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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. static int ffserver_save_avoption(const char *opt, const char *arg, int type,

  35.                                   FFServerConfig *config);

  36. static void vreport_config_error(const char *filename, int line_num, int log_level,

  37.                                  int *errors, const char *fmt, va_list vl);

  38. static void report_config_error(const char *filename, int line_num, int log_level,

  39.                                 int *errors, const char *fmt, ...);

  40. 

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

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

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

  44. {

  45. 

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

  47. #if HAVE_GETADDRINFO

  48.         struct addrinfo *ai, *cur;

  49.         struct addrinfo hints = { 0 };

  50.         hints.ai_family = AF_INET;

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

  52.             return -1;

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

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

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

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

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

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

  59.                 freeaddrinfo(ai);

  60.                 return 0;

  61.             }

  62.         }

  63.         freeaddrinfo(ai);

  64.         return -1;

  65. #else

  66.         struct hostent *hp;

  67.         hp = gethostbyname(hostname);

  68.         if (!hp)

  69.             return -1;

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

  71. #endif

  72.     }

  73.     return 0;

  74. }

  75. 

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

  77. {

  78.     const char *p;

  79.     char *q;

  80.     int quote;

  81. 

  82.     p = *pp;

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

  84.     q = buf;

  85.     quote = 0;

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

  87.         quote = *p++;

  88.     for(;;) {

  89.         if (quote) {

  90.             if (*p == quote)

  91.                 break;

  92.         } else {

  93.             if (av_isspace(*p))

  94.                 break;

  95.         }

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

  97.             break;

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

  99.             *q++ = *p;

  100.         p++;

  101.     }

  102.     *q = '\0';

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

  104.         p++;

  105.     *pp = p;

  106. }

  107. 

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

  109.                             FFServerIPAddressACL *ext_acl,

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

  111. {

  112.     char arg[1024];

  113.     FFServerIPAddressACL acl;

  114.     int errors = 0;

  115. 

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

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

  118.         acl.action = IP_ALLOW;

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

  120.         acl.action = IP_DENY;

  121.     else {

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

  123.                 filename, line_num, arg);

  124.         errors++;

  125.     }

  126. 

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

  128. 

  129.     if (resolve_host(&acl.first, arg)) {

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

  131.                 filename, line_num, arg);

  132.         errors++;

  133.     } else

  134.         acl.last = acl.first;

  135. 

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

  137. 

  138.     if (arg[0]) {

  139.         if (resolve_host(&acl.last, arg)) {

  140.             fprintf(stderr,

  141.                     "%s:%d: ACL refers to invalid host or IP address '%s'\n",

  142.                     filename, line_num, arg);

  143.             errors++;

  144.         }

  145.     }

  146. 

  147.     if (!errors) {

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

  149.         FFServerIPAddressACL **naclp = 0;

  150. 

  151.         acl.next = 0;

  152.         *nacl = acl;

  153. 

  154.         if (stream)

  155.             naclp = &stream->acl;

  156.         else if (feed)

  157.             naclp = &feed->acl;

  158.         else if (ext_acl)

  159.             naclp = &ext_acl;

  160.         else {

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

  162.                     filename, line_num);

  163.             errors++;

  164.         }

  165. 

  166.         if (naclp) {

  167.             while (*naclp)

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

  169. 

  170.             *naclp = nacl;

  171.         } else

  172.             av_free(nacl);

  173.     }

  174. }

  175. 

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

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

  178. {

  179.     AVStream *st;

  180. 

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

  182.         return;

  183. 

  184.     /* compute default parameters */

  185.     switch(av->codec_type) {

  186.     case AVMEDIA_TYPE_AUDIO:

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

  188.             av->bit_rate = 64000;

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

  190.             av->sample_rate = 22050;

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

  192.             av->channels = 1;

  193.         break;

  194.     case AVMEDIA_TYPE_VIDEO:

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

  196.             av->bit_rate = 64000;

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

  198.             av->time_base.den = 5;

  199.             av->time_base.num = 1;

  200.         }

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

  202.             av->width = 160;

  203.             av->height = 128;

  204.         }

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

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

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

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

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

  210.             av->qmin = 3;

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

  212.             av->qmax = 31;

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

  214.             av->max_qdiff = 3;

  215.         av->qcompress = 0.5;

  216.         av->qblur = 0.5;

  217. 

  218.         if (!av->nsse_weight)

  219.             av->nsse_weight = 8;

  220. 

  221.         av->frame_skip_cmp = FF_CMP_DCTMAX;

  222.         if (!av->me_method)

  223.             av->me_method = ME_EPZS;

  224. 

