update CHANGELOG
- add a v1.0.0 entry to match the tag of the same name
- remove libvpx notes
BUG=aomedia:1988
Change-Id: Ieead418dd16d9cc4c7e64c65fa71357bf2d936b8
diff --git a/CHANGELOG b/CHANGELOG
index 7510dc6..d84aa02 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,631 +1,5 @@
-Next Release
- - Incompatible changes:
- The AV1 encoder's default keyframe interval changed to 128 from 9999.
- Support for armv6 was removed.
+2018-06-28 v1.0.0
+ AOMedia Codec Workgroup Approved version 1.0
2016-04-07 v0.1.0 "AOMedia Codec 1"
This release is the first Alliance for Open Media codec.
-2015-11-09 v1.5.0 "Javan Whistling Duck"
- This release improves upon the VP9 encoder and speeds up the encoding and
- decoding processes.
-
- - Upgrading:
- This release is ABI incompatible with 1.4.0. It drops deprecated VP8
- controls and adds a variety of VP9 controls for testing.
-
- The vpxenc utility now prefers VP9 by default.
-
- - Enhancements:
- Faster VP9 encoding and decoding
- Smaller library size by combining functions used by VP8 and VP9
-
- - Bug Fixes:
- A variety of fuzzing issues
-
-2015-04-03 v1.4.0 "Indian Runner Duck"
- This release includes significant improvements to the VP9 codec.
-
- - Upgrading:
- This release is ABI incompatible with 1.3.0. It drops the compatibility
- layer, requiring VPX_IMG_FMT_* instead of IMG_FMT_*, and adds several codec
- controls for VP9.
-
- - Enhancements:
- Faster VP9 encoding and decoding
- Multithreaded VP9 decoding (tile and frame-based)
- Multithreaded VP9 encoding - on by default
- YUV 4:2:2 and 4:4:4 support in VP9
- 10 and 12bit support in VP9
- 64bit ARM support by replacing ARM assembly with intrinsics
-
- - Bug Fixes:
- Fixes a VP9 bitstream issue in Profile 1. This only affected non-YUV 4:2:0
- files.
-
- - Known Issues:
- Frame Parallel decoding fails for segmented and non-420 files.
-
-2013-11-15 v1.3.0 "Forest"
- This release introduces the VP9 codec in a backward-compatible way.
- All existing users of VP8 can continue to use the library without
- modification. However, some VP8 options do not map to VP9 in the same manner.
-
- The VP9 encoder in this release is not feature complete. Users interested in
- the encoder are advised to use the git master branch and discuss issues on
- libvpx mailing lists.
-
- - Upgrading:
- This release is ABI and API compatible with Duclair (v1.0.0). Users
- of older releases should refer to the Upgrading notes in this document
- for that release.
-
- - Enhancements:
- Get rid of bashisms in the main build scripts
- Added usage info on command line options
- Add lossless compression mode
- Dll build of libvpx
- Add additional Mac OS X targets: 10.7, 10.8 and 10.9 (darwin11-13)
- Add option to disable documentation
- configure: add --enable-external-build support
- make: support V=1 as short form of verbose=yes
- configure: support mingw-w64
- configure: support hardfloat armv7 CHOSTS
- configure: add support for android x86
- Add estimated completion time to vpxenc
- Don't exit on decode errors in vpxenc
- vpxenc: support scaling prior to encoding
- vpxdec: support scaling output
- vpxenc: improve progress indicators with --skip
- msvs: Don't link to winmm.lib
- Add a new script for producing vcxproj files
- Produce Visual Studio 10 and 11 project files
- Produce Windows Phone project files
- msvs-build: use msbuild for vs >= 2005
- configure: default configure log to config.log
- Add encoding option --static-thresh
-
- - Speed:
- Miscellaneous speed optimizations for VP8 and VP9.
-
- - Quality:
- In general, quality is consistent with the Eider release.
-
- - Bug Fixes:
- This release represents approximately a year of engineering effort,
- and contains multiple bug fixes. Please refer to git history for details.
-
-
-2012-12-21 v1.2.0
- This release acts as a checkpoint for a large amount of internal refactoring
- and testing. It also contains a number of small bugfixes, so all users are
- encouraged to upgrade.
-
- - Upgrading:
- This release is ABI and API compatible with Duclair (v1.0.0). Users
- of older releases should refer to the Upgrading notes in this
- document for that release.
-
- - Enhancements:
- VP8 optimizations for MIPS dspr2
- vpxenc: add -quiet option
-
- - Speed:
- Encoder and decoder speed is consistent with the Eider release.
-
- - Quality:
- In general, quality is consistent with the Eider release.
