ref: d55682c2aadbca664727fde886d42d39f7cbb5cd
dir: libvpx/test/vp9_thread_test.cc
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <string>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_config.h"
#include "test/codec_factory.h"
#include "test/decode_test_driver.h"
#include "test/md5_helper.h"
#if CONFIG_WEBM_IO
#include "test/webm_video_source.h"
#endif
#include "vpx_util/vpx_thread.h"
namespace {
using std::string;
class VPxWorkerThreadTest : public ::testing::TestWithParam<bool> {
protected:
virtual ~VPxWorkerThreadTest() {}
virtual void SetUp() { vpx_get_worker_interface()->init(&worker_); }
virtual void TearDown() { vpx_get_worker_interface()->end(&worker_); }
void Run(VPxWorker *worker) {
const bool synchronous = GetParam();
if (synchronous) {
vpx_get_worker_interface()->execute(worker);
} else {
vpx_get_worker_interface()->launch(worker);
}
}
VPxWorker worker_;
};
int ThreadHook(void *data, void *return_value) {
int *const hook_data = reinterpret_cast<int *>(data);
*hook_data = 5;
return *reinterpret_cast<int *>(return_value);
}
TEST_P(VPxWorkerThreadTest, HookSuccess) {
// should be a no-op.
EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
for (int i = 0; i < 2; ++i) {
EXPECT_NE(vpx_get_worker_interface()->reset(&worker_), 0);
int hook_data = 0;
int return_value = 1; // return successfully from the hook
worker_.hook = ThreadHook;
worker_.data1 = &hook_data;
worker_.data2 = &return_value;
Run(&worker_);
EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
EXPECT_FALSE(worker_.had_error);
EXPECT_EQ(5, hook_data);
// should be a no-op.
EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
}
}
TEST_P(VPxWorkerThreadTest, HookFailure) {
EXPECT_NE(vpx_get_worker_interface()->reset(&worker_), 0);
int hook_data = 0;
int return_value = 0; // return failure from the hook
worker_.hook = ThreadHook;
worker_.data1 = &hook_data;
worker_.data2 = &return_value;
Run(&worker_);
EXPECT_FALSE(vpx_get_worker_interface()->sync(&worker_));
EXPECT_EQ(1, worker_.had_error);
// Ensure _reset() clears the error and _launch() can be called again.
return_value = 1;
EXPECT_NE(vpx_get_worker_interface()->reset(&worker_), 0);
EXPECT_FALSE(worker_.had_error);
vpx_get_worker_interface()->launch(&worker_);
EXPECT_NE(vpx_get_worker_interface()->sync(&worker_), 0);
EXPECT_FALSE(worker_.had_error);
}
TEST_P(VPxWorkerThreadTest, EndWithoutSync) {
// Create a large number of threads to increase the chances of detecting a
// race. Doing more work in the hook is no guarantee as any race would occur
// post hook execution in the main thread loop driver.
static const int kNumWorkers = 64;
VPxWorker workers[kNumWorkers];
int hook_data[kNumWorkers];
int return_value[kNumWorkers];
for (int n = 0; n < kNumWorkers; ++n) {
vpx_get_worker_interface()->init(&workers[n]);
return_value[n] = 1; // return successfully from the hook
workers[n].hook = ThreadHook;
workers[n].data1 = &hook_data[n];
workers[n].data2 = &return_value[n];
}
for (int i = 0; i < 2; ++i) {
for (int n = 0; n < kNumWorkers; ++n) {
EXPECT_NE(vpx_get_worker_interface()->reset(&workers[n]), 0);
hook_data[n] = 0;
}
for (int n = 0; n < kNumWorkers; ++n) {
Run(&workers[n]);
}
for (int n = kNumWorkers - 1; n >= 0; --n) {
vpx_get_worker_interface()->end(&workers[n]);
}
}
}
TEST(VPxWorkerThreadTest, TestInterfaceAPI) {
EXPECT_EQ(0, vpx_set_worker_interface(nullptr));
EXPECT_NE(vpx_get_worker_interface(), nullptr);
for (int i = 0; i < 6; ++i) {
VPxWorkerInterface winterface = *vpx_get_worker_interface();
switch (i) {
default:
case 0: winterface.init = nullptr; break;
case 1: winterface.reset = nullptr; break;
case 2: winterface.sync = nullptr; break;
case 3: winterface.launch = nullptr; break;
case 4: winterface.execute = nullptr; break;
case 5: winterface.end = nullptr; break;
}
EXPECT_EQ(0, vpx_set_worker_interface(&winterface));
}
}
// -----------------------------------------------------------------------------
// Multi-threaded decode tests
#if CONFIG_WEBM_IO
struct FileList {
const char *name;
const char *expected_md5;
};
// Decodes |filename| with |num_threads|. Returns the md5 of the decoded frames.