  225.         /* FIXME: rc_buffer_aggressivity and rc_eq are deprecated */

  226.         av->rc_buffer_aggressivity = 1.0;

  227. 

  228.         if (!av->rc_eq)

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

  230.         if (!av->i_quant_factor)

  231.             av->i_quant_factor = -0.8;

  232.         if (!av->b_quant_factor)

  233.             av->b_quant_factor = 1.25;

  234.         if (!av->b_quant_offset)

  235.             av->b_quant_offset = 1.25;

  236.         if (!av->rc_max_rate)

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

  238. 

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

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

  241.         }

  242. 

  243. 

  244.         break;

  245.     default:

  246.         abort();

  247.     }

  248. 

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

  250.     if (!st)

  251.         return;

  252.     st->codec = av;

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

  254. }

  255. 

  256. static int ffserver_set_codec(AVCodecContext *ctx, const char *codec_name, FFServerConfig *config)

  257. {

  258.     int ret;

  259.     AVCodec *codec = avcodec_find_encoder_by_name(codec_name);

  260.     if (!codec || codec->type != ctx->codec_type) {

  261.         report_config_error(config->filename, config->line_num, AV_LOG_ERROR,

  262.                             &config->errors, "Invalid codec name: %s\n", codec_name);

  263.         return 0;

  264.     }

  265.     if (ctx->codec_id == AV_CODEC_ID_NONE && !ctx->priv_data) {

  266.         if ((ret = avcodec_get_context_defaults3(ctx, codec)) < 0)

  267.             return ret;

  268.         ctx->codec = codec;

  269.     }

  270.     if (ctx->codec_id != codec->id)

  271.         report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors,

  272.                             "Inconsistent configuration: trying to set %s codec option, but %s codec is used previously\n",

  273.                             codec_name, avcodec_get_name(ctx->codec_id));

  274.     return 0;

  275. }

  276. 

  277. static int ffserver_opt_preset(const char *arg, int type, FFServerConfig *config)

  278. {

  279.     FILE *f=NULL;

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

  281.     int ret = 0;

  282.     AVCodecContext *avctx;

  283.     const AVCodec *codec;

  284. 

  285.     switch(type) {

  286.     case AV_OPT_FLAG_AUDIO_PARAM:

  287.         avctx = config->dummy_actx;

  288.         break;

  289.     case AV_OPT_FLAG_VIDEO_PARAM:

  290.         avctx = config->dummy_vctx;

  291.         break;

  292.     default:

  293.         av_assert0(0);

  294.     }

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

  296. 

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

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

  299.         av_log(NULL, AV_LOG_ERROR, "File for preset '%s' not found\n", arg);

  300.         return AVERROR(EINVAL);

  301.     }

  302. 

  303.     while(!feof(f)){

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

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

  306.             continue;

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

  308.         if(e){

  309.             av_log(NULL, AV_LOG_ERROR, "%s: Invalid syntax: '%s'\n", filename, line);

  310.             ret = AVERROR(EINVAL);

  311.             break;

  312.         }

  313.         if ((!strcmp(tmp, "acodec") && avctx->codec_type == AVMEDIA_TYPE_AUDIO) ||

  314.              !strcmp(tmp, "vcodec") && avctx->codec_type == AVMEDIA_TYPE_VIDEO)

  315.         {

  316.             if (ffserver_set_codec(avctx, tmp2, config) < 0)

  317.                 break;

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

  319.             av_log(NULL, AV_LOG_ERROR, "Subtitles preset found.\n");

  320.             ret = AVERROR(EINVAL);

  321.             break;

  322.         } else if (ffserver_save_avoption(tmp, tmp2, type, config) < 0)

  323.             break;

  324.     }

  325. 

  326.     fclose(f);

  327. 

  328.     return ret;

  329. }

  330. 

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

  332. {

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

  334. 

  335.     if (fmt) {

  336.         AVOutputFormat *stream_fmt;

  337.         char stream_format_name[64];

  338. 

  339.         snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream",

  340.                 fmt->name);

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

  342. 

  343.         if (stream_fmt)

  344.             fmt = stream_fmt;

  345.     }

  346. 

  347.     return fmt;

  348. }

  349. 

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

  351. {

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

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

  354.     if (errors)

  355.         (*errors)++;

  356. }

  357. 

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

  359. {

  360.     va_list vl;

  361.     va_start(vl, fmt);

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

  363.     va_end(vl);

  364. }

  365. 

