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+/*
+ * Copyright (c) 2016, 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 <climits>
+#include <vector>
+#include "aom_dsp/aom_dsp_common.h"
+#include "common/tools_common.h"
+#include "av1/encoder/encoder.h"
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+#include "test/codec_factory.h"
+#include "test/encode_test_driver.h"
+#include "test/i420_video_source.h"
+#include "test/video_source.h"
+#include "test/util.h"
+#include "test/y4m_video_source.h"
+
+// Enable(1) or Disable(0) writing of the compressed bitstream.
+#define WRITE_COMPRESSED_STREAM 0
+
+namespace {
+
+#if WRITE_COMPRESSED_STREAM
+static void mem_put_le16(char *const mem, unsigned int val) {
+ mem[0] = val;
+ mem[1] = val >> 8;
+}
+
+static void mem_put_le32(char *const mem, unsigned int val) {
+ mem[0] = val;
+ mem[1] = val >> 8;
+ mem[2] = val >> 16;
+ mem[3] = val >> 24;
+}
+
+static void write_ivf_file_header(const aom_codec_enc_cfg_t *const cfg,
+ int frame_cnt, FILE *const outfile) {
+ char header[32];
+
+ header[0] = 'D';
+ header[1] = 'K';
+ header[2] = 'I';
+ header[3] = 'F';
+ mem_put_le16(header + 4, 0); /* version */
+ mem_put_le16(header + 6, 32); /* headersize */
+ mem_put_le32(header + 8, AV1_FOURCC); /* fourcc (av1) */
+ mem_put_le16(header + 12, cfg->g_w); /* width */
+ mem_put_le16(header + 14, cfg->g_h); /* height */
+ mem_put_le32(header + 16, cfg->g_timebase.den); /* rate */
+ mem_put_le32(header + 20, cfg->g_timebase.num); /* scale */
+ mem_put_le32(header + 24, frame_cnt); /* length */
+ mem_put_le32(header + 28, 0); /* unused */
+
+ (void)fwrite(header, 1, 32, outfile);
+}
+
+static void write_ivf_frame_size(FILE *const outfile, const size_t size) {
+ char header[4];
+ mem_put_le32(header, static_cast<unsigned int>(size));
+ (void)fwrite(header, 1, 4, outfile);
+}
+
+static void write_ivf_frame_header(const aom_codec_cx_pkt_t *const pkt,
+ FILE *const outfile) {
+ char header[12];
+ aom_codec_pts_t pts;
+
+ if (pkt->kind != AOM_CODEC_CX_FRAME_PKT) return;
+
+ pts = pkt->data.frame.pts;
+ mem_put_le32(header, static_cast<unsigned int>(pkt->data.frame.sz));
+ mem_put_le32(header + 4, pts & 0xFFFFFFFF);
+ mem_put_le32(header + 8, pts >> 32);
+
+ (void)fwrite(header, 1, 12, outfile);
+}
+#endif // WRITE_COMPRESSED_STREAM
+
+const unsigned int kInitialWidth = 320;
+const unsigned int kInitialHeight = 240;
+
+struct FrameInfo {
+ FrameInfo(aom_codec_pts_t _pts, unsigned int _w, unsigned int _h)
+ : pts(_pts), w(_w), h(_h) {}
+
+ aom_codec_pts_t pts;
+ unsigned int w;
+ unsigned int h;
+};
+
+void ScaleForFrameNumber(unsigned int frame, unsigned int initial_w,
+ unsigned int initial_h, int flag_codec,
+ bool change_start_resln, unsigned int *w,
+ unsigned int *h) {
+ if (frame < 10) {
+ if (change_start_resln) {
+ *w = initial_w / 4;
+ *h = initial_h / 4;
+ } else {
+ *w = initial_w;
+ *h = initial_h;
+ }
+ return;
+ }
+ if (frame < 20) {
+ *w = initial_w * 3 / 4;
+ *h = initial_h * 3 / 4;
+ return;
+ }
+ if (frame < 30) {
+ *w = initial_w / 2;
+ *h = initial_h / 2;
+ return;
+ }
+ if (frame < 40) {
+ *w = initial_w;
+ *h = initial_h;
+ return;
+ }
+ if (frame < 50) {
+ *w = initial_w * 3 / 4;
+ *h = initial_h * 3 / 4;
+ return;
+ }
+ if (frame < 60) {
+ *w = initial_w / 2;
+ *h = initial_h / 2;
+ return;
+ }
+ if (frame < 70) {
+ *w = initial_w;
+ *h = initial_h;
+ return;
+ }
+ if (frame < 80) {
+ *w = initial_w * 3 / 4;
+ *h = initial_h * 3 / 4;
+ return;
+ }
+ if (frame < 90) {
+ *w = initial_w / 2;
+ *h = initial_h / 2;
+ return;
+ }
+ if (frame < 100) {
+ *w = initial_w * 3 / 4;
+ *h = initial_h * 3 / 4;
+ return;
+ }
+ if (frame < 110) {
+ *w = initial_w;
+ *h = initial_h;
+ return;
+ }
+ // Go down very low
+ if (frame < 120) {
+ *w = initial_w / 4;
+ *h = initial_h / 4;
+ return;
+ }
+ if (flag_codec == 1) {
+ // Cases that only works for AV1.
+ // For AV1: Swap width and height of original.
