Fix transcription: streaming resampler trim could overrun the buffer (1.3.1-alpha)

The resampler clamped nothing before Arrays.copyOfRange(buffer, drop, length),
so when the fractional read position overshot the buffer end, drop could be
length+1 and the copy threw IllegalArgumentException: 8194 > 8193. This broke
every transcription (base and tiny, any language). Clamp drop to buffer.length.

1 files changed, 3 insertions, 0 deletions

diff --git a/app/src/main/java/com/wuhei/reccoon/TranscriptionEngine.java b/app/src/main/java/com/wuhei/reccoon/TranscriptionEngine.java
index f4306ff..efee8dd 100644
--- a/app/src/main/java/com/wuhei/reccoon/TranscriptionEngine.java
+++ b/app/src/main/java/com/wuhei/reccoon/TranscriptionEngine.java
@@ -383,6 +383,9 @@ public final class TranscriptionEngine {
             }
 
             int drop = (int) position;
+            if (drop > buffer.length) {
+                drop = buffer.length;
+            }
             if (drop > 0) {
                 buffer = Arrays.copyOfRange(buffer, drop, buffer.length);
                 position -= drop;