/* * Copyright (c) 2000, 2001, 2002 Fabrice Bellard * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include "libavutil/opt.h" #include "libavutil/parseutils.h" #include "libavutil/avstring.h" #include "libavutil/pixdesc.h" #include "libavutil/avassert.h" // FIXME those are internal headers, ffserver _really_ shouldn't use them #include "libavformat/ffm.h" #include "cmdutils.h" #include "ffserver_config.h" #define MAX_CHILD_ARGS 64 static int ffserver_save_avoption(const char *opt, const char *arg, int type, FFServerConfig *config); static void vreport_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, va_list vl); static void report_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, ...); #define ERROR(...) report_config_error(config->filename, config->line_num,\ AV_LOG_ERROR, &config->errors, __VA_ARGS__) #define WARNING(...) report_config_error(config->filename, config->line_num,\ AV_LOG_WARNING, &config->warnings, __VA_ARGS__) /* FIXME: make ffserver work with IPv6 */ /* resolve host with also IP address parsing */ static int resolve_host(struct in_addr *sin_addr, const char *hostname) { if (!ff_inet_aton(hostname, sin_addr)) { #if HAVE_GETADDRINFO struct addrinfo *ai, *cur; struct addrinfo hints = { 0 }; hints.ai_family = AF_INET; if (getaddrinfo(hostname, NULL, &hints, &ai)) return -1; /* getaddrinfo returns a linked list of addrinfo structs. * Even if we set ai_family = AF_INET above, make sure * that the returned one actually is of the correct type. */ for (cur = ai; cur; cur = cur->ai_next) { if (cur->ai_family == AF_INET) { *sin_addr = ((struct sockaddr_in *)cur->ai_addr)->sin_addr; freeaddrinfo(ai); return 0; } } freeaddrinfo(ai); return -1; #else struct hostent *hp; hp = gethostbyname(hostname); if (!hp) return -1; memcpy(sin_addr, hp->h_addr_list[0], sizeof(struct in_addr)); #endif } return 0; } void ffserver_get_arg(char *buf, int buf_size, const char **pp) { const char *p; char *q; int quote; p = *pp; while (av_isspace(*p)) p++; q = buf; quote = 0; if (*p == '\"' || *p == '\'') quote = *p++; for(;;) { if (quote) { if (*p == quote) break; } else { if (av_isspace(*p)) break; } if (*p == '\0') break; if ((q - buf) < buf_size - 1) *q++ = *p; p++; } *q = '\0'; if (quote && *p == quote) p++; *pp = p; } void ffserver_parse_acl_row(FFServerStream *stream, FFServerStream* feed, FFServerIPAddressACL *ext_acl, const char *p, const char *filename, int line_num) { char arg[1024]; FFServerIPAddressACL acl; int errors = 0; ffserver_get_arg(arg, sizeof(arg), &p); if (av_strcasecmp(arg, "allow") == 0) acl.action = IP_ALLOW; else if (av_strcasecmp(arg, "deny") == 0) acl.action = IP_DENY; else { fprintf(stderr, "%s:%d: ACL action '%s' is not ALLOW or DENY\n", filename, line_num, arg); errors++; } ffserver_get_arg(arg, sizeof(arg), &p); if (resolve_host(&acl.first, arg)) { fprintf(stderr, "%s:%d: ACL refers to invalid host or IP address '%s'\n", filename, line_num, arg); errors++; } else acl.last = acl.first; ffserver_get_arg(arg, sizeof(arg), &p); if (arg[0]) { if (resolve_host(&acl.last, arg)) { fprintf(stderr, "%s:%d: ACL refers to invalid host or IP address '%s'\n", filename, line_num, arg); errors++; } } if (!errors) { FFServerIPAddressACL *nacl = av_mallocz(sizeof(*nacl)); FFServerIPAddressACL **naclp = 0; acl.next = 0; *nacl = acl; if (stream) naclp = &stream->acl; else if (feed) naclp = &feed->acl; else if (ext_acl) naclp = &ext_acl; else { fprintf(stderr, "%s:%d: ACL found not in or \n", filename, line_num); errors++; } if (naclp) { while (*naclp) naclp = &(*naclp)->next; *naclp = nacl; } else av_free(nacl); } } /* add a codec and set the default parameters */ static void add_codec(FFServerStream *stream, AVCodecContext *av, FFServerConfig *config) { AVStream *st; AVDictionary **opts, *recommended = NULL; char *enc_config; if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams)) return; opts = av->codec_type == AVMEDIA_TYPE_AUDIO ? &config->audio_opts : &config->video_opts; av_dict_copy(&recommended, *opts, 0); av_opt_set_dict2(av->priv_data, opts, AV_OPT_SEARCH_CHILDREN); av_opt_set_dict2(av, opts, AV_OPT_SEARCH_CHILDREN); if (av_dict_count(*opts)) av_log(NULL, AV_LOG_WARNING, "Something is wrong, %d options are not set!