chromium/third_party/libvpx/tests/pgo/decode_encode_profile_test.cc

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Implementation of a PGO test for the decoder and encoder

#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/libvpx/source/libvpx/test/codec_factory.h"
#include "third_party/libvpx/source/libvpx/test/i420_video_source.h"
#include "third_party/libvpx/source/libvpx/test/util.h"
#include "third_party/libvpx/source/libvpx/test/webm_video_source.h"
#include "third_party/libvpx/source/libvpx/vpx/vpx_codec.h"
#include "third_party/libvpx/source/libvpx/vpx_ports/vpx_timer.h"
#include "third_party/libvpx/source/libvpx/vpx_util/vpx_pthread.h"

namespace {

make_tuple;

constexpr int kMaxPsnr = …;
constexpr double kUsecsInSec = …;
constexpr vpx_rational kTimebase = …;

/**
 * Test vectors:
 *   Parameter ID 0 - video file name
 *   Parameter ID 1 - number of threads
 */
DecodePerfParam;

const DecodePerfParam kVP9DecodePerfVectors[] = …;

/**
 * Class for obtaining video frames from memory.
 *
 * The class is used to pass frames from the decoder to the encoder.
 * Using an in-memory source allows to exercise the encoder on embedded
 * devices with limited storage space, where storing large YUV files
 * is not feasible.
 */
class InMemoryVideoSource : public ::libvpx_test::VideoSource { … };

THREADFN EncoderThreadAdapter(void* obj);

class VP9M2MEncoder : public ::libvpx_test::EncoderTest { … };

THREADFN EncoderThreadAdapter(void* obj) { … }

class DecodeEncodePerfTest : public ::testing::TestWithParam<DecodePerfParam> { … };

// In-memory decode and encode test for Profile Guided Optimizations
//
//  This performance test is designed to exercise the decoder and encoder
//  and generate a compilation profile for the decoder and encoder.
//  Contrary to the name we don't really care to measure the actual test case
//  performance, but rather to hit as many code paths as possible.
//  The decoder and encoder run on separate threads, but the frames are
//  synchronized instead of using a buffer queue.
//  TODO(crbug.com/chromium/325103518): introduce noise to the decoded frames.

TEST_P(DecodeEncodePerfTest, PerfTest) { … }

INSTANTIATE_TEST_SUITE_P(…);
}  // namespace