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FFmpeg/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"
/* 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;
p = *pp;
while (av_isspace(*p)) p++;
q = buf;
quote = 0;
if (*p == '\"' || *p == '\'')
quote = *p++;
for(;;) {
if (quote) {
if (*p == quote)
break;
} else {
if (av_isspace(*p))
break;
}
if (*p == '\0')
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' is not ALLOW or DENY\n",
filename, line_num, arg);
errors++;
}
ffserver_get_arg(arg, sizeof(arg), &p);
if (resolve_host(&acl.first, arg) != 0) {
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) != 0) {
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)
{
AVStream *st;
if(stream->nb_streams >= FF_ARRAY_ELEMS(stream->streams))
return;
/* compute default parameters */
switch(av->codec_type) {
case AVMEDIA_TYPE_AUDIO:
if (av->bit_rate == 0)
av->bit_rate = 64000;
if (av->sample_rate == 0)
av->sample_rate = 22050;
if (av->channels == 0)
av->channels = 1;
break;
case AVMEDIA_TYPE_VIDEO:
if (av->bit_rate == 0)
av->bit_rate = 64000;
if (av->time_base.num == 0){
av->time_base.den = 5;
av->time_base.num = 1;
}
if (av->width == 0 || av->height == 0) {
av->width = 160;
av->height = 128;
}
/* Bitrate tolerance is less for streaming */
if (av->bit_rate_tolerance == 0)
av->bit_rate_tolerance = FFMAX(av->bit_rate / 4,
(int64_t)av->bit_rate*av->time_base.num/av->time_base.den);
if (av->qmin == 0)
av->qmin = 3;
if (av->qmax == 0)
av->qmax = 31;
if (av->max_qdiff == 0)
av->max_qdiff = 3;
av->qcompress = 0.5;
av->qblur = 0.5;
if (!av->nsse_weight)
av->nsse_weight = 8;
av->frame_skip_cmp = FF_CMP_DCTMAX;
if (!av->me_method)
av->me_method = ME_EPZS;
av->rc_buffer_aggressivity = 1.0;
if (!av->rc_eq)
av->rc_eq = av_strdup("tex^qComp");
if (!av->i_quant_factor)
av->i_quant_factor = -0.8;
if (!av->b_quant_factor)
av->b_quant_factor = 1.25;
if (!av->b_quant_offset)
av->b_quant_offset = 1.25;
if (!av->rc_max_rate)
av->rc_max_rate = av->bit_rate * 2;
if (av->rc_max_rate && !av->rc_buffer_size) {
av->rc_buffer_size = av->rc_max_rate;
}
break;
default:
abort();
}
st = av_mallocz(sizeof(AVStream));
if (!st)
return;
st->codec = av;
stream->streams[stream->nb_streams++] = st;
}
static enum AVCodecID opt_codec(const char *name, enum AVMediaType type)
{
AVCodec *codec = avcodec_find_encoder_by_name(name);
if (!codec || codec->type != type)
return AV_CODEC_ID_NONE;
return codec->id;
}
static int ffserver_opt_default(const char *opt, const char *arg,
AVCodecContext *avctx, int type)
{
int ret = 0;
const AVOption *o = av_opt_find(avctx, opt, NULL, type, 0);
if(o)
ret = av_opt_set(avctx, opt, arg, 0);
return ret;
}
static int ffserver_opt_preset(const char *arg,
AVCodecContext *avctx, int type,
enum AVCodecID *audio_id, enum AVCodecID *video_id)
{
FILE *f=NULL;
char filename[1000], tmp[1000], tmp2[1000], line[1000];
int ret = 0;
AVCodec *codec = NULL;
if (avctx)
codec = avcodec_find_encoder(avctx->codec_id);
if (!(f = get_preset_file(filename, sizeof(filename), arg, 0,
codec ? codec->name : NULL))) {
fprintf(stderr, "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){
fprintf(stderr, "%s: Invalid syntax: '%s'\n", filename, line);
