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bae089e223
We are hosting a [MoQ](https://quic.video) relay on a remote (bare metal) server on Hetzner With a lot of help from @victorpahuus
38 lines
1.2 KiB
TypeScript
38 lines
1.2 KiB
TypeScript
// Rename some stuff so it's on brand.
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// We need a separate file so this file can use the rename too.
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import * as MP4 from "./rename"
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export * from "./rename"
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export * from "./parser"
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export function isAudioTrack(track: MP4.Track): track is MP4.AudioTrack {
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// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
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return (track as MP4.AudioTrack).audio !== undefined
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}
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export function isVideoTrack(track: MP4.Track): track is MP4.VideoTrack {
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// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
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return (track as MP4.VideoTrack).video !== undefined
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}
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// TODO contribute to mp4box
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MP4.BoxParser.dOpsBox.prototype.write = function (stream: MP4.Stream) {
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this.size = this.ChannelMappingFamily === 0 ? 11 : 13 + this.ChannelMapping!.length
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this.writeHeader(stream)
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stream.writeUint8(this.Version)
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stream.writeUint8(this.OutputChannelCount)
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stream.writeUint16(this.PreSkip)
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stream.writeUint32(this.InputSampleRate)
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stream.writeInt16(this.OutputGain)
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stream.writeUint8(this.ChannelMappingFamily)
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if (this.ChannelMappingFamily !== 0) {
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stream.writeUint8(this.StreamCount!)
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stream.writeUint8(this.CoupledCount!)
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for (const mapping of this.ChannelMapping!) {
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stream.writeUint8(mapping)
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}
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}
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}
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