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__)
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#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;
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    FFServerIPAddressACL *nacl;
    FFServerIPAddressACL **naclp;
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    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);
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        goto bail;
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    }

    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);
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        goto bail;
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    }

    acl.last = acl.first;
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    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);
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            goto bail;
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        }
    }

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    nacl = av_mallocz(sizeof(*nacl));
    naclp = 0;
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    acl.next = 0;
    *nacl = acl;

    if (stream)
        naclp = &stream->acl;
    else if (feed)
        naclp = &feed->acl;
    else if (ext_acl)
        naclp = &ext_acl;
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    else
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        fprintf(stderr, "%s:%d: ACL found not in <Stream> or <Feed>\n",
                filename, line_num);

    if (naclp) {
        while (*naclp)
            naclp = &(*naclp)->next;

        *naclp = nacl;
    } else
        av_free(nacl);

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bail:
  return;

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}

/* 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, "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 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) {
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        if (tmp == INT_MIN || FFABS(tmp) > INT_MAX / FFABS(factor))
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            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,
610
                                        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"))
616
            WARNING("Port option is deprecated. Use HTTPPort instead.\n");
617
        ffserver_get_arg(arg, sizeof(arg), p);
618
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
619
                "Invalid port: %s\n", arg);
620
        if (val < 1024)
621
            WARNING("Trying to use IETF assigned system port: '%d'\n", val);
622
        config->http_addr.sin_port = htons(val);
623 624
    } else if (!av_strcasecmp(cmd, "HTTPBindAddress") ||
               !av_strcasecmp(cmd, "BindAddress")) {
625
        if (!av_strcasecmp(cmd, "BindAddress"))
626 627
            WARNING("BindAddress option is deprecated. Use HTTPBindAddress "
                    "instead.\n");
628
        ffserver_get_arg(arg, sizeof(arg), p);
629
        if (resolve_host(&config->http_addr.sin_addr, arg))
630
            ERROR("Invalid host/IP address: '%s'\n", arg);
631
    } else if (!av_strcasecmp(cmd, "NoDaemon")) {
632
        WARNING("NoDaemon option has no effect. You should remove it.\n");
633 634
    } else if (!av_strcasecmp(cmd, "RTSPPort")) {
        ffserver_get_arg(arg, sizeof(arg), p);
635
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
636
                "Invalid port: %s\n", arg);
637
        config->rtsp_addr.sin_port = htons(val);
638 639
    } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
        ffserver_get_arg(arg, sizeof(arg), p);
640
        if (resolve_host(&config->rtsp_addr.sin_addr, arg))
641 642 643
            ERROR("Invalid host/IP address: %s\n", arg);
    } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
        ffserver_get_arg(arg, sizeof(arg), p);
644
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
645
                "Invalid MaxHTTPConnections: %s\n", arg);
646
        config->nb_max_http_connections = val;
647 648 649 650 651
        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);
        }
652 653
    } else if (!av_strcasecmp(cmd, "MaxClients")) {
        ffserver_get_arg(arg, sizeof(arg), p);
654
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
655
                "Invalid MaxClients: '%s'\n", arg);
656
        config->nb_max_connections = val;
657 658 659 660 661
        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);
        }
662 663
    } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
        int64_t llval;
664
        char *tailp;
665
        ffserver_get_arg(arg, sizeof(arg), p);
666 667 668
        errno = 0;
        llval = strtoll(arg, &tailp, 10);
        if (llval < 10 || llval > 10000000 || tailp[0] || errno)
669
            ERROR("Invalid MaxBandwidth: '%s'\n", arg);
670 671 672
        else
            config->max_bandwidth = llval;
    } else if (!av_strcasecmp(cmd, "CustomLog")) {
673 674 675 676
        if (!config->debug) {
            ffserver_get_arg(config->logfilename, sizeof(config->logfilename),
                             p);
        }
677
    } else if (!av_strcasecmp(cmd, "LoadModule")) {
678
        ERROR("Loadable modules are no longer supported\n");
679 680 681 682
    } else if (!av_strcasecmp(cmd, "NoDefaults")) {
        config->use_defaults = 0;
    } else if (!av_strcasecmp(cmd, "UseDefaults")) {
        config->use_defaults = 1;
683 684 685 686 687
    } else
        ERROR("Incorrect keyword: '%s'\n", cmd);
    return 0;
}

