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TDA4VMXEVM: pipeline_depth MAX value for the graph ?

Vivek Malhotra65
Prodigy 130 points

Part Number: TDA4VMXEVM

Hi,

The default MAX value for pipeline depth is 8 in tivx_config.h, but when passing 8 as the desired depth before verifygraph returns error "tivxSetGraphPipelineDepth: pipeline depth greater than max allowed pipeline depth"

beacsue in tiovx vx_graph_pipeline.c the condition check is if (pipeline_depth < TIVX_GRAPH_MAX_PIPELINE_DEPTH) so expectation is a bit incorrect to start pipeline depth from 0.

This interface will look much better if the pipelinedepth starts with 1

  • 0
    TI__Genius 13845 points

    Hello Vivek,

    As you have observed, the max pipeline depth value allowed by the tivxSetGraphPipelineDepth API is (TIVX_GRAPH_MAX_PIPELINE_DEPTH-1).  We will clarify this in future releases.  If you need a larger value for the pipeline depth, you can increase the value of TIVX_GRAPH_MAX_PIPELINE_DEPTH in include/TI/tivx_config.h.

    To be clear, the default value of pipeline depth will be 1 for a given graph.

    Regards,

    Lucas