/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <string>
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#include "testing/gtest/include/gtest/gtest.h"
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#include "webrtc/common_video/include/i420_buffer_pool.h"
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namespace webrtc {
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TEST(TestI420BufferPool, SimpleFrameReuse) {
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I420BufferPool pool;
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rtc::scoped_refptr<VideoFrameBuffer> buffer = pool.CreateBuffer(16, 16);
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EXPECT_EQ(16, buffer->width());
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EXPECT_EQ(16, buffer->height());
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// Extract non-refcounted pointers for testing.
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const uint8_t* y_ptr = buffer->data(kYPlane);
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const uint8_t* u_ptr = buffer->data(kUPlane);
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const uint8_t* v_ptr = buffer->data(kVPlane);
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// Release buffer so that it is returned to the pool.
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buffer = nullptr;
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// Check that the memory is resued.
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buffer = pool.CreateBuffer(16, 16);
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EXPECT_EQ(y_ptr, buffer->data(kYPlane));
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EXPECT_EQ(u_ptr, buffer->data(kUPlane));
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EXPECT_EQ(v_ptr, buffer->data(kVPlane));
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EXPECT_EQ(16, buffer->width());
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EXPECT_EQ(16, buffer->height());
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}
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TEST(TestI420BufferPool, FailToReuse) {
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I420BufferPool pool;
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rtc::scoped_refptr<VideoFrameBuffer> buffer = pool.CreateBuffer(16, 16);
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// Extract non-refcounted pointers for testing.
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const uint8_t* u_ptr = buffer->data(kUPlane);
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const uint8_t* v_ptr = buffer->data(kVPlane);
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// Release buffer so that it is returned to the pool.
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buffer = nullptr;
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// Check that the pool doesn't try to reuse buffers of incorrect size.
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buffer = pool.CreateBuffer(32, 16);
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EXPECT_EQ(32, buffer->width());
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EXPECT_EQ(16, buffer->height());
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EXPECT_NE(u_ptr, buffer->data(kUPlane));
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EXPECT_NE(v_ptr, buffer->data(kVPlane));
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}
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TEST(TestI420BufferPool, ExclusiveOwner) {
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// Check that created buffers are exclusive so that they can be written to.
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I420BufferPool pool;
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rtc::scoped_refptr<VideoFrameBuffer> buffer = pool.CreateBuffer(16, 16);
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EXPECT_TRUE(buffer->HasOneRef());
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}
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TEST(TestI420BufferPool, FrameValidAfterPoolDestruction) {
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rtc::scoped_refptr<VideoFrameBuffer> buffer;
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{
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I420BufferPool pool;
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buffer = pool.CreateBuffer(16, 16);
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}
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EXPECT_TRUE(buffer->HasOneRef());
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EXPECT_EQ(16, buffer->width());
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EXPECT_EQ(16, buffer->height());
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// Try to trigger use-after-free errors by writing to y-plane.
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memset(buffer->MutableData(kYPlane), 0xA5, 16 * buffer->stride(kYPlane));
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}
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} // namespace webrtc
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