/*

* Copyright (c) 2000, 2001, 2002 Fabrice Bellard

*

* This file is part of FFmpeg.

*

* FFmpeg is free software; you can redistribute it and/or

* modify it under the terms of the GNU Lesser General Public

* License as published by the Free Software Foundation; either

* version 2.1 of the License, or (at your option) any later version.

*

* FFmpeg is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

* Lesser General Public License for more details.

*

* You should have received a copy of the GNU Lesser General Public

* License along with FFmpeg; if not, write to the Free Software

* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

*/

#include <float.h>

#include "libavutil/opt.h"

#include "libavutil/parseutils.h"

#include "libavutil/avstring.h"

#include "libavutil/pixdesc.h"

#include "libavutil/avassert.h"

// FIXME those are internal headers, ffserver _really_ shouldn't use them

#include "libavformat/ffm.h"

#include "cmdutils.h"

#include "ffserver_config.h"

#define MAX_CHILD_ARGS 64

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

FFServerConfig *config);

static void vreport_config_error(const char *filename, int line_num,

int log_level, int *errors, const char *fmt,

va_list vl);

static void report_config_error(const char *filename, int line_num,

int log_level, int *errors, const char *fmt,

...);

#define ERROR(...) report_config_error(config->filename, config->line_num,\

AV_LOG_ERROR, &config->errors, __VA_ARGS__)

#define WARNING(...) report_config_error(config->filename, config->line_num,\

AV_LOG_WARNING, &config->warnings, __VA_ARGS__)

/* FIXME: make ffserver work with IPv6 */

/* resolve host with also IP address parsing */

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

{

if (!ff_inet_aton(hostname, sin_addr)) {

#if HAVE_GETADDRINFO

struct addrinfo *ai, *cur;

struct addrinfo hints = { 0 };

hints.ai_family = AF_INET;

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

return -1;

/* getaddrinfo returns a linked list of addrinfo structs.

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

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

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

if (cur->ai_family == AF_INET) {

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

freeaddrinfo(ai);

return 0;

}

}

freeaddrinfo(ai);

return -1;

#else

struct hostent *hp;

hp = gethostbyname(hostname);

if (!hp)

return -1;

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

#endif

}

return 0;

}

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

{

const char *p;

char *q;

int quote = 0;

p = *pp;

q = buf;

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

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

quote = *p++;

while (*p != '\0') {

if (quote && *p == quote || !quote && av_isspace(*p))

break;

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

*q++ = *p;

p++;

}

*q = '\0';

if (quote && *p == quote)

p++;

*pp = p;

}

void ffserver_parse_acl_row(FFServerStream *stream, FFServerStream* feed,

FFServerIPAddressACL *ext_acl,

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

{

char arg[1024];

FFServerIPAddressACL acl;

int errors = 0;

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

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

acl.action = IP_ALLOW;

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

acl.action = IP_DENY;

else {

fprintf(stderr, "%s:%d: ACL action '%s' should be ALLOW or DENY.\n",

filename, line_num, arg);

errors++;

}

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

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

fprintf(stderr,

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

filename, line_num, arg);

errors++;

} else

acl.last = acl.first;

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

if (arg[0]) {

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

fprintf(stderr,

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

filename, line_num, arg);

errors++;

}

}

if (!errors) {

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

FFServerIPAddressACL **naclp = 0;

acl.next = 0;

*nacl = acl;

if (stream)

naclp = &stream->acl;

else if (feed)

naclp = &feed->acl;

else if (ext_acl)

naclp = &ext_acl;

else {

fprintf(stderr, "%s:%d: ACL found not in <Stream> or <Feed>\n",

filename, line_num);

errors++;

}

if (naclp) {

while (*naclp)

naclp = &(*naclp)->next;

*naclp = nacl;

} else

av_free(nacl);

}

}

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

static void add_codec(FFServerStream *stream, AVCodecContext *av,

FFServerConfig *config)

{

AVStream *st;

AVDictionary **opts, *recommended = NULL;

char *enc_config;

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

return;

opts = av->codec_type == AVMEDIA_TYPE_AUDIO ?

