| /* |
| * Copyright (C) 2014, 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. |
| */ |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <binder/Parcel.h> |
| #include <media/stagefright/MediaCodecList.h> |
| #include <media/IMediaCodecList.h> |
| #include <media/MediaCodecInfo.h> |
| |
| #include <utils/Errors.h> // for status_t |
| |
| namespace android { |
| |
| enum { |
| CREATE = IBinder::FIRST_CALL_TRANSACTION, |
| COUNT_CODECS, |
| GET_CODEC_INFO, |
| GET_GLOBAL_SETTINGS, |
| FIND_CODEC_BY_TYPE, |
| FIND_CODEC_BY_NAME, |
| }; |
| |
| class BpMediaCodecList: public BpInterface<IMediaCodecList> |
| { |
| public: |
| BpMediaCodecList(const sp<IBinder>& impl) |
| : BpInterface<IMediaCodecList>(impl) |
| { |
| } |
| |
| virtual size_t countCodecs() const |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaCodecList::getInterfaceDescriptor()); |
| remote()->transact(COUNT_CODECS, data, &reply); |
| return static_cast<size_t>(reply.readInt32()); |
| } |
| |
| virtual sp<MediaCodecInfo> getCodecInfo(size_t index) const |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaCodecList::getInterfaceDescriptor()); |
| data.writeInt32(index); |
| remote()->transact(GET_CODEC_INFO, data, &reply); |
| status_t err = reply.readInt32(); |
| if (err == OK) { |
| return MediaCodecInfo::FromParcel(reply); |
| } else { |
| return NULL; |
| } |
| } |
| |
| virtual const sp<AMessage> getGlobalSettings() const |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaCodecList::getInterfaceDescriptor()); |
| remote()->transact(GET_GLOBAL_SETTINGS, data, &reply); |
| status_t err = reply.readInt32(); |
| if (err == OK) { |
| return AMessage::FromParcel(reply); |
| } else { |
| return NULL; |
| } |
| } |
| |
| virtual ssize_t findCodecByType( |
| const char *type, bool encoder, size_t startIndex = 0) const |
| { |
| if (startIndex > INT32_MAX) { |
| return NAME_NOT_FOUND; |
| } |
| |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaCodecList::getInterfaceDescriptor()); |
| data.writeCString(type); |
| data.writeInt32(encoder); |
| data.writeInt32(startIndex); |
| remote()->transact(FIND_CODEC_BY_TYPE, data, &reply); |
| return static_cast<ssize_t>(reply.readInt32()); |
| } |
| |
| virtual ssize_t findCodecByName(const char *name) const |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IMediaCodecList::getInterfaceDescriptor()); |
| data.writeCString(name); |
| remote()->transact(FIND_CODEC_BY_NAME, data, &reply); |
| return static_cast<ssize_t>(reply.readInt32()); |
| } |
| }; |
| |
| IMPLEMENT_META_INTERFACE(MediaCodecList, "android.media.IMediaCodecList"); |
| |
| // ---------------------------------------------------------------------- |
| |
| status_t BnMediaCodecList::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| { |
| switch (code) { |
| case COUNT_CODECS: |
| { |
| CHECK_INTERFACE(IMediaCodecList, data, reply); |
| size_t count = countCodecs(); |
| if (count > INT32_MAX) { |
| count = INT32_MAX; |
| } |
| reply->writeInt32(count); |
| return NO_ERROR; |
| } |
| break; |
| |
| case GET_CODEC_INFO: |
| { |
| CHECK_INTERFACE(IMediaCodecList, data, reply); |
| size_t index = static_cast<size_t>(data.readInt32()); |
| const sp<MediaCodecInfo> info = getCodecInfo(index); |
| if (info != NULL) { |
| reply->writeInt32(OK); |
| info->writeToParcel(reply); |
| } else { |
| reply->writeInt32(-ERANGE); |
| } |
| return NO_ERROR; |
| } |
| break; |
| |
| case GET_GLOBAL_SETTINGS: |
| { |
| CHECK_INTERFACE(IMediaCodecList, data, reply); |
| const sp<AMessage> info = getGlobalSettings(); |
| if (info != NULL) { |
| reply->writeInt32(OK); |
| info->writeToParcel(reply); |
| } else { |
| reply->writeInt32(-ERANGE); |
| } |
| return NO_ERROR; |
| } |
| break; |
| |
| case FIND_CODEC_BY_TYPE: |
| { |
| CHECK_INTERFACE(IMediaCodecList, data, reply); |
| const char *type = data.readCString(); |
| bool isEncoder = static_cast<bool>(data.readInt32()); |
| size_t startIndex = static_cast<size_t>(data.readInt32()); |
| ssize_t index = findCodecByType(type, isEncoder, startIndex); |
| if (index > INT32_MAX || index < 0) { |
| index = NAME_NOT_FOUND; |
| } |
| reply->writeInt32(index); |
| return NO_ERROR; |
| } |
| break; |
| |
| case FIND_CODEC_BY_NAME: |
| { |
| CHECK_INTERFACE(IMediaCodecList, data, reply); |
| const char *name = data.readCString(); |
| ssize_t index = findCodecByName(name); |
| if (index > INT32_MAX || index < 0) { |
| index = NAME_NOT_FOUND; |
| } |
| reply->writeInt32(index); |
| return NO_ERROR; |
| } |
| break; |
| |
| default: |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| } |
| |
| // ---------------------------------------------------------------------------- |
| |
| } // namespace android |