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-rw-r--r--device.h51
1 files changed, 28 insertions, 23 deletions
diff --git a/device.h b/device.h
index dced092e..63af410b 100644
--- a/device.h
+++ b/device.h
@@ -4,7 +4,7 @@
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
- * $Id: device.h 1.79 2006/06/15 09:32:48 kls Exp $
+ * $Id: device.h 1.80 2007/01/07 14:38:00 kls Exp $
*/
#ifndef __DEVICE_H
@@ -128,12 +128,21 @@ public:
///< Gets the device with the given Index.
///< \param Index must be in the range 0..numDevices-1.
///< \return A pointer to the device, or NULL if the Index was invalid.
- static cDevice *GetDevice(const cChannel *Channel, int Priority = -1, bool *NeedsDetachReceivers = NULL);
+ static cDevice *GetDevice(const cChannel *Channel, int Priority, bool LiveView);
///< Returns a device that is able to receive the given Channel at the
///< given Priority, with the least impact on active recordings and
- ///< live viewing.
- ///< See ProvidesChannel() for more information on how
- ///< priorities are handled, and the meaning of NeedsDetachReceivers.
+ ///< live viewing. The LiveView parameter tells whether the device will
+ ///< be used for live viewing or a recording.
+ ///< If the Channel is encrypted, a CAM slot that claims to be able to
+ ///< decrypt the channel is automatically selected and assigned to the
+ ///< returned device. Whether or not this combination of device and CAM
+ ///< slot is actually able to decrypt the channel can only be determined
+ ///< by checking the "scrambling control" bits of the received TS packets.
+ ///< The Action() function automatically does this and takes care that
+ ///< after detaching any receivers because the channel can't be decrypted,
+ ///< this device/CAM combination will be skipped in the next call to
+ ///< GetDevice().
+ ///< See also ProvidesChannel().
static void Shutdown(void);
///< Closes down all devices.
///< Must be called at the end of the program.
@@ -171,16 +180,6 @@ public:
///< Returns the card index of this device (0 ... MAXDEVICES - 1).
int DeviceNumber(void) const;
///< Returns the number of this device (0 ... numDevices).
- virtual int ProvidesCa(const cChannel *Channel) const;
- ///< Checks whether this device provides the conditional access
- ///< facilities to decrypt the given Channel.
- ///< Returns 0 if the Channel can't be decrypted, 1 if this is a
- ///< Free To Air channel or only exactly this device can decrypt it,
- ///< and > 1 if this device can decrypt the Channel.
- ///< If the result is greater than 1 and the device has more than one
- ///< CAM, the value will be increased by the number of CAMs, which
- ///< allows to select the device with the smallest number of CAMs
- ///< in order to preserve resources for other recordings.
virtual bool HasDecoder(void) const;
///< Tells whether this device has an MPEG decoder.
@@ -199,7 +198,9 @@ public:
virtual bool ProvidesSource(int Source) const;
///< Returns true if this device can provide the given source.
virtual bool ProvidesTransponder(const cChannel *Channel) const;
- ///< XXX -> PLUGINS.html!
+ ///< Returns true if this device can provide the transponder of the
+ ///< given Channel (which implies that it can provide the Channel's
+ ///< source).
virtual bool ProvidesTransponderExclusively(const cChannel *Channel) const;
///< Returns true if this is the only device that is able to provide
///< the given channel's transponder.
@@ -246,7 +247,7 @@ public:
///< channel number while replaying.
void ForceTransferMode(void);
///< Forces the device into transfermode for the current channel.
- virtual bool HasLock(int TimeoutMs = 0);//XXX PLUGINS.html
+ virtual bool HasLock(int TimeoutMs = 0);
///< Returns true if the device has a lock on the requested transponder.
///< Default is true, a specific device implementation may return false
///< to indicate that it is not ready yet.
@@ -309,10 +310,15 @@ public:
// Common Interface facilities:
-protected:
- cCiHandler *ciHandler;
+private:
+ time_t startScrambleDetection;
+ cCamSlot *camSlot;
public:
- cCiHandler *CiHandler(void) { return ciHandler; }
+ void SetCamSlot(cCamSlot *CamSlot);
+ ///< Sets the given CamSlot to be used with this device.
+ cCamSlot *CamSlot(void) const { return camSlot; }
+ ///< Returns the CAM slot that is currently used with this device,
+ ///< or NULL if no CAM slot is in use.
// Image Grab facilities
@@ -512,11 +518,12 @@ public:
private:
cMutex mutexReceiver;
cReceiver *receiver[MAXRECEIVERS];
-protected:
+public:
int Priority(void) const;
///< Returns the priority of the current receiving session (0..MAXPRIORITY),
///< or -1 if no receiver is currently active. The primary device will
///< always return at least Setup.PrimaryLimit-1.
+protected:
virtual bool OpenDvr(void);
///< Opens the DVR of this device and prepares it to deliver a Transport
///< Stream for use in a cReceiver.
@@ -530,8 +537,6 @@ protected:
///< false in case of a non recoverable error, otherwise it returns true,
///< even if Data is NULL.
public:
- int Ca(void) const;
- ///< Returns the ca of the current receiving session(s).
bool Receiving(bool CheckAny = false) const;
///< Returns true if we are currently receiving.
bool AttachReceiver(cReceiver *Receiver);