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diff --git a/media/libvpx/libvpx/CHANGELOG b/media/libvpx/libvpx/CHANGELOG new file mode 100644 index 0000000000..21070785ed --- /dev/null +++ b/media/libvpx/libvpx/CHANGELOG @@ -0,0 +1,929 @@ +20yy-mm-dd v1.14.0 "V Duck" + This release drops support for old C compilers, such as Visual Studio 2012 + and older, that disallow mixing variable declarations and statements (a C99 + feature). + +2023-09-29 v1.13.1 "Ugly Duckling" + This release contains two security related fixes. One each for VP8 and VP9. + + - Upgrading: + This release is ABI compatible with the previous release. + + - Bug fixes: + https://crbug.com/1486441 (CVE-2023-5217) + Fix to a crash related to VP9 encoding (#1642, CVE-2023-6349) + +2023-01-31 v1.13.0 "Ugly Duckling" + This release includes more Neon and AVX2 optimizations, adds a new codec + control to set per frame QP, upgrades GoogleTest to v1.12.1, and includes + numerous bug fixes. + + - Upgrading: + This release is ABI incompatible with the previous release. + + New codec control VP9E_SET_QUANTIZER_ONE_PASS to set per frame QP. + + GoogleTest is upgraded to v1.12.1. + + .clang-format is upgraded to clang-format-11. + + VPX_EXT_RATECTRL_ABI_VERSION was bumped due to incompatible changes to the + feature of using external rate control models for vp9. + + - Enhancement: + Numerous improvements on Neon optimizations. + Numerous improvements on AVX2 optimizations. + Additional ARM targets added for Visual Studio. + + - Bug fixes: + Fix to calculating internal stats when frame dropped. + Fix to segfault for external resize test in vp9. + Fix to build system with replacing egrep with grep -E. + Fix to a few bugs with external RTC rate control library. + Fix to make SVC work with VBR. + Fix to key frame setting in VP9 external RC. + Fix to -Wimplicit-int (Clang 16). + Fix to VP8 external RC for buffer levels. + Fix to VP8 external RC for dynamic update of layers. + Fix to VP9 auto level. + Fix to off-by-one error of max w/h in validate_config. + Fix to make SVC work for Profile 1. + +2022-06-17 v1.12.0 "Torrent Duck" + This release adds optimizations for Loongarch, adds support for vp8 in the + real-time rate control library, upgrades GoogleTest to v1.11.0, updates + libwebm to libwebm-1.0.0.28-20-g206d268, and includes numerous bug fixes. + + - Upgrading: + This release is ABI compatible with the previous release. + + vp8 support in the real-time rate control library. + New codec control VP8E_SET_RTC_EXTERNAL_RATECTRL is added. + + Configure support for darwin21 is added. + + GoogleTest is upgraded to v1.11.0. + + libwebm is updated to libwebm-1.0.0.28-20-g206d268. + + Allow SimpleEncode environment to take target level as input to match + the level conformance in vp9. + + - Enhancement: + Numerous improvements on checking memory allocations. + Optimizations for Loongarch. + Code clean-up. + + - Bug fixes: + Fix to a crash related to {vp8/vp9}_set_roi_map. + Fix to compiling failure with -Wformat-nonliteral. + Fix to integer overflow with vp9 with high resolution content. + Fix to AddNoiseTest failure with ARMv7. + Fix to libvpx Null-dereference READ in vp8. + +2021-09-27 v1.11.0 "Smew Duck" + This maintenance release adds support for VBR mode in VP9 rate control + interface, new codec controls to get quantization parameters and loop filter + levels, and includes several improvements to NEON and numerous bug fixes. + + - Upgrading: + This release is ABI incompatible with the previous release. + New codec control is added to get quantization parameters and loop filter + levels. + + VBR mode is supported in VP9 rate control library. + + - Enhancement: + Numerous improvements for Neon optimizations. + Code clean-up and refactoring. + Calculation of rd multiplier is changed with BDRATE gains. + + - Bug fixes: + Fix to overflow on duration. + Fix to several instances of -Wunused-but-set-variable. + Fix to avoid chroma resampling for 420mpeg2 input. + Fix to overflow in calc_iframe_target_size. + Fix to disallow skipping transform and quantization. + Fix some -Wsign-compare warnings in simple_encode. + Fix input file path in simple_encode_test. + Fix valid range for under/over_shoot pct. + +2021-03-09 v1.10.0 "Ruddy Duck" + This maintenance release adds support for darwin20 and new codec controls, as + well as numerous bug fixes. + + - Upgrading: + This release is ABI incompatible with the previous release. + New codec control is added to disable loopfilter for VP9. + + New encoder control is added to disable feature to increase Q on overshoot + detection for CBR. + + Configure support for darwin20 is added. + + New codec control is added for VP9 rate control. The control ID of this + interface is VP9E_SET_EXTERNAL_RATE_CONTROL. To make VP9 use a customized + external rate control model, users will have to implement each callback + function in vpx_rc_funcs_t and register them using libvpx API + vpx_codec_control_() with the control ID. + + - Enhancement: + Use -std=gnu++11 instead of -std=c++11 for c++ files. + + - Bug fixes: + Override assembler with --as option of configure for MSVS. + Fix several compilation issues with gcc 4.8.5. + Fix to resetting rate control for temporal layers. + Fix to the rate control stats of SVC example encoder when number of spatial + layers is 1. + Fix to reusing motion vectors from the base spatial layer in SVC. + 2 pass related flags removed from SVC example encoder. + +2020-07-29 v1.9.0 "Quacking Duck" + This release adds support for NV12, a separate library for rate control, as + well as incremental improvements. + + - Upgrading: + This release is ABI compatible with the previous release. + NV12 support is added to this release. + A new interface is added for VP9 rate control. The new library libvp9rc.a + must be linked by applications. + Googletest is updated to v1.10.0. + simple_encode.cc is compiled into a new library libsimple_encode.a with + CONFIG_RATE_CTRL. + + - Enhancement: + Various changes to improve VP9 SVC, rate control, quality and speed to real + time encoding. + + - Bug fixes: + Fix key frame update refresh simulcast flexible svc. + Fix to disable_16x16part speed feature for real time encoding. + Fix some signed integer overflows for VP9 rate control. + Fix initialization of delta_q_uv. + Fix condition in regulate_q for cyclic refresh. + Various fixes to dynamic resizing for VP9 SVC. + +2019-12-09 v1.8.2 "Pekin Duck" + This release collects incremental improvements to many aspects of the library. + + - Upgrading: + This release is ABI compatible with the previous release. + ARCH_* defines have been removed in favor of VPX_ARCH_*. + +2019-07-15 v1.8.1 "Orpington Duck" + This release collects incremental improvements to many aspects of the library. + + - Upgrading: + This release is ABI incompatible with the previous release. + VP8E_SET_CPUUSED now accepts values up to 9 for vp9. + VPX_CTRL_VP9E_SET_MAX_INTER_BITRATE_PCT had a spelling fix (was VP8E). + The --sdk-path option has been removed. If you were using it to build for + Android please read build/make/Android.mk for alternatives. + All PPC optimizations have been disabled: + https://bugs.chromium.org/p/webm/issues/detail?id=1522. + + - Enhancements: + Various changes to improve encoder rate control, quality and speed + for practically every use case. + + - Bug fixes: + vp9-rtc: Fix color artifacts for speed >= 8. + +2019-01-31 v1.8.0 "Northern Shoveler Duck" + This release focused on encoding performance for realtime and VOD use cases. + + - Upgrading: + This release is ABI incompatible with the previous release. This adds and + improves several vp9 controls. Most are related to SVC: + VP9E_SET_SVC_FRAME_DROP_LAYER: + - Frame dropping in SVC. + VP9E_SET_SVC_INTER_LAYER_PRED: + - Inter-layer prediction