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Additional IV fix. Trim sign bit from BigInteger.toByteArray() output, if it creates a 17th byte for it. #145

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This commit is contained in:
Andrey Udovenko 2014-11-18 19:36:44 -05:00
parent 15d3df6a58
commit 3cfe894b93
1 changed files with 3 additions and 2 deletions
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5
library/src/main/java/com/google/android/exoplayer/hls/HlsChunkSource.java
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@ -395,8 +395,9 @@ public class HlsChunkSource {
byte[] ivData = new BigInteger(iv, 16).toByteArray();
byte[] ivDataWithPadding = new byte[16];
System.arraycopy(ivData, 0, ivDataWithPadding, ivDataWithPadding.length - ivData.length,
ivData.length);
int offset = ivData.length > 16 ? ivData.length - 16 : 0;
System.arraycopy(ivData, offset, ivDataWithPadding, ivDataWithPadding.length - ivData.length
+ offset, ivData.length - offset);
encryptedDataSource = new Aes128DataSource(secretKey, ivDataWithPadding, upstreamDataSource);
}