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FFmpeg/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. // FIXME those are internal headers, ffserver _really_ shouldn't use them

  29. #include "libavformat/ffm.h"

  30. 

  31. #include "cmdutils.h"

  32. #include "ffserver_config.h"

  33. 

  34. /* FIXME: make ffserver work with IPv6 */

  35. /* resolve host with also IP address parsing */

  36. static int resolve_host(struct in_addr *sin_addr, const char *hostname)

  37. {

  38. 

  39.     if (!ff_inet_aton(hostname, sin_addr)) {

  40. #if HAVE_GETADDRINFO

  41.         struct addrinfo *ai, *cur;

  42.         struct addrinfo hints = { 0 };

  43.         hints.ai_family = AF_INET;

  44.         if (getaddrinfo(hostname, NULL, &hints, &ai))

  45.             return -1;

  46.         /* getaddrinfo returns a linked list of addrinfo structs.

  47.          * Even if we set ai_family = AF_INET above, make sure

  48.          * that the returned one actually is of the correct type. */

  49.         for (cur = ai; cur; cur = cur->ai_next) {

  50.             if (cur->ai_family == AF_INET) {

  51.                 *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr;

  52.                 freeaddrinfo(ai);

  53.                 return 0;

  54.             }

  55.         }

  56.         freeaddrinfo(ai);

  57.         return -1;

  58. #else

  59.         struct hostent *hp;

  60.         hp = gethostbyname(hostname);

  61.         if (!hp)

  62.             return -1;

  63.         memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr));

  64. #endif

  65.     }

  66.     return 0;

  67. }

  68. 

  69. void ffserver_get_arg(char *buf, int buf_size, const char **pp)

  70. {

  71.     const char *p;

  72.     char *q;

  73.     int quote;

  74. 

  75.     p = *pp;

  76.     while (av_isspace(*p)) p++;

  77.     q = buf;

  78.     quote = 0;

  79.     if (*p == '\"' || *p == '\'')

  80.         quote = *p++;

  81.     for(;;) {

  82.         if (quote) {

  83.             if (*p == quote)

  84.                 break;

  85.         } else {

  86.             if (av_isspace(*p))

  87.                 break;

  88.         }

  89.         if (*p == '\0')

  90.             break;

  91.         if ((q - buf) < buf_size - 1)

  92.             *q++ = *p;

  93.         p++;

  94.     }

  95.     *q = '\0';

  96.     if (quote && *p == quote)

  97.         p++;

  98.     *pp = p;

  99. }

  100. 

  101. void ffserver_parse_acl_row(FFServerStream *stream, FFServerStream* feed,

  102.                             FFServerIPAddressACL *ext_acl,

  103.                             const char *p, const char *filename, int line_num)

  104. {

  105.     char arg[1024];

  106.     FFServerIPAddressACL acl;

  107.     int errors = 0;

  108. 

  109.     ffserver_get_arg(arg, sizeof(arg), &p);

  110.     if (av_strcasecmp(arg, "allow") == 0)

  111.         acl.action = IP_ALLOW;

  112.     else if (av_strcasecmp(arg, "deny") == 0)

  113.         acl.action = IP_DENY;

  114.     else {

  115.         fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n",

  116.                 filename, line_num, arg);

  117.         errors++;

  118.     }

  119. 

  120.     ffserver_get_arg(arg, sizeof(arg), &p);

  121. 

  122.     if (resolve_host(&acl.first, arg) != 0) {

  123.         fprintf(stderr, "%s:%d: ACL refers to invalid host or IP address '%s'\n",

  124.                 filename, line_num, arg);

  125.         errors++;

  126.     } else

  127.         acl.last = acl.first;

  128. 

  129.     ffserver_get_arg(arg, sizeof(arg), &p);

  130. 

  131.     if (arg[0]) {

  132.         if (resolve_host(&acl.last, arg) != 0) {

  133.             fprintf(stderr, "%s:%d: ACL refers to invalid host or IP address '%s'\n",

  134.                     filename, line_num, arg);

  135.             errors++;

  136.         }

  137.     }

  138. 

  139.     if (!errors) {

  140.         FFServerIPAddressACL *nacl = av_mallocz(sizeof(*nacl));

  141.         FFServerIPAddressACL **naclp = 0;

  142. 

  143.         acl.next = 0;

  144.         *nacl = acl;

  145. 

  146.         if (stream)

  147.             naclp = &stream->acl;

  148.         else if (feed)

  149.             naclp = &feed->acl;

  150.         else if (ext_acl)

  151.             naclp = &ext_acl;

  152.         else {

  153.             fprintf(stderr, "%s:%d: ACL found not in <stream> or <feed>\n",

  154.                     filename, line_num);

  155.             errors++;

  156.         }

  157. 

  158.         if (naclp) {

  159.             while (*naclp)

  160.                 naclp = &(*naclp)->next;

  161. 

  162.             *naclp = nacl;

  163.         } else

  164.             av_free(nacl);

  165.     }

  166. }

  167. 

  168. /* add a codec and set the default parameters */

  169. static void add_codec(FFServerStream *stream, AVCodecContext *av)

  170. {

  171.     AVStream *st;

  172. 

  173.     if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))

  174.         return;

  175. 

  176.     /* compute default parameters */

  177.     switch(av->codec_type) {

  178.     case AVMEDIA_TYPE_AUDIO:

  179.         if (av->bit_rate == 0)

  180.             av->bit_rate = 64000;

  181.         if (av->sample_rate == 0)

  182.             av->sample_rate = 22050;

  183.         if (av->channels == 0)

  184.             av->channels = 1;

  185.         break;

  186.     case AVMEDIA_TYPE_VIDEO:

  187.         if (av->bit_rate == 0)

  188.             av->bit_rate = 64000;

  189.         if (av->time_base.num == 0){

  190.             av->time_base.den = 5;

  191.             av->time_base.num = 1;

  192.         }

  193.         if (av->width == 0 || av->height == 0) {

  194.             av->width = 160;

  195.             av->height = 128;

  196.         }

  197.         /* Bitrate tolerance is less for streaming */

  198.         if (av->bit_rate_tolerance == 0)

  199.             av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,

  200.                       (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);

  201.         if (av->qmin == 0)

  202.             av->qmin = 3;

  203.         if (av->qmax == 0)

  204.             av->qmax = 31;

  205.         if (av->max_qdiff == 0)

  206.             av->max_qdiff = 3;

  207.         av->qcompress = 0.5;

  208.         av->qblur = 0.5;

  209. 