688 689
static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd,
                                      const char **p, FFServerStream **pfeed)
690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724
{
    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;

725
        feed->child_argv = av_mallocz_array(MAX_CHILD_ARGS, sizeof(char *));
726 727
        if (!feed->child_argv)
            return AVERROR(ENOMEM);
728
        for (i = 0; i < MAX_CHILD_ARGS - 2; i++) {
729 730 731 732 733 734 735 736 737 738 739
            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",
740 741 742
                        (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);
743 744 745
        if (!feed->child_argv[i])
            return AVERROR(ENOMEM);
    } else if (!av_strcasecmp(cmd, "ACL")) {
746
        ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename,
747
                config->line_num);
748 749
    } else if (!av_strcasecmp(cmd, "File") ||
               !av_strcasecmp(cmd, "ReadOnlyFile")) {
750 751 752 753 754 755 756 757
        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 {
758 759
            WARNING("Truncate N syntax in configuration file is deprecated. "
                    "Use Truncate alone with no arguments.\n");
760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778
            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;
779
        default:
780
            ERROR("Invalid file size: '%s'\n", arg);
781
            break;
782 783
        }
        feed->feed_max_size = (int64_t)fsize;
784
        if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
785
            ERROR("Feed max file size is too small. Must be at least %d.\n",
786 787
                  FFM_PACKET_SIZE*4);
        }
788 789 790 791 792 793 794 795
    } else if (!av_strcasecmp(cmd, "</Feed>")) {
        *pfeed = NULL;
    } else {
        ERROR("Invalid entry '%s' inside <Feed></Feed>\n", cmd);
    }
    return 0;
}

796 797
static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd,
                                        const char **p,
798
                                        FFServerStream **pstream)
799 800 801
{
    char arg[1024], arg2[1024];
    FFServerStream *stream;
802
    int val;
803 804 805 806 807 808 809 810 811 812

    av_assert0(pstream);
    stream = *pstream;