+ if (frame < 140) {
+ *w = initial_h;
+ *h = initial_w;
+ return;
+ }
+ }
+ *w = initial_w;
+ *h = initial_h;
+}
+
+class ResizingVideoSource : public ::libaom_test::DummyVideoSource {
+ public:
+ ResizingVideoSource() {
+ SetSize(kInitialWidth, kInitialHeight);
+ limit_ = 150;
+ }
+ int flag_codec_;
+ bool change_start_resln_;
+ ~ResizingVideoSource() override = default;
+
+ protected:
+ void Begin() override {
+ frame_ = 0;
+ unsigned int width;
+ unsigned int height;
+ ScaleForFrameNumber(frame_, kInitialWidth, kInitialHeight, flag_codec_,
+ change_start_resln_, &width, &height);
+ SetSize(width, height);
+ FillFrame();
+ }
+ void Next() override {
+ ++frame_;
+ unsigned int width;
+ unsigned int height;
+ ScaleForFrameNumber(frame_, kInitialWidth, kInitialHeight, flag_codec_,
+ change_start_resln_, &width, &height);
+ SetSize(width, height);
+ FillFrame();
+ }
+};
+
+class ResizeTest
+ : public ::libaom_test::CodecTestWithParam<libaom_test::TestMode>,
+ public ::libaom_test::EncoderTest {
+ protected:
+ ResizeTest() : EncoderTest(GET_PARAM(0)) {}
+
+ ~ResizeTest() override = default;
+
+ void SetUp() override { InitializeConfig(GET_PARAM(1)); }
+
+ void PreEncodeFrameHook(libaom_test::VideoSource *video,
+ libaom_test::Encoder *encoder) override {
+ if (video->frame() == 0) {
+ if (GET_PARAM(1) == ::libaom_test::kRealTime) {
+ encoder->Control(AV1E_SET_AQ_MODE, 3);
+ encoder->Control(AOME_SET_CPUUSED, 5);
+ encoder->Control(AV1E_SET_FRAME_PARALLEL_DECODING, 1);
+ }
+ }
+ }
+
+ void DecompressedFrameHook(const aom_image_t &img,
+ aom_codec_pts_t pts) override {
+ frame_info_list_.push_back(FrameInfo(pts, img.d_w, img.d_h));
+ }
+
+ std::vector<FrameInfo> frame_info_list_;
+};
+
+TEST_P(ResizeTest, TestExternalResizeWorks) {
+ ResizingVideoSource video;
+ video.flag_codec_ = 0;
+ video.change_start_resln_ = false;
+ cfg_.g_lag_in_frames = 0;
+ // We use max(kInitialWidth, kInitialHeight) because during the test
+ // the width and height of the frame are swapped
+ cfg_.g_forced_max_frame_width = cfg_.g_forced_max_frame_height =
+ AOMMAX(kInitialWidth, kInitialHeight);
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ // Check we decoded the same number of frames as we attempted to encode
+ ASSERT_EQ(frame_info_list_.size(), video.limit());
+
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ const unsigned int frame = static_cast<unsigned>(info->pts);
+ unsigned int expected_w;
+ unsigned int expected_h;
+ ScaleForFrameNumber(frame, kInitialWidth, kInitialHeight, video.flag_codec_,
+ video.change_start_resln_, &expected_w, &expected_h);
+ EXPECT_EQ(expected_w, info->w)
+ << "Frame " << frame << " had unexpected width";
+ EXPECT_EQ(expected_h, info->h)
+ << "Frame " << frame << " had unexpected height";
+ }
+}
+
+#if !CONFIG_REALTIME_ONLY
+const unsigned int kStepDownFrame = 3;
+const unsigned int kStepUpFrame = 6;
+
+class ResizeInternalTestLarge : public ResizeTest {
+ protected:
+#if WRITE_COMPRESSED_STREAM
+ ResizeInternalTestLarge()
+ : ResizeTest(), frame0_psnr_(0.0), outfile_(nullptr), out_frames_(0) {}
+#else
+ ResizeInternalTestLarge() : ResizeTest(), frame0_psnr_(0.0) {}
+#endif
+
+ ~ResizeInternalTestLarge() override = default;
+
+ void BeginPassHook(unsigned int /*pass*/) override {
+#if WRITE_COMPRESSED_STREAM
+ outfile_ = fopen("av10-2-05-resize.ivf", "wb");
+#endif
+ }
+
+ void EndPassHook() override {
+#if WRITE_COMPRESSED_STREAM
+ if (outfile_) {
+ if (!fseek(outfile_, 0, SEEK_SET))
+ write_ivf_file_header(&cfg_, out_frames_, outfile_);
+ fclose(outfile_);
+ outfile_ = nullptr;
+ }
+#endif
+ }
+
+ void PreEncodeFrameHook(libaom_test::VideoSource *video,
+ libaom_test::Encoder *encoder) override {
+ if (change_config_) {
+ int new_q = 60;
+ if (video->frame() == 0) {
+ struct aom_scaling_mode mode = { AOME_ONETWO, AOME_ONETWO };
+ encoder->Control(AOME_SET_SCALEMODE, &mode);
+ } else if (video->frame() == 1) {
+ struct aom_scaling_mode mode = { AOME_NORMAL, AOME_NORMAL };
+ encoder->Control(AOME_SET_SCALEMODE, &mode);
+ cfg_.rc_min_quantizer = cfg_.rc_max_quantizer = new_q;
+ encoder->Config(&cfg_);
+ }
+ } else {
+ if (video->frame() >= kStepDownFrame && video->frame() < kStepUpFrame) {
+ struct aom_scaling_mode mode = { AOME_FOURFIVE, AOME_THREEFIVE };
+ encoder->Control(AOME_SET_SCALEMODE, &mode);
+ }
+ if (video->frame() >= kStepUpFrame) {
+ struct aom_scaling_mode mode = { AOME_NORMAL, AOME_NORMAL };
+ encoder->Control(AOME_SET_SCALEMODE, &mode);
+ }
+ }
+ }
+
+ void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) override {
+ if (frame0_psnr_ == 0.) frame0_psnr_ = pkt->data.psnr.psnr[0];
+ EXPECT_NEAR(pkt->data.psnr.psnr[0], frame0_psnr_, 4.1);
+ }
+
+#if WRITE_COMPRESSED_STREAM
+ void FramePktHook(const aom_codec_cx_pkt_t *pkt) override {
+ ++out_frames_;
+
+ // Write initial file header if first frame.