  210.         if (!av->nsse_weight)

  211.             av->nsse_weight = 8;

  212. 

  213.         av->frame_skip_cmp = FF_CMP_DCTMAX;

  214.         if (!av->me_method)

  215.             av->me_method = ME_EPZS;

  216.         av->rc_buffer_aggressivity = 1.0;

  217. 

  218.         if (!av->rc_eq)

  219.             av->rc_eq = av_strdup("tex^qComp");

  220.         if (!av->i_quant_factor)

  221.             av->i_quant_factor = -0.8;

  222.         if (!av->b_quant_factor)

  223.             av->b_quant_factor = 1.25;

  224.         if (!av->b_quant_offset)

  225.             av->b_quant_offset = 1.25;

  226.         if (!av->rc_max_rate)

  227.             av->rc_max_rate = av->bit_rate * 2;

  228. 

  229.         if (av->rc_max_rate && !av->rc_buffer_size) {

  230.             av->rc_buffer_size = av->rc_max_rate;

  231.         }

  232. 

  233. 

  234.         break;

  235.     default:

  236.         abort();

  237.     }

  238. 

  239.     st = av_mallocz(sizeof(AVStream));

  240.     if (!st)

  241.         return;

  242.     st->codec = av;

  243.     stream->streams[stream->nb_streams++] = st;

  244. }

  245. 

  246. static enum AVCodecID opt_codec(const char *name, enum AVMediaType type)

  247. {

  248.     AVCodec *codec = avcodec_find_encoder_by_name(name);

  249. 

  250.     if (!codec || codec->type != type)

  251.         return AV_CODEC_ID_NONE;

  252.     return codec->id;

  253. }

  254. 

  255. static int ffserver_opt_default(const char *opt, const char *arg,

  256.                        AVCodecContext *avctx, int type)

  257. {

  258.     int ret = 0;

  259.     const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);

  260.     if(o)

  261.         ret = av_opt_set(avctx, opt, arg, 0);

  262.     return ret;

  263. }

  264. 

  265. static int ffserver_opt_preset(const char *arg,

  266.                        AVCodecContext *avctx, int type,

  267.                        enum AVCodecID *audio_id, enum AVCodecID *video_id)

  268. {

  269.     FILE *f=NULL;

  270.     char filename[1000], tmp[1000], tmp2[1000], line[1000];

  271.     int ret = 0;

  272.     AVCodec *codec = NULL;

  273. 

  274.     if (avctx)

  275.         codec = avcodec_find_encoder(avctx->codec_id);

  276. 

  277.     if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,

  278.                               codec ? codec->name : NULL))) {

  279.         fprintf(stderr, "File for preset '%s' not found\n", arg);

  280.         return AVERROR(EINVAL);

  281.     }

  282. 

  283.     while(!feof(f)){

  284.         int e= fscanf(f, "%999[^\n]\n", line) - 1;

  285.         if(line[0] == '#' && !e)

  286.             continue;

  287.         e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2;

  288.         if(e){

  289.             fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);

  290.             ret = AVERROR(EINVAL);

  291.             break;

  292.         }

  293.         if (audio_id && !strcmp(tmp, "acodec")) {

  294.             *audio_id = opt_codec(tmp2, AVMEDIA_TYPE_AUDIO);

  295.         } else if (video_id && !strcmp(tmp, "vcodec")){

  296.             *video_id = opt_codec(tmp2, AVMEDIA_TYPE_VIDEO);

  297.         } else if(!strcmp(tmp, "scodec")) {

  298.             /* opt_subtitle_codec(tmp2); */

  299.         } else if (avctx && (ret = ffserver_opt_default(tmp, tmp2, avctx, type)) < 0) {

  300.             fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);

  301.             break;

  302.         }

  303.     }

  304. 

  305.     fclose(f);

  306. 

  307.     return ret;

  308. }

  309. 

  310. static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename, const char *mime_type)

  311. {

  312.     AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);

  313. 

  314.     if (fmt) {

  315.         AVOutputFormat *stream_fmt;

  316.         char stream_format_name[64];

  317. 

  318.         snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name);

  319.         stream_fmt = av_guess_format(stream_format_name, NULL, NULL);

  320. 

  321.         if (stream_fmt)

  322.             fmt = stream_fmt;

  323.     }

  324. 

  325.     return fmt;

  326. }

  327. 

  328. static void vreport_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, va_list vl)

  329. {

  330.     av_log(NULL, log_level, "%s:%d: ", filename, line_num);

  331.     av_vlog(NULL, log_level, fmt, vl);

  332.     (*errors)++;

  333. }

  334. 

  335. static void report_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, ...)

  336. {

  337.     va_list vl;

  338.     va_start(vl, fmt);

  339.     vreport_config_error(filename, line_num, log_level, errors, fmt, vl);

  340.     va_end(vl);

  341. }

  342. 

  343. static int ffserver_set_int_param(int *dest, const char *value, int factor, int min, int max,

  344.                                   FFServerConfig *config, int line_num, const char *error_msg, ...)

  345. {

  346.     int tmp;

  347.     char *tailp;

  348.     if (!value || !value[0])

  349.         goto error;

  350.     errno = 0;

  351.     tmp = strtol(value, &tailp, 0);

  352.     if (tmp < min || tmp > max)

  353.         goto error;

  354.     if (factor) {

  355.         if (FFABS(tmp) > INT_MAX / FFABS(factor))

  356.             goto error;

  357.         tmp *= factor;

  358.     }

  359.     if (tailp[0] || errno)

  360.         goto error;

  361.     if (dest)

  362.         *dest = tmp;

  363.     return 0;

  364.   error:

  365.     if (config) {

  366.         va_list vl;

  367.         va_start(vl, error_msg);

  368.         vreport_config_error(config->filename, line_num, AV_LOG_ERROR, &config->errors, error_msg, vl);

  369.         va_end(vl);

  370.     }

  371.     return AVERROR(EINVAL);

  372. }

  373. 

  374. static int ffserver_set_float_param(float *dest, const char *value, float factor, float min, float max,

  375.                                     FFServerConfig *config, int line_num, const char *error_msg, ...)

  376. {

  377.     double tmp;

  378.     char *tailp;

  379.     if (!value || !value[0])

  380.         goto error;

  381.     errno = 0;

  382.     tmp = strtod(value, &tailp);

  383.     if (tmp < min || tmp > max)

  384.         goto error;

  385.     if (factor)

  386.         tmp *= factor;

  387.     if (tailp[0] || errno)

  388.         goto error;

  389.     if (dest)

  390.         *dest = tmp;

  391.     return 0;

  392.   error:

  393.     if (config) {

  394.         va_list vl;

  395.         va_start(vl, error_msg);

  396.         vreport_config_error(config->filename, line_num, AV_LOG_ERROR, &config->errors, error_msg, vl);

  397.         va_end(vl);

  398.     }

  399.     return AVERROR(EINVAL);

  400. }

  401. 

