import android.media.MediaCryptoException; //导入依赖的package包/类
@Before
public void setUp() throws MediaDrmException, MediaCryptoException {
    frameworkMediaCrypto = FrameworkMediaCryptoFixture.aFrameworkMediaCrypto().build();
    given(mediaDrm.openSession()).willReturn(SESSION_ID.asBytes());

    localDrmSessionManager = new LocalDrmSessionManager(
            KEY_SET_ID_TO_RESTORE,
            mediaDrm,
            DRM_SCHEME,
            handler,
            eventListener
    );
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
@Test
public void givenValidMediaDrm_whenAcquiringSession_thenRestoresKeys() throws MediaCryptoException {
    given(mediaDrm.createMediaCrypto(SESSION_ID.asBytes())).willReturn(frameworkMediaCrypto);

    localDrmSessionManager.acquireSession(IGNORED_LOOPER, IGNORED_DRM_DATA);

    verify(mediaDrm).restoreKeys(SESSION_ID.asBytes(), KEY_SET_ID_TO_RESTORE.asBytes());
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
@Test
public void givenValidMediaDrm_whenAcquiringSession_thenReturnsLocalDrmSession() throws MediaCryptoException {
    given(mediaDrm.createMediaCrypto(SESSION_ID.asBytes())).willReturn(frameworkMediaCrypto);

    DrmSession<FrameworkMediaCrypto> drmSession = localDrmSessionManager.acquireSession(IGNORED_LOOPER, IGNORED_DRM_DATA);

    LocalDrmSession localDrmSession = new LocalDrmSession(frameworkMediaCrypto, KEY_SET_ID_TO_RESTORE, SESSION_ID);
    assertThat(drmSession).isEqualTo(localDrmSession);
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
@Override
public FrameworkMediaCrypto createMediaCrypto(byte[] initData) throws MediaCryptoException {
  // Work around a bug prior to Lollipop where L1 Widevine forced into L3 mode would still
  // indicate that it required secure video decoders [Internal ref: b/11428937].
  boolean forceAllowInsecureDecoderComponents = Util.SDK_INT < 21
      && C.WIDEVINE_UUID.equals(uuid) && "L3".equals(getPropertyString("securityLevel"));
  return new FrameworkMediaCrypto(new MediaCrypto(uuid, initData),
      forceAllowInsecureDecoderComponents);
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
@Override
public FrameworkMediaCrypto createMediaCrypto(UUID uuid, byte[] initData)
    throws MediaCryptoException {
  // Work around a bug prior to Lollipop where L1 Widevine forced into L3 mode would still
  // indicate that it required secure video decoders [Internal ref: b/11428937].
  boolean forceAllowInsecureDecoderComponents = Util.SDK_INT < 21
      && C.WIDEVINE_UUID.equals(uuid) && "L3".equals(getPropertyString("securityLevel"));
  return new FrameworkMediaCrypto(new MediaCrypto(uuid, initData),
      forceAllowInsecureDecoderComponents);
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
@Override
public FrameworkMediaCrypto createMediaCrypto(UUID uuid, byte[] initData)
    throws MediaCryptoException {
  return new FrameworkMediaCrypto(new MediaCrypto(uuid, initData));
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
private FrameworkMediaCryptoFixture() throws MediaCryptoException {
    // Static factory method.
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
public static FrameworkMediaCryptoFixture aFrameworkMediaCrypto() throws MediaCryptoException {
    return new FrameworkMediaCryptoFixture();
}
 

import android.media.MediaCryptoException; //导入依赖的package包/类
static MediaDrmSession openSessionWithKeys(MediaDrm mediaDrm, OfflineKeySetStorage storage, byte[] initData) throws MediaDrmException, MediaCryptoException, FileNotFoundException {

        byte[] keySetId = storage.loadKeySetId(initData);

        MediaDrmSession session = MediaDrmSession.open(mediaDrm);
        session.restoreKeys(keySetId);
        
        Map<String, String> keyStatus = session.queryKeyStatus();
        Log.d(TAG, "keyStatus: " + keyStatus);
        
        return session;
    }
 

import android.media.MediaCryptoException; //导入依赖的package包/类
/**
 * @see android.media.MediaCrypto#MediaCrypto(UUID, byte[])
 *
 * @param uuid The UUID of the crypto scheme.
 * @param initData Opaque initialization data specific to the crypto scheme.
 * @return An object extends {@link ExoMediaCrypto}, using opaque crypto scheme specific data.
 * @throws MediaCryptoException
 */
T createMediaCrypto(UUID uuid, byte[] initData) throws MediaCryptoException;
 

import android.media.MediaCryptoException; //导入依赖的package包/类
/**
 * @see android.media.MediaCrypto#MediaCrypto(UUID, byte[])
 *
 * @param initData Opaque initialization data specific to the crypto scheme.
 * @return An object extends {@link ExoMediaCrypto}, using opaque crypto scheme specific data.
 * @throws MediaCryptoException If the instance can't be created.
 */
T createMediaCrypto(byte[] initData) throws MediaCryptoException;