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The DVB devices now retune (and, if applicable, resend the DiSEqC data) if the lock is lost

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This commit is contained in:
Klaus Schmidinger 2006-01-01 12:22:18 +01:00
parent 0e6296699e
commit 06b2245bcd
3 changed files with 51 additions and 4 deletions
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2
CONTRIBUTORS
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@ -1012,6 +1012,8 @@ Reinhard Nissl <rnissl@gmx.de>
with post processing tools that choke on different ids
for fixing cDvbPlayer::SkipFrames() to properly handle radio recordings
for improving TS/PES conversion to better handle lost TS packets
for suggesting to make the DVB devices retune (and, if applicable, resend the
DiSEqC data) if the lock is lost
Richard Robson <richard_robson@beeb.net>
for reporting freezing replay if a timer starts while in Transfer Mode from the

4
HISTORY
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@ -3963,7 +3963,7 @@ Video Disk Recorder Revision History
commands may now be executed at any time, and the message will be displayed
(no more "pending message").
2005-12-31: Version 1.3.38
2006-01-01: Version 1.3.38
- Fixed handling second audio and Dolby Digital PIDs for encrypted channels
(was broken in version 1.3.37).
@ -4051,3 +4051,5 @@ Video Disk Recorder Revision History
so that they can provide the full file name of the recording. Plugins that use
these (or the related cStatus::Msg...() functions) need to be adapted
(suggested by Andreas Brugger).
- The DVB devices now retune (and, if applicable, resend the DiSEqC data) if
the lock is lost (based on a patch from Reinhard Nissl).

49
dvbdevice.c
View File

@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: dvbdevice.c 1.143 2005/12/29 13:49:09 kls Exp $
* $Id: dvbdevice.c 1.144 2006/01/01 12:03:31 kls Exp $
*/
#include "dvbdevice.h"
@ -40,6 +40,13 @@
#define DEV_DVB_AUDIO "audio"
#define DEV_DVB_CA "ca"
#define DVBS_TUNE_TIMEOUT 1000 //ms
#define DVBS_LOCK_TIMEOUT 1000 //ms
#define DVBC_TUNE_TIMEOUT 1000 //ms
#define DVBC_LOCK_TIMEOUT 1000 //ms
#define DVBT_TUNE_TIMEOUT 1000 //ms
#define DVBT_LOCK_TIMEOUT 1000 //ms
class cDvbName {
private:
char buffer[PATH_MAX];
@ -66,6 +73,8 @@ private:
enum eTunerStatus { tsIdle, tsSet, tsTuned, tsLocked };
int fd_frontend;
int cardIndex;
int tuneTimeout;
int lockTimeout;
fe_type_t frontendType;
cCiHandler *ciHandler;
cChannel channel;
@ -238,6 +247,9 @@ bool cDvbTuner::SetFrontend(void)
Frontend.inversion = fe_spectral_inversion_t(channel.Inversion());
Frontend.u.qpsk.symbol_rate = channel.Srate() * 1000UL;
Frontend.u.qpsk.fec_inner = fe_code_rate_t(channel.CoderateH());
tuneTimeout = DVBS_TUNE_TIMEOUT;
lockTimeout = DVBS_LOCK_TIMEOUT;
}
break;
case FE_QAM: { // DVB-C
@ -249,6 +261,9 @@ bool cDvbTuner::SetFrontend(void)
Frontend.u.qam.symbol_rate = channel.Srate() * 1000UL;
Frontend.u.qam.fec_inner = fe_code_rate_t(channel.CoderateH());
Frontend.u.qam.modulation = fe_modulation_t(channel.Modulation());
tuneTimeout = DVBC_TUNE_TIMEOUT;
lockTimeout = DVBC_LOCK_TIMEOUT;
}
break;
case FE_OFDM: { // DVB-T
@ -264,6 +279,9 @@ bool cDvbTuner::SetFrontend(void)
Frontend.u.ofdm.transmission_mode = fe_transmit_mode_t(channel.Transmission());
Frontend.u.ofdm.guard_interval = fe_guard_interval_t(channel.Guard());
Frontend.u.ofdm.hierarchy_information = fe_hierarchy_t(channel.Hierarchy());
tuneTimeout = DVBT_TUNE_TIMEOUT;
lockTimeout = DVBT_LOCK_TIMEOUT;
}
break;
default:
@ -279,6 +297,9 @@ bool cDvbTuner::SetFrontend(void)
void cDvbTuner::Action(void)
{
cTimeMs Timer;
bool LostLock = false;
time_t LastTimeoutReport = 0;
dvb_frontend_event event;
while (Running()) {
bool hasEvent = GetFrontendEvent(event, 1);
@ -291,18 +312,40 @@ void cDvbTuner::Action(void)
if (hasEvent)
continue;
tunerStatus = SetFrontend() ? tsTuned : tsIdle;
Timer.Set(tuneTimeout);
continue;
case tsTuned:
if (Timer.TimedOut()) {
tunerStatus = tsSet;
diseqcCommands = NULL;
if (time(NULL) - LastTimeoutReport > 60) { // let's not get too many of these
esyslog("ERROR: frontend %d timed out while tuning", cardIndex);
LastTimeoutReport = time(NULL);
}
continue;
}
case tsLocked:
if (hasEvent) {
if (event.status & FE_REINIT) {
tunerStatus = tsSet;
esyslog("ERROR: frontend %d was reinitialized - re-tuning", cardIndex);
diseqcCommands = NULL;
esyslog("ERROR: frontend %d was reinitialized", cardIndex);
}
else if (event.status & FE_HAS_LOCK) {
if (LostLock) {
esyslog("frontend %d regained lock", cardIndex);
LostLock = false;
LastTimeoutReport = 0;
}
if (event.status & FE_HAS_LOCK) {
tunerStatus = tsLocked;
locked.Broadcast();
}
else if (tunerStatus == tsLocked) {
LostLock = true;
esyslog("ERROR: frontend %d lost lock", cardIndex);
tunerStatus = tsTuned;
Timer.Set(lockTimeout);
}
continue;
}
}