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ffserver_config.c
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1 /*
2  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <float.h>
22 #include "libavutil/opt.h"
23 #include "libavutil/parseutils.h"
24 #include "libavutil/avstring.h"
25 #include "libavutil/pixdesc.h"
26 #include "libavutil/avassert.h"
27 
28 #include "cmdutils.h"
29 #include "ffserver_config.h"
30 
31 #define MAX_CHILD_ARGS 64
32 
33 static int ffserver_save_avoption(const char *opt, const char *arg, int type,
35 static void vreport_config_error(const char *filename, int line_num,
36  int log_level, int *errors, const char *fmt,
37  va_list vl);
38 static void report_config_error(const char *filename, int line_num,
39  int log_level, int *errors, const char *fmt,
40  ...);
41 
42 #define ERROR(...) report_config_error(config->filename, config->line_num,\
43  AV_LOG_ERROR, &config->errors, __VA_ARGS__)
44 #define WARNING(...) report_config_error(config->filename, config->line_num,\
45  AV_LOG_WARNING, &config->warnings, __VA_ARGS__)
46 
47 /* FIXME: make ffserver work with IPv6 */
48 /* resolve host with also IP address parsing */
49 static int resolve_host(struct in_addr *sin_addr, const char *hostname)
50 {
51 
52  if (!ff_inet_aton(hostname, sin_addr)) {
53 #if HAVE_GETADDRINFO
54  struct addrinfo *ai, *cur;
55  struct addrinfo hints = { 0 };
56  hints.ai_family = AF_INET;
57  if (getaddrinfo(hostname, NULL, &hints, &ai))
58  return -1;
59  /* getaddrinfo returns a linked list of addrinfo structs.
60  * Even if we set ai_family = AF_INET above, make sure
61  * that the returned one actually is of the correct type. */
62  for (cur = ai; cur; cur = cur->ai_next) {
63  if (cur->ai_family == AF_INET) {
64  *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;
65  freeaddrinfo(ai);
66  return 0;
67  }
68  }
69  freeaddrinfo(ai);
70  return -1;
71 #else
72  struct hostent *hp;
73  hp = gethostbyname(hostname);
74  if (!hp)
75  return -1;
76  memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));
77 #endif
78  }
79  return 0;
80 }
81 
82 void ffserver_get_arg(char *buf, int buf_size, const char **pp)
83 {
84  const char *p;
85  char *q;
86  int quote = 0;
87 
88  p = *pp;
89  q = buf;
90 
91  while (av_isspace(*p)) p++;
92 
93  if (*p == '\"' || *p == '\'')
94  quote = *p++;
95 
96  while (*p != '\0') {
97  if (quote && *p == quote || !quote && av_isspace(*p))
98  break;
99  if ((q - buf) < buf_size - 1)
100  *q++ = *p;
101  p++;
102  }
103 
104  *q = '\0';
105  if (quote && *p == quote)
106  p++;
107  *pp = p;
108 }
109 
111  FFServerIPAddressACL *ext_acl,
112  const char *p, const char *filename, int line_num)
113 {
114  char arg[1024];
116  FFServerIPAddressACL *nacl;
117  FFServerIPAddressACL **naclp;
118 
119  ffserver_get_arg(arg, sizeof(arg), &p);
120  if (av_strcasecmp(arg, "allow") == 0)
121  acl.action = IP_ALLOW;
122  else if (av_strcasecmp(arg, "deny") == 0)
123  acl.action = IP_DENY;
124  else {
125  fprintf(stderr, "%s:%d: ACL action '%s' should be ALLOW or DENY.\n",
126  filename, line_num, arg);
127  goto bail;
128  }
129 
130  ffserver_get_arg(arg, sizeof(arg), &p);
131 
132  if (resolve_host(&acl.first, arg)) {
133  fprintf(stderr,
134  "%s:%d: ACL refers to invalid host or IP address '%s'\n",
135  filename, line_num, arg);
136  goto bail;
137  }
138 
139  acl.last = acl.first;
140 
141  ffserver_get_arg(arg, sizeof(arg), &p);
142 
143  if (arg[0]) {
144  if (resolve_host(&acl.last, arg)) {
145  fprintf(stderr,
146  "%s:%d: ACL refers to invalid host or IP address '%s'\n",
147  filename, line_num, arg);
148  goto bail;
149  }
150  }
151 
152  nacl = av_mallocz(sizeof(*nacl));
153  if (!nacl) {
154  fprintf(stderr, "Failed to allocate FFServerIPAddressACL\n");
155  goto bail;
156  }
157 
158  naclp = 0;
159 
160  acl.next = 0;
161  *nacl = acl;
162 
163  if (stream)
164  naclp = &stream->acl;
165  else if (feed)
166  naclp = &feed->acl;
167  else if (ext_acl)
168  naclp = &ext_acl;
169  else
170  fprintf(stderr, "%s:%d: ACL found not in <Stream> or <Feed>\n",
171  filename, line_num);
172 
173  if (naclp) {
174  while (*naclp)
175  naclp = &(*naclp)->next;
176 
177  *naclp = nacl;
178  } else
179  av_free(nacl);
180 
181 bail:
182  return;
183 
184 }
185 
186 /* add a codec and set the default parameters */
187 static void add_codec(FFServerStream *stream, AVCodecContext *av,
189 {
190  LayeredAVStream *st;
191  AVDictionary **opts, *recommended = NULL;
192  char *enc_config;
193 
194  if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
195  return;
196 
197  opts = av->codec_type == AVMEDIA_TYPE_AUDIO ?
