add classes for audio & video devices, implemented video device enumeration for Linux

1 files changed, 40 insertions, 0 deletions

diff --git a/pica-client/videodevice.cpp b/pica-client/videodevice.cpp
new file mode 100644
index 0000000..75b516b
--- /dev/null
+++ b/pica-client/videodevice.cpp
@@ -0,0 +1,40 @@
+#include "videodevice.h"
+#include <QFile>
+
+VideoDevice::VideoDevice()
+{
+
+}
+
+VideoDevice::~VideoDevice()
+{
+
+}
+
+QList<MediaDeviceInfo> VideoDevice::Enumerate()
+{
+	QList<MediaDeviceInfo> result;
+	int index = 0;
+#ifdef Q_OS_LINUX
+	for (int i = 0; i < 64; i++)
+	{
+		QString device = QString(QLatin1String("/dev/video%1")).arg(i);
+		if (QFile::exists(device))
+		{
+			MediaDeviceInfo d;
+			d.device = device;
+
+			QFile v4l2_name(QString(QLatin1String("/sys/class/video4linux/video%1/name")).arg(i));
+			if (v4l2_name.open((QIODevice::ReadOnly | QIODevice::Text)))
+			{
+				d.humanReadable = QString(v4l2_name.readLine()).trimmed();
+				v4l2_name.close();
+			}
+			d.index = index++;
+
+			result << d;
+		}
+	}
+#endif
+	return result;
+}