package androidx.media3.extractor.ts;

import androidx.media3.common.C;
import androidx.media3.common.MimeTypes;
import androidx.media3.common.util.ParsableByteArray;
import androidx.media3.common.util.UnstableApi;
import androidx.media3.extractor.Ac3Util;
import androidx.media3.extractor.Extractor;
import androidx.media3.extractor.ExtractorInput;
import androidx.media3.extractor.ExtractorOutput;
import androidx.media3.extractor.ExtractorsFactory;
import androidx.media3.extractor.PositionHolder;
import androidx.media3.extractor.SeekMap;
import androidx.media3.extractor.ts.TsPayloadReader;
import defpackage.o2;
import java.io.IOException;

/* JADX INFO: loaded from: classes.dex */
@UnstableApi
public final class Ac3Extractor implements Extractor {
    private static final int AC3_SYNC_WORD = 2935;
    public static final ExtractorsFactory FACTORY = new o2(0);
    private static final int MAX_SNIFF_BYTES = 8192;
    private static final int MAX_SYNC_FRAME_SIZE = 2786;
    private final Ac3Reader reader = new Ac3Reader(MimeTypes.AUDIO_AC3);
    private final ParsableByteArray sampleData = new ParsableByteArray(MAX_SYNC_FRAME_SIZE);
    private boolean startedPacket;

    /* JADX INFO: Access modifiers changed from: private */
    public static /* synthetic */ Extractor[] lambda$static$0() {
        return new Extractor[]{new Ac3Extractor()};
    }

    @Override // androidx.media3.extractor.Extractor
    public void init(ExtractorOutput extractorOutput) {
        this.reader.createTracks(extractorOutput, new TsPayloadReader.TrackIdGenerator(0, 1));
        extractorOutput.endTracks();
        extractorOutput.seekMap(new SeekMap.Unseekable(C.TIME_UNSET));
    }

    @Override // androidx.media3.extractor.Extractor
    public int read(ExtractorInput extractorInput, PositionHolder positionHolder) throws IOException {
        int i = extractorInput.read(this.sampleData.getData(), 0, MAX_SYNC_FRAME_SIZE);
        if (i == -1) {
            return -1;
        }
        this.sampleData.setPosition(0);
        this.sampleData.setLimit(i);
        if (!this.startedPacket) {
            this.reader.packetStarted(0L, 4);
            this.startedPacket = true;
        }
        this.reader.consume(this.sampleData);
        return 0;
    }

    @Override // androidx.media3.extractor.Extractor
    public void release() {
    }

    @Override // androidx.media3.extractor.Extractor
    public void seek(long j, long j2) {
        this.startedPacket = false;
        this.reader.seek();
    }

    @Override // androidx.media3.extractor.Extractor
    public boolean sniff(ExtractorInput extractorInput) throws IOException {
        ParsableByteArray parsableByteArray = new ParsableByteArray(10);
        int i = 0;
        while (true) {
            extractorInput.peekFully(parsableByteArray.getData(), 0, 10);
            parsableByteArray.setPosition(0);
            if (parsableByteArray.readUnsignedInt24() != 4801587) {
                break;
            }
            parsableByteArray.skipBytes(3);
            int synchSafeInt = parsableByteArray.readSynchSafeInt();
            i += synchSafeInt + 10;
            extractorInput.advancePeekPosition(synchSafeInt);
        }
        extractorInput.resetPeekPosition();
        extractorInput.advancePeekPosition(i);
        int i2 = 0;
        int i3 = i;
        while (true) {
            extractorInput.peekFully(parsableByteArray.getData(), 0, 6);
            parsableByteArray.setPosition(0);
            if (parsableByteArray.readUnsignedShort() != AC3_SYNC_WORD) {
                extractorInput.resetPeekPosition();
                i3++;
                if (i3 - i >= 8192) {
                    return false;
                }
                extractorInput.advancePeekPosition(i3);
                i2 = 0;
            } else {
                i2++;
                if (i2 >= 4) {
                    return true;
                }
                int ac3SyncframeSize = Ac3Util.parseAc3SyncframeSize(parsableByteArray.getData());
                if (ac3SyncframeSize == -1) {
                    return false;
                }
                extractorInput.advancePeekPosition(ac3SyncframeSize - 6);
            }
        }
    }
}