Replace more FFmpeg instances by Libav or ffmpeg.
[libav.git] / ffserver.c
CommitLineData
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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
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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
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22#define _XOPEN_SOURCE 600
23
0f4e8165 24#include "config.h"
b250f9c6 25#if !HAVE_CLOSESOCKET
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26#define closesocket close
27#endif
28#include <string.h>
ea452b54 29#include <strings.h>
0f4e8165 30#include <stdlib.h>
245976da 31#include "libavformat/avformat.h"
3ee53dab 32#include "libavformat/ffm.h"
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33#include "libavformat/network.h"
34#include "libavformat/os_support.h"
302879cb 35#include "libavformat/rtpdec.h"
245976da 36#include "libavformat/rtsp.h"
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37// XXX for ffio_open_dyn_packet_buffer, to be removed
38#include "libavformat/avio_internal.h"
959da985 39#include "libavutil/avstring.h"
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40#include "libavutil/lfg.h"
41#include "libavutil/random_seed.h"
737eb597 42#include "libavutil/parseutils.h"
41d0eb1c 43#include "libavutil/opt.h"
85f07f22 44#include <stdarg.h>
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45#include <unistd.h>
46#include <fcntl.h>
47#include <sys/ioctl.h>
b250f9c6 48#if HAVE_POLL_H
f8cda19e 49#include <poll.h>
b0c858d8 50#endif
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51#include <errno.h>
52#include <sys/time.h>
53#include <time.h>
5eb765ef 54#include <sys/wait.h>
85f07f22 55#include <signal.h>
b250f9c6 56#if HAVE_DLFCN_H
2effd274 57#include <dlfcn.h>
6638d424 58#endif
2effd274 59
4ce5df08 60#include "cmdutils.h"
85f07f22 61
64555bd9 62const char program_name[] = "FFserver";
ea9c581f 63const int program_birth_year = 2000;
86074ed1 64
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65static const OptionDef options[];
66
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67enum HTTPState {
68 HTTPSTATE_WAIT_REQUEST,
69 HTTPSTATE_SEND_HEADER,
70 HTTPSTATE_SEND_DATA_HEADER,
2effd274 71 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
85f07f22 72 HTTPSTATE_SEND_DATA_TRAILER,
115329f1 73 HTTPSTATE_RECEIVE_DATA,
2effd274 74 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
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75 HTTPSTATE_READY,
76
77 RTSPSTATE_WAIT_REQUEST,
78 RTSPSTATE_SEND_REPLY,
bc351386 79 RTSPSTATE_SEND_PACKET,
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80};
81
9507a12e 82static const char *http_state[] = {
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83 "HTTP_WAIT_REQUEST",
84 "HTTP_SEND_HEADER",
85
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86 "SEND_DATA_HEADER",
87 "SEND_DATA",
88 "SEND_DATA_TRAILER",
89 "RECEIVE_DATA",
90 "WAIT_FEED",
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91 "READY",
92
93 "RTSP_WAIT_REQUEST",
94 "RTSP_SEND_REPLY",
bc351386 95 "RTSP_SEND_PACKET",
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96};
97
aff88101 98#define MAX_STREAMS 20
aff88101 99
cde25790 100#define IOBUFFER_INIT_SIZE 8192
85f07f22 101
85f07f22 102/* timeouts are in ms */
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103#define HTTP_REQUEST_TIMEOUT (15 * 1000)
104#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
105
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106#define SYNC_TIMEOUT (10 * 1000)
107
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108typedef struct RTSPActionServerSetup {
109 uint32_t ipaddr;
110 char transport_option[512];
111} RTSPActionServerSetup;
112
5eb765ef 113typedef struct {
0c1a9eda 114 int64_t count1, count2;
c3f58185 115 int64_t time1, time2;
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116} DataRateData;
117
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118/* context associated with one connection */
119typedef struct HTTPContext {
120 enum HTTPState state;
121 int fd; /* socket file descriptor */
122 struct sockaddr_in from_addr; /* origin */
123 struct pollfd *poll_entry; /* used when polling */
c3f58185 124 int64_t timeout;
0c1a9eda 125 uint8_t *buffer_ptr, *buffer_end;
85f07f22 126 int http_error;
edfdd798 127 int post;
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128 int chunked_encoding;
129 int chunk_size; /* 0 if it needs to be read */
85f07f22 130 struct HTTPContext *next;
42a63c6a 131 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
0c1a9eda 132 int64_t data_count;
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133 /* feed input */
134 int feed_fd;
135 /* input format handling */
136 AVFormatContext *fmt_in;
c3f58185 137 int64_t start_time; /* In milliseconds - this wraps fairly often */
0c1a9eda 138 int64_t first_pts; /* initial pts value */
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139 int64_t cur_pts; /* current pts value from the stream in us */
140 int64_t cur_frame_duration; /* duration of the current frame in us */
141 int cur_frame_bytes; /* output frame size, needed to compute
142 the time at which we send each
143 packet */
144 int pts_stream_index; /* stream we choose as clock reference */
145 int64_t cur_clock; /* current clock reference value in us */
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146 /* output format handling */
147 struct FFStream *stream;
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148 /* -1 is invalid stream */
149 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
150 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
151 int switch_pending;
2effd274 152 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
85f07f22 153 int last_packet_sent; /* true if last data packet was sent */
7434ba6d 154 int suppress_log;
5eb765ef 155 DataRateData datarate;
3120d2a2 156 int wmp_client_id;
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157 char protocol[16];
158 char method[16];
159 char url[128];
cde25790 160 int buffer_size;
0c1a9eda 161 uint8_t *buffer;
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162 int is_packetized; /* if true, the stream is packetized */
163 int packet_stream_index; /* current stream for output in state machine */
115329f1 164
2effd274 165 /* RTSP state specific */
0c1a9eda 166 uint8_t *pb_buffer; /* XXX: use that in all the code */
ae628ec1 167 AVIOContext *pb;
2effd274 168 int seq; /* RTSP sequence number */
115329f1 169
2effd274 170 /* RTP state specific */
90abbdba 171 enum RTSPLowerTransport rtp_protocol;
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172 char session_id[32]; /* session id */
173 AVFormatContext *rtp_ctx[MAX_STREAMS];
e240a0bb 174
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175 /* RTP/UDP specific */
176 URLContext *rtp_handles[MAX_STREAMS];
177
178 /* RTP/TCP specific */
179 struct HTTPContext *rtsp_c;
180 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
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181} HTTPContext;
182
183/* each generated stream is described here */
184enum StreamType {
185 STREAM_TYPE_LIVE,
186 STREAM_TYPE_STATUS,
cde25790 187 STREAM_TYPE_REDIRECT,
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188};
189
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190enum IPAddressAction {
191 IP_ALLOW = 1,
192 IP_DENY,
193};
194
195typedef struct IPAddressACL {
196 struct IPAddressACL *next;
197 enum IPAddressAction action;
efa04ce2 198 /* These are in host order */
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199 struct in_addr first;
200 struct in_addr last;
201} IPAddressACL;
202
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203/* description of each stream of the ffserver.conf file */
204typedef struct FFStream {
205 enum StreamType stream_type;
206 char filename[1024]; /* stream filename */
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207 struct FFStream *feed; /* feed we are using (can be null if
208 coming from file) */
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209 AVFormatParameters *ap_in; /* input parameters */
210 AVInputFormat *ifmt; /* if non NULL, force input format */
bd7cf6ad 211 AVOutputFormat *fmt;
8256c0a3 212 IPAddressACL *acl;
58f48adb 213 char dynamic_acl[1024];
85f07f22 214 int nb_streams;
42a63c6a 215 int prebuffer; /* Number of millseconds early to start */
c3f58185 216 int64_t max_time; /* Number of milliseconds to run */
79c4ea3c 217 int send_on_key;
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218 AVStream *streams[MAX_STREAMS];
219 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
220 char feed_filename[1024]; /* file name of the feed storage, or
221 input file name for a stream */
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222 char author[512];
223 char title[512];
224 char copyright[512];
225 char comment[512];
cde25790 226 pid_t pid; /* Of ffmpeg process */
5eb765ef 227 time_t pid_start; /* Of ffmpeg process */
cde25790 228 char **child_argv;
85f07f22 229 struct FFStream *next;
177d2564 230 unsigned bandwidth; /* bandwidth, in kbits/s */
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231 /* RTSP options */
232 char *rtsp_option;
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233 /* multicast specific */
234 int is_multicast;
235 struct in_addr multicast_ip;
236 int multicast_port; /* first port used for multicast */
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237 int multicast_ttl;
238 int loop; /* if true, send the stream in loops (only meaningful if file) */
829ac53d 239
85f07f22 240 /* feed specific */
2effd274 241 int feed_opened; /* true if someone is writing to the feed */
85f07f22 242 int is_feed; /* true if it is a feed */
e322ea48 243 int readonly; /* True if writing is prohibited to the file */
861ec13a 244 int truncate; /* True if feeder connection truncate the feed file */
a6e14edd 245 int conns_served;
0c1a9eda 246 int64_t bytes_served;
6b0bdc75 247 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
8bfb108b 248 int64_t feed_write_index; /* current write position in feed (it wraps around) */
0c1a9eda 249 int64_t feed_size; /* current size of feed */
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250 struct FFStream *next_feed;
251} FFStream;
252
253typedef struct FeedData {
254 long long data_count;
8bfb108b 255 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
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256} FeedData;
257
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258static struct sockaddr_in my_http_addr;
259static struct sockaddr_in my_rtsp_addr;
2effd274 260
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261static char logfilename[1024];
262static HTTPContext *first_http_ctx;
263static FFStream *first_feed; /* contains only feeds */
264static FFStream *first_stream; /* contains all streams, including feeds */
85f07f22 265
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266static void new_connection(int server_fd, int is_rtsp);
267static void close_connection(HTTPContext *c);
268
269/* HTTP handling */
270static int handle_connection(HTTPContext *c);
85f07f22 271static int http_parse_request(HTTPContext *c);
5eb765ef 272static int http_send_data(HTTPContext *c);
dca21085 273static void compute_status(HTTPContext *c);
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274static int open_input_stream(HTTPContext *c, const char *info);
275static int http_start_receive_data(HTTPContext *c);
276static int http_receive_data(HTTPContext *c);
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277
278/* RTSP handling */
279static int rtsp_parse_request(HTTPContext *c);
280static void rtsp_cmd_describe(HTTPContext *c, const char *url);
0df65975 281static void rtsp_cmd_options(HTTPContext *c, const char *url);
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282static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPMessageHeader *h);
283static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h);
284static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h);
285static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h);
2effd274 286
829ac53d 287/* SDP handling */
115329f1 288static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
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289 struct in_addr my_ip);
290
2effd274 291/* RTP handling */
115329f1 292static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
bc351386 293 FFStream *stream, const char *session_id,
90abbdba 294 enum RTSPLowerTransport rtp_protocol);
115329f1 295static int rtp_new_av_stream(HTTPContext *c,
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296 int stream_index, struct sockaddr_in *dest_addr,
297 HTTPContext *rtsp_c);
85f07f22 298
cde25790 299static const char *my_program_name;
d6562d2c 300static const char *my_program_dir;
cde25790 301
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302static const char *config_filename = "/etc/ffserver.conf";
303
2ac887ba 304static int ffserver_debug;
2effd274 305static int ffserver_daemon;
2ac887ba 306static int no_launch;
5eb765ef 307static int need_to_start_children;
2ac887ba 308
1c9ff179
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309/* maximum number of simultaneous HTTP connections */
310static unsigned int nb_max_http_connections = 2000;
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311static unsigned int nb_max_connections = 5;
312static unsigned int nb_connections;
85f07f22 313
f69bb0cc 314static uint64_t max_bandwidth = 1000;
1ad8289e 315static uint64_t current_bandwidth;
42a63c6a 316
c3f58185 317static int64_t cur_time; // Making this global saves on passing it around everywhere
5eb765ef 318
042819c5 319static AVLFG random_state;
1df93ae9 320
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321static FILE *logfile = NULL;
322
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323/* FIXME: make ffserver work with IPv6 */
324/* resolve host with also IP address parsing */
325static int resolve_host(struct in_addr *sin_addr, const char *hostname)
326{
327
328 if (!ff_inet_aton(hostname, sin_addr)) {
329#if HAVE_GETADDRINFO
330 struct addrinfo *ai, *cur;
331 struct addrinfo hints;
332 memset(&hints, 0, sizeof(hints));
333 hints.ai_family = AF_INET;
334 if (getaddrinfo(hostname, NULL, &hints, &ai))
335 return -1;
336 /* getaddrinfo returns a linked list of addrinfo structs.
337 * Even if we set ai_family = AF_INET above, make sure
338 * that the returned one actually is of the correct type. */
339 for (cur = ai; cur; cur = cur->ai_next) {
340 if (cur->ai_family == AF_INET) {
341 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
342 freeaddrinfo(ai);
343 return 0;
344 }
345 }
346 freeaddrinfo(ai);
347 return -1;
348#else
349 struct hostent *hp;
350 hp = gethostbyname(hostname);
351 if (!hp)
352 return -1;
353 memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
354#endif
355 }
356 return 0;
357}
358
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359static char *ctime1(char *buf2)
360{
361 time_t ti;
362 char *p;
363
364 ti = time(NULL);
365 p = ctime(&ti);
366 strcpy(buf2, p);
367 p = buf2 + strlen(p) - 1;
368 if (*p == '\n')
369 *p = '\0';
370 return buf2;
371}
372
bcd3ce59 373static void http_vlog(const char *fmt, va_list vargs)
85f07f22 374{
124ed1c0 375 static int print_prefix = 1;
7434ba6d 376 if (logfile) {
124ed1c0 377 if (print_prefix) {
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378 char buf[32];
379 ctime1(buf);
380 fprintf(logfile, "%s ", buf);
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381 }
382 print_prefix = strstr(fmt, "\n") != NULL;
bcd3ce59 383 vfprintf(logfile, fmt, vargs);
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384 fflush(logfile);
385 }
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386}
387
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388#ifdef __GNUC__
389__attribute__ ((format (printf, 1, 2)))
390#endif
391static void http_log(const char *fmt, ...)
