Change decodeOnly to be a sample flag.

library/src/main/java/com/google/android/exoplayer/C.java

@@ -55,6 +55,11 @@ public final class C {
   @SuppressWarnings("InlinedApi")
   public static final int SAMPLE_FLAG_ENCRYPTED = MediaExtractor.SAMPLE_FLAG_ENCRYPTED;
 
+  /**
+   * Indicates that a sample should be decoded but not rendered.
+   */
+  public static final int SAMPLE_FLAG_DECODE_ONLY = 0x8000000;
+
   /**
    * @see MediaCodec#CRYPTO_MODE_AES_CTR
    */

library/src/main/java/com/google/android/exoplayer/MediaCodecTrackRenderer.java

@@ -604,7 +604,7 @@ public abstract class MediaCodecTrackRenderer extends TrackRenderer {
     if (waitingForFirstSyncFrame) {
       // TODO: Find out if it's possible to supply samples prior to the first sync
       // frame for HE-AAC.
-      if ((sampleHolder.flags & C.SAMPLE_FLAG_SYNC) == 0) {
+      if (!sampleHolder.isSyncFrame()) {
         sampleHolder.data.clear();
         if (codecReconfigurationState == RECONFIGURATION_STATE_QUEUE_PENDING) {
           // The buffer we just cleared contained reconfiguration data. We need to re-write this
@@ -615,7 +615,7 @@ public abstract class MediaCodecTrackRenderer extends TrackRenderer {
       }
       waitingForFirstSyncFrame = false;
     }
-    boolean sampleEncrypted = (sampleHolder.flags & C.SAMPLE_FLAG_ENCRYPTED) != 0;
+    boolean sampleEncrypted = sampleHolder.isEncrypted();
     waitingForKeys = shouldWaitForKeys(sampleEncrypted);
     if (waitingForKeys) {
       return false;
@@ -624,7 +624,7 @@ public abstract class MediaCodecTrackRenderer extends TrackRenderer {
       int bufferSize = sampleHolder.data.position();
       int adaptiveReconfigurationBytes = bufferSize - sampleHolder.size;
       long presentationTimeUs = sampleHolder.timeUs;
-      if (sampleHolder.decodeOnly) {
+      if (sampleHolder.isDecodeOnly()) {
         decodeOnlyPresentationTimestamps.add(presentationTimeUs);
       }
       if (sampleEncrypted) {

library/src/main/java/com/google/android/exoplayer/SampleHolder.java

@@ -50,8 +50,8 @@ public final class SampleHolder {
   public int size;
 
   /**
-   * Flags that accompany the sample. A combination of {@link C#SAMPLE_FLAG_SYNC} and
+   * Flags that accompany the sample. A combination of {@link C#SAMPLE_FLAG_SYNC},
-   * {@link C#SAMPLE_FLAG_ENCRYPTED}
+   * {@link C#SAMPLE_FLAG_ENCRYPTED} and {@link C#SAMPLE_FLAG_DECODE_ONLY}.
    */
   public int flags;
 
@@ -60,11 +60,6 @@ public final class SampleHolder {
    */
   public long timeUs;
 
-  /**
-   * If true then the sample should be decoded, but should not be presented.
-   */
-  public boolean decodeOnly;
-
   private final int bufferReplacementMode;
 
   /**
@@ -95,6 +90,27 @@ public final class SampleHolder {
     return false;
   }
 
+  /**
+   * Returns whether {@link #flags} has {@link C#SAMPLE_FLAG_ENCRYPTED} set.
+   */
+  public boolean isEncrypted() {
+    return (flags & C.SAMPLE_FLAG_ENCRYPTED) != 0;
+  }
+
+  /**
+   * Returns whether {@link #flags} has {@link C#SAMPLE_FLAG_DECODE_ONLY} set.
+   */
+  public boolean isDecodeOnly() {
+    return (flags & C.SAMPLE_FLAG_DECODE_ONLY) != 0;
+  }
+
+  /**
+   * Returns whether {@link #flags} has {@link C#SAMPLE_FLAG_SYNC} set.
+   */
+  public boolean isSyncFrame() {
+    return (flags & C.SAMPLE_FLAG_SYNC) != 0;
+  }
+
   /**
    * Clears {@link #data}. Does nothing if {@link #data} is null.
    */

