How to switch between different video sources and zoom in to full screen on Sink

[junshengy]

You can refer this code snippets. NvBufSurfTransform will do all this work for you.

Deepstream sample code snippet

Simple description for your code a. Creating nv12 opencv mat from NvMM memory, b. Work on opencv nv12 mat, do conversion to other opencv RGBA mat, rgba mat. c. Create another scratch RGBA NvBufSurface and do opencv conversion to rotate RGBA in rotate mat. d. Transform rotated RGBA mat to NV12 memory in original input surface e. So now NvMM NV12 memory from original buffer is also rotated. Which version are you based on a. DS 5.0 DP Which platform have you verified for your code a. T4 --…

nvmultistreamtiler and nvdrmvideosink can achieve your needs. If it is not necessary, please avoid copying data to improve performance.