198  &config->audio_opts : &config->video_opts;
199  av_dict_copy(&recommended, *opts, 0);
202 
203  if (av_dict_count(*opts))
205  "Something is wrong, %d options are not set!\n",
206  av_dict_count(*opts));
207 
208  if (!config->stream_use_defaults) {
209  switch(av->codec_type) {
210  case AVMEDIA_TYPE_AUDIO:
211  if (av->bit_rate == 0)
212  report_config_error(config->filename, config->line_num,
213  AV_LOG_ERROR, &config->errors,
214  "audio bit rate is not set\n");
215  if (av->sample_rate == 0)
216  report_config_error(config->filename, config->line_num,
217  AV_LOG_ERROR, &config->errors,
218  "audio sample rate is not set\n");
219  break;
220  case AVMEDIA_TYPE_VIDEO:
221  if (av->width == 0 || av->height == 0)
222  report_config_error(config->filename, config->line_num,
223  AV_LOG_ERROR, &config->errors,
224  "video size is not set\n");
225  break;
226  default:
227  av_assert0(0);
228  }
229  goto done;
230  }
231 
232  /* stream_use_defaults = true */
233 
234  /* compute default parameters */
235  switch(av->codec_type) {
236  case AVMEDIA_TYPE_AUDIO:
237  if (!av_dict_get(recommended, "b", NULL, 0)) {
238  av->bit_rate = 64000;
239  av_dict_set_int(&recommended, "b", av->bit_rate, 0);
240  WARNING("Setting default value for audio bit rate = %d. "
241  "Use NoDefaults to disable it.\n",
242  av->bit_rate);
243  }
244  if (!av_dict_get(recommended, "ar", NULL, 0)) {
245  av->sample_rate = 22050;
246  av_dict_set_int(&recommended, "ar", av->sample_rate, 0);
247  WARNING("Setting default value for audio sample rate = %d. "
248  "Use NoDefaults to disable it.\n",
249  av->sample_rate);
250  }
251  if (!av_dict_get(recommended, "ac", NULL, 0)) {
252  av->channels = 1;
253  av_dict_set_int(&recommended, "ac", av->channels, 0);
254  WARNING("Setting default value for audio channel count = %d. "
255  "Use NoDefaults to disable it.\n",
256  av->channels);
257  }
258  break;
259  case AVMEDIA_TYPE_VIDEO:
260  if (!av_dict_get(recommended, "b", NULL, 0)) {
261  av->bit_rate = 64000;
262  av_dict_set_int(&recommended, "b", av->bit_rate, 0);
263  WARNING("Setting default value for video bit rate = %d. "
264  "Use NoDefaults to disable it.\n",
265  av->bit_rate);
266  }
267  if (!av_dict_get(recommended, "time_base", NULL, 0)){
268  av->time_base.den = 5;
269  av->time_base.num = 1;
270  av_dict_set(&recommended, "time_base", "1/5", 0);
271  WARNING("Setting default value for video frame rate = %d. "
272  "Use NoDefaults to disable it.\n",
273  av->time_base.den);
274  }
275  if (!av_dict_get(recommended, "video_size", NULL, 0)) {
276  av->width = 160;
277  av->height = 128;
278  av_dict_set(&recommended, "video_size", "160x128", 0);
279  WARNING("Setting default value for video size = %dx%d. "
280  "Use NoDefaults to disable it.\n",
281  av->width, av->height);
282  }
283  /* Bitrate tolerance is less for streaming */
284  if (!av_dict_get(recommended, "bt", NULL, 0)) {
285  av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
286  (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
287  av_dict_set_int(&recommended, "bt", av->bit_rate_tolerance, 0);
288  WARNING("Setting default value for video bit rate tolerance = %d. "
289  "Use NoDefaults to disable it.\n",
290  av->bit_rate_tolerance);
291  }
292 
293  if (!av_dict_get(recommended, "rc_eq", NULL, 0)) {
294  av_dict_set(&recommended, "rc_eq", "tex^qComp", 0);
295  WARNING("Setting default value for video rate control equation = "
296  "tex^qComp. Use NoDefaults to disable it.\n");
297  }
298  if (!av_dict_get(recommended, "maxrate", NULL, 0)) {
299  av->rc_max_rate = av->bit_rate * 2;
300  av_dict_set_int(&recommended, "maxrate", av->rc_max_rate, 0);
301  WARNING("Setting default value for video max rate = %d. "
302  "Use NoDefaults to disable it.\n",
303  av->rc_max_rate);
304  }
305 
306  if (av->rc_max_rate && !av_dict_get(recommended, "bufsize", NULL, 0)) {
307  av->rc_buffer_size = av->rc_max_rate;
308  av_dict_set_int(&recommended, "bufsize", av->rc_buffer_size, 0);
309  WARNING("Setting default value for video buffer size = %d. "
310  "Use NoDefaults to disable it.\n",
311  av->rc_buffer_size);
312  }
313  break;
314  default:
315  abort();
316  }
317 
318 done:
319  st = av_mallocz(sizeof(*st));
320  if (!st)
321  return;
322  av_dict_get_string(recommended, &enc_config, '=', ',');
323  av_dict_free(&recommended);
324  st->recommended_encoder_configuration = enc_config;
325  st->codec = av;
328  stream->streams[stream->nb_streams++] = st;
329 }
330 
331 static int ffserver_set_codec(AVCodecContext *ctx, const char *codec_name,
333 {
334  int ret;
335  AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
336  if (!codec || codec->type != ctx->codec_type) {
338  &config->errors,
339  "Invalid codec name: '%s'\n", codec_name);
340  return 0;
341  }
342  if (ctx->codec_id == AV_CODEC_ID_NONE && !ctx->priv_data) {
343  if ((ret = avcodec_get_context_defaults3(ctx, codec)) < 0)
344  return ret;
345  ctx->codec = codec;
346  }
347  if (ctx->codec_id != codec->id)
349  &config->errors,
350  "Inconsistent configuration: trying to set '%s' "
351  "codec option, but '%s' codec is used previously\n",
352  codec_name, avcodec_get_name(ctx->codec_id));
353  return 0;
354 }
355 
356 static int ffserver_opt_preset(const char *arg, int type, FFServerConfig *config)
357 {
358  FILE *f=NULL;
359  char filename[1000], tmp[1000], tmp2[1000], line[1000];
360  int ret = 0;
361  AVCodecContext *avctx;
362  const AVCodec *codec;
363 
364  switch(type) {
366  avctx = config->dummy_actx;
367  break;
369  avctx = config->dummy_vctx;
370  break;
371  default:
372  av_assert0(0);
373  }
374  codec = avcodec_find_encoder(avctx->codec_id);
375 
376  if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
377  codec ? codec->name : NULL))) {
378  av_log(NULL, AV_LOG_ERROR, "File for preset '%s' not found\n", arg);
379  return AVERROR(EINVAL);
380  }
381 
382  while(!feof(f)){
383  int e= fscanf(f, "%999[^\n]\n", line) - 1;
384  if(line[0] == '#' && !e)
385  continue;
386  e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
387  if(e){
388  av_log(NULL, AV_LOG_ERROR, "%s: Invalid syntax: '%s'\n", filename,
389  line);
390  ret = AVERROR(EINVAL);
391  break;
392  }
393  if (!strcmp(tmp, "acodec") && avctx->codec_type == AVMEDIA_TYPE_AUDIO ||
394  !strcmp(tmp, "vcodec") && avctx->codec_type == AVMEDIA_TYPE_VIDEO)
395  {
396  if (ffserver_set_codec(avctx, tmp2, config) < 0)
397  break;
398  } else if (!strcmp(tmp, "scodec")) {
399  av_log(NULL, AV_LOG_ERROR, "Subtitles preset found.\n");
400  ret = AVERROR(EINVAL);
401  break;
402  } else if (ffserver_save_avoption(tmp, tmp2, type, config) < 0)
403  break;
404  }
405 
406  fclose(f);
407 
408  return ret;
409 }
410 
411 static AVOutputFormat *ffserver_guess_format(const char *short_name,
412  const char *filename,
413  const char *mime_type)
414 {
415  AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
416 
417  if (fmt) {
418  AVOutputFormat *stream_fmt;
419  char stream_format_name[64];
420 
421  snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream",
422  fmt->name);
423  stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
424 
425  if (stream_fmt)
426  fmt = stream_fmt;
427  }
428 
429  return fmt;
430 }
431 
432 static void vreport_config_error(const char *filename, int line_num,
433  int log_level, int *errors, const char *fmt,
434  va_list vl)
435 {
436  av_log(NULL, log_level, "%s:%d: ", filename, line_num);
437  av_vlog(NULL, log_level, fmt, vl);
438  if (errors)
439  (*errors)++;
440 }
441 
442 static void report_config_error(const char *filename, int line_num,
443  int log_level, int *errors,
444  const char *fmt, ...)
445 {
446  va_list vl;
447  va_start(vl, fmt);
448  vreport_config_error(filename, line_num, log_level, errors, fmt, vl);
449  va_end(vl);
450 }
451 
452 static int ffserver_set_int_param(int *dest, const char *value, int factor,
453  int min, int max, FFServerConfig *config,
454  const char *error_msg, ...)
