Fix preroll sample handling for non-keyframe media start positions

When processing edit lists in MP4 files, the media start position may be a non-keyframe. To ensure proper playback, the decoder must preroll to the preceding keyframe, as these preroll samples are essential for decoding but are not rendered. Issue: google/ExoPlayer#1659 #cherrypick PiperOrigin-RevId: 673457615
2024-09-11 10:58:54 -07:00 · 2024-09-11 10:58:54 -07:00 · f133e8d1f2
commit f133e8d1f2
parent d9a678483b
18 changed files with 978 additions and 421 deletions
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@ -13,6 +13,9 @@
 *   Transformer:
 *   Track Selection:
 *   Extractors:
+    *   Fix preroll sample handling for non-keyframe media start positions when
+        processing edit lists in MP4 files
+        ([#1659](https://github.com/google/ExoPlayer/issues/1659)).
 *   DataSource:
 *   Audio:
 *   Video:
--- a/libraries/common/src/main/java/androidx/media3/common/Format.java
+++ b/libraries/common/src/main/java/androidx/media3/common/Format.java
@ -166,6 +166,7 @@ public final class Format {
    @Nullable private List<byte[]> initializationData;
    @Nullable private DrmInitData drmInitData;
    private long subsampleOffsetUs;
+    private boolean hasPrerollSamples;

    // Video specific.

@ -256,6 +257,7 @@ public final class Format {
      this.initializationData = format.initializationData;
      this.drmInitData = format.drmInitData;
      this.subsampleOffsetUs = format.subsampleOffsetUs;
+      this.hasPrerollSamples = format.hasPrerollSamples;
      // Video specific.
      this.width = format.width;
      this.height = format.height;
@ -543,6 +545,18 @@ public final class Format {
      return this;
    }

+    /**
+     * Sets {@link Format#hasPrerollSamples}. The default value is {@code false}.
+     *
+     * @param hasPrerollSamples The {@link Format#hasPrerollSamples}.
+     * @return The builder.
+     */
+    @CanIgnoreReturnValue
+    public Builder setHasPrerollSamples(boolean hasPrerollSamples) {
+      this.hasPrerollSamples = hasPrerollSamples;
+      return this;
+    }
+
    // Video specific.

    /**
@ -952,6 +966,15 @@ public final class Format {
   */
  @UnstableApi public final long subsampleOffsetUs;

+  /**
+   * Indicates whether the stream contains preroll samples.
+   *
+   * <p>When this field is set to {@code true}, it means that the stream includes decode-only
+   * samples that occur before the intended playback start position. These samples are necessary for
+   * decoding but are not meant to be rendered and should be skipped after decoding.
+   */
+  @UnstableApi public final boolean hasPrerollSamples;
+
  // Video specific.

  /** The width of the video in pixels, or {@link #NO_VALUE} if unknown or not applicable. */
@ -1092,6 +1115,7 @@ public final class Format {
        builder.initializationData == null ? Collections.emptyList() : builder.initializationData;
    drmInitData = builder.drmInitData;
    subsampleOffsetUs = builder.subsampleOffsetUs;
+    hasPrerollSamples = builder.hasPrerollSamples;
    // Video specific.
    width = builder.width;
    height = builder.height;
--- a/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/source/ProgressiveMediaPeriod.java
+++ b/libraries/exoplayer/src/main/java/androidx/media3/exoplayer/source/ProgressiveMediaPeriod.java
@ -143,6 +143,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;

  private boolean seenFirstTrackSelection;
  private boolean notifyDiscontinuity;
+  private boolean pendingInitialDiscontinuity;
  private int enabledTrackCount;
  private boolean isLengthKnown;

@ -295,6 +296,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
        Assertions.checkState(!trackEnabledStates[track]);
        enabledTrackCount++;
        trackEnabledStates[track] = true;
+        pendingInitialDiscontinuity |= selection.getSelectedFormat().hasPrerollSamples;
        streams[i] = new SampleStreamImpl(track);
        streamResetFlags[i] = true;
        // If there's still a chance of avoiding a seek, try and seek within the sample queue.
@ -312,6 +314,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
    if (enabledTrackCount == 0) {
      pendingDeferredRetry = false;
      notifyDiscontinuity = false;
+      pendingInitialDiscontinuity = false;
      if (loader.isLoading()) {
        // Discard as much as we can synchronously.
        for (SampleQueue sampleQueue : sampleQueues) {
@ -387,6 +390,11 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;

  @Override
  public long readDiscontinuity() {
+    if (pendingInitialDiscontinuity) {
+      pendingInitialDiscontinuity = false;
+      return lastSeekPositionUs;
+    }
+
    if (notifyDiscontinuity
        && (loadingFinished || getExtractedSamplesCount() > extractedSamplesCountAtStartOfLoad)) {
      notifyDiscontinuity = false;
@ -451,6 +459,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
    pendingDeferredRetry = false;
    pendingResetPositionUs = positionUs;
    loadingFinished = false;
+    pendingInitialDiscontinuity = false;
    if (loader.isLoading()) {
      // Discard as much as we can synchronously.
      for (SampleQueue sampleQueue : sampleQueues) {
@ -810,6 +819,7 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
      }
      trackFormat = trackFormat.copyWithCryptoType(drmSessionManager.getCryptoType(trackFormat));
      trackArray[i] = new TrackGroup(/* id= */ Integer.toString(i), trackFormat);
+      pendingInitialDiscontinuity |= trackFormat.hasPrerollSamples;
    }
    trackState = new TrackState(new TrackGroupArray(trackArray), trackIsAudioVideoFlags);
    if (isSingleSample && durationUs == C.TIME_UNSET) {
--- a/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/BoxParser.java
+++ b/libraries/extractor/src/main/java/androidx/media3/extractor/mp4/BoxParser.java
@ -714,9 +714,8 @@ public final class BoxParser {
        // sorted, but will ensure that a) all sync frames are in-order and b) any out-of-order
        // frames are after their respective sync frames. This means that although the result of
        // this binary search might be slightly incorrect (due to out-of-order timestamps), the loop
-        // below that walks forward to find the next sync frame will result in a correct start
-        // index. The start index would also be correct if we walk backwards to the previous sync
-        // frame (https://github.com/google/ExoPlayer/issues/1659).
+        // below that walks backward to find the previous sync frame will result in a correct start
+        // index.
        startIndices[i] =
            Util.binarySearchFloor(
                timestamps, editMediaTime, /* inclusive= */ true, /* stayInBounds= */ true);
@ -726,13 +725,8 @@ public final class BoxParser {
                editMediaTime + editDuration,
                /* inclusive= */ omitZeroDurationClippedSample,
                /* stayInBounds= */ false);
-        while (startIndices[i] < endIndices[i]
-            && (flags[startIndices[i]] & C.BUFFER_FLAG_KEY_FRAME) == 0) {
-          // Applying the edit correctly would require prerolling from the previous sync sample. In
-          // the current implementation we advance to the next sync sample instead. Only other
-          // tracks (i.e. audio) will be rendered until the time of the first sync sample.
-          // See https://github.com/google/ExoPlayer/issues/1659.
