Commit Graph

2057 Commits

Author SHA1 Message Date
James Zern
6e37cb942f Merge "cosmetics: backward_references.c: reindent after a7d2ee3" 2014-02-11 16:28:55 -08:00
James Zern
a42ea9742a cosmetics: backward_references.c: reindent after a7d2ee3
a7d2ee3 Optimize cache estimate logic.

Change-Id: I81dd1eea49f603465dc5f3afae8a101e5205e963
2014-02-11 15:52:22 -08:00
skal
6c32744214 Merge "fix missing __BIG_ENDIAN__ definition on some platform" 2014-02-11 14:51:11 -08:00
skal
a8b6aad155 fix missing __BIG_ENDIAN__ definition on some platform
e.g: mips-gcc doesn't define __BIG_ENDIAN__

Change-Id: Ic06bf453164ddddc69a523e7845a4993e14a1af2
2014-02-11 14:43:44 -08:00
Vikas Arora
fde2904b8a Increase initial buffer size for VP8L Bit Writer.
Increase the initial buffer size for VP8L Bit Writer from 4bpp to 8bpp.
The resize buffer is expensive (requires realloc and copy) and this additional
memory (0.5 * W * H) doesn't add much overhead on the lossless encoder.

Change-Id: Ic1fe55cd7bc3d1afadc799e4c2c8786ec848ee66
2014-02-11 11:13:21 -08:00
Vikas Arora
a7d2ee39be Optimize cache estimate logic.
Optimize 'VP8LCalculateEstimateForCacheSize' for lower quality ranges (Q < 50).
The entropy is generally lower for higher cache_bits, so start searching from
higher cache_bits and settle for a local minima, instead of evaluating all
values.

This speeds up the lossless encoding at lower qualities by 10-15%.

Change-Id: I33c1e958515a2549f2e6f64b1aab3f128660dcec
2014-02-11 10:59:01 -08:00
pascal massimino
7fb6095b03 Merge "dec_neon.c: add TransformAC3" 2014-02-11 09:17:34 -08:00
skal
bf182e837e VP8LBitWriter: use a bit-accumulator
* simplify the endian logic
* remove the need for memset()
* write 16 or 32 at a time (likely aligned)

Makes the code a bit faster on ARM (~1%)

Change-Id: I650bc5654e8d0b0454318b7a78206b301c5f6c2c
2014-02-11 09:12:45 -08:00
Djordje Pesut
3f40b4a581 Merge "MIPS: MIPS32r1: clang macro warning resolved" 2014-02-11 00:06:36 -08:00
Urvang Joshi
1684f4ee37 WebP Decoder: Mark some truncated bitstreams as invalid
Specifically, check for truncated RIFF and/or VP8(L) chunks.

For more context, see:
https://code.google.com/p/webp/issues/detail?id=185

Change-Id: I91ca2dbf05080660fbc513244fc53adc57fc04b5
2014-02-10 16:35:27 -08:00
Jovan Zelincevic
acbedac475 MIPS: MIPS32r1: clang macro warning resolved
.set macro - Enables the expansion of macro instructions.

Change-Id: I1e44fe056798aeff803cc97171724d21da1fc2bf
2014-02-10 06:50:11 -08:00
James Zern
228e4877ab dec_neon.c: add TransformAC3
based on SSE2 version

Change-Id: Icc6782955253c98e83d5984153b596ef5f1c0d34
2014-02-08 12:47:54 -08:00
James Zern
393f89b763 Android.mk: avoid gcc-specific flags with clang
Change-Id: Idb1ed2bb1dd5d9f65ca07185ef9838e587dc4e64
2014-02-07 20:31:44 -08:00
skal
32aeaf115a revamp VP8LColorSpaceTransform() a bit
-> remove the 'color_transform' multiplier, use more constants, etc.

This function is particularly critical, mostly because of
GetBestColorTransformForTile().
Loop is a bit faster (maybe ~1%)

Change-Id: I90c96a3437cafb184773acef55c77e40c224388f
2014-02-05 10:37:06 +01:00
James Zern
0c7cc4ca20 Merge "Don't dereference NULL, ensure HashChain fully initialized" 2014-02-03 22:58:37 -08:00
Scott Talbot
391316fee2 Don't dereference NULL, ensure HashChain fully initialized
Found by clang's static analyzer, they look validly uninitialized
to me.

Change-Id: I650250f516cdf6081b35cdfe92288c20a3036ac8
2014-02-03 21:16:59 -08:00
skal
926ff40229 WEBP_SWAP_16BIT_CSP: remove code dup
and prepare for potentially supporting both RGBA4444 and BARG4444

Change-Id: If5200289bc6338757a2ceb2df1a19de732595052
2014-02-03 13:24:33 -08:00
Vikas Arora
1d1cd3bbd6 Fix decode bug for rgbA_4444/RGBA_4444 color-modes.
The WEBP_SWAP_16BIT_CSP flag needs to be honored while filling the Alpha (4 bits)
data in the destination buffer and while pre-multiplying the alpha to RGB colors.

