int write_section(struct lib_ccx_ctx *ctx, struct ts_payload *payload, unsigned char*buf, int size, int pos)
{
if (payload->pesstart)
{
memcpy(payload->section_buf, buf, size);
payload->section_index = size;
payload->section_size = -1;
}
else
{
memcpy(payload->section_buf + payload->section_index, buf, size);
payload->section_index += size;
}
if(payload->section_size == -1 && payload->section_index >= 3)
payload->section_size = (RB16(payload->section_buf + 1) & 0xfff) + 3 ;
if(payload->section_index >= (unsigned)payload->section_size)
{
if(parse_PMT(ctx, payload->section_buf,payload->section_size,pos))
return 1;
}
return 0;
}
BOOL
parse_TS(BYTE *ts_stream)
{
uint8_t tsph.sync = TS_SYNC_BYTE(ts_stream);
if(tsph.sync != 0x47){
debuglog("sync bytes missed!");
return FALSE;
}
tsph.transport_error_indicator = TS_ERROR(ts_stream);
tsph.payload_uint_start_indicator = TS_PAYLOAD_START(ts_stream);
tsph.transport_priority = TS_PRIORITY(ts_stream);
tsph.PID = TS_PID(ts_stream);
tsph.transport_scrambling = TS_SCRAMBLING(ts_stream);
tsph.adaptation_field_control = TS_ADAPT_CTL(ts_stream);
tsph.continuity_counter = TS_CONT_COUNT(ts_stream);
debuglog("ts:transport_error_indicator:%d\n
payload_uint_start_indicator:%d\n
transport_priority:%d\n
PID:%d\n
transport_scrambling:%d\n
continuity_counter:%d\n",
tsph.transport_error_indicator,
tsph.payload_uint_start_indicator,
tsph.transport_priority,
tsph.PID,
tsph.transport_scrambling,
tsph.continuity_counter);
if(!tsph.transport_error_indicator)
{
int len = 0;
len += 4;
if(is_psi(tsph.PID))
{
if(tsph.payload_uint_start_indicator == 1)
{
tsph.pointer_field = TS_POINTER_FIELD(ts_stream + len);
len = len + tsph.pointer_field + 1;
}
else
{
/*TS包的净荷不带有PSI/SI包数据的第一个字节,没有pointer_field
*psi/si信息跨越两个ts包,不解析
*/
debuglog("此ts包是另一个psi/si表未完部分,暂为解析");
return FALSE;
}
switch(tsph.adaptation_field_control)
{
case 0x03:
/* 有adaptation,也有净荷 */
tsph.adaptation_fields = (tsadaptation_filed *)malloc(sizeof(tsadaptation_filed));
if(!tsph.adaptation_fields)
{
debuglog("malloc tsph.adaptation_field failed");
return FALSE;
}
tsph.adaptation_fields->adapt_field_len = TS_ADAPT_LEN(ts_stream);
len = len + tsph.adaptation_fields->adapt_field_len + 1; /* adapt_field_len表示在它后面的数据的长度 */
break;
case 0x01:/* 只有净荷数据 */
case 0x02:/* 只有adaptation */
case 0x00:/* 保留 */
default:
break;
}
BYTE* sec_start = ts_stream + len; /* psi/si表起始位置 */
switch(tsph.PID)
{
/* todo:对不同的错误可以给一个错误号 */
case 0x0000:
if(!parse_PAT(sec_start))
{
debuglog("parse pat failed!check log...");
return FALSE;
}
break;
case 0x0001:
if(!parse_CAT(sec_start))
{
debuglog("parse cat failed!check log...");
return FALSE;
}
break;
case 0x0010:
if(!parse_NIT(sec_start))
{
debuglog("parse nit failed!check log...");
return FALSE;
}
break;
case 0x0011:
if(!parse_SDT(sec_start))
{
debuglog("parse sdt failed!check log...");
return FALSE;
}
break;
case 0x0012:
if(!parse_EIT(sec_start))
{
debuglog("parse eit failed!check log...");
return FALSE;
}
break;
case 0x0014:
// parse_TDT();
// parse_TOD();
break;
default:
if(is_pmt_pid(tsph.PID))
{
parse_PMT(sec_start);
}
break;
}
}
else
{
if(is_es_pid(tsph.PID))
{
/*parse_ES()*/
}
else
{
/*parse_Others() */
}
}
}
else
{
debuglog("transport error!");
return FALSE;
}
free(tsph.adaptation_fields);
tsph.adaptation_fields = NULL;
return TRUE;
}
