PointCloudLibrary / PointCloudLibrary/pcl

openni_wrapper::DeviceXtionPro::getCurrentImage returns null pointer?

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#681 4 comments 0 reactions 0 assignees View on GitHub

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effort: trivial good first issue kind: todo module: io
Dominant language
C++
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Description

Not sure if this is necessarily wrong, but why do we have

boost::shared_ptr<openni_wrapper::Image> 
openni_wrapper::DeviceXtionPro::getCurrentImage (boost::shared_ptr<xn::ImageMetaData>) const throw ()
{
  return (boost::shared_ptr<Image> (reinterpret_cast<Image*> (0)));
}

when for the other devices we return an actual image:

boost::shared_ptr<openni_wrapper::Image> 
openni_wrapper::DevicePrimesense::getCurrentImage (boost::shared_ptr<xn::ImageMetaData> image_data) const throw ()
{
  return (boost::shared_ptr<openni_wrapper::Image> (new ImageYUV422 (image_data)));
}

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First steps

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  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Locate openni_wrapper::DeviceXtionPro::getCurrentImage and compare its behavior with openni_wrapper::DevicePrimesense::getCurrentImage. Read the surrounding device and image-wrapper code first to determine whether the null pointer is intentional or violates the interface contract; done means establishing the expected behavior and addressing or documenting the discrepancy.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
computer-vision
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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