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

  367.                                   FFServerConfig *config, const char *error_msg, ...)

  368. {

  369.     int tmp;

  370.     char *tailp;

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

  372.         goto error;

  373.     errno = 0;

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

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

  376.         goto error;

  377.     if (factor) {

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

  379.             goto error;

  380.         tmp *= factor;

  381.     }

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

  383.         goto error;

  384.     if (dest)

  385.         *dest = tmp;

  386.     return 0;

  387.   error:

  388.     if (config) {

  389.         va_list vl;

  390.         va_start(vl, error_msg);

  391.         vreport_config_error(config->filename, config->line_num, AV_LOG_ERROR,

  392.                 &config->errors, error_msg, vl);

  393.         va_end(vl);

  394.     }

  395.     return AVERROR(EINVAL);

  396. }

  397. 

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

  399.                                     FFServerConfig *config, const char *error_msg, ...)

  400. {

  401.     double tmp;

  402.     char *tailp;

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

  404.         goto error;

  405.     errno = 0;

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

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

  408.         goto error;

  409.     if (factor)

  410.         tmp *= factor;

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

  412.         goto error;

  413.     if (dest)

  414.         *dest = tmp;

  415.     return 0;

  416.   error:

  417.     if (config) {

  418.         va_list vl;

  419.         va_start(vl, error_msg);

  420.         vreport_config_error(config->filename, config->line_num, AV_LOG_ERROR,

  421.                 &config->errors, error_msg, vl);

  422.         va_end(vl);

  423.     }

  424.     return AVERROR(EINVAL);

  425. }

  426. 

  427. static int ffserver_save_avoption(const char *opt, const char *arg, int type, FFServerConfig *config)

  428. {

  429.     static int hinted = 0;

  430.     int ret = 0;

  431.     AVDictionaryEntry *e;

  432.     const AVOption *o = NULL;

  433.     const char *option = NULL;

  434.     const char *codec_name = NULL;

  435.     char buff[1024];

  436.     AVCodecContext *ctx;

  437.     AVDictionary **dict;

  438.     enum AVCodecID guessed_codec_id;

  439. 

  440.     switch (type) {

  441.     case AV_OPT_FLAG_VIDEO_PARAM:

  442.         ctx = config->dummy_vctx;

  443.         dict = &config->video_opts;

  444.         guessed_codec_id = config->guessed_video_codec_id != AV_CODEC_ID_NONE ?

  445.                            config->guessed_video_codec_id : AV_CODEC_ID_H264;

  446.         break;

  447.     case AV_OPT_FLAG_AUDIO_PARAM:

  448.         ctx = config->dummy_actx;

  449.         dict = &config->audio_opts;

  450.         guessed_codec_id = config->guessed_audio_codec_id != AV_CODEC_ID_NONE ?

  451.                            config->guessed_audio_codec_id : AV_CODEC_ID_AAC;

  452.         break;

  453.     default:

  454.         av_assert0(0);

  455.     }

  456. 

  457.     if (strchr(opt, ':')) {

  458.         //explicit private option

  459.         snprintf(buff, sizeof(buff), "%s", opt);

  460.         codec_name = buff;

  461.         option = strchr(buff, ':');

  462.         buff[option - buff] = '\0';

  463.         option++;

  464.         if ((ret = ffserver_set_codec(ctx, codec_name, config)) < 0)

  465.             return ret;

  466.         if (!ctx->codec || !ctx->priv_data)

  467.             return -1;

  468.     } else {

  469.         option = opt;

  470.     }

  471. 

  472.     o = av_opt_find(ctx, option, NULL, type | AV_OPT_FLAG_ENCODING_PARAM, AV_OPT_SEARCH_CHILDREN);

  473.     if (!o && (!strcmp(option, "time_base")  || !strcmp(option, "pixel_format") ||

  474.                !strcmp(option, "video_size") || !strcmp(option, "codec_tag")))

  475.         o = av_opt_find(ctx, option, NULL, 0, 0);

  476.     if (!o) {

  477.         report_config_error(config->filename, config->line_num, AV_LOG_ERROR,

  478.                             &config->errors, "Option not found: %s\n", opt);

  479.         if (!hinted && ctx->codec_id == AV_CODEC_ID_NONE) {

  480.             hinted = 1;

  481.             report_config_error(config->filename, config->line_num, AV_LOG_ERROR, NULL,

  482.                                 "If '%s' is a codec private option, then prefix it with codec name, "

  483.                                 "for example '%s:%s %s' or define codec earlier.\n",

  484.                                 opt, avcodec_get_name(guessed_codec_id) ,opt, arg);

  485.         }

  486.     } else if ((ret = av_opt_set(ctx, option, arg, AV_OPT_SEARCH_CHILDREN)) < 0) {

  487.         report_config_error(config->filename, config->line_num, AV_LOG_ERROR,

  488.                 &config->errors, "Invalid value for option %s (%s): %s\n", opt,

  489.                 arg, av_err2str(ret));