\n", av_dict_count(*opts)); if (config->stream_use_defaults) { //TODO: reident /* compute default parameters */ switch(av->codec_type) { case AVMEDIA_TYPE_AUDIO: if (!av_dict_get(recommended, "ab", NULL, 0)) { av->bit_rate = 64000; av_dict_set_int(&recommended, "ab", av->bit_rate, 0); WARNING("Setting default value for audio bit rate = %d. " "Use NoDefaults to disable it.\n", av->bit_rate); } if (!av_dict_get(recommended, "ar", NULL, 0)) { av->sample_rate = 22050; av_dict_set_int(&recommended, "ar", av->sample_rate, 0); WARNING("Setting default value for audio sample rate = %d. " "Use NoDefaults to disable it.\n", av->sample_rate); } if (!av_dict_get(recommended, "ac", NULL, 0)) { av->channels = 1; av_dict_set_int(&recommended, "ac", av->channels, 0); WARNING("Setting default value for audio channel count = %d. " "Use NoDefaults to disable it.\n", av->channels); } break; case AVMEDIA_TYPE_VIDEO: if (!av_dict_get(recommended, "b", NULL, 0)) { av->bit_rate = 64000; av_dict_set_int(&recommended, "b", av->bit_rate, 0); WARNING("Setting default value for video bit rate = %d. " "Use NoDefaults to disable it.\n", av->bit_rate); } if (!av_dict_get(recommended, "time_base", NULL, 0)){ av->time_base.den = 5; av->time_base.num = 1; av_dict_set(&recommended, "time_base", "1/5", 0); WARNING("Setting default value for video frame rate = %d. " "Use NoDefaults to disable it.\n", av->time_base.den); } if (!av_dict_get(recommended, "video_size", NULL, 0)) { av->width = 160; av->height = 128; av_dict_set(&recommended, "video_size", "160x128", 0); WARNING("Setting default value for video size = %dx%d. " "Use NoDefaults to disable it.\n", av->width, av->height); } /* Bitrate tolerance is less for streaming */ if (!av_dict_get(recommended, "bt", NULL, 0)) { av->bit_rate_tolerance = FFMAX(av->bit_rate / 4, (int64_t)av->bit_rate*av->time_base.num/av->time_base.den); av_dict_set_int(&recommended, "bt", av->bit_rate_tolerance, 0); WARNING("Setting default value for video bit rate tolerance = %d. " "Use NoDefaults to disable it.\n", av->bit_rate_tolerance); } if (!av_dict_get(recommended, "rc_eq", NULL, 0)) { av->rc_eq = av_strdup("tex^qComp"); av_dict_set(&recommended, "rc_eq", "tex^qComp", 0); WARNING("Setting default value for video rate control equation = %s. " "Use NoDefaults to disable it.\n", av->rc_eq); } if (!av_dict_get(recommended, "maxrate", NULL, 0)) { av->rc_max_rate = av->bit_rate * 2; av_dict_set_int(&recommended, "maxrate", av->rc_max_rate, 0); WARNING("Setting default value for video max rate = %d. " "Use NoDefaults to disable it.\n", av->rc_max_rate); } if (av->rc_max_rate && !av_dict_get(recommended, "bufsize", NULL, 0)) { av->rc_buffer_size = av->rc_max_rate; av_dict_set_int(&recommended, "bufsize", av->rc_buffer_size, 0); WARNING("Setting default value for video buffer size = %d. " "Use NoDefaults to disable it.\n", av->rc_buffer_size); } break; default: abort(); } } else { switch(av->codec_type) { case AVMEDIA_TYPE_AUDIO: if (av->bit_rate == 0) report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "audio bit rate is not set\n"); if (av->sample_rate == 0) report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "audio sample rate is not set\n"); break; case AVMEDIA_TYPE_VIDEO: if (av->width == 0 || av->height == 0) report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "video size is not set\n"); break; default: av_assert0(0); } } st = av_mallocz(sizeof(AVStream)); if (!st) return; av_dict_get_string(recommended, &enc_config, '=', ','); av_dict_free(&recommended); av_stream_set_recommended_encoder_configuration(st, enc_config); st->codec = av; stream->streams[stream->nb_streams++] = st; } static int ffserver_set_codec(AVCodecContext *ctx, const char *codec_name, FFServerConfig *config) { int ret; AVCodec *codec = avcodec_find_encoder_by_name(codec_name); if (!codec || codec->type != ctx->codec_type) { report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "Invalid codec name: %s\n", codec_name); return 0; } if (ctx->codec_id == AV_CODEC_ID_NONE && !ctx->priv_data) { if ((ret = avcodec_get_context_defaults3(ctx, codec)) < 0) return ret; ctx->codec = codec; } if (ctx->codec_id != codec->id) report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "Inconsistent configuration: trying to set %s codec option, but %s codec is used previously\n", codec_name, avcodec_get_name(ctx->codec_id)); return 0; } static int ffserver_opt_preset(const char *arg, int type, FFServerConfig *config) { FILE *f=NULL; char filename[1000], tmp[1000], tmp2[1000], line[1000]; int ret = 0; AVCodecContext *avctx; const AVCodec *codec; switch(type) { case AV_OPT_FLAG_AUDIO_PARAM: avctx = config->dummy_actx; break; case AV_OPT_FLAG_VIDEO_PARAM: avctx = config->dummy_vctx; break; default: av_assert0(0); } codec = avcodec_find_encoder(avctx->codec_id); if (!