ret = AVERROR(EINVAL);
break;
}
if (audio_id && !strcmp(tmp, "acodec")) {
*audio_id = opt_codec(tmp2, AVMEDIA_TYPE_AUDIO);
} else if (video_id && !strcmp(tmp, "vcodec")){
*video_id = opt_codec(tmp2, AVMEDIA_TYPE_VIDEO);
} else if(!strcmp(tmp, "scodec")) {
/* opt_subtitle_codec(tmp2); */
} else if (avctx && (ret = ffserver_opt_default(tmp, tmp2, avctx, type)) < 0) {
fprintf(stderr, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n", filename, line, tmp, tmp2);
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);
(*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, int line_num, 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, 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, int line_num, 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, line_num, AV_LOG_ERROR, &config->errors, error_msg, vl);
va_end(vl);
}
return AVERROR(EINVAL);
}
#define ERROR(...) report_config_error(config->filename, line_num, AV_LOG_ERROR, &config->errors, __VA_ARGS__)
#define WARNING(...) report_config_error(config->filename, line_num, AV_LOG_WARNING, &config->warnings, __VA_ARGS__)
static int ffserver_parse_config_global(FFServerConfig *config, const char *cmd,
const char **p, int line_num)
{
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);
val = atoi(arg);
if (val < 1 || val > 65536)
ERROR("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) != 0)
ERROR("%s:%d: 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);
val = atoi(arg);
if (val < 1 || val > 65536)
ERROR("%s:%d: Invalid port: %s\n", arg);
config->rtsp_addr.sin_port = htons(atoi(arg));
} else if (!av_strcasecmp(cmd, "RTSPBindAddress")) {
ffserver_get_arg(arg, sizeof(arg), p);
if (resolve_host(&config->rtsp_addr.sin_addr, arg) != 0)
ERROR("Invalid host/IP address: %s\n", arg);
} else if (!av_strcasecmp(cmd, "MaxHTTPConnections")) {
ffserver_get_arg(arg, sizeof(arg), p);
val = atoi(arg);
if (val < 1 || val > 65536)
ERROR("Invalid MaxHTTPConnections: %s\n", arg);
config->nb_max_http_connections = val;
} else if (!av_strcasecmp(cmd, "MaxClients")) {
ffserver_get_arg(arg, sizeof(arg), p);
val = atoi(arg);
if (val < 1 || val > config->nb_max_http_connections)
ERROR("Invalid MaxClients: %s\n", arg);
else
config->nb_max_connections = val;
} else if (!av_strcasecmp(cmd, "MaxBandwidth")) {
int64_t llval;
ffserver_get_arg(arg, sizeof(arg), p);
llval = strtoll(arg, NULL, 10);
if (llval < 10 || llval > 10000000)
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 no longer supported\n");
} else
ERROR("Incorrect keyword: '%s'\n", cmd);
return 0;
}
static int ffserver_parse_config_feed(FFServerConfig *config, const char *cmd, const char **p,
int line_num, 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(64 * sizeof(char *));
if (!feed->child_argv)
return AVERROR(ENOMEM);
for (i = 0; i < 62; 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, 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;
}
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_apply_stream_config(AVCodecContext *enc, const AVDictionary *conf, AVDictionary **opts)
{
AVDictionaryEntry *e;
int ret = 0;
/* Return values from ffserver_set_*_param are ignored.
