ffserver_config.c 49.8 KB
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/*
 * 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
 */

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#include <float.h>
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#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"

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#define MAX_CHILD_ARGS 64

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static int ffserver_save_avoption(const char *opt, const char *arg, int type,
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                                  FFServerConfig *config);
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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,
                                ...);
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#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__)

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/* 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;
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    int quote = 0;
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    p = *pp;
    q = buf;
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    while (av_isspace(*p)) p++;

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    if (*p == '\"' || *p == '\'')
        quote = *p++;
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    while (*p != '\0') {
        if (quote && *p == quote || !quote && av_isspace(*p))
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            break;
        if ((q - buf) < buf_size - 1)
            *q++ = *p;
        p++;
    }
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    *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 {
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        fprintf(stderr, "%s:%d: ACL action '%s' should be ALLOW or DENY.\n",
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                filename, line_num, arg);
        errors++;
    }

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

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    if (resolve_host(&acl.first, arg)) {
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        fprintf(stderr,
                "%s:%d: ACL refers to invalid host or IP address '%s'\n",
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                filename, line_num, arg);
        errors++;
    } else
        acl.last = acl.first;

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

    if (arg[0]) {
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        if (resolve_host(&acl.last, arg)) {
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            fprintf(stderr,
                    "%s:%d: ACL refers to invalid host or IP address '%s'\n",
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                    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 {
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            fprintf(stderr, "%s:%d: ACL found not in <Stream> or <Feed>\n",
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                    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 */
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static void add_codec(FFServerStream *stream, AVCodecContext *av,
                      FFServerConfig *config)
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{
    AVStream *st;
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    AVDictionary **opts, *recommended = NULL;
    char *enc_config;
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    if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
        return;

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    opts = av->codec_type == AVMEDIA_TYPE_AUDIO ?
           &config->audio_opts : &config->video_opts;
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    av_dict_copy(&recommended, *opts, 0);
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    av_opt_set_dict2(av->priv_data, opts, AV_OPT_SEARCH_CHILDREN);
    av_opt_set_dict2(av, opts, AV_OPT_SEARCH_CHILDREN);
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    if (av_dict_count(*opts))
        av_log(NULL, AV_LOG_WARNING,
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               "Something is wrong, %d options are not set!\n",
               av_dict_count(*opts));
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    if (!config->stream_use_defaults) {
        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);
        }
        goto done;
    }

    /* stream_use_defaults = true */

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    /* compute default parameters */
    switch(av->codec_type) {
    case AVMEDIA_TYPE_AUDIO:
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        if (!av_dict_get(recommended, "ab", NULL, 0)) {
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            av->bit_rate = 64000;
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            av_dict_set_int(&recommended, "ab", av->bit_rate, 0);
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            WARNING("Setting default value for audio bit rate = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->bit_rate);
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        }
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        if (!av_dict_get(recommended, "ar", NULL, 0)) {
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            av->sample_rate = 22050;
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            av_dict_set_int(&recommended, "ar", av->sample_rate, 0);
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            WARNING("Setting default value for audio sample rate = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->sample_rate);
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        }
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        if (!av_dict_get(recommended, "ac", NULL, 0)) {
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            av->channels = 1;
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            av_dict_set_int(&recommended, "ac", av->channels, 0);
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            WARNING("Setting default value for audio channel count = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->channels);
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        }
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        break;
    case AVMEDIA_TYPE_VIDEO:
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        if (!av_dict_get(recommended, "b", NULL, 0)) {
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            av->bit_rate = 64000;
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            av_dict_set_int(&recommended, "b", av->bit_rate, 0);
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            WARNING("Setting default value for video bit rate = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->bit_rate);
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        }
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        if (!av_dict_get(recommended, "time_base", NULL, 0)){
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            av->time_base.den = 5;
            av->time_base.num = 1;
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            av_dict_set(&recommended, "time_base", "1/5", 0);
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            WARNING("Setting default value for video frame rate = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->time_base.den);
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        }
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        if (!av_dict_get(recommended, "video_size", NULL, 0)) {
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            av->width = 160;
            av->height = 128;
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            av_dict_set(&recommended, "video_size", "160x128", 0);
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            WARNING("Setting default value for video size = %dx%d. "
                    "Use NoDefaults to disable it.\n",
                    av->width, av->height);
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        }
        /* Bitrate tolerance is less for streaming */
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        if (!av_dict_get(recommended, "bt", NULL, 0)) {
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            av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
                      (int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
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            av_dict_set_int(&recommended, "bt", av->bit_rate_tolerance, 0);
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            WARNING("Setting default value for video bit rate tolerance = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->bit_rate_tolerance);
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        }
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        if (!av_dict_get(recommended, "rc_eq", NULL, 0)) {
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            av->rc_eq = av_strdup("tex^qComp");
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            av_dict_set(&recommended, "rc_eq", "tex^qComp", 0);
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            WARNING("Setting default value for video rate control equation = "
                    "%s. Use NoDefaults to disable it.\n",
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                    av->rc_eq);
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        }
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        if (!av_dict_get(recommended, "maxrate", NULL, 0)) {
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            av->rc_max_rate = av->bit_rate * 2;
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            av_dict_set_int(&recommended, "maxrate", av->rc_max_rate, 0);
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            WARNING("Setting default value for video max rate = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->rc_max_rate);
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        }
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        if (av->rc_max_rate && !av_dict_get(recommended, "bufsize", NULL, 0)) {
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            av->rc_buffer_size = av->rc_max_rate;
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            av_dict_set_int(&recommended, "bufsize", av->rc_buffer_size, 0);
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            WARNING("Setting default value for video buffer size = %d. "
                    "Use NoDefaults to disable it.\n",
                    av->rc_buffer_size);
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        }
        break;
    default:
        abort();
    }

