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aom/test/resize_test.cc

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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 "third_party/googletest/src/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"
// 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, const unsigned int val) {
mem[0] = val;
mem[1] = val >> 8;
}
static void mem_put_le32(char *const mem, const 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, 0x30395056); /* 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, unsigned int *w,
unsigned int *h, int flag_codec) {
if (frame < 10) {
*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;
}
if (frame < 120) {
*w = initial_w * 3 / 4;
*h = initial_h * 3 / 4;
return;
}
if (frame < 130) {
*w = initial_w / 2;
*h = initial_h / 2;
return;
}
if (frame < 140) {
*w = initial_w * 3 / 4;
*h = initial_h * 3 / 4;
return;
}
if (frame < 150) {
*w = initial_w;
*h = initial_h;
return;
}
if (frame < 160) {
*w = initial_w * 3 / 4;
*h = initial_h * 3 / 4;
return;
}
if (frame < 170) {
*w = initial_w / 2;
*h = initial_h / 2;
return;
}
if (frame < 180) {
*w = initial_w * 3 / 4;
*h = initial_h * 3 / 4;
return;
}
if (frame < 190) {
*w = initial_w;
*h = initial_h;
return;
}
if (frame < 200) {
*w = initial_w * 3 / 4;
*h = initial_h * 3 / 4;
return;
}
if (frame < 210) {
*w = initial_w / 2;
*h = initial_h / 2;
return;
}
if (frame < 220) {
*w = initial_w * 3 / 4;
*h = initial_h * 3 / 4;
return;
}
if (frame < 230) {
*w = initial_w;
*h = initial_h;
return;
}
if (frame < 240) {
*w = initial_w * 3 / 4;
*h = initial_h * 3 / 4;
return;
}
if (frame < 250) {
*w = initial_w / 2;
*h = initial_h / 2;
return;
}
if (frame < 260) {
*w = initial_w;
*h = initial_h;
return;
}
// Go down very low.
if (frame < 270) {
*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 < 320) {
*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_ = 350;
}
int flag_codec_;
virtual ~ResizingVideoSource() {}
protected:
virtual void Next() {
++frame_;
unsigned int width;
unsigned int height;
ScaleForFrameNumber(frame_, kInitialWidth, kInitialHeight, &width, &height,
flag_codec_);
SetSize(width, height);
FillFrame();
}
};
class ResizeTest
: public ::libaom_test::EncoderTest,
public ::libaom_test::CodecTestWithParam<libaom_test::TestMode> {
protected:
ResizeTest() : EncoderTest(GET_PARAM(0)) {}
virtual ~ResizeTest() {}
virtual void SetUp() {
InitializeConfig();
SetMode(GET_PARAM(1));
}
virtual void DecompressedFrameHook(const aom_image_t &img,
aom_codec_pts_t pts) {
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;
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) {
const unsigned int frame = static_cast<unsigned>(info->pts);
unsigned int expected_w;
unsigned int expected_h;
ScaleForFrameNumber(frame, kInitialWidth, kInitialHeight, &expected_w,
&expected_h, 0);
EXPECT_EQ(expected_w, info->w) << "Frame " << frame
<< " had unexpected width";
EXPECT_EQ(expected_h, info->h) << "Frame " << frame
<< " had unexpected height";
}
}
const unsigned int kStepDownFrame = 3;
const unsigned int kStepUpFrame = 6;
class ResizeInternalTest : public ResizeTest {
protected:
#if WRITE_COMPRESSED_STREAM
ResizeInternalTest()
: ResizeTest(), frame0_psnr_(0.0), outfile_(NULL), out_frames_(0) {}
#else
ResizeInternalTest() : ResizeTest(), frame0_psnr_(0.0) {}
#endif
virtual ~ResizeInternalTest() {}
virtual void BeginPassHook(unsigned int /*pass*/) {
#if WRITE_COMPRESSED_STREAM
outfile_ = fopen("av10-2-05-resize.ivf", "wb");
#endif
}
virtual void EndPassHook() {
#if WRITE_COMPRESSED_STREAM
if (outfile_) {
if (!fseek(outfile_, 0, SEEK_SET))
write_ivf_file_header(&cfg_, out_frames_, outfile_);
fclose(outfile_);
outfile_ = NULL;
}
#endif
}
virtual void PreEncodeFrameHook(libaom_test::VideoSource *video,
