/*
* Init JNI fields that will be used to fetch the key and crypt/encrypt
*/
static int
InitJni(vlc_keystore *p_keystore, JNIEnv *p_env)
{
jclass clazz = NULL;
GET_CLASS("java/lang/Object");
GET_ID(GetMethodID, Object.toString, "toString", "()Ljava/lang/String;");
GET_CLASS("java/security/KeyStore");
GET_GLOBAL_CLASS(KeyStore);
GET_ID(GetStaticMethodID, KeyStore.getInstance, "getInstance",
"(Ljava/lang/String;)Ljava/security/KeyStore;");
GET_ID(GetMethodID, KeyStore.load, "load",
"(Ljava/security/KeyStore$LoadStoreParameter;)V");
GET_ID(GetMethodID, KeyStore.getEntry, "getEntry",
"(Ljava/lang/String;Ljava/security/KeyStore$ProtectionParameter;)"
"Ljava/security/KeyStore$Entry;");
GET_CLASS("java/security/KeyStore$SecretKeyEntry");
GET_ID(GetMethodID, KeyStore.SecretKeyEntry.getSecretKey, "getSecretKey",
"()Ljavax/crypto/SecretKey;");
GET_CLASS("javax/crypto/spec/IvParameterSpec");
GET_GLOBAL_CLASS(IvParameterSpec);
GET_ID(GetMethodID, IvParameterSpec.ctor, "<init>", "([B)V");
GET_CLASS("javax/crypto/Cipher");
GET_GLOBAL_CLASS(Cipher);
GET_ID(GetStaticMethodID, Cipher.getInstance, "getInstance",
"(Ljava/lang/String;)Ljavax/crypto/Cipher;");
GET_ID(GetMethodID, Cipher.init, "init",
"(ILjava/security/Key;Ljava/security/spec/AlgorithmParameterSpec;)V");
GET_ID(GetMethodID, Cipher.doFinal, "doFinal", "([B)[B");
GET_ID(GetMethodID, Cipher.getIV, "getIV", "()[B");
GET_CONST_INT(Cipher.ENCRYPT_MODE, "ENCRYPT_MODE");
GET_CONST_INT(Cipher.DECRYPT_MODE, "DECRYPT_MODE");
DEL_LREF(clazz);
jstring VLC_CIPHER = NEW_STR("AES/CBC/PKCS7Padding");
if (CHECK_EXCEPTION())
return VLC_EGENERIC;
fields.VLC_CIPHER = NEW_GREF(VLC_CIPHER);
DEL_LREF(VLC_CIPHER);
return VLC_SUCCESS;
}
/*
* Init JNI fields that will be used by generateKey()
*/
static int
InitJniGenKey(vlc_keystore *p_keystore, JNIEnv *p_env)
{
jclass clazz = NULL;
GET_CLASS("android/security/keystore/KeyProperties");
GET_CONST_INT(KeyProperties.PURPOSE_ENCRYPT, "PURPOSE_ENCRYPT");
GET_CONST_INT(KeyProperties.PURPOSE_DECRYPT, "PURPOSE_DECRYPT");
GET_CONST_OBJ(KeyProperties.BLOCK_MODE_CBC,
"BLOCK_MODE_CBC", "Ljava/lang/String;");
GET_CONST_OBJ(KeyProperties.ENCRYPTION_PADDING_PKCS7,
"ENCRYPTION_PADDING_PKCS7", "Ljava/lang/String;");
GET_CONST_OBJ(KeyProperties.KEY_ALGORITHM_AES,
"KEY_ALGORITHM_AES", "Ljava/lang/String;");
GET_CLASS("android/security/keystore/KeyGenParameterSpec$Builder");
GET_GLOBAL_CLASS(KeyGenParameterSpec.Builder);
GET_ID(GetMethodID, KeyGenParameterSpec.Builder.ctor, "<init>",
"(Ljava/lang/String;I)V");
GET_ID(GetMethodID, KeyGenParameterSpec.Builder.setKeySize, "setKeySize",
"(I)Landroid/security/keystore/KeyGenParameterSpec$Builder;");
GET_ID(GetMethodID, KeyGenParameterSpec.Builder.setBlockModes, "setBlockModes",
"([Ljava/lang/String;)"
"Landroid/security/keystore/KeyGenParameterSpec$Builder;");
GET_ID(GetMethodID, KeyGenParameterSpec.Builder.setEncryptionPaddings,
"setEncryptionPaddings", "([Ljava/lang/String;)"
"Landroid/security/keystore/KeyGenParameterSpec$Builder;");
GET_ID(GetMethodID, KeyGenParameterSpec.Builder.build, "build",
"()Landroid/security/keystore/KeyGenParameterSpec;");
GET_CLASS("javax/crypto/KeyGenerator");
GET_GLOBAL_CLASS(KeyGenerator);
GET_ID(GetStaticMethodID, KeyGenerator.getInstance, "getInstance",
"(Ljava/lang/String;Ljava/lang/String;)Ljavax/crypto/KeyGenerator;");
GET_ID(GetMethodID, KeyGenerator.init, "init",
"(Ljava/security/spec/AlgorithmParameterSpec;)V");
GET_ID(GetMethodID, KeyGenerator.generateKey, "generateKey",
"()Ljavax/crypto/SecretKey;");
DEL_LREF(clazz);
return VLC_SUCCESS;
}
/* init all jni fields.