455 {
456  int tmp;
457  char *tailp;
458  if (!value || !value[0])
459  goto error;
460  errno = 0;
461  tmp = strtol(value, &tailp, 0);
462  if (tmp < min || tmp > max)
463  goto error;
464  if (factor) {
465  if (tmp == INT_MIN || FFABS(tmp) > INT_MAX / FFABS(factor))
466  goto error;
467  tmp *= factor;
468  }
469  if (tailp[0] || errno)
470  goto error;
471  if (dest)
472  *dest = tmp;
473  return 0;
474  error:
475  if (config) {
476  va_list vl;
477  va_start(vl, error_msg);
479  &config->errors, error_msg, vl);
480  va_end(vl);
481  }
482  return AVERROR(EINVAL);
483 }
484 
485 static int ffserver_set_float_param(float *dest, const char *value,
486  float factor, float min, float max,
488  const char *error_msg, ...)
489 {
490  double tmp;
491  char *tailp;
492  if (!value || !value[0])
493  goto error;
494  errno = 0;
495  tmp = strtod(value, &tailp);
496  if (tmp < min || tmp > max)
497  goto error;
498  if (factor)
499  tmp *= factor;
500  if (tailp[0] || errno)
501  goto error;
502  if (dest)
503  *dest = tmp;
504  return 0;
505  error:
506  if (config) {
507  va_list vl;
508  va_start(vl, error_msg);
510  &config->errors, error_msg, vl);
511  va_end(vl);
512  }
513  return AVERROR(EINVAL);
514 }
515 
516 static int ffserver_save_avoption(const char *opt, const char *arg, int type,
518 {
519  static int hinted = 0;
520  int ret = 0;
522  const AVOption *o = NULL;
523  const char *option = NULL;
524  const char *codec_name = NULL;
525  char buff[1024];
527  AVDictionary **dict;
528  enum AVCodecID guessed_codec_id;
529 
530  switch (type) {
532  ctx = config->dummy_vctx;
533  dict = &config->video_opts;
534  guessed_codec_id = config->guessed_video_codec_id != AV_CODEC_ID_NONE ?
536  break;
538  ctx = config->dummy_actx;
539  dict = &config->audio_opts;
540  guessed_codec_id = config->guessed_audio_codec_id != AV_CODEC_ID_NONE ?
542  break;
543  default:
544  av_assert0(0);
545  }
546 
547  if (strchr(opt, ':')) {
548  //explicit private option
549  snprintf(buff, sizeof(buff), "%s", opt);
550  codec_name = buff;
551  if(!(option = strchr(buff, ':'))){
552  report_config_error(config->filename, config->line_num,
553  AV_LOG_ERROR, &config->errors,
554  "Syntax error. Unmatched ':'\n");
555  return -1;
556 
557  }
558  buff[option - buff] = '\0';
559  option++;
560  if ((ret = ffserver_set_codec(ctx, codec_name, config)) < 0)
561  return ret;
562  if (!ctx->codec || !ctx->priv_data)
563  return -1;
564  } else {
565  option = opt;
566  }
567 
568  o = av_opt_find(ctx, option, NULL, type | AV_OPT_FLAG_ENCODING_PARAM,
570  if (!o &&
571  (!strcmp(option, "time_base") || !strcmp(option, "pixel_format") ||
572  !strcmp(option, "video_size") || !strcmp(option, "codec_tag")))
573  o = av_opt_find(ctx, option, NULL, 0, 0);
574  if (!o) {
576  &config->errors, "Option not found: '%s'\n", opt);
577  if (!hinted && ctx->codec_id == AV_CODEC_ID_NONE) {
578  hinted = 1;
579  report_config_error(config->filename, config->line_num,
580  AV_LOG_ERROR, NULL, "If '%s' is a codec private"
581  "option, then prefix it with codec name, for "
582  "example '%s:%s %s' or define codec earlier.\n",
583  opt, avcodec_get_name(guessed_codec_id) ,opt,
584  arg);
585  }
586  } else if ((ret = av_opt_set(ctx, option, arg, AV_OPT_SEARCH_CHILDREN)) < 0) {
588  &config->errors, "Invalid value for option %s (%s): %s\n", opt,
589  arg, av_err2str(ret));
590  } else if ((e = av_dict_get(*dict, option, NULL, 0))) {
591  if ((o->type == AV_OPT_TYPE_FLAGS) && arg &&
592  (arg[0] == '+' || arg[0] == '-'))
593  return av_dict_set(dict, option, arg, AV_DICT_APPEND);
595  &config->errors, "Redeclaring value of option '%s'."
596  "Previous value was: '%s'.\n", opt, e->value);
597  } else if (av_dict_set(dict, option, arg, 0) < 0) {
598  return AVERROR(ENOMEM);
599  }
600  return 0;
601 }
602 
603 static int ffserver_save_avoption_int(const char *opt, int64_t arg,
604  int type, FFServerConfig *config)
605 {
606  char buf[22];
607  snprintf(buf, sizeof(buf), "%"PRId64, arg);
608  return ffserver_save_avoption(opt, buf, type, config);
609 }
610 
612  const char **p)
613 {
614  int val;
615  char arg[1024];
616  if (!av_strcasecmp(cmd, "Port") || !av_strcasecmp(cmd, "HTTPPort")) {
617  if (!av_strcasecmp(cmd, "Port"))
618  WARNING("Port option is deprecated. Use HTTPPort instead.\n");
619  ffserver_get_arg(arg, sizeof(arg), p);
620  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
621  "Invalid port: %s\n", arg);
622  if (val < 1024)
623  WARNING("Trying to use IETF assigned system port: '%d'\n", val);
624  config->http_addr.sin_port = htons(val);
625  } else if (!av_strcasecmp(cmd, "HTTPBindAddress") ||
626  !av_strcasecmp(cmd, "BindAddress")) {
627  if (!av_strcasecmp(cmd, "BindAddress"))
628  WARNING("BindAddress option is deprecated. Use HTTPBindAddress "
629  "instead.\n");
630  ffserver_get_arg(arg, sizeof(arg), p);
631  if (resolve_host(&config->http_addr.sin_addr, arg))
632  ERROR("Invalid host/IP address: '%s'\n", arg);
633  } else if (!av_strcasecmp(cmd, "NoDaemon")) {
634  WARNING("NoDaemon option has no effect. You should remove it.\n");
635  } else if (!av_strcasecmp(cmd, "RTSPPort")) {
636  ffserver_get_arg(arg, sizeof(arg), p);
637  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
638  "Invalid port: %s\n", arg);
639  config->rtsp_addr.sin_port = htons(val);
640  } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
641  ffserver_get_arg(arg, sizeof(arg), p);
642  if (resolve_host(&config->rtsp_addr.sin_addr, arg))
643  ERROR("Invalid host/IP address: %s\n", arg);
644  } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
645  ffserver_get_arg(arg, sizeof(arg), p);
646  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
647  "Invalid MaxHTTPConnections: %s\n", arg);
648  config->nb_max_http_connections = val;
649  if (config->nb_max_connections > config->nb_max_http_connections) {
650  ERROR("Inconsistent configuration: MaxClients(%d) > "
651  "MaxHTTPConnections(%d)\n", config->nb_max_connections,
652  config->nb_max_http_connections);
653  }
654  } else if (!av_strcasecmp(cmd, "MaxClients")) {
655  ffserver_get_arg(arg, sizeof(arg), p);
656  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
657  "Invalid MaxClients: '%s'\n", arg);
658  config->nb_max_connections = val;
659  if (config->nb_max_connections > config->nb_max_http_connections) {
660  ERROR("Inconsistent configuration: MaxClients(%d) > "
661  "MaxHTTPConnections(%d)\n", config->nb_max_connections,
662  config->nb_max_http_connections);
663  }
664  } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
665  int64_t llval;
666  char *tailp;
