cosmetics, move declaration where it is used, remove now useless block
[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 *
b78e7197
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5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
773a21b8
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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 *
b78e7197 12 * FFmpeg is distributed in the hope that it will be useful,
85f07f22 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
85f07f22 16 *
773a21b8 17 * You should have received a copy of the GNU Lesser General Public
b78e7197 18 * License along with FFmpeg; if not, write to the Free Software
5509bffa 19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
85f07f22 20 */
364a9607 21
0f4e8165 22#include "config.h"
3cf9ea7f 23#ifndef HAVE_CLOSESOCKET
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24#define closesocket close
25#endif
26#include <string.h>
27#include <stdlib.h>
245976da
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28#include "libavutil/random.h"
29#include "libavutil/avstring.h"
30#include "libavformat/avformat.h"
31#include "libavformat/network.h"
32#include "libavformat/os_support.h"
33#include "libavformat/rtp.h"
34#include "libavformat/rtsp.h"
773a21b8 35
85f07f22 36#include <stdarg.h>
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37#include <unistd.h>
38#include <fcntl.h>
39#include <sys/ioctl.h>
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40#ifdef HAVE_POLL_H
41#include <poll.h>
b0c858d8 42#endif
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43#include <errno.h>
44#include <sys/time.h>
4568325a 45#undef time //needed because HAVE_AV_CONFIG_H is defined on top
85f07f22 46#include <time.h>
5eb765ef 47#include <sys/wait.h>
85f07f22 48#include <signal.h>
18b67ae5 49#ifdef HAVE_DLFCN_H
2effd274 50#include <dlfcn.h>
6638d424 51#endif
2effd274 52
4ce5df08 53#include "cmdutils.h"
85f07f22 54
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55#undef exit
56
64555bd9 57const char program_name[] = "FFserver";
ea9c581f 58const int program_birth_year = 2000;
86074ed1 59
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60static const OptionDef options[];
61
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62/* maximum number of simultaneous HTTP connections */
63#define HTTP_MAX_CONNECTIONS 2000
64
65enum HTTPState {
66 HTTPSTATE_WAIT_REQUEST,
67 HTTPSTATE_SEND_HEADER,
68 HTTPSTATE_SEND_DATA_HEADER,
2effd274 69 HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */
85f07f22 70 HTTPSTATE_SEND_DATA_TRAILER,
115329f1 71 HTTPSTATE_RECEIVE_DATA,
2effd274 72 HTTPSTATE_WAIT_FEED, /* wait for data from the feed */
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73 HTTPSTATE_READY,
74
75 RTSPSTATE_WAIT_REQUEST,
76 RTSPSTATE_SEND_REPLY,
bc351386 77 RTSPSTATE_SEND_PACKET,
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78};
79
80const char *http_state[] = {
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81 "HTTP_WAIT_REQUEST",
82 "HTTP_SEND_HEADER",
83
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84 "SEND_DATA_HEADER",
85 "SEND_DATA",
86 "SEND_DATA_TRAILER",
87 "RECEIVE_DATA",
88 "WAIT_FEED",
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89 "READY",
90
91 "RTSP_WAIT_REQUEST",
92 "RTSP_SEND_REPLY",
bc351386 93 "RTSP_SEND_PACKET",
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94};
95
cde25790 96#define IOBUFFER_INIT_SIZE 8192
85f07f22 97
85f07f22 98/* timeouts are in ms */
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99#define HTTP_REQUEST_TIMEOUT (15 * 1000)
100#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000)
101
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102#define SYNC_TIMEOUT (10 * 1000)
103
5eb765ef 104typedef struct {
0c1a9eda 105 int64_t count1, count2;
c3f58185 106 int64_t time1, time2;
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107} DataRateData;
108
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109/* context associated with one connection */
110typedef struct HTTPContext {
111 enum HTTPState state;
112 int fd; /* socket file descriptor */
113 struct sockaddr_in from_addr; /* origin */
114 struct pollfd *poll_entry; /* used when polling */
c3f58185 115 int64_t timeout;
0c1a9eda 116 uint8_t *buffer_ptr, *buffer_end;
85f07f22 117 int http_error;
edfdd798 118 int post;
85f07f22 119 struct HTTPContext *next;
42a63c6a 120 int got_key_frame; /* stream 0 => 1, stream 1 => 2, stream 2=> 4 */
0c1a9eda 121 int64_t data_count;
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122 /* feed input */
123 int feed_fd;
124 /* input format handling */
125 AVFormatContext *fmt_in;
c3f58185 126 int64_t start_time; /* In milliseconds - this wraps fairly often */
0c1a9eda 127 int64_t first_pts; /* initial pts value */
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128 int64_t cur_pts; /* current pts value from the stream in us */
129 int64_t cur_frame_duration; /* duration of the current frame in us */
130 int cur_frame_bytes; /* output frame size, needed to compute
131 the time at which we send each
132 packet */
133 int pts_stream_index; /* stream we choose as clock reference */
134 int64_t cur_clock; /* current clock reference value in us */
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135 /* output format handling */
136 struct FFStream *stream;
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137 /* -1 is invalid stream */
138 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
139 int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */
140 int switch_pending;
2effd274 141 AVFormatContext fmt_ctx; /* instance of FFStream for one user */
85f07f22 142 int last_packet_sent; /* true if last data packet was sent */
7434ba6d 143 int suppress_log;
5eb765ef 144 DataRateData datarate;
3120d2a2 145 int wmp_client_id;
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146 char protocol[16];
147 char method[16];
148 char url[128];
cde25790 149 int buffer_size;
0c1a9eda 150 uint8_t *buffer;
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151 int is_packetized; /* if true, the stream is packetized */
152 int packet_stream_index; /* current stream for output in state machine */
115329f1 153
2effd274 154 /* RTSP state specific */
0c1a9eda 155 uint8_t *pb_buffer; /* XXX: use that in all the code */
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156 ByteIOContext *pb;
157 int seq; /* RTSP sequence number */
115329f1 158
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159 /* RTP state specific */
160 enum RTSPProtocol rtp_protocol;
161 char session_id[32]; /* session id */
162 AVFormatContext *rtp_ctx[MAX_STREAMS];
e240a0bb 163
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164 /* RTP/UDP specific */
165 URLContext *rtp_handles[MAX_STREAMS];
166
167 /* RTP/TCP specific */
168 struct HTTPContext *rtsp_c;
169 uint8_t *packet_buffer, *packet_buffer_ptr, *packet_buffer_end;
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170} HTTPContext;
171
172/* each generated stream is described here */
173enum StreamType {
174 STREAM_TYPE_LIVE,
175 STREAM_TYPE_STATUS,
cde25790 176 STREAM_TYPE_REDIRECT,
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177};
178
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179enum IPAddressAction {
180 IP_ALLOW = 1,
181 IP_DENY,
182};
183
184typedef struct IPAddressACL {
185 struct IPAddressACL *next;
186 enum IPAddressAction action;
efa04ce2 187 /* These are in host order */
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188 struct in_addr first;
189 struct in_addr last;
190} IPAddressACL;
191
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192/* description of each stream of the ffserver.conf file */
193typedef struct FFStream {
194 enum StreamType stream_type;
195 char filename[1024]; /* stream filename */
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196 struct FFStream *feed; /* feed we are using (can be null if
197 coming from file) */
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198 AVFormatParameters *ap_in; /* input parameters */
199 AVInputFormat *ifmt; /* if non NULL, force input format */
bd7cf6ad 200 AVOutputFormat *fmt;
8256c0a3 201 IPAddressACL *acl;
85f07f22 202 int nb_streams;
42a63c6a 203 int prebuffer; /* Number of millseconds early to start */
c3f58185 204 int64_t max_time; /* Number of milliseconds to run */
79c4ea3c 205 int send_on_key;
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206 AVStream *streams[MAX_STREAMS];
207 int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
208 char feed_filename[1024]; /* file name of the feed storage, or
209 input file name for a stream */
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210 char author[512];
211 char title[512];
212 char copyright[512];
213 char comment[512];
cde25790 214 pid_t pid; /* Of ffmpeg process */
5eb765ef 215 time_t pid_start; /* Of ffmpeg process */
cde25790 216 char **child_argv;
85f07f22 217 struct FFStream *next;
6edd6884 218 int bandwidth; /* bandwidth, in kbits/s */
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219 /* RTSP options */
220 char *rtsp_option;
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221 /* multicast specific */
222 int is_multicast;
223 struct in_addr multicast_ip;
224 int multicast_port; /* first port used for multicast */
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225 int multicast_ttl;
226 int loop; /* if true, send the stream in loops (only meaningful if file) */
829ac53d 227
85f07f22 228 /* feed specific */
2effd274 229 int feed_opened; /* true if someone is writing to the feed */
85f07f22 230 int is_feed; /* true if it is a feed */
e322ea48 231 int readonly; /* True if writing is prohibited to the file */
a6e14edd 232 int conns_served;
0c1a9eda 233 int64_t bytes_served;
6b0bdc75 234 int64_t feed_max_size; /* maximum storage size, zero means unlimited */
8bfb108b 235 int64_t feed_write_index; /* current write position in feed (it wraps around) */
0c1a9eda 236 int64_t feed_size; /* current size of feed */
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237 struct FFStream *next_feed;
238} FFStream;
239
240typedef struct FeedData {
241 long long data_count;
8bfb108b 242 float avg_frame_size; /* frame size averaged over last frames with exponential mean */
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243} FeedData;
244
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245static struct sockaddr_in my_http_addr;
246static struct sockaddr_in my_rtsp_addr;
2effd274 247
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248static char logfilename[1024];
249static HTTPContext *first_http_ctx;
250static FFStream *first_feed; /* contains only feeds */
251static FFStream *first_stream; /* contains all streams, including feeds */
85f07f22 252
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253static void new_connection(int server_fd, int is_rtsp);
254static void close_connection(HTTPContext *c);
255
256/* HTTP handling */
257static int handle_connection(HTTPContext *c);
85f07f22 258static int http_parse_request(HTTPContext *c);
5eb765ef 259static int http_send_data(HTTPContext *c);
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260static void compute_stats(HTTPContext *c);
261static int open_input_stream(HTTPContext *c, const char *info);
262static int http_start_receive_data(HTTPContext *c);
263static int http_receive_data(HTTPContext *c);
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264
265/* RTSP handling */
266static int rtsp_parse_request(HTTPContext *c);
267static void rtsp_cmd_describe(HTTPContext *c, const char *url);
0df65975 268static void rtsp_cmd_options(HTTPContext *c, const char *url);
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269static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPHeader *h);
270static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h);
271static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h);
272static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h);
273
829ac53d 274/* SDP handling */
115329f1 275static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
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276 struct in_addr my_ip);
277
2effd274 278/* RTP handling */
115329f1 279static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
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280 FFStream *stream, const char *session_id,
281 enum RTSPProtocol rtp_protocol);
115329f1 282static int rtp_new_av_stream(HTTPContext *c,
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283 int stream_index, struct sockaddr_in *dest_addr,
284 HTTPContext *rtsp_c);
85f07f22 285
cde25790 286static const char *my_program_name;
d6562d2c 287static const char *my_program_dir;
cde25790 288
5a635bc7 289static const char *config_filename;
2ac887ba 290static int ffserver_debug;
2effd274 291static int ffserver_daemon;
2ac887ba 292static int no_launch;
5eb765ef 293static int need_to_start_children;
2ac887ba 294
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295static int nb_max_connections;
296static int nb_connections;
85f07f22 297
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298static int max_bandwidth;
299static int current_bandwidth;
42a63c6a 300
c3f58185 301static int64_t cur_time; // Making this global saves on passing it around everywhere
5eb765ef 302
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303static AVRandomState random_state;
304
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305static FILE *logfile = NULL;
306
115329f1 307static void __attribute__ ((format (printf, 1, 2))) http_log(const char *fmt, ...)
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308{
309 va_list ap;
310 va_start(ap, fmt);
115329f1 311
7434ba6d 312 if (logfile) {
85f07f22 313 vfprintf(logfile, fmt, ap);
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314 fflush(logfile);
315 }
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316 va_end(ap);
317}
318
6edd6884 319static char *ctime1(char *buf2)
7434ba6d 320{
7434ba6d 321 time_t ti;
6edd6884 322 char *p;
7434ba6d 323
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324 ti = time(NULL);
325 p = ctime(&ti);
326 strcpy(buf2, p);
327 p = buf2 + strlen(p) - 1;
328 if (*p == '\n')
329 *p = '\0';
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330 return buf2;
331}
332
333static void log_connection(HTTPContext *c)
334{
335 char buf2[32];
336
115329f1 337 if (c->suppress_log)
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338 return;
339
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DB
340 http_log("%s - - [%s] \"%s %s %s\" %d %"PRId64"\n",
341 inet_ntoa(c->from_addr.sin_addr),
342 ctime1(buf2), c->method, c->url,
6edd6884 343 c->protocol, (c->http_error ? c->http_error : 200), c->data_count);
cde25790
PG
344}
345
0c1a9eda 346static void update_datarate(DataRateData *drd, int64_t count)
5eb765ef
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347{
348 if (!drd->time1 && !drd->count1) {
