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/*
* Copyright (c) 2021, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 3-Clause Clear License
* and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear
* License was not distributed with this source code in the LICENSE file, you
* can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the
* Alliance for Open Media Patent License 1.0 was not distributed with this
* source code in the PATENTS file, you can obtain it at
* aomedia.org/license/patent-license/.
*/
#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
#include "config/aom_config.h"
#include "test/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/i420_video_source.h"
#include "test/util.h"
#include "test/y4m_video_source.h"
namespace {
class LosslessTestLarge
: public ::libaom_test::CodecTestWith2Params<libaom_test::TestMode,
aom_rc_mode>,
public ::libaom_test::EncoderTest {
protected:
LosslessTestLarge()
: EncoderTest(GET_PARAM(0)), psnr_(DBL_MAX), nframes_(0),
encoding_mode_(GET_PARAM(1)), rc_end_usage_(GET_PARAM(2)) {}
virtual ~LosslessTestLarge() {}
virtual void SetUp() {
InitializeConfig();
SetMode(encoding_mode_);
cfg_.rc_end_usage = rc_end_usage_;
}
virtual void PreEncodeFrameHook(::libaom_test::VideoSource *video,
::libaom_test::Encoder *encoder) {
if (video->frame() == 0) {
// Only call Control if quantizer > 0 to verify that using quantizer
// alone will activate lossless
if (cfg_.rc_max_quantizer > 0 || cfg_.rc_min_quantizer > 0) {
encoder->Control(AV1E_SET_LOSSLESS, 1);
}
}
}
virtual void BeginPassHook(unsigned int /*pass*/) {
psnr_ = DBL_MAX;
nframes_ = 0;
}
virtual void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) {
if (pkt->data.psnr.psnr[0] < psnr_) psnr_ = pkt->data.psnr.psnr[0];
}
double GetMinPsnr() const { return psnr_; }
virtual bool HandleDecodeResult(const aom_codec_err_t res_dec,
libaom_test::Decoder *decoder) {
EXPECT_EQ(AOM_CODEC_OK, res_dec) << decoder->DecodeError();
if (AOM_CODEC_OK == res_dec) {
aom_codec_ctx_t *ctx_dec = decoder->GetDecoder();
AOM_CODEC_CONTROL_TYPECHECKED(ctx_dec, AOMD_GET_LAST_QUANTIZER,
&base_qindex_);
EXPECT_EQ(base_qindex_, 0)
<< "Error: Base_qindex is non zero for lossless coding";
}
return AOM_CODEC_OK == res_dec;
}
private:
double psnr_;
unsigned int nframes_;
libaom_test::TestMode encoding_mode_;
aom_rc_mode rc_end_usage_;
int base_qindex_;
};
TEST_P(LosslessTestLarge, TestLossLessEncoding) {
const aom_rational timebase = { 33333333, 1000000000 };
cfg_.g_timebase = timebase;
cfg_.rc_target_bitrate = 2000;
cfg_.g_lag_in_frames = 25;
cfg_.rc_min_quantizer = 0;
cfg_.rc_max_quantizer = 0;
init_flags_ = AOM_CODEC_USE_PSNR;
// intentionally changed the dimension for better testing coverage
const unsigned int width = 352;
const unsigned int height = 288;
const unsigned int bit_depth = 8;
libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", width,
height, timebase.den, timebase.num, 0, 5);
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
const double min_psnr = GetMinPsnr();
const double lossless_psnr =
get_lossless_psnr(width, height, bit_depth, false);
EXPECT_EQ(min_psnr, lossless_psnr);
}
TEST_P(LosslessTestLarge, TestLossLessEncoding444) {
libaom_test::Y4mVideoSource video("rush_hour_444.y4m", 0, 3);
cfg_.g_profile = 1;
cfg_.g_timebase = video.timebase();
cfg_.rc_target_bitrate = 2000;
cfg_.g_lag_in_frames = 25;
cfg_.rc_min_quantizer = 0;
cfg_.rc_max_quantizer = 0;
init_flags_ = AOM_CODEC_USE_PSNR;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
const double min_psnr = GetMinPsnr();
const double lossless_psnr = get_lossless_psnr(352, 288, 8, true);
EXPECT_EQ(min_psnr, lossless_psnr);
}
TEST_P(LosslessTestLarge, TestLossLessEncodingCtrl) {
const aom_rational timebase = { 33333333, 1000000000 };
cfg_.g_timebase = timebase;
cfg_.rc_target_bitrate = 2000;
cfg_.g_lag_in_frames = 25;
// Intentionally set Q > 0, to make sure control can be used to activate
// lossless
cfg_.rc_min_quantizer = 40;
cfg_.rc_max_quantizer = 80;
init_flags_ = AOM_CODEC_USE_PSNR;
const unsigned int width = 352;
const unsigned int height = 288;
const unsigned int bit_depth = 8;
libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", width,
height, timebase.den, timebase.num, 0, 5);
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
const double min_psnr = GetMinPsnr();
const double lossless_psnr =
get_lossless_psnr(width, height, bit_depth, false);
EXPECT_EQ(min_psnr, lossless_psnr);
}
AV1_INSTANTIATE_TEST_SUITE(LosslessTestLarge, GOODQUALITY_TEST_MODES,
::testing::Values(AOM_Q, AOM_VBR, AOM_CBR, AOM_CQ));
} // namespace