chore: normalize line endings

1 files changed, 182 insertions, 182 deletions

diff --git a/apps/web/src/lib/retime/audio-stretch.ts b/apps/web/src/lib/retime/audio-stretch.ts
index 51ef38d0..f8dd297c 100644
--- a/apps/web/src/lib/retime/audio-stretch.ts
+++ b/apps/web/src/lib/retime/audio-stretch.ts
@@ -1,182 +1,182 @@
-import { PitchShifter } from "soundtouchjs";
-import { clampRetimeRate, shouldMaintainPitch } from "@/constants/retime-constants";
-import type { RetimeConfig } from "@/lib/timeline";
-import { getSourceTimeAtClipTime } from "./resolve";
-
-const RATE_EPSILON = 1e-6;
-
-function sampleLinear({
-	channelData,
-	position,
-}: {
-	channelData: Float32Array;
-	position: number;
-}): number {
-	if (position <= 0) {
-		return channelData[0] ?? 0;
-	}
-	const lower = Math.floor(position);
-	const upper = Math.min(channelData.length - 1, lower + 1);
-	if (lower >= channelData.length) {
-		return 0;
-	}
-	const fraction = position - lower;
-	return channelData[lower] * (1 - fraction) + channelData[upper] * fraction;
-}
-
-function buildResampledBuffer({
-	audioContext,
-	sourceBuffer,
-	trimStart,
-	clipDuration,
-	targetSampleRate,
-	retime,
-}: {
-	audioContext: BaseAudioContext;
-	sourceBuffer: AudioBuffer;
-	trimStart: number;
-	clipDuration: number;
-	targetSampleRate: number;
-	retime?: RetimeConfig;
-}): AudioBuffer {
-	const outputLength = Math.max(1, Math.ceil(clipDuration * targetSampleRate));
-	const numChannels = Math.max(1, Math.min(2, sourceBuffer.numberOfChannels));
-	const outputBuffer = audioContext.createBuffer(
-		numChannels,
-		outputLength,
-		targetSampleRate,
-	);
-
-	for (let channel = 0; channel < numChannels; channel++) {
-		const sourceData = sourceBuffer.getChannelData(
-			Math.min(channel, sourceBuffer.numberOfChannels - 1),
-		);
-		const outputData = outputBuffer.getChannelData(channel);
-
-		for (let i = 0; i < outputLength; i++) {
-			const clipTime = i / targetSampleRate;
-			const sourceTime =
-				trimStart + getSourceTimeAtClipTime({ clipTime, retime });
-			outputData[i] = sampleLinear({
-				channelData: sourceData,
-				position: sourceTime * sourceBuffer.sampleRate,
-			});
-		}
-	}
-
-	return outputBuffer;
-}
-
-async function buildPitchPreservedBuffer({
-	sourceBuffer,
-	trimStart,
-	clipDuration,
-	rate,
-	targetSampleRate,
-}: {
-	sourceBuffer: AudioBuffer;
-	trimStart: number;
-	clipDuration: number;
-	rate: number;
-	targetSampleRate: number;
-}): Promise<AudioBuffer> {
-	const nativeSampleRate = sourceBuffer.sampleRate;
-	const sourceDuration = clipDuration * rate;
-	const startSample = Math.max(0, Math.floor(trimStart * nativeSampleRate));
-	const numSourceSamples = Math.max(
-		1,
-		Math.ceil(sourceDuration * nativeSampleRate),
-	);
-	const available = Math.max(0, sourceBuffer.length - startSample);
-	const actualSamples = Math.max(1, Math.min(numSourceSamples, available));
-	const numChannels = Math.max(1, Math.min(2, sourceBuffer.numberOfChannels));
-
-	// Resample to targetSampleRate first — soundtouchjs reads raw channel data
-	// and does not respect the source buffer's native sample rate.
-	const resampledLength = Math.max(
-		1,
-		Math.ceil(sourceDuration * targetSampleRate),
-	);
-	const resampleCtx = new OfflineAudioContext(
-		numChannels,
-		resampledLength,
-		targetSampleRate,
-	);
-	const nativeBuffer = resampleCtx.createBuffer(
-		numChannels,
-		actualSamples,
-		nativeSampleRate,
-	);
-
-	for (let ch = 0; ch < numChannels; ch++) {
-		const src = sourceBuffer.getChannelData(
-			Math.min(ch, sourceBuffer.numberOfChannels - 1),
-		);
-		nativeBuffer.copyToChannel(
-			src.subarray(startSample, startSample + actualSamples),
-			ch,
-		);
-	}
-
-	const resampleSourceNode = resampleCtx.createBufferSource();
-	resampleSourceNode.buffer = nativeBuffer;
-	resampleSourceNode.connect(resampleCtx.destination);
-	resampleSourceNode.start(0);
-	const resampledBuffer = await resampleCtx.startRendering();
-
-	const outputSamples = Math.max(
-		1,
-		Math.ceil(clipDuration * targetSampleRate),
-	);
-	const stretchCtx = new OfflineAudioContext(
-		numChannels,
-		outputSamples,
-		targetSampleRate,
-	);
-	const shifter = new PitchShifter(stretchCtx, resampledBuffer, 4096);
-	shifter.tempo = rate;
-	shifter.pitch = 1;
-	shifter.connect(stretchCtx.destination);
-	return stretchCtx.startRendering();
-}
-
-export async function renderRetimedBuffer({
-	audioContext,
-	sourceBuffer,
-	trimStart,
-	clipDuration,
-	retime,
-	maintainPitch = false,
-}: {
-	audioContext: BaseAudioContext;
-	sourceBuffer: AudioBuffer;
-	trimStart: number;
-	clipDuration: number;
-	retime?: RetimeConfig;
-	maintainPitch?: boolean;
-}): Promise<AudioBuffer> {
-	const targetSampleRate = audioContext.sampleRate;
-	const rate = clampRetimeRate({ rate: retime?.rate ?? 1 });
-	const usePitchPreservation =
-		shouldMaintainPitch({ rate, maintainPitch }) &&
-		Math.abs(rate - 1) > RATE_EPSILON;
-
-	if (usePitchPreservation) {
-		return buildPitchPreservedBuffer({
-			sourceBuffer,
-			trimStart,
-			clipDuration,
-			rate,
-			targetSampleRate,
-		});
-	}
-
-	return buildResampledBuffer({
-		audioContext,
-		sourceBuffer,
-		trimStart,
-		clipDuration,
-		targetSampleRate,
-		retime,
-	});
-}
+import { PitchShifter } from "soundtouchjs";

