[{"id":34562,"web_url":"https://patchwork.libcamera.org/comment/34562/","msgid":"<4520e751-338b-447d-b7a1-4db5e89f4aa3@ideasonboard.com>","date":"2025-06-19T11:07:12","subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","submitter":{"id":216,"url":"https://patchwork.libcamera.org/api/people/216/","name":"Barnabás Pőcze","email":"barnabas.pocze@ideasonboard.com"},"content":"Hi\n\n2025. 06. 19. 12:05 keltezéssel, Naushir Patuck írta:\n> From: David Plowman \n> \n> Add a FrameWallClock control that reports the same moment as the\n> frame's SensorTimestamp, but in wallclock units.\n> \n> Signed-off-by: David Plowman \n> Reviewed-by: Kieran Bingham \n> Reviewed-by: Naushir Patuck \n> Reviewed-by: Laurent Pinchart \n> Signed-off-by: Naushir Patuck \n> ---\n> src/libcamera/control_ids_core.yaml | 19 ++++++++++++++++---\n> 1 file changed, 16 insertions(+), 3 deletions(-)\n> \n> diff --git a/src/libcamera/control_ids_core.yaml b/src/libcamera/control_ids_core.yaml\n> index aa7448645880..028919ef3d3e 100644\n> --- a/src/libcamera/control_ids_core.yaml\n> +++ b/src/libcamera/control_ids_core.yaml\n> @@ -1,6 +1,4 @@\n> -# SPDX-License-Identifier: LGPL-2.1-or-later\n> -#\n> -# Copyright (C) 2019, Google Inc.\n> +\n> #\n> %YAML 1.1\n> ---\n> @@ -1268,4 +1266,19 @@ controls:\n> description: |\n> Enable or disable the debug metadata.\n> \n> + - FrameWallClock:\n> + type: int64_t\n> + direction: out\n> + description: |\n> + This timestamp corresponds to the same moment in time as the\n> + SensorTimestamp, but is represented as a wall clock time as measured by\n> + the CLOCK_REALTIME clock.\n\n`SensorTimestamp` is in nanoseconds, but based on the last patch, this is in microseconds.\nThis should be clarified, or ideally, the two should use the same unit. Or am I missing\nsomething?\n\n\nRegards,\nBarnabás Pőcze\n\n> +\n> + Being a wall clock measurement, it can be used to synchronise timing\n> + across different devices.\n> +\n> + \\sa SensorTimestamp\n> +\n> + The FrameWallClock control can only be returned in metadata.\n> +\n> ...","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 56AB4C3237\n\tfor ;\n\tThu, 19 Jun 2025 11:07:18 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 0D7C468DE3;\n\tThu, 19 Jun 2025 13:07:18 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 6485668DDB\n\tfor ;\n\tThu, 19 Jun 2025 13:07:17 +0200 (CEST)","from [192.168.33.22] (185.221.143.107.nat.pool.zt.hu\n\t[185.221.143.107])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 827B42EC;\n\tThu, 19 Jun 2025 13:07:03 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"LYF3Fe6n\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1750331223;\n\tbh=014a63lLAAbYcU7yVKrSk7MJ7gg/bkY+Lt12JIr3VYE=;\n\th=Date:Subject:To:Cc:References:From:In-Reply-To:From;\n\tb=LYF3Fe6nlFLVb/VReF/D0Q1APIFSwGLjJe21JtDz7ufFRYZ8F791MzEy4kiR3rVqy\n\te1e+jdcAt58lMhiC1qv/DAS0HgA2CmXXF1Ca1DAYdYcwtJuTepf73AJwPZtNvFGvxi\n\tGGveyeqkJQGnInRCOb9gK5G7f8ZRSULR4s1FI4kY=","Message-ID":"<4520e751-338b-447d-b7a1-4db5e89f4aa3@ideasonboard.com>","Date":"Thu, 19 Jun 2025 13:07:12 +0200","MIME-Version":"1.0","User-Agent":"Mozilla Thunderbird","Subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","To":"Naushir Patuck ,\n\tlibcamera-devel@lists.libcamera.org","Cc":"kieran.bingham@ideasonboard.com,\n\tDavid Plowman ,\n\tLaurent Pinchart ","References":"<20250619100857.124809-1-naush@raspberrypi.com>\n\t<20250619100857.124809-2-naush@raspberrypi.com>","From":"=?utf-8?q?Barnab=C3=A1s_P=C5=91cze?