TS流解析源码

/* TS流分析器*/
CTsParser::CTsParser()
{
m_pat_filter = NULL;
m_pat_buf = NULL;
m_pat_size = 0;
m_sdt_filter = NULL;
m_bufsize = 12*188*1024;
m_head = 0;
m_tail = 0;
if( spi.pmt_buf )
OCG_FREE( spi.pmt_buf );
position = m_pmtmap.GetNext( &pmt_pid, &spi, position );
}
m_pmtmap.RemoveAll();
/*清除SDT信息*/
position = m_sdtmap.GetFirst( &serv_id, &sdt );
p += 3;
memcpy( &sdt_multilingual_des->sdt_service_provider_name, p + 1, *p );
sdt_multilingual_des->sdt_service_provider_name[ *p ] = 0;
#include "Xml.h"
#include "osfile.h"
#include "TsParser.h"
#include "OcgMem.h"
#include "MptsTransfer.h"
#include "main.h"
#include "osfile.h"
#include "osdir.h"
m_buf = (unsigned char*)OCG_MALLOC( m_bufsize );
}
CTsParser::~CTsParser()
{
uint16_t pmt_pid, serv_id;
SProgInfo spi;
TSSDTInfo sdt;
void *position;
if( m_pat_filter )
如果pat版本号改变则删除所有patpmt记录重新生成所有信息ifmpatbufamp
非常实用的解析TS流源码
废话不说，直接上传源码。
TsParser.cpp：
#include "stdafx.h"
#include "crc.h"
#include "log.h"
#include "xstring.h"
while( serv_tmp ) {
if( !serv_tmp->next )
break;
serv_tmp = serv_tmp->next;
}
serv_tmp->next = sdt_service_des;
serv_tmp->next->next = NULL;
}
break;
case 0x5d:/* multilingul_service_name_descriptor */
serv_del->next = NULL;
OCG_FREE( serv_del );
}
}
if( sdt.sdt_multilingual_node ) {
TSSDTMultilingualInfo *multi_del, *multi_tmp = sdt.sdt_multilingual_node;
void *position;
TSSDTInfo* sdt_info = NULL;
TSSDTServiceInfo* sdt_service_des = NULL, *serv_tmp = NULL;
TSSDTMultilingualInfo* sdt_multilingual_des = NULL, *multi_tmp = NULL;
while( position ) {
if( sdt.sdt_service_node ) {
TSSDTServiceInfo *serv_del, *serv_tmp = sdt.sdt_service_node;
while( serv_tmp ) {
serv_del = serv_tmp;
serv_tmp = serv_tmp->next;
}
m_sdtmap.RemoveAll();
}
/* PAT/PMT-SECTION输出回调函数*/
void CTsParser::FilterProc( void* filter, unsigned char *buf, int32_t size, uint32_t lParam )
{
if( filter == ((CTsParser*)lParam)->m_pat_filter )
else
((CTsParser*)lParam)->OnPmtSection( filter, buf, size );
}
/* SDT-SECTION处理函数*/
bool CTsParser::OnSdtSection( void* filter, unsigned char *buf, int32_t size )
mutili_len = p[1];
p += 2;
q1 = p;
while( p < q1 + mutili_len && p < buf + size ) {
sdt_multilingual_des = (TSSDTMultilingualInfo*)OCG_MALLOC( sizeof(TSSDTMultilingualInfo) );
p += *p;
p += 1;
/*建立链表关系*/
if( !sdt_info->sdt_service_node ) {
sdt_info->sdt_service_node = sdt_service_des;
}
else {
serv_tmp = sdt_info->sdt_service_node;
return false;
p = buf;
p += 11;
while( p < buf + (size - 4) )
{
/* service_id */
service_id = (p[0]<<8) | p[1];
p += 2;
/* EIT... */
p += 1;
/* descriptor_loop_length */
sdt_info->bIsSucceed = true;
break;
}
else {
sdt_info = NULL;
}
position = m_sdtmap.GetNext( &sdt_service_id, NULL, position );
}
/*或许当前pat信息还没解析出来，存储结构还未建立好*/
switch( p[0] )
{
case 0x48:/* service_descriptor */
sdt_service_des = (TSSDTServiceInfo*)OCG_MALLOC( sizeof(TSSDTServiceInfo) );
if( !sdt_service_des )
return false;
m_sdt_filter = NULL;
}
if( m_buf )
{
OCG_FREE( m_buf );
m_buf = பைடு நூலகம்ULL;
}
position = m_pmtmap.GetFirst( &pmt_pid, &spi );
while( position )
{
if( spi.filter )
m_demux.DestroyFilter( spi.filter );
{
unsigned char *p, *q, *q1;
int32_t len, mutili_len;
uint16_t service_id, sdt_service_id;
uint32_t crc32, ival;
unsigned char version_number, section_number, last_section_number;
/* pat/pmt的尺寸不可能超过1024字节*/
if( 1024 < size || filter != m_sdt_filter )
return false;
/* CRC校验*/
crc32 = GetCrc32( buf, size-4 );
memcpy( &ival, buf+size-4, 4 );
((CTsParser*)lParam)->OnPatSection( filter, buf, size );
else if( filter == ((CTsParser*)lParam)->m_sdt_filter )
((CTsParser*)lParam)->OnSdtSection( filter, buf, size );
sdt_service_des->sdt_service_provider_name[ *p ] = 0;
p += *p;