Changes between Version 9 and Version 10 of Encode/VP9

Timestamp:

Dec 28, 2017, 11:37:11 AM (6 months ago)

Author:

slhck

Comment:

info on compression efficiency; add relevant paper

Encode/VP9

@@ -3 +3 @@
 [[PageOutline(2, Contents)]]
 
-libvpx-vp9 is the VP9 video encoder for [http://www.webmproject.org/about/ WebM], an open, royalty-free media file format. This guide is an attempt to summarize the most important options for creating video with libvpx-vp9.
+`libvpx-vp9` is the VP9 video encoder for [http://www.webmproject.org/about/ WebM], an open, royalty-free media file format. `libvpx-vp9` can save about 20–50% bitrate compared to `libx264` (the default [[H.264]] encoder), while retaining the same visual quality.
 
 To install FFmpeg with support for libvpx-vp9, look at the [https://ffmpeg.org/trac/ffmpeg/wiki/CompilationGuide Compilation Guides] and compile FFmpeg with the {{{--enable-libvpx}}} option. Note that for 10-bit encoding, you need to set the `--enable-vp9-highbitdepth` configuration option.
 
-Note that the default audio encoder for WebM is libopus, but if it is not available then libvorbis will be used instead.
+Note that the default audio encoder for WebM is `libopus`, but if it is not available `libvorbis`  will be used instead.
 
 VP9 offers [https://developers.google.com/media/vp9/bitrate-modes/ different rate control modes], which determine the quality and file size:
@@ -131 +131 @@
 * [https://developers.google.com/media/vp9/ Google VP9 Guide]
 * [https://sites.google.com/a/webmproject.org/wiki/ffmpeg/vp9-encoding-guide VP9 Encoding Guide]
+* [https://medium.com/netflix-techblog/a-large-scale-comparison-of-x264-x265-and-libvpx-a-sneak-peek-2e81e88f8b0f Netflix Tech Blog — A Large-Scale Comparison of x264, x265, and libvpx] ([https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9971/997116/A-large-scale-video-codec-comparison-of-x264-x265-and/10.1117/12.2238495.short?SSO=1 link to paper])
+