= ","Content-Language":"en-US, hu-HU","In-Reply-To":"<20250619100857.124809-2-naush@raspberrypi.com>","Content-Type":"text/plain; charset=UTF-8; format=flowed","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":34563,"web_url":"https://patchwork.libcamera.org/comment/34563/","msgid":"<175033129825.4005407.8363152140141235501@ping.linuxembedded.co.uk>","date":"2025-06-19T11:08:18","subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"Quoting Naushir Patuck (2025-06-19 11:05:53)\n> From: David Plowman \n> \n> Add a FrameWallClock control that reports the same moment as the\n> frame's SensorTimestamp, but in wallclock units.\n> \n> Signed-off-by: David Plowman \n> Reviewed-by: Kieran Bingham \n> Reviewed-by: Naushir Patuck \n> Reviewed-by: Laurent Pinchart \n> Signed-off-by: Naushir Patuck \n> ---\n> src/libcamera/control_ids_core.yaml | 19 ++++++++++++++++---\n> 1 file changed, 16 insertions(+), 3 deletions(-)\n> \n> diff --git a/src/libcamera/control_ids_core.yaml b/src/libcamera/control_ids_core.yaml\n> index aa7448645880..028919ef3d3e 100644\n> --- a/src/libcamera/control_ids_core.yaml\n> +++ b/src/libcamera/control_ids_core.yaml\n> @@ -1,6 +1,4 @@\n> -# SPDX-License-Identifier: LGPL-2.1-or-later\n> -#\n> -# Copyright (C) 2019, Google Inc.\n> +\n\nARGH.\n\nAnd of course only after merging do I notice this change ...\n\nHow come the copyrights are removed here. I don't think that was\nintentional - but I'm also not sure if this was accurate or correct now?\n\n--\nKieran\n\n\n> #\n> %YAML 1.1\n> ---\n> @@ -1268,4 +1266,19 @@ controls:\n> description: |\n> Enable or disable the debug metadata.\n> \n> + - FrameWallClock:\n> + type: int64_t\n> + direction: out\n> + description: |\n> + This timestamp corresponds to the same moment in time as the\n> + SensorTimestamp, but is represented as a wall clock time as measured by\n> + the CLOCK_REALTIME clock.\n> +\n> + Being a wall clock measurement, it can be used to synchronise timing\n> + across different devices.\n> +\n> + \\sa SensorTimestamp\n> +\n> + The FrameWallClock control can only be returned in metadata.\n> +\n> ...\n> -- \n> 2.43.0\n>","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 17229C3237\n\tfor ;\n\tThu, 19 Jun 2025 11:08:24 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id C602568DE3;\n\tThu, 19 Jun 2025 13:08:23 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 7A60368DDB\n\tfor ;\n\tThu, 19 Jun 2025 13:08:21 +0200 (CEST)","from pendragon.ideasonboard.com\n\t(cpc89244-aztw30-2-0-cust6594.18-1.cable.virginm.net [86.31.185.195])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id D0A512EC;\n\tThu, 19 Jun 2025 13:08:07 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"UsUJtCdF\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1750331287;\n\tbh=dqZPjbE5GKnLHbrXaq9Xe49ebe6c/QJebCC+R7FUkaE=;\n\th=In-Reply-To:References:Subject:From:Cc:To:Date:From;\n\tb=UsUJtCdFIUSYgvsAx8h6J1fQjgwS8H+jE+P0IziqTw4bc4Ywwl0J3yMu0QPSDeHi3\n\tYklrR9f58PcwanSjBntupSggtQOIwHUxTCBbALaEnpsq0GRgIruHRvYDxoTf9WAdMx\n\tUxcvMgGvPPlV9dkFoqB9w/YFvZfZVY68VaeEHSP0=","Content-Type":"text/plain; charset=\"utf-8\"","MIME-Version":"1.0","Content-Transfer-Encoding":"quoted-printable","In-Reply-To":"<20250619100857.124809-2-naush@raspberrypi.com>","References":"<20250619100857.124809-1-naush@raspberrypi.com>\n\t<20250619100857.124809-2-naush@raspberrypi.com>","Subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","From":"Kieran Bingham ","Cc":"David Plowman ,\n\tNaushir Patuck ,\n\tLaurent Pinchart ","To":"Naushir Patuck ,\n\tlibcamera-devel@lists.libcamera.org","Date":"Thu, 19 Jun 2025 12:08:18 +0100","Message-ID":"<175033129825.4005407.8363152140141235501@ping.linuxembedded.co.uk>","User-Agent":"alot/0.9.1","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":34567,"web_url":"https://patchwork.libcamera.org/comment/34567/","msgid":"","date":"2025-06-19T11:37:40","subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","submitter":{"id":34,"url":"https://patchwork.libcamera.org/api/people/34/","name":"Naushir Patuck","email":"naush@raspberrypi.com"},"content":"On Thu, 19 Jun 2025 at 12:08, Kieran Bingham\n wrote:\n>\n> Quoting Naushir Patuck (2025-06-19 11:05:53)\n> > From: David Plowman \n> >\n> > Add a FrameWallClock control that reports the same moment as the\n> > frame's SensorTimestamp, but in wallclock units.