@Override
public void setRequestProperty(String name, String value) {
Assertions.checkNotNull(name);
Assertions.checkNotNull(value);
synchronized (requestProperties) {
requestProperties.put(name, value);
}
}
@Override
public void clearRequestProperty(String name) {
Assertions.checkNotNull(name);
synchronized (requestProperties) {
requestProperties.remove(name);
}
}
/**
* Returns a position converging to the {@code targetGranule} to which the {@link ExtractorInput}
* has to seek and then be passed for another call until -1 is return. If -1 is returned the input
* is at a position which is before the start of the page before the target page and at which it
* is sensible to just skip pages to the target granule and pre-roll instead of doing another seek
* request.
*
* @param targetGranule the target granule position to seek to.
* @param input the {@link ExtractorInput} to read from.
* @return the position to seek the {@link ExtractorInput} to for a next call or -1 if it's close
* enough to skip to the target page.
* @throws IOException thrown if reading from the input fails.
* @throws InterruptedException thrown if interrupted while reading from the input.
*/
public long getNextSeekPosition(long targetGranule, ExtractorInput input)
throws IOException, InterruptedException {
Assertions.checkState(audioDataLength != C.LENGTH_UNBOUNDED && totalSamples != 0);
OggUtil.populatePageHeader(input, pageHeader, headerArray, false);
long granuleDistance = targetGranule - pageHeader.granulePosition;
if (granuleDistance <= 0 || granuleDistance > MATCH_RANGE) {
// estimated position too high or too low
long offset = (pageHeader.bodySize + pageHeader.headerSize) * (granuleDistance <= 0 ? 2 : 1);
return input.getPosition() - offset + (granuleDistance * audioDataLength / totalSamples);
}
// position accepted (below target granule and within MATCH_RANGE)
input.resetPeekPosition();
return -1;
}
/**
* @param userAgent The User-Agent string that should be used.
* @param contentTypePredicate An optional {@link Predicate}. If a content type is rejected by the
* predicate then a {@link HttpDataSource.InvalidContentTypeException} is thrown from {@link
* #open(DataSpec)}.
* @param listener An optional listener.
* @param connectTimeoutMillis The connection timeout, in milliseconds. A timeout of zero is
* interpreted as an infinite timeout. Pass {@link #DEFAULT_CONNECT_TIMEOUT_MILLIS} to use the
* default value.
* @param readTimeoutMillis The read timeout, in milliseconds. A timeout of zero is interpreted as
* an infinite timeout. Pass {@link #DEFAULT_READ_TIMEOUT_MILLIS} to use the default value.
* @param allowCrossProtocolRedirects Whether cross-protocol redirects (i.e. redirects from HTTP
* to HTTPS and vice versa) are enabled.
*/
public DefaultHttpDataSource(
String userAgent,
Predicate<String> contentTypePredicate,
TransferListener listener,
int connectTimeoutMillis,
int readTimeoutMillis,
boolean allowCrossProtocolRedirects) {
this.userAgent = Assertions.checkNotEmpty(userAgent);
this.contentTypePredicate = contentTypePredicate;
this.listener = listener;
this.requestProperties = new HashMap<>();
this.connectTimeoutMillis = connectTimeoutMillis;
this.readTimeoutMillis = readTimeoutMillis;
this.allowCrossProtocolRedirects = allowCrossProtocolRedirects;
}
@Override
public int readData(
int track, long positionUs, MediaFormatHolder formatHolder, SampleHolder sampleHolder) {
if (state == STATE_END_OF_STREAM) {
return END_OF_STREAM;
} else if (state == STATE_SEND_FORMAT) {
formatHolder.format = format;
state = STATE_SEND_SAMPLE;
return FORMAT_READ;
}
Assertions.checkState(state == STATE_SEND_SAMPLE);
if (!loadingFinished) {
return NOTHING_READ;
} else {
sampleHolder.timeUs = 0;
sampleHolder.size = sampleSize;
sampleHolder.flags = C.SAMPLE_FLAG_SYNC;
sampleHolder.ensureSpaceForWrite(sampleHolder.size);
sampleHolder.data.put(sampleData, 0, sampleSize);
state = STATE_END_OF_STREAM;
return SAMPLE_READ;
}
}
/**
* Setup the seeker with the data it needs to to an educated guess of seeking positions.
*
* @param audioDataLength the length of the audio data (total bytes - header bytes).
* @param totalSamples the total number of samples of audio data.
*/
public void setup(long audioDataLength, long totalSamples) {
Assertions.checkArgument(audioDataLength > 0 && totalSamples > 0);
this.audioDataLength = audioDataLength;
this.totalSamples = totalSamples;
}
private static int getManifestTrackKey(int elementIndex, int trackIndex) {
Assertions.checkState(elementIndex <= 65536 && trackIndex <= 65536);
return (elementIndex << 16) | trackIndex;
}