From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from prime.voidband.net (prime.voidband.net [199.247.17.104]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EDE481A5B84; Sun, 1 Feb 2026 20:21:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.247.17.104 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769977319; cv=none; b=sBrFdOXCz+q6CrnxXRwWTrX1e54NK5DzDyDmr/uAfx470djI9CZoSoNscx3KlhCxNUtstxn2tT8UufHneuqiYOxQ/nymxVWWqOgnck4uEA5Edfu3AaW+IX9pm2on12QEEiQnS3fhv/vETb9zZur5dxos071abWQYrVZQKG7Ujp8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769977319; c=relaxed/simple; bh=Lv/rBtArQ1oCid2HbiQEpqPuaLRWc7hDfY5VUiLigug=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=g03VOR9djxQyJ3CakQ+BT7Fg3riEF07RsFe4M8XDprpc8/bnetrbLi3xj4b/IxZljQPPVHwh0DvjsR+cqCv1z2bAGfYl3J7nbrZfcdFzmmNGf05BRR19VMbb8u/KqEtCt66LwcysxwY2BJg9uWTrLWULl3ZjdYyzl+wIVzQuSd4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=natalenko.name; spf=pass smtp.mailfrom=natalenko.name; dkim=pass (1024-bit key) header.d=natalenko.name header.i=@natalenko.name header.b=L0/mNo5r; arc=none smtp.client-ip=199.247.17.104 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=natalenko.name Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=natalenko.name Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=natalenko.name header.i=@natalenko.name header.b="L0/mNo5r" Received: from spock.localnet (unknown [212.20.115.26]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by prime.voidband.net (Postfix) with ESMTPSA id 24BFB635B040; Sun, 01 Feb 2026 21:15:09 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=natalenko.name; s=dkim-20170712; t=1769976909; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=Lv/rBtArQ1oCid2HbiQEpqPuaLRWc7hDfY5VUiLigug=; b=L0/mNo5raN4RNxaFSYBX9GOAbHpEjqORECT1ksIIkepglWv8Ln9xmRcdm30aBrfkPMgjsJ vW8h51q7hn/uZ+2siDfbkGovtUkzK4RLj6eT6oaOMNGDmeJaUxri5EkbS2RHWvNEgKyLfF mtNO+I3azahkJ8yFz2n8lF1XUYsmv58= From: Oleksandr Natalenko To: Laurent Pinchart Cc: Jarkko Sakkinen , linux-media@vger.kernel.org, jani.nikula@linux.intel.com, anisse@astier.eu, Mauro Carvalho Chehab , Hans Verkuil , Sakari Ailus , Jacopo Mondi , Ricardo Ribalda , open list Subject: Re: [RFC PATCH] media: Virtual camera driver Date: Sun, 01 Feb 2026 21:14:54 +0100 Message-ID: <12828248.O9o76ZdvQC@natalenko.name> In-Reply-To: <20260201200649.GW3374091@killaraus> References: <20260201133342.335680-1-jarkko@kernel.org> <20260201200649.GW3374091@killaraus> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="nextPart5961847.DvuYhMxLoT"; micalg="pgp-sha512"; protocol="application/pgp-signature" x-ms-reactions: disallow --nextPart5961847.DvuYhMxLoT Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8"; protected-headers="v1" From: Oleksandr Natalenko To: Laurent Pinchart Subject: Re: [RFC PATCH] media: Virtual camera driver Date: Sun, 01 Feb 2026 21:14:54 +0100 Message-ID: <12828248.O9o76ZdvQC@natalenko.name> In-Reply-To: <20260201200649.GW3374091@killaraus> MIME-Version: 1.0 Hello. On ned=C4=9Ble 1. =C3=BAnora 2026 21:06:49, st=C5=99edoevropsk=C3=BD standa= rdn=C3=AD =C4=8Das Laurent Pinchart wrote: > > There is a notable user base for v4l2-loopback. It is the defacto choice > > for streaming phone cams. >=20 > This will then likely face the same hurdles as v4l2-loopback, the main > one being that camera support should be upstreamed with proper drivers > instead of a closed-source userspace daemon. >=20 > For phone cameras, the way forward upstream is libcamera. Until kernel > drivers for ISPs are available, the soft ISP is a stop-gap solution. It > recently gained GPU acceleration support (with work to improve image > quality with additional algorithms ongoing). My use-case for v4l2loopback is to stream a webcam from one machine to anot= her (with the help of ffmpeg). Is this covered by something other than v4l2= loopback now? Thank you. =2D-=20 Oleksandr Natalenko, MSE --nextPart5961847.DvuYhMxLoT Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part. 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