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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->rc_eq = av_strdup("tex^qComp");
295  av_dict_set(&recommended, "rc_eq", "tex^qComp", 0);
296  WARNING("Setting default value for video rate control equation = "
297  "%s. Use NoDefaults to disable it.\n",
298  av->rc_eq);
299  }
300  if (!av_dict_get(recommended, "maxrate", NULL, 0)) {
301  av->rc_max_rate = av->bit_rate * 2;
302  av_dict_set_int(&recommended, "maxrate", av->rc_max_rate, 0);
303  WARNING("Setting default value for video max rate = %d. "
304  "Use NoDefaults to disable it.\n",
305  av->rc_max_rate);
306  }
307 
308  if (av->rc_max_rate && !av_dict_get(recommended, "bufsize", NULL, 0)) {
309  av->rc_buffer_size = av->rc_max_rate;
310  av_dict_set_int(&recommended, "bufsize", av->rc_buffer_size, 0);
311  WARNING("Setting default value for video buffer size = %d. "
312  "Use NoDefaults to disable it.\n",
313  av->rc_buffer_size);
314  }
315  break;
316  default:
317  abort();
318  }
319 
320 done:
321  st = av_mallocz(sizeof(*st));
322  if (!st)
323  return;
324  av_dict_get_string(recommended, &enc_config, '=', ',');
325  av_dict_free(&recommended);
326  st->recommended_encoder_configuration = enc_config;
327  st->codec = av;
330  stream->streams[stream->nb_streams++] = st;
331 }
332 
333 static int ffserver_set_codec(AVCodecContext *ctx, const char *codec_name,
335 {
336  int ret;
337  AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
338  if (!codec || codec->type != ctx->codec_type) {
340  &config->errors,
341  "Invalid codec name: '%s'\n", codec_name);
342  return 0;
343  }
344  if (ctx->codec_id == AV_CODEC_ID_NONE && !ctx->priv_data) {
345  if ((ret = avcodec_get_context_defaults3(ctx, codec)) < 0)
346  return ret;
347  ctx->codec = codec;
348  }
349  if (ctx->codec_id != codec->id)
351  &config->errors,
352  "Inconsistent configuration: trying to set '%s' "
353  "codec option, but '%s' codec is used previously\n",
354  codec_name, avcodec_get_name(ctx->codec_id));
355  return 0;
356 }
357 
358 static int ffserver_opt_preset(const char *arg, int type, FFServerConfig *config)
359 {
360  FILE *f=NULL;
361  char filename[1000], tmp[1000], tmp2[1000], line[1000];
362  int ret = 0;
363  AVCodecContext *avctx;
364  const AVCodec *codec;
365 
366  switch(type) {
368  avctx = config->dummy_actx;
369  break;
371  avctx = config->dummy_vctx;
372  break;
373  default:
374  av_assert0(0);
375  }
376  codec = avcodec_find_encoder(avctx->codec_id);
377 
378  if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
379  codec ? codec->name : NULL))) {
380  av_log(NULL, AV_LOG_ERROR, "File for preset '%s' not found\n", arg);
381  return AVERROR(EINVAL);
382  }
383 
384  while(!feof(f)){
385  int e= fscanf(f, "%999[^\n]\n", line) - 1;
386  if(line[0] == '#' && !e)
387  continue;
388  e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;
389  if(e){
390  av_log(NULL, AV_LOG_ERROR, "%s: Invalid syntax: '%s'\n", filename,
391  line);
392  ret = AVERROR(EINVAL);
393  break;
394  }
395  if (!strcmp(tmp, "acodec") && avctx->codec_type == AVMEDIA_TYPE_AUDIO ||
396  !strcmp(tmp, "vcodec") && avctx->codec_type == AVMEDIA_TYPE_VIDEO)
397  {
398  if (ffserver_set_codec(avctx, tmp2, config) < 0)
399  break;
400  } else if (!strcmp(tmp, "scodec")) {
401  av_log(NULL, AV_LOG_ERROR, "Subtitles preset found.\n");
402  ret = AVERROR(EINVAL);
403  break;
404  } else if (ffserver_save_avoption(tmp, tmp2, type, config) < 0)
405  break;
406  }
407 
408  fclose(f);
409 
410  return ret;
411 }
412 
413 static AVOutputFormat *ffserver_guess_format(const char *short_name,
414  const char *filename,
415  const char *mime_type)
416 {
417  AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);
418 
419  if (fmt) {
420  AVOutputFormat *stream_fmt;
421  char stream_format_name[64];
422 
423  snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream",
424  fmt->name);
425  stream_fmt = av_guess_format(stream_format_name, NULL, NULL);
426 
427  if (stream_fmt)
428  fmt = stream_fmt;
429  }
430 
431  return fmt;
432 }
433 
434 static void vreport_config_error(const char *filename, int line_num,
435  int log_level, int *errors, const char *fmt,
436  va_list vl)
437 {
438  av_log(NULL, log_level, "%s:%d: ", filename, line_num);
439  av_vlog(NULL, log_level, fmt, vl);
440  if (errors)
441  (*errors)++;
442 }
443 
444 static void report_config_error(const char *filename, int line_num,
445  int log_level, int *errors,
446  const char *fmt, ...)
447 {
448  va_list vl;
449  va_start(vl, fmt);
450  vreport_config_error(filename, line_num, log_level, errors, fmt, vl);
451  va_end(vl);
452 }
453 
454 static int ffserver_set_int_param(int *dest, const char *value, int factor,
455  int min, int max, FFServerConfig *config,
456  const char *error_msg, ...)
