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chore(frontend/MkMediaVideo): loop and autoplay silent videos (#12392)

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Acid Chicken (硫酸鶏) 2023-11-26 16:15:24 +09:00 committed by GitHub
parent c9503da8f8
commit d60f645d1d
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2 changed files with 16 additions and 0 deletions
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7
packages/frontend/src/components/MkMediaVideo.vue
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@ -37,6 +37,7 @@ import * as Misskey from 'misskey-js';
import bytes from '@/filters/bytes.js';
import { defaultStore } from '@/store.js';
import { i18n } from '@/i18n.js';
import hasAudio from '@/scripts/media-has-audio.js';
const props = defineProps<{
video: Misskey.entities.DriveFile;
@ -49,6 +50,12 @@ const videoEl = shallowRef<HTMLVideoElement>();
watch(videoEl, () => {
if (videoEl.value) {
videoEl.value.volume = 0.3;
hasAudio(videoEl.value).then(had => {
if (!had) {
videoEl.value.loop = videoEl.value.muted = true;
videoEl.value.play();
}
});
}
});
</script>

9
packages/frontend/src/scripts/media-has-audio.ts Normal file
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@ -0,0 +1,9 @@
export default async function hasAudio(media: HTMLMediaElement) {
const cloned = media.cloneNode() as HTMLMediaElement;
cloned.muted = (cloned as typeof cloned & Partial<HTMLVideoElement>).playsInline = true;
cloned.play();
await new Promise((resolve) => cloned.addEventListener('playing', resolve));
const result = !!(cloned as any).audioTracks?.length || (cloned as any).mozHasAudio || !!(cloned as any).webkitAudioDecodedByteCount;
cloned.remove();
return result;
}