ref: b8d86733e9d9c58e17028720751f96dad2df7a09
dir: /test/vp8_datarate_test.cc/
/*
* Copyright (c) 2012 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 "./vpx_config.h"
#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/util.h"
#include "test/y4m_video_source.h"
#include "vpx/vpx_codec.h"
namespace {
class DatarateTestLarge
: public ::libvpx_test::EncoderTest,
public ::libvpx_test::CodecTestWith2Params<libvpx_test::TestMode, int> {
public:
DatarateTestLarge() : EncoderTest(GET_PARAM(0)) {}
virtual ~DatarateTestLarge() {}
protected:
virtual void SetUp() {
InitializeConfig();
SetMode(GET_PARAM(1));
set_cpu_used_ = GET_PARAM(2);
ResetModel();
}
virtual void ResetModel() {
last_pts_ = 0;
bits_in_buffer_model_ = cfg_.rc_target_bitrate * cfg_.rc_buf_initial_sz;
frame_number_ = 0;
first_drop_ = 0;
bits_total_ = 0;
duration_ = 0.0;
denoiser_offon_test_ = 0;
denoiser_offon_period_ = -1;
gf_boost_ = 0;
use_roi_ = false;
}
virtual void PreEncodeFrameHook(::libvpx_test::VideoSource *video,
::libvpx_test::Encoder *encoder) {
if (video->frame() == 0) {
encoder->Control(VP8E_SET_NOISE_SENSITIVITY, denoiser_on_);
encoder->Control(VP8E_SET_CPUUSED, set_cpu_used_);
encoder->Control(VP8E_SET_GF_CBR_BOOST_PCT, gf_boost_);
}
if (use_roi_) {
encoder->Control(VP8E_SET_ROI_MAP, &roi_);
}
if (denoiser_offon_test_) {
ASSERT_GT(denoiser_offon_period_, 0)
<< "denoiser_offon_period_ is not positive.";
if ((video->frame() + 1) % denoiser_offon_period_ == 0) {
// Flip denoiser_on_ periodically
denoiser_on_ ^= 1;
}
encoder->Control(VP8E_SET_NOISE_SENSITIVITY, denoiser_on_);
}
const vpx_rational_t tb = video->timebase();
timebase_ = static_cast<double>(tb.num) / tb.den;
duration_ = 0;
}
virtual void FramePktHook(const vpx_codec_cx_pkt_t *pkt) {
// Time since last timestamp = duration.
vpx_codec_pts_t duration = pkt->data.frame.pts - last_pts_;
// TODO(jimbankoski): Remove these lines when the issue:
// http://code.google.com/p/webm/issues/detail?id=496 is fixed.
// For now the codec assumes buffer starts at starting buffer rate
// plus one frame's time.
if (last_pts_ == 0) duration = 1;
// Add to the buffer the bits we'd expect from a constant bitrate server.
bits_in_buffer_model_ += static_cast<int64_t>(
duration * timebase_ * cfg_.rc_target_bitrate * 1000);
/* Test the buffer model here before subtracting the frame. Do so because
* the way the leaky bucket model works in libvpx is to allow the buffer to
* empty - and then stop showing frames until we've got enough bits to
* show one. As noted in comment below (issue 495), this does not currently
* apply to key frames. For now exclude key frames in condition below. */
const bool key_frame =
(pkt->data.frame.flags & VPX_FRAME_IS_KEY) ? true : false;
if (!key_frame) {
ASSERT_GE(bits_in_buffer_model_, 0)
<< "Buffer Underrun at frame " << pkt->data.frame.pts;
}
const int64_t frame_size_in_bits = pkt->data.frame.sz * 8;
// Subtract from the buffer the bits associated with a played back frame.
bits_in_buffer_model_ -= frame_size_in_bits;
// Update the running total of bits for end of test datarate checks.
bits_total_ += frame_size_in_bits;
// If first drop not set and we have a drop set it to this time.
if (!first_drop_ && duration > 1) first_drop_ = last_pts_ + 1;
// Update the most recent pts.
last_pts_ = pkt->data.frame.pts;
// We update this so that we can calculate the datarate minus the last
// frame encoded in the file.
bits_in_last_frame_ = frame_size_in_bits;
++frame_number_;
}
virtual void EndPassHook(void) {
if (bits_total_) {
const double file_size_in_kb = bits_total_ / 1000.; // bits per kilobit
duration_ = (last_pts_ + 1) * timebase_;
// Effective file datarate includes the time spent prebuffering.
effective_datarate_ = (bits_total_ - bits_in_last_frame_) / 1000.0 /
(cfg_.rc_buf_initial_sz / 1000.0 + duration_);
file_datarate_ = file_size_in_kb / duration_;
}
}
virtual void DenoiserLevelsTest() {
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_dropframe_thresh = 1;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
288, 30, 1, 0, 140);
for (int j = 1; j < 5; ++j) {
// Run over the denoiser levels.
