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<concept xml:lang="en" id="GUID-8DF29A16-CC33-59D4-BB05-B628DC603A49"><title>Introduction to the Multimedia Validation Suite</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>Multimedia Validation Suite (MVS) provides a set of packages that help in development and testing of Symbian Multimedia Plugins. It also provides the example Controller and Codec plugins for the developers to base their plugins. </p> <p>The MVS consists of, </p> <ul><li id="GUID-7BAB834B-0E29-57C5-A175-33E99D086DC2"><p>a TechView GUI </p> </li> <li id="GUID-FD985A88-D836-5060-A7D8-DB694C492824"><p>a UI-independent validation engine that help in exercising the MMF API which inturn test the underlying Controller and Codec Plugins </p> </li> <li id="GUID-AB6FC673-AA3F-539C-9F67-6715537D891D"><p>a set of reference controller plugins and codecs. You can base your solutions on these, or test new products against them. </p> </li> </ul> <p>These pages describe the MVS TechView <xref href="GUID-F263A3D1-EA96-5D4B-B8C9-4B8471082DBA.dita">GUI</xref>, which you use to <xref href="GUID-4195F4EE-5A61-515D-A6EF-2E16E00E4AFF.dita">record</xref>, <xref href="GUID-5B966A81-2309-5169-963A-19E52D98A6E8.dita">play</xref>, <xref href="GUID-0F09110F-3C4C-57D9-BA7D-19DD9A06B33B.dita">edit</xref> and <xref href="GUID-E5291BCB-D5D0-5175-B0A1-FE03CD14E1BD.dita">configure</xref> audio and video files. </p> <p><b>Log Files </b> </p> <p>All events during a session - your actions and the MVS's responses - are recorded in the event log file, <filepath>C:\logs\LogMVSappUi\LogFile.txt</filepath>. Each record in the file has the format: </p> <codeblock id="GUID-CC7B67EE-D81B-50B5-9E76-B7C912E08ED3" xml:space="preserve">Date: Time: Actions / Errors</codeblock> <p>If an error occurs during a session, you can check the contents of this file to help determine the cause. You can also <xref href="GUID-E5291BCB-D5D0-5175-B0A1-FE03CD14E1BD.dita">clear the contents of the file</xref>. </p> <p><b>Session settings </b> </p> <p>When you start the MVS, it uses the following settings from the previous session: </p> <ul><li id="GUID-8D1F1BFF-BD35-5BCF-AA5B-CBEA756440A4"><p>last play format </p> </li> <li id="GUID-E373DE1A-D471-588D-8E8C-D0A90E77D7E2"><p>last folder played from </p> </li> <li id="GUID-7A246A08-DEA8-5E6D-B908-AE19547F32E2"><p>last folder recorded to </p> </li> <li id="GUID-F08F04A2-81D5-55E5-ABC2-120AFDEBDDC4"><p>last drive selected </p> </li> <li id="GUID-9E9DC09E-06E2-5507-A28B-8D8B61CF48B7"><p>sound volume </p> </li> <li id="GUID-AF953D41-DA82-5126-911F-9E77510F7A16"><p>sound gain </p> </li> <li id="GUID-84CCB6E7-50CD-58E7-9394-9674A5C21AD4"><p>stereo balance </p> </li> <li id="GUID-CDE2928E-BE30-59DC-AE61-EED69402457F"><p>file play on open. </p> </li> </ul> </conbody></concept>