(f = get_preset_file(filename, sizeof(filename), arg, 0, codec ? codec->name : NULL))) { av_log(NULL, AV_LOG_ERROR, "File for preset '%s' not found\n", arg); return AVERROR(EINVAL); } while(!feof(f)){ int e= fscanf(f, "%999[^\n]\n", line) - 1; if(line[0] == '#' && !e) continue; e|= sscanf(line, "%999[^=]=%999[^\n]\n", tmp, tmp2) - 2; if(e){ av_log(NULL, AV_LOG_ERROR, "%s: Invalid syntax: '%s'\n", filename, line); ret = AVERROR(EINVAL); break; } if ((!strcmp(tmp, "acodec") && avctx->codec_type == AVMEDIA_TYPE_AUDIO) || !strcmp(tmp, "vcodec") && avctx->codec_type == AVMEDIA_TYPE_VIDEO) { if (ffserver_set_codec(avctx, tmp2, config) < 0) break; } else if (!strcmp(tmp, "scodec")) { av_log(NULL, AV_LOG_ERROR, "Subtitles preset found.\n"); ret = AVERROR(EINVAL); break; } else if (ffserver_save_avoption(tmp, tmp2, type, config) < 0) break; } fclose(f); return ret; } static AVOutputFormat *ffserver_guess_format(const char *short_name, const char *filename, const char *mime_type) { AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type); if (fmt) { AVOutputFormat *stream_fmt; char stream_format_name[64]; snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream", fmt->name); stream_fmt = av_guess_format(stream_format_name, NULL, NULL); if (stream_fmt) fmt = stream_fmt; } return fmt; } static void vreport_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, va_list vl) { av_log(NULL, log_level, "%s:%d: ", filename, line_num); av_vlog(NULL, log_level, fmt, vl); if (errors) (*errors)++; } static void report_config_error(const char *filename, int line_num, int log_level, int *errors, const char *fmt, ...) { va_list vl; va_start(vl, fmt); vreport_config_error(filename, line_num, log_level, errors, fmt, vl); va_end(vl); } static int ffserver_set_int_param(int *dest, const char *value, int factor, int min, int max, FFServerConfig *config, const char *error_msg, ...) { int tmp; char *tailp; if (!value || !value[0]) goto error; errno = 0; tmp = strtol(value, &tailp, 0); if (tmp < min || tmp > max) goto error; if (factor) { if (FFABS(tmp) > INT_MAX / FFABS(factor)) goto error; tmp *= factor; } if (tailp[0] || errno) goto error; if (dest) *dest = tmp; return 0; error: if (config) { va_list vl; va_start(vl, error_msg); vreport_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, error_msg, vl); va_end(vl); } return AVERROR(EINVAL); } static int ffserver_set_float_param(float *dest, const char *value, float factor, float min, float max, FFServerConfig *config, const char *error_msg, ...) { double tmp; char *tailp; if (!value || !value[0]) goto error; errno = 0; tmp = strtod(value, &tailp); if (tmp < min || tmp > max) goto error; if (factor) tmp *= factor; if (tailp[0] || errno) goto error; if (dest) *dest = tmp; return 0; error: if (config) { va_list vl; va_start(vl, error_msg); vreport_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, error_msg, vl); va_end(vl); } return AVERROR(EINVAL); } static int ffserver_save_avoption(const char *opt, const char *arg, int type, FFServerConfig *config) { static int hinted = 0; int ret = 0; AVDictionaryEntry *e; const AVOption *o = NULL; const char *option = NULL; const char *codec_name = NULL; char buff[1024]; AVCodecContext *ctx; AVDictionary **dict; enum AVCodecID guessed_codec_id; switch (type) { case AV_OPT_FLAG_VIDEO_PARAM: ctx = config->dummy_vctx; dict = &config->video_opts; guessed_codec_id = config->guessed_video_codec_id != AV_CODEC_ID_NONE ? config->guessed_video_codec_id : AV_CODEC_ID_H264; break; case AV_OPT_FLAG_AUDIO_PARAM: ctx = config->dummy_actx; dict = &config->audio_opts; guessed_codec_id = config->guessed_audio_codec_id != AV_CODEC_ID_NONE ? config->guessed_audio_codec_id : AV_CODEC_ID_AAC; break; default: av_assert0(0); } if (strchr(opt, ':')) { //explicit private option snprintf(buff, sizeof(buff), "%s", opt); codec_name = buff; option = strchr(buff, ':'); buff[option - buff] = '\0'; option++; if ((ret = ffserver_set_codec(ctx, codec_name, config)) < 0) return ret; if (!ctx->codec || !ctx->priv_data) return -1; } else { option = opt; } o = av_opt_find(ctx, option, NULL, type | AV_OPT_FLAG_ENCODING_PARAM, AV_OPT_SEARCH_CHILDREN); if (!o && (!strcmp(option, "time_base") || !strcmp(option, "pixel_format") || !strcmp(option, "video_size") || !strcmp(option, "codec_tag"))) o = av_opt_find(ctx, option, NULL, 0, 0); if (!o) { report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "Option not found: %s\n", opt); if (!hinted && ctx->codec_id == AV_CODEC_ID_NONE) { hinted = 1; report_config_error(config->filename, config->line_num, AV_LOG_ERROR, NULL, "If '%s' is a codec private option, then prefix it with codec name, " "for example '%s:%s %s' or define codec earlier.