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done:
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    st = av_mallocz(sizeof(AVStream));
    if (!st)
        return;
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    av_dict_get_string(recommended, &enc_config, '=', ',');
    av_dict_free(&recommended);
    av_stream_set_recommended_encoder_configuration(st, enc_config);
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    st->codec = av;
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    stream->streams[stream->nb_streams++] = st;
}

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static int ffserver_set_codec(AVCodecContext *ctx, const char *codec_name,
                              FFServerConfig *config)
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{
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    int ret;
    AVCodec *codec = avcodec_find_encoder_by_name(codec_name);
    if (!codec || codec->type != ctx->codec_type) {
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        report_config_error(config->filename, config->line_num, AV_LOG_ERROR,
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                            &config->errors,
                            "Invalid codec name: '%s'\n", codec_name);
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        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)
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        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",
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                            codec_name, avcodec_get_name(ctx->codec_id));
    return 0;
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}

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static int ffserver_opt_preset(const char *arg, int type, FFServerConfig *config)
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{
    FILE *f=NULL;
    char filename[1000], tmp[1000], tmp2[1000], line[1000];
    int ret = 0;
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    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);
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    if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
                              codec ? codec->name : NULL))) {
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        av_log(NULL, AV_LOG_ERROR, "File for preset '%s' not found\n", arg);
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        return AVERROR(EINVAL);
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    }

    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){
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            av_log(NULL, AV_LOG_ERROR, "%s: Invalid syntax: '%s'\n", filename,
                   line);
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            ret = AVERROR(EINVAL);
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            break;
        }
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        if (!strcmp(tmp, "acodec") && avctx->codec_type == AVMEDIA_TYPE_AUDIO ||
            !strcmp(tmp, "vcodec") && avctx->codec_type == AVMEDIA_TYPE_VIDEO)
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        {
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            if (ffserver_set_codec(avctx, tmp2, config) < 0)
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                break;
        } else if (!strcmp(tmp, "scodec")) {
            av_log(NULL, AV_LOG_ERROR, "Subtitles preset found.\n");
            ret = AVERROR(EINVAL);
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            break;
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        } else if (ffserver_save_avoption(tmp, tmp2, type, config) < 0)
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            break;
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    }

    fclose(f);

    return ret;
}

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static AVOutputFormat *ffserver_guess_format(const char *short_name,
                                             const char *filename,
                                             const char *mime_type)
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{
    AVOutputFormat *fmt = av_guess_format(short_name, filename, mime_type);

    if (fmt) {
        AVOutputFormat *stream_fmt;
        char stream_format_name[64];

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        snprintf(stream_format_name, sizeof(stream_format_name), "%s_stream",
                fmt->name);
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        stream_fmt = av_guess_format(stream_format_name, NULL, NULL);

        if (stream_fmt)
            fmt = stream_fmt;
    }

    return fmt;
}

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static void vreport_config_error(const char *filename, int line_num,
                                 int log_level, int *errors, const char *fmt,
                                 va_list vl)
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{
    av_log(NULL, log_level, "%s:%d: ", filename, line_num);
    av_vlog(NULL, log_level, fmt, vl);
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    if (errors)
        (*errors)++;
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}

