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media / gpu / test / video_test_environment.h [blame]
// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// This file contains helper classes for video accelerator unittests.
#ifndef MEDIA_GPU_TEST_VIDEO_TEST_ENVIRONMENT_H_
#define MEDIA_GPU_TEST_VIDEO_TEST_ENVIRONMENT_H_
#include <memory>
#include <vector>
#include "base/at_exit.h"
#include "base/files/file_path.h"
#include "base/test/scoped_feature_list.h"
#include "media/gpu/test/video_frame_file_writer.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace test {
class TaskEnvironment;
} // namespace test
} // namespace base
namespace media {
namespace test {
// The frame output mode allows controlling which video frames are written to
// disk. Writing frames will greatly slow down the test and generate a lot of
// test artifacts, so be careful when configuring other modes than kNone in
// automated testing.
enum class FrameOutputMode {
kNone, // Don't output any frames.
kCorrupt, // Only output corrupt frames.
kAll // Output all frames.
};
// Frame output configuration.
struct FrameOutputConfig {
// The frame output mode controls which frames will be output.
FrameOutputMode output_mode = FrameOutputMode::kNone;
// The maximum number of frames that will be output.
uint64_t output_limit = std::numeric_limits<uint64_t>::max();
// The format of frames that are output.
VideoFrameFileWriter::OutputFormat output_format =
VideoFrameFileWriter::OutputFormat::kPNG;
};
class VideoTestEnvironment : public ::testing::Environment {
public:
VideoTestEnvironment();
// Features are overridden by given features in this environment.
VideoTestEnvironment(
const std::vector<base::test::FeatureRef>& enabled_features,
const std::vector<base::test::FeatureRef>& disabled_features,
const bool need_task_environment = true);
virtual ~VideoTestEnvironment();
// ::testing::Environment implementation.
// Tear down video test environment, called once for entire test run.
void TearDown() override;
// Get the name of the test output file path (testsuitename/testname).
base::FilePath GetTestOutputFilePath() const;
// Queries whether V4L2 virtual driver is used.
bool IsV4L2VirtualDriver() const;
private:
// An exit manager is required by the |task_environment_| to run callbacks
// at shutdown. It must be declared before |task_environment_| to ensure that
// it is destroyed after |task_environment_|. Neither |at_exit_manager| nor
// |task_environment_| are set if the VideoTestEnvironment is used by a Test
// Suite.
std::unique_ptr<base::AtExitManager> at_exit_manager_;
std::unique_ptr<base::test::TaskEnvironment> task_environment_;
// Features to override default feature settings in this environment.
base::test::ScopedFeatureList scoped_feature_list_;
};
} // namespace test
} // namespace media
#endif // MEDIA_GPU_TEST_VIDEO_TEST_ENVIRONMENT_H_