📄 psi.c
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MemCopy((unsigned char *)&g_gen_si_info.pat_section,(unsigned char *)&g_default_pat_section,sizeof(SI_SECTION_DATA));
g_gen_si_info.pmt_section_number=0;
g_gen_si_info.cat_section.section_length=0;
g_gen_si_info.flag=1;
New_SDT.SectionCount=0;
Nit.TS_Count =0;
Eit.TS_Count =0;
return;
}
else
{/*获得PSI信息*/
MemCopy(buf,BD_FLASH_ADDR + 32*1024 + 4,PSILength);
tmp=0;
for(i=0;i<PSILength;i++)
tmp+=*(unsigned char *)(buf + i);
/*判断校验和是否一致*/
if(tmp!=VerifyFlag)
goto InvalidDataLabel;
/*----------------------------------------------------*/
/* load pat */
/*----------------------------------------------------*/
Offset=4;
Sections=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(Sections!=1)
goto InvalidDataLabel;
for(i=0;i<Sections;i++)
{/*填充PAT段*/
SectionLength=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
g_gen_si_info.pat_section.section_length=SectionLength;
g_gen_si_info.pat_section.pid=0;
g_gen_si_info.pat_section.continue_counter=0;
MemCopy(g_gen_si_info.pat_section.section,buf + Offset,SectionLength);
Offset+=SectionLength;
}
/*----------------------------------------------------*/
/* load cat */
/*----------------------------------------------------*/
g_gen_si_info.cat_section.section_length=0;
Sections=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(Sections>0)
{/*填充CAT段*/
if(Sections!=1)
goto InvalidDataLabel;
for(i=0;i<Sections;i++)
{
SectionLength=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
g_gen_si_info.cat_section.section_length=SectionLength;
g_gen_si_info.cat_section.pid=1;
g_gen_si_info.cat_section.continue_counter=0;
MemCopy(g_gen_si_info.cat_section.section,buf + Offset,SectionLength);
Offset+=SectionLength;
}
}
MemCopy((unsigned char *)&g_gen_si_info.updated_cat_section,(unsigned char *)&g_gen_si_info.cat_section,sizeof(SI_SECTION_DATA));
/*----------------------------------------------------*/
/* load pmt */
/*----------------------------------------------------*/
PMTs=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(PMTs>=32)
goto InvalidDataLabel;
g_gen_si_info.pmt_section_number=PMTs;
for(i=0;i<PMTs;i++)
{/*填充PMT段*/
Sections=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(Sections!=1)
goto InvalidDataLabel;
for(j=0;j<Sections;j++)
{
SectionLength=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
pid=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
g_gen_si_info.pmt_sectoin_list[i].section_length=SectionLength;
g_gen_si_info.pmt_sectoin_list[i].pid=pid;
g_gen_si_info.pmt_sectoin_list[i].continue_counter=0;
MemCopy(g_gen_si_info.pmt_sectoin_list[i].section,buf + Offset,SectionLength);
Offset+=SectionLength;
}
MemCopy((unsigned char *)&g_gen_si_info.updated_pmt_sectoin_list[i],(unsigned char *)&g_gen_si_info.pmt_sectoin_list[i],sizeof(SI_SECTION_DATA));
}
g_gen_si_info.flag=1;
/*----------------------------------------------------*/
/* load SDT */
/*----------------------------------------------------*/
Sections=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(Sections>16)
goto InvalidDataLabel;
New_SDT.SectionCount=Sections;
for(i=0;i<Sections;i++)
{/*填充SDT段*/
SectionLength=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(SectionLength>1100)
goto InvalidDataLabel;
New_SDT.SectionList[i].SectionLength=SectionLength;
MemCopy(New_SDT.SectionList[i].Section,buf + Offset,SectionLength);
Offset+=SectionLength;
}
/*----------------------------------------------------*/
/*load NIT */
/*----------------------------------------------------*/
Nit.TS_Count=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(Nit.TS_Count>16)
goto InvalidDataLabel;
Nit.Transport_Stream_ID=*(unsigned long *)(buf + Offset);
Offset +=sizeof(unsigned long);
Nit.Network_ID=*(unsigned long *)(buf + Offset);
Offset +=sizeof(unsigned long);
for(i=0;i<Nit.TS_Count;i++)
{/*填充NIT包*/
SectionLength=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(SectionLength!=188)
goto InvalidDataLabel;
MemCopy(Nit.NIT_TS[i],buf + Offset,SectionLength);
Offset+=SectionLength;
}
#if 0
/*----------------------------------------------------*/
/*Load EIT */
/*----------------------------------------------------*/
Eit.TS_Count=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
Eit.Present_Flowing_Flag=*(unsigned char *)(buf + Offset);
Offset+=sizeof(unsigned char);
Eit.Schedule_Flag =*(unsigned char *)(buf + Offset);
Offset+=sizeof(unsigned char);