457 {
458  int tmp;
459  char *tailp;
460  if (!value || !value[0])
461  goto error;
462  errno = 0;
463  tmp = strtol(value, &tailp, 0);
464  if (tmp < min || tmp > max)
465  goto error;
466  if (factor) {
467  if (tmp == INT_MIN || FFABS(tmp) > INT_MAX / FFABS(factor))
468  goto error;
469  tmp *= factor;
470  }
471  if (tailp[0] || errno)
472  goto error;
473  if (dest)
474  *dest = tmp;
475  return 0;
476  error:
477  if (config) {
478  va_list vl;
479  va_start(vl, error_msg);
481  &config->errors, error_msg, vl);
482  va_end(vl);
483  }
484  return AVERROR(EINVAL);
485 }
486 
487 static int ffserver_set_float_param(float *dest, const char *value,
488  float factor, float min, float max,
490  const char *error_msg, ...)
491 {
492  double tmp;
493  char *tailp;
494  if (!value || !value[0])
495  goto error;
496  errno = 0;
497  tmp = strtod(value, &tailp);
498  if (tmp < min || tmp > max)
499  goto error;
500  if (factor)
501  tmp *= factor;
502  if (tailp[0] || errno)
503  goto error;
504  if (dest)
505  *dest = tmp;
506  return 0;
507  error:
508  if (config) {
509  va_list vl;
510  va_start(vl, error_msg);
512  &config->errors, error_msg, vl);
513  va_end(vl);
514  }
515  return AVERROR(EINVAL);
516 }
517 
518 static int ffserver_save_avoption(const char *opt, const char *arg, int type,
520 {
521  static int hinted = 0;
522  int ret = 0;
524  const AVOption *o = NULL;
525  const char *option = NULL;
526  const char *codec_name = NULL;
527  char buff[1024];
529  AVDictionary **dict;
530  enum AVCodecID guessed_codec_id;
531 
532  switch (type) {
534  ctx = config->dummy_vctx;
535  dict = &config->video_opts;
536  guessed_codec_id = config->guessed_video_codec_id != AV_CODEC_ID_NONE ?
538  break;
540  ctx = config->dummy_actx;
541  dict = &config->audio_opts;
542  guessed_codec_id = config->guessed_audio_codec_id != AV_CODEC_ID_NONE ?
544  break;
545  default:
546  av_assert0(0);
547  }
548 
549  if (strchr(opt, ':')) {
550  //explicit private option
551  snprintf(buff, sizeof(buff), "%s", opt);
552  codec_name = buff;
553  if(!(option = strchr(buff, ':'))){
554  report_config_error(config->filename, config->line_num,
555  AV_LOG_ERROR, &config->errors,
556  "Syntax error. Unmatched ':'\n");
557  return -1;
558 
559  }
560  buff[option - buff] = '\0';
561  option++;
562  if ((ret = ffserver_set_codec(ctx, codec_name, config)) < 0)
563  return ret;
564  if (!ctx->codec || !ctx->priv_data)
565  return -1;
566  } else {
567  option = opt;
568  }
569 
570  o = av_opt_find(ctx, option, NULL, type | AV_OPT_FLAG_ENCODING_PARAM,
572  if (!o &&
573  (!strcmp(option, "time_base") || !strcmp(option, "pixel_format") ||
574  !strcmp(option, "video_size") || !strcmp(option, "codec_tag")))
575  o = av_opt_find(ctx, option, NULL, 0, 0);
576  if (!o) {
578  &config->errors, "Option not found: '%s'\n", opt);
579  if (!hinted && ctx->codec_id == AV_CODEC_ID_NONE) {
580  hinted = 1;
581  report_config_error(config->filename, config->line_num,
582  AV_LOG_ERROR, NULL, "If '%s' is a codec private"
583  "option, then prefix it with codec name, for "
584  "example '%s:%s %s' or define codec earlier.\n",
585  opt, avcodec_get_name(guessed_codec_id) ,opt,
586  arg);
587  }
588  } else if ((ret = av_opt_set(ctx, option, arg, AV_OPT_SEARCH_CHILDREN)) < 0) {
590  &config->errors, "Invalid value for option %s (%s): %s\n", opt,
591  arg, av_err2str(ret));
592  } else if ((e = av_dict_get(*dict, option, NULL, 0))) {
593  if ((o->type == AV_OPT_TYPE_FLAGS) && arg &&
594  (arg[0] == '+' || arg[0] == '-'))
595  return av_dict_set(dict, option, arg, AV_DICT_APPEND);
597  &config->errors, "Redeclaring value of option '%s'."