&config->audio_opts : &config->video_opts;

av_dict_copy(&recommended, *opts, 0);

av_opt_set_dict2(av->priv_data, opts, AV_OPT_SEARCH_CHILDREN);

av_opt_set_dict2(av, opts, AV_OPT_SEARCH_CHILDREN);

if (av_dict_count(*opts))

av_log(NULL, AV_LOG_WARNING,

"Something is wrong, %d options are not set!\n",

av_dict_count(*opts));

if (!config->stream_use_defaults) {

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 */

/* compute default parameters */

switch(av->codec_type) {

case AVMEDIA_TYPE_AUDIO:

if (!av_dict_get(recommended, "ab", NULL, 0)) {

av->bit_rate = 64000;

av_dict_set_int(&recommended, "ab", av->bit_rate, 0);

WARNING("Setting default value for audio bit rate = %d. "

"Use NoDefaults to disable it.\n",

av->bit_rate);

}

if (!av_dict_get(recommended, "ar", NULL, 0)) {

av->sample_rate = 22050;

av_dict_set_int(&recommended, "ar", av->sample_rate, 0);

WARNING("Setting default value for audio sample rate = %d. "

"Use NoDefaults to disable it.\n",

av->sample_rate);

}

if (!av_dict_get(recommended, "ac", NULL, 0)) {

av->channels = 1;

av_dict_set_int(&recommended, "ac", av->channels, 0);

WARNING("Setting default value for audio channel count = %d. "

"Use NoDefaults to disable it.\n",

av->channels);

}

break;

case AVMEDIA_TYPE_VIDEO:

if (!av_dict_get(recommended, "b", NULL, 0)) {

av->bit_rate = 64000;

av_dict_set_int(&recommended, "b", av->bit_rate, 0);

WARNING("Setting default value for video bit rate = %d. "

"Use NoDefaults to disable it.\n",

av->bit_rate);

}

if (!av_dict_get(recommended, "time_base", NULL, 0)){

av->time_base.den = 5;

av->time_base.num = 1;

av_dict_set(&recommended, "time_base", "1/5", 0);

WARNING("Setting default value for video frame rate = %d. "

"Use NoDefaults to disable it.\n",

av->time_base.den);

}

if (!av_dict_get(recommended, "video_size", NULL, 0)) {

av->width = 160;

av->height = 128;

av_dict_set(&recommended, "video_size", "160x128", 0);

WARNING("Setting default value for video size = %dx%d. "

"Use NoDefaults to disable it.\n",

av->width, av->height);

}

/* Bitrate tolerance is less for streaming */

if (!av_dict_get(recommended, "bt", NULL, 0)) {

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

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

av_dict_set_int(&recommended, "bt", av->bit_rate_tolerance, 0);

WARNING("Setting default value for video bit rate tolerance = %d. "

"Use NoDefaults to disable it.\n",

av->bit_rate_tolerance);

}

if (!av_dict_get(recommended, "rc_eq", NULL, 0)) {

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

av_dict_set(&recommended, "rc_eq", "tex^qComp", 0);

WARNING("Setting default value for video rate control equation = "

"%s. Use NoDefaults to disable it.\n",

av->rc_eq);

}

if (!av_dict_get(recommended, "maxrate", NULL, 0)) {

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

av_dict_set_int(&recommended, "maxrate", av->rc_max_rate, 0);

WARNING("Setting default value for video max rate = %d. "

"Use NoDefaults to disable it.\n",

av->rc_max_rate);

}

if (av->rc_max_rate && !av_dict_get(recommended, "bufsize", NULL, 0)) {

av->rc_buffer_size = av->rc_max_rate;

av_dict_set_int(&recommended, "bufsize", av->rc_buffer_size, 0);

WARNING("Setting default value for video buffer size = %d. "

"Use NoDefaults to disable it.\n",

av->rc_buffer_size);

}

break;

default:

abort();

}

done:

st = av_mallocz(sizeof(AVStream));

if (!st)

return;

av_dict_get_string(recommended, &enc_config, '=', ',');

av_dict_free(&recommended);

av_stream_set_recommended_encoder_configuration(st, enc_config);

st->codec = av;

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

}

static int ffserver_set_codec(AVCodecContext *ctx, const char *codec_name,

FFServerConfig *config)

{

int ret;

AVCodec *codec = avcodec_find_encoder_by_name(codec_name);

