[{"id":23697,"web_url":"https://patchwork.libcamera.org/comment/23697/","msgid":"<165662865229.1516045.2845084106728968151@Monstersaurus>","date":"2022-06-30T22:37:32","subject":"Re: [libcamera-devel] [PATCH v3 09/23] libcamera:\n\tcamera_sensor_properties: Add sensor delays","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"Quoting Jacopo Mondi via libcamera-devel (2022-06-30 14:38:48)\n> Add to the camera sensor properties a map of control identifiers to\n> their latencies.\n> \n> Some camera sensor controls take a variable number of frames to take\n> effect, hence they should be set in advance. The newly introduced map\n> records that information as a property of the camera sensor class.\n> \n> Signed-off-by: Jacopo Mondi \n> ---\n> .../internal/camera_sensor_properties.h | 4 ++\n> .../camera_sensor_properties.cpp | 40 +++++++++++++++++++\n> 2 files changed, 44 insertions(+)\n> \n> diff --git a/include/libcamera/internal/camera_sensor_properties.h b/include/libcamera/internal/camera_sensor_properties.h\n> index 1ee3cb994106..2404b0674323 100644\n> --- a/include/libcamera/internal/camera_sensor_properties.h\n> +++ b/include/libcamera/internal/camera_sensor_properties.h\n> @@ -9,6 +9,7 @@\n> \n> #include \n> #include \n> +#include \n> \n> #include \n> #include \n> @@ -16,10 +17,13 @@\n> namespace libcamera {\n> \n> struct CameraSensorProperties {\n> + using SensorDelays = std::unordered_map;\n> +\n> static const CameraSensorProperties *get(const std::string &sensor);\n> \n> Size unitCellSize;\n> std::map testPatternModes;\n> + SensorDelays sensorDelays;\n> };\n> \n> } /* namespace libcamera */\n> diff --git a/src/libcamera/camera_sensor/camera_sensor_properties.cpp b/src/libcamera/camera_sensor/camera_sensor_properties.cpp\n> index e5f27f06eb1d..4b5ab716abe2 100644\n> --- a/src/libcamera/camera_sensor/camera_sensor_properties.cpp\n> +++ b/src/libcamera/camera_sensor/camera_sensor_properties.cpp\n> @@ -13,6 +13,8 @@\n> \n> #include \n> \n> +#include \n> +\n> /**\n> * \\file camera_sensor_properties.h\n> * \\brief Database of camera sensor properties\n> @@ -41,6 +43,18 @@ LOG_DEFINE_CATEGORY(CameraSensorProperties)\n> * \\brief Map that associates the TestPattern control value with the indexes of\n> * the corresponding sensor test pattern modes as returned by\n> * V4L2_CID_TEST_PATTERN.\n> + *\n> + * \\var CameraSensorProperties::sensorDelays\n> + * \\brief Map that associates control identifiers with their latencies,\n> + * expressed in frame periods.\n> + */\n> +\n> +/**\n> + * \\typedef CameraSensorProperties::SensorDelays\n> + * \\brief Camera sensor controls delays\n> + *\n> + * Type to represent a map of camera sensor controls associated with their\n> + * latencies, expressed in frame periods.\n> */\n> \n\nI wonder if defining a 'common' struct of sensor delays here could ease\nreferencing it in the default case.\n\nstatic const SensorDelays commonDelays = {\n { &controls::internal::FrameDuration, 2 },\n { &controls::internal::ExposureTime, 2 },\n { &controls::internal::AnalogueGain, 1 },\n};\n\nOr ideally, if we knew 'all ccs' cameras or such used these delays we\ncould have a better name ?\n\ndefaultDelays ?\n\nI know I commented on this before saying if we don't have the numbers we\nshould leave the the delays as zero, but I think there I meant on an\nindividual entry.\n\nBut perhaps now I see this I'm changing my mind too - and leaning\ntowards a default set can easily be defined and referenced, and\noverridden in the case of a difference?