I make my own answer :-)
>
> 2. I want to get the PTS from the current V-PID. I have looked at the
> femon Plugin. This use a cReceiver which gives me an repacked TS with
> 188byts. I have surched for a Spec. which gives me more informations
> about the 188Byts.
> The first 16bit (12bit used) are the PID
> 8bit are the (PAYLOAD/ADAPT_FIELD)(don't know what it is)
> 8bit some kind of offset
> ......
>
> then femon sets a pointer to the receved paket+offset (named sb)
> next femon sets a new pointer to sb + sb[8] + 9 (named pay)
> after all pay shows to the video, audio or AC3 data.
>
> But how to get the PTS?
at this way I get a PTS for one PID. Now I need to deal more with
cReceiver and more PIDs.
Found at libdvbmpeg:
uint64_t cMyReceiver::trans_pts_dts(uint8_t *pts)
{
uint64_t wts;
wts = ((uint64_t)((pts[0] & 0x0E) << 5) |
((pts[1] & 0xFC) >> 2)) << 24;
wts |= (((pts[1] & 0x03) << 6) |
((pts[2] & 0xFC) >> 2)) << 16;
wts |= (((pts[2] & 0x02) << 6) |
((pts[3] & 0xFE) >> 1)) << 8;
wts |= (((pts[3] & 0x01) << 7) |
((pts[4] & 0xFE) >> 1));
return wts;
}
void cMyReceiver::Receive(uchar *Data, int Length)
{
int pid = ((Data[1] & 0x1f) << 8) | (Data[2]);
if (pid == m_VideoPid) {
uint8_t off = 0;
if (Data[3] & ADAPT_FIELD) {
off = Data[4] + 1;
}
printf("vpts : %fs\n",trans_pts_dts( (uint8_t*)(Data + 4 +
off)+9)/90000.);
}
}
It works fine.
