Getting the Most Out of VPU and DMA

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To reduce the overhead from your GStreamer pipeline on the Verdin iMX8MP, you can consider the following strategies:

  1. Use Hardware Acceleration: Ensure that you are leveraging the hardware acceleration capabilities of the iMX8MP. This includes using the VPU for video encoding and decoding. The vpuenc_h264 element in your pipeline is a good start, but make sure that all parts of your pipeline that can be hardware-accelerated are using the appropriate plugins.

  2. DMABUF Usage: You mentioned trying to use DMABUF to reduce strain. Ensure that your pipeline is correctly set up to use DMABUF. This involves making sure that all elements in the pipeline support DMABUF and that the memory is being shared correctly between elements. You might need to adjust the pipeline to ensure compatibility with DMABUF.

  3. Optimize Pipeline Elements: Review the elements in your pipeline to ensure they are necessary and optimized. For example, videoconvert can be CPU-intensive, so ensure it’s needed or see if it can be replaced with a hardware-accelerated alternative.

  4. Debugging and Profiling: Use GStreamer debugging tools to identify bottlenecks in your pipeline. The errors you are seeing might indicate issues with memory handling or element compatibility. Addressing these errors could improve performance.

  5. Check for Updates: Ensure that you are using the latest versions of the GStreamer plugins and the NXP BSP, as updates might include performance improvements or bug fixes.

  6. Consult Documentation: Refer to the iMX8 GStreamer User Guide and other relevant documentation for specific instructions on optimizing pipelines for the iMX8MP.

If these strategies do not resolve the issue, you may need to delve deeper into the specific errors and warnings you are encountering, possibly with the help of the GStreamer community or Toradex support.

Please, also check if these links can help you solve your problem:

When building tdx-reference-multimedia-image, around 5000 task, it hangs. How to solve this?.