MetaVR VRSG Real-time Video Recording
On the Record tab of the VRSG Dashboard you can record video of VRSG-generated scenes in H.264 format. With a current high-end game-level Nvidia 3D graphics card , you can potentially record HD resolution videos at 60 frames-per-second (fps) for either network streaming or file-based recorded output. You can encode UAV KLV metadata into the video stream to stimulate tactical systems that can exploit that data.
The H.264 recording plugin supports the latest generation of Nvidia's GPUs which have a hardware H.264 video encoding chip. The benefit of this dedicated H.264 chip is that most of the processing power of the GPU is available for other tasks.
Using VRSG's recording feature, MetaVR has made several real-time recordings of scenarios created in VRSG Scenario Editor and rendered in VRSG. The scenarios feature 3D terrain databases built by MetaVR and entities from MetaVR's 3D content libraries.
Tactical exploitation systems can use the streaming video feed to visualize sensor payload imagery in real time and extract the UAV metadata. On the Record tab are options to record UAV KLV metadata multiplexed into an MPEG2 transport stream. When one of the two UAV telemetry encoding options is selected, VRSG generates a transport stream with two embedded streams: one for video and another for the selected KLV metadata. The GV 3.0 viewer and metadata editor, a GOTS tool, is one system that can play the MPEG stream and decode the KLV metadata. To simply view the recorded video (without decoded metadata), you can use MPEG players such as QuickTime or VLC.
Some long-haul networked environments do not have the bandwidth to handle the streaming of digital video. In such cases, a site can set up a UAV regeneration station which is a local VRSG computer configured to reproduce the UAV video of a remote VRSG computer. A given VRSG in UAV Master mode can transmit telemetry packets to a remote VRSG client, where in turn the remote VRSG reproduces the same picture. The bandwidth required to send the telemetry is a small fraction of the bandwidth required for digital video, and is suitable for the modest bandwidth of long-haul networks. The local VRSG can be configured to generate H.264 streaming digital video, which would be constrained to the local area network for the purposes of stimulating ROVER devices or other tactical displays.
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