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Centralize WaveForm samples.

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Benoit Marty 2025-10-13 16:21:17 +02:00 • committed by Benoit Marty
parent a5198b4f6a
commit 194b97ee10
7 changed files with 38 additions and 56 deletions
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26
libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/components/media/WaveFormSamples.kt Normal file
View file

@ -0,0 +1,26 @@
/*
* Copyright 2025 New Vector Ltd.
*
* SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
* Please see LICENSE files in the repository root for full details.
*/
package io.element.android.libraries.designsystem.components.media
import kotlinx.collections.immutable.persistentListOf
import kotlinx.collections.immutable.toImmutableList
object WaveFormSamples {
val allRangeWaveForm = List(100) { it.toFloat() / 100 }.toImmutableList()
val realisticWaveForm = persistentListOf(
0.000f, 0.000f, 0.000f, 0.003f, 0.354f,
0.353f, 0.365f, 0.790f, 0.787f, 0.167f,
0.333f, 0.975f, 0.000f, 0.102f, 0.003f,
0.531f, 0.584f, 0.317f, 0.140f, 0.475f,
0.496f, 0.561f, 0.042f, 0.263f, 0.169f,
0.829f, 0.349f, 0.010f, 0.000f, 0.000f,
1.000f, 0.334f, 0.321f, 0.011f, 0.000f,
0.000f, 0.003f,
)
}

46
libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/components/media/WaveformPlaybackView.kt
View file

@ -187,14 +187,14 @@ internal fun WaveformPlaybackViewPreview() = ElementPreview {
showCursor = false,
playbackProgress = 0.5f,
onSeek = {},
waveform = aWaveForm().toImmutableList(),
waveform = WaveFormSamples.realisticWaveForm,
)
WaveformPlaybackView(
modifier = Modifier.height(34.dp),
showCursor = true,
playbackProgress = 0.5f,
onSeek = {},
waveform = List(1024) { it / 1024f }.toImmutableList(),
waveform = WaveFormSamples.allRangeWaveForm,
)
}
}
@ -217,45 +217,3 @@ private fun ImmutableList<Float>.normalisedData(maxSamplesCount: Int): Immutable
return result.toImmutableList()
}
fun aWaveForm(): List<Float> {
return listOf(
0.000f,
0.000f,
0.000f,
0.003f,
0.354f,
0.353f,
0.365f,
0.790f,
0.787f,
0.167f,
0.333f,
0.975f,
0.000f,
0.102f,
0.003f,
0.531f,
0.584f,
0.317f,
0.140f,
0.475f,
0.496f,
0.561f,
0.042f,
0.263f,
0.169f,
0.829f,
0.349f,
0.010f,
0.000f,
0.000f,
1.000f,
0.334f,
0.321f,
0.011f,
0.000f,
0.000f,
0.003f,
)
}