Add logging for ExtTexMgr

- Number of frames from SurfaceTexture that is sent downstream
- Times ExtTexMgr signaled end of current input stream

PiperOrigin-RevId: 534487842

libraries/effect/src/main/java/androidx/media3/effect/DebugTraceUtil.java

@@ -49,6 +49,14 @@ public final class DebugTraceUtil {
   private static final Queue<Long> VIDEO_FRAME_PROCESSOR_RECEIVE_DECODER_EOS_TIMES_MS =
       new ArrayDeque<>();
 
+  /**
+   * The timestamps at which {@code ExternalTextureManager} signalled end of current input stream,
+   * in milliseconds.
+   */
+  @GuardedBy("DebugTraceUtil.class")
+  private static final Queue<Long> EXTERNAL_TEXTURE_MANAGER_SIGNAL_EOCIS_TIMES_MS =
+      new ArrayDeque<>();
+
   /**
    * The timestamps at which {@code VideoFrameProcessor} signalled end of stream, in milliseconds.
    */
@@ -82,6 +90,13 @@ public final class DebugTraceUtil {
   @GuardedBy("DebugTraceUtil.class")
   private static int numberOfFramesRenderedToVideoFrameProcessorInput = 0;
 
+  /**
+   * The number of frames sent to the {@link GlShaderProgram} after they arrive on {@code
+   * VideoFrameProcessor}'s input surface.
+   */
+  @GuardedBy("DebugTraceUtil.class")
+  private static int numberOfFramesDequeuedFromVideoProcessorInput = 0;
+
   /** The number of frames rendered to {@code VideoFrameProcessor}'s output. */
   @GuardedBy("DebugTraceUtil.class")
   private static int numberOfFramesRenderedToVideoFrameProcessorOutput = 0;
@@ -100,12 +115,14 @@ public final class DebugTraceUtil {
     latestVideoInputFormat = null;
     numberOfDecodedFrames = 0;
     numberOfFramesRenderedToVideoFrameProcessorInput = 0;
+    numberOfFramesDequeuedFromVideoProcessorInput = 0;
     numberOfFramesRenderedToVideoFrameProcessorOutput = 0;
     numberOfEncodedFrames = 0;
     numberOfMuxedFrames = 0;
     DECODER_RECEIVE_EOS_TIMES_MS.clear();
     DECODER_SIGNAL_EOS_TIMES_MS.clear();
     VIDEO_FRAME_PROCESSOR_RECEIVE_DECODER_EOS_TIMES_MS.clear();
+    EXTERNAL_TEXTURE_MANAGER_SIGNAL_EOCIS_TIMES_MS.clear();
     VIDEO_FRAME_PROCESSOR_SIGNAL_EOS_TIMES_MS.clear();
     ENCODER_RECEIVE_EOS_TIMES_MS.clear();
     MUXER_CAN_WRITE_VIDEO_SAMPLE.clear();
@@ -124,6 +141,10 @@ public final class DebugTraceUtil {
     numberOfFramesRenderedToVideoFrameProcessorInput++;
   }
 
+  public static synchronized void recordFrameDequeuedFromVideoFrameProcessorInput() {
+    numberOfFramesDequeuedFromVideoProcessorInput++;
+  }
+
   public static synchronized void recordFrameRenderedToVideoFrameProcessorOutput() {
     numberOfFramesRenderedToVideoFrameProcessorOutput++;
   }
@@ -150,6 +171,10 @@ public final class DebugTraceUtil {
     VIDEO_FRAME_PROCESSOR_RECEIVE_DECODER_EOS_TIMES_MS.add(SystemClock.DEFAULT.elapsedRealtime());
   }
 
+  public static synchronized void recordExternalInputManagerSignalEndOfCurrentInputStream() {
+    EXTERNAL_TEXTURE_MANAGER_SIGNAL_EOCIS_TIMES_MS.add(SystemClock.DEFAULT.elapsedRealtime());
+  }
+
   public static synchronized void recordVideoFrameProcessorSignalEos() {
     VIDEO_FRAME_PROCESSOR_SIGNAL_EOS_TIMES_MS.add(SystemClock.DEFAULT.elapsedRealtime());
   }
@@ -181,6 +206,8 @@ public final class DebugTraceUtil {
         + numberOfDecodedFrames
         + ", Rendered to VFP: "
         + numberOfFramesRenderedToVideoFrameProcessorInput
+        + ", Rendered to GlSP: "
+        + numberOfFramesDequeuedFromVideoProcessorInput
         + ", Rendered to encoder: "
         + numberOfFramesRenderedToVideoFrameProcessorOutput
         + ", Encoded: "
@@ -193,6 +220,8 @@ public final class DebugTraceUtil {
         + generateString(DECODER_SIGNAL_EOS_TIMES_MS)
         + ", VFP receive EOS: "
         + generateString(VIDEO_FRAME_PROCESSOR_RECEIVE_DECODER_EOS_TIMES_MS)
+        + ", VFP ExtTexMgr signal EndOfCurrentInputStream: "
+        + generateString(EXTERNAL_TEXTURE_MANAGER_SIGNAL_EOCIS_TIMES_MS)
         + ", VFP signal EOS: "
         + generateString(VIDEO_FRAME_PROCESSOR_SIGNAL_EOS_TIMES_MS)
         + ", Encoder receive EOS: "

libraries/effect/src/main/java/androidx/media3/effect/ExternalTextureManager.java

@@ -137,6 +137,7 @@ import java.util.concurrent.atomic.AtomicInteger;
             // Reset because there could be further input streams after the current one ends.
             currentInputStreamEnded = false;
             externalShaderProgram.signalEndOfCurrentInputStream();
+            DebugTraceUtil.recordExternalInputManagerSignalEndOfCurrentInputStream();
           } else {
             maybeQueueFrameToExternalShaderProgram();
           }
@@ -183,6 +184,7 @@ import java.util.concurrent.atomic.AtomicInteger;
         () -> {
           if (pendingFrames.isEmpty() && currentFrame == null) {
             externalShaderProgram.signalEndOfCurrentInputStream();
+            DebugTraceUtil.recordExternalInputManagerSignalEndOfCurrentInputStream();
           } else {
             currentInputStreamEnded = true;
           }
@@ -251,6 +253,7 @@ import java.util.concurrent.atomic.AtomicInteger;
             currentFrame.height),
         presentationTimeUs);
     checkStateNotNull(pendingFrames.remove());
+    DebugTraceUtil.recordFrameDequeuedFromVideoFrameProcessorInput();
     // If the queued frame is the last frame, end of stream will be signaled onInputFrameProcessed.
   }
 }