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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.
*/
//#define LOG_NDEBUG 0
#define LOG_TAG "ZeroFilter"
#include <media/stagefright/foundation/ABuffer.h>
#include <media/stagefright/foundation/ADebug.h>
#include <media/stagefright/foundation/AMessage.h>
#include "ZeroFilter.h"
namespace android {
status_t ZeroFilter::setParameters(const sp<AMessage> &msg) {
sp<AMessage> params;
CHECK(msg->findMessage("params", ¶ms));
int32_t invert;
if (params->findInt32("invert", &invert)) {
mInvertData = (invert != 0);
}
return OK;
}
status_t ZeroFilter::processBuffers(
const sp<ABuffer> &srcBuffer, const sp<ABuffer> &outBuffer) {
// assuming identical input & output buffers, since we're a copy filter
if (mInvertData) {
uint32_t* src = (uint32_t*)srcBuffer->data();
uint32_t* dest = (uint32_t*)outBuffer->data();
for (size_t i = 0; i < srcBuffer->size() / 4; ++i) {
*(dest++) = *(src++) ^ 0xFFFFFFFF;
}
} else {
memcpy(outBuffer->data(), srcBuffer->data(), srcBuffer->size());
}
outBuffer->setRange(0, srcBuffer->size());
return OK;
}
} // namespace android
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