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vdr/device.c
Klaus Schmidinger 1834751c45 Version 1.7.2 
- Added a note about 'Id' being obsolete to the description of cDevice::PlayAudio().
- Switched to the new S2API driver API, which was decided to become the official
  DVB API in the kernel (based on patches from Igor M. Liplianin, Niels Wagenaar
  and Edgar Hucek). VDR now uses the S2API driver from http://linuxtv.org/hg/v4l-dvb.
  In order to correctly detect DVB-S2 capable devices, you need to apply the patch
  from ftp://ftp.cadsoft.de/vdr/Developer/v4l-dvb-s2api-add-s2-capability.diff to
  the driver source, because the S2API doesn't provide a way of telling whether a
  device can handle DVB-S2 transponders.
- The cDvbTuner::IsTunedTo() function now also checks the symbol rate in case of
  DVB-S and DVB-C.
- Improved handling PES video packets with zero length when converting from TS to PES.
  For good replay in Transfer Mode on full featured DVB cards you may want to apply
  the patch from ftp://ftp.cadsoft.de/vdr/Developer/av7110_v4ldvb_api5_audiobuf_test_1.diff
  to the driver (thanks to Oliver Endriss).
2008-12-14 16:54:12 +01:00

1554 lines
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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 2.4 2008/12/13 14:30:28 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)
:cReceiver(tChannelID(), -1, SPid)
{
}
cLiveSubtitle::~cLiveSubtitle()
{
cReceiver::Detach();
}
void cLiveSubtitle::Receive(uchar *Data, int Length)
{
cDevice::PrimaryDevice()->PlayTs(Data, Length);
}
// --- 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::avoidDevice = 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;
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;
}
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;
}
static int GetClippedNumProvidedSystems(int AvailableBits, cDevice *Device)
{
int MaxNumProvidedSystems = 1 << AvailableBits;
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)
{
cDevice *AvoidDevice = avoidDevice;
avoidDevice = NULL;
// 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 (device[i] == AvoidDevice)
continue; // this device shall be temporarily avoided
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 <<= 2; imp |= GetClippedNumProvidedSystems(2, 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 |= 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;
}
int cDevice::NumProvidedSystems(void) const
{
return 0;
}
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 = ttNone;
int LanguagePreference = INT_MAX; // higher than the maximum possible value
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 ActualDevice() != PrimaryDevice();
}
bool cDevice::AttachPlayer(cPlayer *Player)
{
if (CanReplay()) {
if (player)
Detach(player);
DELETENULL(liveSubtitle);
DELETENULL(dvbSubtitleConverter);
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->ConvertFragments(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_PrivateStreamDetected:
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();
pre_1_3_19_PrivateStream = MIN_PRE_1_3_19_PRIVATESTREAM + 1;
goto pre_1_3_19_PrivateStreamDetected;
}
}
}
}
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) {
if (dvbSubtitleConverter)
dvbSubtitleConverter->Reset();
return 0;
}
int i = 0;
while (i <= Length - 6) {
if (Data[i] == 0x00 && Data[i + 1] == 0x00 && Data[i + 2] == 0x01) {
int l = PesLength(Data + i);
if (i + l > Length) {
esyslog("ERROR: incomplete PES packet!");
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)
esyslog("ERROR: leftover PES data!");
return Length;
}
int cDevice::PlayTsVideo(const uchar *Data, int Length)
{
// Video PES has no explicit length, so we can only determine the end of
// a PES packet when the next TS packet that starts a payload comes in:
if (TsPayloadStart(Data)) {
int l;
while (const uchar *p = tsToPesVideo.GetPes(l)) {
int w = PlayVideo(p, l);
if (w < 0)
return w;
}
tsToPesVideo.Reset();
}
tsToPesVideo.PutTs(Data, Length);
return Length;
}
int cDevice::PlayTsAudio(const uchar *Data, int Length)
{
bool PayloadStart = TsPayloadStart(Data);
for (int Pass = 0; Pass < 2; Pass++) {
if (Pass == 0 && !PayloadStart) // if no new payload is started, we can always put the packet into the converter
tsToPesAudio.PutTs(Data, Length);
if (const uchar *p = tsToPesAudio.GetPes(Length)) {
int w = PlayAudio(p, Length, 0);
if (w > 0)
tsToPesAudio.Reset();
else if (PayloadStart)
return w; // must get out the old packet before starting a new one
}
if (Pass == 0 && PayloadStart)
tsToPesAudio.PutTs(Data, Length);
}
return Length;
}
int cDevice::PlayTsSubtitle(const uchar *Data, int Length)
{
if (!dvbSubtitleConverter)
dvbSubtitleConverter = new cDvbSubtitleConverter;
tsToPesSubtitle.PutTs(Data, Length);
if (const uchar *p = tsToPesSubtitle.GetPes(Length)) {
dvbSubtitleConverter->Convert(p, Length);
tsToPesSubtitle.Reset();
}
return Length;
}
//TODO detect and report continuity errors?
int cDevice::PlayTs(const uchar *Data, int Length, bool VideoOnly)
{
if (Length == TS_SIZE) {
if (!TsHasPayload(Data))
return Length; // silently ignore TS packets w/o payload
int PayloadOffset = TsPayloadOffset(Data);
if (PayloadOffset < Length) {
int Pid = TsPid(Data);
if (Pid == 0)
patPmtParser.ParsePat(Data + PayloadOffset, Length - PayloadOffset);
else if (Pid == patPmtParser.PmtPid())
patPmtParser.ParsePmt(Data + PayloadOffset, Length - PayloadOffset);
else if (Pid == patPmtParser.Vpid())
return PlayTsVideo(Data, Length);
else if (Pid == availableTracks[currentAudioTrack].id) {
if (!VideoOnly || HasIBPTrickSpeed()) {
int w = PlayTsAudio(Data, Length);
if (w > 0)
Audios.PlayTsAudio(Data, Length);
return w;
}
}
else if (Pid == availableTracks[currentSubtitleTrack].id) {
if (!VideoOnly || HasIBPTrickSpeed())
return PlayTsSubtitle(Data, Length);
}
return Length;
}
}
return -1;
}
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 as 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 = TsPid(b);
// 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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