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/*
* 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
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