  402. #define ERROR(...)   report_config_error(config->filename, line_num, AV_LOG_ERROR,   &config->errors,   __VA_ARGS__)

  403. #define WARNING(...) report_config_error(config->filename, line_num, AV_LOG_WARNING, &config->warnings, __VA_ARGS__)

  404. 

  405. static int ffserver_parse_config_global(FFServerConfig *config, const char *cmd,

  406.                                         const char **p, int line_num)

  407. {

  408.     int val;

  409.     char arg[1024];

  410.     if (!av_strcasecmp(cmd, "Port") || !av_strcasecmp(cmd, "HTTPPort")) {

  411.         if (!av_strcasecmp(cmd, "Port"))

  412.             WARNING("Port option is deprecated, use HTTPPort instead\n");

  413.         ffserver_get_arg(arg, sizeof(arg), p);

  414.         val = atoi(arg);

  415.         if (val < 1 || val > 65536)

  416.             ERROR("Invalid port: %s\n", arg);

  417.         if (val < 1024)

  418.             WARNING("Trying to use IETF assigned system port: %d\n", val);

  419.         config->http_addr.sin_port = htons(val);

  420.     } else if (!av_strcasecmp(cmd, "HTTPBindAddress") || !av_strcasecmp(cmd, "BindAddress")) {

  421.         if (!av_strcasecmp(cmd, "BindAddress"))

  422.             WARNING("BindAddress option is deprecated, use HTTPBindAddress instead\n");

  423.         ffserver_get_arg(arg, sizeof(arg), p);

  424.         if (resolve_host(&config->http_addr.sin_addr, arg) != 0)

  425.             ERROR("%s:%d: Invalid host/IP address: %s\n", arg);

  426.     } else if (!av_strcasecmp(cmd, "NoDaemon")) {

  427.         WARNING("NoDaemon option has no effect, you should remove it\n");

  428.     } else if (!av_strcasecmp(cmd, "RTSPPort")) {

  429.         ffserver_get_arg(arg, sizeof(arg), p);

  430.         val = atoi(arg);

  431.         if (val < 1 || val > 65536)

  432.             ERROR("%s:%d: Invalid port: %s\n", arg);

  433.         config->rtsp_addr.sin_port = htons(atoi(arg));

  434.     } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {

  435.         ffserver_get_arg(arg, sizeof(arg), p);

  436.         if (resolve_host(&config->rtsp_addr.sin_addr, arg) != 0)

  437.             ERROR("Invalid host/IP address: %s\n", arg);

  438.     } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {

  439.         ffserver_get_arg(arg, sizeof(arg), p);

  440.         val = atoi(arg);

  441.         if (val < 1 || val > 65536)

  442.             ERROR("Invalid MaxHTTPConnections: %s\n", arg);

  443.         config->nb_max_http_connections = val;

  444.     } else if (!av_strcasecmp(cmd, "MaxClients")) {

  445.         ffserver_get_arg(arg, sizeof(arg), p);

  446.         val = atoi(arg);

  447.         if (val < 1 || val > config->nb_max_http_connections)

  448.             ERROR("Invalid MaxClients: %s\n", arg);

  449.         else

  450.             config->nb_max_connections = val;

  451.     } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {

  452.         int64_t llval;

  453.         ffserver_get_arg(arg, sizeof(arg), p);

  454.         llval = strtoll(arg, NULL, 10);

  455.         if (llval < 10 || llval > 10000000)

  456.             ERROR("Invalid MaxBandwidth: %s\n", arg);

  457.         else

  458.             config->max_bandwidth = llval;

  459.     } else if (!av_strcasecmp(cmd, "CustomLog")) {

  460.         if (!config->debug)

  461.             ffserver_get_arg(config->logfilename, sizeof(config->logfilename), p);

  462.     } else if (!av_strcasecmp(cmd, "LoadModule")) {

  463.         ERROR("Loadable modules no longer supported\n");

  464.     } else

  465.         ERROR("Incorrect keyword: '%s'\n", cmd);

  466.     return 0;

  467. }

  468. 

  469. static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd, const char **p,

  470.                                       int line_num, FFServerStream **pfeed)

  471. {

  472.     FFServerStream *feed;

  473.     char arg[1024];

  474.     av_assert0(pfeed);

  475.     feed = *pfeed;

  476.     if (!av_strcasecmp(cmd, "<Feed")) {

  477.         char *q;

  478.         FFServerStream *s;

  479.         feed = av_mallocz(sizeof(FFServerStream));

  480.         if (!feed)

  481.             return AVERROR(ENOMEM);

  482.         ffserver_get_arg(feed->filename, sizeof(feed->filename), p);

  483.         q = strrchr(feed->filename, '>');

  484.         if (*q)

  485.             *q = '\0';

  486. 

  487.         for (s = config->first_feed; s; s = s->next) {

  488.             if (!strcmp(feed->filename, s->filename))

  489.                 ERROR("Feed '%s' already registered\n", s->filename);

  490.         }

  491. 

  492.         feed->fmt = av_guess_format("ffm", NULL, NULL);

  493.         /* default feed file */

  494.         snprintf(feed->feed_filename, sizeof(feed->feed_filename),

  495.                  "/tmp/%s.ffm", feed->filename);

  496.         feed->feed_max_size = 5 * 1024 * 1024;

  497.         feed->is_feed = 1;

  498.         feed->feed = feed; /* self feeding :-) */

  499.         *pfeed = feed;

  500.         return 0;

  501.     }

  502.     av_assert0(feed);

  503.     if (!av_strcasecmp(cmd, "Launch")) {

  504.         int i;

  505. 

  506.         feed->child_argv = av_mallocz(64 * sizeof(char *));

  507.         if (!feed->child_argv)

  508.             return AVERROR(ENOMEM);

  509.         for (i = 0; i < 62; i++) {

  510.             ffserver_get_arg(arg, sizeof(arg), p);

  511.             if (!arg[0])

  512.                 break;

  513. 

  514.             feed->child_argv[i] = av_strdup(arg);

  515.             if (!feed->child_argv[i])

  516.                 return AVERROR(ENOMEM);

  517.         }

  518. 

