Release Android inflight state at decoder EOS before audio tail

tools/chatgui-android/app/src/main/java/com/utun/chat/data/StreamDecodePump.kt

@@ -81,7 +81,7 @@ internal class StreamDecodePump<F : StreamDecodePump.Frame>(
             val render = !next.empty && next.pts >= position - 100000
             release(next, render); output = null
             if (!next.empty) { if (render) shown++ else discarded++ }
-            if (next.eos) ended = true
+            if (next.eos) { ended = true; submitted.clear() }
         }
     }
 

tools/chatgui-android/app/src/main/java/com/utun/chat/data/StreamPlayerEngine.kt

@@ -263,7 +263,8 @@ class StreamPlayerEngine(private val group: Long, private val source: Long, priv
                     }
                 }
                 if (playbackStarted && playback != 0L && ready >= 0) {
-                    val lateVideo = video.firstOutputPts == null || (video.oldestSubmittedPts >= 0 && video.oldestSubmittedPts < position - 10000)
+                    val lateVideo = !video.ended && (video.firstOutputPts == null
+                        || (video.oldestSubmittedPts >= 0 && video.oldestSubmittedPts < position - 10000))
                     if (lateVideo && track != null && !pausedAudio) { track!!.pause(); pausedAudio = true }
                     if (pausedAudio && !lateVideo) { track!!.play(); pausedAudio = false }
                     val head = playedFrames(System.nanoTime())
@@ -282,6 +283,7 @@ class StreamPlayerEngine(private val group: Long, private val source: Long, priv
                             MediaCodec.BUFFER_FLAG_END_OF_STREAM); eosQueued = true }
                     }
                     video.step(position, System.nanoTime() / 1000); video.checkProgress(System.nanoTime() / 1000, ended)
+                    check(!video.ended || video.firstOutputPts != null || video.inputCount == 0L) { "Decoder ended without producing an image" }
                 }
                 if (ended && video.input == null && (decoder == null || video.ended) && NativeLib.streamPlaybackEmpty(playback)
                     && playedFrames(System.nanoTime()) >= written) {