* Done only one time during the first initialisation */
static bool
InitJNIFields( audio_output_t *p_aout )
{
static vlc_mutex_t lock = VLC_STATIC_MUTEX;
static int i_init_state = -1;
bool ret;
jclass clazz;
jfieldID field;
JNIEnv* env = NULL;
vlc_mutex_lock( &lock );
if( i_init_state != -1 )
goto end;
if (!(env = jni_get_env(THREAD_NAME)))
{
i_init_state = 0;
goto end;
}
#define CHECK_EXCEPTION( what, critical ) do { \
if( (*env)->ExceptionOccurred( env ) ) \
{ \
msg_Err( p_aout, "%s failed", what ); \
(*env)->ExceptionClear( env ); \
if( (critical) ) \
{ \
i_init_state = 0; \
goto end; \
} \
} \
} while( 0 )
#define GET_CLASS( str, critical ) do { \
clazz = (*env)->FindClass( env, (str) ); \
CHECK_EXCEPTION( str, critical ); \
} while( 0 )
#define GET_ID( get, id, str, args, critical ) do { \
jfields.id = (*env)->get( env, clazz, (str), (args) ); \
CHECK_EXCEPTION( #get, critical ); \
} while( 0 )
#define GET_CONST_INT( id, str, critical ) do { \
field = NULL; \
field = (*env)->GetStaticFieldID( env, clazz, (str), "I" ); \
CHECK_EXCEPTION( #id, critical ); \
if( field ) \
{ \
jfields.id = (*env)->GetStaticIntField( env, clazz, field ); \
CHECK_EXCEPTION( #id, critical ); \
} \
} while( 0 )
/* AudioTrack class init */
GET_CLASS( "android/media/AudioTrack", true );
jfields.AudioTrack.clazz = (jclass) (*env)->NewGlobalRef( env, clazz );
CHECK_EXCEPTION( "NewGlobalRef", true );
GET_ID( GetMethodID, AudioTrack.ctor, "<init>", "(IIIIII)V", true );
GET_ID( GetMethodID, AudioTrack.release, "release", "()V", true );
GET_ID( GetMethodID, AudioTrack.getState, "getState", "()I", true );
GET_ID( GetMethodID, AudioTrack.play, "play", "()V", true );
GET_ID( GetMethodID, AudioTrack.stop, "stop", "()V", true );
GET_ID( GetMethodID, AudioTrack.flush, "flush", "()V", true );
GET_ID( GetMethodID, AudioTrack.pause, "pause", "()V", true );
GET_ID( GetMethodID, AudioTrack.writeV21, "write", "(Ljava/nio/ByteBuffer;II)I", false );
if( jfields.AudioTrack.writeV21 )
{
GET_CONST_INT( AudioTrack.WRITE_NON_BLOCKING, "WRITE_NON_BLOCKING", true );
#ifdef AUDIOTRACK_USE_FLOAT
GET_ID( GetMethodID, AudioTrack.writeFloat, "write", "([FIII)I", true );
#endif
} else
GET_ID( GetMethodID, AudioTrack.write, "write", "([BII)I", true );
#ifdef AUDIOTRACK_HW_LATENCY
GET_ID( GetMethodID, AudioTrack.getTimestamp,
"getTimestamp", "(Landroid/media/AudioTimestamp;)Z", false );
#endif
GET_ID( GetMethodID, AudioTrack.getPlaybackHeadPosition,
"getPlaybackHeadPosition", "()I", true );
GET_ID( GetStaticMethodID, AudioTrack.getMinBufferSize, "getMinBufferSize",
"(III)I", true );
#ifdef AUDIOTRACK_NATIVE_SAMPLERATE
GET_ID( GetStaticMethodID, AudioTrack.getNativeOutputSampleRate,
"getNativeOutputSampleRate", "(I)I", true );
#endif
GET_CONST_INT( AudioTrack.STATE_INITIALIZED, "STATE_INITIALIZED", true );
GET_CONST_INT( AudioTrack.MODE_STREAM, "MODE_STREAM", true );
GET_CONST_INT( AudioTrack.ERROR, "ERROR", true );
GET_CONST_INT( AudioTrack.ERROR_BAD_VALUE , "ERROR_BAD_VALUE", true );
GET_CONST_INT( AudioTrack.ERROR_INVALID_OPERATION,
"ERROR_INVALID_OPERATION", true );
/* AudioTimestamp class init (if any) */
if( jfields.AudioTrack.getTimestamp )
