removed params, cleanup
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bc1ecdd7e8
commit
64610714f1
1 changed files with 53 additions and 58 deletions
109
lib/encoder.js
109
lib/encoder.js
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@ -2,14 +2,10 @@ const { exec } = require('child_process')
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const termkit = require('terminal-kit')
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class Encoder {
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currentSetting
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settings
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encoder
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encodePresetIndexArg
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constructor(settings, currentSetting, encodePresetIndexArg = undefined) {
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constructor(settings, currentSetting) {
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this.settings = settings
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this.currentSetting = currentSetting
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this.encodePresetIndexArg = encodePresetIndexArg
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}
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/**
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@ -51,89 +47,88 @@ class Encoder {
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async #constructVideoCommand(path, out) {
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let [duration, resolutionHeight] = await this.#getDurationAndResolution(path)
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//Calculates video bitrate to fit right under 8mb 1:7 audio:video. 8Mb * 8 = 64000(8mb) - 1000 for overhead, *0.97 to leave space for container.
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//Calculates video bitrate to fit right under 8mb 1:7 audio:video. 8Mb * 8 = 64000(8mb) - 1000 for overhead, *0.95 to leave space for container.
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const maxOpusBitrate = 256 //kbits
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let audioBitRate = Math.round((62000 / 8 * 1 / duration) * 0.97)
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let videoBitRate = Math.round((62000 / 8 * 7 / duration) * 0.97)
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let audioBitRate = Math.round((this.settings.size_limit / 8 * 1 / duration) * 0.95)
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let videoBitRate = Math.round((this.settings.size_limit / 8 * 7 / duration) * 0.95)
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//if maxOpusBitrate reached, cap the audio bit rate and give the rest of the bits to video
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if (audioBitRate > maxOpusBitrate) {
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videoBitRate += audioBitRate - maxOpusBitrate
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audioBitRate = maxOpusBitrate
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}
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//if command had argument of anotehr quality setting change to use that setting
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if (this.encodePresetIndexArg) {
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this.currentSetting = this.settings.presets[this.encodePresetIndexArg]
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}
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let command = ""
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let isTwoPass = true
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/* REMOVING CRF AS ITS NO LONGER USED -- REPLACE WITH -qmin equivalent
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let outputHeight
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//resolution limiter based on video length.
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resolutionHeight >= 480 && duration > 900 ?
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outputHeight = 480 :
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resolutionHeight >= 720 && duration > 600 ?
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outputHeight = 720 :
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resolutionHeight >= 1080 && duration > 150 ?
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outputHeight = 1080 : outputHeight = resolutionHeight
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//Compares current video height to CRFMAP to determine optimal CRF
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while (resolutionHeight > this.currentSetting.crfMap[crfIndex].resolution) {
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crfIndex++
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//if the resolution is still higher, just use highest res
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if (!this.currentSetting.crfMap[crfIndex]?.resolution) {
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crfIndex--
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break
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}
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}
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*/
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//realtime doesnt support two pass, so just use real time settings
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if (this.currentSetting.deadline == "realtime") {
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command += `ffmpeg -y -i "${path}" -vcodec libvpx-vp9 -acodec libopus `
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command += `-deadline ${this.currentSetting.deadline} `
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command += `-quality ${this.currentSetting.deadline} `
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command += `-cpu-used ${this.currentSetting.cpuUsed} `
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command += `-undershoot-pct 0 -overshoot-pct 0 `
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command += `-b:v ${Math.round(videoBitRate / 100 * this.currentSetting.bitrateError)}k `
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command += `-minrate ${Math.round(videoBitRate * 0.5)}k `
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command += `-maxrate ${Math.floor(videoBitRate * 1.4)}k `
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command += `-b:a ${audioBitRate}k `
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command += `-tile-columns 2 -threads 6 `
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command += `-qmax 60 `
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command += `-g 240 `
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command += `-row-mt 1 "${out}.webm" `
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//console.log(command)
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return [command, duration, false]
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}
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/**
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* REMOVING SUPPORT FOR REALTIME, IMPOSSIBLE TO HAVE RT SPEED AND AIM AT 8MB
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*
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*/