  519.         feed->child_argv[i] =

  520.             av_asprintf("http://%s:%d/%s",

  521.                         (config->http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" :

  522.                         inet_ntoa(config->http_addr.sin_addr), ntohs(config->http_addr.sin_port),

  523.                         feed->filename);

  524.         if (!feed->child_argv[i])

  525.             return AVERROR(ENOMEM);

  526.     } else if (!av_strcasecmp(cmd, "ACL")) {

  527.         ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename, line_num);

  528.     } else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) {

  529.         ffserver_get_arg(feed->feed_filename, sizeof(feed->feed_filename), p);

  530.         feed->readonly = !av_strcasecmp(cmd, "ReadOnlyFile");

  531.     } else if (!av_strcasecmp(cmd, "Truncate")) {

  532.         ffserver_get_arg(arg, sizeof(arg), p);

  533.         /* assume Truncate is true in case no argument is specified */

  534.         if (!arg[0]) {

  535.             feed->truncate = 1;

  536.         } else {

  537.             WARNING("Truncate N syntax in configuration file is deprecated, "

  538.                     "use Truncate alone with no arguments\n");

  539.             feed->truncate = strtod(arg, NULL);

  540.         }

  541.     } else if (!av_strcasecmp(cmd, "FileMaxSize")) {

  542.         char *p1;

  543.         double fsize;

  544. 

  545.         ffserver_get_arg(arg, sizeof(arg), p);

  546.         p1 = arg;

  547.         fsize = strtod(p1, &p1);

  548.         switch(av_toupper(*p1)) {

  549.         case 'K':

  550.             fsize *= 1024;

  551.             break;

  552.         case 'M':

  553.             fsize *= 1024 * 1024;

  554.             break;

  555.         case 'G':

  556.             fsize *= 1024 * 1024 * 1024;

  557.             break;

  558.         }

  559.         feed->feed_max_size = (int64_t)fsize;

  560.         if (feed->feed_max_size < FFM_PACKET_SIZE*4)

  561.             ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4);

  562.     } else if (!av_strcasecmp(cmd, "</Feed>")) {

  563.         *pfeed = NULL;

  564.     } else {

  565.         ERROR("Invalid entry '%s' inside <Feed></Feed>\n", cmd);

  566.     }

  567.     return 0;

  568. }

  569. 

  570. static int ffserver_apply_stream_config(AVCodecContext *enc, const AVDictionary *conf, AVDictionary **opts)

  571. {

  572.     AVDictionaryEntry *e;

  573.     int ret = 0;

  574. 

  575.     /* Return values from ffserver_set_*_param are ignored.

  576.        Values are initially parsed and checked before inserting to AVDictionary. */

  577. 

  578.     //video params

  579.     if ((e = av_dict_get(conf, "VideoBitRateRangeMin", NULL, 0)))

  580.         ffserver_set_int_param(&enc->rc_min_rate, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);

  581.     if ((e = av_dict_get(conf, "VideoBitRateRangeMax", NULL, 0)))

  582.         ffserver_set_int_param(&enc->rc_max_rate, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);

  583.     if ((e = av_dict_get(conf, "Debug", NULL, 0)))

  584.         ffserver_set_int_param(&enc->debug, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  585.     if ((e = av_dict_get(conf, "Strict", NULL, 0)))

  586.         ffserver_set_int_param(&enc->strict_std_compliance, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  587.     if ((e = av_dict_get(conf, "VideoBufferSize", NULL, 0)))

  588.         ffserver_set_int_param(&enc->rc_buffer_size, e->value, 8*1024, INT_MIN, INT_MAX, NULL, 0, NULL);

  589.     if ((e = av_dict_get(conf, "VideoBitRateTolerance", NULL, 0)))

  590.         ffserver_set_int_param(&enc->bit_rate_tolerance, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);

  591.     if ((e = av_dict_get(conf, "VideoBitRate", NULL, 0)))

  592.         ffserver_set_int_param(&enc->bit_rate, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);

  593.     if ((e = av_dict_get(conf, "VideoSizeWidth", NULL, 0)))

  594.         ffserver_set_int_param(&enc->width, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  595.     if ((e = av_dict_get(conf, "VideoSizeHeight", NULL, 0)))

  596.         ffserver_set_int_param(&enc->height, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  597.     if ((e = av_dict_get(conf, "PixelFormat", NULL, 0))) {

  598.         int val;

  599.         ffserver_set_int_param(&val, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  600.         enc->pix_fmt = val;

  601.     }

  602.     if ((e = av_dict_get(conf, "VideoGopSize", NULL, 0)))

  603.         ffserver_set_int_param(&enc->gop_size, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  604.     if ((e = av_dict_get(conf, "VideoFrameRateNum", NULL, 0)))

  605.         ffserver_set_int_param(&enc->time_base.num, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  606.     if ((e = av_dict_get(conf, "VideoFrameRateDen", NULL, 0)))

  607.         ffserver_set_int_param(&enc->time_base.den, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  608.     if ((e = av_dict_get(conf, "VideoQDiff", NULL, 0)))

  609.         ffserver_set_int_param(&enc->max_qdiff, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  610.     if ((e = av_dict_get(conf, "VideoQMax", NULL, 0)))

  611.         ffserver_set_int_param(&enc->qmax, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  612.     if ((e = av_dict_get(conf, "VideoQMin", NULL, 0)))

  613.         ffserver_set_int_param(&enc->qmin, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  614.     if ((e = av_dict_get(conf, "LumiMask", NULL, 0)))

  615.         ffserver_set_float_param(&enc->lumi_masking, e->value, 0, -FLT_MAX, FLT_MAX, NULL, 0, NULL);

  616.     if ((e = av_dict_get(conf, "DarkMask", NULL, 0)))

  617.         ffserver_set_float_param(&enc->dark_masking, e->value, 0, -FLT_MAX, FLT_MAX, NULL, 0, NULL);

  618.     if (av_dict_get(conf, "BitExact", NULL, 0))

  619.         enc->flags |= CODEC_FLAG_BITEXACT;

  620.     if (av_dict_get(conf, "DctFastint", NULL, 0))

  621.         enc->dct_algo  = FF_DCT_FASTINT;

  622.     if (av_dict_get(conf, "IdctSimple", NULL, 0))

  623.         enc->idct_algo = FF_IDCT_SIMPLE;

  624.     if (av_dict_get(conf, "VideoHighQuality", NULL, 0))

  625.         enc->mb_decision = FF_MB_DECISION_BITS;

  626.     if ((e = av_dict_get(conf, "VideoTag", NULL, 0)))

