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vdr/device.c
Klaus Schmidinger 9279cb21cd Version 1.5.15 
- Updated the Italian OSD texts (thanks to Diego Pierotto).
- Added option -i to the pictures plugin's pic2mpg to ignore unknown file types.
- Revoked the switch to the "multiproto" driver in order to make a new stable
  version before making this big switch and forcing all users to install a
  driver that is not yet in the kernel source. The removed code will reappear
  in version 1.7.0.
  Note that you may need to switch back to an older version of your channels.conf
  file if you have already used version 1.5.14, because it introduced new parameters.
- Added the new command line option --userdump to enable core dumps in case VDR
  is run as root with option -u (thanks to Hans-Werner Hilse).
- Speeded up anti-aliased font rendering by caching the blend indexes (based on
  a suggestion by Martin Wache).
- Fixed setting the OSD area in the pictures plugin.
- Ignoring "repeat" and "release" keys in the time search entry mode during replay,
  to avoid inadvertently leaving it in case a key is pressed too long (suggested
  by Andreas Brugger).
- Improved sending all frames to devices that can handle them in fast forward
  trick speeds, including subtitles (thanks to Timo Eskola).
- The section handler is now stopped before the device is destroyed, to avoid
  accessing file handles after they have become invalid (thanks to Reinhard
  Nissl for reporting an invalid access when ending VDR, and to Deti Fliegl for
  a patch that was used to implement StopSectionHandler()).
- Fixed setting the date in the channel display of the classic and sttng skins,
  to avoid unnecessary OSD access (thanks to Marco Schlüßler).
- The free disk space is now also displayed in the title of the "Recordings"
  menu (suggested by Walter Koch).
- Changed the message "Upcoming VPS recording!" to "Upcoming recording!" because
  it applies to non-VPS recordings as well.
- Fixed a loss of a timer's 'recording' flag after modifying it via MODT.
- Fixed detecting directories in cFileNameList::Load().
- Running the thread that removes deleted recordings at a low priority to (maybe)
  avoid stuttering replay in case the thread is run during replay.
- Limiting the length of the recording name in timers in case VDR is run with
  --vfat, in order to avoid names that are too long for Windows (suggested by Rolf
  Ahrenberg).
- Using cString::sprintf() instead of asprintf() (thanks to Wolfgang Rohdewald
  for pointing out a possible problem if the return value is not checked).
  Plugin authors may want to consider doing the same. For convenience there is now
  an additional version of cString::sprintf() that accepts a va_list parameter.
- When deleting the recording that is currently replayed, the replay is now
  stopped immediately (thanks to Mikko Matilainen for reporting a possible crash
  if the Info key is pressed after deleting the currently replayed recording).
- Updated the Russian OSD texts (thanks to Oleg Roitburd).
- When determining the amount of free disk space, any deleted (but not yet removed)
  recordings on different file systems (that are mounted under the video directory)
  are no longer taken into account.
- When running out of disk space during a recording, only such deleted or old
  recordings are removed, that actually are on the video directory file system(s).
  This prevents VDR from accidentally deleting recordings on other file systems,
  which would not add any free space to the video directory.
- Implemented the cStatus, cDevice and cPlayer functions for setting subtitle tracks
  in plugins (thanks to Petri Hintukainen).
- Added cStatus::TimerChange() to inform plugins about changes to the list of timers
  (based on a patch from Benedikt Elser).
- Added new cStatus functions to the 'status' plugin.
- Added missing #include <limits.h> to epg.c and menuitems.h (thanks to Ville Skyttä).
- The new function cSkin::SetScrollbar() can be implemented by skins to display
  a scrollbar in every list menu. The 'classic' and 'sttng' skins have been
  changed accordingly, as well as the 'skincurses' plugin.
- Introduced 'operator const void * ()' in cString to catch cases where operator*()
  should be used.
- Fixed calculating the scrollbar sizes in the skins.
