hardware video encoding with gstreamer -- any recommendations?

[Matt Pekar]

Thanks Florent, that seems to be a very good summary of the state of things.

We came across a card from Leadtek, the WinFast PxVC1100, and it does
appear to have a Linux SDK that is accessible with some appsrc/appsink
work.  Doesn't seem to be in production anymore though.  There's also the
Matrox CompressHD.

We've been using MJPEG successfully at lower resolutions.  I'll revisit
x264 and see if that dmabuf video has something we might put to use.

On Mon, Sep 17, 2012 at 3:57 PM, Florent <fthiery at gmail.com> wrote:

> I have been having luck with the decklink but the only reason I am using
>> it is because it does sdi.
>>
>
> If i'm not mistaken, decklink captures, doesn't encode.
>
> Hardware accelerated encoding just isn't really possible on gstreamer
> (yet), except on the embedded space (TI only, see
> http://gstconf.ubicast.tv/videos/gstreamer-and-dmabuf/ for an update on
> using rob's gst-ducati <https://github.com/robclark/gst-ducati>).
>
> I believe the nearest way of doing hw encode is using Intel Sandy/Ivy
> Bridge using vaapi (see https://gitorious.org/vaapi/gstreamer-vaapi), but
> so far, only decoding is upstream. Encoding might come in the future though
> (some protoype work already started
> https://gitorious.org/vaapi/gstreamer-vaapi/merge_requests/5).
>
> Intel seems to be the only vendor interested in integrating these
> hardware-accelerated encoding features on Linux.
>
> If you don't have space constraints, i suggest you look into
> low-compression codecs (jpegenc, ffenc_mjpeg, ffenc_mpeg4) since they are
> light enough for high quality capture. As for live encoding for streaming
> purposes, x264enc should be okay up to 720p on modern hardware.
>
> Florent
>
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>
>
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