667  ffserver_get_arg(arg, sizeof(arg), p);
668  errno = 0;
669  llval = strtoll(arg, &tailp, 10);
670  if (llval < 10 || llval > 10000000 || tailp[0] || errno)
671  ERROR("Invalid MaxBandwidth: '%s'\n", arg);
672  else
673  config->max_bandwidth = llval;
674  } else if (!av_strcasecmp(cmd, "CustomLog")) {
675  if (!config->debug) {
676  ffserver_get_arg(config->logfilename, sizeof(config->logfilename),
677  p);
678  }
679  } else if (!av_strcasecmp(cmd, "LoadModule")) {
680  ERROR("Loadable modules are no longer supported\n");
681  } else if (!av_strcasecmp(cmd, "NoDefaults")) {
682  config->use_defaults = 0;
683  } else if (!av_strcasecmp(cmd, "UseDefaults")) {
684  config->use_defaults = 1;
685  } else
686  ERROR("Incorrect keyword: '%s'\n", cmd);
687  return 0;
688 }
689 
690 static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd,
691  const char **p, FFServerStream **pfeed)
692 {
693  FFServerStream *feed;
694  char arg[1024];
695  av_assert0(pfeed);
696  feed = *pfeed;
697  if (!av_strcasecmp(cmd, "<Feed")) {
698  char *q;
699  FFServerStream *s;
700  feed = av_mallocz(sizeof(FFServerStream));
701  if (!feed)
702  return AVERROR(ENOMEM);
703  ffserver_get_arg(feed->filename, sizeof(feed->filename), p);
704  q = strrchr(feed->filename, '>');
705  if (*q)
706  *q = '\0';
707 
708  for (s = config->first_feed; s; s = s->next) {
709  if (!strcmp(feed->filename, s->filename))
710  ERROR("Feed '%s' already registered\n", s->filename);
711  }
712 
713  feed->fmt = av_guess_format("ffm", NULL, NULL);
714  /* default feed file */
715  snprintf(feed->feed_filename, sizeof(feed->feed_filename),
716  "/tmp/%s.ffm", feed->filename);
717  feed->feed_max_size = 5 * 1024 * 1024;
718  feed->is_feed = 1;
719  feed->feed = feed; /* self feeding :-) */
720  *pfeed = feed;
721  return 0;
722  }
723  av_assert0(feed);
724  if (!av_strcasecmp(cmd, "Launch")) {
725  int i;
726 
727  feed->child_argv = av_mallocz_array(MAX_CHILD_ARGS, sizeof(char *));
728  if (!feed->child_argv)
729  return AVERROR(ENOMEM);
730  for (i = 0; i < MAX_CHILD_ARGS - 2; i++) {
731  ffserver_get_arg(arg, sizeof(arg), p);
732  if (!arg[0])
733  break;
734 
735  feed->child_argv[i] = av_strdup(arg);
736  if (!feed->child_argv[i])
737  return AVERROR(ENOMEM);
738  }
739 
740  feed->child_argv[i] =
741  av_asprintf("http://%s:%d/%s",
742  (config->http_addr.sin_addr.s_addr == INADDR_ANY) ?
743  "127.0.0.1" : inet_ntoa(config->http_addr.sin_addr),
744  ntohs(config->http_addr.sin_port), feed->filename);
745  if (!feed->child_argv[i])
746  return AVERROR(ENOMEM);
747  } else if (!av_strcasecmp(cmd, "ACL")) {
748  ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename,
749  config->line_num);
750  } else if (!av_strcasecmp(cmd, "File") ||
751  !av_strcasecmp(cmd, "ReadOnlyFile")) {
752  ffserver_get_arg(feed->feed_filename, sizeof(feed->feed_filename), p);
753  feed->readonly = !av_strcasecmp(cmd, "ReadOnlyFile");
754  } else if (!av_strcasecmp(cmd, "Truncate")) {
755  ffserver_get_arg(arg, sizeof(arg), p);
756  /* assume Truncate is true in case no argument is specified */
757  if (!arg[0]) {
758  feed->truncate = 1;
759  } else {
760  WARNING("Truncate N syntax in configuration file is deprecated. "
761  "Use Truncate alone with no arguments.\n");
762  feed->truncate = strtod(arg, NULL);
763  }
764  } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
765  char *p1;
766  double fsize;
767 
768  ffserver_get_arg(arg, sizeof(arg), p);
769  p1 = arg;
770  fsize = strtod(p1, &p1);
771  switch(av_toupper(*p1)) {
772  case 'K':
773  fsize *= 1024;
774  break;
775  case 'M':
776  fsize *= 1024 * 1024;
777  break;
778  case 'G':
779  fsize *= 1024 * 1024 * 1024;
780  break;
781  default:
782  ERROR("Invalid file size: '%s'\n", arg);
783  break;
784  }
785  feed->feed_max_size = (int64_t)fsize;
786  if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
787  ERROR("Feed max file size is too small. Must be at least %d.\n",
788  FFM_PACKET_SIZE*4);
789  }
790  } else if (!av_strcasecmp(cmd, "</Feed>")) {
791  *pfeed = NULL;
792  } else {
793  ERROR("Invalid entry '%s' inside <Feed></Feed>\n", cmd);
794  }
795  return 0;
796 }
797 
799  const char **p,
800  FFServerStream **pstream)
801 {
802  char arg[1024], arg2[1024];
803  FFServerStream *stream;
804  int val;
805 
806  av_assert0(pstream);
807  stream = *pstream;
808 
809  if (!av_strcasecmp(cmd, "<Stream")) {
810  char *q;
811  FFServerStream *s;
812  stream = av_mallocz(sizeof(FFServerStream));
813  if (!stream)
814  return AVERROR(ENOMEM);
817  if (!config->dummy_vctx || !config->dummy_actx) {
818  av_free(stream);
821  return AVERROR(ENOMEM);
822  }
825  ffserver_get_arg(stream->filename, sizeof(stream->filename), p);
826  q = strrchr(stream->filename, '>');
827  if (q)
828  *q = '\0';
829 
830  for (s = config->first_stream; s; s = s->next) {
831  if (!strcmp(stream->filename, s->filename))
832  ERROR("Stream '%s' already registered\n", s->filename);
833  }
834 
835  stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
836  if (stream->fmt) {
837  config->guessed_audio_codec_id = stream->fmt->audio_codec;
838  config->guessed_video_codec_id = stream->fmt->video_codec;
839  } else {
842  }
843  config->stream_use_defaults = config->use_defaults;
844  *pstream = stream;
845  return 0;
846  }
847  av_assert0(stream);
848  if (!av_strcasecmp(cmd, "Feed")) {
849  FFServerStream *sfeed;
850  ffserver_get_arg(arg, sizeof(arg), p);
851  sfeed = config->first_feed;
852  while (sfeed) {
853  if (!strcmp(sfeed->filename, arg))
854  break;
855  sfeed = sfeed->next_feed;
856  }
857  if (!sfeed)
858  ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg,
859  stream->filename);
860  else
861  stream->feed = sfeed;
862  } else if (!av_strcasecmp(cmd, "Format")) {
863  ffserver_get_arg(arg, sizeof(arg), p);
864  if (!strcmp(arg, "status")) {
866  stream->fmt = NULL;
867  } else {
868  stream->stream_type = STREAM_TYPE_LIVE;
869  /* JPEG cannot be used here, so use single frame MJPEG */
870  if (!strcmp(arg, "jpeg")) {
871  strcpy(arg, "singlejpeg");
872  stream->single_frame=1;
873  }
874  stream->fmt = ffserver_guess_format(arg, NULL, NULL);
875  if (!stream->fmt)
876  ERROR("Unknown Format: '%s'\n", arg);
877  }
878  if (stream->fmt) {
879  config->guessed_audio_codec_id = stream->fmt->audio_codec;
880  config->guessed_video_codec_id = stream->fmt->video_codec;
881  }
882  } else if (!av_strcasecmp(cmd, "InputFormat")) {
883  ffserver_get_arg(arg, sizeof(arg), p);
884  stream->ifmt = av_find_input_format(arg);
885  if (!stream->ifmt)
886  ERROR("Unknown input format: '%s'\n", arg);
