Re: [PATCH v3 1/4] v4l: add V4L2_PIX_FMT_Y12 format
On Fri, 11 Mar 2011 10:38:08 +0100 Michael Jones wrote: > On 03/11/2011 10:21 AM, Antonio Ospite wrote: > > Hi Michael, > > > > are you going to release also Y12 conversion routines for libv4lconvert? > > > > Regards, > >Antonio > > > > Hi Antonio, > > As I am neither a user nor developer of libv4lconvert, I am not planning > on adding Y12 conversion routines there. Hopefully somebody else will > step up. Maybe you? > I asked just for curiosity as I don't have any device producing this Y12 format, however I _might_ play with it if you can provide some Y12 (or Y10) raw frames. I am playing with some compressed variant of Y10 and I am exploring different ways to add support for those formats to libv4l. Regards, Antonio -- Antonio Ospite http://ao2.it PGP public key ID: 0x4553B001 A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? pgpnjrBzC4wkU.pgp Description: PGP signature
Re: [PATCH v3 1/4] v4l: add V4L2_PIX_FMT_Y12 format
On 03/11/2011 10:21 AM, Antonio Ospite wrote: > Hi Michael, > > are you going to release also Y12 conversion routines for libv4lconvert? > > Regards, >Antonio > Hi Antonio, As I am neither a user nor developer of libv4lconvert, I am not planning on adding Y12 conversion routines there. Hopefully somebody else will step up. Maybe you? -Michael MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler Registergericht: Amtsgericht Stuttgart, HRB 271090 Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [PATCH v3 1/4] v4l: add V4L2_PIX_FMT_Y12 format
On Fri, 11 Mar 2011 09:05:46 +0100 Michael Jones wrote: > Signed-off-by: Michael Jones > --- > Documentation/DocBook/v4l/pixfmt-y12.xml | 79 > ++ > include/linux/videodev2.h|1 + > 2 files changed, 80 insertions(+), 0 deletions(-) > create mode 100644 Documentation/DocBook/v4l/pixfmt-y12.xml > Hi Michael, are you going to release also Y12 conversion routines for libv4lconvert? Regards, Antonio -- Antonio Ospite http://ao2.it PGP public key ID: 0x4553B001 A: Because it messes up the order in which people normally read text. See http://en.wikipedia.org/wiki/Posting_style Q: Why is top-posting such a bad thing? pgphcaBRmszVs.pgp Description: PGP signature
Re: [PATCH v3 1/4] v4l: add V4L2_PIX_FMT_Y12 format
Hi Michael, Thanks for the patch. On Friday 11 March 2011 09:05:46 Michael Jones wrote: > Signed-off-by: Michael Jones > --- > Documentation/DocBook/v4l/pixfmt-y12.xml | 79 +++ > include/linux/videodev2.h|1 + > 2 files changed, 80 insertions(+), 0 deletions(-) > create mode 100644 Documentation/DocBook/v4l/pixfmt-y12.xml You also need to modify Documentation/DocBook/v4l/pixfmt.xml (and Documentation/DocBook/media-entities.tmpl) to include pixfmt-y12.xml, otherwise the new documentation file won't be used. Search for 'sub-y16' for an example. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
[PATCH v3 1/4] v4l: add V4L2_PIX_FMT_Y12 format
Signed-off-by: Michael Jones
---
Documentation/DocBook/v4l/pixfmt-y12.xml | 79 ++
include/linux/videodev2.h|1 +
2 files changed, 80 insertions(+), 0 deletions(-)
create mode 100644 Documentation/DocBook/v4l/pixfmt-y12.xml
diff --git a/Documentation/DocBook/v4l/pixfmt-y12.xml
b/Documentation/DocBook/v4l/pixfmt-y12.xml
new file mode 100644
index 000..ff417b8
--- /dev/null
+++ b/Documentation/DocBook/v4l/pixfmt-y12.xml
@@ -0,0 +1,79 @@
+
+
+V4L2_PIX_FMT_Y12 ('Y12 ')
+&manvol;
+
+
+V4L2_PIX_FMT_Y12
+Grey-scale image
+
+
+Description
+
+This is a grey-scale image with a depth of 12 bits per pixel. Pixels
+are stored in 16-bit words with unused high bits padded with 0. The least
+significant byte is stored at lower memory addresses (little-endian).
+
+
+ V4L2_PIX_FMT_Y12 4 × 4
+pixel image
+
+
+ Byte Order.
+ Each cell is one byte.
+
+
+
+
+
+ start + 0:
+ Y'00low
+ Y'00high
+ Y'01low
+ Y'01high
+ Y'02low
+ Y'02high
+ Y'03low
+ Y'03high
+
+
+ start + 8:
+ Y'10low
+ Y'10high
+ Y'11low
+ Y'11high
+ Y'12low
+ Y'12high
+ Y'13low
+ Y'13high
+
+
+ start + 16:
+ Y'20low
+ Y'20high
+ Y'21low
+ Y'21high
+ Y'22low
+ Y'22high
+ Y'23low
+ Y'23high
+
+
+ start + 24:
+ Y'30low
+ Y'30high
+ Y'31low
+ Y'31high
+ Y'32low
+ Y'32high
+ Y'33low
+ Y'33high
+
+
+
+
+
+
+
+
+
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 02da9e7..6fac463 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -288,6 +288,7 @@ struct v4l2_pix_format {
#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale
*/
#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale
*/
#define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale
*/
+#define V4L2_PIX_FMT_Y12 v4l2_fourcc('Y', '1', '2', ' ') /* 12 Greyscale
*/
#define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale
*/
/* Palette formats */
--
1.7.4.1
MATRIX VISION GmbH, Talstrasse 16, DE-71570 Oppenweiler
Registergericht: Amtsgericht Stuttgart, HRB 271090
Geschaeftsfuehrer: Gerhard Thullner, Werner Armingeon, Uwe Furtner
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