ESP32-Cam -- Is there a way to reduce the amont of SPI PSRAM memory used up during esp_camera_init

[visdespressif]

Below code:-

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1. Serial.printf("Before camera config ... SPIRam Total heap %d, SPIRam Free Heap %d", ESP.getPsramSize(), ESP.getFreePsram())
2.  cam_err = esp_camera_init(&config);
3.  Serial.printf("After camera config ... SPIRam Total heap %d, SPIRam Free Heap %d", ESP.getPsramSize(), ESP.getFreePsram())

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Will give the following printed:-

Code: Select all

  Before camera config ... SPIRam Total heap   4194252, SPIRam Free Heap   4194252
  After  camera config ... SPIRam Total heap   4194204, SPIRam Free Heap   1314204

So of 4MB, only 1.3 MB remains free after esp_camera_init. Is there a possibility such that this can be reduced, and have relatively larger amount of free memory in PSRAM.

I am using AI-Thinker board ESP32-Cam.

(I am following this code: https://github.com/jameszah/ESP32-CAM-V ... der-junior)