  490.     } else if ((e = av_dict_get(*dict, option, NULL, 0))) {

  491.         if ((o->type == AV_OPT_TYPE_FLAGS) && arg && (arg[0] == '+' || arg[0] == '-'))

  492.             return av_dict_set(dict, option, arg, AV_DICT_APPEND);

  493.         report_config_error(config->filename, config->line_num, AV_LOG_ERROR,

  494.                 &config->errors,

  495.                 "Redeclaring value of the option %s, previous value: %s\n",

  496.                 opt, e->value);

  497.     } else if (av_dict_set(dict, option, arg, 0) < 0) {

  498.         return AVERROR(ENOMEM);

  499.     }

  500.     return 0;

  501. }

  502. 

  503. static int ffserver_save_avoption_int(const char *opt, int64_t arg,

  504.                                       int type, FFServerConfig *config)

  505. {

  506.     char buf[22];

  507.     snprintf(buf, sizeof(buf), "%"PRId64, arg);

  508.     return ffserver_save_avoption(opt, buf, type, config);

  509. }

  510. 

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

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

  513. 

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

  515.                                         const char **p)

  516. {

  517.     int val;

  518.     char arg[1024];

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

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

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

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

  523.         ffserver_set_int_param(&val, arg, 0, 1, 65535, config,

  524.                 "Invalid port: %s\n", arg);

  525.         if (val < 1024)

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

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

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

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

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

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

  532.         if (resolve_host(&config->http_addr.sin_addr, arg))

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

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

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

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

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

  538.         ffserver_set_int_param(&val, arg, 0, 1, 65535, config,

  539.                 "Invalid port: %s\n", arg);

  540.         config->rtsp_addr.sin_port = htons(val);

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

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

  543.         if (resolve_host(&config->rtsp_addr.sin_addr, arg))

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

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

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

  547.         ffserver_set_int_param(&val, arg, 0, 1, 65535, config,

  548.                 "Invalid MaxHTTPConnections: %s\n", arg);

  549.         config->nb_max_http_connections = val;

  550.         if (config->nb_max_connections > config->nb_max_http_connections)

  551.             ERROR("Inconsistent configuration: MaxClients(%d) > MaxHTTPConnections(%d)\n",

  552.                   config->nb_max_connections, config->nb_max_http_connections);

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

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

  555.         ffserver_set_int_param(&val, arg, 0, 1, 65535, config,

  556.                 "Invalid MaxClients: %s\n", arg);

  557.         config->nb_max_connections = val;

  558.         if (config->nb_max_connections > config->nb_max_http_connections)

  559.             ERROR("Inconsistent configuration: MaxClients(%d) > MaxHTTPConnections(%d)\n",

  560.                   config->nb_max_connections, config->nb_max_http_connections);

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

  562.         int64_t llval;

  563.         char *tailp;

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

  565.         errno = 0;

  566.         llval = strtoll(arg, &tailp, 10);

  567.         if (llval < 10 || llval > 10000000 || tailp[0] || errno)

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

  569.         else

  570.             config->max_bandwidth = llval;

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

  572.         if (!config->debug)

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

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

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

  576.     } else

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

  578.     return 0;

  579. }

  580. 

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

  582.                                       FFServerStream **pfeed)

  583. {

  584.     FFServerStream *feed;

  585.     char arg[1024];

  586.     av_assert0(pfeed);

  587.     feed = *pfeed;

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

  589.         char *q;

  590.         FFServerStream *s;

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

  592.         if (!feed)

  593.             return AVERROR(ENOMEM);

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

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

  596.         if (*q)

  597.             *q = '\0';

  598. 

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

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

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

  602.         }

  603. 

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

  605.         /* default feed file */

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

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

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

  609.         feed->is_feed = 1;

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

  611.         *pfeed = feed;

  612.         return 0;

  613.     }

  614.     av_assert0(feed);

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

  616.         int i;

  617. 

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

  619.         if (!feed->child_argv)

  620.             return AVERROR(ENOMEM);

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

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

  623.             if (!arg[0])

  624.                 break;

  625. 

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

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

  628.                 return AVERROR(ENOMEM);

  629.         }

  630. 

  631.         feed->child_argv[i] =

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

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

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

  635.                         feed->filename);

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

  637.             return AVERROR(ENOMEM);

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

  639.         ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename,

  640.                 config->line_num);

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

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

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

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

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

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

  647.         if (!arg[0]) {

  648.             feed->truncate = 1;

  649.         } else {

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

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

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

  653.         }

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

  655.         char *p1;

  656.         double fsize;

  657. 

