3ce59 388 vfprintf(logfile, fmt, vargs);
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389 fflush(logfile);
390 }
bcd3ce59
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391}
392
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393#ifdef __GNUC__
394__attribute__ ((format (printf, 1, 2)))
395#endif
396static void http_log(const char *fmt, ...)
bcd3ce59
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397{
398 va_list vargs;
399 va_start(vargs, fmt);
400 http_vlog(fmt, vargs);
401 va_end(vargs);
402}
403
404static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
405{
406 static int print_prefix = 1;
407 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
49ceb58b 408 if (level > av_log_get_level())
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409 return;
410 if (print_prefix && avc)
59e7894c 411 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
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412 print_prefix = strstr(fmt, "\n") != NULL;
413 http_vlog(fmt, vargs);
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414}
415
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416static void log_connection(HTTPContext *c)
417{
115329f1 418 if (c->suppress_log)
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419 return;
420
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421 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
422 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
6edd6884 423 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
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424}
425
0c1a9eda 426static void update_datarate(DataRateData *drd, int64_t count)
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427{
428 if (!drd->time1 && !drd->count1) {
429 drd->time1 = drd->time2 = cur_time;
430 drd->count1 = drd->count2 = count;
eeffbdea 431 } else if (cur_time - drd->time2 > 5000) {
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432 drd->time1 = drd->time2;
433 drd->count1 = drd->count2;
434 drd->time2 = cur_time;
435 drd->count2 = count;
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436 }
437}
438
439/* In bytes per second */
0c1a9eda 440static int compute_datarate(DataRateData *drd, int64_t count)
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441{
442 if (cur_time == drd->time1)
443 return 0;
115329f1 444
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445 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
446}
447
a782f209 448
cde25790
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449static void start_children(FFStream *feed)
450{
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PG
451 if (no_launch)
452 return;
453
cde25790 454 for (; feed; feed = feed->next) {
5eb765ef
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455 if (feed->child_argv && !feed->pid) {
456 feed->pid_start = time(0);
457
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458 feed->pid = fork();
459
460 if (feed->pid < 0) {
b4befb99 461 http_log("Unable to create children\n");
cde25790
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462 exit(1);
463 }
464 if (!feed->pid) {
465 /* In child */
466 char pathname[1024];
467 char *slash;
468 int i;
469
40444a59
SS
470 av_strlcpy(pathname, my_program_name, sizeof(pathname));
471
472 slash = strrchr(pathname, '/');
473 if (!slash)
474 slash = pathname;
475 else
476 slash++;
20566eb0 477 strcpy(slash, "avconv");
40444a59 478
da9cea77 479 http_log("Launch command line: ");
8bf61f5b
SS
480 http_log("%s ", pathname);
481 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
482 http_log("%s ", feed->child_argv[i]);
483 http_log("\n");
40444a59 484
611c5741 485 for (i = 3; i < 256; i++)
5eb765ef 486 close(i);
cde25790 487
4d58e4cb 488 if (!avserver_debug) {
2ac887ba 489 i = open("/dev/null", O_RDWR);
3296409d 490 if (i != -1) {
2ac887ba 491 dup2(i, 0);
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BC
492 dup2(i, 1);
493 dup2(i, 2);
5eb765ef 494 close(i);
3296409d 495 }
2ac887ba 496 }
cde25790 497
d6562d2c
PG
498 /* This is needed to make relative pathnames work */
499 chdir(my_program_dir);
500
a4d70941
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501 signal(SIGPIPE, SIG_DFL);
502
cde25790
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503 execvp(pathname, feed->child_argv);
504
505 _exit(1);
506 }
507 }
508 }
7434ba6d
PG
509}
510
2effd274
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511/* open a listening socket */
512static int socket_open_listen(struct sockaddr_in *my_addr)
85f07f22 513{
2effd274 514 int server_fd, tmp;
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515
516 server_fd = socket(AF_INET,SOCK_STREAM,0);
517 if (server_fd < 0) {
518 perror ("socket");
519 return -1;
520 }
115329f1 521
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522 tmp = 1;
523 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
524
f5e717f3 525 my_addr->sin_family = AF_INET;
2effd274 526 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
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PG
527 char bindmsg[32];
528 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
529 perror (bindmsg);
d96633bb 530 closesocket(server_fd);
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531 return -1;
532 }
115329f1 533
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534 if (listen (server_fd, 5) < 0) {
535 perror ("listen");
d96633bb 536 closesocket(server_fd);
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537 return -1;
538 }
ba472aaf 539 ff_socket_nonblock(server_fd, 1);
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540
541 return server_fd;
542}
543
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544/* start all multicast streams */
545static void start_multicast(void)
546{
547 FFStream *stream;
548 char session_id[32];
549 HTTPContext *rtp_c;
550 struct sockaddr_in dest_addr;
551 int default_port, stream_index;
552
553 default_port = 6000;
554 for(stream = first_stream; stream != NULL; stream = stream->next) {
555 if (stream->is_multicast) {
556 /* open the RTP connection */
1df93ae9 557 snprintf(session_id, sizeof(session_id), "%08x%08x",
042819c5 558 av_lfg_get(&random_state), av_lfg_get(&random_state));
6edd6884
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559
560 /* choose a port if none given */
561 if (stream->multicast_port == 0) {
562 stream->multicast_port = default_port;
563 default_port += 100;
564 }
565
566 dest_addr.sin_family = AF_INET;
567 dest_addr.sin_addr = stream->multicast_ip;
568 dest_addr.sin_port = htons(stream->multicast_port);
569
115329f1 570 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
90abbdba 571 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
611c5741 572 if (!rtp_c)
6edd6884 573 continue;
611c5741 574
6edd6884 575 if (open_input_stream(rtp_c, "") < 0) {
b4befb99
BC
576 http_log("Could not open input stream for stream '%s'\n",
577 stream->filename);
6edd6884
FB
578 continue;
579 }
580
6edd6884 581 /* open each RTP stream */
115329f1 582 for(stream_index = 0; stream_index < stream->nb_streams;
6edd6884 583 stream_index++) {
115329f1 584 dest_addr.sin_port = htons(stream->multicast_port +
6edd6884 585 2 * stream_index);
bc351386 586 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
b4befb99
BC
587 http_log("Could not open output stream '%s/streamid=%d'\n",
588 stream->filename, stream_index);
0fa45e19 589 exit(1);
6edd6884
FB
590 }
591 }
592
593 /* change state to send data */
594 rtp_c->state = HTTPSTATE_SEND_DATA;
595 }
596 }
597}
2effd274
FB
598
599/* main loop of the http server */
600static int http_server(void)
601{
d2a1ea1d
BC
602 int server_fd = 0, rtsp_server_fd = 0;
603 int ret, delay, delay1;
1c9ff179 604 struct pollfd *poll_table, *poll_entry;
2effd274
FB
605 HTTPContext *c, *c_next;
606
a7f361eb 607 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
1c9ff179
SS
608 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
609 return -1;
610 }
611
d2a1ea1d 612 if (my_http_addr.sin_port) {
2b9cd1e7
BC
613 server_fd = socket_open_listen(&my_http_addr);
614 if (server_fd < 0)
615 return -1;
d2a1ea1d 616 }
85f07f22 617
d2a1ea1d 618 if (my_rtsp_addr.sin_port) {
2b9cd1e7
BC
619 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
620 if (rtsp_server_fd < 0)
621 return -1;
d2a1ea1d
BC
622 }
623
624 if (!rtsp_server_fd && !server_fd) {
625 http_log("HTTP and RTSP disabled.\n");
626 return -1;
627 }
115329f1 628
4d58e4cb 629 http_log("AVserver started.\n");
85f07f22 630
cde25790
PG
631 start_children(first_feed);
632
6edd6884
FB
633 start_multicast();
634
85f07f22
FB
635 for(;;) {
636 poll_entry = poll_table;
d2a1ea1d 637 if (server_fd) {
2b9cd1e7
BC
638 poll_entry->fd = server_fd;
639 poll_entry->events = POLLIN;
640 poll_entry++;
d2a1ea1d
BC
641 }
642 if (rtsp_server_fd) {
2b9cd1e7
BC
643 poll_entry->fd = rtsp_server_fd;
644 poll_entry->events = POLLIN;
645 poll_entry++;
d2a1ea1d 646 }
2effd274 647
85f07f22
FB
648 /* wait for events on each HTTP handle */
649 c = first_http_ctx;
2effd274 650 delay = 1000;
85f07f22
FB
651 while (c != NULL) {
652 int fd;
653 fd = c->fd;
654 switch(c->state) {
2effd274
FB
655 case HTTPSTATE_SEND_HEADER:
656 case RTSPSTATE_SEND_REPLY:
bc351386 657 case RTSPSTATE_SEND_PACKET:
85f07f22
FB
658 c->poll_entry = poll_entry;
659 poll_entry->fd = fd;
2effd274 660 poll_entry->events = POLLOUT;
85f07f22
FB
661 poll_entry++;
662 break;
85f07f22
FB
663 case HTTPSTATE_SEND_DATA_HEADER:
664 case HTTPSTATE_SEND_DATA:
665 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
666 if (!c->is_packetized) {
667 /* for TCP, we output as much as we can (may need to put a limit) */
668 c->poll_entry = poll_entry;
669 poll_entry->fd = fd;
670 poll_entry->events = POLLOUT;
671 poll_entry++;
672 } else {
4d58e4cb 673 /* when avserver is doing the timing, we work by
e240a0bb
FB
674 looking at which packet need to be sent every
675 10 ms */
676 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
677 if (delay1 < delay)
678 delay = delay1;
2effd274 679 }
85f07f22 680 break;
2effd274 681 case HTTPSTATE_WAIT_REQUEST:
85f07f22 682 case HTTPSTATE_RECEIVE_DATA:
85f07f22 683 case HTTPSTATE_WAIT_FEED:
2effd274 684 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
685 /* need to catch errors */
686 c->poll_entry = poll_entry;
687 poll_entry->fd = fd;
a6e14edd 688 poll_entry->events = POLLIN;/* Maybe this will work */
85f07f22
FB
689 poll_entry++;
690 break;
691 default:
692 c->poll_entry = NULL;
693 break;
694 }
695 c = c->next;
696 }
697
698 /* wait for an event on one connection. We poll at least every
699 second to handle timeouts */
700 do {
2effd274 701 ret = poll(poll_table, poll_entry - poll_table, delay);
28c4741a
MS
702 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
703 ff_neterrno() != AVERROR(EINTR))
53e2f9ca 704 return -1;
e8d658df 705 } while (ret < 0);
115329f1 706
c3f58185 707 cur_time = av_gettime() / 1000;
85f07f22 708
5eb765ef
PG
709 if (need_to_start_children) {
710 need_to_start_children = 0;
711 start_children(first_feed);
712 }
713
85f07f22 714 /* now handle the events */
2effd274
FB
715 for(c = first_http_ctx; c != NULL; c = c_next) {
716 c_next = c->next;
717 if (handle_connection(c) < 0) {
85f07f22 718 /* close and free the connection */
7434ba6d 719 log_connection(c);
2effd274 720 close_connection(c);
85f07f22
FB
721 }
722 }
723
85f07f22 724 poll_entry = poll_table;
d2a1ea1d 725 if (server_fd) {
2b9cd1e7
BC
726 /* new HTTP connection request ? */
727 if (poll_entry->revents & POLLIN)
728 new_connection(server_fd, 0);
729 poll_entry++;
d2a1ea1d
BC
730 }
731 if (rtsp_server_fd) {
2b9cd1e7
BC
732 /* new RTSP connection request ? */
733 if (poll_entry->revents & POLLIN)
734 new_connection(rtsp_server_fd, 1);
d2a1ea1d 735 }
85f07f22
FB
736 }
737}
738
2effd274
FB
739/* start waiting for a new HTTP/RTSP request */
740static void start_wait_request(HTTPContext *c, int is_rtsp)
85f07f22 741{
2effd274
