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Video Thumbnails: Seek to 1s mark in video before capture

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This commit is contained in:
Scott Nonnenberg 2019-09-24 13:14:53 -07:00
parent 9db42bc4c6
commit 7ab2d9acc6
1 changed files with 9 additions and 2 deletions
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11
js/modules/types/visual_attachment.js
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@ -81,6 +81,10 @@ exports.makeVideoScreenshot = ({
new Promise((resolve, reject) => {
const video = document.createElement('video');
function seek() {
video.currentTime = 1.0;
}
function capture() {
const canvas = document.createElement('canvas');
canvas.width = video.videoWidth;
@ -91,12 +95,15 @@ exports.makeVideoScreenshot = ({
const image = dataURLToBlobSync(canvas.toDataURL(contentType));
video.removeEventListener('canplay', capture);
video.addEventListener('loadeddata', seek);
video.removeEventListener('seeked', capture);
resolve(image);
}
video.addEventListener('canplay', capture);
video.addEventListener('loadeddata', seek);
video.addEventListener('seeked', capture);
video.addEventListener('error', error => {
logger.error('makeVideoScreenshot error', toLogFormat(error));
reject(error);