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Last modified 2023-10-16

Draft VP9 Bitstream and Decoding Process Specification

Interested parties are invited to review the current draft of the VP9Bitstream Specification.

Note carefully:

• The specification isnot final.
• The team has performed one level of review internally, and now seeks external review.
• We have compiled the syntax tables into an application, and verified thatArgon Design's test streams produce output identical tovpxenc.
• We are particularly interested in verification of the document's textual content.

Please direct commentary to thecodec-discuss mailing list. Note thatfirst-time posts by unsubscribed readers are queued for moderation. You canavoid moderation by subscribing first.

Download:vp9-bitstream-specification-v0.7-20170222-draft.pdf(2.37MB PDF)

Related Documents

• Draft: RTP Payload Format for VP9 Video

VP Codec ISO Media File Format Binding

• Version 1.0, 2017-03-27

VP9 Profiles and Levels

• VP9 Levels and Decoder Testing
• VP9 Coding Profiles

HDR10+ Metadata Handling

HDR10+ metadata can be specified in the form of ITU-T T.35 terminal codes. SeetheBlockAddID element in the WebM Container Guidelines. ATSC 2094-40/CTA-861.4define one of the possible ways to specify HDR10+ metadata.

Acquiring VP9 (libvpx)

As of 2013-06-17, VP9 encode and decode support ships in the masterbranch oflibvpx, and is enabled by default.

git clone https://chromium.googlesource.com/webm/libvpxcd libvpxgit co master    ## likely unnecessary./configuremake

Or consider an out-of-tree build, described inBuild Prerequisites.

VP9 encoder options are listed in the usage output forvpxenc, in thesection "VP9 Specific Options".

User-Contributed Pages

• VP9 Tips
• VP9 Known Issues

Product Support

Microsoft Edge

Microsoftannounced in April 2016 that the Edge browser will support VP9(and Opus).

WebRTC

VP9 in WebRTCbecame available in Google Chrome 48 (stable) inJanuary 2016, for both desktop and Android.

Google Chrome

VP9 decode support was first enabled by default in Google Chrome 29Dev channel (r206883) on 2013-06-26.

Mozilla Firefox

VP9 decode supportwas first added to Firefox Aurora ("pre-beta")nightly builds on 2013-12-06.

VLC

Experimental VP9 decode support was added to VLC inversion 2.1.2.

FFMpeg / Libav

• Search theFFMpeg codebase for recent libvpx-related commits
• Search theLibav codebase for recent libvpx-related commits