| /* |
| * Copyright 2011, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| // #define LOG_NDEBUG 0 |
| #define LOG_TAG "AndroidMediaUtils" |
| |
| #include <utils/Log.h> |
| #include "android_media_Utils.h" |
| |
| #include <media/stagefright/foundation/ADebug.h> |
| #include <media/stagefright/foundation/ABuffer.h> |
| #include <media/stagefright/foundation/AMessage.h> |
| |
| #include <nativehelper/ScopedLocalRef.h> |
| |
| namespace android { |
| |
| bool ConvertKeyValueArraysToKeyedVector( |
| JNIEnv *env, jobjectArray keys, jobjectArray values, |
| KeyedVector<String8, String8>* keyedVector) { |
| |
| int nKeyValuePairs = 0; |
| bool failed = false; |
| if (keys != NULL && values != NULL) { |
| nKeyValuePairs = env->GetArrayLength(keys); |
| failed = (nKeyValuePairs != env->GetArrayLength(values)); |
| } |
| |
| if (!failed) { |
| failed = ((keys != NULL && values == NULL) || |
| (keys == NULL && values != NULL)); |
| } |
| |
| if (failed) { |
| ALOGE("keys and values arrays have different length"); |
| jniThrowException(env, "java/lang/IllegalArgumentException", NULL); |
| return false; |
| } |
| |
| for (int i = 0; i < nKeyValuePairs; ++i) { |
| // No need to check on the ArrayIndexOutOfBoundsException, since |
| // it won't happen here. |
| jstring key = (jstring) env->GetObjectArrayElement(keys, i); |
| jstring value = (jstring) env->GetObjectArrayElement(values, i); |
| |
| const char* keyStr = env->GetStringUTFChars(key, NULL); |
| if (!keyStr) { // OutOfMemoryError |
| return false; |
| } |
| |
| const char* valueStr = env->GetStringUTFChars(value, NULL); |
| if (!valueStr) { // OutOfMemoryError |
| env->ReleaseStringUTFChars(key, keyStr); |
| return false; |
| } |
| |
| keyedVector->add(String8(keyStr), String8(valueStr)); |
| |
| env->ReleaseStringUTFChars(key, keyStr); |
| env->ReleaseStringUTFChars(value, valueStr); |
| env->DeleteLocalRef(key); |
| env->DeleteLocalRef(value); |
| } |
| return true; |
| } |
| |
| static jobject makeIntegerObject(JNIEnv *env, int32_t value) { |
| ScopedLocalRef<jclass> clazz(env, env->FindClass("java/lang/Integer")); |
| CHECK(clazz.get() != NULL); |
| |
| jmethodID integerConstructID = |
| env->GetMethodID(clazz.get(), "<init>", "(I)V"); |
| CHECK(integerConstructID != NULL); |
| |
| return env->NewObject(clazz.get(), integerConstructID, value); |
| } |
| |
| static jobject makeLongObject(JNIEnv *env, int64_t value) { |
| ScopedLocalRef<jclass> clazz(env, env->FindClass("java/lang/Long")); |
| CHECK(clazz.get() != NULL); |
| |
| jmethodID longConstructID = env->GetMethodID(clazz.get(), "<init>", "(J)V"); |
| CHECK(longConstructID != NULL); |
| |
| return env->NewObject(clazz.get(), longConstructID, value); |
| } |
| |
| static jobject makeFloatObject(JNIEnv *env, float value) { |
| ScopedLocalRef<jclass> clazz(env, env->FindClass("java/lang/Float")); |
| CHECK(clazz.get() != NULL); |
| |
| jmethodID floatConstructID = |
| env->GetMethodID(clazz.get(), "<init>", "(F)V"); |
| CHECK(floatConstructID != NULL); |
| |
| return env->NewObject(clazz.get(), floatConstructID, value); |
| } |
| |
| static jobject makeByteBufferObject( |
| JNIEnv *env, const void *data, size_t size) { |
| jbyteArray byteArrayObj = env->NewByteArray(size); |
| env->SetByteArrayRegion(byteArrayObj, 0, size, (const jbyte *)data); |
| |
| ScopedLocalRef<jclass> clazz(env, env->FindClass("java/nio/ByteBuffer")); |
| CHECK(clazz.get() != NULL); |
| |
| jmethodID byteBufWrapID = |
| env->GetStaticMethodID( |
| clazz.get(), "wrap", "([B)Ljava/nio/ByteBuffer;"); |
| CHECK(byteBufWrapID != NULL); |
| |
| jobject byteBufObj = env->CallStaticObjectMethod( |
