/*
* parse_desc_extended_event.c
*
* Created by: si_desc.pl
* Created on: 20-May-2011
* Author: sdprice1
*/
// VERSION = 1.00
/*=============================================================================================*/
// USES
/*=============================================================================================*/
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <fcntl.h>
#include <inttypes.h>
#include "parse_desc_extended_event.h"
#include "descriptors/parse_desc.h"
/*=============================================================================================*/
// CONSTANTS
/*=============================================================================================*/
/*=============================================================================================*/
// MACROS
/*=============================================================================================*/
/*=============================================================================================*/
// FUNCTIONS
/*=============================================================================================*/
/* ----------------------------------------------------------------------- */
//
// extended_event_descriptor(){
// descriptor_tag 8 uimsbf
// descriptor_length 8 uimsbf
// descriptor_number 4 uimsbf
// last_descriptor_number 4 uimsbf
// ISO_639_language_code 24 bslbf
// length_of_items 8 uimsbf
// for ( i=0;i<N;i++){
// item_description_length 8 uimsbf
// for (j=0;j<N;j++){
// item_description_char 8 uimsbf
// }
// item_length 8 uimsbf
// for (j=0;j<N;j++){
// item_char 8 uimsbf
// }
// }
// text_length 8 uimsbf
// for (i=0;i<N;i++){
// text_char 8 uimsbf
// }
// }
/* ----------------------------------------------------------------------- */
void print_extended_event(struct Descriptor_extended_event *eed, int level)
{
struct list_head *item, *safe;
printf(" Descriptor: extended_event [0x%02x]\n", eed->descriptor_tag) ;
printf(" Length: %d\n", eed->descriptor_length) ;
printf(" descriptor_number = %d\n", eed->descriptor_number) ;
printf(" last_descriptor_number = %d\n", eed->last_descriptor_number) ;
printf(" ISO_639_language_code = %d\n", eed->ISO_639_language_code) ;
printf(" length_of_items = %d\n", eed->length_of_items) ;
list_for_each_safe(item,safe,&eed->eed_array) {
struct EED_entry *eed_entry = list_entry(item, struct EED_entry, next);
// EED entry
printf(" -EED entry-\n") ;
printf(" item_description_length = %d\n", eed_entry->item_description_length) ;
printf(" item_description = \"%s\"\n", eed_entry->item_description) ;
printf(" item_length = %d\n", eed_entry->item_length) ;
printf(" item = \"%s\"\n", eed_entry->item) ;
}
printf(" text_length = %d\n", eed->text_length) ;
printf(" text = \"%s\"\n", eed->text) ;
}
/* ----------------------------------------------------------------------- */
struct Descriptor *parse_extended_event(struct TS_bits *bits, unsigned tag, unsigned len)
{
struct Descriptor_extended_event *eed ;
unsigned byte ;
int end_buff_len ;
eed = (struct Descriptor_extended_event *)malloc( sizeof(*eed) ) ;
memset(eed,0,sizeof(*eed));
//== Parse data ==
INIT_LIST_HEAD(&eed->next);
eed->descriptor_tag = tag ; // already extracted by parse_desc()
eed->descriptor_length = len ; // already extracted by parse_desc()
eed->descriptor_number = bits_get(bits, 4) ;
eed->last_descriptor_number = bits_get(bits, 4) ;
eed->ISO_639_language_code = bits_get(bits, 24) ;
eed->length_of_items = bits_get(bits, 8) ;
INIT_LIST_HEAD(&eed->eed_array) ;
end_buff_len = bits_len_calc(bits, -(eed->descriptor_length - 5) ) ;
while (bits->buff_len > end_buff_len)
{
struct EED_entry *eed_entry = malloc(sizeof(*eed_entry));
memset(eed_entry,0,sizeof(*eed_entry));
list_add_tail(&eed_entry->next,&eed->eed_array);
eed_entry->item_description_length = bits_get(bits, 8) ;
end_buff_len = bits_len_calc(bits, -eed_entry->item_description_length) ;
eed_entry->item_description[0] = 0 ;
for (byte=0; (bits->buff_len > end_buff_len) && (byte < MAX_ITEM_DESCRIPTION_LEN); ++byte)
{
eed_entry->item_description[byte] = bits_get(bits, 8) ;
eed_entry->item_description[byte+1] = 0 ;
}
eed_entry->item_length = bits_get(bits, 8) ;
end_buff_len = bits_len_calc(bits, -eed_entry->item_length) ;
eed_entry->item[0] = 0 ;
for (byte=0; (bits->buff_len > end_buff_len) && (byte < MAX_ITEM_LEN); ++byte)
{
eed_entry->item[byte] = bits_get(bits, 8) ;
eed_entry->item[byte+1] = 0 ;
}
}
eed->text_length = bits_get(bits, 8) ;
end_buff_len = bits_len_calc(bits, -eed->text_length) ;
eed->text[0] = 0 ;
for (byte=0; (bits->buff_len > end_buff_len) && (byte < MAX_TEXT_LEN); ++byte)
{
eed->text[byte] = bits_get(bits, 8) ;
eed->text[byte+1] = 0 ;
}
return (struct Descriptor *)eed ;
}
/* ----------------------------------------------------------------------- */
void free_extended_event(struct Descriptor_extended_event *eed)
{
struct list_head *item, *safe;
list_for_each_safe(item,safe,&eed->eed_array) {
struct EED_entry *eed_entry = list_entry(item, struct EED_entry, next);
free(eed_entry) ;
}
free(eed) ;
}