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device.c
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/*
* device.c: The basic device interface
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* $Id: device.c 3.7 2014/01/02 10:31:58 kls Exp $
*/
#include "device.h"
#include <errno.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include "audio.h"
#include "channels.h"
#include "i18n.h"
#include "player.h"
#include "receiver.h"
#include "status.h"
#include "transfer.h"
// --- cLiveSubtitle ---------------------------------------------------------
class cLiveSubtitle : public cReceiver {
protected:
virtual void Receive(uchar *Data, int Length);
public:
cLiveSubtitle(int SPid);
virtual ~cLiveSubtitle();
};
cLiveSubtitle::cLiveSubtitle(int SPid)
{
AddPid(SPid);
}
cLiveSubtitle::~cLiveSubtitle()
{
cReceiver::Detach();
}
void cLiveSubtitle::Receive(uchar *Data, int Length)
{
if (cDevice::PrimaryDevice())
cDevice::PrimaryDevice()->PlayTs(Data, Length);
}
// --- cDeviceHook -----------------------------------------------------------
cDeviceHook::cDeviceHook(void)
{
cDevice::deviceHooks.Add(this);
}
bool cDeviceHook::DeviceProvidesTransponder(const cDevice *Device, const cChannel *Channel) const
{
return true;
}
// --- cDevice ---------------------------------------------------------------
// The minimum number of unknown PS1 packets to consider this a "pre 1.3.19 private stream":
#define MIN_PRE_1_3_19_PRIVATESTREAM 10
int cDevice::numDevices = 0;
int cDevice::useDevice = 0;
int cDevice::nextCardIndex = 0;
int cDevice::currentChannel = 1;
cDevice *cDevice::device[MAXDEVICES] = { NULL };
cDevice *cDevice::primaryDevice = NULL;
cList<cDeviceHook> cDevice::deviceHooks;
cDevice::cDevice(void)
:patPmtParser(true)
{
cardIndex = nextCardIndex++;
dsyslog("new device number %d", CardIndex() + 1);
SetDescription("receiver on device %d", CardIndex() + 1);
mute = false;
volume = Setup.CurrentVolume;
sectionHandler = NULL;
eitFilter = NULL;
patFilter = NULL;
sdtFilter = NULL;
nitFilter = NULL;
camSlot = NULL;
startScrambleDetection = 0;
occupiedTimeout = 0;
player = NULL;
isPlayingVideo = false;
keepTracks = false; // used in ClrAvailableTracks()!
ClrAvailableTracks();
currentAudioTrack = ttNone;
currentAudioTrackMissingCount = 0;
currentSubtitleTrack = ttNone;
liveSubtitle = NULL;
dvbSubtitleConverter = NULL;
autoSelectPreferredSubtitleLanguage = true;
for (int i = 0; i < MAXRECEIVERS; i++)
receiver[i] = NULL;
if (numDevices < MAXDEVICES)
device[numDevices++] = this;
else
esyslog("ERROR: too many devices!");
}
cDevice::~cDevice()
{
Detach(player);
DetachAllReceivers();
delete liveSubtitle;
delete dvbSubtitleConverter;
if (this == primaryDevice)
primaryDevice = NULL;
}
bool cDevice::WaitForAllDevicesReady(int Timeout)
{
for (time_t t0 = time(NULL); time(NULL) - t0 < Timeout; ) {
bool ready = true;
for (int i = 0; i < numDevices; i++) {
if (device[i] && !device[i]->Ready()) {
ready = false;
cCondWait::SleepMs(100);
}
}
if (ready)
return true;
}
return false;
}
void cDevice::SetUseDevice(int n)
{
if (n < MAXDEVICES)
useDevice |= (1 << n);
}
int cDevice::NextCardIndex(int n)
{
if (n > 0) {