-
- Minor tweaks to ARNR filtering
- Minor improvements to real time encoding with multiple temporal layers
-
- - Bug Fixes:
- Fixes multithreaded encoder race condition in loopfilter
- Fixes multi-resolution threaded encoding
- Fix potential encoder dead-lock after picture resize
-
-
-2012-05-09 v1.1.0 "Eider"
- This introduces a number of enhancements, mostly focused on real-time
- encoding. In addition, it fixes a decoder bug (first introduced in
- Duclair) so all users of that release are encouraged to upgrade.
-
- - Upgrading:
- This release is ABI and API compatible with Duclair (v1.0.0). Users
- of older releases should refer to the Upgrading notes in this
- document for that release.
-
- This release introduces a new temporal denoiser, controlled by the
- VP8E_SET_NOISE_SENSITIVITY control. The temporal denoiser does not
- currently take a strength parameter, so the control is effectively
- a boolean - zero (off) or non-zero (on). For compatibility with
- existing applications, the values accepted are the same as those
- for the spatial denoiser (0-6). The temporal denoiser is enabled
- by default, and the older spatial denoiser may be restored by
- configuring with --disable-temporal-denoising. The temporal denoiser
- is more computationally intensive than the spatial one.
-
- This release removes support for a legacy, decode only API that was
- supported, but deprecated, at the initial release of libvpx
- (v0.9.0). This is not expected to have any impact. If you are
- impacted, you can apply a reversion to commit 2bf8fb58 locally.
- Please update to the latest libvpx API if you are affected.
-
- - Enhancements:
- Adds a motion compensated temporal denoiser to the encoder, which
- gives higher quality than the older spatial denoiser. (See above
- for notes on upgrading).
-
- In addition, support for new compilers and platforms were added,
- including:
- improved support for XCode
- Android x86 NDK build
- OS/2 support
- SunCC support
-
- Changing resolution with vpx_codec_enc_config_set() is now
- supported. Previously, reinitializing the codec was required to
- change the input resolution.
-
- The vpxenc application has initial support for producing multiple
- encodes from the same input in one call. Resizing is not yet
- supported, but varying other codec parameters is. Use -- to
- delineate output streams. Options persist from one stream to the
- next.
-
- Also, the vpxenc application will now use a keyframe interval of
- 5 seconds by default. Use the --kf-max-dist option to override.
-
- - Speed:
- Decoder performance improved 2.5% versus Duclair. Encoder speed is
- consistent with Duclair for most material. Two pass encoding of
- slideshow-like material will see significant improvements.
-
- Large realtime encoding speed gains at a small quality expense are
- possible by configuring the on-the-fly bitpacking experiment with
- --enable-onthefly-bitpacking. Realtime encoder can be up to 13%
- faster (ARM) depending on the number of threads and bitrate
- settings. This technique sees constant gain over the 5-16 speed
- range. For VC style input the loss seen is up to 0.2dB. See commit
- 52cf4dca for further details.
-
- - Quality:
- On the whole, quality is consistent with the Duclair release. Some
- tweaks:
-
- Reduced blockiness in easy sections by applying a penalty to
- intra modes.
-
- Improved quality of static sections (like slideshows) with
- two pass encoding.
-
- Improved keyframe sizing with multiple temporal layers
-
- - Bug Fixes:
- Corrected alt-ref contribution to frame rate for visible updates
- to the alt-ref buffer. This affected applications making manual
- usage of the frame reference flags, or temporal layers.
-
- Additional constraints were added to disable multi-frame quality
- enhancement (MFQE) in sections of the frame where there is motion.
- (#392)
-
- Fixed corruption issues when vpx_codec_enc_config_set() was called
- with spatial resampling enabled.
-
- Fixed a decoder error introduced in Duclair where the segmentation
- map was not being reinitialized on keyframes (#378)
-
-
-2012-01-27 v1.0.0 "Duclair"
- Our fourth named release, focused on performance and features related to
- real-time encoding. It also fixes a decoder crash bug introduced in
- v0.9.7, so all users of that release are encouraged to upgrade.
-
- - Upgrading:
- This release is ABI incompatible with prior releases of libvpx, so the
- "major" version number has been bumped to 1. You must recompile your
- applications against the latest version of the libvpx headers. The
- API remains compatible, and this should not require code changes in most
- applications.
-
- - Enhancements:
- This release introduces several substantial new features to the encoder,
- of particular interest to real time streaming applications.
-
- Temporal scalability allows the encoder to produce a stream that can
- be decimated to different frame rates, with independent rate targetting
- for each substream.
-
- Multiframe quality enhancement postprocessing can make visual quality
- more consistent in the presence of frames that are substantially
- different quality than the surrounding frames, as in the temporal
- scalability case and in some forced keyframe scenarios.