for(i=0;i<Eit.TS_Count;i++)
{
SectionLength=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
MemCopy(Eit.EIT_TS[i],buf + Offset,SectionLength);
Offset+=SectionLength;
}
#endif
/*----------------------------------------------------*/
/* load PID remap table */
/*----------------------------------------------------*/
for(i=0;i<8;i++)
{
PID_Remap_Table_Item_Count[i]=*(unsigned short *)(buf + Offset);
Offset+=sizeof(unsigned short);
if(PID_Remap_Table_Item_Count[i]>256)
goto InvalidDataLabel;
for(j=0;j<PID_Remap_Table_Item_Count[i];j++)
{
pItem=(PID_REMAP_TABLE_ITEM *)(buf + Offset);
PID_Remap_Table_List[i][j].OldPID=pItem->OldPID;
PID_Remap_Table_List[i][j].NewPID=pItem->NewPID;
PID_Remap_Table_List[i][j].Output=pItem->Output;
Offset+=sizeof(PID_REMAP_TABLE_ITEM);
}
}
MemFree(buf);
return;
InvalidDataLabel:
MemFree(buf);
InitDefPATSection();
MemCopy((unsigned char *)&g_gen_si_info.pat_section,(unsigned char *)&g_default_pat_section,sizeof(SI_SECTION_DATA));
g_gen_si_info.pmt_section_number=0;
g_gen_si_info.cat_section.section_length=0;
New_SDT.SectionCount=0;
Nit.TS_Count =0;
Eit.TS_Count =0;
}
}
/*第一次写PID映射表到FPGA*/
unsigned long WriteReMapTableFirstTime(void)
{
int volatile i,j,k;
unsigned char volatile Msb;
unsigned char volatile MiddleByte;
unsigned char volatile Low4bits;
unsigned char volatile Found,Index;
unsigned short volatile PID9;
unsigned short volatile OldPID,NewPID;
unsigned char volatile Finished;
PID_MAP_TABLE Map;
InitPIDRemap();
for(i=0;i<8;i++)
{
Map.PIDs=0;
Finished=0;
for(j=0;j<PID_Remap_Table_Item_Count[i];j++)
{
OldPID=PID_Remap_Table_List[i][j].OldPID;
NewPID=PID_Remap_Table_List[i][j].NewPID;
if(PID_Remap_Table_List[i][j].Output)
{
PID9=OldPID&0x1FF0;
/*--------------------------------------------------*/
/* 搜索该PID9在MAP TABLE中的位置 */
/*--------------------------------------------------*/
Found=0;
for(k=0;k<Map.PIDs;k++)
{
if(Map.PID9[k]==PID9)
{
Found=1;
Index=k;
break;
}
}
if(!Found)
{
Index=Map.PIDs;
/*--------------------------------------------------*/
/* 如果生成的Index=0x0F，跳过不用 */
/*--------------------------------------------------*/
if(Index==0x0F)
{
Map.PID9[Index++]=0x1FFF;
Map.PIDs++;
}
Map.PID9[Index]=PID9;
Map.PIDs++;
}
/*------------------------------------------------------*/
/*级连口不超过64，其他口不超过32 */
/*------------------------------------------------------*/
if(i==0)
{
if(Index==0x40)
break;
}
else
{
if(Index==0x20)
break;
}
/*--------------------------------------------------*/
/* 如果是要复用的，需要将要复用的节目PID最高位置0 */
/* 反之要置为1 */
/*--------------------------------------------------*/
NewPID=NewPID&0x7FFF;
Msb =(unsigned char)((OldPID&0x1FFF)>>12);
MiddleByte =(unsigned char)((OldPID&0x0FF0)>>4);
Low4bits =(unsigned char)(OldPID&0x000F);
*(unsigned char *)(HIGH_INDEX_ADDR_REG_H_BASE_ADDR + i*0x100)=Msb;
*(unsigned char *)(HIGH_INDEX_ADDR_REG_L_BASE_ADDR + i*0x100)=MiddleByte;
*(unsigned char *)(HIGH_INDEX_REG_BASE_ADDR + i*0x100) =Index;
*(unsigned char *)(PID_DATA_H_REG_BASE_ADDR + i*0x100) =(unsigned char)((NewPID&0xFF00)>>8);
*(unsigned char *)(PID_DATA_L_REG_BASE_ADDR + i*0x100) =(unsigned char)(NewPID&0x00FF);
*(unsigned char *)(LOW_INDEX_REG_BASE_ADDR + i*0x100) =Low4bits;
}
else
continue;
}
}
return 0;
}
/*-----------------------------------------------------------------*/
/*往FPGA中写PID对照表 */
/*-----------------------------------------------------------------*/
unsigned long WriteReMapTable(void)
{
int volatile i,j,k,l;
unsigned char volatile Msb;
unsigned char volatile MiddleByte;
unsigned char volatile Low4bits;
unsigned char volatile Found,Index;
unsigned short volatile PID9;
unsigned short volatile OldPID,NewPID;
unsigned short OldPrgNo;
unsigned char volatile Finished;
PID_MAP_TABLE Map;
InitPIDRemap();
for(i=0;i<8;i++)
{
Map.PIDs=0;
Finished=0;
PID_Remap_Table_Item_Count[i]=0;
for(j=0;j<PID_Info[i].PIDs;j++)
{
OldPID=PID_Remap_Table_List[i][j].OldPID=PID_Info[i].PID_Map[j].OldPID;
NewPID=PID_Remap_Table_List[i][j].NewPID=PID_Info[i].PID_Map[j].SetPID;
PID_Remap_Table_Item_Count[i]++;
OldPrgNo=PID_Info[i].PID_Map[j].OldPrgNo;
/*if(PIDSelected(i,NewPID))*/
if(NewPID == 0x0C02)
my_Delay(10);/*by xu*/
if(PIDSelected(i,OldPID,NewPID,OldPrgNo))
{
PID_Remap_Table_List[i][j].Output=1;
PID9=OldPID&0x1FF0;
/*----------------------------------------------*/
/* 搜索该PID9在MAP TABLE中的位置 */
/*----------------------------------------------*/
Found=0;
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