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392{
393 va_list vargs;
394 va_start(vargs, fmt);
395 http_vlog(fmt, vargs);
396 va_end(vargs);
397}
398
399static void http_av_log(void *ptr, int level, const char *fmt, va_list vargs)
400{
401 static int print_prefix = 1;
402 AVClass *avc = ptr ? *(AVClass**)ptr : NULL;
49ceb58b 403 if (level > av_log_get_level())
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404 return;
405 if (print_prefix && avc)
59e7894c 406 http_log("[%s @ %p]", avc->item_name(ptr), ptr);
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407 print_prefix = strstr(fmt, "\n") != NULL;
408 http_vlog(fmt, vargs);
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409}
410
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411static void log_connection(HTTPContext *c)
412{
115329f1 413 if (c->suppress_log)
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414 return;
415
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416 http_log("%s - - [%s] \"%s %s\" %d %"PRId64"\n",
417 inet_ntoa(c->from_addr.sin_addr), c->method, c->url,
6edd6884 418 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
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419}
420
0c1a9eda 421static void update_datarate(DataRateData *drd, int64_t count)
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422{
423 if (!drd->time1 && !drd->count1) {
424 drd->time1 = drd->time2 = cur_time;
425 drd->count1 = drd->count2 = count;
eeffbdea 426 } else if (cur_time - drd->time2 > 5000) {
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427 drd->time1 = drd->time2;
428 drd->count1 = drd->count2;
429 drd->time2 = cur_time;
430 drd->count2 = count;
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431 }
432}
433
434/* In bytes per second */
0c1a9eda 435static int compute_datarate(DataRateData *drd, int64_t count)
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436{
437 if (cur_time == drd->time1)
438 return 0;
115329f1 439
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440 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
441}
442
a782f209 443
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444static void start_children(FFStream *feed)
445{
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446 if (no_launch)
447 return;
448
cde25790 449 for (; feed; feed = feed->next) {
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450 if (feed->child_argv && !feed->pid) {
451 feed->pid_start = time(0);
452
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453 feed->pid = fork();
454
455 if (feed->pid < 0) {
b4befb99 456 http_log("Unable to create children\n");
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457 exit(1);
458 }
459 if (!feed->pid) {
460 /* In child */
461 char pathname[1024];
462 char *slash;
463 int i;
464
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465 av_strlcpy(pathname, my_program_name, sizeof(pathname));
466
467 slash = strrchr(pathname, '/');
468 if (!slash)
469 slash = pathname;
470 else
471 slash++;
472 strcpy(slash, "ffmpeg");
473
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474 http_log("Launch commandline: ");
475 http_log("%s ", pathname);
476 for (i = 1; feed->child_argv[i] && feed->child_argv[i][0]; i++)
477 http_log("%s ", feed->child_argv[i]);
478 http_log("\n");
40444a59 479
611c5741 480 for (i = 3; i < 256; i++)
5eb765ef 481 close(i);
cde25790 482
5eb765ef 483 if (!ffserver_debug) {
2ac887ba 484 i = open("/dev/null", O_RDWR);
3296409d 485 if (i != -1) {
2ac887ba 486 dup2(i, 0);
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487 dup2(i, 1);
488 dup2(i, 2);
5eb765ef 489 close(i);
3296409d 490 }
2ac887ba 491 }
cde25790 492
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493 /* This is needed to make relative pathnames work */
494 chdir(my_program_dir);
495
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496 signal(SIGPIPE, SIG_DFL);
497
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498 execvp(pathname, feed->child_argv);
499
500 _exit(1);
501 }
502 }
503 }
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504}
505
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506/* open a listening socket */
507static int socket_open_listen(struct sockaddr_in *my_addr)
85f07f22 508{
2effd274 509 int server_fd, tmp;
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510
511 server_fd = socket(AF_INET,SOCK_STREAM,0);
512 if (server_fd < 0) {
513 perror ("socket");
514 return -1;
515 }
115329f1 516
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517 tmp = 1;
518 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
519
2effd274 520 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
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521 char bindmsg[32];
522 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
523 perror (bindmsg);
d96633bb 524 closesocket(server_fd);
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525 return -1;
526 }
115329f1 527
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528 if (listen (server_fd, 5) < 0) {
529 perror ("listen");
d96633bb 530 closesocket(server_fd);
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531 return -1;
532 }
ba472aaf 533 ff_socket_nonblock(server_fd, 1);
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534
535 return server_fd;
536}
537
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538/* start all multicast streams */
539static void start_multicast(void)
540{
541 FFStream *stream;
542 char session_id[32];
543 HTTPContext *rtp_c;
544 struct sockaddr_in dest_addr;
545 int default_port, stream_index;
546
547 default_port = 6000;
548 for(stream = first_stream; stream != NULL; stream = stream->next) {
549 if (stream->is_multicast) {
550 /* open the RTP connection */
1df93ae9 551 snprintf(session_id, sizeof(session_id), "%08x%08x",
042819c5 552 av_lfg_get(&random_state), av_lfg_get(&random_state));
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553
554 /* choose a port if none given */
555 if (stream->multicast_port == 0) {
556 stream->multicast_port = default_port;
557 default_port += 100;
558 }
559
560 dest_addr.sin_family = AF_INET;
561 dest_addr.sin_addr = stream->multicast_ip;
562 dest_addr.sin_port = htons(stream->multicast_port);
563
115329f1 564 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
90abbdba 565 RTSP_LOWER_TRANSPORT_UDP_MULTICAST);
611c5741 566 if (!rtp_c)
6edd6884 567 continue;
611c5741 568
6edd6884 569 if (open_input_stream(rtp_c, "") < 0) {
b4befb99
BC
570 http_log("Could not open input stream for stream '%s'\n",
571 stream->filename);
6edd6884
FB
572 continue;
573 }
574
6edd6884 575 /* open each RTP stream */
115329f1 576 for(stream_index = 0; stream_index < stream->nb_streams;
6edd6884 577 stream_index++) {
115329f1 578 dest_addr.sin_port = htons(stream->multicast_port +
6edd6884 579 2 * stream_index);
bc351386 580 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
b4befb99
BC
581 http_log("Could not open output stream '%s/streamid=%d'\n",
582 stream->filename, stream_index);
0fa45e19 583 exit(1);
6edd6884
FB
584 }
585 }
586
587 /* change state to send data */
588 rtp_c->state = HTTPSTATE_SEND_DATA;
589 }
590 }
591}
2effd274
FB
592
593/* main loop of the http server */
594static int http_server(void)
595{
d2a1ea1d
BC
596 int server_fd = 0, rtsp_server_fd = 0;
597 int ret, delay, delay1;
1c9ff179 598 struct pollfd *poll_table, *poll_entry;
2effd274
FB
599 HTTPContext *c, *c_next;
600
a7f361eb 601 if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
1c9ff179
SS
602 http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
603 return -1;
604 }
605
d2a1ea1d 606 if (my_http_addr.sin_port) {
2b9cd1e7
BC
607 server_fd = socket_open_listen(&my_http_addr);
608 if (server_fd < 0)
609 return -1;
d2a1ea1d 610 }
85f07f22 611
d2a1ea1d 612 if (my_rtsp_addr.sin_port) {
2b9cd1e7
BC
613 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
614 if (rtsp_server_fd < 0)
615 return -1;
d2a1ea1d
BC
616 }
617
618 if (!rtsp_server_fd && !server_fd) {
619 http_log("HTTP and RTSP disabled.\n");
620 return -1;
621 }
115329f1 622
a3341b9d 623 http_log("FFserver started.\n");
85f07f22 624
cde25790
PG
625 start_children(first_feed);
626
6edd6884
FB
627 start_multicast();
628
85f07f22
FB
629 for(;;) {
630 poll_entry = poll_table;
d2a1ea1d 631 if (server_fd) {
2b9cd1e7
BC
632 poll_entry->fd = server_fd;
633 poll_entry->events = POLLIN;
634 poll_entry++;
d2a1ea1d
BC
635 }
636 if (rtsp_server_fd) {
2b9cd1e7
BC
637 poll_entry->fd = rtsp_server_fd;
638 poll_entry->events = POLLIN;
639 poll_entry++;
d2a1ea1d 640 }
2effd274 641
85f07f22
FB
642 /* wait for events on each HTTP handle */
643 c = first_http_ctx;
2effd274 644 delay = 1000;
85f07f22
FB
645 while (c != NULL) {
646 int fd;
647 fd = c->fd;
648 switch(c->state) {
2effd274
FB
649 case HTTPSTATE_SEND_HEADER:
650 case RTSPSTATE_SEND_REPLY:
bc351386 651 case RTSPSTATE_SEND_PACKET:
85f07f22
FB
652 c->poll_entry = poll_entry;
653 poll_entry->fd = fd;
2effd274 654 poll_entry->events = POLLOUT;
85f07f22
FB
655 poll_entry++;
656 break;
85f07f22
FB
657 case HTTPSTATE_SEND_DATA_HEADER:
658 case HTTPSTATE_SEND_DATA:
659 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
660 if (!c->is_packetized) {
661 /* for TCP, we output as much as we can (may need to put a limit) */
662 c->poll_entry = poll_entry;
663 poll_entry->fd = fd;
664 poll_entry->events = POLLOUT;
665 poll_entry++;
666 } else {
e240a0bb
FB
667 /* when ffserver is doing the timing, we work by
668 looking at which packet need to be sent every
669 10 ms */
670 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
671 if (delay1 < delay)
672 delay = delay1;
2effd274 673 }
85f07f22 674 break;
2effd274 675 case HTTPSTATE_WAIT_REQUEST:
85f07f22 676 case HTTPSTATE_RECEIVE_DATA:
85f07f22 677 case HTTPSTATE_WAIT_FEED:
2effd274 678 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
679 /* need to catch errors */
680 c->poll_entry = poll_entry;
681 poll_entry->fd = fd;
a6e14edd 682 poll_entry->events = POLLIN;/* Maybe this will work */
85f07f22
FB
683 poll_entry++;
684 break;
685 default:
686 c->poll_entry = NULL;
687 break;
688 }
689 c = c->next;
690 }
691
692 /* wait for an event on one connection. We poll at least every
693 second to handle timeouts */
694 do {
2effd274 695 ret = poll(poll_table, poll_entry - poll_table, delay);
28c4741a
MS
696 if (ret < 0 && ff_neterrno() != AVERROR(EAGAIN) &&
697 ff_neterrno() != AVERROR(EINTR))
53e2f9ca 698 return -1;
e8d658df 699 } while (ret < 0);
115329f1 700
c3f58185 701 cur_time = av_gettime() / 1000;
85f07f22 702
5eb765ef
PG
703 if (need_to_start_children) {
704 need_to_start_children = 0;
705 start_children(first_feed);
706 }
707
85f07f22 708 /* now handle the events */
2effd274
FB
709 for(c = first_http_ctx; c != NULL; c = c_next) {
710 c_next = c->next;
711 if (handle_connection(c) < 0) {
85f07f22 712 /* close and free the connection */
7434ba6d 713 log_connection(c);
2effd274 714 close_connection(c);
85f07f22
FB
715 }
716 }
717
85f07f22 718 poll_entry = poll_table;
d2a1ea1d 719 if (server_fd) {
2b9cd1e7
BC
720 /* new HTTP connection request ? */
721 if (poll_entry->revents & POLLIN)
722 new_connection(server_fd, 0);
723 poll_entry++;
d2a1ea1d
BC
724 }
725 if (rtsp_server_fd) {
2b9cd1e7
BC
726 /* new RTSP connection request ? */
727 if (poll_entry->revents & POLLIN)
728 new_connection(rtsp_server_fd, 1);
d2a1ea1d 729 }
85f07f22
FB
730 }
731}
732
2effd274
FB
733/* start waiting for a new HTTP/RTSP request */
734static void start_wait_request(HTTPContext *c, int is_rtsp)
85f07f22 735{
2effd274
FB
736 c->buffer_ptr = c->buffer;
737 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
738
739 if (is_rtsp) {
740 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
741 c->state = RTSPSTATE_WAIT_REQUEST;
742 } else {
743 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
744 c->state = HTTPSTATE_WAIT_REQUEST;
745 }
746}
747
0bdd8b85
BC
748static void http_send_too_busy_reply(int fd)
749{
750 char buffer[300];
751 int len = snprintf(buffer, sizeof(buffer),
2a22187f 752 "HTTP/1.0 503 Server too busy\r\n"
0bdd8b85
BC
753 "Content-type: text/html\r\n"
754 "\r\n"
755 "<html><head><title>Too busy</title></head><body>\r\n"
756 "<p>The server is too busy to serve your request at this time.</p>\r\n"
757 "<p>The number of current connections is %d, and this exceeds the limit of %d.</p>\r\n"
758 "</body></html>\r\n",
759 nb_connections, nb_max_connections);
760 send(fd, buffer, len, 0);
761}
762
763
2effd274
FB
764static void new_connection(int server_fd, int is_rtsp)
765{
766 struct sockaddr_in from_addr;
767 int fd, len;
768 HTTPContext *c = NULL;
769
770 len = sizeof(from_addr);
115329f1 771 fd = accept(server_fd, (struct sockaddr *)&from_addr,
2effd274 772 &len);
050056d0
BC
773 if (fd < 0) {
774 http_log("error during accept %s\n", strerror(errno));
2effd274 775 return;
050056d0 776 }
ba472aaf 777 ff_socket_nonblock(fd, 1);
2effd274 778
0bdd8b85
BC
779 if (nb_connections >= nb_max_connections) {
780 http_send_too_busy_reply(fd);
2effd274 781 goto fail;
0bdd8b85 782 }
115329f1 783
2effd274
FB
784 /* add a new connection */
785 c = av_mallocz(sizeof(HTTPContext));
786 if (!c)
787 goto fail;
115329f1 788
2effd274
FB
789 c->fd = fd;
790 c->poll_entry = NULL;
791 c->from_addr = from_addr;
792 c->buffer_size = IOBUFFER_INIT_SIZE;
793 c->buffer = av_malloc(c->buffer_size);
794 if (!c->buffer)
795 goto fail;
8bc80f8b
PG
796
797 c->next = first_http_ctx;
798 first_http_ctx = c;
2effd274 799 nb_connections++;
115329f1 800
2effd274
FB
801 start_wait_request(c, is_rtsp);
802
803 return;
804
805 fail:
806 if (c) {
807 av_free(c->buffer);
808 av_free(c);
809 }
d96633bb 810 closesocket(fd);
2effd274
FB
811}
812
813static void close_connection(HTTPContext *c)