FB
742 c->buffer_ptr = c->buffer;
743 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
744
745 if (is_rtsp) {
746 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
747 c->state = RTSPSTATE_WAIT_REQUEST;
748 } else {
749 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
750 c->state = HTTPSTATE_WAIT_REQUEST;
751 }
752}
753
0bdd8b85
BC
754static void http_send_too_busy_reply(int fd)
755{
756 char buffer[300];
757 int len = snprintf(buffer, sizeof(buffer),
2a22187f 758 "HTTP/1.0 503 Server too busy\r\n"
0bdd8b85
BC
759 "Content-type: text/html\r\n"
760 "\r\n"
761 "<html><head><title>Too busy</title></head><body>\r\n"
762 "<p>The server is too busy to serve your request at this time.</p>\r\n"
763 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
764 "</body></html>\r\n",
765 nb_connections, nb_max_connections);
766 send(fd, buffer, len, 0);
767}
768
769
2effd274
FB
770static void new_connection(int server_fd, int is_rtsp)
771{
772 struct sockaddr_in from_addr;
773 int fd, len;
774 HTTPContext *c = NULL;
775
776 len = sizeof(from_addr);
115329f1 777 fd = accept(server_fd, (struct sockaddr *)&from_addr,
2effd274 778 &len);
050056d0
BC
779 if (fd < 0) {
780 http_log("error during accept %s\n", strerror(errno));
2effd274 781 return;
050056d0 782 }
ba472aaf 783 ff_socket_nonblock(fd, 1);
2effd274 784
0bdd8b85
BC
785 if (nb_connections >= nb_max_connections) {
786 http_send_too_busy_reply(fd);
2effd274 787 goto fail;
0bdd8b85 788 }
115329f1 789
2effd274
FB
790 /* add a new connection */
791 c = av_mallocz(sizeof(HTTPContext));
792 if (!c)
793 goto fail;
115329f1 794
2effd274
FB
795 c->fd = fd;
796 c->poll_entry = NULL;
797 c->from_addr = from_addr;
798 c->buffer_size = IOBUFFER_INIT_SIZE;
799 c->buffer = av_malloc(c->buffer_size);
800 if (!c->buffer)
801 goto fail;
8bc80f8b
PG
802
803 c->next = first_http_ctx;
804 first_http_ctx = c;
2effd274 805 nb_connections++;
115329f1 806
2effd274
FB
807 start_wait_request(c, is_rtsp);
808
809 return;
810
811 fail:
812 if (c) {
813 av_free(c->buffer);
814 av_free(c);
815 }
d96633bb 816 closesocket(fd);
2effd274
FB
817}
818
819static void close_connection(HTTPContext *c)
820{
821 HTTPContext **cp, *c1;
822 int i, nb_streams;
823 AVFormatContext *ctx;
824 URLContext *h;
825 AVStream *st;
826
827 /* remove connection from list */
828 cp = &first_http_ctx;
829 while ((*cp) != NULL) {
830 c1 = *cp;
611c5741 831 if (c1 == c)
2effd274 832 *cp = c->next;
611c5741 833 else
2effd274 834 cp = &c1->next;
2effd274
FB
835 }
836
bc351386
FB
837 /* remove references, if any (XXX: do it faster) */
838 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
839 if (c1->rtsp_c == c)
840 c1->rtsp_c = NULL;
841 }
842
2effd274
FB
843 /* remove connection associated resources */
844 if (c->fd >= 0)
d96633bb 845 closesocket(c->fd);
2effd274
FB
846 if (c->fmt_in) {
847 /* close each frame parser */
848 for(i=0;i<c->fmt_in->nb_streams;i++) {
849 st = c->fmt_in->streams[i];
611c5741 850 if (st->codec->codec)
01f4895c 851 avcodec_close(st->codec);
2effd274 852 }
cd3716b9 853 avformat_close_input(&c->fmt_in);
2effd274
FB
854 }
855
856 /* free RTP output streams if any */
857 nb_streams = 0;
115329f1 858 if (c->stream)
2effd274 859 nb_streams = c->stream->nb_streams;
115329f1 860
2effd274
FB
861 for(i=0;i<nb_streams;i++) {
862 ctx = c->rtp_ctx[i];
863 if (ctx) {
864 av_write_trailer(ctx);
d2d67e42 865 av_dict_free(&ctx->metadata);
ea4f8aab 866 av_free(ctx->streams[0]);
2effd274
FB
867 av_free(ctx);
868 }
869 h = c->rtp_handles[i];
611c5741 870 if (h)
b263bf66 871 ffurl_close(h);
2effd274 872 }
115329f1 873
b88ba823
MH
874 ctx = &c->fmt_ctx;
875
637b638e 876 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
87638494
PG
877 if (ctx->oformat) {
878 /* prepare header */
b92c5452 879 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
87638494 880 av_write_trailer(ctx);
f8b06be9 881 av_freep(&c->pb_buffer);
6dc7d80d 882 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
87638494
PG
883 }
884 }
885 }
886
115329f1 887 for(i=0; i<ctx->nb_streams; i++)
0bd53967 888 av_free(ctx->streams[i]);
f0ef6240 889
edfdd798 890 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
6edd6884 891 current_bandwidth -= c->stream->bandwidth;
5400e092
AB
892
893 /* signal that there is no feed if we are the feeder socket */
894 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
895 c->stream->feed_opened = 0;
896 close(c->feed_fd);
897 }
898
2effd274 899 av_freep(&c->pb_buffer);
bc351386 900 av_freep(&c->packet_buffer);
2effd274
FB
901 av_free(c->buffer);
902 av_free(c);
903 nb_connections--;
904}
905
906static int handle_connection(HTTPContext *c)
907{
908 int len, ret;
115329f1 909
85f07f22
FB
910 switch(c->state) {
911 case HTTPSTATE_WAIT_REQUEST:
2effd274 912 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
913 /* timeout ? */
914 if ((c->timeout - cur_time) < 0)
915 return -1;
916 if (c->poll_entry->revents & (POLLERR | POLLHUP))
917 return -1;
918
919 /* no need to read if no events */
920 if (!(c->poll_entry->revents & POLLIN))
921 return 0;
922 /* read the data */
1bc1cfdd 923 read_loop:
c60202df 924 len = recv(c->fd, c->buffer_ptr, 1, 0);
85f07f22 925 if (len < 0) {
28c4741a
MS
926 if (ff_neterrno() != AVERROR(EAGAIN) &&
927 ff_neterrno() != AVERROR(EINTR))
85f07f22
FB
928 return -1;
929 } else if (len == 0) {
930 return -1;
931 } else {
94d9ad5f 932 /* search for end of request. */
0c1a9eda 933 uint8_t *ptr;
85f07f22
FB
934 c->buffer_ptr += len;
935 ptr = c->buffer_ptr;
936 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
937 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
938 /* request found : parse it and reply */
2effd274
FB
939 if (c->state == HTTPSTATE_WAIT_REQUEST) {
940 ret = http_parse_request(c);
941 } else {
942 ret = rtsp_parse_request(c);
943 }
944 if (ret < 0)
85f07f22
FB
945 return -1;
946 } else if (ptr >= c->buffer_end) {
947 /* request too long: cannot do anything */
948 return -1;
1bc1cfdd 949 } else goto read_loop;
85f07f22
FB
950 }
951 break;
952
953 case HTTPSTATE_SEND_HEADER:
954 if (c->poll_entry->revents & (POLLERR | POLLHUP))
955 return -1;
956
2effd274 957 /* no need to write if no events */
85f07f22
FB
958 if (!(c->poll_entry->revents & POLLOUT))
959 return 0;
c60202df 960 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
85f07f22 961 if (len < 0) {
28c4741a
MS
962 if (ff_neterrno() != AVERROR(EAGAIN) &&
963 ff_neterrno() != AVERROR(EINTR)) {
85f07f22 964 /* error : close connection */
2effd274 965 av_freep(&c->pb_buffer);
85f07f22
FB
966 return -1;
967 }
968 } else {
969 c->buffer_ptr += len;
2e04edb3
PG
970 if (c->stream)
971 c->stream->bytes_served += len;
a6e14edd 972 c->data_count += len;
85f07f22 973 if (c->buffer_ptr >= c->buffer_end) {
2effd274 974 av_freep(&c->pb_buffer);
85f07f22 975 /* if error, exit */
611c5741 976 if (c->http_error)
85f07f22 977 return -1;
2effd274 978 /* all the buffer was sent : synchronize to the incoming stream */
85f07f22
FB
979 c->state = HTTPSTATE_SEND_DATA_HEADER;
980 c->buffer_ptr = c->buffer_end = c->buffer;
981 }
982 }
983 break;
984
985 case HTTPSTATE_SEND_DATA:
986 case HTTPSTATE_SEND_DATA_HEADER:
987 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
988 /* for packetized output, we consider we can always write (the
989 input streams sets the speed). It may be better to verify
990 that we do not rely too much on the kernel queues */
991 if (!c->is_packetized) {
992 if (c->poll_entry->revents & (POLLERR | POLLHUP))
993 return -1;
115329f1 994
2effd274
FB
995 /* no need to read if no events */
996 if (!(c->poll_entry->revents & POLLOUT))
997 return 0;
998 }
5eb765ef 999 if (http_send_data(c) < 0)
85f07f22 1000 return -1;
638831aa
AB
1001 /* close connection if trailer sent */
1002 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
1003 return -1;
85f07f22
FB
1004 break;
1005 case HTTPSTATE_RECEIVE_DATA:
1006 /* no need to read if no events */
1007 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1008 return -1;
1009 if (!(c->poll_entry->revents & POLLIN))
1010 return 0;
1011 if (http_receive_data(c) < 0)
1012 return -1;
1013 break;
1014 case HTTPSTATE_WAIT_FEED:
1015 /* no need to read if no events */
a6e14edd 1016 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
85f07f22
FB
1017 return -1;
1018
1019 /* nothing to do, we'll be waken up by incoming feed packets */
1020 break;
2effd274 1021
2effd274
FB
1022 case RTSPSTATE_SEND_REPLY:
1023 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1024 av_freep(&c->pb_buffer);
1025 return -1;
1026 }
1027 /* no need to write if no events */
1028 if (!(c->poll_entry->revents & POLLOUT))
1029 return 0;
c60202df 1030 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2effd274 1031 if (len < 0) {
28c4741a
MS
1032 if (ff_neterrno() != AVERROR(EAGAIN) &&
1033 ff_neterrno() != AVERROR(EINTR)) {
2effd274
FB
1034 /* error : close connection */
1035 av_freep(&c->pb_buffer);
1036 return -1;
1037 }
1038 } else {
1039 c->buffer_ptr += len;
1040 c->data_count += len;
1041 if (c->buffer_ptr >= c->buffer_end) {
1042 /* all the buffer was sent : wait for a new request */
1043 av_freep(&c->pb_buffer);
1044 start_wait_request(c, 1);
1045 }
1046 }
1047 break;
bc351386
FB
1048 case RTSPSTATE_SEND_PACKET:
1049 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1050 av_freep(&c->packet_buffer);
1051 return -1;
1052 }
1053 /* no need to write if no events */
1054 if (!(c->poll_entry->revents & POLLOUT))
1055 return 0;
c60202df
AB
1056 len = send(c->fd, c->packet_buffer_ptr,
1057 c->packet_buffer_end - c->packet_buffer_ptr, 0);
bc351386 1058 if (len < 0) {
28c4741a
MS
1059 if (ff_neterrno() != AVERROR(EAGAIN) &&
1060 ff_neterrno() != AVERROR(EINTR)) {
bc351386
FB
1061 /* error : close connection */
1062 av_freep(&c->packet_buffer);
1063 return -1;
1064 }
1065 } else {
1066 c->packet_buffer_ptr += len;
1067 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1068 /* all the buffer was sent : wait for a new request */
1069 av_freep(&c->packet_buffer);
1070 c->state = RTSPSTATE_WAIT_REQUEST;
1071 }
1072 }
1073 break;
2effd274
FB
1074 case HTTPSTATE_READY:
1075 /* nothing to do */
1076 break;
85f07f22
FB
1077 default:
1078 return -1;
1079 }
1080 return 0;
1081}
1082
3120d2a2
PG
1083static int extract_rates(char *rates, int ratelen, const char *request)
1084{
1085 const char *p;
1086
1087 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
bb3244de 1088 if (av_strncasecmp(p, "Pragma:", 7) == 0) {
3120d2a2
PG
1089 const char *q = p + 7;
1090
1091 while (*q && *q != '\n' && isspace(*q))
1092 q++;
1093
bb3244de 1094 if (av_strncasecmp(q, "stream-switch-entry=", 20) == 0) {
3120d2a2
PG
1095 int stream_no;
1096 int rate_no;
1097
1098 q += 20;
1099
cde25790 1100 memset(rates, 0xff, ratelen);
3120d2a2
PG
1101
1102 while (1) {
1103 while (*q && *q != '\n' && *q != ':')
1104 q++;
1105
611c5741 1106 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
3120d2a2 1107 break;
611c5741 1108
3120d2a2 1109 stream_no--;
611c5741 1110 if (stream_no < ratelen && stream_no >= 0)
3120d2a2 1111 rates[stream_no] = rate_no;
3120d2a2
PG
1112
1113 while (*q && *q != '\n' && !isspace(*q))
1114 q++;
1115 }
1116
1117 return 1;
1118 }
1119 }
1120 p = strchr(p, '\n');
1121 if (!p)
1122 break;
1123
1124 p++;
1125 }
1126
1127 return 0;
1128}
1129
cde25790 1130static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
3120d2a2
PG
1131{
1132 int i;
cde25790
PG
1133 int best_bitrate = 100000000;
1134 int best = -1;
1135
1136 for (i = 0; i < feed->nb_streams; i++) {
01f4895c 1137 AVCodecContext *feed_codec = feed->streams[i]->codec;
cde25790
PG
1138
1139 if (feed_codec->codec_id != codec->codec_id ||
1140 feed_codec->sample_rate != codec->sample_rate ||
1141 feed_codec->width != codec->width ||
611c5741 1142 feed_codec->height != codec->height)
cde25790 1143 continue;
cde25790
PG
1144
1145 /* Potential stream */
1146
115329f1 1147 /* We want the fastest stream less than bit_rate, or the slowest