598  "Previous value was: '%s'.\n", opt, e->value);
599  } else if (av_dict_set(dict, option, arg, 0) < 0) {
600  return AVERROR(ENOMEM);
601  }
602  return 0;
603 }
604 
605 static int ffserver_save_avoption_int(const char *opt, int64_t arg,
606  int type, FFServerConfig *config)
607 {
608  char buf[22];
609  snprintf(buf, sizeof(buf), "%"PRId64, arg);
610  return ffserver_save_avoption(opt, buf, type, config);
611 }
612 
614  const char **p)
615 {
616  int val;
617  char arg[1024];
618  if (!av_strcasecmp(cmd, "Port") || !av_strcasecmp(cmd, "HTTPPort")) {
619  if (!av_strcasecmp(cmd, "Port"))
620  WARNING("Port option is deprecated. Use HTTPPort instead.\n");
621  ffserver_get_arg(arg, sizeof(arg), p);
622  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
623  "Invalid port: %s\n", arg);
624  if (val < 1024)
625  WARNING("Trying to use IETF assigned system port: '%d'\n", val);
626  config->http_addr.sin_port = htons(val);
627  } else if (!av_strcasecmp(cmd, "HTTPBindAddress") ||
628  !av_strcasecmp(cmd, "BindAddress")) {
629  if (!av_strcasecmp(cmd, "BindAddress"))
630  WARNING("BindAddress option is deprecated. Use HTTPBindAddress "
631  "instead.\n");
632  ffserver_get_arg(arg, sizeof(arg), p);
633  if (resolve_host(&config->http_addr.sin_addr, arg))
634  ERROR("Invalid host/IP address: '%s'\n", arg);
635  } else if (!av_strcasecmp(cmd, "NoDaemon")) {
636  WARNING("NoDaemon option has no effect. You should remove it.\n");
637  } else if (!av_strcasecmp(cmd, "RTSPPort")) {
638  ffserver_get_arg(arg, sizeof(arg), p);
639  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
640  "Invalid port: %s\n", arg);
641  config->rtsp_addr.sin_port = htons(val);
642  } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
643  ffserver_get_arg(arg, sizeof(arg), p);
644  if (resolve_host(&config->rtsp_addr.sin_addr, arg))
645  ERROR("Invalid host/IP address: %s\n", arg);
646  } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
647  ffserver_get_arg(arg, sizeof(arg), p);
648  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
649  "Invalid MaxHTTPConnections: %s\n", arg);
650  config->nb_max_http_connections = val;
651  if (config->nb_max_connections > config->nb_max_http_connections) {
652  ERROR("Inconsistent configuration: MaxClients(%d) > "
653  "MaxHTTPConnections(%d)\n", config->nb_max_connections,
654  config->nb_max_http_connections);
655  }
656  } else if (!av_strcasecmp(cmd, "MaxClients")) {
657  ffserver_get_arg(arg, sizeof(arg), p);
658  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
659  "Invalid MaxClients: '%s'\n", arg);
660  config->nb_max_connections = val;
661  if (config->nb_max_connections > config->nb_max_http_connections) {
662  ERROR("Inconsistent configuration: MaxClients(%d) > "
663  "MaxHTTPConnections(%d)\n", config->nb_max_connections,
664  config->nb_max_http_connections);
665  }
666  } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
667  int64_t llval;
668  char *tailp;
669  ffserver_get_arg(arg, sizeof(arg), p);
670  errno = 0;
671  llval = strtoll(arg, &tailp, 10);
672  if (llval < 10 || llval > 10000000 || tailp[0] || errno)
673  ERROR("Invalid MaxBandwidth: '%s'\n", arg);
674  else
675  config->max_bandwidth = llval;
676  } else if (!av_strcasecmp(cmd, "CustomLog")) {
677  if (!config->debug) {
678  ffserver_get_arg(config->logfilename, sizeof(config->logfilename),
679  p);
680  }
681  } else if (!av_strcasecmp(cmd, "LoadModule")) {
682  ERROR("Loadable modules are no longer supported\n");
683  } else if (!av_strcasecmp(cmd, "NoDefaults")) {
684  config->use_defaults = 0;
685  } else if (!av_strcasecmp(cmd, "UseDefaults")) {
686  config->use_defaults = 1;
687  } else
688  ERROR("Incorrect keyword: '%s'\n", cmd);
689  return 0;
690 }
691 
692 static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd,
693  const char **p, FFServerStream **pfeed)
694 {
695  FFServerStream *feed;
696  char arg[1024];
697  av_assert0(pfeed);
698  feed = *pfeed;
699  if (!av_strcasecmp(cmd, "<Feed")) {
700  char *q;
701  FFServerStream *s;
702  feed = av_mallocz(sizeof(FFServerStream));
703  if (!feed)
704  return AVERROR(ENOMEM);
705  ffserver_get_arg(feed->filename, sizeof(feed->filename), p);
706  q = strrchr(feed->filename, '>');
707  if (*q)
708  *q = '\0';
709 
710  for (s = config->first_feed; s; s = s->next) {
711  if (!strcmp(feed->filename, s->filename))
712  ERROR("Feed '%s' already registered\n", s->filename);
713  }
714 
715  feed->fmt = av_guess_format("ffm", NULL, NULL);
716  /* default feed file */
717  snprintf(feed->feed_filename, sizeof(feed->feed_filename),
718  "/tmp/%s.ffm", feed->filename);
719  feed->feed_max_size = 5 * 1024 * 1024;
720  feed->is_feed = 1;
721  feed->feed = feed; /* self feeding :-) */
722  *pfeed = feed;
723  return 0;
724  }
725  av_assert0(feed);
726  if (!av_strcasecmp(cmd, "Launch")) {
727  int i;
728 
729  feed->child_argv = av_mallocz_array(MAX_CHILD_ARGS, sizeof(char *));
730  if (!feed->child_argv)
731  return AVERROR(ENOMEM);
732  for (i = 0; i < MAX_CHILD_ARGS - 2; i++) {
733  ffserver_get_arg(arg, sizeof(arg), p);
734  if (!arg[0])
735  break;
736 
737  feed->child_argv[i] = av_strdup(arg);
738  if (!feed->child_argv[i])
739  return AVERROR(ENOMEM);
740  }
741 
742  feed->child_argv[i] =
743  av_asprintf("http://%s:%d/%s",
744  (config->http_addr.sin_addr.s_addr == INADDR_ANY) ?