nextCardIndex += n;
if (nextCardIndex >= MAXDEVICES)
esyslog("ERROR: nextCardIndex too big (%d)", nextCardIndex);
}
else if (n < 0)
esyslog("ERROR: invalid value in nextCardIndex(%d)", n);
return nextCardIndex;
}
int cDevice::DeviceNumber(void) const
{
for (int i = 0; i < numDevices; i++) {
if (device[i] == this)
return i;
}
return -1;
}
cString cDevice::DeviceType(void) const
{
return "";
}
cString cDevice::DeviceName(void) const
{
return "";
}
void cDevice::MakePrimaryDevice(bool On)
{
if (!On) {
DELETENULL(liveSubtitle);
DELETENULL(dvbSubtitleConverter);
}
}
bool cDevice::SetPrimaryDevice(int n)
{
n--;
if (0 <= n && n < numDevices && device[n]) {
isyslog("setting primary device to %d", n + 1);
if (primaryDevice)
primaryDevice->MakePrimaryDevice(false);
primaryDevice = device[n];
primaryDevice->MakePrimaryDevice(true);
primaryDevice->SetVideoFormat(Setup.VideoFormat);
primaryDevice->SetVolumeDevice(Setup.CurrentVolume);
return true;
}
esyslog("ERROR: invalid primary device number: %d", n + 1);
return false;
}
bool cDevice::HasDecoder(void) const
{
return false;
}
cSpuDecoder *cDevice::GetSpuDecoder(void)
{
return NULL;
}
cDevice *cDevice::ActualDevice(void)
{
cDevice *d = cTransferControl::ReceiverDevice();
if (!d)
d = PrimaryDevice();
return d;
}
cDevice *cDevice::GetDevice(int Index)
{
return (0 <= Index && Index < numDevices) ? device[Index] : NULL;
}
static int GetClippedNumProvidedSystems(int AvailableBits, cDevice *Device)
{
int MaxNumProvidedSystems = (1 << AvailableBits) - 1;
int NumProvidedSystems = Device->NumProvidedSystems();
if (NumProvidedSystems > MaxNumProvidedSystems) {
esyslog("ERROR: device %d supports %d modulation systems but cDevice::GetDevice() currently only supports %d delivery systems which should be fixed", Device->CardIndex() + 1, NumProvidedSystems, MaxNumProvidedSystems);
NumProvidedSystems = MaxNumProvidedSystems;
}
else if (NumProvidedSystems <= 0) {
esyslog("ERROR: device %d reported an invalid number (%d) of supported delivery systems - assuming 1", Device->CardIndex() + 1, NumProvidedSystems);
NumProvidedSystems = 1;
}
return NumProvidedSystems;
}
cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView, bool Query)
{
// Collect the current priorities of all CAM slots that can decrypt the channel:
int NumCamSlots = CamSlots.Count();
int SlotPriority[NumCamSlots];
int NumUsableSlots = 0;
bool InternalCamNeeded = false;
if (Channel->Ca() >= CA_ENCRYPTED_MIN) {
for (cCamSlot *CamSlot = CamSlots.First(); CamSlot; CamSlot = CamSlots.Next(CamSlot)) {
SlotPriority[CamSlot->Index()] = MAXPRIORITY + 1; // assumes it can't be used
if (CamSlot->ModuleStatus() == msReady) {
if (CamSlot->ProvidesCa(Channel->Caids())) {
if (!ChannelCamRelations.CamChecked(Channel->GetChannelID(), CamSlot->SlotNumber())) {
SlotPriority[CamSlot->Index()] = CamSlot->Priority();
NumUsableSlots++;
}
}
}
}
if (!NumUsableSlots)
InternalCamNeeded = true; // no CAM is able to decrypt this channel
}
bool NeedsDetachReceivers = false;
cDevice *d = NULL;
cCamSlot *s = NULL;
uint32_t Impact = 0xFFFFFFFF; // we're looking for a device with the least impact
for (int j = 0; j < NumCamSlots || !NumUsableSlots; j++) {
