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Sourcecode: vdr version File versions

bool cDvbDevice::SetPid ( cPidHandle *  Handle,
int  Type,
bool  On 
) [protected, virtual]

Does the actual PID setting on this device. On indicates whether the PID shall be added or deleted. Handle->handle can be used by the device to store information it needs to receive this PID (for instance a file handle). Handle->used indicated how many receivers are using this PID. Type indicates some special types of PIDs, which the device may need to set in a specific way.

Reimplemented from cDevice.

Definition at line 581 of file dvbdevice.c.

References cDevice::CardIndex(), and SetPlayMode().

Referenced by SetAudioTrackDevice().

{
  if (Handle->pid) {
     dmx_pes_filter_params pesFilterParams;
     memset(&pesFilterParams, 0, sizeof(pesFilterParams));
     if (On) {
        if (Handle->handle < 0) {
           Handle->handle = DvbOpen(DEV_DVB_DEMUX, CardIndex(), O_RDWR | O_NONBLOCK, true);
           if (Handle->handle < 0)
              return false;
           }
        pesFilterParams.pid     = Handle->pid;
        pesFilterParams.input   = DMX_IN_FRONTEND;
        pesFilterParams.output  = (Type <= ptTeletext && Handle->used <= 1) ? DMX_OUT_DECODER : DMX_OUT_TS_TAP;
        pesFilterParams.pes_type= PesTypes[Type < ptOther ? Type : ptOther];
        pesFilterParams.flags   = DMX_IMMEDIATE_START;
        if (ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams) < 0) {
           LOG_ERROR;
           return false;
           }
        }
     else if (!Handle->used) {
        CHECK(ioctl(Handle->handle, DMX_STOP));
        if (Type <= ptTeletext) {
           pesFilterParams.pid     = 0x1FFF;
           pesFilterParams.input   = DMX_IN_FRONTEND;
           pesFilterParams.output  = DMX_OUT_DECODER;
           pesFilterParams.pes_type= PesTypes[Type];
           pesFilterParams.flags   = DMX_IMMEDIATE_START;
           CHECK(ioctl(Handle->handle, DMX_SET_PES_FILTER, &pesFilterParams));
           if (PesTypes[Type] == DMX_PES_VIDEO) // let's only do this once
              SetPlayMode(pmNone); // necessary to switch a PID from DMX_PES_VIDEO/AUDIO to DMX_PES_OTHER
           }
        close(Handle->handle);
        Handle->handle = -1;
        }
     }
  return true;
}


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