Fix handling of repeated EOS in SilenceSkippingAudioProcessor.

Issue: #712
PiperOrigin-RevId: 589882412
(cherry picked from commit 90a0cbd)

RELEASENOTES.md

@@ -19,6 +19,8 @@
         `ROLE_FLAG_ALTERNATE` to prevent them being automatically selected for
         playback because of their higher resolution.
 *   Audio:
+    *   Fix handling of EOS for `SilenceSkippingAudioProcessor` when called
+        multiple times ([#712](https://github.com/androidx/media/issues/712)).
 *   Video:
     *   Add workaround for a device issue on Galaxy Tab S7 FE, Chromecast with
         Google TV, and Lenovo M10 FHD Plus that causes 60fps AVC streams to be

libraries/exoplayer/src/main/java/androidx/media3/exoplayer/audio/SilenceSkippingAudioProcessor.java

@@ -189,8 +189,11 @@ public void queueInput(ByteBuffer inputBuffer) {
   @Override
   protected void onQueueEndOfStream() {
     if (maybeSilenceBufferSize > 0) {
-      // We haven't received enough silence to transition to the silent state, so output the buffer.
+      // We haven't received enough silence to transition to the silent state, so output the buffer
+      // and switch back to the noisy state.
       output(maybeSilenceBuffer, maybeSilenceBufferSize);
+      maybeSilenceBufferSize = 0;
+      state = STATE_NOISY;
     }
     if (!hasOutputNoise) {
       skippedFrames += paddingSize / bytesPerFrame;