video_VDAStress is a sever test.
It executes video_VideoDecodeAccelerator on several streams one by one.
The tested videos are stored in gs://chromeos-test-assetrs-private/VDA/.
By adding a new test video there, video_VDAStress would execute video_VideoDecodeAccelerator on the stream.
If it runs periodically on lab, it would be useful.

Those video streams perhaps are old and might need to be updated to the official conformance streams as in upstream.

Referred pages are like,
https://github.com/webmproject/vp8-test-vectors/
http://fate-suite.ffmpeg.org/vp9-test-vectors/