745  "127.0.0.1" : inet_ntoa(config->http_addr.sin_addr),
746  ntohs(config->http_addr.sin_port), feed->filename);
747  if (!feed->child_argv[i])
748  return AVERROR(ENOMEM);
749  } else if (!av_strcasecmp(cmd, "ACL")) {
750  ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename,
751  config->line_num);
752  } else if (!av_strcasecmp(cmd, "File") ||
753  !av_strcasecmp(cmd, "ReadOnlyFile")) {
754  ffserver_get_arg(feed->feed_filename, sizeof(feed->feed_filename), p);
755  feed->readonly = !av_strcasecmp(cmd, "ReadOnlyFile");
756  } else if (!av_strcasecmp(cmd, "Truncate")) {
757  ffserver_get_arg(arg, sizeof(arg), p);
758  /* assume Truncate is true in case no argument is specified */
759  if (!arg[0]) {
760  feed->truncate = 1;
761  } else {
762  WARNING("Truncate N syntax in configuration file is deprecated. "
763  "Use Truncate alone with no arguments.\n");
764  feed->truncate = strtod(arg, NULL);
765  }
766  } else if (!av_strcasecmp(cmd, "FileMaxSize")) {
767  char *p1;
768  double fsize;
769 
770  ffserver_get_arg(arg, sizeof(arg), p);
771  p1 = arg;
772  fsize = strtod(p1, &p1);
773  switch(av_toupper(*p1)) {
774  case 'K':
775  fsize *= 1024;
776  break;
777  case 'M':
778  fsize *= 1024 * 1024;
779  break;
780  case 'G':
781  fsize *= 1024 * 1024 * 1024;
782  break;
783  default:
784  ERROR("Invalid file size: '%s'\n", arg);
785  break;
786  }
787  feed->feed_max_size = (int64_t)fsize;
788  if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
789  ERROR("Feed max file size is too small. Must be at least %d.\n",
790  FFM_PACKET_SIZE*4);
791  }
792  } else if (!av_strcasecmp(cmd, "</Feed>")) {
793  *pfeed = NULL;
794  } else {
795  ERROR("Invalid entry '%s' inside <Feed></Feed>\n", cmd);
796  }
797  return 0;
798 }
799 
801  const char **p,
802  FFServerStream **pstream)
803 {
804  char arg[1024], arg2[1024];
805  FFServerStream *stream;
806  int val;
807 
808  av_assert0(pstream);
809  stream = *pstream;
810 
811  if (!av_strcasecmp(cmd, "<Stream")) {
812  char *q;
813  FFServerStream *s;
814  stream = av_mallocz(sizeof(FFServerStream));
815  if (!stream)
816  return AVERROR(ENOMEM);
819  if (!config->dummy_vctx || !config->dummy_actx) {
820  av_free(stream);
823  return AVERROR(ENOMEM);
824  }
827  ffserver_get_arg(stream->filename, sizeof(stream->filename), p);
828  q = strrchr(stream->filename, '>');
829  if (q)
830  *q = '\0';
831 
832  for (s = config->first_stream; s; s = s->next) {
833  if (!strcmp(stream->filename, s->filename))
834  ERROR("Stream '%s' already registered\n", s->filename);
835  }
836 
837  stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);
838  if (stream->fmt) {
839  config->guessed_audio_codec_id = stream->fmt->audio_codec;
840  config->guessed_video_codec_id = stream->fmt->video_codec;
841  } else {
844  }
845  config->stream_use_defaults = config->use_defaults;
846  *pstream = stream;
847  return 0;
848  }
849  av_assert0(stream);
850  if (!av_strcasecmp(cmd, "Feed")) {
851  FFServerStream *sfeed;
852  ffserver_get_arg(arg, sizeof(arg), p);
853  sfeed = config->first_feed;
854  while (sfeed) {
855  if (!strcmp(sfeed->filename, arg))
856  break;
857  sfeed = sfeed->next_feed;
858  }
859  if (!sfeed)
860  ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg,
861  stream->filename);
862  else
863  stream->feed = sfeed;
864  } else if (!av_strcasecmp(cmd, "Format")) {
865  ffserver_get_arg(arg, sizeof(arg), p);
866  if (!strcmp(arg, "status")) {
868  stream->fmt = NULL;
869  } else {
870  stream->stream_type = STREAM_TYPE_LIVE;
871  /* JPEG cannot be used here, so use single frame MJPEG */
872  if (!strcmp(arg, "jpeg")) {
873  strcpy(arg, "singlejpeg");
874  stream->single_frame=1;
875  }
876  stream->fmt = ffserver_guess_format(arg, NULL, NULL);
877  if (!stream->fmt)
878  ERROR("Unknown Format: '%s'\n", arg);
879  }
880  if (stream->fmt) {
881  config->guessed_audio_codec_id = stream->fmt->audio_codec;
882  config->guessed_video_codec_id = stream->fmt->video_codec;
883  }
884  } else if (!av_strcasecmp(cmd, "InputFormat")) {
885  ffserver_get_arg(arg, sizeof(arg), p);
886  stream->ifmt = av_find_input_format(arg);
887  if (!stream->ifmt)
888  ERROR("Unknown input format: '%s'\n", arg);
889  } else if (!av_strcasecmp(cmd, "FaviconURL")) {
890  if (stream->stream_type == STREAM_TYPE_STATUS)
892  sizeof(stream->feed_filename), p);
893  else
894  ERROR("FaviconURL only permitted for status streams\n");
895  } else if (!av_strcasecmp(cmd, "Author") ||
896  !av_strcasecmp(cmd, "Comment") ||
897  !av_strcasecmp(cmd, "Copyright") ||
898  !av_strcasecmp(cmd, "Title")) {
899  char key[32];
900  int i;
901  ffserver_get_arg(arg, sizeof(arg), p);
902  for (i = 0; i < strlen(cmd); i++)
903  key[i] = av_tolower(cmd[i]);
904  key[i] = 0;
905  WARNING("Deprecated '%s' option in configuration file. Use "
906  "'Metadata %s VALUE' instead.\n", cmd, key);
