Opened 3 years ago

Closed 3 years ago

#11633 closed enhancement (fixed)

libvpx-1.8.0

Reported by: Bruce Dubbs Owned by: Bruce Dubbs
Priority: normal Milestone: 8.4
Component: BOOK Version: SVN
Severity: normal Keywords:
Cc:

Description

New minor version.

Change History (3)

comment:1 by Bruce Dubbs, 3 years ago

Owner: changed from blfs-book to Bruce Dubbs
Status: newassigned

comment:2 by Bruce Dubbs, 3 years ago

2019-01-31 v1.8.0

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.

comment:3 by Bruce Dubbs, 3 years ago

Resolution: fixed
Status: assignedclosed

Fixed at revision 21090.

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