ffmpeg

Author	SHA1	Message	Date
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