83 lines
2.8 KiB
ReStructuredText
Executable File
83 lines
2.8 KiB
ReStructuredText
Executable File
UVC
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===============================
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:link_to_translation:`zh_CN:[中文]`
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1. Introduction
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---------------------------------
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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.
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1.1 Specifications
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Please refer to `Specifications <../../media/doorbell/index.html#specifications>`_
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1.2 Path
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<bk_avdk source code path>/projects/peripheral/uvc
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2. Framework diagram
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---------------------------------
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Please refer to `Framework diagram <../../media/doorbell/index.html#framework-diagram>`_
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3. Configuration
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---------------------------------
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3.1 Bluetooth and Multimedia Memory Reuse
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Using this project is only for verifying UVC, so the memory does not need to be shared with Bluetooth.
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+-------------------------------------+---------------+---------------------------------------------------------------------+
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| marco | value | implication |
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+-------------------------------------+---------------+---------------------------------------------------------------------+
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| CONFIG_BT_REUSE_MEDIA_MEMORY | N | Multimedia and Bluetooth share one SRAM (time-division multiplexing)|
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+-------------------------------------+---------------+---------------------------------------------------------------------+
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3.1.1 Uninstalling Bluetooth
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.................................
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::
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#ifdef CONFIG_BT_REUSE_MEDIA_MEMORY
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#if CONFIG_BLUETOOTH
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bk_bluetooth_deinit();
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#endif
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#endif
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3.1.2 Initialize Bluetooth
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.................................
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::
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bk_bluetooth_init();
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3.2 Differences
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The difference between UVC and Doorbell is that:
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* 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.
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* Doorbell is a complete door lock solution.
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4. Demonstration explanation
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---------------------------------
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Default power on self start, no additional operation required, Print the following log.
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::
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(4736):##MJPEG: frame_id:113, length:56922, frame_addr:0x6020fba0
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video_co:I(4736):4:2:2, YUV:
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(4736):##DECODE:pixel_x:864, pixel_y:480
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(4736):rotate_angle:0(0:0 1:90 2:180 3:270)
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(4736):byte_order:0(0:little endian 1:big endian)
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(4736):out_fmt:YUYV
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5. Code explanation
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---------------------------------
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Please refer to `Code explanation <../../media/doorbell/index.html#code-explanation>`_ |