@remotion/renderer
Version:
Render Remotion videos using Node.js or Bun
97 lines (96 loc) • 4.2 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.generateFfmpegArgs = void 0;
const crf_1 = require("./crf");
const get_codec_name_1 = require("./get-codec-name");
const logger_1 = require("./logger");
const color_space_1 = require("./options/color-space");
const truthy_1 = require("./truthy");
const firstEncodingStepOnly = ({ hasPreencoded, proResProfileName, pixelFormat, x264Preset, codec, crf, videoBitrate, encodingMaxRate, encodingBufferSize, hardwareAcceleration, }) => {
if (hasPreencoded || codec === 'gif') {
return [];
}
return [
proResProfileName ? ['-profile:v', proResProfileName] : null,
['-pix_fmt', pixelFormat],
// Without explicitly disabling auto-alt-ref,
// transparent WebM generation doesn't work
pixelFormat === 'yuva420p' ? ['-auto-alt-ref', '0'] : null,
x264Preset ? ['-preset', x264Preset] : null,
(0, crf_1.validateQualitySettings)({
crf,
videoBitrate,
codec,
encodingMaxRate,
encodingBufferSize,
hardwareAcceleration,
}),
].filter(truthy_1.truthy);
};
const generateFfmpegArgs = ({ hasPreencoded, proResProfileName, pixelFormat, x264Preset, codec, crf, videoBitrate, encodingMaxRate, encodingBufferSize, colorSpace, hardwareAcceleration, indent, logLevel, }) => {
const encoderSettings = (0, get_codec_name_1.getCodecName)({
codec,
encodingMaxRate,
encodingBufferSize,
crf,
hardwareAcceleration,
indent,
logLevel,
});
if (encoderSettings === null) {
throw new TypeError(`encoderSettings is null: ${JSON.stringify(codec)} (hwaccel = ${hardwareAcceleration})`);
}
const { encoderName, hardwareAccelerated } = encoderSettings;
if (!hardwareAccelerated && hardwareAcceleration === 'required') {
throw new Error(`Codec ${codec} does not support hardware acceleration on ${process.platform}, but "hardwareAcceleration" is set to "required"`);
}
logger_1.Log.verbose({ indent, logLevel, tag: 'stitchFramesToVideo()' }, `Encoder: ${encoderName}, hardware accelerated: ${hardwareAccelerated}`);
const resolvedColorSpace = colorSpace !== null && colorSpace !== void 0 ? colorSpace : color_space_1.DEFAULT_COLOR_SPACE;
const colorSpaceOptions = resolvedColorSpace === 'bt709'
? [
['-colorspace:v', 'bt709'],
['-color_primaries:v', 'bt709'],
['-color_trc:v', 'bt709'],
['-color_range', 'tv'],
hasPreencoded
? []
: // https://www.canva.dev/blog/engineering/a-journey-through-colour-space-with-ffmpeg/
// "Color range" section
['-vf', 'zscale=matrix=709:matrixin=709:range=limited'],
]
: resolvedColorSpace === 'bt2020-ncl'
? [
['-colorspace:v', 'bt2020nc'],
['-color_primaries:v', 'bt2020'],
['-color_trc:v', 'arib-std-b67'],
['-color_range', 'tv'],
hasPreencoded
? []
: [
'-vf',
// ChatGPT: Therefore, just like BT.709, BT.2020 also uses the limited range where the digital code value for black is at 16,16,16 and not 0,0,0 in an 8-bit video system.
'zscale=matrix=2020_ncl:matrixin=2020_ncl:range=limited',
],
]
: [];
return [
['-c:v', hasPreencoded ? 'copy' : encoderName],
codec === 'h264-ts' ? ['-f', 'mpegts'] : null,
// -c:v is the same as -vcodec as -codec:video
// and specified the video codec.
...colorSpaceOptions,
...firstEncodingStepOnly({
codec,
crf,
hasPreencoded,
pixelFormat,
proResProfileName,
videoBitrate,
encodingMaxRate,
encodingBufferSize,
x264Preset,
hardwareAcceleration,
}),
].filter(truthy_1.truthy);
};
exports.generateFfmpegArgs = generateFfmpegArgs;