Values are initially parsed and checked before inserting to AVDictionary. */
//video params
if ((e = av_dict_get(conf, "VideoBitRateRangeMin", NULL, 0)))
ffserver_set_int_param(&enc->rc_min_rate, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoBitRateRangeMax", NULL, 0)))
ffserver_set_int_param(&enc->rc_max_rate, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "Debug", NULL, 0)))
ffserver_set_int_param(&enc->debug, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "Strict", NULL, 0)))
ffserver_set_int_param(&enc->strict_std_compliance, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoBufferSize", NULL, 0)))
ffserver_set_int_param(&enc->rc_buffer_size, e->value, 8*1024, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoBitRateTolerance", NULL, 0)))
ffserver_set_int_param(&enc->bit_rate_tolerance, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoBitRate", NULL, 0)))
ffserver_set_int_param(&enc->bit_rate, e->value, 1000, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoSizeWidth", NULL, 0)))
ffserver_set_int_param(&enc->width, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoSizeHeight", NULL, 0)))
ffserver_set_int_param(&enc->height, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "PixelFormat", NULL, 0)))
ffserver_set_int_param(&enc->pix_fmt, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoGopSize", NULL, 0)))
ffserver_set_int_param(&enc->gop_size, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoFrameRateNum", NULL, 0)))
ffserver_set_int_param(&enc->time_base.num, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoFrameRateDen", NULL, 0)))
ffserver_set_int_param(&enc->time_base.den, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoQDiff", NULL, 0)))
ffserver_set_int_param(&enc->max_qdiff, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoQMax", NULL, 0)))
ffserver_set_int_param(&enc->qmax, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "VideoQMin", NULL, 0)))
ffserver_set_int_param(&enc->qmin, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "LumiMask", NULL, 0)))
ffserver_set_float_param(&enc->lumi_masking, e->value, 0, -FLT_MAX, FLT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "DarkMask", NULL, 0)))
ffserver_set_float_param(&enc->dark_masking, e->value, 0, -FLT_MAX, FLT_MAX, NULL, 0, NULL);
if (av_dict_get(conf, "BitExact", NULL, 0))
enc->flags |= CODEC_FLAG_BITEXACT;
if (av_dict_get(conf, "DctFastint", NULL, 0))
enc->dct_algo = FF_DCT_FASTINT;
if (av_dict_get(conf, "IdctSimple", NULL, 0))
enc->idct_algo = FF_IDCT_SIMPLE;
if (av_dict_get(conf, "VideoHighQuality", NULL, 0))
enc->mb_decision = FF_MB_DECISION_BITS;
if ((e = av_dict_get(conf, "VideoTag", NULL, 0)))
enc->codec_tag = MKTAG(e->value[0], e->value[1], e->value[2], e->value[3]);
if (av_dict_get(conf, "Qscale", NULL, 0)) {
enc->flags |= CODEC_FLAG_QSCALE;
ffserver_set_int_param(&enc->global_quality, e->value, FF_QP2LAMBDA, INT_MIN, INT_MAX, NULL, 0, NULL);
}
if (av_dict_get(conf, "Video4MotionVector", NULL, 0)) {
enc->mb_decision = FF_MB_DECISION_BITS; //FIXME remove
enc->flags |= CODEC_FLAG_4MV;
}
//audio params
if ((e = av_dict_get(conf, "AudioChannels", NULL, 0)))
ffserver_set_int_param(&enc->channels, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "AudioSampleRate", NULL, 0)))
ffserver_set_int_param(&enc->sample_rate, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
if ((e = av_dict_get(conf, "AudioBitRate", NULL, 0)))
ffserver_set_int_param(&enc->bit_rate, e->value, 0, INT_MIN, INT_MAX, NULL, 0, NULL);
av_opt_set_dict2(enc, opts, AV_OPT_SEARCH_CHILDREN);
e = NULL;
while (e = av_dict_get(*opts, "", e, AV_DICT_IGNORE_SUFFIX)) {
av_log(NULL, AV_LOG_ERROR, "Provided AVOption '%s' doesn't match any existing option.\n", e->key);
ret = AVERROR(EINVAL);
}
return ret;
}
static int ffserver_parse_config_stream(FFServerConfig *config, const char *cmd, const char **p,
int line_num, FFServerStream **pstream)
{
char arg[1024], arg2[1024];
FFServerStream *stream;