{
GET_CLASS( "android/media/AudioTimestamp", true );
jfields.AudioTimestamp.clazz = (jclass) (*env)->NewGlobalRef( env,
clazz );
CHECK_EXCEPTION( "NewGlobalRef", true );
GET_ID( GetMethodID, AudioTimestamp.ctor, "<init>", "()V", true );
GET_ID( GetFieldID, AudioTimestamp.framePosition,
"framePosition", "J", true );
GET_ID( GetFieldID, AudioTimestamp.nanoTime,
"nanoTime", "J", true );
}
#ifdef AUDIOTRACK_HW_LATENCY
/* AudioSystem class init */
GET_CLASS( "android/media/AudioSystem", false );
if( clazz )
{
jfields.AudioSystem.clazz = (jclass) (*env)->NewGlobalRef( env, clazz );
GET_ID( GetStaticMethodID, AudioSystem.getOutputLatency,
"getOutputLatency", "(I)I", false );
}
#endif
/* AudioFormat class init */
GET_CLASS( "android/media/AudioFormat", true );
GET_CONST_INT( AudioFormat.ENCODING_PCM_8BIT, "ENCODING_PCM_8BIT", true );
GET_CONST_INT( AudioFormat.ENCODING_PCM_16BIT, "ENCODING_PCM_16BIT", true );
#ifdef AUDIOTRACK_USE_FLOAT
GET_CONST_INT( AudioFormat.ENCODING_PCM_FLOAT, "ENCODING_PCM_FLOAT",
false );
jfields.AudioFormat.has_ENCODING_PCM_FLOAT = field != NULL &&
jfields.AudioTrack.writeFloat;
#else
jfields.AudioFormat.has_ENCODING_PCM_FLOAT = false;
#endif
GET_CONST_INT( AudioFormat.ENCODING_AC3, "ENCODING_AC3", false );
if( field != NULL )
{
GET_CONST_INT( AudioFormat.ENCODING_E_AC3, "ENCODING_E_AC3", false );
jfields.AudioFormat.has_ENCODING_AC3 = field != NULL;
} else
jfields.AudioFormat.has_ENCODING_AC3 = false;
GET_CONST_INT( AudioFormat.CHANNEL_OUT_MONO, "CHANNEL_OUT_MONO", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_STEREO, "CHANNEL_OUT_STEREO", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_FRONT_LEFT, "CHANNEL_OUT_FRONT_LEFT", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_FRONT_RIGHT, "CHANNEL_OUT_FRONT_RIGHT", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_5POINT1, "CHANNEL_OUT_5POINT1", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_BACK_LEFT, "CHANNEL_OUT_BACK_LEFT", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_BACK_RIGHT, "CHANNEL_OUT_BACK_RIGHT", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_FRONT_CENTER, "CHANNEL_OUT_FRONT_CENTER", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_LOW_FREQUENCY, "CHANNEL_OUT_LOW_FREQUENCY", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_BACK_CENTER, "CHANNEL_OUT_BACK_CENTER", true );
GET_CONST_INT( AudioFormat.CHANNEL_OUT_SIDE_LEFT, "CHANNEL_OUT_SIDE_LEFT", false );
if( field != NULL )
{
GET_CONST_INT( AudioFormat.CHANNEL_OUT_SIDE_RIGHT, "CHANNEL_OUT_SIDE_RIGHT", true );
jfields.AudioFormat.has_CHANNEL_OUT_SIDE = true;
} else
jfields.AudioFormat.has_CHANNEL_OUT_SIDE = false;
/* AudioManager class init */
GET_CLASS( "android/media/AudioManager", true );
GET_CONST_INT( AudioManager.ERROR_DEAD_OBJECT, "ERROR_DEAD_OBJECT", false );
jfields.AudioManager.has_ERROR_DEAD_OBJECT = field != NULL;
GET_CONST_INT( AudioManager.STREAM_MUSIC, "STREAM_MUSIC", true );
#undef CHECK_EXCEPTION
#undef GET_CLASS
#undef GET_ID
#undef GET_CONST_INT
i_init_state = 1;
end:
ret = i_init_state == 1;
if( !ret )
msg_Err( p_aout, "AudioTrack jni init failed" );
vlc_mutex_unlock( &lock );
return ret;
}
