Can a frame be used by the Libargus stream without released by the application

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
1

When I use Libargus API, if I get an image from the stream, can the buffer be modified by the stream before I release it?

If not, will that affect the stream, such as the stream cannot get new image? Or the stream effectively has one less buffer?

4

Maybe check the yuvJpeg in the MMAPI sample code.

Thanks

5

I checked the yuvJpeg sample code. But I am still not very clear. I have three questions.

  1. From the description of the setMode function on this page: Jetson Linux API Reference: Argus::IEGLOutputStreamSettings Class Reference | NVIDIA Docs, if FIFO mode is used, then we have to set the fifo length. But I didn’t find it in the sample code.

  2. Assume I use FIFO mode and set the fifo length to 5. if the consumer couldn’t finish the image before the fifo is full, the Argus will stall. Will Argus put a new image immediately when the fifo is not full or Argus will need to wait for a new image available and then put it into the fifo?

  3. I only saw EGLStream has mailbox and fifo modes. Does BufferStream have any mode? Or it is like the fifo mode? When I pass the buffers, they will be treated as circular buffers? Then will any buffer be overwritten?

Thanks a lot!