887  } else if (!av_strcasecmp(cmd, "FaviconURL")) {
888  if (stream->stream_type == STREAM_TYPE_STATUS)
890  sizeof(stream->feed_filename), p);
891  else
892  ERROR("FaviconURL only permitted for status streams\n");
893  } else if (!av_strcasecmp(cmd, "Author") ||
894  !av_strcasecmp(cmd, "Comment") ||
895  !av_strcasecmp(cmd, "Copyright") ||
896  !av_strcasecmp(cmd, "Title")) {
897  char key[32];
898  int i;
899  ffserver_get_arg(arg, sizeof(arg), p);
900  for (i = 0; i < strlen(cmd); i++)
901  key[i] = av_tolower(cmd[i]);
902  key[i] = 0;
903  WARNING("Deprecated '%s' option in configuration file. Use "
904  "'Metadata %s VALUE' instead.\n", cmd, key);
905  if (av_dict_set(&stream->metadata, key, arg, 0) < 0)
906  goto nomem;
907  } else if (!av_strcasecmp(cmd, "Metadata")) {
908  ffserver_get_arg(arg, sizeof(arg), p);
909  ffserver_get_arg(arg2, sizeof(arg2), p);
910  if (av_dict_set(&stream->metadata, arg, arg2, 0) < 0)
911  goto nomem;
912  } else if (!av_strcasecmp(cmd, "Preroll")) {
913  ffserver_get_arg(arg, sizeof(arg), p);
914  stream->prebuffer = atof(arg) * 1000;
915  } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
916  stream->send_on_key = 1;
917  } else if (!av_strcasecmp(cmd, "AudioCodec")) {
918  ffserver_get_arg(arg, sizeof(arg), p);
919  ffserver_set_codec(config->dummy_actx, arg, config);
920  } else if (!av_strcasecmp(cmd, "VideoCodec")) {
921  ffserver_get_arg(arg, sizeof(arg), p);
922  ffserver_set_codec(config->dummy_vctx, arg, config);
923  } else if (!av_strcasecmp(cmd, "MaxTime")) {
924  ffserver_get_arg(arg, sizeof(arg), p);
925  stream->max_time = atof(arg) * 1000;
926  } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
927  float f;
928  ffserver_get_arg(arg, sizeof(arg), p);
929  ffserver_set_float_param(&f, arg, 1000, -FLT_MAX, FLT_MAX, config,
930  "Invalid %s: '%s'\n", cmd, arg);
931  if (ffserver_save_avoption_int("b", (int64_t)lrintf(f),
932  AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
933  goto nomem;
934  } else if (!av_strcasecmp(cmd, "AudioChannels")) {
935  ffserver_get_arg(arg, sizeof(arg), p);
936  if (ffserver_save_avoption("ac", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
937  goto nomem;
938  } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
939  ffserver_get_arg(arg, sizeof(arg), p);
940  if (ffserver_save_avoption("ar", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
941  goto nomem;
942  } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
943  int minrate, maxrate;
944  char *dash;
945  ffserver_get_arg(arg, sizeof(arg), p);
946  dash = strchr(arg, '-');
947  if (dash) {
948  *dash = '\0';
949  dash++;
950  if (ffserver_set_int_param(&minrate, arg, 1000, 0, INT_MAX, config, "Invalid %s: '%s'", cmd, arg) >= 0 &&
951  ffserver_set_int_param(&maxrate, dash, 1000, 0, INT_MAX, config, "Invalid %s: '%s'", cmd, arg) >= 0) {
952  if (ffserver_save_avoption_int("minrate", minrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0 ||
953  ffserver_save_avoption_int("maxrate", maxrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
954  goto nomem;
955  }
956  } else
957  ERROR("Incorrect format for VideoBitRateRange. It should be "
958  "<min>-<max>: '%s'.\n", arg);
959  } else if (!av_strcasecmp(cmd, "Debug")) {
960  ffserver_get_arg(arg, sizeof(arg), p);
961  if (ffserver_save_avoption("debug", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 ||
962  ffserver_save_avoption("debug", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
963  goto nomem;
964  } else if (!av_strcasecmp(cmd, "Strict")) {
965  ffserver_get_arg(arg, sizeof(arg), p);
966  if (ffserver_save_avoption("strict", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 ||
967  ffserver_save_avoption("strict", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
968  goto nomem;
969  } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
970  ffserver_get_arg(arg, sizeof(arg), p);
971  ffserver_set_int_param(&val, arg, 8*1024, 0, INT_MAX, config,
972  "Invalid %s: '%s'", cmd, arg);
973  if (ffserver_save_avoption_int("bufsize", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
974  goto nomem;
975  } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
976  ffserver_get_arg(arg, sizeof(arg), p);
977  ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
978  "Invalid %s: '%s'", cmd, arg);
979  if (ffserver_save_avoption_int("bt", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
980  goto nomem;
981  } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
982  ffserver_get_arg(arg, sizeof(arg), p);
983  ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
984  "Invalid %s: '%s'", cmd, arg);
985  if (ffserver_save_avoption_int("b", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
986  goto nomem;
987  } else if (!av_strcasecmp(cmd, "VideoSize")) {
988  int ret, w, h;
989  ffserver_get_arg(arg, sizeof(arg), p);
990  ret = av_parse_video_size(&w, &h, arg);
991  if (ret < 0)
992  ERROR("Invalid video size '%s'\n", arg);
993  else {
994  if (w % 2 || h % 2)
995  WARNING("Image size is not a multiple of 2\n");
996  if (ffserver_save_avoption("video_size", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
997  goto nomem;
998  }
999  } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
1000  ffserver_get_arg(&arg[2], sizeof(arg) - 2, p);
1001  arg[0] = '1'; arg[1] = '/';
1002  if (ffserver_save_avoption("time_base", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1003  goto nomem;
1004  } else if (!av_strcasecmp(cmd, "PixelFormat")) {
1005  enum AVPixelFormat pix_fmt;
1006  ffserver_get_arg(arg, sizeof(arg), p);
1007  pix_fmt = av_get_pix_fmt(arg);
1008  if (pix_fmt == AV_PIX_FMT_NONE)
1009  ERROR("Unknown pixel format: '%s'\n", arg);
1010  else if (ffserver_save_avoption("pixel_format", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1011  goto nomem;
1012  } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
1013  ffserver_get_arg(arg, sizeof(arg), p);
1014  if (ffserver_save_avoption("g", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1015  goto nomem;
1016  } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
1017  if (ffserver_save_avoption("g", "1", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1018  goto nomem;
1019  } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
1020  if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1021  goto nomem;
1022  } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
1023  if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0 || //FIXME remove
1024  ffserver_save_avoption("flags", "+mv4", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1025  goto nomem;
1026  } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