907  if (av_dict_set(&stream->metadata, key, arg, 0) < 0)
908  goto nomem;
909  } else if (!av_strcasecmp(cmd, "Metadata")) {
910  ffserver_get_arg(arg, sizeof(arg), p);
911  ffserver_get_arg(arg2, sizeof(arg2), p);
912  if (av_dict_set(&stream->metadata, arg, arg2, 0) < 0)
913  goto nomem;
914  } else if (!av_strcasecmp(cmd, "Preroll")) {
915  ffserver_get_arg(arg, sizeof(arg), p);
916  stream->prebuffer = atof(arg) * 1000;
917  } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {
918  stream->send_on_key = 1;
919  } else if (!av_strcasecmp(cmd, "AudioCodec")) {
920  ffserver_get_arg(arg, sizeof(arg), p);
921  ffserver_set_codec(config->dummy_actx, arg, config);
922  } else if (!av_strcasecmp(cmd, "VideoCodec")) {
923  ffserver_get_arg(arg, sizeof(arg), p);
924  ffserver_set_codec(config->dummy_vctx, arg, config);
925  } else if (!av_strcasecmp(cmd, "MaxTime")) {
926  ffserver_get_arg(arg, sizeof(arg), p);
927  stream->max_time = atof(arg) * 1000;
928  } else if (!av_strcasecmp(cmd, "AudioBitRate")) {
929  float f;
930  ffserver_get_arg(arg, sizeof(arg), p);
931  ffserver_set_float_param(&f, arg, 1000, -FLT_MAX, FLT_MAX, config,
932  "Invalid %s: '%s'\n", cmd, arg);
933  if (ffserver_save_avoption_int("b", (int64_t)lrintf(f),
934  AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
935  goto nomem;
936  } else if (!av_strcasecmp(cmd, "AudioChannels")) {
937  ffserver_get_arg(arg, sizeof(arg), p);
938  if (ffserver_save_avoption("ac", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
939  goto nomem;
940  } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
941  ffserver_get_arg(arg, sizeof(arg), p);
942  if (ffserver_save_avoption("ar", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
943  goto nomem;
944  } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
945  int minrate, maxrate;
946  char *dash;
947  ffserver_get_arg(arg, sizeof(arg), p);
948  dash = strchr(arg, '-');
949  if (dash) {
950  *dash = '\0';
951  dash++;
952  if (ffserver_set_int_param(&minrate, arg, 1000, 0, INT_MAX, config, "Invalid %s: '%s'", cmd, arg) >= 0 &&
953  ffserver_set_int_param(&maxrate, dash, 1000, 0, INT_MAX, config, "Invalid %s: '%s'", cmd, arg) >= 0) {
954  if (ffserver_save_avoption_int("minrate", minrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0 ||
955  ffserver_save_avoption_int("maxrate", maxrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
956  goto nomem;
957  }
958  } else
959  ERROR("Incorrect format for VideoBitRateRange. It should be "
960  "<min>-<max>: '%s'.\n", arg);
961  } else if (!av_strcasecmp(cmd, "Debug")) {
962  ffserver_get_arg(arg, sizeof(arg), p);
963  if (ffserver_save_avoption("debug", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 ||
964  ffserver_save_avoption("debug", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
965  goto nomem;
966  } else if (!av_strcasecmp(cmd, "Strict")) {
967  ffserver_get_arg(arg, sizeof(arg), p);
968  if (ffserver_save_avoption("strict", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 ||
969  ffserver_save_avoption("strict", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
970  goto nomem;
971  } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
972  ffserver_get_arg(arg, sizeof(arg), p);
973  ffserver_set_int_param(&val, arg, 8*1024, 0, INT_MAX, config,
974  "Invalid %s: '%s'", cmd, arg);
975  if (ffserver_save_avoption_int("bufsize", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
976  goto nomem;
977  } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
978  ffserver_get_arg(arg, sizeof(arg), p);
979  ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
980  "Invalid %s: '%s'", cmd, arg);
981  if (ffserver_save_avoption_int("bt", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
982  goto nomem;
983  } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
984  ffserver_get_arg(arg, sizeof(arg), p);
985  ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
986  "Invalid %s: '%s'", cmd, arg);
987  if (ffserver_save_avoption_int("b", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
988  goto nomem;
989  } else if (!av_strcasecmp(cmd, "VideoSize")) {
990  int ret, w, h;
991  ffserver_get_arg(arg, sizeof(arg), p);
992  ret = av_parse_video_size(&w, &h, arg);
993  if (ret < 0)
994  ERROR("Invalid video size '%s'\n", arg);
995  else {
996  if (w % 2 || h % 2)
997  WARNING("Image size is not a multiple of 2\n");
998  if (ffserver_save_avoption("video_size", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
999  goto nomem;
1000  }
1001  } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
1002  ffserver_get_arg(&arg[2], sizeof(arg) - 2, p);
1003  arg[0] = '1'; arg[1] = '/';
1004  if (ffserver_save_avoption("time_base", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1005  goto nomem;
1006  } else if (!av_strcasecmp(cmd, "PixelFormat")) {
1007  enum AVPixelFormat pix_fmt;