in SVC. + VP9E_SET_SVC_GF_TEMPORAL_REF: + - Enable long term temporal reference in SVC. + VP9E_SET_SVC_REF_FRAME_CONFIG/VP9E_GET_SVC_REF_FRAME_CONFIG: + - Extend and improve this control for better flexibility in setting SVC + pattern dynamically. + VP9E_SET_POSTENCODE_DROP: + - Allow for post-encode frame dropping (applies to non-SVC too). + VP9E_SET_SVC_SPATIAL_LAYER_SYNC: + - Enable spatial layer sync frames. + VP9E_SET_SVC_LAYER_ID: + - Extend api to specify temporal id for each spatial layers. + VP9E_SET_ROI_MAP: + - Extend Region of Interest functionality to VP9. + + - Enhancements: + 2 pass vp9 encoding has improved substantially. When using --auto-alt-ref=6, + we see approximately 8% for VBR and 10% for CQ. When using --auto-alt-ref=1, + the gains are approximately 4% for VBR and 5% for CQ. + + For real-time encoding, speed 7 has improved by ~5-10%. Encodes targeted at + screen sharing have improved when the content changes significantly (slide + sharing) or scrolls. There is a new speed 9 setting for mobile devices which + is about 10-20% faster than speed 8. + + - Bug fixes: + VP9 denoiser issue. + VP9 partition issue for 1080p. + VP9 rate control improvments. + Postprocessing Multi Frame Quality Enhancement (MFQE) issue. + VP8 multithread decoder issues. + A variety of fuzzing issues. + +2018-01-04 v1.7.0 "Mandarin Duck" + This release focused on high bit depth performance (10/12 bit) and vp9 + encoding improvements. + + - Upgrading: + This release is ABI incompatible due to new vp9 encoder features. + + Frame parallel decoding for vp9 has been removed. + + - Enhancements: + vp9 encoding supports additional threads with --row-mt. This can be greater + than the number of tiles. + + Two new vp9 encoder options have been added: + --corpus-complexity + --tune-content=film + + Additional tooling for respecting the vp9 "level" profiles has been added. + + - Bug fixes: + A variety of fuzzing issues. + vp8 threading fix for ARM. + Codec control VP9_SET_SKIP_LOOP_FILTER fixed. + Reject invalid multi resolution configurations. + +2017-01-09 v1.6.1 "Long Tailed Duck" + This release improves upon the VP9 encoder and speeds up the encoding and + decoding processes. + + - Upgrading: + This release is ABI compatible with 1.6.0. + + - Enhancements: + Faster VP9 encoding and decoding. + High bit depth builds now provide similar speed for 8 bit encode and decode + for x86 targets. Other platforms and higher bit depth improvements are in + progress. + + - Bug Fixes: + A variety of fuzzing issues. + +2016-07-20 v1.6.0 "Khaki Campbell Duck" + This release improves upon the VP9 encoder and speeds up the encoding and + decoding processes. + + - Upgrading: + This release is ABI incompatible with 1.5.0 due to a new 'color_range' enum + in vpx_image and some minor changes to the VP8_COMP structure. + + The default key frame interval for VP9 has changed from 128 to 9999. + + - Enhancement: + A core focus has been performance for low end Intel processors. SSSE3 + instructions such as 'pshufb' have been avoided and instructions have been + reordered to better accommodate the more constrained pipelines. + + As a result, devices based on Celeron processors have seen substantial + decoding improvements. From Indian Runner Duck to Javan Whistling Duck, + decoding speed improved between 10 and 30%. Between Javan Whistling Duck + and Khaki Campbell Duck, it improved another 10 to 15%. + + While Celeron benefited most, Core-i5 also improved 5% and 10% between the + respective releases. + + Realtime performance for WebRTC for both speed and quality has received a + lot of attention. + + - Bug Fixes: + A number of fuzzing issues, found variously by Mozilla, Chromium and others, + have been fixed and we strongly recommend updating. + +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 targeting + 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! + |