string DecodeFile(const string &filename, int num_threads) {
libvpx_test::WebMVideoSource video(filename);
video.Init();
vpx_codec_dec_cfg_t cfg = vpx_codec_dec_cfg_t();
cfg.threads = num_threads;
libvpx_test::VP9Decoder decoder(cfg, 0);
libvpx_test::MD5 md5;
for (video.Begin(); video.cxdata(); video.Next()) {
const vpx_codec_err_t res =
decoder.DecodeFrame(video.cxdata(), video.frame_size());
if (res != VPX_CODEC_OK) {
EXPECT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError();
break;
}
libvpx_test::DxDataIterator dec_iter = decoder.GetDxData();
const vpx_image_t *img = nullptr;
// Get decompressed data
while ((img = dec_iter.Next())) {
md5.Add(img);
}
}
return string(md5.Get());
}
void DecodeFiles(const FileList files[]) {
for (const FileList *iter = files; iter->name != nullptr; ++iter) {
SCOPED_TRACE(iter->name);
for (int t = 1; t <= 8; ++t) {
EXPECT_EQ(iter->expected_md5, DecodeFile(iter->name, t))
<< "threads = " << t;
}
}
}
// Trivial serialized thread worker interface implementation.
// Note any worker that requires synchronization between other workers will
// hang.
namespace impl {
namespace {
void Init(VPxWorker *const worker) { memset(worker, 0, sizeof(*worker)); }
int Reset(VPxWorker *const /*worker*/) { return 1; }
int Sync(VPxWorker *const worker) { return !worker->had_error; }
void Execute(VPxWorker *const worker) {
worker->had_error |= !worker->hook(worker->data1, worker->data2);
}
void Launch(VPxWorker *const worker) { Execute(worker); }
void End(VPxWorker *const /*worker*/) {}
} // namespace
} // namespace impl
TEST(VPxWorkerThreadTest, TestSerialInterface) {
static const VPxWorkerInterface serial_interface = {
impl::Init, impl::Reset, impl::Sync, impl::Launch, impl::Execute, impl::End
};
// TODO(jzern): Avoid using a file that will use the row-based thread
// loopfilter, with the simple serialized implementation it will hang. This is
// due to its expectation that rows will be run in parallel as they wait on
// progress in the row above before proceeding.
static const char expected_md5[] = "b35a1b707b28e82be025d960aba039bc";
static const char filename[] = "vp90-2-03-size-226x226.webm";
VPxWorkerInterface default_interface = *vpx_get_worker_interface();
EXPECT_NE(vpx_set_worker_interface(&serial_interface), 0);
EXPECT_EQ(expected_md5, DecodeFile(filename, 2));
// Reset the interface.
EXPECT_NE(vpx_set_worker_interface(&default_interface), 0);
EXPECT_EQ(expected_md5, DecodeFile(filename, 2));
}
TEST(VP9DecodeMultiThreadedTest, NoTilesNonFrameParallel) {
// no tiles or frame parallel; this exercises loop filter threading.