\n\n\n> /**\n> @@ -69,6 +83,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> * 9: \"Resolution Pattern\"\n> */\n> },\n> + .sensorDelays = { },\n\nthen\n\t\t\t.sensorDelays = &commonDelays;\n?\n\nThough this is the hi846, so we should identify what the delays really\nare there.\n\n> } },\n> { \"imx219\", {\n> .unitCellSize = { 1120, 1120 },\n> @@ -79,6 +94,11 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> { controls::draft::TestPatternModeColorBarsFadeToGray, 3 },\n> { controls::draft::TestPatternModePn9, 4 },\n> },\n> + .sensorDelays = {\n> + { &controls::internal::FrameDuration, 2 },\n> + { &controls::internal::ExposureTime, 2 },\n> + { &controls::internal::AnalogueGain, 1 },\n> + },\n\nBut this one could be: \n\t\t\t.sensorDelays = &commonDelays;\n\n> } },\n> { \"imx258\", {\n> .unitCellSize = { 1120, 1120 },\n> @@ -89,18 +109,26 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> { controls::draft::TestPatternModeColorBarsFadeToGray, 3 },\n> { controls::draft::TestPatternModePn9, 4 },\n> },\n> + .sensorDelays = { },\n> } },\n> { \"imx290\", {\n> .unitCellSize = { 2900, 2900 },\n> .testPatternModes = {},\n> + .sensorDelays = {\n> + { &controls::internal::FrameDuration, 2 },\n> + { &controls::internal::ExposureTime, 2 },\n> + { &controls::internal::AnalogueGain, 2 },\n> + },\n> } },\n> { \"imx296\", {\n> .unitCellSize = { 3450, 3450 },\n> .testPatternModes = {},\n> + .sensorDelays = { },\n\nThe IMX296 is listed in RPi's cam_helper_imx296 without an override.\nThat means in their implementation that this is expected to use\n\n\t.sensorDelays = &commonDelays;\n\n> } },\n> { \"imx477\", {\n> .unitCellSize = { 1550, 1550 },\n> .testPatternModes = {},\n> + .sensorDelays = { },\n\ncam_helper_imx477 has the following overrides:\n\n\texposure_delay = 2;\n\tgain_delay = 2;\n\tvblank_delay = 3;\n\n> } },\n> { \"ov2740\", {\n> .unitCellSize = { 1400, 1400 },\n> @@ -108,6 +136,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> { controls::draft::TestPatternModeOff, 0 },\n> { controls::draft::TestPatternModeColorBars, 1},\n> },\n> + .sensorDelays = { },\n> } },\n> { \"ov5640\", {\n> .unitCellSize = { 1400, 1400 },\n> @@ -115,10 +144,16 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> { controls::draft::TestPatternModeOff, 0 },\n> { controls::draft::TestPatternModeColorBars, 1 },\n> },\n> + .sensorDelays = { },\n> } },\n> { \"ov5647\", {\n> .unitCellSize = { 1400, 1400 },\n> .testPatternModes = {},\n> + .sensorDelays = {\n> + { &controls::internal::FrameDuration, 2 },\n> + { &controls::internal::ExposureTime, 2 },\n> + { &controls::internal::AnalogueGain, 2 },\n> + },\n> } },\n> { \"ov5670\", {\n> .unitCellSize = { 1120, 1120 },\n> @@ -126,6 +161,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> { controls::draft::TestPatternModeOff, 0 },\n> { controls::draft::TestPatternModeColorBars, 1 },\n> },\n> + .sensorDelays = { },\n> } },\n> { \"ov5675\", {\n> .unitCellSize = { 1120, 1120 },\n> @@ -133,6 +169,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> { controls::draft::TestPatternModeOff, 0 },\n> { controls::draft::TestPatternModeColorBars, 1 },\n> },\n> + .sensorDelays = { },\n> } },\n> { \"ov5693\", {\n> .unitCellSize = { 1400, 1400 },\n> @@ -145,6 +182,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> * Rolling Bar\".