-          startIndices[i]++;
+        while (startIndices[i] >= 0 && (flags[startIndices[i]] & C.BUFFER_FLAG_KEY_FRAME) == 0) {
+          startIndices[i]--;
        }
        editedSampleCount += endIndices[i] - startIndices[i];
        copyMetadata |= nextSampleIndex != startIndices[i];
@ -749,6 +743,7 @@ public final class BoxParser {
    long[] editedTimestamps = new long[editedSampleCount];
    long pts = 0;
    int sampleIndex = 0;
+    boolean hasPrerollSamples = false;
    for (int i = 0; i < track.editListDurations.length; i++) {
      long editMediaTime = track.editListMediaTimes[i];
      int startIndex = startIndices[i];
@ -764,8 +759,8 @@ public final class BoxParser {
        long timeInSegmentUs =
            Util.scaleLargeTimestamp(
                timestamps[j] - editMediaTime, C.MICROS_PER_SECOND, track.timescale);
-        if (canTrimSamplesWithTimestampChange(track.type)) {
-          timeInSegmentUs = max(0, timeInSegmentUs);
+        if (timeInSegmentUs < 0) {
+          hasPrerollSamples = true;
        }
        editedTimestamps[sampleIndex] = ptsUs + timeInSegmentUs;
        if (copyMetadata && editedSizes[sampleIndex] > editedMaximumSize) {
@ -777,6 +772,10 @@ public final class BoxParser {
    }
    long editedDurationUs =
        Util.scaleLargeTimestamp(pts, C.MICROS_PER_SECOND, track.movieTimescale);
+    if (hasPrerollSamples) {
+      Format format = track.format.buildUpon().setHasPrerollSamples(true).build();
+      track = track.copyWithFormat(format);
+    }
    return new TrackSampleTable(
        track,
        editedOffsets,
@ -787,12 +786,6 @@ public final class BoxParser {
        editedDurationUs);
  }

-  private static boolean canTrimSamplesWithTimestampChange(@C.TrackType int trackType) {
-    // Audio samples have an inherent duration and we can't trim data by changing the sample
-    // timestamp alone.
-    return trackType != C.TRACK_TYPE_AUDIO;
-  }
-
  @Nullable
  private static Metadata parseUdtaMeta(ParsableByteArray meta, int limit) {
    meta.skipBytes(Mp4Box.HEADER_SIZE);
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.0.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.0.dump
@ -1,14 +1,14 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
 track 0:
-  total output bytes = 2168517
-  sample count = 60
+  total output bytes = 3112471
+  sample count = 83
  format 0:
    id = 1
    sampleMimeType = video/dolby-vision
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
@ -29,242 +29,334 @@ track 0:
    initializationData:
      data = length 97, hash 32FB3D18
  sample 0:
+    time = -455000
+    flags = 1
+    data = length 78829, hash 9265686F
+  sample 1:
+    time = -321667
+    flags = 0
+    data = length 32262, hash 1AD10F61
+  sample 2:
+    time = -388334
+    flags = 0
+    data = length 18055, hash C6BED1E3
+  sample 3:
+    time = -188334
+    flags = 0
+    data = length 65604, hash AA006B06
+  sample 4:
+    time = -255000
+    flags = 0
+    data = length 25841, hash 5643AEFF
+  sample 5:
+    time = -55000
+    flags = 0
+    data = length 72552, hash 9535951C
+  sample 6:
+    time = -121667
+    flags = 0
+    data = length 23756, hash 4074D5AE
+  sample 7:
+    time = 78333
+    flags = 0
+    data = length 98274, hash 7BE5F53A
+  sample 8:
+    time = 11666
+    flags = 0
+    data = length 55804, hash D559D074
+  sample 9:
+    time = -21667
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+    data = length 12955, hash 35EE397F
+  sample 10:
+    time = 45000
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+    data = length 12066, hash 31FB52BD
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--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.1.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.1.dump
@ -1,8 +1,8 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.2.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.2.dump
@ -1,8 +1,8 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.3.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.3.dump
@ -1,8 +1,8 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.0.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.0.dump
@ -1,14 +1,14 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
 track 0:
-  total output bytes = 2168517
-  sample count = 60
+  total output bytes = 3112471
+  sample count = 83
  format 0:
    id = 1
    sampleMimeType = video/dolby-vision
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
@ -29,242 +29,334 @@ track 0:
    initializationData:
      data = length 97, hash 32FB3D18
  sample 0:
+    time = -455000
+    flags = 1
+    data = length 78829, hash 9265686F
+  sample 1:
+    time = -321667
+    flags = 0
+    data = length 32262, hash 1AD10F61
+  sample 2:
+    time = -388334
+    flags = 0
+    data = length 18055, hash C6BED1E3
+  sample 3:
+    time = -188334
+    flags = 0
+    data = length 65604, hash AA006B06
+  sample 4:
+    time = -255000
+    flags = 0
+    data = length 25841, hash 5643AEFF
+  sample 5:
+    time = -55000
+    flags = 0
+    data = length 72552, hash 9535951C
+  sample 6:
+    time = -121667
+    flags = 0
+    data = length 23756, hash 4074D5AE
+  sample 7:
+    time = 78333
+    flags = 0
+    data = length 98274, hash 7BE5F53A
+  sample 8:
+    time = 11666
+    flags = 0
+    data = length 55804, hash D559D074
+  sample 9:
+    time = -21667
+    flags = 0
+    data = length 12955, hash 35EE397F
+  sample 10:
+    time = 45000
+    flags = 0
+    data = length 12066, hash 31FB52BD
+  sample 11:
+    time = 211666
+    flags = 0
+    data = length 86506, hash 2FA2334C
+  sample 12:
+    time = 145000
+    flags = 0
+    data = length 35691, hash 37C2A1B3
+  sample 13:
+    time = 111666
+    flags = 0
+    data = length 9029, hash D49A1FBC
+  sample 14:
+    time = 178333
+    flags = 0
+    data = length 12198, hash BA7F090B
+  sample 15:
+    time = 345000
+    flags = 0
+    data = length 99669, hash 69FD95FB
+  sample 16:
+    time = 278333
+    flags = 0
+    data = length 35931, hash 7F52D49D
+  sample 17:
+    time = 245000
+    flags = 0
+    data = length 13955, hash 520B5A6A
+  sample 18:
+    time = 311666
+    flags = 0
+    data = length 12407, hash 5326719B
+  sample 19:
+    time = 478333
+    flags = 0
+    data = length 89991, hash A4198F94
+  sample 20:
+    time = 411666
+    flags = 0
+    data = length 25706, hash F2A4B2A4
+  sample 21:
+    time = 378333
+    flags = 0
+    data = length 11924, hash 508042C8
+  sample 22:
+    time = 445000
+    flags = 0
+    data = length 14949, hash 212C7161
+  sample 23:
    time = 611666
    flags = 1
    data = length 196349, hash 484B3706
-  sample 1:
+  sample 24:
    time = 545000
    flags = 0
    data = length 36093, hash 9964470A
-  sample 2:
+  sample 25:
    time = 511666
    flags = 0
    data = length 9196, hash 124A821F
-  sample 3:
+  sample 26:
    time = 578333
    flags = 0
    data = length 11337, hash 2A61C44F
-  sample 4:
+  sample 27:
    time = 745000
    flags = 0
    data = length 89197, hash E331760E
-  sample 5:
+  sample 28:
    time = 678333
    flags = 0
    data = length 27802, hash 280175A2
-  sample 6:
+  sample 29:
    time = 645000
    flags = 0
    data = length 9295, hash 1CC71F4D
-  sample 7:
+  sample 30:
    time = 711666
    flags = 0
    data = length 11844, hash 595DBFFA
-  sample 8:
+  sample 31:
    time = 878333
    flags = 0
    data = length 78369, hash 958807CA
-  sample 9:
