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ffserver_config.c
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ffserver_config.c
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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
*/
#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, "mjpeg");
stream->fmt = ffserver_guess_format(arg, NULL, NULL);
if (!stream->fmt)
ERROR("Unknown Format: '%s'\n", arg);
}
if (stream->fmt) {
config->guessed_audio_codec_id = stream->fmt->audio_codec;
config->guessed_video_codec_id = stream->fmt->video_codec;
}
} else if (!av_strcasecmp(cmd, "InputFormat")) {
ffserver_get_arg(arg, sizeof(arg), p);
stream->ifmt = av_find_input_format(arg);
if (!stream->ifmt)
ERROR("Unknown input format: '%s'\n", arg);
} else if (!av_strcasecmp(cmd, "FaviconURL")) {
if (stream->stream_type == STREAM_TYPE_STATUS)
ffserver_get_arg(stream->feed_filename,
sizeof(stream->feed_filename), p);
else
ERROR("FaviconURL only permitted for status streams\n");
} else if (!av_strcasecmp(cmd, "Author") ||
!av_strcasecmp(cmd, "Comment") ||
!av_strcasecmp(cmd, "Copyright") ||
!av_strcasecmp(cmd, "Title")) {
char key[32];
int i;
ffserver_get_arg(arg, sizeof(arg), p);
for (i = 0; i < strlen(cmd); i++)
key[i] = av_tolower(cmd[i]);
key[i] = 0;
WARNING("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;
ffserver_get_arg(arg, sizeof(arg), p);
pix_fmt = av_get_pix_fmt(arg);