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dd1c3873fe
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594 Commits

Author SHA1 Message Date
Vikas Arora
dd1c3873fe Add image-hint for low-color images. 
For low-color images, it may be better to not use color-palettes.
Users should treat this as one another hint (as with Photo &
Picture) and another parameter for tuning the compression density.
The optimum compression can still be obtained by running (outer loop)
compression with all possible tunable parameters.

Change-Id: Icb1a4face2a84774e16e801aee4a8ae97e232e8a
 2012-07-31 23:11:19 -07:00
Pascal Massimino
4eb7aa64da Merge "WebPCheckMalloc() and WebPCheckCalloc():" into 0.2.0 2012-07-31 18:37:14 -07:00
Pascal Massimino
80cc7303ab WebPCheckMalloc() and WebPCheckCalloc(): 
safe size-checking versions of malloc() and calloc()

Change-Id: Iffa3138c48b9b254b3d7eaad913e1f852d9dafba
 2012-07-31 16:56:39 -07:00
Pascal Massimino
a7cc729126 fix type and conversion warnings 
avoids warning messages on MSVC mainly

Change-Id: I80f281d5263a54c6a224bb095175497cf2f4ce1e
 2012-07-25 14:18:21 -07:00
Pascal Massimino
7d853d79dc add stats for lossless 
* Extend AuxStats with new fields
  it's slightly ABI-incompatible, but i guess it's ok for 0.1.99+
  I expect to add more stats later, possibly (predictor stats, etc.)
* Have cwebp report the features used by lossless
  compression (either for alpha or full lossless coding)
* Print the PSNR for alpha (useful in case of -alpha_q)
* clean-up alpha.c signatures
+ misc cleanup (added const '* const ptr', etc.)

Change-Id: I157a21581f1793cb0c6cc0882e7b0a2dde68a970
 2012-07-24 16:17:13 -07:00
Pascal Massimino
d39177b74c make QuantizeLevels() store the sum of squared error 
(instead of MSE).
Useful for directly storing the alpha-PSNR (in another patch)

Change-Id: I4072864f9c53eb4f38366e8025a2816eb14f504e
 2012-07-24 15:06:18 -07:00
Pascal Massimino
5955cf5e89 replace x*155/100 by x*101581>>16 
Don't expect a visible speed diff. it's just cool.
(and, that's one less TODO in the code).

Change-Id: Iaeb2f1c930debb51501e170ee806f2f945fb1a8d
 2012-07-24 15:06:00 -07:00
Pascal Massimino
7d732f905b make QuantizeLevels() store the sum of squared error 
(instead of MSE).
Useful for directly storing the alpha-PSNR (in another patch)

Change-Id: I4072864f9c53eb4f38366e8025a2816eb14f504e
 2012-07-23 14:26:56 -07:00
Pascal Massimino
e45a446ad5 replace x*155/100 by x*101581>>16 
Don't expect a visible speed diff. it's just cool.
(and, that's one less TODO in the code).

Change-Id: Iaeb2f1c930debb51501e170ee806f2f945fb1a8d
 2012-07-23 14:23:33 -07:00
Urvang Joshi
159b75d31a cwebp output size consistency: 
In case of lossless too, it should report full file size.
Fixes this issue: http://code.google.com/p/webp/issues/detail?id=126

Change-Id: I96e2bf09e6c9470a0267f5eea911d9b40d1addb3
 2012-07-23 12:47:24 +05:30
James Zern
cbee59eba4 Merge commit 'v0.1.99' 
* commit 'v0.1.99': (39 commits)
  Update ChangeLog
  add extra precision about default values and behaviour
  header/doc clean up
  Makefile.vc: fix webpmux.exe *-dynamic builds
  remove INAM, ICOP, ... chunks from the test webp file.
  harmonize authors as "Name (mail@address)"
  makefile.unix: provide examples/webpmux target
  update NEWS
  README: cosmetics
  man/cwebp.1: wording, change the date
  add a very crude progress report for lossless
  rename 'use_argb_input' to 'use_argb'
  add some padding bytes areas for later use
  fixing the findings by Frederic Kayser to the bitstream spec
  add missing ABI compatibility checks
  Doc: container spec text tweaks
  add ABI compatibility check
  mux.h: remove '* const' from function parameters
  encode.h: remove '* const' from function parameters
  decode.h: remove '* const' from function parameters
  ...

