Adolfo Reyna
104 lines
3.9 KiB
JavaScript
104 lines
3.9 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.validateQualitySettings = exports.getValidCrfRanges = exports.getDefaultCrfForCodec = void 0;
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const is_audio_codec_1 = require("./is-audio-codec");
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const defaultCrfMap = {
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h264: 18,
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h265: 23,
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vp8: 9,
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vp9: 28,
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prores: null,
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gif: null,
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'h264-mkv': 18,
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'h264-ts': 18,
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aac: null,
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mp3: null,
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wav: null,
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};
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const getDefaultCrfForCodec = (codec) => {
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const val = defaultCrfMap[codec];
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if (val === undefined) {
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throw new TypeError(`Got unexpected codec "${codec}"`);
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}
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return val;
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};
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exports.getDefaultCrfForCodec = getDefaultCrfForCodec;
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const crfRanges = {
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h264: [1, 51],
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h265: [0, 51],
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vp8: [4, 63],
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vp9: [0, 63],
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prores: [0, 0],
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gif: [0, 0],
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'h264-mkv': [1, 51],
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'h264-ts': [1, 51],
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aac: [0, 0],
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mp3: [0, 0],
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wav: [0, 0],
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};
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const getValidCrfRanges = (codec) => {
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const val = crfRanges[codec];
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if (val === undefined) {
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throw new TypeError(`Got unexpected codec "${codec}"`);
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}
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return val;
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};
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exports.getValidCrfRanges = getValidCrfRanges;
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const validateQualitySettings = ({ codec, crf, videoBitrate, encodingMaxRate, encodingBufferSize, hardwareAcceleration, }) => {
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if (crf && videoBitrate) {
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throw new Error('"crf" and "videoBitrate" can not both be set. Choose one of either.');
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}
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if (crf && hardwareAcceleration === 'required') {
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throw new Error('"crf" option is not supported with hardware acceleration');
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}
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if (encodingMaxRate && !encodingBufferSize) {
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throw new Error('"encodingMaxRate" can not be set without also setting "encodingBufferSize".');
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}
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const bufSizeArray = encodingBufferSize
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? ['-bufsize', encodingBufferSize]
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: [];
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const maxRateArray = encodingMaxRate ? ['-maxrate', encodingMaxRate] : [];
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if (videoBitrate) {
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if (codec === 'prores') {
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console.warn('ProRes does not support videoBitrate. Ignoring.');
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return [];
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}
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if ((0, is_audio_codec_1.isAudioCodec)(codec)) {
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console.warn(`${codec} does not support videoBitrate. Ignoring.`);
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return [];
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}
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return ['-b:v', videoBitrate, ...bufSizeArray, ...maxRateArray];
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}
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if (crf === null || typeof crf === 'undefined') {
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const actualCrf = (0, exports.getDefaultCrfForCodec)(codec);
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if (actualCrf === null) {
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return [...bufSizeArray, ...maxRateArray];
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}
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return ['-crf', String(actualCrf), ...bufSizeArray, ...maxRateArray];
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}
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if (typeof crf !== 'number') {
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throw new TypeError('Expected CRF to be a number, but is ' + JSON.stringify(crf));
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}
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const range = (0, exports.getValidCrfRanges)(codec);
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if (crf === 0 &&
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(codec === 'h264' || codec === 'h264-mkv' || codec === 'h264-ts')) {
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throw new TypeError("Setting the CRF to 0 with a H264 codec is not supported anymore because of it's inconsistencies between platforms. Videos with CRF 0 cannot be played on iOS/macOS. 0 is a extreme value with inefficient settings which you probably do not want. Set CRF to a higher value to fix this error.");
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}
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if (crf < range[0] || crf > range[1]) {
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if (range[0] === 0 && range[1] === 0) {
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throw new TypeError(`The "${codec}" codec does not support the --crf option.`);
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}
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throw new TypeError(`CRF must be between ${range[0]} and ${range[1]} for codec ${codec}. Passed: ${crf}`);
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}
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if (codec === 'prores') {
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console.warn('ProRes does not support the "crf" option. Ignoring.');
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return [];
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}
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if ((0, is_audio_codec_1.isAudioCodec)(codec)) {
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console.warn(`${codec} does not support the "crf" option. Ignoring.`);
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return [];
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}
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return ['-crf', String(crf), ...bufSizeArray, ...maxRateArray];
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};
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exports.validateQualitySettings = validateQualitySettings;
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