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

  659.         p1 = arg;

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

  661.         switch(av_toupper(*p1)) {

  662.         case 'K':

  663.             fsize *= 1024;

  664.             break;

  665.         case 'M':

  666.             fsize *= 1024 * 1024;

  667.             break;

  668.         case 'G':

  669.             fsize *= 1024 * 1024 * 1024;

  670.             break;

  671.         default:

  672.             ERROR("Invalid file size: %s\n", arg);

  673.             break;

  674.         }

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

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

  677.             ERROR("Feed max file size is too small, must be at least %d\n",

  678.                     FFM_PACKET_SIZE*4);

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

  680.         *pfeed = NULL;

  681.     } else {

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

  683.     }

  684.     return 0;

  685. }

  686. 

  687. static void ffserver_apply_stream_config(AVCodecContext *enc, AVDictionary **opts)

  688. {

  689.     av_opt_set_dict2(enc->priv_data, opts, AV_OPT_SEARCH_CHILDREN);

  690.     av_opt_set_dict2(enc, opts, AV_OPT_SEARCH_CHILDREN);

  691.     if (av_dict_count(*opts))

  692.         av_log(NULL, AV_LOG_ERROR, "Something went wrong, %d options not set!!!\n", av_dict_count(*opts));

  693. }

  694. 

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

  696.                                         FFServerStream **pstream)

  697. {

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

  699.     FFServerStream *stream;

  700.     int val;

  701. 

  702.     av_assert0(pstream);

  703.     stream = *pstream;

  704. 

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

  706.         char *q;

  707.         FFServerStream *s;

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

  709.         if (!stream)

  710.             return AVERROR(ENOMEM);

  711.         config->dummy_actx = avcodec_alloc_context3(NULL);

  712.         config->dummy_vctx = avcodec_alloc_context3(NULL);

  713.         if (!config->dummy_vctx || !config->dummy_actx) {

  714.             av_free(stream);

  715.             avcodec_free_context(&config->dummy_vctx);

  716.             avcodec_free_context(&config->dummy_actx);

  717.             return AVERROR(ENOMEM);

  718.         }

  719.         config->dummy_actx->codec_type = AVMEDIA_TYPE_AUDIO;

  720.         config->dummy_vctx->codec_type = AVMEDIA_TYPE_VIDEO;

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

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

  723.         if (q)

  724.             *q = '\0';

  725. 

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

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

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

  729.         }

  730. 

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

  732.         if (stream->fmt) {

  733.             config->guessed_audio_codec_id = stream->fmt->audio_codec;

  734.             config->guessed_video_codec_id = stream->fmt->video_codec;

  735.         } else {

  736.             config->guessed_audio_codec_id = AV_CODEC_ID_NONE;

  737.             config->guessed_video_codec_id = AV_CODEC_ID_NONE;

  738.         }

  739.         *pstream = stream;

  740.         return 0;

  741.     }

  742.     av_assert0(stream);

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

  744.         FFServerStream *sfeed;

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

  746.         sfeed = config->first_feed;

  747.         while (sfeed) {

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

  749.                 break;

  750.             sfeed = sfeed->next_feed;

  751.         }

  752.         if (!sfeed)

  753.             ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg,

  754.                     stream->filename);

  755.         else

  756.             stream->feed = sfeed;

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

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

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

  760.             stream->stream_type = STREAM_TYPE_STATUS;

  761.             stream->fmt = NULL;

  762.         } else {

  763.             stream->stream_type = STREAM_TYPE_LIVE;

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

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

  766.                 strcpy(arg, "mjpeg");

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

  768.             if (!stream->fmt)

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

  770.         }

  771.         if (stream->fmt) {

  772.             config->guessed_audio_codec_id = stream->fmt->audio_codec;

  773.             config->guessed_video_codec_id = stream->fmt->video_codec;

  774.         }

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

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

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

  778.         if (!stream->ifmt)

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

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

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

  782.             ffserver_get_arg(stream->feed_filename,

  783.                     sizeof(stream->feed_filename), p);

  784.         else

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

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

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

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

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

  790.         char key[32];

  791.         int i;

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

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

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

  795.         key[i] = 0;

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

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

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

  799.             goto nomem;

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

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

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

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

  804.             goto nomem;

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

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

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

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

  809.         stream->send_on_key = 1;

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

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

  812.         ffserver_set_codec(config->dummy_actx, arg, config);

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

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

  815.         ffserver_set_codec(config->dummy_vctx, arg, config);

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

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

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

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

  820.         float f;

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

  822.         ffserver_set_float_param(&f, arg, 1000, -FLT_MAX, FLT_MAX, config,

  823.                 "Invalid %s: %s\n", cmd, arg);

  824.         if (ffserver_save_avoption_int("ab", (int64_t)lrintf(f), AV_OPT_FLAG_AUDIO_PARAM, config) < 0)