\n> >\n> > Signed-off-by: David Plowman \n> > Reviewed-by: Kieran Bingham \n> > Reviewed-by: Naushir Patuck \n> > Reviewed-by: Laurent Pinchart \n> > Signed-off-by: Naushir Patuck \n> > ---\n> > src/libcamera/control_ids_core.yaml | 19 ++++++++++++++++---\n> > 1 file changed, 16 insertions(+), 3 deletions(-)\n> >\n> > diff --git a/src/libcamera/control_ids_core.yaml b/src/libcamera/control_ids_core.yaml\n> > index aa7448645880..028919ef3d3e 100644\n> > --- a/src/libcamera/control_ids_core.yaml\n> > +++ b/src/libcamera/control_ids_core.yaml\n> > @@ -1,6 +1,4 @@\n> > -# SPDX-License-Identifier: LGPL-2.1-or-later\n> > -#\n> > -# Copyright (C) 2019, Google Inc.\n> > +\n>\n> ARGH.\n>\n> And of course only after merging do I notice this change ...\n>\n> How come the copyrights are removed here. I don't think that was\n> intentional - but I'm also not sure if this was accurate or correct now?\n\nGroan, I missed that. :( I can send a correction!\n\n>\n> --\n> Kieran\n>\n>\n> > #\n> > %YAML 1.1\n> > ---\n> > @@ -1268,4 +1266,19 @@ controls:\n> > description: |\n> > Enable or disable the debug metadata.\n> >\n> > + - FrameWallClock:\n> > + type: int64_t\n> > + direction: out\n> > + description: |\n> > + This timestamp corresponds to the same moment in time as the\n> > + SensorTimestamp, but is represented as a wall clock time as measured by\n> > + the CLOCK_REALTIME clock.\n> > +\n> > + Being a wall clock measurement, it can be used to synchronise timing\n> > + across different devices.\n> > +\n> > + \\sa SensorTimestamp\n> > +\n> > + The FrameWallClock control can only be returned in metadata.\n> > +\n> > ...\n> > --\n> > 2.43.0\n> >","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id EEF1AC3237\n\tfor ;\n\tThu, 19 Jun 2025 11:38:19 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 1775A68DDD;\n\tThu, 19 Jun 2025 13:38:19 +0200 (CEST)","from mail-ua1-x92b.google.com (mail-ua1-x92b.google.com\n\t[IPv6:2607:f8b0:4864:20::92b])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 7C7D268DDB\n\tfor ;\n\tThu, 19 Jun 2025 13:38:17 +0200 (CEST)","by mail-ua1-x92b.google.com with SMTP id\n\ta1e0cc1a2514c-87ec6fb9cb9so25931241.2\n\tfor ;\n\tThu, 19 Jun 2025 04:38:17 -0700 (PDT)"],"Authentication-Results":"lancelot.ideasonboard.com; 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Thu, 19 Jun 2025\n\t04:38:16 -0700 (PDT)","MIME-Version":"1.0","References":"<20250619100857.124809-1-naush@raspberrypi.com>\n\t<20250619100857.124809-2-naush@raspberrypi.com>\n\t<175033129825.4005407.8363152140141235501@ping.linuxembedded.co.uk>","In-Reply-To":"<175033129825.4005407.8363152140141235501@ping.linuxembedded.co.uk>","From":"Naushir Patuck ","Date":"Thu, 19 Jun 2025 12:37:40 +0100","X-Gm-Features":"Ac12FXzJOwPcSBKO__r0MhkYuMbqj4-bCc2kXHZ_JJHAbzFiPbNG5nYZjgFH0k4","Message-ID":"","Subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","To":"Kieran Bingham ","Cc":"libcamera-devel@lists.libcamera.org, \n\tDavid Plowman , \n\tLaurent Pinchart ","Content-Type":"text/plain; charset=\"UTF-8\"","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":34568,"web_url":"https://patchwork.libcamera.org/comment/34568/","msgid":"<175033361724.4005407.350433754891699391@ping.linuxembedded.co.uk>","date":"2025-06-19T11:46:57","subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"Quoting Naushir Patuck (2025-06-19 12:37:40)\n> On Thu, 19 Jun 2025 at 12:08, Kieran Bingham\n> wrote:\n> >\n> > Quoting Naushir Patuck (2025-06-19 11:05:53)\n> > > From: David Plowman \n> > >\n> > > Add a FrameWallClock control that reports the same moment as the\n> > > frame's SensorTimestamp, but in wallclock units.