/*
* Copyright ( c ) 2026 , Alliance for Open Media . All rights reserved .
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1 . 0 . If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file , you can
* obtain it at www . aomedia . org / license / software . 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 www . aomedia . org / license / patent .
*/
#include "config/aom_config.h"
#include "gtest/gtest.h"
#include "test/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/i420_video_source.h"
#include "test/util.h"
namespace {
const ::libaom_test::TestMode kTestMode[] =
#if CONFIG_REALTIME_ONLY
{ ::libaom_test::kRealTime };
#else
{ ::libaom_test::kRealTime, ::libaom_test::kOnePassGood };
#endif
const int kUseFixedQPOffsetsMode[] = { 1 , 2 };
class UseFixedQPOffsetsTest
: public ::libaom_test::CodecTestWith2Params<libaom_test::TestMode, int >,
public ::libaom_test::EncoderTest {
protected :
UseFixedQPOffsetsTest() : EncoderTest(GET_PARAM(0 )) {}
~UseFixedQPOffsetsTest() override = default ;
void SetUp() override {
InitializeConfig(GET_PARAM(1 ));
cfg_.kf_max_dist = 9999 ;
cfg_.rc_end_usage = AOM_Q;
cfg_.use_fixed_qp_offsets = GET_PARAM(2 );
}
void PreEncodeFrameHook(::libaom_test::VideoSource *video,
::libaom_test::Encoder *encoder) override {
if (video->frame() == 0 ) {
encoder->Control(AOME_SET_CPUUSED, 6 );
encoder->Control(AOME_SET_CQ_LEVEL, frame_qp_);
}
}
void PostEncodeFrameHook(::libaom_test::Encoder *encoder) override {
int qp = 0 ;
encoder->Control(AOME_GET_LAST_QUANTIZER_64, &qp);
// If a call to encoder->EncodeFrame() results in a last QP of 0,
// interpret as the frame being read into the lookahead buffer.
if (qp == 0 ) return ;
if (cfg_.use_fixed_qp_offsets == 2 ) {
// Setting use_fixed_qp_offsets = 2 means every frame should use the same
// QP
ASSERT_EQ(qp, frame_qp_);
} else {
ASSERT_LE(qp, frame_qp_);
}
}
void DoTest() {
::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv" , 352 ,
288 , 30 , 1 , 0 , 33 );
frame_qp_ = 35 ;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
}
int frame_qp_;
};
TEST_P(UseFixedQPOffsetsTest, TestQPOffsets) { DoTest(); }
AV1_INSTANTIATE_TEST_SUITE(UseFixedQPOffsetsTest,
::testing::ValuesIn(kTestMode),
::testing::ValuesIn(kUseFixedQPOffsetsMode));
} // namespace
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