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64 lines
3.6 KiB
Java
64 lines
3.6 KiB
Java
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package androidx.media3.extractor.flac;
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import androidx.media3.extractor.BinarySearchSeeker;
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import androidx.media3.extractor.ExtractorInput;
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import androidx.media3.extractor.FlacFrameReader;
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import androidx.media3.extractor.FlacStreamMetadata;
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import java.io.IOException;
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import java.util.Objects;
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/* loaded from: classes2.dex */
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final class FlacBinarySearchSeeker extends BinarySearchSeeker {
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/* JADX WARN: 'super' call moved to the top of the method (can break code semantics) */
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public FlacBinarySearchSeeker(final FlacStreamMetadata flacStreamMetadata, int i, long j, long j2) {
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super(new BinarySearchSeeker.SeekTimestampConverter() { // from class: androidx.media3.extractor.flac.FlacBinarySearchSeeker$$ExternalSyntheticLambda0
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@Override // androidx.media3.extractor.BinarySearchSeeker.SeekTimestampConverter
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public final long timeUsToTargetTime(long j3) {
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return FlacStreamMetadata.this.getSampleNumber(j3);
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}
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}, new FlacTimestampSeeker(flacStreamMetadata, i), flacStreamMetadata.getDurationUs(), 0L, flacStreamMetadata.totalSamples, j, j2, flacStreamMetadata.getApproxBytesPerFrame(), Math.max(6, flacStreamMetadata.minFrameSize));
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Objects.requireNonNull(flacStreamMetadata);
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}
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/* loaded from: classes2.dex */
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private static final class FlacTimestampSeeker implements BinarySearchSeeker.TimestampSeeker {
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private final FlacStreamMetadata flacStreamMetadata;
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private final int frameStartMarker;
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private final FlacFrameReader.SampleNumberHolder sampleNumberHolder;
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private FlacTimestampSeeker(FlacStreamMetadata flacStreamMetadata, int i) {
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this.flacStreamMetadata = flacStreamMetadata;
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this.frameStartMarker = i;
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this.sampleNumberHolder = new FlacFrameReader.SampleNumberHolder();
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}
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@Override // androidx.media3.extractor.BinarySearchSeeker.TimestampSeeker
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public BinarySearchSeeker.TimestampSearchResult searchForTimestamp(ExtractorInput extractorInput, long j) throws IOException {
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long position = extractorInput.getPosition();
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long findNextFrame = findNextFrame(extractorInput);
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long peekPosition = extractorInput.getPeekPosition();
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extractorInput.advancePeekPosition(Math.max(6, this.flacStreamMetadata.minFrameSize));
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long findNextFrame2 = findNextFrame(extractorInput);
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long peekPosition2 = extractorInput.getPeekPosition();
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if (findNextFrame <= j && findNextFrame2 > j) {
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return BinarySearchSeeker.TimestampSearchResult.targetFoundResult(peekPosition);
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}
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if (findNextFrame2 <= j) {
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return BinarySearchSeeker.TimestampSearchResult.underestimatedResult(findNextFrame2, peekPosition2);
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}
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return BinarySearchSeeker.TimestampSearchResult.overestimatedResult(findNextFrame, position);
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}
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private long findNextFrame(ExtractorInput extractorInput) throws IOException {
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while (extractorInput.getPeekPosition() < extractorInput.getLength() - 6 && !FlacFrameReader.checkFrameHeaderFromPeek(extractorInput, this.flacStreamMetadata, this.frameStartMarker, this.sampleNumberHolder)) {
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extractorInput.advancePeekPosition(1);
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}
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if (extractorInput.getPeekPosition() >= extractorInput.getLength() - 6) {
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extractorInput.advancePeekPosition((int) (extractorInput.getLength() - extractorInput.getPeekPosition()));
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return this.flacStreamMetadata.totalSamples;
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}
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return this.sampleNumberHolder.sampleNumber;
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}
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}
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}
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