[FFmpeg-devel] [PATCH v2 3/3] avcodec/cuvid: introduce a ringbuffer to reattach additional data

[Devin Heitmueller]

On Tue, Dec 3, 2024 at 9:57 AM Hendrik Leppkes <h.leppkes at gmail.com> wrote:
> The real question is, why are you using cuviddec instead of nvdec?
> side data would already pass through natively with nvdec, and other
> hwaccel-based decoders.

I suspect there could be benefits if your workload involves alot of
decoding and the GPU only has a single nvdec unit on it.  Even if it's
less efficient to do it with CUDA, getting a graphics card with lots
of CUDA units could very well be cheaper than a card with multiple
nvdec fixed units on it (each of which might only be able to do 10-15
decodes depending on codec/resolution/framerate).

Devin

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