av_assert0(pstream);
stream = *pstream;
if (!av_strcasecmp(cmd, "<Stream")) {
char *q;
FFServerStream *s;
stream = av_mallocz(sizeof(FFServerStream));
if (!stream)
return AVERROR(ENOMEM);
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->audio_id = stream->fmt->audio_codec;
config->video_id = stream->fmt->video_codec;
} else {
config->audio_id = AV_CODEC_ID_NONE;
config->video_id = AV_CODEC_ID_NONE;
}
*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->audio_id = stream->fmt->audio_codec;
config->video_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("'%s' option in configuration file is deprecated, "
"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);
config->audio_id = opt_codec(arg, AVMEDIA_TYPE_AUDIO);
if (config->audio_id == AV_CODEC_ID_NONE)
ERROR("Unknown AudioCodec: %s\n", arg);
} else if (!av_strcasecmp(cmd, "VideoCodec")) {
ffserver_get_arg(arg, sizeof(arg), p);
config->video_id = opt_codec(arg, AVMEDIA_TYPE_VIDEO);
if (config->video_id == AV_CODEC_ID_NONE)
ERROR("Unknown VideoCodec: %s\n", arg);
} 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, 0, FLT_MAX, config, line_num, "Invalid %s: %s\n", cmd, arg);
if (av_dict_set_int(&config->audio_conf, cmd, lrintf(f), 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "AudioChannels")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, 1, 8, config, line_num, "Invalid %s: %s, valid range is 1-8.", cmd, arg);
if (av_dict_set(&config->audio_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "AudioSampleRate")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, 0, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->audio_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoBitRateRange")) {
int minrate, maxrate;
ffserver_get_arg(arg, sizeof(arg), p);
if (sscanf(arg, "%d-%d", &minrate, &maxrate) == 2) {
if (av_dict_set_int(&config->video_conf, "VideoBitRateRangeMin", minrate, 0) < 0 ||
av_dict_set_int(&config->video_conf, "VideoBitRateRangeMax", maxrate, 0) < 0)
goto nomem;
} else
ERROR("Incorrect format for VideoBitRateRange -- should be <min>-<max>: %s\n", arg);
} else if (!av_strcasecmp(cmd, "Debug")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "Strict")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoBufferSize")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 8*1024, 0, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoBitRateTolerance")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 1000, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoBitRate")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 1000, 0, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 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 % 16) || (h % 16))
ERROR("Image size must be a multiple of 16\n");
if (av_dict_set_int(&config->video_conf, "VideoSizeWidth", w, 0) < 0 ||
av_dict_set_int(&config->video_conf, "VideoSizeHeight", h, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoFrameRate")) {
AVRational frame_rate;
ffserver_get_arg(arg, sizeof(arg), p);
if (av_parse_video_rate(&frame_rate, arg) < 0) {
ERROR("Incorrect frame rate: %s\n", arg);
} else {
if (av_dict_set_int(&config->video_conf, "VideoFrameRateNum", frame_rate.num, 0) < 0 ||
av_dict_set_int(&config->video_conf, "VideoFrameRateDen", frame_rate.den, 0) < 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);
if (pix_fmt == AV_PIX_FMT_NONE)
ERROR("Unknown pixel format: %s\n", arg);
if (av_dict_set_int(&config->video_conf, cmd, pix_fmt, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoGopSize")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, INT_MIN, INT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoIntraOnly")) {
if (av_dict_set(&config->video_conf, cmd, "1", 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoHighQuality")) {
if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "Video4MotionVector")) {
if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "AVOptionVideo") ||
!av_strcasecmp(cmd, "AVOptionAudio")) {