2008-02-17 18:00:00 +01:00

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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 1.153 2008/02/16 13:52:11 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 ---------------------------------------------------------
#define LIVESUBTITLEBUFSIZE KILOBYTE(100)
class cLiveSubtitle : public cReceiver, public cThread {
private:
cRingBufferLinear *ringBuffer;
cRemux *remux;
protected:
virtual void Activate(bool On);
virtual void Receive(uchar *Data, int Length);
virtual void Action(void);
public:
cLiveSubtitle(int SPid);
virtual ~cLiveSubtitle();
};
cLiveSubtitle::cLiveSubtitle(int SPid)
:cReceiver(tChannelID(), -1, SPid)
,cThread("live subtitle")
{
ringBuffer = new cRingBufferLinear(LIVESUBTITLEBUFSIZE, TS_SIZE * 2, true, "Live Subtitle");
int NoPids = 0;
int SPids[] = { SPid, 0 };
remux = new cRemux(0, &NoPids, &NoPids, SPids);
}
cLiveSubtitle::~cLiveSubtitle()
{
cReceiver::Detach();
delete remux;
delete ringBuffer;
}
void cLiveSubtitle::Activate(bool On)
{
if (On)
Start();
else
Cancel(3);
}
void cLiveSubtitle::Receive(uchar *Data, int Length)
{
if (Running()) {
int p = ringBuffer->Put(Data, Length);
if (p != Length && Running())
ringBuffer->ReportOverflow(Length - p);
}
}
void cLiveSubtitle::Action(void)
{
while (Running()) {
int Count;
uchar *b = ringBuffer->Get(Count);
if (b) {
Count = remux->Put(b, Count);
if (Count)
ringBuffer->Del(Count);
}
b = remux->Get(Count);
if (b) {
Count = cDevice::PrimaryDevice()->PlaySubtitle(b, Count);
remux->Del(Count);
}
}
}
// --- cPesAssembler ---------------------------------------------------------
class cPesAssembler {
private:
uchar *data;
uint32_t tag;
int length;
int size;
bool Realloc(int Size);
public:
cPesAssembler(void);
~cPesAssembler();
int ExpectedLength(void) { return PacketSize(data); }
static int PacketSize(const uchar *data);
int Length(void) { return length; }
const uchar *Data(void) { return data; } // only valid if Length() >= 4
void Reset(void);
void Put(uchar c);
void Put(const uchar *Data, int Length);
bool IsPes(void);
};
cPesAssembler::cPesAssembler(void)
{
data = NULL;
size = 0;
Reset();
}
cPesAssembler::~cPesAssembler()
{
free(data);
}
void cPesAssembler::Reset(void)
{
tag = 0xFFFFFFFF;
length = 0;
}
bool cPesAssembler::Realloc(int Size)
{
if (Size > size) {
size = max(Size, 2048);
data = (uchar *)realloc(data, size);
if (!data) {
esyslog("ERROR: can't allocate memory for PES assembler");
length = 0;
size = 0;
return false;
}
}
return true;
}
void cPesAssembler::Put(uchar c)
{
if (length < 4) {
tag = (tag << 8) | c;
if ((tag & 0xFFFFFF00) == 0x00000100) {
if (Realloc(4)) {
*(uint32_t *)data = htonl(tag);
length = 4;
}
}
else if (length < 3)
length++;
}
else if (Realloc(length + 1))
data[length++] = c;
}
void cPesAssembler::Put(const uchar *Data, int Length)
{
while (length < 4 && Length > 0) {
Put(*Data++);
Length--;
}
if (Length && Realloc(length + Length)) {
memcpy(data + length, Data, Length);
length += Length;
}
}
int cPesAssembler::PacketSize(const uchar *data)
{
// we need atleast 6 bytes of data here !!!
switch (data[3]) {
default:
case 0x00 ... 0xB8: // video stream start codes
case 0xB9: // Program end
case 0xBC: // Programm stream map
case 0xF0 ... 0xFF: // reserved
return 6;
case 0xBA: // Pack header
if ((data[4] & 0xC0) == 0x40) // MPEG2
return 14;
// to be absolutely correct we would have to add the stuffing bytes
// as well, but at this point we only may have 6 bytes of data avail-
// able. So it's up to the higher level to resync...
