Memory Reuse and Decode Length

[w3c]

Memory Reuse and Decode Length

[padenot]

The discussion in #39 is related. In general Bring You Own Buffer (often refered to as BYOB) are favored these days when designing new specs.

[chcunningham]

We've had the BYOB request from WASM folks as well, and we're keen to do something here. Unfortunately, using a SAB for output creates security concerns because the decoder may internally reference a decoded frame for sometime while it continues to decode later frames. Apps could manipulate the SAB during this period and cause crashes.

We're involved in a cross team (WASM, WebGPU, ...) discussion for memory re-use / reducing copies. The WebCodecs position is here: WICG/reducing-memory-copies#1

I'll go ahead and close and continue tracking in that repo.