[{"id":2168,"web_url":"https://patchwork.libcamera.org/comment/2168/","msgid":"<20190704203346.GC5024@pendragon.ideasonboard.com>","date":"2019-07-04T20:33:46","subject":"Re: [libcamera-devel] [PATCH v4 5/6] qcam: Update window title with\n\tFPS","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"Hi Kieran,\n\nThank you for the patch.\n\nOn Thu, Jul 04, 2019 at 03:59:41PM +0100, Kieran Bingham wrote:\n> Provide an average FPS in the QCam title bar to show the current rate of\n> frame processing.\n> \n> The QCam compilation is updated to process the QT MoC headers to support\n\ns/QT/Qt/\n\n> signals and slots accordingly.\n> \n> Signed-off-by: Kieran Bingham \n> \n> ---\n> v4\n> - Start and stop title timer with the stream\n> ---\n> src/qcam/main_window.cpp | 23 +++++++++++++++++++++++\n> src/qcam/main_window.h | 15 +++++++++++++++\n> src/qcam/meson.build | 11 +++++++++--\n> 3 files changed, 47 insertions(+), 2 deletions(-)\n> \n> diff --git a/src/qcam/main_window.cpp b/src/qcam/main_window.cpp\n> index d61369109d66..5693b9256a08 100644\n> --- a/src/qcam/main_window.cpp\n> +++ b/src/qcam/main_window.cpp\n> @@ -28,6 +28,7 @@ MainWindow::MainWindow(const OptionsParser::Options &options)\n> \n> \ttitle_ = \"QCam \" + QString::fromStdString(libcamera::version);\n> \tsetWindowTitle(title_);\n> +\tconnect(&titleTimer_, SIGNAL(timeout()), this, SLOT(updateTitle()));\n> \n> \tviewfinder_ = new ViewFinder(this);\n> \tsetCentralWidget(viewfinder_);\n> @@ -54,6 +55,19 @@ MainWindow::~MainWindow()\n> \tCameraManager::instance()->stop();\n> }\n> \n> +void MainWindow::updateTitle()\n> +{\n> +\tunsigned int duration = frameRateInterval_.elapsed();\n> +\tunsigned int frames = framesCaptured_ - previousFrames_;\n> +\tdouble fps = frames * 1000.0 / duration;\n> +\n> +\t/* Restart counters */\n\ns/counters/counters./\n\n> +\tframeRateInterval_.start();\n> +\tpreviousFrames_ = framesCaptured_;\n> +\n> +\tsetWindowTitle(title_ + \" : \" + QString::number(fps, 'f', 2) + \" fps\");\n> +}\n> +\n> int MainWindow::openCamera()\n> {\n> \tCameraManager *cm = CameraManager::instance();\n> @@ -148,6 +162,10 @@ int MainWindow::startCapture()\n> \t\trequests.push_back(request);\n> \t}\n> \n> +\ttitleTimer_.start(2000);\n> +\tframeRateInterval_.start();\n> +\tpreviousFrames_ = 0;\n> +\tframesCaptured_ = 0;\n> \tlastBufferTime_ = 0;\n> \n> \tret = camera_->start();\n> @@ -188,6 +206,9 @@ void MainWindow::stopCapture()\n> \tisCapturing_ = false;\n> \n> \tconfig_.reset();\n> +\n> +\ttitleTimer_.stop();\n> +\tsetWindowTitle(title_);\n> }\n> \n> void MainWindow::requestComplete(Request *request,\n> @@ -196,6 +217,8 @@ void MainWindow::requestComplete(Request *request,\n> \tif (request->status() == Request::RequestCancelled)\n> \t\treturn;\n> \n> +\tframesCaptured_++;\n> +\n> \tBuffer *buffer = buffers.begin()->second;\n> \n> \tdouble fps = buffer->timestamp() - lastBufferTime_;\n> diff --git a/src/qcam/main_window.h b/src/qcam/main_window.h\n> index 46a494a9d783..e97d92402f1e 100644\n> --- a/src/qcam/main_window.h\n> +++ b/src/qcam/main_window.h\n> @@ -10,7 +10,11 @@\n> #include \n> #include \n> \n> +\n\nNo need for this blank line.