//return 14 + (data[13] & 0x07); // add stuffing bytes
else // MPEG1
return 12;
case 0xBB: // System header
case 0xBD: // Private stream1
case 0xBE: // Padding stream
case 0xBF: // Private stream2 (navigation data)
case 0xC0 ... 0xCF: // all the rest (the real packets)
case 0xD0 ... 0xDF:
case 0xE0 ... 0xEF:
return 6 + data[4] * 256 + data[5];
}
}
// --- cDevice ---------------------------------------------------------------
// The default priority for non-primary devices:
#define DEFAULTPRIORITY -1
// 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;
cDevice::cDevice(void)
{
cardIndex = nextCardIndex++;
SetDescription("receiver on device %d", CardIndex() + 1);
SetVideoFormat(Setup.VideoFormat);
mute = false;
volume = Setup.CurrentVolume;
sectionHandler = NULL;
eitFilter = NULL;
patFilter = NULL;
sdtFilter = NULL;
nitFilter = NULL;
camSlot = NULL;
startScrambleDetection = 0;
player = NULL;
pesAssembler = new cPesAssembler;
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;
delete pesAssembler;
}
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 IncCardIndex(%d)", n);
return nextCardIndex;
}
int cDevice::DeviceNumber(void) const
{
for (int i = 0; i < numDevices; i++) {
if (device[i] == this)
return i;
}
return -1;
}
void cDevice::MakePrimaryDevice(bool On)
{
}
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;
}
cDevice *cDevice::GetDevice(const cChannel *Channel, int Priority, bool LiveView)
{
// Collect the current priorities of all CAM slots that can decrypt the channel:
int NumCamSlots = CamSlots.Count();
int SlotPriority[NumCamSlots];
int NumUsableSlots = 0;
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)
return NULL; // 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
if (NumUsableSlots && !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 basicly able to do the job
if (NumUsableSlots && 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 <<= 1; imp |= device[i] == cTransferControl::ReceiverDevice(); // avoid the Transfer Mode receiver device
imp <<= 8; imp |= min(max(device[i]->Priority() + MAXPRIORITY, 0), 0xFF); // use the device with the lowest priority (+MAXPRIORITY to assure that values -99..99 can be used)
imp <<= 8; imp |= min(max((NumUsableSlots ? SlotPriority[j] : 0) + MAXPRIORITY, 0), 0xFF); // use the CAM slot with the lowest priority (+MAXPRIORITY to assure that values -99..99 can be used)
imp <<= 1; imp |= ndr; // avoid devices if we need to detach existing receivers
imp <<= 1; imp |= device[i]->IsPrimaryDevice(); // avoid the primary device
imp <<= 1; imp |= NumUsableSlots ? 0 : device[i]->HasCi(); // avoid cards with Common Interface for FTA channels
imp <<= 1; imp |= device[i]->HasDecoder(); // avoid full featured cards
imp <<= 1; imp |= NumUsableSlots ? !ChannelCamRelations.CamDecrypt(Channel->GetChannelID(), j + 1) : 0; // prefer CAMs that are known to decrypt this channel
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)
s = CamSlots.Get(j);
}
}
}
if (!NumUsableSlots)
break; // no CAM necessary, so just one loop over the devices
}
if (d) {
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;
}
bool cDevice::HasCi(void)
{
return false;
}
void cDevice::SetCamSlot(cCamSlot *CamSlot)
{
camSlot = CamSlot;
}
void cDevice::Shutdown(void)
{
primaryDevice = NULL;
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;
}
}
}
}
void cDevice::SetVideoFormat(bool VideoFormat16_9)
{
}
eVideoSystem cDevice::GetVideoSystem(void)
{
return vsPAL;
}
//#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(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)
{
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].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::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;
}
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::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::IsTunedToTransponder(const cChannel *Channel)
{
return false;
}
bool cDevice::MaySwitchTransponder(void)
{
return !Receiving(true) && !(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
}
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, 0, 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)
{
if (LiveView) {
StopReplay();
DELETENULL(liveSubtitle);
DELETENULL(dvbSubtitleConverter);
}
cDevice *Device = (LiveView && IsPrimaryDevice()) ? GetDevice(Channel, 0, LiveView) : 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()) {
cStatus::MsgChannelSwitch(this, 0); // only report status if we are actually going to switch the channel
if (Device->SetChannel(Channel, false) == scrOk) // calling SetChannel() directly, not SwitchChannel()!
