+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:
+ 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:
+ 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:
+ 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 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.
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
+ be decimated to different frame rates, with independent rate targeting
for each substream.
Multiframe quality enhancement postprocessing can make visual quality
projects / libvpx / blobdiff