  627.         enc->codec_tag = MKTAG(e->value[0], e->value[1], e->value[2], e->value[3]);

  628.     if (av_dict_get(conf, "Qscale", NULL, 0)) {

  629.         enc->flags |= CODEC_FLAG_QSCALE;

  630.         ffserver_set_int_param(&enc->global_quality, e->value, FF_QP2LAMBDA, INT_MIN, INT_MAX, NULL, 0, NULL);

  631.     }

  632.     if (av_dict_get(conf, "Video4MotionVector", NULL, 0)) {

  633.         enc->mb_decision = FF_MB_DECISION_BITS; //FIXME remove

  634.         enc->flags |= CODEC_FLAG_4MV;

  635.     }

  636.     //audio params

  637.     if ((e = av_dict_get(conf, "AudioChannels", NULL, 0)))

  638.         ffserver_set_int_param(&enc->channels, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  639.     if ((e = av_dict_get(conf, "AudioSampleRate", NULL, 0)))

  640.         ffserver_set_int_param(&enc->sample_rate, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  641.     if ((e = av_dict_get(conf, "AudioBitRate", NULL, 0)))

  642.         ffserver_set_int_param(&enc->bit_rate, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);

  643. 

  644.     av_opt_set_dict2(enc, opts, AV_OPT_SEARCH_CHILDREN);

  645.     e = NULL;

  646.     while (e = av_dict_get(*opts, "", e, AV_DICT_IGNORE_SUFFIX)) {

  647.         av_log(NULL, AV_LOG_ERROR, "Provided AVOption '%s' doesn't match any existing option.\n", e->key);

  648.         ret = AVERROR(EINVAL);

  649.     }

  650. 

  651.     return ret;

  652. }

  653. 

  654. static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd, const char **p,

  655.                                         int line_num, FFServerStream **pstream)

  656. {

  657.     char arg[1024], arg2[1024];

  658.     FFServerStream *stream;

  659. 

  660.     av_assert0(pstream);

  661.     stream = *pstream;

  662. 

  663.     if (!av_strcasecmp(cmd, "<Stream")) {

  664.         char *q;

  665.         FFServerStream *s;

  666.         stream = av_mallocz(sizeof(FFServerStream));

  667.         if (!stream)

  668.             return AVERROR(ENOMEM);

  669.         ffserver_get_arg(stream->filename, sizeof(stream->filename), p);

  670.         q = strrchr(stream->filename, '>');

  671.         if (q)

  672.             *q = '\0';

  673. 

  674.         for (s = config->first_stream; s; s = s->next) {

  675.             if (!strcmp(stream->filename, s->filename))

  676.                 ERROR("Stream '%s' already registered\n", s->filename);

  677.         }

  678. 

  679.         stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL);

  680.         if (stream->fmt) {

  681.             config->audio_id = stream->fmt->audio_codec;

  682.             config->video_id = stream->fmt->video_codec;

  683.         } else {

  684.             config->audio_id = AV_CODEC_ID_NONE;

  685.             config->video_id = AV_CODEC_ID_NONE;

  686.         }

  687.         *pstream = stream;

  688.         return 0;

  689.     }

  690.     av_assert0(stream);

  691.     if (!av_strcasecmp(cmd, "Feed")) {

  692.         FFServerStream *sfeed;

  693.         ffserver_get_arg(arg, sizeof(arg), p);

  694.         sfeed = config->first_feed;

  695.         while (sfeed) {

  696.             if (!strcmp(sfeed->filename, arg))

  697.                 break;

  698.             sfeed = sfeed->next_feed;

  699.         }

  700.         if (!sfeed)

  701.             ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg, stream->filename);

  702.         else

  703.             stream->feed = sfeed;

  704.     } else if (!av_strcasecmp(cmd, "Format")) {

  705.         ffserver_get_arg(arg, sizeof(arg), p);

  706.         if (!strcmp(arg, "status")) {

  707.             stream->stream_type = STREAM_TYPE_STATUS;

  708.             stream->fmt = NULL;

  709.         } else {

  710.             stream->stream_type = STREAM_TYPE_LIVE;

  711.             /* JPEG cannot be used here, so use single frame MJPEG */

  712.             if (!strcmp(arg, "jpeg"))

  713.                 strcpy(arg, "mjpeg");

  714.             stream->fmt = ffserver_guess_format(arg, NULL, NULL);

  715.             if (!stream->fmt)

  716.                 ERROR("Unknown Format: %s\n", arg);

  717.         }

  718.         if (stream->fmt) {

  719.             config->audio_id = stream->fmt->audio_codec;

  720.             config->video_id = stream->fmt->video_codec;

  721.         }

  722.     } else if (!av_strcasecmp(cmd, "InputFormat")) {

  723.         ffserver_get_arg(arg, sizeof(arg), p);

  724.         stream->ifmt = av_find_input_format(arg);

  725.         if (!stream->ifmt)

  726.             ERROR("Unknown input format: %s\n", arg);

  727.     } else if (!av_strcasecmp(cmd, "FaviconURL")) {

  728.         if (stream->stream_type == STREAM_TYPE_STATUS)

  729.             ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename), p);

  730.         else

  731.             ERROR("FaviconURL only permitted for status streams\n");

  732.     } else if (!av_strcasecmp(cmd, "Author")    ||

  733.                !av_strcasecmp(cmd, "Comment")   ||

  734.                !av_strcasecmp(cmd, "Copyright") ||

  735.                !av_strcasecmp(cmd, "Title")) {

  736.         char key[32];

  737.         int i;

  738.         ffserver_get_arg(arg, sizeof(arg), p);

  739.         for (i = 0; i < strlen(cmd); i++)

  740.             key[i] = av_tolower(cmd[i]);

  741.         key[i] = 0;

  742.         WARNING("'%s' option in configuration file is deprecated, "

  743.                 "use 'Metadata %s VALUE' instead\n", cmd, key);

  744.         if (av_dict_set(&stream->metadata, key, arg, 0) < 0)

  745.             goto nomem;

  746.     } else if (!av_strcasecmp(cmd, "Metadata")) {

  747.         ffserver_get_arg(arg, sizeof(arg), p);

  748.         ffserver_get_arg(arg2, sizeof(arg2), p);

  749.         if (av_dict_set(&stream->metadata, arg, arg2, 0) < 0)

  750.             goto nomem;

  751.     } else if (!av_strcasecmp(cmd, "Preroll")) {

  752.         ffserver_get_arg(arg, sizeof(arg), p);