814{
815 HTTPContext **cp, *c1;
816 int i, nb_streams;
817 AVFormatContext *ctx;
818 URLContext *h;
819 AVStream *st;
820
821 /* remove connection from list */
822 cp = &first_http_ctx;
823 while ((*cp) != NULL) {
824 c1 = *cp;
611c5741 825 if (c1 == c)
2effd274 826 *cp = c->next;
611c5741 827 else
2effd274 828 cp = &c1->next;
2effd274
FB
829 }
830
bc351386
FB
831 /* remove references, if any (XXX: do it faster) */
832 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
833 if (c1->rtsp_c == c)
834 c1->rtsp_c = NULL;
835 }
836
2effd274
FB
837 /* remove connection associated resources */
838 if (c->fd >= 0)
d96633bb 839 closesocket(c->fd);
2effd274
FB
840 if (c->fmt_in) {
841 /* close each frame parser */
842 for(i=0;i<c->fmt_in->nb_streams;i++) {
843 st = c->fmt_in->streams[i];
611c5741 844 if (st->codec->codec)
01f4895c 845 avcodec_close(st->codec);
2effd274
FB
846 }
847 av_close_input_file(c->fmt_in);
848 }
849
850 /* free RTP output streams if any */
851 nb_streams = 0;
115329f1 852 if (c->stream)
2effd274 853 nb_streams = c->stream->nb_streams;
115329f1 854
2effd274
FB
855 for(i=0;i<nb_streams;i++) {
856 ctx = c->rtp_ctx[i];
857 if (ctx) {
858 av_write_trailer(ctx);
ea4f8aab
HC
859 av_metadata_free(&ctx->metadata);
860 av_free(ctx->streams[0]);
2effd274
FB
861 av_free(ctx);
862 }
863 h = c->rtp_handles[i];
611c5741 864 if (h)
2effd274 865 url_close(h);
2effd274 866 }
115329f1 867
b88ba823
MH
868 ctx = &c->fmt_ctx;
869
637b638e 870 if (!c->last_packet_sent && c->state == HTTPSTATE_SEND_DATA_TRAILER) {
87638494
PG
871 if (ctx->oformat) {
872 /* prepare header */
b92c5452 873 if (avio_open_dyn_buf(&ctx->pb) >= 0) {
87638494 874 av_write_trailer(ctx);
f8b06be9 875 av_freep(&c->pb_buffer);
6dc7d80d 876 avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
87638494
PG
877 }
878 }
879 }
880
115329f1 881 for(i=0; i<ctx->nb_streams; i++)
0bd53967 882 av_free(ctx->streams[i]);
f0ef6240 883
edfdd798 884 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
6edd6884 885 current_bandwidth -= c->stream->bandwidth;
5400e092
AB
886
887 /* signal that there is no feed if we are the feeder socket */
888 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
889 c->stream->feed_opened = 0;
890 close(c->feed_fd);
891 }
892
2effd274 893 av_freep(&c->pb_buffer);
bc351386 894 av_freep(&c->packet_buffer);
2effd274
FB
895 av_free(c->buffer);
896 av_free(c);
897 nb_connections--;
898}
899
900static int handle_connection(HTTPContext *c)
901{
902 int len, ret;
115329f1 903
85f07f22
FB
904 switch(c->state) {
905 case HTTPSTATE_WAIT_REQUEST:
2effd274 906 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
907 /* timeout ? */
908 if ((c->timeout - cur_time) < 0)
909 return -1;
910 if (c->poll_entry->revents & (POLLERR | POLLHUP))
911 return -1;
912
913 /* no need to read if no events */
914 if (!(c->poll_entry->revents & POLLIN))
915 return 0;
916 /* read the data */
1bc1cfdd 917 read_loop:
c60202df 918 len = recv(c->fd, c->buffer_ptr, 1, 0);
85f07f22 919 if (len < 0) {
28c4741a
MS
920 if (ff_neterrno() != AVERROR(EAGAIN) &&
921 ff_neterrno() != AVERROR(EINTR))
85f07f22
FB
922 return -1;
923 } else if (len == 0) {
924 return -1;
925 } else {
94d9ad5f 926 /* search for end of request. */
0c1a9eda 927 uint8_t *ptr;
85f07f22
FB
928 c->buffer_ptr += len;
929 ptr = c->buffer_ptr;
930 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
931 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
932 /* request found : parse it and reply */
2effd274
FB
933 if (c->state == HTTPSTATE_WAIT_REQUEST) {
934 ret = http_parse_request(c);
935 } else {
936 ret = rtsp_parse_request(c);
937 }
938 if (ret < 0)
85f07f22
FB
939 return -1;
940 } else if (ptr >= c->buffer_end) {
941 /* request too long: cannot do anything */
942 return -1;
1bc1cfdd 943 } else goto read_loop;
85f07f22
FB
944 }
945 break;
946
947 case HTTPSTATE_SEND_HEADER:
948 if (c->poll_entry->revents & (POLLERR | POLLHUP))
949 return -1;
950
2effd274 951 /* no need to write if no events */
85f07f22
FB
952 if (!(c->poll_entry->revents & POLLOUT))
953 return 0;
c60202df 954 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
85f07f22 955 if (len < 0) {
28c4741a
MS
956 if (ff_neterrno() != AVERROR(EAGAIN) &&
957 ff_neterrno() != AVERROR(EINTR)) {
85f07f22 958 /* error : close connection */
2effd274 959 av_freep(&c->pb_buffer);
85f07f22
FB
960 return -1;
961 }
962 } else {
963 c->buffer_ptr += len;
2e04edb3
PG
964 if (c->stream)
965 c->stream->bytes_served += len;
a6e14edd 966 c->data_count += len;
85f07f22 967 if (c->buffer_ptr >= c->buffer_end) {
2effd274 968 av_freep(&c->pb_buffer);
85f07f22 969 /* if error, exit */
611c5741 970 if (c->http_error)
85f07f22 971 return -1;
2effd274 972 /* all the buffer was sent : synchronize to the incoming stream */
85f07f22
FB
973 c->state = HTTPSTATE_SEND_DATA_HEADER;
974 c->buffer_ptr = c->buffer_end = c->buffer;
975 }
976 }
977 break;
978
979 case HTTPSTATE_SEND_DATA:
980 case HTTPSTATE_SEND_DATA_HEADER:
981 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
982 /* for packetized output, we consider we can always write (the
983 input streams sets the speed). It may be better to verify
984 that we do not rely too much on the kernel queues */
985 if (!c->is_packetized) {
986 if (c->poll_entry->revents & (POLLERR | POLLHUP))
987 return -1;
115329f1 988
2effd274
FB
989 /* no need to read if no events */
990 if (!(c->poll_entry->revents & POLLOUT))
991 return 0;
992 }
5eb765ef 993 if (http_send_data(c) < 0)
85f07f22 994 return -1;
638831aa
AB
995 /* close connection if trailer sent */
996 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
997 return -1;
85f07f22
FB
998 break;
999 case HTTPSTATE_RECEIVE_DATA:
1000 /* no need to read if no events */
1001 if (c->poll_entry->revents & (POLLERR | POLLHUP))
1002 return -1;
1003 if (!(c->poll_entry->revents & POLLIN))
1004 return 0;
1005 if (http_receive_data(c) < 0)
1006 return -1;
1007 break;
1008 case HTTPSTATE_WAIT_FEED:
1009 /* no need to read if no events */
a6e14edd 1010 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
85f07f22
FB
1011 return -1;
1012
1013 /* nothing to do, we'll be waken up by incoming feed packets */
1014 break;
2effd274 1015
2effd274
FB
1016 case RTSPSTATE_SEND_REPLY:
1017 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1018 av_freep(&c->pb_buffer);
1019 return -1;
1020 }
1021 /* no need to write if no events */
1022 if (!(c->poll_entry->revents & POLLOUT))
1023 return 0;
c60202df 1024 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2effd274 1025 if (len < 0) {
28c4741a
MS
1026 if (ff_neterrno() != AVERROR(EAGAIN) &&
1027 ff_neterrno() != AVERROR(EINTR)) {
2effd274
FB
1028 /* error : close connection */
1029 av_freep(&c->pb_buffer);
1030 return -1;
1031 }
1032 } else {
1033 c->buffer_ptr += len;
1034 c->data_count += len;
1035 if (c->buffer_ptr >= c->buffer_end) {
1036 /* all the buffer was sent : wait for a new request */
1037 av_freep(&c->pb_buffer);
1038 start_wait_request(c, 1);
1039 }
1040 }
1041 break;
bc351386
FB
1042 case RTSPSTATE_SEND_PACKET:
1043 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
1044 av_freep(&c->packet_buffer);
1045 return -1;
1046 }
1047 /* no need to write if no events */
1048 if (!(c->poll_entry->revents & POLLOUT))
1049 return 0;
c60202df
AB
1050 len = send(c->fd, c->packet_buffer_ptr,
1051 c->packet_buffer_end - c->packet_buffer_ptr, 0);
bc351386 1052 if (len < 0) {
28c4741a
MS
1053 if (ff_neterrno() != AVERROR(EAGAIN) &&
1054 ff_neterrno() != AVERROR(EINTR)) {
bc351386
FB
1055 /* error : close connection */
1056 av_freep(&c->packet_buffer);
1057 return -1;
1058 }
1059 } else {
1060 c->packet_buffer_ptr += len;
1061 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
1062 /* all the buffer was sent : wait for a new request */
1063 av_freep(&c->packet_buffer);
1064 c->state = RTSPSTATE_WAIT_REQUEST;
1065 }
1066 }
1067 break;
2effd274
FB
1068 case HTTPSTATE_READY:
1069 /* nothing to do */
1070 break;
85f07f22
FB
1071 default:
1072 return -1;
1073 }
1074 return 0;
1075}
1076
3120d2a2
PG
1077static int extract_rates(char *rates, int ratelen, const char *request)
1078{
1079 const char *p;
1080
1081 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
1082 if (strncasecmp(p, "Pragma:", 7) == 0) {
1083 const char *q = p + 7;
1084
1085 while (*q && *q != '\n' && isspace(*q))
1086 q++;
1087
1088 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
1089 int stream_no;
1090 int rate_no;
1091
1092 q += 20;
1093
cde25790 1094 memset(rates, 0xff, ratelen);
3120d2a2
PG
1095
1096 while (1) {
1097 while (*q && *q != '\n' && *q != ':')
1098 q++;
1099
611c5741 1100 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
3120d2a2 1101 break;
611c5741 1102
3120d2a2 1103 stream_no--;
611c5741 1104 if (stream_no < ratelen && stream_no >= 0)
3120d2a2 1105 rates[stream_no] = rate_no;
3120d2a2
PG
1106
1107 while (*q && *q != '\n' && !isspace(*q))
1108 q++;
1109 }
1110
1111 return 1;
1112 }
1113 }
1114 p = strchr(p, '\n');
1115 if (!p)
1116 break;
1117
1118 p++;
1119 }
1120
1121 return 0;
1122}
1123
cde25790 1124static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
3120d2a2
PG
1125{
1126 int i;
cde25790
PG
1127 int best_bitrate = 100000000;
1128 int best = -1;
1129
1130 for (i = 0; i < feed->nb_streams; i++) {
01f4895c 1131 AVCodecContext *feed_codec = feed->streams[i]->codec;
cde25790
PG
1132
1133 if (feed_codec->codec_id != codec->codec_id ||
1134 feed_codec->sample_rate != codec->sample_rate ||
1135 feed_codec->width != codec->width ||
611c5741 1136 feed_codec->height != codec->height)
cde25790 1137 continue;
cde25790
PG
1138
1139 /* Potential stream */
1140
115329f1 1141 /* We want the fastest stream less than bit_rate, or the slowest
cde25790
PG
1142 * faster than bit_rate
1143 */
1144
1145 if (feed_codec->bit_rate <= bit_rate) {
1146 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1147 best_bitrate = feed_codec->bit_rate;
1148 best = i;
1149 }
1150 } else {
1151 if (feed_codec->bit_rate < best_bitrate) {
1152 best_bitrate = feed_codec->bit_rate;
1153 best = i;
1154 }
1155 }
1156 }
1157
1158 return best;
1159}
1160
1161static int modify_current_stream(HTTPContext *c, char *rates)
1162{
1163 int i;
1164 FFStream *req = c->stream;
1165 int action_required = 0;
3120d2a2 1166
001bcd29
PG
1167 /* Not much we can do for a feed */
1168 if (!req->feed)
1169 return 0;
1170
3120d2a2 1171 for (i = 0; i < req->nb_streams; i++) {
01f4895c 1172 AVCodecContext *codec = req->streams[i]->codec;
3120d2a2 1173
3120d2a2
PG
1174 switch(rates[i]) {
1175 case 0:
cde25790 1176 c->switch_feed_streams[i] = req->feed_streams[i];
3120d2a2
PG
1177 break;
1178 case 1:
cde25790 1179 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
3120d2a2
PG
1180 break;
1181 case 2:
cde25790
PG
1182 /* Wants off or slow */
1183 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1184#ifdef WANTS_OFF
1185 /* This doesn't work well when it turns off the only stream! */
1186 c->switch_feed_streams[i] = -2;
1187 c->feed_streams[i] = -2;
1188#endif
3120d2a2
PG
1189 break;
1190 }
3120d2a2 1191
cde25790
PG
1192 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1193 action_required = 1;
1194 }
3120d2a2 1195
cde25790
PG
1196 return action_required;
1197}
3120d2a2 1198
2effd274
FB
1199/* XXX: factorize in utils.c ? */
1200/* XXX: take care with different space meaning */
1201static void skip_spaces(const char **pp)
1202{
1203 const char *p;
1204 p = *pp;
1205 while (*p == ' ' || *p == '\t')
1206 p++;
1207 *pp = p;
1208}
1209
1210static void get_word(char *buf, int buf_size, const char **pp)
1211{
1212 const char *p;
1213 char *q;
1214
1215 p = *pp;
1216 skip_spaces(&p);
1217 q = buf;
1218 while (!isspace(*p) && *p != '\0') {
1219 if ((q - buf) < buf_size - 1)
1220 *q++ = *p;
1221 p++;
1222 }
1223 if (buf_size > 0)
1224 *q = '\0';
1225 *pp = p;
1226}
1227
c64c0a9b
BL
1228static void get_arg(char *buf, int buf_size, const char **pp)
1229{
1230 const char *p;
1231 char *q;
1232 int quote;
1233
1234 p = *pp;
1235 while (isspace(*p)) p++;
1236 q = buf;
1237 quote = 0;
1238 if (*p == '\"' || *p == '\'')
1239 quote = *p++;
1240 for(;;) {
1241 if (quote) {
1242 if (*p == quote)
1243 break;
1244 } else {
1245 if (isspace(*p))
1246 break;
1247 }
1248 if (*p == '\0')
1249 break;
1250 if ((q - buf) < buf_size - 1)
1251 *q++ = *p;
1252 p++;
1253 }
1254 *q = '\0';
1255 if (quote && *p == quote)
1256 p++;
1257 *pp = p;
1258}
1259
58f48adb
BL
1260static void parse_acl_row(FFStream *stream, FFStream* feed, IPAddressACL *ext_acl,
1261 const char *p, const char *filename, int line_num)
1262{
1263 char arg[1024];
1264 IPAddressACL acl;
1265 int errors = 0;
1266
1267 get_arg(arg, sizeof(arg), &p);
1268 if (strcasecmp(arg, "allow") == 0)
1269 acl.action = IP_ALLOW;
1270 else if (strcasecmp(arg, "deny") == 0)
1271 acl.action = IP_DENY;
1272 else {
1273 fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",
1274 filename, line_num, arg);
1275 errors++;
1276 }
1277
1278 get_arg(arg, sizeof(arg), &p);
1279
1280 if (resolve_host(&acl.first, arg) != 0) {
1281 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1282 filename, line_num, arg);
1283 errors++;
1284 } else
1285 acl.last = acl.first;
1286
1287 get_arg(arg, sizeof(arg), &p);
1288
1289 if (arg[0]) {
1290 if (resolve_host(&acl.last, arg) != 0) {
1291 fprintf(stderr, "%s:%d: ACL refers to invalid host or ip address '%s'\n",
1292 filename, line_num, arg);
1293 errors++;
1294 }
1295 }
1296
1297 if (!errors) {
1298 IPAddressACL *nacl = av_mallocz(sizeof(*nacl));
1299 IPAddressACL **naclp = 0;
1300
1301 acl.next = 0;
1302 *nacl = acl;
1303
1304 if (stream)
1305 naclp = &stream->acl;
1306 else if (feed)
1307 naclp = &feed->acl;
1308 else if (ext_acl)
1309 naclp = &ext_acl;
