Takashi Iwai
a36af9e0f8
* New Features
+ New tuning mode AOM_TUNE_SSIMULACRA2 for the AOME_SET_TUNING
codec control (--tune=ssimulacra2) in all-intra mode.
The feature detection macro AOM_HAVE_TUNE_SSIMULACRA2,
if defined, indicates that AOM_TUNE_SSIMULACRA2 is available.
AOM_TUNE_SSIMULACRA2 was developed to maximize SSIMULACRA 2
scores.
+ New codec control AV1E_SET_SCREEN_CONTENT_DETECTION_MODE
(--screen-detection-mode).
This codec control helps select between two screen detection
modes:
Mode 1: standard (default)
Mode 2: anti-aliased text and graphics aware
+ New codec control AV1E_SET_ENABLE_ADAPTIVE_SHARPNESS
(--enable-adaptive-sharpness). When enabled, it modulates
sharpness based on frame QP, which helps mitigate blocking
artifacts in the low to medium quality range.
+ Added low complexity decode mode for 720p vertical videos.
+ ROI feature implemented for RTC: for delta QP, skip encoding,
and reference selection.
+ External scaling feature for SVC: allow downscaled images to
be passed into encoder for spatial layers without
reconfiguring it.
+ Allow per-frame calculation of PSNR (contribution from Meta).
- Compression Efficiency Improvements
+ Variance Boost is now enabled for tuning modes AOM_TUNE_IQ
and AOM_TUNE_SSIMULACRA2 at speeds 8 and 9 (2-5% SSIMULACRA 2
BD-Rate gains)
+ Several quality/time tradeoff improvements and bug fixes for
all intra mode speeds 8 and 9.
Up to 6.9% SSIMULACRA 2 BD-Rate gains for speed 8
Up to 2.2% SSIMULACRA 2 BD-Rate gains for speed 9
- Perceptual Quality Improvements
+ RTC: Visual quality improvements for screen content mode.
+ RTC: Visual quality improvements for video mode for
resolutions >= 720p.
- Speedups
+ Optimize intraBC search for better speed/efficiency tradeoffs
for all intra mode speeds >= 1
+ Optimize intraBC block hashing process
+ RTC Screen: speed feature added to speed 12 for ~2x speedup
on slide/scene changes, for resolutions >= 720p.
+ ML based speedup improvement on the partition pruning for
speed <= 2
- Other Improvements
+ Fixes for RPS (reference picture selection) for RTC: Based on
av1_discuss issue:
https://groups.google.com/a/aomedia.org/g/av1-discuss/c/sqFad980SsA
- Bug Fixes
+ b:421196988: all intra speed 8: overuse of palette mode
unnecessarily inflating file sizes
+ b:423804955: Improve quality for 4K Screencast
+ webrtc:388070060: Allow per-frame calculation of PSNR
+ b:433046392, b:432035817: Fix to SVC crash triggered with
Jitsi video conference app.
+ b:419622699: Fix integer overflow in update_buffer_level
+ b:407813259: Fix to update seq_params for number of layers
change
+ b:400885218: External scaling for AV1
+ b:391849810: High AV1 frame encode time on slide changes
+ b:399575647: Too aggressive QP backoff at scene changes
+ b:383306740: Quality degradation at horizontal scrolling
- Enable VMAF tuning
OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/libaom?expand=0&rev=46
5 lines
96 B
Plaintext
5 lines
96 B
Plaintext
name: libaom
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version: 3.13.1
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mtime: 1757110237
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commit: d772e334cc724105040382a977ebb10dfd393293
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