eufy-sdk

@mega-yfue/eufy-sdk / VideoFrameDecoder

Class: VideoFrameDecoder ​

Decodes a single P2P video stream into H.264. Construct one per stream with the camera's 32-byte ECC private key; feed it CMD_VIDEO_FRAME payloads in order. Keyframes re-key the decoder via their ECIES envelope; P/B-frames reuse the cached media key. All failure modes (short/garbage frame, wrong key, tampered HMAC, GCM auth failure) return undefined — the decoder never throws.

Constructors ​

Constructor ​

ts
new VideoFrameDecoder(eccPrivateKey): VideoFrameDecoder;

Parameters ​

eccPrivateKey ​

Buffer

the camera's 32-byte ECC private key (P-256 scalar).

Returns ​

VideoFrameDecoder

Accessors ​

currentMediaKey ​

Get Signature ​

ts
get currentMediaKey(): Buffer<ArrayBufferLike> | undefined;

The media key recovered from the most recent keyframe, if any.

Returns ​

Buffer<ArrayBufferLike> | undefined

Methods ​

decodeFrame() ​

ts
decodeFrame(payload): DecodedVideoFrame | undefined;

Decode one video frame. Returns the keyframe flag and decrypted H.264 bytes, or undefined if the frame is malformed, the envelope/key is wrong, or GCM authentication fails.

Parameters ​

payload ​

Buffer

Returns ​

DecodedVideoFrame | undefined

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