+ if (pkt->data.frame.pts == 0) write_ivf_file_header(&cfg_, 0, outfile_);
+
+ // Write frame header and data.
+ write_ivf_frame_header(pkt, outfile_);
+ (void)fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz, outfile_);
+ }
+#endif
+
+ double frame0_psnr_;
+ bool change_config_;
+#if WRITE_COMPRESSED_STREAM
+ FILE *outfile_;
+ unsigned int out_frames_;
+#endif
+};
+
+TEST_P(ResizeInternalTestLarge, TestInternalResizeWorks) {
+ ::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+ 30, 1, 0, 10);
+ init_flags_ = AOM_CODEC_USE_PSNR;
+ change_config_ = false;
+
+ // q picked such that initial keyframe on this clip is ~30dB PSNR
+ cfg_.rc_min_quantizer = cfg_.rc_max_quantizer = 48;
+
+ // If the number of frames being encoded is smaller than g_lag_in_frames
+ // the encoded frame is unavailable using the current API. Comparing
+ // frames to detect mismatch would then not be possible. Set
+ // g_lag_in_frames = 0 to get around this.
+ cfg_.g_lag_in_frames = 0;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ }
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ const aom_codec_pts_t pts = info->pts;
+ if (pts >= kStepDownFrame && pts < kStepUpFrame) {
+ ASSERT_EQ(282U, info->w) << "Frame " << pts << " had unexpected width";
+ ASSERT_EQ(173U, info->h) << "Frame " << pts << " had unexpected height";
+ } else {
+ EXPECT_EQ(352U, info->w) << "Frame " << pts << " had unexpected width";
+ EXPECT_EQ(288U, info->h) << "Frame " << pts << " had unexpected height";
+ }
+ }
+}
+
+TEST_P(ResizeInternalTestLarge, TestInternalResizeChangeConfig) {
+ ::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
+ 30, 1, 0, 10);
+ cfg_.g_w = 352;
+ cfg_.g_h = 288;
+ change_config_ = true;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+}
+
+AV1_INSTANTIATE_TEST_SUITE(ResizeInternalTestLarge,
+ ::testing::Values(::libaom_test::kOnePassGood));
+#endif
+
+// Parameters: test mode, speed, threads
+class ResizeRealtimeTest
+ : public ::libaom_test::CodecTestWith3Params<libaom_test::TestMode, int,
+ int>,
+ public ::libaom_test::EncoderTest {
+ protected:
+ ResizeRealtimeTest()
+ : EncoderTest(GET_PARAM(0)), num_threads_(GET_PARAM(3)),
+ set_scale_mode_(false), set_scale_mode2_(false),
+ set_scale_mode3_(false) {}
+ ~ResizeRealtimeTest() override = default;
+
+ void PreEncodeFrameHook(libaom_test::VideoSource *video,
+ libaom_test::Encoder *encoder) override {
+ if (video->frame() == 0) {
+ encoder->Control(AV1E_SET_AQ_MODE, 3);
+ encoder->Control(AV1E_SET_ALLOW_WARPED_MOTION, 0);
+ encoder->Control(AV1E_SET_ENABLE_GLOBAL_MOTION, 0);
+ encoder->Control(AV1E_SET_ENABLE_OBMC, 0);
+ encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
+ encoder->Control(AV1E_SET_FRAME_PARALLEL_DECODING, 1);
+ }
+ if (set_scale_mode_) {
+ struct aom_scaling_mode mode;
+ if (video->frame() <= 20)
+ mode = { AOME_ONETWO, AOME_ONETWO };
+ else if (video->frame() <= 40)
+ mode = { AOME_ONEFOUR, AOME_ONEFOUR };
+ else if (video->frame() > 40)
+ mode = { AOME_NORMAL, AOME_NORMAL };
+ encoder->Control(AOME_SET_SCALEMODE, &mode);
+ } else if (set_scale_mode2_) {
+ struct aom_scaling_mode mode;
+ if (video->frame() <= 20)
+ mode = { AOME_ONEFOUR, AOME_ONEFOUR };
+ else if (video->frame() <= 40)
+ mode = { AOME_ONETWO, AOME_ONETWO };
+ else if (video->frame() > 40)
+ mode = { AOME_THREEFOUR, AOME_THREEFOUR };
+ encoder->Control(AOME_SET_SCALEMODE, &mode);
+ } else if (set_scale_mode3_) {
+ struct aom_scaling_mode mode;
+ if (video->frame() <= 30)
+ mode = { AOME_ONETWO, AOME_NORMAL };
+ else
+ mode = { AOME_NORMAL, AOME_NORMAL };
+ encoder->Control(AOME_SET_SCALEMODE, &mode);
+ }
+
+ if (change_bitrate_ && video->frame() == frame_change_bitrate_) {
+ change_bitrate_ = false;
+ cfg_.rc_target_bitrate = 500;
+ encoder->Config(&cfg_);
+ }
+ }
+
+ void SetUp() override {
+ InitializeConfig(GET_PARAM(1));
+ set_cpu_used_ = GET_PARAM(2);
+ }
+
+ void DecompressedFrameHook(const aom_image_t &img,
+ aom_codec_pts_t pts) override {
+ frame_info_list_.push_back(FrameInfo(pts, img.d_w, img.d_h));
+ }
+
+ void MismatchHook(const aom_image_t *img1, const aom_image_t *img2) override {
+ double mismatch_psnr = compute_psnr(img1, img2);
+ mismatch_psnr_ += mismatch_psnr;
+ ++mismatch_nframes_;
+ }
+
+ unsigned int GetMismatchFrames() { return mismatch_nframes_; }
+
+ void DefaultConfig() {
+ cfg_.rc_buf_initial_sz = 500;
+ cfg_.rc_buf_optimal_sz = 600;
+ cfg_.rc_buf_sz = 1000;
+ cfg_.rc_min_quantizer = 2;
+ cfg_.rc_max_quantizer = 56;
+ cfg_.rc_undershoot_pct = 50;
+ cfg_.rc_overshoot_pct = 50;
+ cfg_.rc_end_usage = AOM_CBR;
+ cfg_.kf_mode = AOM_KF_AUTO;
+ cfg_.g_lag_in_frames = 0;
+ cfg_.kf_min_dist = cfg_.kf_max_dist = 3000;
+ // Enable dropped frames.