AVDictionary **dict;
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_get_arg(arg2, sizeof(arg2), p);
if (!av_strcasecmp(cmd, "AVOptionVideo"))
dict = &config->video_opts;
else
dict = &config->audio_opts;
if (av_dict_set(dict, arg, arg2, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "AVPresetVideo") ||
!av_strcasecmp(cmd, "AVPresetAudio")) {
char **preset = NULL;
ffserver_get_arg(arg, sizeof(arg), p);
if (!av_strcasecmp(cmd, "AVPresetVideo")) {
preset = &config->video_preset;
ffserver_opt_preset(arg, NULL, 0, NULL, &config->video_id);
} else {
preset = &config->audio_preset;
ffserver_opt_preset(arg, NULL, 0, &config->audio_id, NULL);
}
*preset = av_strdup(arg);
if (!preset)
return AVERROR(ENOMEM);
} else if (!av_strcasecmp(cmd, "VideoTag")) {
ffserver_get_arg(arg, sizeof(arg), p);
if (strlen(arg) == 4) {
if (av_dict_set(&config->video_conf, "VideoTag", "arg", 0) < 0)
goto nomem;
}
} else if (!av_strcasecmp(cmd, "BitExact")) {
if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "DctFastint")) {
if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "IdctSimple")) {
if (av_dict_set(&config->video_conf, cmd, "", 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "Qscale")) {
ffserver_get_arg(arg, sizeof(arg), p);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoQDiff")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, 1, 31, config, line_num, "%s out of range\n", cmd);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoQMax")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, 1, 31, config, line_num, "%s out of range\n", cmd);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "VideoQMin")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_int_param(NULL, arg, 0, 1, 31, config, line_num, "%s out of range\n", cmd);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "LumiMask")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_float_param(NULL, arg, 0, -FLT_MAX, FLT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "DarkMask")) {
ffserver_get_arg(arg, sizeof(arg), p);
ffserver_set_float_param(NULL, arg, 0, -FLT_MAX, FLT_MAX, config, line_num, "Invalid %s: %s", cmd, arg);
if (av_dict_set(&config->video_conf, cmd, arg, 0) < 0)
goto nomem;
} else if (!av_strcasecmp(cmd, "NoVideo")) {
config->video_id = AV_CODEC_ID_NONE;
} else if (!av_strcasecmp(cmd, "NoAudio")) {
config->audio_id = AV_CODEC_ID_NONE;
} else if (!av_strcasecmp(cmd, "ACL")) {
ffserver_parse_acl_row(stream, NULL, NULL, *p, config->filename, line_num);
} 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);
if (resolve_host(&stream->multicast_ip, arg) != 0)
ERROR("Invalid host/IP address: %s\n", arg);
stream->is_multicast = 1;
stream->loop = 1; /* default is looping */
} else if (!av_strcasecmp(cmd, "MulticastPort")) {
ffserver_get_arg(arg, sizeof(arg), p);
stream->multicast_port = atoi(arg);
} else if (!av_strcasecmp(cmd, "MulticastTTL")) {
ffserver_get_arg(arg, sizeof(arg), p);
stream->multicast_ttl = atoi(arg);
} else if (!av_strcasecmp(cmd, "NoLoop")) {
stream->loop = 0;
} else if (!av_strcasecmp(cmd, "</Stream>")) {
if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
if (config->audio_id != AV_CODEC_ID_NONE) {
AVCodecContext *audio_enc = avcodec_alloc_context3(avcodec_find_encoder(config->audio_id));
if (config->audio_preset &&
ffserver_opt_preset(arg, audio_enc, AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_ENCODING_PARAM,
NULL, NULL) < 0)
ERROR("Could not apply preset '%s'\n", arg);
if (ffserver_apply_stream_config(audio_enc, config->audio_conf, &config->audio_opts) < 0)
config->errors++;
add_codec(stream, audio_enc);
}
if (config->video_id != AV_CODEC_ID_NONE) {
AVCodecContext *video_enc = avcodec_alloc_context3(avcodec_find_encoder(config->video_id));
if (config->video_preset &&
ffserver_opt_preset(arg, video_enc, AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_ENCODING_PARAM,
NULL, NULL) < 0)
ERROR("Could not apply preset '%s'\n", arg);
