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Merge pull request #21966 from Harvey-Huang:Unicode_Path

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Support use memory buffer to read multi-page image
This commit is contained in:
Harvey Huang
2022-10-11 19:25:35 +08:00
committed by GitHub
parent ec26541771
commit 8b0aa6a64d
3 changed files with 202 additions and 0 deletions
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modules/imgcodecs/test/test_tiff.cpp
+37
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@@ -442,6 +442,43 @@ TEST_P(Imgcodecs_Tiff_Modes, decode_multipage)
}
}
TEST_P(Imgcodecs_Tiff_Modes, decode_multipage_use_memory_buffer)
{
const int mode = GetParam();
const string root = cvtest::TS::ptr()->get_data_path();
const string filename = root + "readwrite/multipage.tif";
const string page_files[] = {
"readwrite/multipage_p1.tif",
"readwrite/multipage_p2.tif",
"readwrite/multipage_p3.tif",
"readwrite/multipage_p4.tif",
"readwrite/multipage_p5.tif",
"readwrite/multipage_p6.tif"
};
const size_t page_count = sizeof(page_files) / sizeof(page_files[0]);
vector<Mat> pages;
FILE* fp = fopen(filename.c_str(), "rb");
ASSERT_TRUE(fp != NULL);
fseek(fp, 0, SEEK_END);
long pos = ftell(fp);
std::vector<uchar> buf;
buf.resize((size_t)pos);
fseek(fp, 0, SEEK_SET);
buf.resize(fread(&buf[0], 1, buf.size(), fp));
fclose(fp);
bool res = imdecodemulti(buf, mode, pages);
ASSERT_TRUE(res == true);
ASSERT_EQ(page_count, pages.size());
for (size_t i = 0; i < page_count; i++)
{
const Mat page = imread(root + page_files[i], mode);
EXPECT_PRED_FORMAT2(cvtest::MatComparator(0, 0), page, pages[i]);
}
}
const int all_modes[] =
{
IMREAD_UNCHANGED,