{"id":18747,"url":"https://patchwork.libcamera.org/api/1.1/patches/18747/?format=json","web_url":"https://patchwork.libcamera.org/patch/18747/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20230616100327.86707-1-web@cedricnugteren.nl>","date":"2023-06-16T10:03:27","name":"[libcamera-devel,v4] gstreamer: Add enable_auto_focus option to the GStreamer plugin","commit_ref":null,"pull_url":null,"state":"accepted","archived":false,"hash":"65b34548138c3c388ad6b707bd6542d293e69dea","submitter":{"id":164,"url":"https://patchwork.libcamera.org/api/1.1/people/164/?format=json","name":"Cedric Nugteren","email":"cedric@plumerai.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/18747/mbox/","series":[{"id":3928,"url":"https://patchwork.libcamera.org/api/1.1/series/3928/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=3928","date":"2023-06-16T10:03:27","name":"[libcamera-devel,v4] gstreamer: Add enable_auto_focus option to the GStreamer plugin","version":4,"mbox":"https://patchwork.libcamera.org/series/3928/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/18747/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/18747/checks/","tags":{},"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 94C96BD78E\n\tfor ;\n\tFri, 16 Jun 2023 10:03:34 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id D640D628AE;\n\tFri, 16 Jun 2023 12:03:33 +0200 (CEST)","from mail-ed1-x536.google.com (mail-ed1-x536.google.com\n\t[IPv6:2a00:1450:4864:20::536])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 3AD09628AD\n\tfor ;\n\tFri, 16 Jun 2023 12:03:32 +0200 (CEST)","by mail-ed1-x536.google.com with SMTP id\n\t4fb4d7f45d1cf-51a2fa4a45eso662159a12.0\n\tfor ;\n\tFri, 16 Jun 2023 03:03:32 -0700 (PDT)","from kaylee.. 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With this patch auto-focus can\nbe enabled for cameras that support it. By default it is disabled, which\nmeans default behaviour remains unchanged. For cameras that do not\nsupport auto-focus, an error message shows up if auto-focus is enabled.\n\nThis was tested on cameras that do not support auto-focus (e.g. PiCam2)\nand was tested on a camera that does support auto-focus (PiCam3). The\ntest involved setting the focus to AfModeContinous and observing it.\nHowever, by not setting \"auto-focus-mode\" or using AfModeManual as\nthe \"auto-focus-mode\" both resulting in auto-focus being disabled.\n\nBug: https://bugs.libcamera.org/show_bug.cgi?id=188\n\nSigned-off-by: Cedric Nugteren \n---\nChanges since v1:\n- Now re-using the GParamSpec variables instead of re-creating.\n- Use bool instead of gboolean for enable_auto_focus.\n- Remove changes from the reconfigure_element functions.\n\nChanges since v2:\n- Fix a typo in the commit message (remove 'it').\n- Fix the link to the actual bug.\n- Apply the style suggestions of utils/checkstyle.py.\n- Start the commit message with 'gstreamer:'.\n- Change the boolean to a 3-option AfMode enum and change variable\n names and strings accordingly.\n\nChanges since v3:\n- Removed a period at the end of the bug link.\n- Split the long sentence in the commit message in three parts.\n- Remove unnecessary use of \"libcamera::\".\n- Use controls::AfModeEnum enum instead of int.