if (NumUsableSlots && SlotPriority[j] > MAXPRIORITY)
continue; // there is no CAM available in this slot
for (int i = 0; i < numDevices; i++) {
if (Channel->Ca() && Channel->Ca() <= CA_DVB_MAX && Channel->Ca() != device[i]->CardIndex() + 1)
continue; // a specific card was requested, but not this one
bool HasInternalCam = device[i]->HasInternalCam();
if (InternalCamNeeded && !HasInternalCam)
continue; // no CAM is able to decrypt this channel and the device uses vdr handled CAMs
if (NumUsableSlots && !HasInternalCam && !CamSlots.Get(j)->Assign(device[i], true))
continue; // CAM slot can't be used with this device
bool ndr;
if (device[i]->ProvidesChannel(Channel, Priority, &ndr)) { // this device is basically able to do the job
if (NumUsableSlots && !HasInternalCam && device[i]->CamSlot() && device[i]->CamSlot() != CamSlots.Get(j))
ndr = true; // using a different CAM slot requires detaching receivers
// Put together an integer number that reflects the "impact" using
// this device would have on the overall system. Each condition is represented
// by one bit in the number (or several bits, if the condition is actually
// a numeric value). The sequence in which the conditions are listed corresponds
// to their individual severity, where the one listed first will make the most
// difference, because it results in the most significant bit of the result.
uint32_t imp = 0;
imp <<= 1; imp |= LiveView ? !device[i]->IsPrimaryDevice() || ndr : 0; // prefer the primary device for live viewing if we don't need to detach existing receivers
imp <<= 1; imp |= !device[i]->Receiving() && (device[i] != cTransferControl::ReceiverDevice() || device[i]->IsPrimaryDevice()) || ndr; // use receiving devices if we don't need to detach existing receivers, but avoid primary device in local transfer mode
imp <<= 1; imp |= device[i]->Receiving(); // avoid devices that are receiving
imp <<= 4; imp |= GetClippedNumProvidedSystems(4, device[i]) - 1; // avoid cards which support multiple delivery systems
imp <<= 1; imp |= device[i] == cTransferControl::ReceiverDevice(); // avoid the Transfer Mode receiver device
imp <<= 8; imp |= device[i]->Priority() - IDLEPRIORITY; // use the device with the lowest priority (- IDLEPRIORITY to assure that values -100..99 can be used)
imp <<= 8; imp |= ((NumUsableSlots && !HasInternalCam) ? SlotPriority[j] : IDLEPRIORITY) - IDLEPRIORITY;// use the CAM slot with the lowest priority (- IDLEPRIORITY to assure that values -100..99 can be used)
imp <<= 1; imp |= ndr; // avoid devices if we need to detach existing receivers
imp <<= 1; imp |= (NumUsableSlots || InternalCamNeeded) ? 0 : device[i]->HasCi(); // avoid cards with Common Interface for FTA channels
imp <<= 1; imp |= device[i]->AvoidRecording(); // avoid SD full featured cards
imp <<= 1; imp |= (NumUsableSlots && !HasInternalCam) ? !ChannelCamRelations.CamDecrypt(Channel->GetChannelID(), j + 1) : 0; // prefer CAMs that are known to decrypt this channel
imp <<= 1; imp |= device[i]->IsPrimaryDevice(); // avoid the primary device
if (imp < Impact) {
// This device has less impact than any previous one, so we take it.
