From 0cf52ed45d6403764fd659da0ccc786443a47696 Mon Sep 17 00:00:00 2001
From: dancho <dancho@google.com>
Date: Wed, 8 Jan 2025 04:52:02 -0800
Subject: [PATCH] Read sample dependencies for H.265 in MP4

Add a new Mp4Extractor.FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES_H265
Read two bytes from H.265 videos to determine NAL unit type and
temporal layer id.

PiperOrigin-RevId: 713248154
---
 .../media3/container/NalUnitUtil.java         |  53 ++++++
 .../media3/container/NalUnitUtilTest.java     |  18 +++
 .../media3/extractor/mp4/Mp4Extractor.java    |  65 +++++---
 .../mp4/Mp4ExtractorParameterizedTest.java    |   6 +
 .../mp4/h265_bframes.mp4.0.dump               | 151 ++++++++++++++++++
 .../mp4/h265_bframes.mp4.1.dump               | 151 ++++++++++++++++++
 .../mp4/h265_bframes.mp4.2.dump               | 151 ++++++++++++++++++
 .../mp4/h265_bframes.mp4.3.dump               | 151 ++++++++++++++++++
 ...ding_within_gop_sample_dependencies.0.dump | 151 ++++++++++++++++++
 ...ding_within_gop_sample_dependencies.1.dump | 151 ++++++++++++++++++
 ...ding_within_gop_sample_dependencies.2.dump | 151 ++++++++++++++++++
 ...ding_within_gop_sample_dependencies.3.dump | 151 ++++++++++++++++++
 ...op_sample_dependencies.unknown_length.dump | 151 ++++++++++++++++++
 .../mp4/h265_bframes.mp4.unknown_length.dump  | 151 ++++++++++++++++++
 .../test/assets/media/mp4/h265_bframes.mp4    | Bin 0 -> 20634 bytes
 15 files changed, 1632 insertions(+), 20 deletions(-)
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.0.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.1.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.2.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.3.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.0.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.1.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.2.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.3.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.unknown_length.dump
 create mode 100644 libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.unknown_length.dump
 create mode 100644 libraries/test_data/src/test/assets/media/mp4/h265_bframes.mp4

diff --git a/libraries/container/src/main/java/androidx/media3/container/NalUnitUtil.java b/libraries/container/src/main/java/androidx/media3/container/NalUnitUtil.java
index 748d5b81ef..4f3fa76e34 100644
--- a/libraries/container/src/main/java/androidx/media3/container/NalUnitUtil.java
+++ b/libraries/container/src/main/java/androidx/media3/container/NalUnitUtil.java
@@ -681,6 +681,59 @@ public final class NalUnitUtil {
     return true;
   }
 
+  /**
+   * Returns the number of bytes needed from the NAL unit to determine whether subsequent NAL units
+   * can depend on the current NAL unit.
+   *
+   * @param format The sample {@link Format}.
+   */
+  public static int numberOfBytesToDetermineSampleDependencies(Format format) {
+    if (Objects.equals(format.sampleMimeType, MimeTypes.VIDEO_H264)) {
+      return 1;
+    }
+    if (Objects.equals(format.sampleMimeType, MimeTypes.VIDEO_H265)) {
+      return 2;
+    }
+    return 0;
+  }
+
+  /**
+   * Returns whether the NAL unit starting with the given bytes can be depended on by subsequent NAL
+   * units in decoding order.
+   *
+   * @param data The array holding the first {@code length} bytes of the NAL unit.
+   * @param offset The offset in {@code data} at which the NAL unit starts.
+   * @param length The number of bytes available.
+   * @param format The sample {@link Format}.
+   */
+  public static boolean isDependedOn(byte[] data, int offset, int length, Format format) {
+    if (Objects.equals(format.sampleMimeType, MimeTypes.VIDEO_H264)) {
+      return isH264NalUnitDependedOn(data[offset]);
+    }
+    if (Objects.equals(format.sampleMimeType, MimeTypes.VIDEO_H265)) {
+      return isH265NalUnitDependedOn(data, offset, length, format);
+    }
+    return true;
+  }
+
+  private static boolean isH265NalUnitDependedOn(
+      byte[] data, int offset, int length, Format format) {
+    H265NalHeader header =
+        parseH265NalHeader(new ParsableNalUnitBitArray(data, offset, /* limit= */ offset + length));
+    if (header.nalUnitType == H265_NAL_UNIT_TYPE_AUD) {
+      // NAL unit delimiters are not depended on.
+      return false;
+    }
+    boolean isSubLayerNonReferencePicture = header.nalUnitType <= 14 && header.nalUnitType % 2 == 0;
+    if (isSubLayerNonReferencePicture && header.temporalId == format.maxSubLayers - 1) {
+      // Sub-layer non-reference (SLNR) pictures cannot be used for inter prediction in the same
+      // temporal layer. That is, SLNR pictures are not depended on if they are part of the highest
+      // temporal layer.
+      return false;
+    }
+    return true;
+  }
+
   /**
    * Returns the type of the H.265 NAL unit in {@code data} that starts at {@code offset}.
    *
diff --git a/libraries/container/src/test/java/androidx/media3/container/NalUnitUtilTest.java b/libraries/container/src/test/java/androidx/media3/container/NalUnitUtilTest.java
index 334000ac35..fa2cd5a6dc 100644
--- a/libraries/container/src/test/java/androidx/media3/container/NalUnitUtilTest.java
+++ b/libraries/container/src/test/java/androidx/media3/container/NalUnitUtilTest.java
@@ -15,9 +15,13 @@
  */
 package androidx.media3.container;
 
