243 lines
8.8 KiB
C++
243 lines
8.8 KiB
C++
/*
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**
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** Copyright 2008, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/Parcel.h>
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#include <binder/IMemory.h>
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#include <media/IMediaPlayerService.h>
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#include <media/IMediaRecorder.h>
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#include <media/IOMX.h>
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#include <utils/Errors.h> // for status_t
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namespace android {
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enum {
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CREATE_URL = IBinder::FIRST_CALL_TRANSACTION,
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CREATE_FD,
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DECODE_URL,
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DECODE_FD,
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CREATE_MEDIA_RECORDER,
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CREATE_METADATA_RETRIEVER,
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GET_OMX
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};
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class BpMediaPlayerService: public BpInterface<IMediaPlayerService>
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{
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public:
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BpMediaPlayerService(const sp<IBinder>& impl)
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: BpInterface<IMediaPlayerService>(impl)
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{
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}
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virtual sp<IMediaMetadataRetriever> createMetadataRetriever(pid_t pid)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
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data.writeInt32(pid);
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remote()->transact(CREATE_METADATA_RETRIEVER, data, &reply);
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return interface_cast<IMediaMetadataRetriever>(reply.readStrongBinder());
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}
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virtual sp<IMediaPlayer> create(
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pid_t pid, const sp<IMediaPlayerClient>& client,
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const char* url, const KeyedVector<String8, String8> *headers, int audioSessionId) {
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Parcel data, reply;
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data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
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data.writeInt32(pid);
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data.writeStrongBinder(client->asBinder());
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data.writeCString(url);
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if (headers == NULL) {
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data.writeInt32(0);
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} else {
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// serialize the headers
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data.writeInt32(headers->size());
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for (size_t i = 0; i < headers->size(); ++i) {
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data.writeString8(headers->keyAt(i));
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data.writeString8(headers->valueAt(i));
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}
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}
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data.writeInt32(audioSessionId);
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remote()->transact(CREATE_URL, data, &reply);
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return interface_cast<IMediaPlayer>(reply.readStrongBinder());
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}
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virtual sp<IMediaRecorder> createMediaRecorder(pid_t pid)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
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data.writeInt32(pid);
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remote()->transact(CREATE_MEDIA_RECORDER, data, &reply);
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return interface_cast<IMediaRecorder>(reply.readStrongBinder());
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}
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virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, int fd,
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int64_t offset, int64_t length, int audioSessionId)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
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data.writeInt32(pid);
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data.writeStrongBinder(client->asBinder());
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data.writeFileDescriptor(fd);
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data.writeInt64(offset);
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data.writeInt64(length);
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data.writeInt32(audioSessionId);
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remote()->transact(CREATE_FD, data, &reply);
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return interface_cast<IMediaPlayer>(reply.readStrongBinder());;
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}
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virtual sp<IMemory> decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
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data.writeCString(url);
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remote()->transact(DECODE_URL, data, &reply);
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*pSampleRate = uint32_t(reply.readInt32());
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*pNumChannels = reply.readInt32();
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*pFormat = reply.readInt32();
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return interface_cast<IMemory>(reply.readStrongBinder());
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}
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virtual sp<IMemory> decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat)
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{
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Parcel data, reply;
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data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
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data.writeFileDescriptor(fd);
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data.writeInt64(offset);
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data.writeInt64(length);
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remote()->transact(DECODE_FD, data, &reply);
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*pSampleRate = uint32_t(reply.readInt32());
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*pNumChannels = reply.readInt32();
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*pFormat = reply.readInt32();
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return interface_cast<IMemory>(reply.readStrongBinder());
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}
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virtual sp<IOMX> getOMX() {
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Parcel data, reply;
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data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
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remote()->transact(GET_OMX, data, &reply);
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return interface_cast<IOMX>(reply.readStrongBinder());
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}
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};
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IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.media.IMediaPlayerService");
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// ----------------------------------------------------------------------
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status_t BnMediaPlayerService::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case CREATE_URL: {
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CHECK_INTERFACE(IMediaPlayerService, data, reply);
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pid_t pid = data.readInt32();
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sp<IMediaPlayerClient> client =
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interface_cast<IMediaPlayerClient>(data.readStrongBinder());
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const char* url = data.readCString();
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KeyedVector<String8, String8> headers;
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int32_t numHeaders = data.readInt32();
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for (int i = 0; i < numHeaders; ++i) {
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String8 key = data.readString8();
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String8 value = data.readString8();
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headers.add(key, value);
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}
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int audioSessionId = data.readInt32();
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sp<IMediaPlayer> player = create(
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pid, client, url, numHeaders > 0 ? &headers : NULL, audioSessionId);
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reply->writeStrongBinder(player->asBinder());
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return NO_ERROR;
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} break;
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case CREATE_FD: {
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CHECK_INTERFACE(IMediaPlayerService, data, reply);
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pid_t pid = data.readInt32();
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sp<IMediaPlayerClient> client = interface_cast<IMediaPlayerClient>(data.readStrongBinder());
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int fd = dup(data.readFileDescriptor());
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int64_t offset = data.readInt64();
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int64_t length = data.readInt64();
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int audioSessionId = data.readInt32();
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sp<IMediaPlayer> player = create(pid, client, fd, offset, length, audioSessionId);
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reply->writeStrongBinder(player->asBinder());
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return NO_ERROR;
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} break;
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case DECODE_URL: {
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CHECK_INTERFACE(IMediaPlayerService, data, reply);
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const char* url = data.readCString();
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uint32_t sampleRate;
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int numChannels;
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int format;
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sp<IMemory> player = decode(url, &sampleRate, &numChannels, &format);
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reply->writeInt32(sampleRate);
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reply->writeInt32(numChannels);
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reply->writeInt32(format);
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reply->writeStrongBinder(player->asBinder());
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return NO_ERROR;
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} break;
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case DECODE_FD: {
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CHECK_INTERFACE(IMediaPlayerService, data, reply);
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int fd = dup(data.readFileDescriptor());
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int64_t offset = data.readInt64();
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int64_t length = data.readInt64();
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uint32_t sampleRate;
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int numChannels;
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int format;
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sp<IMemory> player = decode(fd, offset, length, &sampleRate, &numChannels, &format);
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reply->writeInt32(sampleRate);
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reply->writeInt32(numChannels);
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reply->writeInt32(format);
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reply->writeStrongBinder(player->asBinder());
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return NO_ERROR;
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} break;
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case CREATE_MEDIA_RECORDER: {
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CHECK_INTERFACE(IMediaPlayerService, data, reply);
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pid_t pid = data.readInt32();
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sp<IMediaRecorder> recorder = createMediaRecorder(pid);
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reply->writeStrongBinder(recorder->asBinder());
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return NO_ERROR;
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} break;
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case CREATE_METADATA_RETRIEVER: {
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CHECK_INTERFACE(IMediaPlayerService, data, reply);
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pid_t pid = data.readInt32();
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sp<IMediaMetadataRetriever> retriever = createMetadataRetriever(pid);
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reply->writeStrongBinder(retriever->asBinder());
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return NO_ERROR;
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} break;
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case GET_OMX: {
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CHECK_INTERFACE(IMediaPlayerService, data, reply);
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sp<IOMX> omx = getOMX();
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reply->writeStrongBinder(omx->asBinder());
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return NO_ERROR;
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} break;
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default:
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return BBinder::onTransact(code, data, reply, flags);
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}
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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