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Merge pull request #22700 from kallaballa:capture_backened_debug_msg

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log a debug message if a capture backend is generally available but isn't capabable of a capture mode
This commit is contained in:
Alexander Smorkalov 2023-05-04 20:33:36 +03:00 committed by GitHub
commit dabf960b32
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1 changed files with 26 additions and 4 deletions
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30
modules/videoio/src/cap.cpp
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@ -188,14 +188,25 @@ bool VideoCapture::open(const String& filename, int apiPreference, const std::ve
else
{
CV_CAPTURE_LOG_DEBUG(NULL,
cv::format("VIDEOIO(%s): backend is not available "
cv::format("VIDEOIO(%s): backend is not available "
"(plugin is missing, or can't be loaded due "
"dependencies or it is not compatible)",
info.name));
info.name));
}
}
}
if(apiPreference != CAP_ANY)
{
bool found = cv::videoio_registry::isBackendBuiltIn(static_cast<VideoCaptureAPIs>(apiPreference));
if (found)
{
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): backend is generally available "
"but can't be used to capture by name",
cv::videoio_registry::getBackendName(static_cast<VideoCaptureAPIs>(apiPreference)).c_str()));
}
}
if (throwOnFail)
{
CV_Error_(Error::StsError, ("could not open '%s'", filename.c_str()));
@ -302,14 +313,25 @@ bool VideoCapture::open(int cameraNum, int apiPreference, const std::vector<int>
else
{
CV_CAPTURE_LOG_DEBUG(NULL,
cv::format("VIDEOIO(%s): backend is not available "
cv::format("VIDEOIO(%s): backend is not available "
"(plugin is missing, or can't be loaded due "
"dependencies or it is not compatible)",
info.name));
info.name));
}
}
}
if(apiPreference != CAP_ANY)
{
bool found = cv::videoio_registry::isBackendBuiltIn(static_cast<VideoCaptureAPIs>(apiPreference));
if (found)
{
CV_LOG_WARNING(NULL, cv::format("VIDEOIO(%s): backend is generally available "
"but can't be used to capture by index",
cv::videoio_registry::getBackendName(static_cast<VideoCaptureAPIs>(apiPreference)).c_str()));
}
}
if (throwOnFail)
{
CV_Error_(Error::StsError, ("could not open camera %d", cameraNum));