Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
I need to perform video scaling in my C++ app. I know I can use COM to communicate to C#, and I know C# can perform video scaling, so I am thinking of bridging the two worlds.
How can I, using C#, scale a video image which is in memory, and then get the video data after the image is scaled?
This question seems similar but how do I get the data after scaling instead of showing it to screen?
High Quality Image Scaling Library
C# (using GDI+ a.k.a.
System.Drawing) can scale individual images, but it has no built-in way of scaling full videos (like MPEGs or AVIs).Assuming that you actually only need to scale individual images (i.e. not full videos), then you would be better off doing this from C++ (
StretchBltwould be the main API method that you would use for this.