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/*
**
** 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 <utils/Parcel.h>
#include <utils/IMemory.h>
#include <media/IMediaPlayerService.h>
namespace android {
enum {
CREATE_URL = IBinder::FIRST_CALL_TRANSACTION,
CREATE_FD,
DECODE_URL,
DECODE_FD,
};
class BpMediaPlayerService: public BpInterface<IMediaPlayerService>
{
public:
BpMediaPlayerService(const sp<IBinder>& impl)
: BpInterface<IMediaPlayerService>(impl)
{
}
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<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)
{
Parcel data, reply;
data.writeInterfaceToken(IMediaPlayerService::getInterfaceDescriptor());
data.writeCString(url);
remote()->transact(DECODE_URL, data, &reply);
*pSampleRate = uint32_t(reply.readInt32());
*pNumChannels = 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)
{
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();
return interface_cast<IMemory>(reply.readStrongBinder());
}
};
IMPLEMENT_META_INTERFACE(MediaPlayerService, "android.hardware.IMediaPlayerService");
// ----------------------------------------------------------------------
#define CHECK_INTERFACE(interface, data, reply) \
do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
LOGW("Call incorrectly routed to " #interface); \
return PERMISSION_DENIED; \
} } while (0)
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;
sp<IMemory> player = decode(url, &sampleRate, &numChannels);
reply->writeInt32(sampleRate);
reply->writeInt32(numChannels);
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;
sp<IMemory> player = decode(fd, offset, length, &sampleRate, &numChannels);
reply->writeInt32(sampleRate);
reply->writeInt32(numChannels);
reply->writeStrongBinder(player->asBinder());
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android
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