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{
    "id": 17488,
    "url": "https://patchwork.libcamera.org/api/1.1/patches/17488/?format=api",
    "web_url": "https://patchwork.libcamera.org/patch/17488/",
    "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": "<20221003083934.31629-2-naush@raspberrypi.com>",
    "date": "2022-10-03T08:39:27",
    "name": "[libcamera-devel,v1,1/9] camera_sensor: Add minimum and maximum line length to IPACameraSensorInfo",
    "commit_ref": null,
    "pull_url": null,
    "state": "changes-requested",
    "archived": false,
    "hash": "c4ee90c0c1095587ad6a02fb7cda8fc39a6b0f7b",
    "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/17488/mbox/",
    "series": [
        {
            "id": 3523,
            "url": "https://patchwork.libcamera.org/api/1.1/series/3523/?format=api",
            "web_url": "https://patchwork.libcamera.org/project/libcamera/list/?series=3523",
            "date": "2022-10-03T08:39:26",
            "name": "Raspberry Pi: Horizontal blanking control",
            "version": 1,
            "mbox": "https://patchwork.libcamera.org/series/3523/mbox/"
        }
    ],
    "comments": "https://patchwork.libcamera.org/api/patches/17488/comments/",
    "check": "pending",
    "checks": "https://patchwork.libcamera.org/api/patches/17488/checks/",
    "tags": {},
    "headers": {
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        "To": "libcamera-devel@lists.libcamera.org",
        "Date": "Mon,  3 Oct 2022 09:39:27 +0100",
        "Message-Id": "<20221003083934.31629-2-naush@raspberrypi.com>",
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        "Content-Transfer-Encoding": "8bit",
        "Subject": "[libcamera-devel] [PATCH v1 1/9] camera_sensor: Add minimum and\n\tmaximum line length to IPACameraSensorInfo",
        "X-BeenThere": "libcamera-devel@lists.libcamera.org",
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        "List-Id": "<libcamera-devel.lists.libcamera.org>",
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        "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 fields for minimum and maximum line length (in units of pixels) to the\nIPACameraSensorInfo structure. This replaces the existing lineLength field.\n\nUpdate the ipu3, raspberrypi and rkisp1 IPAs to use IPACameraSensorInfo::minLineLength\ninstead of IPACameraSensorInfo::lineLength, as logically we will always want to\nuse the fastest sensor readout by default.\n\nSigned-off-by: Naushir Patuck <naush@raspberrypi.com>\n---\n include/libcamera/ipa/core.mojom    | 21 +++++++++++++++------\n src/ipa/ipu3/ipu3.cpp               |  2 +-\n src/ipa/raspberrypi/raspberrypi.cpp |  2 +-\n src/ipa/rkisp1/rkisp1.cpp           |  2 +-\n src/libcamera/camera_sensor.cpp     |  6 ++++--\n 5 files changed, 22 insertions(+), 11 deletions(-)",
    "diff": "diff --git a/include/libcamera/ipa/core.mojom b/include/libcamera/ipa/core.mojom\nindex 74f3339e56f2..2bc3028c22d6 100644\n--- a/include/libcamera/ipa/core.mojom\n+++ b/include/libcamera/ipa/core.mojom\n@@ -172,10 +172,17 @@ module libcamera;\n  */\n \n /**\n- * \\var IPACameraSensorInfo::lineLength\n- * \\brief Total line length in pixels\n+ * \\var IPACameraSensorInfo::minLineLength\n+ * \\brief The minimum line length in pixels\n  *\n- * The total line length in pixel clock periods, including blanking.\n+ * The minimum allowable line length in pixel clock periods, including blanking.\n+ */\n+\n+/**\n+ * \\var IPACameraSensorInfo::maxLineLength\n+ * \\brief The maximum line length in pixels\n+ *\n+ * The maximum allowable line length in pixel clock periods, including blanking.