[{"id":25709,"web_url":"https://patchwork.libcamera.org/comment/25709/","msgid":"","date":"2022-11-01T12:12:17","subject":"Re: [libcamera-devel] [PATCH v1 07/10] pipeline: raspberrypi: Add a\n\tparameter to disable startup drop frames","submitter":{"id":42,"url":"https://patchwork.libcamera.org/api/people/42/","name":"David Plowman","email":"david.plowman@raspberrypi.com"},"content":"Hi Naush\n\nThanks for the patch!\n\nOn Fri, 14 Oct 2022 at 14:19, Naushir Patuck via libcamera-devel\n wrote:\n>\n> Add a new pipeline config parameter \"disable_startup_frame_drops\" to disable\n> any startup drop frames, overriding the IPA request.\n>\n> When this parameter is set, it allows the pipeline handler to run with no\n> internally allocated Unicam buffers (\"min_unicam_buffers\").\n>\n> Add a validation to ensure if \"disable_startup_frame_drops\" is false, at least\n> one internal Unicam buffer is allocated, possibly overriding the\n> \"min_unicam_buffers\" parameter.\n>\n> Signed-off-by: Naushir Patuck \n> ---\n> .../pipeline/raspberrypi/data/default.json | 7 +++++--\n> .../pipeline/raspberrypi/raspberrypi.cpp | 15 ++++++++++++++-\n> 2 files changed, 19 insertions(+), 3 deletions(-)\n>\n> diff --git a/src/libcamera/pipeline/raspberrypi/data/default.json b/src/libcamera/pipeline/raspberrypi/data/default.json\n> index a7ea735c87f4..707414bcc5c5 100644\n> --- a/src/libcamera/pipeline/raspberrypi/data/default.json\n> +++ b/src/libcamera/pipeline/raspberrypi/data/default.json\n> @@ -5,7 +5,7 @@\n> \"pipeline_handler\":\n> {\n> # The minimum number of internal buffers to be allocated for Unicam.\n> - # This value must be greater than 0, but less than or equal to min_total_unicam_buffers.\n> + # This value must less than or equal to min_total_unicam_buffers.\n> \"min_unicam_buffers\": 2,\n>\n> # The minimum total (internal + external) buffer count used for Unicam.\n> @@ -15,6 +15,9 @@\n> \"min_total_unicam_buffers\": 4,\n>\n> # The number of internal buffers used for ISP Output0.\n> - \"num_output0_buffers\": 1\n> + \"num_output0_buffers\": 1,\n> +\n> + # Override any request from the IPA to drop a number of startup frames.\n> + \"disable_startup_frame_drops\": false\n> }\n> }\n> diff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n> index 2aba0430c02e..135948d82f41 100644\n> --- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n> +++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n> @@ -300,6 +300,7 @@ public:\n> unsigned int minUnicamBuffers;\n> unsigned int minTotalUnicamBuffers;\n> unsigned int numOutput0Buffers;\n> + bool disableStartupFrameDrops;\n> };\n>\n> Config config_;\n> @@ -1044,7 +1045,7 @@ int PipelineHandlerRPi::start(Camera *camera, const ControlList *controls)\n> data->setSensorControls(startConfig.controls);\n>\n> /* Configure the number of dropped frames required on startup. */\n> - data->dropFrameCount_ = startConfig.dropFrameCount;\n> + data->dropFrameCount_ = data->config_.disableStartupFrameDrops ? 0 : startConfig.dropFrameCount;\n\nMight this warrant an INFO message, just in case folks are confused by\nthe changing AGC/AWB when things start? Or maybe that would be\nannoying, for example if an application wants to run like this and\nhandles the startup frames for itself?\n\nReviewed-by: David Plowman \n\nThanks!\nDavid\n\n>\n> for (auto const stream : data->streams_)\n> stream->resetBuffers();\n> @@ -1430,6 +1431,7 @@ int PipelineHandlerRPi::configurePipelineHandler(RPiCameraData *data)\n> .minUnicamBuffers = 2,\n> .minTotalUnicamBuffers = 4,\n> .numOutput0Buffers = 1,\n> + .disableStartupFrameDrops = false,\n> };\n>\n> char const *configFromEnv = utils::secure_getenv(\"LIBCAMERA_RPI_CONFIG_FILE\");\n> @@ -1464,6 +1466,8 @@ int PipelineHandlerRPi::configurePipelineHandler(RPiCameraData *data)\n> phConfig[\"min_total_unicam_buffers\"].get(config.minTotalUnicamBuffers);\n> config.numOutput0Buffers =\n> phConfig[\"num_output0_buffers\"].get(config.numOutput0Buffers);\n> + config.disableStartupFrameDrops =\n> + phConfig[\"disable_startup_frame_drops\"].get(config.disableStartupFrameDrops);\n>\n> if (config.minTotalUnicamBuffers < config.minUnicamBuffers || config.minTotalUnicamBuffers < 1) {\n> LOG(RPI, Error) << \"Invalid Unicam buffer configuration used!