1310 else {
1311 fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",
1312 filename, line_num);
1313 errors++;
1314 }
1315
1316 if (naclp) {
1317 while (*naclp)
1318 naclp = &(*naclp)->next;
1319
1320 *naclp = nacl;
1321 }
1322 }
1323}
1324
1325
1326static IPAddressACL* parse_dynamic_acl(FFStream *stream, HTTPContext *c)
1327{
1328 FILE* f;
1329 char line[1024];
1330 char cmd[1024];
1331 IPAddressACL *acl = NULL;
1332 int line_num = 0;
1333 const char *p;
1334
1335 f = fopen(stream->dynamic_acl, "r");
1336 if (!f) {
1337 perror(stream->dynamic_acl);
1338 return NULL;
1339 }
1340
1341 acl = av_mallocz(sizeof(IPAddressACL));
1342
1343 /* Build ACL */
1344 for(;;) {
1345 if (fgets(line, sizeof(line), f) == NULL)
1346 break;
1347 line_num++;
1348 p = line;
1349 while (isspace(*p))
1350 p++;
1351 if (*p == '\0' || *p == '#')
1352 continue;
1353 get_arg(cmd, sizeof(cmd), &p);
1354
1355 if (!strcasecmp(cmd, "ACL"))
1356 parse_acl_row(NULL, NULL, acl, p, stream->dynamic_acl, line_num);
1357 }
1358 fclose(f);
1359 return acl;
1360}
1361
1362
1363static void free_acl_list(IPAddressACL *in_acl)
1364{
1365 IPAddressACL *pacl,*pacl2;
1366
1367 pacl = in_acl;
1368 while(pacl) {
1369 pacl2 = pacl;
1370 pacl = pacl->next;
1371 av_freep(pacl2);
1372 }
1373}
1374
1375static int validate_acl_list(IPAddressACL *in_acl, HTTPContext *c)
8256c0a3
PG
1376{
1377 enum IPAddressAction last_action = IP_DENY;
1378 IPAddressACL *acl;
1379 struct in_addr *src = &c->from_addr.sin_addr;
2bd8416e 1380 unsigned long src_addr = src->s_addr;
8256c0a3 1381
58f48adb 1382 for (acl = in_acl; acl; acl = acl->next) {
611c5741 1383 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
8256c0a3 1384 return (acl->action == IP_ALLOW) ? 1 : 0;
8256c0a3
PG
1385 last_action = acl->action;
1386 }
1387
1388 /* Nothing matched, so return not the last action */
1389 return (last_action == IP_DENY) ? 1 : 0;
1390}
1391
58f48adb
BL
1392static int validate_acl(FFStream *stream, HTTPContext *c)
1393{
1394 int ret = 0;
1395 IPAddressACL *acl;
1396
1397
1398 /* if stream->acl is null validate_acl_list will return 1 */
1399 ret = validate_acl_list(stream->acl, c);
1400
1401 if (stream->dynamic_acl[0]) {
1402 acl = parse_dynamic_acl(stream, c);
1403
1404 ret = validate_acl_list(acl, c);
1405
1406 free_acl_list(acl);
1407 }
1408
1409 return ret;
1410}
1411
829ac53d
FB
1412/* compute the real filename of a file by matching it without its
1413 extensions to all the stream filenames */
1414static void compute_real_filename(char *filename, int max_size)
1415{
1416 char file1[1024];
1417 char file2[1024];
1418 char *p;
1419 FFStream *stream;
1420
1421 /* compute filename by matching without the file extensions */
f7d78f36 1422 av_strlcpy(file1, filename, sizeof(file1));
829ac53d
FB
1423 p = strrchr(file1, '.');
1424 if (p)
1425 *p = '\0';
1426 for(stream = first_stream; stream != NULL; stream = stream->next) {
f7d78f36 1427 av_strlcpy(file2, stream->filename, sizeof(file2));
829ac53d
FB
1428 p = strrchr(file2, '.');
1429 if (p)
1430 *p = '\0';
1431 if (!strcmp(file1, file2)) {
f7d78f36 1432 av_strlcpy(filename, stream->filename, max_size);
829ac53d
FB
1433 break;
1434 }
1435 }
1436}
1437
1438enum RedirType {
1439 REDIR_NONE,
1440 REDIR_ASX,
1441 REDIR_RAM,
1442 REDIR_ASF,
1443 REDIR_RTSP,
1444 REDIR_SDP,
1445};
1446
85f07f22
FB
1447/* parse http request and prepare header */
1448static int http_parse_request(HTTPContext *c)
1449{
1450 char *p;
829ac53d 1451 enum RedirType redir_type;
85f07f22 1452 char cmd[32];
bae79c04 1453 char info[1024], filename[1024];
85f07f22
FB
1454 char url[1024], *q;
1455 char protocol[32];
1456 char msg[1024];
1457 const char *mime_type;
1458 FFStream *stream;
42a63c6a 1459 int i;
3120d2a2 1460 char ratebuf[32];
cde25790 1461 char *useragent = 0;
85f07f22
FB
1462
1463 p = c->buffer;
2effd274 1464 get_word(cmd, sizeof(cmd), (const char **)&p);
f7d78f36 1465 av_strlcpy(c->method, cmd, sizeof(c->method));
7434ba6d 1466
85f07f22 1467 if (!strcmp(cmd, "GET"))
edfdd798 1468 c->post = 0;
85f07f22 1469 else if (!strcmp(cmd, "POST"))
edfdd798 1470 c->post = 1;
85f07f22
FB
1471 else
1472 return -1;
1473
2effd274 1474 get_word(url, sizeof(url), (const char **)&p);
f7d78f36 1475 av_strlcpy(c->url, url, sizeof(c->url));
7434ba6d 1476
2effd274 1477 get_word(protocol, sizeof(protocol), (const char **)&p);
85f07f22
FB
1478 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1479 return -1;
7434ba6d 1480
f7d78f36 1481 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
90f9c440
AB
1482
1483 if (ffserver_debug)
77553ae3 1484 http_log("%s - - New connection: %s %s\n", inet_ntoa(c->from_addr.sin_addr), cmd, url);
115329f1 1485
85f07f22 1486 /* find the filename and the optional info string in the request */
bae79c04 1487 p = strchr(url, '?');
85f07f22 1488 if (p) {
f7d78f36 1489 av_strlcpy(info, p, sizeof(info));
85f07f22 1490 *p = '\0';
611c5741 1491 } else
85f07f22 1492 info[0] = '\0';
85f07f22 1493
f7d78f36 1494 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
bae79c04 1495
cde25790
PG
1496 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1497 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1498 useragent = p + 11;
1499 if (*useragent && *useragent != '\n' && isspace(*useragent))
1500 useragent++;
1501 break;
1502 }
1503 p = strchr(p, '\n');
1504 if (!p)
1505 break;
1506
1507 p++;
1508 }
1509
829ac53d 1510 redir_type = REDIR_NONE;
aa13b573 1511 if (av_match_ext(filename, "asx")) {
829ac53d 1512 redir_type = REDIR_ASX;
7434ba6d 1513 filename[strlen(filename)-1] = 'f';
aa13b573 1514 } else if (av_match_ext(filename, "asf") &&
cde25790
PG
1515 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1516 /* if this isn't WMP or lookalike, return the redirector file */
829ac53d 1517 redir_type = REDIR_ASF;
aa13b573 1518 } else if (av_match_ext(filename, "rpm,ram")) {
829ac53d 1519 redir_type = REDIR_RAM;
42a63c6a 1520 strcpy(filename + strlen(filename)-2, "m");
aa13b573 1521 } else if (av_match_ext(filename, "rtsp")) {
829ac53d 1522 redir_type = REDIR_RTSP;
bae79c04 1523 compute_real_filename(filename, sizeof(filename) - 1);
aa13b573 1524 } else if (av_match_ext(filename, "sdp")) {
829ac53d 1525 redir_type = REDIR_SDP;
bae79c04 1526 compute_real_filename(filename, sizeof(filename) - 1);
42a63c6a 1527 }
115329f1 1528
bae79c04
AB
1529 // "redirect" / request to index.html
1530 if (!strlen(filename))
f7d78f36 1531 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
bae79c04 1532
85f07f22
FB
1533 stream = first_stream;
1534 while (stream != NULL) {
8256c0a3 1535 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
85f07f22
FB
1536 break;
1537 stream = stream->next;
1538 }
1539 if (stream == NULL) {
d445a7e9 1540 snprintf(msg, sizeof(msg), "File '%s' not found", url);
77553ae3 1541 http_log("File '%s' not found\n", url);
85f07f22
FB
1542 goto send_error;
1543 }
42a63c6a 1544
cde25790
PG
1545 c->stream = stream;
1546 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1547 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1548
1549 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1550 c->http_error = 301;
1551 q = c->buffer;
a3aa4fed
BC
1552 q += snprintf(q, c->buffer_size,
1553 "HTTP/1.0 301 Moved\r\n"
1554 "Location: %s\r\n"
1555 "Content-type: text/html\r\n"
1556 "\r\n"
1557 "<html><head><title>Moved</title></head><body>\r\n"
1558 "You should be <a href=\"%s\">redirected</a>.\r\n"
1559 "</body></html>\r\n", stream->feed_filename, stream->feed_filename);
cde25790
PG
1560 /* prepare output buffer */
1561 c->buffer_ptr = c->buffer;
1562 c->buffer_end = q;
1563 c->state = HTTPSTATE_SEND_HEADER;
1564 return 0;
1565 }
1566
3120d2a2
PG
1567 /* If this is WMP, get the rate information */
1568 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
cde25790 1569 if (modify_current_stream(c, ratebuf)) {
37d3e066 1570 for (i = 0; i < FF_ARRAY_ELEMS(c->feed_streams); i++) {
cde25790 1571 if (c->switch_feed_streams[i] >= 0)
305ca590 1572 c->switch_feed_streams[i] = -1;
cde25790
PG
1573 }
1574 }
3120d2a2
PG
1575 }
1576
d8f28a77
BC
1577 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
1578 current_bandwidth += stream->bandwidth;
1579
755bfeab 1580 /* If already streaming this feed, do not let start another feeder. */
d0a5513b
AB
1581 if (stream->feed_opened) {
1582 snprintf(msg, sizeof(msg), "This feed is already being received.");
77553ae3 1583 http_log("Feed '%s' already being received\n", stream->feed_filename);
d0a5513b
AB
1584 goto send_error;
1585 }
1586
edfdd798 1587 if (c->post == 0 && max_bandwidth < current_bandwidth) {
0aee2a57 1588 c->http_error = 503;
42a63c6a 1589 q = c->buffer;
a3aa4fed 1590 q += snprintf(q, c->buffer_size,
0aee2a57 1591 "HTTP/1.0 503 Server too busy\r\n"
a3aa4fed
BC
1592 "Content-type: text/html\r\n"
1593 "\r\n"
1594 "<html><head><title>Too busy</title></head><body>\r\n"
1595 "<p>The server is too busy to serve your request at this time.</p>\r\n"
0be4b8d9
BC
1596 "<p>The bandwidth being served (including your stream) is %"PRIu64"kbit/sec, "
1597 "and this exceeds the limit of %"PRIu64"kbit/sec.</p>\r\n"
a3aa4fed 1598 "</body></html>\r\n", current_bandwidth, max_bandwidth);
42a63c6a
PG
1599 /* prepare output buffer */
1600 c->buffer_ptr = c->buffer;
1601 c->buffer_end = q;
1602 c->state = HTTPSTATE_SEND_HEADER;
1603 return 0;
1604 }
115329f1 1605
829ac53d 1606 if (redir_type != REDIR_NONE) {
7434ba6d 1607 char *hostinfo = 0;
115329f1 1608
7434ba6d
PG
1609 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1610 if (strncasecmp(p, "Host:", 5) == 0) {
1611 hostinfo = p + 5;
1612 break;
1613 }
1614 p = strchr(p, '\n');
1615 if (!p)
1616 break;
1617
1618 p++;
1619 }
1620
1621 if (hostinfo) {
1622 char *eoh;
1623 char hostbuf[260];
1624
1625 while (isspace(*hostinfo))
1626 hostinfo++;
1627
1628 eoh = strchr(hostinfo, '\n');
1629 if (eoh) {
1630 if (eoh[-1] == '\r')
1631 eoh--;
1632
1633 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1634 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1635 hostbuf[eoh - hostinfo] = 0;
1636
1637 c->http_error = 200;
1638 q = c->buffer;
829ac53d
FB
1639 switch(redir_type) {
1640 case REDIR_ASX:
a3aa4fed
BC
1641 q += snprintf(q, c->buffer_size,
1642 "HTTP/1.0 200 ASX Follows\r\n"
1643 "Content-type: video/x-ms-asf\r\n"
1644 "\r\n"
1645 "<ASX Version=\"3\">\r\n"
1646 //"<!-- Autogenerated by ffserver -->\r\n"
1647 "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n"
1648 "</ASX>\r\n", hostbuf, filename, info);
829ac53d
FB
1649 break;
1650 case REDIR_RAM:
a3aa4fed
BC
1651 q += snprintf(q, c->buffer_size,
1652 "HTTP/1.0 200 RAM Follows\r\n"
1653 "Content-type: audio/x-pn-realaudio\r\n"
1654 "\r\n"
1655 "# Autogenerated by ffserver\r\n"
1656 "http://%s/%s%s\r\n", hostbuf, filename, info);
829ac53d
FB
1657 break;
1658 case REDIR_ASF:
a3aa4fed
BC
1659 q += snprintf(q, c->buffer_size,
1660 "HTTP/1.0 200 ASF Redirect follows\r\n"
1661 "Content-type: video/x-ms-asf\r\n"
1662 "\r\n"
1663 "[Reference]\r\n"
1664 "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info);
829ac53d
FB
1665 break;
1666 case REDIR_RTSP:
1667 {
1668 char hostname[256], *p;
1669 /* extract only hostname */
f7d78f36 1670 av_strlcpy(hostname, hostbuf, sizeof(hostname));
829ac53d
FB
1671 p = strrchr(hostname, ':');
1672 if (p)
1673 *p = '\0';
a3aa4fed
BC
1674 q += snprintf(q, c->buffer_size,
1675 "HTTP/1.0 200 RTSP Redirect follows\r\n"
1676 /* XXX: incorrect mime type ? */
1677 "Content-type: application/x-rtsp\r\n"
1678 "\r\n"
1679 "rtsp://%s:%d/%s\r\n", hostname, ntohs(my_rtsp_addr.sin_port), filename);
829ac53d
FB
1680 }
1681 break;
1682 case REDIR_SDP:
1683 {
0c1a9eda 1684 uint8_t *sdp_data;
829ac53d
FB
1685 int sdp_data_size, len;
1686 struct sockaddr_in my_addr;
1687
a3aa4fed
BC
1688 q += snprintf(q, c->buffer_size,
1689 "HTTP/1.0 200 OK\r\n"
1690 "Content-type: application/sdp\r\n"
1691 "\r\n");
829ac53d
FB
1692
1693 len = sizeof(my_addr);
1694 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
115329f1 1695
829ac53d 1696 /* XXX: should use a dynamic buffer */
115329f1
DB
1697 sdp_data_size = prepare_sdp_description(stream,
1698 &sdp_data,
829ac53d
FB
1699 my_addr.sin_addr);
1700 if (sdp_data_size > 0) {
1701 memcpy(q, sdp_data, sdp_data_size);
1702 q += sdp_data_size;
1703 *q = '\0';
1704 av_free(sdp_data);
1705 }
1706 }
1707 break;
1708 default:
0f4e8165 1709 abort();
829ac53d 1710 break;
2effd274 1711 }
7434ba6d
PG
1712
1713 /* prepare output buffer */
1714 c->buffer_ptr = c->buffer;
1715 c->buffer_end = q;
1716 c->state = HTTPSTATE_SEND_HEADER;
1717 return 0;
1718 }
1719 }
1720 }
1721
d445a7e9 1722 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
7434ba6d 1723 goto send_error;
85f07f22
FB
1724 }
1725
a6e14edd 1726 stream->conns_served++;
7434ba6d 1727
85f07f22
FB
1728 /* XXX: add there authenticate and IP match */
1729
edfdd798 1730 if (c->post) {
85f07f22
FB
1731 /* if post, it means a feed is being sent */
1732 if (!stream->is_feed) {
e16190fa
DB
1733 /* However it might be a status report from WMP! Let us log the
1734 * data as it might come in handy one day. */
7434ba6d 1735 char *logline = 0;
3120d2a2 1736 int client_id = 0;
115329f1 1737
7434ba6d
PG
1738 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1739 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1740 logline = p;
1741 break;
1742 }
611c5741 1743 if (strncasecmp(p, "Pragma: client-id=", 18) == 0)
3120d2a2 1744 client_id = strtol(p + 18, 0, 10);
7434ba6d
PG
1745 p = strchr(p, '\n');
1746 if (!p)
1747 break;
1748
1749 p++;
1750 }
1751
1752 if (logline) {
1753 char *eol = strchr(logline, '\n');
1754
1755 logline += 17;
1756
1757 if (eol) {
1758 if (eol[-1] == '\r')
1759 eol--;
7906085f 1760 http_log("%.*s\n", (int) (eol - logline), logline);
7434ba6d
PG