+ cfg_.rc_dropframe_thresh = 1;
+ // Disable error_resilience mode.
+ cfg_.g_error_resilient = 0;
+ cfg_.g_threads = num_threads_;
+ // Run at low bitrate.
+ cfg_.rc_target_bitrate = 200;
+ // We use max(kInitialWidth, kInitialHeight) because during the test
+ // the width and height of the frame are swapped
+ cfg_.g_forced_max_frame_width = cfg_.g_forced_max_frame_height =
+ AOMMAX(kInitialWidth, kInitialHeight);
+ if (set_scale_mode_ || set_scale_mode2_ || set_scale_mode3_) {
+ cfg_.rc_dropframe_thresh = 0;
+ cfg_.g_forced_max_frame_width = 1280;
+ cfg_.g_forced_max_frame_height = 1280;
+ }
+ }
+
+ std::vector<FrameInfo> frame_info_list_;
+ int set_cpu_used_;
+ int num_threads_;
+ bool change_bitrate_;
+ unsigned int frame_change_bitrate_;
+ double mismatch_psnr_;
+ int mismatch_nframes_;
+ bool set_scale_mode_;
+ bool set_scale_mode2_;
+ bool set_scale_mode3_;
+};
+
+// Check the AOME_SET_SCALEMODE control by downsizing to
+// 1/2, then 1/4, and then back up to originsal.
+TEST_P(ResizeRealtimeTest, TestInternalResizeSetScaleMode1) {
+ ::libaom_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 60);
+ cfg_.g_w = 1280;
+ cfg_.g_h = 720;
+ set_scale_mode_ = true;
+ set_scale_mode2_ = false;
+ set_scale_mode3_ = false;
+ DefaultConfig();
+ change_bitrate_ = false;
+ mismatch_nframes_ = 0;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ // Check we decoded the same number of frames as we attempted to encode
+ ASSERT_EQ(frame_info_list_.size(), video.limit());
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ const auto frame = static_cast<unsigned>(info->pts);
+ unsigned int expected_w = 1280 >> 1;
+ unsigned int expected_h = 720 >> 1;
+ if (frame > 40) {
+ expected_w = 1280;
+ expected_h = 720;
+ } else if (frame > 20 && frame <= 40) {
+ expected_w = 1280 >> 2;
+ expected_h = 720 >> 2;
+ }
+ EXPECT_EQ(expected_w, info->w)
+ << "Frame " << frame << " had unexpected width";
+ EXPECT_EQ(expected_h, info->h)
+ << "Frame " << frame << " had unexpected height";
+ EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
+ }
+}
+
+// Check the AOME_SET_SCALEMODE control by downsizing to
+// 1/2, then 1/4, and then back up to originsal.
+TEST_P(ResizeRealtimeTest, TestInternalResizeSetScaleMode1QVGA) {
+ ::libaom_test::I420VideoSource video("desktop1.320_180.yuv", 320, 180, 30, 1,
+ 0, 80);
+ cfg_.g_w = 320;
+ cfg_.g_h = 180;
+ set_scale_mode_ = true;
+ set_scale_mode2_ = false;
+ set_scale_mode3_ = false;
+ DefaultConfig();
+ change_bitrate_ = false;
+ mismatch_nframes_ = 0;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ // Check we decoded the same number of frames as we attempted to encode
+ ASSERT_EQ(frame_info_list_.size(), video.limit());
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ const auto frame = static_cast<unsigned>(info->pts);
+ unsigned int expected_w = 320 >> 1;
+ unsigned int expected_h = 180 >> 1;
+ if (frame > 40) {
+ expected_w = 320;
+ expected_h = 180;
+ } else if (frame > 20 && frame <= 40) {
+ expected_w = 320 >> 2;
+ expected_h = 180 >> 2;
+ }
+ EXPECT_EQ(expected_w, info->w)
+ << "Frame " << frame << " had unexpected width";
+ EXPECT_EQ(expected_h, info->h)
+ << "Frame " << frame << " had unexpected height";
+ EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
+ }
+}
+
+// Check the AOME_SET_SCALEMODE control by downsizing to
+// 1/4, then 1/2, and then up to 3/4.
+TEST_P(ResizeRealtimeTest, TestInternalResizeSetScaleMode2) {
+ ::libaom_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 60);
+ cfg_.g_w = 1280;
+ cfg_.g_h = 720;
+ set_scale_mode_ = false;
+ set_scale_mode2_ = true;
+ set_scale_mode3_ = false;
+ DefaultConfig();
+ change_bitrate_ = false;
+ mismatch_nframes_ = 0;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ // Check we decoded the same number of frames as we attempted to encode
+ ASSERT_EQ(frame_info_list_.size(), video.limit());
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ const auto frame = static_cast<unsigned>(info->pts);
+ unsigned int expected_w = 1280 >> 2;
+ unsigned int expected_h = 720 >> 2;
+ if (frame > 40) {
+ expected_w = (3 * 1280) >> 2;
+ expected_h = (3 * 720) >> 2;
+ } else if (frame > 20 && frame <= 40) {
+ expected_w = 1280 >> 1;
+ expected_h = 720 >> 1;
+ }
+ EXPECT_EQ(expected_w, info->w)
+ << "Frame " << frame << " had unexpected width";
+ EXPECT_EQ(expected_h, info->h)
+ << "Frame " << frame << " had unexpected height";
+ EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
+ }
+}
+
+// Check the AOME_SET_SCALEMODE control by downsizing to
+// 1/2 horizontally only and then back up to original.
