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Tweak PassthroughSectionPayloadReader to allow timestamp to change

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PiperOrigin-RevId: 305674374
This commit is contained in:
ibaker 2020-04-09 14:40:49 +01:00 committed by Ian Baker
parent d9a8622bd5
commit dfd5c512f6
1 changed files with 11 additions and 15 deletions
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26
library/extractor/src/main/java/com/google/android/exoplayer2/extractor/ts/PassthroughSectionPayloadReader.java
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@ -33,10 +33,9 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
*/
public final class PassthroughSectionPayloadReader implements SectionPayloadReader {
private final String mimeType;
private Format format;
private @MonotonicNonNull TimestampAdjuster timestampAdjuster;
private @MonotonicNonNull TrackOutput output;
private boolean formatOutputWithTimestampAdjustment;
/**
* Create a new PassthroughSectionPayloadReader.
@ -44,7 +43,7 @@ public final class PassthroughSectionPayloadReader implements SectionPayloadRead
* @param mimeType The MIME type set as {@link Format#sampleMimeType} on the created output track.
*/
public PassthroughSectionPayloadReader(String mimeType) {
this.mimeType = mimeType;
this.format = new Format.Builder().setSampleMimeType(mimeType).build();
}
@Override
@ -57,23 +56,20 @@ public final class PassthroughSectionPayloadReader implements SectionPayloadRead
output = extractorOutput.track(idGenerator.getTrackId(), C.TRACK_TYPE_METADATA);
// Eagerly output an incomplete format (missing timestamp offset) to ensure source preparation
// is not blocked waiting for potentially sparse metadata.
output.format(new Format.Builder().setSampleMimeType(mimeType).build());
output.format(format);
}
@Override
public void consume(ParsableByteArray sectionData) {
assertInitialized();
if (!formatOutputWithTimestampAdjustment) {
if (timestampAdjuster.getTimestampOffsetUs() == C.TIME_UNSET) {
// There is not enough information to initialize the timestamp adjuster.
return;
}
output.format(
new Format.Builder()
.setSampleMimeType(mimeType)
.setSubsampleOffsetUs(timestampAdjuster.getTimestampOffsetUs())
.build());
formatOutputWithTimestampAdjustment = true;
long subsampleOffsetUs = timestampAdjuster.getTimestampOffsetUs();
if (subsampleOffsetUs == C.TIME_UNSET) {
// Don't output samples without a known subsample offset.
return;
}
if (subsampleOffsetUs != format.subsampleOffsetUs) {
format = format.buildUpon().setSubsampleOffsetUs(subsampleOffsetUs).build();
output.format(format);
}
int sampleSize = sectionData.bytesLeft();
output.sampleData(sectionData, sampleSize);