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Add minimum bitrate limit

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Chocobozzz
2021-11-10 11:04:00 +01:00
parent 9390403250
commit 67eeec8b95
3 changed files with 55 additions and 10 deletions
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shared/core-utils/videos/bitrate.ts
+25 -1
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@@ -4,6 +4,18 @@ type BitPerPixel = { [ id in VideoResolution ]: number }
// https://bitmovin.com/video-bitrate-streaming-hls-dash/
const minLimitBitPerPixel: BitPerPixel = {
[VideoResolution.H_NOVIDEO]: 0,
[VideoResolution.H_144P]: 0.02,
[VideoResolution.H_240P]: 0.02,
[VideoResolution.H_360P]: 0.02,
[VideoResolution.H_480P]: 0.02,
[VideoResolution.H_720P]: 0.02,
[VideoResolution.H_1080P]: 0.02,
[VideoResolution.H_1440P]: 0.02,
[VideoResolution.H_4K]: 0.02
}
const averageBitPerPixel: BitPerPixel = {
[VideoResolution.H_NOVIDEO]: 0,
[VideoResolution.H_144P]: 0.19,
@@ -50,11 +62,23 @@ function getMaxBitrate (options: {
return targetBitrate
}
function getMinLimitBitrate (options: {
resolution: VideoResolution
ratio: number
fps: number
}) {
const minLimitBitrate = calculateBitrate({ ...options, bitPerPixel: minLimitBitPerPixel })
if (!minLimitBitrate) return 10 * 1000
return minLimitBitrate
}
// ---------------------------------------------------------------------------
export {
getAverageBitrate,
getMaxBitrate
getMaxBitrate,
getMinLimitBitrate
}
// ---------------------------------------------------------------------------