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Move calculateColorLuminance, calculatePublishedDate and buildVTTFile…
…Locally out of the store (FreeTubeApp#2692)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,103 @@ | ||
| export function calculateColorLuminance(colorValue) { | ||
| const cutHex = colorValue.substring(1, 7) | ||
| const colorValueR = parseInt(cutHex.substring(0, 2), 16) | ||
| const colorValueG = parseInt(cutHex.substring(2, 4), 16) | ||
| const colorValueB = parseInt(cutHex.substring(4, 6), 16) | ||
|
|
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| const luminance = (0.299 * colorValueR + 0.587 * colorValueG + 0.114 * colorValueB) / 255 | ||
|
|
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| if (luminance > 0.5) { | ||
| return '#000000' | ||
| } else { | ||
| return '#FFFFFF' | ||
| } | ||
| } | ||
|
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| export function calculatePublishedDate(publishedText) { | ||
| const date = new Date() | ||
| if (publishedText === 'Live') { | ||
| return publishedText | ||
| } | ||
|
|
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| const textSplit = publishedText.split(' ') | ||
|
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| if (textSplit[0].toLowerCase() === 'streamed') { | ||
| textSplit.shift() | ||
| } | ||
|
|
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| const timeFrame = textSplit[1] | ||
| const timeAmount = parseInt(textSplit[0]) | ||
| let timeSpan = null | ||
|
|
||
| if (timeFrame.indexOf('second') > -1) { | ||
| timeSpan = timeAmount * 1000 | ||
| } else if (timeFrame.indexOf('minute') > -1) { | ||
| timeSpan = timeAmount * 60000 | ||
| } else if (timeFrame.indexOf('hour') > -1) { | ||
| timeSpan = timeAmount * 3600000 | ||
| } else if (timeFrame.indexOf('day') > -1) { | ||
| timeSpan = timeAmount * 86400000 | ||
| } else if (timeFrame.indexOf('week') > -1) { | ||
| timeSpan = timeAmount * 604800000 | ||
| } else if (timeFrame.indexOf('month') > -1) { | ||
| timeSpan = timeAmount * 2592000000 | ||
| } else if (timeFrame.indexOf('year') > -1) { | ||
| timeSpan = timeAmount * 31556952000 | ||
| } | ||
|
|
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| return date.getTime() - timeSpan | ||
| } | ||
|
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| export function buildVTTFileLocally(storyboard) { | ||
| let vttString = 'WEBVTT\n\n' | ||
| // how many images are in one image | ||
| const numberOfSubImagesPerImage = storyboard.sWidth * storyboard.sHeight | ||
| // the number of storyboard images | ||
| const numberOfImages = Math.ceil(storyboard.count / numberOfSubImagesPerImage) | ||
| const intervalInSeconds = storyboard.interval / 1000 | ||
| let currentUrl = storyboard.url | ||
| let startHours = 0 | ||
| let startMinutes = 0 | ||
| let startSeconds = 0 | ||
| let endHours = 0 | ||
| let endMinutes = 0 | ||
| let endSeconds = intervalInSeconds | ||
| for (let i = 0; i < numberOfImages; i++) { | ||
| let xCoord = 0 | ||
| let yCoord = 0 | ||
| for (let j = 0; j < numberOfSubImagesPerImage; j++) { | ||
| // add the timestamp information | ||
| const paddedStartHours = startHours.toString().padStart(2, '0') | ||
| const paddedStartMinutes = startMinutes.toString().padStart(2, '0') | ||
| const paddedStartSeconds = startSeconds.toString().padStart(2, '0') | ||
| const paddedEndHours = endHours.toString().padStart(2, '0') | ||
| const paddedEndMinutes = endMinutes.toString().padStart(2, '0') | ||
| const paddedEndSeconds = endSeconds.toString().padStart(2, '0') | ||
| vttString += `${paddedStartHours}:${paddedStartMinutes}:${paddedStartSeconds}.000 --> ${paddedEndHours}:${paddedEndMinutes}:${paddedEndSeconds}.000\n` | ||
| // add the current image url as well as the x, y, width, height information | ||
| vttString += currentUrl + `#xywh=${xCoord},${yCoord},${storyboard.width},${storyboard.height}\n\n` | ||
| // update the variables | ||
| startHours = endHours | ||
| startMinutes = endMinutes | ||
| startSeconds = endSeconds | ||
| endSeconds += intervalInSeconds | ||
| if (endSeconds >= 60) { | ||
| endSeconds -= 60 | ||
| endMinutes += 1 | ||
| } | ||
| if (endMinutes >= 60) { | ||
| endMinutes -= 60 | ||
| endHours += 1 | ||
| } | ||
| // x coordinate can only be smaller than the width of one subimage * the number of subimages per row | ||
| xCoord = (xCoord + storyboard.width) % (storyboard.width * storyboard.sWidth) | ||
| // only if the x coordinate is , so in a new row, we have to update the y coordinate | ||
| if (xCoord === 0) { | ||
| yCoord += storyboard.height | ||
| } | ||
| } | ||
| // make sure that there is no value like M0 or M1 in the parameters that gets replaced | ||
| currentUrl = currentUrl.replace('M' + i.toString() + '.jpg', 'M' + (i + 1).toString() + '.jpg') | ||
| } | ||
| return vttString | ||
| } |
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