/* ** ** Copyright 2008, 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 <binder/IMemory.h> #include <media/IMediaPlayerService.h> #include <media/IMediaRecorder.h> #include <media/IOMX.h> #include <utils/Errors.h> // for status_t namespace android { enum { CREATE_URL = IBinder::FIRST_CALL_TRANSACTION, CREATE_FD, DECODE_URL, DECODE_FD, CREATE_MEDIA_RECORDER, CREATE_METADATA_RETRIEVER, CREATE_OMX, SNOOP }; class BpMediaPlayerService: public BpInterface<IMediaPlayerService> { public: BpMediaPlayerService(const sp<IBinder>& impl) : BpInterface<IMediaPlayerService>(impl) { } virtual sp<IMediaMetadataRetriever> createMetadataRetriever(pid_t pid) { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); data.writeInt32(pid); remote()->transact(CREATE_METADATA_RETRIEVER, data, &reply); return interface_cast<IMediaMetadataRetriever>(reply.readStrongBinder()); } virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url) { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); data.writeInt32(pid); data.writeStrongBinder(client->asBinder()); data.writeCString(url); remote()->transact(CREATE_URL, data, &reply); return interface_cast<IMediaPlayer>(reply.readStrongBinder()); } virtual sp<IMediaRecorder> createMediaRecorder(pid_t pid) { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); data.writeInt32(pid); remote()->transact(CREATE_MEDIA_RECORDER, data, &reply); return interface_cast<IMediaRecorder>(reply.readStrongBinder()); } virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, int fd, int64_t offset, int64_t length) { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); data.writeInt32(pid); data.writeStrongBinder(client->asBinder()); data.writeFileDescriptor(fd); data.writeInt64(offset); data.writeInt64(length); remote()->transact(CREATE_FD, data, &reply); return interface_cast<IMediaPlayer>(reply.readStrongBinder()); } virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); data.writeCString(url); remote()->transact(DECODE_URL, data, &reply); *pSampleRate = uint32_t(reply.readInt32()); *pNumChannels = reply.readInt32(); *pFormat = reply.readInt32(); return interface_cast<IMemory>(reply.readStrongBinder()); } virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); data.writeFileDescriptor(fd); data.writeInt64(offset); data.writeInt64(length); remote()->transact(DECODE_FD, data, &reply); *pSampleRate = uint32_t(reply.readInt32()); *pNumChannels = reply.readInt32(); *pFormat = reply.readInt32(); return interface_cast<IMemory>(reply.readStrongBinder()); } virtual sp<IMemory> snoop() { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); remote()->transact(SNOOP, data, &reply); return interface_cast<IMemory>(reply.readStrongBinder()); } virtual sp<IOMX> createOMX() { Parcel data, reply; data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor()); remote()->transact(CREATE_OMX, data, &reply); return interface_cast<IOMX>(reply.readStrongBinder()); } }; IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.media.IMediaPlayerService"); // ---------------------------------------------------------------------- status_t BnMediaPlayerService::onTransact( uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) { switch(code) { case CREATE_URL: { CHECK_INTERFACE(IMediaPlayerService, data, reply); pid_t pid = data.readInt32(); sp<IMediaPlayerClient> client = interface_cast<IMediaPlayerClient>(data.readStrongBinder()); const char* url = data.readCString(); sp<IMediaPlayer> player = create(pid, client, url); reply->writeStrongBinder(player->asBinder()); return NO_ERROR; } break; case CREATE_FD: { CHECK_INTERFACE(IMediaPlayerService, data, reply); pid_t pid = data.readInt32(); sp<IMediaPlayerClient> client = interface_cast<IMediaPlayerClient>(data.readStrongBinder()); int fd = dup(data.readFileDescriptor()); int64_t offset = data.readInt64(); int64_t length = data.readInt64(); sp<IMediaPlayer> player = create(pid, client, fd, offset, length); reply->writeStrongBinder(player->asBinder()); return NO_ERROR; } break; case DECODE_URL: { CHECK_INTERFACE(IMediaPlayerService, data, reply); const char* url = data.readCString(); uint32_t sampleRate; int numChannels; int format; sp<IMemory> player = decode(url, &sampleRate, &numChannels, &format); reply->writeInt32(sampleRate); reply->writeInt32(numChannels); reply->writeInt32(format); reply->writeStrongBinder(player->asBinder()); return NO_ERROR; } break; case DECODE_FD: { CHECK_INTERFACE(IMediaPlayerService, data, reply); int fd = dup(data.readFileDescriptor()); int64_t offset = data.readInt64(); int64_t length = data.readInt64(); uint32_t sampleRate; int numChannels; int format; sp<IMemory> player = decode(fd, offset, length, &sampleRate, &numChannels, &format); reply->writeInt32(sampleRate); reply->writeInt32(numChannels); reply->writeInt32(format); reply->writeStrongBinder(player->asBinder()); return NO_ERROR; } break; case SNOOP: { CHECK_INTERFACE(IMediaPlayerService, data, reply); sp<IMemory> snooped_audio = snoop(); reply->writeStrongBinder(snooped_audio->asBinder()); return NO_ERROR; } break; case CREATE_MEDIA_RECORDER: { CHECK_INTERFACE(IMediaPlayerService, data, reply); pid_t pid = data.readInt32(); sp<IMediaRecorder> recorder = createMediaRecorder(pid); reply->writeStrongBinder(recorder->asBinder()); return NO_ERROR; } break; case CREATE_METADATA_RETRIEVER: { CHECK_INTERFACE(IMediaPlayerService, data, reply); pid_t pid = data.readInt32(); sp<IMediaMetadataRetriever> retriever = createMetadataRetriever(pid); reply->writeStrongBinder(retriever->asBinder()); return NO_ERROR; } break; case CREATE_OMX: { CHECK_INTERFACE(IMediaPlayerService, data, reply); sp<IOMX> omx = createOMX(); reply->writeStrongBinder(omx->asBinder()); return NO_ERROR; } break; default: return BBinder::onTransact(code, data, reply, flags); } } // ---------------------------------------------------------------------------- }; // namespace android