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118 lines
4.0 KiB
118 lines
4.0 KiB
7 months ago
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/*
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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 "common_video/include/i420_buffer_pool.h"
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#include <stdint.h>
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#include <string.h>
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#include "api/scoped_refptr.h"
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#include "api/video/i420_buffer.h"
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#include "api/video/video_frame_buffer.h"
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#include "test/gtest.h"
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namespace webrtc {
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TEST(TestI420BufferPool, SimpleFrameReuse) {
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I420BufferPool pool;
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auto 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->DataY();
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const uint8_t* u_ptr = buffer->DataU();
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const uint8_t* v_ptr = buffer->DataV();
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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->DataY());
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EXPECT_EQ(u_ptr, buffer->DataU());
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EXPECT_EQ(v_ptr, buffer->DataV());
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}
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TEST(TestI420BufferPool, FrameReuseWithDefaultThenExplicitStride) {
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I420BufferPool pool;
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auto buffer = pool.CreateBuffer(15, 16);
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EXPECT_EQ(15, buffer->width());
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EXPECT_EQ(16, buffer->height());
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// The default Y stride is width and UV stride is halfwidth (rounded up).
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ASSERT_EQ(15, buffer->StrideY());
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ASSERT_EQ(8, buffer->StrideU());
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ASSERT_EQ(8, buffer->StrideV());
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// Extract non-refcounted pointers for testing.
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const uint8_t* y_ptr = buffer->DataY();
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const uint8_t* u_ptr = buffer->DataU();
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const uint8_t* v_ptr = buffer->DataV();
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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 with explicit strides if they match the
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// assumed default above.
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buffer = pool.CreateBuffer(15, 16, 15, 8, 8);
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EXPECT_EQ(y_ptr, buffer->DataY());
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EXPECT_EQ(u_ptr, buffer->DataU());
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EXPECT_EQ(v_ptr, buffer->DataV());
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EXPECT_EQ(15, buffer->width());
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EXPECT_EQ(16, buffer->height());
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EXPECT_EQ(15, buffer->StrideY());
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EXPECT_EQ(8, buffer->StrideU());
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EXPECT_EQ(8, buffer->StrideV());
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}
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TEST(TestI420BufferPool, FailToReuseWrongSize) {
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// Set max frames to 1, just to make sure the first buffer is being released.
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I420BufferPool pool(/*zero_initialize=*/false, 1);
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auto 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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// 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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ASSERT_TRUE(buffer);
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EXPECT_EQ(32, buffer->width());
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EXPECT_EQ(16, buffer->height());
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}
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TEST(TestI420BufferPool, FailToReuseWrongStride) {
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// Set max frames to 1, just to make sure the first buffer is being released.
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I420BufferPool pool(/*zero_initialize=*/false, 1);
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auto buffer = pool.CreateBuffer(32, 32, 32, 16, 16);
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// Make sure the stride was read correctly, for the rest of the test.
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ASSERT_EQ(16, buffer->StrideU());
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ASSERT_EQ(16, buffer->StrideV());
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buffer = pool.CreateBuffer(32, 32, 32, 20, 20);
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ASSERT_TRUE(buffer);
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EXPECT_EQ(32, buffer->StrideY());
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EXPECT_EQ(20, buffer->StrideU());
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EXPECT_EQ(20, buffer->StrideV());
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}
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TEST(TestI420BufferPool, FrameValidAfterPoolDestruction) {
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rtc::scoped_refptr<I420Buffer> 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_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->MutableDataY(), 0xA5, 16 * buffer->StrideY());
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}
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TEST(TestI420BufferPool, MaxNumberOfBuffers) {
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I420BufferPool pool(false, 1);
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auto buffer1 = pool.CreateBuffer(16, 16);
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EXPECT_NE(nullptr, buffer1.get());
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EXPECT_EQ(nullptr, pool.CreateBuffer(16, 16).get());
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}
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} // namespace webrtc
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