From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:60418 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933053AbeFTVLq (ORCPT ); Wed, 20 Jun 2018 17:11:46 -0400 Date: Wed, 20 Jun 2018 23:11:44 +0200 From: Pavel Machek To: Nicolas Dufresne Cc: linux-media@vger.kernel.org, sakari.ailus@linux.intel.com, niklas.soderlund@ragnatech.se, jerry.w.hu@intel.com, mario.limonciello@dell.com Subject: Re: Software-only image processing for Intel "complex" cameras Message-ID: <20180620211144.GA16945@amd> References: <20180620203838.GA13372@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="9amGYk9869ThD9tj" Content-Disposition: inline In-Reply-To: Sender: linux-media-owner@vger.kernel.org List-ID: --9amGYk9869ThD9tj Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi! > > On Nokia N900, I have similar problems as Intel IPU3 hardware. > >=20 > > Meeting notes say that pure software implementation is not fast > > enough, but that it may be useful for debugging. It would be also > > useful for me on N900, and probably useful for processing "raw" > > images > > from digital cameras. > >=20 > > There is sensor part, and memory-to-memory part, right? What is > > the format of data from the sensor part? What operations would be > > expensive on the CPU? If we did everthing on the CPU, what would be > > maximum resolution where we could still manage it in real time? >=20 > The IPU3 sensor produce a vendor specific form of bayer. If we manage > to implement support for this format, it would likely be done in > software. I don't think anyone can answer your other questions has no > one have ever implemented this, hence measure performance. I believe Intel has some estimates. What is the maximum resolution of camera in the current Dell systems? Thanks, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --9amGYk9869ThD9tj Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlsqwxAACgkQMOfwapXb+vKx+wCcCDf4R0kgu21QoKyRMJpuFxpf jQYAoIpPoj1A9Flm58ISapnLgLZpSa2F =eUKC -----END PGP SIGNATURE----- --9amGYk9869ThD9tj--