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static void report_config_error(const char *filename, int line_num,
                                int log_level, int *errors,
                                const char *fmt, ...)
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{
    va_list vl;
    va_start(vl, fmt);
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    vreport_config_error(filename, line_num, log_level, errors, fmt, vl);
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    va_end(vl);
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}
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static int ffserver_set_int_param(int *dest, const char *value, int factor,
                                  int min, int max, FFServerConfig *config,
                                  const char *error_msg, ...)
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{
    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);
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        vreport_config_error(config->filename, config->line_num, AV_LOG_ERROR,
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                &config->errors, error_msg, vl);
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        va_end(vl);
    }
    return AVERROR(EINVAL);
}

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static int ffserver_set_float_param(float *dest, const char *value,
                                    float factor, float min, float max,
                                    FFServerConfig *config,
                                    const char *error_msg, ...)
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{
    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);
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        vreport_config_error(config->filename, config->line_num, AV_LOG_ERROR,
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                &config->errors, error_msg, vl);
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        va_end(vl);
    }
    return AVERROR(EINVAL);
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}

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static int ffserver_save_avoption(const char *opt, const char *arg, int type,
                                  FFServerConfig *config)
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{
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    static int hinted = 0;
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    int ret = 0;
    AVDictionaryEntry *e;
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    const AVOption *o = NULL;
    const char *option = NULL;
    const char *codec_name = NULL;
    char buff[1024];
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    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);
    }
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    if (strchr(opt, ':')) {
        //explicit private option
        snprintf(buff, sizeof(buff), "%s", opt);
        codec_name = buff;
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        if(!(option = strchr(buff, ':'))){
            report_config_error(config->filename, config->line_num,
                                AV_LOG_ERROR, &config->errors,
                                "Syntax error. Unmatched ':'\n");
            return -1;

        }
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        buff[option - buff] = '\0';
        option++;
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        if ((ret = ffserver_set_codec(ctx, codec_name, config)) < 0)
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            return ret;
        if (!ctx->codec || !ctx->priv_data)
            return -1;
    } else {
        option = opt;
    }

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    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")))
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        o = av_opt_find(ctx, option, NULL, 0, 0);
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    if (!o) {
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        report_config_error(config->filename, config->line_num, AV_LOG_ERROR,
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                            &config->errors, "Option not found: '%s'\n", opt);
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        if (!hinted && ctx->codec_id == AV_CODEC_ID_NONE) {
            hinted = 1;
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            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);
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        }
    } else if ((ret = av_opt_set(ctx, option, arg, AV_OPT_SEARCH_CHILDREN)) < 0) {
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        report_config_error(config->filename, config->line_num, AV_LOG_ERROR,
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                &config->errors, "Invalid value for option %s (%s): %s\n", opt,
                arg, av_err2str(ret));
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    } else if ((e = av_dict_get(*dict, option, NULL, 0))) {
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        if ((o->type == AV_OPT_TYPE_FLAGS) && arg &&
            (arg[0] == '+' || arg[0] == '-'))
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            return av_dict_set(dict, option, arg, AV_DICT_APPEND);
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        report_config_error(config->filename, config->line_num, AV_LOG_ERROR,
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                            &config->errors, "Redeclaring value of option '%s'."
                            "Previous value was: '%s'.\n", opt, e->value);
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    } else if (av_dict_set(dict, option, arg, 0) < 0) {
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        return AVERROR(ENOMEM);
    }
    return 0;
}

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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);
}