cControl::Launch(new cTransferControl(Device, Channel->GetChannelID(), Channel->Vpid(), Channel->Apids(), Channel->Dpids(), Channel->Spids()));
else
Result = scrNoTransfer;
}
else
Result = scrNotAvailable;
}
else {
Channels.Lock(false);
cStatus::MsgChannelSwitch(this, 0); // only report status if we are actually going to switch the channel
// 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()); // only report status if channel switch successfull
}
return Result;
}
void cDevice::ForceTransferMode(void)
{
if (!cTransferControl::ReceiverDevice()) {
cChannel *Channel = Channels.GetByNumber(CurrentChannel());
if (Channel)
SetChannelDevice(Channel, false); // this implicitly starts Transfer Mode
}
}
bool cDevice::SetChannelDevice(const cChannel *Channel, bool LiveView)
{
return false;
}
bool cDevice::HasLock(int TimeoutMs)
{
return true;
}
bool cDevice::HasProgramme(void)
{
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 = min(max(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 (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);
}
int cDevice::NumSubtitleTracks(void) const
{
return NumTracks(ttSubtitleFirst, ttSubtitleLast);
}
bool cDevice::SetCurrentAudioTrack(eTrackType Type)
{
if (ttNone < Type && Type <= ttDolbyLast) {
cMutexLock MutexLock(&mutexCurrentAudioTrack);
if (IS_DOLBY_TRACK(Type))
SetDigitalAudioDevice(true);
currentAudioTrack = Type;
if (player)
player->SetAudioTrack(currentAudioTrack, GetTrack(currentAudioTrack));
else
SetAudioTrackDevice(currentAudioTrack);
if (IS_AUDIO_TRACK(Type))
SetDigitalAudioDevice(false);
return true;
}
return false;
}
bool cDevice::SetCurrentSubtitleTrack(eTrackType Type, bool Manual)
{
if (Type == ttNone || IS_SUBTITLE_TRACK(Type)) {
currentSubtitleTrack = Type;
autoSelectPreferredSubtitleLanguage = !Manual;
if (dvbSubtitleConverter)
dvbSubtitleConverter->Reset();
if (Type == ttNone && dvbSubtitleConverter) {
cMutexLock MutexLock(&mutexCurrentSubtitleTrack);
DELETENULL(dvbSubtitleConverter);
}
DELETENULL(liveSubtitle);
if (player)
player->SetSubtitleTrack(currentSubtitleTrack, GetTrack(currentSubtitleTrack));
else
SetSubtitleTrackDevice(currentSubtitleTrack);
if (currentSubtitleTrack != ttNone && !Replaying() && !Transferring()) {
const tTrackId *TrackId = GetTrack(currentSubtitleTrack);
if (TrackId && TrackId->id) {
liveSubtitle = new cLiveSubtitle(TrackId->id);
AttachReceiver(liveSubtitle);
}
}
return true;
}
return false;
}
void cDevice::EnsureAudioTrack(bool Force)
{
if (Force || !availableTracks[currentAudioTrack].id) {
eTrackType PreferredTrack = ttAudioFirst;
int PreferredAudioChannel = 0;
int LanguagePreference = -1;
int StartCheck = Setup.CurrentDolby ? ttDolbyFirst : ttAudioFirst;
int EndCheck = ttDolbyLast;
for (int i = StartCheck; i <= EndCheck; i++) {
const tTrackId *TrackId = GetTrack(eTrackType(i));
int pos = 0;
if (TrackId && TrackId->id && I18nIsPreferredLanguage(Setup.AudioLanguages, TrackId->language, LanguagePreference, &pos)) {
PreferredTrack = eTrackType(i);
PreferredAudioChannel = pos;
}
if (Setup.CurrentDolby && i == ttDolbyLast) {
i = ttAudioFirst - 1;
EndCheck = ttAudioLast;
}
}
// Make sure we're set to an available audio track:
const tTrackId *Track = GetTrack(GetCurrentAudioTrack());
if (Force || !Track || !Track->id || PreferredTrack != GetCurrentAudioTrack()) {
if (!Force) // only log this for automatic changes
