Ronald S. Bultje
f99654d470
swscale: reintroduce full precision in 16-bit output.
2011-10-22 10:35:14 -07:00
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
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
b0da4903dd
fate: enable lavfi-pixmt tests on big endian systems
...
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-06-28 23:35:00 +01:00