    if (!av_strcasecmp(cmd, "<Stream")) {
        char *q;
        FFServerStream *s;
        stream = av_mallocz(sizeof(FFServerStream));
        if (!stream)
            return AVERROR(ENOMEM);
813 814 815
        config->dummy_actx = avcodec_alloc_context3(NULL);
        config->dummy_vctx = avcodec_alloc_context3(NULL);
        if (!config->dummy_vctx || !config->dummy_actx) {
816
            av_free(stream);
817 818
            avcodec_free_context(&config->dummy_vctx);
            avcodec_free_context(&config->dummy_actx);
819 820
            return AVERROR(ENOMEM);
        }
821 822
        config->dummy_actx->codec_type = AVMEDIA_TYPE_AUDIO;
        config->dummy_vctx->codec_type = AVMEDIA_TYPE_VIDEO;
823 824 825 826 827 828 829 830 831 832 833 834
        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) {
835 836
            config->guessed_audio_codec_id = stream->fmt->audio_codec;
            config->guessed_video_codec_id = stream->fmt->video_codec;
837
        } else {
838 839
            config->guessed_audio_codec_id = AV_CODEC_ID_NONE;
            config->guessed_video_codec_id = AV_CODEC_ID_NONE;
840
        }
841
        config->stream_use_defaults = config->use_defaults;
842 843 844 845 846 847 848 849 850 851 852 853 854 855
        *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)
856 857
            ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg,
                    stream->filename);
858 859 860 861 862 863 864 865 866 867
        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 */
868 869 870 871
            if (!strcmp(arg, "jpeg")) {
                strcpy(arg, "singlejpeg");
                stream->single_frame=1;
            }
872 873
            stream->fmt = ffserver_guess_format(arg, NULL, NULL);
            if (!stream->fmt)
874
                ERROR("Unknown Format: '%s'\n", arg);
875 876
        }
        if (stream->fmt) {
877 878
            config->guessed_audio_codec_id = stream->fmt->audio_codec;
            config->guessed_video_codec_id = stream->fmt->video_codec;
879 880 881 882 883
        }
    } else if (!av_strcasecmp(cmd, "InputFormat")) {
        ffserver_get_arg(arg, sizeof(arg), p);
        stream->ifmt = av_find_input_format(arg);
        if (!stream->ifmt)
884
            ERROR("Unknown input format: '%s'\n", arg);
885 886
    } else if (!av_strcasecmp(cmd, "FaviconURL")) {
        if (stream->stream_type == STREAM_TYPE_STATUS)
887 888
            ffserver_get_arg(stream->feed_filename,
                    sizeof(stream->feed_filename), p);
889 890 891 892 893 894 895
        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];
896
        int i;
897 898 899 900
        ffserver_get_arg(arg, sizeof(arg), p);
        for (i = 0; i < strlen(cmd); i++)
            key[i] = av_tolower(cmd[i]);
        key[i] = 0;
901 902
        WARNING("Deprecated '%s' option in configuration file. Use "
                "'Metadata %s VALUE' instead.\n", cmd, key);
903 904
        if (av_dict_set(&stream->metadata, key, arg, 0) < 0)
            goto nomem;
905 906 907
    } else if (!av_strcasecmp(cmd, "Metadata")) {
        ffserver_get_arg(arg, sizeof(arg), p);
        ffserver_get_arg(arg2, sizeof(arg2), p);
908 909
        if (av_dict_set(&stream->metadata, arg, arg2, 0) < 0)
            goto nomem;
910 911 912 913 914 915 916
    } 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);
917
        ffserver_set_codec(config->dummy_actx, arg, config);
918 919
    } else if (!av_strcasecmp(cmd, "VideoCodec")) {
        ffserver_get_arg(arg, sizeof(arg), p);
920
        ffserver_set_codec(config->dummy_vctx, arg, config);
921 922 923 924
    } 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")) {
925
        float f;
926
        ffserver_get_arg(arg, sizeof(arg), p);
927
        ffserver_set_float_param(&f, arg, 1000, -FLT_MAX, FLT_MAX, config,
928
                "Invalid %s: '%s'\n", cmd, arg);
929
        if (ffserver_save_avoption_int("b", (int64_t)lrintf(f),
930
                                       AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
931
            goto nomem;
932 933
    } else if (!av_strcasecmp(cmd, "AudioChannels")) {
        ffserver_get_arg(arg, sizeof(arg), p);
934
        if (ffserver_save_avoption("ac", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
935
            goto nomem;
936 937
    } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
        ffserver_get_arg(arg, sizeof(arg), p);
938
        if (ffserver_save_avoption("ar", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
939
            goto nomem;
940 941
    } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
        int minrate, maxrate;
942
        char *dash;
943
        ffserver_get_arg(arg, sizeof(arg), p);
944 945 946 947
        dash = strchr(arg, '-');
        if (dash) {
            *dash = '\0';
            dash++;
948 949
            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) {
950 951
                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)
952
                goto nomem;
953
            }
954
        } else
955