1027  !av_strcasecmp(cmd, "AVOptionAudio")) {
1028  int ret;
1029  ffserver_get_arg(arg, sizeof(arg), p);
1030  ffserver_get_arg(arg2, sizeof(arg2), p);
1031  if (!av_strcasecmp(cmd, "AVOptionVideo"))
1033  config);
1034  else
1036  config);
1037  if (ret < 0)
1038  goto nomem;
1039  } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
1040  !av_strcasecmp(cmd, "AVPresetAudio")) {
1041  ffserver_get_arg(arg, sizeof(arg), p);
1042  if (!av_strcasecmp(cmd, "AVPresetVideo"))
1044  else
1046  } else if (!av_strcasecmp(cmd, "VideoTag")) {
1047  ffserver_get_arg(arg, sizeof(arg), p);
1048  if (strlen(arg) == 4 &&
1049  ffserver_save_avoption_int("codec_tag",
1050  MKTAG(arg[0], arg[1], arg[2], arg[3]),
1051  AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1052  goto nomem;
1053  } else if (!av_strcasecmp(cmd, "BitExact")) {
1054  config->bitexact = 1;
1055  if (ffserver_save_avoption("flags", "+bitexact", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1056  goto nomem;
1057  } else if (!av_strcasecmp(cmd, "DctFastint")) {
1058  if (ffserver_save_avoption("dct", "fastint", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1059  goto nomem;
1060  } else if (!av_strcasecmp(cmd, "IdctSimple")) {
1061  if (ffserver_save_avoption("idct", "simple", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1062  goto nomem;
1063  } else if (!av_strcasecmp(cmd, "Qscale")) {
1064  ffserver_get_arg(arg, sizeof(arg), p);
1065  ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1066  "Invalid Qscale: '%s'\n", arg);
1067  if (ffserver_save_avoption("flags", "+qscale", AV_OPT_FLAG_VIDEO_PARAM, config) < 0 ||
1068  ffserver_save_avoption_int("global_quality", FF_QP2LAMBDA * val,
1069  AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1070  goto nomem;
1071  } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
1072  ffserver_get_arg(arg, sizeof(arg), p);
1073  if (ffserver_save_avoption("qdiff", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1074  goto nomem;
1075  } else if (!av_strcasecmp(cmd, "VideoQMax")) {
1076  ffserver_get_arg(arg, sizeof(arg), p);
1077  if (ffserver_save_avoption("qmax", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1078  goto nomem;
1079  } else if (!av_strcasecmp(cmd, "VideoQMin")) {
1080  ffserver_get_arg(arg, sizeof(arg), p);
1081  if (ffserver_save_avoption("qmin", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1082  goto nomem;
1083  } else if (!av_strcasecmp(cmd, "LumiMask")) {
1084  ffserver_get_arg(arg, sizeof(arg), p);
1085  if (ffserver_save_avoption("lumi_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1086  goto nomem;
1087  } else if (!av_strcasecmp(cmd, "DarkMask")) {
1088  ffserver_get_arg(arg, sizeof(arg), p);
1089  if (ffserver_save_avoption("dark_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1090  goto nomem;
1091  } else if (!av_strcasecmp(cmd, "NoVideo")) {
1092  config->no_video = 1;
1093  } else if (!av_strcasecmp(cmd, "NoAudio")) {
1094  config->no_audio = 1;
1095  } else if (!av_strcasecmp(cmd, "ACL")) {
1096  ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename,
1097  config->line_num);
1098  } else if (!av_strcasecmp(cmd, "DynamicACL")) {
1099  ffserver_get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), p);
1100  } else if (!av_strcasecmp(cmd, "RTSPOption")) {
1101  ffserver_get_arg(arg, sizeof(arg), p);
1102  av_freep(&stream->rtsp_option);
1103  stream->rtsp_option = av_strdup(arg);
1104  } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
1105  ffserver_get_arg(arg, sizeof(arg), p);
1106  if (resolve_host(&stream->multicast_ip, arg))
1107  ERROR("Invalid host/IP address: '%s'\n", arg);
1108  stream->is_multicast = 1;
1109  stream->loop = 1; /* default is looping */
1110  } else if (!av_strcasecmp(cmd, "MulticastPort")) {
1111  ffserver_get_arg(arg, sizeof(arg), p);
1112  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
1113  "Invalid MulticastPort: '%s'\n", arg);
1114  stream->multicast_port = val;
1115  } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
1116  ffserver_get_arg(arg, sizeof(arg), p);
1117  ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1118  "Invalid MulticastTTL: '%s'\n", arg);
1119  stream->multicast_ttl = val;
1120  } else if (!av_strcasecmp(cmd, "NoLoop")) {
1121  stream->loop = 0;
1122  } else if (!av_strcasecmp(cmd, "</Stream>")) {
1123  config->stream_use_defaults &= 1;
1124  if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm")) {
1125  if (config->dummy_actx->codec_id == AV_CODEC_ID_NONE)
1126  config->dummy_actx->codec_id = config->guessed_audio_codec_id;
1127  if (!config->no_audio &&
1128  config->dummy_actx->codec_id != AV_CODEC_ID_NONE) {
1130  add_codec(stream, audio_enc, config);
1131  }
1132  if (config->dummy_vctx->codec_id == AV_CODEC_ID_NONE)
1133  config->dummy_vctx->codec_id = config->guessed_video_codec_id;
1134  if (!config->no_video &&
1135  config->dummy_vctx->codec_id != AV_CODEC_ID_NONE) {
1137  add_codec(stream, video_enc, config);
1138  }
1139  }
1140  av_dict_free(&config->video_opts);
1141  av_dict_free(&config->audio_opts);
1142  avcodec_free_context(&config->dummy_vctx);
1143  avcodec_free_context(&config->dummy_actx);
1144  config->no_video = 0;
1145  config->no_audio = 0;
1146  *pstream = NULL;
1147  } else if (!av_strcasecmp(cmd, "File") ||
1148  !av_strcasecmp(cmd, "ReadOnlyFile")) {
1149  ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename),
1150  p);
1151  } else if (!av_strcasecmp(cmd, "UseDefaults")) {
1152  if (config->stream_use_defaults > 1)
1153  WARNING("Multiple UseDefaults/NoDefaults entries.\n");
1154  config->stream_use_defaults = 3;
1155  } else if (!av_strcasecmp(cmd, "NoDefaults")) {
1156  if (config->stream_use_defaults > 1)
1157  WARNING("Multiple UseDefaults/NoDefaults entries.\n");
1158  config->stream_use_defaults = 2;
1159  } else {
1160  ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);
1161  }
1162  return 0;
1163  nomem:
1164  av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");
1165  av_dict_free(&config->video_opts);
1166  av_dict_free(&config->audio_opts);
1167  avcodec_free_context(&config->dummy_vctx);
1168  avcodec_free_context(&config->dummy_actx);
1169  return AVERROR(ENOMEM);
1170 }
1171 
1173  const char *cmd, const char **p,
1174  FFServerStream **predirect)
1175 {
1176  FFServerStream *redirect;
1177  av_assert0(predirect);
1178  redirect = *predirect;
1179 
1180  if (!av_strcasecmp(cmd, "<Redirect")) {
1181  char *q;
1182  redirect = av_mallocz(sizeof(FFServerStream));
1183  if (!redirect)
1184  return AVERROR(ENOMEM);
1185 