  753.         stream->prebuffer = atof(arg) * 1000;

  754.     } else if (!av_strcasecmp(cmd, "StartSendOnKey")) {

  755.         stream->send_on_key = 1;

  756.     } else if (!av_strcasecmp(cmd, "AudioCodec")) {

  757.         ffserver_get_arg(arg, sizeof(arg), p);

  758.         config->audio_id = opt_codec(arg, AVMEDIA_TYPE_AUDIO);

  759.         if (config->audio_id == AV_CODEC_ID_NONE)

  760.             ERROR("Unknown AudioCodec: %s\n", arg);

  761.     } else if (!av_strcasecmp(cmd, "VideoCodec")) {

  762.         ffserver_get_arg(arg, sizeof(arg), p);

  763.         config->video_id = opt_codec(arg, AVMEDIA_TYPE_VIDEO);

  764.         if (config->video_id == AV_CODEC_ID_NONE)

  765.             ERROR("Unknown VideoCodec: %s\n", arg);

  766.     } else if (!av_strcasecmp(cmd, "MaxTime")) {

  767.         ffserver_get_arg(arg, sizeof(arg), p);

  768.         stream->max_time = atof(arg) * 1000;

  769.     } else if (!av_strcasecmp(cmd, "AudioBitRate")) {

  770.         float f;

  771.         ffserver_get_arg(arg, sizeof(arg), p);

  772.         ffserver_set_float_param(&f, arg, 1000, 0, FLT_MAX, config, line_num, "Invalid %s: %s\n", cmd, arg);

  773.         if (av_dict_set_int(&config->audio_conf, cmd, lrintf(f), 0) < 0)

  774.             goto nomem;

  775.     } else if (!av_strcasecmp(cmd, "AudioChannels")) {

  776.         ffserver_get_arg(arg, sizeof(arg), p);

  777.         ffserver_set_int_param(NULL, arg, 0, 1, 8, config, line_num, "Invalid %s: %s, valid range is 1-8.", cmd, arg);

  778.         if (av_dict_set(&config->audio_conf, cmd, arg, 0) < 0)

  779.             goto nomem;

  780.     } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {

  781.         ffserver_get_arg(arg, sizeof(arg), p);

  782.         ffserver_set_int_param(NULL, arg, 0, 0, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  783.         if (av_dict_set(&config->audio_conf, cmd, arg, 0) < 0)

  784.             goto nomem;

  785.     } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {

  786.         int minrate, maxrate;

  787.         ffserver_get_arg(arg, sizeof(arg), p);

  788.         if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {

  789.             if (av_dict_set_int(&config->video_conf, "VideoBitRateRangeMin", minrate, 0) < 0 ||

  790.                 av_dict_set_int(&config->video_conf, "VideoBitRateRangeMax", maxrate, 0) < 0)

  791.                 goto nomem;

  792.         } else

  793.             ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);

  794.     } else if (!av_strcasecmp(cmd, "Debug")) {

  795.         ffserver_get_arg(arg, sizeof(arg), p);

  796.         ffserver_set_int_param(NULL, arg, 0, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  797.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  798.             goto nomem;

  799.     } else if (!av_strcasecmp(cmd, "Strict")) {

  800.         ffserver_get_arg(arg, sizeof(arg), p);

  801.         ffserver_set_int_param(NULL, arg, 0, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  802.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  803.             goto nomem;

  804.     } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {

  805.         ffserver_get_arg(arg, sizeof(arg), p);

  806.         ffserver_set_int_param(NULL, arg, 8*1024, 0, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  807.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  808.             goto nomem;

  809.     } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {

  810.         ffserver_get_arg(arg, sizeof(arg), p);

  811.         ffserver_set_int_param(NULL, arg, 1000, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  812.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  813.             goto nomem;

  814.     } else if (!av_strcasecmp(cmd, "VideoBitRate")) {

  815.         ffserver_get_arg(arg, sizeof(arg), p);

  816.         ffserver_set_int_param(NULL, arg, 1000, 0, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  817.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  818.            goto nomem;

  819.     } else if (!av_strcasecmp(cmd, "VideoSize")) {

  820.         int ret, w, h;

  821.         ffserver_get_arg(arg, sizeof(arg), p);

  822.         ret = av_parse_video_size(&w, &h, arg);

  823.         if (ret < 0)

  824.             ERROR("Invalid video size '%s'\n", arg);

  825.         else if ((w % 16) || (h % 16))

  826.             ERROR("Image size must be a multiple of 16\n");

  827.         if (av_dict_set_int(&config->video_conf, "VideoSizeWidth", w, 0) < 0 ||

  828.             av_dict_set_int(&config->video_conf, "VideoSizeHeight", h, 0) < 0)

  829.             goto nomem;

  830.     } else if (!av_strcasecmp(cmd, "VideoFrameRate")) {

  831.         AVRational frame_rate;

  832.         ffserver_get_arg(arg, sizeof(arg), p);

  833.         if (av_parse_video_rate(&frame_rate, arg) < 0) {

  834.             ERROR("Incorrect frame rate: %s\n", arg);

  835.         } else {

  836.             if (av_dict_set_int(&config->video_conf, "VideoFrameRateNum", frame_rate.num, 0) < 0 ||

  837.                 av_dict_set_int(&config->video_conf, "VideoFrameRateDen", frame_rate.den, 0) < 0)

  838.                 goto nomem;

  839.         }

  840.     } else if (!av_strcasecmp(cmd, "PixelFormat")) {

  841.         enum AVPixelFormat pix_fmt;

  842.         ffserver_get_arg(arg, sizeof(arg), p);

  843.         pix_fmt = av_get_pix_fmt(arg);

  844.         if (pix_fmt == AV_PIX_FMT_NONE)

  845.             ERROR("Unknown pixel format: %s\n", arg);

  846.         if (av_dict_set_int(&config->video_conf, cmd, pix_fmt, 0) < 0)

  847.             goto nomem;

  848.     } else if (!av_strcasecmp(cmd, "VideoGopSize")) {

  849.         ffserver_get_arg(arg, sizeof(arg), p);

  850.         ffserver_set_int_param(NULL, arg, 0, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  851.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  852.             goto nomem;

  853.     } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {

  854.         if (av_dict_set(&config->video_conf, cmd, "1", 0) < 0)

  855.             goto nomem;

  856.     } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {

  857.         if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)

  858.             goto nomem;

  859.     } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {

  860.         if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)

  861.             goto nomem;

  862.     } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||

  863.                !av_strcasecmp(cmd, "AVOptionAudio")) {

  864.         AVDictionary **dict;

  865.         ffserver_get_arg(arg, sizeof(arg), p);