\n", opt, avcodec_get_name(guessed_codec_id) ,opt, arg); } } else if ((ret = av_opt_set(ctx, option, arg, AV_OPT_SEARCH_CHILDREN)) < 0) { report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "Invalid value for option %s (%s): %s\n", opt, arg, av_err2str(ret)); } else if ((e = av_dict_get(*dict, option, NULL, 0))) { if ((o->type == AV_OPT_TYPE_FLAGS) && arg && (arg[0] == '+' || arg[0] == '-')) return av_dict_set(dict, option, arg, AV_DICT_APPEND); report_config_error(config->filename, config->line_num, AV_LOG_ERROR, &config->errors, "Redeclaring value of the option %s, previous value: %s\n", opt, e->value); } else if (av_dict_set(dict, option, arg, 0) < 0) { return AVERROR(ENOMEM); } return 0; } static int ffserver_save_avoption_int(const char *opt, int64_t arg, int type, FFServerConfig *config) { char buf[22]; snprintf(buf, sizeof(buf), "%"PRId64, arg); return ffserver_save_avoption(opt, buf, type, config); } static int ffserver_parse_config_global(FFServerConfig *config, const char *cmd, const char **p) { int val; char arg[1024]; if (!av_strcasecmp(cmd, "Port") || !av_strcasecmp(cmd, "HTTPPort")) { if (!av_strcasecmp(cmd, "Port")) WARNING("Port option is deprecated, use HTTPPort instead\n"); ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 0, 1, 65535, config, "Invalid port: %s\n", arg); if (val < 1024) WARNING("Trying to use IETF assigned system port: %d\n", val); config->http_addr.sin_port = htons(val); } else if (!av_strcasecmp(cmd, "HTTPBindAddress") || !av_strcasecmp(cmd, "BindAddress")) { if (!av_strcasecmp(cmd, "BindAddress")) WARNING("BindAddress option is deprecated, use HTTPBindAddress instead\n"); ffserver_get_arg(arg, sizeof(arg), p); if (resolve_host(&config->http_addr.sin_addr, arg)) ERROR("Invalid host/IP address: %s\n", arg); } else if (!av_strcasecmp(cmd, "NoDaemon")) { WARNING("NoDaemon option has no effect, you should remove it\n"); } else if (!av_strcasecmp(cmd, "RTSPPort")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 0, 1, 65535, config, "Invalid port: %s\n", arg); config->rtsp_addr.sin_port = htons(val); } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) { ffserver_get_arg(arg, sizeof(arg), p); if (resolve_host(&config->rtsp_addr.sin_addr, arg)) ERROR("Invalid host/IP address: %s\n", arg); } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 0, 1, 65535, config, "Invalid MaxHTTPConnections: %s\n", arg); config->nb_max_http_connections = val; if (config->nb_max_connections > config->nb_max_http_connections) ERROR("Inconsistent configuration: MaxClients(%d) > MaxHTTPConnections(%d)\n", config->nb_max_connections, config->nb_max_http_connections); } else if (!av_strcasecmp(cmd, "MaxClients")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 0, 1, 65535, config, "Invalid MaxClients: %s\n", arg); config->nb_max_connections = val; if (config->nb_max_connections > config->nb_max_http_connections) ERROR("Inconsistent configuration: MaxClients(%d) > MaxHTTPConnections(%d)\n", config->nb_max_connections, config->nb_max_http_connections); } else if (!av_strcasecmp(cmd, "MaxBandwidth")) { int64_t llval; char *tailp; ffserver_get_arg(arg, sizeof(arg), p); errno = 0; llval = strtoll(arg, &tailp, 10); if (llval < 10 || llval > 10000000 || tailp[0] || errno) ERROR("Invalid MaxBandwidth: %s\n", arg); else config->max_bandwidth = llval; } else if (!av_strcasecmp(cmd, "CustomLog")) { if (!config->debug) ffserver_get_arg(config->logfilename, sizeof(config->logfilename), p); } else if (!av_strcasecmp(cmd, "LoadModule")) { ERROR("Loadable modules are no longer supported\n"); } else if (!av_strcasecmp(cmd, "NoDefaults")) { config->use_defaults = 0; } else if (!av_strcasecmp(cmd, "UseDefaults")) { config->use_defaults = 1; } else ERROR("Incorrect keyword: '%s'\n", cmd); return 0; } static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd, const char **p, FFServerStream **pfeed) { FFServerStream *feed; char arg[1024]; av_assert0(pfeed); feed = *pfeed; if (!av_strcasecmp(cmd, "filename, sizeof(feed->filename), p); q = strrchr(feed->filename, '>'); if (*q) *q = '\0'; for (s = config->first_feed; s; s = s->next) { if (!strcmp(feed->filename, s->filename)) ERROR("Feed '%s' already registered\n", s->filename); } feed->fmt = av_guess_format("ffm", NULL, NULL); /* default feed file */ snprintf(feed->feed_filename, sizeof(feed->feed_filename), "/tmp/%s.ffm", feed->filename); feed->feed_max_size = 5 * 1024 * 1024; feed->is_feed = 1; feed->feed = feed; /* self feeding :-) */ *pfeed = feed; return 0; } av_assert0(feed); if (!av_strcasecmp(cmd, "Launch")) { int i; feed->child_argv = av_mallocz_array(MAX_CHILD_ARGS, sizeof(char *)); if (!feed->child_argv) return AVERROR(ENOMEM); for (i = 0; i < MAX_CHILD_ARGS - 2; i++) { ffserver_get_arg(arg, sizeof(arg), p); if (!arg[0]) break; feed->child_argv[i] = av_strdup(arg); if (!feed->child_argv[i]) return AVERROR(ENOMEM); } feed->child_argv[i] = av_asprintf("http://%s:%d/%s", (config->http_addr.sin_addr.s_addr == INADDR_ANY) ? "127.0.0.1" : inet_ntoa(config->http_addr.sin_addr), ntohs(config->http_addr.sin_port), feed->filename); if (!feed->child_argv[i]) return AVERROR(ENOMEM); } else if (!av_strcasecmp(cmd, "ACL")) { ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename, config->line_num); } else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) { ffserver_get_arg(feed->feed_filename, sizeof(feed->feed_filename), p); feed->readonly = !av_strcasecmp(cmd, "ReadOnlyFile"); } else if (!av_strcasecmp(cmd, "Truncate")) { ffserver_get_arg(arg, sizeof(arg), p); /* assume Truncate is true in case no argument is specified */ if (!arg[0]) { feed->truncate = 1; } else { WARNING("Truncate N syntax in configuration file is deprecated, " "use Truncate alone with no arguments\n"); feed->truncate = strtod(arg, NULL); } } else if (!av_strcasecmp(cmd, "FileMaxSize")) { char *p1; double fsize; ffserver_get_arg(arg, sizeof(arg), p); p1 = arg; fsize = strtod(p1, &p1); switch(av_toupper(*p1)) { case 'K': fsize *= 1024; break; case 'M': fsize *= 1024 * 1024; break; case 'G': fsize *= 1024 * 1024 * 1024; break; default: ERROR("Invalid file size: %s\n", arg); break; } feed->feed_max_size = (int64_t)fsize; if (feed->feed_max_size < FFM_PACKET_SIZE*4) ERROR("Feed max file size is too small, must be at least %d\n", FFM_PACKET_SIZE*4); } else if (!av_strcasecmp(cmd, "")) { *pfeed = NULL; } else { ERROR("Invalid entry '%s' inside \n", cmd); } return 0; } static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd, const char **p, FFServerStream **pstream) { char arg[1024], arg2[1024]; FFServerStream *stream; int val; av_assert0(pstream); stream = *pstream; if (!av_strcasecmp(cmd, "dummy_actx = avcodec_alloc_context3(NULL); config->dummy_vctx = avcodec_alloc_context3(NULL); if (!config->dummy_vctx || !config->dummy_actx) { av_free(stream); avcodec_free_context(&config->dummy_vctx); avcodec_free_context(&config->dummy_actx); return AVERROR(ENOMEM); } config->dummy_actx->codec_type = AVMEDIA_TYPE_AUDIO; config->dummy_vctx->codec_type = AVMEDIA_TYPE_VIDEO; ffserver_get_arg(stream->filename, sizeof(stream->filename), p); q = strrchr(stream->filename, '>'); if (q) *q = '\0'; for (s = config->first_stream; s; s = s->next) { if (!strcmp(stream->filename, s->filename)) ERROR("Stream '%s' already registered\n", s->filename); } stream->fmt = ffserver_guess_format(NULL, stream->filename, NULL); if (stream->fmt) { config->guessed_audio_codec_id = stream->fmt->audio_codec; config->guessed_video_codec_id = stream->fmt->video_codec; } else { config->guessed_audio_codec_id = AV_CODEC_ID_NONE; config->guessed_video_codec_id = AV_CODEC_ID_NONE; } config->stream_use_defaults = config->use_defaults; *pstream = stream; return 0; } av_assert0(stream); if (!av_strcasecmp(cmd, "Feed")) { FFServerStream *sfeed; ffserver_get_arg(arg, sizeof(arg), p); sfeed = config->first_feed; while (sfeed) { if (!strcmp(sfeed->filename, arg)) break; sfeed = sfeed->next_feed; } if (!sfeed) ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg, stream->filename); else stream->feed = sfeed; } else if (!av_strcasecmp(cmd, "Format")) { ffserver_get_arg(arg, sizeof(arg), p); if (!strcmp(arg, "status")) { stream->stream_type = STREAM_TYPE_STATUS; stream->fmt = NULL; } else { stream->stream_type = STREAM_TYPE_LIVE; /* JPEG cannot be used here, so use single frame MJPEG */ if (!strcmp(arg, "jpeg")) strcpy(arg, "mjpeg"); stream->fmt = ffserver_guess_format(arg, NULL, NULL); if (!stream->fmt) ERROR("Unknown Format: %s\n", arg); } if (stream->fmt) { config->guessed_audio_codec_id = stream->fmt->audio_codec; config->guessed_video_codec_id = stream->fmt->video_codec; } } else if (!av_strcasecmp(cmd, "InputFormat")) { ffserver_get_arg(arg, sizeof(arg), p); stream->ifmt = av_find_input_format(arg); if (!stream->ifmt) ERROR("Unknown input format: %s\n", arg); } else if (!av_strcasecmp(cmd, "FaviconURL")) { if (stream->stream_type == STREAM_TYPE_STATUS) ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename), p); else ERROR("FaviconURL only permitted for status streams\n"); } else if (!av_strcasecmp(cmd, "Author") || !av_strcasecmp(cmd, "Comment") || !av_strcasecmp(cmd, "Copyright") || !av_strcasecmp(cmd, "Title")) { char key[32]; int i; ffserver_get_arg(arg, sizeof(arg), p); for (i = 0; i < strlen(cmd); i++) key[i] = av_tolower(cmd[i]); key[i] = 0; WARNING("'%s' option in configuration file is deprecated, " "use 'Metadata %s VALUE' instead\n", cmd, key); if (av_dict_set(&stream->metadata, key, arg, 0) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "Metadata")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_get_arg(arg2, sizeof(arg2), p); if (av_dict_set(&stream->metadata, arg, arg2, 0) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "Preroll")) { ffserver_get_arg(arg, sizeof(arg), p); stream->prebuffer = atof(arg) * 1000; } else if (!av_strcasecmp(cmd, "StartSendOnKey")) { stream->send_on_key = 1; } else if (!av_strcasecmp(cmd, "AudioCodec")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_codec(config->dummy_actx, arg, config); } else if (!av_strcasecmp(cmd, "VideoCodec")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_codec(config->dummy_vctx, arg, config); } else if (!av_strcasecmp(cmd, "MaxTime")) { ffserver_get_arg(arg, sizeof(arg), p); stream->max_time = atof(arg) * 1000; } else if (!av_strcasecmp(cmd, "AudioBitRate")) { float f; ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_float_param(&f, arg, 1000, -FLT_MAX, FLT_MAX, config, "Invalid %s: %s\n", cmd, arg); if (ffserver_save_avoption_int("ab", (int64_t)lrintf(f), AV_OPT_FLAG_AUDIO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "AudioChannels")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("ac", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "AudioSampleRate")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("ar", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) { int minrate, maxrate; char *dash; ffserver_get_arg(arg, sizeof(arg), p); dash = strchr(arg, '-'); if (dash) { *dash = '\0'; dash++; if (ffserver_set_int_param(&minrate, arg, 1000, 0, INT_MAX, config, "Invalid %s: %s", cmd, arg) >= 0 && ffserver_set_int_param(&maxrate, dash, 1000, 0, INT_MAX, config, "Invalid %s: %s", cmd, arg) >= 0) { if (ffserver_save_avoption_int("minrate", minrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0 || ffserver_save_avoption_int("maxrate", maxrate, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } } else ERROR("Incorrect format for VideoBitRateRange -- should be " "-: %s\n", arg); } else if (!av_strcasecmp(cmd, "Debug")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("debug", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 || ffserver_save_avoption("debug", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "Strict")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("strict", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0 || ffserver_save_avoption("strict", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoBufferSize")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 8*1024, 0, INT_MAX, config, "Invalid %s: %s", cmd, arg); if (ffserver_save_avoption_int("bufsize", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config, "Invalid %s: %s", cmd, arg); if (ffserver_save_avoption_int("bt", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoBitRate")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config, "Invalid %s: %s", cmd, arg); if (ffserver_save_avoption_int("b", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoSize")) { int