-
- Multiple-resolution encoding support allows the encoding of the
- same content at different resolutions faster than encoding them
- separately.
-
- - Speed:
- Optimization targets for this release included the decoder and the real-
- time modes of the encoder. Decoder speed on x86 has improved 10.5% with
- this release. Encoder improvements followed a curve where speeds 1-3
- improved 4.0%-1.5%, speeds 4-8 improved <1%, and speeds 9-16 improved
- 1.5% to 10.5%, respectively. "Best" mode speed is consistent with the
- Cayuga release.
-
- - Quality:
- Encoder quality in the single stream case is consistent with the Cayuga
- release.
-
- - Bug Fixes:
- This release fixes an OOB read decoder crash bug present in v0.9.7
- related to the clamping of motion vectors in SPLITMV blocks. This
- behavior could be triggered by corrupt input or by starting
- decoding from a P-frame.
-
-
-2011-08-15 v0.9.7-p1 "Cayuga" patch 1
- This is an incremental bugfix release against Cayuga. All users of that
- release are strongly encouraged to upgrade.
-
- - Fix potential OOB reads (cdae03a)
-
- An unbounded out of bounds read was discovered when the
- decoder was requested to perform error concealment (new in
- Cayuga) given a frame with corrupt partition sizes.
-
- A bounded out of bounds read was discovered affecting all
- versions of libvpx. Given an multipartition input frame that
- is truncated between the mode/mv partition and the first
- residiual paritition (in the block of partition offsets), up
- to 3 extra bytes could have been read from the source buffer.
- The code will not take any action regardless of the contents
- of these undefined bytes, as the truncated buffer is detected
- immediately following the read based on the calculated
- starting position of the coefficient partition.
-
- - Fix potential error concealment crash when the very first frame
- is missing or corrupt (a609be5)
-
- - Fix significant artifacts in error concealment (a4c2211, 99d870a)
-
- - Revert 1-pass CBR rate control changes (e961317)
- Further testing showed this change produced undesirable visual
- artifacts, rolling back for now.
-
-
-2011-08-02 v0.9.7 "Cayuga"
- Our third named release, focused on a faster, higher quality, encoder.
-
- - Upgrading:
- This release is backwards compatible with Aylesbury (v0.9.5) and
- Bali (v0.9.6). Users of older releases should refer to the Upgrading
- notes in this document for that release.
-
- - Enhancements:
- Stereo 3D format support for vpxenc
- Runtime detection of available processor cores.
- Allow specifying --end-usage by enum name
- vpxdec: test for frame corruption
- vpxenc: add quantizer histogram display
- vpxenc: add rate histogram display
- Set VPX_FRAME_IS_DROPPABLE
- update configure for ios sdk 4.3
- Avoid text relocations in ARM vp8 decoder
- Generate a vpx.pc file for pkg-config.
- New ways of passing encoded data between encoder and decoder.
-
- - Speed:
- This release includes across-the-board speed improvements to the
- encoder. On x86, these measure at approximately 11.5% in Best mode,
- 21.5% in Good mode (speed 0), and 22.5% in Realtime mode (speed 6).
- On ARM Cortex A9 with Neon extensions, real-time encoding of video
- telephony content is 35% faster than Bali on single core and 48%
- faster on multi-core. On the NVidia Tegra2 platform, real time
- encoding is 40% faster than Bali.
-
- Decoder speed was not a priority for this release, but improved
- approximately 8.4% on x86.
-
- Reduce motion vector search on alt-ref frame.
- Encoder loopfilter running in its own thread
- Reworked loopfilter to precalculate more parameters
- SSE2/SSSE3 optimizations for build_predictors_mbuv{,_s}().
- Make hor UV predict ~2x faster (73 vs 132 cycles) using SSSE3.
- Removed redundant checks
- Reduced structure sizes
- utilize preload in ARMv6 MC/LPF/Copy routines
- ARM optimized quantization, dfct, variance, subtract
- Increase chrow row alignment to 16 bytes.
- disable trellis optimization for first pass
- Write SSSE3 sub-pixel filter function
- Improve SSE2 half-pixel filter funtions
- Add vp8_sub_pixel_variance16x8_ssse3 function
- Reduce unnecessary distortion computation
- Use diamond search to replace full search
- Preload reference area in sub-pixel motion search (real-time mode)
-
- - Quality:
- This release focused primarily on one-pass use cases, including
- video conferencing. Low latency data rate control was significantly
- improved, improving streamability over bandwidth constrained links.
- Added support for error concealment, allowing frames to maintain
- visual quality in the presence of substantial packet loss.
-
- Add rc_max_intra_bitrate_pct control
- Limit size of initial keyframe in one-pass.
- Improve framerate adaptation
- Improved 1-pass CBR rate control
- Improved KF insertion after fades to still.