1761 c->suppress_log = 1;
1762 }
1763 }
3120d2a2 1764
cde25790
PG
1765#ifdef DEBUG_WMP
1766 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1767#endif
1768
1769 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1770 HTTPContext *wmpc;
1771
1772 /* Now we have to find the client_id */
1773 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1774 if (wmpc->wmp_client_id == client_id)
1775 break;
1776 }
1777
2d563d2f
AB
1778 if (wmpc && modify_current_stream(wmpc, ratebuf))
1779 wmpc->switch_pending = 1;
3120d2a2 1780 }
115329f1 1781
d445a7e9 1782 snprintf(msg, sizeof(msg), "POST command not handled");
cb275dd9 1783 c->stream = 0;
85f07f22
FB
1784 goto send_error;
1785 }
1786 if (http_start_receive_data(c) < 0) {
d445a7e9 1787 snprintf(msg, sizeof(msg), "could not open feed");
85f07f22
FB
1788 goto send_error;
1789 }
1790 c->http_error = 0;
1791 c->state = HTTPSTATE_RECEIVE_DATA;
1792 return 0;
1793 }
1794
cde25790 1795#ifdef DEBUG_WMP
611c5741 1796 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
cde25790 1797 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1798#endif
1799
85f07f22 1800 if (c->stream->stream_type == STREAM_TYPE_STATUS)
dca21085 1801 goto send_status;
85f07f22
FB
1802
1803 /* open input stream */
1804 if (open_input_stream(c, info) < 0) {
d445a7e9 1805 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
85f07f22
FB
1806 goto send_error;
1807 }
1808
1809 /* prepare http header */
1810 q = c->buffer;
d445a7e9 1811 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
85f07f22
FB
1812 mime_type = c->stream->fmt->mime_type;
1813 if (!mime_type)
087fa475 1814 mime_type = "application/x-octet-stream";
d445a7e9 1815 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
85f07f22
FB
1816
1817 /* for asf, we need extra headers */
8256c0a3 1818 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
3120d2a2 1819 /* Need to allocate a client id */
3120d2a2 1820
042819c5 1821 c->wmp_client_id = av_lfg_get(&random_state);
3120d2a2 1822
d445a7e9 1823 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 1824 }
d445a7e9
PG
1825 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1826 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
115329f1 1827
85f07f22
FB
1828 /* prepare output buffer */
1829 c->http_error = 0;
1830 c->buffer_ptr = c->buffer;
1831 c->buffer_end = q;
1832 c->state = HTTPSTATE_SEND_HEADER;
1833 return 0;
1834 send_error:
1835 c->http_error = 404;
1836 q = c->buffer;
a3aa4fed
BC
1837 q += snprintf(q, c->buffer_size,
1838 "HTTP/1.0 404 Not Found\r\n"
1839 "Content-type: text/html\r\n"
1840 "\r\n"
5e567aae
DB
1841 "<html>\n"
1842 "<head><title>404 Not Found</title></head>\n"
1843 "<body>%s</body>\n"
1844 "</html>\n", msg);
85f07f22
FB
1845 /* prepare output buffer */
1846 c->buffer_ptr = c->buffer;
1847 c->buffer_end = q;
1848 c->state = HTTPSTATE_SEND_HEADER;
1849 return 0;
dca21085
SS
1850 send_status:
1851 compute_status(c);
85f07f22
FB
1852 c->http_error = 200; /* horrible : we use this value to avoid
1853 going to the send data state */
1854 c->state = HTTPSTATE_SEND_HEADER;
1855 return 0;
1856}
1857
ae628ec1 1858static void fmt_bytecount(AVIOContext *pb, int64_t count)
2ac887ba
PG
1859{
1860 static const char *suffix = " kMGTP";
1861 const char *s;
1862
611c5741 1863 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
2ac887ba 1864
d9d86e00 1865 avio_printf(pb, "%"PRId64"%c", count, *s);
2ac887ba
PG
1866}
1867
dca21085 1868static void compute_status(HTTPContext *c)
85f07f22
FB
1869{
1870 HTTPContext *c1;
1871 FFStream *stream;
2effd274 1872 char *p;
85f07f22 1873 time_t ti;
2effd274 1874 int i, len;
ae628ec1 1875 AVIOContext *pb;
cde25790 1876
b92c5452 1877 if (avio_open_dyn_buf(&pb) < 0) {
2effd274 1878 /* XXX: return an error ? */
cde25790 1879 c->buffer_ptr = c->buffer;
2effd274
FB
1880 c->buffer_end = c->buffer;
1881 return;
cde25790 1882 }
85f07f22 1883
d9d86e00
AK
1884 avio_printf(pb, "HTTP/1.0 200 OK\r\n");
1885 avio_printf(pb, "Content-type: %s\r\n", "text/html");
1886 avio_printf(pb, "Pragma: no-cache\r\n");
1887 avio_printf(pb, "\r\n");
115329f1 1888
d9d86e00 1889 avio_printf(pb, "<html><head><title>%s Status</title>\n", program_name);
0679719d 1890 if (c->stream->feed_filename[0])
d9d86e00
AK
1891 avio_printf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
1892 avio_printf(pb, "</head>\n<body>");
1893 avio_printf(pb, "<h1>%s Status</h1>\n", program_name);
85f07f22 1894 /* format status */
d9d86e00
AK
1895 avio_printf(pb, "<h2>Available Streams</h2>\n");
1896 avio_printf(pb, "<table cellspacing=0 cellpadding=4>\n");
1897 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
1898 stream = first_stream;
1899 while (stream != NULL) {
42a63c6a
PG
1900 char sfilename[1024];
1901 char *eosf;
1902
a6e14edd 1903 if (stream->feed != stream) {
f7d78f36 1904 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
a6e14edd
PG
1905 eosf = sfilename + strlen(sfilename);
1906 if (eosf - sfilename >= 4) {
611c5741 1907 if (strcmp(eosf - 4, ".asf") == 0)
a6e14edd 1908 strcpy(eosf - 4, ".asx");
611c5741 1909 else if (strcmp(eosf - 3, ".rm") == 0)
a6e14edd 1910 strcpy(eosf - 3, ".ram");
25e3e53d 1911 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
829ac53d
FB
1912 /* generate a sample RTSP director if
1913 unicast. Generate an SDP redirector if
1914 multicast */
2effd274
FB
1915 eosf = strrchr(sfilename, '.');
1916 if (!eosf)
1917 eosf = sfilename + strlen(sfilename);
829ac53d
FB
1918 if (stream->is_multicast)
1919 strcpy(eosf, ".sdp");
1920 else
1921 strcpy(eosf, ".rtsp");
a6e14edd 1922 }
42a63c6a 1923 }
115329f1 1924
d9d86e00 1925 avio_printf(pb, "<tr><td><a href=\"/%s\">%s</a> ",
a6e14edd 1926 sfilename, stream->filename);
d9d86e00 1927 avio_printf(pb, "<td align=right> %d <td align=right> ",
2ac887ba 1928 stream->conns_served);
2effd274 1929 fmt_bytecount(pb, stream->bytes_served);
a6e14edd 1930 switch(stream->stream_type) {
ace21da3 1931 case STREAM_TYPE_LIVE: {
a6e14edd
PG
1932 int audio_bit_rate = 0;
1933 int video_bit_rate = 0;
58445440
ZK
1934 const char *audio_codec_name = "";
1935 const char *video_codec_name = "";
1936 const char *audio_codec_name_extra = "";
1937 const char *video_codec_name_extra = "";
a6e14edd
PG
1938
1939 for(i=0;i<stream->nb_streams;i++) {
1940 AVStream *st = stream->streams[i];
01f4895c
MN
1941 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1942 switch(st->codec->codec_type) {
72415b2a 1943 case AVMEDIA_TYPE_AUDIO:
01f4895c 1944 audio_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1945 if (codec) {
1946 if (*audio_codec_name)
1947 audio_codec_name_extra = "...";
1948 audio_codec_name = codec->name;
1949 }
1950 break;
72415b2a 1951 case AVMEDIA_TYPE_VIDEO:
01f4895c 1952 video_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1953 if (codec) {
1954 if (*video_codec_name)
1955 video_codec_name_extra = "...";
1956 video_codec_name = codec->name;
1957 }
1958 break;
72415b2a 1959 case AVMEDIA_TYPE_DATA:
01f4895c 1960 video_bit_rate += st->codec->bit_rate;
e240a0bb 1961 break;
a6e14edd 1962 default:
0f4e8165 1963 abort();
79c4ea3c 1964 }
85f07f22 1965 }
d9d86e00 1966 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 1967 stream->fmt->name,
6edd6884 1968 stream->bandwidth,
a6e14edd
PG
1969 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1970 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
611c5741 1971 if (stream->feed)
d9d86e00 1972 avio_printf(pb, "<td>%s", stream->feed->filename);
611c5741 1973 else
d9d86e00
AK
1974 avio_printf(pb, "<td>%s", stream->feed_filename);
1975 avio_printf(pb, "\n");
85f07f22 1976 }
a6e14edd
PG
1977 break;
1978 default:
d9d86e00 1979 avio_printf(pb, "<td align=center> - <td align=right> - <td align=right> - <td><td align=right> - <td>\n");
a6e14edd 1980 break;
85f07f22 1981 }
85f07f22
FB
1982 }
1983 stream = stream->next;
1984 }
d9d86e00 1985 avio_printf(pb, "</table>\n");
a6e14edd
PG
1986
1987 stream = first_stream;
1988 while (stream != NULL) {
1989 if (stream->feed == stream) {
d9d86e00 1990 avio_printf(pb, "<h2>Feed %s</h2>", stream->filename);
cde25790 1991 if (stream->pid) {
d9d86e00 1992 avio_printf(pb, "Running as pid %d.\n", stream->pid);
cde25790 1993
2effd274
FB
1994#if defined(linux) && !defined(CONFIG_NOCUTILS)
1995 {
1996 FILE *pid_stat;
1997 char ps_cmd[64];
1998
1999 /* This is somewhat linux specific I guess */
115329f1
DB
2000 snprintf(ps_cmd, sizeof(ps_cmd),
2001 "ps -o \"%%cpu,cputime\" --no-headers %d",
2effd274 2002 stream->pid);
115329f1 2003
2effd274
FB
2004 pid_stat = popen(ps_cmd, "r");
2005 if (pid_stat) {
2006 char cpuperc[10];
2007 char cpuused[64];
115329f1
DB
2008
2009 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2effd274 2010 cpuused) == 2) {
d9d86e00 2011 avio_printf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
2effd274
FB
2012 cpuperc, cpuused);
2013 }
2014 fclose(pid_stat);
cde25790 2015 }
cde25790
PG
2016 }
2017#endif
2018
d9d86e00 2019 avio_printf(pb, "<p>");
cde25790 2020 }
d9d86e00 2021 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
2022
2023 for (i = 0; i < stream->nb_streams; i++) {
2024 AVStream *st = stream->streams[i];
01f4895c 2025 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
b29f97d1 2026 const char *type = "unknown";
b582f314
PG
2027 char parameters[64];
2028
2029 parameters[0] = 0;
a6e14edd 2030
01f4895c 2031 switch(st->codec->codec_type) {
72415b2a 2032 case AVMEDIA_TYPE_AUDIO:
a6e14edd 2033 type = "audio";
acdc8520 2034 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
a6e14edd 2035 break;
72415b2a 2036 case AVMEDIA_TYPE_VIDEO:
a6e14edd 2037 type = "video";
01f4895c
MN
2038 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
2039 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
a6e14edd
PG
2040 break;
2041 default:
0f4e8165 2042 abort();
a6e14edd 2043 }
d9d86e00 2044 avio_printf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
01f4895c 2045 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
a6e14edd 2046 }
d9d86e00 2047 avio_printf(pb, "</table>\n");
a6e14edd 2048
115329f1 2049 }
a6e14edd
PG
2050 stream = stream->next;
2051 }
115329f1 2052
85f07f22 2053 /* connection status */
d9d86e00 2054 avio_printf(pb, "<h2>Connection Status</h2>\n");
85f07f22 2055
d9d86e00 2056 avio_printf(pb, "Number of connections: %d / %d<br>\n",
85f07f22
FB
2057 nb_connections, nb_max_connections);
2058
d9d86e00 2059 avio_printf(pb, "Bandwidth in use: %"PRIu64"k / %"PRIu64"k<br>\n",
6edd6884 2060 current_bandwidth, max_bandwidth);
42a63c6a 2061
d9d86e00
AK
2062 avio_printf(pb, "<table>\n");
2063 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
2064 c1 = first_http_ctx;
2065 i = 0;
2effd274 2066 while (c1 != NULL) {
cde25790
PG
2067 int bitrate;
2068 int j;
2069
2070 bitrate = 0;
2effd274
FB
2071 if (c1->stream) {
2072 for (j = 0; j < c1->stream->nb_streams; j++) {
2d563d2f 2073 if (!c1->stream->feed)
01f4895c 2074 bitrate += c1->stream->streams[j]->codec->bit_rate;
2d563d2f
AB
2075 else if (c1->feed_streams[j] >= 0)
2076 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
cde25790
PG
2077 }
2078 }
2079
85f07f22
FB
2080 i++;
2081 p = inet_ntoa(c1->from_addr.sin_addr);
d9d86e00 2082 avio_printf(pb, "<tr><td><b>%d</b><td>%s%s<td>%s<td>%s<td>%s<td align=right>",
115329f1
DB
2083 i,
2084 c1->stream ? c1->stream->filename : "",
2effd274 2085 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
115329f1 2086 p,
2effd274
FB
2087 c1->protocol,
2088 http_state[c1->state]);
2089 fmt_bytecount(pb, bitrate);
d9d86e00 2090 avio_printf(pb, "<td align=right>");
2effd274 2091 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
d9d86e00 2092 avio_printf(pb, "<td align=right>");
2effd274 2093 fmt_bytecount(pb, c1->data_count);
d9d86e00 2094 avio_printf(pb, "\n");
85f07f22
FB
2095 c1 = c1->next;
2096 }
d9d86e00 2097 avio_printf(pb, "</table>\n");
115329f1 2098
85f07f22
FB
2099 /* date */
2100 ti = time(NULL);
2101 p = ctime(&ti);
d9d86e00
AK
2102 avio_printf(pb, "<hr size=1 noshade>Generated at %s", p);
2103 avio_printf(pb, "</body>\n</html>\n");
85f07f22 2104
6dc7d80d 2105 len = avio_close_dyn_buf(pb, &c->pb_buffer);
2effd274
FB
2106 c->buffer_ptr = c->pb_buffer;
2107 c->buffer_end = c->pb_buffer + len;
85f07f22
FB
2108}
2109
2effd274
FB
2110/* check if the parser needs to be opened for stream i */
2111static void open_parser(AVFormatContext *s, int i)
85f07f22 2112{
2effd274
FB
2113 AVStream *st = s->streams[i];
2114 AVCodec *codec;
31def229 2115
01f4895c
MN
2116 if (!st->codec->codec) {
2117 codec = avcodec_find_decoder(st->codec->codec_id);
2effd274 2118 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
01f4895c 2119 st->codec->parse_only = 1;
611c5741 2120 if (avcodec_open(st->codec, codec) < 0)
01f4895c 2121 st->codec->parse_only = 0;
cde25790
PG
2122 }
2123 }
85f07f22
FB
2124}
2125
2126static int open_input_stream(HTTPContext *c, const char *info)
2127{
2128 char buf[128];
2129 char input_filename[1024];
2130 AVFormatContext *s;
c351cc7f 2131 int buf_size, i, ret;
0c1a9eda 2132 int64_t stream_pos;
85f07f22
FB
2133
2134 /* find file name */
2135 if (c->stream->feed) {
2136 strcpy(input_filename, c->stream->feed->feed_filename);
2137 buf_size = FFM_PACKET_SIZE;
2138 /* compute position (absolute time) */
ab0287fc 2139 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
9fcae973
AK
2140 if ((ret = av_parse_time(&stream_pos, buf, 0)) < 0)
2141 return ret;
ab0287fc 2142 } else if (av_find_info_tag(buf, sizeof(buf), "buffer", info)) {
f747e6d3 2143 int prebuffer = strtol(buf, 0, 10);
0c1a9eda 2144 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
611c5741 2145 } else
0c1a9eda 2146 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
85f07f22
FB
2147 } else {
2148 strcpy(input_filename, c->stream->feed_filename);
2149 buf_size = 0;