+import { clampRetimeRate, shouldMaintainPitch } from "@/constants/retime-constants";

+import type { RetimeConfig } from "@/lib/timeline";

+import { getSourceTimeAtClipTime } from "./resolve";

+

+const RATE_EPSILON = 1e-6;

+

+function sampleLinear({

+	channelData,

+	position,

+}: {

+	channelData: Float32Array;

+	position: number;

+}): number {

+	if (position <= 0) {

+		return channelData[0] ?? 0;

+	}

+	const lower = Math.floor(position);

+	const upper = Math.min(channelData.length - 1, lower + 1);

+	if (lower >= channelData.length) {

+		return 0;

+	}

+	const fraction = position - lower;

+	return channelData[lower] * (1 - fraction) + channelData[upper] * fraction;

+}

+

+function buildResampledBuffer({

+	audioContext,

+	sourceBuffer,

+	trimStart,

+	clipDuration,

+	targetSampleRate,

+	retime,

+}: {

+	audioContext: BaseAudioContext;

+	sourceBuffer: AudioBuffer;

+	trimStart: number;

+	clipDuration: number;

+	targetSampleRate: number;

+	retime?: RetimeConfig;

+}): AudioBuffer {

+	const outputLength = Math.max(1, Math.ceil(clipDuration * targetSampleRate));

+	const numChannels = Math.max(1, Math.min(2, sourceBuffer.numberOfChannels));

+	const outputBuffer = audioContext.createBuffer(

+		numChannels,

+		outputLength,

+		targetSampleRate,

+	);

+

+	for (let channel = 0; channel < numChannels; channel++) {

+		const sourceData = sourceBuffer.getChannelData(

+			Math.min(channel, sourceBuffer.numberOfChannels - 1),

+		);

+		const outputData = outputBuffer.getChannelData(channel);

