/*
* parse_desc_mosaic.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_mosaic.h"
#include "descriptors/parse_desc.h"
/*=============================================================================================*/
// CONSTANTS
/*=============================================================================================*/
/*=============================================================================================*/
// MACROS
/*=============================================================================================*/
/*=============================================================================================*/
// FUNCTIONS
/*=============================================================================================*/
/* ----------------------------------------------------------------------- */
//
// mosaic_descriptor(){
// descriptor_tag 8 uimsbf
// descriptor_length 8 uimsbf
// mosaic_entry_point 1 bslbf
// number_of_horizontal_elementary_cells 3 uimsbf
// reserved_future_use 1 bslbf
// number_of_vertical_elementary_cells 3 uimsbf
// for (i=0;i<N; i++) {
// logical_cell_id 6 uimsbf
// reserved_future_use 7 bslbf
// logical_cell_presentation_info 3 uimsbf
// elementary_cell_field_length 8 uimsbf
// for (i=0;j<elementary_cell_field_length;j++) {
// reserved_future_use 2 bslbf
// elementary_cell_id 6 uimsbf
// }
// cell_linkage_info 8 uimsbf
// If (cell_linkage_info ==0x01){
// bouquet_id 16 uimsbf
// }
// If (cell_linkage_info ==0x02){
// original_network_id 16 uimsbf
// transport_stream_id 16 uimsbf
// service_id 16 uimsbf
// }
// If (cell_linkage_info ==0x03){
// original_network_id 16 uimsbf
// transport_stream_id 16 uimsbf
// service_id 16 uimsbf
// }
// If (cell_linkage_info ==0x04){
// original_network_id 16 uimsbf
// transport_stream_id 16 uimsbf
// service_id 16 uimsbf
// event_id 16 uimsbf
// }
// }
// }
/* ----------------------------------------------------------------------- */
void print_mosaic(struct Descriptor_mosaic *md, int level)
{
struct list_head *item, *safe;
struct list_head *item1, *safe1;
printf(" Descriptor: mosaic [0x%02x]\n", md->descriptor_tag) ;
printf(" Length: %d\n", md->descriptor_length) ;
printf(" mosaic_entry_point = %d\n", md->mosaic_entry_point) ;
printf(" number_of_horizontal_elementary_cells = %d\n", md->number_of_horizontal_elementary_cells) ;
printf(" number_of_vertical_elementary_cells = %d\n", md->number_of_vertical_elementary_cells) ;
list_for_each_safe(item,safe,&md->md_array) {
struct MD_entry *md_entry = list_entry(item, struct MD_entry, next);
// MD entry
printf(" -MD entry-\n") ;
printf(" logical_cell_id = %d\n", md_entry->logical_cell_id) ;
printf(" logical_cell_presentation_info = %d\n", md_entry->logical_cell_presentation_info) ;
printf(" elementary_cell_field_length = %d\n", md_entry->elementary_cell_field_length) ;
list_for_each_safe(item1,safe1,&md_entry->md1_array) {
struct MD1_entry *md1_entry = list_entry(item, struct MD1_entry, next);
// MD entry
printf(" -MD entry-\n") ;
printf(" elementary_cell_id = %d\n", md1_entry->elementary_cell_id) ;
}
printf(" cell_linkage_info = %d\n", md_entry->cell_linkage_info) ;
if (md_entry->cell_linkage_info == 0x1 )
{
printf(" bouquet_id = %d\n", md_entry->bouquet_id) ;
}
if (md_entry->cell_linkage_info == 0x2 )
{
printf(" original_network_id = %d\n", md_entry->original_network_id) ;
