Rabbit-R1/android (non root)/java/sources/androidx/media3/extractor/ts/Id3Reader.java
2024-05-21 17:08:36 -04:00

87 lines
3.6 KiB
Java

package androidx.media3.extractor.ts;
import androidx.media3.common.Format;
import androidx.media3.common.util.Assertions;
import androidx.media3.common.util.Log;
import androidx.media3.common.util.ParsableByteArray;
import androidx.media3.extractor.ExtractorOutput;
import androidx.media3.extractor.TrackOutput;
import androidx.media3.extractor.ts.TsPayloadReader;
/* loaded from: classes2.dex */
public final class Id3Reader implements ElementaryStreamReader {
private static final String TAG = "Id3Reader";
private TrackOutput output;
private int sampleBytesRead;
private int sampleSize;
private boolean writingSample;
private final ParsableByteArray id3Header = new ParsableByteArray(10);
private long sampleTimeUs = -9223372036854775807L;
@Override // androidx.media3.extractor.ts.ElementaryStreamReader
public void packetStarted(long j, int i) {
if ((i & 4) == 0) {
return;
}
this.writingSample = true;
if (j != -9223372036854775807L) {
this.sampleTimeUs = j;
}
this.sampleSize = 0;
this.sampleBytesRead = 0;
}
@Override // androidx.media3.extractor.ts.ElementaryStreamReader
public void seek() {
this.writingSample = false;
this.sampleTimeUs = -9223372036854775807L;
}
@Override // androidx.media3.extractor.ts.ElementaryStreamReader
public void createTracks(ExtractorOutput extractorOutput, TsPayloadReader.TrackIdGenerator trackIdGenerator) {
trackIdGenerator.generateNewId();
TrackOutput track = extractorOutput.track(trackIdGenerator.getTrackId(), 5);
this.output = track;
track.format(new Format.Builder().setId(trackIdGenerator.getFormatId()).setSampleMimeType("application/id3").build());
}
@Override // androidx.media3.extractor.ts.ElementaryStreamReader
public void consume(ParsableByteArray parsableByteArray) {
Assertions.checkStateNotNull(this.output);
if (this.writingSample) {
int bytesLeft = parsableByteArray.bytesLeft();
int i = this.sampleBytesRead;
if (i < 10) {
int min = Math.min(bytesLeft, 10 - i);
System.arraycopy(parsableByteArray.getData(), parsableByteArray.getPosition(), this.id3Header.getData(), this.sampleBytesRead, min);
if (this.sampleBytesRead + min == 10) {
this.id3Header.setPosition(0);
if (73 != this.id3Header.readUnsignedByte() || 68 != this.id3Header.readUnsignedByte() || 51 != this.id3Header.readUnsignedByte()) {
Log.w(TAG, "Discarding invalid ID3 tag");
this.writingSample = false;
return;
} else {
this.id3Header.skipBytes(3);
this.sampleSize = this.id3Header.readSynchSafeInt() + 10;
}
}
}
int min2 = Math.min(bytesLeft, this.sampleSize - this.sampleBytesRead);
this.output.sampleData(parsableByteArray, min2);
this.sampleBytesRead += min2;
}
}
@Override // androidx.media3.extractor.ts.ElementaryStreamReader
public void packetFinished() {
int i;
Assertions.checkStateNotNull(this.output);
if (this.writingSample && (i = this.sampleSize) != 0 && this.sampleBytesRead == i) {
long j = this.sampleTimeUs;
if (j != -9223372036854775807L) {
this.output.sampleMetadata(j, 1, i, 0, null);
}
this.writingSample = false;
}
}
}