1008  ffserver_get_arg(arg, sizeof(arg), p);
1009  pix_fmt = av_get_pix_fmt(arg);
1010  if (pix_fmt == AV_PIX_FMT_NONE)
1011  ERROR("Unknown pixel format: '%s'\n", arg);
1012  else if (ffserver_save_avoption("pixel_format", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1013  goto nomem;
1014  } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
1015  ffserver_get_arg(arg, sizeof(arg), p);
1016  if (ffserver_save_avoption("g", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1017  goto nomem;
1018  } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
1019  if (ffserver_save_avoption("g", "1", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1020  goto nomem;
1021  } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
1022  if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1023  goto nomem;
1024  } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
1025  if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0 || //FIXME remove
1026  ffserver_save_avoption("flags", "+mv4", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1027  goto nomem;
1028  } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
1029  !av_strcasecmp(cmd, "AVOptionAudio")) {
1030  int ret;
1031  ffserver_get_arg(arg, sizeof(arg), p);
1032  ffserver_get_arg(arg2, sizeof(arg2), p);
1033  if (!av_strcasecmp(cmd, "AVOptionVideo"))
1035  config);
1036  else
1038  config);
1039  if (ret < 0)
1040  goto nomem;
1041  } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
1042  !av_strcasecmp(cmd, "AVPresetAudio")) {
1043  ffserver_get_arg(arg, sizeof(arg), p);
1044  if (!av_strcasecmp(cmd, "AVPresetVideo"))
1046  else
1048  } else if (!av_strcasecmp(cmd, "VideoTag")) {
1049  ffserver_get_arg(arg, sizeof(arg), p);
1050  if (strlen(arg) == 4 &&
1051  ffserver_save_avoption_int("codec_tag",
1052  MKTAG(arg[0], arg[1], arg[2], arg[3]),
1053  AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1054  goto nomem;
1055  } else if (!av_strcasecmp(cmd, "BitExact")) {
1056  config->bitexact = 1;
1057  if (ffserver_save_avoption("flags", "+bitexact", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1058  goto nomem;
1059  } else if (!av_strcasecmp(cmd, "DctFastint")) {
1060  if (ffserver_save_avoption("dct", "fastint", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1061  goto nomem;
1062  } else if (!av_strcasecmp(cmd, "IdctSimple")) {
1063  if (ffserver_save_avoption("idct", "simple", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1064  goto nomem;
1065  } else if (!av_strcasecmp(cmd, "Qscale")) {
1066  ffserver_get_arg(arg, sizeof(arg), p);
1067  ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1068  "Invalid Qscale: '%s'\n", arg);
1069  if (ffserver_save_avoption("flags", "+qscale", AV_OPT_FLAG_VIDEO_PARAM, config) < 0 ||
1070  ffserver_save_avoption_int("global_quality", FF_QP2LAMBDA * val,
1071  AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1072  goto nomem;
1073  } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
1074  ffserver_get_arg(arg, sizeof(arg), p);
1075  if (ffserver_save_avoption("qdiff", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1076  goto nomem;
1077  } else if (!av_strcasecmp(cmd, "VideoQMax")) {
1078  ffserver_get_arg(arg, sizeof(arg), p);
1079  if (ffserver_save_avoption("qmax", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1080  goto nomem;
1081  } else if (!av_strcasecmp(cmd, "VideoQMin")) {
1082  ffserver_get_arg(arg, sizeof(arg), p);
1083  if (ffserver_save_avoption("qmin", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1084  goto nomem;
1085  } else if (!av_strcasecmp(cmd, "LumiMask")) {
1086  ffserver_get_arg(arg, sizeof(arg), p);
1087  if (ffserver_save_avoption("lumi_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1088  goto nomem;
1089  } else if (!av_strcasecmp(cmd, "DarkMask")) {
1090  ffserver_get_arg(arg, sizeof(arg), p);
1091  if (ffserver_save_avoption("dark_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1092  goto nomem;
1093  } else if (!av_strcasecmp(cmd, "NoVideo")) {
1094  config->no_video = 1;
1095  } else if (!av_strcasecmp(cmd, "NoAudio")) {
1096  config->no_audio = 1;
1097  } else if (!av_strcasecmp(cmd, "ACL")) {
1098  ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename,
1099  config->line_num);
1100  } else if (!av_strcasecmp(cmd, "DynamicACL")) {
1101  ffserver_get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), p);
1102  } else if (!av_strcasecmp(cmd, "RTSPOption")) {
1103  ffserver_get_arg(arg, sizeof(arg), p);
1104  av_freep(&stream->rtsp_option);
1105  stream->rtsp_option = av_strdup(arg);
1106  } else if (!av_strcasecmp(cmd, "MulticastAddress")) {
1107  ffserver_get_arg(arg, sizeof(arg), p);
1108  if (resolve_host(&stream->multicast_ip, arg))
1109  ERROR("Invalid host/IP address: '%s'\n", arg);
1110  stream->is_multicast = 1;
1111  stream->loop = 1; /* default is looping */
