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esp_cam_ctlr_get_frame_buffer() function
Get ESP CAM controller internal malloced backup buffer(s) addr
Syntax
esp_err_t esp_cam_ctlr_get_frame_buffer(esp_cam_ctlr_handle_t handle,
uint32_t fb_num,
const void **fb0, ...);
Implemented in ![]()
esp_cam_ctlr.c:67
Return value
- ESP_OK - ESP_ERR_INVALID_ARG: Invalid argument - ESP_ERR_INVALID_STATE: Invalid driver state
Notes
Generally, data in internal buffer is ready when `on_trans_finished` event
Related Functions
Found 8 other functions taking a ![]()
esp_cam_ctlr_t
argument:
Function
Description
Delete ESP CAM controller handle
Get ESP CAM controller internal backup buffer length
Enable ESP CAM controller
Start ESP CAM controller
Stop ESP CAM controller
Disable ESP CAM controller
Receive data to the given transaction
Register ESP CAM controller event callbacks
References
Code
Location
Call Tree
esp_cam_ctlr_get_frame_buffer() calls 3 functions:
Data Use
esp_cam_ctlr_get_frame_buffer() reads 7 variables: