Return types and error codes

Return codes for Edge Impulse functions.

Source: dsp/returntypes.h

EI_IMPULSE_ERROR

enum EI_IMPULSE_ERROR 

Value	Description
EI_IMPULSE_OK	Success
EI_IMPULSE_ERROR_SHAPES_DONT_MATCH	The shape of data does not match the shape of input layer.
EI_IMPULSE_CANCELED	Impulse execution is cancelled by user.
EI_IMPULSE_TFLITE_ERROR	Error in TesnorFlow Lite inference engine
EI_IMPULSE_DSP_ERROR	Error in processing portion of impulse
EI_IMPULSE_TFLITE_ARENA_ALLOC_FAILED	Failed to allocate memory in TensorFlow Lite arena, often caused by a lack of available heap memory.
EI_IMPULSE_CUBEAI_ERROR	Error in CubeAI inference engine (STM32)
EI_IMPULSE_ALLOC_FAILED	Memory allocation failed. Could be caused by a fragmented heap. Try to increase heap size.
EI_IMPULSE_ONLY_SUPPORTED_FOR_IMAGES	This function is only supported for impulses with an image input.
EI_IMPULSE_UNSUPPORTED_INFERENCING_ENGINE	The chosen inference engine (e.g. in Studio) is incapable of running this impulse.
EI_IMPULSE_OUT_OF_MEMORY	Out of memory. Could be caused by a fragmented heap. Try to increase heap size.
EI_IMPULSE_INPUT_TENSOR_WAS_NULL	Input tensor was null
EI_IMPULSE_OUTPUT_TENSOR_WAS_NULL	Output tensor was null
EI_IMPULSE_SCORE_TENSOR_WAS_NULL	Score tensor is null (for SSD Object Detection models).
EI_IMPULSE_LABEL_TENSOR_WAS_NULL	Label tensor is null (for SSD Object Detection models).
EI_IMPULSE_TENSORRT_INIT_FAILED	TensorRT (NVIDIA) initialization failed.
EI_IMPULSE_DRPAI_INIT_FAILED	DRP-AI (Renesas) initialization failed.
EI_IMPULSE_DRPAI_RUNTIME_FAILED	DRP-AI (Renesas) runtime failed.
EI_IMPULSE_DEPRECATED_MODEL	The model is deprecated and cannot be used. You should re-export the impulse from Studio.
EI_IMPULSE_LAST_LAYER_NOT_AVAILABLE	The last layer is not available in the model.
EI_IMPULSE_INFERENCE_ERROR	Error during inference.
EI_IMPULSE_AKIDA_ERROR	Error in Akida inference engine (BrainChip)
EI_IMPULSE_INVALID_SIZE	The shape of data does not match the shape of input layer.
EI_IMPULSE_ONNX_ERROR	Error in ONNX inference engine
EI_IMPULSE_MEMRYX_ERROR	Error in Memryx inference engine