[vdr] Firmware 0x261e and DVD playback

Dr. Werner Fink werner at suse.de
Fri Jun 17 15:14:32 CEST 2005


On Fri, Jun 17, 2005 at 01:21:06PM +0200, Johannes Stezenbach wrote:
> On Fri, Jun 17, 2005 at 12:43:22PM +0200, Dr. Werner Fink wrote:
> > On Thu, Jun 16, 2005 at 09:25:44PM +0200, André Weidemann wrote:
> > > Hello Werner,
> > > I was wondering whether or not you changed anything in the new firmware 
> > > that improves the Pan&Scan problem inside menus we discussed a while ago.
> > > I just tried the latest firmware under vdr-1.3.23 with the CVS-version 
> > > of the dvd plugin. But from what I could see the Pan&Scan option still 
> > > does nothing more than a center-cut-out.
> > > Did you change anything in the firmware to improve the display?
> > 
> > No ... what I'm miss is a good documentation about and
> > if or if not this is supported by the DVB cars.
> > 
> > Maybe Johannes knows more about.

Hmmm ... the driver in av7110_hw.h knows about

  #define VID_NONE_PREF           0x00    /* No aspect ration processing preferred */
  #define VID_PAN_SCAN_PREF       0x01    /* Pan and Scan Display preferred */
  #define VID_VERT_COMP_PREF      0x02    /* Vertical compression display preferred */
  #define VID_VC_AND_PS_PREF      0x03    /* PanScan and vertical Compression if allowed */
  #define VID_CENTRE_CUT_PREF     0x05    /* PanScan with zero vector */

but in av7110_av.c it only uses:

  VID_PAN_SCAN_PREF    for argument VIDEO_PAN_SCAN
  VID_VC_AND_PS_PREF   for argument VIDEO_LETTER_BOX
  VID_CENTRE_CUT_PREF  for argument VIDEO_CENTER_CUT_OUT

in the ioctl VIDEO_SET_DISPLAY_FORMAT the rest is EINVAL.

Andre: you may extend the header file
include/linux/dvb/video.h by appending two more
numbers in the enum type video_displayformat_t
and then add the two new cases into the
video ioctl VIDEO_SET_DISPLAY_FORMAT in av7110_av.c

Don't know if this makes a difference. The ioctl
VIDEO_SET_ATTRIBUTES seems to be a nop.


         Werner

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