libaom_test::Encoder *encoder) {
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);
}
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) {
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);
}
}
}
virtual void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) {
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
virtual void FramePktHook(const aom_codec_cx_pkt_t *pkt) {
++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(ResizeInternalTest, 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) {
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(ResizeInternalTest, 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));
}
class ResizeRealtimeTest
: public ::libaom_test::EncoderTest,
public ::libaom_test::CodecTestWith2Params<libaom_test::TestMode, int> {
protected:
ResizeRealtimeTest() : EncoderTest(GET_PARAM(0)) {}
virtual ~ResizeRealtimeTest() {}
virtual void PreEncodeFrameHook(libaom_test::VideoSource *video,
libaom_test::Encoder *encoder) {
if (video->frame() == 0) {
encoder->Control(AV1E_SET_AQ_MODE, 3);
encoder->Control(AOME_SET_CPUUSED, set_cpu_used_);
}
if (change_bitrate_ && video->frame() == 120) {
change_bitrate_ = false;
cfg_.rc_target_bitrate = 500;
encoder->Config(&cfg_);
}
}
virtual void SetUp() {
InitializeConfig();
SetMode(GET_PARAM(1));
set_cpu_used_ = GET_PARAM(2);
}
virtual void DecompressedFrameHook(const aom_image_t &img,
aom_codec_pts_t pts) {
frame_info_list_.push_back(FrameInfo(pts, img.d_w, img.d_h));
}
virtual void MismatchHook(const aom_image_t *img1, const aom_image_t *img2) {
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;
// Enable error_resilience mode.
cfg_.g_error_resilient = 1;
// Enable dynamic resizing.
cfg_.rc_resize_allowed = 1;
// Run at low bitrate.
cfg_.rc_target_bitrate = 200;
}
std::vector<FrameInfo> frame_info_list_;
int set_cpu_used_;
bool change_bitrate_;
double mismatch_psnr_;
int mismatch_nframes_;
};
TEST_P(ResizeRealtimeTest, TestExternalResizeWorks) {
ResizingVideoSource video;
video.flag_codec_ = 1;
DefaultConfig();
// Disable internal resize for this test.
cfg_.rc_resize_allowed = 0;
change_bitrate_ = false;
mismatch_psnr_ = 0.0;
mismatch_nframes_ = 0;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
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, &expected_w,
&expected_h, 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());
}
}
// 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("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 299);
DefaultConfig();
cfg_.g_w = 352;
cfg_.g_h = 288;
change_bitrate_ = false;
mismatch_psnr_ = 0.0;
mismatch_nframes_ = 0;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
unsigned int last_w = cfg_.g_w;
unsigned int last_h = cfg_.g_h;
int resize_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.
ASSERT_LT(info->w, last_w);
ASSERT_LT(info->h, last_h);
last_w = info->w;
last_h = info->h;
resize_count++;
}
}
#if CONFIG_AV1_DECODER
// Verify that we get 1 resize down event in this test.
ASSERT_EQ(1, resize_count) << "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,
// scaling-up should occur after bitrate changed.
TEST_P(ResizeRealtimeTest, TestInternalResizeDownUpChangeBitRate) {
::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 359);
DefaultConfig();
cfg_.g_w = 352;
cfg_.g_h = 288;
change_bitrate_ = true;
mismatch_psnr_ = 0.0;
mismatch_nframes_ = 0;
// Disable dropped frames.
cfg_.rc_dropframe_thresh = 0;
// Starting bitrate low.
cfg_.rc_target_bitrate = 80;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
unsigned int last_w = cfg_.g_w;
unsigned int last_h = cfg_.g_h;
int resize_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) {
resize_count++;
if (resize_count == 1) {
// Verify that resize down occurs.