  825.             goto nomem;

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

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

  828.         if (ffserver_save_avoption("ac", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)

  829.             goto nomem;

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

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

  832.         if (ffserver_save_avoption("ar", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)

  833.             goto nomem;

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

  835.         int minrate, maxrate;

  836.         char *dash;

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

  838.         dash = strchr(arg, '-');

  839.         if (dash) {

  840.             *dash = '\0';

  841.             dash++;

  842.             if (ffserver_set_int_param(&minrate, arg,  1000, 0, INT_MAX, config, "Invalid %s: %s", cmd, arg) >= 0 &&

  843.                 ffserver_set_int_param(&maxrate, dash, 1000, 0, INT_MAX, config, "Invalid %s: %s", cmd, arg) >= 0) {

  844.                 if (ffserver_save_avoption_int("minrate", minrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0 ||

  845.                     ffserver_save_avoption_int("maxrate", maxrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  846.                 goto nomem;

  847.             }

  848.         } else

  849.             ERROR("Incorrect format for VideoBitRateRange -- should be "

  850.                     "<min>-<max>: %s\n", arg);

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

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

  853.         if (ffserver_save_avoption("debug", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 ||

  854.             ffserver_save_avoption("debug", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  855.             goto nomem;

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

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

  858.         if (ffserver_save_avoption("strict", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 ||

  859.             ffserver_save_avoption("strict", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  860.             goto nomem;

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

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

  863.         ffserver_set_int_param(&val, arg, 8*1024, 0, INT_MAX, config,

  864.                 "Invalid %s: %s", cmd, arg);

  865.         if (ffserver_save_avoption_int("bufsize", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  866.             goto nomem;

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

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

  869.         ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,

  870.                 "Invalid %s: %s", cmd, arg);

  871.         if (ffserver_save_avoption_int("bt", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  872.             goto nomem;

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

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

  875.         ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,

  876.                 "Invalid %s: %s", cmd, arg);

  877.         if (ffserver_save_avoption_int("b", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  878.            goto nomem;

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

  880.         int ret, w, h;

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

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

  883.         if (ret < 0)

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

  885.         else {

  886.             if (w % 2 || h % 2)

  887.                 WARNING("Image size is not a multiple of 2\n");

  888.             if (ffserver_save_avoption("video_size", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  889.                 goto nomem;

  890.         }

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

  892.         ffserver_get_arg(&arg[2], sizeof(arg) - 2, p);

  893.         arg[0] = '1'; arg[1] = '/';

  894.         if (ffserver_save_avoption("time_base", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  895.             goto nomem;

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

  897.         enum AVPixelFormat pix_fmt;

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

  899.         pix_fmt = av_get_pix_fmt(arg);

  900.         if (pix_fmt == AV_PIX_FMT_NONE)

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

  902.         else if (ffserver_save_avoption("pixel_format", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  903.             goto nomem;

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

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

  906.         if (ffserver_save_avoption("g", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  907.             goto nomem;

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

  909.         if (ffserver_save_avoption("g", "1", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  910.             goto nomem;

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

  912.         if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  913.             goto nomem;

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

  915.         if (ffserver_save_avoption("mbd", "+bits",  AV_OPT_FLAG_VIDEO_PARAM, config) < 0 || //FIXME remove

  916.             ffserver_save_avoption("flags", "+mv4", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  917.             goto nomem;

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

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

  920.         int ret;

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

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

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

  924.             ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_VIDEO_PARAM, config);

  925.         else

  926.             ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_AUDIO_PARAM, config);

  927.         if (ret < 0)

  928.             goto nomem;

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

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

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

  932.         if (!av_strcasecmp(cmd, "AVPresetVideo"))

  933.             ffserver_opt_preset(arg, AV_OPT_FLAG_VIDEO_PARAM, config);

  934.         else

  935.             ffserver_opt_preset(arg, AV_OPT_FLAG_AUDIO_PARAM, config);

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

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

  938.         if (strlen(arg) == 4 &&

  939.             ffserver_save_avoption_int("codec_tag", MKTAG(arg[0], arg[1], arg[2], arg[3]),

  940.                                        AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  941.             goto nomem;

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

  943.         if (ffserver_save_avoption("flags", "+bitexact", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  944.             goto nomem;

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

  946.         if (ffserver_save_avoption("dct", "fastint", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  947.             goto nomem;

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

  949.         if (ffserver_save_avoption("idct", "simple", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  950.             goto nomem;

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

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

  953.         ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,

  954.                                "Invalid Qscale: %s\n", arg);

  955.         if (ffserver_save_avoption("flags", "+qscale", AV_OPT_FLAG_VIDEO_PARAM, config) < 0 ||