Change-Id: I3b07307d60963db8d09c3b078888a839cefb35ba
2014-02-03 09:20:54 -08:00
Pascal Massimino
939e70e7d3 update AUTHORS file
Change-Id: I50e8f20016097cf63eaeb46a8588203a2165b161
2014-01-31 12:08:05 -08:00
James Zern
8934a622ac cosmetics: *_mips32.c
indent, comments, unused includes

Change-Id: Id0aabc52d05bb633f62aec022155ec27699cf5a0
2014-01-30 18:03:48 -08:00
Djordje Pesut
dd438c9a7d MIPS: MIPS32r1: Optimization of some simple point-sampling functions. PATCH [6/6]
Change-Id: I2020e71e9be5d17d4bf67cabf6c470ca43d5d838
2014-01-29 15:37:31 +01:00
Djordje Pesut
53520911c3 Added support for calling sampling functions via pointers.
Change-Id: Ic4d72e6b175a6b27bcdcc8cd97828e44ea93e743
2014-01-29 15:32:35 +01:00
Jovan Zelincevic
d16c69749b MIPS: MIPS32r1: Optimization of filter functions. PATCH [5/6]
Change-Id: Ifbd305e0514f09a587db02c3970f22190808503a
2014-01-29 15:03:45 +01:00
Djordje Pesut
04336fc7f8 MIPS: MIPS32r1: Optimization of function TransformOne. PATCH [4/6]
Change-Id: I5b98e2de940977538cf91bfa2128f4d1daa5c170
2014-01-28 20:10:43 -08:00
Djordje Pesut
92d8fc7dd4 MIPS: MIPS32r1: Optimization of function WebPRescalerImportRow. PATCH [3/6]
Change-Id: I32339a8d2d03f1a8d8638563d2b2c9e3a13a4909
2014-01-29 00:12:41 +01:00
skal
bbc23ff34c parse one row of intra modes altogether
(instead of per-macroblock)

speed unchanged.
simplified the context-saving for incremental decoding

Change-Id: I301be581bab581ff68de14c4ffe5bc0ec63f34be
2014-01-28 21:40:40 +01:00
James Zern
a2f608f9e0 Merge "MIPS: MIPS32r1: Optimization of function WebPRescalerExportRow. [2/6]" 2014-01-28 11:19:25 -08:00
Djordje Pesut
88230854e3 MIPS: MIPS32r1: Optimization of function WebPRescalerExportRow. [2/6]
Change-Id: I420e646deefac5df9a8dcec3b02da8dff02b1167
2014-01-28 11:02:01 -08:00
James Zern
c5a5b0286f decode mt+incremental: fix segfault in debug builds
VP8GetThreadMethod() may be called with a NULL headers param; correct an
assert.

broken since:
8a2fa09 Add a second multi-thread method

Change-Id: If7b6d1b8f4ec874d343a806cee5f5e6bb6438620
2014-01-27 20:33:05 -08:00
skal
9882b2f953 always use fast-analysis for all methods.
This makes the segmentation overall less prone to
local-optimum  or boundary effect.

(and overall, encoding is a little faster)

Change-Id: I35688098b0f43c28b5cb81c4a92e1575bb0eddb9
2014-01-24 18:17:04 +01:00
James Zern
000adac011 Merge "autoconf: update ax_pthread.m4" 2014-01-24 01:13:11 -08:00
James Zern
2d2fc37d98 update .gitignore
- generalize *.pc for libwebp(mux|demux)
- add auto-generated mkinstalldirs

Change-Id: I7543209722d6b64830fa61f88eccf54165920cc4
2014-01-23 19:35:28 -08:00
James Zern
5bf4255af4 Merge "Make it possible to avoid automagic dependencies" 2014-01-23 12:57:04 -08:00
Pascal Massimino
c1cb1933d5 disable NEON for arm64 platform
The registers and instructions are quite different to 32bit
and the assembly code needs a rewrite.

more info: http://people.linaro.org/~rikuvoipio/aarch64-talk/

Change-Id: Id75dbc1b7bf47f43a426ba2831f25bb8fa252c4f
2014-01-23 12:35:01 -08:00
Paweł Hajdan, Jr
73a304e953 Make it possible to avoid automagic dependencies
See
 https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Automagic_dependencies
for more info.
This patch makes it possible to request several dependencies not to be
used even if they are present on the system.

Change-Id: Ib32f60c001ade01eda3e89463279725ee4243ca2
2014-01-23 12:29:09 -08:00
Jovan Zelincevic
4d493f8db2 MIPS: MIPS32r1: Decoder bit reader function optimized. PATCH [1/6]
Solved unaligned load and added MIPS32r1 support for VP8LoadNewBytes.

Change-Id: I7782e668a8f2b9dace0ab6afeaff3449bbc7d90b
2014-01-17 22:58:40 +01:00
skal
c741183c10 make WebPCleanupTransparentArea work with argb picture
the -alpha_cleanup flag was ineffective since we switched cwebp
to using ARGB input always.

