Function getPSSHForKeySystem

getPSSHForKeySystem(
keySystem: undefined | null | KeySystem,
initData: undefined | null | ArrayBuffer,
): null | ArrayBuffer
Beta
Returns the PSSH box associated with the given key system from the concatenated list of PSSH boxes in the provided initData.
Parameters
- keySystem: undefined | null | KeySystem
  The desired key system
- initData: undefined | null | ArrayBuffer
  'cenc' initialization data. Concatenated list of PSSH boxes.
Returns null | ArrayBuffer
The PSSH box ArrayBuffer corresponding to the given key system, or null if not found.
Example
```
const initData = new Uint8Array(samplePsshBox).buffer;
const result = getPSSHForKeySystem(keySystem, initData);
```
- Defined in drm/cenc/getPSSHForKeySystem.ts:18