\n> */\n> },\n> + .sensorDelays = { },\n> } },\n> { \"ov8865\", {\n> .unitCellSize = { 1400, 1400 },\n> @@ -159,6 +197,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> * 5: \"Color squares with rolling bar\"\n> */\n> },\n> + .sensorDelays = { },\n> } },\n> { \"ov13858\", {\n> .unitCellSize = { 1120, 1120 },\n> @@ -166,6 +205,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> { controls::draft::TestPatternModeOff, 0 },\n> { controls::draft::TestPatternModeColorBars, 1 },\n> },\n> + .sensorDelays = { },\n> } },\n> };\n> \n> -- \n> 2.36.1\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 48723BD808\n\tfor ;\n\tThu, 30 Jun 2022 22:37:37 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 8D33A6564E;\n\tFri, 1 Jul 2022 00:37:36 +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 90F1360412\n\tfor ;\n\tFri, 1 Jul 2022 00:37:35 +0200 (CEST)","from 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[libcamera-devel] [PATCH v3 09/23] libcamera:\n\tcamera_sensor_properties: Add sensor delays","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","From":"Kieran Bingham via libcamera-devel\n\t","Reply-To":"Kieran Bingham ","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":23708,"web_url":"https://patchwork.libcamera.org/comment/23708/","msgid":"<20220701085917.n7zqxpups5tys4ef@uno.localdomain>","date":"2022-07-01T08:59:17","subject":"Re: [libcamera-devel] [PATCH v3 09/23] libcamera:\n\tcamera_sensor_properties: Add sensor delays","submitter":{"id":3,"url":"https://patchwork.libcamera.org/api/people/3/","name":"Jacopo Mondi","email":"jacopo@jmondi.org"},"content":"Hi Kieran\n\nOn Thu, Jun 30, 2022 at 11:37:32PM +0100, Kieran Bingham wrote:\n> Quoting Jacopo Mondi via libcamera-devel (2022-06-30 14:38:48)\n> > Add to the camera sensor properties a map of control identifiers to\n> > their latencies.\n> >\n> > Some camera sensor controls take a variable number of frames to take\n> > effect, hence they should be set in advance. The newly introduced map\n> > records that information as a property of the camera sensor class.\n> >\n> > Signed-off-by: Jacopo Mondi \n> > ---\n> > .../internal/camera_sensor_properties.h | 4 ++\n> > .../camera_sensor_properties.cpp | 40 +++++++++++++++++++\n> > 2 files changed, 44 insertions(+)\n> >\n> > diff --git a/include/libcamera/internal/camera_sensor_properties.h b/include/libcamera/internal/camera_sensor_properties.h\n> > index 1ee3cb994106..2404b0674323 100644\n> > --- a/include/libcamera/internal/camera_sensor_properties.h\n> > +++ b/include/libcamera/internal/camera_sensor_properties.h\n> > @@ -9,6 +9,7 @@\n> >\n> > #include \n> > #include \n> > +#include \n> >\n> > #include \n> > #include \n> > @@ -16,10 +17,13 @@\n> > namespace libcamera {\n> >\n> > struct CameraSensorProperties {\n> > + using SensorDelays = std::unordered_map;\n> > +\n> > static const CameraSensorProperties *get(const std::string &sensor);\n> >\n> > Size unitCellSize;\n> > std::map testPatternModes;\n> > + SensorDelays sensorDelays;\n> > };\n> >\n> > } /* namespace libcamera */\n> > diff --git a/src/libcamera/camera_sensor/camera_sensor_properties.cpp b/src/libcamera/camera_sensor/camera_sensor_properties.cpp\n> > index e5f27f06eb1d..4b5ab716abe2 100644\n> > --- a/src/libcamera/camera_sensor/camera_sensor_properties.cpp\n> > +++ b/src/libcamera/camera_sensor/camera_sensor_properties.cpp\n> > @@ -13,6 +13,8 @@\n> >\n> > #include \n> >\n> > +#include \n> > +\n> > /**\n> > * \\file camera_sensor_properties.h\n> > * \\brief Database of camera sensor properties\n> > @@ -41,6 +43,18 @@ LOG_DEFINE_CATEGORY(CameraSensorProperties)\n> > * \\brief Map that associates the TestPattern control value with the indexes of\n> > * the corresponding sensor test pattern modes as returned by\n> > * V4L2_CID_TEST_PATTERN.\n> > + *\n> > + * \\var CameraSensorProperties::sensorDelays\n> > + * \\brief Map that associates control identifiers with their latencies,\n> > + * expressed in frame periods.