349 drd->time1 = drd->time2 = cur_time;
350 drd->count1 = drd->count2 = count;
eeffbdea 351 } else if (cur_time - drd->time2 > 5000) {
33a4ecbe
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352 drd->time1 = drd->time2;
353 drd->count1 = drd->count2;
354 drd->time2 = cur_time;
355 drd->count2 = count;
5eb765ef
PG
356 }
357}
358
359/* In bytes per second */
0c1a9eda 360static int compute_datarate(DataRateData *drd, int64_t count)
5eb765ef
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361{
362 if (cur_time == drd->time1)
363 return 0;
115329f1 364
5eb765ef
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365 return ((count - drd->count1) * 1000) / (cur_time - drd->time1);
366}
367
a782f209 368
cde25790
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369static void start_children(FFStream *feed)
370{
2ac887ba
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371 if (no_launch)
372 return;
373
cde25790 374 for (; feed; feed = feed->next) {
5eb765ef
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375 if (feed->child_argv && !feed->pid) {
376 feed->pid_start = time(0);
377
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378 feed->pid = fork();
379
380 if (feed->pid < 0) {
381 fprintf(stderr, "Unable to create children\n");
382 exit(1);
383 }
384 if (!feed->pid) {
385 /* In child */
386 char pathname[1024];
387 char *slash;
388 int i;
389
611c5741 390 for (i = 3; i < 256; i++)
5eb765ef 391 close(i);
cde25790 392
5eb765ef 393 if (!ffserver_debug) {
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394 i = open("/dev/null", O_RDWR);
395 if (i)
396 dup2(i, 0);
397 dup2(i, 1);
398 dup2(i, 2);
5eb765ef
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399 if (i)
400 close(i);
2ac887ba 401 }
cde25790 402
f7d78f36 403 av_strlcpy(pathname, my_program_name, sizeof(pathname));
cde25790
PG
404
405 slash = strrchr(pathname, '/');
611c5741 406 if (!slash)
cde25790 407 slash = pathname;
611c5741 408 else
cde25790 409 slash++;
cde25790
PG
410 strcpy(slash, "ffmpeg");
411
d6562d2c
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412 /* This is needed to make relative pathnames work */
413 chdir(my_program_dir);
414
a4d70941
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415 signal(SIGPIPE, SIG_DFL);
416
cde25790
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417 execvp(pathname, feed->child_argv);
418
419 _exit(1);
420 }
421 }
422 }
7434ba6d
PG
423}
424
2effd274
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425/* open a listening socket */
426static int socket_open_listen(struct sockaddr_in *my_addr)
85f07f22 427{
2effd274 428 int server_fd, tmp;
85f07f22
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429
430 server_fd = socket(AF_INET,SOCK_STREAM,0);
431 if (server_fd < 0) {
432 perror ("socket");
433 return -1;
434 }
115329f1 435
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436 tmp = 1;
437 setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
438
2effd274 439 if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
b17d099d
PG
440 char bindmsg[32];
441 snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
442 perror (bindmsg);
d96633bb 443 closesocket(server_fd);
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444 return -1;
445 }
115329f1 446
85f07f22
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447 if (listen (server_fd, 5) < 0) {
448 perror ("listen");
d96633bb 449 closesocket(server_fd);
85f07f22
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450 return -1;
451 }
ba472aaf 452 ff_socket_nonblock(server_fd, 1);
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453
454 return server_fd;
455}
456
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457/* start all multicast streams */
458static void start_multicast(void)
459{
460 FFStream *stream;
461 char session_id[32];
462 HTTPContext *rtp_c;
463 struct sockaddr_in dest_addr;
464 int default_port, stream_index;
465
466 default_port = 6000;
467 for(stream = first_stream; stream != NULL; stream = stream->next) {
468 if (stream->is_multicast) {
469 /* open the RTP connection */
1df93ae9
AB
470 snprintf(session_id, sizeof(session_id), "%08x%08x",
471 av_random(&random_state), av_random(&random_state));
6edd6884
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472
473 /* choose a port if none given */
474 if (stream->multicast_port == 0) {
475 stream->multicast_port = default_port;
476 default_port += 100;
477 }
478
479 dest_addr.sin_family = AF_INET;
480 dest_addr.sin_addr = stream->multicast_ip;
481 dest_addr.sin_port = htons(stream->multicast_port);
482
115329f1 483 rtp_c = rtp_new_connection(&dest_addr, stream, session_id,
bc351386 484 RTSP_PROTOCOL_RTP_UDP_MULTICAST);
611c5741 485 if (!rtp_c)
6edd6884 486 continue;
611c5741 487
6edd6884 488 if (open_input_stream(rtp_c, "") < 0) {
115329f1 489 fprintf(stderr, "Could not open input stream for stream '%s'\n",
6edd6884
FB
490 stream->filename);
491 continue;
492 }
493
6edd6884 494 /* open each RTP stream */
115329f1 495 for(stream_index = 0; stream_index < stream->nb_streams;
6edd6884 496 stream_index++) {
115329f1 497 dest_addr.sin_port = htons(stream->multicast_port +
6edd6884 498 2 * stream_index);
bc351386 499 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, NULL) < 0) {
115329f1 500 fprintf(stderr, "Could not open output stream '%s/streamid=%d'\n",
0fa45e19
FB
501 stream->filename, stream_index);
502 exit(1);
6edd6884
FB
503 }
504 }
505
506 /* change state to send data */
507 rtp_c->state = HTTPSTATE_SEND_DATA;
508 }
509 }
510}
2effd274
FB
511
512/* main loop of the http server */
513static int http_server(void)
514{
515 int server_fd, ret, rtsp_server_fd, delay, delay1;
516 struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 2], *poll_entry;
517 HTTPContext *c, *c_next;
518
519 server_fd = socket_open_listen(&my_http_addr);
520 if (server_fd < 0)
521 return -1;
85f07f22 522
2effd274
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523 rtsp_server_fd = socket_open_listen(&my_rtsp_addr);
524 if (rtsp_server_fd < 0)
525 return -1;
115329f1 526
85f07f22
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527 http_log("ffserver started.\n");
528
cde25790
PG
529 start_children(first_feed);
530
85f07f22
FB
531 first_http_ctx = NULL;
532 nb_connections = 0;
6edd6884
FB
533
534 start_multicast();
535
85f07f22
FB
536 for(;;) {
537 poll_entry = poll_table;
538 poll_entry->fd = server_fd;
539 poll_entry->events = POLLIN;
540 poll_entry++;
541
2effd274
FB
542 poll_entry->fd = rtsp_server_fd;
543 poll_entry->events = POLLIN;
544 poll_entry++;
545
85f07f22
FB
546 /* wait for events on each HTTP handle */
547 c = first_http_ctx;
2effd274 548 delay = 1000;
85f07f22
FB
549 while (c != NULL) {
550 int fd;
551 fd = c->fd;
552 switch(c->state) {
2effd274
FB
553 case HTTPSTATE_SEND_HEADER:
554 case RTSPSTATE_SEND_REPLY:
bc351386 555 case RTSPSTATE_SEND_PACKET:
85f07f22
FB
556 c->poll_entry = poll_entry;
557 poll_entry->fd = fd;
2effd274 558 poll_entry->events = POLLOUT;
85f07f22
FB
559 poll_entry++;
560 break;
85f07f22
FB
561 case HTTPSTATE_SEND_DATA_HEADER:
562 case HTTPSTATE_SEND_DATA:
563 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
564 if (!c->is_packetized) {
565 /* for TCP, we output as much as we can (may need to put a limit) */
566 c->poll_entry = poll_entry;
567 poll_entry->fd = fd;
568 poll_entry->events = POLLOUT;
569 poll_entry++;
570 } else {
e240a0bb
FB
571 /* when ffserver is doing the timing, we work by
572 looking at which packet need to be sent every
573 10 ms */
574 delay1 = 10; /* one tick wait XXX: 10 ms assumed */
575 if (delay1 < delay)
576 delay = delay1;
2effd274 577 }
85f07f22 578 break;
2effd274 579 case HTTPSTATE_WAIT_REQUEST:
85f07f22 580 case HTTPSTATE_RECEIVE_DATA:
85f07f22 581 case HTTPSTATE_WAIT_FEED:
2effd274 582 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
583 /* need to catch errors */
584 c->poll_entry = poll_entry;
585 poll_entry->fd = fd;
a6e14edd 586 poll_entry->events = POLLIN;/* Maybe this will work */
85f07f22
FB
587 poll_entry++;
588 break;
589 default:
590 c->poll_entry = NULL;
591 break;
592 }
593 c = c->next;
594 }
595
596 /* wait for an event on one connection. We poll at least every
597 second to handle timeouts */
598 do {
2effd274 599 ret = poll(poll_table, poll_entry - poll_table, delay);
8da4034f
AB
600 if (ret < 0 && ff_neterrno() != FF_NETERROR(EAGAIN) &&
601 ff_neterrno() != FF_NETERROR(EINTR))
53e2f9ca 602 return -1;
e8d658df 603 } while (ret < 0);
115329f1 604
c3f58185 605 cur_time = av_gettime() / 1000;
85f07f22 606
5eb765ef
PG
607 if (need_to_start_children) {
608 need_to_start_children = 0;
609 start_children(first_feed);
610 }
611
85f07f22 612 /* now handle the events */
2effd274
FB
613 for(c = first_http_ctx; c != NULL; c = c_next) {
614 c_next = c->next;
615 if (handle_connection(c) < 0) {
85f07f22 616 /* close and free the connection */
7434ba6d 617 log_connection(c);
2effd274 618 close_connection(c);
85f07f22
FB
619 }
620 }
621
85f07f22 622 poll_entry = poll_table;
2effd274 623 /* new HTTP connection request ? */
611c5741 624 if (poll_entry->revents & POLLIN)
2effd274 625 new_connection(server_fd, 0);
85f07f22 626 poll_entry++;
2effd274 627 /* new RTSP connection request ? */
611c5741 628 if (poll_entry->revents & POLLIN)
2effd274 629 new_connection(rtsp_server_fd, 1);
85f07f22
FB
630 }
631}
632
2effd274
FB
633/* start waiting for a new HTTP/RTSP request */
634static void start_wait_request(HTTPContext *c, int is_rtsp)
85f07f22 635{
2effd274
FB
636 c->buffer_ptr = c->buffer;
637 c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
638
639 if (is_rtsp) {
640 c->timeout = cur_time + RTSP_REQUEST_TIMEOUT;
641 c->state = RTSPSTATE_WAIT_REQUEST;
642 } else {
643 c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
644 c->state = HTTPSTATE_WAIT_REQUEST;
645 }
646}
647
648static void new_connection(int server_fd, int is_rtsp)
649{
650 struct sockaddr_in from_addr;
651 int fd, len;
652 HTTPContext *c = NULL;
653
654 len = sizeof(from_addr);
115329f1 655 fd = accept(server_fd, (struct sockaddr *)&from_addr,
2effd274
FB
656 &len);
657 if (fd < 0)
658 return;
ba472aaf 659 ff_socket_nonblock(fd, 1);
2effd274
FB
660
661 /* XXX: should output a warning page when coming
662 close to the connection limit */
663 if (nb_connections >= nb_max_connections)
664 goto fail;
115329f1 665
2effd274
FB
666 /* add a new connection */
667 c = av_mallocz(sizeof(HTTPContext));
668 if (!c)
669 goto fail;
115329f1 670
2effd274
FB
671 c->fd = fd;
672 c->poll_entry = NULL;
673 c->from_addr = from_addr;
674 c->buffer_size = IOBUFFER_INIT_SIZE;
675 c->buffer = av_malloc(c->buffer_size);
676 if (!c->buffer)
677 goto fail;
8bc80f8b
PG
678
679 c->next = first_http_ctx;
680 first_http_ctx = c;
2effd274 681 nb_connections++;
115329f1 682
2effd274
FB
683 start_wait_request(c, is_rtsp);
684
685 return;
686
687 fail:
688 if (c) {
689 av_free(c->buffer);
690 av_free(c);
691 }
d96633bb 692 closesocket(fd);
2effd274
FB
693}
694
695static void close_connection(HTTPContext *c)
696{
697 HTTPContext **cp, *c1;
698 int i, nb_streams;
699 AVFormatContext *ctx;
700 URLContext *h;
701 AVStream *st;
702
703 /* remove connection from list */
704 cp = &first_http_ctx;
705 while ((*cp) != NULL) {
706 c1 = *cp;
611c5741 707 if (c1 == c)
2effd274 708 *cp = c->next;
611c5741 709 else
2effd274 710 cp = &c1->next;
2effd274
FB
711 }
712
bc351386
FB
713 /* remove references, if any (XXX: do it faster) */
714 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
715 if (c1->rtsp_c == c)
716 c1->rtsp_c = NULL;
717 }
718
2effd274
FB
719 /* remove connection associated resources */
720 if (c->fd >= 0)
d96633bb 721 closesocket(c->fd);
2effd274
FB
722 if (c->fmt_in) {
723 /* close each frame parser */
724 for(i=0;i<c->fmt_in->nb_streams;i++) {
725 st = c->fmt_in->streams[i];
611c5741 726 if (st->codec->codec)
01f4895c 727 avcodec_close(st->codec);
2effd274
FB
728 }
729 av_close_input_file(c->fmt_in);
730 }
731
732 /* free RTP output streams if any */
733 nb_streams = 0;
115329f1 734 if (c->stream)
2effd274 735 nb_streams = c->stream->nb_streams;
115329f1 736
2effd274
FB
737 for(i=0;i<nb_streams;i++) {
738 ctx = c->rtp_ctx[i];
739 if (ctx) {
740 av_write_trailer(ctx);
741 av_free(ctx);
742 }
743 h = c->rtp_handles[i];
611c5741 744 if (h)
2effd274 745 url_close(h);
2effd274 746 }
115329f1 747
b88ba823
MH
748 ctx = &c->fmt_ctx;
749
87638494 750 if (!c->last_packet_sent) {
87638494
PG
751 if (ctx->oformat) {
752 /* prepare header */
753 if (url_open_dyn_buf(&ctx->pb) >= 0) {
754 av_write_trailer(ctx);
899681cd 755 url_close_dyn_buf(ctx->pb, &c->pb_buffer);
87638494
PG
756 }
757 }
758 }
759
115329f1 760 for(i=0; i<ctx->nb_streams; i++)
0bd53967 761 av_free(ctx->streams[i]);
f0ef6240 762
edfdd798 763 if (c->stream && !c->post && c->stream->stream_type == STREAM_TYPE_LIVE)
6edd6884 764 current_bandwidth -= c->stream->bandwidth;
5400e092
AB
765
766 /* signal that there is no feed if we are the feeder socket */
767 if (c->state == HTTPSTATE_RECEIVE_DATA && c->stream) {
768 c->stream->feed_opened = 0;
769 close(c->feed_fd);
770 }
771
2effd274 772 av_freep(&c->pb_buffer);
bc351386 773 av_freep(&c->packet_buffer);
2effd274
FB
774 av_free(c->buffer);
775 av_free(c);
776 nb_connections--;
777}
778
779static int handle_connection(HTTPContext *c)
780{
781 int len, ret;
115329f1 782
85f07f22
FB
783 switch(c->state) {
784 case HTTPSTATE_WAIT_REQUEST:
2effd274 785 case RTSPSTATE_WAIT_REQUEST:
85f07f22
FB
786 /* timeout ? */
787 if ((c->timeout - cur_time) < 0)
788 return -1;
789 if (c->poll_entry->revents & (POLLERR | POLLHUP))
790 return -1;
791
792 /* no need to read if no events */
793 if (!(c->poll_entry->revents & POLLIN))
794 return 0;
795 /* read the data */
1bc1cfdd 796 read_loop:
c60202df 797 len = recv(c->fd, c->buffer_ptr, 1, 0);
85f07f22 798 if (len < 0) {
8da4034f
AB
799 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
800 ff_neterrno() != FF_NETERROR(EINTR))
85f07f22
FB
801 return -1;
802 } else if (len == 0) {
803 return -1;
804 } else {
94d9ad5f 805 /* search for end of request. */
0c1a9eda 806 uint8_t *ptr;
85f07f22
FB
807 c->buffer_ptr += len;
808 ptr = c->buffer_ptr;
809 if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) ||
810 (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) {
811 /* request found : parse it and reply */
2effd274
FB
812 if (c->state == HTTPSTATE_WAIT_REQUEST) {
813 ret = http_parse_request(c);
814 } else {
815 ret = rtsp_parse_request(c);
816 }
817 if (ret < 0)
85f07f22
FB
818 return -1;
819 } else if (ptr >= c->buffer_end) {
820 /* request too long: cannot do anything */
821 return -1;
1bc1cfdd 822 } else goto read_loop;
85f07f22
FB
823 }
824 break;
825
826 case HTTPSTATE_SEND_HEADER:
827 if (c->poll_entry->revents & (POLLERR | POLLHUP))
828 return -1;
829
2effd274 830 /* no need to write if no events */
85f07f22
FB
831 if (!(c->poll_entry->revents & POLLOUT))
832 return 0;
c60202df 833 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