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// if (this.currentSetting.deadline == "realtime") {
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// command += `ffmpeg -y -i "${path}" -vcodec libvpx-vp9 -acodec libopus `
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// command += `-deadline ${this.currentSetting.deadline} `
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// command += `-quality ${this.currentSetting.deadline} `
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// command += `-cpu-used ${this.currentSetting.cpuUsed} `
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// command += `-undershoot-pct 0 -overshoot-pct 0 `
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// command += `-b:v ${Math.round(videoBitRate / 100 * this.currentSetting.bitrateError)}k `
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// command += `-minrate ${Math.round(videoBitRate * 0.5)}k `
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// command += `-maxrate ${Math.floor(videoBitRate * 1.4)}k `
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// command += `-b:a ${audioBitRate}k `
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// command += `-tile-columns 2 -threads 6 `
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// command += `-qmax 60 `
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// command += `-g 240 `
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// command += `-row-mt 1 "${out}.webm" `
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// //console.log(command)
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// return [command, duration, false]
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// }
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//Pass 1 force to have good deadline and cpu-used 1
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command += `ffmpeg -y -i "${path}" -vcodec libvpx-vp9 -acodec libopus `
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command += `-vf scale=-1:${outputHeight} `
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command += `-deadline good `
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command += `-quality good `
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command += `-cpu-used 1 `
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command += `-cpu-used 0 `
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command += `-undershoot-pct 0 -overshoot-pct 0 `
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command += `-b:v ${Math.round(videoBitRate / 100 * this.currentSetting.bitrateError)}k `
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command += `-b:v ${Math.round(videoBitRate)}k `
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command += `-minrate ${Math.round(videoBitRate * 0.5)}k `
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command += `-maxrate ${Math.floor(videoBitRate * 1.2)}k `
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command += `-maxrate ${Math.floor(videoBitRate * 1.45)}k `
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command += `-b:a ${audioBitRate}k `
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command += `-row-mt 1 -tile-rows 2 `
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command += `-tile-columns 4 -threads 32 `
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command += `-auto-alt-ref 6 `
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command += `-qmax 60 `
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command += `-g 240 `
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command += `-row-mt 1 -pass 1 -f webm NUL && `
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command += `-pass 1 -f webm NUL && `
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//Pass 2 take in settings
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command += `ffmpeg -y -i "${path}" -vcodec libvpx-vp9 -acodec libopus `
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command += `-deadline ${this.currentSetting.deadline} `
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command += `-quality ${this.currentSetting.deadline} `
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command += `-cpu-used ${this.currentSetting.cpuUsed} `
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command += `-vf scale=-1:${outputHeight} `
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command += `-deadline good `
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command += `-quality good `
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command += `-cpu-used 0 `
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command += `-undershoot-pct 0 -overshoot-pct 0 `
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command += `-b:v ${Math.round(videoBitRate / 100 * this.currentSetting.bitrateError)}k `
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command += `-b:v ${Math.round(videoBitRate)}k `
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command += `-minrate ${Math.round(videoBitRate * 0.5)}k `
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command += `-maxrate ${Math.floor(videoBitRate * 1.4)}k `
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command += `-maxrate ${Math.floor(videoBitRate * 1.45)}k `
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command += `-b:a ${audioBitRate}k `
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command += `-tile-columns 2 -threads 6 `
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command += `-row-mt 1 -tile-rows 2 `
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command += `-tile-columns 4 -threads 32 `
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command += `-auto-alt-ref 6 `
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command += `-qmax 60 `
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command += `-g 240 `
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command += `-row-mt 1 -pass 2 "${out}.webm" `
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//console.log(command)
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return [command, duration, isTwoPass]
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command += `-pass 2 "${out}.webm" `
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return [command, duration]
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}
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async #getDurationAndResolution(file) {
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@ -144,8 +139,8 @@ class Encoder {
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const seconds = arr[0] * 3600 + arr[1] * 60 + (+arr[2]) // converting to s
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//resolution height
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const resolutionHeight = query.split("Stream #0:0")[1]?.split(",")[2].split(" ")[1].split("x")[1]
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let resolutionHeight = query.split("Stream #0:0")[1].split("kb/s")[0].split(",")
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resolutionHeight = Number.parseInt(resolutionHeight[resolutionHeight.length - 2].split("x")[1])
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return [Number.parseFloat(seconds), resolutionHeight]
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}
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