Formats → Hikvision
Hikvision mobile and site recorders. We convert these exports to standard MP4 with a browser-based player, without re-encoding the recorded video.
The footage is wrapped in a proprietary container that Hikvision's own player expects to open, and the GPS track inside it is obfuscated rather than stored plainly, so ordinary tools see the video at best and the position data not at all.
The usual result is that the footage exists, is perfectly good, and cannot be watched by the person who needs to watch it — because the only software that opens it is the manufacturer's own, it is Windows-only, and the machine it needs to run on is locked down.
Extensions get reused and renamed, so the reliable test is the first few bytes of the file. On any machine, without installing anything:
xxd -s 0 -l 16 "your-file.hvv" # macOS / Linux
certutil -dump "your-file.hvv" # WindowsA Hikvision export begins 49 4D 4B 48 — the ASCII characters "IMKH", Hikvision's own container marker.
A Hikvision export folder holds one directory per camera — the sample in front of us has Cam 02, Cam 03, Cam 04 and Cam 07 — and each of those carries a complete private copy of the player: 140 DLLs and Player.exe, duplicated for every camera. That is why a four-camera half-hour export arrives at 640 MB.
Nothing plays without Hikvision's own player, and a recent export is H.265 — which some tools will open and then silently fail to carry an integrity check across.
Taken from the recorder's own timing. Where an export covers a longer period than the footage it actually holds — because the camera dropped frames — the shortfall is measured and stated on the certificate per camera rather than quietly smoothed over.
Read by ffmpeg, natively.
The container is demuxed directly and the encrypted GPS track is decoded to a synced map. Recent Hikvision exports are H.265, which is handled the same way as H.264 — copied, not re-encoded, and digested either side so the certificate still proves the pictures are unaltered.
The coded video itself is copied, never re-encoded. That is the point: what you receive is the recorded image, not a compressed copy of it.
One standard MP4 per camera, a browser player with every camera on a shared timeline, and a certificate digesting the coded picture data before and after — which match, because the video is copied rather than re-encoded. What every conversion includes → · How the check works →
One credit converts up to 4.7 GB. Your first conversion is free. Pricing →
Not sure whether yours will convert? Send us one .hvv export that has given you trouble. We will tell you whether it converts, usually the same day, and there is no charge for finding out.
Try it — first conversion free or email enquiries@veriframe.co.uk
Hikvision mobile and site recorders. The footage is wrapped in a proprietary container that Hikvision's own player expects to open, and the GPS track inside it is obfuscated rather than stored plainly, so ordinary tools see the video at best and the position data not at all.
Because it is a proprietary Hikvision format. General-purpose players such as VLC, Windows Media Player and QuickTime are not built to read it and usually show nothing or refuse the file. In practice: Nothing plays without Hikvision's own player, and a recent export is H.265 — which some tools will open and then silently fail to carry an integrity check across.
As it stands, .hvv opens only in Hikvision's own player, which is Windows-only and often has to run on a locked-down machine. The dependable way to open it anywhere — any operating system, no install — is to convert it to MP4, which is what we do. The recorded video is copied, not re-encoded, so what you watch is the recorded image itself.
Send us the .hvv export — ideally the whole folder as the recorder wrote it. We convert it to standard MP4, one file per camera, with a browser player and a certificate that digests the coded picture before and after so the result can be verified independently. The first conversion is free. If it turns out not to convert, we may ask for the player it shipped with so we can make it work.