cde25790
PG
1148 * faster than bit_rate
1149 */
1150
1151 if (feed_codec->bit_rate <= bit_rate) {
1152 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1153 best_bitrate = feed_codec->bit_rate;
1154 best = i;
1155 }
1156 } else {
1157 if (feed_codec->bit_rate < best_bitrate) {
1158 best_bitrate = feed_codec->bit_rate;
1159 best = i;
1160 }
1161 }
1162 }
1163
1164 return best;
1165}
1166
1167static int modify_current_stream(HTTPContext *c, char *rates)
1168{
1169 int i;
1170 FFStream *req = c->stream;
1171 int action_required = 0;
3120d2a2 1172
001bcd29
PG
1173 /* Not much we can do for a feed */
1174 if (!req->feed)
1175 return 0;
1176
3120d2a2 1177 for (i = 0; i < req->nb_streams; i++) {
01f4895c 1178 AVCodecContext *codec = req->streams[i]->codec;
3120d2a2 1179
3120d2a2
PG
1180 switch(rates[i]) {
1181 case 0:
cde25790 1182 c->switch_feed_streams[i] = req->feed_streams[i];
3120d2a2
PG
1183 break;
1184 case 1:
cde25790 1185 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
3120d2a2
PG
1186 break;
1187 case 2:
cde25790
PG
1188 /* Wants off or slow */
1189 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1190#ifdef WANTS_OFF
1191 /* This doesn't work well when it turns off the only stream! */
1192 c->switch_feed_streams[i] = -2;
1193 c->feed_streams[i] = -2;
1194#endif
3120d2a2
PG
1195 break;
1196 }
3120d2a2 1197
cde25790
PG
1198 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1199 action_required = 1;
1200 }
3120d2a2 1201
cde25790
PG
1202 return action_required;
1203}
3120d2a2 1204
2effd274
FB
1205/* XXX: factorize in utils.c ? */
1206/* XXX: take care with different space meaning */
1207static void skip_spaces(const char **pp)
1208{
1209 const char *p;
1210 p = *pp;
1211 while (*p == ' ' || *p == '\t')
1212 p++;
1213 *pp = p;
1214}
1215
1216static void get_word(char *buf, int buf_size, const char **pp)
1217{
1218 const char *p;
1219 char *q;
1220
1221 p = *pp;
1222 skip_spaces(&p);
1223 q = buf;
1224 while (!isspace(*p) && *p != '\0') {
1225 if ((q - buf) < buf_size - 1)
1226 *q++ = *p;
1227 p++;
1228 }
1229 if (buf_size > 0)
1230 *q = '\0';
1231 *pp = p;
1232}
1233
c64c0a9b
BL
1234static void get_arg(char *buf, int buf_size, const char **pp)
1235{
1236 const char *p;
1237 char *q;
1238 int quote;
1239
1240 p = *pp;
1241 while (isspace(*p)) p++;
1242 q = buf;
1243 quote = 0;
1244 if (*p == '\"' || *p == '\'')
1245 quote = *p++;
1246 for(;;) {
1247 if (quote) {
1248 if (*p == quote)
1249 break;
1250 } else {
1251 if (isspace(*p))
1252 break;
1253 }
1254 if (*p == '\0')
1255 break;
1256 if ((q - buf) < buf_size - 1)
1257 *q++ = *p;
1258 p++;
1259 }
1260 *q = '\0';
1261 if (quote && *p == quote)
1262 p++;
1263 *pp = p;
1264}
1265
58f48adb
BL
1266static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1267 const char *p, const char *filename, int line_num)
1268{
1269 char arg[1024];
1270 IPAddressACL acl;
1271 int errors = 0;
1272
1273 get_arg(arg, sizeof(arg), &p);
bb3244de 1274 if (av_strcasecmp(arg, "allow") == 0)
58f48adb 1275 acl.action = IP_ALLOW;
bb3244de 1276 else if (av_strcasecmp(arg, "deny") == 0)
58f48adb
BL
1277 acl.action = IP_DENY;
1278 else {
1279 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1280 filename, line_num, arg);
1281 errors++;
1282 }
1283
1284 get_arg(arg, sizeof(arg), &p);
1285
1286 if (resolve_host(&acl.first, arg) != 0) {
1287 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1288 filename, line_num, arg);
1289 errors++;
1290 } else
1291 acl.last = acl.first;
1292
1293 get_arg(arg, sizeof(arg), &p);
1294
1295 if (arg[0]) {
1296 if (resolve_host(&acl.last, arg) != 0) {
1297 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1298 filename, line_num, arg);
1299 errors++;
1300 }
1301 }
1302
1303 if (!errors) {
1304 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1305 IPAddressACL **naclp = 0;
1306
1307 acl.next = 0;
1308 *nacl = acl;
1309
1310 if (stream)
1311 naclp = &stream->acl;
1312 else if (feed)
1313 naclp = &feed->acl;
1314 else if (ext_acl)
1315 naclp = &ext_acl;
1316 else {
1317 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1318 filename, line_num);
1319 errors++;
1320 }
1321
1322 if (naclp) {
1323 while (*naclp)
1324 naclp = &(*naclp)->next;
1325
1326 *naclp = nacl;
1327 }
1328 }
1329}
1330
1331
1332static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1333{
1334 FILE* f;
1335 char line[1024];
1336 char cmd[1024];
1337 IPAddressACL *acl = NULL;
1338 int line_num = 0;
1339 const char *p;
1340
1341 f = fopen(stream->dynamic_acl, "r");
1342 if (!f) {
1343 perror(stream->dynamic_acl);
1344 return NULL;
1345 }
1346
1347 acl = av_mallocz(sizeof(IPAddressACL));
1348
1349 /* Build ACL */
1350 for(;;) {
1351 if (fgets(line, sizeof(line), f) == NULL)
1352 break;
1353 line_num++;
1354 p = line;
1355 while (isspace(*p))
1356 p++;
1357 if (*p == '\0' || *p == '#')
1358 continue;
1359 get_arg(cmd, sizeof(cmd), &p);
1360
bb3244de 1361 if (!av_strcasecmp(cmd, "ACL"))
58f48adb
BL
1362 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1363 }
1364 fclose(f);
1365 return acl;
1366}
1367
1368
1369static void free_acl_list(IPAddressACL *in_acl)
1370{
1371 IPAddressACL *pacl,*pacl2;
1372
1373 pacl = in_acl;
1374 while(pacl) {
1375 pacl2 = pacl;
1376 pacl = pacl->next;
1377 av_freep(pacl2);
1378 }
1379}
1380
1381static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
8256c0a3
PG
1382{
1383 enum IPAddressAction last_action = IP_DENY;
1384 IPAddressACL *acl;
1385 struct in_addr *src = &c->from_addr.sin_addr;
2bd8416e 1386 unsigned long src_addr = src->s_addr;
8256c0a3 1387
58f48adb 1388 for (acl = in_acl; acl; acl = acl->next) {
611c5741 1389 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
8256c0a3 1390 return (acl->action == IP_ALLOW) ? 1 : 0;
8256c0a3
PG
1391 last_action = acl->action;
1392 }
1393
1394 /* Nothing matched, so return not the last action */
1395 return (last_action == IP_DENY) ? 1 : 0;
1396}
1397
58f48adb
BL
1398static int validate_acl(FFStream *stream, HTTPContext *c)
1399{
1400 int ret = 0;
1401 IPAddressACL *acl;
1402
1403
1404 /* if stream->acl is null validate_acl_list will return 1 */
1405 ret = validate_acl_list(stream->acl, c);
1406
1407 if (stream->dynamic_acl[0]) {
1408 acl = parse_dynamic_acl(stream, c);
1409
1410 ret = validate_acl_list(acl, c);
1411
1412 free_acl_list(acl);
1413 }
1414
1415 return ret;
1416}
1417
829ac53d
FB
1418/* compute the real filename of a file by matching it without its
1419 extensions to all the stream filenames */
1420static void compute_real_filename(char *filename, int max_size)
1421{
1422 char file1[1024];
1423 char file2[1024];
1424 char *p;
1425 FFStream *stream;
1426
1427 /* compute filename by matching without the file extensions */
f7d78f36 1428 av_strlcpy(file1, filename, sizeof(file1));
829ac53d
FB
1429 p = strrchr(file1, '.');
1430 if (p)
1431 *p = '\0';
1432 for(stream = first_stream; stream != NULL; stream = stream->next) {
f7d78f36 1433 av_strlcpy(file2, stream->filename, sizeof(file2));
829ac53d
FB
1434 p = strrchr(file2, '.');
1435 if (p)
1436 *p = '\0';
1437 if (!strcmp(file1, file2)) {
f7d78f36 1438 av_strlcpy(filename, stream->filename, max_size);
829ac53d
FB
1439 break;
1440 }
1441 }
1442}
1443
1444enum RedirType {
1445 REDIR_NONE,
1446 REDIR_ASX,
1447 REDIR_RAM,
1448 REDIR_ASF,
1449 REDIR_RTSP,
1450 REDIR_SDP,
1451};
1452
85f07f22
FB
1453/* parse http request and prepare header */
1454static int http_parse_request(HTTPContext *c)
1455{
1456 char *p;
829ac53d 1457 enum RedirType redir_type;
85f07f22 1458 char cmd[32];
bae79c04 1459 char info[1024], filename[1024];
85f07f22
FB
1460 char url[1024], *q;
1461 char protocol[32];
1462 char msg[1024];
1463 const char *mime_type;
1464 FFStream *stream;
42a63c6a 1465 int i;
3120d2a2 1466 char ratebuf[32];
cde25790 1467 char *useragent = 0;
85f07f22
FB
1468
1469 p = c->buffer;
2effd274 1470 get_word(cmd, sizeof(cmd), (const char **)&p);
f7d78f36 1471 av_strlcpy(c->method, cmd, sizeof(c->method));
7434ba6d 1472
85f07f22 1473 if (!strcmp(cmd, "GET"))
edfdd798 1474 c->post = 0;
85f07f22 1475 else if (!strcmp(cmd, "POST"))
edfdd798 1476 c->post = 1;
85f07f22
FB
1477 else
1478 return -1;
1479
2effd274 1480 get_word(url, sizeof(url), (const char **)&p);
f7d78f36 1481 av_strlcpy(c->url, url, sizeof(c->url));
7434ba6d 1482
2effd274 1483 get_word(protocol, sizeof(protocol), (const char **)&p);
85f07f22
FB
1484 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1485 return -1;
7434ba6d 1486
f7d78f36 1487 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
90f9c440 1488
4d58e4cb 1489 if (avserver_debug)
77553ae3 1490 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
115329f1 1491
85f07f22 1492 /* find the filename and the optional info string in the request */
bae79c04 1493 p = strchr(url, '?');
85f07f22 1494 if (p) {
f7d78f36 1495 av_strlcpy(info, p, sizeof(info));
85f07f22 1496 *p = '\0';
611c5741 1497 } else
85f07f22 1498 info[0] = '\0';
85f07f22 1499
f7d78f36 1500 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
bae79c04 1501
cde25790 1502 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
bb3244de 1503 if (av_strncasecmp(p, "User-Agent:", 11) == 0) {
cde25790
PG
1504 useragent = p + 11;
1505 if (*useragent && *useragent != '\n' && isspace(*useragent))
1506 useragent++;
1507 break;
1508 }
1509 p = strchr(p, '\n');
1510 if (!p)
1511 break;
1512
1513 p++;
1514 }
1515
829ac53d 1516 redir_type = REDIR_NONE;
aa13b573 1517 if (av_match_ext(filename, "asx")) {
829ac53d 1518 redir_type = REDIR_ASX;
7434ba6d 1519 filename[strlen(filename)-1] = 'f';
aa13b573 1520 } else if (av_match_ext(filename, "asf") &&
bb3244de 1521 (!useragent || av_strncasecmp(useragent, "NSPlayer", 8) != 0)) {
cde25790 1522 /* if this isn't WMP or lookalike, return the redirector file */
829ac53d 1523 redir_type = REDIR_ASF;
aa13b573 1524 } else if (av_match_ext(filename, "rpm,ram")) {
829ac53d 1525 redir_type = REDIR_RAM;
42a63c6a 1526 strcpy(filename + strlen(filename)-2, "m");
aa13b573 1527 } else if (av_match_ext(filename, "rtsp")) {
829ac53d 1528 redir_type = REDIR_RTSP;
bae79c04 1529 compute_real_filename(filename, sizeof(filename) - 1);
aa13b573 1530 } else if (av_match_ext(filename, "sdp")) {
829ac53d 1531 redir_type = REDIR_SDP;
bae79c04 1532 compute_real_filename(filename, sizeof(filename) - 1);
42a63c6a 1533 }
115329f1 1534
bae79c04
AB
1535 // "redirect" / request to index.html
1536 if (!strlen(filename))
f7d78f36 1537 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
bae79c04 1538
85f07f22
FB
1539 stream = first_stream;
1540 while (stream != NULL) {
8256c0a3 1541 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
85f07f22
FB
1542 break;
1543 stream = stream->next;
1544 }
1545 if (stream == NULL) {
d445a7e9 1546 snprintf(msg, sizeof(msg), "File '%s' not found", url);
77553ae3 1547 http_log("File '%s' not found\n", url);
85f07f22
FB
1548 goto send_error;
1549 }
42a63c6a 1550
cde25790
PG
1551 c->stream = stream;
1552 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1553 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1554
1555 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1556 c->http_error = 301;
1557 q = c->buffer;
a3aa4fed
BC
1558 q += snprintf(q, c->buffer_size,
1559 "HTTP/1.0 301 Moved\r\n"
1560 "Location: %s\r\n"
1561 "Content-type: text/html\r\n"
1562 "\r\n"
1563 "<html><head><title>Moved</title></head><body>\r\n"
1564 "You should be <a href=\"%s\">redirected</a>.\r\n"
1565 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
cde25790
PG
1566 /* prepare output buffer */
1567 c->buffer_ptr = c->buffer;
1568 c->buffer_end = q;
1569 c->state = HTTPSTATE_SEND_HEADER;
1570 return 0;
1571 }
1572
3120d2a2
PG
1573 /* If this is WMP, get the rate information */
1574 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
cde25790 1575 if (modify_current_stream(c, ratebuf)) {
37d3e066 1576 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
cde25790 1577 if (c->switch_feed_streams[i] >= 0)