  866.         ffserver_get_arg(arg2, sizeof(arg2), p);

  867.         if (!av_strcasecmp(cmd, "AVOptionVideo"))

  868.             dict = &config->video_opts;

  869.         else

  870.             dict = &config->audio_opts;

  871.         if (av_dict_set(dict, arg, arg2, 0) < 0)

  872.             goto nomem;

  873.     } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||

  874.                !av_strcasecmp(cmd, "AVPresetAudio")) {

  875.         char **preset = NULL;

  876.         ffserver_get_arg(arg, sizeof(arg), p);

  877.         if (!av_strcasecmp(cmd, "AVPresetVideo")) {

  878.             preset = &config->video_preset;

  879.             ffserver_opt_preset(arg, NULL, 0, NULL, &config->video_id);

  880.         } else {

  881.             preset = &config->audio_preset;

  882.             ffserver_opt_preset(arg, NULL, 0, &config->audio_id, NULL);

  883.         }

  884.         *preset = av_strdup(arg);

  885.         if (!preset)

  886.             return AVERROR(ENOMEM);

  887.     } else if (!av_strcasecmp(cmd, "VideoTag")) {

  888.         ffserver_get_arg(arg, sizeof(arg), p);

  889.         if (strlen(arg) == 4) {

  890.             if (av_dict_set(&config->video_conf, "VideoTag", "arg", 0) < 0)

  891.                 goto nomem;

  892.         }

  893.     } else if (!av_strcasecmp(cmd, "BitExact")) {

  894.         if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)

  895.             goto nomem;

  896.     } else if (!av_strcasecmp(cmd, "DctFastint")) {

  897.         if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)

  898.             goto nomem;

  899.     } else if (!av_strcasecmp(cmd, "IdctSimple")) {

  900.         if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)

  901.             goto nomem;

  902.     } else if (!av_strcasecmp(cmd, "Qscale")) {

  903.         ffserver_get_arg(arg, sizeof(arg), p);

  904.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  905.             goto nomem;

  906.     } else if (!av_strcasecmp(cmd, "VideoQDiff")) {

  907.         ffserver_get_arg(arg, sizeof(arg), p);

  908.         ffserver_set_int_param(NULL, arg, 0, 1, 31, config, line_num, "%s out of range\n", cmd);

  909.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  910.             goto nomem;

  911.     } else if (!av_strcasecmp(cmd, "VideoQMax")) {

  912.         ffserver_get_arg(arg, sizeof(arg), p);

  913.         ffserver_set_int_param(NULL, arg, 0, 1, 31, config, line_num, "%s out of range\n", cmd);

  914.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  915.             goto nomem;

  916.     } else if (!av_strcasecmp(cmd, "VideoQMin")) {

  917.         ffserver_get_arg(arg, sizeof(arg), p);

  918.         ffserver_set_int_param(NULL, arg, 0, 1, 31, config, line_num, "%s out of range\n", cmd);

  919.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  920.             goto nomem;

  921.     } else if (!av_strcasecmp(cmd, "LumiMask")) {

  922.         ffserver_get_arg(arg, sizeof(arg), p);

  923.         ffserver_set_float_param(NULL, arg, 0, -FLT_MAX, FLT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  924.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  925.             goto nomem;

  926.     } else if (!av_strcasecmp(cmd, "DarkMask")) {

  927.         ffserver_get_arg(arg, sizeof(arg), p);

  928.         ffserver_set_float_param(NULL, arg, 0, -FLT_MAX, FLT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);

  929.         if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)

  930.             goto nomem;

  931.     } else if (!av_strcasecmp(cmd, "NoVideo")) {

  932.         config->video_id = AV_CODEC_ID_NONE;

  933.     } else if (!av_strcasecmp(cmd, "NoAudio")) {

  934.         config->audio_id = AV_CODEC_ID_NONE;

  935.     } else if (!av_strcasecmp(cmd, "ACL")) {

  936.         ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename, line_num);

  937.     } else if (!av_strcasecmp(cmd, "DynamicACL")) {

  938.         ffserver_get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), p);

  939.     } else if (!av_strcasecmp(cmd, "RTSPOption")) {

  940.         ffserver_get_arg(arg, sizeof(arg), p);

  941.         av_freep(&stream->rtsp_option);

  942.         stream->rtsp_option = av_strdup(arg);

  943.     } else if (!av_strcasecmp(cmd, "MulticastAddress")) {

  944.         ffserver_get_arg(arg, sizeof(arg), p);

  945.         if (resolve_host(&stream->multicast_ip, arg) != 0)

  946.             ERROR("Invalid host/IP address: %s\n", arg);

  947.         stream->is_multicast = 1;

  948.         stream->loop = 1; /* default is looping */

  949.     } else if (!av_strcasecmp(cmd, "MulticastPort")) {

  950.         ffserver_get_arg(arg, sizeof(arg), p);

  951.         stream->multicast_port = atoi(arg);

  952.     } else if (!av_strcasecmp(cmd, "MulticastTTL")) {

  953.         ffserver_get_arg(arg, sizeof(arg), p);

  954.         stream->multicast_ttl = atoi(arg);

  955.     } else if (!av_strcasecmp(cmd, "NoLoop")) {

  956.         stream->loop = 0;

  957.     } else if (!av_strcasecmp(cmd, "</Stream>")) {

  958.         if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {

  959.             if (config->audio_id != AV_CODEC_ID_NONE) {

  960.                 AVCodecContext *audio_enc = avcodec_alloc_context3(avcodec_find_encoder(config->audio_id));

  961.                 if (config->audio_preset &&

  962.                     ffserver_opt_preset(arg, audio_enc, AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_ENCODING_PARAM,

  963.                                         NULL, NULL) < 0)

  964.                     ERROR("Could not apply preset '%s'\n", arg);

  965.                 if (ffserver_apply_stream_config(audio_enc, config->audio_conf, &config->audio_opts) < 0)

  966.                     config->errors++;

  967.                 add_codec(stream, audio_enc);

  968.             }

  969.             if (config->video_id != AV_CODEC_ID_NONE) {

  970.                 AVCodecContext *video_enc = avcodec_alloc_context3(avcodec_find_encoder(config->video_id));

  971.                 if (config->video_preset &&

  972.                     ffserver_opt_preset(arg, video_enc, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_ENCODING_PARAM,