// For the temporal denoiser (#if CONFIG_TEMPORAL_DENOISING) the level j
// refers to the 4 denoiser modes: denoiserYonly, denoiserOnYUV,
// denoiserOnAggressive, and denoiserOnAdaptive.
denoiser_on_ = j;
cfg_.rc_target_bitrate = 300;
ResetModel();
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
<< " The datarate for the file exceeds the target!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
<< " The datarate for the file missed the target!";
}
}
virtual void DenoiserOffOnTest() {
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_dropframe_thresh = 1;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
288, 30, 1, 0, 299);
cfg_.rc_target_bitrate = 300;
ResetModel();
// The denoiser is off by default.
denoiser_on_ = 0;
// Set the offon test flag.
denoiser_offon_test_ = 1;
denoiser_offon_period_ = 100;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
<< " The datarate for the file exceeds the target!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
<< " The datarate for the file missed the target!";
}
virtual void BasicBufferModelTest() {
denoiser_on_ = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_dropframe_thresh = 1;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
// 2 pass cbr datarate control has a bug hidden by the small # of
// frames selected in this encode. The problem is that even if the buffer is
// negative we produce a keyframe on a cutscene. Ignoring datarate
// constraints
// TODO(jimbankoski): ( Fix when issue
// http://code.google.com/p/webm/issues/detail?id=495 is addressed. )
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
288, 30, 1, 0, 140);
// There is an issue for low bitrates in real-time mode, where the
// effective_datarate slightly overshoots the target bitrate.
// This is same the issue as noted about (#495).
// TODO(jimbankoski/marpan): Update test to run for lower bitrates (< 100),
// when the issue is resolved.
for (int i = 100; i < 800; i += 200) {
cfg_.rc_target_bitrate = i;
ResetModel();
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
<< " The datarate for the file exceeds the target!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
<< " The datarate for the file missed the target!";
}
}
virtual void ChangingDropFrameThreshTest() {
denoiser_on_ = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_max_quantizer = 36;
cfg_.rc_end_usage = VPX_CBR;
cfg_.rc_target_bitrate = 200;
cfg_.kf_mode = VPX_KF_DISABLED;
const int frame_count = 40;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
288, 30, 1, 0, frame_count);
// Here we check that the first dropped frame gets earlier and earlier
// as the drop frame threshold is increased.
const int kDropFrameThreshTestStep = 30;
vpx_codec_pts_t last_drop = frame_count;
for (int i = 1; i < 91; i += kDropFrameThreshTestStep) {
cfg_.rc_dropframe_thresh = i;
ResetModel();
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_LE(first_drop_, last_drop)
<< " The first dropped frame for drop_thresh " << i
<< " > first dropped frame for drop_thresh "
<< i - kDropFrameThreshTestStep;
last_drop = first_drop_;
}
}
virtual void DropFramesMultiThreadsTest() {
denoiser_on_ = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_dropframe_thresh = 30;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
cfg_.g_threads = 2;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
288, 30, 1, 0, 140);
cfg_.rc_target_bitrate = 200;
ResetModel();
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
<< " The datarate for the file exceeds the target!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
<< " The datarate for the file missed the target!";
}
vpx_codec_pts_t last_pts_;
int64_t bits_in_buffer_model_;
double timebase_;
int frame_number_;
vpx_codec_pts_t first_drop_;
int64_t bits_total_;
double duration_;
double file_datarate_;
double effective_datarate_;
int64_t bits_in_last_frame_;
int denoiser_on_;
int denoiser_offon_test_;
int denoiser_offon_period_;
int set_cpu_used_;
int gf_boost_;
bool use_roi_;
vpx_roi_map_t roi_;
};
#if CONFIG_TEMPORAL_DENOISING
// Check basic datarate targeting, for a single bitrate, but loop over the
// various denoiser settings.
TEST_P(DatarateTestLarge, DenoiserLevels) { DenoiserLevelsTest(); }
// Check basic datarate targeting, for a single bitrate, when denoiser is off
// and on.
