Thanks. Knowing it's 2.1 and on Mac makes it easy for me to try to reproduce on
my end. I'll give it a shot tomorrow.
-- lg
> On Oct 11, 2020, at 11:30 PM, Arman Garakani <[email protected]>
> wrote:
>
>
> I am using a brew. I will certainly clone and built off of repo sometime
> tomorrow.
>
> macOS 10.15.6
>
> $ brew info openimageio
> openimageio: stable 2.1.18 (bottled), HEAD
> Library for reading, processing and writing images
> https://openimageio.org/ <https://openimageio.org/>
> /usr/local/Cellar/openimageio/2.1.18_1 (93 files, 16.3MB) *
> Poured from bottle on 2020-10-08 at 14:19:55
> From:
> https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/openimageio.rb
> <https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/openimageio.rb>
> License: BSD-3-Clause
> ==> Dependencies
> Build: cmake ✘, pkg-config ✔
> Required: boost ✔, boost-python3 ✔, ffmpeg ✔, freetype ✔, giflib ✔, ilmbase
> ✔, jpeg ✔, libheif ✔, libpng ✔, libraw ✔, libtiff ✔, opencolorio ✔, openexr
> ✔, [email protected] ✔, webp ✔
> ==> Options
> --HEAD
> Install HEAD version
> ==> Analytics
> install: 306 (30 days), 1,135 (90 days), 4,118 (365 days)
> install-on-request: 271 (30 days), 983 (90 days), 3,259 (365 days)
> build-error: 0 (30 days)
>
> Thanks for responding so quickly.
>
> -Arman.
>
>> On Oct 11, 2020, at 9:35 PM, Larry Gritz <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Which platform (OS, compiler)? Which version of OIIO?
>>
>> If you run with a debug build, can you get a stack trace that shows the call
>> sequence or line where it crashed?
>>
>>
>>
>>> On Oct 11, 2020, at 9:12 PM, Arman Garakani <[email protected]
>>> <mailto:[email protected]>> wrote:
>>>
>>> I am adding unit test as part of adding OpenImageIO to our app ( Machine
>>> Learning / Computer Vision / Biological Assays ). Before going further,
>>> oiio solves a fundamental problem in developing media accessing
>>> functionality. I have a very directed functionality for videos. Oiio has
>>> more functionality, simpler API and supports much wider image format APIs.
>>>
>>> Here is the problem I am having with small tif stack files I use for
>>> testing. <zser16.tif><zser8.tif>
>>>
>>>
>>> Here is what iinfo says about it:
>>>
>>> $ iinfo zser8.tif
>>> zser8.tif : 160 x 128, 1 channel, uint8 tiff (11 subimages)
>>>
>>> OpenImageIO ImageCache statistics (shared) ver 2.1.18
>>> Options: max_memory_MB=2048.0 max_open_files=100 autotile=0
>>> autoscanline=0 automip=0 forcefloat=0 accept_untiled=1
>>> accept_unmipped=1 deduplicate=1 unassociatedalpha=0
>>> failure_retries=0
>>>
>>> In the function below, the output before the loop calling add_tile, outputs:
>>> 11 (160,128) 255::-1::-1::NA::8
>>>
>>>
>>> call to add_tile generates a memory access fault. The interesting thing
>>> here is that similar file but containing 16bit data works fine.
>>>
>>>
>>>
>>>
>>> This is a simple test I am developing to assess hit and miss performance
>>> with ImageCache. The test function is a lambda here for simplicity.
>>>
>>>
>>>
>>>
>>>
>>> TEST(oiio, basic){
>>>
>>> auto test_file = [](const ustring& filename){
>>> // Create a private ImageCache so we can customize its cache size
>>> // and instruct it store everything internally as floats.