85f07f22 834 if (len < 0) {
8da4034f
AB
835 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
836 ff_neterrno() != FF_NETERROR(EINTR)) {
85f07f22 837 /* error : close connection */
2effd274 838 av_freep(&c->pb_buffer);
85f07f22
FB
839 return -1;
840 }
841 } else {
842 c->buffer_ptr += len;
2e04edb3
PG
843 if (c->stream)
844 c->stream->bytes_served += len;
a6e14edd 845 c->data_count += len;
85f07f22 846 if (c->buffer_ptr >= c->buffer_end) {
2effd274 847 av_freep(&c->pb_buffer);
85f07f22 848 /* if error, exit */
611c5741 849 if (c->http_error)
85f07f22 850 return -1;
2effd274 851 /* all the buffer was sent : synchronize to the incoming stream */
85f07f22
FB
852 c->state = HTTPSTATE_SEND_DATA_HEADER;
853 c->buffer_ptr = c->buffer_end = c->buffer;
854 }
855 }
856 break;
857
858 case HTTPSTATE_SEND_DATA:
859 case HTTPSTATE_SEND_DATA_HEADER:
860 case HTTPSTATE_SEND_DATA_TRAILER:
2effd274
FB
861 /* for packetized output, we consider we can always write (the
862 input streams sets the speed). It may be better to verify
863 that we do not rely too much on the kernel queues */
864 if (!c->is_packetized) {
865 if (c->poll_entry->revents & (POLLERR | POLLHUP))
866 return -1;
115329f1 867
2effd274
FB
868 /* no need to read if no events */
869 if (!(c->poll_entry->revents & POLLOUT))
870 return 0;
871 }
5eb765ef 872 if (http_send_data(c) < 0)
85f07f22 873 return -1;
638831aa
AB
874 /* close connection if trailer sent */
875 if (c->state == HTTPSTATE_SEND_DATA_TRAILER)
876 return -1;
85f07f22
FB
877 break;
878 case HTTPSTATE_RECEIVE_DATA:
879 /* no need to read if no events */
880 if (c->poll_entry->revents & (POLLERR | POLLHUP))
881 return -1;
882 if (!(c->poll_entry->revents & POLLIN))
883 return 0;
884 if (http_receive_data(c) < 0)
885 return -1;
886 break;
887 case HTTPSTATE_WAIT_FEED:
888 /* no need to read if no events */
a6e14edd 889 if (c->poll_entry->revents & (POLLIN | POLLERR | POLLHUP))
85f07f22
FB
890 return -1;
891
892 /* nothing to do, we'll be waken up by incoming feed packets */
893 break;
2effd274 894
2effd274
FB
895 case RTSPSTATE_SEND_REPLY:
896 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
897 av_freep(&c->pb_buffer);
898 return -1;
899 }
900 /* no need to write if no events */
901 if (!(c->poll_entry->revents & POLLOUT))
902 return 0;
c60202df 903 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
2effd274 904 if (len < 0) {
8da4034f
AB
905 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
906 ff_neterrno() != FF_NETERROR(EINTR)) {
2effd274
FB
907 /* error : close connection */
908 av_freep(&c->pb_buffer);
909 return -1;
910 }
911 } else {
912 c->buffer_ptr += len;
913 c->data_count += len;
914 if (c->buffer_ptr >= c->buffer_end) {
915 /* all the buffer was sent : wait for a new request */
916 av_freep(&c->pb_buffer);
917 start_wait_request(c, 1);
918 }
919 }
920 break;
bc351386
FB
921 case RTSPSTATE_SEND_PACKET:
922 if (c->poll_entry->revents & (POLLERR | POLLHUP)) {
923 av_freep(&c->packet_buffer);
924 return -1;
925 }
926 /* no need to write if no events */
927 if (!(c->poll_entry->revents & POLLOUT))
928 return 0;
c60202df
AB
929 len = send(c->fd, c->packet_buffer_ptr,
930 c->packet_buffer_end - c->packet_buffer_ptr, 0);
bc351386 931 if (len < 0) {
8da4034f
AB
932 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
933 ff_neterrno() != FF_NETERROR(EINTR)) {
bc351386
FB
934 /* error : close connection */
935 av_freep(&c->packet_buffer);
936 return -1;
937 }
938 } else {
939 c->packet_buffer_ptr += len;
940 if (c->packet_buffer_ptr >= c->packet_buffer_end) {
941 /* all the buffer was sent : wait for a new request */
942 av_freep(&c->packet_buffer);
943 c->state = RTSPSTATE_WAIT_REQUEST;
944 }
945 }
946 break;
2effd274
FB
947 case HTTPSTATE_READY:
948 /* nothing to do */
949 break;
85f07f22
FB
950 default:
951 return -1;
952 }
953 return 0;
954}
955
3120d2a2
PG
956static int extract_rates(char *rates, int ratelen, const char *request)
957{
958 const char *p;
959
960 for (p = request; *p && *p != '\r' && *p != '\n'; ) {
961 if (strncasecmp(p, "Pragma:", 7) == 0) {
962 const char *q = p + 7;
963
964 while (*q && *q != '\n' && isspace(*q))
965 q++;
966
967 if (strncasecmp(q, "stream-switch-entry=", 20) == 0) {
968 int stream_no;
969 int rate_no;
970
971 q += 20;
972
cde25790 973 memset(rates, 0xff, ratelen);
3120d2a2
PG
974
975 while (1) {
976 while (*q && *q != '\n' && *q != ':')
977 q++;
978
611c5741 979 if (sscanf(q, ":%d:%d", &stream_no, &rate_no) != 2)
3120d2a2 980 break;
611c5741 981
3120d2a2 982 stream_no--;
611c5741 983 if (stream_no < ratelen && stream_no >= 0)
3120d2a2 984 rates[stream_no] = rate_no;
3120d2a2
PG
985
986 while (*q && *q != '\n' && !isspace(*q))
987 q++;
988 }
989
990 return 1;
991 }
992 }
993 p = strchr(p, '\n');
994 if (!p)
995 break;
996
997 p++;
998 }
999
1000 return 0;
1001}
1002
cde25790 1003static int find_stream_in_feed(FFStream *feed, AVCodecContext *codec, int bit_rate)
3120d2a2
PG
1004{
1005 int i;
cde25790
PG
1006 int best_bitrate = 100000000;
1007 int best = -1;
1008
1009 for (i = 0; i < feed->nb_streams; i++) {
01f4895c 1010 AVCodecContext *feed_codec = feed->streams[i]->codec;
cde25790
PG
1011
1012 if (feed_codec->codec_id != codec->codec_id ||
1013 feed_codec->sample_rate != codec->sample_rate ||
1014 feed_codec->width != codec->width ||
611c5741 1015 feed_codec->height != codec->height)
cde25790 1016 continue;
cde25790
PG
1017
1018 /* Potential stream */
1019
115329f1 1020 /* We want the fastest stream less than bit_rate, or the slowest
cde25790
PG
1021 * faster than bit_rate
1022 */
1023
1024 if (feed_codec->bit_rate <= bit_rate) {
1025 if (best_bitrate > bit_rate || feed_codec->bit_rate > best_bitrate) {
1026 best_bitrate = feed_codec->bit_rate;
1027 best = i;
1028 }
1029 } else {
1030 if (feed_codec->bit_rate < best_bitrate) {
1031 best_bitrate = feed_codec->bit_rate;
1032 best = i;
1033 }
1034 }
1035 }
1036
1037 return best;
1038}
1039
1040static int modify_current_stream(HTTPContext *c, char *rates)
1041{
1042 int i;
1043 FFStream *req = c->stream;
1044 int action_required = 0;
3120d2a2 1045
001bcd29
PG
1046 /* Not much we can do for a feed */
1047 if (!req->feed)
1048 return 0;
1049
3120d2a2 1050 for (i = 0; i < req->nb_streams; i++) {
01f4895c 1051 AVCodecContext *codec = req->streams[i]->codec;
3120d2a2 1052
3120d2a2
PG
1053 switch(rates[i]) {
1054 case 0:
cde25790 1055 c->switch_feed_streams[i] = req->feed_streams[i];
3120d2a2
PG
1056 break;
1057 case 1:
cde25790 1058 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 2);
3120d2a2
PG
1059 break;
1060 case 2:
cde25790
PG
1061 /* Wants off or slow */
1062 c->switch_feed_streams[i] = find_stream_in_feed(req->feed, codec, codec->bit_rate / 4);
1063#ifdef WANTS_OFF
1064 /* This doesn't work well when it turns off the only stream! */
1065 c->switch_feed_streams[i] = -2;
1066 c->feed_streams[i] = -2;
1067#endif
3120d2a2
PG
1068 break;
1069 }
3120d2a2 1070
cde25790
PG
1071 if (c->switch_feed_streams[i] >= 0 && c->switch_feed_streams[i] != c->feed_streams[i])
1072 action_required = 1;
1073 }
3120d2a2 1074
cde25790
PG
1075 return action_required;
1076}
3120d2a2 1077
3120d2a2 1078
cde25790
PG
1079static void do_switch_stream(HTTPContext *c, int i)
1080{
1081 if (c->switch_feed_streams[i] >= 0) {
115329f1 1082#ifdef PHILIP
cde25790
PG
1083 c->feed_streams[i] = c->switch_feed_streams[i];
1084#endif
3120d2a2 1085
cde25790 1086 /* Now update the stream */
3120d2a2 1087 }
cde25790 1088 c->switch_feed_streams[i] = -1;
3120d2a2 1089}
7434ba6d 1090
2effd274
FB
1091/* XXX: factorize in utils.c ? */
1092/* XXX: take care with different space meaning */
1093static void skip_spaces(const char **pp)
1094{
1095 const char *p;
1096 p = *pp;
1097 while (*p == ' ' || *p == '\t')
1098 p++;
1099 *pp = p;
1100}
1101
1102static void get_word(char *buf, int buf_size, const char **pp)
1103{
1104 const char *p;
1105 char *q;
1106
1107 p = *pp;
1108 skip_spaces(&p);
1109 q = buf;
1110 while (!isspace(*p) && *p != '\0') {
1111 if ((q - buf) < buf_size - 1)
1112 *q++ = *p;
1113 p++;
1114 }
1115 if (buf_size > 0)
1116 *q = '\0';
1117 *pp = p;
1118}
1119
8256c0a3
PG
1120static int validate_acl(FFStream *stream, HTTPContext *c)
1121{
1122 enum IPAddressAction last_action = IP_DENY;
1123 IPAddressACL *acl;
1124 struct in_addr *src = &c->from_addr.sin_addr;
2bd8416e 1125 unsigned long src_addr = src->s_addr;
8256c0a3
PG
1126
1127 for (acl = stream->acl; acl; acl = acl->next) {
611c5741 1128 if (src_addr >= acl->first.s_addr && src_addr <= acl->last.s_addr)
8256c0a3 1129 return (acl->action == IP_ALLOW) ? 1 : 0;
8256c0a3
PG
1130 last_action = acl->action;
1131 }
1132
1133 /* Nothing matched, so return not the last action */
1134 return (last_action == IP_DENY) ? 1 : 0;
1135}
1136
829ac53d
FB
1137/* compute the real filename of a file by matching it without its
1138 extensions to all the stream filenames */
1139static void compute_real_filename(char *filename, int max_size)
1140{
1141 char file1[1024];
1142 char file2[1024];
1143 char *p;
1144 FFStream *stream;
1145
1146 /* compute filename by matching without the file extensions */
f7d78f36 1147 av_strlcpy(file1, filename, sizeof(file1));
829ac53d
FB
1148 p = strrchr(file1, '.');
1149 if (p)
1150 *p = '\0';
1151 for(stream = first_stream; stream != NULL; stream = stream->next) {
f7d78f36 1152 av_strlcpy(file2, stream->filename, sizeof(file2));
829ac53d
FB
1153 p = strrchr(file2, '.');
1154 if (p)
1155 *p = '\0';
1156 if (!strcmp(file1, file2)) {
f7d78f36 1157 av_strlcpy(filename, stream->filename, max_size);
829ac53d
FB
1158 break;
1159 }
1160 }
1161}
1162
1163enum RedirType {
1164 REDIR_NONE,
1165 REDIR_ASX,
1166 REDIR_RAM,
1167 REDIR_ASF,
1168 REDIR_RTSP,
1169 REDIR_SDP,
1170};
1171
85f07f22
FB
1172/* parse http request and prepare header */
1173static int http_parse_request(HTTPContext *c)
1174{
1175 char *p;
829ac53d 1176 enum RedirType redir_type;
85f07f22 1177 char cmd[32];
bae79c04 1178 char info[1024], filename[1024];
85f07f22
FB
1179 char url[1024], *q;
1180 char protocol[32];
1181 char msg[1024];
1182 const char *mime_type;
1183 FFStream *stream;
42a63c6a 1184 int i;
3120d2a2 1185 char ratebuf[32];
cde25790 1186 char *useragent = 0;
85f07f22
FB
1187
1188 p = c->buffer;
2effd274 1189 get_word(cmd, sizeof(cmd), (const char **)&p);
f7d78f36 1190 av_strlcpy(c->method, cmd, sizeof(c->method));
7434ba6d 1191
85f07f22 1192 if (!strcmp(cmd, "GET"))
edfdd798 1193 c->post = 0;
85f07f22 1194 else if (!strcmp(cmd, "POST"))
edfdd798 1195 c->post = 1;
85f07f22
FB
1196 else
1197 return -1;
1198
2effd274 1199 get_word(url, sizeof(url), (const char **)&p);
f7d78f36 1200 av_strlcpy(c->url, url, sizeof(c->url));
7434ba6d 1201
2effd274 1202 get_word(protocol, sizeof(protocol), (const char **)&p);
85f07f22
FB
1203 if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
1204 return -1;
7434ba6d 1205
f7d78f36 1206 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
90f9c440
AB
1207
1208 if (ffserver_debug)
bb270c08 1209 http_log("New connection: %s %s\n", cmd, url);
115329f1 1210
85f07f22 1211 /* find the filename and the optional info string in the request */
bae79c04 1212 p = strchr(url, '?');
85f07f22 1213 if (p) {
f7d78f36 1214 av_strlcpy(info, p, sizeof(info));
85f07f22 1215 *p = '\0';
611c5741 1216 } else
85f07f22 1217 info[0] = '\0';
85f07f22 1218
f7d78f36 1219 av_strlcpy(filename, url + ((*url == '/') ? 1 : 0), sizeof(filename)-1);
bae79c04 1220
cde25790
PG
1221 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1222 if (strncasecmp(p, "User-Agent:", 11) == 0) {
1223 useragent = p + 11;
1224 if (*useragent && *useragent != '\n' && isspace(*useragent))
1225 useragent++;
1226 break;
1227 }
1228 p = strchr(p, '\n');
1229 if (!p)
1230 break;
1231
1232 p++;
1233 }
1234
829ac53d
FB
1235 redir_type = REDIR_NONE;
1236 if (match_ext(filename, "asx")) {
1237 redir_type = REDIR_ASX;
7434ba6d 1238 filename[strlen(filename)-1] = 'f';
c2ce254c 1239 } else if (match_ext(filename, "asf") &&
cde25790
PG
1240 (!useragent || strncasecmp(useragent, "NSPlayer", 8) != 0)) {
1241 /* if this isn't WMP or lookalike, return the redirector file */
829ac53d
FB
1242 redir_type = REDIR_ASF;
1243 } else if (match_ext(filename, "rpm,ram")) {
1244 redir_type = REDIR_RAM;
42a63c6a 1245 strcpy(filename + strlen(filename)-2, "m");
829ac53d
FB
1246 } else if (match_ext(filename, "rtsp")) {
1247 redir_type = REDIR_RTSP;
bae79c04 1248 compute_real_filename(filename, sizeof(filename) - 1);
829ac53d
FB
1249 } else if (match_ext(filename, "sdp")) {
1250 redir_type = REDIR_SDP;
bae79c04 1251 compute_real_filename(filename, sizeof(filename) - 1);
42a63c6a 1252 }
115329f1 1253
bae79c04
AB
1254 // "redirect" / request to index.html
1255 if (!strlen(filename))
f7d78f36 1256 av_strlcpy(filename, "index.html", sizeof(filename) - 1);
bae79c04 1257
85f07f22
FB
1258 stream = first_stream;
1259 while (stream != NULL) {
8256c0a3 1260 if (!strcmp(stream->filename, filename) && validate_acl(stream, c))
85f07f22
FB
1261 break;
1262 stream = stream->next;
1263 }
1264 if (stream == NULL) {
d445a7e9 1265 snprintf(msg, sizeof(msg), "File '%s' not found", url);
85f07f22
FB
1266 goto send_error;
1267 }
42a63c6a 1268
cde25790
PG
1269 c->stream = stream;
1270 memcpy(c->feed_streams, stream->feed_streams, sizeof(c->feed_streams));
1271 memset(c->switch_feed_streams, -1, sizeof(c->switch_feed_streams));
1272
1273 if (stream->stream_type == STREAM_TYPE_REDIRECT) {
1274 c->http_error = 301;
1275 q = c->buffer;
d445a7e9
PG
1276 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 301 Moved\r\n");
1277 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Location: %s\r\n", stream->feed_filename);
1278 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: text/html\r\n");
1279 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1280 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<html><head><title>Moved</title></head><body>\r\n");
1281 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "You should be <a href=\"%s\">redirected</a>.\r\n", stream->feed_filename);
1282 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</body></html>\r\n");
cde25790
PG
1283
1284 /* prepare output buffer */
1285 c->buffer_ptr = c->buffer;
1286 c->buffer_end = q;
1287 c->state = HTTPSTATE_SEND_HEADER;
1288 return 0;
1289 }
1290
3120d2a2
PG
1291 /* If this is WMP, get the rate information */
1292 if (extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
cde25790
PG
1293 if (modify_current_stream(c, ratebuf)) {
1294 for (i = 0; i < sizeof(c->feed_streams) / sizeof(c->feed_streams[0]); i++) {
1295 if (c->switch_feed_streams[i] >= 0)
1296 do_switch_stream(c, i);
1297 }
1298 }
3120d2a2
PG
1299 }
1300
755bfeab 1301 /* If already streaming this feed, do not let start another feeder. */
d0a5513b
AB
1302 if (stream->feed_opened) {
1303 snprintf(msg, sizeof(msg), "This feed is already being received.");
1304 goto send_error;
1305 }
1306
611c5741 1307 if (c->post == 0 && stream->stream_type == STREAM_TYPE_LIVE)