+TEST_P(ResizeRealtimeTest, TestInternalResizeSetScaleMode3) {
+ ::libaom_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 60);
+ cfg_.g_w = 1280;
+ cfg_.g_h = 720;
+ set_scale_mode_ = false;
+ set_scale_mode2_ = false;
+ set_scale_mode3_ = true;
+ DefaultConfig();
+ change_bitrate_ = false;
+ mismatch_nframes_ = 0;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+ // Check we decoded the same number of frames as we attempted to encode
+ ASSERT_EQ(frame_info_list_.size(), video.limit());
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ const auto frame = static_cast<unsigned>(info->pts);
+ unsigned int expected_w = 640;
+ unsigned int expected_h = 720;
+ if (frame > 30) {
+ expected_w = 1280;
+ expected_h = 720;
+ }
+ EXPECT_EQ(expected_w, info->w)
+ << "Frame " << frame << " had unexpected width";
+ EXPECT_EQ(expected_h, info->h)
+ << "Frame " << frame << " had unexpected height";
+ EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
+ }
+}
+
+TEST_P(ResizeRealtimeTest, TestExternalResizeWorks) {
+ ResizingVideoSource video;
+ video.flag_codec_ = 1;
+ change_bitrate_ = false;
+ set_scale_mode_ = false;
+ set_scale_mode2_ = false;
+ set_scale_mode3_ = false;
+ mismatch_psnr_ = 0.0;
+ mismatch_nframes_ = 0;
+ DefaultConfig();
+ // Test external resizing with start resolution equal to
+ // 1. kInitialWidth and kInitialHeight
+ // 2. down-scaled kInitialWidth and kInitialHeight
+ for (int i = 0; i < 2; i++) {
+ video.change_start_resln_ = static_cast<bool>(i);
+
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ // Check we decoded the same number of frames as we attempted to encode
+ ASSERT_EQ(frame_info_list_.size(), video.limit());
+ for (const auto &info : frame_info_list_) {
+ const unsigned int frame = static_cast<unsigned>(info.pts);
+ unsigned int expected_w;
+ unsigned int expected_h;
+ ScaleForFrameNumber(frame, kInitialWidth, kInitialHeight,
+ video.flag_codec_, video.change_start_resln_,
+ &expected_w, &expected_h);
+ EXPECT_EQ(expected_w, info.w)
+ << "Frame " << frame << " had unexpected width";
+ EXPECT_EQ(expected_h, info.h)
+ << "Frame " << frame << " had unexpected height";
+ EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
+ }
+ frame_info_list_.clear();
+ }
+}
+
+// Verify the dynamic resizer behavior for real time, 1 pass CBR mode.
+// Run at low bitrate, with resize_allowed = 1, and verify that we get
+// one resize down event.
+TEST_P(ResizeRealtimeTest, TestInternalResizeDown) {
+ ::libaom_test::I420VideoSource video("niklas_640_480_30.yuv", 640, 480, 30, 1,
+ 0, 400);
+ cfg_.g_w = 640;
+ cfg_.g_h = 480;
+ change_bitrate_ = false;
+ set_scale_mode_ = false;
+ set_scale_mode2_ = false;
+ set_scale_mode3_ = false;
+ mismatch_psnr_ = 0.0;
+ mismatch_nframes_ = 0;
+ DefaultConfig();
+ // Disable dropped frames.
+ cfg_.rc_dropframe_thresh = 0;
+ // Starting bitrate low.
+ cfg_.rc_target_bitrate = 150;
+ cfg_.rc_resize_mode = RESIZE_DYNAMIC;
+ cfg_.g_forced_max_frame_width = 1280;
+ cfg_.g_forced_max_frame_height = 1280;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ unsigned int last_w = cfg_.g_w;
+ unsigned int last_h = cfg_.g_h;
+ int resize_down_count = 0;
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ if (info->w != last_w || info->h != last_h) {
+ // Verify that resize down occurs.
+ if (info->w < last_w && info->h < last_h) {
+ resize_down_count++;
+ }
+ last_w = info->w;
+ last_h = info->h;
+ }
+ }
+
+#if CONFIG_AV1_DECODER
+ // Verify that we get at lease 1 resize down event in this test.
+ ASSERT_GE(resize_down_count, 1) << "Resizing should occur.";
+ EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
+#else
+ printf("Warning: AV1 decoder unavailable, unable to check resize count!\n");
+#endif
+}
+
+// Verify the dynamic resizer behavior for real time, 1 pass CBR mode.
+// Start at low target bitrate, raise the bitrate in the middle of the clip
+// (at frame# = frame_change_bitrate_), scaling-up should occur after bitrate
+// is increased.
+TEST_P(ResizeRealtimeTest, TestInternalResizeDownUpChangeBitRate) {
+ ::libaom_test::I420VideoSource video("niklas_640_480_30.yuv", 640, 480, 30, 1,
+ 0, 400);
+ cfg_.g_w = 640;
+ cfg_.g_h = 480;
+ change_bitrate_ = true;
+ frame_change_bitrate_ = 120;
+ set_scale_mode_ = false;
+ set_scale_mode2_ = false;
+ set_scale_mode3_ = false;
+ mismatch_psnr_ = 0.0;
+ mismatch_nframes_ = 0;
+ DefaultConfig();
+ // Disable dropped frames.
