Remove old workaround for timestamp jumps

This workaround was added for TS streams that do not adjust their
timestamps to start from zero. Over time, the default audio sink
logic has become more robust towards unexpected timestamps and
we no longer need this workaround to jump forward in time.

The workaround also actively caused issues by adjusting the audio
timestamps backwards if the stream starts with large negative
values. See Issue: androidx/media#291. This caused playback to get stuck due
to another bug in the first-frame rendering logic in the video
renderer that is now fixed.

PiperOrigin-RevId: 553493618

library/core/src/main/java/com/google/android/exoplayer2/audio/DecoderAudioRenderer.java

@@ -159,7 +159,6 @@ public abstract class DecoderAudioRenderer<
   private boolean audioTrackNeedsConfigure;
 
   private long currentPositionUs;
-  private boolean allowFirstBufferPositionDiscontinuity;
   private boolean allowPositionDiscontinuity;
   private boolean inputStreamEnded;
   private boolean outputStreamEnded;
@@ -529,7 +528,6 @@ private boolean feedInputBuffer() throws DecoderException, ExoPlaybackException
         }
         inputBuffer.flip();
         inputBuffer.format = inputFormat;
-        onQueueInputBuffer(inputBuffer);
         decoder.queueInputBuffer(inputBuffer);
         decoderReceivedBuffers = true;
         decoderCounters.queuedInputBufferCount++;
@@ -612,7 +610,6 @@ protected void onPositionReset(long positionUs, boolean joining) throws ExoPlayb
     }
 
     currentPositionUs = positionUs;
-    allowFirstBufferPositionDiscontinuity = true;
     allowPositionDiscontinuity = true;
     inputStreamEnded = false;
     outputStreamEnded = false;
@@ -813,18 +810,6 @@ private void onInputFormatChanged(FormatHolder formatHolder) throws ExoPlaybackE
     eventDispatcher.inputFormatChanged(inputFormat, evaluation);
   }
 
-  protected void onQueueInputBuffer(DecoderInputBuffer buffer) {
-    if (allowFirstBufferPositionDiscontinuity && !buffer.isDecodeOnly()) {
-      // TODO: Remove this hack once we have a proper fix for [Internal: b/71876314].
-      // Allow the position to jump if the first presentable input buffer has a timestamp that
-      // differs significantly from what was expected.
-      if (Math.abs(buffer.timeUs - currentPositionUs) > 500000) {
-        currentPositionUs = buffer.timeUs;
-      }
-      allowFirstBufferPositionDiscontinuity = false;
-    }
-  }
-
   private void updateCurrentPosition() {
     long newCurrentPositionUs = audioSink.getCurrentPositionUs(isEnded());
     if (newCurrentPositionUs != AudioSink.CURRENT_POSITION_NOT_SET) {

library/core/src/main/java/com/google/android/exoplayer2/audio/MediaCodecAudioRenderer.java

@@ -45,7 +45,6 @@
 import com.google.android.exoplayer2.audio.AudioRendererEventListener.EventDispatcher;
 import com.google.android.exoplayer2.audio.AudioSink.InitializationException;
 import com.google.android.exoplayer2.audio.AudioSink.WriteException;
-import com.google.android.exoplayer2.decoder.DecoderInputBuffer;
 import com.google.android.exoplayer2.decoder.DecoderReuseEvaluation;
 import com.google.android.exoplayer2.decoder.DecoderReuseEvaluation.DecoderDiscardReasons;
 import com.google.android.exoplayer2.mediacodec.MediaCodecAdapter;
@@ -113,7 +112,6 @@ public class MediaCodecAudioRenderer extends MediaCodecRenderer implements Media
   @Nullable private Format decryptOnlyCodecFormat;
 
   private long currentPositionUs;
-  private boolean allowFirstBufferPositionDiscontinuity;
   private boolean allowPositionDiscontinuity;
   private boolean audioSinkNeedsReset;
 
@@ -625,7 +623,6 @@ protected void onPositionReset(long positionUs, boolean joining) throws ExoPlayb
     }
 
     currentPositionUs = positionUs;
-    allowFirstBufferPositionDiscontinuity = true;
     allowPositionDiscontinuity = true;
   }
 
@@ -702,28 +699,6 @@ public PlaybackParameters getPlaybackParameters() {
     return audioSink.getPlaybackParameters();
   }
 
-  @Override
-  protected void onQueueInputBuffer(DecoderInputBuffer buffer) {
-    if (allowFirstBufferPositionDiscontinuity && !buffer.isDecodeOnly()) {
-      // TODO: Remove this hack once we have a proper fix for [Internal: b/71876314].
-      // Allow the position to jump if the first presentable input buffer has a timestamp that
-      // differs significantly from what was expected.
-      if (Math.abs(buffer.timeUs - currentPositionUs) > 500000) {
-        currentPositionUs = buffer.timeUs;
-      }
-      allowFirstBufferPositionDiscontinuity = false;
-    }
-  }
-
-  @CallSuper
-  @Override
-  protected void onProcessedOutputBuffer(long presentationTimeUs) {
-    super.onProcessedOutputBuffer(presentationTimeUs);
-    // An output buffer has been successfully processed. If this value is not set to false then
-    // onQueueInputBuffer on transition from offload to codec-based playback may occur early.
-    allowFirstBufferPositionDiscontinuity = false;
-  }
-
   @Override
   protected void onProcessedStreamChange() {
     super.onProcessedStreamChange();