# Exporting

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Nx Witness provides powerful and flexible export capabilities. It is possible to export from a single device or Bookmark, and to export multiple videos simultaneously for synchronous playback. Options are also available to add a timestamp, logo, image processing filters, and similar metadata. Export is performed in background, so it is possible to continue working with Nx Witness until it completes.

Note: Export is only available to u sers with the appropriate permissions. E xport archive permission is required for any export operation. See "Introducing User Roles" for details.

Export options include:

•Single Camera Export – Exports archive from a single camera.

•Multi-Video Export – Exports in a proprietary format for playback using Nx Mobile, or as executable bundle that can be viewed on any Windows computer.

•Export Bookmark – Exports a Bookmark.

•Rapid Review Export – Exports video in fast-forward mode for rapid review. Video must be at least 10 seconds long for this option to be available.

•Checking the Validity of Exported Videos – determines if any modifications were performed to exported footage.

IMPORTANT: F iles produced with the x64 version of software will only be viewable on Windows x64; however, x86 files can be viewed on any architecture.

The following file formats are supported for single camera exports

•MKV – Matroska (.mkv) is a more advanced format that may not be supported on some devices (ex: home media players). It does not restrict video and audio content. (Single camera only.)

•AVI – Audio video interleave (.avi) is more widely used, but the codec remains intact (H264). To view exported videos in other players may require additional codecs. Additionally, some codecs are not allowed in AVI format. A warning message will appear. (Single camera only.)

•MP4 – MPEG-4 Part 14 (.mp4) is another advanced format, but also may not be played back on some devices (ex: home media players). It does not restrict video and audio content. (Single camera only.)

•NOV – Network Optix x64 Media file (.nov), a proprietary format. Can be opened by Nx Witness client only.

•EXE – a platform dependent (x86 or x64) executable bundle. Can be opened without Nx Witness installed on the computer. Can be edited once exported. The EXE format is used for distributing videos to the users who do not have any codecs or media players installed. When the executable is opened, the client launches and plays the exported video. Motion detection and data processing in the recorded segments is retained in the export.

The following file formats are supported for multivideo exports (see above for explanation)

•NOV

•EXE

•NOV (Read-Only) – Cannot be edited after export.

•EXE (Read-Only) – Cannot be edited after export.

I f a long period of time is selected for export, the following warning message will appear: You are about to export a long video. It may require over a gigabyte of HDD space and take several minutes to complete. As soon as export is finished, the video will be available under Local Files in the Resource Tree.

IMPORTANT: An exported video will only be available until the client restarts. To make it available permanently, save the exported video to the Nx Witness Media Folder (see “Configuring Media Folders”). Alternately, you can create and save a l ayout that contains the exported video(s). See "Viewing Exported Video" for more information.

To export a video segment

1.Select the desired item(s) in layout.

2.Use the Timeline to select the desired video segment. (See instructions for how to select a time segment in "Timeline".)

3.Right-click on the selected time segment to open the context menu and choose Export Video.

Optional filters and overlays are available for .mkv, .avi, and .mp4 export formats. Note that i f more than one option is selected, they will be layered on top of each other.

The following optional filters and overlays are available

Note: Including filters or overlay options requires transcoding, which will increase CPU usage and export time significantly.

•Apply Filters – Check this box to apply image filters from the source recording (for example, Image Enhancement, Forcing Aspect Ratio, Camera Orientation, Dewarping ) to the exported video.

•Timestamp – Adds a timestamp to the upper left corner in Long (day of week, date, month, and year, hour:minute:seconds and UTC differential) or Short (dd/mm/yyyy hh:mm), ISO8601, or RFC2822 format. Font Size is also adjustable.

•Image – Browse for an image, often a logo, to add to the upper left corner. There are sliders for Opacity and Size.

•Text – Adds the text of your choice to the upper left corner. You can set the Width of the text field and the Font Size.

•Rapid Review – Exports video at higher playback speed than the original recording. See "Rapid Review Export".

4. Click Export. A status dialog will display export progress as a percentage. Clicking Stop Export will cancel the operation so that no exported data is saved.