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2010-09-02 v0.9.2
- Enhancements:
Disable frame dropping by default
Improved multithreaded performance
Improved Force Key Frame Behaviour
Increased rate control buffer level precision
Fix bug in 1st pass motion compensation
ivfenc: correct fixed kf interval, --disable-kf
- Speed:
Changed above and left context data layout
Rework idct calling structure.
Removed unnecessary MB_MODE_INFO copies
x86: SSSE3 sixtap prediction
Reworked IDCT to include reconstruction (add) step
Swap alt/gold/new/last frame buffer ptrs instead of copying.
Improve SSE2 loopfilter functions
Change bitreader to use a larger window.
Avoid loopfilter reinitialization when possible
- Quality:
Normalize quantizer's zero bin and rounding factors
Add trellis quantization.
Make the quantizer exact.
Updates to ARNR filtering algorithm
Fix breakout thresh computation for golden & AltRef frames
Redo the forward 4x4 dct
Improve the accuracy of forward walsh-hadamard transform
Further adjustment of RD behaviour with Q and Zbin.
- Build System:
Allow linking of libs built with MinGW to MSVC
Fix target auto-detection on mingw32
Allow --cpu= to work for x86.
configure: pass original arguments through to make dist
Fix builds without runtime CPU detection
msvs: fix install of codec sources
msvs: Change devenv.com command line for better msys support
msvs: Add vs9 targets.
Add x86_64-linux-icc target
- Bugs:
Potential crashes on older MinGW builds
Fix two-pass framrate for Y4M input.
Fixed simple loop filter, other crashes on ARM v6
arm: fix missing dependency with --enable-shared
configure: support directories containing .o
Replace pinsrw (SSE) with MMX instructions
apple: include proper mach primatives
Fixed rate control bug with long key frame interval.
Fix DSO link errors on x86-64 when not using a version script
Fixed buffer selection for UV in AltRef filtering
2010-06-17 v0.9.1
- Enhancements:
* ivfenc/ivfdec now support YUV4MPEG2 input and pipe I/O
* Speed optimizations
- Bugfixes:
* Rate control
* Prevent out-of-bounds accesses on invalid data
- Build system updates:
* Detect toolchain to be used automatically for native builds
* Support building shared libraries
* Better autotools emulation (--prefix, --libdir, DESTDIR)
- Updated LICENSE
* http://webmproject.blogspot.com/2010/06/changes-to-webm-open-source-license.html
2010-05-18 v0.9.0
- Initial open source release. Welcome to WebM and VP8!
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