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authorAndy Walls <awalls@radix.net>2009-05-11 03:14:29 +0200
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-06-16 23:21:14 +0200
commit5ab740522fbee3a2ef83554b9a9c92692c8c0f74 (patch)
tree73b353ad969e281650a53e9ed1c55c4c5a1d3cb7 /drivers/media/video/cx18/cx18-streams.c
parentV4L/DVB (11861): saa7134: enable digital tv support for Hauppauge WinTV-HVR11... (diff)
downloadlinux-5ab740522fbee3a2ef83554b9a9c92692c8c0f74.tar.xz
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V4L/DVB (11863): cx18: Initial attempt to get sliced VBI working for 625 line systems
Initial changes to get sliced VBI for 625 line system working. This is patch is untested. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/cx18/cx18-streams.c')
-rw-r--r--drivers/media/video/cx18/cx18-streams.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/media/video/cx18/cx18-streams.c b/drivers/media/video/cx18/cx18-streams.c
index 41a1b2618aac..a0800393316e 100644
--- a/drivers/media/video/cx18/cx18-streams.c
+++ b/drivers/media/video/cx18/cx18-streams.c
@@ -371,9 +371,15 @@ static void cx18_vbi_setup(struct cx18_stream *s)
* Tell the encoder to capture 21-4+1=18 lines per field,
* since we want lines 10 through 21.
*
+ * For 625/50 systems, according to the VIP 2 & BT.656 std:
+ * The EAV RP code's Field bit toggles on line 1, a few lines
+ * after the Vertcal Blank bit has already toggled.
+ * Tell the encoder to capture 23-1+1=23 lines per field,
+ * since we want lines 6 through 23.
+ *
* FIXME - revisit for 625/50 systems
*/
- lines = cx->is_60hz ? (21 - 4 + 1) * 2 : 38;
+ lines = cx->is_60hz ? (21 - 4 + 1) * 2 : (23 - 1 + 1) * 2;
}
data[0] = s->handle;