dsyslog("setting audio track to %d (%d)", PreferredTrack, PreferredAudioChannel);
SetCurrentAudioTrack(PreferredTrack);
SetAudioChannel(PreferredAudioChannel);
}
}
}
void cDevice::EnsureSubtitleTrack(void)
{
if (Setup.DisplaySubtitles) {
eTrackType PreferredTrack = ttSubtitleFirst;
int LanguagePreference = -1;
for (int i = ttSubtitleFirst; i <= ttSubtitleLast; i++) {
const tTrackId *TrackId = GetTrack(eTrackType(i));
if (TrackId && TrackId->id && I18nIsPreferredLanguage(Setup.SubtitleLanguages, TrackId->language, LanguagePreference))
PreferredTrack = eTrackType(i);
}
// Make sure we're set to an available subtitle track:
const tTrackId *Track = GetTrack(GetCurrentSubtitleTrack());
if (!Track || !Track->id || PreferredTrack != GetCurrentSubtitleTrack())
SetCurrentSubtitleTrack(PreferredTrack);
}
else
SetCurrentSubtitleTrack(ttNone);
}
bool cDevice::CanReplay(void) const
{
return HasDecoder();
}
bool cDevice::SetPlayMode(ePlayMode PlayMode)
{
return false;
}
int64_t cDevice::GetSTC(void)
{
return -1;
}
void cDevice::TrickSpeed(int Speed)
{
}
void cDevice::Clear(void)
{
Audios.ClearAudio();
if (dvbSubtitleConverter)
dvbSubtitleConverter->Reset();
}
void cDevice::Play(void)
{
Audios.MuteAudio(mute);
}
void cDevice::Freeze(void)
{
Audios.MuteAudio(true);
}
void cDevice::Mute(void)
{
Audios.MuteAudio(true);
}
void cDevice::StillPicture(const uchar *Data, int Length)
{
}
bool cDevice::Replaying(void) const
{
return player != NULL;
}
bool cDevice::Transferring(void) const
{
return dynamic_cast<cTransfer *>(player) != NULL;
}
bool cDevice::AttachPlayer(cPlayer *Player)
{
if (CanReplay()) {
if (player)
Detach(player);
DELETENULL(liveSubtitle);
DELETENULL(dvbSubtitleConverter);
pesAssembler->Reset();
player = Player;
if (!Transferring())
ClrAvailableTracks(false, true);
SetPlayMode(player->playMode);
player->device = this;
player->Activate(true);
return true;
}
return false;
}
void cDevice::Detach(cPlayer *Player)
{
if (Player && player == Player) {
cPlayer *p = player;
player = NULL; // avoids recursive calls to Detach()
p->Activate(false);
p->device = NULL;
cMutexLock MutexLock(&mutexCurrentSubtitleTrack);
delete dvbSubtitleConverter;
dvbSubtitleConverter = NULL;
SetPlayMode(pmNone);
SetVideoDisplayFormat(eVideoDisplayFormat(Setup.VideoDisplayFormat));
Audios.ClearAudio();
}
}
void cDevice::StopReplay(void)
{
if (player) {
Detach(player);
if (IsPrimaryDevice())
cControl::Shutdown();
}
}
bool cDevice::Poll(cPoller &Poller, int TimeoutMs)
{
return false;
}
bool cDevice::Flush(int TimeoutMs)
{
return true;
}
int cDevice::PlayVideo(const uchar *Data, int Length)
{
return -1;
}
int cDevice::PlayAudio(const uchar *Data, int Length, uchar Id)
{
return -1;
}
int cDevice::PlaySubtitle(const uchar *Data, int Length)
{
if (!dvbSubtitleConverter)
dvbSubtitleConverter = new cDvbSubtitleConverter;
return dvbSubtitleConverter->Convert(Data, Length);
}
int cDevice::PlayPesPacket(const uchar *Data, int Length, bool VideoOnly)
{
cMutexLock MutexLock(&mutexCurrentAudioTrack);
bool FirstLoop = true;
uchar c = Data[3];
const uchar *Start = Data;
const uchar *End = Start + Length;
while (Start < End) {
int d = End - Start;
int w = d;
switch (c) {
case 0xBE: // padding stream, needed for MPEG1
case 0xE0 ... 0xEF: // video
w = PlayVideo(Start, d);
break;
case 0xC0 ... 0xDF: // audio
SetAvailableTrack(ttAudio, c - 0xC0, c);
if ((!VideoOnly || HasIBPTrickSpeed()) && c == availableTracks[currentAudioTrack].id) {
