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Merge pull request #68 from festoney8/dev
merge dev to main, v3.5.0
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,27 @@ | ||
import { IVideoSubFilter } from '../core' | ||
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class DimensionFilter implements IVideoSubFilter { | ||
isEnable = false | ||
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setStatus(status: boolean) { | ||
this.isEnable = status | ||
} | ||
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check(dimension: boolean): Promise<string> { | ||
return new Promise<string>((resolve, reject) => { | ||
if (!this.isEnable) { | ||
resolve(`Dimension filter disable`) | ||
} else { | ||
if (dimension) { | ||
resolve(`Dimension is horizontal`) | ||
} else { | ||
reject(`Dimension is vertical`) | ||
} | ||
} | ||
}) | ||
} | ||
} | ||
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// 单例 | ||
const dimensionFilterInstance = new DimensionFilter() | ||
export default dimensionFilterInstance |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,44 @@ | ||
import { IVideoSubFilter } from '../core' | ||
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class QualityFilter implements IVideoSubFilter { | ||
// 质量过滤阈值 | ||
private threshold = 0 | ||
isEnable = false | ||
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setStatus(status: boolean) { | ||
this.isEnable = status | ||
} | ||
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setParams(threshold: number) { | ||
this.threshold = threshold | ||
} | ||
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// 根据coinLikeRatio计算视频质量, 参数源于爬虫数据拟合 | ||
calcQuality = (ratio: number): number => { | ||
const A = -1.201e1 | ||
const B = 6.861e-1 | ||
const C = 7.369e-2 | ||
const D = 1.192e2 | ||
const ans = (A - D) / (1 + Math.pow(ratio / C, B)) + D | ||
return ans > 0 ? ans : 0 | ||
} | ||
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check(ratio: number): Promise<string> { | ||
return new Promise<string>((resolve, reject) => { | ||
if (!this.isEnable || this.threshold === 0) { | ||
resolve(`Quality resolve, disable or 0`) | ||
} else { | ||
const score = this.calcQuality(ratio) | ||
if (score > 0 && score > this.threshold) { | ||
resolve(`Quality OK`) | ||
} else { | ||
reject(`Quality too bad`) | ||
} | ||
} | ||
}) | ||
} | ||
} | ||
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// 单例 | ||
const qualityFilterInstance = new QualityFilter() | ||
export default qualityFilterInstance |
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