Impact = imp;
d = device[i];
NeedsDetachReceivers = ndr;
if (NumUsableSlots && !HasInternalCam)
s = CamSlots.Get(j);
}
}
}
if (!NumUsableSlots)
break; // no CAM necessary, so just one loop over the devices
}
if (d && !Query) {
if (NeedsDetachReceivers)
d->DetachAllReceivers();
if (s) {
if (s->Device() != d) {
if (s->Device())
s->Device()->DetachAllReceivers();
if (d->CamSlot())
d->CamSlot()->Assign(NULL);
s->Assign(d);
}
}
else if (d->CamSlot() && !d->CamSlot()->IsDecrypting())
d->CamSlot()->Assign(NULL);
}
return d;
}
cDevice *cDevice::GetDeviceForTransponder(const cChannel *Channel, int Priority)
{
cDevice *Device = NULL;
for (int i = 0; i < cDevice::NumDevices(); i++) {
if (cDevice *d = cDevice::GetDevice(i)) {
if (d->IsTunedToTransponder(Channel))
return d; // if any device is tuned to the transponder, we're done
if (d->ProvidesTransponder(Channel)) {
if (d->MaySwitchTransponder(Channel))
Device = d; // this device may switch to the transponder without disturbing any receiver or live view
else if (!d->Occupied() && d->MaySwitchTransponder(Channel)) { // MaySwitchTransponder() implicitly calls Occupied()
if (d->Priority() < Priority && (!Device || d->Priority() < Device->Priority()))
Device = d; // use this one only if no other with less impact can be found
}
}
}
}
return Device;
}
bool cDevice::HasCi(void)
{
return false;
}
void cDevice::SetCamSlot(cCamSlot *CamSlot)
{
camSlot = CamSlot;
}
void cDevice::Shutdown(void)
{
deviceHooks.Clear();
for (int i = 0; i < numDevices; i++) {
delete device[i];
device[i] = NULL;
}
}
uchar *cDevice::GrabImage(int &Size, bool Jpeg, int Quality, int SizeX, int SizeY)
{
return NULL;
}
bool cDevice::GrabImageFile(const char *FileName, bool Jpeg, int Quality, int SizeX, int SizeY)
{
int result = 0;
int fd = open(FileName, O_WRONLY | O_CREAT | O_NOFOLLOW | O_TRUNC, DEFFILEMODE);
if (fd >= 0) {
int ImageSize;
uchar *Image = GrabImage(ImageSize, Jpeg, Quality, SizeX, SizeY);
if (Image) {
if (safe_write(fd, Image, ImageSize) == ImageSize)
isyslog("grabbed image to %s", FileName);
else {
LOG_ERROR_STR(FileName);
result |= 1;
}
free(Image);
}
else
result |= 1;
close(fd);
}
else {
LOG_ERROR_STR(FileName);
result |= 1;
}
return result == 0;
}
void cDevice::SetVideoDisplayFormat(eVideoDisplayFormat VideoDisplayFormat)
{
cSpuDecoder *spuDecoder = GetSpuDecoder();
if (spuDecoder) {
if (Setup.VideoFormat)
spuDecoder->setScaleMode(cSpuDecoder::eSpuNormal);
else {
switch (VideoDisplayFormat) {
case vdfPanAndScan:
spuDecoder->setScaleMode(cSpuDecoder::eSpuPanAndScan);
break;
case vdfLetterBox:
spuDecoder->setScaleMode(cSpuDecoder::eSpuLetterBox);
break;
case vdfCenterCutOut:
spuDecoder->setScaleMode(cSpuDecoder::eSpuNormal);
break;
default: esyslog("ERROR: invalid value for VideoDisplayFormat '%d'", VideoDisplayFormat);
}
}
}
}
void cDevice::SetVideoFormat(bool VideoFormat16_9)
{
}
eVideoSystem cDevice::GetVideoSystem(void)
{
return vsPAL;
}
void cDevice::GetVideoSize(int &Width, int &Height, double &VideoAspect)
{
Width = 0;
Height = 0;
VideoAspect = 1.0;
}
void cDevice::GetOsdSize(int &Width, int &Height, double &PixelAspect)
{
Width = 720;
Height = 480;
PixelAspect = 1.0;
}
//#define PRINTPIDS(s) { char b[500]; char *q = b; q += sprintf(q, "%d %s ", CardIndex(), s); for (int i = 0; i < MAXPIDHANDLES; i++) q += sprintf(q, " %s%4d %d", i == ptOther ? "* " : "", pidHandles[i].pid, pidHandles[i].used); dsyslog("%s", b); }
#define PRINTPIDS(s)