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static int ffserver_parse_config_global(FFServerConfig *config, const char *cmd,
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                                        const char **p)
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{
    int val;
    char arg[1024];
    if (!av_strcasecmp(cmd, "Port") || !av_strcasecmp(cmd, "HTTPPort")) {
        if (!av_strcasecmp(cmd, "Port"))
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            WARNING("Port option is deprecated. Use HTTPPort instead.\n");
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        ffserver_get_arg(arg, sizeof(arg), p);
616
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
617
                "Invalid port: %s\n", arg);
618
        if (val < 1024)
619
            WARNING("Trying to use IETF assigned system port: '%d'\n", val);
620
        config->http_addr.sin_port = htons(val);
621 622
    } else if (!av_strcasecmp(cmd, "HTTPBindAddress") ||
               !av_strcasecmp(cmd, "BindAddress")) {
623
        if (!av_strcasecmp(cmd, "BindAddress"))
624 625
            WARNING("BindAddress option is deprecated. Use HTTPBindAddress "
                    "instead.\n");
626
        ffserver_get_arg(arg, sizeof(arg), p);
627
        if (resolve_host(&config->http_addr.sin_addr, arg))
628
            ERROR("Invalid host/IP address: '%s'\n", arg);
629
    } else if (!av_strcasecmp(cmd, "NoDaemon")) {
630
        WARNING("NoDaemon option has no effect. You should remove it.\n");
631 632
    } else if (!av_strcasecmp(cmd, "RTSPPort")) {
        ffserver_get_arg(arg, sizeof(arg), p);
633
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
634
                "Invalid port: %s\n", arg);
635
        config->rtsp_addr.sin_port = htons(val);
636 637
    } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
        ffserver_get_arg(arg, sizeof(arg), p);
638
        if (resolve_host(&config->rtsp_addr.sin_addr, arg))
639 640 641
            ERROR("Invalid host/IP address: %s\n", arg);
    } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
        ffserver_get_arg(arg, sizeof(arg), p);
642
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
643
                "Invalid MaxHTTPConnections: %s\n", arg);
644
        config->nb_max_http_connections = val;
645 646 647 648 649
        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);
        }
650 651
    } else if (!av_strcasecmp(cmd, "MaxClients")) {
        ffserver_get_arg(arg, sizeof(arg), p);
652
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
653
                "Invalid MaxClients: '%s'\n", arg);
654
        config->nb_max_connections = val;
655 656 657 658 659
        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);
        }
660 661
    } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
        int64_t llval;
662
        char *tailp;
663
        ffserver_get_arg(arg, sizeof(arg), p);
664 665 666
        errno = 0;
        llval = strtoll(arg, &tailp, 10);
        if (llval < 10 || llval > 10000000 || tailp[0] || errno)
667
            ERROR("Invalid MaxBandwidth: '%s'\n", arg);
668 669 670
        else
            config->max_bandwidth = llval;
    } else if (!av_strcasecmp(cmd, "CustomLog")) {
671 672 673 674
        if (!config->debug) {
            ffserver_get_arg(config->logfilename, sizeof(config->logfilename),
                             p);
        }
675
    } else if (!av_strcasecmp(cmd, "LoadModule")) {
676
        ERROR("Loadable modules are no longer supported\n");
677 678 679 680
    } else if (!av_strcasecmp(cmd, "NoDefaults")) {
        config->use_defaults = 0;
    } else if (!av_strcasecmp(cmd, "UseDefaults")) {
        config->use_defaults = 1;
681 682 683 684 685 686
    } else
        ERROR("Incorrect keyword: '%s'\n", cmd);
    return 0;
}

static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd, const char **p,
687
                                      FFServerStream **pfeed)
688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722
{
    FFServerStream *feed;
    char arg[1024];
    av_assert0(pfeed);
    feed = *pfeed;
    if (!av_strcasecmp(cmd, "<Feed")) {
        char *q;
        FFServerStream *s;
        feed = av_mallocz(sizeof(FFServerStream));
        if (!feed)
            return AVERROR(ENOMEM);
        ffserver_get_arg(feed->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;

723
        feed->child_argv = av_mallocz_array(MAX_CHILD_ARGS, sizeof(char *));
724 725
        if (!feed->child_argv)
            return AVERROR(ENOMEM);
726
        for (i = 0; i < MAX_CHILD_ARGS - 2; i++) {
727 728 729 730 731 732 733 734 735 736 737
            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",
738 739 740
                        (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);
741 742 743
        if (!feed->child_argv[i])
            return AVERROR(ENOMEM);
    } else if (!av_strcasecmp(cmd, "ACL")) {
744
        ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename,
745
                config->line_num);
746 747
    } else if (!av_strcasecmp(cmd, "File") ||
               !av_strcasecmp(cmd, "ReadOnlyFile")) {
748 749 750 751 752 753 754 755
        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 {
756 757
            WARNING("Truncate N syntax in configuration file is deprecated. "
                    "Use Truncate alone with no arguments.\n");
758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776
            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;
777
        default:
778
            ERROR("Invalid file size: '%s'\n", arg);
779
            break;
780 781
        }
        feed->feed_max_size = (int64_t)fsize;
782
        if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
783
            ERROR("Feed max file size is too small. Must be at least %d.\n",
784 785
                  FFM_PACKET_SIZE*4);
        }
786 787 788 789 790 791 792 793 794
    } else if (!av_strcasecmp(cmd, "</Feed>")) {
        *pfeed = NULL;
    } else {
        ERROR("Invalid entry '%s' inside <Feed></Feed>\n", cmd);
    }
    return 0;
}

static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd, const char **p,
795
                                        FFServerStream **pstream)
796 797 798
{
    char arg[1024], arg2[1024];
    FFServerStream *stream;
799
    int val;
800 801 802 803 804 805 806 807 808 809

