Changes between Version 3 and Version 4 of Encode/AV1


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Timestamp:
Jun 3, 2018, 6:01:29 PM (8 years ago)
Author:
slhck
Comment:

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  • Encode/AV1

    v3 v4  
    33[[PageOutline(2, Contents)]]
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    5 `libaom-av1` is the AOMedia video encoder for AV1, an open source & royalty-free video codec. `libaom-av1` can save about 30% bitrate compared to VP9 and H.265 / HEVC while retaining the same visual quality.
     5`libaom-av1` is the AOMedia video encoder for [https://en.wikipedia.org/wiki/AV1 AV1], an open source & royalty-free video codec. `libaom-av1` can save about 30% bitrate compared to VP9 and H.265 / HEVC, and about 50% over H.264, while retaining the same visual quality.
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    77To install FFmpeg with support for `libaom-av1`, look at the [https://ffmpeg.org/trac/ffmpeg/wiki/CompilationGuide Compilation Guides] and compile FFmpeg with the {{{--enable-libaom}}} option.
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    109libaom offers the following rate-control modes, which determine the quality and file size obtained:
    1110
    1211- 1-pass average bitrate
    13 - 2-pass average bitrate
    1412- Constant quality
    1513
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    4442
    4543`-cpu-used` sets how efficient the compression will be. Default is 1. Lower values mean slower encoding with better quality, and vice-versa.
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     45=== More Info ===
     46
     47More info about AV1 can be found here:
     48
     49* [https://nwgat.ninja/test-driving-aomedias-av1-codec/ Nwgat's AOMedia's AV1 Codec Overview]