bool cDevice::HasPid(int Pid) const
{
for (int i = 0; i < MAXPIDHANDLES; i++) {
if (pidHandles[i].pid == Pid)
return true;
}
return false;
}
bool cDevice::AddPid(int Pid, ePidType PidType, int StreamType)
{
if (Pid || PidType == ptPcr) {
int n = -1;
int a = -1;
if (PidType != ptPcr) { // PPID always has to be explicit
for (int i = 0; i < MAXPIDHANDLES; i++) {
if (i != ptPcr) {
if (pidHandles[i].pid == Pid)
n = i;
else if (a < 0 && i >= ptOther && !pidHandles[i].used)
a = i;
}
}
}
if (n >= 0) {
// The Pid is already in use
if (++pidHandles[n].used == 2 && n <= ptTeletext) {
// It's a special PID that may have to be switched into "tap" mode
PRINTPIDS("A");
if (!SetPid(&pidHandles[n], n, true)) {
esyslog("ERROR: can't set PID %d on device %d", Pid, CardIndex() + 1);
if (PidType <= ptTeletext)
DetachAll(Pid);
DelPid(Pid, PidType);
return false;
}
if (camSlot)
camSlot->SetPid(Pid, true);
}
PRINTPIDS("a");
return true;
}
else if (PidType < ptOther) {
// The Pid is not yet in use and it is a special one
n = PidType;
}
else if (a >= 0) {
// The Pid is not yet in use and we have a free slot
n = a;
}
else {
esyslog("ERROR: no free slot for PID %d on device %d", Pid, CardIndex() + 1);
return false;
}
if (n >= 0) {
pidHandles[n].pid = Pid;
pidHandles[n].streamType = StreamType;
pidHandles[n].used = 1;
PRINTPIDS("C");
if (!SetPid(&pidHandles[n], n, true)) {
esyslog("ERROR: can't set PID %d on device %d", Pid, CardIndex() + 1);
if (PidType <= ptTeletext)
DetachAll(Pid);
DelPid(Pid, PidType);
return false;
}
if (camSlot)
camSlot->SetPid(Pid, true);
}
}
return true;
}
void cDevice::DelPid(int Pid, ePidType PidType)
{
if (Pid || PidType == ptPcr) {
int n = -1;
if (PidType == ptPcr)
n = PidType; // PPID always has to be explicit
else {
for (int i = 0; i < MAXPIDHANDLES; i++) {
if (pidHandles[i].pid == Pid) {
n = i;
break;
}
}
}
if (n >= 0 && pidHandles[n].used) {
PRINTPIDS("D");
if (--pidHandles[n].used < 2) {
SetPid(&pidHandles[n], n, false);
if (pidHandles[n].used == 0) {
pidHandles[n].handle = -1;
pidHandles[n].pid = 0;
if (camSlot)
camSlot->SetPid(Pid, false);
}
}
PRINTPIDS("E");
}
}
}
bool cDevice::SetPid(cPidHandle *Handle, int Type, bool On)
{
return false;
}
void cDevice::DelLivePids(void)
{
for (int i = ptAudio; i < ptOther; i++) {
if (pidHandles[i].pid)
DelPid(pidHandles[i].pid, ePidType(i));
}
}
void cDevice::StartSectionHandler(void)
{
if (!sectionHandler) {
sectionHandler = new cSectionHandler(this);
AttachFilter(eitFilter = new cEitFilter);
AttachFilter(patFilter = new cPatFilter);
AttachFilter(sdtFilter = new cSdtFilter(patFilter));
AttachFilter(nitFilter = new cNitFilter);
}
}
void cDevice::StopSectionHandler(void)
{
if (sectionHandler) {
delete nitFilter;
delete sdtFilter;
delete patFilter;
delete eitFilter;
delete sectionHandler;
nitFilter = NULL;
sdtFilter = NULL;
patFilter = NULL;
eitFilter = NULL;
sectionHandler = NULL;
}
}
int cDevice::OpenFilter(u_short Pid, u_char Tid, u_char Mask)
{
return -1;
}
int cDevice::ReadFilter(int Handle, void *Buffer, size_t Length)
{
return safe_read(Handle, Buffer, Length);
}
void cDevice::CloseFilter(int Handle)
{
close(Handle);
}
void cDevice::AttachFilter(cFilter *Filter)
{
if (sectionHandler)
sectionHandler->Attach(Filter);
}
void cDevice::Detach(cFilter *Filter)
{
if (sectionHandler)
sectionHandler->Detach(Filter);
}
bool cDevice::ProvidesSource(int Source) const
{
return false;
}
bool cDevice::DeviceHooksProvidesTransponder(const cChannel *Channel) const
