ffserver_config.c 49.9 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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    st->codecpar = avcodec_parameters_alloc();
    avcodec_parameters_from_context(st->codecpar, 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,
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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"))
618
            WARNING("Port option is deprecated. Use HTTPPort instead.\n");
619
        ffserver_get_arg(arg, sizeof(arg), p);
620
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
621
                "Invalid port: %s\n", arg);
622
        if (val < 1024)
623
            WARNING("Trying to use IETF assigned system port: '%d'\n", val);
624
        config->http_addr.sin_port = htons(val);
625 626
    } else if (!av_strcasecmp(cmd, "HTTPBindAddress") ||
               !av_strcasecmp(cmd, "BindAddress")) {
627
        if (!av_strcasecmp(cmd, "BindAddress"))
628 629
            WARNING("BindAddress option is deprecated. Use HTTPBindAddress "
                    "instead.\n");
630
        ffserver_get_arg(arg, sizeof(arg), p);
631
        if (resolve_host(&config->http_addr.sin_addr, arg))
632
            ERROR("Invalid host/IP address: '%s'\n", arg);
633
    } else if (!av_strcasecmp(cmd, "NoDaemon")) {
634
        WARNING("NoDaemon option has no effect. You should remove it.\n");
635 636
    } else if (!av_strcasecmp(cmd, "RTSPPort")) {
        ffserver_get_arg(arg, sizeof(arg), p);
637
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
638
                "Invalid port: %s\n", arg);
639
        config->rtsp_addr.sin_port = htons(val);
640 641
    } else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
        ffserver_get_arg(arg, sizeof(arg), p);
642
        if (resolve_host(&config->rtsp_addr.sin_addr, arg))
643 644 645
            ERROR("Invalid host/IP address: %s\n", arg);
    } else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
        ffserver_get_arg(arg, sizeof(arg), p);
646
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
647
                "Invalid MaxHTTPConnections: %s\n", arg);
648
        config->nb_max_http_connections = val;
649 650 651 652 653
        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);
        }
654 655
    } else if (!av_strcasecmp(cmd, "MaxClients")) {
        ffserver_get_arg(arg, sizeof(arg), p);
656
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
657
                "Invalid MaxClients: '%s'\n", arg);
658
        config->nb_max_connections = val;
659 660 661 662 663
        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);
        }
664 665
    } else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
        int64_t llval;
666
        char *tailp;
667
        ffserver_get_arg(arg, sizeof(arg), p);
668 669 670
        errno = 0;
        llval = strtoll(arg, &tailp, 10);
        if (llval < 10 || llval > 10000000 || tailp[0] || errno)
671
            ERROR("Invalid MaxBandwidth: '%s'\n", arg);
672 673 674
        else
            config->max_bandwidth = llval;
    } else if (!av_strcasecmp(cmd, "CustomLog")) {
675 676 677 678
        if (!config->debug) {
            ffserver_get_arg(config->logfilename, sizeof(config->logfilename),
                             p);
        }
679
    } else if (!av_strcasecmp(cmd, "LoadModule")) {
680
        ERROR("Loadable modules are no longer supported\n");
681 682 683 684
    } else if (!av_strcasecmp(cmd, "NoDefaults")) {
        config->use_defaults = 0;
    } else if (!av_strcasecmp(cmd, "UseDefaults")) {
        config->use_defaults = 1;
685 686 687 688 689
    } else
        ERROR("Incorrect keyword: '%s'\n", cmd);
    return 0;
}

690 691
static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd,
                                      const char **p, FFServerStream **pfeed)
692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726
{
    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;

727
        feed->child_argv = av_mallocz_array(MAX_CHILD_ARGS, sizeof(char *));
728 729
        if (!feed->child_argv)
            return AVERROR(ENOMEM);
730
        for (i = 0; i < MAX_CHILD_ARGS - 2; i++) {
731 732 733 734 735 736 737 738 739 740 741
            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",
742 743 744
                        (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);
745 746 747