+

+		for (let i = 0; i < outputLength; i++) {

+			const clipTime = i / targetSampleRate;

+			const sourceTime =

+				trimStart + getSourceTimeAtClipTime({ clipTime, retime });

+			outputData[i] = sampleLinear({

+				channelData: sourceData,

+				position: sourceTime * sourceBuffer.sampleRate,

+			});

+		}

+	}

+

+	return outputBuffer;

+}

+

+async function buildPitchPreservedBuffer({

+	sourceBuffer,

+	trimStart,

+	clipDuration,

+	rate,

+	targetSampleRate,

+}: {

+	sourceBuffer: AudioBuffer;

+	trimStart: number;

+	clipDuration: number;

+	rate: number;

+	targetSampleRate: number;

+}): Promise<AudioBuffer> {

+	const nativeSampleRate = sourceBuffer.sampleRate;

+	const sourceDuration = clipDuration * rate;

+	const startSample = Math.max(0, Math.floor(trimStart * nativeSampleRate));

+	const numSourceSamples = Math.max(

+		1,

+		Math.ceil(sourceDuration * nativeSampleRate),

+	);

+	const available = Math.max(0, sourceBuffer.length - startSample);

+	const actualSamples = Math.max(1, Math.min(numSourceSamples, available));

+	const numChannels = Math.max(1, Math.min(2, sourceBuffer.numberOfChannels));

+

+	// Resample to targetSampleRate first — soundtouchjs reads raw channel data

+	// and does not respect the source buffer's native sample rate.

+	const resampledLength = Math.max(

+		1,

+		Math.ceil(sourceDuration * targetSampleRate),

+	);

+	const resampleCtx = new OfflineAudioContext(

+		numChannels,

+		resampledLength,

+		targetSampleRate,

+	);

+	const nativeBuffer = resampleCtx.createBuffer(

+		numChannels,

+		actualSamples,

+		nativeSampleRate,

+	);

+

+	for (let ch = 0; ch < numChannels; ch++) {

+		const src = sourceBuffer.getChannelData(

+			Math.min(ch, sourceBuffer.numberOfChannels - 1),

+		);

+		nativeBuffer.copyToChannel(

+			src.subarray(startSample, startSample + actualSamples),

+			ch,

+		);

+	}

+

+	const resampleSourceNode = resampleCtx.createBufferSource();

+	resampleSourceNode.buffer = nativeBuffer;

+	resampleSourceNode.connect(resampleCtx.destination);

+	resampleSourceNode.start(0);

+	const resampledBuffer = await resampleCtx.startRendering();

+

+	const outputSamples = Math.max(

+		1,

+		Math.ceil(clipDuration * targetSampleRate),

+	);

+	const stretchCtx = new OfflineAudioContext(

+		numChannels,

+		outputSamples,

+		targetSampleRate,

+	);

+	const shifter = new PitchShifter(stretchCtx, resampledBuffer, 4096);

+	shifter.tempo = rate;

+	shifter.pitch = 1;

+	shifter.connect(stretchCtx.destination);

+	return stretchCtx.startRendering();

+}

+

+export async function renderRetimedBuffer({

+	audioContext,

+	sourceBuffer,

+	trimStart,

+	clipDuration,

+	retime,

+	maintainPitch = false,

+}: {

+	audioContext: BaseAudioContext;

+	sourceBuffer: AudioBuffer;

+	trimStart: number;

+	clipDuration: number;

+	retime?: RetimeConfig;

+	maintainPitch?: boolean;

+}): Promise<AudioBuffer> {

+	const targetSampleRate = audioContext.sampleRate;

+	const rate = clampRetimeRate({ rate: retime?.rate ?? 1 });

+	const usePitchPreservation =

+		shouldMaintainPitch({ rate, maintainPitch }) &&

+		Math.abs(rate - 1) > RATE_EPSILON;

+

+	if (usePitchPreservation) {

+		return buildPitchPreservedBuffer({

+			sourceBuffer,

+			trimStart,

+			clipDuration,

+			rate,

+			targetSampleRate,

+		});

+	}

+

+	return buildResampledBuffer({

+		audioContext,

+		sourceBuffer,

+		trimStart,

+		clipDuration,

+		targetSampleRate,

+		retime,

+	});

+}