1186  ffserver_get_arg(redirect->filename, sizeof(redirect->filename), p);
1187  q = strrchr(redirect->filename, '>');
1188  if (*q)
1189  *q = '\0';
1190  redirect->stream_type = STREAM_TYPE_REDIRECT;
1191  *predirect = redirect;
1192  return 0;
1193  }
1194  av_assert0(redirect);
1195  if (!av_strcasecmp(cmd, "URL")) {
1196  ffserver_get_arg(redirect->feed_filename,
1197  sizeof(redirect->feed_filename), p);
1198  } else if (!av_strcasecmp(cmd, "</Redirect>")) {
1199  if (!redirect->feed_filename[0])
1200  ERROR("No URL found for <Redirect>\n");
1201  *predirect = NULL;
1202  } else {
1203  ERROR("Invalid entry '%s' inside <Redirect></Redirect>\n", cmd);
1204  }
1205  return 0;
1206 }
1207 
1208 int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)
1209 {
1210  FILE *f;
1211  char line[1024];
1212  char cmd[64];
1213  const char *p;
1214  FFServerStream **last_stream, *stream = NULL, *redirect = NULL;
1215  FFServerStream **last_feed, *feed = NULL;
1216  int ret = 0;
1217 
1218  av_assert0(config);
1219 
1220  f = fopen(filename, "r");
1221  if (!f) {
1222  ret = AVERROR(errno);
1224  "Could not open the configuration file '%s'\n", filename);
1225  return ret;
1226  }
1227 
1228  config->first_stream = NULL;
1229  config->first_feed = NULL;
1230  config->errors = config->warnings = 0;
1231 
1232  last_stream = &config->first_stream;
1233  last_feed = &config->first_feed;
1234 
1235  config->line_num = 0;
1236  while (fgets(line, sizeof(line), f) != NULL) {
1237  config->line_num++;
1238  p = line;
1239  while (av_isspace(*p))
1240  p++;
1241  if (*p == '\0' || *p == '#')
1242  continue;
1243 
1244  ffserver_get_arg(cmd, sizeof(cmd), &p);
1245 
1246  if (feed || !av_strcasecmp(cmd, "<Feed")) {
1247  int opening = !av_strcasecmp(cmd, "<Feed");
1248  if (opening && (stream || feed || redirect)) {
1249  ERROR("Already in a tag\n");
1250  } else {
1251  ret = ffserver_parse_config_feed(config, cmd, &p, &feed);
1252  if (ret < 0)
1253  break;
1254  if (opening) {
1255  /* add in stream & feed list */
1256  *last_stream = feed;
1257  *last_feed = feed;
1258  last_stream = &feed->next;
1259  last_feed = &feed->next_feed;
1260  }
1261  }
1262  } else if (stream || !av_strcasecmp(cmd, "<Stream")) {
1263  int opening = !av_strcasecmp(cmd, "<Stream");
1264  if (opening && (stream || feed || redirect)) {
1265  ERROR("Already in a tag\n");
1266  } else {
1267  ret = ffserver_parse_config_stream(config, cmd, &p, &stream);
1268  if (ret < 0)
1269  break;
1270  if (opening) {
1271  /* add in stream list */
1272  *last_stream = stream;
1273  last_stream = &stream->next;
1274  }
1275  }
1276  } else if (redirect || !av_strcasecmp(cmd, "<Redirect")) {
1277  int opening = !av_strcasecmp(cmd, "<Redirect");
1278  if (opening && (stream || feed || redirect))
1279  ERROR("Already in a tag\n");
1280  else {
1281  ret = ffserver_parse_config_redirect(config, cmd, &p,
1282  &redirect);
1283  if (ret < 0)
1284  break;
1285  if (opening) {
1286  /* add in stream list */
1287  *last_stream = redirect;
1288  last_stream = &redirect->next;
1289  }
1290  }
1291  } else {
1292  ffserver_parse_config_global(config, cmd, &p);
1293  }
1294  }
1295  if (stream || feed || redirect)
1296  ERROR("Missing closing </%s> tag\n",
1297  stream ? "Stream" : (feed ? "Feed" : "Redirect"));
1298 
1299  fclose(f);
1300  if (ret < 0)
1301  return ret;
1302  if (config->errors)
1303  return AVERROR(EINVAL);
1304  else
1305  return 0;
1306 }
1307 
1308 #undef ERROR
1309 #undef WARNING
1310 
1311 void ffserver_free_child_args(void *argsp)
1312 {
1313  int i;
1314  char **args;
1315  if (!argsp)
1316  return;
1317  args = *(char ***)argsp;
1318  if (!args)
1319  return;
1320  for (i = 0; i < MAX_CHILD_ARGS; i++)
1321  av_free(args[i]);
1322  av_freep(argsp);
1323 }
struct in_addr last
#define NULL
Definition: coverity.c:32
const struct AVCodec * codec
Definition: avcodec.h:1511
int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)
const char const char void * val
Definition: avisynth_c.h:771
const char * s
Definition: avisynth_c.h:768
static enum AVPixelFormat pix_fmt
struct sockaddr_in http_addr
static void add_codec(FFServerStream *stream, AVCodecContext *av, FFServerConfig *config)
static void report_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt,...)
AVCodec * avcodec_find_encoder(enum AVCodecID id)
Find a registered encoder with a matching codec ID.
Definition: utils.c:1232
AVOption.
Definition: opt.h:246
FFServerIPAddressACL * acl
int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str)
Parse str and put in width_ptr and height_ptr the detected values.
Definition: parseutils.c:148
static int ffserver_set_float_param(float *dest, const char *value, float factor, float min, float max, FFServerConfig *config, const char *error_msg,...)
const char * fmt
Definition: avisynth_c.h:769
unsigned int nb_max_connections
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
int64_t bit_rate
the average bitrate
Definition: avcodec.h:1552
#define FFM_PACKET_SIZE
static FFServerConfig config
Definition: ffserver.c:193
enum AVCodecID video_codec
default video codec
Definition: avformat.h:518
int num
Numerator.
Definition: rational.h:59
#define AV_OPT_FLAG_AUDIO_PARAM
Definition: opt.h:278
int av_dict_count(const AVDictionary *m)
Get number of entries in dictionary.
Definition: dict.c:35
static av_const int av_isspace(int c)
Locale-independent conversion of ASCII isspace.
Definition: avstring.h:222
int av_dict_get_string(const AVDictionary *m, char **buffer, const char key_val_sep, const char pairs_sep)
Get dictionary entries as a string.
Definition: dict.c:230
AVInputFormat * ifmt
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
enum AVMediaType type
Definition: avcodec.h:3378
const char * key
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:236
#define freeaddrinfo
Definition: network.h:209
AVCodec.
Definition: avcodec.h:3365
AVCodecContext * dummy_vctx
AVRational time_base
This is the fundamental unit of time (in seconds) in terms of which frame timestamps are represented...
Definition: avcodec.h:1624
AVCodecContext * dummy_actx
struct FFServerStream * next
void ffserver_free_child_args(void *argsp)
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int bit_rate_tolerance
number of bits the bitstream is allowed to diverge from the reference.
Definition: avcodec.h:1560
AVOutputFormat * fmt
enum AVCodecID guessed_video_codec_id
uint64_t max_bandwidth
enum AVCodecID guessed_audio_codec_id
AVCodecParameters * codecpar
AVOptions.
AVCodecParameters * avcodec_parameters_alloc(void)
Allocate a new AVCodecParameters and set its fields to default values (unknown/invalid/0).
