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Add pattern information to ExoPlayer's CryptoInfo

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-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=152708351
This commit is contained in:
aquilescanta 2017-04-10 11:06:06 -07:00 committed by Oliver Woodman
parent 0aee235e0a
commit 2a4df60b01
1 changed files with 49 additions and 2 deletions
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51
library/core/src/main/java/com/google/android/exoplayer2/decoder/CryptoInfo.java
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@ -49,11 +49,21 @@ public final class CryptoInfo {
* @see android.media.MediaCodec.CryptoInfo#numSubSamples * @see android.media.MediaCodec.CryptoInfo#numSubSamples
*/ */
public int numSubSamples; public int numSubSamples;
/**
* @see android.media.MediaCodec.CryptoInfo.Pattern
*/
public int patternBlocksToEncrypt;
/**
* @see android.media.MediaCodec.CryptoInfo.Pattern
*/
public int patternBlocksToSkip;
private final android.media.MediaCodec.CryptoInfo frameworkCryptoInfo; private final android.media.MediaCodec.CryptoInfo frameworkCryptoInfo;
private final PatternHolderV24 patternHolder;
public CryptoInfo() { public CryptoInfo() {
frameworkCryptoInfo = Util.SDK_INT >= 16 ? newFrameworkCryptoInfoV16() : null; frameworkCryptoInfo = Util.SDK_INT >= 16 ? newFrameworkCryptoInfoV16() : null;
patternHolder = Util.SDK_INT >= 24 ? new PatternHolderV24(frameworkCryptoInfo) : null;
} }
/** /**
@ -67,11 +77,21 @@ public final class CryptoInfo {
this.key = key; this.key = key;
this.iv = iv; this.iv = iv;
this.mode = mode; this.mode = mode;
patternBlocksToEncrypt = 0;
patternBlocksToSkip = 0;
if (Util.SDK_INT >= 16) { if (Util.SDK_INT >= 16) {
updateFrameworkCryptoInfoV16(); updateFrameworkCryptoInfoV16();
} }
} }
public void setPattern(int patternBlocksToEncrypt, int patternBlocksToSkip) {
this.patternBlocksToEncrypt = patternBlocksToEncrypt;
this.patternBlocksToSkip = patternBlocksToSkip;
if (Util.SDK_INT >= 24) {
patternHolder.set(patternBlocksToEncrypt, patternBlocksToSkip);
}
}
/** /**
* Returns an equivalent {@link android.media.MediaCodec.CryptoInfo} instance. * Returns an equivalent {@link android.media.MediaCodec.CryptoInfo} instance.
* <p> * <p>
@ -93,8 +113,35 @@ public final class CryptoInfo {
@TargetApi(16) @TargetApi(16)
private void updateFrameworkCryptoInfoV16() { private void updateFrameworkCryptoInfoV16() {
frameworkCryptoInfo.set(numSubSamples, numBytesOfClearData, numBytesOfEncryptedData, key, iv, // Update fields directly because the framework's CryptoInfo.set performs an unnecessary object
mode); // allocation on Android N.
frameworkCryptoInfo.numSubSamples = numSubSamples;
frameworkCryptoInfo.numBytesOfClearData = numBytesOfClearData;
frameworkCryptoInfo.numBytesOfEncryptedData = numBytesOfEncryptedData;
frameworkCryptoInfo.key = key;
frameworkCryptoInfo.iv = iv;
frameworkCryptoInfo.mode = mode;
if (Util.SDK_INT >= 24) {
patternHolder.set(patternBlocksToEncrypt, patternBlocksToSkip);
}
}
@TargetApi(24)
private static final class PatternHolderV24 {
private final android.media.MediaCodec.CryptoInfo frameworkCryptoInfo;
private final android.media.MediaCodec.CryptoInfo.Pattern pattern;
private PatternHolderV24(android.media.MediaCodec.CryptoInfo frameworkCryptoInfo) {
this.frameworkCryptoInfo = frameworkCryptoInfo;
pattern = new android.media.MediaCodec.CryptoInfo.Pattern(0, 0);
}
private void set(int blocksToEncrypt, int blocksToSkip) {
pattern.set(blocksToEncrypt, blocksToSkip);
frameworkCryptoInfo.setPattern(pattern);
}
} }
} }