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File size: 3,563 Bytes
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import YAML from "yaml"
import { v4 as uuidv4 } from "uuid"
import { ClapHeader, ClapMeta, ClapModel, ClapProject, ClapScene, ClapSegment } from "./types"
import { getValidNumber } from "@/lib/getValidNumber"
export async function serializeClap({
meta, // ClapMeta
models, // ClapModel[]
scenes, // ClapScene[]
segments, // ClapSegment[]
}: ClapProject): Promise<Blob> {
// we play it safe, and we verify the structure of the parameters,
// to make sure we generate a valid clap file
const clapModels: ClapModel[] = models.map(({
id,
category,
triggerName,
label,
description,
author,
thumbnailUrl,
seed,
assetSourceType,
assetUrl,
age,
gender,
region,
appearance,
voiceVendor,
voiceId,
}) => ({
id,
category,
triggerName,
label,
description,
author,
thumbnailUrl,
seed,
assetSourceType,
assetUrl,
age,
gender,
region,
appearance,
voiceVendor,
voiceId,
}))
const clapScenes: ClapScene[] = scenes.map(({
id,
scene,
line,
rawLine,
sequenceFullText,
sequenceStartAtLine,
sequenceEndAtLine,
startAtLine,
endAtLine,
events,
}) => ({
id,
scene,
line,
rawLine,
sequenceFullText,
sequenceStartAtLine,
sequenceEndAtLine,
startAtLine,
endAtLine,
events: events.map(e => e)
}))
const clapSegments: ClapSegment[] = segments.map(({
id,
track,
startTimeInMs,
endTimeInMs,
category,
modelId,
sceneId,
prompt,
label,
outputType,
renderId,
status,
assetUrl,
assetDurationInMs,
createdBy,
editedBy,
outputGain,
seed,
}) => ({
id,
track,
startTimeInMs,
endTimeInMs,
category,
modelId,
sceneId,
prompt,
label,
outputType,
renderId,
status,
assetUrl,
assetDurationInMs,
createdBy,
editedBy,
outputGain,
seed,
}))
const clapHeader: ClapHeader = {
format: "clap-0",
numberOfModels: clapModels.length,
numberOfScenes: clapScenes.length,
numberOfSegments: clapSegments.length,
}
const clapMeta: ClapMeta = {
id: meta.id || uuidv4(),
title: typeof meta.title === "string" ? meta.title : "Untitled",
description: typeof meta.description === "string" ? meta.description : "",
licence: typeof meta.licence === "string" ? meta.licence : "",
orientation: meta.orientation === "portrait" ? "portrait" : meta.orientation === "square" ? "square" : "landscape",
width: getValidNumber(meta.width, 256, 8192, 1024),
height: getValidNumber(meta.height, 256, 8192, 576),
defaultVideoModel: typeof meta.defaultVideoModel === "string" ? meta.defaultVideoModel : "SVD",
extraPositivePrompt: Array.isArray(meta.extraPositivePrompt) ? meta.extraPositivePrompt : [],
}
const entries = [
clapHeader,
clapMeta,
...clapModels,
...clapScenes,
...clapSegments
]
const strigifiedResult = YAML.stringify(entries)
// Convert the string to a Blob
const blobResult = new Blob([strigifiedResult], { type: "application/x-yaml" })
// Create a stream for the blob
const readableStream = blobResult.stream();
// Compress the stream using gzip
const compressionStream = new CompressionStream('gzip');
const compressedStream = readableStream.pipeThrough(compressionStream);
// Create a new blob from the compressed stream
const compressedBlob = await new Response(compressedStream).blob();
return compressedBlob
} |