UVC

1. Introduction

This project is the default debugging project for UVC, which can be used to test whether the inserted UVC works properly. The default is 16M PSRAM.

1.1 Specifications

Please refer to Specifications

1.2 Path

<bk_avdk source code path>/projects/peripheral/uvc

2. Framework diagram

Please refer to Framework diagram

3. Configuration

3.1 Bluetooth and Multimedia Memory Reuse

Using this project is only for verifying UVC, so the memory does not need to be shared with Bluetooth.

marco

value

implication

CONFIG_BT_REUSE_MEDIA_MEMORY

N

Multimedia and Bluetooth share one SRAM (time-division multiplexing)

3.1.1 Uninstalling Bluetooth

#ifdef CONFIG_BT_REUSE_MEDIA_MEMORY
#if CONFIG_BLUETOOTH
    bk_bluetooth_deinit();
#endif
#endif

3.1.2 Initialize Bluetooth

bk_bluetooth_init();

3.2 Differences

The difference between UVC and Doorbell is that:

UVC starts by default when powered on, and analyzes the output JPEG image raw data format YUV422/YUV420 and output resolution through a software decoder. Other peripherals are not involved and do not support image transfer, LCD display, voice transmission, etc.

Doorbell is a complete door lock solution.

4. Demonstration explanation

Default power on self start, no additional operation required, Print the following log.

(4736):##MJPEG: frame_id:113, length:56922, frame_addr:0x6020fba0
video_co:I(4736):4:2:2, YUV:
(4736):##DECODE:pixel_x:864, pixel_y:480
(4736):rotate_angle:0(0:0 1:90 2:180 3:270)
(4736):byte_order:0(0:little endian 1:big endian)
(4736):out_fmt:YUYV

5. Code explanation

Please refer to Code explanation