| /* |
| * Copyright (C) 2013 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 "IMediaHTTPConnection" |
| #include <utils/Log.h> |
| |
| #include <media/IMediaHTTPConnection.h> |
| |
| #include <binder/IMemory.h> |
| #include <binder/Parcel.h> |
| #include <utils/String8.h> |
| #include <media/stagefright/foundation/ADebug.h> |
| #include <media/stagefright/MediaErrors.h> |
| |
| namespace android { |
| |
| enum { |
| CONNECT = IBinder::FIRST_CALL_TRANSACTION, |
| DISCONNECT, |
| READ_AT, |
| GET_SIZE, |
| GET_MIME_TYPE, |
| GET_URI |
| }; |
| |
| struct BpMediaHTTPConnection : public BpInterface<IMediaHTTPConnection> { |
| BpMediaHTTPConnection(const sp<IBinder> &impl) |
| : BpInterface<IMediaHTTPConnection>(impl) { |
| } |
| |
| virtual bool connect( |
| const char *uri, const KeyedVector<String8, String8> *headers) { |
| Parcel data, reply; |
| data.writeInterfaceToken( |
| IMediaHTTPConnection::getInterfaceDescriptor()); |
| |
| String16 tmp(uri); |
| data.writeString16(tmp); |
| |
| tmp = String16(""); |
| if (headers != NULL) { |
| for (size_t i = 0; i < headers->size(); ++i) { |
| String16 key(headers->keyAt(i).string()); |
| String16 val(headers->valueAt(i).string()); |
| |
| tmp.append(key); |
| tmp.append(String16(": ")); |
| tmp.append(val); |
| tmp.append(String16("\r\n")); |
| } |
| } |
| data.writeString16(tmp); |
| |
| remote()->transact(CONNECT, data, &reply); |
| |
| int32_t exceptionCode = reply.readExceptionCode(); |
| |
| if (exceptionCode) { |
| return false; |
| } |
| |
| sp<IBinder> binder = reply.readStrongBinder(); |
| mMemory = interface_cast<IMemory>(binder); |
| |
| return mMemory != NULL; |
| } |
| |
| virtual void disconnect() { |
| Parcel data, reply; |
| data.writeInterfaceToken( |
| IMediaHTTPConnection::getInterfaceDescriptor()); |
| |
| remote()->transact(DISCONNECT, data, &reply); |
| } |
| |
| virtual ssize_t readAt(off64_t offset, void *buffer, size_t size) { |
| Parcel data, reply; |
| data.writeInterfaceToken( |
| IMediaHTTPConnection::getInterfaceDescriptor()); |
| |
| data.writeInt64(offset); |
| data.writeInt32(size); |
| |
| status_t err = remote()->transact(READ_AT, data, &reply); |
| if (err != OK) { |
| ALOGE("remote readAt failed"); |
| return UNKNOWN_ERROR; |
| } |
| |
| int32_t exceptionCode = reply.readExceptionCode(); |
| |
| if (exceptionCode) { |
| return UNKNOWN_ERROR; |
| } |
| |
| int32_t lenOrErrorCode = reply.readInt32(); |
| |
| // Negative values are error codes |
| if (lenOrErrorCode < 0) { |
| return lenOrErrorCode; |
| } |
| |
| size_t len = lenOrErrorCode; |
| |
| if (len > size) { |
| ALOGE("requested %zu, got %zu", size, len); |
| return ERROR_OUT_OF_RANGE; |
| } |
| if (len > mMemory->size()) { |
| ALOGE("got %zu, but memory has %zu", len, mMemory->size()); |
| return ERROR_OUT_OF_RANGE; |
| } |
| |
| memcpy(buffer, mMemory->pointer(), len); |
| |
| return len; |
| } |
| |
| virtual off64_t getSize() { |
| Parcel data, reply; |
| data.writeInterfaceToken( |
| IMediaHTTPConnection::getInterfaceDescriptor()); |
| |
| remote()->transact(GET_SIZE, data, &reply); |
| |
| int32_t exceptionCode = reply.readExceptionCode(); |
| |
| if (exceptionCode) { |
| return UNKNOWN_ERROR; |
| } |
| |
| return reply.readInt64(); |
| } |
| |
| virtual status_t getMIMEType(String8 *mimeType) { |
| *mimeType = String8(""); |
| |
| Parcel data, reply; |
| data.writeInterfaceToken( |
| IMediaHTTPConnection::getInterfaceDescriptor()); |
| |
| remote()->transact(GET_MIME_TYPE, data, &reply); |
| |
| int32_t exceptionCode = reply.readExceptionCode(); |
| |
| if (exceptionCode) { |
| return UNKNOWN_ERROR; |
| } |
| |
| *mimeType = String8(reply.readString16()); |
| |
| return OK; |
| } |
| |
| virtual status_t getUri(String8 *uri) { |
| *uri = String8(""); |
| |
| Parcel data, reply; |
| data.writeInterfaceToken( |
| IMediaHTTPConnection::getInterfaceDescriptor()); |
| |
| remote()->transact(GET_URI, data, &reply); |
| |
| int32_t exceptionCode = reply.readExceptionCode(); |
| |
| if (exceptionCode) { |
| return UNKNOWN_ERROR; |
| } |
| |
| *uri = String8(reply.readString16()); |
| |
| return OK; |
| } |
| |
| private: |
| sp<IMemory> mMemory; |
| }; |
| |
| IMPLEMENT_META_INTERFACE( |
| MediaHTTPConnection, "android.media.IMediaHTTPConnection"); |
| |
| } // namespace android |