Feature Request: GPU Utilization

[BroDubun]

Is there any way that handbrake could better utilize a GPU to speed up encoding times?

[sr55]

We already have support for the Intel QuickSync, and Nvidia NVEnc #259 and AMD VCE #697 are possible future candidates to be added.

Otherwise GPU's themselves are not good for video encoding acceleration. There are a few instances where OpenCL could in theory benefit, but our experience with it showed it to be more trouble than it's worth so we are not going to invest any time in that or accept any future patches for it.

[fireundubh]

GPUs themselves are not good for video encoding acceleration.

This depends on the GPU and the use case. For example, the GTX 10 series are Pascal GPUs, and the 1080 speeds up HEVC encoding by 10-30x in my experience. NVENC is already built into ffmpeg and supports x265, and I can achieve the same or similar default quality as libx265 with hevc_nvenc in far less time.

Some extra reading:

• Known limitations of NVENC
• CRF-like encoding with NVENC in StaxRip
• Advanced encoding options with HW acceleration

[Symbai]

Handbrake: 30 minutes
Converter which supports NVENC: 2 minutes

GPU not good for encoding? Devs seem to know it better...

[sr55]

Maybe you should read up on what NVEnc actually is before you make sarcastic comments like that ...

It's an ASIC hardware encoder, not a GPU encoder and as I already stated, we have an open ticket for it and will accept any valid patches for it.

Locking Topic since this is now a waste of time...