+ cfg_.rc_dropframe_thresh = 0;
+ // Starting bitrate low.
+ cfg_.rc_target_bitrate = 150;
+ cfg_.rc_resize_mode = RESIZE_DYNAMIC;
+ cfg_.g_forced_max_frame_width = 1280;
+ cfg_.g_forced_max_frame_height = 1280;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ unsigned int last_w = cfg_.g_w;
+ unsigned int last_h = cfg_.g_h;
+ unsigned int frame_number = 0;
+ int resize_down_count = 0;
+ int resize_up_count = 0;
+ for (std::vector<FrameInfo>::const_iterator info = frame_info_list_.begin();
+ info != frame_info_list_.end(); ++info) {
+ if (info->w != last_w || info->h != last_h) {
+ if (frame_number < frame_change_bitrate_) {
+ // Verify that resize down occurs, before bitrate is increased.
+ ASSERT_LT(info->w, last_w);
+ ASSERT_LT(info->h, last_h);
+ resize_down_count++;
+ } else {
+ // Verify that resize up occurs, after bitrate is increased.
+ ASSERT_GT(info->w, last_w);
+ ASSERT_GT(info->h, last_h);
+ resize_up_count++;
+ }
+ last_w = info->w;
+ last_h = info->h;
+ }
+ frame_number++;
+ }
+
+#if CONFIG_AV1_DECODER
+ // Verify that we get at least 2 resize events in this test.
+ ASSERT_GE(resize_up_count, 1) << "Resizing up should occur at lease once.";
+ ASSERT_GE(resize_down_count, 1)
+ << "Resizing down should occur at lease once.";
+ EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
+#else
+ printf("Warning: AV1 decoder unavailable, unable to check resize count!\n");
+#endif
+}
+
+class ResizeCspTest : public ResizeTest {
+ protected:
+#if WRITE_COMPRESSED_STREAM
+ ResizeCspTest()
+ : ResizeTest(), frame0_psnr_(0.0), outfile_(nullptr), out_frames_(0) {}
+#else
+ ResizeCspTest() : ResizeTest(), frame0_psnr_(0.0) {}
+#endif
+
+ ~ResizeCspTest() override = default;
+
+ void BeginPassHook(unsigned int /*pass*/) override {
+#if WRITE_COMPRESSED_STREAM
+ outfile_ = fopen("av11-2-05-cspchape.ivf", "wb");
+#endif
+ }
+
+ void EndPassHook() override {
+#if WRITE_COMPRESSED_STREAM
+ if (outfile_) {
+ if (!fseek(outfile_, 0, SEEK_SET))
+ write_ivf_file_header(&cfg_, out_frames_, outfile_);
+ fclose(outfile_);
+ outfile_ = nullptr;
+ }
+#endif
+ }
+
+ void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) override {
+ if (frame0_psnr_ == 0.) frame0_psnr_ = pkt->data.psnr.psnr[0];
+ EXPECT_NEAR(pkt->data.psnr.psnr[0], frame0_psnr_, 2.0);
+ }
+
+#if WRITE_COMPRESSED_STREAM
+ void FramePktHook(const aom_codec_cx_pkt_t *pkt) override {
+ ++out_frames_;
+
+ // Write initial file header if first frame.
+ if (pkt->data.frame.pts == 0) write_ivf_file_header(&cfg_, 0, outfile_);
+
+ // Write frame header and data.
+ write_ivf_frame_header(pkt, outfile_);
+ (void)fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz, outfile_);
+ }
+#endif
+
+ double frame0_psnr_;
+#if WRITE_COMPRESSED_STREAM
+ FILE *outfile_;
+ unsigned int out_frames_;
+#endif
+};
+
+class ResizingCspVideoSource : public ::libaom_test::DummyVideoSource {
+ public:
+ explicit ResizingCspVideoSource(aom_img_fmt_t image_format) {
+ SetSize(kInitialWidth, kInitialHeight);
+ SetImageFormat(image_format);
+ limit_ = 30;
+ }
+
+ ~ResizingCspVideoSource() override = default;
+};
+
+#if (defined(DISABLE_TRELLISQ_SEARCH) && DISABLE_TRELLISQ_SEARCH) || \
+ (defined(CONFIG_MAX_DECODE_PROFILE) && CONFIG_MAX_DECODE_PROFILE < 1)
+TEST_P(ResizeCspTest, DISABLED_TestResizeCspWorks) {
+#else
+TEST_P(ResizeCspTest, TestResizeCspWorks) {
+#endif
+ const aom_img_fmt_t image_formats[] = { AOM_IMG_FMT_I420, AOM_IMG_FMT_I444 };
+ for (const aom_img_fmt_t &img_format : image_formats) {
+ ResizingCspVideoSource video(img_format);
+ init_flags_ = AOM_CODEC_USE_PSNR;
+ cfg_.rc_min_quantizer = cfg_.rc_max_quantizer = 48;
+ cfg_.g_lag_in_frames = 0;
+ cfg_.g_profile = (img_format == AOM_IMG_FMT_I420) ? 0 : 1;
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+
+ // Check we decoded the same number of frames as we attempted to encode
+ ASSERT_EQ(frame_info_list_.size(), video.limit());
+ frame_info_list_.clear();
+ }
+}
+
+#if !CONFIG_REALTIME_ONLY
+// This class is used to check if there are any fatal
+// failures while encoding with resize-mode > 0
+class ResizeModeTestLarge