\n\n> +#include \n> #include \n> +#include \n> +#include \n> \n> #include \n> #include \n> @@ -28,10 +32,15 @@ enum {\n> \n> class MainWindow : public QMainWindow\n> {\n> +\tQ_OBJECT\n> +\n> public:\n> \tMainWindow(const OptionsParser::Options &options);\n> \t~MainWindow();\n> \n> +public Q_SLOTS:\n> +\tvoid updateTitle();\n\nCan't you make this private ?\n\nWith those small issues fixed,\n\nReviewed-by: Laurent Pinchart \n\n> +\n> private:\n> \tint openCamera();\n> \n> @@ -43,6 +52,8 @@ private:\n> \tint display(Buffer *buffer);\n> \n> \tQString title_;\n> +\tQTimer titleTimer_;\n> +\n> \tconst OptionsParser::Options &options_;\n> \n> \tstd::shared_ptr camera_;\n> @@ -51,6 +62,10 @@ private:\n> \n> \tuint64_t lastBufferTime_;\n> \n> +\tQElapsedTimer frameRateInterval_;\n> +\tuint32_t previousFrames_;\n> +\tuint32_t framesCaptured_;\n> +\n> \tViewFinder *viewfinder_;\n> };\n> \n> diff --git a/src/qcam/meson.build b/src/qcam/meson.build\n> index 9f1fa75f9813..21f91f25cec0 100644\n> --- a/src/qcam/meson.build\n> +++ b/src/qcam/meson.build\n> @@ -7,14 +7,21 @@ qcam_sources = files([\n> 'viewfinder.cpp',\n> ])\n> \n> -import('qt5')\n> +qcam_moc_headers = files([\n> + 'main_window.h',\n> +])\n> +\n> +qt5 = import('qt5')\n> qt5_dep = dependency('qt5',\n> method : 'pkg-config',\n> modules : ['Core', 'Gui', 'Widgets'],\n> required : false)\n> \n> if qt5_dep.found()\n> - qcam = executable('qcam', qcam_sources,\n> + moc_files = qt5.preprocess(moc_headers: qcam_moc_headers,\n> + dependencies: qt5_dep)\n> +\n> + qcam = executable('qcam', qcam_sources, moc_files,\n> install : true,\n> dependencies : [libcamera_dep, qt5_dep],\n> cpp_args : '-DQT_NO_KEYWORDS')","headers":{"Return-Path":"","Received":["from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 73C03600F9\n\tfor ;\n\tThu, 4 Jul 2019 22:34:07 +0200 (CEST)","from pendragon.ideasonboard.com\n\t(dfj612yhrgyx302h3jwwy-3.rev.dnainternet.fi\n\t[IPv6:2001:14ba:21f5:5b00:ce28:277f:58d7:3ca4])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id EBB9E24B;\n\tThu, 4 Jul 2019 22:34:06 +0200 (CEST)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1562272447;\n\tbh=hMQ+kMEBQNSd/F7MxdTZSkz/NkGTezD1nLwGOUCN9Nc=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=DTJstOwwS9vaQf4XECPQdQ09W5B1La9ES9j1eNOBxn7JqDkkyx01aiSMpCK8T3oL/\n\teQa890jsXThv9yRHEiJdCorN2WvoqE4SGAKTKYy1obMe8mTGctLqRCieyTWEcZSpu0\n\tQaagEuS4YOO/tTveqCs2P6IdADqfggi9NLjWDrhI=","Date":"Thu, 4 Jul 2019 23:33:46 +0300","From":"Laurent Pinchart ","To":"Kieran Bingham ","Cc":"LibCamera Devel ","Message-ID":"<20190704203346.GC5024@pendragon.ideasonboard.com>","References":"<20190704145942.17879-1-kieran.bingham@ideasonboard.com>\n\t<20190704145942.17879-6-kieran.bingham@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","In-Reply-To":"<20190704145942.17879-6-kieran.bingham@ideasonboard.com>","User-Agent":"Mutt/1.10.1 (2018-07-13)","Subject":"Re: [libcamera-devel] [PATCH v4 5/6] qcam: Update window title with\n\tFPS","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.23","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","X-List-Received-Date":"Thu, 04 Jul 2019 20:34:07 -0000"}},{"id":2173,"web_url":"https://patchwork.libcamera.org/comment/2173/","msgid":"<86072ce4-e827-933e-6ee7-f3a810607ae3@ideasonboard.com>","date":"2019-07-04T21:00:55","subject":"Re: [libcamera-devel] [PATCH v4 5/6] qcam: Update window title with\n\tFPS","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"Hi Laurent,\n\nOn 04/07/2019 21:33, Laurent Pinchart wrote:\n> Hi Kieran,\n> \n> Thank you for the patch.