+  sample 32:
    time = 811666
    flags = 0
    data = length 28320, hash 8B5DAC6A
-  sample 10:
+  sample 33:
    time = 778333
    flags = 0
    data = length 13845, hash 868C5F96
-  sample 11:
+  sample 34:
    time = 845000
    flags = 0
    data = length 13734, hash 2BF28058
-  sample 12:
+  sample 35:
    time = 1011666
    flags = 0
    data = length 60140, hash 4DCE6D29
-  sample 13:
+  sample 36:
    time = 945000
    flags = 0
    data = length 28024, hash 2808AC27
-  sample 14:
+  sample 37:
    time = 911666
    flags = 0
    data = length 14865, hash DA936298
-  sample 15:
+  sample 38:
    time = 978333
    flags = 0
    data = length 15631, hash F11D2528
-  sample 16:
+  sample 39:
    time = 1145000
    flags = 0
    data = length 59293, hash 1C3296CD
-  sample 17:
+  sample 40:
    time = 1078333
    flags = 0
    data = length 27545, hash 189E13B8
-  sample 18:
+  sample 41:
    time = 1045000
    flags = 0
    data = length 14959, hash A47356EF
-  sample 19:
+  sample 42:
    time = 1111666
    flags = 0
    data = length 15621, hash C391E893
-  sample 20:
+  sample 43:
    time = 1278333
    flags = 0
    data = length 66112, hash 54A454C4
-  sample 21:
+  sample 44:
    time = 1211666
    flags = 0
    data = length 33610, hash 4C3F57F2
-  sample 22:
+  sample 45:
    time = 1178333
    flags = 0
    data = length 13205, hash EC181CA7
-  sample 23:
+  sample 46:
    time = 1245000
    flags = 0
    data = length 18525, hash 20D8FE9D
-  sample 24:
+  sample 47:
    time = 1411666
    flags = 0
    data = length 63613, hash B807DB7E
-  sample 25:
+  sample 48:
    time = 1345000
    flags = 0
    data = length 40816, hash 2D023C8F
-  sample 26:
+  sample 49:
    time = 1311666
    flags = 0
    data = length 17728, hash B07033B9
-  sample 27:
+  sample 50:
    time = 1378333
    flags = 0
    data = length 13105, hash 4E3B7245
-  sample 28:
+  sample 51:
    time = 1546666
    flags = 0
    data = length 54500, hash 88F3013F
-  sample 29:
+  sample 52:
    time = 1478333
    flags = 0
    data = length 34711, hash 9918D286
-  sample 30:
+  sample 53:
    time = 1445000
    flags = 0
    data = length 14764, hash CF9044AB
-  sample 31:
+  sample 54:
    time = 1513333
    flags = 0
    data = length 16517, hash BA27C997
-  sample 32:
+  sample 55:
    time = 1680000
    flags = 1
    data = length 143217, hash A7D06C3F
-  sample 33:
+  sample 56:
    time = 1613333
    flags = 0
    data = length 32967, hash E490EDD3
-  sample 34:
+  sample 57:
    time = 1580000
    flags = 0
    data = length 17445, hash 5F91C2B8
-  sample 35:
+  sample 58:
    time = 1646666
    flags = 0
    data = length 14638, hash 775110FE
-  sample 36:
+  sample 59:
    time = 1813333
    flags = 0
    data = length 67665, hash A9A21D87
-  sample 37:
+  sample 60:
    time = 1746666
    flags = 0
    data = length 32392, hash 7E790D61
-  sample 38:
+  sample 61:
    time = 1713333
    flags = 0
    data = length 10589, hash 6EB324E3
-  sample 39:
+  sample 62:
    time = 1780000
    flags = 0
    data = length 18023, hash 29D03684
-  sample 40:
+  sample 63:
    time = 1946666
    flags = 0
    data = length 67946, hash 8135C195
-  sample 41:
+  sample 64:
    time = 1880000
    flags = 0
    data = length 41030, hash B6A9208
-  sample 42:
+  sample 65:
    time = 1846666
    flags = 0
    data = length 15110, hash BF682221
-  sample 43:
+  sample 66:
    time = 1913333
    flags = 0
    data = length 17245, hash 2BAFA805
-  sample 44:
+  sample 67:
    time = 2080000
    flags = 0
    data = length 57455, hash 2754BFA0
-  sample 45:
+  sample 68:
    time = 2013333
    flags = 0
    data = length 37067, hash CCE6C30F
-  sample 46:
+  sample 69:
    time = 1980000
    flags = 0
    data = length 14098, hash 60A5760F
-  sample 47:
+  sample 70:
    time = 2046666
    flags = 0
    data = length 20864, hash 94450211
-  sample 48:
+  sample 71:
    time = 2213333
    flags = 0
    data = length 62871, hash BA53494F
-  sample 49:
+  sample 72:
    time = 2146666
    flags = 0
    data = length 38596, hash 420335AC
-  sample 50:
+  sample 73:
    time = 2113333
    flags = 0
    data = length 17584, hash 2E024B02
-  sample 51:
+  sample 74:
    time = 2180000
    flags = 0
    data = length 18521, hash 7381819A
-  sample 52:
+  sample 75:
    time = 2346666
    flags = 0
    data = length 54835, hash F45163BF
-  sample 53:
+  sample 76:
    time = 2280000
    flags = 0
    data = length 29346, hash A57C757F
-  sample 54:
+  sample 77:
    time = 2246666
    flags = 0
    data = length 15815, hash 1B194C31
-  sample 55:
+  sample 78:
    time = 2313333
    flags = 0
    data = length 20390, hash A162AAD0
-  sample 56:
+  sample 79:
    time = 2480000
    flags = 0
    data = length 64262, hash 875514C7
-  sample 57:
+  sample 80:
    time = 2413333
    flags = 0
    data = length 39953, hash 3884739A
-  sample 58:
+  sample 81:
    time = 2380000
    flags = 0
    data = length 23136, hash 8AF1C1AD
-  sample 59:
+  sample 82:
    time = 2446666
    flags = 536870912
    data = length 26792, hash 3157758F
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.1.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.1.dump
@ -1,8 +1,8 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.2.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.2.dump
@ -1,8 +1,8 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.3.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.3.dump
@ -1,8 +1,8 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.unknown_length.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.reading_within_gop_sample_dependencies.unknown_length.dump
@ -1,14 +1,14 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
 track 0:
-  total output bytes = 2168517
-  sample count = 60
+  total output bytes = 3112471
+  sample count = 83
  format 0:
    id = 1
    sampleMimeType = video/dolby-vision
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
@ -29,242 +29,334 @@ track 0:
    initializationData:
      data = length 97, hash 32FB3D18
  sample 0:
+    time = -455000
+    flags = 1
+    data = length 78829, hash 9265686F
+  sample 1:
+    time = -321667
+    flags = 0
+    data = length 32262, hash 1AD10F61
+  sample 2:
+    time = -388334
+    flags = 0
+    data = length 18055, hash C6BED1E3
+  sample 3:
+    time = -188334
+    flags = 0
+    data = length 65604, hash AA006B06
+  sample 4:
+    time = -255000
+    flags = 0
+    data = length 25841, hash 5643AEFF
+  sample 5:
+    time = -55000
+    flags = 0
+    data = length 72552, hash 9535951C
+  sample 6:
+    time = -121667
+    flags = 0
+    data = length 23756, hash 4074D5AE
+  sample 7:
+    time = 78333
+    flags = 0
+    data = length 98274, hash 7BE5F53A
+  sample 8:
+    time = 11666
+    flags = 0
+    data = length 55804, hash D559D074
+  sample 9:
+    time = -21667
+    flags = 0
+    data = length 12955, hash 35EE397F
+  sample 10:
+    time = 45000
+    flags = 0
+    data = length 12066, hash 31FB52BD
+  sample 11:
+    time = 211666
+    flags = 0
+    data = length 86506, hash 2FA2334C
+  sample 12:
+    time = 145000
+    flags = 0
+    data = length 35691, hash 37C2A1B3
+  sample 13:
+    time = 111666
+    flags = 0
+    data = length 9029, hash D49A1FBC
+  sample 14:
+    time = 178333
+    flags = 0
+    data = length 12198, hash BA7F090B
+  sample 15:
+    time = 345000
+    flags = 0
+    data = length 99669, hash 69FD95FB
+  sample 16:
