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Fix EventSampleStream's implementation regarding FLAG_REQUIRE_FORMAT

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The current FLAG_REQUIRE_FORMAT documentation states: If an end of
stream buffer would be read were the flag not set, then behavior is
unchanged.

PiperOrigin-RevId: 380781976
This commit is contained in:
aquilescanta 2021-06-22 12:50:37 +01:00 committed by Oliver Woodman
parent b48b618bce
commit ddd6a22561
2 changed files with 12 additions and 8 deletions
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15
library/dash/src/main/java/com/google/android/exoplayer2/source/dash/EventSampleStream.java
View file

@ -100,18 +100,19 @@ import java.io.IOException;
@Override
public int readData(
FormatHolder formatHolder, DecoderInputBuffer buffer, @ReadFlags int readFlags) {
boolean noMoreEventsInStream = currentIndex == eventTimesUs.length;
if (noMoreEventsInStream && !eventStreamAppendable) {
buffer.setFlags(C.BUFFER_FLAG_END_OF_STREAM);
return C.RESULT_BUFFER_READ;
}
if ((readFlags & FLAG_REQUIRE_FORMAT) != 0 || !isFormatSentDownstream) {
formatHolder.format = upstreamFormat;
isFormatSentDownstream = true;
return C.RESULT_FORMAT_READ;
}
if (currentIndex == eventTimesUs.length) {
if (!eventStreamAppendable) {
buffer.setFlags(C.BUFFER_FLAG_END_OF_STREAM);
return C.RESULT_BUFFER_READ;
} else {
return C.RESULT_NOTHING_READ;
}
if (noMoreEventsInStream) {
// More events may be appended later.
return C.RESULT_NOTHING_READ;
}
int sampleIndex = currentIndex++;
byte[] serializedEvent = eventMessageEncoder.encode(eventStream.events[sampleIndex]);

5
library/dash/src/test/java/com/google/android/exoplayer2/source/dash/EventSampleStreamTest.java
View file

@ -67,7 +67,10 @@ public final class EventSampleStreamTest {
public void readDataReturnFormatForFirstRead() {
EventStream eventStream =
new EventStream(SCHEME_ID, VALUE, TIME_SCALE, new long[0], new EventMessage[0]);
EventSampleStream sampleStream = new EventSampleStream(eventStream, FORMAT, false);
// Make the event stream appendable so that the format is read. Otherwise, the format will be
// skipped and the end of input will be read.
EventSampleStream sampleStream =
new EventSampleStream(eventStream, FORMAT, /* eventStreamAppendable= */ true);
int result = readData(sampleStream);
assertThat(result).isEqualTo(C.RESULT_FORMAT_READ);