\n> \n> On Thu, Jul 04, 2019 at 03:59:41PM +0100, Kieran Bingham wrote:\n>> Provide an average FPS in the QCam title bar to show the current rate of\n>> frame processing.\n>>\n>> The QCam compilation is updated to process the QT MoC headers to support\n> \n> s/QT/Qt/\n\nAdjusted\n\n> \n>> signals and slots accordingly.\n>>\n>> Signed-off-by: Kieran Bingham \n>>\n>> ---\n>> v4\n>> - Start and stop title timer with the stream\n>> ---\n>> src/qcam/main_window.cpp | 23 +++++++++++++++++++++++\n>> src/qcam/main_window.h | 15 +++++++++++++++\n>> src/qcam/meson.build | 11 +++++++++--\n>> 3 files changed, 47 insertions(+), 2 deletions(-)\n>>\n>> diff --git a/src/qcam/main_window.cpp b/src/qcam/main_window.cpp\n>> index d61369109d66..5693b9256a08 100644\n>> --- a/src/qcam/main_window.cpp\n>> +++ b/src/qcam/main_window.cpp\n>> @@ -28,6 +28,7 @@ MainWindow::MainWindow(const OptionsParser::Options &options)\n>> \n>> \ttitle_ = \"QCam \" + QString::fromStdString(libcamera::version);\n>> \tsetWindowTitle(title_);\n>> +\tconnect(&titleTimer_, SIGNAL(timeout()), this, SLOT(updateTitle()));\n>> \n>> \tviewfinder_ = new ViewFinder(this);\n>> \tsetCentralWidget(viewfinder_);\n>> @@ -54,6 +55,19 @@ MainWindow::~MainWindow()\n>> \tCameraManager::instance()->stop();\n>> }\n>> \n>> +void MainWindow::updateTitle()\n>> +{\n>> +\tunsigned int duration = frameRateInterval_.elapsed();\n>> +\tunsigned int frames = framesCaptured_ - previousFrames_;\n>> +\tdouble fps = frames * 1000.0 / duration;\n>> +\n>> +\t/* Restart counters */\n> \n> s/counters/counters./\n\nAdded,\n\n> \n>> +\tframeRateInterval_.start();\n>> +\tpreviousFrames_ = framesCaptured_;\n>> +\n>> +\tsetWindowTitle(title_ + \" : \" + QString::number(fps, 'f', 2) + \" fps\");\n>> +}\n>> +\n>> int MainWindow::openCamera()\n>> {\n>> \tCameraManager *cm = CameraManager::instance();\n>> @@ -148,6 +162,10 @@ int MainWindow::startCapture()\n>> \t\trequests.push_back(request);\n>> \t}\n>> \n>> +\ttitleTimer_.start(2000);\n>> +\tframeRateInterval_.start();\n>> +\tpreviousFrames_ = 0;\n>> +\tframesCaptured_ = 0;\n>> \tlastBufferTime_ = 0;\n>> \n>> \tret = camera_->start();\n>> @@ -188,6 +206,9 @@ void MainWindow::stopCapture()\n>> \tisCapturing_ = false;\n>> \n>> \tconfig_.reset();\n>> +\n>> +\ttitleTimer_.stop();\n>> +\tsetWindowTitle(title_);\n>> }\n>> \n>> void MainWindow::requestComplete(Request *request,\n>> @@ -196,6 +217,8 @@ void MainWindow::requestComplete(Request *request,\n>> \tif (request->status() == Request::RequestCancelled)\n>> \t\treturn;\n>> \n>> +\tframesCaptured_++;\n>> +\n>> \tBuffer *buffer = buffers.begin()->second;\n>> \n>> \tdouble fps = buffer->timestamp() - lastBufferTime_;\n>> diff --git a/src/qcam/main_window.h b/src/qcam/main_window.h\n>> index 46a494a9d783..e97d92402f1e 100644\n>> --- a/src/qcam/main_window.h\n>> +++ b/src/qcam/main_window.h\n>> @@ -10,7 +10,11 @@\n>> #include \n>> #include \n>> \n>> +\n> \n> No need for this blank line.