+ : public ::libaom_test::CodecTestWith5Params<libaom_test::TestMode, int,
+ int, int, int>,
+ public ::libaom_test::EncoderTest {
+ protected:
+ ResizeModeTestLarge()
+ : EncoderTest(GET_PARAM(0)), encoding_mode_(GET_PARAM(1)),
+ resize_mode_(GET_PARAM(2)), resize_denominator_(GET_PARAM(3)),
+ resize_kf_denominator_(GET_PARAM(4)), cpu_used_(GET_PARAM(5)) {}
+ ~ResizeModeTestLarge() override = default;
+
+ void SetUp() override {
+ InitializeConfig(encoding_mode_);
+ const aom_rational timebase = { 1, 30 };
+ cfg_.g_timebase = timebase;
+ cfg_.rc_end_usage = AOM_VBR;
+ cfg_.g_threads = 1;
+ cfg_.g_lag_in_frames = 35;
+ cfg_.rc_target_bitrate = 1000;
+ cfg_.rc_resize_mode = resize_mode_;
+ cfg_.rc_resize_denominator = resize_denominator_;
+ cfg_.rc_resize_kf_denominator = resize_kf_denominator_;
+ init_flags_ = AOM_CODEC_USE_PSNR;
+ }
+
+ void PreEncodeFrameHook(::libaom_test::VideoSource *video,
+ ::libaom_test::Encoder *encoder) override {
+ if (video->frame() == 0) {
+ encoder->Control(AOME_SET_CPUUSED, cpu_used_);
+ encoder->Control(AOME_SET_ENABLEAUTOALTREF, 1);
+ }
+ }
+
+ ::libaom_test::TestMode encoding_mode_;
+ int resize_mode_;
+ int resize_denominator_;
+ int resize_kf_denominator_;
+ int cpu_used_;
+};
+
+TEST_P(ResizeModeTestLarge, ResizeModeTest) {
+ ::libaom_test::Y4mVideoSource video("niklas_1280_720_30.y4m", 0, 30);
+ ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
+}
+
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(ResizeModeTestLarge);
+AV1_INSTANTIATE_TEST_SUITE(ResizeModeTestLarge,
+ ::testing::Values(::libaom_test::kOnePassGood,
+ ::libaom_test::kTwoPassGood),
+ ::testing::Values(1, 2), ::testing::Values(8, 12),
+ ::testing::Values(10, 14), ::testing::Values(3, 6));
+#endif // !CONFIG_REALTIME_ONLY
+
+AV1_INSTANTIATE_TEST_SUITE(ResizeTest,
+ ::testing::Values(::libaom_test::kRealTime));
+AV1_INSTANTIATE_TEST_SUITE(ResizeRealtimeTest,
+ ::testing::Values(::libaom_test::kRealTime),
+ ::testing::Range(6, 10), ::testing::Values(1, 2, 4));
+AV1_INSTANTIATE_TEST_SUITE(ResizeCspTest,
+ ::testing::Values(::libaom_test::kRealTime));
+
+// A test that reproduces crbug.com/1393384. In realtime usage mode, encode
+// frames of sizes 202x202, 1x202, and 202x202. ASan should report no memory
+// errors.
+TEST(ResizeSimpleTest, TemporarySmallerFrameSize) {
+ constexpr int kWidth = 202;
+ constexpr int kHeight = 202;
+ // Dummy buffer of zero samples.
+ constexpr size_t kBufferSize =
+ kWidth * kHeight + 2 * (kWidth + 1) / 2 * (kHeight + 1) / 2;
+ std::vector<unsigned char> buffer(kBufferSize);
+
+ aom_image_t img;
+ EXPECT_EQ(&img, aom_img_wrap(&img, AOM_IMG_FMT_I420, kWidth, kHeight, 1,
+ buffer.data()));
+ aom_image_t img2;
+ EXPECT_EQ(&img2, aom_img_wrap(&img2, AOM_IMG_FMT_I420, 1, kHeight, 1,
+ buffer.data()));
+
+ aom_codec_iface_t *iface = aom_codec_av1_cx();
+ aom_codec_enc_cfg_t cfg;
+ EXPECT_EQ(AOM_CODEC_OK,
+ aom_codec_enc_config_default(iface, &cfg, AOM_USAGE_REALTIME));
+ cfg.g_w = kWidth;
+ cfg.g_h = kHeight;
+ aom_codec_ctx_t enc;
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_init(&enc, iface, &cfg, 0));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_control(&enc, AOME_SET_CPUUSED, 5));
+
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img, 0, 1, 0));
+
+ cfg.g_w = 1;
+ cfg.g_h = kHeight;
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_config_set(&enc, &cfg));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img2, 1, 1, 0));
+
+ cfg.g_w = kWidth;
+ cfg.g_h = kHeight;
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_config_set(&enc, &cfg));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img, 2, 1, 0));
+
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, nullptr, 0, 0, 0));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_destroy(&enc));
+}
+
+// A test that reproduces crbug.com/1410766. In realtime usage mode
+// for SVC with temporal layers, encode frames of sizes 600x600,
+// 600x600, and 100x480. ASan should report no memory errors.
+TEST(ResizeSimpleTest, SmallerFrameSizeSVC) {
+ constexpr int kWidth = 600;
+ constexpr int kHeight = 600;
+ // Dummy buffer of zero samples.
