ProjectRenderer: fixed bug introduced by 1b91b599b...

There's been a missing evaluation of _os.depth in the 2nd ternary
operator which caused depth of filetype always be 24 bit even if 16 bit
was selected.

src/core/project_renderer.cpp

@@ -84,7 +84,8 @@ projectRenderer::projectRenderer( const mixer::qualitySettings & _qs,
 				_os.samplerate, DEFAULT_CHANNELS, success_ful,
 				_out_file, _os.vbr,
 				_os.bitrate, _os.bitrate - 64, _os.bitrate + 64,
-				_os.depth == Depth_32Bit ? 32 : (Depth_24Bit ? 24 : 16),
+				_os.depth == Depth_32Bit ? 32 :
+					( _os.depth == Depth_24Bit ? 24 : 16 ),
 							engine::getMixer() );
 	if( success_ful == FALSE )
 	{