| <html> |
| <head> |
| <meta name="fuzzy" content="maxDifference=16; totalPixels=57600" /> |
| <title>MSE webm file with alternate reference frame</title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../utilities.js"></script> |
| <script> |
| // VP8 files were generated such that alternative reference frames were used: |
| // $ fmpeg -i dragon.webm -c:v libvpx -vf scale=320:-1 -auto-alt-ref 1 -arnr-maxframes 5 -arnr-strength 3 -pass 1 test-vp8-hiddenframes.webm |
| // $ fmpeg -i dragon.webm -c:v libvpx -vf scale=320:-1 -auto-alt-ref 1 -arnr-maxframes 5 -arnr-strength 3 -pass 2 test-vp8-hiddenframes.webm |
| // The command used to extract the last frame in png format was: |
| // $ ffmpeg -sseof -3 -i test-vp8-hiddenframes.webm -pred mixed -pix_fmt rgb24 -sws_flags +accurate_rnd+full_chroma_int -update 1 -q:v 1 test-vp8-hiddenframes.png |
| async function init() |
| { |
| if (window.testRunner) |
| testRunner.waitUntilDone(); |
| |
| let v = document.getElementsByTagName('video')[0]; |
| let ms = new MediaSource(); |
| v.src = URL.createObjectURL(ms); |
| await once(ms, 'sourceopen'); |
| let videosb = ms.addSourceBuffer("video/webm; codecs=vp8"); |
| await Promise.all([fetchAndLoad(videosb, '../content/test-vp8-hiddenframes', [''], '.webm') , once(v, 'loadedmetadata')]); |
| ms.endOfStream(); |
| v.play(); |
| // duration of the last frame. |
| v.currentTime = v.duration - 0.038; |
| await Promise.all([ once(v, 'ended'), once(v, 'seeked')]); |
| |
| if (window.testRunner) |
| testRunner.notifyDone(); |
| } |
| </script> |
| </head> |
| <body onload="init();"> |
| <video/> |
| </body> |
| </html> |