  956.             ffserver_save_avoption_int("global_quality", FF_QP2LAMBDA * val,

  957.                                        AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  958.             goto nomem;

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

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

  961.         if (ffserver_save_avoption("qdiff", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  962.             goto nomem;

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

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

  965.         if (ffserver_save_avoption("qmax", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  966.             goto nomem;

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

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

  969.         if (ffserver_save_avoption("qmin", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  970.             goto nomem;

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

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

  973.         if (ffserver_save_avoption("lumi_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  974.             goto nomem;

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

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

  977.         if (ffserver_save_avoption("dark_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)

  978.             goto nomem;

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

  980.         config->no_video = 1;

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

  982.         config->no_audio = 1;

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

  984.         ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename,

  985.                 config->line_num);

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

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

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

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

  990.         av_freep(&stream->rtsp_option);

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

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

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

  994.         if (resolve_host(&stream->multicast_ip, arg))

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

  996.         stream->is_multicast = 1;

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

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

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

  1000.         ffserver_set_int_param(&val, arg, 0, 1, 65535, config,

  1001.                 "Invalid MulticastPort: %s\n", arg);

  1002.         stream->multicast_port = val;

  1003.     } else if (!av_strcasecmp(cmd, "MulticastTTL")) {

  1004.         ffserver_get_arg(arg, sizeof(arg), p);

  1005.         ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,

  1006.                 "Invalid MulticastTTL: %s\n", arg);

  1007.         stream->multicast_ttl = val;

  1008.     } else if (!av_strcasecmp(cmd, "NoLoop")) {

  1009.         stream->loop = 0;

  1010.     } else if (!av_strcasecmp(cmd, "</Stream>")) {

  1011.         if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm")) {

  1012.             if (config->dummy_actx->codec_id == AV_CODEC_ID_NONE)

  1013.                 config->dummy_actx->codec_id = config->guessed_audio_codec_id;

  1014.             if (!config->no_audio && config->dummy_actx->codec_id != AV_CODEC_ID_NONE) {

  1015.                 AVCodecContext *audio_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_actx->codec_id));

  1016.                 ffserver_apply_stream_config(audio_enc, &config->audio_opts);

  1017.                 add_codec(stream, audio_enc);

  1018.             }

  1019.             if (config->dummy_vctx->codec_id == AV_CODEC_ID_NONE)

  1020.                 config->dummy_vctx->codec_id = config->guessed_video_codec_id;

  1021.             if (!config->no_video && config->dummy_vctx->codec_id != AV_CODEC_ID_NONE) {

  1022.                 AVCodecContext *video_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_vctx->codec_id));

  1023.                 ffserver_apply_stream_config(video_enc, &config->video_opts);

  1024.                 add_codec(stream, video_enc);

  1025.             }

  1026.         }

  1027.         av_dict_free(&config->video_opts);

  1028.         av_dict_free(&config->audio_opts);

  1029.         avcodec_free_context(&config->dummy_vctx);

  1030.         avcodec_free_context(&config->dummy_actx);

  1031.         *pstream = NULL;

  1032.     } else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) {

  1033.         ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename),

  1034.                 p);

  1035.     } else {

  1036.         ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);

  1037.     }

  1038.     return 0;

  1039.   nomem:

  1040.     av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");

  1041.     av_dict_free(&config->video_opts);

  1042.     av_dict_free(&config->audio_opts);

  1043.     avcodec_free_context(&config->dummy_vctx);

  1044.     avcodec_free_context(&config->dummy_actx);

  1045.     return AVERROR(ENOMEM);

  1046. }

  1047. 

  1048. static int ffserver_parse_config_redirect(FFServerConfig *config, const char *cmd, const char **p,

  1049.                                           FFServerStream **predirect)

  1050. {

  1051.     FFServerStream *redirect;

  1052.     av_assert0(predirect);

  1053.     redirect = *predirect;

  1054. 

  1055.     if (!av_strcasecmp(cmd, "<Redirect")) {

  1056.         char *q;

  1057.         redirect = av_mallocz(sizeof(FFServerStream));

  1058.         if (!redirect)

  1059.             return AVERROR(ENOMEM);

  1060. 