305ca590 1578 c->switch_feed_streams[i] = -1;
cde25790
PG
1579 }
1580 }
3120d2a2
PG
1581 }
1582
d8f28a77
BC
1583 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1584 current_bandwidth += stream->bandwidth;
1585
755bfeab 1586 /* If already streaming this feed, do not let start another feeder. */
d0a5513b
AB
1587 if (stream->feed_opened) {
1588 snprintf(msg, sizeof(msg), "This feed is already being received.");
77553ae3 1589 http_log("Feed '%s' already being received\n", stream->feed_filename);
d0a5513b
AB
1590 goto send_error;
1591 }
1592
edfdd798 1593 if (c->post == 0 && max_bandwidth < current_bandwidth) {
0aee2a57 1594 c->http_error = 503;
42a63c6a 1595 q = c->buffer;
a3aa4fed 1596 q += snprintf(q, c->buffer_size,
0aee2a57 1597 "HTTP/1.0 503 Server too busy\r\n"
a3aa4fed
BC
1598 "Content-type: text/html\r\n"
1599 "\r\n"
1600 "<html><head><title>Too busy</title></head><body>\r\n"
1601 "<p>The server is too busy to serve your request at this time.</p>\r\n"
0be4b8d9
BC
1602 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1603 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
a3aa4fed 1604 "</body></html>\r\n", current_bandwidth, max_bandwidth);
42a63c6a
PG
1605 /* prepare output buffer */
1606 c->buffer_ptr = c->buffer;
1607 c->buffer_end = q;
1608 c->state = HTTPSTATE_SEND_HEADER;
1609 return 0;
1610 }
115329f1 1611
829ac53d 1612 if (redir_type != REDIR_NONE) {
7434ba6d 1613 char *hostinfo = 0;
115329f1 1614
7434ba6d 1615 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
bb3244de 1616 if (av_strncasecmp(p, "Host:", 5) == 0) {
7434ba6d
PG
1617 hostinfo = p + 5;
1618 break;
1619 }
1620 p = strchr(p, '\n');
1621 if (!p)
1622 break;
1623
1624 p++;
1625 }
1626
1627 if (hostinfo) {
1628 char *eoh;
1629 char hostbuf[260];
1630
1631 while (isspace(*hostinfo))
1632 hostinfo++;
1633
1634 eoh = strchr(hostinfo, '\n');
1635 if (eoh) {
1636 if (eoh[-1] == '\r')
1637 eoh--;
1638
1639 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1640 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1641 hostbuf[eoh - hostinfo] = 0;
1642
1643 c->http_error = 200;
1644 q = c->buffer;
829ac53d
FB
1645 switch(redir_type) {
1646 case REDIR_ASX:
a3aa4fed
BC
1647 q += snprintf(q, c->buffer_size,
1648 "HTTP/1.0 200 ASX Follows\r\n"
1649 "Content-type: video/x-ms-asf\r\n"
1650 "\r\n"
1651 "<ASX Version=\"3\">\r\n"
4d58e4cb 1652 //"<!-- Autogenerated by avserver -->\r\n"
a3aa4fed
BC
1653 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1654 "</ASX>\r\n", hostbuf, filename, info);
829ac53d
FB
1655 break;
1656 case REDIR_RAM:
a3aa4fed
BC
1657 q += snprintf(q, c->buffer_size,
1658 "HTTP/1.0 200 RAM Follows\r\n"
1659 "Content-type: audio/x-pn-realaudio\r\n"
1660 "\r\n"
4d58e4cb 1661 "# Autogenerated by avserver\r\n"
a3aa4fed 1662 "http://%s/%s%s\r\n", hostbuf, filename, info);
829ac53d
FB
1663 break;
1664 case REDIR_ASF:
a3aa4fed
BC
1665 q += snprintf(q, c->buffer_size,
1666 "HTTP/1.0 200 ASF Redirect follows\r\n"
1667 "Content-type: video/x-ms-asf\r\n"
1668 "\r\n"
1669 "[Reference]\r\n"
1670 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
829ac53d
FB
1671 break;
1672 case REDIR_RTSP:
1673 {
1674 char hostname[256], *p;
1675 /* extract only hostname */
f7d78f36 1676 av_strlcpy(hostname, hostbuf, sizeof(hostname));
829ac53d
FB
1677 p = strrchr(hostname, ':');
1678 if (p)
1679 *p = '\0';
a3aa4fed
BC
1680 q += snprintf(q, c->buffer_size,
1681 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1682 /* XXX: incorrect mime type ? */
1683 "Content-type: application/x-rtsp\r\n"
1684 "\r\n"
1685 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
829ac53d
FB
1686 }
1687 break;
1688 case REDIR_SDP:
1689 {
0c1a9eda 1690 uint8_t *sdp_data;
829ac53d
FB
1691 int sdp_data_size, len;
1692 struct sockaddr_in my_addr;
1693
a3aa4fed
BC
1694 q += snprintf(q, c->buffer_size,
1695 "HTTP/1.0 200 OK\r\n"
1696 "Content-type: application/sdp\r\n"
1697 "\r\n");
829ac53d
FB
1698
1699 len = sizeof(my_addr);
1700 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
115329f1 1701
829ac53d 1702 /* XXX: should use a dynamic buffer */
115329f1
DB
1703 sdp_data_size = prepare_sdp_description(stream,
1704 &sdp_data,
829ac53d
FB
1705 my_addr.sin_addr);
1706 if (sdp_data_size > 0) {
1707 memcpy(q, sdp_data, sdp_data_size);
1708 q += sdp_data_size;
1709 *q = '\0';
1710 av_free(sdp_data);
1711 }
1712 }
1713 break;
1714 default:
0f4e8165 1715 abort();
829ac53d 1716 break;
2effd274 1717 }
7434ba6d
PG
1718
1719 /* prepare output buffer */
1720 c->buffer_ptr = c->buffer;
1721 c->buffer_end = q;
1722 c->state = HTTPSTATE_SEND_HEADER;
1723 return 0;
1724 }
1725 }
1726 }
1727
d445a7e9 1728 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
7434ba6d 1729 goto send_error;
85f07f22
FB
1730 }
1731
a6e14edd 1732 stream->conns_served++;
7434ba6d 1733
85f07f22
FB
1734 /* XXX: add there authenticate and IP match */
1735
edfdd798 1736 if (c->post) {
85f07f22
FB
1737 /* if post, it means a feed is being sent */
1738 if (!stream->is_feed) {
e16190fa
DB
1739 /* However it might be a status report from WMP! Let us log the
1740 * data as it might come in handy one day. */
7434ba6d 1741 char *logline = 0;
3120d2a2 1742 int client_id = 0;
115329f1 1743
7434ba6d 1744 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
bb3244de 1745 if (av_strncasecmp(p, "Pragma: log-line=", 17) == 0) {
7434ba6d
PG
1746 logline = p;
1747 break;
1748 }
bb3244de 1749 if (av_strncasecmp(p, "Pragma: client-id=", 18) == 0)
3120d2a2 1750 client_id = strtol(p + 18, 0, 10);
7434ba6d
PG
1751 p = strchr(p, '\n');
1752 if (!p)
1753 break;
1754
1755 p++;
1756 }
1757
1758 if (logline) {
1759 char *eol = strchr(logline, '\n');
1760
1761 logline += 17;
1762
1763 if (eol) {
1764 if (eol[-1] == '\r')
1765 eol--;
7906085f 1766 http_log("%.*s\n", (int) (eol - logline), logline);
7434ba6d
PG
1767 c->suppress_log = 1;
1768 }
1769 }
3120d2a2 1770
f190f676 1771#ifdef DEBUG
cde25790 1772 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1773#endif
1774
1775 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1776 HTTPContext *wmpc;
1777
1778 /* Now we have to find the client_id */
1779 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1780 if (wmpc->wmp_client_id == client_id)
1781 break;
1782 }
1783
2d563d2f
AB
1784 if (wmpc && modify_current_stream(wmpc, ratebuf))
1785 wmpc->switch_pending = 1;
3120d2a2 1786 }
115329f1 1787
d445a7e9 1788 snprintf(msg, sizeof(msg), "POST command not handled");
cb275dd9 1789 c->stream = 0;
85f07f22
FB
1790 goto send_error;
1791 }
1792 if (http_start_receive_data(c) < 0) {
d445a7e9 1793 snprintf(msg, sizeof(msg), "could not open feed");
85f07f22
FB
1794 goto send_error;
1795 }
1796 c->http_error = 0;
1797 c->state = HTTPSTATE_RECEIVE_DATA;
1798 return 0;
1799 }
1800
f190f676 1801#ifdef DEBUG
611c5741 1802 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
cde25790 1803 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1804#endif
1805
85f07f22 1806 if (c->stream->stream_type == STREAM_TYPE_STATUS)
dca21085 1807 goto send_status;
85f07f22
FB
1808
1809 /* open input stream */
1810 if (open_input_stream(c, info) < 0) {
d445a7e9 1811 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
85f07f22
FB
1812 goto send_error;
1813 }
1814
1815 /* prepare http header */
1816 q = c->buffer;
d445a7e9 1817 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
85f07f22
FB
1818 mime_type = c->stream->fmt->mime_type;
1819 if (!mime_type)
087fa475 1820 mime_type = "application/x-octet-stream";
d445a7e9 1821 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
85f07f22
FB
1822
1823 /* for asf, we need extra headers */
8256c0a3 1824 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
3120d2a2 1825 /* Need to allocate a client id */
3120d2a2 1826
042819c5 1827 c->wmp_client_id = av_lfg_get(&random_state);
3120d2a2 1828
d445a7e9 1829 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 1830 }
d445a7e9
PG
1831 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1832 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
115329f1 1833
85f07f22
FB
1834 /* prepare output buffer */
1835 c->http_error = 0;
1836 c->buffer_ptr = c->buffer;
1837 c->buffer_end = q;
1838 c->state = HTTPSTATE_SEND_HEADER;
1839 return 0;
1840 send_error:
1841 c->http_error = 404;
1842 q = c->buffer;
a3aa4fed
BC
1843 q += snprintf(q, c->buffer_size,
1844 "HTTP/1.0 404 Not Found\r\n"
1845 "Content-type: text/html\r\n"
1846 "\r\n"
5e567aae
DB
1847 "<html>\n"
1848 "<head><title>404 Not Found</title></head>\n"
1849 "<body>%s</body>\n"
1850 "</html>\n", msg);
85f07f22
FB
1851 /* prepare output buffer */
1852 c->buffer_ptr = c->buffer;
1853 c->buffer_end = q;
1854 c->state = HTTPSTATE_SEND_HEADER;
1855 return 0;
dca21085
SS
1856 send_status:
1857 compute_status(c);
85f07f22
FB
1858 c->http_error = 200; /* horrible : we use this value to avoid
1859 going to the send data state */
1860 c->state = HTTPSTATE_SEND_HEADER;
1861 return 0;
1862}
1863
ae628ec1 1864static void fmt_bytecount(AVIOContext *pb, int64_t count)
2ac887ba 1865{
b0f29db5 1866 static const char suffix[] = " kMGTP";
2ac887ba
PG
1867 const char *s;
1868
611c5741 1869 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
2ac887ba 1870
d9d86e00 1871 avio_printf(pb, "%"PRId64"%c", count, *s);
2ac887ba
PG
1872}
1873
dca21085 1874static void compute_status(HTTPContext *c)
85f07f22
FB
1875{
1876 HTTPContext *c1;
1877 FFStream *stream;
2effd274 1878 char *p;
85f07f22 1879 time_t ti;
2effd274 1880 int i, len;
ae628ec1 1881 AVIOContext *pb;
cde25790 1882
b92c5452 1883 if (avio_open_dyn_buf(&pb) < 0) {
2effd274 1884 /* XXX: return an error ? */
cde25790 1885 c->buffer_ptr = c->buffer;
2effd274
FB
1886 c->buffer_end = c->buffer;
1887 return;
cde25790 1888 }
85f07f22 1889
d9d86e00
AK
1890 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1891 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1892 avio_printf(pb, "Pragma: no-cache\r\n");
1893 avio_printf(pb, "\r\n");
115329f1 1894
d9d86e00 1895 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
0679719d 1896 if (c->stream->feed_filename[0])
d9d86e00
AK
1897 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1898 avio_printf(pb, "</head>\n<body>");
1899 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
85f07f22 1900 /* format status */
d9d86e00
AK
1901 avio_printf(pb, "<h2>Available Streams</h2>\n");
1902 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1903 avio_printf(pb, "<tr><th valign=top>Path<th align=left>Served<br>Conns<th><br>bytes<th valign=top>Format<th>Bit rate<br>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
1904 stream = first_stream;
1905 while (stream != NULL) {
42a63c6a
PG
1906 char sfilename[1024];
1907 char *eosf;
1908
a6e14edd 1909 if (stream->feed != stream) {
f7d78f36 1910 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
a6e14edd
PG
1911 eosf = sfilename + strlen(sfilename);
1912 if (eosf - sfilename >= 4) {
611c5741 1913 if (strcmp(eosf - 4, ".asf") == 0)
a6e14edd 1914 strcpy(eosf - 4, ".asx");
611c5741 1915 else if (strcmp(eosf - 3, ".rm") == 0)
a6e14edd 1916 strcpy(eosf - 3, ".ram");
25e3e53d 1917 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
829ac53d
FB
1918 /* generate a sample RTSP director if
1919 unicast. Generate an SDP redirector if
1920 multicast */
2effd274
FB
1921 eosf = strrchr(sfilename, '.');
1922 if (!eosf)
1923 eosf = sfilename + strlen(sfilename);
829ac53d
FB
1924 if (stream->is_multicast)
1925 strcpy(eosf, ".sdp");
1926 else
1927 strcpy(eosf, ".rtsp");
a6e14edd 1928 }
42a63c6a 1929 }
115329f1 1930
d9d86e00 1931 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
a6e14edd 1932 sfilename, stream->filename);
d9d86e00 1933 avio_printf(pb, "<td align=right> %d <td align=right> ",
2ac887ba 1934 stream->conns_served);
2effd274 1935 fmt_bytecount(pb, stream->bytes_served);
a6e14edd 1936 switch(stream->stream_type) {
ace21da3 1937 case STREAM_TYPE_LIVE: {
a6e14edd
PG
1938 int audio_bit_rate = 0;