w = PlayAudio(Start, d, c);
if (FirstLoop)
Audios.PlayAudio(Data, Length, c);
}
break;
case 0xBD: { // private stream 1
int PayloadOffset = Data[8] + 9;
// Compatibility mode for old subtitles plugin:
if ((Data[7] & 0x01) && (Data[PayloadOffset - 3] & 0x81) == 0x01 && Data[PayloadOffset - 2] == 0x81)
PayloadOffset--;
uchar SubStreamId = Data[PayloadOffset];
uchar SubStreamType = SubStreamId & 0xF0;
uchar SubStreamIndex = SubStreamId & 0x1F;
// Compatibility mode for old VDR recordings, where 0xBD was only AC3:
pre_1_3_19_PrivateStreamDeteced:
if (pre_1_3_19_PrivateStream > MIN_PRE_1_3_19_PRIVATESTREAM) {
SubStreamId = c;
SubStreamType = 0x80;
SubStreamIndex = 0;
}
else if (pre_1_3_19_PrivateStream)
pre_1_3_19_PrivateStream--; // every known PS1 packet counts down towards 0 to recover from glitches...
switch (SubStreamType) {
case 0x20: // SPU
case 0x30: // SPU
SetAvailableTrack(ttSubtitle, SubStreamIndex, SubStreamId);
if ((!VideoOnly || HasIBPTrickSpeed()) && currentSubtitleTrack != ttNone && SubStreamId == availableTracks[currentSubtitleTrack].id)
w = PlaySubtitle(Start, d);
break;
case 0x80: // AC3 & DTS
if (Setup.UseDolbyDigital) {
SetAvailableTrack(ttDolby, SubStreamIndex, SubStreamId);
if ((!VideoOnly || HasIBPTrickSpeed()) && SubStreamId == availableTracks[currentAudioTrack].id) {
w = PlayAudio(Start, d, SubStreamId);
if (FirstLoop)
Audios.PlayAudio(Data, Length, SubStreamId);
}
}
break;
case 0xA0: // LPCM
SetAvailableTrack(ttAudio, SubStreamIndex, SubStreamId);
if ((!VideoOnly || HasIBPTrickSpeed()) && SubStreamId == availableTracks[currentAudioTrack].id) {
w = PlayAudio(Start, d, SubStreamId);
if (FirstLoop)
Audios.PlayAudio(Data, Length, SubStreamId);
}
break;
default:
// Compatibility mode for old VDR recordings, where 0xBD was only AC3:
if (pre_1_3_19_PrivateStream <= MIN_PRE_1_3_19_PRIVATESTREAM) {
dsyslog("unknown PS1 packet, substream id = %02X (counter is at %d)", SubStreamId, pre_1_3_19_PrivateStream);
pre_1_3_19_PrivateStream += 2; // ...and every unknown PS1 packet counts up (the very first one counts twice, but that's ok)
if (pre_1_3_19_PrivateStream > MIN_PRE_1_3_19_PRIVATESTREAM) {
dsyslog("switching to pre 1.3.19 Dolby Digital compatibility mode - substream id = %02X", SubStreamId);
ClrAvailableTracks();
goto pre_1_3_19_PrivateStreamDeteced;
}
}
}
}
break;
default:
;//esyslog("ERROR: unexpected packet id %02X", c);
}
if (w > 0)
Start += w;
else {
if (Start != Data)
esyslog("ERROR: incomplete PES packet write!");
return Start == Data ? w : Start - Data;
}
FirstLoop = false;
}
return Length;
}
int cDevice::PlayPes(const uchar *Data, int Length, bool VideoOnly)
{
if (!Data) {
pesAssembler->Reset();
if (dvbSubtitleConverter)
dvbSubtitleConverter->Reset();
return 0;
}
int Result = 0;
if (pesAssembler->Length()) {
// Make sure we have a complete PES header:
while (pesAssembler->Length() < 6 && Length > 0) {
pesAssembler->Put(*Data++);
Length--;
Result++;
}
if (pesAssembler->Length() < 6)
return Result; // Still no complete PES header - wait for more
int l = pesAssembler->ExpectedLength();
int Rest = min(l - pesAssembler->Length(), Length);
pesAssembler->Put(Data, Rest);
Data += Rest;
Length -= Rest;
Result += Rest;
if (pesAssembler->Length() < l)
return Result; // Still no complete PES packet - wait for more
// Now pesAssembler contains one complete PES packet.
