Update CHANGELOG for v0.9.6 (Bali) release
Change-Id: I7d1e7db1866d829f6d4c6638d1c20e99959cc9a3
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+2011-03-07 v0.9.6 "Bali"
+ Our second named release, focused on a faster, higher quality, encoder.
+
+ - Upgrading:
+ This release is backwards compatible with Aylesbury (v0.9.5). Users
+ of older releases should refer to the Upgrading notes in this
+ document for that release.
+
+ - Enhancements:
+ vpxenc --psnr shows a summary when encode completes
+ --tune=ssim option to enable activity masking
+ improved postproc visualizations for development
+ updated support for Apple iOS to SDK 4.2
+ query decoder to determine which reference frames were updated
+ implemented error tracking in the decoder
+ fix pipe support on windows
+
+ - Speed:
+ Primary focus was on good quality mode, speed 0. Average improvement
+ on x86 about 40%, up to 100% on user-generated content at that speed.
+ Best quality mode speed improved 35%, and realtime speed 10-20%. This
+ release also saw significant improvement in realtime encoding speed
+ on ARM platforms.
+
+ Improved encoder threading
+ Dont pick encoder filter level when loopfilter is disabled.
+ Avoid double copying of key frames into alt and golden buffer
+ FDCT optimizations.
+ x86 sse2 temporal filter
+ SSSE3 version of fast quantizer
+ vp8_rd_pick_best_mbsegmentation code restructure
+ Adjusted breakout RD for SPLITMV
+ Changed segmentation check order
+ Improved rd_pick_intra4x4block
+ Adds armv6 optimized variance calculation
+ ARMv6 optimized sad16x16
+ ARMv6 optimized half pixel variance calculations
+ Full search SAD function optimization in SSE4.1
+ Improve MV prediction accuracy to achieve performance gain
+ Improve MV prediction in vp8_pick_inter_mode() for speed>3
+
+ - Quality:
+ Best quality mode improved PSNR 6.3%, and SSIM 6.1%. This release
+ also includes support for "activity masking," which greatly improves
+ SSIM at the expense of PSNR. For now, this feature is available with
+ the --tune=ssim option. Further experimentation in this area
+ is ongoing. This release also introduces a new rate control mode
+ called "CQ," which changes the allocation of bits within a clip to
+ the sections where they will have the most visual impact.
+
+ Tuning for the more exact quantizer.
+ Relax rate control for last few frames
+ CQ Mode
+ Limit key frame quantizer for forced key frames.
+ KF/GF Pulsing
+ Add simple version of activity masking.
+ make rdmult adaptive for intra in quantizer RDO
+ cap the best quantizer for 2nd order DC
+ change the threshold of DC check for encode breakout
+
+ - Bug Fixes:
+ Fix crash on Sparc Solaris.
+ Fix counter of fixed keyframe distance
+ ARNR filter pointer update bug fix
+ Fixed use of motion percentage in KF/GF group calc
+ Changed condition for using RD in Intra Mode
+ Fix encoder real-time only configuration.
+ Fix ARM encoder crash with multiple token partitions
+ Fixed bug first cluster timecode of webm file is wrong.
+ Fixed various encoder bugs with odd-sized images
+ vp8e_get_preview fixed when spatial resampling enabled
+ quantizer: fix assertion in fast quantizer path
+ Allocate source buffers to be multiples of 16
+ Fix for manual Golden frame frequency
+ Fix drastic undershoot in long form content
+
+
2010-10-28 v0.9.5 "Aylesbury"
Our first named release, focused on a faster decoder, and a better encoder.