TEST_P(DatarateTestLarge, DenoiserOffOn) { DenoiserOffOnTest(); }
#endif // CONFIG_TEMPORAL_DENOISING
TEST_P(DatarateTestLarge, BasicBufferModel) { BasicBufferModelTest(); }
TEST_P(DatarateTestLarge, ChangingDropFrameThresh) {
ChangingDropFrameThreshTest();
}
TEST_P(DatarateTestLarge, DropFramesMultiThreads) {
DropFramesMultiThreadsTest();
}
class DatarateTestRealTime : public DatarateTestLarge {
public:
virtual ~DatarateTestRealTime() {}
};
#if CONFIG_TEMPORAL_DENOISING
// Check basic datarate targeting, for a single bitrate, but loop over the
// various denoiser settings.
TEST_P(DatarateTestRealTime, DenoiserLevels) { DenoiserLevelsTest(); }
// Check basic datarate targeting, for a single bitrate, when denoiser is off
// and on.
TEST_P(DatarateTestRealTime, DenoiserOffOn) {}
#endif // CONFIG_TEMPORAL_DENOISING
TEST_P(DatarateTestRealTime, BasicBufferModel) { BasicBufferModelTest(); }
TEST_P(DatarateTestRealTime, ChangingDropFrameThresh) {
ChangingDropFrameThreshTest();
}
TEST_P(DatarateTestRealTime, DropFramesMultiThreads) {
DropFramesMultiThreadsTest();
}
TEST_P(DatarateTestRealTime, RegionOfInterest) {
denoiser_on_ = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_dropframe_thresh = 0;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
// Encode using multiple threads.
cfg_.g_threads = 2;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 300);
cfg_.rc_target_bitrate = 450;
cfg_.g_w = 352;
cfg_.g_h = 288;
ResetModel();
// Set ROI parameters
use_roi_ = true;
memset(&roi_, 0, sizeof(roi_));
roi_.rows = (cfg_.g_h + 15) / 16;
roi_.cols = (cfg_.g_w + 15) / 16;
roi_.delta_q[0] = 0;
roi_.delta_q[1] = -20;
roi_.delta_q[2] = 0;
roi_.delta_q[3] = 0;
roi_.delta_lf[0] = 0;
roi_.delta_lf[1] = -20;
roi_.delta_lf[2] = 0;
roi_.delta_lf[3] = 0;
roi_.static_threshold[0] = 0;
roi_.static_threshold[1] = 1000;
roi_.static_threshold[2] = 0;
roi_.static_threshold[3] = 0;
// Use 2 states: 1 is center square, 0 is the rest.
roi_.roi_map =
(uint8_t *)calloc(roi_.rows * roi_.cols, sizeof(*roi_.roi_map));
for (unsigned int i = 0; i < roi_.rows; ++i) {
for (unsigned int j = 0; j < roi_.cols; ++j) {
if (i > (roi_.rows >> 2) && i < ((roi_.rows * 3) >> 2) &&
j > (roi_.cols >> 2) && j < ((roi_.cols * 3) >> 2)) {
roi_.roi_map[i * roi_.cols + j] = 1;
}
}
}
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
<< " The datarate for the file exceeds the target!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
<< " The datarate for the file missed the target!";
free(roi_.roi_map);
}
TEST_P(DatarateTestRealTime, GFBoost) {
denoiser_on_ = 0;
cfg_.rc_buf_initial_sz = 500;
cfg_.rc_dropframe_thresh = 0;
cfg_.rc_max_quantizer = 56;
cfg_.rc_end_usage = VPX_CBR;
cfg_.g_error_resilient = 0;
::libvpx_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 300);
cfg_.rc_target_bitrate = 300;
ResetModel();
// Apply a gf boost.
gf_boost_ = 50;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
ASSERT_GE(cfg_.rc_target_bitrate, effective_datarate_ * 0.95)
<< " The datarate for the file exceeds the target!";
ASSERT_LE(cfg_.rc_target_bitrate, file_datarate_ * 1.4)
<< " The datarate for the file missed the target!";
}
VP8_INSTANTIATE_TEST_CASE(DatarateTestLarge, ALL_TEST_MODES,
::testing::Values(0));
VP8_INSTANTIATE_TEST_CASE(DatarateTestRealTime,
::testing::Values(::libvpx_test::kRealTime),
::testing::Values(-6, -12));
} // namespace