\";\n> @@ -1543,6 +1547,15 @@ int PipelineHandlerRPi::prepareBuffers(Camera *camera)\n> */\n> numBuffers = std::max(data->config_.minUnicamBuffers,\n> minBuffers - numRawBuffers);\n> +\n> + if (numBuffers == 0 && data->dropFrameCount_) {\n> + LOG(RPI, Warning)\n> + << \"Configured with no Unicam buffers,\"\n> + \" but the IPA requested startup frame drops.\"\n> + \" Increasing to one buffer.\";\n> + numBuffers = 1;\n> + }\n> +\n> data->numUnicamBuffers = numBuffers;\n> } else if (stream == &data->isp_[Isp::Input]) {\n> /*\n> --\n> 2.25.1\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 D2BD9BD16B\n\tfor ;\n\tTue, 1 Nov 2022 12:12:31 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 3EF6F63031;\n\tTue, 1 Nov 2022 13:12:31 +0100 (CET)","from mail-pj1-x1029.google.com (mail-pj1-x1029.google.com\n\t[IPv6:2607:f8b0:4864:20::1029])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id E46E163009\n\tfor ;\n\tTue, 1 Nov 2022 13:12:29 +0100 (CET)","by mail-pj1-x1029.google.com with SMTP id\n\tu8-20020a17090a5e4800b002106dcdd4a0so18629198pji.1\n\tfor ;\n\tTue, 01 Nov 2022 05:12:29 -0700 (PDT)"],"DKIM-Signature":["v=1; 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charset=\"UTF-8\"","Subject":"Re: [libcamera-devel] [PATCH v1 07/10] pipeline: raspberrypi: Add a\n\tparameter to disable startup drop frames","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":"David Plowman via libcamera-devel ","Reply-To":"David Plowman ","Cc":"libcamera-devel@lists.libcamera.org","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":25924,"web_url":"https://patchwork.libcamera.org/comment/25924/","msgid":"","date":"2022-11-29T10:46:41","subject":"Re: [libcamera-devel] [PATCH v1 07/10] pipeline: raspberrypi: Add a\n\tparameter to disable startup drop frames","submitter":{"id":34,"url":"https://patchwork.libcamera.org/api/people/34/","name":"Naushir Patuck","email":"naush@raspberrypi.com"},"content":"Hi David,\n\nThank you for your feedback.\n\nOn Tue, 1 Nov 2022 at 12:12, David Plowman \nwrote:\n\n> Hi Naush\n>\n> Thanks for the patch!\n>\n> On Fri, 14 Oct 2022 at 14:19, Naushir Patuck via libcamera-devel\n> wrote:\n> >\n> > Add a new pipeline config parameter \"disable_startup_frame_drops\" to\n> disable\n> > any startup drop frames, overriding the IPA request.\n> >\n> > When this parameter is set, it allows the pipeline handler to run with no\n> > internally allocated Unicam buffers (\"min_unicam_buffers\").\n> >\n> > Add a validation to ensure if \"disable_startup_frame_drops\" is false, at\n> least\n> > one internal Unicam buffer is allocated, possibly overriding the\n> > \"min_unicam_buffers\" parameter.\n> >\n> > Signed-off-by: Naushir Patuck \n> > ---\n> > .../pipeline/raspberrypi/data/default.json | 7 +++++--\n> > .../pipeline/raspberrypi/raspberrypi.cpp | 15 ++++++++++++++-\n> > 2 files changed, 19 insertions(+), 3 deletions(-)\n> >\n> > diff --git a/src/libcamera/pipeline/raspberrypi/data/default.json\n> b/src/libcamera/pipeline/raspberrypi/data/default.json\n> > index a7ea735c87f4..707414bcc5c5 100644\n> > --- a/src/libcamera/pipeline/raspberrypi/data/default.json\n> > +++ b/src/libcamera/pipeline/raspberrypi/data/default.json\n> > @@ -5,7 +5,7 @@\n> > \"pipeline_handler\":\n> > {\n> > # The minimum number of internal buffers to be\n> allocated for Unicam.\n> > - # This value must be greater than 0, but less than or\n> equal to min_total_unicam_buffers.\n> > + # This value must less than or equal to\n> min_total_unicam_buffers.\n> > \"min_unicam_buffers\": 2,\n> >\n> > # The minimum total (internal + external) buffer count\n> used for Unicam.\n> > @@ -15,6 +15,9 @@\n> > \"min_total_unicam_buffers\": 4,\n> >\n> > # The number of internal buffers used for ISP Output0.\n> > - \"num_output0_buffers\": 1\n> > + \"num_output0_buffers\": 1,\n> > +\n> > + # Override any request from the IPA to drop a number of\n> startup frames.