\n- Add a newline before 'g_param_spec_enum'.\n\n---\n src/gstreamer/gstlibcameraprovider.cpp | 14 ++++++++++++\n src/gstreamer/gstlibcamerasrc.cpp | 31 +++++++++++++++++++++++++-\n src/gstreamer/gstlibcamerasrc.h | 31 ++++++++++++++++++++++++++\n 3 files changed, 75 insertions(+), 1 deletion(-)","diff":"diff --git a/src/gstreamer/gstlibcameraprovider.cpp b/src/gstreamer/gstlibcameraprovider.cpp\nindex 6eb0a0eb..d9216046 100644\n--- a/src/gstreamer/gstlibcameraprovider.cpp\n+++ b/src/gstreamer/gstlibcameraprovider.cpp\n@@ -31,6 +31,7 @@ GST_DEBUG_CATEGORY_STATIC(provider_debug);\n \n enum {\n \tPROP_DEVICE_NAME = 1,\n+\tPROP_AUTO_FOCUS_MODE = 2,\n };\n \n #define GST_TYPE_LIBCAMERA_DEVICE gst_libcamera_device_get_type()\n@@ -40,6 +41,7 @@ G_DECLARE_FINAL_TYPE(GstLibcameraDevice, gst_libcamera_device,\n struct _GstLibcameraDevice {\n \tGstDevice parent;\n \tgchar *name;\n+\tcontrols::AfModeEnum auto_focus_mode = controls::AfModeManual;\n };\n \n G_DEFINE_TYPE(GstLibcameraDevice, gst_libcamera_device, GST_TYPE_DEVICE)\n@@ -56,6 +58,7 @@ gst_libcamera_device_create_element(GstDevice *device, const gchar *name)\n \tg_assert(source);\n \n \tg_object_set(source, \"camera-name\", GST_LIBCAMERA_DEVICE(device)->name, nullptr);\n+\tg_object_set(source, \"auto-focus-mode\", GST_LIBCAMERA_DEVICE(device)->auto_focus_mode, nullptr);\n \n \treturn source;\n }\n@@ -82,6 +85,9 @@ gst_libcamera_device_set_property(GObject *object, guint prop_id,\n \tcase PROP_DEVICE_NAME:\n \t\tdevice->name = g_value_dup_string(value);\n \t\tbreak;\n+\tcase PROP_AUTO_FOCUS_MODE:\n+\t\tdevice->auto_focus_mode = static_cast(g_value_get_enum(value));\n+\t\tbreak;\n \tdefault:\n \t\tG_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);\n \t\tbreak;\n@@ -121,6 +127,14 @@ gst_libcamera_device_class_init(GstLibcameraDeviceClass *klass)\n \t\t\t\t\t\t(GParamFlags)(G_PARAM_STATIC_STRINGS | G_PARAM_WRITABLE |\n \t\t\t\t\t\t\t G_PARAM_CONSTRUCT_ONLY));\n \tg_object_class_install_property(object_class, PROP_DEVICE_NAME, pspec);\n+\tpspec = g_param_spec_enum(\"auto-focus-mode\",\n+\t\t\t\t \"Set auto-focus mode\",\n+\t\t\t\t \"Available options: AfModeManual, \"\n+\t\t\t\t \"AfModeAuto or AfModeContinuous.\",\n+\t\t\t\t gst_libcamera_auto_focus_get_type(),\n+\t\t\t\t static_cast(controls::AfModeManual),\n+\t\t\t\t G_PARAM_WRITABLE);\n+\tg_object_class_install_property(object_class, PROP_AUTO_FOCUS_MODE, pspec);\n }\n \n static GstDevice *\ndiff --git a/src/gstreamer/gstlibcamerasrc.cpp b/src/gstreamer/gstlibcamerasrc.cpp\nindex a10cbd4f..47d8ff43 100644\n--- a/src/gstreamer/gstlibcamerasrc.cpp\n+++ b/src/gstreamer/gstlibcamerasrc.cpp\n@@ -146,6 +146,7 @@ struct _GstLibcameraSrc {\n \tGstTask *task;\n \n \tgchar *camera_name;\n+\tcontrols::AfModeEnum auto_focus_mode = controls::AfModeManual;\n \n \tGstLibcameraSrcState *state;\n \tGstLibcameraAllocator *allocator;\n@@ -154,7 +155,8 @@ struct _GstLibcameraSrc {\n \n enum {\n \tPROP_0,\n-\tPROP_CAMERA_NAME\n+\tPROP_CAMERA_NAME,\n+\tPROP_AUTO_FOCUS_MODE,\n };\n \n G_DEFINE_TYPE_WITH_CODE(GstLibcameraSrc, gst_libcamera_src, GST_TYPE_ELEMENT,\n@@ -577,6 +579,18 @@ gst_libcamera_src_task_enter(GstTask *task, [[maybe_unused]] GThread *thread,\n \t\tgst_flow_combiner_add_pad(self->flow_combiner, srcpad);\n \t}\n \n+\tif (self->auto_focus_mode != controls::AfModeManual) {\n+\t\tconst ControlInfoMap &infoMap = state->cam_->controls();\n+\t\tif (infoMap.find(&controls::AfMode) != infoMap.end()) {\n+\t\t\tstate->initControls_.set(controls::AfMode, self->auto_focus_mode);\n+\t\t} else {\n+\t\t\tGST_ELEMENT_ERROR(self, RESOURCE, SETTINGS,\n+\t\t\t\t\t (\"Failed to enable auto focus\"),\n+\t\t\t\t\t (\"AfMode not supported by this camera, \"\n+\t\t\t\t\t \"please retry with 'auto-focus-mode=AfModeManual'\"));\n+\t\t}\n+\t}\n+\n \tret = state->cam_->start(&state->initControls_);\n \tif (ret) {\n \t\tGST_ELEMENT_ERROR(self, RESOURCE, SETTINGS,\n@@ -659,6 +673,9 @@ gst_libcamera_src_set_property(GObject *object, guint prop_id,\n \t\tg_free(self->camera_name);\n \t\tself->camera_name = g_value_dup_string(value);\n \t\tbreak;\n+\tcase PROP_AUTO_FOCUS_MODE:\n+\t\tself->auto_focus_mode = static_cast(g_value_get_enum(value));\n+\t\tbreak;\n \tdefault:\n \t\tG_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);\n \t\tbreak;\n@@ -676,6 +693,9 @@ gst_libcamera_src_get_property(GObject *object, guint prop_id, GValue *value,\n \tcase PROP_CAMERA_NAME:\n \t\tg_value_set_string(value, self->camera_name);\n \t\tbreak;\n+\tcase PROP_AUTO_FOCUS_MODE:\n+\t\tg_value_set_enum(value, static_cast(self->auto_focus_mode));\n+\t\tbreak;\n \tdefault:\n \t\tG_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);\n \t\tbreak;\n@@ -844,4 +864,13 @@ gst_libcamera_src_class_init(GstLibcameraSrcClass *klass)\n \t\t\t\t\t\t\t | G_PARAM_READWRITE\n \t\t\t\t\t\t\t | G_PARAM_STATIC_STRINGS));\n \tg_object_class_install_property(object_class, PROP_CAMERA_NAME, spec);\n+\n+\tspec = g_param_spec_enum(\"auto-focus-mode\",\n+\t\t\t\t \"Set auto-focus mode\",\n+\t\t\t\t \"Available options: AfModeManual, \"\n+\t\t\t\t \"AfModeAuto or AfModeContinuous.\",\n+\t\t\t\t gst_libcamera_auto_focus_get_type(),\n+\t\t\t\t static_cast(controls::AfModeManual),\n+\t\t\t\t G_PARAM_WRITABLE);\n+\tg_object_class_install_property(object_class, PROP_AUTO_FOCUS_MODE, spec);\n }\ndiff --git a/src/gstreamer/gstlibcamerasrc.h b/src/gstreamer/gstlibcamerasrc.h\nindex fdea2f10..0a88ba02 100644\n--- a/src/gstreamer/gstlibcamerasrc.h\n+++ b/src/gstreamer/gstlibcamerasrc.h\n@@ -8,6 +8,8 @@\n \n #pragma once\n \n+#include \n+\n #include \n \n G_BEGIN_DECLS\n@@ -17,3 +19,32 @@ G_DECLARE_FINAL_TYPE(GstLibcameraSrc, gst_libcamera_src,\n \t\t GST_LIBCAMERA, SRC, GstElement)\n \n G_END_DECLS\n+\n+inline GType\n+gst_libcamera_auto_focus_get_type()\n+{\n+\tstatic GType type = 0;\n+\tstatic const GEnumValue values[] = {\n+\t\t{\n+\t\t\tstatic_cast(libcamera::controls::AfModeManual),\n+\t\t\t\"AfModeManual\",\n+\t\t\t\"manual-focus\",\n+\t\t},\n+\t\t{\n+\t\t\tstatic_cast(libcamera::controls::AfModeAuto),\n+\t\t\t\"AfModeAuto\",\n+\t\t\t\"automatic-auto-focus\",\n+\t\t},\n+\t\t{\n+\t\t\tstatic_cast(libcamera::controls::AfModeContinuous),\n+\t\t\t\"AfModeContinuous\",\n+\t\t\t\"continuous-auto-focus\",\n+\t\t},\n+\t\t{ 0, NULL, NULL }\n+\t};\n+\n+\tif (!type)\n+\t\ttype = g_enum_register_static(\"GstLibcameraAutoFocus\", values);\n+\n+\treturn type;\n+}\n","prefixes":["libcamera-devel","v4"]}