int w = PlayPesPacket(pesAssembler->Data(), pesAssembler->Length(), VideoOnly);
if (w > 0)
pesAssembler->Reset();
return Result > 0 ? Result : w < 0 ? w : 0;
}
int i = 0;
while (i <= Length - 6) {
if (Data[i] == 0x00 && Data[i + 1] == 0x00 && Data[i + 2] == 0x01) {
int l = cPesAssembler::PacketSize(&Data[i]);
if (i + l > Length) {
// Store incomplete PES packet for later completion:
pesAssembler->Put(Data + i, Length - i);
return Length;
}
int w = PlayPesPacket(Data + i, l, VideoOnly);
if (w > 0)
i += l;
else
return i == 0 ? w : i;
}
else
i++;
}
if (i < Length)
pesAssembler->Put(Data + i, Length - i);
return Length;
}
int cDevice::Priority(void) const
{
int priority = IsPrimaryDevice() ? Setup.PrimaryLimit - 1 : DEFAULTPRIORITY;
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i])
priority = max(receiver[i]->priority, priority);
}
return priority;
}
bool cDevice::Ready(void)
{
return true;
}
bool cDevice::Receiving(bool CheckAny) const
{
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i] && (CheckAny || receiver[i]->priority >= 0)) // cReceiver with priority < 0 doesn't count
return true;
}
return false;
}
#define TS_SCRAMBLING_CONTROL 0xC0
#define TS_SCRAMBLING_TIMEOUT 3 // seconds to wait until a TS becomes unscrambled
#define TS_SCRAMBLING_TIME_OK 10 // seconds before a Channel/CAM combination is marked a known to decrypt
void cDevice::Action(void)
{
if (Running() && OpenDvr()) {
while (Running()) {
// Read data from the DVR device:
uchar *b = NULL;
if (GetTSPacket(b)) {
if (b) {
int Pid = (((uint16_t)b[1] & PID_MASK_HI) << 8) | b[2];
// Check whether the TS packets are scrambled:
bool DetachReceivers = false;
bool DescramblingOk = false;
int CamSlotNumber = 0;
if (startScrambleDetection) {
cCamSlot *cs = CamSlot();
CamSlotNumber = cs ? cs->SlotNumber() : 0;
if (CamSlotNumber) {
bool Scrambled = b[3] & TS_SCRAMBLING_CONTROL;
int t = time(NULL) - startScrambleDetection;
if (Scrambled) {
if (t > TS_SCRAMBLING_TIMEOUT)
DetachReceivers = true;
}
else if (t > TS_SCRAMBLING_TIME_OK) {
DescramblingOk = true;
startScrambleDetection = 0;
}
}
}
// Distribute the packet to all attached receivers:
Lock();
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i] && receiver[i]->WantsPid(Pid)) {
if (DetachReceivers) {
ChannelCamRelations.SetChecked(receiver[i]->ChannelID(), CamSlotNumber);
Detach(receiver[i]);
}
else
receiver[i]->Receive(b, TS_SIZE);
if (DescramblingOk)
ChannelCamRelations.SetDecrypt(receiver[i]->ChannelID(), CamSlotNumber);
}
}
Unlock();
}
}
else
break;
}
CloseDvr();
}
}
bool cDevice::OpenDvr(void)
{
return false;
}
void cDevice::CloseDvr(void)
{
}
bool cDevice::GetTSPacket(uchar *&Data)
{
return false;
}
bool cDevice::AttachReceiver(cReceiver *Receiver)
{
if (!Receiver)
return false;
if (Receiver->device == this)
return true;
// activate the following line if you need it - actually the driver should be fixed!