Definition: utils.c:2210
char logfilename[1024]
#define ERROR(...)
double strtod(const char *, char **)
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
AVDictionary * metadata
#define lrintf(x)
Definition: libm_mips.h:70
#define av_log(a,...)
#define AV_OPT_FLAG_ENCODING_PARAM
a generic parameter which can be set by the user for muxing or encoding
Definition: opt.h:276
AVCodec * avcodec_find_encoder_by_name(const char *name)
Find a registered encoder with the specified name.
Definition: utils.c:1237
static av_const int av_tolower(int c)
Locale-independent conversion of ASCII characters to lowercase.
Definition: avstring.h:241
enum AVCodecID id
Definition: avcodec.h:3379
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:215
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define AVERROR(e)
Definition: error.h:43
#define MAX_CHILD_ARGS
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
const char * arg
Definition: jacosubdec.c:66
enum FFServerStreamType stream_type
Definition: graph2dot.c:48
char dynamic_acl[1024]
static int ffserver_set_codec(AVCodecContext *ctx, const char *codec_name, FFServerConfig *config)
simple assert() macros that are a bit more flexible than ISO C assert().
static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd, const char **p, FFServerStream **pfeed)
const char * name
Name of the codec implementation.
Definition: avcodec.h:3372
#define FFMAX(a, b)
Definition: common.h:94
#define WARNING(...)
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2360
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:113
const AVOption * av_opt_find(void *obj, const char *name, const char *unit, int opt_flags, int search_flags)
Look for an option in an object.
Definition: opt.c:1594
AVDictionary * opts
Definition: movenc.c:50
AVInputFormat * av_find_input_format(const char *short_name)
Find AVInputFormat based on the short name of the input format.
Definition: format.c:164
static int ffserver_parse_config_global(FFServerConfig *config, const char *cmd, const char **p)
char feed_filename[1024]
struct FFServerStream * next_feed
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:213
AVCodecContext * avcodec_alloc_context3(const AVCodec *codec)
Allocate an AVCodecContext and set its fields to default values.
Definition: options.c:157
#define AV_OPT_SEARCH_CHILDREN
Search in possible children of the given object first.
Definition: opt.h:554
int ff_inet_aton(const char *str, struct in_addr *add)
int width
picture width / height.
Definition: avcodec.h:1674
static int resolve_host(struct in_addr *sin_addr, const char *hostname)
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
AVCodecContext * codec
AVS_Value args
Definition: avisynth_c.h:699
const char * name
Definition: avformat.h:507
void ffserver_get_arg(char *buf, int buf_size, const char **pp)
struct FFServerIPAddressACL * next
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
AVFormatContext * ctx
Definition: movenc.c:48
AVDictionary * video_opts
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
Definition: common.h:72
#define AV_DICT_APPEND
If the entry already exists, append to it.
Definition: dict.h:80
static int ffserver_save_avoption_int(const char *opt, int64_t arg, int type, FFServerConfig *config)
AVOutputFormat * av_guess_format(const char *short_name, const char *filename, const char *mime_type)
Return the output format in the list of registered output formats which best matches the provided par...
Definition: format.c:98
int av_opt_set_dict2(void *obj, AVDictionary **options, int search_flags)
Set all the options from a given dictionary on an object.
Definition: opt.c:1564
static void error(const char *err)
#define FF_ARRAY_ELEMS(a)
const char * avcodec_get_name(enum AVCodecID id)
Get the name of a codec.
Definition: utils.c:1270
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
enum AVMediaType codec_type
Definition: avcodec.h:1510
static void vreport_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, va_list vl)
void avcodec_free_context(AVCodecContext **avctx)
Free the codec context and everything associated with it and write NULL to the provided pointer...
Definition: options.c:172
enum AVCodecID codec_id
Definition: avcodec.h:1512
int sample_rate
samples per second
Definition: avcodec.h:2157
char filename[1024]
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:279
main external API structure.
Definition: avcodec.h:1502
AVDictionary * audio_opts
struct sockaddr_in rtsp_addr
void * buf
Definition: avisynth_c.h:690
GLint GLenum type
Definition: opengl_enc.c:105
static int ffserver_opt_preset(const char *arg, int type, FFServerConfig *config)
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
FILE * get_preset_file(char *filename, size_t filename_size, const char *preset_name, int is_path, const char *codec_name)
Get a file corresponding to a preset file.
Definition: cmdutils.c:1945
static av_const int av_toupper(int c)
Locale-independent conversion of ASCII characters to uppercase.
Definition: avstring.h:231
option
Definition: libkvazaar.c:282
int avcodec_parameters_from_context(AVCodecParameters *par, const AVCodecContext *codec)
Fill the parameters struct based on the values from the supplied codec context.
Definition: utils.c:2249
void av_vlog(void *avcl, int level, const char *fmt, va_list vl)
Send the specified message to the log if the level is less than or equal to the current av_log_level...
Definition: log.c:379
This holds the stream parameters for an AVStream, it cannot be a AVStream because AVStreams cannot be...
LayeredAVStream * streams[FFSERVER_MAX_STREAMS]
static const int factor[16]
Definition: vf_pp7.c:75
#define snprintf
Definition: snprintf.h:34
misc parsing utilities
FFServerStream * first_feed
static int ffserver_parse_config_redirect(FFServerConfig *config, const char *cmd, const char **p, FFServerStream **predirect)
static int ffserver_set_int_param(int *dest, const char *value, int factor, int min, int max, FFServerConfig *config, const char *error_msg,...)
struct FFServerStream * feed
#define getaddrinfo
Definition: network.h:208
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
Convenience wrapper for av_dict_set that converts the value to a string and stores it...
Definition: dict.c:147
struct addrinfo * ai_next
Definition: network.h:136
void ffserver_parse_acl_row(FFServerStream *stream, FFServerStream *feed, FFServerIPAddressACL *ext_acl, const char *p, const char *filename, int line_num)
static AVOutputFormat * ffserver_guess_format(const char *short_name, const char *filename, const char *mime_type)
int den
Denominator.
Definition: rational.h:60
int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec)
Definition: options.c:151
void * priv_data
Definition: avcodec.h:1529
char * recommended_encoder_configuration
#define av_free(p)
char * value
Definition: dict.h:87
enum AVOptionType type
Definition: opt.h:260
int channels
number of audio channels
Definition: avcodec.h:2158
enum AVCodecID audio_codec
default audio codec
Definition: avformat.h:517
#define FF_QP2LAMBDA
factor to convert from H.263 QP to lambda
Definition: avutil.h:227
static int ffserver_save_avoption(const char *opt, const char *arg, int type, FFServerConfig *config)
#define av_freep(p)
struct in_addr multicast_ip
static int64_t fsize(FILE *f)
Definition: audiomatch.c:28
enum AVPixelFormat av_get_pix_fmt(const char *name)
Return the pixel format corresponding to name.
Definition: pixdesc.c:2291
FFServerStream * first_stream
#define MKTAG(a, b, c, d)
Definition: common.h:366
struct sockaddr * ai_addr
Definition: network.h:134
float min
AVPixelFormat
Pixel format.
Definition: pixfmt.h:60
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:449
unsigned int nb_max_http_connections
struct in_addr first
enum FFServerIPAddressAction action
int64_t rc_max_rate
maximum bitrate
Definition: avcodec.h:2375
static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd, const char **p, FFServerStream **pstream)
void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.c:191
static uint8_t tmp[11]
Definition: aes_ctr.c:26
int ai_family
Definition: network.h:130