| clazz.get(), byteBufWrapID, byteArrayObj); |
| |
| env->DeleteLocalRef(byteArrayObj); byteArrayObj = NULL; |
| |
| return byteBufObj; |
| } |
| |
| static void SetMapInt32( |
| JNIEnv *env, jobject hashMapObj, jmethodID hashMapPutID, |
| const char *key, int32_t value) { |
| jstring keyObj = env->NewStringUTF(key); |
| jobject valueObj = makeIntegerObject(env, value); |
| |
| env->CallObjectMethod(hashMapObj, hashMapPutID, keyObj, valueObj); |
| |
| env->DeleteLocalRef(valueObj); valueObj = NULL; |
| env->DeleteLocalRef(keyObj); keyObj = NULL; |
| } |
| |
| status_t ConvertMessageToMap( |
| JNIEnv *env, const sp<AMessage> &msg, jobject *map) { |
| ScopedLocalRef<jclass> hashMapClazz( |
| env, env->FindClass("java/util/HashMap")); |
| |
| if (hashMapClazz.get() == NULL) { |
| return -EINVAL; |
| } |
| |
| jmethodID hashMapConstructID = |
| env->GetMethodID(hashMapClazz.get(), "<init>", "()V"); |
| |
| if (hashMapConstructID == NULL) { |
| return -EINVAL; |
| } |
| |
| jmethodID hashMapPutID = |
| env->GetMethodID( |
| hashMapClazz.get(), |
| "put", |
| "(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;"); |
| |
| if (hashMapPutID == NULL) { |
| return -EINVAL; |
| } |
| |
| jobject hashMap = env->NewObject(hashMapClazz.get(), hashMapConstructID); |
| |
| for (size_t i = 0; i < msg->countEntries(); ++i) { |
| AMessage::Type valueType; |
| const char *key = msg->getEntryNameAt(i, &valueType); |
| |
| jobject valueObj = NULL; |
| |
| switch (valueType) { |
| case AMessage::kTypeInt32: |
| { |
| int32_t val; |
| CHECK(msg->findInt32(key, &val)); |
| |
| valueObj = makeIntegerObject(env, val); |
| break; |
| } |
| |
| case AMessage::kTypeInt64: |
| { |
| int64_t val; |
| CHECK(msg->findInt64(key, &val)); |
| |
| valueObj = makeLongObject(env, val); |
| break; |
| } |
| |
| case AMessage::kTypeFloat: |
| { |
| float val; |
| CHECK(msg->findFloat(key, &val)); |
| |
| valueObj = makeFloatObject(env, val); |
| break; |
| } |
| |
| case AMessage::kTypeString: |
| { |
| AString val; |
| CHECK(msg->findString(key, &val)); |
| |
| valueObj = env->NewStringUTF(val.c_str()); |
| break; |
| } |
| |
| case AMessage::kTypeBuffer: |
| { |
| sp<ABuffer> buffer; |
| CHECK(msg->findBuffer(key, &buffer)); |
| |
| valueObj = makeByteBufferObject( |
| env, buffer->data(), buffer->size()); |
| break; |
| } |
| |
| case AMessage::kTypeRect: |
| { |
| int32_t left, top, right, bottom; |
| CHECK(msg->findRect(key, &left, &top, &right, &bottom)); |
| |
| SetMapInt32( |
| env, |
| hashMap, |
| hashMapPutID, |
| AStringPrintf("%s-left", key).c_str(), |
| left); |
| |
| SetMapInt32( |
| env, |
| hashMap, |
| hashMapPutID, |
| AStringPrintf("%s-top", key).c_str(), |
| top); |
| |
| SetMapInt32( |
| env, |
| hashMap, |
| hashMapPutID, |
| AStringPrintf("%s-right", key).c_str(), |
| right); |
| |
| SetMapInt32( |
| env, |
| hashMap, |
| hashMapPutID, |
| AStringPrintf("%s-bottom", key).c_str(), |
| bottom); |
| break; |
| } |
| |
| default: |
| break; |
| } |
| |
| if (valueObj != NULL) { |
| jstring keyObj = env->NewStringUTF(key); |
| |
| env->CallObjectMethod(hashMap, hashMapPutID, keyObj, valueObj); |
| |
| env->DeleteLocalRef(keyObj); keyObj = NULL; |
| env->DeleteLocalRef(valueObj); valueObj = NULL; |
| } |
| } |
| |
| *map = hashMap; |
| |
| return OK; |
| } |
| |
| status_t ConvertKeyValueArraysToMessage( |
| JNIEnv *env, jobjectArray keys, jobjectArray values, |
| sp<AMessage> *out) { |
| ScopedLocalRef<jclass> stringClass(env, env->FindClass("java/lang/String")); |
| CHECK(stringClass.get() != NULL); |
| ScopedLocalRef<jclass> integerClass(env, env->FindClass("java/lang/Integer")); |
