From c6ed4da7a0e8d9bf5664ba2c4282e3c6cb6d7932 Mon Sep 17 00:00:00 2001 From: Klaus Schmidinger Date: Sun, 25 Aug 2002 09:36:09 +0200 Subject: Added cDevice::NewOsd() to allow a derived cDevice class to implement its own OSD capabilities --- CONTRIBUTORS | 2 ++ HISTORY | 4 +++- PLUGINS.html | 43 ++++++++++++++++++++++++++++++------------- device.c | 7 ++++++- device.h | 13 ++++++++++++- dvbdevice.c | 7 ++++++- dvbdevice.h | 7 ++++++- osd.c | 5 ++--- 8 files changed, 67 insertions(+), 21 deletions(-) diff --git a/CONTRIBUTORS b/CONTRIBUTORS index c1536533..a3c12fa3 100644 --- a/CONTRIBUTORS +++ b/CONTRIBUTORS @@ -161,6 +161,8 @@ Andreas Schultz for adding direct access to the index data of cPalette (needed for displaying SPUs) for pointing out a possible race condition in the cDvbPlayer for making the use of malloc/free and new/delete consistent + for adding cDevice::NewOsd() to allow a derived cDevice class to implement its own + OSD capabilities Aaron Holtzman for writing 'ac3dec' diff --git a/HISTORY b/HISTORY index 0c5518d1..3d05a591 100644 --- a/HISTORY +++ b/HISTORY @@ -1416,8 +1416,10 @@ Video Disk Recorder Revision History there is at least one device, either a DVB device found by the core VDR code itself, or a device implemented by a plugin. -2002-08-24: Version 1.1.8 +2002-08-25: Version 1.1.8 - Fixed replaying the last few seconds of a recording. - Added some missing #includes to files in libdtv for gcc 3.2 (thanks to Jürgen Zimmermann). +- Added cDevice::NewOsd() to allow a derived cDevice class to implement its own + OSD capabilities (thanks to Andreas Schultz). diff --git a/PLUGINS.html b/PLUGINS.html index e1f73f55..12a25b24 100644 --- a/PLUGINS.html +++ b/PLUGINS.html @@ -21,18 +21,18 @@ VDR program and present itself to the user. The inside interface provides the plugin code access to VDR's internal data structures and allows it to hook itself into specific areas to perform special actions.

-
  -Important modifications introduced in version 1.1.4 are marked like this. -
-
  +
  Important modifications introduced in version 1.1.5 are marked like this.
-
  +
  Important modifications introduced in version 1.1.6 are marked like this.
-
  +
  Important modifications introduced in version 1.1.7 are marked like this.
+
  +Important modifications introduced in version 1.1.8 are marked like this. +

Part I - The Outside Interface

@@ -907,7 +907,6 @@ See the file status.h for detailed information on which status monitor member functions are available in cStatus. You only need to implement the functions you actually want to use. -
 

Players

Play it again, Sam!

@@ -958,7 +957,7 @@ stream. There are no prerequisites regarding the length or alignment of an individual block of data. The sum of all blocks must simply result in the desired video data stream, and it must be delivered fast enough so that the DVB device doesn't run out of data. -
  +
  To avoid busy loops the player should call its member function 



@@ -1065,9 +1064,8 @@ Of course, these are only suggestions which should make it easier for VDR users
 enjoy additional players, since they will be able to control them with actions
 that they already know. If you absolutely want to do things differently, just go
 ahead - it's your show...
-
-
  +
 

Receivers

Tapping into the stream...

@@ -1123,7 +1121,7 @@ If the cReceiver isn't needed any more, it may simply be deleted and will automatically detach itself from the cDevice.

-
  +
 

The On Screen Display

Express yourself

@@ -1155,7 +1153,7 @@ of these functions, and VDR/osd.c to see how VDR opens the OSD and sets up its windows and color depths).

-
  +
 

Devices

Expanding the possibilities

@@ -1228,7 +1226,7 @@ to indicate this to VDR.

