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/*****************************************************************
* gmerlin-avdecoder - a general purpose multimedia decoding library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#include <string.h>
#include <ctype.h>
#include <avdec_private.h>
#include <stdio.h>
#include <stdlib.h>
#define LOG_DOMAIN "r_asx"
static int probe_asx(bgav_input_context_t * input)
{
char * pos;
char buf[16];
int i;
/* We accept all files, which end with .asx */
if(input->filename)
{
pos = strrchr(input->filename, '.');
if(pos)
{
pos++;
if(!strcasecmp(pos, "asx"))
return 1;
}
}
if(bgav_input_get_data(input, (uint8_t*)buf, 16) < 16)
return 0;
for(i = 0; i < 16-4; i++)
{
if((buf[i+0] == '<') &&
(tolower(buf[i+1]) == 'a') &&
(tolower(buf[i+2]) == 's') &&
(tolower(buf[i+3]) == 'x'))
return 1;
}
return 0;
}
static int sc(const char * str1, const char * str2)
{
if((!str1) || (!str2))
return -1;
return strcasecmp(str1, str2);
}
static int count_urls(bgav_yml_node_t * n)
{
int ret = 0;
while(n)
{
if(!sc(n->name, "Entry"))
{
ret++;
}
else if(!sc(n->name, "Repeat"))
{
ret += count_urls(n->children);
}
n = n->next;
}
return ret;
}
static void get_url(bgav_yml_node_t * n, bgav_track_table_t * tt,
const char * title, int * index)
{
bgav_track_t * ret = tt->tracks[*index];
while(n)
{
if(!sc(n->name, "Title") && n->children)
{
if(title)
gavl_dictionary_set_string_nocopy(ret->metadata,
GAVL_META_LABEL,
bgav_sprintf("%s (%s)",
title, n->children->str));
else
gavl_dictionary_set_string(ret->metadata,
GAVL_META_LABEL,
n->children->str);
}
else if(!sc(n->name, "Ref"))
{
gavl_dictionary_set_string(ret->metadata,
GAVL_META_REFURL,
bgav_yml_get_attribute_i(n, "href"));
}
n = n->next;
}
if(!gavl_dictionary_get_string(ret->metadata, GAVL_META_LABEL))
{
gavl_dictionary_set_string_nocopy(ret->metadata,
GAVL_META_LABEL,
bgav_sprintf("Stream %d (%s)",
(*index)+1,
gavl_dictionary_get_string(ret->metadata,
GAVL_META_REFURL)));
}
(*index)++;
}
static int get_urls(bgav_yml_node_t * n,
bgav_track_table_t * ret,
const char * title, int * index)
{
while(n)
{
if(!sc(n->name, "Entry"))
{
get_url(n->children, ret, title, index);
}
else if(!sc(n->name, "Repeat"))
{
get_urls(n->children, ret, title, index);
}
n = n->next;
}
return 1;
}
static bgav_track_table_t * xml_2_asx(bgav_yml_node_t * n)
{
int index;
char * title;
bgav_yml_node_t * node;
int num_urls;
bgav_track_table_t * ret;
/* Count the entries and get the global title */
n = bgav_yml_find_by_name(n, "ASX");
if(!n)
return 0;
node = n->children;
num_urls = 0;
title = NULL;
/* Try to fetch a title */
while(node)
{
if(!sc(node->name, "Title") && node->children)
{
title = gavl_strdup(node->children->str);
}
node = node->next;
}
/* Count the entries */
num_urls = count_urls(n->children);
ret = bgav_track_table_create(num_urls);
/* Now, loop through all streams and collect the values */
index = 0;
get_urls(n->children, ret, title, &index);
if(title)
free(title);
return ret;
}
static bgav_track_table_t * parse_asx(bgav_input_context_t * input)
{
bgav_track_table_t * result;
bgav_yml_node_t * node;
node = bgav_input_get_yml(input);
if(!node)
{
gavl_log(GAVL_LOG_ERROR, LOG_DOMAIN,
"Parse asx failed (yml error)");
return 0;
}
result = xml_2_asx(node);
bgav_yml_free(node);
if(!result)
gavl_log(GAVL_LOG_ERROR, LOG_DOMAIN, "Parse asx failed");
return result;
}
const bgav_redirector_t bgav_redirector_asx =
{
.name = "ASX (Windows Media)",
.probe = probe_asx,
.parse = parse_asx,
};
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