6edd6884 1308 current_bandwidth += stream->bandwidth;
115329f1 1309
edfdd798 1310 if (c->post == 0 && max_bandwidth < current_bandwidth) {
42a63c6a
PG
1311 c->http_error = 200;
1312 q = c->buffer;
d445a7e9
PG
1313 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 Server too busy\r\n");
1314 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: text/html\r\n");
1315 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1316 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<html><head><title>Too busy</title></head><body>\r\n");
33f5e2ec
AB
1317 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<p>The server is too busy to serve your request at this time.</p>\r\n");
1318 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<p>The bandwidth being served (including your stream) is %dkbit/sec, and this exceeds the limit of %dkbit/sec.</p>\r\n",
6edd6884 1319 current_bandwidth, max_bandwidth);
d445a7e9 1320 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</body></html>\r\n");
42a63c6a
PG
1321
1322 /* prepare output buffer */
1323 c->buffer_ptr = c->buffer;
1324 c->buffer_end = q;
1325 c->state = HTTPSTATE_SEND_HEADER;
1326 return 0;
1327 }
115329f1 1328
829ac53d 1329 if (redir_type != REDIR_NONE) {
7434ba6d 1330 char *hostinfo = 0;
115329f1 1331
7434ba6d
PG
1332 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1333 if (strncasecmp(p, "Host:", 5) == 0) {
1334 hostinfo = p + 5;
1335 break;
1336 }
1337 p = strchr(p, '\n');
1338 if (!p)
1339 break;
1340
1341 p++;
1342 }
1343
1344 if (hostinfo) {
1345 char *eoh;
1346 char hostbuf[260];
1347
1348 while (isspace(*hostinfo))
1349 hostinfo++;
1350
1351 eoh = strchr(hostinfo, '\n');
1352 if (eoh) {
1353 if (eoh[-1] == '\r')
1354 eoh--;
1355
1356 if (eoh - hostinfo < sizeof(hostbuf) - 1) {
1357 memcpy(hostbuf, hostinfo, eoh - hostinfo);
1358 hostbuf[eoh - hostinfo] = 0;
1359
1360 c->http_error = 200;
1361 q = c->buffer;
829ac53d
FB
1362 switch(redir_type) {
1363 case REDIR_ASX:
d445a7e9
PG
1364 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 ASX Follows\r\n");
1365 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: video/x-ms-asf\r\n");
1366 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1367 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<ASX Version=\"3\">\r\n");
7c054ea7 1368 //q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<!-- Autogenerated by ffserver -->\r\n");
115329f1 1369 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<ENTRY><REF HREF=\"http://%s/%s%s\"/></ENTRY>\r\n",
42a63c6a 1370 hostbuf, filename, info);
d445a7e9 1371 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</ASX>\r\n");
829ac53d
FB
1372 break;
1373 case REDIR_RAM:
d445a7e9
PG
1374 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 RAM Follows\r\n");
1375 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: audio/x-pn-realaudio\r\n");
1376 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1377 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "# Autogenerated by ffserver\r\n");
115329f1 1378 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "http://%s/%s%s\r\n",
42a63c6a 1379 hostbuf, filename, info);
829ac53d
FB
1380 break;
1381 case REDIR_ASF:
d445a7e9
PG
1382 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 ASF Redirect follows\r\n");
1383 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: video/x-ms-asf\r\n");
1384 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1385 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "[Reference]\r\n");
115329f1 1386 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Ref1=http://%s/%s%s\r\n",
cde25790 1387 hostbuf, filename, info);
829ac53d
FB
1388 break;
1389 case REDIR_RTSP:
1390 {
1391 char hostname[256], *p;
1392 /* extract only hostname */
f7d78f36 1393 av_strlcpy(hostname, hostbuf, sizeof(hostname));
829ac53d
FB
1394 p = strrchr(hostname, ':');
1395 if (p)
1396 *p = '\0';
d445a7e9 1397 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 RTSP Redirect follows\r\n");
829ac53d 1398 /* XXX: incorrect mime type ? */
d445a7e9
PG
1399 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: application/x-rtsp\r\n");
1400 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
115329f1
DB
1401 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "rtsp://%s:%d/%s\r\n",
1402 hostname, ntohs(my_rtsp_addr.sin_port),
829ac53d
FB
1403 filename);
1404 }
1405 break;
1406 case REDIR_SDP:
1407 {
0c1a9eda 1408 uint8_t *sdp_data;
829ac53d
FB
1409 int sdp_data_size, len;
1410 struct sockaddr_in my_addr;
1411
d445a7e9
PG
1412 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
1413 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: application/sdp\r\n");
1414 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
829ac53d
FB
1415
1416 len = sizeof(my_addr);
1417 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
115329f1 1418
829ac53d 1419 /* XXX: should use a dynamic buffer */
115329f1
DB
1420 sdp_data_size = prepare_sdp_description(stream,
1421 &sdp_data,
829ac53d
FB
1422 my_addr.sin_addr);
1423 if (sdp_data_size > 0) {
1424 memcpy(q, sdp_data, sdp_data_size);
1425 q += sdp_data_size;
1426 *q = '\0';
1427 av_free(sdp_data);
1428 }
1429 }
1430 break;
1431 default:
0f4e8165 1432 abort();
829ac53d 1433 break;
2effd274 1434 }
7434ba6d
PG
1435
1436 /* prepare output buffer */
1437 c->buffer_ptr = c->buffer;
1438 c->buffer_end = q;
1439 c->state = HTTPSTATE_SEND_HEADER;
1440 return 0;
1441 }
1442 }
1443 }
1444
d445a7e9 1445 snprintf(msg, sizeof(msg), "ASX/RAM file not handled");
7434ba6d 1446 goto send_error;
85f07f22
FB
1447 }
1448
a6e14edd 1449 stream->conns_served++;
7434ba6d 1450
85f07f22
FB
1451 /* XXX: add there authenticate and IP match */
1452
edfdd798 1453 if (c->post) {
85f07f22
FB
1454 /* if post, it means a feed is being sent */
1455 if (!stream->is_feed) {
7434ba6d
PG
1456 /* However it might be a status report from WMP! Lets log the data
1457 * as it might come in handy one day
1458 */
1459 char *logline = 0;
3120d2a2 1460 int client_id = 0;
115329f1 1461
7434ba6d
PG
1462 for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) {
1463 if (strncasecmp(p, "Pragma: log-line=", 17) == 0) {
1464 logline = p;
1465 break;
1466 }
611c5741 1467 if (strncasecmp(p, "Pragma: client-id=", 18) == 0)
3120d2a2 1468 client_id = strtol(p + 18, 0, 10);
7434ba6d
PG
1469 p = strchr(p, '\n');
1470 if (!p)
1471 break;
1472
1473 p++;
1474 }
1475
1476 if (logline) {
1477 char *eol = strchr(logline, '\n');
1478
1479 logline += 17;
1480
1481 if (eol) {
1482 if (eol[-1] == '\r')
1483 eol--;
7906085f 1484 http_log("%.*s\n", (int) (eol - logline), logline);
7434ba6d
PG
1485 c->suppress_log = 1;
1486 }
1487 }
3120d2a2 1488
cde25790
PG
1489#ifdef DEBUG_WMP
1490 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1491#endif
1492
1493 if (client_id && extract_rates(ratebuf, sizeof(ratebuf), c->buffer)) {
1494 HTTPContext *wmpc;
1495
1496 /* Now we have to find the client_id */
1497 for (wmpc = first_http_ctx; wmpc; wmpc = wmpc->next) {
1498 if (wmpc->wmp_client_id == client_id)
1499 break;
1500 }
1501
2d563d2f
AB
1502 if (wmpc && modify_current_stream(wmpc, ratebuf))
1503 wmpc->switch_pending = 1;
3120d2a2 1504 }
115329f1 1505
d445a7e9 1506 snprintf(msg, sizeof(msg), "POST command not handled");
cb275dd9 1507 c->stream = 0;
85f07f22
FB
1508 goto send_error;
1509 }
1510 if (http_start_receive_data(c) < 0) {
d445a7e9 1511 snprintf(msg, sizeof(msg), "could not open feed");
85f07f22
FB
1512 goto send_error;
1513 }
1514 c->http_error = 0;
1515 c->state = HTTPSTATE_RECEIVE_DATA;
1516 return 0;
1517 }
1518
cde25790 1519#ifdef DEBUG_WMP
611c5741 1520 if (strcmp(stream->filename + strlen(stream->filename) - 4, ".asf") == 0)
cde25790 1521 http_log("\nGot request:\n%s\n", c->buffer);
3120d2a2
PG
1522#endif
1523
85f07f22
FB
1524 if (c->stream->stream_type == STREAM_TYPE_STATUS)
1525 goto send_stats;
1526
1527 /* open input stream */
1528 if (open_input_stream(c, info) < 0) {
d445a7e9 1529 snprintf(msg, sizeof(msg), "Input stream corresponding to '%s' not found", url);
85f07f22
FB
1530 goto send_error;
1531 }
1532
1533 /* prepare http header */
1534 q = c->buffer;
d445a7e9 1535 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 200 OK\r\n");
85f07f22
FB
1536 mime_type = c->stream->fmt->mime_type;
1537 if (!mime_type)
087fa475 1538 mime_type = "application/x-octet-stream";
d445a7e9 1539 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Pragma: no-cache\r\n");
85f07f22
FB
1540
1541 /* for asf, we need extra headers */
8256c0a3 1542 if (!strcmp(c->stream->fmt->name,"asf_stream")) {
3120d2a2 1543 /* Need to allocate a client id */
3120d2a2 1544
1df93ae9 1545 c->wmp_client_id = av_random(&random_state) & 0x7fffffff;
3120d2a2 1546
d445a7e9 1547 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Server: Cougar 4.1.0.3923\r\nCache-Control: no-cache\r\nPragma: client-id=%d\r\nPragma: features=\"broadcast\"\r\n", c->wmp_client_id);
85f07f22 1548 }
d445a7e9
PG
1549 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-Type: %s\r\n", mime_type);
1550 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
115329f1 1551
85f07f22
FB
1552 /* prepare output buffer */
1553 c->http_error = 0;
1554 c->buffer_ptr = c->buffer;
1555 c->buffer_end = q;
1556 c->state = HTTPSTATE_SEND_HEADER;
1557 return 0;
1558 send_error:
1559 c->http_error = 404;
1560 q = c->buffer;
d445a7e9
PG
1561 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "HTTP/1.0 404 Not Found\r\n");
1562 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "Content-type: %s\r\n", "text/html");
1563 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "\r\n");
1564 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<HTML>\n");
1565 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<HEAD><TITLE>404 Not Found</TITLE></HEAD>\n");
1566 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "<BODY>%s</BODY>\n", msg);
1567 q += snprintf(q, q - (char *) c->buffer + c->buffer_size, "</HTML>\n");
85f07f22
FB
1568
1569 /* prepare output buffer */
1570 c->buffer_ptr = c->buffer;
1571 c->buffer_end = q;
1572 c->state = HTTPSTATE_SEND_HEADER;
1573 return 0;
1574 send_stats:
1575 compute_stats(c);
1576 c->http_error = 200; /* horrible : we use this value to avoid
1577 going to the send data state */
1578 c->state = HTTPSTATE_SEND_HEADER;
1579 return 0;
1580}
1581
0c1a9eda 1582static void fmt_bytecount(ByteIOContext *pb, int64_t count)
2ac887ba
PG
1583{
1584 static const char *suffix = " kMGTP";
1585 const char *s;
1586
611c5741 1587 for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++);
2ac887ba 1588
4733abcb 1589 url_fprintf(pb, "%"PRId64"%c", count, *s);
2ac887ba
PG
1590}
1591
85f07f22
FB
1592static void compute_stats(HTTPContext *c)
1593{
1594 HTTPContext *c1;
1595 FFStream *stream;
2effd274 1596 char *p;
85f07f22 1597 time_t ti;
2effd274 1598 int i, len;
899681cd 1599 ByteIOContext *pb;
cde25790 1600
899681cd 1601 if (url_open_dyn_buf(&pb) < 0) {
2effd274 1602 /* XXX: return an error ? */
cde25790 1603 c->buffer_ptr = c->buffer;
2effd274
FB
1604 c->buffer_end = c->buffer;
1605 return;
cde25790 1606 }
85f07f22 1607
2effd274
FB
1608 url_fprintf(pb, "HTTP/1.0 200 OK\r\n");
1609 url_fprintf(pb, "Content-type: %s\r\n", "text/html");
1610 url_fprintf(pb, "Pragma: no-cache\r\n");
1611 url_fprintf(pb, "\r\n");
115329f1 1612
2effd274 1613 url_fprintf(pb, "<HEAD><TITLE>FFServer Status</TITLE>\n");
611c5741 1614 if (c->stream->feed_filename)
2effd274 1615 url_fprintf(pb, "<link rel=\"shortcut icon\" href=\"%s\">\n", c->stream->feed_filename);
2effd274
FB
1616 url_fprintf(pb, "</HEAD>\n<BODY>");
1617 url_fprintf(pb, "<H1>FFServer Status</H1>\n");
85f07f22 1618 /* format status */
2effd274
FB
1619 url_fprintf(pb, "<H2>Available Streams</H2>\n");
1620 url_fprintf(pb, "<TABLE cellspacing=0 cellpadding=4>\n");
1621 url_fprintf(pb, "<TR><Th valign=top>Path<th align=left>Served<br>Conns<Th><br>bytes<Th valign=top>Format<Th>Bit rate<br>kbits/s<Th align=left>Video<br>kbits/s<th><br>Codec<Th align=left>Audio<br>kbits/s<th><br>Codec<Th align=left valign=top>Feed\n");
85f07f22
FB
1622 stream = first_stream;
1623 while (stream != NULL) {
42a63c6a
PG
1624 char sfilename[1024];
1625 char *eosf;
1626
a6e14edd 1627 if (stream->feed != stream) {
f7d78f36 1628 av_strlcpy(sfilename, stream->filename, sizeof(sfilename) - 10);
a6e14edd
PG
1629 eosf = sfilename + strlen(sfilename);
1630 if (eosf - sfilename >= 4) {
611c5741 1631 if (strcmp(eosf - 4, ".asf") == 0)
a6e14edd 1632 strcpy(eosf - 4, ".asx");
611c5741 1633 else if (strcmp(eosf - 3, ".rm") == 0)
a6e14edd 1634 strcpy(eosf - 3, ".ram");
25e3e53d 1635 else if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
829ac53d
FB
1636 /* generate a sample RTSP director if
1637 unicast. Generate an SDP redirector if
1638 multicast */
2effd274
FB
1639 eosf = strrchr(sfilename, '.');
1640 if (!eosf)
1641 eosf = sfilename + strlen(sfilename);
829ac53d
FB
1642 if (stream->is_multicast)
1643 strcpy(eosf, ".sdp");
1644 else
1645 strcpy(eosf, ".rtsp");
a6e14edd 1646 }
42a63c6a 1647 }
115329f1
DB
1648
1649 url_fprintf(pb, "<TR><TD><A HREF=\"/%s\">%s</A> ",
a6e14edd 1650 sfilename, stream->filename);
2effd274 1651 url_fprintf(pb, "<td align=right> %d <td align=right> ",
2ac887ba 1652 stream->conns_served);
2effd274 1653 fmt_bytecount(pb, stream->bytes_served);
a6e14edd
PG
1654 switch(stream->stream_type) {
1655 case STREAM_TYPE_LIVE:
1656 {
1657 int audio_bit_rate = 0;
1658 int video_bit_rate = 0;
58445440
ZK
1659 const char *audio_codec_name = "";
1660 const char *video_codec_name = "";
1661 const char *audio_codec_name_extra = "";
1662 const char *video_codec_name_extra = "";
a6e14edd
PG
1663
1664 for(i=0;i<stream->nb_streams;i++) {
1665 AVStream *st = stream->streams[i];
01f4895c
MN
1666 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
1667 switch(st->codec->codec_type) {
a6e14edd 1668 case CODEC_TYPE_AUDIO:
01f4895c 1669 audio_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1670 if (codec) {
1671 if (*audio_codec_name)
1672 audio_codec_name_extra = "...";
1673 audio_codec_name = codec->name;
1674 }
1675 break;
1676 case CODEC_TYPE_VIDEO:
01f4895c 1677 video_bit_rate += st->codec->bit_rate;
a6e14edd
PG
1678 if (codec) {
1679 if (*video_codec_name)
1680 video_codec_name_extra = "...";
1681 video_codec_name = codec->name;
1682 }
1683 break;
e240a0bb 1684 case CODEC_TYPE_DATA:
01f4895c 1685 video_bit_rate += st->codec->bit_rate;
e240a0bb 1686 break;
a6e14edd 1687 default:
0f4e8165 1688 abort();
79c4ea3c 1689 }
85f07f22 1690 }
115329f1 1691 url_fprintf(pb, "<TD align=center> %s <TD align=right> %d <TD align=right> %d <TD> %s %s <TD align=right> %d <TD> %s %s",
a6e14edd 1692 stream->fmt->name,
6edd6884 1693 stream->bandwidth,
a6e14edd
PG
1694 video_bit_rate / 1000, video_codec_name, video_codec_name_extra,
1695 audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra);
611c5741 1696 if (stream->feed)
2effd274 1697 url_fprintf(pb, "<TD>%s", stream->feed->filename);
611c5741 1698 else
2effd274 1699 url_fprintf(pb, "<TD>%s", stream->feed_filename);
