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Update NEWS & README for next release V0.1.3
Update ChangeLog, NEWS & README file for next release V0.1.3
This commit is contained in:
Vikas Arora
parent
6215595cd1
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fac15ec78e
108
ChangeLog
108
ChangeLog
@ -1,4 +1,110 @@
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d3dc2d4 update ChangeLog
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6215595 Merge "add a -partition_limit option to limit the number of bits used by intra4x4"
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3814b76 Merge "reorganize chunk-parsing code"
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900286e add a -partition_limit option to limit the number of bits used by intra4x4
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cd12b4b add the missing cost for I4/I16 mode selection
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dfcc213 reorganize chunk-parsing code
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3cf2030 initialize pointers to function within VP8DspInit()
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d21b479 Merge "windows: add decode threading support"
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473ae95 fix hang on thread creation failure
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fccca42 windows: add decode threading support
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a31f843 Use the exact PNG_INCLUDES/PNG_LIBS when testing for -lpng
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ad9b45f Merge "Makefile.vc: rule maintenance"
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565a2ca Makefile.vc: rule maintenance
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2d0da68 makefile.unix: disable Wvla by default
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fc7815d multi-thread decoding: ~25-30% faster
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acd8ba4 io->teardown() was not always called upon error
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c85527b Merge "Makefile.vc: add DLL configs"
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e1e9be3 cosmetics: spelling/grammar in README and lib headers
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b4d0ef8 Makefile.vc: add DLL configs
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998754a remove unused nb_i4_ and nb_i16_ fields.
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9f01ce3 rename WebPDecBuffer::memory -> private_memory
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fb5d659 fix an overflow bug in LUT calculation
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d646d5c swig: add WebPDecodeARGB
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78aeed4 add missing WebPDecodeARGBInto() and switch ARGB4444 to RGBA4444 as was intended
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cd7c529 explicitly mark library functions as extern
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19db59f add support for RGB565, ARGB4444 and ARGB colorspace (decoder)
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c915fb2 encoder speed-up: hardcode special level values
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c558bda Rename and improve the API to retrieve decoded area
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bf599d7 Merge "makefile.unix: disable -Wvla by default"
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c9ea03d SSE2 version of strong filtering
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993af3e makefile.unix: disable -Wvla by default
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3827e1b Merge "examples: (windows/WIC) add alpha support"
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e291fae SSE2 functions for the fancy upsampler.
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a06bbe2 add WebPISetIOHooks() to set some custom hooks on the incremental decoder object.
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7643a6f Merge "makefile.unix: use uname to detect OSX environment"
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5142a0b export alpha channel (if present) when dumping to PGM format
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14d5731 makefile.unix: use uname to detect OSX environment
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0805706 examples: quiet warnings
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3cfe088 examples: (windows/WIC) add alpha support
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13ed94b add compile warning for variable-length-array
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5a18eb1 Merge "add Advanced Decoding Interface"
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5c4f27f add missing \n
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f4c4e41 80 cols fix
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d260310 add Advanced Decoding Interface
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bd2f65f sse2 version of the complex filter
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96ed9ce perform two idct transforms at a time when possible
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01af7b6 use aligned stored
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0e1d1fd Merge "Makefile.vc: add experimental target"
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2a1292a Makefile.vc: add experimental target
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23bf351 Enable decode SSE2 for Visual Studio
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131a4b7 dec/dsp_sse2: fix visual studio compile
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00d9d68 swig: file reorganization
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7fc7e0d Merge "swig/java: basic encode support"
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3be57b1 fix MSVC compile for WEBP_EXPERIMENTAL_FEATURES
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40a7e34 dec/dsp: disable sse2 for Visual Studio builds
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e4d540c add SSE2 code for transform
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54f2170 swig/java: basic encode support
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c5d4584 call function pointers instead of C-version
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ea43f04 Merge "configure: mingw32 targets: test for WIC support"
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a11009d SSE2 version of simple in-loop filtering
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42548da shave one unneeded filter-cache line
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31f9dc6 configure: mingw32 targets: test for WIC support
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1955969 Merge "split expression in two."
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415dbe4 split expression in two.
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e29072a configure: test for zlib only w/--enable-experimental
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b2b0090 Simplify Visual Studio ifdefs
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ca7a2fd Add error reporting from encoding failures.
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6c9405d Merge "Makefile.vc: require CFG with clean target"
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0424ecd Makefile.vc: require CFG with clean target
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003417c Enable SSE2 for Visual Studio builds
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af10db4 little speed up for VP8BitUpdate()
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e71418f more MSVC files to ignore
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46d9036 cosmetics
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edf59ab typo fix
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72229f5 Add support for x64 and SSE2 builds under Windows.