+    time = 278333
+    flags = 0
+    data = length 35931, hash 7F52D49D
+  sample 17:
+    time = 245000
+    flags = 0
+    data = length 13955, hash 520B5A6A
+  sample 18:
+    time = 311666
+    flags = 0
+    data = length 12407, hash 5326719B
+  sample 19:
+    time = 478333
+    flags = 0
+    data = length 89991, hash A4198F94
+  sample 20:
+    time = 411666
+    flags = 0
+    data = length 25706, hash F2A4B2A4
+  sample 21:
+    time = 378333
+    flags = 0
+    data = length 11924, hash 508042C8
+  sample 22:
+    time = 445000
+    flags = 0
+    data = length 14949, hash 212C7161
+  sample 23:
    time = 611666
    flags = 1
    data = length 196349, hash 484B3706
-  sample 1:
+  sample 24:
    time = 545000
    flags = 0
    data = length 36093, hash 9964470A
-  sample 2:
+  sample 25:
    time = 511666
    flags = 0
    data = length 9196, hash 124A821F
-  sample 3:
+  sample 26:
    time = 578333
    flags = 0
    data = length 11337, hash 2A61C44F
-  sample 4:
+  sample 27:
    time = 745000
    flags = 0
    data = length 89197, hash E331760E
-  sample 5:
+  sample 28:
    time = 678333
    flags = 0
    data = length 27802, hash 280175A2
-  sample 6:
+  sample 29:
    time = 645000
    flags = 0
    data = length 9295, hash 1CC71F4D
-  sample 7:
+  sample 30:
    time = 711666
    flags = 0
    data = length 11844, hash 595DBFFA
-  sample 8:
+  sample 31:
    time = 878333
    flags = 0
    data = length 78369, hash 958807CA
-  sample 9:
+  sample 32:
    time = 811666
    flags = 0
    data = length 28320, hash 8B5DAC6A
-  sample 10:
+  sample 33:
    time = 778333
    flags = 0
    data = length 13845, hash 868C5F96
-  sample 11:
+  sample 34:
    time = 845000
    flags = 0
    data = length 13734, hash 2BF28058
-  sample 12:
+  sample 35:
    time = 1011666
    flags = 0
    data = length 60140, hash 4DCE6D29
-  sample 13:
+  sample 36:
    time = 945000
    flags = 0
    data = length 28024, hash 2808AC27
-  sample 14:
+  sample 37:
    time = 911666
    flags = 0
    data = length 14865, hash DA936298
-  sample 15:
+  sample 38:
    time = 978333
    flags = 0
    data = length 15631, hash F11D2528
-  sample 16:
+  sample 39:
    time = 1145000
    flags = 0
    data = length 59293, hash 1C3296CD
-  sample 17:
+  sample 40:
    time = 1078333
    flags = 0
    data = length 27545, hash 189E13B8
-  sample 18:
+  sample 41:
    time = 1045000
    flags = 0
    data = length 14959, hash A47356EF
-  sample 19:
+  sample 42:
    time = 1111666
    flags = 0
    data = length 15621, hash C391E893
-  sample 20:
+  sample 43:
    time = 1278333
    flags = 0
    data = length 66112, hash 54A454C4
-  sample 21:
+  sample 44:
    time = 1211666
    flags = 0
    data = length 33610, hash 4C3F57F2
-  sample 22:
+  sample 45:
    time = 1178333
    flags = 0
    data = length 13205, hash EC181CA7
-  sample 23:
+  sample 46:
    time = 1245000
    flags = 0
    data = length 18525, hash 20D8FE9D
-  sample 24:
+  sample 47:
    time = 1411666
    flags = 0
    data = length 63613, hash B807DB7E
-  sample 25:
+  sample 48:
    time = 1345000
    flags = 0
    data = length 40816, hash 2D023C8F
-  sample 26:
+  sample 49:
    time = 1311666
    flags = 0
    data = length 17728, hash B07033B9
-  sample 27:
+  sample 50:
    time = 1378333
    flags = 0
    data = length 13105, hash 4E3B7245
-  sample 28:
+  sample 51:
    time = 1546666
    flags = 0
    data = length 54500, hash 88F3013F
-  sample 29:
+  sample 52:
    time = 1478333
    flags = 0
    data = length 34711, hash 9918D286
-  sample 30:
+  sample 53:
    time = 1445000
    flags = 0
    data = length 14764, hash CF9044AB
-  sample 31:
+  sample 54:
    time = 1513333
    flags = 0
    data = length 16517, hash BA27C997
-  sample 32:
+  sample 55:
    time = 1680000
    flags = 1
    data = length 143217, hash A7D06C3F
-  sample 33:
+  sample 56:
    time = 1613333
    flags = 0
    data = length 32967, hash E490EDD3
-  sample 34:
+  sample 57:
    time = 1580000
    flags = 0
    data = length 17445, hash 5F91C2B8
-  sample 35:
+  sample 58:
    time = 1646666
    flags = 0
    data = length 14638, hash 775110FE
-  sample 36:
+  sample 59:
    time = 1813333
    flags = 0
    data = length 67665, hash A9A21D87
-  sample 37:
+  sample 60:
    time = 1746666
    flags = 0
    data = length 32392, hash 7E790D61
-  sample 38:
+  sample 61:
    time = 1713333
    flags = 0
    data = length 10589, hash 6EB324E3
-  sample 39:
+  sample 62:
    time = 1780000
    flags = 0
    data = length 18023, hash 29D03684
-  sample 40:
+  sample 63:
    time = 1946666
    flags = 0
    data = length 67946, hash 8135C195
-  sample 41:
+  sample 64:
    time = 1880000
    flags = 0
    data = length 41030, hash B6A9208
-  sample 42:
+  sample 65:
    time = 1846666
    flags = 0
    data = length 15110, hash BF682221
-  sample 43:
+  sample 66:
    time = 1913333
    flags = 0
    data = length 17245, hash 2BAFA805
-  sample 44:
+  sample 67:
    time = 2080000
    flags = 0
    data = length 57455, hash 2754BFA0
-  sample 45:
+  sample 68:
    time = 2013333
    flags = 0
    data = length 37067, hash CCE6C30F
-  sample 46:
+  sample 69:
    time = 1980000
    flags = 0
    data = length 14098, hash 60A5760F
-  sample 47:
+  sample 70:
    time = 2046666
    flags = 0
    data = length 20864, hash 94450211
-  sample 48:
+  sample 71:
    time = 2213333
    flags = 0
    data = length 62871, hash BA53494F
-  sample 49:
+  sample 72:
    time = 2146666
    flags = 0
    data = length 38596, hash 420335AC
-  sample 50:
+  sample 73:
    time = 2113333
    flags = 0
    data = length 17584, hash 2E024B02
-  sample 51:
+  sample 74:
    time = 2180000
    flags = 0
    data = length 18521, hash 7381819A
-  sample 52:
+  sample 75:
    time = 2346666
    flags = 0
    data = length 54835, hash F45163BF
-  sample 53:
+  sample 76:
    time = 2280000
    flags = 0
    data = length 29346, hash A57C757F
-  sample 54:
+  sample 77:
    time = 2246666
    flags = 0
    data = length 15815, hash 1B194C31
-  sample 55:
+  sample 78:
    time = 2313333
    flags = 0
    data = length 20390, hash A162AAD0
-  sample 56:
+  sample 79:
    time = 2480000
    flags = 0
    data = length 64262, hash 875514C7
-  sample 57:
+  sample 80:
    time = 2413333
    flags = 0
    data = length 39953, hash 3884739A
-  sample 58:
+  sample 81:
    time = 2380000
    flags = 0
    data = length 23136, hash 8AF1C1AD
-  sample 59:
+  sample 82:
    time = 2446666
    flags = 536870912
    data = length 26792, hash 3157758F
--- a/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.unknown_length.dump
+++ b/libraries/test_data/src/test/assets/extractordumps/mp4/sample_edit_list.mp4.unknown_length.dump
@ -1,14 +1,14 @@
 seekMap:
  isSeekable = true
  duration = 2548333
-  getPosition(0) = [[timeUs=611666, position=16205]]
-  getPosition(1) = [[timeUs=611666, position=16205]]
+  getPosition(0) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
+  getPosition(1) = [[timeUs=-455000, position=5162], [timeUs=611666, position=16205]]
  getPosition(1274166) = [[timeUs=611666, position=16205], [timeUs=1680000, position=34939]]
  getPosition(2548333) = [[timeUs=1680000, position=34939]]
 numberOfTracks = 2
 track 0:
-  total output bytes = 2168517
-  sample count = 60
+  total output bytes = 3112471
+  sample count = 83
  format 0:
    id = 1
    sampleMimeType = video/dolby-vision
@ -17,7 +17,7 @@ track 0:
    maxNumReorderSamples = 2
    width = 1920
    height = 1080
-    frameRate = 23.544804
+    frameRate = 32.570312
    rotationDegrees = 90
    colorInfo:
      colorSpace = 6
@ -29,242 +29,334 @@ track 0:
    initializationData:
      data = length 97, hash 32FB3D18
  sample 0:
+    time = -455000
+    flags = 1
+    data = length 78829, hash 9265686F
+  sample 1:
+    time = -321667
+    flags = 0
+    data = length 32262, hash 1AD10F61
+  sample 2:
+    time = -388334
+    flags = 0
+    data = length 18055, hash C6BED1E3
+  sample 3:
+    time = -188334
+    flags = 0
+    data = length 65604, hash AA006B06
+  sample 4:
+    time = -255000
+    flags = 0
+    data = length 25841, hash 5643AEFF
+  sample 5:
+    time = -55000
+    flags = 0
+    data = length 72552, hash 9535951C
+  sample 6:
+    time = -121667
+    flags = 0
+    data = length 23756, hash 4074D5AE
+  sample 7:
+    time = 78333
+    flags = 0
+    data = length 98274, hash 7BE5F53A
+  sample 8:
+    time = 11666
+    flags = 0
+    data = length 55804, hash D559D074
+  sample 9:
+    time = -21667
+    flags = 0
+    data = length 12955, hash 35EE397F
+  sample 10:
+    time = 45000
+    flags = 0
+    data = length 12066, hash 31FB52BD
+  sample 11:
+    time = 211666
+    flags = 0
+    data = length 86506, hash 2FA2334C
+  sample 12:
+    time = 145000
+    flags = 0
+    data = length 35691, hash 37C2A1B3
+  sample 13:
+    time = 111666
+    flags = 0
+    data = length 9029, hash D49A1FBC
+  sample 14:
+    time = 178333
+    flags = 0
+    data = length 12198, hash BA7F090B
+  sample 15:
+    time = 345000
+    flags = 0
+    data = length 99669, hash 69FD95FB
+  sample 16:
+    time = 278333
+    flags = 0
+    data = length 35931, hash 7F52D49D
+  sample 17:
+    time = 245000
+    flags = 0
+    data = length 13955, hash 520B5A6A
+  sample 18:
+    time = 311666
+    flags = 0
+    data = length 12407, hash 5326719B
+  sample 19:
+    time = 478333
+    flags = 0
+    data = length 89991, hash A4198F94
+  sample 20:
+    time = 411666
+    flags = 0
+    data = length 25706, hash F2A4B2A4
+  sample 21:
+    time = 378333
+    flags = 0
+    data = length 11924, hash 508042C8
+  sample 22:
+    time = 445000
+    flags = 0
+    data = length 14949, hash 212C7161
+  sample 23:
    time = 611666
    flags = 1
    data = length 196349, hash 484B3706
-  sample 1:
+  sample 24:
    time = 545000
    flags = 0
    data = length 36093, hash 9964470A
-  sample 2:
+  sample 25:
    time = 511666
    flags = 0
    data = length 9196, hash 124A821F
-  sample 3:
+  sample 26:
    time = 578333
    flags = 0
    data = length 11337, hash 2A61C44F
-  sample 4:
+  sample 27:
    time = 745000
    flags = 0
    data = length 89197, hash E331760E
-  sample 5:
+  sample 28:
    time = 678333
    flags = 0
    data = length 27802, hash 280175A2
-  sample 6:
+  sample 29:
    time = 645000
    flags = 0
    data = length 9295, hash 1CC71F4D
-  sample 7:
+  sample 30:
    time = 711666
    flags = 0
    data = length 11844, hash 595DBFFA
-  sample 8:
+  sample 31:
    time = 878333
    flags = 0
    data = length 78369, hash 958807CA
-  sample 9:
+  sample 32:
    time = 811666
    flags = 0
    data = length 28320, hash 8B5DAC6A
-  sample 10:
+  sample 33:
    time = 778333
    flags = 0
    data = length 13845, hash 868C5F96
-  sample 11:
+  sample 34:
    time = 845000
    flags = 0
    data = length 13734, hash 2BF28058
-  sample 12:
+  sample 35:
    time = 1011666
    flags = 0
    data = length 60140, hash 4DCE6D29
-  sample 13:
+  sample 36:
    time = 945000
    flags = 0
    data = length 28024, hash 2808AC27
-  sample 14:
+  sample 37:
    time = 911666
    flags = 0
    data = length 14865, hash DA936298
-  sample 15:
+  sample 38:
    time = 978333
    flags = 0
    data = length 15631, hash F11D2528
-  sample 16:
+  sample 39:
    time = 1145000
    flags = 0
    data = length 59293, hash 1C3296CD
-  sample 17:
+  sample 40:
    time = 1078333
    flags = 0
    data = length 27545, hash 189E13B8
-  sample 18:
+  sample 41:
    time = 1045000
    flags = 0
    data = length 14959, hash A47356EF
-  sample 19:
+  sample 42:
    time = 1111666
    flags = 0
    data = length 15621, hash C391E893
-  sample 20:
+  sample 43:
    time = 1278333
    flags = 0
    data = length 66112, hash 54A454C4
-  sample 21:
+  sample 44:
    time = 1211666
    flags = 0
    data = length 33610, hash 4C3F57F2
-  sample 22:
+  sample 45:
    time = 1178333
    flags = 0
    data = length 13205, hash EC181CA7
-  sample 23:
+  sample 46:
    time = 1245000
    flags = 0
    data = length 18525, hash 20D8FE9D
-  sample 24:
+  sample 47:
    time = 1411666
    flags = 0
    data = length 63613, hash B807DB7E
-  sample 25:
+  sample 48:
    time = 1345000
    flags = 0
    data = length 40816, hash 2D023C8F
-  sample 26:
+  sample 49:
    time = 1311666
    flags = 0
    data = length 17728, hash B07033B9
-  sample 27:
+  sample 50:
    time = 1378333
    flags = 0
    data = length 13105, hash 4E3B7245
-  sample 28:
+  sample 51:
    time = 1546666
    flags = 0
    data = length 54500, hash 88F3013F
-  sample 29:
+  sample 52:
    time = 1478333
    flags = 0
    data = length 34711, hash 9918D286
-  sample 30:
+  sample 53:
    time = 1445000
    flags = 0
    data = length 14764, hash CF9044AB
-  sample 31:
+  sample 54:
    time = 1513333
    flags = 0
    data = length 16517, hash BA27C997
-  sample 32:
+  sample 55:
    time = 1680000
    flags = 1
    data = length 143217, hash A7D06C3F
-  sample 33:
+  sample 56:
    time = 1613333
    flags = 0
    data = length 32967, hash E490EDD3
-  sample 34:
+  sample 57:
    time = 1580000
    flags = 0
    data = length 17445, hash 5F91C2B8
-  sample 35:
+  sample 58:
    time = 1646666
    flags = 0
    data = length 14638, hash 775110FE
-  sample 36:
+  sample 59:
    time = 1813333
    flags = 0
    data = length 67665, hash A9A21D87
-  sample 37:
+  sample 60:
    time = 1746666
    flags = 0
    data = length 32392, hash 7E790D61
-  sample 38:
+  sample 61:
    time = 1713333
    flags = 0
    data = length 10589, hash 6EB324E3
-  sample 39:
+  sample 62:
    time = 1780000
    flags = 0
    data = length 18023, hash 29D03684
-  sample 40:
+  sample 63:
    time = 1946666
    flags = 0
    data = length 67946, hash 8135C195
-  sample 41:
+  sample 64:
    time = 1880000
    flags = 0
    data = length 41030, hash B6A9208
-  sample 42:
+  sample 65:
    time = 1846666
    flags = 0
    data = length 15110, hash BF682221
-  sample 43:
+  sample 66:
    time = 1913333
    flags = 0
    data = length 17245, hash 2BAFA805
-  sample 44:
+  sample 67:
    time = 2080000
    flags = 0
    data = length 57455, hash 2754BFA0
-  sample 45:
+  sample 68:
    time = 2013333
    flags = 0
    data = length 37067, hash CCE6C30F
-  sample 46:
+  sample 69:
    time = 1980000
    flags = 0
    data = length 14098, hash 60A5760F
-  sample 47:
+  sample 70:
    time = 2046666
    flags = 0
    data = length 20864, hash 94450211
-  sample 48:
+  sample 71:
    time = 2213333
    flags = 0
    data = length 62871, hash BA53494F
-  sample 49:
+  sample 72:
    time = 2146666
    flags = 0
    data = length 38596, hash 420335AC
-  sample 50:
+  sample 73:
    time = 2113333
    flags = 0
    data = length 17584, hash 2E024B02
-  sample 51:
+  sample 74:
    time = 2180000
    flags = 0
    data = length 18521, hash 7381819A
-  sample 52:
+  sample 75:
    time = 2346666
    flags = 0
    data = length 54835, hash F45163BF
-  sample 53:
+  sample 76:
    time = 2280000
    flags = 0
    data = length 29346, hash A57C757F
-  sample 54:
+  sample 77:
    time = 2246666
    flags = 0
    data = length 15815, hash 1B194C31
-  sample 55:
+  sample 78:
    time = 2313333
    flags = 0
    data = length 20390, hash A162AAD0
-  sample 56:
+  sample 79:
    time = 2480000
    flags = 0
    data = length 64262, hash 875514C7
-  sample 57:
+  sample 80:
    time = 2413333
    flags = 0
    data = length 39953, hash 3884739A
-  sample 58:
+  sample 81:
    time = 2380000
    flags = 0
    data = length 23136, hash 8AF1C1AD
-  sample 59:
+  sample 82:
    time = 2446666
    flags = 536870912
    data = length 26792, hash 3157758F
--- a/libraries/test_data/src/test/assets/playbackdumps/mp4/sample_edit_list.mp4.dump
+++ b/libraries/test_data/src/test/assets/playbackdumps/mp4/sample_edit_list.mp4.dump
@ -793,430 +793,591 @@ MediaCodecAdapter (exotest.audio.aac):
      rendered = false
 MediaCodecAdapter (exotest.video.hevc):
  inputBuffers:
-    count = 61
+    count = 84
    input buffer #0:
+      timeUs = 999999545000
+      contents = length 78829, hash 9265686F
+    input buffer #1:
+      timeUs = 999999678333
+      contents = length 32262, hash 1AD10F61
+    input buffer #2:
+      timeUs = 999999611666
+      contents = length 18055, hash C6BED1E3
+    input buffer #3:
+      timeUs = 999999811666
+      contents = length 65604, hash AA006B06
+    input buffer #4:
+      timeUs = 999999745000
+      contents = length 25841, hash 5643AEFF
+    input buffer #5:
+      timeUs = 999999945000
+      contents = length 72552, hash 9535951C
+    input buffer #6:
+      timeUs = 999999878333
+      contents = length 23756, hash 4074D5AE
+    input buffer #7:
+      timeUs = 1000000078333
+      contents = length 98274, hash 7BE5F53A
+    input buffer #8:
+      timeUs = 1000000011666
+      contents = length 55804, hash D559D074
+    input buffer #9:
+      timeUs = 999999978333
+      contents = length 12955, hash 35EE397F
+    input buffer #10:
+      timeUs = 1000000045000
+      contents = length 12066, hash 31FB52BD
+    input buffer #11:
+      timeUs = 1000000211666
+      contents = length 86506, hash 2FA2334C
+    input buffer #12:
+      timeUs = 1000000145000
+      contents = length 35691, hash 37C2A1B3
+    input buffer #13:
+      timeUs = 1000000111666
+      contents = length 9029, hash D49A1FBC
+    input buffer #14:
+      timeUs = 1000000178333
+      contents = length 12198, hash BA7F090B
+    input buffer #15:
+      timeUs = 1000000345000
+      contents = length 99669, hash 69FD95FB
+    input buffer #16:
+      timeUs = 1000000278333
+      contents = length 35931, hash 7F52D49D
+    input buffer #17:
+      timeUs = 1000000245000
+      contents = length 13955, hash 520B5A6A
+    input buffer #18:
+      timeUs = 1000000311666
+      contents = length 12407, hash 5326719B
+    input buffer #19:
+      timeUs = 1000000478333
+      contents = length 89991, hash A4198F94
+    input buffer #20:
+      timeUs = 1000000411666
+      contents = length 25706, hash F2A4B2A4
+    input buffer #21:
+      timeUs = 1000000378333
+      contents = length 11924, hash 508042C8
+    input buffer #22:
+      timeUs = 1000000445000
+      contents = length 14949, hash 212C7161
+    input buffer #23:
      timeUs = 1000000611666
      contents = length 196349, hash 484B3706
-    input buffer #1:
+    input buffer #24:
      timeUs = 1000000545000
      contents = length 36093, hash 9964470A
-    input buffer #2:
+    input buffer #25:
      timeUs = 1000000511666
      contents = length 9196, hash 124A821F
-    input buffer #3:
+    input buffer #26:
      timeUs = 1000000578333
      contents = length 11337, hash 2A61C44F
-    input buffer #4:
+    input buffer #27:
      timeUs = 1000000745000
      contents = length 89197, hash E331760E
-    input buffer #5:
+    input buffer #28:
      timeUs = 1000000678333
      contents = length 27802, hash 280175A2
-    input buffer #6:
+    input buffer #29:
      timeUs = 1000000645000
      contents = length 9295, hash 1CC71F4D
-    input buffer #7:
+    input buffer #30:
      timeUs = 1000000711666
      contents = length 11844, hash 595DBFFA
-    input buffer #8:
+    input buffer #31:
      timeUs = 1000000878333
      contents = length 78369, hash 958807CA
-    input buffer #9:
+    input buffer #32:
      timeUs = 1000000811666
      contents = length 28320, hash 8B5DAC6A
-    input buffer #10:
+    input buffer #33:
      timeUs = 1000000778333
      contents = length 13845, hash 868C5F96
-    input buffer #11:
+    input buffer #34:
      timeUs = 1000000845000
      contents = length 13734, hash 2BF28058
-    input buffer #12:
+    input buffer #35:
      timeUs = 1000001011666
      contents = length 60140, hash 4DCE6D29
-    input buffer #13:
+    input buffer #36:
      timeUs = 1000000945000
      contents = length 28024, hash 2808AC27
-    input buffer #14:
+    input buffer #37:
      timeUs = 1000000911666
      contents = length 14865, hash DA936298
-    input buffer #15:
+    input buffer #38:
      timeUs = 1000000978333
      contents = length 15631, hash F11D2528
-    input buffer #16:
+    input buffer #39:
      timeUs = 1000001145000
      contents = length 59293, hash 1C3296CD
-    input buffer #17:
+    input buffer #40:
      timeUs = 1000001078333
      contents = length 27545, hash 189E13B8
-    input buffer #18:
+    input buffer #41:
      timeUs = 1000001045000
      contents = length 14959, hash A47356EF
-    input buffer #19:
+    input buffer #42:
      timeUs = 1000001111666
      contents = length 15621, hash C391E893
-    input buffer #20:
+    input buffer #43:
      timeUs = 1000001278333
      contents = length 66112, hash 54A454C4
-    input buffer #21:
+    input buffer #44:
      timeUs = 1000001211666
      contents = length 33610, hash 4C3F57F2
-    input buffer #22:
+    input buffer #45:
      timeUs = 1000001178333
      contents = length 13205, hash EC181CA7
-    input buffer #23:
+    input buffer #46:
      timeUs = 1000001245000
      contents = length 18525, hash 20D8FE9D
-    input buffer #24:
+    input buffer #47:
      timeUs = 1000001411666
      contents = length 63613, hash B807DB7E
-    input buffer #25:
+    input buffer #48:
      timeUs = 1000001345000
      contents = length 40816, hash 2D023C8F
-    input buffer #26:
+    input buffer #49:
      timeUs = 1000001311666
      contents = length 17728, hash B07033B9
-    input buffer #27:
+    input buffer #50:
      timeUs = 1000001378333
      contents = length 13105, hash 4E3B7245
-    input buffer #28:
+    input buffer #51:
      timeUs = 1000001546666
      contents = length 54500, hash 88F3013F
-    input buffer #29:
+    input buffer #52:
      timeUs = 1000001478333
      contents = length 34711, hash 9918D286
-    input buffer #30:
+    input buffer #53:
      timeUs = 1000001445000
      contents = length 14764, hash CF9044AB
-    input buffer #31:
+    input buffer #54:
      timeUs = 1000001513333
      contents = length 16517, hash BA27C997
-    input buffer #32:
+    input buffer #55:
      timeUs = 1000001680000
      contents = length 143217, hash A7D06C3F
-    input buffer #33:
+    input buffer #56:
      timeUs = 1000001613333
      contents = length 32967, hash E490EDD3
-    input buffer #34:
+    input buffer #57:
      timeUs = 1000001580000
      contents = length 17445, hash 5F91C2B8
-    input buffer #35:
+    input buffer #58:
      timeUs = 1000001646666
      contents = length 14638, hash 775110FE
-    input buffer #36:
+    input buffer #59:
      timeUs = 1000001813333
      contents = length 67665, hash A9A21D87
-    input buffer #37:
+    input buffer #60:
      timeUs = 1000001746666
      contents = length 32392, hash 7E790D61
-    input buffer #38:
+    input buffer #61:
      timeUs = 1000001713333
      contents = length 10589, hash 6EB324E3
-    input buffer #39:
+    input buffer #62:
      timeUs = 1000001780000
      contents = length 18023, hash 29D03684
-    input buffer #40:
+    input buffer #63:
      timeUs = 1000001946666
      contents = length 67946, hash 8135C195
-    input buffer #41:
+    input buffer #64:
      timeUs = 1000001880000
      contents = length 41030, hash B6A9208
-    input buffer #42:
+    input buffer #65:
      timeUs = 1000001846666
      contents = length 15110, hash BF682221
-    input buffer #43:
+    input buffer #66:
      timeUs = 1000001913333
      contents = length 17245, hash 2BAFA805
-    input buffer #44:
+    input buffer #67:
      timeUs = 1000002080000
      contents = length 57455, hash 2754BFA0
-    input buffer #45:
+    input buffer #68:
      timeUs = 1000002013333
      contents = length 37067, hash CCE6C30F
-    input buffer #46:
+    input buffer #69:
      timeUs = 1000001980000
      contents = length 14098, hash 60A5760F
-    input buffer #47:
+    input buffer #70:
      timeUs = 1000002046666
      contents = length 20864, hash 94450211
-    input buffer #48:
+    input buffer #71:
      timeUs = 1000002213333
      contents = length 62871, hash BA53494F
-    input buffer #49:
+    input buffer #72:
      timeUs = 1000002146666
      contents = length 38596, hash 420335AC
-    input buffer #50:
+    input buffer #73:
      timeUs = 1000002113333
      contents = length 17584, hash 2E024B02
-    input buffer #51:
+    input buffer #74:
      timeUs = 1000002180000
      contents = length 18521, hash 7381819A
-    input buffer #52:
+    input buffer #75:
      timeUs = 1000002346666
      contents = length 54835, hash F45163BF
-    input buffer #53:
+    input buffer #76:
      timeUs = 1000002280000
      contents = length 29346, hash A57C757F
-    input buffer #54:
+    input buffer #77:
      timeUs = 1000002246666
      contents = length 15815, hash 1B194C31
-    input buffer #55:
+    input buffer #78:
      timeUs = 1000002313333
      contents = length 20390, hash A162AAD0
-    input buffer #56:
+    input buffer #79:
      timeUs = 1000002480000
      contents = length 64262, hash 875514C7
-    input buffer #57:
+    input buffer #80:
      timeUs = 1000002413333
      contents = length 39953, hash 3884739A
-    input buffer #58:
+    input buffer #81:
      timeUs = 1000002380000
      contents = length 23136, hash 8AF1C1AD
-    input buffer #59:
+    input buffer #82:
      timeUs = 1000002446666
      contents = length 26792, hash 3157758F
-    input buffer #60:
+    input buffer #83:
      timeUs = 0
      flags = 4
      contents = length 0, hash 1
  outputBuffers:
-    count = 60
+    count = 83
    output buffer #0:
+      timeUs = 999999545000
+      size = 78829
+      rendered = false
+    output buffer #1:
+      timeUs = 999999678333
+      size = 32262
+      rendered = false
+    output buffer #2:
+      timeUs = 999999611666
+      size = 18055
+      rendered = false
+    output buffer #3:
+      timeUs = 999999811666
+      size = 65604
+      rendered = false
+    output buffer #4:
+      timeUs = 999999745000
+      size = 25841
+      rendered = false
+    output buffer #5:
+      timeUs = 999999945000
+      size = 72552
+      rendered = false
+    output buffer #6:
+      timeUs = 999999878333
+      size = 23756
+      rendered = false
+    output buffer #7:
+      timeUs = 1000000078333
+      size = 98274
+      rendered = true
+    output buffer #8:
+      timeUs = 1000000011666
+      size = 55804
+      rendered = true
+    output buffer #9:
+      timeUs = 999999978333
+      size = 12955
+      rendered = false
+    output buffer #10:
+      timeUs = 1000000045000
+      size = 12066
+      rendered = true
+    output buffer #11:
+      timeUs = 1000000211666
+      size = 86506
+      rendered = true
+    output buffer #12:
+      timeUs = 1000000145000
+      size = 35691
+      rendered = true
+    output buffer #13:
+      timeUs = 1000000111666
+      size = 9029
+      rendered = true
+    output buffer #14:
+      timeUs = 1000000178333
+      size = 12198
+      rendered = true
+    output buffer #15:
+      timeUs = 1000000345000
+      size = 99669
+      rendered = true
+    output buffer #16:
+      timeUs = 1000000278333
+      size = 35931
+      rendered = true
+    output buffer #17:
+      timeUs = 1000000245000
+      size = 13955
+      rendered = true
+    output buffer #18:
+      timeUs = 1000000311666
+      size = 12407
+      rendered = true
+    output buffer #19:
+      timeUs = 1000000478333
+      size = 89991
+      rendered = true
+    output buffer #20:
+      timeUs = 1000000411666
+      size = 25706
+      rendered = true
+    output buffer #21:
+      timeUs = 1000000378333
+      size = 11924
+      rendered = true
+    output buffer #22:
+      timeUs = 1000000445000
+      size = 14949
+      rendered = true
+    output buffer #23:
      timeUs = 1000000611666
      size = 196349
      rendered = true
-    output buffer #1:
+    output buffer #24:
      timeUs = 1000000545000
      size = 36093
      rendered = true
-    output buffer #2:
+    output buffer #25:
      timeUs = 1000000511666
      size = 9196
      rendered = true
-    output buffer #3:
+    output buffer #26:
      timeUs = 1000000578333
      size = 11337
      rendered = true
-    output buffer #4:
+    output buffer #27:
      timeUs = 1000000745000
      size = 89197
      rendered = true
-    output buffer #5:
+    output buffer #28:
      timeUs = 1000000678333
      size = 27802
      rendered = true
-    output buffer #6:
+    output buffer #29:
      timeUs = 1000000645000
      size = 9295
      rendered = true
-    output buffer #7:
+    output buffer #30:
      timeUs = 1000000711666
      size = 11844
      rendered = true
-    output buffer #8:
+    output buffer #31:
      timeUs = 1000000878333
      size = 78369
      rendered = true
-    output buffer #9:
+    output buffer #32:
      timeUs = 1000000811666
      size = 28320
      rendered = true
-    output buffer #10:
+    output buffer #33:
      timeUs = 1000000778333
      size = 13845
      rendered = true
-    output buffer #11:
+    output buffer #34:
      timeUs = 1000000845000
      size = 13734
      rendered = true
-    output buffer #12:
+    output buffer #35:
      timeUs = 1000001011666
      size = 60140
      rendered = true
-    output buffer #13:
+    output buffer #36:
      timeUs = 1000000945000
      size = 28024
      rendered = true
-    output buffer #14:
+    output buffer #37:
      timeUs = 1000000911666
      size = 14865
      rendered = true
-    output buffer #15:
+    output buffer #38:
      timeUs = 1000000978333
      size = 15631
      rendered = true
-    output buffer #16:
+    output buffer #39:
      timeUs = 1000001145000
      size = 59293
      rendered = true
-    output buffer #17:
