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vp8 [2020/05/23 01:49] beandog |
vp8 [2020/06/09 04:11] beandog |
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====== VP8 ====== | ====== VP8 ====== | ||
+ | * [[https://www.webmproject.org/docs/encoder-parameters/|VP8 Encode Parameter Guide]] | ||
* [[https://scholarworks.rit.edu/cgi/viewcontent.cgi?article=4188&context=theses|An Analysis of VP8, a new video codec for the web]] | * [[https://scholarworks.rit.edu/cgi/viewcontent.cgi?article=4188&context=theses|An Analysis of VP8, a new video codec for the web]] | ||
* [[http://wiki.webmproject.org/ffmpeg|webm wiki: FFmpeg VP8 Encoding Options]] | * [[http://wiki.webmproject.org/ffmpeg|webm wiki: FFmpeg VP8 Encoding Options]] | ||
* [[https://trac.ffmpeg.org/wiki/Encode/VP8|ffmpeg wiki: Encode VP8]] | * [[https://trac.ffmpeg.org/wiki/Encode/VP8|ffmpeg wiki: Encode VP8]] | ||
+ | * [[http://ffmpeg.org/ffmpeg-all.html#libvpx|ffmpeg libvpx documentation]] | ||
+ | |||
+ | ==== Encoding Quality ==== | ||
+ | |||
+ | With the defaults, vpxenc will create low quality encodes, its bitrate is too low. It will have to be bumped up to get some good quality. | ||
+ | |||
+ | When using ffmpeg, pass ''-b 0'' (bitrate 0) so that it doesn't limit bitrate. Also use a CRF. For very high quality encodes, I'd say around 6 to 8. | ||
+ | |||
+ | <code> | ||
+ | ffmpeg -i video.y4m -vcodec libvpx -crf 6 -b:v 0 -y video.mkv | ||
+ | </code> |