\n> > + \"disable_startup_frame_drops\": false\n> > }\n> > }\n> > diff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n> b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n> > index 2aba0430c02e..135948d82f41 100644\n> > --- a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n> > +++ b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\n> > @@ -300,6 +300,7 @@ public:\n> > unsigned int minUnicamBuffers;\n> > unsigned int minTotalUnicamBuffers;\n> > unsigned int numOutput0Buffers;\n> > + bool disableStartupFrameDrops;\n> > };\n> >\n> > Config config_;\n> > @@ -1044,7 +1045,7 @@ int PipelineHandlerRPi::start(Camera *camera,\n> const ControlList *controls)\n> > data->setSensorControls(startConfig.controls);\n> >\n> > /* Configure the number of dropped frames required on startup. */\n> > - data->dropFrameCount_ = startConfig.dropFrameCount;\n> > + data->dropFrameCount_ = data->config_.disableStartupFrameDrops ?\n> 0 : startConfig.dropFrameCount;\n>\n> Might this warrant an INFO message, just in case folks are confused by\n> the changing AGC/AWB when things start? Or maybe that would be\n> annoying, for example if an application wants to run like this and\n> handles the startup frames for itself?\n>\n\nThere are already DEBUG level messages for dropping convergence frames,\ndo you think that is enough?\n\nRegards,\nNaush\n\n\n\n>\n> Reviewed-by: David Plowman \n>\n> Thanks!\n> David\n>\n> >\n> > for (auto const stream : data->streams_)\n> > stream->resetBuffers();\n> > @@ -1430,6 +1431,7 @@ int\n> PipelineHandlerRPi::configurePipelineHandler(RPiCameraData *data)\n> > .minUnicamBuffers = 2,\n> > .minTotalUnicamBuffers = 4,\n> > .numOutput0Buffers = 1,\n> > + .disableStartupFrameDrops = false,\n> > };\n> >\n> > char const *configFromEnv =\n> utils::secure_getenv(\"LIBCAMERA_RPI_CONFIG_FILE\");\n> > @@ -1464,6 +1466,8 @@ int\n> PipelineHandlerRPi::configurePipelineHandler(RPiCameraData *data)\n> > phConfig[\"min_total_unicam_buffers\"].get int>(config.minTotalUnicamBuffers);\n> > config.numOutput0Buffers =\n> > phConfig[\"num_output0_buffers\"].get int>(config.numOutput0Buffers);\n> > + config.disableStartupFrameDrops =\n> > +\n> phConfig[\"disable_startup_frame_drops\"].get(config.disableStartupFrameDrops);\n> >\n> > if (config.minTotalUnicamBuffers < config.minUnicamBuffers ||\n> config.minTotalUnicamBuffers < 1) {\n> > LOG(RPI, Error) << \"Invalid Unicam buffer configuration\n> used!\";\n> > @@ -1543,6 +1547,15 @@ int PipelineHandlerRPi::prepareBuffers(Camera\n> *camera)\n> > */\n> > numBuffers =\n> std::max(data->config_.minUnicamBuffers,\n> > minBuffers -\n> numRawBuffers);\n> > +\n> > + if (numBuffers == 0 && data->dropFrameCount_) {\n> > + LOG(RPI, Warning)\n> > + << \"Configured with no Unicam\n> buffers,\"\n> > + \" but the IPA requested\n> startup frame drops.\"\n> > + \" Increasing to one buffer.\";\n> > + numBuffers = 1;\n> > + }\n> > +\n> > data->numUnicamBuffers = numBuffers;\n> > } else if (stream == &data->isp_[Isp::Input]) {\n> > /*\n> > --\n> > 2.25.1\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 33983BE08B\n\tfor ;\n\tTue, 29 Nov 2022 10:46:59 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 982E46333A;\n\tTue, 29 Nov 2022 11:46:58 +0100 (CET)","from mail-io1-xd2d.google.com (mail-io1-xd2d.google.com\n\t[IPv6:2607:f8b0:4864:20::d2d])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id C12B963314\n\tfor ;\n\tTue, 29 Nov 2022 11:46:56 +0100 (CET)","by mail-io1-xd2d.google.com with SMTP id q21so9712045iod.4\n\tfor ;\n\tTue, 29 Nov 2022 02:46:56 -0800 (PST)"],"DKIM-Signature":["v=1; 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boundary=\"000000000000dfdea305ee99b448\"","Subject":"Re: [libcamera-devel] [PATCH v1 07/10] pipeline: raspberrypi: Add a\n\tparameter to disable startup drop frames","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":"Naushir Patuck via libcamera-devel\n\t","Reply-To":"Naushir Patuck ","Cc":"libcamera-devel@lists.libcamera.org","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]