1939 int video_bit_rate = 0;
58445440
ZK
1940 const char *audio_codec_name = "";
1941 const char *video_codec_name = "";
1942 const char *audio_codec_name_extra = "";
1943 const char *video_codec_name_extra = "";
a6e14edd
PG
1944
1945 for(i=0;i<stream->nb_streams;i++) {
1946 AVStream *st = stream->streams[i];
01f4895c
MN
1947 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1948 switch(st->codec->codec_type) {
72415b2a 1949 case AVMEDIA_TYPE_AUDIO:
01f4895c 1950 audio_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1951 if (codec) {
1952 if (*audio_codec_name)
1953 audio_codec_name_extra = "...";
1954 audio_codec_name = codec->name;
1955 }
1956 break;
72415b2a 1957 case AVMEDIA_TYPE_VIDEO:
01f4895c 1958 video_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1959 if (codec) {
1960 if (*video_codec_name)
1961 video_codec_name_extra = "...";
1962 video_codec_name = codec->name;
1963 }
1964 break;
72415b2a 1965 case AVMEDIA_TYPE_DATA:
01f4895c 1966 video_bit_rate += st->codec->bit_rate;
e240a0bb 1967 break;
a6e14edd 1968 default:
0f4e8165 1969 abort();
79c4ea3c 1970 }
85f07f22 1971 }
d9d86e00 1972 avio_printf(pb, "<td align=center> %s <td align=right> %d <td align=right> %d <td> %s %s <td align=right> %d <td> %s %s",
a6e14edd 1973 stream->fmt->name,
6edd6884 1974 stream->bandwidth,
a6e14edd
PG
1975 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1976 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
611c5741 1977 if (stream->feed)
d9d86e00 1978 avio_printf(pb, "<td>%s", stream->feed->filename);
611c5741 1979 else
d9d86e00
AK
1980 avio_printf(pb, "<td>%s", stream->feed_filename);
1981 avio_printf(pb, "\n");
85f07f22 1982 }
a6e14edd
PG
1983 break;
1984 default:
d9d86e00 1985 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
a6e14edd 1986 break;
85f07f22 1987 }
85f07f22
FB
1988 }
1989 stream = stream->next;
1990 }
d9d86e00 1991 avio_printf(pb, "</table>\n");
a6e14edd
PG
1992
1993 stream = first_stream;
1994 while (stream != NULL) {
1995 if (stream->feed == stream) {
d9d86e00 1996 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
cde25790 1997 if (stream->pid) {
d9d86e00 1998 avio_printf(pb, "Running as pid %d.\n", stream->pid);
cde25790 1999
2effd274
FB
2000#if defined(linux) && !defined(CONFIG_NOCUTILS)
2001 {
2002 FILE *pid_stat;
2003 char ps_cmd[64];
2004
2005 /* This is somewhat linux specific I guess */
115329f1
DB
2006 snprintf(ps_cmd, sizeof(ps_cmd),
2007 "ps -o \"%%cpu,cputime\" --no-headers %d",
2effd274 2008 stream->pid);
115329f1 2009
2effd274
FB
2010 pid_stat = popen(ps_cmd, "r");
2011 if (pid_stat) {
2012 char cpuperc[10];
2013 char cpuused[64];
115329f1
DB
2014
2015 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2effd274 2016 cpuused) == 2) {
d9d86e00 2017 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2effd274
FB
2018 cpuperc, cpuused);
2019 }
2020 fclose(pid_stat);
cde25790 2021 }
cde25790
PG
2022 }
2023#endif
2024
d9d86e00 2025 avio_printf(pb, "<p>");
cde25790 2026 }
d9d86e00 2027 avio_printf(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
2028
2029 for (i = 0; i < stream->nb_streams; i++) {
2030 AVStream *st = stream->streams[i];
01f4895c 2031 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
b29f97d1 2032 const char *type = "unknown";
b582f314
PG
2033 char parameters[64];
2034
2035 parameters[0] = 0;
a6e14edd 2036
01f4895c 2037 switch(st->codec->codec_type) {
72415b2a 2038 case AVMEDIA_TYPE_AUDIO:
a6e14edd 2039 type = "audio";
acdc8520 2040 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
a6e14edd 2041 break;
72415b2a 2042 case AVMEDIA_TYPE_VIDEO:
a6e14edd 2043 type = "video";
01f4895c
MN
2044 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2045 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
a6e14edd
PG
2046 break;
2047 default:
0f4e8165 2048 abort();
a6e14edd 2049 }
d9d86e00 2050 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
01f4895c 2051 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
a6e14edd 2052 }
d9d86e00 2053 avio_printf(pb, "</table>\n");
a6e14edd 2054
115329f1 2055 }
a6e14edd
PG
2056 stream = stream->next;
2057 }
115329f1 2058
85f07f22 2059 /* connection status */
d9d86e00 2060 avio_printf(pb, "<h2>Connection Status</h2>\n");
85f07f22 2061
d9d86e00 2062 avio_printf(pb, "Number of connections: %d / %d<br>\n",
85f07f22
FB
2063 nb_connections, nb_max_connections);
2064
d9d86e00 2065 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
6edd6884 2066 current_bandwidth, max_bandwidth);
42a63c6a 2067
d9d86e00
AK
2068 avio_printf(pb, "<table>\n");
2069 avio_printf(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
2070 c1 = first_http_ctx;
2071 i = 0;
2effd274 2072 while (c1 != NULL) {
cde25790
PG
2073 int bitrate;
2074 int j;
2075
2076 bitrate = 0;
2effd274
FB
2077 if (c1->stream) {
2078 for (j = 0; j < c1->stream->nb_streams; j++) {
2d563d2f 2079 if (!c1->stream->feed)
01f4895c 2080 bitrate += c1->stream->streams[j]->codec->bit_rate;
2d563d2f
AB
2081 else if (c1->feed_streams[j] >= 0)
2082 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
cde25790
PG
2083 }
2084 }
2085
85f07f22
FB
2086 i++;
2087 p = inet_ntoa(c1->from_addr.sin_addr);
d9d86e00 2088 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
115329f1
DB
2089 i,
2090 c1->stream ? c1->stream->filename : "",
2effd274 2091 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
115329f1 2092 p,
2effd274
FB
2093 c1->protocol,
2094 http_state[c1->state]);
2095 fmt_bytecount(pb, bitrate);
d9d86e00 2096 avio_printf(pb, "<td align=right>");
2effd274 2097 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
d9d86e00 2098 avio_printf(pb, "<td align=right>");
2effd274 2099 fmt_bytecount(pb, c1->data_count);
d9d86e00 2100 avio_printf(pb, "\n");
85f07f22
FB
2101 c1 = c1->next;
2102 }
d9d86e00 2103 avio_printf(pb, "</table>\n");
115329f1 2104
85f07f22
FB
2105 /* date */
2106 ti = time(NULL);
2107 p = ctime(&ti);
d9d86e00
AK
2108 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2109 avio_printf(pb, "</body>\n</html>\n");
85f07f22 2110
6dc7d80d 2111 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2effd274
FB
2112 c->buffer_ptr = c->pb_buffer;
2113 c->buffer_end = c->pb_buffer + len;
85f07f22
FB
2114}
2115
85f07f22
FB
2116static int open_input_stream(HTTPContext *c, const char *info)
2117{
2118 char buf[128];
2119 char input_filename[1024];
50f2dfad 2120 AVFormatContext *s = NULL;
f02f745e 2121 int i, ret;
0c1a9eda 2122 int64_t stream_pos;
85f07f22
FB
2123
2124 /* find file name */
2125 if (c->stream->feed) {
2126 strcpy(input_filename, c->stream->feed->feed_filename);
85f07f22 2127 /* compute position (absolute time) */
ab0287fc 2128 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
9fcae973
AK
2129 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2130 return ret;
ab0287fc 2131 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
f747e6d3 2132 int prebuffer = strtol(buf, 0, 10);
0c1a9eda 2133 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
611c5741 2134 } else
0c1a9eda 2135 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
85f07f22
FB
2136 } else {
2137 strcpy(input_filename, c->stream->feed_filename);
85f07f22 2138 /* compute position (relative time) */
ab0287fc 2139 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
9fcae973
AK
2140 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2141 return ret;
ace21da3 2142 } else
85f07f22 2143 stream_pos = 0;
85f07f22
FB
2144 }
2145 if (input_filename[0] == '\0')
2146 return -1;
2147
2148 /* open stream */
50f2dfad 2149 if ((ret = avformat_open_input(&s, input_filename, c->stream->ifmt, &c->stream->in_opts)) < 0) {
c351cc7f 2150 http_log("could not open %s: %d\n", input_filename, ret);
85f07f22 2151 return -1;
2effd274 2152 }
9dc0bc3d 2153 s->flags |= AVFMT_FLAG_GENPTS;
85f07f22 2154 c->fmt_in = s;
c960e67a 2155 if (strcmp(s->iformat->name, "ffm") && avformat_find_stream_info(c->fmt_in, NULL) < 0) {
20f93c3c 2156 http_log("Could not find stream info '%s'\n", input_filename);
cd3716b9 2157 avformat_close_input(&s);
20f93c3c
BC
2158 return -1;
2159 }
115329f1 2160
2effd274
FB
2161 /* choose stream as clock source (we favorize video stream if
2162 present) for packet sending */
2163 c->pts_stream_index = 0;
2164 for(i=0;i<c->stream->nb_streams;i++) {
115329f1 2165 if (c->pts_stream_index == 0 &&
72415b2a 2166 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2effd274
FB
2167 c->pts_stream_index = i;
2168 }
2169 }
85f07f22 2170
611c5741 2171 if (c->fmt_in->iformat->read_seek)
60a04f7f 2172 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
2effd274
FB
2173 /* set the start time (needed for maxtime and RTP packet timing) */
2174 c->start_time = cur_time;
2175 c->first_pts = AV_NOPTS_VALUE;
85f07f22
FB
2176 return 0;
2177}
2178
e240a0bb
FB
2179/* return the server clock (in us) */
2180static int64_t get_server_clock(HTTPContext *c)
2effd274 2181{
e240a0bb 2182 /* compute current pts value from system time */
c3f58185 2183 return (cur_time - c->start_time) * 1000;
2effd274
FB
2184}
2185
e240a0bb
FB
2186/* return the estimated time at which the current packet must be sent
2187 (in us) */
2188static int64_t get_packet_send_clock(HTTPContext *c)
2effd274 2189{
e240a0bb 2190 int bytes_left, bytes_sent, frame_bytes;
115329f1 2191
e240a0bb 2192 frame_bytes = c->cur_frame_bytes;
611c5741 2193 if (frame_bytes <= 0)
e240a0bb 2194 return c->cur_pts;
611c5741 2195 else {
e240a0bb
FB
2196 bytes_left = c->buffer_end - c->buffer_ptr;
2197 bytes_sent = frame_bytes - bytes_left;
2198 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2effd274 2199 }
2effd274 2200}
2effd274 2201
2effd274 2202
2effd274
FB
2203static int http_prepare_data(HTTPContext *c)
2204{
2205 int i, len, ret;
2206 AVFormatContext *ctx;
2207
bc351386 2208 av_freep(&c->pb_buffer);
2effd274
FB
2209 switch(c->state) {
2210 case HTTPSTATE_SEND_DATA_HEADER:
2211 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
d2d67e42
AK
2212 av_dict_set(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2213 av_dict_set(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2214 av_dict_set(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2215 av_dict_set(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2effd274 2216
db3262b7
MW
2217 c->fmt_ctx.streams = av_mallocz(sizeof(AVStream *) * c->stream->nb_streams);
2218
3d9cc27d 2219 for(i=0;i<c->stream->nb_streams;i++) {
bb270c08 2220 AVStream *src;
db3262b7 2221 c->fmt_ctx.streams[i] = av_mallocz(sizeof(AVStream));
2effd274 2222 /* if file or feed, then just take streams from FFStream struct */
115329f1 2223 if (!c->stream->feed ||
2effd274 2224 c->stream->feed == c->stream)
7c054ea7 2225 src = c->stream->streams[i];
2effd274 2226 else
7c054ea7
PG
2227 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2228
db3262b7
MW
2229 *(c->fmt_ctx.streams[i]) = *src;
2230 c->fmt_ctx.streams[i]->priv_data = 0;
2231 c->fmt_ctx.streams[i]->codec->frame_number = 0; /* XXX: should be done in
2effd274
FB
2232 AVStream, not in codec */
2233 }
3d9cc27d
BC
2234 /* set output format parameters */
2235 c->fmt_ctx.oformat = c->stream->fmt;
2236 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2237
2effd274
FB
2238 c->got_key_frame = 0;
2239
2240 /* prepare header and save header data in a stream */
b92c5452 2241 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2effd274
FB
2242 /* XXX: potential leak */
2243 return -1;
2244 }
8978feda 2245 c->fmt_ctx.pb->seekable = 0;
2effd274 2246
8aae202e
BC
2247 /*
2248 * HACK to avoid mpeg ps muxer to spit many underflow errors
43fb279f 2249 * Default value from Libav
8aae202e
BC
2250 * Try to set it use configuration option
2251 */
8aae202e
BC
2252 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2253
50f2dfad 2254 if (avformat_write_header(&c->fmt_ctx, NULL) < 0) {
929a9b75 2255 http_log("Error writing output header\n");
f75cdda7 2256 return -1;
929a9b75 2257 }
d2d67e42 2258 av_dict_free(&c->fmt_ctx.metadata);
2effd274 2259
