/*****************************************************************************
* dvbpsi_pmt_sections_decode
*****************************************************************************
* PMT decoder.
*****************************************************************************/
void dvbpsi_pmt_sections_decode( dvbpsi_pmt_t* p_pmt,
dvbpsi_psi_section_t* p_section )
{
uint8_t* p_byte, * p_end;
/* sum: e0 67 f0 00 1b e0 6d f0 00 03 e0 70 f0 00 */
while ( p_section )
{
/* - PMT descriptors */
/* ... e0 67 f0 00 1b ... */
p_byte = p_section->p_payload_start + 4;// 0x1b (p_payload_start is start 0x02 pos to + 8Byte)
p_end = p_byte + ( ( (uint16_t) (p_section->p_payload_start[2] & 0x0f) << 8)// 0xf0
| p_section->p_payload_start[3]);// 0x00 --->0x1b+0
// DEBUG("p_section->p_payload_start :%p",p_section->p_payload_start);
//int n;
//for(n = 0; n< 100;n++){
// DEBUG(" %x",p_section->p_payload_start[n]);
//}
while ( p_byte + 2 <= p_end )
{
uint8_t i_tag = p_byte[0];
uint8_t i_length = p_byte[1];
if ( i_length + 2 <= p_end - p_byte )
dvbpsi_pmt_descriptor_add( p_pmt, i_tag, i_length, p_byte + 2 );//
p_byte += 2 + i_length;
}
/* - ESs */
/* p_byte = p_end = 0x1b */
int i =0;
for ( p_byte = p_end; p_byte + 5 <= p_section->p_payload_end; )
{/* p_byte->[1b e0 6d f0 00 03 e0 70 f0 00] */
uint8_t i_type = p_byte[0];// 1)1b
uint16_t i_pid = ( (uint16_t) (p_byte[1] & 0x1f) << 8) | p_byte[2];// 1)0x6d = 109
uint16_t i_es_length = ( (uint16_t) (p_byte[3] & 0x0f) << 8) | p_byte[4];// = 0x00
printf(" | type @ elementary_PID\n");
printf(" | 0x%02x @ 0x%x (%d) byte[%d] i_es_length =%d \n",i_type, i_pid, i_pid,++i,i_es_length);
dvbpsi_pmt_es_t * p_es = dvbpsi_pmt_es_add( p_pmt, i_type, i_pid );
/* - ES descriptors */
p_byte += 5;/* 03 e0 70 f0 00 */
p_end = p_byte + i_es_length;// 1)(p_byte += 5) + 0)
if ( p_end > p_section->p_payload_end )
{
p_end = p_section->p_payload_end;
}
while ( p_byte + 2 <= p_end )
{
uint8_t i_tag = p_byte[0];// 0x03
uint8_t i_length = p_byte[1];// 0xe0
if ( i_length + 2 <= p_end - p_byte )//
dvbpsi_pmt_es_descriptor_add( p_es, i_tag, i_length, p_byte + 2 );
p_byte += 2 + i_length;
}
}
p_section = p_section->p_next;
}
}
/*****************************************************************************
* dvbpsi_pmt_sections_decode
*****************************************************************************
* PMT decoder.
*****************************************************************************/
void dvbpsi_pmt_sections_decode(dvbpsi_pmt_t* p_pmt,
dvbpsi_psi_section_t* p_section)
{
uint8_t* p_byte, * p_end;
while (p_section)
{
/* - PMT descriptors */
p_byte = p_section->p_payload_start + 4;
p_end = p_byte + ( ((uint16_t)(p_section->p_payload_start[2] & 0x0f) << 8)
| p_section->p_payload_start[3]);
while (p_byte + 2 <= p_end)
{
uint8_t i_tag = p_byte[0];
uint8_t i_length = p_byte[1];
if (i_length + 2 <= p_end - p_byte)
dvbpsi_pmt_descriptor_add(p_pmt, i_tag, i_length, p_byte + 2);
p_byte += 2 + i_length;
}
/* - ESs */
for (p_byte = p_end; p_byte + 5 <= p_section->p_payload_end;)
{
uint8_t i_type = p_byte[0];
uint16_t i_pid = ((uint16_t)(p_byte[1] & 0x1f) << 8) | p_byte[2];
uint16_t i_es_length = ((uint16_t)(p_byte[3] & 0x0f) << 8) | p_byte[4];
dvbpsi_pmt_es_t* p_es = dvbpsi_pmt_es_add(p_pmt, i_type, i_pid);
/* - ES descriptors */
p_byte += 5;
p_end = p_byte + i_es_length;
if (p_end > p_section->p_payload_end)
{
p_end = p_section->p_payload_end;
}
while (p_byte + 2 <= p_end)
{
uint8_t i_tag = p_byte[0];
uint8_t i_length = p_byte[1];
if (i_length + 2 <= p_end - p_byte)
dvbpsi_pmt_es_descriptor_add(p_es, i_tag, i_length, p_byte + 2);
p_byte += 2 + i_length;
}
}
p_section = p_section->p_next;
}
}