+    output buffer #40:
      timeUs = 1000001078333
      size = 27545
      rendered = true
-    output buffer #18:
+    output buffer #41:
      timeUs = 1000001045000
      size = 14959
      rendered = true
-    output buffer #19:
+    output buffer #42:
      timeUs = 1000001111666
      size = 15621
      rendered = true
-    output buffer #20:
+    output buffer #43:
      timeUs = 1000001278333
      size = 66112
      rendered = true
-    output buffer #21:
+    output buffer #44:
      timeUs = 1000001211666
      size = 33610
      rendered = true
-    output buffer #22:
+    output buffer #45:
      timeUs = 1000001178333
      size = 13205
      rendered = true
-    output buffer #23:
+    output buffer #46:
      timeUs = 1000001245000
      size = 18525
      rendered = true
-    output buffer #24:
+    output buffer #47:
      timeUs = 1000001411666
      size = 63613
      rendered = true
-    output buffer #25:
+    output buffer #48:
      timeUs = 1000001345000
      size = 40816
      rendered = true
-    output buffer #26:
+    output buffer #49:
      timeUs = 1000001311666
      size = 17728
      rendered = true
-    output buffer #27:
+    output buffer #50:
      timeUs = 1000001378333
      size = 13105
      rendered = true
-    output buffer #28:
+    output buffer #51:
      timeUs = 1000001546666
      size = 54500
      rendered = true
-    output buffer #29:
+    output buffer #52:
      timeUs = 1000001478333
      size = 34711
      rendered = true
-    output buffer #30:
+    output buffer #53:
      timeUs = 1000001445000
      size = 14764
      rendered = true
-    output buffer #31:
+    output buffer #54:
      timeUs = 1000001513333
      size = 16517
      rendered = true
-    output buffer #32:
+    output buffer #55:
      timeUs = 1000001680000
      size = 143217
      rendered = true
-    output buffer #33:
+    output buffer #56:
      timeUs = 1000001613333
      size = 32967
      rendered = true
-    output buffer #34:
+    output buffer #57:
      timeUs = 1000001580000
      size = 17445
      rendered = true
-    output buffer #35:
+    output buffer #58:
      timeUs = 1000001646666
      size = 14638
      rendered = true
-    output buffer #36:
+    output buffer #59:
      timeUs = 1000001813333
      size = 67665
      rendered = true
-    output buffer #37:
+    output buffer #60:
      timeUs = 1000001746666
      size = 32392
      rendered = true
-    output buffer #38:
+    output buffer #61:
      timeUs = 1000001713333
      size = 10589
      rendered = true
-    output buffer #39:
+    output buffer #62:
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      size = 18023
      rendered = true
-    output buffer #40:
+    output buffer #63:
      timeUs = 1000001946666
      size = 67946
      rendered = true
-    output buffer #41:
+    output buffer #64:
      timeUs = 1000001880000
      size = 41030
      rendered = true
-    output buffer #42:
+    output buffer #65:
      timeUs = 1000001846666
      size = 15110
      rendered = true
-    output buffer #43:
+    output buffer #66:
      timeUs = 1000001913333
      size = 17245
      rendered = true
-    output buffer #44:
+    output buffer #67:
      timeUs = 1000002080000
      size = 57455
      rendered = true
-    output buffer #45:
+    output buffer #68:
      timeUs = 1000002013333
      size = 37067
      rendered = true
-    output buffer #46:
+    output buffer #69:
      timeUs = 1000001980000
      size = 14098
      rendered = true
-    output buffer #47:
+    output buffer #70:
      timeUs = 1000002046666
      size = 20864
      rendered = true
-    output buffer #48:
+    output buffer #71:
      timeUs = 1000002213333
      size = 62871
      rendered = true
-    output buffer #49:
+    output buffer #72:
      timeUs = 1000002146666
      size = 38596
      rendered = true
-    output buffer #50:
+    output buffer #73:
      timeUs = 1000002113333
      size = 17584
      rendered = true
-    output buffer #51:
+    output buffer #74:
      timeUs = 1000002180000
      size = 18521
      rendered = true
-    output buffer #52:
+    output buffer #75:
      timeUs = 1000002346666
      size = 54835
      rendered = true
-    output buffer #53:
+    output buffer #76:
      timeUs = 1000002280000
      size = 29346
      rendered = true
-    output buffer #54:
+    output buffer #77:
      timeUs = 1000002246666
      size = 15815
      rendered = true
-    output buffer #55:
+    output buffer #78:
      timeUs = 1000002313333
      size = 20390
      rendered = true
-    output buffer #56:
+    output buffer #79:
      timeUs = 1000002480000
      size = 64262
      rendered = true
-    output buffer #57:
+    output buffer #80:
      timeUs = 1000002413333
      size = 39953
      rendered = true
-    output buffer #58:
+    output buffer #81:
      timeUs = 1000002380000
      size = 23136
      rendered = true
-    output buffer #59:
+    output buffer #82:
      timeUs = 1000002446666
      size = 26792
      rendered = true
--- a/libraries/test_data/src/test/assets/transformerdumps/mp4/iibbibb_editlist_videoonly.mp4/transmuxed.dump
+++ b/libraries/test_data/src/test/assets/transformerdumps/mp4/iibbibb_editlist_videoonly.mp4/transmuxed.dump
@ -22,7 +22,7 @@ sample:
  dataHashCode = 1491581480
  size = 7804
  isKeyFrame = true
-  presentationTimeUs = 0
+  presentationTimeUs = -500000
 sample:
  trackType = video
  dataHashCode = -1689048121
--- a/libraries/test_utils/src/main/java/androidx/media3/test/utils/FakeExtractorOutput.java
+++ b/libraries/test_utils/src/main/java/androidx/media3/test/utils/FakeExtractorOutput.java
@ -65,13 +65,9 @@ public final class FakeExtractorOutput implements ExtractorOutput, Dumper.Dumpab
  @Override
  public void seekMap(SeekMap seekMap) {
    if (seekMap.isSeekable()) {
-      SeekMap.SeekPoints seekPoints = seekMap.getSeekPoints(0);
-      if (!seekPoints.first.equals(seekPoints.second)) {
-        throw new IllegalStateException("SeekMap defines two seek points for t=0");
-      }
      long durationUs = seekMap.getDurationUs();
      if (durationUs != C.TIME_UNSET) {
-        seekPoints = seekMap.getSeekPoints(durationUs);
+        SeekMap.SeekPoints seekPoints = seekMap.getSeekPoints(durationUs);
        if (!seekPoints.first.equals(seekPoints.second)) {
          throw new IllegalStateException("SeekMap defines two seek points for t=durationUs");
        }
--- a/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerEndToEndTest.java
+++ b/libraries/transformer/src/androidTest/java/androidx/media3/transformer/TransformerEndToEndTest.java
@ -1858,9 +1858,11 @@ public class TransformerEndToEndTest {
    videoTrack.assertSampleCount(expectedSampleCount);
    assertThat(videoTrack.getSampleTimeUs(/* index= */ 0)).isEqualTo(0);
    int sampleIndexWithLargestSampleTime = 10;
-    assertThat(videoTrack.getSampleTimeUs(sampleIndexWithLargestSampleTime)).isEqualTo(11_500_000);
+    // TODO: b/365992945 - Address the issue of sample timeUs increasing due to negative timestamps
+    // caused by the edit list. The correct values should be 11_500_000 and 9_500_000 respectively.
+    assertThat(videoTrack.getSampleTimeUs(sampleIndexWithLargestSampleTime)).isEqualTo(12_000_000);
    assertThat(videoTrack.getSampleTimeUs(/* index= */ expectedSampleCount - 1))
-        .isEqualTo(9_500_000);
+        .isEqualTo(10_000_000);
  }

  @Test