Hi All, I want to implement the following use case on Intel Haswell CPU with HD graphics:
offscreen OpenGL rendering to OpenGL 2D texture -> use EGL_MESA_image_dma_buf_export to export the texture as prime fd -> vaCreateSurfaces from the prime fd -> use vaapi to hw acclerate h264 encoding Is this supported by the latest va-api and libva-intel-driver release (i.e., 1.7.0)? If so, is there any example I can start with? I did read the sample application h264encode.c and thought it might be a good starting point. However, the first major issue I encountered is when creating context through vaCreateContext, a number of pre-allocated va surfaces are required and thus statically associated with the new va context. However, with prime fd, the fd will change so a new va surface is created with every new prime fd. I don't see any API can be used to dynamically add/remove va surfaces after the context is created. Can you please give me some suggestions? Best, Kristine
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