Fixed scaling SPU bitmaps in Letterbox mode when playing NTSC material

HISTORY

@@ -2291,3 +2291,5 @@ Video Disk Recorder Revision History
   the "Channels" menu (thanks to Mirko Günther for reporting this one).
 - Made the plugin library directory configurable via Make.config (thanks to
   Ludwig Nussel).
+- Fixed scaling SPU bitmaps in Letterbox mode when playing NTSC material.
+  In order to do this, the cDevice was given a new member function GetVideoSystem().

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 1.46 2003/08/02 11:44:28 kls Exp $
+ * $Id: device.c 1.47 2003/08/15 12:34:36 kls Exp $
  */
 
 #include "device.h"
@@ -216,6 +216,11 @@ 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)
 

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 1.33 2003/05/11 08:50:04 kls Exp $
+ * $Id: device.h 1.34 2003/08/15 13:05:50 kls Exp $
  */
 
 #ifndef __DEVICE_H
@@ -45,6 +45,10 @@ enum ePlayMode { pmNone,           // audio/video from decoder
                  // KNOWN TO YOUR PLAYER.
                };
 
+enum eVideoSystem { vsPAL,
+                    vsNTSC
+                  };
+
 class cOsdBase;
 class cChannel;
 class cPlayer;
@@ -248,6 +252,9 @@ public:
   virtual void SetVideoFormat(bool VideoFormat16_9);
          ///< Sets the output video format to either 16:9 or 4:3 (only useful
          ///< if this device has an MPEG decoder).
+  virtual eVideoSystem GetVideoSystem(void);
+         ///< Returns the video system of the currently displayed material
+         ///< (default is PAL).
 
 // Audio facilities
 

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 1.60 2003/05/24 13:23:51 kls Exp $
+ * $Id: dvbdevice.c 1.61 2003/08/15 13:03:41 kls Exp $
  */
 
 #include "dvbdevice.h"
@@ -525,6 +525,19 @@ void cDvbDevice::SetVideoFormat(bool VideoFormat16_9)
      CHECK(ioctl(fd_video, VIDEO_SET_FORMAT, VideoFormat16_9 ? VIDEO_FORMAT_16_9 : VIDEO_FORMAT_4_3));
 }
 
+eVideoSystem cDvbDevice::GetVideoSystem(void)
+{
+  eVideoSystem VideoSytem = vsPAL;
+  video_size_t vs;
+  if (ioctl(fd_video, VIDEO_GET_SIZE, &vs) == 0) {
+     if (vs.h == 480 || vs.h == 240)
+        VideoSytem = vsNTSC;
+     }
+  else
+     LOG_ERROR;
+  return VideoSytem;
+}
+
 //                            ptAudio        ptVideo        ptPcr        ptTeletext        ptDolby        ptOther
 dmx_pes_type_t PesTypes[] = { DMX_PES_AUDIO, DMX_PES_VIDEO, DMX_PES_PCR, DMX_PES_TELETEXT, DMX_PES_OTHER, DMX_PES_OTHER };
 

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 1.21 2003/05/02 12:21:51 kls Exp $
+ * $Id: dvbdevice.h 1.22 2003/08/15 12:34:55 kls Exp $
  */
 
 #ifndef __DVBDEVICE_H
@@ -80,6 +80,7 @@ public:
 
 public:
   virtual void SetVideoFormat(bool VideoFormat16_9);
+  virtual eVideoSystem GetVideoSystem(void);
 
 // Audio facilities
 

dvbspu.c

@@ -8,7 +8,7 @@
  *
  * parts of this file are derived from the OMS program.
  *
- * $Id: dvbspu.c 1.3 2002/10/26 10:46:49 kls Exp $
+ * $Id: dvbspu.c 1.4 2003/08/15 13:04:39 kls Exp $
  */
 
 #include <assert.h>
@@ -301,8 +301,10 @@ void cDvbSpuDecoder::clearHighlight(void)
 
 int cDvbSpuDecoder::ScaleYcoord(int value)
 {
-    if (scaleMode == eSpuLetterBox)
-        return lround((value * 3.0) / 4.0 + 72.0);
+    if (scaleMode == eSpuLetterBox) {
+        int offset = cDevice::PrimaryDevice()->GetVideoSystem() == vsPAL ? 72 : 60;
+        return lround((value * 3.0) / 4.0) + offset;
+        }
     else
         return value;
 }