preallocate list capacity

2026-01-15 11:40:38 +01:00
parent 50b0e8bd17
commit db75a7c910
1 changed files with 3 additions and 2 deletions
@@ -172,7 +172,8 @@ class VoiceAnonymizer {
            decoder.configure(format, null, null, 0)
            decoder.start()

-            val pcmSamples = mutableListOf<Float>()
+            val estimatedSamples = (sampleRate.toLong() * durationUs / 1_000_000).toInt()
+            val pcmSamples = ArrayList<Float>(estimatedSamples)
            val bufferInfo = MediaCodec.BufferInfo()
            var inputDone = false
            var outputDone = false
@@ -251,8 +252,8 @@ class VoiceAnonymizer {
                }
                else -> baseFactor
            }
-        val processedSamples = mutableListOf<Float>()
        val totalSamples = pcmData.size
+        val processedSamples = ArrayList<Float>(totalSamples)

        val wsola =
            WaveformSimilarityBasedOverlapAdd(