mirror of
https://github.com/Pinball3D/Rabbit-R1.git
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272 lines
11 KiB
Java
272 lines
11 KiB
Java
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package androidx.media3.extractor;
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import androidx.media3.common.util.Assertions;
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import androidx.media3.common.util.Util;
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import androidx.media3.extractor.SeekMap;
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import java.io.IOException;
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/* loaded from: classes2.dex */
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public abstract class BinarySearchSeeker {
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private static final long MAX_SKIP_BYTES = 262144;
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private final int minimumSearchRange;
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protected final BinarySearchSeekMap seekMap;
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protected SeekOperationParams seekOperationParams;
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protected final TimestampSeeker timestampSeeker;
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/* loaded from: classes2.dex */
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public static final class DefaultSeekTimestampConverter implements SeekTimestampConverter {
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@Override // androidx.media3.extractor.BinarySearchSeeker.SeekTimestampConverter
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public long timeUsToTargetTime(long j) {
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return j;
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}
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}
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/* JADX INFO: Access modifiers changed from: protected */
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/* loaded from: classes2.dex */
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public interface SeekTimestampConverter {
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long timeUsToTargetTime(long j);
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}
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/* JADX INFO: Access modifiers changed from: protected */
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/* loaded from: classes2.dex */
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public interface TimestampSeeker {
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default void onSeekFinished() {
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}
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TimestampSearchResult searchForTimestamp(ExtractorInput extractorInput, long j) throws IOException;
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}
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public final SeekMap getSeekMap() {
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return this.seekMap;
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}
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public final boolean isSeeking() {
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return this.seekOperationParams != null;
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}
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protected void onSeekOperationFinished(boolean z, long j) {
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}
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/* JADX INFO: Access modifiers changed from: protected */
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public BinarySearchSeeker(SeekTimestampConverter seekTimestampConverter, TimestampSeeker timestampSeeker, long j, long j2, long j3, long j4, long j5, long j6, int i) {
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this.timestampSeeker = timestampSeeker;
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this.minimumSearchRange = i;
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this.seekMap = new BinarySearchSeekMap(seekTimestampConverter, j, j2, j3, j4, j5, j6);
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}
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public final void setSeekTargetUs(long j) {
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SeekOperationParams seekOperationParams = this.seekOperationParams;
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if (seekOperationParams == null || seekOperationParams.getSeekTimeUs() != j) {
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this.seekOperationParams = createSeekParamsForTargetTimeUs(j);
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}
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}
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public int handlePendingSeek(ExtractorInput extractorInput, PositionHolder positionHolder) throws IOException {
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while (true) {
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SeekOperationParams seekOperationParams = (SeekOperationParams) Assertions.checkStateNotNull(this.seekOperationParams);
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long floorBytePosition = seekOperationParams.getFloorBytePosition();
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long ceilingBytePosition = seekOperationParams.getCeilingBytePosition();
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long nextSearchBytePosition = seekOperationParams.getNextSearchBytePosition();
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if (ceilingBytePosition - floorBytePosition <= this.minimumSearchRange) {
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markSeekOperationFinished(false, floorBytePosition);
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return seekToPosition(extractorInput, floorBytePosition, positionHolder);
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}
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if (!skipInputUntilPosition(extractorInput, nextSearchBytePosition)) {
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return seekToPosition(extractorInput, nextSearchBytePosition, positionHolder);
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}
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extractorInput.resetPeekPosition();
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TimestampSearchResult searchForTimestamp = this.timestampSeeker.searchForTimestamp(extractorInput, seekOperationParams.getTargetTimePosition());
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int i = searchForTimestamp.type;
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if (i == -3) {
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markSeekOperationFinished(false, nextSearchBytePosition);
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return seekToPosition(extractorInput, nextSearchBytePosition, positionHolder);
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}
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if (i == -2) {
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seekOperationParams.updateSeekFloor(searchForTimestamp.timestampToUpdate, searchForTimestamp.bytePositionToUpdate);
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} else {
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if (i != -1) {
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if (i != 0) {
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throw new IllegalStateException("Invalid case");
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}
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skipInputUntilPosition(extractorInput, searchForTimestamp.bytePositionToUpdate);
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markSeekOperationFinished(true, searchForTimestamp.bytePositionToUpdate);
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return seekToPosition(extractorInput, searchForTimestamp.bytePositionToUpdate, positionHolder);
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}
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seekOperationParams.updateSeekCeiling(searchForTimestamp.timestampToUpdate, searchForTimestamp.bytePositionToUpdate);
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}
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}
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}
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protected SeekOperationParams createSeekParamsForTargetTimeUs(long j) {
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return new SeekOperationParams(j, this.seekMap.timeUsToTargetTime(j), this.seekMap.floorTimePosition, this.seekMap.ceilingTimePosition, this.seekMap.floorBytePosition, this.seekMap.ceilingBytePosition, this.seekMap.approxBytesPerFrame);
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}
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protected final void markSeekOperationFinished(boolean z, long j) {
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this.seekOperationParams = null;
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this.timestampSeeker.onSeekFinished();
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onSeekOperationFinished(z, j);
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}
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protected final boolean skipInputUntilPosition(ExtractorInput extractorInput, long j) throws IOException {
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long position = j - extractorInput.getPosition();
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if (position < 0 || position > MAX_SKIP_BYTES) {
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return false;
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}
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extractorInput.skipFully((int) position);
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return true;
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}
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protected final int seekToPosition(ExtractorInput extractorInput, long j, PositionHolder positionHolder) {
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if (j == extractorInput.getPosition()) {
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return 0;
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}
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positionHolder.position = j;
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return 1;
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}
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/* JADX INFO: Access modifiers changed from: protected */
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/* loaded from: classes2.dex */
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public static class SeekOperationParams {
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private final long approxBytesPerFrame;