2effd274 1700 url_fprintf(pb, "\n");
85f07f22 1701 }
a6e14edd
PG
1702 break;
1703 default:
2effd274 1704 url_fprintf(pb, "<TD align=center> - <TD align=right> - <TD align=right> - <td><td align=right> - <TD>\n");
a6e14edd 1705 break;
85f07f22 1706 }
85f07f22
FB
1707 }
1708 stream = stream->next;
1709 }
2effd274 1710 url_fprintf(pb, "</TABLE>\n");
a6e14edd
PG
1711
1712 stream = first_stream;
1713 while (stream != NULL) {
1714 if (stream->feed == stream) {
2effd274 1715 url_fprintf(pb, "<h2>Feed %s</h2>", stream->filename);
cde25790 1716 if (stream->pid) {
2effd274 1717 url_fprintf(pb, "Running as pid %d.\n", stream->pid);
cde25790 1718
2effd274
FB
1719#if defined(linux) && !defined(CONFIG_NOCUTILS)
1720 {
1721 FILE *pid_stat;
1722 char ps_cmd[64];
1723
1724 /* This is somewhat linux specific I guess */
115329f1
DB
1725 snprintf(ps_cmd, sizeof(ps_cmd),
1726 "ps -o \"%%cpu,cputime\" --no-headers %d",
2effd274 1727 stream->pid);
115329f1 1728
2effd274
FB
1729 pid_stat = popen(ps_cmd, "r");
1730 if (pid_stat) {
1731 char cpuperc[10];
1732 char cpuused[64];
115329f1
DB
1733
1734 if (fscanf(pid_stat, "%10s %64s", cpuperc,
2effd274
FB
1735 cpuused) == 2) {
1736 url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n",
1737 cpuperc, cpuused);
1738 }
1739 fclose(pid_stat);
cde25790 1740 }
cde25790
PG
1741 }
1742#endif
1743
2effd274 1744 url_fprintf(pb, "<p>");
cde25790 1745 }
2effd274 1746 url_fprintf(pb, "<table cellspacing=0 cellpadding=4><tr><th>Stream<th>type<th>kbits/s<th align=left>codec<th align=left>Parameters\n");
a6e14edd
PG
1747
1748 for (i = 0; i < stream->nb_streams; i++) {
1749 AVStream *st = stream->streams[i];
01f4895c 1750 AVCodec *codec = avcodec_find_encoder(st->codec->codec_id);
b29f97d1 1751 const char *type = "unknown";
b582f314
PG
1752 char parameters[64];
1753
1754 parameters[0] = 0;
a6e14edd 1755
01f4895c 1756 switch(st->codec->codec_type) {
a6e14edd
PG
1757 case CODEC_TYPE_AUDIO:
1758 type = "audio";
acdc8520 1759 snprintf(parameters, sizeof(parameters), "%d channel(s), %d Hz", st->codec->channels, st->codec->sample_rate);
a6e14edd
PG
1760 break;
1761 case CODEC_TYPE_VIDEO:
1762 type = "video";
01f4895c
MN
1763 snprintf(parameters, sizeof(parameters), "%dx%d, q=%d-%d, fps=%d", st->codec->width, st->codec->height,
1764 st->codec->qmin, st->codec->qmax, st->codec->time_base.den / st->codec->time_base.num);
a6e14edd
PG
1765 break;
1766 default:
0f4e8165 1767 abort();
a6e14edd 1768 }
2effd274 1769 url_fprintf(pb, "<tr><td align=right>%d<td>%s<td align=right>%d<td>%s<td>%s\n",
01f4895c 1770 i, type, st->codec->bit_rate/1000, codec ? codec->name : "", parameters);
a6e14edd 1771 }
2effd274 1772 url_fprintf(pb, "</table>\n");
a6e14edd 1773
115329f1 1774 }
a6e14edd
PG
1775 stream = stream->next;
1776 }
115329f1 1777
85f07f22
FB
1778#if 0
1779 {
1780 float avg;
1781 AVCodecContext *enc;
1782 char buf[1024];
115329f1 1783
85f07f22
FB
1784 /* feed status */
1785 stream = first_feed;
1786 while (stream != NULL) {
2effd274
FB
1787 url_fprintf(pb, "<H1>Feed '%s'</H1>\n", stream->filename);
1788 url_fprintf(pb, "<TABLE>\n");
1789 url_fprintf(pb, "<TR><TD>Parameters<TD>Frame count<TD>Size<TD>Avg bitrate (kbits/s)\n");
85f07f22
FB
1790 for(i=0;i<stream->nb_streams;i++) {
1791 AVStream *st = stream->streams[i];
1792 FeedData *fdata = st->priv_data;
01f4895c 1793 enc = st->codec;
115329f1 1794
85f07f22
FB
1795 avcodec_string(buf, sizeof(buf), enc);
1796 avg = fdata->avg_frame_size * (float)enc->rate * 8.0;
1797 if (enc->codec->type == CODEC_TYPE_AUDIO && enc->frame_size > 0)
1798 avg /= enc->frame_size;
949b1a13 1799 url_fprintf(pb, "<TR><TD>%s <TD> %d <TD> %"PRId64" <TD> %0.1f\n",
85f07f22
FB
1800 buf, enc->frame_number, fdata->data_count, avg / 1000.0);
1801 }
2effd274 1802 url_fprintf(pb, "</TABLE>\n");
85f07f22
FB
1803 stream = stream->next_feed;
1804 }
1805 }
1806#endif
1807
1808 /* connection status */
2effd274 1809 url_fprintf(pb, "<H2>Connection Status</H2>\n");
85f07f22 1810
2effd274 1811 url_fprintf(pb, "Number of connections: %d / %d<BR>\n",
85f07f22
FB
1812 nb_connections, nb_max_connections);
1813
2effd274 1814 url_fprintf(pb, "Bandwidth in use: %dk / %dk<BR>\n",
6edd6884 1815 current_bandwidth, max_bandwidth);
42a63c6a 1816
2effd274
FB
1817 url_fprintf(pb, "<TABLE>\n");
1818 url_fprintf(pb, "<TR><th>#<th>File<th>IP<th>Proto<th>State<th>Target bits/sec<th>Actual bits/sec<th>Bytes transferred\n");
85f07f22
FB
1819 c1 = first_http_ctx;
1820 i = 0;
2effd274 1821 while (c1 != NULL) {
cde25790
PG
1822 int bitrate;
1823 int j;
1824
1825 bitrate = 0;
2effd274
FB
1826 if (c1->stream) {
1827 for (j = 0; j < c1->stream->nb_streams; j++) {
2d563d2f 1828 if (!c1->stream->feed)
01f4895c 1829 bitrate += c1->stream->streams[j]->codec->bit_rate;
2d563d2f
AB
1830 else if (c1->feed_streams[j] >= 0)
1831 bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec->bit_rate;
cde25790
PG
1832 }
1833 }
1834
85f07f22
FB
1835 i++;
1836 p = inet_ntoa(c1->from_addr.sin_addr);
115329f1
DB
1837 url_fprintf(pb, "<TR><TD><B>%d</B><TD>%s%s<TD>%s<TD>%s<TD>%s<td align=right>",
1838 i,
1839 c1->stream ? c1->stream->filename : "",
2effd274 1840 c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
115329f1 1841 p,
2effd274
FB
1842 c1->protocol,
1843 http_state[c1->state]);
1844 fmt_bytecount(pb, bitrate);
1845 url_fprintf(pb, "<td align=right>");
1846 fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8);
1847 url_fprintf(pb, "<td align=right>");
1848 fmt_bytecount(pb, c1->data_count);
1849 url_fprintf(pb, "\n");
85f07f22
FB
1850 c1 = c1->next;
1851 }
2effd274 1852 url_fprintf(pb, "</TABLE>\n");
115329f1 1853
85f07f22
FB
1854 /* date */
1855 ti = time(NULL);
1856 p = ctime(&ti);
2effd274
FB
1857 url_fprintf(pb, "<HR size=1 noshade>Generated at %s", p);
1858 url_fprintf(pb, "</BODY>\n</HTML>\n");
85f07f22 1859
2effd274
FB
1860 len = url_close_dyn_buf(pb, &c->pb_buffer);
1861 c->buffer_ptr = c->pb_buffer;
1862 c->buffer_end = c->pb_buffer + len;
85f07f22
FB
1863}
1864
2effd274
FB
1865/* check if the parser needs to be opened for stream i */
1866static void open_parser(AVFormatContext *s, int i)
85f07f22 1867{
2effd274
FB
1868 AVStream *st = s->streams[i];
1869 AVCodec *codec;
31def229 1870
01f4895c
MN
1871 if (!st->codec->codec) {
1872 codec = avcodec_find_decoder(st->codec->codec_id);
2effd274 1873 if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) {
01f4895c 1874 st->codec->parse_only = 1;
611c5741 1875 if (avcodec_open(st->codec, codec) < 0)
01f4895c 1876 st->codec->parse_only = 0;
cde25790
PG
1877 }
1878 }
85f07f22
FB
1879}
1880
1881static int open_input_stream(HTTPContext *c, const char *info)
1882{
1883 char buf[128];
1884 char input_filename[1024];
1885 AVFormatContext *s;
c351cc7f 1886 int buf_size, i, ret;
0c1a9eda 1887 int64_t stream_pos;
85f07f22
FB
1888
1889 /* find file name */
1890 if (c->stream->feed) {
1891 strcpy(input_filename, c->stream->feed->feed_filename);
1892 buf_size = FFM_PACKET_SIZE;
1893 /* compute position (absolute time) */
611c5741 1894 if (find_info_tag(buf, sizeof(buf), "date", info))
f9436161 1895 {
85f07f22 1896 stream_pos = parse_date(buf, 0);
f9436161
SS
1897 if (stream_pos == INT64_MIN)
1898 return -1;
1899 }
611c5741 1900 else if (find_info_tag(buf, sizeof(buf), "buffer", info)) {
f747e6d3 1901 int prebuffer = strtol(buf, 0, 10);
0c1a9eda 1902 stream_pos = av_gettime() - prebuffer * (int64_t)1000000;
611c5741 1903 } else
0c1a9eda 1904 stream_pos = av_gettime() - c->stream->prebuffer * (int64_t)1000;
85f07f22
FB
1905 } else {
1906 strcpy(input_filename, c->stream->feed_filename);
1907 buf_size = 0;
1908 /* compute position (relative time) */
611c5741 1909 if (find_info_tag(buf, sizeof(buf), "date", info))
f9436161 1910 {
85f07f22 1911 stream_pos = parse_date(buf, 1);
f9436161
SS
1912 if (stream_pos == INT64_MIN)
1913 return -1;
1914 }
611c5741 1915 else
85f07f22 1916 stream_pos = 0;
85f07f22
FB
1917 }
1918 if (input_filename[0] == '\0')
1919 return -1;
1920
8256c0a3
PG
1921#if 0
1922 { time_t when = stream_pos / 1000000;
949b1a13 1923 http_log("Stream pos = %"PRId64", time=%s", stream_pos, ctime(&when));
8256c0a3
PG
1924 }
1925#endif
1926
85f07f22 1927 /* open stream */
c351cc7f
BC
1928 if ((ret = av_open_input_file(&s, input_filename, c->stream->ifmt,
1929 buf_size, c->stream->ap_in)) < 0) {
1930 http_log("could not open %s: %d\n", input_filename, ret);
85f07f22 1931 return -1;
2effd274 1932 }
9dc0bc3d 1933 s->flags |= AVFMT_FLAG_GENPTS;
85f07f22 1934 c->fmt_in = s;
89da5781 1935 av_find_stream_info(c->fmt_in);
115329f1 1936
2effd274
FB
1937 /* open each parser */
1938 for(i=0;i<s->nb_streams;i++)
1939 open_parser(s, i);
1940
1941 /* choose stream as clock source (we favorize video stream if
1942 present) for packet sending */
1943 c->pts_stream_index = 0;
1944 for(i=0;i<c->stream->nb_streams;i++) {
115329f1 1945 if (c->pts_stream_index == 0 &&
01f4895c 1946 c->stream->streams[i]->codec->codec_type == CODEC_TYPE_VIDEO) {
2effd274
FB
1947 c->pts_stream_index = i;
1948 }
1949 }
85f07f22 1950
e8d27bc3 1951#if 1
611c5741 1952 if (c->fmt_in->iformat->read_seek)
e8d27bc3 1953 c->fmt_in->iformat->read_seek(c->fmt_in, 0, stream_pos, 0);
e240a0bb 1954#endif
2effd274
FB
1955 /* set the start time (needed for maxtime and RTP packet timing) */
1956 c->start_time = cur_time;
1957 c->first_pts = AV_NOPTS_VALUE;
85f07f22
FB
1958 return 0;
1959}
1960
e240a0bb
FB
1961/* return the server clock (in us) */
1962static int64_t get_server_clock(HTTPContext *c)
2effd274 1963{
e240a0bb 1964 /* compute current pts value from system time */
c3f58185 1965 return (cur_time - c->start_time) * 1000;
2effd274
FB
1966}
1967
e240a0bb
FB
1968/* return the estimated time at which the current packet must be sent
1969 (in us) */
1970static int64_t get_packet_send_clock(HTTPContext *c)
2effd274 1971{
e240a0bb 1972 int bytes_left, bytes_sent, frame_bytes;
115329f1 1973
e240a0bb 1974 frame_bytes = c->cur_frame_bytes;
611c5741 1975 if (frame_bytes <= 0)
e240a0bb 1976 return c->cur_pts;
611c5741 1977 else {
e240a0bb
FB
1978 bytes_left = c->buffer_end - c->buffer_ptr;
1979 bytes_sent = frame_bytes - bytes_left;
1980 return c->cur_pts + (c->cur_frame_duration * bytes_sent) / frame_bytes;
2effd274 1981 }
2effd274 1982}
2effd274 1983
2effd274 1984
2effd274
FB
1985static int http_prepare_data(HTTPContext *c)
1986{
1987 int i, len, ret;
1988 AVFormatContext *ctx;
1989
bc351386 1990 av_freep(&c->pb_buffer);
2effd274
FB
1991 switch(c->state) {
1992 case HTTPSTATE_SEND_DATA_HEADER:
1993 memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
f7d78f36
MR
1994 av_strlcpy(c->fmt_ctx.author, c->stream->author,
1995 sizeof(c->fmt_ctx.author));
1996 av_strlcpy(c->fmt_ctx.comment, c->stream->comment,
1997 sizeof(c->fmt_ctx.comment));
1998 av_strlcpy(c->fmt_ctx.copyright, c->stream->copyright,
1999 sizeof(c->fmt_ctx.copyright));
2000 av_strlcpy(c->fmt_ctx.title, c->stream->title,
2001 sizeof(c->fmt_ctx.title));
2effd274
FB
2002
2003 /* open output stream by using specified codecs */
2004 c->fmt_ctx.oformat = c->stream->fmt;
2005 c->fmt_ctx.nb_streams = c->stream->nb_streams;
2006 for(i=0;i<c->fmt_ctx.nb_streams;i++) {
2007 AVStream *st;
bb270c08 2008 AVStream *src;
2effd274 2009 st = av_mallocz(sizeof(AVStream));
8d931070 2010 st->codec= avcodec_alloc_context();
2effd274
FB
2011 c->fmt_ctx.streams[i] = st;
2012 /* if file or feed, then just take streams from FFStream struct */
115329f1 2013 if (!c->stream->feed ||
2effd274 2014 c->stream->feed == c->stream)
7c054ea7 2015 src = c->stream->streams[i];
2effd274 2016 else
7c054ea7
PG
2017 src = c->stream->feed->streams[c->stream->feed_streams[i]];
2018
bb270c08
DB
2019 *st = *src;
2020 st->priv_data = 0;
01f4895c 2021 st->codec->frame_number = 0; /* XXX: should be done in
2effd274
FB
2022 AVStream, not in codec */
2023 }
2024 c->got_key_frame = 0;
2025
2026 /* prepare header and save header data in a stream */
2027 if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) {
2028 /* XXX: potential leak */
2029 return -1;
2030 }
899681cd 2031 c->fmt_ctx.pb->is_streamed = 1;
2effd274 2032
3c27199b 2033 av_set_parameters(&c->fmt_ctx, NULL);
f75cdda7
AB
2034 if (av_write_header(&c->fmt_ctx) < 0)
2035 return -1;
2effd274 2036
899681cd 2037 len = url_close_dyn_buf(c->fmt_ctx.pb, &c->pb_buffer);
2effd274
FB
2038 c->buffer_ptr = c->pb_buffer;
2039 c->buffer_end = c->pb_buffer + len;
2040
2041 c->state = HTTPSTATE_SEND_DATA;
85f07f22
FB
2042 c->last_packet_sent = 0;
2043 break;
2044 case HTTPSTATE_SEND_DATA:
2045 /* find a new packet */
85f07f22 2046 /* read a packet from the input stream */
611c5741 2047 if (c->stream->feed)
115329f1 2048 ffm_set_write_index(c->fmt_in,
85f07f22
FB
2049 c->stream->feed->feed_write_index,
2050 c->stream->feed->feed_size);
ec3b2232 2051
115329f1 2052 if (c->stream->max_time &&
611c5741 2053 c->stream->max_time + c->start_time - cur_time < 0)
ec3b2232
PG
2054 /* We have timed out */
2055 c->state = HTTPSTATE_SEND_DATA_TRAILER;
611c5741 2056 else {
1cb4d12c 2057 AVPacket pkt;
6edd6884 2058 redo:
2effd274
FB
2059 if (av_read_frame(c->fmt_in, &pkt) < 0) {
2060 if (c->stream->feed && c->stream->feed->feed_opened) {
2061 /* if coming from feed, it means we reached the end of the
2062 ffm file, so must wait for more data */
2063 c->state = HTTPSTATE_WAIT_FEED;
2064 return 1; /* state changed */
2065 } else {
6edd6884
FB
2066 if (c->stream->loop) {
2067 av_close_input_file(c->fmt_in);
2068 c->fmt_in = NULL;
2069 if (open_input_stream(c, "") < 0)
2070 goto no_loop;
2071 goto redo;
2072 } else {
2073 no_loop:
2074 /* must send trailer now because eof or error */
2075 c->state = HTTPSTATE_SEND_DATA_TRAILER;
2076 }
2effd274
FB
2077 }
2078 } else {
2079 /* update first pts if needed */
1bc1cfdd 2080 if (c->first_pts == AV_NOPTS_VALUE) {
c0df9d75 2081 c->first_pts = av_rescale_q(pkt.dts, c->fmt_in->streams[pkt.stream_index]->time_base, AV_TIME_BASE_Q);
1bc1cfdd
GF
2082 c->start_time = cur_time;
2083 }
2effd274
FB
2084 /* send it to the appropriate stream */
2085 if (c->stream->feed) {
2086 /* if coming from a feed, select the right stream */
2087 if (c->switch_pending) {
2088 c->switch_pending = 0;
2089 for(i=0;i<c->stream->nb_streams;i++) {
611c5741
AB
2090 if (c->switch_feed_streams[i] == pkt.stream_index)
2091 if (pkt.flags & PKT_FLAG_KEY)
2effd274 2092 do_switch_stream(c, i);
611c5741 2093 if (c->switch_feed_streams[i] >= 0)
2effd274 2094 c->switch_pending = 1;
2effd274
FB
2095 }
2096 }
cde25790 2097 for(i=0;i<c->stream->nb_streams;i++) {
2effd274
FB
2098 if (c->feed_streams[i] == pkt.stream_index) {
2099 pkt.stream_index = i;
611c5741 2100 if (pkt.flags & PKT_FLAG_KEY)
2effd274 2101 c->got_key_frame |= 1 << i;
115329f1 2102 /* See if we have all the key frames, then
2effd274 2103 * we start to send. This logic is not quite
115329f1 2104 * right, but it works for the case of a
2effd274 2105 * single video stream with one or more
115329f1
DB
2106 * audio streams (for which every frame is
2107 * typically a key frame).