Conflicts:
	src/mux/muxinternal.c

Change-Id: I635d095c451742e878088464fe6232637a331511
 2012-07-21 12:20:19 -07:00
James Zern
d1fd78263f Merge "add extra precision about default values and behaviour" into 0.2.0 2012-07-19 18:15:45 -07:00
Pascal Massimino
efc826e04a add extra precision about default values and behaviour 
Change-Id: I445f4d3b20a53d32819fe361f74443e0a0c8a632
 2012-07-19 18:08:42 -07:00
Pascal Massimino
9f29635d95 header/doc clean up 
Put emphasis on RGBA decoding instead of RGB/BGR
Clarify doc at some rough spots
Misc typo fix and cosmetics

Change-Id: Ic5fcfcc5bf4d612c5de23b0a5499f1fadde55bfe
 2012-07-19 18:05:03 -07:00
Pascal Massimino
2fc1301577 harmonize authors as "Name (mail@address)" 
Change-Id: I85bfae61a37de75a5ed945a906002de2ef75149f
 2012-07-19 16:09:47 -07:00
James Zern
3e5bbe1c2e Merge "rename 'use_argb_input' to 'use_argb'" into 0.2.0 2012-07-18 23:26:42 -07:00
James Zern
ce90847a40 Merge "add some padding bytes areas for later use" into 0.2.0 2012-07-18 23:26:18 -07:00
Pascal Massimino
0275159143 add a very crude progress report for lossless 
better than nothing. Removed the warning in cwebp.c
(and silenced the warning in quiet mode too)

Change-Id: I85bbeaf77e0f60ead798886043dc053e6b44def5
 2012-07-18 22:54:50 -07:00
Urvang Joshi
a4b9b1c604 Remove some unused enum values. 
- WEBP_MUX_INVALID_PARAMETER: was used only at one place, and that too
should actually be an assert().
- WEBP_MUX_ERROR: was never used.

Change-Id: I8883cb4dfae7a7918507501f21fced0c04dda36a
 2012-07-19 11:23:37 +05:30
Pascal Massimino
dd1081763c rename 'use_argb_input' to 'use_argb' 
long name, and there's not really an 'output' equivalent

Change-Id: I9133ff734ae8d6572cb2f607211361f011fc0bc1
 2012-07-18 22:47:16 -07:00
Pascal Massimino
90516ae8f5 add some padding bytes areas for later use 
so we can add few fields without breaking ABI

+ re-order fields
+ refresh the doc

Change-Id: Id60ec33934f6346e35c95fcdb4abbe1bc7b50acb
 2012-07-18 22:47:13 -07:00
James Zern
ce156afccf add missing ABI compatibility checks 
original change:
f7f16a2 add ABI compatibility check

Change-Id: I7cd6508f8d8e0d957a3d62ad52a117876fa5ec29
 2012-07-18 22:24:33 -07:00
Pascal Massimino
f7f16a2976 add ABI compatibility check 
minor revision shouldn't matter, we only check major revision number.
Bumped all version numbers so that incompatibility starts *now*

Change-Id: Id06c20f03039845ae4cfb3fd121807b931d67ee4
 2012-07-18 11:53:25 -07:00
James Zern
a3ec6225d5 mux.h: remove '* const' from function parameters 
makes the public interface consistent and more readable

Change-Id: I33f1d1c4ee752e353e4c10636a4df4e44d7cd03f
 2012-07-17 17:21:54 -07:00
James Zern
31426ebaec encode.h: remove '* const' from function parameters 
makes the public interface consistent and more readable

Change-Id: Ib93614e901e0af44bb64782357cfd9e724e050be
 2012-07-17 16:26:54 -07:00
James Zern
9838e5d5ff decode.h: remove '* const' from function parameters 
makes the public interface consistent and more readable

Change-Id: I067eb5ecc1094216ef6aecc65f636f69873de8f9
 2012-07-17 15:48:00 -07:00
James Zern
9ff00cae72 bump encoder/decoder versions 
those returned by WebPGet(Encoder|Decoder)Version()

Change-Id: I7584d04060ae7ca552f8f3aaf9df294d310a5be6
 2012-07-17 13:43:39 -07:00
Pascal Massimino
c2416c9b61 add lossless quick encoding functions to the public API 
New functions:
   WebPEncodeLosslessRGB()
   WebPEncodeLosslessBGR()
   WebPEncodeLosslessRGBA()
   WebPEncodeLosslessBGRA()

Change-Id: Id56da7569eee80c57de8f1f053fb87b217d33a4b
 2012-07-17 12:02:53 -07:00
James Zern
d5e5ad6356 move decode_vp8.h from webp/ to dec/ 
the functions contained in it are now private