1112  } else if (!av_strcasecmp(cmd, "MulticastPort")) {
1113  ffserver_get_arg(arg, sizeof(arg), p);
1114  ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
1115  "Invalid MulticastPort: '%s'\n", arg);
1116  stream->multicast_port = val;
1117  } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
1118  ffserver_get_arg(arg, sizeof(arg), p);
1119  ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1120  "Invalid MulticastTTL: '%s'\n", arg);
1121  stream->multicast_ttl = val;
1122  } else if (!av_strcasecmp(cmd, "NoLoop")) {
1123  stream->loop = 0;
1124  } else if (!av_strcasecmp(cmd, "</Stream>")) {
1125  config->stream_use_defaults &= 1;
1126  if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm")) {
1127  if (config->dummy_actx->codec_id == AV_CODEC_ID_NONE)
1128  config->dummy_actx->codec_id = config->guessed_audio_codec_id;
1129  if (!config->no_audio &&
1130  config->dummy_actx->codec_id != AV_CODEC_ID_NONE) {
1132  add_codec(stream, audio_enc, config);
1133  }
1134  if (config->dummy_vctx->codec_id == AV_CODEC_ID_NONE)
1135  config->dummy_vctx->codec_id = config->guessed_video_codec_id;
1136  if (!config->no_video &&
1137  config->dummy_vctx->codec_id != AV_CODEC_ID_NONE) {
1139  add_codec(stream, video_enc, config);
1140  }
1141  }
1142  av_dict_free(&config->video_opts);
1143  av_dict_free(&config->audio_opts);
1144  avcodec_free_context(&config->dummy_vctx);
1145  avcodec_free_context(&config->dummy_actx);
1146  config->no_video = 0;
1147  config->no_audio = 0;
1148  *pstream = NULL;
1149  } else if (!av_strcasecmp(cmd, "File") ||
1150  !av_strcasecmp(cmd, "ReadOnlyFile")) {
1151  ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename),
1152  p);
1153  } else if (!av_strcasecmp(cmd, "UseDefaults")) {
1154  if (config->stream_use_defaults > 1)
1155  WARNING("Multiple UseDefaults/NoDefaults entries.\n");
1156  config->stream_use_defaults = 3;
1157  } else if (!av_strcasecmp(cmd, "NoDefaults")) {
1158  if (config->stream_use_defaults > 1)
1159  WARNING("Multiple UseDefaults/NoDefaults entries.\n");
1160  config->stream_use_defaults = 2;
1161  } else {
1162  ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);
1163  }
1164  return 0;
1165  nomem:
1166  av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");
1167  av_dict_free(&config->video_opts);
1168  av_dict_free(&config->audio_opts);
1169  avcodec_free_context(&config->dummy_vctx);
1170  avcodec_free_context(&config->dummy_actx);
1171  return AVERROR(ENOMEM);
1172 }
1173 
1175  const char *cmd, const char **p,
1176  FFServerStream **predirect)
1177 {
1178  FFServerStream *redirect;
1179  av_assert0(predirect);
1180  redirect = *predirect;
1181 
1182  if (!av_strcasecmp(cmd, "<Redirect")) {
1183  char *q;
1184  redirect = av_mallocz(sizeof(FFServerStream));
1185  if (!redirect)
1186  return AVERROR(ENOMEM);
1187 
1188  ffserver_get_arg(redirect->filename, sizeof(redirect->filename), p);
1189  q = strrchr(redirect->filename, '>');
1190  if (*q)
1191  *q = '\0';
1192  redirect->stream_type = STREAM_TYPE_REDIRECT;
1193  *predirect = redirect;
1194  return 0;
1195  }
1196  av_assert0(redirect);
1197  if (!av_strcasecmp(cmd, "URL")) {
1198  ffserver_get_arg(redirect->feed_filename,
1199  sizeof(redirect->feed_filename), p);
1200  } else if (!av_strcasecmp(cmd, "</Redirect>")) {
1201  if (!redirect->feed_filename[0])
1202  ERROR("No URL found for <Redirect>\n");
1203  *predirect = NULL;
1204  } else {
1205  ERROR("Invalid entry '%s' inside <Redirect></Redirect>\n", cmd);
1206  }
1207  return 0;
1208 }
1209 
1210 int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)
1211 {
1212  FILE *f;
1213  char line[1024];
1214  char cmd[64];
1215  const char *p;
1216  FFServerStream **last_stream, *stream = NULL, *redirect = NULL;
1217  FFServerStream **last_feed, *feed = NULL;
1218  int ret = 0;
1219 
1220  av_assert0(config);
1221 
1222  f = fopen(filename, "r");
1223  if (!f) {
1224  ret = AVERROR(errno);
1226  "Could not open the configuration file '%s'\n", filename);
1227  return ret;
1228  }
1229 
1230  config->first_stream = NULL;
1231  config->first_feed = NULL;
1232  config->errors = config->warnings = 0;
1233 
1234  last_stream = &config->first_stream;
1235  last_feed = &config->first_feed;
1236 
1237  config->line_num = 0;
1238  while (fgets(line, sizeof(line), f) != NULL) {
1239  config->line_num++;
1240  p = line;
1241  while (av_isspace(*p))
1242  p++;
1243  if (*p == '\0' || *p == '#')
1244  continue;
1245 
1246  ffserver_get_arg(cmd, sizeof(cmd), &p);
1247 
1248  if (feed || !av_strcasecmp(cmd, "<Feed")) {
1249  int opening = !av_strcasecmp(cmd, "<Feed");
1250  if (opening && (stream || feed || redirect)) {
1251  ERROR("Already in a tag\n");
1252  } else {
1253  ret = ffserver_parse_config_feed(config, cmd, &p, &feed);
1254  if (ret < 0)
1255  break;
1256  if (opening) {