2effd274 2108 */
115329f1 2109 if (!c->stream->send_on_key ||
611c5741 2110 ((c->got_key_frame + 1) >> c->stream->nb_streams))
2effd274 2111 goto send_it;
cde25790
PG
2112 }
2113 }
2effd274
FB
2114 } else {
2115 AVCodecContext *codec;
115329f1 2116
2effd274
FB
2117 send_it:
2118 /* specific handling for RTP: we use several
2119 output stream (one for each RTP
2120 connection). XXX: need more abstract handling */
2121 if (c->is_packetized) {
e240a0bb
FB
2122 AVStream *st;
2123 /* compute send time and duration */
2124 st = c->fmt_in->streams[pkt.stream_index];
c0df9d75 2125 c->cur_pts = av_rescale_q(pkt.dts, st->time_base, AV_TIME_BASE_Q);
e240a0bb 2126 if (st->start_time != AV_NOPTS_VALUE)
c0df9d75
MN
2127 c->cur_pts -= av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q);
2128 c->cur_frame_duration = av_rescale_q(pkt.duration, st->time_base, AV_TIME_BASE_Q);
e240a0bb
FB
2129#if 0
2130 printf("index=%d pts=%0.3f duration=%0.6f\n",
2131 pkt.stream_index,
115329f1 2132 (double)c->cur_pts /
e240a0bb 2133 AV_TIME_BASE,
115329f1 2134 (double)c->cur_frame_duration /
e240a0bb
FB
2135 AV_TIME_BASE);
2136#endif
2137 /* find RTP context */
2effd274
FB
2138 c->packet_stream_index = pkt.stream_index;
2139 ctx = c->rtp_ctx[c->packet_stream_index];
1b52b6bd
MN
2140 if(!ctx) {
2141 av_free_packet(&pkt);
1bc1cfdd 2142 break;
1b52b6bd 2143 }
01f4895c 2144 codec = ctx->streams[0]->codec;
6edd6884
FB
2145 /* only one stream per RTP connection */
2146 pkt.stream_index = 0;
2effd274
FB
2147 } else {
2148 ctx = &c->fmt_ctx;
2149 /* Fudge here */
01f4895c 2150 codec = ctx->streams[pkt.stream_index]->codec;
85f07f22 2151 }
115329f1 2152
2effd274 2153 if (c->is_packetized) {
bc351386
FB
2154 int max_packet_size;
2155 if (c->rtp_protocol == RTSP_PROTOCOL_RTP_TCP)
2156 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
2157 else
2158 max_packet_size = url_get_max_packet_size(c->rtp_handles[c->packet_stream_index]);
2159 ret = url_open_dyn_packet_buf(&ctx->pb, max_packet_size);
2effd274
FB
2160 } else {
2161 ret = url_open_dyn_buf(&ctx->pb);
2162 }
2163 if (ret < 0) {
2164 /* XXX: potential leak */
2165 return -1;
2166 }
f1debfd0
AB
2167 if (pkt.dts != AV_NOPTS_VALUE)
2168 pkt.dts = av_rescale_q(pkt.dts,
2169 c->fmt_in->streams[pkt.stream_index]->time_base,
2170 ctx->streams[pkt.stream_index]->time_base);
2171 if (pkt.pts != AV_NOPTS_VALUE)
2172 pkt.pts = av_rescale_q(pkt.pts,
2173 c->fmt_in->streams[pkt.stream_index]->time_base,
2174 ctx->streams[pkt.stream_index]->time_base);
611c5741 2175 if (av_write_frame(ctx, &pkt))
2effd274 2176 c->state = HTTPSTATE_SEND_DATA_TRAILER;
115329f1 2177
899681cd 2178 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
e240a0bb 2179 c->cur_frame_bytes = len;
2effd274
FB
2180 c->buffer_ptr = c->pb_buffer;
2181 c->buffer_end = c->pb_buffer + len;
115329f1 2182
2effd274 2183 codec->frame_number++;
8a0b55ff
BC
2184 if (len == 0) {
2185 av_free_packet(&pkt);
e240a0bb 2186 goto redo;
8a0b55ff 2187 }
f747e6d3 2188 }
2effd274 2189 av_free_packet(&pkt);
85f07f22 2190 }
85f07f22 2191 }
85f07f22
FB
2192 break;
2193 default:
2194 case HTTPSTATE_SEND_DATA_TRAILER:
2195 /* last packet test ? */
2effd274 2196 if (c->last_packet_sent || c->is_packetized)
85f07f22 2197 return -1;
2effd274 2198 ctx = &c->fmt_ctx;
85f07f22 2199 /* prepare header */
2effd274
FB
2200 if (url_open_dyn_buf(&ctx->pb) < 0) {
2201 /* XXX: potential leak */
2202 return -1;
2203 }
2204 av_write_trailer(ctx);
899681cd 2205 len = url_close_dyn_buf(ctx->pb, &c->pb_buffer);
2effd274
FB
2206 c->buffer_ptr = c->pb_buffer;
2207 c->buffer_end = c->pb_buffer + len;
2208
85f07f22
FB
2209 c->last_packet_sent = 1;
2210 break;
2211 }
2212 return 0;
2213}
2214
2215/* should convert the format at the same time */
bc351386
FB
2216/* send data starting at c->buffer_ptr to the output connection
2217 (either UDP or TCP connection) */
5eb765ef 2218static int http_send_data(HTTPContext *c)
85f07f22 2219{
e240a0bb 2220 int len, ret;
85f07f22 2221
bc351386
FB
2222 for(;;) {
2223 if (c->buffer_ptr >= c->buffer_end) {
2224 ret = http_prepare_data(c);
2225 if (ret < 0)
2226 return -1;
611c5741 2227 else if (ret != 0)
bc351386
FB
2228 /* state change requested */
2229 break;
2effd274 2230 } else {
bc351386
FB
2231 if (c->is_packetized) {
2232 /* RTP data output */
2233 len = c->buffer_end - c->buffer_ptr;
2234 if (len < 4) {
2235 /* fail safe - should never happen */
2236 fail1:
2237 c->buffer_ptr = c->buffer_end;
2effd274
FB
2238 return 0;
2239 }
bc351386
FB
2240 len = (c->buffer_ptr[0] << 24) |
2241 (c->buffer_ptr[1] << 16) |
2242 (c->buffer_ptr[2] << 8) |
2243 (c->buffer_ptr[3]);
2244 if (len > (c->buffer_end - c->buffer_ptr))
2245 goto fail1;
e240a0bb
FB
2246 if ((get_packet_send_clock(c) - get_server_clock(c)) > 0) {
2247 /* nothing to send yet: we can wait */
2248 return 0;
2249 }
2250
2251 c->data_count += len;
2252 update_datarate(&c->datarate, c->data_count);
2253 if (c->stream)
2254 c->stream->bytes_served += len;
2255
bc351386
FB
2256 if (c->rtp_protocol == RTSP_PROTOCOL_RTP_TCP) {
2257 /* RTP packets are sent inside the RTSP TCP connection */
899681cd 2258 ByteIOContext *pb;
bc351386
FB
2259 int interleaved_index, size;
2260 uint8_t header[4];
2261 HTTPContext *rtsp_c;
115329f1 2262
bc351386
FB
2263 rtsp_c = c->rtsp_c;
2264 /* if no RTSP connection left, error */
2265 if (!rtsp_c)
2266 return -1;
2267 /* if already sending something, then wait. */
611c5741 2268 if (rtsp_c->state != RTSPSTATE_WAIT_REQUEST)
bc351386 2269 break;
899681cd 2270 if (url_open_dyn_buf(&pb) < 0)
bc351386
FB
2271 goto fail1;
2272 interleaved_index = c->packet_stream_index * 2;
2273 /* RTCP packets are sent at odd indexes */
2274 if (c->buffer_ptr[1] == 200)
2275 interleaved_index++;
2276 /* write RTSP TCP header */
2277 header[0] = '$';
2278 header[1] = interleaved_index;
2279 header[2] = len >> 8;
2280 header[3] = len;
2281 put_buffer(pb, header, 4);
2282 /* write RTP packet data */
2283 c->buffer_ptr += 4;
2284 put_buffer(pb, c->buffer_ptr, len);
2285 size = url_close_dyn_buf(pb, &c->packet_buffer);
2286 /* prepare asynchronous TCP sending */
2287 rtsp_c->packet_buffer_ptr = c->packet_buffer;
2288 rtsp_c->packet_buffer_end = c->packet_buffer + size;
e240a0bb 2289 c->buffer_ptr += len;
115329f1 2290
e240a0bb 2291 /* send everything we can NOW */
c60202df
AB
2292 len = send(rtsp_c->fd, rtsp_c->packet_buffer_ptr,
2293 rtsp_c->packet_buffer_end - rtsp_c->packet_buffer_ptr, 0);
611c5741 2294 if (len > 0)
e240a0bb 2295 rtsp_c->packet_buffer_ptr += len;
e240a0bb
FB
2296 if (rtsp_c->packet_buffer_ptr < rtsp_c->packet_buffer_end) {
2297 /* if we could not send all the data, we will
2298 send it later, so a new state is needed to
2299 "lock" the RTSP TCP connection */
2300 rtsp_c->state = RTSPSTATE_SEND_PACKET;
2301 break;
611c5741 2302 } else
e240a0bb
FB
2303 /* all data has been sent */
2304 av_freep(&c->packet_buffer);
e240a0bb
FB
2305 } else {
2306 /* send RTP packet directly in UDP */
bc351386 2307 c->buffer_ptr += 4;
115329f1 2308 url_write(c->rtp_handles[c->packet_stream_index],
bc351386 2309 c->buffer_ptr, len);
e240a0bb
FB
2310 c->buffer_ptr += len;
2311 /* here we continue as we can send several packets per 10 ms slot */
bc351386 2312 }
bc351386
FB
2313 } else {
2314 /* TCP data output */
c60202df 2315 len = send(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
bc351386 2316 if (len < 0) {
8da4034f 2317 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
611c5741 2318 ff_neterrno() != FF_NETERROR(EINTR))
bc351386
FB
2319 /* error : close connection */
2320 return -1;
611c5741 2321 else
bc351386 2322 return 0;
611c5741 2323 } else
bc351386 2324 c->buffer_ptr += len;
611c5741 2325
e240a0bb
FB
2326 c->data_count += len;
2327 update_datarate(&c->datarate, c->data_count);
2328 if (c->stream)
2329 c->stream->bytes_served += len;
2330 break;
2effd274 2331 }
85f07f22 2332 }
bc351386 2333 } /* for(;;) */
85f07f22
FB
2334 return 0;
2335}
2336
2337static int http_start_receive_data(HTTPContext *c)
2338{
2339 int fd;
2340
2341 if (c->stream->feed_opened)
2342 return -1;
2343
e322ea48
PG
2344 /* Don't permit writing to this one */
2345 if (c->stream->readonly)
2346 return -1;
2347
85f07f22
FB
2348 /* open feed */
2349 fd = open(c->stream->feed_filename, O_RDWR);
2350 if (fd < 0)
2351 return -1;
2352 c->feed_fd = fd;
115329f1 2353
85f07f22
FB
2354 c->stream->feed_write_index = ffm_read_write_index(fd);
2355 c->stream->feed_size = lseek(fd, 0, SEEK_END);
2356 lseek(fd, 0, SEEK_SET);
2357
2358 /* init buffer input */
2359 c->buffer_ptr = c->buffer;
2360 c->buffer_end = c->buffer + FFM_PACKET_SIZE;
2361 c->stream->feed_opened = 1;
2362 return 0;
2363}
115329f1 2364
85f07f22
FB
2365static int http_receive_data(HTTPContext *c)
2366{
85f07f22
FB
2367 HTTPContext *c1;
2368
a6e14edd
PG
2369 if (c->buffer_end > c->buffer_ptr) {
2370 int len;
2371
c60202df 2372 len = recv(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr, 0);
a6e14edd 2373 if (len < 0) {
8da4034f 2374 if (ff_neterrno() != FF_NETERROR(EAGAIN) &&
611c5741 2375 ff_neterrno() != FF_NETERROR(EINTR))
a6e14edd
PG
2376 /* error : close connection */
2377 goto fail;
611c5741 2378 } else if (len == 0)
a6e14edd
PG
2379 /* end of connection : close it */
2380 goto fail;
611c5741 2381 else {
a6e14edd
PG
2382 c->buffer_ptr += len;
2383 c->data_count += len;
5eb765ef 2384 update_datarate(&c->datarate, c->data_count);
a6e14edd
PG
2385 }
2386 }
2387
d445a7e9
PG
2388 if (c->buffer_ptr - c->buffer >= 2 && c->data_count > FFM_PACKET_SIZE) {
2389 if (c->buffer[0] != 'f' ||
2390 c->buffer[1] != 'm') {
2391 http_log("Feed stream has become desynchronized -- disconnecting\n");
2392 goto fail;
2393 }
2394 }
2395
85f07f22 2396 if (c->buffer_ptr >= c->buffer_end) {
f747e6d3 2397 FFStream *feed = c->stream;
85f07f22
FB
2398 /* a packet has been received : write it in the store, except
2399 if header */
2400 if (c->data_count > FFM_PACKET_SIZE) {
115329f1 2401
949b1a13 2402 // printf("writing pos=0x%"PRIx64" size=0x%"PRIx64"\n", feed->feed_write_index, feed->feed_size);
85f07f22
FB
2403 /* XXX: use llseek or url_seek */
2404 lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
2405 write(c->feed_fd, c->buffer, FFM_PACKET_SIZE);
115329f1 2406
85f07f22
FB
2407 feed->feed_write_index += FFM_PACKET_SIZE;
2408 /* update file size */
2409 if (feed->feed_write_index > c->stream->feed_size)
2410 feed->feed_size = feed->feed_write_index;
2411
2412 /* handle wrap around if max file size reached */
6b0bdc75 2413 if (c->stream->feed_max_size && feed->feed_write_index >= c->stream->feed_max_size)
85f07f22
FB
2414 feed->feed_write_index = FFM_PACKET_SIZE;
2415
2416 /* write index */
2417 ffm_write_write_index(c->feed_fd, feed->feed_write_index);
2418
2419 /* wake up any waiting connections */
2420 for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
115329f1 2421 if (c1->state == HTTPSTATE_WAIT_FEED &&
611c5741 2422 c1->stream->feed == c->stream->feed)
85f07f22 2423 c1->state = HTTPSTATE_SEND_DATA;
85f07f22 2424 }
f747e6d3
PG
2425 } else {
2426 /* We have a header in our hands that contains useful data */
2427 AVFormatContext s;
bd7cf6ad 2428 AVInputFormat *fmt_in;
f747e6d3
PG
2429 int i;
2430
2431 memset(&s, 0, sizeof(s));
2432
899681cd 2433 url_open_buf(&s.pb, c->buffer, c->buffer_end - c->buffer, URL_RDONLY);
899681cd 2434 s.pb->is_streamed = 1;
f747e6d3 2435
bd7cf6ad
FB
2436 /* use feed output format name to find corresponding input format */
2437 fmt_in = av_find_input_format(feed->fmt->name);
2438 if (!fmt_in)
2439 goto fail;
2440
98486a6b
RS
2441 if (fmt_in->priv_data_size > 0) {
2442 s.priv_data = av_mallocz(fmt_in->priv_data_size);
2443 if (!s.priv_data)
2444 goto fail;
bb270c08
DB
2445 } else
2446 s.priv_data = NULL;
ec3b2232 2447
bd7cf6ad 2448 if (fmt_in->read_header(&s, 0) < 0) {
ec3b2232 2449 av_freep(&s.priv_data);
f747e6d3
PG
2450 goto fail;
2451 }
2452
2453 /* Now we have the actual streams */
2454 if (s.nb_streams != feed->nb_streams) {
ec3b2232 2455 av_freep(&s.priv_data);
f747e6d3
PG
2456 goto fail;
2457 }
611c5741 2458 for (i = 0; i < s.nb_streams; i++)
115329f1 2459 memcpy(feed->streams[i]->codec,
01f4895c 2460 s.streams[i]->codec, sizeof(AVCodecContext));
ec3b2232 2461 av_freep(&s.priv_data);
85f07f22
FB
2462 }
2463 c->buffer_ptr = c->buffer;
2464 }
2465
85f07f22
FB
2466 return 0;
2467 fail:
2468 c->stream->feed_opened = 0;
2469 close(c->feed_fd);
2470 return -1;
2471}
2472
2effd274
FB
2473/********************************************************************/
2474/* RTSP handling */
2475
2476static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number)
2477{
2478 const char *str;
2479 time_t ti;
2480 char *p;
2481 char buf2[32];
2482
2483 switch(error_number) {
7e665cd3
LA
2484 case RTSP_STATUS_OK:
2485 str = "OK";
2486 break;
2487 case RTSP_STATUS_METHOD:
2488 str = "Method Not Allowed";
2489 break;
2490 case RTSP_STATUS_BANDWIDTH:
2491 str = "Not Enough Bandwidth";