//#define WAIT_FOR_TUNER_LOCK
#ifdef WAIT_FOR_TUNER_LOCK
#define TUNER_LOCK_TIMEOUT 5000 // ms
if (!HasLock(TUNER_LOCK_TIMEOUT)) {
esyslog("ERROR: device %d has no lock, can't attach receiver!", CardIndex() + 1);
return false;
}
#endif
cMutexLock MutexLock(&mutexReceiver);
for (int i = 0; i < MAXRECEIVERS; i++) {
if (!receiver[i]) {
for (int n = 0; n < Receiver->numPids; n++) {
if (!AddPid(Receiver->pids[n])) {
for ( ; n-- > 0; )
DelPid(Receiver->pids[n]);
return false;
}
}
Receiver->Activate(true);
Lock();
Receiver->device = this;
receiver[i] = Receiver;
Unlock();
if (camSlot) {
camSlot->StartDecrypting();
startScrambleDetection = time(NULL);
}
Start();
return true;
}
}
esyslog("ERROR: no free receiver slot!");
return false;
}
void cDevice::Detach(cReceiver *Receiver)
{
if (!Receiver || Receiver->device != this)
return;
bool receiversLeft = false;
cMutexLock MutexLock(&mutexReceiver);
for (int i = 0; i < MAXRECEIVERS; i++) {
if (receiver[i] == Receiver) {
Receiver->Activate(false);
Lock();
receiver[i] = NULL;
Receiver->device = NULL;
Unlock();
for (int n = 0; n < Receiver->numPids; n++)
DelPid(Receiver->pids[n]);
}
else if (receiver[i])
receiversLeft = true;
}
if (camSlot)
camSlot->StartDecrypting();
if (!receiversLeft)
Cancel(-1);
}
void cDevice::DetachAll(int Pid)
{
if (Pid) {
cMutexLock MutexLock(&mutexReceiver);
for (int i = 0; i < MAXRECEIVERS; i++) {
cReceiver *Receiver = receiver[i];
if (Receiver && Receiver->WantsPid(Pid))
Detach(Receiver);
}
}
}
void cDevice::DetachAllReceivers(void)
{
cMutexLock MutexLock(&mutexReceiver);
for (int i = 0; i < MAXRECEIVERS; i++)
Detach(receiver[i]);
}
// --- cTSBuffer -------------------------------------------------------------
cTSBuffer::cTSBuffer(int File, int Size, int CardIndex)
{
SetDescription("TS buffer on device %d", CardIndex);
f = File;
cardIndex = CardIndex;
delivered = false;
ringBuffer = new cRingBufferLinear(Size, TS_SIZE, true, "TS");
ringBuffer->SetTimeouts(100, 100);
Start();
}
cTSBuffer::~cTSBuffer()
{
Cancel(3);
delete ringBuffer;
}
void cTSBuffer::Action(void)
{
if (ringBuffer) {
bool firstRead = true;
cPoller Poller(f);
while (Running()) {
if (firstRead || Poller.Poll(100)) {
firstRead = false;
int r = ringBuffer->Read(f);
if (r < 0 && FATALERRNO) {
if (errno == EOVERFLOW)
esyslog("ERROR: driver buffer overflow on device %d", cardIndex);
else {
LOG_ERROR;
break;
}
}
}
}
}
}
uchar *cTSBuffer::Get(void)
{
int Count = 0;
if (delivered) {
ringBuffer->Del(TS_SIZE);
delivered = false;
}
uchar *p = ringBuffer->Get(Count);
if (p && Count >= TS_SIZE) {
if (*p != TS_SYNC_BYTE) {
for (int i = 1; i < Count; i++) {
if (p[i] == TS_SYNC_BYTE) {
Count = i;
break;
}
}
ringBuffer->Del(Count);
esyslog("ERROR: skipped %d bytes to sync on TS packet on device %d", Count, cardIndex);
return NULL;
}
delivered = true;
return p;
}
return NULL;
}
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