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Read time: 1 minute(s)
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< div class = "- topic/p p" data-ofbid = "d113430e33__20250519091516" > Digital Video Port (DVP) 模块是一个负责从 Sensor (传感器)中获取数据,经过格式转换或者缩放后输出到内存 (DRAM) 中的硬件组件。DVP
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模块应用于嵌入式系统和多媒体设备中,用于处理来自摄像头的视频数据。< div class = "table-container" > < table class = "- topic/table table frame-all" id = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c" data-ofbid = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c" data-cols = "3" > < caption class = "- topic/title title tablecap" data-caption-side = "top" data-is-repeated = "true" > < span class = "table--title-label" > 表< span class = "table--title-label-number" > 1< / span > < span class = "table--title-label-punctuation" > . < / span > < / span > < span class = "table--title" > 术语定义< / span > < / caption > < colgroup > < col style = "width:16.611295681063122%" / > < col style = "width:30.564784053156153%" / > < col style = "width:52.823920265780735%" / > < / colgroup > < thead class = "- topic/thead thead" >
< tr class = "- topic/row" >
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< th class = "- topic/entry entry colsep-1 rowsep-1" id = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e53__20250519091516" > 术语< / p > < / th >
< th class = "- topic/entry entry colsep-1 rowsep-1" id = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e57__20250519091516" > 定义< / p > < / th >
< th class = "- topic/entry entry colsep-0 rowsep-1" id = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e61__20250519091516" > 注释说明< / p > < / th >
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< / tr >
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< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e71__20250519091516" > CMA< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e75__20250519091516" > Contiguous Memory Allocator< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e79__20250519091516" > 连续内存分配器< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e86__20250519091516" > DVP< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e90__20250519091516" > Digital Video Port< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e94__20250519091516" > 用于接收视频数据数据,转换格式后存放到内存中< / p > < / td >
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< / tr >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e101__20250519091516" > VBI< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e105__20250519091516" > Vertical Blanking Interval< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e109__20250519091516" > 垂直消隐期< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e116__20250519091516" > ISP< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e120__20250519091516" > Image Signal Processing< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e124__20250519091516" > 图像信号处理,一般指对前端图像传感器输出信号的处理< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e131__20250519091516" > MBUS< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e135__20250519091516" > Media Bus< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e139__20250519091516" > V4L2 框架中用到的一种媒体类型,用于两个 L2 设备之间的协商< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e147__20250519091516" > MPP< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e151__20250519091516" > Media Process Platform< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e155__20250519091516" > 通用多媒体处理软件平台< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e162__20250519091516" > Sensor< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e166__20250519091516" > 即 Camera< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-1" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e170__20250519091516" > 本文中指摄像头< / p > < / td >
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< / tr >
< tr class = "- topic/row" >
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< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__1" > < p class = "- topic/p p" data-ofbid = "d113430e177__20250519091516" > VIN< / p > < / td >
< td class = "- topic/entry entry colsep-1 rowsep-0" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__2" > < p class = "- topic/p p" data-ofbid = "d113430e181__20250519091516" > Video Input< / p > < / td >
< td class = "- topic/entry entry colsep-0 rowsep-0" headers = "concept_h4d_fwt_tzb__table_jwg_mmg_d1c__entry__3" > < p class = "- topic/p p" data-ofbid = "d113430e185__20250519091516" > 视频输入(采集)模块< / p > < / td >
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< / tr >
< / tbody > < / table > < / div > < / div >
< section class = "- topic/section section" id = "concept_h4d_fwt_tzb__id3" data-ofbid = "concept_h4d_fwt_tzb__id3" > < h2 class = "- topic/title title sectiontitle" > 模块特性< / h2 >
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< ul class = "- topic/ul ul simple" id = "concept_h4d_fwt_tzb__ul_qyb_ydt_2dc" data-ofbid = "concept_h4d_fwt_tzb__ul_qyb_ydt_2dc" >
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< li class = "- topic/li li" data-ofbid = "d113430e199__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e201__20250519091516" > 最大支持 1080P@30 帧 录像< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d113430e205__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e207__20250519091516" > 支持 5M 拍照< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d113430e211__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e213__20250519091516" > 支持 YUV422 和 BT.656 两种方式, BT.656 支持隔行模式,最大支持 8 位输入< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d113430e217__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e219__20250519091516" > 支持针对图像帧中的行和列分别做裁剪< / p >
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< / li >
< / ul >
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< p class = "- topic/p p" data-ofbid = "d113430e224__20250519091516" > 目前,< span class = "- topic/ph ph" > Luban-Lite< / span > DVP 驱动已支持的 Camera 型号有:< / p >
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< ul class = "- topic/ul ul simple" id = "concept_h4d_fwt_tzb__ul_ryb_ydt_2dc" data-ofbid = "concept_h4d_fwt_tzb__ul_ryb_ydt_2dc" >
