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GET /api/1.1/patches/17603/?format=api
{ "id": 17603, "url": "https://patchwork.libcamera.org/api/1.1/patches/17603/?format=api", "web_url": "https://patchwork.libcamera.org/patch/17603/", "project": { "id": 1, "url": "https://patchwork.libcamera.org/api/1.1/projects/1/?format=api", "name": "libcamera", "link_name": "libcamera", "list_id": "libcamera_core", "list_email": "libcamera-devel@lists.libcamera.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20221014131846.27169-8-naush@raspberrypi.com>", "date": "2022-10-14T13:18:43", "name": "[libcamera-devel,v1,07/10] pipeline: raspberrypi: Add a parameter to disable startup drop frames", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "700ec138aae10e09e26214fbbe1a2cf1e4e33d21", "submitter": { "id": 34, "url": "https://patchwork.libcamera.org/api/1.1/people/34/?format=api", "name": "Naushir Patuck", "email": "naush@raspberrypi.com" }, "delegate": null, "mbox": "https://patchwork.libcamera.org/patch/17603/mbox/", "series": [ { "id": 3555, "url": "https://patchwork.libcamera.org/api/1.1/series/3555/?format=api", "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3555", "date": "2022-10-14T13:18:37", "name": "Raspberry Pi: Platform configuration and buffer allocation improvements", "version": 1, "mbox": "https://patchwork.libcamera.org/series/3555/mbox/" } ], "comments": "https://patchwork.libcamera.org/api/patches/17603/comments/", "check": "pending", "checks": "https://patchwork.libcamera.org/api/patches/17603/checks/", "tags": {}, "headers": { "Return-Path": "<libcamera-devel-bounces@lists.libcamera.org>", "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 B342BC3287\n\tfor <parsemail@patchwork.libcamera.org>;\n\tFri, 14 Oct 2022 13:19:03 +0000 (UTC)", "from 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06:18:56 -0700 (PDT)", "To": "libcamera-devel@lists.libcamera.org", "Date": "Fri, 14 Oct 2022 14:18:43 +0100", "Message-Id": "<20221014131846.27169-8-naush@raspberrypi.com>", "X-Mailer": "git-send-email 2.25.1", "In-Reply-To": "<20221014131846.27169-1-naush@raspberrypi.com>", "References": "<20221014131846.27169-1-naush@raspberrypi.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[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": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "From": "Naushir Patuck via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Naushir Patuck <naush@raspberrypi.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Add a new pipeline config parameter \"disable_startup_frame_drops\" to disable\nany startup drop frames, overriding the IPA request.\n\nWhen this parameter is set, it allows the pipeline handler to run with no\ninternally allocated Unicam buffers (\"min_unicam_buffers\").\n\nAdd a validation to ensure if \"disable_startup_frame_drops\" is false, at least\none internal Unicam buffer is allocated, possibly overriding the\n\"min_unicam_buffers\" parameter.\n\nSigned-off-by: Naushir Patuck <naush@raspberrypi.com>\n---\n .../pipeline/raspberrypi/data/default.json | 7 +++++--\n .../pipeline/raspberrypi/raspberrypi.cpp | 15 ++++++++++++++-\n 2 files changed, 19 insertions(+), 3 deletions(-)", "diff": "diff --git a/src/libcamera/pipeline/raspberrypi/data/default.json b/src/libcamera/pipeline/raspberrypi/data/default.json\nindex 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 }\ndiff --git a/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp b/src/libcamera/pipeline/raspberrypi/raspberrypi.cpp\nindex 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 \t\tunsigned int minUnicamBuffers;\n \t\tunsigned int minTotalUnicamBuffers;\n \t\tunsigned int numOutput0Buffers;\n+\t\tbool disableStartupFrameDrops;\n \t};\n \n \tConfig config_;\n@@ -1044,7 +1045,7 @@ int PipelineHandlerRPi::start(Camera *camera, const ControlList *controls)\n \t\tdata->setSensorControls(startConfig.controls);\n \n \t/* Configure the number of dropped frames required on startup. */\n-\tdata->dropFrameCount_ = startConfig.dropFrameCount;\n+\tdata->dropFrameCount_ = data->config_.disableStartupFrameDrops ? 0 : startConfig.dropFrameCount;\n \n \tfor (auto const stream : data->streams_)\n \t\tstream->resetBuffers();\n@@ -1430,6 +1431,7 @@ int PipelineHandlerRPi::configurePipelineHandler(RPiCameraData *data)\n \t\t.minUnicamBuffers = 2,\n \t\t.minTotalUnicamBuffers = 4,\n \t\t.numOutput0Buffers = 1,\n+\t\t.disableStartupFrameDrops = false,\n \t};\n \n \tchar const *configFromEnv = utils::secure_getenv(\"LIBCAMERA_RPI_CONFIG_FILE\");\n@@ -1464,6 +1466,8 @@ int PipelineHandlerRPi::configurePipelineHandler(RPiCameraData *data)\n \t\tphConfig[\"min_total_unicam_buffers\"].get<unsigned int>(config.minTotalUnicamBuffers);\n \tconfig.numOutput0Buffers =\n \t\tphConfig[\"num_output0_buffers\"].get<unsigned int>(config.numOutput0Buffers);\n+\tconfig.disableStartupFrameDrops =\n+\t\tphConfig[\"disable_startup_frame_drops\"].get<bool>(config.disableStartupFrameDrops);\n \n \tif (config.minTotalUnicamBuffers < config.minUnicamBuffers || config.minTotalUnicamBuffers < 1) {\n \t\tLOG(RPI, Error) << \"Invalid Unicam buffer configuration used!\";\n@@ -1543,6 +1547,15 @@ int PipelineHandlerRPi::prepareBuffers(Camera *camera)\n \t\t\t */\n \t\t\tnumBuffers = std::max<int>(data->config_.minUnicamBuffers,\n \t\t\t\t\t\t minBuffers - numRawBuffers);\n+\n+\t\t\tif (numBuffers == 0 && data->dropFrameCount_) {\n+\t\t\t\tLOG(RPI, Warning)\n+\t\t\t\t\t<< \"Configured with no Unicam buffers,\"\n+\t\t\t\t\t \" but the IPA requested startup frame drops.\"\n+\t\t\t\t\t \" Increasing to one buffer.\";\n+\t\t\t\tnumBuffers = 1;\n+\t\t\t}\n+\n \t\t\tdata->numUnicamBuffers = numBuffers;\n \t\t} else if (stream == &data->isp_[Isp::Input]) {\n \t\t\t/*\n", "prefixes": [ "libcamera-devel", "v1", "07/10" ] }