| <!DOCTYPE html> |
| <!-- |
| Terminate a worker while it's doing readback and video encoding |
| --> |
| <title>Frame readback in a worker</title> |
| <script src="webcodecs_common.js"></script> |
| |
| <script type="text/javascript"> |
| 'use strict'; |
| |
| function makeWorker() { |
| const worker = new Worker('terminate-worker-worker.js'); |
| let resolve_promise = null; |
| worker.onmessage = function(e) { resolve_promise(e.data); } |
| let worker_promise = new Promise((resolve) => { |
| resolve_promise = resolve; |
| }); |
| return { worker, worker_promise }; |
| } |
| |
| async function main(arg) { |
| let source_type = arg.source_type; |
| TEST.log('Starting test with arguments: ' + JSON.stringify(arg)); |
| let source = await createFrameSource(source_type, 320, 240); |
| if (!source) { |
| TEST.skip('Unsupported source: ' + source_type); |
| return; |
| } |
| |
| let frame = await source.getNextFrame(); |
| let {worker, worker_promise} = makeWorker(); |
| worker.postMessage(frame, [frame]); |
| await worker_promise; |
| |
| worker.terminate(); |
| |
| frame.close(); |
| source.close(); |
| TEST.log('Worker termination initiated'); |
| } |
| addManualTestButton([{'source_type': 'offscreen'}]); |
| </script> |