  1061.         ffserver_get_arg(redirect->filename, sizeof(redirect->filename), p);

  1062.         q = strrchr(redirect->filename, '>');

  1063.         if (*q)

  1064.             *q = '\0';

  1065.         redirect->stream_type = STREAM_TYPE_REDIRECT;

  1066.         *predirect = redirect;

  1067.         return 0;

  1068.     }

  1069.     av_assert0(redirect);

  1070.     if (!av_strcasecmp(cmd, "URL")) {

  1071.         ffserver_get_arg(redirect->feed_filename,

  1072.                 sizeof(redirect->feed_filename), p);

  1073.     } else if (!av_strcasecmp(cmd, "</Redirect>")) {

  1074.         if (!redirect->feed_filename[0])

  1075.             ERROR("No URL found for <Redirect>\n");

  1076.         *predirect = NULL;

  1077.     } else {

  1078.         ERROR("Invalid entry '%s' inside <Redirect></Redirect>\n", cmd);

  1079.     }

  1080.     return 0;

  1081. }

  1082. 

  1083. int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)

  1084. {

  1085.     FILE *f;

  1086.     char line[1024];

  1087.     char cmd[64];

  1088.     const char *p;

  1089.     FFServerStream **last_stream, *stream = NULL, *redirect = NULL;

  1090.     FFServerStream **last_feed, *feed = NULL;

  1091.     int ret = 0;

  1092. 

  1093.     av_assert0(config);

  1094. 

  1095.     config->line_num = 0;

  1096.     f = fopen(filename, "r");

  1097.     if (!f) {

  1098.         ret = AVERROR(errno);

  1099.         av_log(NULL, AV_LOG_ERROR,

  1100.                 "Could not open the configuration file '%s'\n", filename);

  1101.         return ret;

  1102.     }

  1103. 

  1104.     config->first_stream = NULL;

  1105.     last_stream = &config->first_stream;

  1106.     config->first_feed = NULL;

  1107.     last_feed = &config->first_feed;

  1108.     config->errors = config->warnings = 0;

  1109. 

  1110.     for(;;) {

  1111.         if (fgets(line, sizeof(line), f) == NULL)

  1112.             break;

  1113.         config->line_num++;

  1114.         p = line;

  1115.         while (av_isspace(*p))

  1116.             p++;

  1117.         if (*p == '\0' || *p == '#')

  1118.             continue;

  1119. 

  1120.         ffserver_get_arg(cmd, sizeof(cmd), &p);

  1121. 

  1122.         if (feed || !av_strcasecmp(cmd, "<Feed")) {

  1123.             int opening = !av_strcasecmp(cmd, "<Feed");

  1124.             if (opening && (stream || feed || redirect)) {

  1125.                 ERROR("Already in a tag\n");

  1126.             } else {

  1127.                 if ((ret = ffserver_parse_config_feed(config, cmd, &p, &feed)) < 0)

  1128.                     break;

  1129.                 if (opening) {

  1130.                     /* add in stream list */

  1131.                     *last_stream = feed;

  1132.                     last_stream = &feed->next;

  1133.                     /* add in feed list */

  1134.                     *last_feed = feed;

  1135.                     last_feed = &feed->next_feed;

  1136.                 }

  1137.             }

  1138.         } else if (stream || !av_strcasecmp(cmd, "<Stream")) {

  1139.             int opening = !av_strcasecmp(cmd, "<Stream");

  1140.             if (opening && (stream || feed || redirect)) {

  1141.                 ERROR("Already in a tag\n");

  1142.             } else {

  1143.                 if ((ret = ffserver_parse_config_stream(config, cmd, &p, &stream)) < 0)

  1144.                     break;

  1145.                 if (opening) {

  1146.                     /* add in stream list */

  1147.                     *last_stream = stream;

  1148.                     last_stream = &stream->next;

  1149.                 }

  1150.             }

  1151.         } else if (redirect || !av_strcasecmp(cmd, "<Redirect")) {

  1152.             int opening = !av_strcasecmp(cmd, "<Redirect");

  1153.             if (opening && (stream || feed || redirect))

  1154.                 ERROR("Already in a tag\n");

  1155.             else {

  1156.                 if ((ret = ffserver_parse_config_redirect(config, cmd, &p, &redirect)) < 0)

  1157.                     break;

  1158.                 if (opening) {

  1159.                     /* add in stream list */

  1160.                     *last_stream = redirect;

  1161.                     last_stream = &redirect->next;

  1162.                 }

  1163.             }

  1164.         } else {

  1165.             ffserver_parse_config_global(config, cmd, &p);

  1166.         }

  1167.     }

  1168.     if (stream || feed || redirect)

  1169.         ERROR("Not closed tag %s\n", stream ? "<Stream>" : (feed ? "<Feed>" : "<Redirect>"));

  1170. 

  1171.     fclose(f);

  1172.     if (ret < 0)

  1173.         return ret;

  1174.     if (config->errors)

  1175.         return AVERROR(EINVAL);

  1176.     else

  1177.         return 0;

  1178. }

  1179. 

  1180. #undef ERROR

  1181. #undef WARNING