  973.                                         NULL, NULL) < 0)

  974.                     ERROR("Could not apply preset '%s'\n", arg);

  975.                 if (ffserver_apply_stream_config(video_enc, config->video_conf, &config->video_opts) < 0)

  976.                     config->errors++;

  977.                 add_codec(stream, video_enc);

  978.             }

  979.         }

  980.         av_dict_free(&config->video_opts);

  981.         av_dict_free(&config->video_conf);

  982.         av_dict_free(&config->audio_opts);

  983.         av_dict_free(&config->audio_conf);

  984.         av_freep(&config->video_preset);

  985.         av_freep(&config->audio_preset);

  986.         *pstream = NULL;

  987.     } else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) {

  988.         ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename), p);

  989.     } else {

  990.         ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);

  991.     }

  992.     return 0;

  993.   nomem:

  994.     av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");

  995.     av_dict_free(&config->video_opts);

  996.     av_dict_free(&config->video_conf);

  997.     av_dict_free(&config->audio_opts);

  998.     av_dict_free(&config->audio_conf);

  999.     av_freep(&config->video_preset);

  1000.     av_freep(&config->audio_preset);

  1001.     return AVERROR(ENOMEM);

  1002. }

  1003. 

  1004. static int ffserver_parse_config_redirect(FFServerConfig *config, const char *cmd, const char **p,

  1005.                                           int line_num, FFServerStream **predirect)

  1006. {

  1007.     FFServerStream *redirect;

  1008.     av_assert0(predirect);

  1009.     redirect = *predirect;

  1010. 

  1011.     if (!av_strcasecmp(cmd, "<Redirect")) {

  1012.         char *q;

  1013.         redirect = av_mallocz(sizeof(FFServerStream));

  1014.         if (!redirect)

  1015.             return AVERROR(ENOMEM);

  1016. 

  1017.         ffserver_get_arg(redirect->filename, sizeof(redirect->filename), p);

  1018.         q = strrchr(redirect->filename, '>');

  1019.         if (*q)

  1020.             *q = '\0';

  1021.         redirect->stream_type = STREAM_TYPE_REDIRECT;

  1022.         *predirect = redirect;

  1023.         return 0;

  1024.     }

  1025.     av_assert0(redirect);

  1026.     if (!av_strcasecmp(cmd, "URL")) {

  1027.         ffserver_get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), p);

  1028.     } else if (!av_strcasecmp(cmd, "</Redirect>")) {

  1029.         if (!redirect->feed_filename[0])

  1030.             ERROR("No URL found for <Redirect>\n");

  1031.         *predirect = NULL;

  1032.     } else {

  1033.         ERROR("Invalid entry '%s' inside <Redirect></Redirect>\n", cmd);

  1034.     }

  1035.     return 0;

  1036. }

  1037. 

  1038. int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)

  1039. {

  1040.     FILE *f;

  1041.     char line[1024];

  1042.     char cmd[64];

  1043.     const char *p;

  1044.     int line_num = 0;

  1045.     FFServerStream **last_stream, *stream = NULL, *redirect = NULL;

  1046.     FFServerStream **last_feed, *feed = NULL;

  1047.     int ret = 0;

  1048. 

  1049.     av_assert0(config);

  1050. 

  1051.     f = fopen(filename, "r");

  1052.     if (!f) {

  1053.         ret = AVERROR(errno);

  1054.         av_log(NULL, AV_LOG_ERROR, "Could not open the configuration file '%s'\n", filename);

  1055.         return ret;

  1056.     }

  1057. 

  1058.     config->first_stream = NULL;

  1059.     last_stream = &config->first_stream;

  1060.     config->first_feed = NULL;

  1061.     last_feed = &config->first_feed;

  1062.     config->errors = config->warnings = 0;

  1063. 

  1064.     for(;;) {

  1065.         if (fgets(line, sizeof(line), f) == NULL)

  1066.             break;

  1067.         line_num++;

  1068.         p = line;

  1069.         while (av_isspace(*p))

  1070.             p++;

  1071.         if (*p == '\0' || *p == '#')

  1072.             continue;

  1073. 

  1074.         ffserver_get_arg(cmd, sizeof(cmd), &p);

  1075. 

  1076.         if (feed || !av_strcasecmp(cmd, "<Feed")) {

  1077.             int opening = !av_strcasecmp(cmd, "<Feed");

  1078.             if (opening && (stream || feed || redirect)) {

  1079.                 ERROR("Already in a tag\n");

  1080.             } else {

  1081.                 if ((ret = ffserver_parse_config_feed(config, cmd, &p, line_num, &feed)) < 0)

  1082.                     break;

  1083.                 if (opening) {

  1084.                     /* add in stream list */

  1085.                     *last_stream = feed;

  1086.                     last_stream = &feed->next;

  1087.                     /* add in feed list */

  1088.                     *last_feed = feed;

  1089.                     last_feed = &feed->next_feed;

  1090.                 }

  1091.             }

  1092.         } else if (stream || !av_strcasecmp(cmd, "<Stream")) {

  1093.             int opening = !av_strcasecmp(cmd, "<Stream");

  1094.             if (opening && (stream || feed || redirect)) {

  1095.                 ERROR("Already in a tag\n");

  1096.             } else {

  1097.                 if ((ret = ffserver_parse_config_stream(config, cmd, &p, line_num, &stream)) < 0)

  1098.                     break;

  1099.                 if (opening) {

  1100.                     /* add in stream list */

  1101.                     *last_stream = stream;

  1102.                     last_stream = &stream->next;

  1103.                 }

  1104.             }

  1105.         } else if (redirect || !av_strcasecmp(cmd, "<Redirect")) {

  1106.             int opening = !av_strcasecmp(cmd, "<Redirect");

  1107.             if (opening && (stream || feed || redirect))

  1108.                 ERROR("Already in a tag\n");

  1109.             else {

  1110.                 if ((ret = ffserver_parse_config_redirect(config, cmd, &p, line_num, &redirect)) < 0)

  1111.                     break;

  1112.                 if (opening) {

  1113.                     /* add in stream list */

  1114.                     *last_stream = redirect;

  1115.                     last_stream = &redirect->next;

  1116.                 }

  1117.             }

  1118.         } else {

  1119.             ffserver_parse_config_global(config, cmd, &p, line_num);

  1120.         }

  1121.     }

  1122. 

  1123.     fclose(f);

  1124.     if (ret < 0)

  1125.         return ret;

  1126.     if (config->errors)

  1127.         return AVERROR(EINVAL);

  1128.     else

  1129.         return 0;

  1130. }

  1131. 

  1132. #undef ERROR

  1133. #undef WARNING