ASSERT_LT(info->w, last_w);
ASSERT_LT(info->h, last_h);
} else if (resize_count == 2) {
// Verify that resize up occurs.
ASSERT_GT(info->w, last_w);
ASSERT_GT(info->h, last_h);
}
last_w = info->w;
last_h = info->h;
}
}
#if CONFIG_AV1_DECODER
// Verify that we get 2 resize events in this test.
ASSERT_EQ(resize_count, 2) << "Resizing should occur twice.";
EXPECT_EQ(static_cast<unsigned int>(0), GetMismatchFrames());
#else
printf("Warning: AV1 decoder unavailable, unable to check resize count!\n");
#endif
}
aom_img_fmt_t CspForFrameNumber(int frame) {
if (frame < 10) return AOM_IMG_FMT_I420;
if (frame < 20) return AOM_IMG_FMT_I444;
return AOM_IMG_FMT_I420;
}
class ResizeCspTest : public ResizeTest {
protected:
#if WRITE_COMPRESSED_STREAM
ResizeCspTest()
: ResizeTest(), frame0_psnr_(0.0), outfile_(NULL), out_frames_(0) {}
#else
ResizeCspTest() : ResizeTest(), frame0_psnr_(0.0) {}
#endif
virtual ~ResizeCspTest() {}
virtual void BeginPassHook(unsigned int /*pass*/) {
#if WRITE_COMPRESSED_STREAM
outfile_ = fopen("av11-2-05-cspchape.ivf", "wb");
#endif
}
virtual void EndPassHook() {
#if WRITE_COMPRESSED_STREAM
if (outfile_) {
if (!fseek(outfile_, 0, SEEK_SET))
write_ivf_file_header(&cfg_, out_frames_, outfile_);
fclose(outfile_);
outfile_ = NULL;
}
#endif
}
virtual void PreEncodeFrameHook(libaom_test::VideoSource *video,
libaom_test::Encoder *encoder) {
if (CspForFrameNumber(video->frame()) != AOM_IMG_FMT_I420 &&
cfg_.g_profile != 1) {
cfg_.g_profile = 1;
encoder->Config(&cfg_);
}
if (CspForFrameNumber(video->frame()) == AOM_IMG_FMT_I420 &&
cfg_.g_profile != 0) {
cfg_.g_profile = 0;
encoder->Config(&cfg_);
}
}
virtual void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) {
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
virtual void FramePktHook(const aom_codec_cx_pkt_t *pkt) {
++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:
ResizingCspVideoSource() {
SetSize(kInitialWidth, kInitialHeight);
limit_ = 30;
}
virtual ~ResizingCspVideoSource() {}
protected:
virtual void Next() {
++frame_;
SetImageFormat(CspForFrameNumber(frame_));
FillFrame();
}
};
TEST_P(ResizeCspTest, TestResizeCspWorks) {
ResizingCspVideoSource video;
init_flags_ = AOM_CODEC_USE_PSNR;
cfg_.rc_min_quantizer = cfg_.rc_max_quantizer = 48;
cfg_.g_lag_in_frames = 0;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
}
AV1_INSTANTIATE_TEST_CASE(ResizeTest,
::testing::Values(::libaom_test::kRealTime));
AV1_INSTANTIATE_TEST_CASE(ResizeInternalTest,
::testing::Values(::libaom_test::kOnePassBest));
AV1_INSTANTIATE_TEST_CASE(ResizeRealtimeTest,
::testing::Values(::libaom_test::kRealTime),
::testing::Range(5, 9));
AV1_INSTANTIATE_TEST_CASE(ResizeCspTest,
::testing::Values(::libaom_test::kRealTime));
} // namespace
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