Commit 26ac0478 authored by Imdad Sardharwalla's avatar Imdad Sardharwalla Committed by Debargha Mukherjee

Added a test for monochrome encoding.

The test encodes 5 frames of a video using the --monochrome flag and
verifies that the decoded frames satisfy:

- each frame's monochrome flag is set to 1
- each frame's U and V planes are set to a constant, and this constant
  is the same for all decoded frames
- the initial frame's Y PSNR value is 'high enough'
- the Y PSNR values remain fairly constant across all of the frames

Change-Id: I4239ddfb745ed9746547737b4bc99963c71e51c0
parent af8e2648
......@@ -152,17 +152,19 @@ static bool compare_img(const aom_image_t *img1, const aom_image_t *img2,
#if CONFIG_CICP
if (img1->fmt != img2->fmt || img1->cp != img2->cp || img1->tc != img2->tc ||
img1->mc != img2->mc || img1->d_w != img2->d_w ||
img1->d_h != img2->d_h) {
img1->d_h != img2->d_h || img1->monochrome != img2->monochrome) {
#else
if (img1->fmt != img2->fmt || img1->cs != img2->cs ||
img1->d_w != img2->d_w || img1->d_h != img2->d_h) {
img1->d_w != img2->d_w || img1->d_h != img2->d_h ||
img1->monochrome != img2->monochrome) {
#endif
if (mismatch_row != NULL) *mismatch_row = -1;
if (mismatch_col != NULL) *mismatch_col = -1;
return false;
}
for (int plane = 0; plane < 3; plane++) {
const int num_planes = img1->monochrome ? 1 : 3;
for (int plane = 0; plane < num_planes; plane++) {
if (!compare_plane(img1->planes[plane], img1->stride[plane],
img2->planes[plane], img2->stride[plane],
aom_img_plane_width(img1, plane),
......
/*
* 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/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"
namespace {
class MonochromeTest
: public ::libaom_test::CodecTestWithParam<libaom_test::TestMode>,
public ::libaom_test::EncoderTest {
protected:
MonochromeTest() : EncoderTest(GET_PARAM(0)), frame0_psnr_y_(0.) {}
virtual ~MonochromeTest() {}
virtual void SetUp() {
InitializeConfig();
SetMode(GET_PARAM(1));
}
virtual void DecompressedFrameHook(const aom_image_t &img,
aom_codec_pts_t pts) {
(void)pts;
// Get value of top-left corner pixel of U plane
int chroma_value = img.planes[AOM_PLANE_U][0];
bool is_chroma_constant =
ComparePlaneToValue(img, AOM_PLANE_U, chroma_value) &&
ComparePlaneToValue(img, AOM_PLANE_V, chroma_value);
// Chroma planes should be constant
EXPECT_TRUE(is_chroma_constant);
// Monochrome flag on image should be set
EXPECT_EQ(img.monochrome, 1);
chroma_value_list_.push_back(chroma_value);
}
// Returns true if all pixels on the plane are equal to value, and returns
// false otherwise.
bool ComparePlaneToValue(const aom_image_t &img, const int plane,
const int value) {
const int w = aom_img_plane_width(&img, plane);
const int h = aom_img_plane_height(&img, plane);
const uint8_t *const buf = img.planes[plane];
const int stride = img.stride[plane];
for (int r = 0; r < h; ++r) {
for (int c = 0; c < w; ++c) {
if (buf[r * stride + c] != value) return false;
}
}
return true;
}
virtual void PSNRPktHook(const aom_codec_cx_pkt_t *pkt) {
// Check that the initial Y PSNR value is 'high enough', and check that
// subsequent Y PSNR values are 'close' to this initial value.
if (frame0_psnr_y_ == 0.) {
frame0_psnr_y_ = pkt->data.psnr.psnr[1];
EXPECT_GT(frame0_psnr_y_, 29.);
}
EXPECT_NEAR(pkt->data.psnr.psnr[1], frame0_psnr_y_, 2.5);
}
std::vector<int> chroma_value_list_;
double frame0_psnr_y_;
};
TEST_P(MonochromeTest, TestMonochromeEncoding) {
::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352, 288,
30, 1, 0, 5);
init_flags_ = AOM_CODEC_USE_PSNR;
cfg_.g_w = 352;
cfg_.g_h = 288;
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 = 1;
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;
// Run at low bitrate.
cfg_.rc_target_bitrate = 40;
// Set monochrome encoding flag
cfg_.monochrome = 1;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
// Check that the chroma planes are equal across all frames
std::vector<int>::const_iterator iter = chroma_value_list_.begin();
int initial_chroma_value = *iter;
for (; iter != chroma_value_list_.end(); ++iter) {
// Check that all decoded frames have the same constant chroma planes.
EXPECT_EQ(*iter, initial_chroma_value);
}
}
AV1_INSTANTIATE_TEST_CASE(MonochromeTest,
::testing::Values(::libaom_test::kTwoPassGood));
} // namespace
......@@ -101,6 +101,12 @@ set(AOM_UNIT_TEST_ENCODER_SOURCES
"${AOM_ROOT}/test/y4m_video_source.h"
"${AOM_ROOT}/test/yuv_video_source.h")
if (CONFIG_MONO_VIDEO)
set(AOM_UNIT_TEST_ENCODER_SOURCES
${AOM_UNIT_TEST_ENCODER_SOURCES}
"${AOM_ROOT}/test/monochrome_test.cc")
endif ()
if (NOT BUILD_SHARED_LIBS)
set(AOM_UNIT_TEST_ENCODER_SOURCES
${AOM_UNIT_TEST_ENCODER_SOURCES}
......
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