From e045aa940e98a216f7443e1c60e2192208d3f88a Mon Sep 17 00:00:00 2001
From: Travis Ralston <travisr@matrix.org>
Date: Mon, 12 Jul 2021 14:11:24 -0600
Subject: [PATCH] Be smart with readonly

---
 .../views/rooms/VoiceRecordComposerTile.tsx       |  2 +-
 src/voice/Playback.ts                             | 15 ++++++---------
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/src/components/views/rooms/VoiceRecordComposerTile.tsx b/src/components/views/rooms/VoiceRecordComposerTile.tsx
index 701a5e99ef..709eab82a0 100644
--- a/src/components/views/rooms/VoiceRecordComposerTile.tsx
+++ b/src/components/views/rooms/VoiceRecordComposerTile.tsx
@@ -95,7 +95,7 @@ export default class VoiceRecordComposerTile extends React.PureComponent<IProps,
                 duration: Math.round(this.state.recorder.durationSeconds * 1000),
 
                 // https://github.com/matrix-org/matrix-doc/pull/3246
-                waveform: this.state.recorder.getPlayback().waveformThumbnail.map(v => Math.round(v * 1024)),
+                waveform: this.state.recorder.getPlayback().thumbnailWaveform.map(v => Math.round(v * 1024)),
             },
             "org.matrix.msc3245.voice": {}, // No content, this is a rendering hint
         });
diff --git a/src/voice/Playback.ts b/src/voice/Playback.ts
index 9f46530de4..1a1ee54466 100644
--- a/src/voice/Playback.ts
+++ b/src/voice/Playback.ts
@@ -52,12 +52,17 @@ function makePlaybackWaveform(input: number[]): number[] {
 }
 
 export class Playback extends EventEmitter implements IDestroyable {
+    /**
+     * Stable waveform for representing a thumbnail of the media. Values are
+     * guaranteed to be between zero and one, inclusive.
+     */
+    public readonly thumbnailWaveform: number[];
+
     private readonly context: AudioContext;
     private source: AudioBufferSourceNode;
     private state = PlaybackState.Decoding;
     private audioBuf: AudioBuffer;
     private resampledWaveform: number[];
-    private thumbnailWaveform: number[];
     private waveformObservable = new SimpleObservable<number[]>();
     private readonly clock: PlaybackClock;
     private readonly fileSize: number;
@@ -95,14 +100,6 @@ export class Playback extends EventEmitter implements IDestroyable {
         return this.resampledWaveform;
     }
 
-    /**
-     * Stable waveform for representing a thumbnail of the media. Values are
-     * guaranteed to be between zero and one, inclusive.
-     */
-    public get waveformThumbnail(): number[] {
-        return this.thumbnailWaveform;
-    }
-
     public get waveformData(): SimpleObservable<number[]> {
         return this.waveformObservable;
     }