1257  /* add in stream & feed list */
1258  *last_stream = feed;
1259  *last_feed = feed;
1260  last_stream = &feed->next;
1261  last_feed = &feed->next_feed;
1262  }
1263  }
1264  } else if (stream || !av_strcasecmp(cmd, "<Stream")) {
1265  int opening = !av_strcasecmp(cmd, "<Stream");
1266  if (opening && (stream || feed || redirect)) {
1267  ERROR("Already in a tag\n");
1268  } else {
1269  ret = ffserver_parse_config_stream(config, cmd, &p, &stream);
1270  if (ret < 0)
1271  break;
1272  if (opening) {
1273  /* add in stream list */
1274  *last_stream = stream;
1275  last_stream = &stream->next;
1276  }
1277  }
1278  } else if (redirect || !av_strcasecmp(cmd, "<Redirect")) {
1279  int opening = !av_strcasecmp(cmd, "<Redirect");
1280  if (opening && (stream || feed || redirect))
1281  ERROR("Already in a tag\n");
1282  else {
1283  ret = ffserver_parse_config_redirect(config, cmd, &p,
1284  &redirect);
1285  if (ret < 0)
1286  break;
1287  if (opening) {
1288  /* add in stream list */
1289  *last_stream = redirect;
1290  last_stream = &redirect->next;
1291  }
1292  }
1293  } else {
1294  ffserver_parse_config_global(config, cmd, &p);
1295  }
1296  }
1297  if (stream || feed || redirect)
1298  ERROR("Missing closing </%s> tag\n",
1299  stream ? "Stream" : (feed ? "Feed" : "Redirect"));
1300 
1301  fclose(f);
1302  if (ret < 0)
1303  return ret;
1304  if (config->errors)
1305  return AVERROR(EINVAL);
1306  else
1307  return 0;
1308 }
1309 
1310 #undef ERROR
1311 #undef WARNING
1312 
1313 void ffserver_free_child_args(void *argsp)
1314 {
1315  int i;
1316  char **args;
1317  if (!argsp)
1318  return;
1319  args = *(char ***)argsp;
1320  if (!args)
1321  return;
1322  for (i = 0; i < MAX_CHILD_ARGS; i++)
1323  av_free(args[i]);
1324  av_freep(argsp);
1325 }
struct in_addr last
#define NULL
Definition: coverity.c:32
const struct AVCodec * codec
Definition: avcodec.h:1770
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:1256
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:1826
#define FFM_PACKET_SIZE
static FFServerConfig config
Definition: ffserver.c:193
enum AVCodecID video_codec
default video codec
Definition: avformat.h:535
int num
Numerator.
Definition: rational.h:59
#define AV_OPT_FLAG_AUDIO_PARAM
Definition: opt.h:281
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:3752
void * av_mallocz(size_t size)
Allocate a memory block with alignment suitable for all memory accesses (including vectors if availab...
Definition: mem.c:222
#define freeaddrinfo
Definition: network.h:208
AVCodec.
Definition: avcodec.h:3739
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:1898
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:1834
AVOutputFormat * fmt
enum AVCodecID guessed_video_codec_id
attribute_deprecated const char * rc_eq
Definition: avcodec.h:2754
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:2258
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:1261
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:3753
AVCodecID
Identify the syntax and semantics of the bitstream.
Definition: avcodec.h:214
#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:3746
#define FFMAX(a, b)
Definition: common.h:94
static void * av_mallocz_array(size_t nmemb, size_t size)
Definition: mem.h:229
#define WARNING(...)
int rc_buffer_size
decoder bitstream buffer size
Definition: avcodec.h:2739
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:557
int ff_inet_aton(const char *str, struct in_addr *add)
int width
picture width / height.
Definition: avcodec.h:1948
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:524
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:1294
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:237
enum AVMediaType codec_type
Definition: avcodec.h:1769
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:1778
int sample_rate
samples per second
Definition: avcodec.h:2523
char filename[1024]
#define AV_OPT_FLAG_VIDEO_PARAM
Definition: opt.h:282
main external API structure.
Definition: avcodec.h:1761
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:1944
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:2297
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:207
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:135
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:1803
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:2524
enum AVCodecID audio_codec
default audio codec
Definition: avformat.h:534
#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:2347
FFServerStream * first_stream
#define MKTAG(a, b, c, d)
Definition: common.h:342
struct sockaddr * ai_addr
Definition: network.h:133
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:2762
static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd, const char **p, FFServerStream **pstream)
static uint8_t tmp[11]
Definition: aes_ctr.c:26
int ai_family
Definition: network.h:129