ret, w, h; ffserver_get_arg(arg, sizeof(arg), p); ret = av_parse_video_size(&w, &h, arg); if (ret < 0) ERROR("Invalid video size '%s'\n", arg); else { if (w % 2 || h % 2) WARNING("Image size is not a multiple of 2\n"); if (ffserver_save_avoption("video_size", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } } else if (!av_strcasecmp(cmd, "VideoFrameRate")) { ffserver_get_arg(&arg[2], sizeof(arg) - 2, p); arg[0] = '1'; arg[1] = '/'; if (ffserver_save_avoption("time_base", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "PixelFormat")) { enum AVPixelFormat pix_fmt; ffserver_get_arg(arg, sizeof(arg), p); pix_fmt = av_get_pix_fmt(arg); if (pix_fmt == AV_PIX_FMT_NONE) ERROR("Unknown pixel format: %s\n", arg); else if (ffserver_save_avoption("pixel_format", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoGopSize")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("g", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) { if (ffserver_save_avoption("g", "1", AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoHighQuality")) { if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "Video4MotionVector")) { if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0 || //FIXME remove ffserver_save_avoption("flags", "+mv4", AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "AVOptionVideo") || !av_strcasecmp(cmd, "AVOptionAudio")) { int ret; ffserver_get_arg(arg, sizeof(arg), p); ffserver_get_arg(arg2, sizeof(arg2), p); if (!av_strcasecmp(cmd, "AVOptionVideo")) ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_VIDEO_PARAM, config); else ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_AUDIO_PARAM, config); if (ret < 0) goto nomem; } else if (!av_strcasecmp(cmd, "AVPresetVideo") || !av_strcasecmp(cmd, "AVPresetAudio")) { ffserver_get_arg(arg, sizeof(arg), p); if (!av_strcasecmp(cmd, "AVPresetVideo")) ffserver_opt_preset(arg, AV_OPT_FLAG_VIDEO_PARAM, config); else ffserver_opt_preset(arg, AV_OPT_FLAG_AUDIO_PARAM, config); } else if (!av_strcasecmp(cmd, "VideoTag")) { ffserver_get_arg(arg, sizeof(arg), p); if (strlen(arg) == 4 && ffserver_save_avoption_int("codec_tag", MKTAG(arg[0], arg[1], arg[2], arg[3]), AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "BitExact")) { if (ffserver_save_avoption("flags", "+bitexact", AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "DctFastint")) { if (ffserver_save_avoption("dct", "fastint", AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "IdctSimple")) { if (ffserver_save_avoption("idct", "simple", AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "Qscale")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config, "Invalid Qscale: %s\n", arg); if (ffserver_save_avoption("flags", "+qscale", AV_OPT_FLAG_VIDEO_PARAM, config) < 0 || ffserver_save_avoption_int("global_quality", FF_QP2LAMBDA * val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoQDiff")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("qdiff", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoQMax")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("qmax", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "VideoQMin")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("qmin", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "LumiMask")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("lumi_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "DarkMask")) { ffserver_get_arg(arg, sizeof(arg), p); if (ffserver_save_avoption("dark_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0) goto nomem; } else if (!av_strcasecmp(cmd, "NoVideo")) { config->no_video = 1; } else if (!av_strcasecmp(cmd, "NoAudio")) { config->no_audio = 1; } else if (!av_strcasecmp(cmd, "ACL")) { ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename, config->line_num); } else if (!av_strcasecmp(cmd, "DynamicACL")) { ffserver_get_arg(stream->dynamic_acl, sizeof(stream->dynamic_acl), p); } else if (!av_strcasecmp(cmd, "RTSPOption")) { ffserver_get_arg(arg, sizeof(arg), p); av_freep(&stream->rtsp_option); stream->rtsp_option = av_strdup(arg); } else if (!av_strcasecmp(cmd, "MulticastAddress")) { ffserver_get_arg(arg, sizeof(arg), p); if (resolve_host(&stream->multicast_ip, arg)) ERROR("Invalid host/IP address: %s\n", arg); stream->is_multicast = 1; stream->loop = 1; /* default is looping */ } else if (!av_strcasecmp(cmd, "MulticastPort")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 