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 Readme for:  Development » Library » Graphics » libvpx.lha


Description: WebM VP8/VP9 Codec library
Download: libvpx.lha       (TIPS: Use the right click menu if your browser takes you back here all the time)
Size: 2Mb
Version: 1.5.0
Date: 01 Jan 16
Author: WebM project / Google Inc.
Submitter: Michael Trebilcock
Homepage: http://downloads.webmproject.org/releases/webm/index.html
Category: development/library/graphics
Replaces: development/library/graphics/libvpx.lha
License: Other
Distribute: yes
Min OS Version: 4.0
FileID: 9667
Comments: 0
Snapshots: 0
Downloads: 69  (Current version)
545  (Accumulated)
Votes: 2 (0/0)  (30 days/7 days)

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Newlib static and shared object port of libVPX, a freely available and
open-source video codec. Multithreading is not enabled in this port.

Changes (general):

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

  - Known Issues:
    Frame Parallel decoding fails for segmented and non-420 files.

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