printf(" transport_stream_id = %d\n", md_entry->transport_stream_id) ;
printf(" service_id = %d\n", md_entry->service_id) ;
}
if (md_entry->cell_linkage_info == 0x3 )
{
printf(" original_network_id1 = %d\n", md_entry->original_network_id1) ;
printf(" transport_stream_id1 = %d\n", md_entry->transport_stream_id1) ;
printf(" service_id1 = %d\n", md_entry->service_id1) ;
}
if (md_entry->cell_linkage_info == 0x4 )
{
printf(" original_network_id2 = %d\n", md_entry->original_network_id2) ;
printf(" transport_stream_id2 = %d\n", md_entry->transport_stream_id2) ;
printf(" service_id2 = %d\n", md_entry->service_id2) ;
printf(" event_id = %d\n", md_entry->event_id) ;
}
}
}
/* ----------------------------------------------------------------------- */
struct Descriptor *parse_mosaic(struct TS_bits *bits, unsigned tag, unsigned len)
{
struct Descriptor_mosaic *md ;
unsigned byte ;
int end_buff_len ;
md = (struct Descriptor_mosaic *)malloc( sizeof(*md) ) ;
memset(md,0,sizeof(*md));
//== Parse data ==
INIT_LIST_HEAD(&md->next);
md->descriptor_tag = tag ; // already extracted by parse_desc()
md->descriptor_length = len ; // already extracted by parse_desc()
md->mosaic_entry_point = bits_get(bits, 1) ;
md->number_of_horizontal_elementary_cells = bits_get(bits, 3) ;
bits_skip(bits, 1) ;
md->number_of_vertical_elementary_cells = bits_get(bits, 3) ;
INIT_LIST_HEAD(&md->md_array) ;
end_buff_len = bits_len_calc(bits, -(md->descriptor_length - 1) ) ;
while (bits->buff_len > end_buff_len)
{
struct MD_entry *md_entry = malloc(sizeof(*md_entry));
memset(md_entry,0,sizeof(*md_entry));
list_add_tail(&md_entry->next,&md->md_array);
md_entry->logical_cell_id = bits_get(bits, 6) ;
bits_skip(bits, 7) ;
md_entry->logical_cell_presentation_info = bits_get(bits, 3) ;
md_entry->elementary_cell_field_length = bits_get(bits, 8) ;
INIT_LIST_HEAD(&md_entry->md1_array) ;
while (bits->buff_len >= 1)
{
struct MD1_entry *md1_entry = malloc(sizeof(*md1_entry));
memset(md1_entry,0,sizeof(*md1_entry));
list_add_tail(&md1_entry->next,&md_entry->md1_array);
bits_skip(bits, 2) ;
md1_entry->elementary_cell_id = bits_get(bits, 6) ;
}
md_entry->cell_linkage_info = bits_get(bits, 8) ;
if (md_entry->cell_linkage_info == 0x1 )
{
md_entry->bouquet_id = bits_get(bits, 16) ;
}
if (md_entry->cell_linkage_info == 0x2 )
{
md_entry->original_network_id = bits_get(bits, 16) ;
md_entry->transport_stream_id = bits_get(bits, 16) ;
md_entry->service_id = bits_get(bits, 16) ;
}
if (md_entry->cell_linkage_info == 0x3 )
{
md_entry->original_network_id1 = bits_get(bits, 16) ;
md_entry->transport_stream_id1 = bits_get(bits, 16) ;
md_entry->service_id1 = bits_get(bits, 16) ;
}
if (md_entry->cell_linkage_info == 0x4 )
{
md_entry->original_network_id2 = bits_get(bits, 16) ;
md_entry->transport_stream_id2 = bits_get(bits, 16) ;
md_entry->service_id2 = bits_get(bits, 16) ;
md_entry->event_id = bits_get(bits, 16) ;
}
}
return (struct Descriptor *)md ;
}
/* ----------------------------------------------------------------------- */
void free_mosaic(struct Descriptor_mosaic *md)
{
struct list_head *item, *safe;
struct list_head *item1, *safe1;
list_for_each_safe(item,safe,&md->md_array) {
struct MD_entry *md_entry = list_entry(item, struct MD_entry, next);
list_for_each_safe(item1,safe1,&md_entry->md1_array) {
struct MD1_entry *md1_entry = list_entry(item, struct MD1_entry, next);
free(md1_entry) ;
}
free(md_entry) ;
}
free(md) ;
}