            ERROR("Incorrect format for VideoBitRateRange. It should be "
956
                  "<min>-<max>: '%s'.\n", arg);
957 958
    } else if (!av_strcasecmp(cmd, "Debug")) {
        ffserver_get_arg(arg, sizeof(arg), p);
959 960
        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)
961
            goto nomem;
962 963
    } else if (!av_strcasecmp(cmd, "Strict")) {
        ffserver_get_arg(arg, sizeof(arg), p);
964 965
        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)
966
            goto nomem;
967 968
    } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
        ffserver_get_arg(arg, sizeof(arg), p);
969
        ffserver_set_int_param(&val, arg, 8*1024, 0, INT_MAX, config,
970
                "Invalid %s: '%s'", cmd, arg);
971
        if (ffserver_save_avoption_int("bufsize", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
972
            goto nomem;
973 974
    } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
        ffserver_get_arg(arg, sizeof(arg), p);
975
        ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
976
                               "Invalid %s: '%s'", cmd, arg);
977
        if (ffserver_save_avoption_int("bt", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
978
            goto nomem;
979 980
    } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
        ffserver_get_arg(arg, sizeof(arg), p);
981
        ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
982
                               "Invalid %s: '%s'", cmd, arg);
983
        if (ffserver_save_avoption_int("b", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
984
           goto nomem;
985
    } else if (!av_strcasecmp(cmd, "VideoSize")) {
986
        int ret, w, h;
987
        ffserver_get_arg(arg, sizeof(arg), p);
988
        ret = av_parse_video_size(&w, &h, arg);
989 990
        if (ret < 0)
            ERROR("Invalid video size '%s'\n", arg);
991 992 993 994
        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)
995
                goto nomem;
996
        }
997 998 999 1000 1001
    } 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;
1002
    } else if (!av_strcasecmp(cmd, "PixelFormat")) {
1003
        enum AVPixelFormat pix_fmt;
1004
        ffserver_get_arg(arg, sizeof(arg), p);
1005 1006
        pix_fmt = av_get_pix_fmt(arg);
        if (pix_fmt == AV_PIX_FMT_NONE)
1007
            ERROR("Unknown pixel format: '%s'\n", arg);
1008
        else if (ffserver_save_avoption("pixel_format", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1009
            goto nomem;
1010 1011
    } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1012
        if (ffserver_save_avoption("g", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1013
            goto nomem;
1014
    } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
1015
        if (ffserver_save_avoption("g", "1", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1016
            goto nomem;
1017
    } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
1018
        if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1019
            goto nomem;
1020
    } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
1021 1022
        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)
1023
            goto nomem;
1024 1025
    } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
               !av_strcasecmp(cmd, "AVOptionAudio")) {
1026
        int ret;
1027 1028
        ffserver_get_arg(arg, sizeof(arg), p);
        ffserver_get_arg(arg2, sizeof(arg2), p);
1029
        if (!av_strcasecmp(cmd, "AVOptionVideo"))
1030 1031
            ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_VIDEO_PARAM,
                                         config);
1032
        else
1033 1034
            ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_AUDIO_PARAM,
                                         config);
1035
        if (ret < 0)
1036
            goto nomem;
1037 1038 1039
    } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
               !av_strcasecmp(cmd, "AVPresetAudio")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1040
        if (!av_strcasecmp(cmd, "AVPresetVideo"))
1041
            ffserver_opt_preset(arg, AV_OPT_FLAG_VIDEO_PARAM, config);
1042
        else
1043
            ffserver_opt_preset(arg, AV_OPT_FLAG_AUDIO_PARAM, config);
1044 1045
    } else if (!av_strcasecmp(cmd, "VideoTag")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1046
        if (strlen(arg) == 4 &&
1047 1048
            ffserver_save_avoption_int("codec_tag",
                                       MKTAG(arg[0], arg[1], arg[2], arg[3]),
1049 1050
                                       AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
            goto nomem;
1051
    } else if (!av_strcasecmp(cmd, "BitExact")) {
1052
        if (ffserver_save_avoption("flags", "+bitexact", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1053
            goto nomem;
1054
    } else if (!av_strcasecmp(cmd, "DctFastint")) {
1055
        if (ffserver_save_avoption("dct", "fastint", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1056
            goto nomem;