0, 1, 65535, config, "Invalid MulticastPort: %s\n", arg); stream->multicast_port = val; } else if (!av_strcasecmp(cmd, "MulticastTTL")) { ffserver_get_arg(arg, sizeof(arg), p); ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config, "Invalid MulticastTTL: %s\n", arg); stream->multicast_ttl = val; } else if (!av_strcasecmp(cmd, "NoLoop")) { stream->loop = 0; } else if (!av_strcasecmp(cmd, "")) { config->stream_use_defaults &= 1; if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm")) { if (config->dummy_actx->codec_id == AV_CODEC_ID_NONE) config->dummy_actx->codec_id = config->guessed_audio_codec_id; if (!config->no_audio && config->dummy_actx->codec_id != AV_CODEC_ID_NONE) { AVCodecContext *audio_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_actx->codec_id)); add_codec(stream, audio_enc, config); } if (config->dummy_vctx->codec_id == AV_CODEC_ID_NONE) config->dummy_vctx->codec_id = config->guessed_video_codec_id; if (!config->no_video && config->dummy_vctx->codec_id != AV_CODEC_ID_NONE) { AVCodecContext *video_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_vctx->codec_id)); add_codec(stream, video_enc, config); } } av_dict_free(&config->video_opts); av_dict_free(&config->audio_opts); avcodec_free_context(&config->dummy_vctx); avcodec_free_context(&config->dummy_actx); *pstream = NULL; } else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) { ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename), p); } else if (!av_strcasecmp(cmd, "UseDefaults")) { if (config->stream_use_defaults > 1) WARNING("Multiple UseDefaults/NoDefaults entries.\n"); config->stream_use_defaults = 3; } else if (!av_strcasecmp(cmd, "NoDefaults")) { if (config->stream_use_defaults > 1) WARNING("Multiple UseDefaults/NoDefaults entries.\n"); config->stream_use_defaults = 2; } else { ERROR("Invalid entry '%s' inside \n", cmd); } return 0; nomem: av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n"); av_dict_free(&config->video_opts); av_dict_free(&config->audio_opts); avcodec_free_context(&config->dummy_vctx); avcodec_free_context(&config->dummy_actx); return AVERROR(ENOMEM); } static int ffserver_parse_config_redirect(FFServerConfig *config, const char *cmd, const char **p, FFServerStream **predirect) { FFServerStream *redirect; av_assert0(predirect); redirect = *predirect; if (!av_strcasecmp(cmd, "filename, sizeof(redirect->filename), p); q = strrchr(redirect->filename, '>'); if (*q) *q = '\0'; redirect->stream_type = STREAM_TYPE_REDIRECT; *predirect = redirect; return 0; } av_assert0(redirect); if (!av_strcasecmp(cmd, "URL")) { ffserver_get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), p); } else if (!av_strcasecmp(cmd, "")) { if (!redirect->feed_filename[0]) ERROR("No URL found for \n"); *predirect = NULL; } else { ERROR("Invalid entry '%s' inside \n", cmd); } return 0; } int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config) { FILE *f; char line[1024]; char cmd[64]; const char *p; FFServerStream **last_stream, *stream = NULL, *redirect = NULL; FFServerStream **last_feed, *feed = NULL; int ret = 0; av_assert0(config); config->line_num = 0; f = fopen(filename, "r"); if (!f) { ret = AVERROR(errno); av_log(NULL, AV_LOG_ERROR, "Could not open the configuration file '%s'\n", filename); return ret; } config->first_stream = NULL; last_stream = &config->first_stream; config->first_feed = NULL; last_feed = &config->first_feed; config->errors = config->warnings = 0; for(;;) { if (fgets(line, sizeof(line), f) == NULL) break; config->line_num++; p = line; while (av_isspace(*p)) p++; if (*p == '\0' || *p == '#') continue; ffserver_get_arg(cmd, sizeof(cmd), &p); if (feed || !av_strcasecmp(cmd, "next; /* add in feed list */ *last_feed = feed; last_feed = &feed->next_feed; } } } else if (stream || !av_strcasecmp(cmd, "next; } } } else if (redirect || !av_strcasecmp(cmd, "next; } } } else { ffserver_parse_config_global(config, cmd, &p); } } if (stream || feed || redirect) ERROR("Not closed tag %s\n", stream ? "" : (feed ? "" : "")); fclose(f); if (ret < 0) return ret; if (config->errors) return AVERROR(EINVAL); else return 0; } #undef ERROR #undef WARNING void ffserver_free_child_args(void *argsp) { int i; char **args; if (!argsp) return; args = *(char ***)argsp; if (!args) return; for (i = 0; i < MAX_CHILD_ARGS; i++) av_free(args[i]); av_freep(argsp); }