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

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

&config->errors,

"Invalid codec name: '%s'\n", codec_name);

return 0;

}

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

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

return ret;

ctx->codec = codec;

}

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

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

&config->errors,

"Inconsistent configuration: trying to set '%s' "

"codec option, but '%s' codec is used previously\n",

codec_name, avcodec_get_name(ctx->codec_id));

return 0;

}

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

{

FILE *f=NULL;

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

int ret = 0;

AVCodecContext *avctx;

const AVCodec *codec;

switch(type) {

case AV_OPT_FLAG_AUDIO_PARAM:

avctx = config->dummy_actx;

break;

case AV_OPT_FLAG_VIDEO_PARAM:

avctx = config->dummy_vctx;

break;

default:

av_assert0(0);

}

codec = avcodec_find_encoder(avctx->codec_id);

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

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

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

return AVERROR(EINVAL);

}

while(!feof(f)){

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

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

continue;

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

if(e){

av_log(NULL, AV_LOG_ERROR, "%s: Invalid syntax: '%s'\n", filename,

line);

ret = AVERROR(EINVAL);

break;

}

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

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

{

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

break;

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

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

ret = AVERROR(EINVAL);

break;

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

break;

}

fclose(f);

return ret;

}

static AVOutputFormat *ffserver_guess_format(const char *short_name,

const char *filename,

const char *mime_type)

{

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

if (fmt) {

AVOutputFormat *stream_fmt;

char stream_format_name[64];

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

fmt->name);

stream_fmt = av_guess_format(stream_format_name, NULL, NULL);

if (stream_fmt)

fmt = stream_fmt;

}

return fmt;

}

static void vreport_config_error(const char *filename, int line_num,

int log_level, int *errors, const char *fmt,

va_list vl)

{

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

av_vlog(NULL, log_level, fmt, vl);

if (errors)

(*errors)++;

}

static void report_config_error(const char *filename, int line_num,

int log_level, int *errors,

const char *fmt, ...)

{

va_list vl;

va_start(vl, fmt);

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

va_end(vl);

}

static int ffserver_set_int_param(int *dest, const char *value, int factor,

int min, int max, FFServerConfig *config,

const char *error_msg, ...)

{

int tmp;

char *tailp;

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

goto error;

errno = 0;

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

if (tmp < min || tmp > max)

goto error;

if (factor) {

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

goto error;

tmp *= factor;

}

if (tailp[0] || errno)

goto error;

if (dest)

*dest = tmp;

return 0;

error:

if (config) {

va_list vl;

va_start(vl, error_msg);

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

&config->errors, error_msg, vl);

va_end(vl);

}

return AVERROR(EINVAL);

}

static int ffserver_set_float_param(float *dest, const char *value,

float factor, float min, float max,

FFServerConfig *config,

const char *error_msg, ...)

{

double tmp;

char *tailp;

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

goto error;

errno = 0;

tmp = strtod(value, &tailp);

if (tmp < min || tmp > max)

goto error;

if (factor)

tmp *= factor;

if (tailp[0] || errno)

goto error;

if (dest)

*dest = tmp;

return 0;

error:

if (config) {

va_list vl;

va_start(vl, error_msg);

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

&config->errors, error_msg, vl);

va_end(vl);

}

return AVERROR(EINVAL);

}

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

FFServerConfig *config)

{

static int hinted = 0;

int ret = 0;

AVDictionaryEntry *e;

const AVOption *o = NULL;

const char *option = NULL;

const char *codec_name = NULL;

char buff[1024];

AVCodecContext *ctx;

AVDictionary **dict;

enum AVCodecID guessed_codec_id;

switch (type) {

case AV_OPT_FLAG_VIDEO_PARAM:

ctx = config->dummy_vctx;

dict = &config->video_opts;

guessed_codec_id = config->guessed_video_codec_id != AV_CODEC_ID_NONE ?

config->guessed_video_codec_id : AV_CODEC_ID_H264;

break;

case AV_OPT_FLAG_AUDIO_PARAM:

ctx = config->dummy_actx;

dict = &config->audio_opts;

guessed_codec_id = config->guessed_audio_codec_id != AV_CODEC_ID_NONE ?