{
cDeviceHook *Hook = deviceHooks.First();
while (Hook) {
if (!Hook->DeviceProvidesTransponder(this, Channel))
return false;
Hook = deviceHooks.Next(Hook);
}
return true;
}
bool cDevice::ProvidesTransponder(const cChannel *Channel) const
{
return false;
}
bool cDevice::ProvidesTransponderExclusively(const cChannel *Channel) const
{
for (int i = 0; i < numDevices; i++) {
if (device[i] && device[i] != this && device[i]->ProvidesTransponder(Channel))
return false;
}
return true;
}
bool cDevice::ProvidesChannel(const cChannel *Channel, int Priority, bool *NeedsDetachReceivers) const
{
return false;
}
bool cDevice::ProvidesEIT(void) const
{
return false;
}
int cDevice::NumProvidedSystems(void) const
{
return 0;
}
const cPositioner *cDevice::Positioner(void) const
{
return NULL;
}
int cDevice::SignalStrength(void) const
{
return -1;
}
int cDevice::SignalQuality(void) const
{
return -1;
}
const cChannel *cDevice::GetCurrentlyTunedTransponder(void) const
{
return NULL;
}
bool cDevice::IsTunedToTransponder(const cChannel *Channel) const
{
return false;
}
bool cDevice::MaySwitchTransponder(const cChannel *Channel) const
{
return time(NULL) > occupiedTimeout && !Receiving() && !(pidHandles[ptAudio].pid || pidHandles[ptVideo].pid || pidHandles[ptDolby].pid);
}
bool cDevice::SwitchChannel(const cChannel *Channel, bool LiveView)
{
if (LiveView) {
isyslog("switching to channel %d", Channel->Number());
cControl::Shutdown(); // prevents old channel from being shown too long if GetDevice() takes longer
}
for (int i = 3; i--;) {
switch (SetChannel(Channel, LiveView)) {
case scrOk: return true;
case scrNotAvailable: Skins.Message(mtInfo, tr("Channel not available!"));
return false;
case scrNoTransfer: Skins.Message(mtError, tr("Can't start Transfer Mode!"));
return false;
case scrFailed: break; // loop will retry
default: esyslog("ERROR: invalid return value from SetChannel");
}
esyslog("retrying");
}
return false;
}
bool cDevice::SwitchChannel(int Direction)
{
bool result = false;
Direction = sgn(Direction);
if (Direction) {
cControl::Shutdown(); // prevents old channel from being shown too long if GetDevice() takes longer
int n = CurrentChannel() + Direction;
int first = n;
cChannel *channel;
while ((channel = Channels.GetByNumber(n, Direction)) != NULL) {
// try only channels which are currently available
if (GetDevice(channel, LIVEPRIORITY, true, true))
break;
n = channel->Number() + Direction;
}
if (channel) {
int d = n - first;
if (abs(d) == 1)
dsyslog("skipped channel %d", first);
else if (d)
dsyslog("skipped channels %d..%d", first, n - sgn(d));
if (PrimaryDevice()->SwitchChannel(channel, true))
result = true;
}
else if (n != first)
Skins.Message(mtError, tr("Channel not available!"));
}
return result;
}
eSetChannelResult cDevice::SetChannel(const cChannel *Channel, bool LiveView)
{
cStatus::MsgChannelSwitch(this, 0, LiveView);
if (LiveView) {
StopReplay();
DELETENULL(liveSubtitle);
DELETENULL(dvbSubtitleConverter);
}
cDevice *Device = (LiveView && IsPrimaryDevice()) ? GetDevice(Channel, LIVEPRIORITY, true) : this;
bool NeedsTransferMode = Device != this;
eSetChannelResult Result = scrOk;
// If this DVB card can't receive this channel, let's see if we can
// use the card that actually can receive it and transfer data from there:
if (NeedsTransferMode) {
if (Device && CanReplay()) {
if (Device->SetChannel(Channel, false) == scrOk) // calling SetChannel() directly, not SwitchChannel()!
