Reimar Döffinger
c66bd78e3d
vf_scale: support PAL8 output by producing BGR8.
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While quality is bad, PAL8 support is needed to allow testing some
encoders that only support PAL8 input.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
13 years ago
Ronald S. Bultje
f99654d470
swscale: reintroduce full precision in 16-bit output.
13 years ago
Michael Niedermayer
abe0b8e9f3
sws: use shift for chroma sample up convertion
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sws: use shifts for non full range luma sample upconvertion
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
13 years ago
Ronald S. Bultje
28c1115a91
swscale: use 15-bit intermediates for 9/10-bit scaling.
13 years ago
Michael Niedermayer
46b32b5197
regtests/sws: update checksums for recent changes
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago
Ronald S. Bultje
7d7bacf0f1
swscale: fix overflow in 16-bit vertical scaling.
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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.
14 years ago
Ronald S. Bultje
f44d50a94c
swscale: fix 16-bit horizontal scaling underflow.
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When using e.g. lanczos scaling, values can drop below 0, so they
should never be unsigned.
14 years ago
Ronald S. Bultje
42d622fab3
swscale: fix 16-bit scaling when output is 8-bits.
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We would use the second half of the U plane buffer, rather than the
V plane buffer, to output the V plane pixels.
14 years ago
Ronald S. Bultje
45f6ffe5e9
swscale: implement >8bit scaling support.
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This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
14 years ago
Ronald S. Bultje
ef1ee362b3
swscale: implement >8bit scaling support.
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This means that precision is retained when scaling between sample
formats with >8 bits per component (48bit RGB, 16bit grayscale,
9/10/16bit YUV).
14 years ago
Mans Rullgard
b0da4903dd
fate: enable lavfi-pixmt tests on big endian systems
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Signed-off-by: Mans Rullgard <mans@mansr.com>
14 years ago
Ronald S. Bultje
dff5a83532
swscale: re-add support for non-native endianness.
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This works through some non-obvious hacks in utils.c.
14 years ago
Michael Niedermayer
0af8a71d66
swscale: fix JPEG-range YUV scaling artifacts.
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YUV planes were marked as uint16_t, but they contained signed data.
Fixes issue 1108 and 675.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
14 years ago
Peter Ross
c90626b2ea
hflip: make the filter accept PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
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Signed-off-by: Anton Khirnov <anton@khirnov.net>
14 years ago
Michael Niedermayer
116758a358
Fix yuvj420p scaling artefact, issue1108.
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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
14 years ago
Peter Ross
f5607c8361
Make the hflip filter accept PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
14 years ago
Mans Rullgard
05238927b7
fate: make lavfi tests output only md5
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Instead of saving huge raw files, use the md5: output pseudo-protocol
to calculate the checksum of the file directly. This is especially
useful when testing on remote targets as it avoids transferring 3.6GB
over the network.
(cherry picked from commit f4b1e21a63
)
14 years ago
Mans Rullgard
f4b1e21a63
fate: make lavfi tests output only md5
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Instead of saving huge raw files, use the md5: output pseudo-protocol
to calculate the checksum of the file directly. This is especially
useful when testing on remote targets as it avoids transferring 3.6GB
over the network.
14 years ago
Stefano Sabatini
a1e171dfee
Add hflip filter.
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Originally committed as revision 24806 to svn://svn.ffmpeg.org/ffmpeg/trunk
14 years ago