How to merge two .mp4 files into one file?---Help!

Question

When two clients make viedo chats on FMS,FMS saves two clients' audio and video informations into two seperate mp4 files.
Now I want to get one mp4 file which contaions one cilent's audio and video informations and another client's audio information when recording
Is there any way to deal with this problem?
Thanks in advance..

Answer 1

Hi Tibor,
Below is the output i got.
[Tracer_2]<?xml version="1.0" encoding="UTF-8"?><Rowsets DateCreated="2015-04-05T23:22:05" EndDate="2015-04-03T11:10:27" StartDate="2015-04-03T11:10:27" Version="14.0 SP5 Patch 11 (Aug 27, 2014)">
    <Rowset>
        <Columns>
            <Column Description="" MaxRange="100" MinRange="0" Name="col1" SQLDataType="1" SourceColumn="col1"/>
            <Column Description="" MaxRange="100" MinRange="0" Name="col2" SQLDataType="1" SourceColumn="col2"/>
            <Column Description="" MaxRange="100" MinRange="0" Name="col3" SQLDataType="1" SourceColumn="col3"/>
        </Columns>
        <Row>
            <col1>1</col1>
            <col2>2</col2>
            <col3>3</col3>
        </Row>
        <Row>
            <col1>11</col1>
            <col2>22</col2>
            <col3>33</col3>
        </Row>
        <Row>
            <col1>a</col1>
            <col2>b</col2>
            <col3>c</col3>
        </Row>
    </Rowset>
</Rowsets>
Please find the image below to achieve this. Please note, I have used local variables to assign input xmls and repeat through it. Repeater_0 for Headers and Repeater_1 for body.
Kindly ignore Doc_0 here, it's for another purpose. Document_1 is what we are focussing on.
Please note, you would not be able to see columns as those are dynamically created. Still you can map it as shown above.
Hope this helps.
Best Regards,
Swaroop