The windows base OS does not interact with the metadata file in a .flv file even with codecs as most codecs are built to play a file not analyse it for you OS.
The metadata stored in a .flv file is as follows:
- "duration" - 64-bit IEEE floating point value in seconds
- "width" and "height" – 64-bit IEEE floating point value in pixels
- "framerate" – 64-bit IEEE floating point value in frames per second
- "keyframes" – an array with the positions of p-frames, needed when random access is sought.
- "|AdditionalHeader" - an array of required stream decoding informational pairs
- "Encryption" - an array of required encryption informational pairs
- "Metadata" - Base64 encoded string of Adobe Access DRM scheme data containing the decryption key required
In the end flv, f4v, ect... are designed for use as embedded video. Windows has probably not built in this functionality due to this but you can always write your own dll files to handle this or find 3rd party software such as flvmdv to view this meta data