EXPECT_EQ("b35a1b707b28e82be025d960aba039bc",
DecodeFile("vp90-2-03-size-226x226.webm", 2));
}
TEST(VP9DecodeMultiThreadedTest, FrameParallel) {
static const FileList files[] = { { "vp90-2-08-tile_1x2_frame_parallel.webm",
"68ede6abd66bae0a2edf2eb9232241b6" },
{ "vp90-2-08-tile_1x4_frame_parallel.webm",
"368ebc6ebf3a5e478d85b2c3149b2848" },
{ "vp90-2-08-tile_1x8_frame_parallel.webm",
"17e439da2388aff3a0f69cb22579c6c1" },
{ nullptr, nullptr } };
DecodeFiles(files);
}
TEST(VP9DecodeMultiThreadedTest, FrameParallelResize) {
static const FileList files[] = {
{ "vp90-2-14-resize-fp-tiles-1-16.webm",
"0cd5e632c326297e975f38949c31ea94" },
{ "vp90-2-14-resize-fp-tiles-1-2-4-8-16.webm",
"5c78a96a42e7f4a4f6b2edcdb791e44c" },
{ "vp90-2-14-resize-fp-tiles-1-2.webm",
"e030450ae85c3277be2a418769df98e2" },
{ "vp90-2-14-resize-fp-tiles-1-4.webm",
"312eed4e2b64eb7a4e7f18916606a430" },
{ "vp90-2-14-resize-fp-tiles-16-1.webm",
"1755c16d8af16a9cb3fe7338d90abe52" },
{ "vp90-2-14-resize-fp-tiles-16-2.webm",
"500300592d3fcb6f12fab25e48aaf4df" },
{ "vp90-2-14-resize-fp-tiles-16-4.webm",
"47c48379fa6331215d91c67648e1af6e" },
{ "vp90-2-14-resize-fp-tiles-16-8-4-2-1.webm",
"eecf17290739bc708506fa4827665989" },
{ "vp90-2-14-resize-fp-tiles-16-8.webm",
"29b6bb54e4c26b5ca85d5de5fed94e76" },
{ "vp90-2-14-resize-fp-tiles-1-8.webm",
"1b6f175e08cd82cf84bb800ac6d1caa3" },
{ "vp90-2-14-resize-fp-tiles-2-16.webm",
"ca3b03e4197995d8d5444ede7a6c0804" },
{ "vp90-2-14-resize-fp-tiles-2-1.webm",
"99aec065369d70bbb78ccdff65afed3f" },
{ "vp90-2-14-resize-fp-tiles-2-4.webm",
"22d0ebdb49b87d2920a85aea32e1afd5" },
{ "vp90-2-14-resize-fp-tiles-2-8.webm",
"c2115cf051c62e0f7db1d4a783831541" },
{ "vp90-2-14-resize-fp-tiles-4-16.webm",
"c690d7e1719b31367564cac0af0939cb" },
{ "vp90-2-14-resize-fp-tiles-4-1.webm",
"a926020b2cc3e15ad4cc271853a0ff26" },
{ "vp90-2-14-resize-fp-tiles-4-2.webm",
"42699063d9e581f1993d0cf890c2be78" },
{ "vp90-2-14-resize-fp-tiles-4-8.webm",
"7f76d96036382f45121e3d5aa6f8ec52" },
{ "vp90-2-14-resize-fp-tiles-8-16.webm",
"76a43fcdd7e658542913ea43216ec55d" },
{ "vp90-2-14-resize-fp-tiles-8-1.webm",
"8e3fbe89486ca60a59299dea9da91378" },
{ "vp90-2-14-resize-fp-tiles-8-2.webm",
"ae96f21f21b6370cc0125621b441fc52" },
{ "vp90-2-14-resize-fp-tiles-8-4.webm",
"3eb4f24f10640d42218f7fd7b9fd30d4" },
{ nullptr, nullptr }
};
DecodeFiles(files);
}
TEST(VP9DecodeMultiThreadedTest, NonFrameParallel) {
static const FileList files[] = {
{ "vp90-2-08-tile_1x2.webm", "570b4a5d5a70d58b5359671668328a16" },
{ "vp90-2-08-tile_1x4.webm", "988d86049e884c66909d2d163a09841a" },
{ "vp90-2-08-tile_1x8.webm", "0941902a52e9092cb010905eab16364c" },
{ "vp90-2-08-tile-4x1.webm", "06505aade6647c583c8e00a2f582266f" },
{ "vp90-2-08-tile-4x4.webm", "85c2299892460d76e2c600502d52bfe2" },
{ nullptr, nullptr }
};
DecodeFiles(files);
}
#endif // CONFIG_WEBM_IO
INSTANTIATE_TEST_SUITE_P(Synchronous, VPxWorkerThreadTest, ::testing::Bool());
} // namespace