        if (!feed->child_argv[i])
            return AVERROR(ENOMEM);
    } else if (!av_strcasecmp(cmd, "ACL")) {
748
        ffserver_parse_acl_row(NULL, feed, NULL, *p, config->filename,
749
                config->line_num);
750 751
    } else if (!av_strcasecmp(cmd, "File") ||
               !av_strcasecmp(cmd, "ReadOnlyFile")) {
752 753 754 755 756 757 758 759
        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 {
760 761
            WARNING("Truncate N syntax in configuration file is deprecated. "
                    "Use Truncate alone with no arguments.\n");
762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780
            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;
781
        default:
782
            ERROR("Invalid file size: '%s'\n", arg);
783
            break;
784 785
        }
        feed->feed_max_size = (int64_t)fsize;
786
        if (feed->feed_max_size < FFM_PACKET_SIZE*4) {
787
            ERROR("Feed max file size is too small. Must be at least %d.\n",
788 789
                  FFM_PACKET_SIZE*4);
        }
790 791 792 793 794 795 796 797
    } else if (!av_strcasecmp(cmd, "</Feed>")) {
        *pfeed = NULL;
    } else {
        ERROR("Invalid entry '%s' inside <Feed></Feed>\n", cmd);
    }
    return 0;
}

798 799
static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd,
                                        const char **p,
800
                                        FFServerStream **pstream)
801 802 803
{
    char arg[1024], arg2[1024];
    FFServerStream *stream;
804
    int val;
805 806 807 808 809 810 811 812 813 814

    av_assert0(pstream);
    stream = *pstream;

    if (!av_strcasecmp(cmd, "<Stream")) {
        char *q;
        FFServerStream *s;
        stream = av_mallocz(sizeof(FFServerStream));
        if (!stream)
            return AVERROR(ENOMEM);
815 816 817
        config->dummy_actx = avcodec_alloc_context3(NULL);
        config->dummy_vctx = avcodec_alloc_context3(NULL);
        if (!config->dummy_vctx || !config->dummy_actx) {
818
            av_free(stream);
819 820
            avcodec_free_context(&config->dummy_vctx);
            avcodec_free_context(&config->dummy_actx);
821 822
            return AVERROR(ENOMEM);
        }
823 824
        config->dummy_actx->codec_type = AVMEDIA_TYPE_AUDIO;
        config->dummy_vctx->codec_type = AVMEDIA_TYPE_VIDEO;
825 826 827 828 829 830 831 832 833 834 835 836
        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) {
837 838
            config->guessed_audio_codec_id = stream->fmt->audio_codec;
            config->guessed_video_codec_id = stream->fmt->video_codec;
839
        } else {
840 841
            config->guessed_audio_codec_id = AV_CODEC_ID_NONE;
            config->guessed_video_codec_id = AV_CODEC_ID_NONE;
842
        }
843
        config->stream_use_defaults = config->use_defaults;
844 845 846 847 848 849 850 851 852 853 854 855 856 857
        *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)
858 859
            ERROR("Feed with name '%s' for stream '%s' is not defined\n", arg,
                    stream->filename);
860 861 862 863 864 865 866 867 868 869
        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 */
870 871 872 873
            if (!strcmp(arg, "jpeg")) {
                strcpy(arg, "singlejpeg");
                stream->single_frame=1;
            }
874 875
            stream->fmt = ffserver_guess_format(arg, NULL, NULL);
            if (!stream->fmt)
876
                ERROR("Unknown Format: '%s'\n", arg);
877 878
        }
        if (stream->fmt) {
879 880
            config->guessed_audio_codec_id = stream->fmt->audio_codec;
            config->guessed_video_codec_id = stream->fmt->video_codec;
881 882 883 884 885
        }
    } else if (!av_strcasecmp(cmd, "InputFormat")) {
        ffserver_get_arg(arg, sizeof(arg), p);
        stream->ifmt = av_find_input_format(arg);
        if (!stream->ifmt)
886
            ERROR("Unknown input format: '%s'\n", arg);
887 888
    } else if (!av_strcasecmp(cmd, "FaviconURL")) {
        if (stream->stream_type == STREAM_TYPE_STATUS)
889 890
            ffserver_get_arg(stream->feed_filename,
                    sizeof(stream->feed_filename), p);
891 892 893 894 895 896 897
        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];
898
        int i;
899 900 901 902
        ffserver_get_arg(arg, sizeof(arg), p);
