Fix MSVC-warnings about unused variable meta in tst_qdeclarativevideooutput.cpp.

Change-Id: If324fd2e65acb7650b1d8dee4964a2c2bb17f876
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
Fix MSVC-warnings about unsafe bool operations in tst_qcamera.cpp.

qglobal.h(501) : warning C4804: '-' : unsafe use of type 'bool' in operation
global/qglobal.h(501) : warning C4800: 'int' : forcing value to bool 'true' or 'false' (performance warning)
tst_qcamera.cpp(507) : see reference to function template instantiation 'T qAbs<bool>(const T &)' being compiled

Change-Id: Ifd467b5536a0d386f592ae339129b3ebfb7b8838
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
Fix MSVC-warning about truncation of constant in tst_qaudiobuffer.cpp.

Change-Id: If9e239be38f8d15542ab9bf3a74bccf0a43b4e69
Reviewed-by: Yoann Lopes <yoann.lopes@digia.com>
Android: fix crash in QAndroidCaptureSession.

Don't try to apply video recording settings until a camera is actually
started.

Change-Id: I5348b91669835b9d776f56a3f49e3f8a11533d15
Reviewed-by: Christian Stromme <christian.stromme@digia.com>