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videoio: preserve conflict with common properties

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Usage:
    writer.set(cv::CAP_PROP_IMAGES_BASE + cv::IMWRITE_JPEG_QUALITY, 80);
This commit is contained in:
Alexander Alekhin 2016-12-01 15:17:33 +03:00
parent c560ff23ad
commit e547bbbc3f
2 changed files with 21 additions and 3 deletions
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14
modules/videoio/include/opencv2/videoio.hpp
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@ -556,6 +556,20 @@ enum { CAP_PROP_GPHOTO2_PREVIEW = 17001, //!< Capture only preview fro
//! @} gPhoto2
/** @name Images backend
@{
*/
/** @brief Images backend properties
*/
enum { CAP_PROP_IMAGES_BASE = 18000,
CAP_PROP_IMAGES_LAST = 19000 // excluding
};
//! @} Images
//! @} videoio_flags_others

10
modules/videoio/src/cap_images.cpp
View File

@ -393,9 +393,13 @@ bool CvVideoWriter_Images::open( const char* _filename )
bool CvVideoWriter_Images::setProperty( int id, double value )
{
params.push_back( id );
params.push_back( static_cast<int>( value ) );
return true;
if (id >= cv::CAP_PROP_IMAGES_BASE && id < cv::CAP_PROP_IMAGES_LAST)
{
params.push_back( id - cv::CAP_PROP_IMAGES_BASE );
params.push_back( static_cast<int>( value ) );
return true;
}
return false; // not supported
}