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// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/video_frame_pool.h"
#include "testing/gmock/include/gmock/gmock.h"
namespace media {
class VideoFramePoolTest : public ::testing::Test {
public:
VideoFramePoolTest() : pool_(new VideoFramePool()) {}
scoped_refptr<VideoFrame> CreateFrame(VideoFrame::Format format,
int timestamp_ms) {
gfx::Size coded_size(320,240);
gfx::Rect visible_rect(coded_size);
gfx::Size natural_size(coded_size);
return pool_->CreateFrame(
format, coded_size, visible_rect, natural_size,
base::TimeDelta::FromMilliseconds(timestamp_ms));
}
void CheckPoolSize(size_t size) const {
EXPECT_EQ(size, pool_->GetPoolSizeForTesting());
}
protected:
scoped_ptr<VideoFramePool> pool_;
};
TEST_F(VideoFramePoolTest, SimpleFrameReuse) {
scoped_refptr<VideoFrame> frame = CreateFrame(VideoFrame::YV12, 10);
const uint8* old_y_data = frame->data(VideoFrame::kYPlane);
// Clear frame reference to return the frame to the pool.
frame = NULL;
// Verify that the next frame from the pool uses the same memory.
scoped_refptr<VideoFrame> new_frame = CreateFrame(VideoFrame::YV12, 10);
EXPECT_EQ(old_y_data, new_frame->data(VideoFrame::kYPlane));
}
TEST_F(VideoFramePoolTest, SimpleFormatChange) {
scoped_refptr<VideoFrame> frame_a = CreateFrame(VideoFrame::YV12, 10);
scoped_refptr<VideoFrame> frame_b = CreateFrame(VideoFrame::YV12, 10);
// Clear frame references to return the frames to the pool.
frame_a = NULL;
frame_b = NULL;
// Verify that both frames are in the pool.
CheckPoolSize(2u);
// Verify that requesting a frame with a different format causes the pool
// to get drained.
scoped_refptr<VideoFrame> new_frame = CreateFrame(VideoFrame::YV12A, 10);
CheckPoolSize(0u);
}
TEST_F(VideoFramePoolTest, FrameValidAfterPoolDestruction) {
scoped_refptr<VideoFrame> frame = CreateFrame(VideoFrame::YV12, 10);
// Destroy the pool.
pool_.reset();
// Write to the Y plane. The memory tools should detect a
// use-after-free if the storage was actually removed by pool destruction.
memset(frame->data(VideoFrame::kYPlane), 0xff,
frame->rows(VideoFrame::kYPlane) * frame->stride(VideoFrame::kYPlane));
}
} // namespace media
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