Openworld FlashPresenter

How to Join Video Clips Into Continuous Video File:

You might wish to join your video clips into one single videofile to use it in your Openworld FlashPresenter Presentation. For example you created a short video clips for PowerPoint presentation and now you'd like to use them in your Openworld FlashPresenter project. Also please note, that FLV Video Encoder, used in The Openworld FlashPresenter supports only few basic video compression formats for source video. Such are MPEG-I, MPEG-II, MS MPEG-4 formats. So, you can't use it directly if your video is recorded in some more advanced video formats like Windows Media 9 (a.k.a. WMV3) format and some other.

The main purpose of this tool is to join your source video clips into one continuous video file with supported video compression format without exra quality losses. You can choose the appropriate video / audio codecs using the Video Encoding Preferences page. Then you can use Video Joiner tool to concatenate your video clps into one video file of a supported format.

WARNING! You must have all source clips of the same screen format to get a valid result! Please be sure that you concatenate appropriate video clips before using this tool!

How Video Joiner looks:

How Video Joiner works:

All you need to do to start joining process is to create the source files sequence and assign the target file name.

"Add Video" button adds a source video clip into the sequence. You can change the files order clicking Up/Down buttons at right from the file list.

"Delete Video" button deletes video file from the video clips sequence. The source clip file is not deleted from your computer by this operation.

Options lets you choose encoding parameters by adjusting video codec properties. You can see usual video codec properties page here. It will depend on the codec chosen, how this page will look, but in any case you can find two meaningful options there:

Key Frame Interval It affects to the target file size. The higher is the value the less is the file size if there are no fast motion scenes in the movie. On the other hand high values, set here, may lead to inaccurate navigation in the resulting (streaming FLV) video, after you'll use the converted video in the FLV Video Encoder. So, it is recommended do not set values, higher than 1 sec. here, what gives one key frame per approx 25 frames. Also please note that actual keyframe rate will depend on the target bitrate, set in FLV Video Encoder parameters before encoding. Low bitrates will lead to higher keyframe interval value, but (naturally) will produce video of worse quality.

Target Bitrate defines the bitrate in the converted video. It is not recommended to set low values here. You main goal now is to get video file of supported format. Later (in FLV Video Encoder) you'll can choose the target bitrate for your FLV video and even produce several videos with different bitrates using the same source video file, e.g. to deliver your content to several target audiences.

"Join" button starts the joining process.

You can preview the joined video to check its quality and change encoding parameters if you're not satisfied by the quality or the target file size.

IMPORTANT! Using free version of the DivX codec you may see a logo, appearing at the bottom right screen corner of the video frame, when you preview encoded video file. This logotype appears on screen only -- it is not embedded into your file. Therefore your final FLV video file will be free from this logotype.