Commit Graph

15 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
Michael Niedermayer
ca1dfea127 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  swscale: add dithering to yuv2yuvX_altivec_real
  rv34: free+allocate buffer instead of reallocating it to preserve alignment
  h264: add missing brackets.
  swscale: use 15-bit intermediates for 9/10-bit scaling.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-08-13 22:24:47 +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
Michael Niedermayer
46b32b5197 regtests/sws: update checksums for recent changes
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-07-11 03:54:30 +02:00
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
8a8d0ce208 swscale: for >8bit scaling, read in native bit-depth.
For 9/10bit, it means we don't have to upscale to 16bit before
actual scaling or pixel format conversion, and thus a performance
gain.
2011-07-01 09:08:26 -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
Michael Niedermayer
9e17d051ac swscale: Fix yuv422p10
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-29 05:56:46 +02:00
Michael Niedermayer
bb9d5171a7 Merge remote-tracking branch 'qatar/master'
* qatar/master: (21 commits)
  swscale: Add Doxygen for hyscale_fast/hScale.
  fate: enable lavfi-pixmt tests on big endian systems
  PPC: swscale: disable altivec functions for unsupported formats
  fate: merge identical pixdesc_be/le tests
  swscale: Add Doxygen for yuv2planar*/yuv2packed* functions.
  build: call texi2pod.pl with full path instead of symlink
  build: include sub-makefiles using full path instead of symlinks
  swscale: update big endian reference values after dff5a835.
  wavpack: skip blocks with no samples
  cosmetics: remove outdated comment that is no longer true
  build: replace some addprefix/addsuffix with substitution refs
  avutil: Remove unused arbitrary precision integer code.
  configure: Drop check for availability of ten assembler operands.
  aacenc: Save channel configuration for later use.
  aacenc: Fix codebook trellising for zeroed bands.
  swscale: change prototypes of scaled YUV output functions.
  swscale: re-add support for non-native endianness.
  swscale: disentangle yuv2rgbX_c_full() into small functions.
  swscale: split yuv2packed[12X]_c() remainders into small functions.
  swscale: split yuv2packedX_altivec in smaller functions.
  ...

Conflicts:
	Makefile
	configure
	libavcodec/x86/dsputil_mmx.c
	libavfilter/Makefile
	libavformat/Makefile
	libavutil/integer.c
	libavutil/integer.h
	libswscale/swscale.c
	libswscale/swscale_internal.h
	libswscale/x86/swscale_template.c
	tests/ref/lavfi/pixdesc_le
	tests/ref/lavfi/pixfmts_scale

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-06-29 05:23:12 +02:00
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