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4 Commits

Author SHA1 Message Date
Hans Verkuil c204e1fafb [media] vivid: fix buffer overrun 
The random_line buffer must be twice the maximum width, but it only allocated
the maximum width, so it was only half the size it needed to be.

Surprisingly I never saw the kernel fail on this, but the same TPG code used in
qv4l2 crashed and valgrind helped me track this bug down.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
 2014-10-21 08:52:11 -02:00
Hans Verkuil 73d8102298 [media] vivid: tpg_reset_source prototype mismatch 
Replaced enum v4l2_field by u32, just as the prototype in the
header has.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
 2014-09-08 10:00:58 -03:00
Mauro Carvalho Chehab 6c515a44a8 [media] vivid-tpg: use true/false for boolean vars 
Instead of using 0 or 1 for boolean, use the true/false
defines.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
 2014-09-03 17:59:19 -03:00
Hans Verkuil 63881df94d [media] vivid: add the Test Pattern Generator 
The test patterns for video capture are generated by this code. All patterns
are precalculated taking into account colorspace information, pixel and video
aspect ratios and scaling information.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
 2014-09-02 17:46:05 -03:00