library/src/main/java/com/google/android/exoplayer/chunk/ChunkSampleSource.java

@@ -358,7 +358,8 @@ public class ChunkSampleSource implements SampleSource, Loader.Callback {
     }
 
     if (mediaChunk.read(sampleHolder)) {
-      sampleHolder.decodeOnly = frameAccurateSeeking && sampleHolder.timeUs < lastSeekPositionUs;
+      boolean decodeOnly = frameAccurateSeeking && sampleHolder.timeUs < lastSeekPositionUs;
+      sampleHolder.flags |= decodeOnly ? C.SAMPLE_FLAG_DECODE_ONLY : 0;
       onSampleRead(mediaChunk, sampleHolder);
       return SAMPLE_READ;
     } else {

library/src/main/java/com/google/android/exoplayer/chunk/parser/webm/WebmExtractor.java

@@ -467,8 +467,8 @@ public final class WebmExtractor implements Extractor {
         }
         long elementEndOffsetBytes = elementOffsetBytes + headerSizeBytes + contentsSizeBytes;
         simpleBlockTimecodeUs = clusterTimecodeUs + timecodeUs;
-        sampleHolder.flags = keyframe ? C.SAMPLE_FLAG_SYNC : 0;
+        sampleHolder.flags = (keyframe ? C.SAMPLE_FLAG_SYNC : 0)
-        sampleHolder.decodeOnly = invisible;
+            | (invisible ? C.SAMPLE_FLAG_DECODE_ONLY : 0);
         sampleHolder.timeUs = clusterTimecodeUs + timecodeUs;
         sampleHolder.size = (int) (elementEndOffsetBytes - reader.getBytesRead());
 

library/src/main/java/com/google/android/exoplayer/hls/HlsSampleSource.java

@@ -15,6 +15,7 @@
  */
 package com.google.android.exoplayer.hls;
 
+import com.google.android.exoplayer.C;
 import com.google.android.exoplayer.MediaFormat;
 import com.google.android.exoplayer.MediaFormatHolder;
 import com.google.android.exoplayer.SampleHolder;
@@ -223,7 +224,8 @@ public class HlsSampleSource implements SampleSource, Loader.Callback {
     }
 
     if (extractor.getSample(track, sampleHolder)) {
-      sampleHolder.decodeOnly = frameAccurateSeeking && sampleHolder.timeUs < lastSeekPositionUs;
+      boolean decodeOnly = frameAccurateSeeking && sampleHolder.timeUs < lastSeekPositionUs;
+      sampleHolder.flags |= decodeOnly ? C.SAMPLE_FLAG_DECODE_ONLY : 0;
       return SAMPLE_READ;
     }
 

library/src/main/java/com/google/android/exoplayer/hls/parser/RollingSampleBuffer.java

@@ -97,7 +97,7 @@ import java.util.concurrent.ConcurrentLinkedQueue;
     // Write the sample information into the holder and extrasHolder.
     infoQueue.peekSample(sampleHolder, extrasHolder);
     // Read encryption data if the sample is encrypted.
-    if ((sampleHolder.flags & C.SAMPLE_FLAG_ENCRYPTED) != 0) {
+    if (sampleHolder.isEncrypted()) {
       readEncryptionData(sampleHolder, extrasHolder);
     }
     // Write the sample data into the holder.

library/src/main/java/com/google/android/exoplayer/hls/parser/SampleQueue.java

@@ -15,7 +15,6 @@
  */
 package com.google.android.exoplayer.hls.parser;
 