    av_assert0(pstream);
    stream = *pstream;

    if (!av_strcasecmp(cmd, "<Stream")) {
        char *q;
        FFServerStream *s;
        stream = av_mallocz(sizeof(FFServerStream));
        if (!stream)
            return AVERROR(ENOMEM);
810 811 812
        config->dummy_actx = avcodec_alloc_context3(NULL);
        config->dummy_vctx = avcodec_alloc_context3(NULL);
        if (!config->dummy_vctx || !config->dummy_actx) {
813
            av_free(stream);
814 815
            avcodec_free_context(&config->dummy_vctx);
            avcodec_free_context(&config->dummy_actx);
816 817
            return AVERROR(ENOMEM);
        }
818 819
        config->dummy_actx->codec_type = AVMEDIA_TYPE_AUDIO;
        config->dummy_vctx->codec_type = AVMEDIA_TYPE_VIDEO;
820 821 822 823 824 825 826 827 828 829 830 831
        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) {
832 833
            config->guessed_audio_codec_id = stream->fmt->audio_codec;
            config->guessed_video_codec_id = stream->fmt->video_codec;
834
        } else {
835 836
            config->guessed_audio_codec_id = AV_CODEC_ID_NONE;
            config->guessed_video_codec_id = AV_CODEC_ID_NONE;
837
        }
838
        config->stream_use_defaults = config->use_defaults;
839 840 841 842 843 844 845 846 847 848 849 850 851 852
        *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)
853 854
            ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg,
                    stream->filename);
855 856 857 858 859 860 861 862 863 864 865 866 867 868
        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)
869
                ERROR("Unknown Format: '%s'\n", arg);
870 871
        }
        if (stream->fmt) {
872 873
            config->guessed_audio_codec_id = stream->fmt->audio_codec;
            config->guessed_video_codec_id = stream->fmt->video_codec;
874 875 876 877 878
        }
    } else if (!av_strcasecmp(cmd, "InputFormat")) {
        ffserver_get_arg(arg, sizeof(arg), p);
        stream->ifmt = av_find_input_format(arg);
        if (!stream->ifmt)
879
            ERROR("Unknown input format: '%s'\n", arg);
880 881
    } else if (!av_strcasecmp(cmd, "FaviconURL")) {
        if (stream->stream_type == STREAM_TYPE_STATUS)
882 883
            ffserver_get_arg(stream->feed_filename,
                    sizeof(stream->feed_filename), p);
884 885 886 887 888 889 890
        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];
891
        int i;
892 893 894 895
        ffserver_get_arg(arg, sizeof(arg), p);
        for (i = 0; i < strlen(cmd); i++)
            key[i] = av_tolower(cmd[i]);
        key[i] = 0;
896 897
        WARNING("Deprecated '%s' option in configuration file. Use "
                "'Metadata %s VALUE' instead.\n", cmd, key);
898 899
        if (av_dict_set(&stream->metadata, key, arg, 0) < 0)
            goto nomem;
900 901 902
    } else if (!av_strcasecmp(cmd, "Metadata")) {
        ffserver_get_arg(arg, sizeof(arg), p);
        ffserver_get_arg(arg2, sizeof(arg2), p);
903 904
        if (av_dict_set(&stream->metadata, arg, arg2, 0) < 0)
            goto nomem;
905 906 907 908 909 910 911
    } 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);
912
        ffserver_set_codec(config->dummy_actx, arg, config);
913 914
    } else if (!av_strcasecmp(cmd, "VideoCodec")) {
        ffserver_get_arg(arg, sizeof(arg), p);
915
        ffserver_set_codec(config->dummy_vctx, arg, config);
916 917 918 919
    } 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")) {
920
        float f;
921
        ffserver_get_arg(arg, sizeof(arg), p);
922
        ffserver_set_float_param(&f, arg, 1000, -FLT_MAX, FLT_MAX, config,
923
                "Invalid %s: '%s'\n", cmd, arg);
924 925
        if (ffserver_save_avoption_int("ab", (int64_t)lrintf(f),
                                       AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
926
            goto nomem;
927 928
    } else if (!av_strcasecmp(cmd, "AudioChannels")) {
        ffserver_get_arg(arg, sizeof(arg), p);
929
        if (ffserver_save_avoption("ac", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
930
            goto nomem;
931 932
    } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
        ffserver_get_arg(arg, sizeof(arg), p);
933
        if (ffserver_save_avoption("ar", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
934
            goto nomem;
935 936
    } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
        int minrate, maxrate;
937
        char *dash;
938
        ffserver_get_arg(arg, sizeof(arg), p);
939 940 941 942
        dash = strchr(arg, '-');
        if (dash) {
            *dash = '\0';
            dash++;
943 944
            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) {
945 946
                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)
947
                goto nomem;
948
            }
949
        } else
950
            ERROR("Incorrect format for VideoBitRateRange. It should be "
951
                  "<min>-<max>: '%s'.\n", arg);
