hardware video encoding with gstreamer -- any recommendations?
M. Amirul Syahmi
amirulsyahmi at gmail.com
Wed Sep 19 08:03:46 PDT 2012
what processor you use? I suggest you to try to hw encode using vaapi.
On Wed, Sep 19, 2012 at 9:18 PM, Matt Pekar <mpekar at raineyelectronics.com>wrote:
> 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
>>
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>>
>
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