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92e5c6e VP8GetInfo() + WebPResetDecParams()
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416b7a6 raise the fixed-point precision for the rescaler
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aa87e4e fix alignment
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eb66670 disable WEBP_EXPERIMENTAL_FEATURES
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c5ae7f6 typo fix: USE_ => WEBP_
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d041efa swig: add libwebp.jar/libwebp_java_wrap.c
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f6fb387 add swig interface
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e927390 align buffer for double too
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842c009 fix -strong option
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d0a7038 Merge "cosmetics"
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fc0a02e fix the dichotomy loop
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38369c0 cosmetics
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8dfc4c6 factorize and unify GetAlpha() between the C and SSE2 version
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6d0e66c prepare experimentation with yuv444 / 422
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79cc49f add a --enable-experimental option to './configure'
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d757523 sse2 version of CollectHistogram()
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c1c728d add an extra #ifdef WEBP_EXPERIMENTAL_FEATURES to avoid 'unused variable' warning
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60c61d2 always call VP*EncDeleteAlpha() unconditionnally, for simplicity
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0f8c638 simply don't call WriteExtensions() if WEBP_EXPERIMENTAL_FEATURES is not defined
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47c661d rename swap -> swap_rb
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10d55bb move chunk[] declaration out of the for() loop
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517cec2 fix indentation
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f7d9e26 fix merge problems
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8fd42b3 add a stride 'a_stride' for the alpha plane
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b8dcbf2 fix alpha-plane copy and crop methods
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cdef89d fix some 'unused variable' warning
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fb29c26 SSE2 version of the fwd transform and the squared sum metric
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2ab4b72 EXPERIMENTAL: add support for alpha channel
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cfbf88a add SSE2 functions. ~2x faster encoding on average.
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e7ff3f9 merge two ITransforms together when applicable and change the TTransform to return the sum directly.
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ca55413 fix WebPIDecGetRGB() to accept any RGB(A) mode, not just MODE_RGB
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8aa50ef fix some 'man' typos
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d3f3bdd update ChangeLog
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d7e9a69 update contributor list
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261abb8 add a 'superclean' section
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276ae82 Remove files not mean to be in git, and update .gitignore
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8
NEWS
8
NEWS
@ -1,3 +1,11 @@
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- 8/25/11: version 0.1.3
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* Advanced decoding APIs.
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* On-the-fly cropping and rescaling of images.
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* SSE2 instructions for decoding performance optimizations on x86-64 platform.
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* Support Multi-threaded decoding.
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* 40% improvement in Decoding performance.
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* Add support for RGB565, RGBA4444 & ARGB image colorspace.
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- 3/25/11: version 0.1.2
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* Incremental decoding: picture can be decoded byte-by-byte if needs be.
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* lot of bug-fixes, consolidation and stabilization
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70
README
70
README
@ -322,6 +322,7 @@ is supplied. No decoding is involved when using it.
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A lower-level API is available from the header file <webp/decode_vp8.h>
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Incremental decoding API:
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=========================
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@ -365,6 +366,75 @@ WebPINewRGB() or WebPINewYUV().
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Please have a look at the src/webp/decode.h header for further details.
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Advanced Decoding API:
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=========================
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WebP decoding supports Advanced API to provide ability to have on-the-fly
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cropping and rescaling, something of great usefulness on memory-constraint
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environments like mobile phones. Basically, the memory usage will scale with
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the output's size, not the input's when one only need a quick preview or a
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zoomed in portion of an otherwise too-large picture. Some CPU can be saved
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too, incidentally.
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-------------------------------------- BEGIN PSEUDO EXAMPLE
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// A) Init a configuration object
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WebPDecoderConfig config;
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CHECK(WebPInitDecoderConfig(&config));
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// B) optional: retrieve the bitstream's features.
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CHECK(WebPGetFeatures(data, data_size, &config.input) == VP8_STATUS_OK);
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// C) Adjust 'config' options, if needed
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config.no_fancy = 1;
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config.options.use_scaling = 1;
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config.options.scaled_width = scaledWidth();
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config.options.scaled_height = scaledHeight();
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// etc.
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// D) Specify 'config' output options for specifying output colorspace.
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// Optionally the external image decode buffer can also be specified.
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config.output.colorspace = MODE_BGRA;
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// Optionally, the config.output can be pointed to an external buffer as
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// well for decoding the image. This externally supplied memory buffer
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// should be big enough to store the decoded picture.
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config.output.u.BGRA.rgba = (uint8_t*) memory_buffer;
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config.output.u.RGBA.stride = scanline_stride;
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config.output.u.RGBA.size = total_size_of_the_memory_buffer;
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config.output.is_external_memory = 1;
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// E) Decode the WebP image. There are two variants w.r.t decoding image.
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// The first one (E.1) decodes the full image and the second one (E.2) is
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// used to incrementally decode the image using small input buffers.
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// Any one of these steps can be used to decode the WebP image.
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// E.1) Decode full image.
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CHECK(WebPDecode(data, data_size, &config) == VP8_STATUS_OK);
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// E.2) Decode image incrementally.
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WebPIDecoder* const idec = WebPIDecode(NULL, NULL, &config);
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CHECK(idec != NULL);
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while (bytes_remaining > 0) {
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VP8StatusCode status = WebPIAppend(idec, input, bytes_read);
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if (status == VP8_STATUS_OK || status == VP8_STATUS_SUSPENDED) {
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bytes_remaining -= bytes_read;
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} else {
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break;
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}
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}
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WebPIDelete(idec);
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// F) Decoded image is now in config.output (and config.output.u.RGBA).
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// It can be saved, displayed or otherwise processed.
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// G) Reclaim memory allocated in config's object. It's safe to call
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// this function even if the memory is external and wasn't allocated
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// by WebPDecode().
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WebPFreeDecBuffer(&config.output);
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-------------------------------------- END PSEUDO EXAMPLE
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Bugs:
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=====
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