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/*
* Copyright (C) 2010 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 "IStreamSource"
#include <utils/Log.h>
#include <media/IStreamSource.h>
#include <media/stagefright/foundation/AMessage.h>
#include <media/stagefright/foundation/MediaKeys.h>
#include <binder/IMemory.h>
#include <binder/Parcel.h>
namespace android {
enum {
// IStreamSource
SET_LISTENER = IBinder::FIRST_CALL_TRANSACTION,
SET_BUFFERS,
ON_BUFFER_AVAILABLE,
FLAGS,
// IStreamListener
QUEUE_BUFFER,
ISSUE_COMMAND,
};
struct BpStreamSource : public BpInterface<IStreamSource> {
explicit BpStreamSource(const sp<IBinder> &impl)
: BpInterface<IStreamSource>(impl) {
}
virtual void setListener(const sp<IStreamListener> &listener) {
Parcel data, reply;
data.writeInterfaceToken(IStreamSource::getInterfaceDescriptor());
data.writeStrongBinder(IInterface::asBinder(listener));
remote()->transact(SET_LISTENER, data, &reply);
}
virtual void setBuffers(const Vector<sp<IMemory> > &buffers) {
Parcel data, reply;
data.writeInterfaceToken(IStreamSource::getInterfaceDescriptor());
data.writeInt64(static_cast<int64_t>(buffers.size()));
for (size_t i = 0; i < buffers.size(); ++i) {
data.writeStrongBinder(IInterface::asBinder(buffers.itemAt(i)));
}
remote()->transact(SET_BUFFERS, data, &reply);
}
virtual void onBufferAvailable(size_t index) {
Parcel data, reply;
data.writeInterfaceToken(IStreamSource::getInterfaceDescriptor());
data.writeInt64(static_cast<int64_t>(index));
remote()->transact(
ON_BUFFER_AVAILABLE, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual uint32_t flags() const {
Parcel data, reply;
data.writeInterfaceToken(IStreamSource::getInterfaceDescriptor());
remote()->transact(FLAGS, data, &reply);
return reply.readInt32();
}
};
IMPLEMENT_META_INTERFACE(StreamSource, "android.hardware.IStreamSource");
status_t BnStreamSource::onTransact(
uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
switch (code) {
case SET_LISTENER:
{
CHECK_INTERFACE(IStreamSource, data, reply);
setListener(
interface_cast<IStreamListener>(data.readStrongBinder()));
break;
}
case SET_BUFFERS:
{
CHECK_INTERFACE(IStreamSource, data, reply);
size_t n = static_cast<size_t>(data.readInt64());
Vector<sp<IMemory> > buffers;
for (size_t i = 0; i < n; ++i) {
sp<IMemory> mem =
interface_cast<IMemory>(data.readStrongBinder());
if (mem != NULL) {
buffers.push(mem);
} else if (data.dataAvail() == 0) {
break;
}
}
setBuffers(buffers);
break;
}
case ON_BUFFER_AVAILABLE:
{
CHECK_INTERFACE(IStreamSource, data, reply);
onBufferAvailable(static_cast<size_t>(data.readInt64()));
break;
}
case FLAGS:
{
CHECK_INTERFACE(IStreamSource, data, reply);
reply->writeInt32(this->flags());
break;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
return OK;
}
////////////////////////////////////////////////////////////////////////////////
struct BpStreamListener : public BpInterface<IStreamListener> {
explicit BpStreamListener(const sp<IBinder> &impl)
: BpInterface<IStreamListener>(impl) {
}
virtual void queueBuffer(size_t index, size_t size) {
Parcel data, reply;
data.writeInterfaceToken(IStreamListener::getInterfaceDescriptor());
data.writeInt64(static_cast<int64_t>(index));
data.writeInt64(static_cast<int64_t>(size));
remote()->transact(QUEUE_BUFFER, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual void issueCommand(
Command cmd, bool synchronous, const sp<AMessage> &msg) {
Parcel data, reply;
data.writeInterfaceToken(IStreamListener::getInterfaceDescriptor());
data.writeInt32(static_cast<int32_t>(cmd));
data.writeInt32(static_cast<int32_t>(synchronous));
if (msg != NULL) {
data.writeInt32(1);
msg->writeToParcel(&data);
} else {
data.writeInt32(0);
}
remote()->transact(ISSUE_COMMAND, data, &reply, IBinder::FLAG_ONEWAY);
}
};
IMPLEMENT_META_INTERFACE(StreamListener, "android.hardware.IStreamListener");
status_t BnStreamListener::onTransact(
uint32_t code, const Parcel &data, Parcel *reply, uint32_t flags) {
switch (code) {
case QUEUE_BUFFER:
{
CHECK_INTERFACE(IStreamListener, data, reply);
size_t index = static_cast<size_t>(data.readInt64());
size_t size = static_cast<size_t>(data.readInt64());
queueBuffer(index, size);
break;
}
case ISSUE_COMMAND:
{
CHECK_INTERFACE(IStreamListener, data, reply);
Command cmd = static_cast<Command>(data.readInt32());
bool synchronous = static_cast<bool>(data.readInt32());
sp<AMessage> msg;
if (data.readInt32()) {
msg = AMessage::FromParcel(data);
}
issueCommand(cmd, synchronous, msg);
break;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
return OK;
}
} // namespace android