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videoio: backends priority list

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This commit is contained in:
Alexander Alekhin
2018-05-21 14:06:31 +00:00
parent 06c1890639
commit cd9e43704e
8 changed files with 948 additions and 591 deletions
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modules/videoio/src/cap_mjpeg_encoder.cpp
+4 -1
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@@ -1530,8 +1530,11 @@ void MotionJpegWriter::writeFrameData( const uchar* data, int step, int colorspa
}
Ptr<IVideoWriter> createMotionJpegWriter( const String& filename, double fps, Size frameSize, bool iscolor )
Ptr<IVideoWriter> createMotionJpegWriter(const String& filename, int fourcc, double fps, Size frameSize, bool iscolor)
{
if (fourcc != CV_FOURCC('M', 'J', 'P', 'G'))
return Ptr<IVideoWriter>();
Ptr<IVideoWriter> iwriter = makePtr<mjpeg::MotionJpegWriter>(filename, fps, frameSize, iscolor);
if( !iwriter->isOpened() )
iwriter.release();