+import static androidx.media3.container.NalUnitUtil.isDependedOn;
+import static androidx.media3.container.NalUnitUtil.numberOfBytesToDetermineSampleDependencies;
 import static androidx.media3.test.utils.TestUtil.createByteArray;
 import static com.google.common.truth.Truth.assertThat;
 
+import androidx.media3.common.Format;
+import androidx.media3.common.MimeTypes;
 import androidx.media3.common.util.Util;
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import com.google.common.collect.ImmutableList;
@@ -494,6 +498,20 @@ public final class NalUnitUtilTest {
     assertThat(spsData.maxNumReorderPics).isEqualTo(0);
   }
 
+  @Test
+  public void numberOfBytesToDetermineSampleDependencies_vp8_returnsZero() {
+    Format vp8Video = new Format.Builder().setSampleMimeType(MimeTypes.VIDEO_VP8).build();
+
+    assertThat(numberOfBytesToDetermineSampleDependencies(vp8Video)).isEqualTo(0);
+  }
+
+  @Test
+  public void isDependedOn_vp8_returnsTrue() {
+    Format vp8Video = new Format.Builder().setSampleMimeType(MimeTypes.VIDEO_VP8).build();
+
+    assertThat(isDependedOn(new byte[0], /* offset= */ 0, /* length= */ 0, vp8Video)).isTrue();
+  }
+
   private static byte[] buildTestData() {
     byte[] data = new byte[20];
     Arrays.fill(data, (byte) 0xFF);
diff --git a/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/Mp4Extractor.java b/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/Mp4Extractor.java
index 5b51804b0e..3891f27879 100644
--- a/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/Mp4Extractor.java
+++ b/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/Mp4Extractor.java
@@ -164,6 +164,14 @@ public final class Mp4Extractor implements Extractor, SeekMap {
    */
   public static final int FLAG_READ_AUXILIARY_TRACKS = 1 << 6;
 
+  /**
+   * Flag to extract additional sample dependency information, and mark output buffers with {@link
+   * C#BUFFER_FLAG_NOT_DEPENDED_ON} for {@linkplain MimeTypes#VIDEO_H265 H.265} video.
+   *
+   * <p>See {@link #FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES}.
+   */
+  public static final int FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES_H265 = 1 << 7;
+
   /**
    * @deprecated Use {@link #newFactory(SubtitleParser.Factory)} instead.
    */
@@ -302,13 +310,11 @@ public final class Mp4Extractor implements Extractor, SeekMap {
     atomHeader = new ParsableByteArray(Mp4Box.LONG_HEADER_SIZE);
     containerAtoms = new ArrayDeque<>();
     nalStartCode = new ParsableByteArray(NalUnitUtil.NAL_START_CODE);
-    nalPrefix = new ParsableByteArray(5);
+    nalPrefix = new ParsableByteArray(6);
     scratch = new ParsableByteArray();
     sampleTrackIndex = C.INDEX_UNSET;
     extractorOutput = ExtractorOutput.PLACEHOLDER;
     tracks = new Mp4Track[0];
-    // Treat all samples as depended on when FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES is unset.
-    isSampleDependedOn = (flags & FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES) == 0;
   }
 
