Rename droppedOutputBufferCount

Now this counter includes input buffers too, which are dropped as part of
skipping to keyframes for catch up.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=171119930

extensions/vp9/src/main/java/com/google/android/exoplayer2/ext/vp9/LibvpxVideoRenderer.java

@@ -342,11 +342,11 @@ public final class LibvpxVideoRenderer extends BaseRenderer {
   }
 
   private void dropBuffer() {
-    decoderCounters.droppedOutputBufferCount++;
+    decoderCounters.droppedBufferCount++;
     droppedFrames++;
     consecutiveDroppedFrameCount++;
-    decoderCounters.maxConsecutiveDroppedOutputBufferCount = Math.max(
-        consecutiveDroppedFrameCount, decoderCounters.maxConsecutiveDroppedOutputBufferCount);
+    decoderCounters.maxConsecutiveDroppedBufferCount = Math.max(
+        consecutiveDroppedFrameCount, decoderCounters.maxConsecutiveDroppedBufferCount);
     if (droppedFrames == maxDroppedFramesToNotify) {
       maybeNotifyDroppedFrames();
     }

library/core/src/main/java/com/google/android/exoplayer2/decoder/DecoderCounters.java

@@ -53,24 +53,24 @@ public final class DecoderCounters {
    */
   public int skippedOutputBufferCount;
   /**
-   * The number of dropped output buffers.
+   * The number of dropped buffers.
    * <p>
-   * A dropped output buffer is an output buffer that was supposed to be rendered, but was instead
+   * A dropped buffer is an buffer that was supposed to be decoded/rendered, but was instead
    * dropped because it could not be rendered in time.
    */
-  public int droppedOutputBufferCount;
+  public int droppedBufferCount;
   /**
-   * The maximum number of dropped output buffers without an interleaving rendered output buffer.
+   * The maximum number of dropped buffers without an interleaving rendered output buffer.
    * <p>
    * Skipped output buffers are ignored for the purposes of calculating this value.
    */
-  public int maxConsecutiveDroppedOutputBufferCount;
+  public int maxConsecutiveDroppedBufferCount;
   /**
    * The number of times all buffers to a keyframe were dropped.
    * <p>
    * Each time buffers to a keyframe are dropped, this counter is increased by one, and the dropped
-   * output buffer counters are increased by one (for the current output buffer) plus the number of
-   * buffers dropped from the source to advance to the keyframe.
+   * buffer counters are increased by one (for the current output buffer) plus the number of buffers
+   * dropped from the source to advance to the keyframe.
    */
   public int droppedToKeyframeCount;
 
@@ -96,9 +96,9 @@ public final class DecoderCounters {
     skippedInputBufferCount += other.skippedInputBufferCount;
     renderedOutputBufferCount += other.renderedOutputBufferCount;
     skippedOutputBufferCount += other.skippedOutputBufferCount;
-    droppedOutputBufferCount += other.droppedOutputBufferCount;
-    maxConsecutiveDroppedOutputBufferCount = Math.max(maxConsecutiveDroppedOutputBufferCount,
-        other.maxConsecutiveDroppedOutputBufferCount);
+    droppedBufferCount += other.droppedBufferCount;
+    maxConsecutiveDroppedBufferCount = Math.max(maxConsecutiveDroppedBufferCount,
+        other.maxConsecutiveDroppedBufferCount);
     droppedToKeyframeCount += other.droppedToKeyframeCount;
   }
 

library/core/src/main/java/com/google/android/exoplayer2/video/MediaCodecVideoRenderer.java

@@ -700,11 +700,11 @@ public class MediaCodecVideoRenderer extends MediaCodecRenderer {
    * @param droppedBufferCount The number of additional dropped buffers.
    */
   protected void updateDroppedBufferCounters(int droppedBufferCount) {
-    decoderCounters.droppedOutputBufferCount += droppedBufferCount;
+    decoderCounters.droppedBufferCount += droppedBufferCount;
     droppedFrames += droppedBufferCount;
     consecutiveDroppedFrameCount += droppedBufferCount;
-    decoderCounters.maxConsecutiveDroppedOutputBufferCount = Math.max(consecutiveDroppedFrameCount,
-        decoderCounters.maxConsecutiveDroppedOutputBufferCount);
+    decoderCounters.maxConsecutiveDroppedBufferCount = Math.max(consecutiveDroppedFrameCount,
+        decoderCounters.maxConsecutiveDroppedBufferCount);
     if (droppedFrames >= maxDroppedFramesToNotify) {
       maybeNotifyDroppedFrames();
     }

library/ui/src/main/java/com/google/android/exoplayer2/ui/DebugTextViewHelper.java

@@ -154,8 +154,8 @@ public final class DebugTextViewHelper extends Player.DefaultEventListener imple
     return " sib:" + counters.skippedInputBufferCount
         + " sb:" + counters.skippedOutputBufferCount
         + " rb:" + counters.renderedOutputBufferCount
-        + " db:" + counters.droppedOutputBufferCount
-        + " mcdb:" + counters.maxConsecutiveDroppedOutputBufferCount
+        + " db:" + counters.droppedBufferCount
+        + " mcdb:" + counters.maxConsecutiveDroppedBufferCount
         + " dk:" + counters.droppedToKeyframeCount;
   }
 

playbacktests/src/androidTest/java/com/google/android/exoplayer2/playbacktests/gts/DashTestRunner.java