-import com.google.android.exoplayer.C;
 import com.google.android.exoplayer.MediaFormat;
 import com.google.android.exoplayer.SampleHolder;
 import com.google.android.exoplayer.hls.parser.HlsExtractor.TrackOutput;
@@ -128,8 +127,7 @@ public final class SampleQueue implements TrackOutput {
     }
     RollingSampleBuffer nextRollingBuffer = nextQueue.rollingBuffer;
     while (nextRollingBuffer.peekSample(sampleInfoHolder)
-        && (sampleInfoHolder.timeUs < firstPossibleSpliceTime
+        && (sampleInfoHolder.timeUs < firstPossibleSpliceTime || !sampleInfoHolder.isSyncFrame())) {
-            || (sampleInfoHolder.flags & C.SAMPLE_FLAG_SYNC) == 0)) {
       // Discard samples from the next queue for as long as they are before the earliest possible
       // splice time, or not keyframes.
       nextRollingBuffer.skipSample();
@@ -152,7 +150,7 @@ public final class SampleQueue implements TrackOutput {
   private boolean advanceToEligibleSample() {
     boolean haveNext = rollingBuffer.peekSample(sampleInfoHolder);
     if (needKeyframe) {
-      while (haveNext && (sampleInfoHolder.flags & C.SAMPLE_FLAG_SYNC) == 0) {
+      while (haveNext && !sampleInfoHolder.isSyncFrame()) {
         rollingBuffer.skipSample();
         haveNext = rollingBuffer.peekSample(sampleInfoHolder);
       }

library/src/main/java/com/google/android/exoplayer/source/FrameworkSampleExtractor.java

@@ -15,7 +15,6 @@
  */
 package com.google.android.exoplayer.source;
 
-import com.google.android.exoplayer.C;
 import com.google.android.exoplayer.MediaFormat;
 import com.google.android.exoplayer.SampleHolder;
 import com.google.android.exoplayer.SampleSource;
@@ -164,7 +163,7 @@ public final class FrameworkSampleExtractor implements SampleExtractor {
     }
     sampleHolder.timeUs = mediaExtractor.getSampleTime();
     sampleHolder.flags = mediaExtractor.getSampleFlags();
-    if ((sampleHolder.flags & C.SAMPLE_FLAG_ENCRYPTED) != 0) {
+    if (sampleHolder.isEncrypted()) {
       sampleHolder.cryptoInfo.setFromExtractorV16(mediaExtractor);
     }
 

library/src/main/java/com/google/android/exoplayer/text/TextTrackRenderer.java

@@ -179,7 +179,7 @@ public class TextTrackRenderer extends TrackRenderer implements Callback {
         SampleHolder sampleHolder = parserHelper.getSampleHolder();
         sampleHolder.clearData();
         int result = source.readData(trackIndex, positionUs, formatHolder, sampleHolder, false);
-        if (result == SampleSource.SAMPLE_READ && !sampleHolder.decodeOnly) {
+        if (result == SampleSource.SAMPLE_READ && !sampleHolder.isDecodeOnly()) {
           parserHelper.startParseOperation();
           textRendererNeedsUpdate = false;
         } else if (result == SampleSource.END_OF_STREAM) {

library/src/main/java/com/google/android/exoplayer/text/eia608/Eia608Parser.java

@@ -200,7 +200,7 @@ public class Eia608Parser {
 
     ClosedCaption[] captionArray = new ClosedCaption[captions.size()];
     captions.toArray(captionArray);
-    return new ClosedCaptionList(sampleHolder.timeUs, sampleHolder.decodeOnly, captionArray);
+    return new ClosedCaptionList(sampleHolder.timeUs, sampleHolder.isDecodeOnly(), captionArray);
   }
 
   private static char getChar(byte ccData) {

library/src/test/java/com/google/android/exoplayer/chunk/parser/webm/WebmExtractorTest.java

@@ -358,9 +358,9 @@ public class WebmExtractorTest extends InstrumentationTestCase {
     assertTrue(Arrays.equals(
         mediaSegment.videoBytes, Arrays.copyOf(sampleHolder.data.array(), sampleHolder.size)));
     assertEquals(timeUs, sampleHolder.timeUs);
-    assertEquals(keyframe, (sampleHolder.flags & C.SAMPLE_FLAG_SYNC) != 0);
+    assertEquals(keyframe, sampleHolder.isSyncFrame());
-    assertEquals(invisible, sampleHolder.decodeOnly);
+    assertEquals(invisible, sampleHolder.isDecodeOnly());
-    assertEquals(encrypted, (sampleHolder.flags & C.SAMPLE_FLAG_ENCRYPTED) != 0);
+    assertEquals(encrypted, sampleHolder.isEncrypted());
     if (encrypted) {
       android.test.MoreAsserts.assertEquals(TEST_INITIALIZATION_VECTOR, sampleHolder.cryptoInfo.iv);
       assertEquals(C.CRYPTO_MODE_AES_CTR, sampleHolder.cryptoInfo.mode);