   @Override
@@ -342,8 +348,7 @@ public final class Mp4Extractor implements Extractor, SeekMap {
     sampleBytesRead = 0;
     sampleBytesWritten = 0;
     sampleCurrentNalBytesRemaining = 0;
-    // Treat all samples as depended on when FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES is unset.
-    isSampleDependedOn = (flags & FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES) == 0;
+    isSampleDependedOn = false;
     if (position == 0) {
       // Reading the SEF data occurs before normal MP4 parsing. Therefore we can not transition to
       // reading the atom header until that has completed.
@@ -877,8 +882,7 @@ public final class Mp4Extractor implements Extractor, SeekMap {
       sampleSize -= Mp4Box.HEADER_SIZE;
     }
     input.skipFully((int) skipAmount);
-    // Treat all samples in non-H.264 codecs as depended on.
-    if (!Objects.equals(track.track.format.sampleMimeType, MimeTypes.VIDEO_H264)) {
+    if (!canReadWithinGopSampleDependencies(track.track.format)) {
       isSampleDependedOn = true;
     }
     if (track.track.nalUnitLengthFieldLength != 0) {
@@ -895,16 +899,19 @@ public final class Mp4Extractor implements Extractor, SeekMap {
       while (sampleBytesWritten < sampleSize) {
         if (sampleCurrentNalBytesRemaining == 0) {
           int nalUnitPrefixLength = track.track.nalUnitLengthFieldLength;
-          boolean readNalType = false;
+          int numberOfBytesToDetermineSampleDependencies = 0;
           if (!isSampleDependedOn
-              && nalUnitPrefixLength + 1
+              && nalUnitPrefixLength
+                      + NalUnitUtil.numberOfBytesToDetermineSampleDependencies(track.track.format)
                   <= track.sampleTable.sizes[sampleIndex] - sampleBytesRead) {
-            // Parsing sample dependencies needs the first NAL unit byte. Read it in the same
+            // Parsing sample dependencies needs the first few NAL unit bytes. Read them in the same
             // readFully call that reads the NAL length. This ensures sampleBytesRead,
             // sampleBytesWritten and isSampleDependedOn remain in a consistent state if we have
             // read failures.
-            nalUnitPrefixLength = track.track.nalUnitLengthFieldLength + 1;
-            readNalType = true;
+            numberOfBytesToDetermineSampleDependencies =
+                NalUnitUtil.numberOfBytesToDetermineSampleDependencies(track.track.format);
+            nalUnitPrefixLength =
+                track.track.nalUnitLengthFieldLength + numberOfBytesToDetermineSampleDependencies;
           }
           // Read the NAL length so that we know where we find the next one.
           input.readFully(nalPrefixData, nalUnitLengthFieldLengthDiff, nalUnitPrefixLength);
@@ -915,19 +922,24 @@ public final class Mp4Extractor implements Extractor, SeekMap {
             throw ParserException.createForMalformedContainer(
                 "Invalid NAL length", /* cause= */ null);
           }
-          sampleCurrentNalBytesRemaining = nalLengthInt - (readNalType ? 1 : 0);
+          sampleCurrentNalBytesRemaining =
+              nalLengthInt - numberOfBytesToDetermineSampleDependencies;
           // Write a start code for the current NAL unit.
           nalStartCode.setPosition(0);
           trackOutput.sampleData(nalStartCode, 4);
           sampleBytesWritten += 4;
           sampleSize += nalUnitLengthFieldLengthDiff;
-          if (readNalType) {
-            // Write the NAL unit type byte.
-            trackOutput.sampleData(nalPrefix, 1);
-            sampleBytesWritten += 1;
+          if (numberOfBytesToDetermineSampleDependencies > 0) {
+            // Write the first NAL unit bytes that were read.
+            trackOutput.sampleData(nalPrefix, numberOfBytesToDetermineSampleDependencies);
+            sampleBytesWritten += numberOfBytesToDetermineSampleDependencies;
             // If any NAL unit that's part of this sample can be depended on, treat the entire
             // sample as depended on.
-            if (NalUnitUtil.isH264NalUnitDependedOn(nalPrefixData[4])) {
+            if (NalUnitUtil.isDependedOn(
+                nalPrefixData,
+                /* offset= */ 4,
+                /* length= */ numberOfBytesToDetermineSampleDependencies,
+                track.track.format)) {
               isSampleDependedOn = true;
             }
           }
@@ -980,8 +992,7 @@ public final class Mp4Extractor implements Extractor, SeekMap {
     sampleBytesRead = 0;
     sampleBytesWritten = 0;
     sampleCurrentNalBytesRemaining = 0;
-    // Treat all samples as depended on when FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES is unset.
-    isSampleDependedOn = (flags & FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES) == 0;
+    isSampleDependedOn = false;
     return RESULT_CONTINUE;
   }
 
@@ -1083,6 +1094,20 @@ public final class Mp4Extractor implements Extractor, SeekMap {
     }
   }
 