6dc7d80d 2260 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2effd274
FB
2261 c->buffer_ptr = c->pb_buffer;
2262 c->buffer_end = c->pb_buffer + len;
2263
2264 c->state = HTTPSTATE_SEND_DATA;
85f07f22
FB
2265 c->last_packet_sent = 0;
2266 break;
2267 case HTTPSTATE_SEND_DATA:
2268 /* find a new packet */
3b371676
BC
2269 /* read a packet from the input stream */
2270 if (c->stream->feed)
2271 ffm_set_write_index(c->fmt_in,
2272 c->stream->feed->feed_write_index,
2273 c->stream->feed->feed_size);
2274
2275 if (c->stream->max_time &&
2276 c->stream->max_time + c->start_time - cur_time < 0)
2277 /* We have timed out */
2278 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2279 else {
2280 AVPacket pkt;
2281 redo:
d9aac267
HC
2282 ret = av_read_frame(c->fmt_in, &pkt);
2283 if (ret < 0) {
2284 if (c->stream->feed) {
3b371676
BC
2285 /* if coming from feed, it means we reached the end of the
2286 ffm file, so must wait for more data */
2287 c->state = HTTPSTATE_WAIT_FEED;
2288 return 1; /* state changed */
d9aac267
HC
2289 } else if (ret == AVERROR(EAGAIN)) {
2290 /* input not ready, come back later */
2291 return 0;
2effd274 2292 } else {
3b371676 2293 if (c->stream->loop) {
cd3716b9 2294 avformat_close_input(&c->fmt_in);
3b371676
BC
2295 if (open_input_stream(c, "") < 0)
2296 goto no_loop;
2297 goto redo;
2298 } else {
2299 no_loop:
2300 /* must send trailer now because eof or error */
2301 c->state = HTTPSTATE_SEND_DATA_TRAILER;
1bc1cfdd 2302 }
3b371676
BC
2303 }
2304 } else {
084a8912 2305 int source_index = pkt.stream_index;
3b371676
BC
2306 /* update first pts if needed */
2307 if (c->first_pts == AV_NOPTS_VALUE) {
2308 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2309 c->start_time = cur_time;
2310 }
2311 /* send it to the appropriate stream */
2312 if (c->stream->feed) {
2313 /* if coming from a feed, select the right stream */
2314 if (c->switch_pending) {
2315 c->switch_pending = 0;
cde25790 2316 for(i=0;i<c->stream->nb_streams;i++) {
3b371676 2317 if (c->switch_feed_streams[i] == pkt.stream_index)
cc947f04 2318 if (pkt.flags & AV_PKT_FLAG_KEY)
305ca590 2319 c->switch_feed_streams[i] = -1;
3b371676
BC
2320 if (c->switch_feed_streams[i] >= 0)
2321 c->switch_pending = 1;
cde25790 2322 }
3b371676
BC
2323 }
2324 for(i=0;i<c->stream->nb_streams;i++) {
a5ba4ced 2325 if (c->stream->feed_streams[i] == pkt.stream_index) {
78728064 2326 AVStream *st = c->fmt_in->streams[source_index];
3b371676 2327 pkt.stream_index = i;
cc947f04 2328 if (pkt.flags & AV_PKT_FLAG_KEY &&
72415b2a 2329 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
180b7026 2330 c->stream->nb_streams == 1))
0332f549
BC
2331 c->got_key_frame = 1;
2332 if (!c->stream->send_on_key || c->got_key_frame)
3b371676
BC
2333 goto send_it;
2334 }
2335 }
2336 } else {
2337 AVCodecContext *codec;
dc3a6a36
BC
2338 AVStream *ist, *ost;
2339 send_it:
2340 ist = c->fmt_in->streams[source_index];
3b371676
BC
2341 /* specific handling for RTP: we use several
2342 output stream (one for each RTP
2343 connection). XXX: need more abstract handling */
2344 if (c->is_packetized) {
3b371676 2345 /* compute send time and duration */
8f56ccca 2346 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
f475f35f 2347 c->cur_pts -= c->first_pts;
8f56ccca 2348 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
3b371676
BC
2349 /* find RTP context */
2350 c->packet_stream_index = pkt.stream_index;
2351 ctx = c->rtp_ctx[c->packet_stream_index];
2352 if(!ctx) {
8a0b55ff 2353 av_free_packet(&pkt);
3b371676 2354 break;
8a0b55ff 2355 }
3b371676
BC
2356 codec = ctx->streams[0]->codec;
2357 /* only one stream per RTP connection */
2358 pkt.stream_index = 0;
2359 } else {
2360 ctx = &c->fmt_ctx;
2361 /* Fudge here */
3ab29d8e 2362 codec = ctx->streams[pkt.stream_index]->codec;
3b371676
BC
2363 }
2364
2365 if (c->is_packetized) {
2366 int max_packet_size;
90abbdba 2367 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
3b371676
BC
2368 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2369 else
b263bf66 2370 max_packet_size = c->rtp_handles[c->packet_stream_index]->max_packet_size;
403ee835 2371 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
3b371676 2372 } else {
b92c5452 2373 ret = avio_open_dyn_buf(&ctx->pb);
3b371676
BC
2374 }
2375 if (ret < 0) {
2376 /* XXX: potential leak */
2377 return -1;
2378 }
3ab29d8e
BC
2379 ost = ctx->streams[pkt.stream_index];
2380
8978feda 2381 ctx->pb->seekable = 0;
3b371676 2382 if (pkt.dts != AV_NOPTS_VALUE)
d80904cc 2383 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
3b371676 2384 if (pkt.pts != AV_NOPTS_VALUE)
d80904cc
BC
2385 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2386 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
3766ed72
BC
2387 if (av_write_frame(ctx, &pkt) < 0) {
2388 http_log("Error writing frame to output\n");
3b371676 2389 c->state = HTTPSTATE_SEND_DATA_TRAILER;
3766ed72 2390 }
3b371676 2391
6dc7d80d 2392 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
3b371676
BC
2393 c->cur_frame_bytes = len;
2394 c->buffer_ptr = c->pb_buffer;
2395 c->buffer_end = c->pb_buffer + len;
2396
2397 codec->frame_number++;
2398 if (len == 0) {
2399 av_free_packet(&pkt);
2400 goto redo;
f747e6d3 2401 }
85f07f22 2402 }
3b371676 2403 av_free_packet(&pkt);
85f07f22 2404 }
3b371676 2405 }
85f07f22
FB
2406 break;
2407 default:
2408 case HTTPSTATE_SEND_DATA_TRAILER:
2409 /* last packet test ? */
2effd274 2410 if (c->last_packet_sent || c->is_packetized)
85f07f22 2411 return -1;
2effd274 2412 ctx = &c->fmt_ctx;
85f07f22 2413 /* prepare header */
b92c5452 2414 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2effd274
FB
2415 /* XXX: potential leak */
2416 return -1;
2417 }
8978feda 2418 c->fmt_ctx.pb->seekable = 0;
2effd274 2419 av_write_trailer(ctx);
6dc7d80d 2420 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2effd274
FB
2421 c->buffer_ptr = c->pb_buffer;
2422 c->buffer_end = c->pb_buffer + len;
2423
85f07f22
FB
2424 c->last_packet_sent = 1;
2425 break;
2426 }
2427 return 0;
2428}
2429
2430/* should convert the format at the same time */
bc351386
FB
2431/* send data starting at c->buffer_ptr to the output connection
2432 (either UDP or TCP connection) */
5eb765ef 2433static int http_send_data(HTTPContext *c)
85f07f22 2434{
e240a0bb 2435 int len, ret;
85f07f22 2436
bc351386
FB
2437 for(;;) {
2438 if (c->buffer_ptr >= c->buffer_end) {
2439 ret = http_prepare_data(c);
2440 if (ret < 0)
2441 return -1;
611c5741 2442 else if (ret != 0)
bc351386
FB
2443 /* state change requested */
2444 break;
2effd274 2445 } else {
bc351386
FB
2446 if (c->is_packetized) {
2447 /* RTP data output */
2448 len = c->buffer_end - c->buffer_ptr;
2449 if (len < 4) {
2450 /* fail safe - should never happen */
2451 fail1:
2452 c->buffer_ptr = c->buffer_end;
2effd274
FB
2453 return 0;
2454 }
bc351386
FB
2455 len = (c->buffer_ptr[0] << 24) |
2456 (c->buffer_ptr[1] << 16) |
2457 (c->buffer_ptr[2] << 8) |
2458 (c->buffer_ptr[3]);
2459 if (len > (c->buffer_end - c->buffer_ptr))
2460 goto fail1;
e240a0bb
FB
2461 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2462 /* nothing to send yet: we can wait */
2463 return 0;
2464 }
2465
2466 c->data_count += len;
2467 update_datarate(&c->datarate, c->data_count);
2468 if (c->stream)
2469 c->stream->bytes_served += len;
2470
90abbdba 2471 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
bc351386 2472 /* RTP packets are sent inside the RTSP TCP connection */
ae628ec1 2473 AVIOContext *pb;
bc351386
FB
2474 int interleaved_index, size;
2475 uint8_t header[4];
2476 HTTPContext *rtsp_c;
115329f1 2477
bc351386
FB
2478 rtsp_c = c->rtsp_c;
2479 /* if no RTSP connection left, error */
2480 if (!rtsp_c)
2481 return -1;
2482 /* if already sending something, then wait. */
611c5741 2483 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
bc351386 2484 break;
b92c5452 2485 if (avio_open_dyn_buf(&pb) < 0)
bc351386
FB
2486 goto fail1;
2487 interleaved_index = c->packet_stream_index * 2;
2488 /* RTCP packets are sent at odd indexes */
2489 if (c->buffer_ptr[1] == 200)
2490 interleaved_index++;
2491 /* write RTSP TCP header */
2492 header[0] = '$';
2493 header[1] = interleaved_index;
2494 header[2] = len >> 8;
2495 header[3] = len;
77eb5504 2496 avio_write(pb, header, 4);
bc351386
FB
2497 /* write RTP packet data */
2498 c->buffer_ptr += 4;
77eb5504 2499 avio_write(pb, c->buffer_ptr, len);
6dc7d80d 2500 size = avio_close_dyn_buf(pb, &c->packet_buffer);
bc351386
FB
2501 /* prepare asynchronous TCP sending */
2502 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2503 rtsp_c->packet_buffer_end = c->packet_buffer + size;
e240a0bb 2504 c->buffer_ptr += len;
115329f1 2505
e240a0bb 2506 /* send everything we can NOW */
c60202df
AB
2507 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2508 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
611c5741 2509 if (len > 0)
e240a0bb 2510 rtsp_c->packet_buffer_ptr += len;
e240a0bb
FB
2511 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2512 /* if we could not send all the data, we will
2513 send it later, so a new state is needed to
2514 "lock" the RTSP TCP connection */
2515 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2516 break;
611c5741 2517 } else
e240a0bb
FB
2518 /* all data has been sent */
2519 av_freep(&c->packet_buffer);
e240a0bb
FB
2520 } else {
2521 /* send RTP packet directly in UDP */
bc351386 2522 c->buffer_ptr += 4;
b263bf66
AK
2523 ffurl_write(c->rtp_handles[c->packet_stream_index],
2524 c->buffer_ptr, len);
e240a0bb
FB
2525 c->buffer_ptr += len;
2526 /* here we continue as we can send several packets per 10 ms slot */
bc351386 2527 }
bc351386
FB
2528 } else {
2529 /* TCP data output */
c60202df 2530 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
bc351386 2531 if (len < 0) {
28c4741a
MS
2532 if (ff_neterrno() != AVERROR(EAGAIN) &&
2533 ff_neterrno() != AVERROR(EINTR))
bc351386
FB
2534 /* error : close connection */
2535 return -1;
611c5741 2536 else
bc351386 2537 return 0;
611c5741 2538 } else
bc351386 2539 c->buffer_ptr += len;
611c5741 2540
e240a0bb
FB
2541 c->data_count += len;
2542 update_datarate(&c->datarate, c->data_count);
2543 if (c->stream)
2544 c->stream->bytes_served += len;
2545 break;
2effd274 2546 }
85f07f22 2547 }
bc351386 2548 } /* for(;;) */
85f07f22
FB
2549 return 0;
2550}
2551
2552static int http_start_receive_data(HTTPContext *c)
2553{
2554 int fd;
2555
2556 if (c->stream->feed_opened)
2557 return -1;
2558
e322ea48
PG
2559 /* Don't permit writing to this one */
2560 if (c->stream->readonly)
2561 return -1;
2562
85f07f22
FB
2563 /* open feed */
2564 fd = open(c->stream->feed_filename, O_RDWR);
929a9b75
BC
2565 if (fd < 0) {
2566 http_log("Error opening feeder file: %s\n", strerror(errno));
85f07f22 2567 return -1;
929a9b75 2568 }
85f07f22 2569 c->feed_fd = fd;
115329f1 2570
861ec13a
BC
2571 if (c->stream->truncate) {
2572 /* truncate feed file */
2573 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
861ec13a 2574 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
0de1319e
MR
2575 if (ftruncate(c->feed_fd, FFM_PACKET_SIZE) < 0) {
2576 http_log("Error truncating feed file: %s\n", strerror(errno));
2577 return -1;
2578 }
861ec13a 2579 } else {
1f611549
BC
2580 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2581 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2582 return -1;
2583 }
861ec13a
BC
2584 }
2585
7e24aa0c 2586 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
85f07f22
FB
2587 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2588 lseek(fd, 0, SEEK_SET);
2589
2590 /* init buffer input */
2591 c->buffer_ptr = c->buffer;
2592 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2593 c->stream->feed_opened = 1;
fd7bec5e 2594 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
85f07f22
FB
2595 return 0;
2596}
115329f1 2597
85f07f22
FB
2598static int http_receive_data(HTTPContext *c)
2599{
85f07f22 2600 HTTPContext *c1;