Original idea by David Eckel (dvdckl at gmail dot com)

Change-Id: I0917a8b91ce15a43199728ff4ee2a163be443bab
2014-01-17 20:19:16 +01:00
skal
5da185522b add a decoding option to flip image vertically
New API options: WebPDecoderOptions.flip and 'dwebp -flip ...'

it uses negative stride trick.

Also changed the decoder code to support user-supplied
buffers with negative stride, independently of the
WebPDecoderOptions.flip value.

Change-Id: I4dc0d06f0c87e51a3f3428be4fee2d6b5ad76053
2014-01-16 15:48:43 +01:00
James Zern
00c3c4e114 Merge "add man/vwebp.1" 2014-01-10 17:47:57 -08:00
James Zern
2c6bb42806 add man/vwebp.1
Change-Id: I3257fdeb7d48af99946f751e3e2cd07660117255
2014-01-10 17:43:03 -08:00
James Zern
ea59a8e980 Merge "Merge tag 'v0.4.0'" 2014-01-10 17:09:19 -08:00
skal
7574bed43d fix comments related to array sizes
thanks to foivos_g4 at hotmail dot com for spotting this.

Change-Id: I8cd301bae58a6edbc3ef47607654bc21321721ca
2014-01-09 17:30:25 +01:00
James Zern
0b5a90fdb5 dwebp.1: fix option formatting
Change-Id: I427e003cacb3e71ae6f6adc632dbb93be2eea0e7
2014-01-08 15:16:37 -08:00
James Zern
effcb0fdfa libwebp 0.4.0
- 12/19/13: version 0.4.0
   * improved gif2webp tool
   * numerous fixes, compression improvement and speed-up
   * dither option added to decoder (dwebp -dither 50 ...)
   * improved multi-threaded modes (-mt option)
   * improved filtering strength determination
   * New function: WebPMuxGetCanvasSize
   * BMP and TIFF format output added to 'dwebp'
   * Significant memory reduction for decoding lossy images with alpha.
   * Intertwined decoding of RGB and alpha for a shorter
     time-to-first-decoded-pixel.
   * WebPIterator has a new member 'has_alpha' denoting whether the frame
     contains transparency.
   * Container spec amended with new 'blending method' for animation.
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Merge tag 'v0.4.0'

libwebp 0.4.0
- 12/19/13: version 0.4.0
  * improved gif2webp tool
  * numerous fixes, compression improvement and speed-up
  * dither option added to decoder (dwebp -dither 50 ...)
  * improved multi-threaded modes (-mt option)
  * improved filtering strength determination
  * New function: WebPMuxGetCanvasSize
  * BMP and TIFF format output added to 'dwebp'
  * Significant memory reduction for decoding lossy images with alpha.
  * Intertwined decoding of RGB and alpha for a shorter
    time-to-first-decoded-pixel.
  * WebPIterator has a new member 'has_alpha' denoting whether the frame
    contains transparency.
  * Container spec amended with new 'blending method' for animation.

* tag 'v0.4.0':
  update ChangeLog
  update NEWS description with new general features
  gif2webp: don't use C99 %zu
  cwebp: fix metadata output w/lossy+alpha
  makefile.unix: clean up libgif2webp_util.a
  update Changelog
  bump version to 0.4.0
  update AUTHORS & .mailmap
  update NEWS for 0.4.0

Change-Id: I6df1b512fe0b697192f1f9b29431cd59aa6063d1
2013-12-30 09:57:59 -08:00
James Zern
7c76255dd4 autoconf: update ax_pthread.m4
from git://git.savannah.gnu.org/autoconf-archive.git
100644 blob d383ad5c6d	m4/ax_pthread.m4

dd94691 AX_PTHREAD: add support for Clang
386b290 AX_PTHREAD: fix support for AIX
e40cfd6 AX_PTHREAD: improve support for AIX

Change-Id: Ic1f1edc656e4e917b88f151493147f650b94242f
2013-12-29 11:56:21 -05:00
skal
fff2a11b03 make -short work with -print_ssim, -print_psnr, etc.
PSNR was always printed when using -short

Change-Id: I826785917961d355a980e4ac27dd1cf1295cb6de
2013-12-23 12:03:00 +01:00
James Zern
68e7901da5 update ChangeLog
Change-Id: If51472e72adaec0a198a8b09becb8be192153ca8
2013-12-20 00:49:40 -08:00
Pascal Massimino
256e4333e1 update NEWS description with new general features
Change-Id: I22be12d843e84f80965dc5f2cb16ba2475ce16ad
2013-12-20 00:36:47 -08:00
James Zern
296253407c Merge "gif2webp: don't use C99 %zu" into 0.4.0 2013-12-20 00:06:33 -08:00
James Zern
3b9f9dd07b gif2webp: don't use C99 %zu
this would require a PRIuS or similar macro for proper platform
compatibility (Visual Studio for instance would be variants of %lu)

Change-Id: I2b9fcb1639db024775fb47dbcf79a2240f3d98f2
2013-12-19 18:52:48 -08:00