dany/libwebp
1
0
Fork 0
mirror of https://github.com/webmproject/libwebp.git synced 2024-12-26 13:48:21 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity
831 Commits 35 Branches 66 Tags 15 MiB
9838e5d5ff
Commit Graph

568 Commits

Author SHA1 Message Date
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
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
Pascal Massimino
b5e9067a28 fix some int <-> size_t mix for buffer sizes 
could have led to some negative overflow on 32bit arch
(if it was not for the "total_size == (size_t)total_size" test)

Change-Id: I7640340b605b9c674d30dd58a1e2144707299683
 2012-07-12 07:23:01 -07:00
James Zern
e41a759615 build: remove libwebpmux from default targets/config 
the extended file format is still under development and related
libs/binaries are not fit for release

configure:
--enable/disable-libwebpmux; default is disabled.

makefile.unix:
src/mux/libwebpmux.a and examples/webpmux must be explicitly specified

Makefile.vc:
$(DIRLIB)\libwebpmux.lib and $(DIRBIN)\webpmux.exe must be explicitly
specified

Change-Id: I8246746b256010dd2a2e4de58291222d7eaf0457
 2012-07-11 14:25:41 -07:00
Pascal Massimino
48b39eb17a fix underflow for very short bitstreams 
+ hardened the asserts

Change-Id: Ie798ef2f9d848c131f6f84a35ea28ef254822d1e
 2012-07-09 16:47:34 -07:00
James Zern
7e622984bb cosmetics: param alignment, manpage wording 
after eb6f9b8, c0e8859

Change-Id: I79bcea77d65eb6d1abf1156796996f3b9909b62b
 2012-07-07 10:37:26 -07:00
Urvang Joshi
c0e8859d81 Get rid of image_info_ from WebPChunk struct. 
The image_info_ was used only in GetImageCanvasWidthHeight(). So, now
we infer it from data there.
This removal fixes a bug: earlier, 'image_info' wasn't initialized in
the WebPMuxCreate() flow, and so the canvas width/height were being
calculated to be zero.

Also, a related refactoring: Combine CreateImageInfo() and
CreateDataFromImageInfo() into a single function CreateFrameTileData().

Change-Id: I7b0afb0d36dc6e13b9d6a1135fb027aa4e03716c
 2012-07-04 18:49:56 +05:30
Pascal Massimino
0fa844fb8f cosmetic fixes on assert and 'const' where applicable 
Change-Id: Iede15b8464be453e7d12929513ed82183921265c
 2012-07-03 05:50:36 -07:00
Pascal Massimino
7f22bd2596 check limit of width * height is 32 bits 
Update the RIFF-specs file too

Change-Id: I113a7e25da2f7a19c1344c1dc5d496127cfe2596
 2012-07-03 05:42:13 -07:00
pascal massimino
88a510ff53 Merge "fix big-endian VP8LWriteBits" 2012-07-02 14:38:32 -07:00
James Zern
f56a369ab0 fix big-endian VP8LWriteBits 
bits would be lost if n_bits was > 17

Change-Id: Id315d075075338a08e10c04faa91cab347a53591
 2012-07-02 14:30:41 -07:00
pascal massimino
4691407bb3 Merge changes If39ab7f5,I3658b5ae 
* changes:
  WebPMuxCreate() error handling:
  Fix a memleak in WebPMuxCreate()
 2012-07-02 01:46:17 -07:00
Vikas Arora
cca7c7b81b Fixed nit: 10 -> 10.f 
Change-Id: I0cdb096525460b27f3adcb9f802f6dc193d5f590
 2012-07-02 11:29:01 +05:30
Urvang Joshi
5d09a244b7 WebPMuxCreate() error handling: 
Directly return NULL if no allocation is done yet.

Change-Id: If39ab7f5a55833263d3372fa0a5d9b0a600cb9ed
 2012-07-02 11:20:09 +05:30
Urvang Joshi
777341c3d0 Fix a memleak in WebPMuxCreate() 
Change-Id: I3658b5ae487082aef28989eb8abc274c207fef0f
 2012-07-02 10:19:21 +05:30
James Zern
4c3975792b Merge "mark VP8{,L}{GetInfo,CheckSignature} as WEBP_EXTERN" 2012-06-29 10:31:26 -07:00
pascal massimino
e4e36cc6c6 Merge "Mux: Allow only some frames/tiles to have alpha." 2012-06-29 05:17:26 -07:00
pascal massimino
ad2aad3c21 Merge "WebP Decoding error handling:" 2012-06-29 05:15:55 -07:00
Urvang Joshi
97649c8f6b Mux: Allow only some frames/tiles to have alpha. 
And related const fixes.

Change-Id: I79f6f1b9f8c6faac8cc4ef24b58edff6d90de045
 2012-06-29 17:17:19 +05:30
Vikas Arora
f864be3b2c Lower the quality settings for Alpha encoding. 
Evaluated the impact of this change over 1000 image corpus.
The compression density is up (on average) by 1.2% and encoding time has
gone down considerably from 716 ms (per file) to 146 ms (per file)
(4.9X improvement in encoding time).

Change-Id: Ida562cc0bfe18c9d6f5f00873c95f8396b480eab
 2012-06-29 16:19:42 +05:30
Urvang Joshi
3ba81bbe8b WebP Decoding error handling: 
- Don't allow any extended chunks (except ALPH) without RIFF & VP8X
chunks.
- Also, don't allow VP8X without RIFF.

Change-Id: I1beba43e617ec637901aeeb93f2f484ec086a75d
 2012-06-29 14:32:21 +05:30
Pascal Massimino
fcc69923b9 add automatic YUVA/ARGB conversion during WebPEncode() 
Adds new methods WebPPictureARGBToYUVA() and WebPPictureYUVAToARGB()
Depending on the value of picture->use_argb_input,
the main call WebPEncode() will convert appropriately.
Note that both conversions are lossy, so it's recommended to:
* use YUVA input for lossy compression (picture->use_argb_input=0)
* use ARGB input for lossless compression (picture->use_argb_input=1)

Change-Id: I8269d607723ee8a1136b9f4999f7ff4e657bbb04
 2012-06-28 00:34:23 -07:00
Pascal Massimino
802e012a18 fix compilation in non-FANCY_UPSAMPLING mode 
Change-Id: Id0b1fad3a4888b6e9563a227412b2e6a656d9a2a
 2012-06-28 00:26:35 -07:00
Pascal Massimino
e012dfd90f make width/height coding match the spec 
* width/height in VP8X chunk is 24bit now
* Added some more constants #defines

Change-Id: I2f8ca7f965a247bccd341dd079ed2abf549c39d7
 2012-06-28 00:20:28 -07:00
James Zern
228d96a538 mark VP8{,L}{GetInfo,CheckSignature} as WEBP_EXTERN 
these functions are used by libwebpmux

Change-Id: Ifcb79e685f3a6b53007c0dc5f220737daba97d47
 2012-06-27 16:07:33 -07:00
Pascal Massimino
637a314f97 remove the now unused *KeepA variants 
Change-Id: I65217f3075e30bc9a7f38a49d09f01c9d7271d6a
 2012-06-27 10:00:48 -07:00
James Zern
b9ae4f0d88 cosmetics after mux changes b74ed6e, b494ad5 
Change-Id: I8f693b1ba2537de89bda1dfbcf3b95abd17e420a
 2012-06-22 14:30:01 -07:00
Urvang Joshi
b494ad5096 Mux: only allow adding frame/tiles at the end. 
Change-Id: I5d685628da8c8ac85144cee2e5808b30ec79fef9
 2012-06-22 11:18:18 -07:00