1057
    } else if (!av_strcasecmp(cmd, "IdctSimple")) {
1058
        if (ffserver_save_avoption("idct", "simple", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1059
            goto nomem;
1060 1061
    } else if (!av_strcasecmp(cmd, "Qscale")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1062
        ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1063
                               "Invalid Qscale: '%s'\n", arg);
1064 1065 1066
        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)
1067
            goto nomem;
1068 1069
    } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1070
        if (ffserver_save_avoption("qdiff", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1071
            goto nomem;
1072 1073
    } else if (!av_strcasecmp(cmd, "VideoQMax")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1074
        if (ffserver_save_avoption("qmax", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1075
            goto nomem;
1076 1077
    } else if (!av_strcasecmp(cmd, "VideoQMin")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1078
        if (ffserver_save_avoption("qmin", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1079
            goto nomem;
1080 1081
    } else if (!av_strcasecmp(cmd, "LumiMask")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1082
        if (ffserver_save_avoption("lumi_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1083
            goto nomem;
1084 1085
    } else if (!av_strcasecmp(cmd, "DarkMask")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1086
        if (ffserver_save_avoption("dark_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1087
            goto nomem;
1088
    } else if (!av_strcasecmp(cmd, "NoVideo")) {
1089
        config->no_video = 1;
1090
    } else if (!av_strcasecmp(cmd, "NoAudio")) {
1091
        config->no_audio = 1;
1092
    } else if (!av_strcasecmp(cmd, "ACL")) {
1093
        ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename,
1094
                config->line_num);
1095 1096 1097 1098 1099 1100 1101 1102
    } 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);
1103
        if (resolve_host(&stream->multicast_ip, arg))
1104
            ERROR("Invalid host/IP address: '%s'\n", arg);
1105 1106 1107 1108
        stream->is_multicast = 1;
        stream->loop = 1; /* default is looping */
    } else if (!av_strcasecmp(cmd, "MulticastPort")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1109
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
1110
                "Invalid MulticastPort: '%s'\n", arg);
1111
        stream->multicast_port = val;
1112 1113
    } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1114
        ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1115
                "Invalid MulticastTTL: '%s'\n", arg);
1116
        stream->multicast_ttl = val;
1117 1118 1119
    } else if (!av_strcasecmp(cmd, "NoLoop")) {
        stream->loop = 0;
    } else if (!av_strcasecmp(cmd, "</Stream>")) {
1120
        config->stream_use_defaults &= 1;
1121
        if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm")) {
1122 1123
            if (config->dummy_actx->codec_id == AV_CODEC_ID_NONE)
                config->dummy_actx->codec_id = config->guessed_audio_codec_id;
1124 1125
            if (!config->no_audio &&
                config->dummy_actx->codec_id != AV_CODEC_ID_NONE) {
1126
                AVCodecContext *audio_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_actx->codec_id));
1127
                add_codec(stream, audio_enc, config);
1128
            }
1129 1130
            if (config->dummy_vctx->codec_id == AV_CODEC_ID_NONE)
                config->dummy_vctx->codec_id = config->guessed_video_codec_id;
1131 1132
            if (!config->no_video &&
                config->dummy_vctx->codec_id != AV_CODEC_ID_NONE) {
1133
                AVCodecContext *video_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_vctx->codec_id));
1134
                add_codec(stream, video_enc, config);
1135 1136
            }
        }
1137 1138
        av_dict_free(&config->video_opts);
        av_dict_free(&config->audio_opts);
1139 1140
        avcodec_free_context(&config->dummy_vctx);
        avcodec_free_context(&config->dummy_actx);
1141 1142
        config->no_video = 0;
        config->no_audio = 0;
1143
        *pstream = NULL;
1144 1145
    } else if (!av_strcasecmp(cmd, "File") ||
               !av_strcasecmp(cmd, "ReadOnlyFile")) {
1146 1147
        ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename),
                p);
1148 1149 1150 1151 1152 1153 1154 1155
    } 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;
1156 1157 1158 1159
    } else {
        ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);
    }
    return 0;
1160 1161 1162 1163
  nomem:
    av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");
    av_dict_free(&config->video_opts);
    av_dict_free(&config->audio_opts);
1164 1165
    avcodec_free_context(&config->dummy_vctx);
    avcodec_free_context(&config->dummy_actx);
1166
    return AVERROR(ENOMEM);
1167 1168
}