        for (i = 0; i < strlen(cmd); i++)
            key[i] = av_tolower(cmd[i]);
        key[i] = 0;
903 904
        WARNING("Deprecated '%s' option in configuration file. Use "
                "'Metadata %s VALUE' instead.\n", cmd, key);
905 906
        if (av_dict_set(&stream->metadata, key, arg, 0) < 0)
            goto nomem;
907 908 909
    } else if (!av_strcasecmp(cmd, "Metadata")) {
        ffserver_get_arg(arg, sizeof(arg), p);
        ffserver_get_arg(arg2, sizeof(arg2), p);
910 911
        if (av_dict_set(&stream->metadata, arg, arg2, 0) < 0)
            goto nomem;
912 913 914 915 916 917 918
    } 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);
919
        ffserver_set_codec(config->dummy_actx, arg, config);
920 921
    } else if (!av_strcasecmp(cmd, "VideoCodec")) {
        ffserver_get_arg(arg, sizeof(arg), p);
922
        ffserver_set_codec(config->dummy_vctx, arg, config);
923 924 925 926
    } 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")) {
927
        float f;
928
        ffserver_get_arg(arg, sizeof(arg), p);
929
        ffserver_set_float_param(&f, arg, 1000, -FLT_MAX, FLT_MAX, config,
930
                "Invalid %s: '%s'\n", cmd, arg);
931
        if (ffserver_save_avoption_int("b", (int64_t)lrintf(f),
932
                                       AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
933
            goto nomem;
934 935
    } else if (!av_strcasecmp(cmd, "AudioChannels")) {
        ffserver_get_arg(arg, sizeof(arg), p);
936
        if (ffserver_save_avoption("ac", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
937
            goto nomem;
938 939
    } else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
        ffserver_get_arg(arg, sizeof(arg), p);
940
        if (ffserver_save_avoption("ar", arg, AV_OPT_FLAG_AUDIO_PARAM, config) < 0)
941
            goto nomem;
942 943
    } else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
        int minrate, maxrate;
944
        char *dash;
945
        ffserver_get_arg(arg, sizeof(arg), p);
946 947 948 949
        dash = strchr(arg, '-');
        if (dash) {
            *dash = '\0';
            dash++;
950 951
            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) {
952 953
                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)
954
                goto nomem;
955
            }
956
        } else
957
            ERROR("Incorrect format for VideoBitRateRange. It should be "
958
                  "<min>-<max>: '%s'.\n", arg);
959 960
    } else if (!av_strcasecmp(cmd, "Debug")) {
        ffserver_get_arg(arg, sizeof(arg), p);
961 962
        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)
963
            goto nomem;
964 965
    } else if (!av_strcasecmp(cmd, "Strict")) {
        ffserver_get_arg(arg, sizeof(arg), p);
966 967
        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)
968
            goto nomem;
969 970
    } else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
        ffserver_get_arg(arg, sizeof(arg), p);
971
        ffserver_set_int_param(&val, arg, 8*1024, 0, INT_MAX, config,
972
                "Invalid %s: '%s'", cmd, arg);
973
        if (ffserver_save_avoption_int("bufsize", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
974
            goto nomem;
975 976
    } else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
        ffserver_get_arg(arg, sizeof(arg), p);
977
        ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
978
                               "Invalid %s: '%s'", cmd, arg);
979
        if (ffserver_save_avoption_int("bt", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
980
            goto nomem;
981 982
    } else if (!av_strcasecmp(cmd, "VideoBitRate")) {
        ffserver_get_arg(arg, sizeof(arg), p);
983
        ffserver_set_int_param(&val, arg, 1000, INT_MIN, INT_MAX, config,
984
                               "Invalid %s: '%s'", cmd, arg);
985
        if (ffserver_save_avoption_int("b", val, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
986
           goto nomem;
987
    } else if (!av_strcasecmp(cmd, "VideoSize")) {
988
        int ret, w, h;
989
        ffserver_get_arg(arg, sizeof(arg), p);
990
        ret = av_parse_video_size(&w, &h, arg);
991 992
        if (ret < 0)
            ERROR("Invalid video size '%s'\n", arg);
993 994 995 996
        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)
