Field Detail

• iv

  @Nullable
  public byte[] iv

  The 16 byte initialization vector. If the initialization vector of the content is shorter than 16 bytes, 0 byte padding is appended to extend the vector to the required 16 byte length.

  See Also:

  MediaCodec.CryptoInfo.iv

• key

  @Nullable
  public byte[] key

  The 16 byte key id.

  See Also:

  MediaCodec.CryptoInfo.key

• mode

  @CryptoMode
  public int mode

  The type of encryption that has been applied. Must be one of the C.CryptoMode values.

  See Also:

  MediaCodec.CryptoInfo.mode

• numBytesOfClearData

  @Nullable
  public int[] numBytesOfClearData

  The number of leading unencrypted bytes in each sub-sample. If null, all bytes are treated as encrypted and numBytesOfEncryptedData must be specified.

  See Also:

  MediaCodec.CryptoInfo.numBytesOfClearData

• numBytesOfEncryptedData

  @Nullable
  public int[] numBytesOfEncryptedData

  The number of trailing encrypted bytes in each sub-sample. If null, all bytes are treated as clear and numBytesOfClearData must be specified.

  See Also:

  MediaCodec.CryptoInfo.numBytesOfEncryptedData

• numSubSamples

  public int numSubSamples

  The number of subSamples that make up the buffer's contents.

  See Also:

  MediaCodec.CryptoInfo.numSubSamples

• encryptedBlocks

  public int encryptedBlocks

  See Also:

  MediaCodec.CryptoInfo.Pattern

• clearBlocks

  public int clearBlocks

  See Also:

  MediaCodec.CryptoInfo.Pattern

Constructor Detail

• CryptoInfo

  public CryptoInfo()

Method Detail

• set

  public void set​(int numSubSamples,
                  int[] numBytesOfClearData,
                  int[] numBytesOfEncryptedData,
                  byte[] key,
                  byte[] iv,
                  @CryptoMode
                  int mode,
                  int encryptedBlocks,
                  int clearBlocks)

  See Also:

  MediaCodec.CryptoInfo.set(int, int[], int[], byte[], byte[], int)

• getFrameworkCryptoInfo

  public MediaCodec.CryptoInfo getFrameworkCryptoInfo()

  Returns an equivalent MediaCodec.CryptoInfo instance.

  Successive calls to this method on a single CryptoInfo will return the same instance. Changes to the CryptoInfo will be reflected in the returned object. The return object should not be modified directly.

  Returns:

  The equivalent MediaCodec.CryptoInfo instance.

• increaseClearDataFirstSubSampleBy

  public void increaseClearDataFirstSubSampleBy​(int count)

  Increases the number of clear data for the first sub sample by count.

  If count is 0, this method is a no-op. Otherwise, it adds count to numBytesOfClearData[0].

  If numBytesOfClearData is null (which is permitted), this method will instantiate it to a new int[1].

  Parameters:

  count - The number of bytes to be added to the first subSample of numBytesOfClearData.