19c8c4ec 2601 int len, loop_run = 0;
85f07f22 2602
19c8c4ec
RB
2603 while (c->chunked_encoding && !c->chunk_size &&
2604 c->buffer_end > c->buffer_ptr) {
2605 /* read chunk header, if present */
2606 len = recv(c->fd, c->buffer_ptr, 1, 0);
2607
2608 if (len < 0) {
28c4741a
MS
2609 if (ff_neterrno() != AVERROR(EAGAIN) &&
2610 ff_neterrno() != AVERROR(EINTR))
19c8c4ec
RB
2611 /* error : close connection */
2612 goto fail;
686d6f40 2613 return 0;
19c8c4ec
RB
2614 } else if (len == 0) {
2615 /* end of connection : close it */
2616 goto fail;
2617 } else if (c->buffer_ptr - c->buffer >= 2 &&
2618 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2619 c->chunk_size = strtol(c->buffer, 0, 16);
2620 if (c->chunk_size == 0) // end of stream
2621 goto fail;
2622 c->buffer_ptr = c->buffer;
2623 break;
2624 } else if (++loop_run > 10) {
2625 /* no chunk header, abort */
2626 goto fail;
2627 } else {
2628 c->buffer_ptr++;
2629 }
2630 }
a6e14edd 2631
19c8c4ec
RB
2632 if (c->buffer_end > c->buffer_ptr) {
2633 len = recv(c->fd, c->buffer_ptr,
2634 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
a6e14edd 2635 if (len < 0) {
28c4741a
MS
2636 if (ff_neterrno() != AVERROR(EAGAIN) &&
2637 ff_neterrno() != AVERROR(EINTR))
a6e14edd
PG
2638 /* error : close connection */
2639 goto fail;
611c5741 2640 } else if (len == 0)
a6e14edd
PG
2641 /* end of connection : close it */
2642 goto fail;
611c5741 2643 else {
19c8c4ec 2644 c->chunk_size -= len;
a6e14edd
PG
2645 c->buffer_ptr += len;
2646 c->data_count += len;
5eb765ef 2647 update_datarate(&c->datarate, c->data_count);
a6e14edd
PG
2648 }
2649 }
2650
d445a7e9
PG
2651 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2652 if (c->buffer[0] != 'f' ||
2653 c->buffer[1] != 'm') {
2654 http_log("Feed stream has become desynchronized -- disconnecting\n");
2655 goto fail;
2656 }
2657 }
2658
85f07f22 2659 if (c->buffer_ptr >= c->buffer_end) {
f747e6d3 2660 FFStream *feed = c->stream;
85f07f22
FB
2661 /* a packet has been received : write it in the store, except
2662 if header */
2663 if (c->data_count > FFM_PACKET_SIZE) {
115329f1 2664
949b1a13 2665 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
85f07f22
FB
2666 /* XXX: use llseek or url_seek */
2667 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
929a9b75
BC
2668 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2669 http_log("Error writing to feed file: %s\n", strerror(errno));
2670 goto fail;
2671 }
115329f1 2672
85f07f22
FB
2673 feed->feed_write_index += FFM_PACKET_SIZE;
2674 /* update file size */
2675 if (feed->feed_write_index > c->stream->feed_size)
2676 feed->feed_size = feed->feed_write_index;
2677
2678 /* handle wrap around if max file size reached */
6b0bdc75 2679 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
85f07f22
FB
2680 feed->feed_write_index = FFM_PACKET_SIZE;
2681
2682 /* write index */
2779cdad
PK
2683 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2684 http_log("Error writing index to feed file: %s\n", strerror(errno));
2685 goto fail;
2686 }
85f07f22
FB
2687
2688 /* wake up any waiting connections */
2689 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
115329f1 2690 if (c1->state == HTTPSTATE_WAIT_FEED &&
611c5741 2691 c1->stream->feed == c->stream->feed)
85f07f22 2692 c1->state = HTTPSTATE_SEND_DATA;
85f07f22 2693 }
f747e6d3
PG
2694 } else {
2695 /* We have a header in our hands that contains useful data */
50f2dfad 2696 AVFormatContext *s = avformat_alloc_context();
ae628ec1 2697 AVIOContext *pb;
bd7cf6ad 2698 AVInputFormat *fmt_in;
f747e6d3
PG
2699 int i;
2700
50f2dfad
AK
2701 if (!s)
2702 goto fail;
2703
bd7cf6ad
FB
2704 /* use feed output format name to find corresponding input format */
2705 fmt_in = av_find_input_format(feed->fmt->name);
2706 if (!fmt_in)
2707 goto fail;
2708
83fddaeb
AK
2709 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2710 0, NULL, NULL, NULL, NULL);
8978feda 2711 pb->seekable = 0;
697efa36 2712
50f2dfad
AK
2713 s->pb = pb;
2714 if (avformat_open_input(&s, c->stream->feed_filename, fmt_in, NULL) < 0) {
e6f0deab
BC
2715 av_free(pb);
2716 goto fail;
2717 }
f747e6d3
PG
2718
2719 /* Now we have the actual streams */
f2972c8c 2720 if (s->nb_streams != feed->nb_streams) {
cd3716b9 2721 avformat_close_input(&s);
86771c68 2722 av_free(pb);
77553ae3
BC
2723 http_log("Feed '%s' stream number does not match registered feed\n",
2724 c->stream->feed_filename);
f747e6d3
PG
2725 goto fail;
2726 }
f2972c8c 2727
cb51aef1
BC
2728 for (i = 0; i < s->nb_streams; i++) {
2729 AVStream *fst = feed->streams[i];
2730 AVStream *st = s->streams[i];
5634f30c 2731 avcodec_copy_context(fst->codec, st->codec);
cb51aef1 2732 }
f2972c8c 2733
cd3716b9 2734 avformat_close_input(&s);
86771c68 2735 av_free(pb);
85f07f22
FB
2736 }
2737 c->buffer_ptr = c->buffer;
2738 }
2739
85f07f22
FB
2740 return 0;
2741 fail:
2742 c->stream->feed_opened = 0;
2743 close(c->feed_fd);
c1593d0e
BC
2744 /* wake up any waiting connections to stop waiting for feed */
2745 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2746 if (c1->state == HTTPSTATE_WAIT_FEED &&
2747 c1->stream->feed == c->stream->feed)
2748 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2749 }
85f07f22
FB
2750 return -1;
2751}
2752
2effd274
FB
2753/********************************************************************/
2754/* RTSP handling */
2755
2756static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2757{
2758 const char *str;
2759 time_t ti;
0156fcf2 2760 struct tm *tm;
2effd274
FB
2761 char buf2[32];
2762
2763 switch(error_number) {
7e665cd3
LA
2764 case RTSP_STATUS_OK:
2765 str = "OK";
2766 break;
2767 case RTSP_STATUS_METHOD:
2768 str = "Method Not Allowed";
2769 break;
2770 case RTSP_STATUS_BANDWIDTH:
2771 str = "Not Enough Bandwidth";
2772 break;
2773 case RTSP_STATUS_SESSION:
2774 str = "Session Not Found";
2775 break;
2776 case RTSP_STATUS_STATE:
2777 str = "Method Not Valid in This State";
2778 break;
2779 case RTSP_STATUS_AGGREGATE:
2780 str = "Aggregate operation not allowed";
2781 break;
2782 case RTSP_STATUS_ONLY_AGGREGATE:
2783 str = "Only aggregate operation allowed";
2784 break;
2785 case RTSP_STATUS_TRANSPORT:
2786 str = "Unsupported transport";
2787 break;
2788 case RTSP_STATUS_INTERNAL:
2789 str = "Internal Server Error";
2790 break;
2791 case RTSP_STATUS_SERVICE:
2792 str = "Service Unavailable";
2793 break;
2794 case RTSP_STATUS_VERSION:
2795 str = "RTSP Version not supported";
2796 break;
2effd274
FB
2797 default:
2798 str = "Unknown Error";
2799 break;
2800 }
115329f1 2801
d9d86e00
AK
2802 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2803 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2effd274
FB
2804
2805 /* output GMT time */
2806 ti = time(NULL);
0156fcf2
HC
2807 tm = gmtime(&ti);
2808 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
d9d86e00 2809 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2effd274
FB
2810}
2811
2812static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2813{
2814 rtsp_reply_header(c, error_number);
d9d86e00 2815 avio_printf(c->pb, "\r\n");
2effd274
FB
2816}
2817
2818static int rtsp_parse_request(HTTPContext *c)
2819{
2820 const char *p, *p1, *p2;
2821 char cmd[32];
2822 char url[1024];
2823 char protocol[32];
2824 char line[1024];
2effd274 2825 int len;
a92be9b8 2826 RTSPMessageHeader header1 = { 0 }, *header = &header1;
115329f1 2827
2effd274
FB
2828 c->buffer_ptr[0] = '\0';
2829 p = c->buffer;
115329f1 2830
2effd274
FB
2831 get_word(cmd, sizeof(cmd), &p);
2832 get_word(url, sizeof(url), &p);
2833 get_word(protocol, sizeof(protocol), &p);
2834
f7d78f36
MR
2835 av_strlcpy(c->method, cmd, sizeof(c->method));
2836 av_strlcpy(c->url, url, sizeof(c->url));
2837 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2effd274 2838
b92c5452 2839 if (avio_open_dyn_buf(&c->pb) < 0) {
2effd274
FB
2840 /* XXX: cannot do more */
2841 c->pb = NULL; /* safety */
2842 return -1;
2843 }
2844
2845 /* check version name */
2846 if (strcmp(protocol, "RTSP/1.0") != 0) {
2847 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2848 goto the_end;
2849 }
2850
2851 /* parse each header line */
2effd274
FB
2852 /* skip to next line */
2853 while (*p != '\n' && *p != '\0')
2854 p++;
2855 if (*p == '\n')
2856 p++;
2857 while (*p != '\0') {
c966c912 2858 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2effd274
FB
2859 if (!p1)
2860 break;
2861 p2 = p1;
2862 if (p2 > p && p2[-1] == '\r')
2863 p2--;
2864 /* skip empty line */
2865 if (p2 == p)
2866 break;
2867 len = p2 - p;
2868 if (len > sizeof(line) - 1)
2869 len = sizeof(line) - 1;
2870 memcpy(line, p, len);
2871 line[len] = '\0';
77223c53 2872 ff_rtsp_parse_line(header, line, NULL, NULL);
2effd274
FB
2873 p = p1 + 1;
2874 }
2875
2876 /* handle sequence number */
2877 c->seq = header->seq;
2878
611c5741 2879 if (!strcmp(cmd, "DESCRIBE"))
2effd274 2880 rtsp_cmd_describe(c, url);
611c5741 2881 else if (!strcmp(cmd, "OPTIONS"))
0df65975 2882 rtsp_cmd_options(c, url);
611c5741 2883 else if (!strcmp(cmd, "SETUP"))
2effd274 2884 rtsp_cmd_setup(c, url, header);
611c5741 2885 else if (!strcmp(cmd, "PLAY"))
2effd274 2886 rtsp_cmd_play(c, url, header);
611c5741 2887 else if (!strcmp(cmd, "PAUSE"))
2effd274 2888 rtsp_cmd_pause(c, url, header);
611c5741 2889 else if (!strcmp(cmd, "TEARDOWN"))
2effd274 2890 rtsp_cmd_teardown(c, url, header);
611c5741 2891 else
2effd274 2892 rtsp_reply_error(c, RTSP_STATUS_METHOD);
611c5741 2893
2effd274 2894 the_end:
6dc7d80d 2895 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2effd274
FB
2896 c->pb = NULL; /* safety */
2897 if (len < 0) {
2898 /* XXX: cannot do more */
2899 return -1;
2900 }
2901 c->buffer_ptr = c->pb_buffer;
2902 c->buffer_end = c->pb_buffer + len;
2903 c->state = RTSPSTATE_SEND_REPLY;
2904 return 0;
2905}
2906
115329f1 2907static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
829ac53d 2908 struct in_addr my_ip)
2effd274 2909{
dd723472 2910 AVFormatContext *avc;
9389b925 2911 AVStream *avs = NULL;
dd723472 2912 int i;
115329f1 2913
8e2fd8e1 2914 avc = avformat_alloc_context();
dd723472 2915 if (avc == NULL) {
2effd274 2916 return -1;
dd723472 2917 }
d2d67e42
AK
2918 av_dict_set(&avc->metadata, "title",
2919 stream->title[0] ? stream->title : "No Title", 0);
dd723472
LA
2920 avc->nb_streams = stream->nb_streams;
2921 if (stream->is_multicast) {
2922 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2923 inet_ntoa(stream->multicast_ip),
2924 stream->multicast_port, stream->multicast_ttl);
43d09faf
MS
2925 } else {
2926 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
dd723472 2927 }
115329f1 2928
9389b925
AJ
2929 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2930 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2931 goto sdp_done;
9389b925
AJ
2932 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2933 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2934 goto sdp_done;
2935
2effd274 2936 for(i = 0; i < stream->nb_streams; i++) {
dd723472
LA
2937 avc->streams[i] = &avs[i];
2938 avc->streams[i]->codec = stream->streams[i]->codec;
2effd274 2939 }
dd723472 2940 *pbuffer = av_mallocz(2048);
c3675dfe 2941 av_sdp_create(&avc, 1, *pbuffer, 2048);
9389b925
AJ
2942
2943 sdp_done:
9389b925 2944 av_free(avc->streams);
d2d67e42 2945 av_dict_free(&avc->metadata);
dd723472 2946 av_free(avc);
9389b925 2947 av_free(avs);
dd723472
LA
2948
2949 return strlen(*pbuffer);
2effd274
FB
2950}
2951
0df65975
AR
2952static void rtsp_cmd_options(HTTPContext *c, const char *url)
2953{
2954// rtsp_reply_header(c, RTSP_STATUS_OK);
d9d86e00
AK
2955 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2956 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2957 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2958 avio_printf(c->pb, "\r\n");
0df65975
AR
2959}
2960
2effd274
FB
2961static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2962{
2963 FFStream *stream;
2964 char path1[1024];
2965 const char *path;
0c1a9eda 2966 uint8_t *content;