997
                goto nomem;
998
        }
999 1000 1001 1002 1003
    } 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;
1004
    } else if (!av_strcasecmp(cmd, "PixelFormat")) {
1005
        enum AVPixelFormat pix_fmt;
1006
        ffserver_get_arg(arg, sizeof(arg), p);
1007 1008
        pix_fmt = av_get_pix_fmt(arg);
        if (pix_fmt == AV_PIX_FMT_NONE)
1009
            ERROR("Unknown pixel format: '%s'\n", arg);
1010
        else if (ffserver_save_avoption("pixel_format", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1011
            goto nomem;
1012 1013
    } else if (!av_strcasecmp(cmd, "VideoGopSize")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1014
        if (ffserver_save_avoption("g", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1015
            goto nomem;
1016
    } else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
1017
        if (ffserver_save_avoption("g", "1", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1018
            goto nomem;
1019
    } else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
1020
        if (ffserver_save_avoption("mbd", "+bits", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1021
            goto nomem;
1022
    } else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
1023 1024
        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)
1025
            goto nomem;
1026 1027
    } else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
               !av_strcasecmp(cmd, "AVOptionAudio")) {
1028
        int ret;
1029 1030
        ffserver_get_arg(arg, sizeof(arg), p);
        ffserver_get_arg(arg2, sizeof(arg2), p);
1031
        if (!av_strcasecmp(cmd, "AVOptionVideo"))
1032 1033
            ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_VIDEO_PARAM,
                                         config);
1034
        else
1035 1036
            ret = ffserver_save_avoption(arg, arg2, AV_OPT_FLAG_AUDIO_PARAM,
                                         config);
1037
        if (ret < 0)
1038
            goto nomem;
1039 1040 1041
    } else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
               !av_strcasecmp(cmd, "AVPresetAudio")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1042
        if (!av_strcasecmp(cmd, "AVPresetVideo"))
1043
            ffserver_opt_preset(arg, AV_OPT_FLAG_VIDEO_PARAM, config);
1044
        else
1045
            ffserver_opt_preset(arg, AV_OPT_FLAG_AUDIO_PARAM, config);
1046 1047
    } else if (!av_strcasecmp(cmd, "VideoTag")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1048
        if (strlen(arg) == 4 &&
1049 1050
            ffserver_save_avoption_int("codec_tag",
                                       MKTAG(arg[0], arg[1], arg[2], arg[3]),
1051 1052
                                       AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
            goto nomem;
1053
    } else if (!av_strcasecmp(cmd, "BitExact")) {
1054
        if (ffserver_save_avoption("flags", "+bitexact", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1055
            goto nomem;
1056
    } else if (!av_strcasecmp(cmd, "DctFastint")) {
1057
        if (ffserver_save_avoption("dct", "fastint", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1058
            goto nomem;
1059
    } else if (!av_strcasecmp(cmd, "IdctSimple")) {
1060
        if (ffserver_save_avoption("idct", "simple", AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1061
            goto nomem;
1062 1063
    } else if (!av_strcasecmp(cmd, "Qscale")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1064
        ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1065
                               "Invalid Qscale: '%s'\n", arg);
1066 1067 1068
        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)
1069
            goto nomem;
1070 1071
    } else if (!av_strcasecmp(cmd, "VideoQDiff")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1072
        if (ffserver_save_avoption("qdiff", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1073
            goto nomem;
1074 1075
    } else if (!av_strcasecmp(cmd, "VideoQMax")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1076
        if (ffserver_save_avoption("qmax", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1077
            goto nomem;
1078 1079
    } else if (!av_strcasecmp(cmd, "VideoQMin")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1080