\n> > + */\n> > +\n> > +/**\n> > + * \\typedef CameraSensorProperties::SensorDelays\n> > + * \\brief Camera sensor controls delays\n> > + *\n> > + * Type to represent a map of camera sensor controls associated with their\n> > + * latencies, expressed in frame periods.\n> > */\n> >\n>\n> I wonder if defining a 'common' struct of sensor delays here could ease\n> referencing it in the default case.\n>\n> static const SensorDelays commonDelays = {\n> { &controls::internal::FrameDuration, 2 },\n> { &controls::internal::ExposureTime, 2 },\n> { &controls::internal::AnalogueGain, 1 },\n> };\n>\n\nIf we want something like this, I think it should not be here but\nrather in CameraSensor.\n\nHave a look at\n[PATCH v3 10/23] libcamera: camera_sensor: Initialize delayed controls\n\n+int CameraSensor::initDelayedControls()\n+{\n+ /* If no static priorities are available, all controls have delay 0. */\n+ static const CameraSensorProperties::SensorDelays noDelays{};\n+ const CameraSensorProperties::SensorDelays *delays = staticProps_\n+ ? &staticProps_->sensorDelays\n+ : &noDelays;\n\nThe noDelays{} there can be made a defaultDelays map.\n\nI actually had it but I had no idea how \"default\" those defaults\nactually are..\n\n> Or ideally, if we knew 'all ccs' cameras or such used these delays we\n> could have a better name ?\n>\n> defaultDelays ?\n>\n> I know I commented on this before saying if we don't have the numbers we\n> should leave the the delays as zero, but I think there I meant on an\n> individual entry.\n>\n> But perhaps now I see this I'm changing my mind too - and leaning\n> towards a default set can easily be defined and referenced, and\n> overridden in the case of a difference?\n>\n>\n> > /**\n> > @@ -69,6 +83,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > * 9: \"Resolution Pattern\"\n> > */\n> > },\n> > + .sensorDelays = { },\n>\n> then\n> \t\t\t.sensorDelays = &commonDelays;\n> ?\n>\n> Though this is the hi846, so we should identify what the delays really\n> are there.\n>\n> > } },\n> > { \"imx219\", {\n> > .unitCellSize = { 1120, 1120 },\n> > @@ -79,6 +94,11 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > { controls::draft::TestPatternModeColorBarsFadeToGray, 3 },\n> > { controls::draft::TestPatternModePn9, 4 },\n> > },\n> > + .sensorDelays = {\n> > + { &controls::internal::FrameDuration, 2 },\n> > + { &controls::internal::ExposureTime, 2 },\n> > + { &controls::internal::AnalogueGain, 1 },\n> > + },\n>\n> But this one could be:\n> \t\t\t.sensorDelays = &commonDelays;\n>\n> > } },\n> > { \"imx258\", {\n> > .unitCellSize = { 1120, 1120 },\n> > @@ -89,18 +109,26 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > { controls::draft::TestPatternModeColorBarsFadeToGray, 3 },\n> > { controls::draft::TestPatternModePn9, 4 },\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > { \"imx290\", {\n> > .unitCellSize = { 2900, 2900 },\n> > .testPatternModes = {},\n> > + .sensorDelays = {\n> > + { &controls::internal::FrameDuration, 2 },\n> > + { &controls::internal::ExposureTime, 2 },\n> > + { &controls::internal::AnalogueGain, 2 },\n> > + },\n> > } },\n> > { \"imx296\", {\n> > .unitCellSize = { 3450, 3450 },\n> > .testPatternModes = {},\n> > + .sensorDelays = { },\n>\n> The IMX296 is listed in RPi's cam_helper_imx296 without an override.\n> That means in their implementation that this is expected to use\n>\n> \t.sensorDelays = &commonDelays;\n\nAh ok, missed that !