From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mailout4.w2.samsung.com ([211.189.100.14]:55728 "EHLO usmailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756413Ab3H3Nb3 convert rfc822-to-8bit (ORCPT ); Fri, 30 Aug 2013 09:31:29 -0400 Received: from uscpsbgm1.samsung.com (u114.gpu85.samsung.co.kr [203.254.195.114]) by usmailout4.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MSC006QGIVPVA40@usmailout4.samsung.com> for linux-media@vger.kernel.org; Fri, 30 Aug 2013 09:31:27 -0400 (EDT) Date: Fri, 30 Aug 2013 10:31:23 -0300 From: Mauro Carvalho Chehab To: Oliver Schinagl Cc: Hans Verkuil , "media-workshop@linuxtv.org" , "linux-media@vger.kernel.org" Subject: Re: Agenda for the Edinburgh mini-summit Message-id: <20130830103123.0bb6a256@samsung.com> In-reply-to: <52209C41.8040402@schinagl.nl> References: <201308301501.25164.hverkuil@xs4all.nl> <52209C41.8040402@schinagl.nl> MIME-version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 8BIT Sender: linux-media-owner@vger.kernel.org List-ID: Em Fri, 30 Aug 2013 15:21:05 +0200 Oliver Schinagl escreveu: > On 30-08-13 15:01, Hans Verkuil wrote: > > OK, I know, we don't even know yet when the mini-summit will be held but I thought > > I'd just start this thread to collect input for the agenda. > > > > I have these topics (and I *know* that I am forgetting a few): > > > > - Discuss ideas/use-cases for a property-based API. An initial discussion > > appeared in this thread: > > > > http://permalink.gmane.org/gmane.linux.drivers.video-input-infrastructure/65195 > > > > - What is needed to share i2c video transmitters between drm and v4l? Hopefully > > we will know more after the upcoming LPC. > > > > - Decide on how v4l2 support libraries should be organized. There is code for > > handling raw-to-sliced VBI decoding, ALSA looping, finding associated > > video/alsa nodes and for TV frequency tables. We should decide how that should > > be organized into libraries and how they should be documented. The first two > > aren't libraries at the moment, but I think they should be. The last two are > > libraries but they aren't installed. Some work is also being done on an improved > > version of the 'associating nodes' library that uses the MC if available. > > > > - Define the interaction between selection API, ENUM_FRAMESIZES and S_FMT. See > > this thread for all the nasty details: > > > > http://www.spinics.net/lists/linux-media/msg65137.html > > > > Feel free to add suggestions to this list. >>From my side, I'd like to discuss about a better integration between DVB and V4L2, including starting using the media controller API on DVB side too. Btw, it would be great if we could get a status about the media controller API usage on ALSA. I'm planning to work at such integration soon. > What about a hardware accelerated decoding API/framework? Is there a > proper framework for this at all? I see the broadcom module is still in > staging and may never come out of it, but how are other video decoding > engines handled that don't have cameras or displays. > > Reason for asking is that we from linux-sunxi have made some positive > progress in Reverse engineering the video decoder blob of the Allwinner > A10 and this knowledge will need a kernel side driver in some framework. > I looked at the exynos video decoders and googling for linux-media > hardware accelerated decoding doesn't yield much either. > > Anyway, just a thought; if you think it's the wrong place for it to be > discussed, that's ok :) Well, the mem2mem V4L2 devices should provide all that would be needed for accelerated encoders/decoders. If not, then feel free to propose extensions to fit your needs. Regards, Mauro > > oliver > > > > Note: my email availability will be limited in the next three weeks, especially > > next week, as I am travelling a lot. > > > > Regards, > > > > Hans > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-media" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-media" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Cheers, Mauro