The functions to implement replaying capabilites are -
  +
  



 virtual bool HasDecoder(void) const;
 virtual bool SetPlayMode(ePlayMode PlayMode);
@@ -1252,6 +1250,25 @@ virtual void SetVideoFormat(bool VideoFormat16_9);
 virtual void SetVolumeDevice(int Volume);

+
  +

+On Screen Display +

+If your device provides On Screen Display (OSD) capabilities (which every device +that is supposed to be used as a primary device should do), it can implement +the function + +



+virtual cOsdBase *NewOsd(int x, int y);
+

+ +which must return a newly created object of a derived cOsdBase class that +implements the functions necessary to display OSD information on your device. +The caller of this function will delete the object as soon as it is no longer +needed. +

+ +

Initializing new devices

A derived cDevice class shall implement a static function diff --git a/device.c b/device.c index 6a310377..48f5d40f 100644 --- a/device.c +++ b/device.c @@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: device.c 1.12 2002/08/16 09:50:43 kls Exp $ + * $Id: device.c 1.13 2002/08/25 09:16:51 kls Exp $ */ #include "device.h" @@ -111,6 +111,11 @@ bool cDevice::HasDecoder(void) const return false; } +cOsdBase *cDevice::NewOsd(int x, int y) +{ + return NULL; +} + cDevice *cDevice::GetDevice(int Ca, int Priority, int Frequency, int Vpid, bool *ReUse) { if (ReUse) diff --git a/device.h b/device.h index 14d8ec50..5f62417a 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 1.9 2002/08/16 08:52:27 kls Exp $ + * $Id: device.h 1.10 2002/08/25 09:16:34 kls Exp $ */ #ifndef __DEVICE_H @@ -43,6 +43,7 @@ enum ePlayMode { pmNone, // audio/video from decoder // KNOWN TO YOUR PLAYER. }; +class cOsdBase; class cChannel; class cPlayer; class cReceiver; @@ -129,6 +130,16 @@ public: virtual bool HasDecoder(void) const; // Tells whether this device has an MPEG decoder. +// OSD facilities + +public: + virtual cOsdBase *NewOsd(int x, int y); + // Creates a new cOsdBase object that can be used by the cOsd class + // to display information on the screen, with the upper left corner + // of the OSD at the given coordinates. If a derived cDevice doesn't + // implement this function, NULL will be returned by default (which + // means the device has no OSD capabilities). + // Channel facilities protected: diff --git a/dvbdevice.c b/dvbdevice.c index 6be882fa..52c7c3ba 100644 --- a/dvbdevice.c +++ b/dvbdevice.c @@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: dvbdevice.c 1.7 2002/08/16 09:27:53 kls Exp $ + * $Id: dvbdevice.c 1.8 2002/08/25 09:20:53 kls Exp $ */ #include "dvbdevice.h" @@ -193,6 +193,11 @@ bool cDvbDevice::HasDecoder(void) const return fd_video >= 0 && fd_audio >= 0; } +cOsdBase *cDvbDevice::NewOsd(int x, int y) +{ + return new cDvbOsd(x, y); +} + bool cDvbDevice::GrabImage(const char *FileName, bool Jpeg, int Quality, int SizeX, int SizeY) { int videoDev = DvbOpen(DEV_VIDEO, CardIndex(), O_RDWR, true); diff --git a/dvbdevice.h b/dvbdevice.h index ece1b454..a338399b 100644 --- a/dvbdevice.h +++ b/dvbdevice.h @@ -4,7 +4,7 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: dvbdevice.h 1.5 2002/08/16 08:53:30 kls Exp $ + * $Id: dvbdevice.h 1.6 2002/08/25 09:19:34 kls Exp $ */ #ifndef __DVBDEVICE_H @@ -48,6 +48,11 @@ public: virtual bool CanBeReUsed(int Frequency, int Vpid); virtual bool HasDecoder(void) const; +// OSD facilities + +public: + cOsdBase *NewOsd(int x, int y); + // Channel facilities private: diff --git a/osd.c b/osd.c index 58caf68c..a2daf603 100644 --- a/osd.c +++ b/osd.c @@ -4,13 +4,12 @@ * See the main source file 'vdr.c' for copyright information and * how to reach the author. * - * $Id: osd.c 1.34 2002/08/15 11:20:44 kls Exp $ + * $Id: osd.c 1.35 2002/08/25 09:18:31 kls Exp $ */ #include "osd.h" #include #include "device.h" -#include "dvbosd.h" #include "i18n.h" #include "status.h" @@ -73,7 +72,7 @@ cOsdBase *cOsd::OpenRaw(int x, int y) #ifdef DEBUG_OSD return NULL; #else - return osd ? NULL : new cDvbOsd(x, y); + return osd ? NULL : cDevice::PrimaryDevice()->NewOsd(x, y); #endif } -- cgit v1.2.3