952 953
    } else if (!av_strcasecmp(cmd, "Debug")) {
        ffserver_get_arg(arg, sizeof(arg), p);
954 955
        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)
956
            goto nomem;
957 958
    } else if (!av_strcasecmp(cmd, "Strict")) {
        ffserver_get_arg(arg, sizeof(arg), p);
959 960
        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)
961
            goto nomem;
962 963
    } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
        ffserver_get_arg(arg, sizeof(arg), p);
964
        ffserver_set_int_param(&val, arg, 8*1024, 0, INT_MAX, config,
965
                "Invalid %s: '%s'", cmd, arg);
966
        if (ffserver_save_avoption_int("bufsize", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
967
            goto nomem;
968 969
    } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
        ffserver_get_arg(arg, sizeof(arg), p);
970
        ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
971
                               "Invalid %s: '%s'", cmd, arg);
972
        if (ffserver_save_avoption_int("bt", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
973
            goto nomem;
974 975
    } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
        ffserver_get_arg(arg, sizeof(arg), p);
976
        ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
977
                               "Invalid %s: '%s'", cmd, arg);
978
        if (ffserver_save_avoption_int("b", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
979
           goto nomem;
980
    } else if (!av_strcasecmp(cmd, "VideoSize")) {
981
        int ret, w, h;
982
        ffserver_get_arg(arg, sizeof(arg), p);
983
        ret = av_parse_video_size(&w, &h, arg);
984 985
        if (ret < 0)
            ERROR("Invalid video size '%s'\n", arg);
986 987 988 989
        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)
990
                goto nomem;
991
        }
992 993 994 995 996
    } 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;
997
    } else if (!av_strcasecmp(cmd, "PixelFormat")) {
998
        enum AVPixelFormat pix_fmt;
999
        ffserver_get_arg(arg, sizeof(arg), p);
1000 1001
        pix_fmt = av_get_pix_fmt(arg);
        if (pix_fmt == AV_PIX_FMT_NONE)
1002
            ERROR("Unknown pixel format: '%s'\n", arg);
1003
        else if (ffserver_save_avoption("pixel_format", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1004
            goto nomem;
1005 1006
    } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1007
        if (ffserver_save_avoption("g", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1008
            goto nomem;
1009
    } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
1010
        if (ffserver_save_avoption("g", "1", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1011
            goto nomem;
1012
    } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
1013
        if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1014
            goto nomem;
1015
    } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
1016 1017
        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)
1018
            goto nomem;
1019 1020
    } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
               !av_strcasecmp(cmd, "AVOptionAudio")) {
1021
        int ret;
1022 1023
        ffserver_get_arg(arg, sizeof(arg), p);
        ffserver_get_arg(arg2, sizeof(arg2), p);
1024
        if (!av_strcasecmp(cmd, "AVOptionVideo"))
1025 1026
            ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_VIDEO_PARAM,
                                         config);
1027
        else
1028 1029
            ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_AUDIO_PARAM,
                                         config);
1030
        if (ret < 0)
1031
            goto nomem;
1032 1033 1034
    } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
               !av_strcasecmp(cmd, "AVPresetAudio")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1035
        if (!av_strcasecmp(cmd, "AVPresetVideo"))
1036
            ffserver_opt_preset(arg, AV_OPT_FLAG_VIDEO_PARAM, config);
1037
        else
1038
            ffserver_opt_preset(arg, AV_OPT_FLAG_AUDIO_PARAM, config);
1039 1040
    } else if (!av_strcasecmp(cmd, "VideoTag")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1041
        if (strlen(arg) == 4 &&
1042 1043
            ffserver_save_avoption_int("codec_tag",
                                       MKTAG(arg[0], arg[1], arg[2], arg[3]),
1044 1045
                                       AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
            goto nomem;
1046
    } else if (!av_strcasecmp(cmd, "BitExact")) {
1047
        if (ffserver_save_avoption("flags", "+bitexact", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1048
            goto nomem;
1049
    } else if (!av_strcasecmp(cmd, "DctFastint")) {
1050
        if (ffserver_save_avoption("dct", "fastint", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1051
            goto nomem;
1052