2492 break;
2493 case RTSP_STATUS_SESSION:
2494 str = "Session Not Found";
2495 break;
2496 case RTSP_STATUS_STATE:
2497 str = "Method Not Valid in This State";
2498 break;
2499 case RTSP_STATUS_AGGREGATE:
2500 str = "Aggregate operation not allowed";
2501 break;
2502 case RTSP_STATUS_ONLY_AGGREGATE:
2503 str = "Only aggregate operation allowed";
2504 break;
2505 case RTSP_STATUS_TRANSPORT:
2506 str = "Unsupported transport";
2507 break;
2508 case RTSP_STATUS_INTERNAL:
2509 str = "Internal Server Error";
2510 break;
2511 case RTSP_STATUS_SERVICE:
2512 str = "Service Unavailable";
2513 break;
2514 case RTSP_STATUS_VERSION:
2515 str = "RTSP Version not supported";
2516 break;
2effd274
FB
2517 default:
2518 str = "Unknown Error";
2519 break;
2520 }
115329f1 2521
2effd274
FB
2522 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str);
2523 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2524
2525 /* output GMT time */
2526 ti = time(NULL);
2527 p = ctime(&ti);
2528 strcpy(buf2, p);
2529 p = buf2 + strlen(p) - 1;
2530 if (*p == '\n')
2531 *p = '\0';
2532 url_fprintf(c->pb, "Date: %s GMT\r\n", buf2);
2533}
2534
2535static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number)
2536{
2537 rtsp_reply_header(c, error_number);
2538 url_fprintf(c->pb, "\r\n");
2539}
2540
2541static int rtsp_parse_request(HTTPContext *c)
2542{
2543 const char *p, *p1, *p2;
2544 char cmd[32];
2545 char url[1024];
2546 char protocol[32];
2547 char line[1024];
2effd274
FB
2548 int len;
2549 RTSPHeader header1, *header = &header1;
115329f1 2550
2effd274
FB
2551 c->buffer_ptr[0] = '\0';
2552 p = c->buffer;
115329f1 2553
2effd274
FB
2554 get_word(cmd, sizeof(cmd), &p);
2555 get_word(url, sizeof(url), &p);
2556 get_word(protocol, sizeof(protocol), &p);
2557
f7d78f36
MR
2558 av_strlcpy(c->method, cmd, sizeof(c->method));
2559 av_strlcpy(c->url, url, sizeof(c->url));
2560 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
2effd274 2561
899681cd 2562 if (url_open_dyn_buf(&c->pb) < 0) {
2effd274
FB
2563 /* XXX: cannot do more */
2564 c->pb = NULL; /* safety */
2565 return -1;
2566 }
2567
2568 /* check version name */
2569 if (strcmp(protocol, "RTSP/1.0") != 0) {
2570 rtsp_reply_error(c, RTSP_STATUS_VERSION);
2571 goto the_end;
2572 }
2573
2574 /* parse each header line */
2575 memset(header, 0, sizeof(RTSPHeader));
2576 /* skip to next line */
2577 while (*p != '\n' && *p != '\0')
2578 p++;
2579 if (*p == '\n')
2580 p++;
2581 while (*p != '\0') {
2582 p1 = strchr(p, '\n');
2583 if (!p1)
2584 break;
2585 p2 = p1;
2586 if (p2 > p && p2[-1] == '\r')
2587 p2--;
2588 /* skip empty line */
2589 if (p2 == p)
2590 break;
2591 len = p2 - p;
2592 if (len > sizeof(line) - 1)
2593 len = sizeof(line) - 1;
2594 memcpy(line, p, len);
2595 line[len] = '\0';
2596 rtsp_parse_line(header, line);
2597 p = p1 + 1;
2598 }
2599
2600 /* handle sequence number */
2601 c->seq = header->seq;
2602
611c5741 2603 if (!strcmp(cmd, "DESCRIBE"))
2effd274 2604 rtsp_cmd_describe(c, url);
611c5741 2605 else if (!strcmp(cmd, "OPTIONS"))
0df65975 2606 rtsp_cmd_options(c, url);
611c5741 2607 else if (!strcmp(cmd, "SETUP"))
2effd274 2608 rtsp_cmd_setup(c, url, header);
611c5741 2609 else if (!strcmp(cmd, "PLAY"))
2effd274 2610 rtsp_cmd_play(c, url, header);
611c5741 2611 else if (!strcmp(cmd, "PAUSE"))
2effd274 2612 rtsp_cmd_pause(c, url, header);
611c5741 2613 else if (!strcmp(cmd, "TEARDOWN"))
2effd274 2614 rtsp_cmd_teardown(c, url, header);
611c5741 2615 else
2effd274 2616 rtsp_reply_error(c, RTSP_STATUS_METHOD);
611c5741 2617
2effd274
FB
2618 the_end:
2619 len = url_close_dyn_buf(c->pb, &c->pb_buffer);
2620 c->pb = NULL; /* safety */
2621 if (len < 0) {
2622 /* XXX: cannot do more */
2623 return -1;
2624 }
2625 c->buffer_ptr = c->pb_buffer;
2626 c->buffer_end = c->pb_buffer + len;
2627 c->state = RTSPSTATE_SEND_REPLY;
2628 return 0;
2629}
2630
115329f1 2631static int prepare_sdp_description(FFStream *stream, uint8_t **pbuffer,
829ac53d 2632 struct in_addr my_ip)
2effd274 2633{
dd723472
LA
2634 AVFormatContext *avc;
2635 AVStream avs[MAX_STREAMS];
2636 int i;
115329f1 2637
dd723472
LA
2638 avc = av_alloc_format_context();
2639 if (avc == NULL) {
2effd274 2640 return -1;
dd723472
LA
2641 }
2642 if (stream->title[0] != 0) {
2643 av_strlcpy(avc->title, stream->title, sizeof(avc->title));
2644 } else {
2645 av_strlcpy(avc->title, "No Title", sizeof(avc->title));
2646 }
2647 avc->nb_streams = stream->nb_streams;
2648 if (stream->is_multicast) {
2649 snprintf(avc->filename, 1024, "rtp://%s:%d?multicast=1?ttl=%d",
2650 inet_ntoa(stream->multicast_ip),
2651 stream->multicast_port, stream->multicast_ttl);
2652 }
115329f1 2653
2effd274 2654 for(i = 0; i < stream->nb_streams; i++) {
dd723472
LA
2655 avc->streams[i] = &avs[i];
2656 avc->streams[i]->codec = stream->streams[i]->codec;
2effd274 2657 }
dd723472
LA
2658 *pbuffer = av_mallocz(2048);
2659 avf_sdp_create(&avc, 1, *pbuffer, 2048);
2660 av_free(avc);
2661
2662 return strlen(*pbuffer);
2effd274
FB
2663}
2664
0df65975
AR
2665static void rtsp_cmd_options(HTTPContext *c, const char *url)
2666{
2667// rtsp_reply_header(c, RTSP_STATUS_OK);
2668 url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", RTSP_STATUS_OK, "OK");
2669 url_fprintf(c->pb, "CSeq: %d\r\n", c->seq);
2670 url_fprintf(c->pb, "Public: %s\r\n", "OPTIONS, DESCRIBE, SETUP, TEARDOWN, PLAY, PAUSE");
2671 url_fprintf(c->pb, "\r\n");
2672}
2673
2effd274
FB
2674static void rtsp_cmd_describe(HTTPContext *c, const char *url)
2675{
2676 FFStream *stream;
2677 char path1[1024];
2678 const char *path;
0c1a9eda 2679 uint8_t *content;
829ac53d
FB
2680 int content_length, len;
2681 struct sockaddr_in my_addr;
115329f1 2682
2effd274 2683 /* find which url is asked */
6ba5cbc6 2684 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2685 path = path1;
2686 if (*path == '/')
2687 path++;
2688
2689 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
2690 if (!stream->is_feed &&
2691 stream->fmt && !strcmp(stream->fmt->name, "rtp") &&
2effd274
FB
2692 !strcmp(path, stream->filename)) {
2693 goto found;
2694 }
2695 }
2696 /* no stream found */
2697 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2698 return;
2699
2700 found:
2701 /* prepare the media description in sdp format */
829ac53d
FB
2702
2703 /* get the host IP */
2704 len = sizeof(my_addr);
2705 getsockname(c->fd, (struct sockaddr *)&my_addr, &len);
829ac53d 2706 content_length = prepare_sdp_description(stream, &content, my_addr.sin_addr);
2effd274
FB
2707 if (content_length < 0) {
2708 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2709 return;
2710 }
2711 rtsp_reply_header(c, RTSP_STATUS_OK);
2712 url_fprintf(c->pb, "Content-Type: application/sdp\r\n");
2713 url_fprintf(c->pb, "Content-Length: %d\r\n", content_length);
2714 url_fprintf(c->pb, "\r\n");
2715 put_buffer(c->pb, content, content_length);
2716}
2717
2718static HTTPContext *find_rtp_session(const char *session_id)
2719{
2720 HTTPContext *c;
2721
2722 if (session_id[0] == '\0')
2723 return NULL;
2724
2725 for(c = first_http_ctx; c != NULL; c = c->next) {
2726 if (!strcmp(c->session_id, session_id))
2727 return c;
2728 }
2729 return NULL;
2730}
2731
b29f97d1 2732static RTSPTransportField *find_transport(RTSPHeader *h, enum RTSPProtocol protocol)
2effd274
FB
2733{
2734 RTSPTransportField *th;
2735 int i;
2736
2737 for(i=0;i<h->nb_transports;i++) {
2738 th = &h->transports[i];
2739 if (th->protocol == protocol)
2740 return th;
2741 }
2742 return NULL;
2743}
2744
115329f1 2745static void rtsp_cmd_setup(HTTPContext *c, const char *url,
2effd274
FB
2746 RTSPHeader *h)
2747{
2748 FFStream *stream;
2749 int stream_index, port;
2750 char buf[1024];
2751 char path1[1024];
2752 const char *path;
2753 HTTPContext *rtp_c;
2754 RTSPTransportField *th;
2755 struct sockaddr_in dest_addr;
2756 RTSPActionServerSetup setup;
115329f1 2757
2effd274 2758 /* find which url is asked */
6ba5cbc6 2759 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2760 path = path1;
2761 if (*path == '/')
2762 path++;
2763
2764 /* now check each stream */
2765 for(stream = first_stream; stream != NULL; stream = stream->next) {
25e3e53d
LA
2766 if (!stream->is_feed &&
2767 stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
2effd274
FB
2768 /* accept aggregate filenames only if single stream */
2769 if (!strcmp(path, stream->filename)) {
2770 if (stream->nb_streams != 1) {
2771 rtsp_reply_error(c, RTSP_STATUS_AGGREGATE);
2772 return;
2773 }
2774 stream_index = 0;
2775 goto found;
2776 }
115329f1 2777
2effd274
FB
2778 for(stream_index = 0; stream_index < stream->nb_streams;
2779 stream_index++) {
115329f1 2780 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2effd274
FB
2781 stream->filename, stream_index);
2782 if (!strcmp(path, buf))
2783 goto found;
2784 }
2785 }
2786 }
2787 /* no stream found */
2788 rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */
2789 return;
2790 found:
2791
2792 /* generate session id if needed */
611c5741 2793 if (h->session_id[0] == '\0')
1df93ae9
AB
2794 snprintf(h->session_id, sizeof(h->session_id), "%08x%08x",
2795 av_random(&random_state), av_random(&random_state));
2effd274
FB
2796
2797 /* find rtp session, and create it if none found */
2798 rtp_c = find_rtp_session(h->session_id);
2799 if (!rtp_c) {
bc351386
FB
2800 /* always prefer UDP */
2801 th = find_transport(h, RTSP_PROTOCOL_RTP_UDP);
2802 if (!th) {
2803 th = find_transport(h, RTSP_PROTOCOL_RTP_TCP);
2804 if (!th) {
2805 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2806 return;
2807 }
2808 }
2809
2810 rtp_c = rtp_new_connection(&c->from_addr, stream, h->session_id,
2811 th->protocol);
2effd274
FB
2812 if (!rtp_c) {
2813 rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH);
2814 return;
2815 }
2816
2817 /* open input stream */
2818 if (open_input_stream(rtp_c, "") < 0) {
2819 rtsp_reply_error(c, RTSP_STATUS_INTERNAL);
2820 return;
2821 }
2effd274 2822 }
115329f1 2823
2effd274
FB
2824 /* test if stream is OK (test needed because several SETUP needs
2825 to be done for a given file) */
2826 if (rtp_c->stream != stream) {
2827 rtsp_reply_error(c, RTSP_STATUS_SERVICE);
2828 return;
2829 }
115329f1 2830
2effd274
FB
2831 /* test if stream is already set up */
2832 if (rtp_c->rtp_ctx[stream_index]) {
2833 rtsp_reply_error(c, RTSP_STATUS_STATE);
2834 return;
2835 }
2836
2837 /* check transport */
2838 th = find_transport(h, rtp_c->rtp_protocol);
115329f1 2839 if (!th || (th->protocol == RTSP_PROTOCOL_RTP_UDP &&
2effd274
FB
2840 th->client_port_min <= 0)) {
2841 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2842 return;
2843 }
2844
2845 /* setup default options */
2846 setup.transport_option[0] = '\0';
2847 dest_addr = rtp_c->from_addr;
2848 dest_addr.sin_port = htons(th->client_port_min);
115329f1 2849
2effd274 2850 /* setup stream */
bc351386 2851 if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr, c) < 0) {
2effd274
FB
2852 rtsp_reply_error(c, RTSP_STATUS_TRANSPORT);
2853 return;
2854 }
2855
2856 /* now everything is OK, so we can send the connection parameters */
2857 rtsp_reply_header(c, RTSP_STATUS_OK);
2858 /* session ID */
2859 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2860
2861 switch(rtp_c->rtp_protocol) {
2862 case RTSP_PROTOCOL_RTP_UDP:
2863 port = rtp_get_local_port(rtp_c->rtp_handles[stream_index]);
2864 url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;"
2865 "client_port=%d-%d;server_port=%d-%d",
2866 th->client_port_min, th->client_port_min + 1,
2867 port, port + 1);
2868 break;
2869 case RTSP_PROTOCOL_RTP_TCP:
2870 url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d",
2871 stream_index * 2, stream_index * 2 + 1);
2872 break;
2873 default:
2874 break;
2875 }
611c5741 2876 if (setup.transport_option[0] != '\0')
2effd274 2877 url_fprintf(c->pb, ";%s", setup.transport_option);
2effd274 2878 url_fprintf(c->pb, "\r\n");
115329f1 2879
2effd274
FB
2880
2881 url_fprintf(c->pb, "\r\n");
2882}
2883
2884
2885/* find an rtp connection by using the session ID. Check consistency
2886 with filename */
115329f1 2887static HTTPContext *find_rtp_session_with_url(const char *url,
2effd274
FB
2888 const char *session_id)
2889{
2890 HTTPContext *rtp_c;
2891 char path1[1024];
2892 const char *path;
94d9ad5f
GF
2893 char buf[1024];
2894 int s;
2effd274
FB
2895
2896 rtp_c = find_rtp_session(session_id);
2897 if (!rtp_c)
2898 return NULL;
2899
2900 /* find which url is asked */
6ba5cbc6 2901 url_split(NULL, 0, NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url);
2effd274
FB
2902 path = path1;
2903 if (*path == '/')
2904 path++;
94d9ad5f
GF
2905 if(!strcmp(path, rtp_c->stream->filename)) return rtp_c;
2906 for(s=0; s<rtp_c->stream->nb_streams; ++s) {
2907 snprintf(buf, sizeof(buf), "%s/streamid=%d",
2908 rtp_c->stream->filename, s);
2909 if(!strncmp(path, buf, sizeof(buf))) {
2910 // XXX: Should we reply with RTSP_STATUS_ONLY_AGGREGATE if nb_streams>1?
