Log of /xvidcore/src/utils/mbtransquant.c
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Revision
1.31 -
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Sat Dec 10 05:20:35 2005 UTC (17 years, 9 months ago) by
syskin
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MAIN
Changes since
1.30: +5 -3 lines
Diff to
previous 1.30
slightly better trellis - check at least 3 coefficients. 0.05dB better with no measurable speed penalty
Revision
1.28 -
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Mon May 23 09:29:43 2005 UTC (18 years, 4 months ago) by
Skal
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MAIN
Changes since
1.27: +2 -2 lines
Diff to
previous 1.27
encoder.c: simplify_time() optimized by Euclid.
bitstream.c: write_video_packet_header() was buggy and
kind of obfuscated, as noticed by Sigdrak at free.fr.
from Edouard:
gcc4 warning removal.
- No executable shared objects installed
(Do not install the lib as executable. It's no use as the SO has no
main symbol anyway, and the static lib is not runnable anyway.)
- Statically link xvid_bench with libxvidcore.a
- New autoconf garbage removal
- Quotes in configure.in
Revision
1.21.2.21 -
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Sun Nov 30 16:13:16 2003 UTC (19 years, 9 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.20: +23 -20 lines
Diff to
previous 1.21.2.20
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branch point 1.21
* Thread safe MPEG4 quantization functions.
Cleaned up version of patch provided by Michael
- fixed compiling problems on gcc
- added const qualifiers every where it was possible to help C compiler
optimization.
- added the mpeg_quant_matrices param to all ASM function prototype
in comments (even if it's not used, that shows we do it deliberatly)
- forces m[intra][0][0] = 8, otherwise XviD could write invalid streams.
* Added real CRC computing in xvid_bench.c
Revision
1.21.2.20 -
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Mon Nov 24 22:06:19 2003 UTC (19 years, 10 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.19: +54 -35 lines
Diff to
previous 1.21.2.19
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branch point 1.21
Trellis was treating big levels exactly the same way as lower ones.
In some cases, trellis was doing wild optimizations favoring a 0
because the distortion introduced by that big coeff change was
acceptable. But visually this could result in some nasty blocks with wrong
chroma information or similar brutal changes in other planes as well.
Skal added big levels handling where trellis just tries to minimize
the cost varying the run value only. No level modification is done
anymore.
Revision
1.21.2.19 -
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Sun Nov 23 17:01:08 2003 UTC (19 years, 10 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.18: +65 -61 lines
Diff to
previous 1.21.2.18
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branch point 1.21
* Added trellis support for MPEg quantization type.
* Changed RD fixed point precision, should help avoiding overflow
(see the constant TL_SHIFT)
NB: we still have some problems when trellis optimizes DC for big DC
values.
Revision
1.21.2.7 -
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Thu Apr 10 13:05:54 2003 UTC (20 years, 5 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.6: +10 -9 lines
Diff to
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2003-04-10 GMT Edouard Gomez <ed.gomez@free.fr> patch-14
Summary:
Removed all ABS() macros.
Revision:
xvidcore--devapi4--1.0--patch-14
All ABS macros have been replace with their stdlib.h/math.h
equivalent. This gives a 33% overall speedup for the plain C encoder,
while the ia32 one seems to suffer a small speed loss. However this
speed loss is very small and it seems it depends on the CPU type as
the abs/fabs usage is impacting badly on sad functions but impacting
well on interpolate functions ... weird inst'it ?
modified files:
src/bitstream/mbcoding.c src/global.h src/image/image.c
src/motion/motion_comp.c src/motion/motion_est.c
src/motion/sad.c src/prediction/mbprediction.c
src/utils/mbtransquant.c src/xvid.c
Revision
1.21.2.2 -
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Mon Mar 10 00:38:49 2003 UTC (20 years, 6 months ago) by
edgomez
Branch:
dev-api-4
Changes since
1.21.2.1: +16 -1 lines
Diff to
previous 1.21.2.1
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2003-03-10 00:36:15 GMT Edouard Gomez <ed.gomez@free.fr> patch-4
Summary:
Adds extended stats support even for bframes in xvidcore.
Revision:
xvidcore--devapi4--1.0--patch-4
This patch enables core extended stats support even for bframes. It
modifies the way the MBTransQuantBVOP function does its work. It used
to not dequant, idct the MB because bframes are never used as reference
frames. However if we want to compute stats, then we must perform these
inverse transformations.
modified files:
src/encoder.c src/utils/mbfunctions.h src/utils/mbtransquant.c
Revision
1.17 -
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Wed Oct 16 20:58:22 2002 UTC (20 years, 11 months ago) by
h
Branch:
MAIN
Changes since
1.16: +2 -2 lines
Diff to
previous 1.16
fixed stupid-programmer interlacing bug
fields could have been incorrectly handled due to missing bias test
Revision
1.16 -
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Wed Oct 9 22:51:42 2002 UTC (20 years, 11 months ago) by
edgomez
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MAIN
Changes since
1.15: +2 -3 lines
Diff to
previous 1.15
- Removed a stupid ')' squatting the previous gruel's patch :-) (did you ever check the code compiled ?)
Revision
1.8 -
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Fri Aug 9 19:58:41 2002 UTC (21 years, 1 month ago) by
chl
Branch:
MAIN
Changes since
1.7: +321 -0 lines
Diff to
previous 1.7
Added several MB-functions which do the same as MBTransQuantInter/Intra now,
but split into several routines. MBTransQuantInter2/Intra2 do the same as
-Inter/Intra but using the split up routines, MBTransQuantBVOP skips unneeded
decoding operations for B-VOPs.
Revision
1.3 -
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Thu Mar 28 20:57:25 2002 UTC (21 years, 6 months ago) by
edgomez
Branch:
MAIN
Changes since
1.2: +80 -69 lines
Diff to
previous 1.2
Big patch, use it with care (tests done with GNU/Linux) :
- Trivial warnings in encoder.c line 282 ret1 = ret 2 = 0;
- Lot of "New line at end of file missing" warnings fixed (gcc3)
- All 2d arrays have been turned into 1d arrays
To force alignment of matrices on stack, use DECLARE_ALIGNED_MATRIX
(read portab.h)
Win32 users should give feedback.
Revision
1.2 -
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Tue Mar 26 11:16:08 2002 UTC (21 years, 6 months ago) by
h
Branch:
MAIN
Changes since
1.1: +242 -77 lines
Diff to
previous 1.1
interlacing support - slow (MBDecideFieldDCT()), buggy (p-frames), incomplete (field motion prediction)
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