Change-Id: Ief6c81b32ae3f6d97052edac625716e5b909e66e
 2012-07-16 22:12:59 -07:00
James Zern
8d3b04a25d Merge "header clean-up" into 0.2.0 2012-07-16 19:21:49 -07:00
James Zern
02201c35a0 Merge "remove one malloc() by making color_cache non dynamic" into 0.2.0 2012-07-16 19:21:05 -07:00
James Zern
d708ec1452 Merge "move MIN/MAX_HISTO_BITS to format_constants.h" into 0.2.0 2012-07-16 19:19:32 -07:00
James Zern
ab2da3e9fd Merge "add a malloc() check" into 0.2.0 2012-07-16 19:18:28 -07:00
Pascal Massimino
2d571bd89f add a malloc() check 
mostly a sanity measure to be future-proof

Change-Id: I55a81345819b2a8e939c98f0da883dc5c0cc16a2
 2012-07-16 19:15:00 -07:00
Pascal Massimino
7f0c178e46 remove one malloc() by making color_cache non dynamic 
Change-Id: I7c71a056f79a79bfacfe64a263f1eb8476c05456
 2012-07-16 19:13:58 -07:00
James Zern
6569cd7c88 Merge "VP8LFillBitWindow: use 64-bit path for msvc x64 builds" into 0.2.0 2012-07-16 19:13:30 -07:00
Pascal Massimino
23d34f3142 header clean-up 
remove unused VP8LHistogramRemove function
make HistogramEstimateBitsHeader static

Change-Id: I0dc6a6f4c41d3c5f55a8153cd7d710c9f84582a7
 2012-07-16 19:13:01 -07:00
Pascal Massimino
2a3ab6f925 move MIN/MAX_HISTO_BITS to format_constants.h 
(under the name MAX_HUFFMAN_BITS, since the specs read:
	int huffman_bits = ReadBits(3) + 2;
)

Change-Id: Ifc66576bbd8e48518d3d78a3f515f851cf1883dc
 2012-07-16 19:11:54 -07:00
Pascal Massimino
985d3da6c4 Merge "shuffle variables in HashChainFindCopy" into 0.2.0 2012-07-16 19:11:00 -07:00
Pascal Massimino
cdf885c67c shuffle variables in HashChainFindCopy 
might lead to observable speed-up on some compiler/arch

Change-Id: I6c89ec9cd4f490e7e22b790785f80097a47d27b5
 2012-07-16 19:08:59 -07:00
James Zern
7f4647eecb Merge "clarify the colorspace naming and byte ordering of decoded samples" into 0.2.0 2012-07-16 12:16:17 -07:00
Pascal Massimino
cbf69724d2 clarify the colorspace naming and byte ordering of decoded samples 
Change-Id: If5ac331bd1e45e7c959b5fa60248268ae2bbe861
 2012-07-16 12:09:51 -07:00
Urvang Joshi
857650c8fc Mux: Add WebPDataInit() and remove WebPImageInfo 
Change-Id: If661f7d198e284a103a53a451e9f74805119fcf9
 2012-07-16 11:12:05 +05:30
James Zern
ff771e7705 don't install webp/decode_vp8.h 
the VP8 decode functions do not need to be public; only
GetInfo/CheckSignature need to be marked extern as they're used by
libwebpmux.

Change-Id: Id9ab4d6166b0271cf5d04563c6dac1fcc84adbdc
 2012-07-14 21:23:03 -07:00
James Zern
596dff784d VP8LFillBitWindow: use 64-bit path for msvc x64 builds 
Change-Id: I14a3865f4091dd048e02abc99aa4e7f1e325e12a
 2012-07-14 13:20:26 -07:00
James Zern
f0b5defb0a bump versions 
lib - 0.1.99
libtool - 3.0.0 (interface changes)

Change-Id: Id52f8b8df5b941b15af6cb54b1cc05daf322179f
 2012-07-13 14:07:51 -07:00
James Zern
8130c4cc64 Merge "build: remove libwebpmux from default targets/config" 2012-07-13 11:33:52 -07:00
James Zern
05108f6ea0 Merge "More spec/code matching in mux:" 2012-07-12 23:53:58 -07:00
Urvang Joshi
6808e69db8 More spec/code matching in mux: 
- Match offsets, duration, width/height for frames/tiles and enforce
some constraints.
- Note that this also means using 'int's instead of 'uint32_t's for
16-bit and 24-bit fields.

Change-Id: If0b229ad9fce296372d961104aa36731a3b1304b
 2012-07-13 11:47:24 +05:30
James Zern
1d40a8bce8 configure: add pthread detection 
adds a --disable-threading option to prevent the check.
uses AX_PTHREAD from:
git://git.savannah.gnu.org/autoconf-archive.git
100644 blob d90de34d14    ax_pthread.m4

Change-Id: Icf3ad1ebcf052748bc341706effcc9ba02a259e4
 2012-07-12 16:27:29 -07:00