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/*
* Copyright (c) 2015 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 "test/codec_factory.h"
#include "test/decode_test_driver.h"
#include "test/md5_helper.h"
#include "test/util.h"
#include "test/webm_video_source.h"
namespace {
const char kVp9TestFile[] = "vp90-2-08-tile_1x8_frame_parallel.webm";
const char kVp9Md5File[] = "vp90-2-08-tile_1x8_frame_parallel.webm.md5";
// Class for testing shutting off the loop filter.
class SkipLoopFilterTest {
public:
SkipLoopFilterTest()
: video_(nullptr), decoder_(nullptr), md5_file_(nullptr) {}
~SkipLoopFilterTest() {
if (md5_file_ != nullptr) fclose(md5_file_);
delete decoder_;
delete video_;
}
// If |threads| > 0 then set the decoder with that number of threads.
bool Init(int num_threads) {
expected_md5_[0] = '\0';
junk_[0] = '\0';
video_ = new libvpx_test::WebMVideoSource(kVp9TestFile);
if (video_ == nullptr) {
EXPECT_NE(video_, nullptr);
return false;
}
video_->Init();
video_->Begin();
vpx_codec_dec_cfg_t cfg = vpx_codec_dec_cfg_t();
if (num_threads > 0) cfg.threads = num_threads;
decoder_ = new libvpx_test::VP9Decoder(cfg, 0);
if (decoder_ == nullptr) {
EXPECT_NE(decoder_, nullptr);
return false;
}
OpenMd5File(kVp9Md5File);
return !::testing::Test::HasFailure();
}
// Set the VP9 skipLoopFilter control value.
void SetSkipLoopFilter(int value, vpx_codec_err_t expected_value) {
ASSERT_NE(decoder_, nullptr);
decoder_->Control(VP9_SET_SKIP_LOOP_FILTER, value, expected_value);
}
vpx_codec_err_t DecodeOneFrame() {
const vpx_codec_err_t res =
decoder_->DecodeFrame(video_->cxdata(), video_->frame_size());
if (res == VPX_CODEC_OK) {
ReadMd5();
video_->Next();
}
return res;
}
vpx_codec_err_t DecodeRemainingFrames() {
for (; video_->cxdata() != nullptr; video_->Next()) {
const vpx_codec_err_t res =
decoder_->DecodeFrame(video_->cxdata(), video_->frame_size());
if (res != VPX_CODEC_OK) return res;
ReadMd5();
}
return VPX_CODEC_OK;
}
// Checks if MD5 matches or doesn't.
void CheckMd5(bool matches) {
libvpx_test::DxDataIterator dec_iter = decoder_->GetDxData();
const vpx_image_t *img = dec_iter.Next();
CheckMd5Vpx(*img, matches);
}
private:
// TODO(fgalligan): Move the MD5 testing code into another class.
void OpenMd5File(const std::string &md5_file_name) {
md5_file_ = libvpx_test::OpenTestDataFile(md5_file_name);
ASSERT_NE(md5_file_, nullptr)
<< "MD5 file open failed. Filename: " << md5_file_name;
}
// Reads the next line of the MD5 file.
void ReadMd5() {
ASSERT_NE(md5_file_, nullptr);
const int res = fscanf(md5_file_, "%s %s", expected_md5_, junk_);
ASSERT_NE(EOF, res) << "Read md5 data failed";
expected_md5_[32] = '\0';
}
// Checks if the last read MD5 matches |img| or doesn't.
void CheckMd5Vpx(const vpx_image_t &img, bool matches) {
::libvpx_test::MD5 md5_res;
md5_res.Add(&img);
const char *const actual_md5 = md5_res.Get();
// Check MD5.
if (matches)
ASSERT_STREQ(expected_md5_, actual_md5) << "MD5 checksums don't match";
else
ASSERT_STRNE(expected_md5_, actual_md5) << "MD5 checksums match";
}
libvpx_test::WebMVideoSource *video_;
libvpx_test::VP9Decoder *decoder_;
FILE *md5_file_;
char expected_md5_[33];
char junk_[128];
};
TEST(SkipLoopFilterTest, ShutOffLoopFilter) {
const int non_zero_value = 1;
const int num_threads = 0;
SkipLoopFilterTest skip_loop_filter;
ASSERT_TRUE(skip_loop_filter.Init(num_threads));
skip_loop_filter.SetSkipLoopFilter(non_zero_value, VPX_CODEC_OK);
ASSERT_EQ(VPX_CODEC_OK, skip_loop_filter.DecodeRemainingFrames());
skip_loop_filter.CheckMd5(false);
}
TEST(SkipLoopFilterTest, ShutOffLoopFilterSingleThread) {
const int non_zero_value = 1;
const int num_threads = 1;
SkipLoopFilterTest skip_loop_filter;
ASSERT_TRUE(skip_loop_filter.Init(num_threads));
skip_loop_filter.SetSkipLoopFilter(non_zero_value, VPX_CODEC_OK);
ASSERT_EQ(VPX_CODEC_OK, skip_loop_filter.DecodeRemainingFrames());
skip_loop_filter.CheckMd5(false);
}
TEST(SkipLoopFilterTest, ShutOffLoopFilter8Threads) {
const int non_zero_value = 1;
const int num_threads = 8;
SkipLoopFilterTest skip_loop_filter;
ASSERT_TRUE(skip_loop_filter.Init(num_threads));
skip_loop_filter.SetSkipLoopFilter(non_zero_value, VPX_CODEC_OK);
ASSERT_EQ(VPX_CODEC_OK, skip_loop_filter.DecodeRemainingFrames());
skip_loop_filter.CheckMd5(false);
}
TEST(SkipLoopFilterTest, WithLoopFilter) {
const int non_zero_value = 1;
const int num_threads = 0;
SkipLoopFilterTest skip_loop_filter;
ASSERT_TRUE(skip_loop_filter.Init(num_threads));
skip_loop_filter.SetSkipLoopFilter(non_zero_value, VPX_CODEC_OK);
skip_loop_filter.SetSkipLoopFilter(0, VPX_CODEC_OK);
ASSERT_EQ(VPX_CODEC_OK, skip_loop_filter.DecodeRemainingFrames());
skip_loop_filter.CheckMd5(true);
}
TEST(SkipLoopFilterTest, ToggleLoopFilter) {
const int num_threads = 0;
SkipLoopFilterTest skip_loop_filter;
ASSERT_TRUE(skip_loop_filter.Init(num_threads));
for (int i = 0; i < 10; ++i) {
skip_loop_filter.SetSkipLoopFilter(i % 2, VPX_CODEC_OK);
ASSERT_EQ(VPX_CODEC_OK, skip_loop_filter.DecodeOneFrame());
}
ASSERT_EQ(VPX_CODEC_OK, skip_loop_filter.DecodeRemainingFrames());
skip_loop_filter.CheckMd5(false);
}
} // namespace
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