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abe0b8e9f3
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10 Commits

Author SHA1 Message Date
Michael Niedermayer
abe0b8e9f3 sws: use shift for chroma sample up convertion 
sws: use shifts for non full range luma sample upconvertion

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
 2011-08-25 14:49:29 +02:00
Ronald S. Bultje
28c1115a91 swscale: use 15-bit intermediates for 9/10-bit scaling. 2011-08-12 11:54:25 -07:00
Ronald S. Bultje
62ee0e6a97 Revert "swscale: use 15-bit intermediates for 9/10-bit scaling." 
This reverts commit ac0fb59348. It
causes valgrind errors which I'll want to investigate before
resubmitting this.
 2011-08-02 12:27:43 -07:00
Ronald S. Bultje
ac0fb59348 swscale: use 15-bit intermediates for 9/10-bit scaling. 2011-08-02 10:34:02 -07:00
Joseph Artsimovich
eedb1f2034 swscale: mark YUV422P10(LE,BE) as supported for output 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-07-21 02:10:31 +01:00
Ronald S. Bultje
7d7bacf0f1 swscale: fix overflow in 16-bit vertical scaling. 
We operated on 31-bits, but with e.g. lanczos scaling, values can
add up to beyond 0x80000000, thus leading to output of zeroes. Drop
one bit of precision fixes this.
 2011-07-08 15:15:30 -07:00
Ronald S. Bultje
f44d50a94c swscale: fix 16-bit horizontal scaling underflow. 
When using e.g. lanczos scaling, values can drop below 0, so they
should never be unsigned.
 2011-07-08 15:15:30 -07:00
Ronald S. Bultje
42d622fab3 swscale: fix 16-bit scaling when output is 8-bits. 
We would use the second half of the U plane buffer, rather than the
V plane buffer, to output the V plane pixels.
 2011-07-08 15:15:30 -07:00
Ronald S. Bultje
ef1ee362b3 swscale: implement >8bit scaling support. 
This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
 2011-06-29 09:45:52 -07:00
Mans Rullgard
842f463c77 fate: merge identical pixdesc_be/le tests 
Signed-off-by: Mans Rullgard <mans@mansr.com>
 2011-06-28 21:31:42 +01:00