| <!DOCTYPE html> |
| <html> |
| <header> |
| <script src='/resources/testharness.js'></script> |
| <script src='/resources/testharnessreport.js'></script> |
| </header> |
| <body> |
| <video id=video autoplay muted controls loop playsinline></video> |
| <script> |
| promise_test(async t => { |
| video.src = '/webcodecs/h264.mp4'; |
| video.play(); |
| |
| await new Promise((resolve, reject) => { |
| video.onloadeddata = resolve; |
| setTimeout(() => reject("video.onloadeddata timed out"), 1000); |
| }); |
| |
| await new Promise((resolve, reject) => { |
| video.requestVideoFrameCallback(resolve); |
| setTimeout(() => reject("video.requestVideoFrameCallback timed out"), 1000); |
| }); |
| |
| const frame = new VideoFrame(video, {timestamp: 10}); |
| t.add_cleanup(() => frame.close()); |
| |
| assert_true(frame.format === "NV12" || frame.format === "I420", "pixel format check"); |
| |
| const buffer = new Uint8Array(frame.codedWidth * frame.codedHeight * 4); |
| const data = await frame.copyTo(buffer); |
| |
| let isValidCount = 0; |
| for (let i = 0; i < frame.codedWidth * frame.codedHeight; ++i) { |
| if (buffer[i] != 0 && buffer[i] != 128) |
| ++isValidCount; |
| } |
| assert_greater_than(isValidCount, 160 * 128); |
| }, 'Test we can copyTo a video frame backed by a compressed pixel buffer'); |
| </script> |
| </body> |
| </html> |