+  /**
+   * Returns whether reading within GOP sample dependencies is enabled for the sample {@link
+   * Format}.
+   */
+  private boolean canReadWithinGopSampleDependencies(Format format) {
+    if (Objects.equals(format.sampleMimeType, MimeTypes.VIDEO_H264)) {
+      return (flags & FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES) != 0;
+    }
+    if (Objects.equals(format.sampleMimeType, MimeTypes.VIDEO_H265)) {
+      return (flags & FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES_H265) != 0;
+    }
+    return false;
+  }
+
   /**
    * For each sample of each track, calculates accumulated size of all samples which need to be read
    * before this sample can be used.
diff --git a/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/Mp4ExtractorParameterizedTest.java b/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/Mp4ExtractorParameterizedTest.java
index 427be2b6b0..57c1619933 100644
--- a/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/Mp4ExtractorParameterizedTest.java
+++ b/libraries/extractor/src/test/java/androidx/media3/extractor/mp4/Mp4ExtractorParameterizedTest.java
@@ -244,6 +244,11 @@ public final class Mp4ExtractorParameterizedTest {
     assertExtractorBehavior("media/mp4/sample_with_invalid_nalu.mp4");
   }
 
+  @Test
+  public void mp4SampleWithNonReferenceH265Frames() throws Exception {
+    assertExtractorBehavior("media/mp4/h265_bframes.mp4");
+  }
+
   private void assertExtractorBehavior(String file) throws IOException {
     ExtractorAsserts.AssertionConfig.Builder assertionConfigBuilder =
         new ExtractorAsserts.AssertionConfig.Builder();
@@ -272,6 +277,7 @@ public final class Mp4ExtractorParameterizedTest {
     }
     if (readWithinGopSampleDependencies) {
       flags |= Mp4Extractor.FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES;
+      flags |= Mp4Extractor.FLAG_READ_WITHIN_GOP_SAMPLE_DEPENDENCIES_H265;
     }
 