    } else if (!av_strcasecmp(cmd, "IdctSimple")) {
1053
        if (ffserver_save_avoption("idct", "simple", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1054
            goto nomem;
1055 1056
    } else if (!av_strcasecmp(cmd, "Qscale")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1057
        ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1058
                               "Invalid Qscale: '%s'\n", arg);
1059 1060 1061
        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)
1062
            goto nomem;
1063 1064
    } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1065
        if (ffserver_save_avoption("qdiff", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1066
            goto nomem;
1067 1068
    } else if (!av_strcasecmp(cmd, "VideoQMax")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1069
        if (ffserver_save_avoption("qmax", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1070
            goto nomem;
1071 1072
    } else if (!av_strcasecmp(cmd, "VideoQMin")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1073
        if (ffserver_save_avoption("qmin", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1074
            goto nomem;
1075 1076
    } else if (!av_strcasecmp(cmd, "LumiMask")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1077
        if (ffserver_save_avoption("lumi_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1078
            goto nomem;
1079 1080
    } else if (!av_strcasecmp(cmd, "DarkMask")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1081
        if (ffserver_save_avoption("dark_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1082
            goto nomem;
1083
    } else if (!av_strcasecmp(cmd, "NoVideo")) {
1084
        config->no_video = 1;
1085
    } else if (!av_strcasecmp(cmd, "NoAudio")) {
1086
        config->no_audio = 1;
1087
    } else if (!av_strcasecmp(cmd, "ACL")) {
1088
        ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename,
1089
                config->line_num);
1090 1091 1092 1093 1094 1095 1096 1097
    } 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);
1098
        if (resolve_host(&stream->multicast_ip, arg))
1099
            ERROR("Invalid host/IP address: '%s'\n", arg);
1100 1101 1102 1103
        stream->is_multicast = 1;
        stream->loop = 1; /* default is looping */
    } else if (!av_strcasecmp(cmd, "MulticastPort")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1104
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
1105
                "Invalid MulticastPort: '%s'\n", arg);
1106
        stream->multicast_port = val;
1107 1108
    } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1109
        ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1110
                "Invalid MulticastTTL: '%s'\n", arg);
1111
        stream->multicast_ttl = val;
1112 1113 1114
    } else if (!av_strcasecmp(cmd, "NoLoop")) {
        stream->loop = 0;
    } else if (!av_strcasecmp(cmd, "</Stream>")) {
1115
        config->stream_use_defaults &= 1;
1116
        if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm")) {
1117 1118
            if (config->dummy_actx->codec_id == AV_CODEC_ID_NONE)
                config->dummy_actx->codec_id = config->guessed_audio_codec_id;
1119 1120
            if (!config->no_audio &&
                config->dummy_actx->codec_id != AV_CODEC_ID_NONE) {
1121
                AVCodecContext *audio_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_actx->codec_id));
1122
                add_codec(stream, audio_enc, config);
1123
            }
1124 1125
            if (config->dummy_vctx->codec_id == AV_CODEC_ID_NONE)
                config->dummy_vctx->codec_id = config->guessed_video_codec_id;
1126 1127
            if (!config->no_video &&
                config->dummy_vctx->codec_id != AV_CODEC_ID_NONE) {
1128
                AVCodecContext *video_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_vctx->codec_id));
1129
                add_codec(stream, video_enc, config);
1130 1131
            }
        }
1132 1133
        av_dict_free(&config->video_opts);
        av_dict_free(&config->audio_opts);
1134 1135
        avcodec_free_context(&config->dummy_vctx);
        avcodec_free_context(&config->dummy_actx);
1136
        *pstream = NULL;
1137 1138
    } else if (!av_strcasecmp(cmd, "File") ||
               !av_strcasecmp(cmd, "ReadOnlyFile")) {
1139 1140
        ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename),
                p);
1141 1142 1143 1144 1145 1146 1147 1148
    } 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;
1149 1150 1151 1152
    } else {
        ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);
    }
    return 0;
1153 1154 1155 1156
  nomem:
    av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");
    av_dict_free(&config->video_opts);
    av_dict_free(&config->audio_opts);
1157 1158
    avcodec_free_context(&config->dummy_vctx);
    avcodec_free_context(&config->dummy_actx);
1159
    return AVERROR(ENOMEM);
1160 1161
}