@@ -323,9 +323,9 @@ public final class DashTestRunner {
       metricsLogger.logMetric(MetricsLogger.KEY_TEST_NAME, streamName);
       metricsLogger.logMetric(MetricsLogger.KEY_IS_CDD_LIMITED_RETRY, isCddLimitedRetry);
       metricsLogger.logMetric(MetricsLogger.KEY_FRAMES_DROPPED_COUNT,
-          videoCounters.droppedOutputBufferCount);
+          videoCounters.droppedBufferCount);
       metricsLogger.logMetric(MetricsLogger.KEY_MAX_CONSECUTIVE_FRAMES_DROPPED_COUNT,
-          videoCounters.maxConsecutiveDroppedOutputBufferCount);
+          videoCounters.maxConsecutiveDroppedBufferCount);
       metricsLogger.logMetric(MetricsLogger.KEY_FRAMES_SKIPPED_COUNT,
           videoCounters.skippedOutputBufferCount);
       metricsLogger.logMetric(MetricsLogger.KEY_FRAMES_RENDERED_COUNT,
@@ -343,20 +343,20 @@ public final class DashTestRunner {
             .assertSkippedOutputBufferCount(tag + VIDEO_TAG_SUFFIX, videoCounters, 0);
         // We allow one fewer output buffer due to the way that MediaCodecRenderer and the
         // underlying decoders handle the end of stream. This should be tightened up in the future.
-        DecoderCountersUtil.assertTotalOutputBufferCount(tag + AUDIO_TAG_SUFFIX, audioCounters,
+        DecoderCountersUtil.assertTotalBufferCount(tag + AUDIO_TAG_SUFFIX, audioCounters,
             audioCounters.inputBufferCount - 1, audioCounters.inputBufferCount);
-        DecoderCountersUtil.assertTotalOutputBufferCount(tag + VIDEO_TAG_SUFFIX, videoCounters,
+        DecoderCountersUtil.assertTotalBufferCount(tag + VIDEO_TAG_SUFFIX, videoCounters,
             videoCounters.inputBufferCount - 1, videoCounters.inputBufferCount);
       }
       try {
         int droppedFrameLimit = (int) Math.ceil(MAX_DROPPED_VIDEO_FRAME_FRACTION
-            * DecoderCountersUtil.getTotalOutputBuffers(videoCounters));
+            * DecoderCountersUtil.getTotalBufferCount(videoCounters));
         // Assert that performance is acceptable.
         // Assert that total dropped frames were within limit.
-        DecoderCountersUtil.assertDroppedOutputBufferLimit(tag + VIDEO_TAG_SUFFIX, videoCounters,
+        DecoderCountersUtil.assertDroppedBufferLimit(tag + VIDEO_TAG_SUFFIX, videoCounters,
             droppedFrameLimit);
         // Assert that consecutive dropped frames were within limit.
-        DecoderCountersUtil.assertConsecutiveDroppedOutputBufferLimit(tag + VIDEO_TAG_SUFFIX,
+        DecoderCountersUtil.assertConsecutiveDroppedBufferLimit(tag + VIDEO_TAG_SUFFIX,
             videoCounters, MAX_CONSECUTIVE_DROPPED_VIDEO_FRAMES);
       } catch (AssertionFailedError e) {
         if (trackSelector.includedAdditionalVideoFormats) {

testutils/src/main/java/com/google/android/exoplayer2/testutil/DecoderCountersUtil.java

@@ -31,8 +31,9 @@ public final class DecoderCountersUtil {
    * @param counters The counters for which the total should be calculated.
    * @return The sum of the skipped, dropped and rendered buffers.
    */
-  public static int getTotalOutputBuffers(DecoderCounters counters) {
-    return counters.skippedOutputBufferCount + counters.droppedOutputBufferCount
+  public static int getTotalBufferCount(DecoderCounters counters) {
+    counters.ensureUpdated();
+    return counters.skippedOutputBufferCount + counters.droppedBufferCount
         + counters.renderedOutputBufferCount;
   }
 
@@ -44,26 +45,24 @@ public final class DecoderCountersUtil {
         + expected + ".", expected, actual);
   }
 
-  public static void assertTotalOutputBufferCount(String name, DecoderCounters counters,
-      int minCount, int maxCount) {
-    counters.ensureUpdated();
-    int actual = getTotalOutputBuffers(counters);
+  public static void assertTotalBufferCount(String name, DecoderCounters counters, int minCount,
+      int maxCount) {
+    int actual = getTotalBufferCount(counters);
     TestCase.assertTrue("Codec(" + name + ") output " + actual + " buffers. Expected in range ["
         + minCount + ", " + maxCount + "].", minCount <= actual && actual <= maxCount);
   }
 
-  public static void assertDroppedOutputBufferLimit(String name, DecoderCounters counters,
-      int limit) {
+  public static void assertDroppedBufferLimit(String name, DecoderCounters counters, int limit) {
     counters.ensureUpdated();
-    int actual = counters.droppedOutputBufferCount;
+    int actual = counters.droppedBufferCount;
     TestCase.assertTrue("Codec(" + name + ") was late decoding: " + actual + " buffers. "
         + "Limit: " + limit + ".", actual <= limit);
   }
 
-  public static void assertConsecutiveDroppedOutputBufferLimit(String name,
-      DecoderCounters counters, int limit) {
+  public static void assertConsecutiveDroppedBufferLimit(String name, DecoderCounters counters,
+      int limit) {
     counters.ensureUpdated();
-    int actual = counters.maxConsecutiveDroppedOutputBufferCount;
+    int actual = counters.maxConsecutiveDroppedBufferCount;
     TestCase.assertTrue("Codec(" + name + ") was late decoding: " + actual
         + " buffers consecutively. " + "Limit: " + limit + ".", actual <= limit);
   }