829ac53d
FB
2967 int content_length, len;
2968 struct sockaddr_in my_addr;
115329f1 2969
2effd274 2970 /* find which url is asked */
f3bfe388 2971 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2972 path = path1;
2973 if (*path == '/')
2974 path++;
2975
2976 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
2977 if (!stream->is_feed &&
2978 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2effd274
FB
2979 !strcmp(path, stream->filename)) {
2980 goto found;
2981 }
2982 }
2983 /* no stream found */
2984 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2985 return;
2986
2987 found:
2988 /* prepare the media description in sdp format */
829ac53d
FB
2989
2990 /* get the host IP */
2991 len = sizeof(my_addr);
2992 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
829ac53d 2993 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
2effd274
FB
2994 if (content_length < 0) {
2995 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2996 return;
2997 }
2998 rtsp_reply_header(c, RTSP_STATUS_OK);
d9d86e00
AK
2999 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3000 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3001 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3002 avio_printf(c->pb, "\r\n");
77eb5504 3003 avio_write(c->pb, content, content_length);
ea4f8aab 3004 av_free(content);
2effd274
FB
3005}
3006
3007static HTTPContext *find_rtp_session(const char *session_id)
3008{
3009 HTTPContext *c;
3010
3011 if (session_id[0] == '\0')
3012 return NULL;
3013
3014 for(c = first_http_ctx; c != NULL; c = c->next) {
3015 if (!strcmp(c->session_id, session_id))
3016 return c;
3017 }
3018 return NULL;
3019}
3020
a9e534d5 3021static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
2effd274
FB
3022{
3023 RTSPTransportField *th;
3024 int i;
3025
3026 for(i=0;i<h->nb_transports;i++) {
3027 th = &h->transports[i];
90abbdba 3028 if (th->lower_transport == lower_transport)
2effd274
FB
3029 return th;
3030 }
3031 return NULL;
3032}
3033
115329f1 3034static void rtsp_cmd_setup(HTTPContext *c, const char *url,
a9e534d5 3035 RTSPMessageHeader *h)
2effd274
FB
3036{
3037 FFStream *stream;
bacde646 3038 int stream_index, rtp_port, rtcp_port;
2effd274
FB
3039 char buf[1024];
3040 char path1[1024];
3041 const char *path;
3042 HTTPContext *rtp_c;
3043 RTSPTransportField *th;
3044 struct sockaddr_in dest_addr;
3045 RTSPActionServerSetup setup;
115329f1 3046
2effd274 3047 /* find which url is asked */
f3bfe388 3048 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
3049 path = path1;
3050 if (*path == '/')
3051 path++;
3052
3053 /* now check each stream */
3054 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
3055 if (!stream->is_feed &&
3056 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
2effd274
FB
3057 /* accept aggregate filenames only if single stream */
3058 if (!strcmp(path, stream->filename)) {
3059 if (stream->nb_streams != 1) {
3060 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3061 return;
3062 }
3063 stream_index = 0;
3064 goto found;
3065 }
115329f1 3066
2effd274
FB
3067 for(stream_index = 0; stream_index < stream->nb_streams;
3068 stream_index++) {
115329f1 3069 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2effd274
FB
3070 stream->filename, stream_index);
3071 if (!strcmp(path, buf))
3072 goto found;
3073 }
3074 }
3075 }
3076 /* no stream found */
3077 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3078 return;
3079 found:
3080
3081 /* generate session id if needed */
611c5741 3082 if (h->session_id[0] == '\0')
1df93ae9 3083 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
042819c5 3084 av_lfg_get(&random_state), av_lfg_get(&random_state));
2effd274
FB
3085
3086 /* find rtp session, and create it if none found */
3087 rtp_c = find_rtp_session(h->session_id);
3088 if (!rtp_c) {
bc351386 3089 /* always prefer UDP */
90abbdba 3090 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
bc351386 3091 if (!th) {
90abbdba 3092 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
bc351386
FB
3093 if (!th) {
3094 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3095 return;
3096 }
3097 }
3098
3099 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
90abbdba 3100 th->lower_transport);
2effd274
FB
3101 if (!rtp_c) {
3102 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3103 return;
3104 }
3105
3106 /* open input stream */
3107 if (open_input_stream(rtp_c, "") < 0) {
3108 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3109 return;
3110 }
2effd274 3111 }
115329f1 3112
2effd274
FB
3113 /* test if stream is OK (test needed because several SETUP needs
3114 to be done for a given file) */
3115 if (rtp_c->stream != stream) {
3116 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3117 return;
3118 }
115329f1 3119
2effd274
FB
3120 /* test if stream is already set up */
3121 if (rtp_c->rtp_ctx[stream_index]) {
3122 rtsp_reply_error(c, RTSP_STATUS_STATE);
3123 return;
3124 }
3125
3126 /* check transport */
3127 th = find_transport(h, rtp_c->rtp_protocol);
90abbdba 3128 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
2effd274
FB
3129 th->client_port_min <= 0)) {
3130 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3131 return;
3132 }
3133
3134 /* setup default options */
3135 setup.transport_option[0] = '\0';
3136 dest_addr = rtp_c->from_addr;
3137 dest_addr.sin_port = htons(th->client_port_min);
115329f1 3138
2effd274 3139 /* setup stream */
bc351386 3140 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
2effd274
FB
3141 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3142 return;
3143 }
3144
3145 /* now everything is OK, so we can send the connection parameters */
3146 rtsp_reply_header(c, RTSP_STATUS_OK);
3147 /* session ID */
d9d86e00 3148 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2effd274
FB
3149
3150 switch(rtp_c->rtp_protocol) {
90abbdba 3151 case RTSP_LOWER_TRANSPORT_UDP:
bfc6db44
MS
3152 rtp_port = ff_rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3153 rtcp_port = ff_rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
d9d86e00 3154 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
2effd274 3155 "client_port=%d-%d;server_port=%d-%d",
bacde646
LB
3156 th->client_port_min, th->client_port_max,
3157 rtp_port, rtcp_port);
2effd274 3158 break;
90abbdba 3159 case RTSP_LOWER_TRANSPORT_TCP:
d9d86e00 3160 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
2effd274
FB
3161 stream_index * 2, stream_index * 2 + 1);
3162 break;
3163 default:
3164 break;
3165 }
611c5741 3166 if (setup.transport_option[0] != '\0')
d9d86e00
AK
3167 avio_printf(c->pb, ";%s", setup.transport_option);
3168 avio_printf(c->pb, "\r\n");
115329f1 3169
2effd274 3170
d9d86e00 3171 avio_printf(c->pb, "\r\n");
2effd274
FB
3172}
3173
3174
3175/* find an rtp connection by using the session ID. Check consistency
3176 with filename */
115329f1 3177static HTTPContext *find_rtp_session_with_url(const char *url,
2effd274
FB
3178 const char *session_id)
3179{
3180 HTTPContext *rtp_c;
3181 char path1[1024];
3182 const char *path;
94d9ad5f 3183 char buf[1024];
c2ca851b 3184 int s, len;
2effd274
FB
3185
3186 rtp_c = find_rtp_session(session_id);
3187 if (!rtp_c)
3188 return NULL;
3189
3190 /* find which url is asked */
f3bfe388 3191 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
3192 path = path1;
3193 if (*path == '/')
3194 path++;
94d9ad5f
GF
3195 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3196 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3197 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3198 rtp_c->stream->filename, s);
3199 if(!strncmp(path, buf, sizeof(buf))) {
3200 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3201 return rtp_c;
3202 }
3203 }
c2ca851b
MS
3204 len = strlen(path);
3205 if (len > 0 && path[len - 1] == '/' &&
3206 !strncmp(path, rtp_c->stream->filename, len - 1))
3207 return rtp_c;
94d9ad5f 3208 return NULL;
2effd274
FB
3209}
3210
a9e534d5 3211static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
2effd274
FB
3212{
3213 HTTPContext *rtp_c;
3214
3215 rtp_c = find_rtp_session_with_url(url, h->session_id);
3216 if (!rtp_c) {
3217 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3218 return;
3219 }
115329f1 3220
2effd274
FB
3221 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3222 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3223 rtp_c->state != HTTPSTATE_READY) {
3224 rtsp_reply_error(c, RTSP_STATUS_STATE);
3225 return;
3226 }
3227
3228 rtp_c->state = HTTPSTATE_SEND_DATA;
115329f1 3229
2effd274
FB
3230 /* now everything is OK, so we can send the connection parameters */
3231 rtsp_reply_header(c, RTSP_STATUS_OK);
3232 /* session ID */
d9d86e00
AK
3233 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3234 avio_printf(c->pb, "\r\n");
2effd274
FB
3235}
3236
a9e534d5 3237static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
2effd274
FB
3238{
3239 HTTPContext *rtp_c;
3240
3241 rtp_c = find_rtp_session_with_url(url, h->session_id);
3242 if (!rtp_c) {
3243 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3244 return;
3245 }
115329f1 3246
2effd274
FB
3247 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3248 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3249 rtsp_reply_error(c, RTSP_STATUS_STATE);
3250 return;
3251 }
115329f1 3252
2effd274 3253 rtp_c->state = HTTPSTATE_READY;
1bc1cfdd 3254 rtp_c->first_pts = AV_NOPTS_VALUE;
2effd274
FB
3255 /* now everything is OK, so we can send the connection parameters */
3256 rtsp_reply_header(c, RTSP_STATUS_OK);
3257 /* session ID */
d9d86e00
AK
3258 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3259 avio_printf(c->pb, "\r\n");
2effd274
FB
3260}
3261
a9e534d5 3262static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
2effd274
FB
3263{
3264 HTTPContext *rtp_c;
3265
3266 rtp_c = find_rtp_session_with_url(url, h->session_id);
3267 if (!rtp_c) {
3268 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3269 return;
3270 }
115329f1 3271
2effd274
FB
3272 /* now everything is OK, so we can send the connection parameters */
3273 rtsp_reply_header(c, RTSP_STATUS_OK);
3274 /* session ID */
e2d7dc87 3275 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
d9d86e00 3276 avio_printf(c->pb, "\r\n");
e2d7dc87
MW
3277
3278 /* abort the session */
3279 close_connection(rtp_c);
2effd274
FB
3280}
3281
3282
3283/********************************************************************/
3284/* RTP handling */
3285
115329f1 3286static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
bc351386 3287 FFStream *stream, const char *session_id,
90abbdba 3288 enum RTSPLowerTransport rtp_protocol)
2effd274
FB
3289{
3290 HTTPContext *c = NULL;
bc351386 3291 const char *proto_str;
115329f1 3292
2effd274
FB
3293 /* XXX: should output a warning page when coming
3294 close to the connection limit */
3295 if (nb_connections >= nb_max_connections)
3296 goto fail;
115329f1 3297
2effd274
FB
3298 /* add a new connection */
3299 c = av_mallocz(sizeof(HTTPContext));
3300 if (!c)
3301 goto fail;
115329f1 3302
2effd274
FB
3303 c->fd = -1;
3304 c->poll_entry = NULL;
6edd6884 3305 c->from_addr = *from_addr;
2effd274
FB
3306 c->buffer_size = IOBUFFER_INIT_SIZE;
3307 c->buffer = av_malloc(c->buffer_size);
3308 if (!c->buffer)
3309 goto fail;
3310 nb_connections++;
3311 c->stream = stream;
f7d78f36 3312 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
2effd274
FB
3313 c->state = HTTPSTATE_READY;
3314 c->is_packetized = 1;
bc351386
FB
3315 c->rtp_protocol = rtp_protocol;
3316
2effd274 3317 /* protocol is shown in statistics */
bc351386 3318 switch(c->rtp_protocol) {
90abbdba 3319 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
bc351386
FB
3320 proto_str = "MCAST";
3321 break;
90abbdba 3322 case RTSP_LOWER_TRANSPORT_UDP:
bc351386
FB
3323 proto_str = "UDP";
3324 break;
90abbdba 3325 case RTSP_LOWER_TRANSPORT_TCP:
bc351386
FB
3326 proto_str = "TCP";
3327 break;
3328 default:
3329 proto_str = "???";
3330 break;
3331 }