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  • #290

Closed
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Opened Nov 20, 2020 by U. Artie Eoff@ullysses.a.eoffReporter

encoder: h265: don't deprecate low-delay-b property

In !284 (merged), the low-delay-b property was deprecated. Some platforms can support both P-frames or low-delay-b, but the user has no way to enable low-delay-b on those platforms. It would be useful if the user can force low-delay-b to be used even when the platform supports P-frame. In many cases, low-delay-b can produce better quality.

Perhaps low-delay-b can be a tri-state property (auto, on, off), where auto is the default. On platforms that only support low-delay-b, then auto would turn it on. On platforms that support P-frames, auto would turn it off.

The other option is to keep it a true|false property where the default is true since all platforms should be able to support low-delay-b and generally produces better result.

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Reference: gstreamer/gstreamer-vaapi#290