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< li class = "- topic/li li" data-ofbid = "d113430e232__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e234__20250519091516" > OV2640、OV2659、OV5640、OV7670< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d113430e238__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e240__20250519091516" > TP9950( HD-TVI/CVBS/HD Analog Video Decoder) < / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d113430e244__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e246__20250519091516" > GM7150( 低功耗 NTSC/PAL 视频解码器)< / p >
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< / li >
< / ul >
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< p class = "- topic/p p" data-ofbid = "d113430e251__20250519091516" > DVP 的硬件框图:< / p >
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< figure class = "- topic/fig fig fignone" id = "concept_h4d_fwt_tzb__id4" data-ofbid = "concept_h4d_fwt_tzb__id4" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "concept_h4d_fwt_tzb__image_syb_ydt_2dc" src = "../../../images/dvp/dvp_hw_structure.png" alt = "dvp_hw_structure" / > < / div > < br / >
< figcaption data-caption-side = "bottom" class = "- topic/title title figcapcenter" > < span class = "figtitleprefix fig--title-label" > 图< span class = "fig--title-label-number" > 1< / span > < span class = "fig--title-label-punctuation" > . < / span > < / span > < span class = "fig--title" > DVP 硬件架构< / span > < / figcaption > < / figure >
< / section >
< section class = "- topic/section section" id = "concept_h4d_fwt_tzb__section_yht_1ft_2dc" data-ofbid = "concept_h4d_fwt_tzb__section_yht_1ft_2dc" > < h2 class = "- topic/title title sectiontitle" > 应用场景< / h2 >
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< p class = "- topic/p p" data-ofbid = "d113430e273__20250519091516" > 从整个系统看, DVP 有以下应用场景:< / p >
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< ol class = "- topic/ol ol arabic simple" id = "concept_h4d_fwt_tzb__ol_tyb_ydt_2dc" data-ofbid = "concept_h4d_fwt_tzb__ol_tyb_ydt_2dc" >
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< li class = "- topic/li li" data-ofbid = "d113430e278__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e280__20250519091516" > 从传感器采集数据到内存中,然后让 DE 将其显示到屏幕上。< / p >
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< / li >
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< li class = "- topic/li li" data-ofbid = "d113430e284__20250519091516" >
< p class = "- topic/p p" data-ofbid = "d113430e286__20250519091516" > 从传感器采集数据到内存中,使用 CPU 或者 VE 进行编码,最后再将编码后的数据保存到内存中。< / p >
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< / li >
< / ol >
< figure class = "- topic/fig fig fignone" id = "concept_h4d_fwt_tzb__id5" data-ofbid = "concept_h4d_fwt_tzb__id5" >
< br / > < div class = "imagecenter" > < img class = "- topic/image image imagecenter" id = "concept_h4d_fwt_tzb__image_uyb_ydt_2dc" src = "../../../images/dvp/dvp_hw_data_flow.jpg" width = "480" alt = "dvp_hw_data_flow" / > < / div > < br / >
< figcaption data-caption-side = "bottom" class = "- topic/title title figcapcenter" > < span class = "figtitleprefix fig--title-label" > 图< span class = "fig--title-label-number" > 2< / span > < span class = "fig--title-label-punctuation" > . < / span > < / span > < span class = "fig--title" > DVP 应用的数据流< / span > < / figcaption > < / figure >
< / section >
< / div >
< / article > < / main > < / div >
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< div class = " wh_child_links d-print-none " > < nav aria-label = "Child Links" role = "navigation" class = "- topic/related-links related-links" > < ul class = "ullinks" > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/dvp/dvp_config_lite.html" > 参数配置< / a > < / strong > < / li > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/dvp/dvp_debug_lite.html" > 调试指南< / a > < / strong > < / li > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/dvp/dvp_test_lite.html" > 测试指南< / a > < / strong > < / li > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/dvp/dvp_design_lite.html" > 设计说明< / a > < / strong > < / li > < li class = "- topic/link link ulchildlink" > < strong > < a href = "../../../topics/sdk/dvp/dvp_faq_lite.html" > 常见问题< / a > < / strong > < / li > < / ul > < / nav > < / div >
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< nav role = "navigation" id = "wh_topic_toc" aria-label = "On this page" class = "col-lg-2 d-none d-lg-block navbar d-print-none" >
< div id = "wh_topic_toc_content" >
< div class = " wh_topic_toc " > < div class = "wh_topic_label" > 在本页上< / div > < ul > < li class = "section-item" > < div class = "section-title" > < a href = "#concept_h4d_fwt_tzb__id3" data-tocid = "concept_h4d_fwt_tzb__id3" > 模块特性< / a > < / div > < / li > < li class = "section-item" > < div class = "section-title" > < a href = "#concept_h4d_fwt_tzb__section_yht_1ft_2dc" data-tocid = "concept_h4d_fwt_tzb__section_yht_1ft_2dc" > 应用场景< / a > < / div > < / li > < / ul > < / div >
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< footer class = "navbar navbar-default wh_footer" >
< div class = " footer-container mx-auto " >
< title > footer def< / title >
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< style >
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.p1 {
font-family: FangZhengShuSong, Times, serif;
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.p2 {
font-family: Arial, Helvetica, sans-serif;
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.p3 {
font-family: "Lucida Console", "Courier New", monospace;
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< p class = "p1" > Copyright © 2019-2025 广东匠芯创科技有限公司. All rights reserved.< / p >
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< div class = "generation_time" >
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Update Time: 2025-05-19
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< div id = "go2top" class = "d-print-none" >
< span class = "oxy-icon oxy-icon-up" > < / span >
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< div id = "modal_img_large" class = "modal" >
< span class = "close oxy-icon oxy-icon-remove" > < / span >
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< script src = "${pd}/publishing/publishing-styles-AIC-template/js/custom.js" defer = "defer" > < / script >
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