2150 /* compute position (relative time) */
ab0287fc 2151 if (av_find_info_tag(buf, sizeof(buf), "date", info)) {
9fcae973
AK
2152 if ((ret = av_parse_time(&stream_pos, buf, 1)) < 0)
2153 return ret;
ace21da3 2154 } else
85f07f22 2155 stream_pos = 0;
85f07f22
FB
2156 }
2157 if (input_filename[0] == '\0')
2158 return -1;
2159
2160 /* open stream */
c351cc7f
BC
2161 if ((ret = av_open_input_file(&s, input_filename, c->stream->ifmt,
2162 buf_size, c->stream->ap_in)) < 0) {
2163 http_log("could not open %s: %d\n", input_filename, ret);
85f07f22 2164 return -1;
2effd274 2165 }
9dc0bc3d 2166 s->flags |= AVFMT_FLAG_GENPTS;
85f07f22 2167 c->fmt_in = s;
85fe4ae0 2168 if (strcmp(s->iformat->name, "ffm") && av_find_stream_info(c->fmt_in) < 0) {
20f93c3c
BC
2169 http_log("Could not find stream info '%s'\n", input_filename);
2170 av_close_input_file(s);
2171 return -1;
2172 }
115329f1 2173
2effd274
FB
2174 /* open each parser */
2175 for(i=0;i<s->nb_streams;i++)
2176 open_parser(s, i);
2177
2178 /* choose stream as clock source (we favorize video stream if
2179 present) for packet sending */
2180 c->pts_stream_index = 0;
2181 for(i=0;i<c->stream->nb_streams;i++) {
115329f1 2182 if (c->pts_stream_index == 0 &&
72415b2a 2183 c->stream->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO) {
2effd274
FB
2184 c->pts_stream_index = i;
2185 }
2186 }
85f07f22 2187
e8d27bc3 2188#if 1
611c5741 2189 if (c->fmt_in->iformat->read_seek)
60a04f7f 2190 av_seek_frame(c->fmt_in, -1, stream_pos, 0);
e240a0bb 2191#endif
2effd274
FB
2192 /* set the start time (needed for maxtime and RTP packet timing) */
2193 c->start_time = cur_time;
2194 c->first_pts = AV_NOPTS_VALUE;
85f07f22
FB
2195 return 0;
2196}
2197
e240a0bb
FB
2198/* return the server clock (in us) */
2199static int64_t get_server_clock(HTTPContext *c)
2effd274 2200{
e240a0bb 2201 /* compute current pts value from system time */
c3f58185 2202 return (cur_time - c->start_time) * 1000;
2effd274
FB
2203}
2204
e240a0bb
FB
2205/* return the estimated time at which the current packet must be sent
2206 (in us) */
2207static int64_t get_packet_send_clock(HTTPContext *c)
2effd274 2208{
e240a0bb 2209 int bytes_left, bytes_sent, frame_bytes;
115329f1 2210
e240a0bb 2211 frame_bytes = c->cur_frame_bytes;
611c5741 2212 if (frame_bytes <= 0)
e240a0bb 2213 return c->cur_pts;
611c5741 2214 else {
e240a0bb
FB
2215 bytes_left = c->buffer_end - c->buffer_ptr;
2216 bytes_sent = frame_bytes - bytes_left;
2217 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2effd274 2218 }
2effd274 2219}
2effd274 2220
2effd274 2221
2effd274
FB
2222static int http_prepare_data(HTTPContext *c)
2223{
2224 int i, len, ret;
2225 AVFormatContext *ctx;
2226
bc351386 2227 av_freep(&c->pb_buffer);
2effd274
FB
2228 switch(c->state) {
2229 case HTTPSTATE_SEND_DATA_HEADER:
2230 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
2ef6c124
SS
2231 av_metadata_set2(&c->fmt_ctx.metadata, "author" , c->stream->author , 0);
2232 av_metadata_set2(&c->fmt_ctx.metadata, "comment" , c->stream->comment , 0);
2233 av_metadata_set2(&c->fmt_ctx.metadata, "copyright", c->stream->copyright, 0);
2234 av_metadata_set2(&c->fmt_ctx.metadata, "title" , c->stream->title , 0);
2effd274 2235
3d9cc27d 2236 for(i=0;i<c->stream->nb_streams;i++) {
2effd274 2237 AVStream *st;
bb270c08 2238 AVStream *src;
2effd274
FB
2239 st = av_mallocz(sizeof(AVStream));
2240 c->fmt_ctx.streams[i] = st;
2241 /* if file or feed, then just take streams from FFStream struct */
115329f1 2242 if (!c->stream->feed ||
2effd274 2243 c->stream->feed == c->stream)
7c054ea7 2244 src = c->stream->streams[i];
2effd274 2245 else
7c054ea7
PG
2246 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2247
bb270c08
DB
2248 *st = *src;
2249 st->priv_data = 0;
01f4895c 2250 st->codec->frame_number = 0; /* XXX: should be done in
2effd274
FB
2251 AVStream, not in codec */
2252 }
3d9cc27d
BC
2253 /* set output format parameters */
2254 c->fmt_ctx.oformat = c->stream->fmt;
2255 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2256
2effd274
FB
2257 c->got_key_frame = 0;
2258
2259 /* prepare header and save header data in a stream */
b92c5452 2260 if (avio_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2effd274
FB
2261 /* XXX: potential leak */
2262 return -1;
2263 }
8978feda 2264 c->fmt_ctx.pb->seekable = 0;
2effd274 2265
8aae202e
BC
2266 /*
2267 * HACK to avoid mpeg ps muxer to spit many underflow errors
43fb279f 2268 * Default value from Libav
8aae202e
BC
2269 * Try to set it use configuration option
2270 */
2271 c->fmt_ctx.preload = (int)(0.5*AV_TIME_BASE);
2272 c->fmt_ctx.max_delay = (int)(0.7*AV_TIME_BASE);
2273
3c27199b 2274 av_set_parameters(&c->fmt_ctx, NULL);
929a9b75
BC
2275 if (av_write_header(&c->fmt_ctx) < 0) {
2276 http_log("Error writing output header\n");
f75cdda7 2277 return -1;
929a9b75 2278 }
ea4f8aab 2279 av_metadata_free(&c->fmt_ctx.metadata);
2effd274 2280
6dc7d80d 2281 len = avio_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2effd274
FB
2282 c->buffer_ptr = c->pb_buffer;
2283 c->buffer_end = c->pb_buffer + len;
2284
2285 c->state = HTTPSTATE_SEND_DATA;
85f07f22
FB
2286 c->last_packet_sent = 0;
2287 break;
2288 case HTTPSTATE_SEND_DATA:
2289 /* find a new packet */
3b371676
BC
2290 /* read a packet from the input stream */
2291 if (c->stream->feed)
2292 ffm_set_write_index(c->fmt_in,
2293 c->stream->feed->feed_write_index,
2294 c->stream->feed->feed_size);
2295
2296 if (c->stream->max_time &&
2297 c->stream->max_time + c->start_time - cur_time < 0)
2298 /* We have timed out */
2299 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2300 else {
2301 AVPacket pkt;
2302 redo:
d9aac267
HC
2303 ret = av_read_frame(c->fmt_in, &pkt);
2304 if (ret < 0) {
2305 if (c->stream->feed) {
3b371676
BC
2306 /* if coming from feed, it means we reached the end of the
2307 ffm file, so must wait for more data */
2308 c->state = HTTPSTATE_WAIT_FEED;
2309 return 1; /* state changed */
d9aac267
HC
2310 } else if (ret == AVERROR(EAGAIN)) {
2311 /* input not ready, come back later */
2312 return 0;
2effd274 2313 } else {
3b371676
BC
2314 if (c->stream->loop) {
2315 av_close_input_file(c->fmt_in);
2316 c->fmt_in = NULL;
2317 if (open_input_stream(c, "") < 0)
2318 goto no_loop;
2319 goto redo;
2320 } else {
2321 no_loop:
2322 /* must send trailer now because eof or error */
2323 c->state = HTTPSTATE_SEND_DATA_TRAILER;
1bc1cfdd 2324 }
3b371676
BC
2325 }
2326 } else {
084a8912 2327 int source_index = pkt.stream_index;
3b371676
BC
2328 /* update first pts if needed */
2329 if (c->first_pts == AV_NOPTS_VALUE) {
2330 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
2331 c->start_time = cur_time;
2332 }
2333 /* send it to the appropriate stream */
2334 if (c->stream->feed) {
2335 /* if coming from a feed, select the right stream */
2336 if (c->switch_pending) {
2337 c->switch_pending = 0;
cde25790 2338 for(i=0;i<c->stream->nb_streams;i++) {
3b371676 2339 if (c->switch_feed_streams[i] == pkt.stream_index)
cc947f04 2340 if (pkt.flags & AV_PKT_FLAG_KEY)
305ca590 2341 c->switch_feed_streams[i] = -1;
3b371676
BC
2342 if (c->switch_feed_streams[i] >= 0)
2343 c->switch_pending = 1;
cde25790 2344 }
3b371676
BC
2345 }
2346 for(i=0;i<c->stream->nb_streams;i++) {
a5ba4ced 2347 if (c->stream->feed_streams[i] == pkt.stream_index) {
78728064 2348 AVStream *st = c->fmt_in->streams[source_index];
3b371676 2349 pkt.stream_index = i;
cc947f04 2350 if (pkt.flags & AV_PKT_FLAG_KEY &&
72415b2a 2351 (st->codec->codec_type == AVMEDIA_TYPE_VIDEO ||
180b7026 2352 c->stream->nb_streams == 1))
0332f549
BC
2353 c->got_key_frame = 1;
2354 if (!c->stream->send_on_key || c->got_key_frame)
3b371676
BC
2355 goto send_it;
2356 }
2357 }
2358 } else {
2359 AVCodecContext *codec;
dc3a6a36
BC
2360 AVStream *ist, *ost;
2361 send_it:
2362 ist = c->fmt_in->streams[source_index];
3b371676
BC
2363 /* specific handling for RTP: we use several
2364 output stream (one for each RTP
2365 connection). XXX: need more abstract handling */
2366 if (c->is_packetized) {
3b371676 2367 /* compute send time and duration */
8f56ccca 2368 c->cur_pts = av_rescale_q(pkt.dts, ist->time_base, AV_TIME_BASE_Q);
f475f35f 2369 c->cur_pts -= c->first_pts;
8f56ccca 2370 c->cur_frame_duration = av_rescale_q(pkt.duration, ist->time_base, AV_TIME_BASE_Q);
3b371676
BC
2371 /* find RTP context */
2372 c->packet_stream_index = pkt.stream_index;
2373 ctx = c->rtp_ctx[c->packet_stream_index];
2374 if(!ctx) {
8a0b55ff 2375 av_free_packet(&pkt);
3b371676 2376 break;
8a0b55ff 2377 }
3b371676
BC
2378 codec = ctx->streams[0]->codec;
2379 /* only one stream per RTP connection */
2380 pkt.stream_index = 0;
2381 } else {
2382 ctx = &c->fmt_ctx;
2383 /* Fudge here */
3ab29d8e 2384 codec = ctx->streams[pkt.stream_index]->codec;
3b371676
BC
2385 }
2386
2387 if (c->is_packetized) {
2388 int max_packet_size;
90abbdba 2389 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP)
3b371676
BC
2390 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2391 else
2392 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
403ee835 2393 ret = ffio_open_dyn_packet_buf(&ctx->pb, max_packet_size);
3b371676 2394 } else {
b92c5452 2395 ret = avio_open_dyn_buf(&ctx->pb);
3b371676
BC
2396 }
2397 if (ret < 0) {
2398 /* XXX: potential leak */
2399 return -1;
2400 }
3ab29d8e
BC
2401 ost = ctx->streams[pkt.stream_index];
2402
8978feda 2403 ctx->pb->seekable = 0;
3b371676 2404 if (pkt.dts != AV_NOPTS_VALUE)
d80904cc 2405 pkt.dts = av_rescale_q(pkt.dts, ist->time_base, ost->time_base);
3b371676 2406 if (pkt.pts != AV_NOPTS_VALUE)
d80904cc
BC
2407 pkt.pts = av_rescale_q(pkt.pts, ist->time_base, ost->time_base);
2408 pkt.duration = av_rescale_q(pkt.duration, ist->time_base, ost->time_base);
3766ed72
BC
2409 if (av_write_frame(ctx, &pkt) < 0) {
2410 http_log("Error writing frame to output\n");
3b371676 2411 c->state = HTTPSTATE_SEND_DATA_TRAILER;
3766ed72 2412 }
3b371676 2413
6dc7d80d 2414 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
3b371676
BC
2415 c->cur_frame_bytes = len;
2416 c->buffer_ptr = c->pb_buffer;
2417 c->buffer_end = c->pb_buffer + len;
2418
2419 codec->frame_number++;
2420 if (len == 0) {
2421 av_free_packet(&pkt);
2422 goto redo;
f747e6d3 2423 }
85f07f22 2424 }
3b371676 2425 av_free_packet(&pkt);
85f07f22 2426 }
3b371676 2427 }
85f07f22
FB
2428 break;
2429 default:
2430 case HTTPSTATE_SEND_DATA_TRAILER:
2431 /* last packet test ? */
2effd274 2432 if (c->last_packet_sent || c->is_packetized)
85f07f22 2433 return -1;
2effd274 2434 ctx = &c->fmt_ctx;
85f07f22 2435 /* prepare header */
b92c5452 2436 if (avio_open_dyn_buf(&ctx->pb) < 0) {
2effd274
FB
2437 /* XXX: potential leak */
2438 return -1;
2439 }
8978feda 2440 c->fmt_ctx.pb->seekable = 0;
2effd274 2441 av_write_trailer(ctx);
6dc7d80d 2442 len = avio_close_dyn_buf(ctx->pb, &c->pb_buffer);
2effd274
FB
2443 c->buffer_ptr = c->pb_buffer;
2444 c->buffer_end = c->pb_buffer + len;
2445
85f07f22
FB
2446 c->last_packet_sent = 1;
2447 break;
2448 }
2449 return 0;
2450}
2451
2452/* should convert the format at the same time */
bc351386
FB
2453/* send data starting at c->buffer_ptr to the output connection
2454 (either UDP or TCP connection) */
5eb765ef 2455static int http_send_data(HTTPContext *c)
85f07f22 2456{
e240a0bb 2457 int len, ret;
85f07f22 2458
bc351386
FB
2459 for(;;) {
2460 if (c->buffer_ptr >= c->buffer_end) {
2461 ret = http_prepare_data(c);
2462 if (ret < 0)
2463 return -1;
611c5741 2464 else if (ret != 0)
bc351386
FB
2465 /* state change requested */
2466 break;
2effd274 2467 } else {
bc351386
FB
2468 if (c->is_packetized) {
2469 /* RTP data output */
2470 len = c->buffer_end - c->buffer_ptr;
2471 if (len < 4) {
2472 /* fail safe - should never happen */
2473 fail1:
2474 c->buffer_ptr = c->buffer_end;
2effd274
FB
2475 return 0;
2476 }
bc351386
FB
2477 len = (c->buffer_ptr[0] << 24) |
2478 (c->buffer_ptr[1] << 16) |
2479 (c->buffer_ptr[2] << 8) |
2480 (c->buffer_ptr[3]);
2481 if (len > (c->buffer_end - c->buffer_ptr))
2482 goto fail1;
e240a0bb
FB
2483 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2484 /* nothing to send yet: we can wait */
2485 return 0;
2486 }
2487
2488 c->data_count += len;
2489 update_datarate(&c->datarate, c->data_count);
2490 if (c->stream)
2491 c->stream->bytes_served += len;
2492
90abbdba 2493 if (c->rtp_protocol == RTSP_LOWER_TRANSPORT_TCP) {
bc351386 2494 /* RTP packets are sent inside the RTSP TCP connection */
ae628ec1 2495 AVIOContext *pb;
bc351386
FB
2496 int interleaved_index, size;
2497 uint8_t header[4];
2498 HTTPContext *rtsp_c;
115329f1 2499
bc351386
FB
2500 rtsp_c = c->rtsp_c;
2501 /* if no RTSP connection left, error */
2502 if (!rtsp_c)
2503 return -1;
2504 /* if already sending something, then wait. */
611c5741 2505 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
bc351386 2506 break;
b92c5452 2507 if (avio_open_dyn_buf(&pb) < 0)
bc351386
FB
2508 goto fail1;
2509 interleaved_index = c->packet_stream_index * 2;
2510 /* RTCP packets are sent at odd indexes */
2511 if (c->buffer_ptr[1] == 200)
2512 interleaved_index++;
2513 /* write RTSP TCP header */
2514 header[0] = '$';
2515 header[1] = interleaved_index;
2516 header[2] = len >> 8;
2517 header[3] = len;
77eb5504 2518 avio_write(pb, header, 4);
bc351386
FB
2519 /* write RTP packet data */
2520 c->buffer_ptr += 4;
77eb5504 2521 avio_write(pb, c->buffer_ptr, len);
6dc7d80d 2522 size = avio_close_dyn_buf(pb, &c->packet_buffer);
bc351386
FB
2523 /* prepare asynchronous TCP sending */
2524 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2525 rtsp_c->packet_buffer_end = c->packet_buffer + size;
e240a0bb 2526 c->buffer_ptr += len;
115329f1 2527
e240a0bb 2528 /* send everything we can NOW */
c60202df
AB