+ constexpr size_t kBufferSize =
+ kWidth * kHeight + 2 * (kWidth + 1) / 2 * (kHeight + 1) / 2;
+ std::vector<unsigned char> buffer(kBufferSize);
+
+ aom_image_t img;
+ EXPECT_EQ(&img, aom_img_wrap(&img, AOM_IMG_FMT_I420, kWidth, kHeight, 1,
+ buffer.data()));
+ aom_image_t img2;
+ EXPECT_EQ(&img2,
+ aom_img_wrap(&img2, AOM_IMG_FMT_I420, 100, 480, 1, buffer.data()));
+
+ aom_codec_iface_t *iface = aom_codec_av1_cx();
+ aom_codec_enc_cfg_t cfg;
+ EXPECT_EQ(AOM_CODEC_OK,
+ aom_codec_enc_config_default(iface, &cfg, AOM_USAGE_REALTIME));
+ cfg.g_w = kWidth;
+ cfg.g_h = kHeight;
+ aom_codec_ctx_t enc;
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_init(&enc, iface, &cfg, 0));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_control(&enc, AOME_SET_CPUUSED, 5));
+
+ aom_svc_params_t svc_params = {};
+ aom_svc_layer_id_t layer_id;
+ svc_params.number_spatial_layers = 1;
+ svc_params.framerate_factor[0] = 2;
+ svc_params.framerate_factor[1] = 1;
+ svc_params.number_temporal_layers = 2;
+ // Bitrate allocation L0: 60% L1: 40%
+ svc_params.layer_target_bitrate[0] = 60 * cfg.rc_target_bitrate / 100;
+ svc_params.layer_target_bitrate[1] = cfg.rc_target_bitrate;
+ EXPECT_EQ(AOM_CODEC_OK,
+ aom_codec_control(&enc, AV1E_SET_SVC_PARAMS, &svc_params));
+
+ layer_id.spatial_layer_id = 0;
+ layer_id.temporal_layer_id = 0;
+ EXPECT_EQ(AOM_CODEC_OK,
+ aom_codec_control(&enc, AV1E_SET_SVC_LAYER_ID, &layer_id));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img, 0, 1, 0));
+
+ cfg.g_w = kWidth;
+ cfg.g_h = kHeight;
+ layer_id.temporal_layer_id = 1;
+ EXPECT_EQ(AOM_CODEC_OK,
+ aom_codec_control(&enc, AV1E_SET_SVC_LAYER_ID, &layer_id));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_config_set(&enc, &cfg));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img, 1, 1, 0));
+
+ cfg.g_w = 100;
+ cfg.g_h = 480;
+ layer_id.temporal_layer_id = 0;
+ EXPECT_EQ(AOM_CODEC_OK,
+ aom_codec_control(&enc, AV1E_SET_SVC_LAYER_ID, &layer_id));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_config_set(&enc, &cfg));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img2, 2, 1, 0));
+
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, nullptr, 0, 0, 0));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_destroy(&enc));
+}
+
+const int kUsages[] =
+#if CONFIG_REALTIME_ONLY
+ { AOM_USAGE_REALTIME };
+#else
+ { AOM_USAGE_GOOD_QUALITY, AOM_USAGE_REALTIME, AOM_USAGE_ALL_INTRA };
+#endif
+
+const int kNumThreads[] = { 2, 4, 8 };
+
+class FrameSizeChangeTest
+ : public ::libaom_test::CodecTestWith3Params<int, int, int> {
+ protected:
+ FrameSizeChangeTest() {}
+ ~FrameSizeChangeTest() override = default;
+
+ void DoTest(int change_thread) {
+ usage_ = GET_PARAM(1);
+ cpu_used_ = GET_PARAM(2);
+ threads_ = GET_PARAM(3);
+ constexpr int kWidth = 512;
+ constexpr int kHeight = 512;
+ constexpr int kFirstWidth = 256;
+ constexpr int kFirstHeight = 256;
+ // Buffer of zero samples.
+ constexpr size_t kBufferSize = 3 * kWidth * kHeight;
+ std::vector<unsigned char> buffer(kBufferSize,
+ static_cast<unsigned char>(0));
+
+ aom_image_t img1;
+ EXPECT_EQ(&img1, aom_img_wrap(&img1, AOM_IMG_FMT_I420, kFirstWidth,
+ kFirstHeight, 1, buffer.data()));
+
+ aom_image_t img2;
+ EXPECT_EQ(&img2, aom_img_wrap(&img2, AOM_IMG_FMT_I420, kWidth, kHeight, 1,
+ buffer.data()));
+
+ aom_codec_iface_t *iface = aom_codec_av1_cx();
+ aom_codec_enc_cfg_t cfg;
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_config_default(iface, &cfg, usage_));
+ cfg.g_threads = threads_;
+ cfg.g_lag_in_frames = usage_ == AOM_USAGE_ALL_INTRA ? 0 : 1;
+ cfg.g_w = kFirstWidth;
+ cfg.g_h = kFirstHeight;
+ cfg.g_forced_max_frame_width = kWidth;
+ cfg.g_forced_max_frame_height = kHeight;
+ aom_codec_ctx_t enc;
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_init(&enc, iface, &cfg, 0));
+ EXPECT_EQ(AOM_CODEC_OK,
+ aom_codec_control(&enc, AOME_SET_CPUUSED, cpu_used_));
+
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img1, 0, 1, 0));
+
+ if (change_thread == 1) {
+ cfg.g_threads = AOMMAX(1, threads_ / 2);
+ } else if (change_thread == 2) {
+ cfg.g_threads = threads_ * 2;
+ }
+ cfg.g_w = kWidth;
+ cfg.g_h = kHeight;
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_enc_config_set(&enc, &cfg));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, &img2, 1, 1, 0));
+
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_encode(&enc, nullptr, 0, 0, 0));
+ EXPECT_EQ(AOM_CODEC_OK, aom_codec_destroy(&enc));
+ }
+
+ int cpu_used_;
+ int threads_;
+ int usage_;
+};
+
+TEST_P(FrameSizeChangeTest, FixedThreads) { DoTest(0); }
+TEST_P(FrameSizeChangeTest, DecreasingThreads) { DoTest(1); }
+TEST_P(FrameSizeChangeTest, IncreasingThreads) { DoTest(2); }
+
+AV1_INSTANTIATE_TEST_SUITE(FrameSizeChangeTest, ::testing::ValuesIn(kUsages),
+ ::testing::Range(6, 7),
+ ::testing::ValuesIn(kNumThreads));
+
+} // namespace