OVMS3-idf/examples/peripherals/spi_master/main/decode_image.h
2018-03-26 17:07:32 +08:00

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588 B
C

#pragma once
#include <stdint.h>
#include "esp_err.h"
/**
* @brief Decode the jpeg ``image.jpg`` embedded into the program file into pixel data.
*
* @param pixels A pointer to a pointer for an array of rows, which themselves are an array of pixels.
* Effectively, you can get the pixel data by doing ``decode_image(&myPixels); pixelval=myPixels[ypos][xpos];``
* @return - ESP_ERR_NOT_SUPPORTED if image is malformed or a progressive jpeg file
* - ESP_ERR_NO_MEM if out of memory
* - ESP_OK on succesful decode
*/
esp_err_t decode_image(uint16_t ***pixels);