2529 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2530 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
611c5741 2531 if (len > 0)
e240a0bb 2532 rtsp_c->packet_buffer_ptr += len;
e240a0bb
FB
2533 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2534 /* if we could not send all the data, we will
2535 send it later, so a new state is needed to
2536 "lock" the RTSP TCP connection */
2537 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2538 break;
611c5741 2539 } else
e240a0bb
FB
2540 /* all data has been sent */
2541 av_freep(&c->packet_buffer);
e240a0bb
FB
2542 } else {
2543 /* send RTP packet directly in UDP */
bc351386 2544 c->buffer_ptr += 4;
115329f1 2545 url_write(c->rtp_handles[c->packet_stream_index],
bc351386 2546 c->buffer_ptr, len);
e240a0bb
FB
2547 c->buffer_ptr += len;
2548 /* here we continue as we can send several packets per 10 ms slot */
bc351386 2549 }
bc351386
FB
2550 } else {
2551 /* TCP data output */
c60202df 2552 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
bc351386 2553 if (len < 0) {
28c4741a
MS
2554 if (ff_neterrno() != AVERROR(EAGAIN) &&
2555 ff_neterrno() != AVERROR(EINTR))
bc351386
FB
2556 /* error : close connection */
2557 return -1;
611c5741 2558 else
bc351386 2559 return 0;
611c5741 2560 } else
bc351386 2561 c->buffer_ptr += len;
611c5741 2562
e240a0bb
FB
2563 c->data_count += len;
2564 update_datarate(&c->datarate, c->data_count);
2565 if (c->stream)
2566 c->stream->bytes_served += len;
2567 break;
2effd274 2568 }
85f07f22 2569 }
bc351386 2570 } /* for(;;) */
85f07f22
FB
2571 return 0;
2572}
2573
2574static int http_start_receive_data(HTTPContext *c)
2575{
2576 int fd;
2577
2578 if (c->stream->feed_opened)
2579 return -1;
2580
e322ea48
PG
2581 /* Don't permit writing to this one */
2582 if (c->stream->readonly)
2583 return -1;
2584
85f07f22
FB
2585 /* open feed */
2586 fd = open(c->stream->feed_filename, O_RDWR);
929a9b75
BC
2587 if (fd < 0) {
2588 http_log("Error opening feeder file: %s\n", strerror(errno));
85f07f22 2589 return -1;
929a9b75 2590 }
85f07f22 2591 c->feed_fd = fd;
115329f1 2592
861ec13a
BC
2593 if (c->stream->truncate) {
2594 /* truncate feed file */
2595 ffm_write_write_index(c->feed_fd, FFM_PACKET_SIZE);
2596 ftruncate(c->feed_fd, FFM_PACKET_SIZE);
2597 http_log("Truncating feed file '%s'\n", c->stream->feed_filename);
2598 } else {
1f611549
BC
2599 if ((c->stream->feed_write_index = ffm_read_write_index(fd)) < 0) {
2600 http_log("Error reading write index from feed file: %s\n", strerror(errno));
2601 return -1;
2602 }
861ec13a
BC
2603 }
2604
7e24aa0c 2605 c->stream->feed_write_index = FFMAX(ffm_read_write_index(fd), FFM_PACKET_SIZE);
85f07f22
FB
2606 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2607 lseek(fd, 0, SEEK_SET);
2608
2609 /* init buffer input */
2610 c->buffer_ptr = c->buffer;
2611 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2612 c->stream->feed_opened = 1;
fd7bec5e 2613 c->chunked_encoding = !!av_stristr(c->buffer, "Transfer-Encoding: chunked");
85f07f22
FB
2614 return 0;
2615}
115329f1 2616
85f07f22
FB
2617static int http_receive_data(HTTPContext *c)
2618{
85f07f22 2619 HTTPContext *c1;
19c8c4ec 2620 int len, loop_run = 0;
85f07f22 2621
19c8c4ec
RB
2622 while (c->chunked_encoding && !c->chunk_size &&
2623 c->buffer_end > c->buffer_ptr) {
2624 /* read chunk header, if present */
2625 len = recv(c->fd, c->buffer_ptr, 1, 0);
2626
2627 if (len < 0) {
28c4741a
MS
2628 if (ff_neterrno() != AVERROR(EAGAIN) &&
2629 ff_neterrno() != AVERROR(EINTR))
19c8c4ec
RB
2630 /* error : close connection */
2631 goto fail;
686d6f40 2632 return 0;
19c8c4ec
RB
2633 } else if (len == 0) {
2634 /* end of connection : close it */
2635 goto fail;
2636 } else if (c->buffer_ptr - c->buffer >= 2 &&
2637 !memcmp(c->buffer_ptr - 1, "\r\n", 2)) {
2638 c->chunk_size = strtol(c->buffer, 0, 16);
2639 if (c->chunk_size == 0) // end of stream
2640 goto fail;
2641 c->buffer_ptr = c->buffer;
2642 break;
2643 } else if (++loop_run > 10) {
2644 /* no chunk header, abort */
2645 goto fail;
2646 } else {
2647 c->buffer_ptr++;
2648 }
2649 }
a6e14edd 2650
19c8c4ec
RB
2651 if (c->buffer_end > c->buffer_ptr) {
2652 len = recv(c->fd, c->buffer_ptr,
2653 FFMIN(c->chunk_size, c->buffer_end - c->buffer_ptr), 0);
a6e14edd 2654 if (len < 0) {
28c4741a
MS
2655 if (ff_neterrno() != AVERROR(EAGAIN) &&
2656 ff_neterrno() != AVERROR(EINTR))
a6e14edd
PG
2657 /* error : close connection */
2658 goto fail;
611c5741 2659 } else if (len == 0)
a6e14edd
PG
2660 /* end of connection : close it */
2661 goto fail;
611c5741 2662 else {
19c8c4ec 2663 c->chunk_size -= len;
a6e14edd
PG
2664 c->buffer_ptr += len;
2665 c->data_count += len;
5eb765ef 2666 update_datarate(&c->datarate, c->data_count);
a6e14edd
PG
2667 }
2668 }
2669
d445a7e9
PG
2670 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2671 if (c->buffer[0] != 'f' ||
2672 c->buffer[1] != 'm') {
2673 http_log("Feed stream has become desynchronized -- disconnecting\n");
2674 goto fail;
2675 }
2676 }
2677
85f07f22 2678 if (c->buffer_ptr >= c->buffer_end) {
f747e6d3 2679 FFStream *feed = c->stream;
85f07f22
FB
2680 /* a packet has been received : write it in the store, except
2681 if header */
2682 if (c->data_count > FFM_PACKET_SIZE) {
115329f1 2683
949b1a13 2684 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
85f07f22
FB
2685 /* XXX: use llseek or url_seek */
2686 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
929a9b75
BC
2687 if (write(c->feed_fd, c->buffer, FFM_PACKET_SIZE) < 0) {
2688 http_log("Error writing to feed file: %s\n", strerror(errno));
2689 goto fail;
2690 }
115329f1 2691
85f07f22
FB
2692 feed->feed_write_index += FFM_PACKET_SIZE;
2693 /* update file size */
2694 if (feed->feed_write_index > c->stream->feed_size)
2695 feed->feed_size = feed->feed_write_index;
2696
2697 /* handle wrap around if max file size reached */
6b0bdc75 2698 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
85f07f22
FB
2699 feed->feed_write_index = FFM_PACKET_SIZE;
2700
2701 /* write index */
2779cdad
PK
2702 if (ffm_write_write_index(c->feed_fd, feed->feed_write_index) < 0) {
2703 http_log("Error writing index to feed file: %s\n", strerror(errno));
2704 goto fail;
2705 }
85f07f22
FB
2706
2707 /* wake up any waiting connections */
2708 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
115329f1 2709 if (c1->state == HTTPSTATE_WAIT_FEED &&
611c5741 2710 c1->stream->feed == c->stream->feed)
85f07f22 2711 c1->state = HTTPSTATE_SEND_DATA;
85f07f22 2712 }
f747e6d3
PG
2713 } else {
2714 /* We have a header in our hands that contains useful data */
f2972c8c 2715 AVFormatContext *s = NULL;
ae628ec1 2716 AVIOContext *pb;
bd7cf6ad 2717 AVInputFormat *fmt_in;
f747e6d3
PG
2718 int i;
2719
bd7cf6ad
FB
2720 /* use feed output format name to find corresponding input format */
2721 fmt_in = av_find_input_format(feed->fmt->name);
2722 if (!fmt_in)
2723 goto fail;
2724
83fddaeb
AK
2725 pb = avio_alloc_context(c->buffer, c->buffer_end - c->buffer,
2726 0, NULL, NULL, NULL, NULL);
8978feda 2727 pb->seekable = 0;
697efa36 2728
e6f0deab
BC
2729 if (av_open_input_stream(&s, pb, c->stream->feed_filename, fmt_in, NULL) < 0) {
2730 av_free(pb);
2731 goto fail;
2732 }
f747e6d3
PG
2733
2734 /* Now we have the actual streams */
f2972c8c
BC
2735 if (s->nb_streams != feed->nb_streams) {
2736 av_close_input_stream(s);
86771c68 2737 av_free(pb);
77553ae3
BC
2738 http_log("Feed '%s' stream number does not match registered feed\n",
2739 c->stream->feed_filename);
f747e6d3
PG
2740 goto fail;
2741 }
f2972c8c 2742
cb51aef1
BC
2743 for (i = 0; i < s->nb_streams; i++) {
2744 AVStream *fst = feed->streams[i];
2745 AVStream *st = s->streams[i];
5634f30c 2746 avcodec_copy_context(fst->codec, st->codec);
cb51aef1 2747 }
f2972c8c
BC
2748
2749 av_close_input_stream(s);
86771c68 2750 av_free(pb);
85f07f22
FB
2751 }
2752 c->buffer_ptr = c->buffer;
2753 }
2754
85f07f22
FB
2755 return 0;
2756 fail:
2757 c->stream->feed_opened = 0;
2758 close(c->feed_fd);
c1593d0e
BC
2759 /* wake up any waiting connections to stop waiting for feed */
2760 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
2761 if (c1->state == HTTPSTATE_WAIT_FEED &&
2762 c1->stream->feed == c->stream->feed)
2763 c1->state = HTTPSTATE_SEND_DATA_TRAILER;
2764 }
85f07f22
FB
2765 return -1;
2766}
2767
2effd274
FB
2768/********************************************************************/
2769/* RTSP handling */
2770
2771static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2772{
2773 const char *str;
2774 time_t ti;
0156fcf2 2775 struct tm *tm;
2effd274
FB
2776 char buf2[32];
2777
2778 switch(error_number) {
7e665cd3
LA
2779 case RTSP_STATUS_OK:
2780 str = "OK";
2781 break;
2782 case RTSP_STATUS_METHOD:
2783 str = "Method Not Allowed";
2784 break;
2785 case RTSP_STATUS_BANDWIDTH:
2786 str = "Not Enough Bandwidth";
2787 break;
2788 case RTSP_STATUS_SESSION:
2789 str = "Session Not Found";
2790 break;
2791 case RTSP_STATUS_STATE:
2792 str = "Method Not Valid in This State";
2793 break;
2794 case RTSP_STATUS_AGGREGATE:
2795 str = "Aggregate operation not allowed";
2796 break;
2797 case RTSP_STATUS_ONLY_AGGREGATE:
2798 str = "Only aggregate operation allowed";
2799 break;
2800 case RTSP_STATUS_TRANSPORT:
2801 str = "Unsupported transport";
2802 break;
2803 case RTSP_STATUS_INTERNAL:
2804 str = "Internal Server Error";
2805 break;
2806 case RTSP_STATUS_SERVICE:
2807 str = "Service Unavailable";
2808 break;
2809 case RTSP_STATUS_VERSION:
2810 str = "RTSP Version not supported";
2811 break;
2effd274
FB
2812 default:
2813 str = "Unknown Error";
2814 break;
2815 }
115329f1 2816
d9d86e00
AK
2817 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2818 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2effd274
FB
2819
2820 /* output GMT time */
2821 ti = time(NULL);
0156fcf2
HC
2822 tm = gmtime(&ti);
2823 strftime(buf2, sizeof(buf2), "%a, %d %b %Y %H:%M:%S", tm);
d9d86e00 2824 avio_printf(c->pb, "Date: %s GMT\r\n", buf2);
2effd274
FB
2825}
2826
2827static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2828{
2829 rtsp_reply_header(c, error_number);
d9d86e00 2830 avio_printf(c->pb, "\r\n");
2effd274
FB
2831}
2832
2833static int rtsp_parse_request(HTTPContext *c)
2834{
2835 const char *p, *p1, *p2;
2836 char cmd[32];
2837 char url[1024];
2838 char protocol[32];
2839 char line[1024];
2effd274 2840 int len;
a9e534d5 2841 RTSPMessageHeader header1, *header = &header1;
115329f1 2842
2effd274
FB
2843 c->buffer_ptr[0] = '\0';
2844 p = c->buffer;
115329f1 2845
2effd274
FB
2846 get_word(cmd, sizeof(cmd), &p);
2847 get_word(url, sizeof(url), &p);
2848 get_word(protocol, sizeof(protocol), &p);
2849
f7d78f36
MR
2850 av_strlcpy(c->method, cmd, sizeof(c->method));
2851 av_strlcpy(c->url, url, sizeof(c->url));
2852 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2effd274 2853
b92c5452 2854 if (avio_open_dyn_buf(&c->pb) < 0) {
2effd274
FB
2855 /* XXX: cannot do more */
2856 c->pb = NULL; /* safety */
2857 return -1;
2858 }
2859
2860 /* check version name */
2861 if (strcmp(protocol, "RTSP/1.0") != 0) {
2862 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2863 goto the_end;
2864 }
2865
2866 /* parse each header line */
d541a7d2 2867 memset(header, 0, sizeof(*header));
2effd274
FB
2868 /* skip to next line */
2869 while (*p != '\n' && *p != '\0')
2870 p++;
2871 if (*p == '\n')
2872 p++;
2873 while (*p != '\0') {
c966c912 2874 p1 = memchr(p, '\n', (char *)c->buffer_ptr - p);
2effd274
FB
2875 if (!p1)
2876 break;
2877 p2 = p1;
2878 if (p2 > p && p2[-1] == '\r')
2879 p2--;
2880 /* skip empty line */
2881 if (p2 == p)
2882 break;
2883 len = p2 - p;
2884 if (len > sizeof(line) - 1)
2885 len = sizeof(line) - 1;
2886 memcpy(line, p, len);
2887 line[len] = '\0';
77223c53 2888 ff_rtsp_parse_line(header, line, NULL, NULL);
2effd274
FB
2889 p = p1 + 1;
2890 }
2891
2892 /* handle sequence number */
2893 c->seq = header->seq;
2894
611c5741 2895 if (!strcmp(cmd, "DESCRIBE"))
2effd274 2896 rtsp_cmd_describe(c, url);
611c5741 2897 else if (!strcmp(cmd, "OPTIONS"))
0df65975 2898 rtsp_cmd_options(c, url);
611c5741 2899 else if (!strcmp(cmd, "SETUP"))
2effd274 2900 rtsp_cmd_setup(c, url, header);
611c5741 2901 else if (!strcmp(cmd, "PLAY"))
2effd274 2902 rtsp_cmd_play(c, url, header);
611c5741 2903 else if (!strcmp(cmd, "PAUSE"))
2effd274 2904 rtsp_cmd_pause(c, url, header);
611c5741 2905 else if (!strcmp(cmd, "TEARDOWN"))
2effd274 2906 rtsp_cmd_teardown(c, url, header);
611c5741 2907 else
2effd274 2908 rtsp_reply_error(c, RTSP_STATUS_METHOD);
611c5741 2909
2effd274 2910 the_end:
6dc7d80d 2911 len = avio_close_dyn_buf(c->pb, &c->pb_buffer);
2effd274
FB
2912 c->pb = NULL; /* safety */
2913 if (len < 0) {
2914 /* XXX: cannot do more */
2915 return -1;
2916 }
2917 c->buffer_ptr = c->pb_buffer;
2918 c->buffer_end = c->pb_buffer + len;
2919 c->state = RTSPSTATE_SEND_REPLY;
2920 return 0;
2921}
2922
115329f1 2923static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
829ac53d 2924 struct in_addr my_ip)
2effd274 2925{
dd723472 2926 AVFormatContext *avc;
9389b925 2927 AVStream *avs = NULL;
dd723472 2928 int i;
115329f1 2929
8e2fd8e1 2930 avc = avformat_alloc_context();
dd723472 2931 if (avc == NULL) {
2effd274 2932 return -1;
dd723472 2933 }
2ef6c124
SS
2934 av_metadata_set2(&avc->metadata, "title",
2935 stream->title[0] ? stream->title : "No Title", 0);
dd723472
LA
2936 avc->nb_streams = stream->nb_streams;
2937 if (stream->is_multicast) {
2938 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2939 inet_ntoa(stream->multicast_ip),
2940 stream->multicast_port, stream->multicast_ttl);
43d09faf
MS
2941 } else {
2942 snprintf(avc->filename, 1024, "rtp://0.0.0.0");
dd723472 2943 }
115329f1 2944
9389b925
AJ
2945 if (avc->nb_streams >= INT_MAX/sizeof(*avc->streams) ||
2946 !(avc->streams = av_malloc(avc->nb_streams * sizeof(*avc->streams))))