\n\n\nRemoved,\n\n> \n>> +#include \n>> #include \n>> +#include \n>> +#include \n>> \n>> #include \n>> #include \n>> @@ -28,10 +32,15 @@ enum {\n>> \n>> class MainWindow : public QMainWindow\n>> {\n>> +\tQ_OBJECT\n>> +\n>> public:\n>> \tMainWindow(const OptionsParser::Options &options);\n>> \t~MainWindow();\n>> \n>> +public Q_SLOTS:\n>> +\tvoid updateTitle();\n> \n> Can't you make this private ?\n> \n\nYes, it seems I can.\n\n\n> With those small issues fixed,\n> \n> Reviewed-by: Laurent Pinchart \n\nCollected, thanks.\n\n\n> \n>> +\n>> private:\n>> \tint openCamera();\n>> \n>> @@ -43,6 +52,8 @@ private:\n>> \tint display(Buffer *buffer);\n>> \n>> \tQString title_;\n>> +\tQTimer titleTimer_;\n>> +\n>> \tconst OptionsParser::Options &options_;\n>> \n>> \tstd::shared_ptr camera_;\n>> @@ -51,6 +62,10 @@ private:\n>> \n>> \tuint64_t lastBufferTime_;\n>> \n>> +\tQElapsedTimer frameRateInterval_;\n>> +\tuint32_t previousFrames_;\n>> +\tuint32_t framesCaptured_;\n>> +\n>> \tViewFinder *viewfinder_;\n>> };\n>> \n>> diff --git a/src/qcam/meson.build b/src/qcam/meson.build\n>> index 9f1fa75f9813..21f91f25cec0 100644\n>> --- a/src/qcam/meson.build\n>> +++ b/src/qcam/meson.build\n>> @@ -7,14 +7,21 @@ qcam_sources = files([\n>> 'viewfinder.cpp',\n>> ])\n>> \n>> -import('qt5')\n>> +qcam_moc_headers = files([\n>> + 'main_window.h',\n>> +])\n>> +\n>> +qt5 = import('qt5')\n>> qt5_dep = dependency('qt5',\n>> method : 'pkg-config',\n>> modules : ['Core', 'Gui', 'Widgets'],\n>> required : false)\n>> \n>> if qt5_dep.found()\n>> - qcam = executable('qcam', qcam_sources,\n>> + moc_files = qt5.preprocess(moc_headers: qcam_moc_headers,\n>> + dependencies: qt5_dep)\n>> +\n>> + qcam = executable('qcam', qcam_sources, moc_files,\n>> install : true,\n>> dependencies : [libcamera_dep, qt5_dep],\n>> cpp_args : '-DQT_NO_KEYWORDS')\n>","headers":{"Return-Path":"","Received":["from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id F39B26156B\n\tfor ;\n\tThu, 4 Jul 2019 23:00:58 +0200 (CEST)","from [192.168.0.20]\n\t(cpc89242-aztw30-2-0-cust488.18-1.cable.virginm.net [86.31.129.233])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 5419524B;\n\tThu, 4 Jul 2019 23:00:58 +0200 (CEST)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1562274058;\n\tbh=a3gMGONkwM90gXZTBQgiSlWpzFnt0KLaB4scGTU7kGk=;\n\th=Reply-To:Subject:To:Cc:References:From:Date:In-Reply-To:From;\n\tb=LwF4+9g0qN/HEX71Su3wMOqEj1/wrJ5Is9eX9VvVtJAQA/Lg1Yowh/GbtGzFrjlan\n\t+JXizae27pJDpp+VKuPkioB1qui0AKPILn6zgEAm6muj3RC+6/P3KSNsQF4CA/ikvb\n\tQG5ER1KZOKQ5dC9vWmsYO+2QTz8mzOLr9WmV3KpY=","Reply-To":"kieran.bingham@ideasonboard.com","To":"Laurent Pinchart ","Cc":"LibCamera Devel ","References":"<20190704145942.17879-1-kieran.bingham@ideasonboard.com>\n\t<20190704145942.17879-6-kieran.bingham@ideasonboard.com>\n\t<20190704203346.GC5024@pendragon.ideasonboard.com>","From":"Kieran Bingham ","Openpgp":"preference=signencrypt","Autocrypt":"addr=kieran.bingham@ideasonboard.com; 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