Large webp file loading

lilyrxj · January 5, 2023, 2:31am

I am loading a webp file in C++. it showed that my webp file is too large.

File is too large. Increase OPENCV_IMGCODECS_WEBP_MAX_FILE_SIZE parameter if you want to process large files (expected: ‘fs_size <= param_maxFileSize’), where
‘fs_size’ is 81092200
must be less than or equal to
‘param_maxFileSize’ is 67108864

How can I address this?

Thank you!

crackwitz · January 5, 2023, 5:40am

it’s an environment variable.

lilyrxj · January 5, 2023, 6:09am

It worked. Thank you very much!

berak · January 5, 2023, 8:21am

take a look, why it is there:

github.com

opencv/opencv/blob/9208dcb07c015e1fda44e40bb07b43c700b4bf46/modules/imgcodecs/src/grfmt_webp.cpp#L62


      
          
          
#include "grfmt_webp.hpp"
          
          
#include "opencv2/imgproc.hpp"
          
          
#include <opencv2/core/utils/configuration.private.hpp>
          
          
namespace cv
          {
          
          
// 64Mb limit to avoid memory DDOS
          static size_t param_maxFileSize = utils::getConfigurationParameterSizeT("OPENCV_IMGCODECS_WEBP_MAX_FILE_SIZE", 64*1024*1024);
          
          
static const size_t WEBP_HEADER_SIZE = 32;
          
          
WebPDecoder::WebPDecoder()
          {
              m_buf_supported = true;
              channels = 0;
              fs_size = 0;
          }

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Large webp file loading

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