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private long ceilingBytePosition;
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private long ceilingTimePosition;
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private long floorBytePosition;
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private long floorTimePosition;
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private long nextSearchBytePosition;
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private final long seekTimeUs;
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private final long targetTimePosition;
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/* JADX INFO: Access modifiers changed from: private */
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public long getCeilingBytePosition() {
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return this.ceilingBytePosition;
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}
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/* JADX INFO: Access modifiers changed from: private */
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public long getFloorBytePosition() {
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return this.floorBytePosition;
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}
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/* JADX INFO: Access modifiers changed from: private */
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public long getNextSearchBytePosition() {
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return this.nextSearchBytePosition;
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}
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/* JADX INFO: Access modifiers changed from: private */
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public long getSeekTimeUs() {
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return this.seekTimeUs;
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}
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/* JADX INFO: Access modifiers changed from: private */
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public long getTargetTimePosition() {
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return this.targetTimePosition;
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}
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protected static long calculateNextSearchBytePosition(long j, long j2, long j3, long j4, long j5, long j6) {
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if (j4 + 1 >= j5 || j2 + 1 >= j3) {
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return j4;
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}
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long j7 = ((float) (j - j2)) * (((float) (j5 - j4)) / ((float) (j3 - j2)));
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return Util.constrainValue(((j7 + j4) - j6) - (j7 / 20), j4, j5 - 1);
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}
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protected SeekOperationParams(long j, long j2, long j3, long j4, long j5, long j6, long j7) {
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this.seekTimeUs = j;
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this.targetTimePosition = j2;
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this.floorTimePosition = j3;
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this.ceilingTimePosition = j4;
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this.floorBytePosition = j5;
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this.ceilingBytePosition = j6;
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this.approxBytesPerFrame = j7;
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this.nextSearchBytePosition = calculateNextSearchBytePosition(j2, j3, j4, j5, j6, j7);
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}
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/* JADX INFO: Access modifiers changed from: private */
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public void updateSeekFloor(long j, long j2) {
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this.floorTimePosition = j;
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this.floorBytePosition = j2;
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updateNextSearchBytePosition();
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}
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/* JADX INFO: Access modifiers changed from: private */
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public void updateSeekCeiling(long j, long j2) {
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this.ceilingTimePosition = j;
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this.ceilingBytePosition = j2;
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updateNextSearchBytePosition();
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}
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private void updateNextSearchBytePosition() {
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this.nextSearchBytePosition = calculateNextSearchBytePosition(this.targetTimePosition, this.floorTimePosition, this.ceilingTimePosition, this.floorBytePosition, this.ceilingBytePosition, this.approxBytesPerFrame);
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}
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}
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/* loaded from: classes2.dex */
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public static final class TimestampSearchResult {
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public static final TimestampSearchResult NO_TIMESTAMP_IN_RANGE_RESULT = new TimestampSearchResult(-3, -9223372036854775807L, -1);
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public static final int TYPE_NO_TIMESTAMP = -3;
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public static final int TYPE_POSITION_OVERESTIMATED = -1;
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public static final int TYPE_POSITION_UNDERESTIMATED = -2;
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public static final int TYPE_TARGET_TIMESTAMP_FOUND = 0;
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private final long bytePositionToUpdate;
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private final long timestampToUpdate;
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private final int type;
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private TimestampSearchResult(int i, long j, long j2) {
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this.type = i;
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this.timestampToUpdate = j;
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this.bytePositionToUpdate = j2;
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}
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public static TimestampSearchResult overestimatedResult(long j, long j2) {
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return new TimestampSearchResult(-1, j, j2);
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}
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public static TimestampSearchResult underestimatedResult(long j, long j2) {
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return new TimestampSearchResult(-2, j, j2);
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}
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public static TimestampSearchResult targetFoundResult(long j) {
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return new TimestampSearchResult(0, -9223372036854775807L, j);
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}
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}
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/* loaded from: classes2.dex */
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public static class BinarySearchSeekMap implements SeekMap {
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private final long approxBytesPerFrame;
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private final long ceilingBytePosition;
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private final long ceilingTimePosition;
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private final long durationUs;
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private final long floorBytePosition;
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private final long floorTimePosition;
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private final SeekTimestampConverter seekTimestampConverter;
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@Override // androidx.media3.extractor.SeekMap
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public long getDurationUs() {
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return this.durationUs;
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}
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@Override // androidx.media3.extractor.SeekMap
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public boolean isSeekable() {
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return true;
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}
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public BinarySearchSeekMap(SeekTimestampConverter seekTimestampConverter, long j, long j2, long j3, long j4, long j5, long j6) {
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this.seekTimestampConverter = seekTimestampConverter;
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this.durationUs = j;
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this.floorTimePosition = j2;
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this.ceilingTimePosition = j3;
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this.floorBytePosition = j4;
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this.ceilingBytePosition = j5;
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this.approxBytesPerFrame = j6;
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}
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@Override // androidx.media3.extractor.SeekMap
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public SeekMap.SeekPoints getSeekPoints(long j) {
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return new SeekMap.SeekPoints(new SeekPoint(j, SeekOperationParams.calculateNextSearchBytePosition(this.seekTimestampConverter.timeUsToTargetTime(j), this.floorTimePosition, this.ceilingTimePosition, this.floorBytePosition, this.ceilingBytePosition, this.approxBytesPerFrame)));
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}
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public long timeUsToTargetTime(long j) {
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return this.seekTimestampConverter.timeUsToTargetTime(j);
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}
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}
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}
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