- Improved key frame detection.
- Improved activity masking (lower PSNR impact for same SSIM boost)
- Improved interaction between GF and ARFs
- Adding error-concealment to the decoder.
- Adding support for independent partitions
- Adjusted rate-distortion constants
-
-
- - Bug Fixes:
- Removed firstpass motion map
- Fix parallel make install
- Fix multithreaded encoding for 1 MB wide frame
- Fixed iwalsh_neon build problems with RVDS4.1
- Fix semaphore emulation, spin-wait intrinsics on Windows
- Fix build with xcode4 and simplify GLOBAL.
- Mark ARM asm objects as allowing a non-executable stack.
- Fix vpxenc encoding incorrect webm file header on big endian
-
-
-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.
-
- - Upgrading:
- This release incorporates backwards-incompatible changes to the
- ivfenc and ivfdec tools. These tools are now called vpxenc and vpxdec.
-
- vpxdec
- * the -q (quiet) option has been removed, and replaced with
- -v (verbose). the output is quiet by default. Use -v to see
- the version number of the binary.
-
- * The default behavior is now to write output to a single file
- instead of individual frames. The -y option has been removed.
- Y4M output is the default.
-
- * For raw I420/YV12 output instead of Y4M, the --i420 or --yv12
- options must be specified.
-
- $ ivfdec -o OUTPUT INPUT
- $ vpxdec --i420 -o OUTPUT INPUT
-
- * If an output file is not specified, the default is to write
- Y4M to stdout. This makes piping more natural.
-
- $ ivfdec -y -o - INPUT | ...
- $ vpxdec INPUT | ...
-
- * The output file has additional flexibility for formatting the
- filename. It supports escape characters for constructing a
- filename from the width, height, and sequence number. This
- replaces the -p option. To get the equivalent:
-
- $ ivfdec -p frame INPUT
- $ vpxdec --i420 -o frame-%wx%h-%4.i420 INPUT
-
- vpxenc
- * The output file must be specified with -o, rather than as the
- last argument.
-
- $ ivfenc <options> INPUT OUTPUT
- $ vpxenc <options> -o OUTPUT INPUT
-
- * The output defaults to webm. To get IVF output, use the --ivf
- option.
-
- $ ivfenc <options> INPUT OUTPUT.ivf
- $ vpxenc <options> -o OUTPUT.ivf --ivf INPUT
-
-
- - Enhancements:
- ivfenc and ivfdec have been renamed to vpxenc, vpxdec.
- vpxdec supports .webm input
- vpxdec writes .y4m by default
- vpxenc writes .webm output by default
- vpxenc --psnr now shows the average/overall PSNR at the end
- ARM platforms now support runtime cpu detection
- vpxdec visualizations added for motion vectors, block modes, references
- vpxdec now silent by default
- vpxdec --progress shows frame-by-frame timing information
- vpxenc supports the distinction between --fps and --timebase
- NASM is now a supported assembler
- configure: enable PIC for shared libs by default
- configure: add --enable-small
- configure: support for ppc32-linux-gcc
- configure: support for sparc-solaris-gcc
-
- - Bugs:
- Improve handling of invalid frames
- Fix valgrind errors in the NEON loop filters.
- Fix loopfilter delta zero transitions
- Fix valgrind errors in vp8_sixtap_predict8x4_armv6().
- Build fixes for darwin-icc
-
- - Speed:
- 20-40% (average 28%) improvement in libvpx decoder speed,
- including:
- Rewrite vp8_short_walsh4x4_sse2()
- Optimizations on the loopfilters.
- Miscellaneous improvements for Atom
- Add 4-tap version of 2nd-pass ARMv6 MC filter.
- Improved multithread utilization
- Better instruction choices on x86
- reorder data to use wider instructions
- Update NEON wide idcts
- Make block access to frame buffer sequential
- Improved subset block search
- Bilinear subpixel optimizations for ssse3.
- Decrease memory footprint
-
- Encoder speed improvements (percentage gain not measured):
- Skip unnecessary search of identical frames
- Add SSE2 subtract functions
- Improve bounds checking in vp8_diamond_search_sadx4()
- Added vp8_fast_quantize_b_sse2
-
- - Quality:
- Over 7% overall PSNR improvement (6.3% SSIM) in "best" quality
- encoding mode, and up to 60% improvement on very noisy, still
- or slow moving source video
-
- Motion compensated temporal filter for Alt-Ref Noise Reduction
- Improved use of trellis quantization on 2nd order Y blocks
- Tune effect of motion on KF/GF boost in two pass
- Allow coefficient optimization for good quality speed 0.
- Improved control of active min quantizer for two pass.
- Enable ARFs for non-lagged compress
-
-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!
-