config->guessed_audio_codec_id : AV_CODEC_ID_AAC;

break;

default:

av_assert0(0);

}

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

//explicit private option

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

codec_name = buff;

if(!(option = strchr(buff, ':'))){

report_config_error(config->filename, config->line_num,

AV_LOG_ERROR, &config->errors,

"Syntax error. Unmatched ':'\n");

return -1;

}

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

option++;

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

return ret;

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

return -1;

} else {

option = opt;

}

o = av_opt_find(ctx, option, NULL, type | AV_OPT_FLAG_ENCODING_PARAM,

AV_OPT_SEARCH_CHILDREN);

if (!o &&

(!strcmp(option, "time_base") || !strcmp(option, "pixel_format") ||

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

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

if (!o) {

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

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

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

hinted = 1;

report_config_error(config->filename, config->line_num,

AV_LOG_ERROR, NULL, "If '%s' is a codec private"

"option, then prefix it with codec name, for "

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

opt, avcodec_get_name(guessed_codec_id) ,opt,

arg);

}

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

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

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

arg, av_err2str(ret));

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

if ((o->type == AV_OPT_TYPE_FLAGS) && arg &&

(arg[0] == '+' || arg[0] == '-'))

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

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

&config->errors, "Redeclaring value of option '%s'."

"Previous value was: '%s'.\n", opt, e->value);

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

return AVERROR(ENOMEM);

}

return 0;

}

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

int type, FFServerConfig *config)

{

char buf[22];

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

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

}

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

const char **p)

{

int val;

char arg[1024];

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

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

WARNING("Port option is deprecated. Use HTTPPort instead.\n");

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

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

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

if (val < 1024)

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

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

} else if (!av_strcasecmp(cmd, "HTTPBindAddress") ||

!av_strcasecmp(cmd, "BindAddress")) {

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

WARNING("BindAddress option is deprecated. Use HTTPBindAddress "

"instead.\n");

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

config->nb_max_http_connections = val;

if (config->nb_max_connections > config->nb_max_http_connections) {

ERROR("Inconsistent configuration: MaxClients(%d) > "

"MaxHTTPConnections(%d)\n", config->nb_max_connections,

config->nb_max_http_connections);

}

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

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

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

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

config->nb_max_connections = val;

if (config->nb_max_connections > config->nb_max_http_connections) {

ERROR("Inconsistent configuration: MaxClients(%d) > "

"MaxHTTPConnections(%d)\n", config->nb_max_connections,

config->nb_max_http_connections);

}

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

int64_t llval;

char *tailp;

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

errno = 0;

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

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

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

else

config->max_bandwidth = llval;

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

if (!config->debug) {

ffserver_get_arg(config->logfilename, sizeof(config->logfilename),

p);

}

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

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

} else if (!av_strcasecmp(cmd, "NoDefaults")) {

config->use_defaults = 0;

} else if (!av_strcasecmp(cmd, "UseDefaults")) {

config->use_defaults = 1;

} else

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

return 0;

}

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

FFServerStream **pfeed)

{

FFServerStream *feed;

char arg[1024];

av_assert0(pfeed);

feed = *pfeed;

if (!av_strcasecmp(cmd, "<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;

feed->child_argv = av_mallocz_array(MAX_CHILD_ARGS, sizeof(char *));

if (!feed->child_argv)

return AVERROR(ENOMEM);

for (i = 0; i < MAX_CHILD_ARGS - 2; i++) {

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

if (!arg[0])

break;

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

if (!feed->child_argv[i])

return AVERROR(ENOMEM);

}

feed->child_argv[i] =

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

(config->http_addr.sin_addr.s_addr == INADDR_ANY) ?

"127.0.0.1" : inet_ntoa(config->http_addr.sin_addr),

ntohs(config->http_addr.sin_port), feed->filename);

if (!feed->child_argv[i])

return AVERROR(ENOMEM);

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

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

config->line_num);

} else if (!av_strcasecmp(cmd, "File") ||

!av_strcasecmp(cmd, "ReadOnlyFile")) {

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

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

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

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

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

if (!arg[0]) {

feed->truncate = 1;

} else {

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

"Use Truncate alone with no arguments.\n");

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

}

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

char *p1;

double fsize;

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

p1 = arg;

fsize = strtod(p1, &p1);

switch(av_toupper(*p1)) {

case 'K':

fsize *= 1024;

break;

case 'M':

fsize *= 1024 * 1024;

break;

case 'G':

fsize *= 1024 * 1024 * 1024;

break;

default:

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

break;

}

feed->feed_max_size = (int64_t)fsize;

if (feed->feed_max_size < FFM_PACKET_SIZE*4) {

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

FFM_PACKET_SIZE*4);

}

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

*pfeed = NULL;

} else {

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

}

return 0;

}

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

FFServerStream **pstream)

{

char arg[1024], arg2[1024];

FFServerStream *stream;

int val;

av_assert0(pstream);

stream = *pstream;

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

char *q;

FFServerStream *s;

stream = av_mallocz(sizeof(FFServerStream));

if (!stream)

return AVERROR(ENOMEM);

config->dummy_actx = avcodec_alloc_context3(NULL);

config->dummy_vctx = avcodec_alloc_context3(NULL);

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

av_free(stream);

avcodec_free_context(&config->dummy_vctx);

avcodec_free_context(&config->dummy_actx);

return AVERROR(ENOMEM);

}

config->dummy_actx->codec_type = AVMEDIA_TYPE_AUDIO;

config->dummy_vctx->codec_type = AVMEDIA_TYPE_VIDEO;

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

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

if (q)

*q = '\0';

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

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

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

}

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

if (stream->fmt) {

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

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

} else {

config->guessed_audio_codec_id = AV_CODEC_ID_NONE;

config->guessed_video_codec_id = AV_CODEC_ID_NONE;

}

config->stream_use_defaults = config->use_defaults;

*pstream = stream;

return 0;

}

av_assert0(stream);

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

FFServerStream *sfeed;

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

sfeed = config->first_feed;

while (sfeed) {

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

break;

sfeed = sfeed->next_feed;

}

if (!sfeed)

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

stream->filename);

else

stream->feed = sfeed;

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

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

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

stream->stream_type = STREAM_TYPE_STATUS;

stream->fmt = NULL;

} else {

stream->stream_type = STREAM_TYPE_LIVE;

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

if (!strcmp(arg, "jpeg")) {

strcpy(arg, "singlejpeg");

stream->single_frame=1;

}

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

if (!stream->fmt)

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

}

if (stream->fmt) {

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

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

}

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

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

stream->ifmt = av_find_input_format(arg);

if (!stream->ifmt)

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

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

if (stream->stream_type == STREAM_TYPE_STATUS)

ffserver_get_arg(stream->feed_filename,

sizeof(stream->feed_filename), p);

else

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

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

!av_strcasecmp(cmd, "Comment") ||

!av_strcasecmp(cmd, "Copyright") ||

!av_strcasecmp(cmd, "Title")) {

char key[32];

int i;

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

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

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

key[i] = 0;

WARNING("Deprecated '%s' option in configuration file. Use "

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

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

goto nomem;

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

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

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

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

goto nomem;

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

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

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

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

stream->send_on_key = 1;

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

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

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

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

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

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

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

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

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

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

float f;

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

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

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

if (ffserver_save_avoption_int("ab", (int64_t)lrintf(f),

AV_OPT_FLAG_AUDIO_PARAM, config) < 0)

goto nomem;

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

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

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

goto nomem;

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

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

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

goto nomem;

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

int minrate, maxrate;

char *dash;

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

dash = strchr(arg, '-');

if (dash) {

*dash = '\0';

dash++;

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

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

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

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

goto nomem;

}

} else

ERROR("Incorrect format for VideoBitRateRange. It should be "

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

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

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

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

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

goto nomem;

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

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

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

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

goto nomem;

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

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

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

"Invalid %s: '%s'", cmd, arg);

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

goto nomem;

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

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

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

"Invalid %s: '%s'", cmd, arg);

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

goto nomem;

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

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

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

"Invalid %s: '%s'", cmd, arg);

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

goto nomem;

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

int ret, w, h;

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

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

if (ret < 0)

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

else {

if (w % 2 || h % 2)

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

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

goto nomem;

}

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

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

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

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

goto nomem;

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

enum AVPixelFormat pix_fmt;