/* * transfer.c: Transfer mode * * See the main source file 'vdr.c' for copyright information and * how to reach the author. * * $Id: transfer.c 2.8.1.1 2013/08/22 12:37:02 kls Exp $ */ #include "transfer.h" // --- cTransfer ------------------------------------------------------------- cTransfer::cTransfer(const cChannel *Channel) :cReceiver(Channel, TRANSFERPRIORITY) { patPmtGenerator.SetChannel(Channel); } cTransfer::~cTransfer() { cReceiver::Detach(); cPlayer::Detach(); } void cTransfer::Activate(bool On) { if (On) { PlayTs(patPmtGenerator.GetPat(), TS_SIZE); int Index = 0; while (uchar *pmt = patPmtGenerator.GetPmt(Index)) PlayTs(pmt, TS_SIZE); } else cPlayer::Detach(); } #define MAXRETRIES 20 // max. number of retries for a single TS packet #define RETRYWAIT 5 // time (in ms) between two retries void cTransfer::Receive(uchar *Data, int Length) { if (cPlayer::IsAttached()) { // Transfer Mode means "live tv", so there's no point in doing any additional // buffering here. The TS packets *must* get through here! However, every // now and then there may be conditions where the packet just can't be // handled when offered the first time, so that's why we try several times: for (int i = 0; i < MAXRETRIES; i++) { if (PlayTs(Data, Length) > 0) return; cCondWait::SleepMs(RETRYWAIT); } DeviceClear(); esyslog("ERROR: TS packet not accepted in Transfer Mode"); } } // --- cTransferControl ------------------------------------------------------ cDevice *cTransferControl::receiverDevice = NULL; cTransferControl::cTransferControl(cDevice *ReceiverDevice, const cChannel *Channel) :cControl(transfer = new cTransfer(Channel), true) { ReceiverDevice->AttachReceiver(transfer); receiverDevice = ReceiverDevice; } cTransferControl::~cTransferControl() { receiverDevice = NULL; delete transfer; }