     @Mp4Extractor.Flags int finalFlags = flags;
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.0.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.0.dump
new file mode 100644
index 0000000000..c3747ca083
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.0.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 0
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 0
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 0
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 0
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 0
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 0
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 0
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 0
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 0
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 0
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 0
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 0
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 0
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 0
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 536870912
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.1.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.1.dump
new file mode 100644
index 0000000000..c3747ca083
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.1.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 0
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 0
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 0
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 0
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 0
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 0
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 0
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 0
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 0
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 0
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 0
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 0
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 0
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 0
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 536870912
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.2.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.2.dump
new file mode 100644
index 0000000000..c3747ca083
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.2.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 0
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 0
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 0
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 0
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 0
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 0
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 0
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 0
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 0
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 0
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 0
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 0
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 0
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 0
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 536870912
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.3.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.3.dump
new file mode 100644
index 0000000000..c3747ca083
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.3.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 0
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 0
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 0
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 0
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 0
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 0
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 0
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 0
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 0
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 0
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 0
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 0
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 0
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 0
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 536870912
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.0.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.0.dump
new file mode 100644
index 0000000000..7f2a42e0e9
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.0.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 67108864
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 67108864
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 67108864
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 67108864
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 67108864
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 67108864
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 67108864
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 67108864
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 67108864
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 67108864
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 67108864
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 67108864
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 67108864
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 67108864
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 603979776
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.1.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.1.dump
new file mode 100644
index 0000000000..7f2a42e0e9
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.1.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 67108864
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 67108864
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 67108864
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 67108864
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 67108864
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 67108864
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 67108864
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 67108864
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 67108864
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 67108864
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 67108864
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 67108864
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 67108864
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 67108864
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 603979776
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.2.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.2.dump
new file mode 100644
index 0000000000..7f2a42e0e9
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.2.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 67108864
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 67108864
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 67108864
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 67108864
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 67108864
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 67108864
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 67108864
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 67108864
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 67108864
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 67108864
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 67108864
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 67108864
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 67108864
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 67108864
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 603979776
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.3.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.3.dump
new file mode 100644
index 0000000000..7f2a42e0e9
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.3.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 67108864
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 67108864
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 67108864
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 67108864
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 67108864
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 67108864
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 67108864
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 67108864
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 67108864
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 67108864
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 67108864
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 67108864
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 67108864
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 67108864
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 603979776
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.unknown_length.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.unknown_length.dump
new file mode 100644
index 0000000000..7f2a42e0e9
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.reading_within_gop_sample_dependencies.unknown_length.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 67108864
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 67108864
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 67108864
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 67108864
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 67108864
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 67108864
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 67108864
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 67108864
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 67108864
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 67108864
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 67108864
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 67108864
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 67108864
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 67108864
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 603979776
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.unknown_length.dump b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.unknown_length.dump
new file mode 100644
index 0000000000..c3747ca083
--- /dev/null
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/h265_bframes.mp4.unknown_length.dump
@@ -0,0 +1,151 @@
+seekMap:
+  isSeekable = true
+  duration = 1000000
+  getPosition(0) = [[timeUs=0, position=44]]
+  getPosition(1) = [[timeUs=0, position=44]]
+  getPosition(500000) = [[timeUs=0, position=44]]
+  getPosition(1000000) = [[timeUs=0, position=44]]
+numberOfTracks = 1
+track 0:
+  total output bytes = 19395
+  sample count = 30
+  track duration = 1000000
+  format 0:
+    id = 1
+    containerMimeType = video/mp4
+    sampleMimeType = video/hevc
+    codecs = hvc1.1.6.L90.90
+    maxInputSize = 7848
+    maxNumReorderSamples = 2
+    width = 854
+    height = 480
+    frameRate = 30.00
+    maxSubLayers = 1
+    colorInfo:
+      colorRange = 2
+      lumaBitdepth = 8
+      chromaBitdepth = 8
+    metadata = entries=[TSSE: description=null: values=[Lavf60.16.100], Mp4Timestamp: creation time=0, modification time=0, timescale=1000]
+    initializationData:
+      data = length 84, hash 6FF5034A
+  sample 0:
+    time = 0
+    flags = 1
+    data = length 2520, hash 9DF10E5A
+  sample 1:
+    time = 33333
+    flags = 0
+    data = length 1227, hash C3B78778
+  sample 2:
+    time = 200000
+    flags = 0
+    data = length 7818, hash 3118F8A5
+  sample 3:
+    time = 133333
+    flags = 0
+    data = length 2314, hash F06B088
+  sample 4:
+    time = 66666
+    flags = 0
+    data = length 1066, hash 2F1BE2DB
+  sample 5:
+    time = 100000
+    flags = 0
+    data = length 106, hash CF881CF
+  sample 6:
+    time = 166666
+    flags = 0
+    data = length 69, hash 43B2E357
+  sample 7:
+    time = 366666
+    flags = 0
+    data = length 304, hash 19293C74
+  sample 8:
+    time = 300000
+    flags = 0
+    data = length 145, hash C3F16A
+  sample 9:
+    time = 233333
+    flags = 0
+    data = length 226, hash FDA9A38B
+  sample 10:
+    time = 266666
+    flags = 0
+    data = length 185, hash 9C800E54
+  sample 11:
+    time = 333333
+    flags = 0
+    data = length 90, hash D1EA90C4
+  sample 12:
+    time = 466666
+    flags = 0
+    data = length 298, hash F203E87C
+  sample 13:
+    time = 433333
+    flags = 0
+    data = length 276, hash 66430FFD
+  sample 14:
+    time = 400000
+    flags = 0
+    data = length 186, hash B985342A
+  sample 15:
+    time = 500000
+    flags = 0
+    data = length 279, hash 1EFA3459
+  sample 16:
+    time = 666666
+    flags = 0
+    data = length 265, hash 7FCB3588
+  sample 17:
+    time = 600000
+    flags = 0
+    data = length 214, hash EFA105EC
+  sample 18:
+    time = 533333
+    flags = 0
+    data = length 138, hash 5F4FDE79
+  sample 19:
+    time = 566666
+    flags = 0
+    data = length 122, hash 951D945A
+  sample 20:
+    time = 633333
+    flags = 0
+    data = length 103, hash 50A4D1ED
+  sample 21:
+    time = 833333
+    flags = 0
+    data = length 241, hash 290CE032
+  sample 22:
+    time = 766666
+    flags = 0
+    data = length 211, hash D120B486
+  sample 23:
+    time = 700000
+    flags = 0
+    data = length 103, hash D33CDF67
+  sample 24:
+    time = 733333
+    flags = 0
+    data = length 111, hash E8A78D5
+  sample 25:
+    time = 800000
+    flags = 0
+    data = length 119, hash 3FA7645D
+  sample 26:
+    time = 966666
+    flags = 0
+    data = length 261, hash 53B1BD3B
+  sample 27:
+    time = 900000
+    flags = 0
+    data = length 142, hash B45973DC
+  sample 28:
+    time = 866666
+    flags = 0
+    data = length 88, hash 757187AE
+  sample 29:
+    time = 933333
+    flags = 536870912
+    data = length 168, hash 8220F9BC
+tracksEnded = true
diff --git a/libraries/test_data/src/test/assets/media/mp4/h265_bframes.mp4 b/libraries/test_data/src/test/assets/media/mp4/h265_bframes.mp4
new file mode 100644
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