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test: gif: to test GIF codec at write_gif_flags

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Kumataro
2025-08-09 13:10:08 +09:00
parent e31ff00104
commit 12efb8499d
1 changed files with 7 additions and 11 deletions
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modules/imgcodecs/test/test_gif.cpp
+7 -11
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@@ -257,20 +257,16 @@ TEST(Imgcodecs_Gif, read_gif_special){
}
TEST(Imgcodecs_Gif,write_gif_flags){
const string root = cvtest::TS::ptr()->get_data_path();
const string png_filename = root + "gifsuite/special1.png";
vector<uchar> buff;
const int expected_rows=611;
const int expected_cols=293;
Mat img_gt = Mat::ones(expected_rows, expected_cols, CV_8UC1);
vector<int> param;
param.push_back(IMWRITE_GIF_QUALITY);
param.push_back(7);
param.push_back(IMWRITE_GIF_DITHER);
param.push_back(2);
EXPECT_NO_THROW(imencode(".png", img_gt, buff, param));
Mat img_gt = Mat::ones(expected_rows, expected_cols, CV_8UC3);
const vector<int> param = { IMWRITE_GIF_QUALITY, IMWRITE_GIF_FAST_NO_DITHER, IMWRITE_GIF_DITHER, 3};
bool ret = false;
EXPECT_NO_THROW(ret = imencode(".gif", img_gt, buff, param));
EXPECT_TRUE(ret);
Mat img;
EXPECT_NO_THROW(img = imdecode(buff, IMREAD_ANYDEPTH)); // hang
EXPECT_NO_THROW(img = imdecode(buff, IMREAD_COLOR));
EXPECT_FALSE(img.empty());
EXPECT_EQ(img.cols, expected_cols);
EXPECT_EQ(img.rows, expected_rows);
@@ -280,7 +276,7 @@ TEST(Imgcodecs_Gif,write_gif_flags){
TEST(Imgcodecs_Gif, write_gif_big) {
const string root = cvtest::TS::ptr()->get_data_path();
const string png_filename = root + "gifsuite/gif_big.png";
const string gif_filename = cv::tempfile(".png");
const string gif_filename = cv::tempfile(".gif");
cv::Mat img;
ASSERT_NO_THROW(img = cv::imread(png_filename, IMREAD_UNCHANGED));
ASSERT_FALSE(img.empty());