\n  */\n \n /**\n@@ -189,7 +196,7 @@ module libcamera;\n  * To obtain the minimum frame duration:\n  *\n  * \\verbatim\n-       frameDuration(s) = minFrameLength(lines) * lineLength(pixels) / pixelRate(pixels per second)\n+       frameDuration(s) = minFrameLength(lines) * minLineLength(pixels) / pixelRate(pixels per second)\n    \\endverbatim\n  */\n \n@@ -204,7 +211,7 @@ module libcamera;\n  * To obtain the maximum frame duration:\n  *\n  * \\verbatim\n-       frameDuration(s) = maxFrameLength(lines) * lineLength(pixels) / pixelRate(pixels per second)\n+       frameDuration(s) = maxFrameLength(lines) * maxLineLength(pixels) / pixelRate(pixels per second)\n    \\endverbatim\n  */\n struct IPACameraSensorInfo {\n@@ -217,7 +224,9 @@ struct IPACameraSensorInfo {\n \tSize outputSize;\n \n \tuint64 pixelRate;\n-\tuint32 lineLength;\n+\n+\tuint32 minLineLength;\n+\tuint32 maxLineLength;\n \n \tuint32 minFrameLength;\n \tuint32 maxFrameLength;\ndiff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp\nindex d1ea081d595d..da029571ba55 100644\n--- a/src/ipa/ipu3/ipu3.cpp\n+++ b/src/ipa/ipu3/ipu3.cpp\n@@ -341,7 +341,7 @@ int IPAIPU3::init(const IPASettings &settings,\n \n \t/* Clean context */\n \tcontext_.configuration = {};\n-\tcontext_.configuration.sensor.lineDuration = sensorInfo.lineLength * 1.0s / sensorInfo.pixelRate;\n+\tcontext_.configuration.sensor.lineDuration = sensorInfo.minLineLength * 1.0s / sensorInfo.pixelRate;\n \n \t/* Load the tuning data file. */\n \tFile file(settings.configurationFile);\ndiff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp\nindex 8d731435764e..358a119da222 100644\n--- a/src/ipa/raspberrypi/raspberrypi.cpp\n+++ b/src/ipa/raspberrypi/raspberrypi.cpp\n@@ -356,7 +356,7 @@ void IPARPi::setMode(const IPACameraSensorInfo &sensorInfo)\n \t * Calculate the line length as the ratio between the line length in\n \t * pixels and the pixel rate.\n \t */\n-\tmode_.lineLength = sensorInfo.lineLength * (1.0s / sensorInfo.pixelRate);\n+\tmode_.lineLength = sensorInfo.minLineLength * (1.0s / sensorInfo.pixelRate);\n \n \t/*\n \t * Set the frame length limits for the mode to ensure exposure and\ndiff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp\nindex 32feb1682749..ddb22d98eb41 100644\n--- a/src/ipa/rkisp1/rkisp1.cpp\n+++ b/src/ipa/rkisp1/rkisp1.cpp\n@@ -246,7 +246,7 @@ int IPARkISP1::configure([[maybe_unused]] const IPACameraSensorInfo &info,\n \tcontext_.configuration.hw.revision = hwRevision_;\n \n \tcontext_.configuration.sensor.size = info.outputSize;\n-\tcontext_.configuration.sensor.lineDuration = info.lineLength * 1.0s / info.pixelRate;\n+\tcontext_.configuration.sensor.lineDuration = info.minLineLength * 1.0s / info.pixelRate;\n \n \t/*\n \t * When the AGC computes the new exposure values for a frame, it needs\ndiff --git a/src/libcamera/camera_sensor.cpp b/src/libcamera/camera_sensor.cpp\nindex 911fd0beae4e..c2c8d3d44e26 100644\n--- a/src/libcamera/camera_sensor.cpp\n+++ b/src/libcamera/camera_sensor.cpp\n@@ -883,10 +883,12 @@ int CameraSensor::sensorInfo(IPACameraSensorInfo *info) const\n \t\treturn -EINVAL;\n \t}\n \n-\tint32_t hblank = ctrls.get(V4L2_CID_HBLANK).get<int32_t>();\n-\tinfo->lineLength = info->outputSize.width + hblank;\n \tinfo->pixelRate = ctrls.get(V4L2_CID_PIXEL_RATE).get<int64_t>();\n \n+\tconst ControlInfo hblank = ctrls.infoMap()->at(V4L2_CID_HBLANK);\n+\tinfo->minLineLength = info->outputSize.width + hblank.min().get<int32_t>();\n+\tinfo->maxLineLength = info->outputSize.width + hblank.max().get<int32_t>();\n+\n \tconst ControlInfo vblank = ctrls.infoMap()->at(V4L2_CID_VBLANK);\n \tinfo->minFrameLength = info->outputSize.height + vblank.min().get<int32_t>();\n \tinfo->maxFrameLength = info->outputSize.height + vblank.max().get<int32_t>();\n",
    "prefixes": [
        "libcamera-devel",
        "v1",
        "1/9"
    ]
}