1162 1163
static int ffserver_parse_config_redirect(FFServerConfig *config,
                                          const char *cmd, const char **p,
1164
                                          FFServerStream **predirect)
1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185
{
    FFServerStream *redirect;
    av_assert0(predirect);
    redirect = *predirect;

    if (!av_strcasecmp(cmd, "<Redirect")) {
        char *q;
        redirect = av_mallocz(sizeof(FFServerStream));
        if (!redirect)
            return AVERROR(ENOMEM);

        ffserver_get_arg(redirect->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")) {
1186 1187
        ffserver_get_arg(redirect->feed_filename,
                sizeof(redirect->feed_filename), p);
1188 1189 1190 1191 1192 1193 1194 1195 1196 1197
    } else if (!av_strcasecmp(cmd, "</Redirect>")) {
        if (!redirect->feed_filename[0])
            ERROR("No URL found for <Redirect>\n");
        *predirect = NULL;
    } else {
        ERROR("Invalid entry '%s' inside <Redirect></Redirect>\n", cmd);
    }
    return 0;
}

1198 1199 1200 1201 1202 1203
int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)
{
    FILE *f;
    char line[1024];
    char cmd[64];
    const char *p;
1204 1205
    FFServerStream **last_stream, *stream = NULL, *redirect = NULL;
    FFServerStream **last_feed, *feed = NULL;
1206 1207 1208 1209 1210 1211 1212
    int ret = 0;

    av_assert0(config);

    f = fopen(filename, "r");
    if (!f) {
        ret = AVERROR(errno);
1213 1214
        av_log(NULL, AV_LOG_ERROR,
                "Could not open the configuration file '%s'\n", filename);
1215 1216 1217 1218 1219
        return ret;
    }

    config->first_stream = NULL;
    config->first_feed = NULL;
1220
    config->errors = config->warnings = 0;
1221

1222 1223 1224 1225 1226
    last_stream = &config->first_stream;
    last_feed = &config->first_feed;

    config->line_num = 0;
    while (fgets(line, sizeof(line), f) != NULL) {
1227
        config->line_num++;
1228 1229 1230 1231 1232 1233 1234 1235
        p = line;
        while (av_isspace(*p))
            p++;
        if (*p == '\0' || *p == '#')
            continue;

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

1236 1237 1238
        if (feed || !av_strcasecmp(cmd, "<Feed")) {
            int opening = !av_strcasecmp(cmd, "<Feed");
            if (opening && (stream || feed || redirect)) {
1239 1240
                ERROR("Already in a tag\n");
            } else {
1241 1242
                ret = ffserver_parse_config_feed(config, cmd, &p, &feed);
                if (ret < 0)
1243
                    break;
1244
                if (opening) {
1245
                    /* add in stream & feed list */
1246 1247
                    *last_stream = feed;
                    *last_feed = feed;
1248
                    last_stream = &feed->next;
1249
                    last_feed = &feed->next_feed;
1250 1251
                }
            }
1252 1253 1254
        } else if (stream || !av_strcasecmp(cmd, "<Stream")) {
            int opening = !av_strcasecmp(cmd, "<Stream");
            if (opening && (stream || feed || redirect)) {
1255 1256
                ERROR("Already in a tag\n");
            } else {
1257 1258
                ret = ffserver_parse_config_stream(config, cmd, &p, &stream);
                if (ret < 0)
1259 1260 1261 1262 1263
                    break;
                if (opening) {
                    /* add in stream list */
                    *last_stream = stream;
                    last_stream = &stream->next;
1264 1265
                }
            }
1266 1267 1268
        } else if (redirect || !av_strcasecmp(cmd, "<Redirect")) {
            int opening = !av_strcasecmp(cmd, "<Redirect");
            if (opening && (stream || feed || redirect))
1269
                ERROR("Already in a tag\n");
1270
            else {
1271 1272 1273
                ret = ffserver_parse_config_redirect(config, cmd, &p,
                                                     &redirect);
                if (ret < 0)
1274 1275 1276 1277 1278
                    break;
                if (opening) {
                    /* add in stream list */
                    *last_stream = redirect;
                    last_stream = &redirect->next;
1279 1280 1281
                }
            }
        } else {
1282
            ffserver_parse_config_global(config, cmd, &p);
1283 1284
        }
    }
1285
    if (stream || feed || redirect)
1286 1287
        ERROR("Missing closing </%s> tag\n",
              stream ? "Stream" : (feed ? "Feed" : "Redirect"));
1288 1289 1290 1291

    fclose(f);
    if (ret < 0)
        return ret;
1292
    if (config->errors)
1293 1294 1295 1296
        return AVERROR(EINVAL);
    else
        return 0;
}
1297 1298 1299

#undef ERROR
#undef WARNING
1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313

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);
}