if (ffserver_apply_stream_config(video_enc, config->video_conf, &config->video_opts) < 0)
config->errors++;
add_codec(stream, video_enc);
}
}
av_dict_free(&config->video_opts);
av_dict_free(&config->video_conf);
av_dict_free(&config->audio_opts);
av_dict_free(&config->audio_conf);
av_freep(&config->video_preset);
av_freep(&config->audio_preset);
*pstream = NULL;
} else if (!av_strcasecmp(cmd, "File") || !av_strcasecmp(cmd, "ReadOnlyFile")) {
ffserver_get_arg(stream->feed_filename, sizeof(stream->feed_filename), p);
} else {
ERROR("Invalid entry '%s' inside <Stream></Stream>\n", cmd);
}
return 0;
nomem:
av_log(NULL, AV_LOG_ERROR, "Out of memory. Aborting.\n");
av_dict_free(&config->video_opts);
av_dict_free(&config->video_conf);
av_dict_free(&config->audio_opts);
av_dict_free(&config->audio_conf);
av_freep(&config->video_preset);
av_freep(&config->audio_preset);
return AVERROR(ENOMEM);
}
static int ffserver_parse_config_redirect(FFServerConfig *config, const char *cmd, const char **p,
int line_num, FFServerStream **predirect)
{
FFServerStream *redirect;
av_assert0(predirect);
redirect = *predirect;
if (!av_strcasecmp(cmd, "<Redirect")) {
char *q;
redirect = av_mallocz(sizeof(FFServerStream));
if (!redirect)
return AVERROR(ENOMEM);
ffserver_get_arg(redirect->filename, sizeof(redirect->filename), p);
q = strrchr(redirect->filename, '>');
if (*q)
*q = '\0';
redirect->stream_type = STREAM_TYPE_REDIRECT;
*predirect = redirect;
return 0;
}
av_assert0(redirect);
if (!av_strcasecmp(cmd, "URL")) {
ffserver_get_arg(redirect->feed_filename, sizeof(redirect->feed_filename), p);
} else if (!av_strcasecmp(cmd, "</Redirect>")) {
if (!redirect->feed_filename[0])
ERROR("No URL found for <Redirect>\n");
*predirect = NULL;
} else {
ERROR("Invalid entry '%s' inside <Redirect></Redirect>\n", cmd);
}
return 0;
}
int ffserver_parse_ffconfig(const char *filename, FFServerConfig *config)
{
FILE *f;
char line[1024];
char cmd[64];
const char *p;
int line_num = 0;
FFServerStream **last_stream, *stream = NULL, *redirect = NULL;
FFServerStream **last_feed, *feed = NULL;
int ret = 0;
av_assert0(config);
f = fopen(filename, "r");
if (!f) {
ret = AVERROR(errno);
av_log(NULL, AV_LOG_ERROR, "Could not open the configuration file '%s'\n", filename);
return ret;
}
config->first_stream = NULL;
last_stream = &config->first_stream;
config->first_feed = NULL;
last_feed = &config->first_feed;
config->errors = config->warnings = 0;
for(;;) {
if (fgets(line, sizeof(line), f) == NULL)
break;
line_num++;
p = line;
while (av_isspace(*p))
p++;
if (*p == '\0' || *p == '#')
continue;
ffserver_get_arg(cmd, sizeof(cmd), &p);
if (feed || !av_strcasecmp(cmd, "<Feed")) {
int opening = !av_strcasecmp(cmd, "<Feed");
if (opening && (stream || feed || redirect)) {
ERROR("Already in a tag\n");
} else {
if ((ret = ffserver_parse_config_feed(config, cmd, &p, line_num, &feed)) < 0)
break;
if (opening) {
/* add in stream list */
*last_stream = feed;
last_stream = &feed->next;
/* add in feed list */
*last_feed = feed;
last_feed = &feed->next_feed;
}
}
} else if (stream || !av_strcasecmp(cmd, "<Stream")) {
int opening = !av_strcasecmp(cmd, "<Stream");
if (opening && (stream || feed || redirect)) {
ERROR("Already in a tag\n");
} else {
if ((ret = ffserver_parse_config_stream(config, cmd, &p, line_num, &stream)) < 0)
break;
if (opening) {
/* add in stream list */
*last_stream = stream;
last_stream = &stream->next;
}
}
} else if (redirect || !av_strcasecmp(cmd, "<Redirect")) {
int opening = !av_strcasecmp(cmd, "<Redirect");
if (opening && (stream || feed || redirect))
ERROR("Already in a tag\n");
else {
if ((ret = ffserver_parse_config_redirect(config, cmd, &p, line_num, &redirect)) < 0)
break;
if (opening) {
/* add in stream list */
*last_stream = redirect;
last_stream = &redirect->next;
}
}
} else {
ffserver_parse_config_global(config, cmd, &p, line_num);
}
}
fclose(f);
if (ret < 0)
return ret;
if (config->errors)
return AVERROR(EINVAL);
else
return 0;
}
#undef ERROR
#undef WARNING