cControl::Launch(new cTransferControl(Device, Channel));
else
Result = scrNoTransfer;
}
else
Result = scrNotAvailable;
}
else {
Channels.Lock(false);
// Stop section handling:
if (sectionHandler) {
sectionHandler->SetStatus(false);
sectionHandler->SetChannel(NULL);
}
// Tell the camSlot about the channel switch and add all PIDs of this
// channel to it, for possible later decryption:
if (camSlot)
camSlot->AddChannel(Channel);
if (SetChannelDevice(Channel, LiveView)) {
// Start section handling:
if (sectionHandler) {
sectionHandler->SetChannel(Channel);
sectionHandler->SetStatus(true);
}
// Start decrypting any PIDs that might have been set in SetChannelDevice():
if (camSlot)
camSlot->StartDecrypting();
}
else
Result = scrFailed;
Channels.Unlock();
}
if (Result == scrOk) {
if (LiveView && IsPrimaryDevice()) {
currentChannel = Channel->Number();
// Set the available audio tracks:
ClrAvailableTracks();
for (int i = 0; i < MAXAPIDS; i++)
SetAvailableTrack(ttAudio, i, Channel->Apid(i), Channel->Alang(i));
if (Setup.UseDolbyDigital) {
for (int i = 0; i < MAXDPIDS; i++)
SetAvailableTrack(ttDolby, i, Channel->Dpid(i), Channel->Dlang(i));
}
for (int i = 0; i < MAXSPIDS; i++)
SetAvailableTrack(ttSubtitle, i, Channel->Spid(i), Channel->Slang(i));
if (!NeedsTransferMode)
EnsureAudioTrack(true);
EnsureSubtitleTrack();
}
cStatus::MsgChannelSwitch(this, Channel->Number(), LiveView); // only report status if channel switch successful
}
return Result;
}
void cDevice::ForceTransferMode(void)
{
if (!cTransferControl::ReceiverDevice()) {
cChannel *Channel = Channels.GetByNumber(CurrentChannel());
if (Channel)
SetChannelDevice(Channel, false); // this implicitly starts Transfer Mode
}
}
int cDevice::Occupied(void) const
{
int Seconds = occupiedTimeout - time(NULL);
return Seconds > 0 ? Seconds : 0;
}
void cDevice::SetOccupied(int Seconds)
{
if (Seconds >= 0)
occupiedTimeout = time(NULL) + min(Seconds, MAXOCCUPIEDTIMEOUT);
}
bool cDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
{
return false;
}
bool cDevice::HasLock(int TimeoutMs) const
{
return true;
}
bool cDevice::HasProgramme(void) const
{
return Replaying() || pidHandles[ptAudio].pid || pidHandles[ptVideo].pid;
}
int cDevice::GetAudioChannelDevice(void)
{
return 0;
}
void cDevice::SetAudioChannelDevice(int AudioChannel)
{
}
void cDevice::SetVolumeDevice(int Volume)
{
}
void cDevice::SetDigitalAudioDevice(bool On)
{
}
void cDevice::SetAudioTrackDevice(eTrackType Type)
{
}
void cDevice::SetSubtitleTrackDevice(eTrackType Type)
{
}
bool cDevice::ToggleMute(void)
{
int OldVolume = volume;
mute = !mute;
//XXX why is it necessary to use different sequences???