        if (ffserver_save_avoption("qmin", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1081
            goto nomem;
1082 1083
    } else if (!av_strcasecmp(cmd, "LumiMask")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1084
        if (ffserver_save_avoption("lumi_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1085
            goto nomem;
1086 1087
    } else if (!av_strcasecmp(cmd, "DarkMask")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1088
        if (ffserver_save_avoption("dark_mask", arg, AV_OPT_FLAG_VIDEO_PARAM, config) < 0)
1089
            goto nomem;
1090
    } else if (!av_strcasecmp(cmd, "NoVideo")) {
1091
        config->no_video = 1;
1092
    } else if (!av_strcasecmp(cmd, "NoAudio")) {
1093
        config->no_audio = 1;
1094
    } else if (!av_strcasecmp(cmd, "ACL")) {
1095
        ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename,
1096
                config->line_num);
1097 1098 1099 1100 1101 1102 1103 1104
    } 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);
1105
        if (resolve_host(&stream->multicast_ip, arg))
1106
            ERROR("Invalid host/IP address: '%s'\n", arg);
1107 1108 1109 1110
        stream->is_multicast = 1;
        stream->loop = 1; /* default is looping */
    } else if (!av_strcasecmp(cmd, "MulticastPort")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1111
        ffserver_set_int_param(&val, arg, 0, 1, 65535, config,
1112
                "Invalid MulticastPort: '%s'\n", arg);
1113
        stream->multicast_port = val;
1114 1115
    } else if (!av_strcasecmp(cmd, "MulticastTTL")) {
        ffserver_get_arg(arg, sizeof(arg), p);
1116
        ffserver_set_int_param(&val, arg, 0, INT_MIN, INT_MAX, config,
1117
                "Invalid MulticastTTL: '%s'\n", arg);
1118
        stream->multicast_ttl = val;
1119 1120 1121
    } else if (!av_strcasecmp(cmd, "NoLoop")) {
        stream->loop = 0;
    } else if (!av_strcasecmp(cmd, "</Stream>")) {
1122
        config->stream_use_defaults &= 1;
1123
        if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm")) {
1124 1125
            if (config->dummy_actx->codec_id == AV_CODEC_ID_NONE)
                config->dummy_actx->codec_id = config->guessed_audio_codec_id;
1126 1127
            if (!config->no_audio &&
                config->dummy_actx->codec_id != AV_CODEC_ID_NONE) {
1128
                AVCodecContext *audio_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_actx->codec_id));
1129
                add_codec(stream, audio_enc, config);
1130
            }
1131 1132
            if (config->dummy_vctx->codec_id == AV_CODEC_ID_NONE)
                config->dummy_vctx->codec_id = config->guessed_video_codec_id;
1133 1134
            if (!config->no_video &&
                config->dummy_vctx->codec_id != AV_CODEC_ID_NONE) {
1135
                AVCodecContext *video_enc = avcodec_alloc_context3(avcodec_find_encoder(config->dummy_vctx->codec_id));
1136
                add_codec(stream, video_enc, config);
1137 1138
            }
        }
1139 1140
        av_dict_free(&config->video_opts);
        av_dict_free(&config->audio_opts);
1141 1142
        avcodec_free_context(&config->dummy_vctx);
        avcodec_free_context(&config->dummy_actx);
1143 1144
        config->no_video = 0;
        config->no_audio = 0;
1145
        *pstream = NULL;
1146 1147
    } else if (!av_strcasecmp(cmd, "File") ||
               !av_strcasecmp(cmd, "ReadOnlyFile")) {
1148 1149
        ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename),
                p);
1150 1151 1152 1153 1154 1155 1156 1157
    } 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;
1158 1159 1160 1161
    } else {
        ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);
    }
    return 0;
1162 1163 1164 1165
  nomem:
    av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");
    av_dict_free(&config->video_opts);
    av_dict_free(&config->audio_opts);
1166 1167
    avcodec_free_context(&config->dummy_vctx);
    avcodec_free_context(&config->dummy_actx);
1168
    return AVERROR(ENOMEM);
1169 1170
}

1171 1172
static int ffserver_parse_config_redirect(FFServerConfig *config,
                                          const char *cmd, const char **p,
1173
                                          FFServerStream **predirect)
1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193