2911 return rtp_c;
2912 }
2913 }
2914 return NULL;
2effd274
FB
2915}
2916
2917static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h)
2918{
2919 HTTPContext *rtp_c;
2920
2921 rtp_c = find_rtp_session_with_url(url, h->session_id);
2922 if (!rtp_c) {
2923 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2924 return;
2925 }
115329f1 2926
2effd274
FB
2927 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
2928 rtp_c->state != HTTPSTATE_WAIT_FEED &&
2929 rtp_c->state != HTTPSTATE_READY) {
2930 rtsp_reply_error(c, RTSP_STATUS_STATE);
2931 return;
2932 }
2933
e240a0bb
FB
2934#if 0
2935 /* XXX: seek in stream */
2936 if (h->range_start != AV_NOPTS_VALUE) {
2937 printf("range_start=%0.3f\n", (double)h->range_start / AV_TIME_BASE);
2938 av_seek_frame(rtp_c->fmt_in, -1, h->range_start);
2939 }
2940#endif
2941
2effd274 2942 rtp_c->state = HTTPSTATE_SEND_DATA;
115329f1 2943
2effd274
FB
2944 /* now everything is OK, so we can send the connection parameters */
2945 rtsp_reply_header(c, RTSP_STATUS_OK);
2946 /* session ID */
2947 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2948 url_fprintf(c->pb, "\r\n");
2949}
2950
2951static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h)
2952{
2953 HTTPContext *rtp_c;
2954
2955 rtp_c = find_rtp_session_with_url(url, h->session_id);
2956 if (!rtp_c) {
2957 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2958 return;
2959 }
115329f1 2960
2effd274
FB
2961 if (rtp_c->state != HTTPSTATE_SEND_DATA &&
2962 rtp_c->state != HTTPSTATE_WAIT_FEED) {
2963 rtsp_reply_error(c, RTSP_STATUS_STATE);
2964 return;
2965 }
115329f1 2966
2effd274 2967 rtp_c->state = HTTPSTATE_READY;
1bc1cfdd 2968 rtp_c->first_pts = AV_NOPTS_VALUE;
2effd274
FB
2969 /* now everything is OK, so we can send the connection parameters */
2970 rtsp_reply_header(c, RTSP_STATUS_OK);
2971 /* session ID */
2972 url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id);
2973 url_fprintf(c->pb, "\r\n");
2974}
2975
2976static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h)
2977{
2978 HTTPContext *rtp_c;
b0b2faa7 2979 char session_id[32];
2effd274
FB
2980
2981 rtp_c = find_rtp_session_with_url(url, h->session_id);
2982 if (!rtp_c) {
2983 rtsp_reply_error(c, RTSP_STATUS_SESSION);
2984 return;
2985 }
115329f1 2986
f7d78f36 2987 av_strlcpy(session_id, rtp_c->session_id, sizeof(session_id));
b0b2faa7 2988
2effd274
FB
2989 /* abort the session */
2990 close_connection(rtp_c);
2991
2effd274
FB
2992 /* now everything is OK, so we can send the connection parameters */
2993 rtsp_reply_header(c, RTSP_STATUS_OK);
2994 /* session ID */
b0b2faa7 2995 url_fprintf(c->pb, "Session: %s\r\n", session_id);
2effd274
FB
2996 url_fprintf(c->pb, "\r\n");
2997}
2998
2999
3000/********************************************************************/
3001/* RTP handling */
3002
115329f1 3003static HTTPContext *rtp_new_connection(struct sockaddr_in *from_addr,
bc351386
FB
3004 FFStream *stream, const char *session_id,
3005 enum RTSPProtocol rtp_protocol)
2effd274
FB
3006{
3007 HTTPContext *c = NULL;
bc351386 3008 const char *proto_str;
115329f1 3009
2effd274
FB
3010 /* XXX: should output a warning page when coming
3011 close to the connection limit */
3012 if (nb_connections >= nb_max_connections)
3013 goto fail;
115329f1 3014
2effd274
FB
3015 /* add a new connection */
3016 c = av_mallocz(sizeof(HTTPContext));
3017 if (!c)
3018 goto fail;
115329f1 3019
2effd274
FB
3020 c->fd = -1;
3021 c->poll_entry = NULL;
6edd6884 3022 c->from_addr = *from_addr;
2effd274
FB
3023 c->buffer_size = IOBUFFER_INIT_SIZE;
3024 c->buffer = av_malloc(c->buffer_size);
3025 if (!c->buffer)
3026 goto fail;
3027 nb_connections++;
3028 c->stream = stream;
f7d78f36 3029 av_strlcpy(c->session_id, session_id, sizeof(c->session_id));
2effd274
FB
3030 c->state = HTTPSTATE_READY;
3031 c->is_packetized = 1;
bc351386
FB
3032 c->rtp_protocol = rtp_protocol;
3033
2effd274 3034 /* protocol is shown in statistics */
bc351386
FB
3035 switch(c->rtp_protocol) {
3036 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
3037 proto_str = "MCAST";
3038 break;
3039 case RTSP_PROTOCOL_RTP_UDP:
3040 proto_str = "UDP";
3041 break;
3042 case RTSP_PROTOCOL_RTP_TCP:
3043 proto_str = "TCP";
3044 break;
3045 default:
3046 proto_str = "???";
3047 break;
3048 }
f7d78f36
MR
3049 av_strlcpy(c->protocol, "RTP/", sizeof(c->protocol));
3050 av_strlcat(c->protocol, proto_str, sizeof(c->protocol));
2effd274 3051
6edd6884
FB
3052 current_bandwidth += stream->bandwidth;
3053
2effd274
FB
3054 c->next = first_http_ctx;
3055 first_http_ctx = c;
3056 return c;
115329f1 3057
2effd274
FB
3058 fail:
3059 if (c) {
3060 av_free(c->buffer);
3061 av_free(c);
3062 }
3063 return NULL;
3064}
3065
3066/* add a new RTP stream in an RTP connection (used in RTSP SETUP
bc351386 3067 command). If RTP/TCP protocol is used, TCP connection 'rtsp_c' is
2effd274 3068 used. */
115329f1 3069static int rtp_new_av_stream(HTTPContext *c,
bc351386
FB
3070 int stream_index, struct sockaddr_in *dest_addr,
3071 HTTPContext *rtsp_c)
2effd274
FB
3072{
3073 AVFormatContext *ctx;
3074 AVStream *st;
3075 char *ipaddr;
75480e86 3076 URLContext *h = NULL;
0c1a9eda 3077 uint8_t *dummy_buf;
6edd6884 3078 char buf2[32];
bc351386 3079 int max_packet_size;
115329f1 3080
2effd274 3081 /* now we can open the relevant output stream */
bc874dae 3082 ctx = av_alloc_format_context();
2effd274
FB
3083 if (!ctx)
3084 return -1;
b156b88c 3085 ctx->oformat = guess_format("rtp", NULL, NULL);
2effd274
FB
3086
3087 st = av_mallocz(sizeof(AVStream));
3088 if (!st)
3089 goto fail;
8d931070 3090 st->codec= avcodec_alloc_context();
2effd274
FB
3091 ctx->nb_streams = 1;
3092 ctx->streams[0] = st;
3093
115329f1 3094 if (!c->stream->feed ||
611c5741 3095 c->stream->feed == c->stream)
2effd274 3096 memcpy(st, c->stream->streams[stream_index], sizeof(AVStream));
611c5741 3097 else
115329f1 3098 memcpy(st,
2effd274
FB
3099 c->stream->feed->streams[c->stream->feed_streams[stream_index]],
3100 sizeof(AVStream));
57dbe08b 3101 st->priv_data = NULL;
115329f1 3102
bc351386
FB
3103 /* build destination RTP address */
3104 ipaddr = inet_ntoa(dest_addr->sin_addr);
3105
3106 switch(c->rtp_protocol) {
3107 case RTSP_PROTOCOL_RTP_UDP:
3108 case RTSP_PROTOCOL_RTP_UDP_MULTICAST:
3109 /* RTP/UDP case */
115329f1 3110
6edd6884
FB
3111 /* XXX: also pass as parameter to function ? */
3112 if (c->stream->is_multicast) {
3113 int ttl;
3114 ttl = c->stream->multicast_ttl;
3115 if (!ttl)
3116 ttl = 16;
3117 snprintf(ctx->filename, sizeof(ctx->filename),
115329f1 3118 "rtp://%s:%d?multicast=1&ttl=%d",
6edd6884
FB
3119 ipaddr, ntohs(dest_addr->sin_port), ttl);
3120 } else {
3121 snprintf(ctx->filename, sizeof(ctx->filename),
3122 "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port));
3123 }
2effd274
FB
3124
3125 if (url_open(&h, ctx->filename, URL_WRONLY) < 0)
3126 goto fail;
3127 c->rtp_handles[stream_index] = h;
bc351386
FB
3128 max_packet_size = url_get_max_packet_size(h);
3129 break;
3130 case RTSP_PROTOCOL_RTP_TCP:
3131 /* RTP/TCP case */
3132 c->rtsp_c = rtsp_c;
3133 max_packet_size = RTSP_TCP_MAX_PACKET_SIZE;
3134 break;
3135 default:
2effd274
FB
3136 goto fail;
3137 }
3138
bc351386 3139 http_log("%s:%d - - [%s] \"PLAY %s/streamid=%d %s\"\n",
115329f1
DB
3140 ipaddr, ntohs(dest_addr->sin_port),
3141 ctime1(buf2),
bc351386 3142 c->stream->filename, stream_index, c->protocol);
6edd6884 3143
2effd274 3144 /* normally, no packets should be output here, but the packet size may be checked */
bc351386 3145 if (url_open_dyn_packet_buf(&ctx->pb, max_packet_size) < 0) {
2effd274
FB
3146 /* XXX: close stream */
3147 goto fail;
3148 }
3c27199b 3149 av_set_parameters(ctx, NULL);
2effd274
FB
3150 if (av_write_header(ctx) < 0) {
3151 fail:
3152 if (h)
3153 url_close(h);
3154 av_free(ctx);
3155 return -1;
3156 }
899681cd 3157 url_close_dyn_buf(ctx->pb, &dummy_buf);
2effd274 3158 av_free(dummy_buf);
115329f1 3159
2effd274
FB
3160 c->rtp_ctx[stream_index] = ctx;
3161 return 0;
3162}
3163
3164/********************************************************************/
3165/* ffserver initialization */
3166
b29f97d1 3167static AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec)
2effd274
FB
3168{
3169 AVStream *fst;
3170
3171 fst = av_mallocz(sizeof(AVStream));
3172 if (!fst)
3173 return NULL;
8d931070 3174 fst->codec= avcodec_alloc_context();
2effd274 3175 fst->priv_data = av_mallocz(sizeof(FeedData));
01f4895c 3176 memcpy(fst->codec, codec, sizeof(AVCodecContext));
d445a7e9 3177 fst->index = stream->nb_streams;
7c054ea7 3178 av_set_pts_info(fst, 33, 1, 90000);
2effd274
FB
3179 stream->streams[stream->nb_streams++] = fst;
3180 return fst;
3181}
3182
85f07f22 3183/* return the stream number in the feed */
b29f97d1 3184static int add_av_stream(FFStream *feed, AVStream *st)
85f07f22
FB
3185{
3186 AVStream *fst;
3187 AVCodecContext *av, *av1;
3188 int i;
3189
01f4895c 3190 av = st->codec;
85f07f22
FB
3191 for(i=0;i<feed->nb_streams;i++) {
3192 st = feed->streams[i];
01f4895c 3193 av1 = st->codec;
f747e6d3
PG
3194 if (av1->codec_id == av->codec_id &&
3195 av1->codec_type == av->codec_type &&
85f07f22
FB
3196 av1->bit_rate == av->bit_rate) {
3197
3198 switch(av->codec_type) {
3199 case CODEC_TYPE_AUDIO:
3200 if (av1->channels == av->channels &&
3201 av1->sample_rate == av->sample_rate)
3202 goto found;
3203 break;
3204 case CODEC_TYPE_VIDEO:
3205 if (av1->width == av->width &&
3206 av1->height == av->height &&
c0df9d75
MN
3207 av1->time_base.den == av->time_base.den &&
3208 av1->time_base.num == av->time_base.num &&
85f07f22
FB
3209 av1->gop_size == av->gop_size)
3210 goto found;
3211 break;
f747e6d3 3212 default:
0f4e8165 3213 abort();
85f07f22
FB
3214 }
3215 }
3216 }
115329f1 3217
2effd274 3218 fst = add_av_stream1(feed, av);
85f07f22
FB
3219 if (!fst)
3220 return -1;
85f07f22
FB
3221 return feed->nb_streams - 1;
3222 found:
3223 return i;
3224}
3225
b29f97d1 3226static void remove_stream(FFStream *stream)
2effd274
FB
3227{
3228 FFStream **ps;
3229 ps = &first_stream;
3230 while (*ps != NULL) {
611c5741 3231 if (*ps == stream)
2effd274 3232 *ps = (*ps)->next;
611c5741 3233 else
2effd274 3234 ps = &(*ps)->next;
2effd274
FB
3235 }
3236}
3237
0fa45e19 3238/* specific mpeg4 handling : we extract the raw parameters */
b29f97d1 3239static void extract_mpeg4_header(AVFormatContext *infile)
0fa45e19
FB
3240{
3241 int mpeg4_count, i, size;
3242 AVPacket pkt;
3243 AVStream *st;
0c1a9eda 3244 const uint8_t *p;
0fa45e19
FB
3245
3246 mpeg4_count = 0;
3247 for(i=0;i<infile->nb_streams;i++) {
3248 st = infile->streams[i];
01f4895c
MN
3249 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3250 st->codec->extradata_size == 0) {
0fa45e19
FB
3251 mpeg4_count++;
3252 }
3253 }
3254 if (!mpeg4_count)
3255 return;
3256
d445a7e9 3257 printf("MPEG4 without extra data: trying to find header in %s\n", infile->filename);
0fa45e19
FB
3258 while (mpeg4_count > 0) {
3259 if (av_read_packet(infile, &pkt) < 0)
3260 break;
3261 st = infile->streams[pkt.stream_index];
01f4895c
MN
3262 if (st->codec->codec_id == CODEC_ID_MPEG4 &&
3263 st->codec->extradata_size == 0) {
3264 av_freep(&st->codec->extradata);
0fa45e19
FB
3265 /* fill extradata with the header */
3266 /* XXX: we make hard suppositions here ! */
3267 p = pkt.data;
3268 while (p < pkt.data + pkt.size - 4) {
3269 /* stop when vop header is found */
115329f1 3270 if (p[0] == 0x00 && p[1] == 0x00 &&
0fa45e19
FB
3271 p[2] == 0x01 && p[3] == 0xb6) {
3272 size = p - pkt.data;
750f0e1f 3273 // av_hex_dump_log(infile, AV_LOG_DEBUG, pkt.data, size);
01f4895c
MN
3274 st->codec->extradata = av_malloc(size);
3275 st->codec->extradata_size = size;
3276 memcpy(st->codec->extradata, pkt.data, size);
0fa45e19
FB
3277 break;
3278 }
3279 p++;
3280 }
3281 mpeg4_count--;
3282 }
3283 av_free_packet(&pkt);
3284 }
3285}
3286
2effd274 3287/* compute the needed AVStream for each file */
b29f97d1 3288static void build_file_streams(void)
2effd274
FB
3289{
3290 FFStream *stream, *stream_next;
3291 AVFormatContext *infile;
f61d45c9 3292 int i, ret;
2effd274
FB
3293
3294 /* gather all streams */
3295 for(stream = first_stream; stream != NULL; stream = stream_next) {
3296 stream_next = stream->next;
3297 if (stream->stream_type == STREAM_TYPE_LIVE &&
3298 !stream->feed) {
3299 /* the stream comes from a file */
3300 /* try to open the file */
3301 /* open stream */
e240a0bb 3302 stream->ap_in = av_mallocz(sizeof(AVFormatParameters));
25e3e53d 3303 if (stream->fmt && !strcmp(stream->fmt->name, "rtp")) {
e240a0bb
FB
3304 /* specific case : if transport stream output to RTP,
3305 we use a raw transport stream reader */
3306 stream->ap_in->mpeg2ts_raw = 1;
3307 stream->ap_in->mpeg2ts_compute_pcr = 1;
3308 }
115329f1 3309
f61d45c9
BC
3310 if ((ret = av_open_input_file(&infile, stream->feed_filename,
3311 stream->ifmt, 0, stream->ap_in)) < 0) {
3312 http_log("could not open %s: %d\n", stream->feed_filename, ret);
2effd274
FB
3313 /* remove stream (no need to spend more time on it) */
3314 fail:
3315 remove_stream(stream);
3316 } else {
3317 /* find all the AVStreams inside and reference them in
3318 'stream' */
3319 if (av_find_stream_info(infile) < 0) {
115329f1 3320 http_log("Could not find codec parameters from '%s'",
2effd274
FB
3321 stream->feed_filename);
3322 av_close_input_file(infile);
3323 goto fail;
3324 }
0fa45e19
FB
3325 extract_mpeg4_header(infile);
3326
611c5741 3327 for(i=0;i<infile->nb_streams;i++)
01f4895c 3328 add_av_stream1(stream, infile->streams[i]->codec);
611c5741 3329
2effd274
FB
3330 av_close_input_file(infile);
3331 }
3332 }
3333 }
3334}
3335
85f07f22 3336/* compute the needed AVStream for each feed */
b29f97d1 3337static void build_feed_streams(void)
85f07f22
FB
3338{
3339 FFStream *stream, *feed;
3340 int i;
3341
3342 /* gather all streams */
3343 for(stream = first_stream; stream != NULL; stream = stream->next) {
3344 feed = stream->feed;
3345 if (feed) {
3346 if (!stream->is_feed) {
2effd274 3347 /* we handle a stream coming from a feed */
611c5741 3348 for(i=0;i<stream->nb_streams;i++)
85f07f22 3349 stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
cde25790
PG
3350 }
3351 }
3352 }
3353
3354 /* gather all streams */
3355 for(stream = first_stream; stream != NULL; stream = stream->next) {
3356 feed = stream->feed;
3357 if (feed) {
3358 if (stream->is_feed) {
611c5741 3359 for(i=0;i<stream->nb_streams;i++)
85f07f22 3360 stream->feed_streams[i] = i;
85f07f22
FB
3361 }
3362 }
3363 }
3364
3365 /* create feed files if needed */
3366 for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
3367 int fd;
3368
59eb2ed1
PG
3369 if (url_exist(feed->feed_filename)) {
3370 /* See if it matches */
3371 AVFormatContext *s;
3372 int matches = 0;
3373
3374 if (av_open_input_file(&s, feed->feed_filename, NULL, FFM_PACKET_SIZE, NULL) >= 0) {
3375 /* Now see if it matches */
3376 if (s->nb_streams == feed->nb_stre