2947 goto sdp_done;
9389b925
AJ
2948 if (avc->nb_streams >= INT_MAX/sizeof(*avs) ||
2949 !(avs = av_malloc(avc->nb_streams * sizeof(*avs))))
2950 goto sdp_done;
2951
2effd274 2952 for(i = 0; i < stream->nb_streams; i++) {
dd723472
LA
2953 avc->streams[i] = &avs[i];
2954 avc->streams[i]->codec = stream->streams[i]->codec;
2effd274 2955 }
dd723472 2956 *pbuffer = av_mallocz(2048);
c3675dfe 2957 av_sdp_create(&avc, 1, *pbuffer, 2048);
9389b925
AJ
2958
2959 sdp_done:
9389b925 2960 av_free(avc->streams);
ea4f8aab 2961 av_metadata_free(&avc->metadata);
dd723472 2962 av_free(avc);
9389b925 2963 av_free(avs);
dd723472
LA
2964
2965 return strlen(*pbuffer);
2effd274
FB
2966}
2967
0df65975
AR
2968static void rtsp_cmd_options(HTTPContext *c, const char *url)
2969{
2970// rtsp_reply_header(c, RTSP_STATUS_OK);
d9d86e00
AK
2971 avio_printf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2972 avio_printf(c->pb, "CSeq: %d\r\n", c->seq);
2973 avio_printf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2974 avio_printf(c->pb, "\r\n");
0df65975
AR
2975}
2976
2effd274
FB
2977static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2978{
2979 FFStream *stream;
2980 char path1[1024];
2981 const char *path;
0c1a9eda 2982 uint8_t *content;
829ac53d
FB
2983 int content_length, len;
2984 struct sockaddr_in my_addr;
115329f1 2985
2effd274 2986 /* find which url is asked */
f3bfe388 2987 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2988 path = path1;
2989 if (*path == '/')
2990 path++;
2991
2992 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
2993 if (!stream->is_feed &&
2994 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2effd274
FB
2995 !strcmp(path, stream->filename)) {
2996 goto found;
2997 }
2998 }
2999 /* no stream found */
3000 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3001 return;
3002
3003 found:
3004 /* prepare the media description in sdp format */
829ac53d
FB
3005
3006 /* get the host IP */
3007 len = sizeof(my_addr);
3008 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
829ac53d 3009 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
2effd274
FB
3010 if (content_length < 0) {
3011 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3012 return;
3013 }
3014 rtsp_reply_header(c, RTSP_STATUS_OK);
d9d86e00
AK
3015 avio_printf(c->pb, "Content-Base: %s/\r\n", url);
3016 avio_printf(c->pb, "Content-Type: application/sdp\r\n");
3017 avio_printf(c->pb, "Content-Length: %d\r\n", content_length);
3018 avio_printf(c->pb, "\r\n");
77eb5504 3019 avio_write(c->pb, content, content_length);
ea4f8aab 3020 av_free(content);
2effd274
FB
3021}
3022
3023static HTTPContext *find_rtp_session(const char *session_id)
3024{
3025 HTTPContext *c;
3026
3027 if (session_id[0] == '\0')
3028 return NULL;
3029
3030 for(c = first_http_ctx; c != NULL; c = c->next) {
3031 if (!strcmp(c->session_id, session_id))
3032 return c;
3033 }
3034 return NULL;
3035}
3036
a9e534d5 3037static RTSPTransportField *find_transport(RTSPMessageHeader *h, enum RTSPLowerTransport lower_transport)
2effd274
FB
3038{
3039 RTSPTransportField *th;
3040 int i;
3041
3042 for(i=0;i<h->nb_transports;i++) {
3043 th = &h->transports[i];
90abbdba 3044 if (th->lower_transport == lower_transport)
2effd274
FB
3045 return th;
3046 }
3047 return NULL;
3048}
3049
115329f1 3050static void rtsp_cmd_setup(HTTPContext *c, const char *url,
a9e534d5 3051 RTSPMessageHeader *h)
2effd274
FB
3052{
3053 FFStream *stream;
bacde646 3054 int stream_index, rtp_port, rtcp_port;
2effd274
FB
3055 char buf[1024];
3056 char path1[1024];
3057 const char *path;
3058 HTTPContext *rtp_c;
3059 RTSPTransportField *th;
3060 struct sockaddr_in dest_addr;
3061 RTSPActionServerSetup setup;
115329f1 3062
2effd274 3063 /* find which url is asked */
f3bfe388 3064 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
3065 path = path1;
3066 if (*path == '/')
3067 path++;
3068
3069 /* now check each stream */
3070 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
3071 if (!stream->is_feed &&
3072 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
2effd274
FB
3073 /* accept aggregate filenames only if single stream */
3074 if (!strcmp(path, stream->filename)) {
3075 if (stream->nb_streams != 1) {
3076 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
3077 return;
3078 }
3079 stream_index = 0;
3080 goto found;
3081 }
115329f1 3082
2effd274
FB
3083 for(stream_index = 0; stream_index < stream->nb_streams;
3084 stream_index++) {
115329f1 3085 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2effd274
FB
3086 stream->filename, stream_index);
3087 if (!strcmp(path, buf))
3088 goto found;
3089 }
3090 }
3091 }
3092 /* no stream found */
3093 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
3094 return;
3095 found:
3096
3097 /* generate session id if needed */
611c5741 3098 if (h->session_id[0] == '\0')
1df93ae9 3099 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
042819c5 3100 av_lfg_get(&random_state), av_lfg_get(&random_state));
2effd274
FB
3101
3102 /* find rtp session, and create it if none found */
3103 rtp_c = find_rtp_session(h->session_id);
3104 if (!rtp_c) {
bc351386 3105 /* always prefer UDP */
90abbdba 3106 th = find_transport(h, RTSP_LOWER_TRANSPORT_UDP);
bc351386 3107 if (!th) {
90abbdba 3108 th = find_transport(h, RTSP_LOWER_TRANSPORT_TCP);
bc351386
FB
3109 if (!th) {
3110 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3111 return;
3112 }
3113 }
3114
3115 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
90abbdba 3116 th->lower_transport);
2effd274
FB
3117 if (!rtp_c) {
3118 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
3119 return;
3120 }
3121
3122 /* open input stream */
3123 if (open_input_stream(rtp_c, "") < 0) {
3124 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
3125 return;
3126 }
2effd274 3127 }
115329f1 3128
2effd274
FB
3129 /* test if stream is OK (test needed because several SETUP needs
3130 to be done for a given file) */
3131 if (rtp_c->stream != stream) {
3132 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
3133 return;
3134 }
115329f1 3135
2effd274
FB
3136 /* test if stream is already set up */
3137 if (rtp_c->rtp_ctx[stream_index]) {
3138 rtsp_reply_error(c, RTSP_STATUS_STATE);
3139 return;
3140 }
3141
3142 /* check transport */
3143 th = find_transport(h, rtp_c->rtp_protocol);
90abbdba 3144 if (!th || (th->lower_transport == RTSP_LOWER_TRANSPORT_UDP &&
2effd274
FB
3145 th->client_port_min <= 0)) {
3146 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3147 return;
3148 }
3149
3150 /* setup default options */
3151 setup.transport_option[0] = '\0';
3152 dest_addr = rtp_c->from_addr;
3153 dest_addr.sin_port = htons(th->client_port_min);
115329f1 3154
2effd274 3155 /* setup stream */
bc351386 3156 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
2effd274
FB
3157 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
3158 return;
3159 }
3160
3161 /* now everything is OK, so we can send the connection parameters */
3162 rtsp_reply_header(c, RTSP_STATUS_OK);
3163 /* session ID */
d9d86e00 3164 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2effd274
FB
3165
3166 switch(rtp_c->rtp_protocol) {
90abbdba 3167 case RTSP_LOWER_TRANSPORT_UDP:
bacde646
LB
3168 rtp_port = rtp_get_local_rtp_port(rtp_c->rtp_handles[stream_index]);
3169 rtcp_port = rtp_get_local_rtcp_port(rtp_c->rtp_handles[stream_index]);
d9d86e00 3170 avio_printf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
2effd274 3171 "client_port=%d-%d;server_port=%d-%d",
bacde646
LB
3172 th->client_port_min, th->client_port_max,
3173 rtp_port, rtcp_port);
2effd274 3174 break;
90abbdba 3175 case RTSP_LOWER_TRANSPORT_TCP:
d9d86e00 3176 avio_printf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
2effd274
FB
3177 stream_index * 2, stream_index * 2 + 1);
3178 break;
3179 default:
3180 break;
3181 }
611c5741 3182 if (setup.transport_option[0] != '\0')
d9d86e00
AK
3183 avio_printf(c->pb, ";%s", setup.transport_option);
3184 avio_printf(c->pb, "\r\n");
115329f1 3185
2effd274 3186
d9d86e00 3187 avio_printf(c->pb, "\r\n");
2effd274
FB
3188}
3189
3190
3191/* find an rtp connection by using the session ID. Check consistency
3192 with filename */
115329f1 3193static HTTPContext *find_rtp_session_with_url(const char *url,
2effd274
FB
3194 const char *session_id)
3195{
3196 HTTPContext *rtp_c;
3197 char path1[1024];
3198 const char *path;
94d9ad5f 3199 char buf[1024];
c2ca851b 3200 int s, len;
2effd274
FB
3201
3202 rtp_c = find_rtp_session(session_id);
3203 if (!rtp_c)
3204 return NULL;
3205
3206 /* find which url is asked */
f3bfe388 3207 av_url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
3208 path = path1;
3209 if (*path == '/')
3210 path++;
94d9ad5f
GF
3211 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
3212 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
3213 snprintf(buf, sizeof(buf), "%s/streamid=%d",
3214 rtp_c->stream->filename, s);
3215 if(!strncmp(path, buf, sizeof(buf))) {
3216 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
3217 return rtp_c;
3218 }
3219 }
c2ca851b
MS
3220 len = strlen(path);
3221 if (len > 0 && path[len - 1] == '/' &&
3222 !strncmp(path, rtp_c->stream->filename, len - 1))
3223 return rtp_c;
94d9ad5f 3224 return NULL;
2effd274
FB
3225}
3226
a9e534d5 3227static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPMessageHeader *h)
2effd274
FB
3228{
3229 HTTPContext *rtp_c;
3230
3231 rtp_c = find_rtp_session_with_url(url, h->session_id);
3232 if (!rtp_c) {
3233 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3234 return;
3235 }
115329f1 3236
2effd274
FB
3237 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3238 rtp_c->state != HTTPSTATE_WAIT_FEED &&
3239 rtp_c->state != HTTPSTATE_READY) {
3240 rtsp_reply_error(c, RTSP_STATUS_STATE);
3241 return;
3242 }
3243
3244 rtp_c->state = HTTPSTATE_SEND_DATA;
115329f1 3245
2effd274
FB
3246 /* now everything is OK, so we can send the connection parameters */
3247 rtsp_reply_header(c, RTSP_STATUS_OK);
3248 /* session ID */
d9d86e00
AK
3249 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3250 avio_printf(c->pb, "\r\n");
2effd274
FB
3251}
3252
a9e534d5 3253static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPMessageHeader *h)
2effd274
FB
3254{
3255 HTTPContext *rtp_c;
3256
3257 rtp_c = find_rtp_session_with_url(url, h->session_id);
3258 if (!rtp_c) {
3259 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3260 return;
3261 }
115329f1 3262
2effd274
FB
3263 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
3264 rtp_c->state != HTTPSTATE_WAIT_FEED) {
3265 rtsp_reply_error(c, RTSP_STATUS_STATE);
3266 return;
3267 }
115329f1 3268
2effd274 3269 rtp_c->state = HTTPSTATE_READY;
1bc1cfdd 3270 rtp_c->first_pts = AV_NOPTS_VALUE;
2effd274
FB
3271 /* now everything is OK, so we can send the connection parameters */
3272 rtsp_reply_header(c, RTSP_STATUS_OK);
3273 /* session ID */
d9d86e00
AK
3274 avio_printf(c->pb, "Session: %s\r\n", rtp_c->session_id);
3275 avio_printf(c->pb, "\r\n");
2effd274
FB
3276}
3277
a9e534d5 3278static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPMessageHeader *h)
2effd274
FB
3279{
3280 HTTPContext *rtp_c;
b0b2faa7 3281 char session_id[32];
2effd274
FB
3282
3283 rtp_c = find_rtp_session_with_url(url, h->session_id);
3284 if (!rtp_c) {
3285 rtsp_reply_error(c, RTSP_STATUS_SESSION);
3286 return;
3287 }
115329f1 3288
f7d78f36 3289 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
b0b2faa7 3290
2effd274
FB
3291 /* abort the session */
3292 close_connection(rtp_c);
3293
2effd274
FB
3294 /* now everything is OK, so we can send the connection parameters */
3295 rtsp_reply_header(c, RTSP_STATUS_OK);
3296 /* session ID */
d9d86e00
AK
3297 avio_printf(c->pb, "Session: %s\r\n", session_id);
3298 avio_printf(c->pb, "\r\n");
2effd274
FB
3299}
3300
3301
3302/********************************************************************/
3303/* RTP handling */
3304
115329f1 3305static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
bc351386 3306 FFStream *stream, const char *session_id,
90abbdba 3307 enum RTSPLowerTransport rtp_protocol)
2effd274
FB
3308{
3309 HTTPContext *c = NULL;
bc351386 3310 const char *proto_str;
115329f1 3311
2effd274
FB
3312 /* XXX: should output a warning page when coming
3313 close to the connection limit */
3314 if (nb_connections >= nb_max_connections)
3315 goto fail;
115329f1 3316
2effd274
FB
3317 /* add a new connection */
3318 c = av_mallocz(sizeof(HTTPContext));
3319 if (!c)
3320 goto fail;
115329f1 3321
2effd274
FB
3322 c->fd = -1;
3323 c->poll_entry = NULL;
6edd6884 3324 c->from_addr = *from_addr;
2effd274
FB
3325 c->buffer_size = IOBUFFER_INIT_SIZE;
3326 c->buffer = av_malloc(c->buffer_size);
3327 if (!c->buffer)
3328 goto fail;
3329 nb_connections++;
3330 c->stream = stream;
f7d78f36 3331 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
2effd274
FB
3332 c->state = HTTPSTATE_READY;
3333 c->is_packetized = 1;
bc351386
FB
3334 c->rtp_protocol = rtp_protocol;
3335
2effd274 3336 /* protocol is shown in statistics */
bc351386 3337 switch(c->rtp_protocol) {
90abbdba 3338 case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
bc351386
FB
3339 proto_str = "MCAST";
3340 break;
90abbdba 3341 case RTSP_LOWER_TRANSPORT_UDP:
bc351386
FB
3342 proto_str = "UDP";
3343 break;
90abbdba 3344 case RTSP_LOWER_TRANSPORT_TCP:
bc351386
FB
3345 proto_str = "TCP";
3346 break;
3347 default:
3348 proto_str = "???";
3349 break;
3350 }
f7d78f36
MR
3351 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3352 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
2effd274 3353
6edd6884
FB
3354 current_bandwidth += stream->bandwidth;
3355
2effd274
FB
3356 c->next = first_http_ctx;
3357 first_http_ctx = c;
3358 return c;
115329f1