\n\n>\n> > } },\n> > { \"imx477\", {\n> > .unitCellSize = { 1550, 1550 },\n> > .testPatternModes = {},\n> > + .sensorDelays = { },\n>\n> cam_helper_imx477 has the following overrides:\n>\n> \texposure_delay = 2;\n> \tgain_delay = 2;\n> \tvblank_delay = 3;\n>\n\nAh thanks, I'll fix\n\n> > } },\n> > { \"ov2740\", {\n> > .unitCellSize = { 1400, 1400 },\n> > @@ -108,6 +136,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > { controls::draft::TestPatternModeOff, 0 },\n> > { controls::draft::TestPatternModeColorBars, 1},\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > { \"ov5640\", {\n> > .unitCellSize = { 1400, 1400 },\n> > @@ -115,10 +144,16 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > { controls::draft::TestPatternModeOff, 0 },\n> > { controls::draft::TestPatternModeColorBars, 1 },\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > { \"ov5647\", {\n> > .unitCellSize = { 1400, 1400 },\n> > .testPatternModes = {},\n> > + .sensorDelays = {\n> > + { &controls::internal::FrameDuration, 2 },\n> > + { &controls::internal::ExposureTime, 2 },\n> > + { &controls::internal::AnalogueGain, 2 },\n> > + },\n> > } },\n> > { \"ov5670\", {\n> > .unitCellSize = { 1120, 1120 },\n> > @@ -126,6 +161,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > { controls::draft::TestPatternModeOff, 0 },\n> > { controls::draft::TestPatternModeColorBars, 1 },\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > { \"ov5675\", {\n> > .unitCellSize = { 1120, 1120 },\n> > @@ -133,6 +169,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > { controls::draft::TestPatternModeOff, 0 },\n> > { controls::draft::TestPatternModeColorBars, 1 },\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > { \"ov5693\", {\n> > .unitCellSize = { 1400, 1400 },\n> > @@ -145,6 +182,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > * Rolling Bar\".\n> > */\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > { \"ov8865\", {\n> > .unitCellSize = { 1400, 1400 },\n> > @@ -159,6 +197,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > * 5: \"Color squares with rolling bar\"\n> > */\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > { \"ov13858\", {\n> > .unitCellSize = { 1120, 1120 },\n> > @@ -166,6 +205,7 @@ const CameraSensorProperties *CameraSensorProperties::get(const std::string &sen\n> > { controls::draft::TestPatternModeOff, 0 },\n> > { controls::draft::TestPatternModeColorBars, 1 },\n> > },\n> > + .sensorDelays = { },\n> > } },\n> > };\n> >\n> > --\n> > 2.36.1\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 948AEBD808\n\tfor ;\n\tFri, 1 Jul 2022 08:59:20 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 04B2A6564E;\n\tFri, 1 Jul 2022 10:59:20 +0200 (CEST)","from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net\n\t[IPv6:2001:4b98:dc4:8::229])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 9AB486054A\n\tfor ;\n\tFri, 1 Jul 2022 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","Message-ID":"<20220701085917.n7zqxpups5tys4ef@uno.localdomain>","References":"<20220630133902.321099-1-jacopo@jmondi.org>\n\t<20220630133902.321099-10-jacopo@jmondi.org>\n\t<165662865229.1516045.2845084106728968151@Monstersaurus>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","In-Reply-To":"<165662865229.1516045.2845084106728968151@Monstersaurus>","Subject":"Re: [libcamera-devel] [PATCH v3 09/23] libcamera:\n\tcamera_sensor_properties: Add sensor delays","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","From":"Jacopo Mondi via libcamera-devel ","Reply-To":"Jacopo Mondi ","Cc":"libcamera-devel@lists.libcamera.org","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]