<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Lucida Console";
panose-1:2 11 6 9 4 5 4 2 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.E-mailStlus17
{mso-style-type:personal-compose;
font-family:"Arial",sans-serif;
color:windowtext;
font-weight:normal;
font-style:normal;
text-decoration:none none;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:70.85pt 70.85pt 70.85pt 70.85pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=HU link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>Hi Guys,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>Newbie here, who posted his first Sailfish app to the Harbour today :-) I've already posted this at <b>together.jolla.com</b>, but was kindly asked to post app development related questions to this mail list instead. So here it goes:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>I'm trying to detect the available cameras in the device, and get some basic properties of them, like still image resolution (which should equal to image sensor resolution), video recording resolution, presence of LED flash, etc. I'm trying QT calls from C++ code like this:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'>QCameraInfo::defaultCamera().deviceName()<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'>QList<QCameraInfo> cameras = QCameraInfo::availableCameras();<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'>QList<QByteArray> devices = QCamera::availableDevices();<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>It doesn't seem to work at all on the Jolla Phone, it runs very slowly and causes the app to hang for seconds. And it returns 9 camera devices, from /dev/video0 through /dev/video8 on the Jolla Tablet, which is even more strange. What am I doing wrong?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>I've tried the QML way as well, but it acts similarly bad as the C++ way. Here's the code that fails to work:<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'>import QtMultimedia 5.4<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'>Page {<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'> property int availCam: QtMultimedia.availableCameras.length<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Lucida Console";color:#2E75B6;mso-style-textfill-fill-color:#2E75B6;mso-style-textfill-fill-alpha:100.0%'>}<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>It takes a long time to return 0 as length, just like under C++. Maybe the QCamera implemenation in SFOS cannot provide the list of available cameras at all? If so, then how can I detect the presence of cameras, and how to select the front or rear camera, to let me then detect its capabilities?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Arial",sans-serif'>Tamas<o:p></o:p></span></p></div></body></html>