@Override
protected synchronized boolean updateDecodeJob(EncodedImage encodedImage, boolean isLast) {
boolean ret = super.updateDecodeJob(encodedImage, isLast);
if (!isLast && EncodedImage.isValid(encodedImage)) {
if (!mProgressiveJpegParser.parseMoreData(encodedImage)) {
return false;
}
int scanNum = mProgressiveJpegParser.getBestScanNumber();
if (scanNum <= mLastScheduledScanNumber
|| scanNum
< mProgressiveJpegConfig.getNextScanNumberToDecode(mLastScheduledScanNumber)) {
return false;
}
mLastScheduledScanNumber = scanNum;
}
return ret;
}
@Override
protected synchronized boolean updateDecodeJob(
CloseableReference<PooledByteBuffer> imageBytesRef, boolean isLast) {
boolean ret = super.updateDecodeJob(imageBytesRef, isLast);
if (!isLast && CloseableReference.isValid(imageBytesRef)) {
if (!mProgressiveJpegParser.parseMoreData(imageBytesRef)) {
return false;
}
int scanNum = mProgressiveJpegParser.getBestScanNumber();
if (scanNum <= mLastScheduledScanNumber
|| scanNum
< mProgressiveJpegConfig.getNextScanNumberToDecode(mLastScheduledScanNumber)) {
return false;
}
mLastScheduledScanNumber = scanNum;
}
return ret;
}
@Override
protected QualityInfo getQualityInfo() {
return mProgressiveJpegConfig.getQualityInfo(mProgressiveJpegParser.getBestScanNumber());
}
@Override
protected int getIntermediateImageEndOffset(EncodedImage encodedImage) {
return mProgressiveJpegParser.getBestScanEndOffset();
}
@Override
protected QualityInfo getQualityInfo(CloseableReference<PooledByteBuffer> imageBytesRef) {
return mProgressiveJpegConfig.getQualityInfo(mProgressiveJpegParser.getBestScanNumber());
}
@Override
protected int getIntermediateImageEndOffset(
CloseableReference<PooledByteBuffer> imageBytesRef) {
return mProgressiveJpegParser.getBestScanEndOffset();
}
@Override
@Nullable
protected ImageFormat getImageFormat(CloseableReference<PooledByteBuffer> imageBytesRef) {
return mProgressiveJpegParser.isJpeg() ? ImageFormat.JPEG : ImageFormat.UNKNOWN;
}