1169 1170
static int ffserver_parse_config_redirect(FFServerConfig *config,
                                          const char *cmd, const char **p,
1171
                                          FFServerStream **predirect)
1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192
{
    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")) {
1193 1194
        ffserver_get_arg(redirect->feed_filename,
                sizeof(redirect->feed_filename), p);
1195 1196 1197 1198 1199 1200 1201 1202 1203 1204
    } 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;
}

1205 1206 1207 1208 1209 1210
int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)
{
    FILE *f;
    char line[1024];
    char cmd[64];
    const char *p;
1211 1212
    FFServerStream **last_stream, *stream = NULL, *redirect = NULL;
    FFServerStream **last_feed, *feed = NULL;
1213 1214 1215 1216 1217 1218 1219
    int ret = 0;

    av_assert0(config);

    f = fopen(filename, "r");
    if (!f) {
        ret = AVERROR(errno);
1220 1221
        av_log(NULL, AV_LOG_ERROR,
                "Could not open the configuration file '%s'\n", filename);
1222 1223 1224 1225 1226
        return ret;
    }

    config->first_stream = NULL;
    config->first_feed = NULL;
1227
    config->errors = config->warnings = 0;
1228

1229 1230 1231 1232 1233
    last_stream = &config->first_stream;
    last_feed = &config->first_feed;

    config->line_num = 0;
    while (fgets(line, sizeof(line), f) != NULL) {
1234
        config->line_num++;
1235 1236 1237 1238 1239 1240 1241 1242
        p = line;
        while (av_isspace(*p))
            p++;
        if (*p == '\0' || *p == '#')
            continue;

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

1243 1244 1245
        if (feed || !av_strcasecmp(cmd, "<Feed")) {
            int opening = !av_strcasecmp(cmd, "<Feed");
            if (opening && (stream || feed || redirect)) {
1246 1247
                ERROR("Already in a tag\n");
            } else {
1248 1249
                ret = ffserver_parse_config_feed(config, cmd, &p, &feed);
                if (ret < 0)
1250
                    break;
1251
                if (opening) {
1252
                    /* add in stream & feed list */
1253 1254
                    *last_stream = feed;
                    *last_feed = feed;
1255
                    last_stream = &feed->next;
1256
                    last_feed = &feed->next_feed;
1257 1258
                }
            }
1259 1260 1261
        } else if (stream || !av_strcasecmp(cmd, "<Stream")) {
            int opening = !av_strcasecmp(cmd, "<Stream");
            if (opening && (stream || feed || redirect)) {
1262 1263
                ERROR("Already in a tag\n");
            } else {
1264 1265
                ret = ffserver_parse_config_stream(config, cmd, &p, &stream);
                if (ret < 0)
1266 1267 1268 1269 1270
                    break;
                if (opening) {
                    /* add in stream list */
                    *last_stream = stream;
                    last_stream = &stream->next;
1271 1272
                }
            }
1273 1274 1275
        } else if (redirect || !av_strcasecmp(cmd, "<Redirect")) {
            int opening = !av_strcasecmp(cmd, "<Redirect");
            if (opening && (stream || feed || redirect))
1276
                ERROR("Already in a tag\n");
1277
            else {
1278 1279 1280
                ret = ffserver_parse_config_redirect(config, cmd, &p,
                                                     &redirect);
                if (ret < 0)
1281 1282 1283 1284 1285
                    break;
                if (opening) {
                    /* add in stream list */
                    *last_stream = redirect;
                    last_stream = &redirect->next;
1286 1287 1288
                }
            }
        } else {
1289
            ffserver_parse_config_global(config, cmd, &p);
1290 1291
        }
    }
1292
    if (stream || feed || redirect)
1293 1294
        ERROR("Missing closing </%s> tag\n",
              stream ? "Stream" : (feed ? "Feed" : "Redirect"));
1295 1296 1297 1298

    fclose(f);
    if (ret < 0)
        return ret;
1299
    if (config->errors)
1300 1301 1302 1303
        return AVERROR(EINVAL);
    else
        return 0;
}
1304 1305 1306

#undef ERROR
#undef WARNING
1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320

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);
}