if (mute) {
SetVolume(0, true);
Audios.MuteAudio(mute); // Mute external audio after analog audio
}
else {
Audios.MuteAudio(mute); // Enable external audio before analog audio
SetVolume(OldVolume, true);
}
volume = OldVolume;
return mute;
}
int cDevice::GetAudioChannel(void)
{
int c = GetAudioChannelDevice();
return (0 <= c && c <= 2) ? c : 0;
}
void cDevice::SetAudioChannel(int AudioChannel)
{
if (0 <= AudioChannel && AudioChannel <= 2)
SetAudioChannelDevice(AudioChannel);
}
void cDevice::SetVolume(int Volume, bool Absolute)
{
int OldVolume = volume;
volume = constrain(Absolute ? Volume : volume + Volume, 0, MAXVOLUME);
SetVolumeDevice(volume);
Absolute |= mute;
cStatus::MsgSetVolume(Absolute ? volume : volume - OldVolume, Absolute);
if (volume > 0) {
mute = false;
Audios.MuteAudio(mute);
}
}
void cDevice::ClrAvailableTracks(bool DescriptionsOnly, bool IdsOnly)
{
if (keepTracks)
return;
if (DescriptionsOnly) {
for (int i = ttNone; i < ttMaxTrackTypes; i++)
*availableTracks[i].description = 0;
}
else {
if (IdsOnly) {
for (int i = ttNone; i < ttMaxTrackTypes; i++)
availableTracks[i].id = 0;
}
else
memset(availableTracks, 0, sizeof(availableTracks));
pre_1_3_19_PrivateStream = 0;
SetAudioChannel(0); // fall back to stereo
currentAudioTrackMissingCount = 0;
currentAudioTrack = ttNone;
currentSubtitleTrack = ttNone;
}
}
bool cDevice::SetAvailableTrack(eTrackType Type, int Index, uint16_t Id, const char *Language, const char *Description)
{
eTrackType t = eTrackType(Type + Index);
if (Type == ttAudio && IS_AUDIO_TRACK(t) ||
Type == ttDolby && IS_DOLBY_TRACK(t) ||
Type == ttSubtitle && IS_SUBTITLE_TRACK(t)) {
if (Language)
strn0cpy(availableTracks[t].language, Language, sizeof(availableTracks[t].language));
if (Description)
Utf8Strn0Cpy(availableTracks[t].description, Description, sizeof(availableTracks[t].description));
if (Id) {
availableTracks[t].id = Id; // setting 'id' last to avoid the need for extensive locking
if (Type == ttAudio || Type == ttDolby) {
int numAudioTracks = NumAudioTracks();
if (!availableTracks[currentAudioTrack].id && numAudioTracks && currentAudioTrackMissingCount++ > numAudioTracks * 10)
EnsureAudioTrack();
else if (t == currentAudioTrack)
currentAudioTrackMissingCount = 0;
}
else if (Type == ttSubtitle && autoSelectPreferredSubtitleLanguage)
EnsureSubtitleTrack();
}
return true;
}
else
esyslog("ERROR: SetAvailableTrack called with invalid Type/Index (%d/%d)", Type, Index);
return false;
}
const tTrackId *cDevice::GetTrack(eTrackType Type)
{
return (ttNone < Type && Type < ttMaxTrackTypes) ? &availableTracks[Type] : NULL;
}
int cDevice::NumTracks(eTrackType FirstTrack, eTrackType LastTrack) const
{
int n = 0;
for (int i = FirstTrack; i <= LastTrack; i++) {
if (availableTracks[i].id)
n++;
}
return n;
}
int cDevice::NumAudioTracks(void) const
{
return NumTracks(ttAudioFirst, ttDolbyLast);