>>> ImageCache* ic = ImageCache::create(true);
>>> ic->attribute("autotile", 0);
>>> ic->attribute("max_memory_MB", 2048.0);
>>>
>>>
>>> ImageSpec spec;
>>> int number_of_subimages = 0;
>>> while (ic->get_imagespec (filename, spec, number_of_subimages)){
>>> number_of_subimages++;
>>> }
>>> unsigned int maxval = (unsigned int)get_intsample_maxval(spec);
>>> int xres = spec.width;
>>> int yres = spec.height;
>>> int channels = spec.nchannels;
>>> int i = spec.get_int_attribute ("oiio:subimages", -1.0);
>>> int bp = spec.get_int_attribute ("oiio:BitsPerSample", -1);
>>> float fps = spec.get_float_attribute ("Fps", -1.0f);
>>> std::string s = spec.get_string_attribute ("DateTime", "NA");
>>>
>>> std::vector<unsigned char> pixels (xres*yres*channels);
>>> std::cout << number_of_subimages << " (" << xres << "," << yres << ") "
>>> <<
>>> maxval << "::" << i << "::" << fps << "::" << s << "::" << bp <<
>>> std::endl;
>>>
>>> for (int ss = 0; ss < number_of_subimages; ss++){
>>> if (ss & 1)
>>> ic->add_tile(filename, ss, 0, 0, 0, 0, 1, 0, TypeDesc::UINT8,
>>> pixels.data());
>>> }
>>>
>>> {
>>> std::cout << " Half Cached " << std::endl;
>>> // average hit time and miss time
>>> float hits(0.0), miss(0.0);
>>> int hitn(0), missn(0);
>>> for (int ss = 0; ss < number_of_subimages; ss++){
>>> if (ss & 1){
>>> OIIO::Timer hitimer;
>>> auto tile = ic->get_tile(filename, ss, 0, 0, 0, 0, 1, 0);
>>> assert(tile != nullptr);
>>> hits += hitimer();
>>> hitn++;
>>> }
>>> else{
>>> OIIO::Timer misstimer;
>>> ic->add_tile(filename, ss, 0, 0, 0, 0, 1, 0,
>>> TypeDesc::UINT8, pixels.data());
>>> miss += misstimer();
>>> missn++;
>>> }
>>> }
>>> hits /= hitn;
>>> miss /= missn;
>>> std::cout << hitn << "," << missn << std::endl;
>>>
>>> std::cout << hits * 1000 << " , " << miss * 1000 << std::endl;
>>> }
>>>
>>> std::cout << " All Cached " << std::endl;
>>>
>>> float hits(0.0), miss(0.0);
>>> int hitn(0), missn(0);
>>> for (int ss = 0; ss < number_of_subimages; ss++){
>>> OIIO::Timer hitimer;
>>> auto tile = ic->get_tile(filename, ss, 0, 0, 0, 0, 1, 0);
>>> if (tile != nullptr){
>>> hits += hitimer();
>>> hitn++;
>>> }
>>> else{
>>> miss += hitimer();
>>> missn++;
>>> }
>>> }
>>> hits /= hitn;
>>> if (missn) miss /= missn;
>>> std::cout << hitn << "," << missn << std::endl;
>>> std::cout << hits * 1000 << " , " << miss * 1000 << std::endl;
>>> std::cout << ic->getstats() << std::endl;
>>>
>>> };
>>>
>>>
>>> auto res = dgenv_ptr->asset_path("zser8.tif");
>>> EXPECT_TRUE(res.second);
>>> EXPECT_TRUE(boost::filesystem::exists(res.first));
>>> ustring filename (res.first.c_str());
>>> test_file(filename);
>>>
>>> }
>>>
>>>
>>> _______________________________________________
>>> Oiio-dev mailing list
>>> [email protected] <mailto:[email protected]>
>>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>>> <http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org>
>>
>> --
>> Larry Gritz
>> [email protected] <mailto:[email protected]>
>>
>>
>>
>>
>> _______________________________________________
>> Oiio-dev mailing list
>> [email protected] <mailto:[email protected]>
>> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
>
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
--
Larry Gritz
[email protected]
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