\n> > >\n> > > Signed-off-by: David Plowman \n> > > Reviewed-by: Kieran Bingham \n> > > Reviewed-by: Naushir Patuck \n> > > Reviewed-by: Laurent Pinchart \n> > > Signed-off-by: Naushir Patuck \n> > > ---\n> > > src/libcamera/control_ids_core.yaml | 19 ++++++++++++++++---\n> > > 1 file changed, 16 insertions(+), 3 deletions(-)\n> > >\n> > > diff --git a/src/libcamera/control_ids_core.yaml b/src/libcamera/control_ids_core.yaml\n> > > index aa7448645880..028919ef3d3e 100644\n> > > --- a/src/libcamera/control_ids_core.yaml\n> > > +++ b/src/libcamera/control_ids_core.yaml\n> > > @@ -1,6 +1,4 @@\n> > > -# SPDX-License-Identifier: LGPL-2.1-or-later\n> > > -#\n> > > -# Copyright (C) 2019, Google Inc.\n> > > +\n> >\n> > ARGH.\n> >\n> > And of course only after merging do I notice this change ...\n> >\n> > How come the copyrights are removed here. I don't think that was\n> > intentional - but I'm also not sure if this was accurate or correct now?\n> \n> Groan, I missed that. :( I can send a correction!\n\nSorry, Already did! - I should have added you on cc.\n\nhttps://patchwork.libcamera.org/patch/23606/\n\n> \n> >\n> > --\n> > Kieran\n> >\n> >\n> > > #\n> > > %YAML 1.1\n> > > ---\n> > > @@ -1268,4 +1266,19 @@ controls:\n> > > description: |\n> > > Enable or disable the debug metadata.\n> > >\n> > > + - FrameWallClock:\n> > > + type: int64_t\n> > > + direction: out\n> > > + description: |\n> > > + This timestamp corresponds to the same moment in time as the\n> > > + SensorTimestamp, but is represented as a wall clock time as measured by\n> > > + the CLOCK_REALTIME clock.\n> > > +\n> > > + Being a wall clock measurement, it can be used to synchronise timing\n> > > + across different devices.\n> > > +\n> > > + \\sa SensorTimestamp\n> > > +\n> > > + The FrameWallClock control can only be returned in metadata.\n> > > +\n> > > ...\n> > > --\n> > > 2.43.0\n> > >","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id E2A8CC3237\n\tfor ;\n\tThu, 19 Jun 2025 11:47:01 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 9160568DE3;\n\tThu, 19 Jun 2025 13:47:01 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id E90F668DDB\n\tfor ;\n\tThu, 19 Jun 2025 13:46:59 +0200 (CEST)","from pendragon.ideasonboard.com\n\t(cpc89244-aztw30-2-0-cust6594.18-1.cable.virginm.net [86.31.185.195])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 35DA0107;\n\tThu, 19 Jun 2025 13:46:46 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"qpu1VH0f\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1750333606;\n\tbh=IphkdkqtJYUJG3fAy4gw5LlzhCj8GHVaGwULpy76ij4=;\n\th=In-Reply-To:References:Subject:From:Cc:To:Date:From;\n\tb=qpu1VH0fbQEfdbd7LJTq8K662OjFNwq54Xiu/eGyRXZ+/DosbJ2YMfnfh7gadr4fp\n\t7io+RUcRdCi4/77lae11Tp8VU+/OdaDooELA3XhGFpNApeiBbNIx4KSXeZBfFfEa3p\n\tz5q7vPgFsI7T6vVQ5UhpohQWSXitgU0FL5Rz6h+w=","Content-Type":"text/plain; charset=\"utf-8\"","MIME-Version":"1.0","Content-Transfer-Encoding":"quoted-printable","In-Reply-To":"","References":"<20250619100857.124809-1-naush@raspberrypi.com>\n\t<20250619100857.124809-2-naush@raspberrypi.com>\n\t<175033129825.4005407.8363152140141235501@ping.linuxembedded.co.uk>\n\t","Subject":"Re: [PATCH 1/4] controls: Add FrameWallClock control","From":"Kieran Bingham ","Cc":"libcamera-devel@lists.libcamera.org,\n\tDavid Plowman ,\n\tLaurent Pinchart ","To":"Naushir Patuck ","Date":"Thu, 19 Jun 2025 12:46:57 +0100","Message-ID":"<175033361724.4005407.350433754891699391@ping.linuxembedded.co.uk>","User-Agent":"alot/0.9.1","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]