| CHECK(integerClass.get() != NULL); |
| ScopedLocalRef<jclass> longClass(env, env->FindClass("java/lang/Long")); |
| CHECK(longClass.get() != NULL); |
| ScopedLocalRef<jclass> floatClass(env, env->FindClass("java/lang/Float")); |
| CHECK(floatClass.get() != NULL); |
| ScopedLocalRef<jclass> byteBufClass(env, env->FindClass("java/nio/ByteBuffer")); |
| CHECK(byteBufClass.get() != NULL); |
| |
| sp<AMessage> msg = new AMessage; |
| |
| jsize numEntries = 0; |
| |
| if (keys != NULL) { |
| if (values == NULL) { |
| return -EINVAL; |
| } |
| |
| numEntries = env->GetArrayLength(keys); |
| |
| if (numEntries != env->GetArrayLength(values)) { |
| return -EINVAL; |
| } |
| } else if (values != NULL) { |
| return -EINVAL; |
| } |
| |
| for (jsize i = 0; i < numEntries; ++i) { |
| jobject keyObj = env->GetObjectArrayElement(keys, i); |
| |
| if (!env->IsInstanceOf(keyObj, stringClass.get())) { |
| return -EINVAL; |
| } |
| |
| const char *tmp = env->GetStringUTFChars((jstring)keyObj, NULL); |
| |
| if (tmp == NULL) { |
| return -ENOMEM; |
| } |
| |
| AString key = tmp; |
| |
| env->ReleaseStringUTFChars((jstring)keyObj, tmp); |
| tmp = NULL; |
| |
| jobject valueObj = env->GetObjectArrayElement(values, i); |
| |
| if (env->IsInstanceOf(valueObj, stringClass.get())) { |
| const char *value = env->GetStringUTFChars((jstring)valueObj, NULL); |
| |
| if (value == NULL) { |
| return -ENOMEM; |
| } |
| |
| msg->setString(key.c_str(), value); |
| |
| env->ReleaseStringUTFChars((jstring)valueObj, value); |
| value = NULL; |
| } else if (env->IsInstanceOf(valueObj, integerClass.get())) { |
| jmethodID intValueID = |
| env->GetMethodID(integerClass.get(), "intValue", "()I"); |
| CHECK(intValueID != NULL); |
| |
| jint value = env->CallIntMethod(valueObj, intValueID); |
| |
| msg->setInt32(key.c_str(), value); |
| } else if (env->IsInstanceOf(valueObj, longClass.get())) { |
| jmethodID longValueID = |
| env->GetMethodID(longClass.get(), "longValue", "()J"); |
| CHECK(longValueID != NULL); |
| |
| jlong value = env->CallLongMethod(valueObj, longValueID); |
| |
| msg->setInt64(key.c_str(), value); |
| } else if (env->IsInstanceOf(valueObj, floatClass.get())) { |
| jmethodID floatValueID = |
| env->GetMethodID(floatClass.get(), "floatValue", "()F"); |
| CHECK(floatValueID != NULL); |
| |
| jfloat value = env->CallFloatMethod(valueObj, floatValueID); |
| |
| msg->setFloat(key.c_str(), value); |
| } else if (env->IsInstanceOf(valueObj, byteBufClass.get())) { |
| jmethodID positionID = |
| env->GetMethodID(byteBufClass.get(), "position", "()I"); |
| CHECK(positionID != NULL); |
| |
| jmethodID limitID = |
| env->GetMethodID(byteBufClass.get(), "limit", "()I"); |
| CHECK(limitID != NULL); |
| |
| jint position = env->CallIntMethod(valueObj, positionID); |
| jint limit = env->CallIntMethod(valueObj, limitID); |
| |
| sp<ABuffer> buffer = new ABuffer(limit - position); |
| |
| void *data = env->GetDirectBufferAddress(valueObj); |
| |
| if (data != NULL) { |
| memcpy(buffer->data(), |
| (const uint8_t *)data + position, |
| buffer->size()); |
| } else { |
| jmethodID arrayID = |
| env->GetMethodID(byteBufClass.get(), "array", "()[B"); |
| CHECK(arrayID != NULL); |
| |
| jbyteArray byteArray = |
| (jbyteArray)env->CallObjectMethod(valueObj, arrayID); |
| CHECK(byteArray != NULL); |
| |
| env->GetByteArrayRegion( |
| byteArray, |
| position, |
| buffer->size(), |
| (jbyte *)buffer->data()); |
| |
| env->DeleteLocalRef(byteArray); byteArray = NULL; |
| } |
| |
| msg->setBuffer(key.c_str(), buffer); |
| } |
| } |
| |
| *out = msg; |
| |
| return OK; |
| } |
| |
| } // namespace android |
| |