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class="shortdesc">SPI ENC、CE、eFuse 等安全模块的介绍和使用说明。</p></div></div></div></li></ul></li></ul></div>
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<div class=" wh_topic_content body "><main role="main"><article class="- topic/topic concept/concept topic concept" role="article" aria-labelledby="ariaid-title1"><span class="edit-link" style="font-size:12px; opacity:0.6; text-align:right; vertical-align:middle"><a target="_blank" href="http://172.16.35.88/tasks/jdssno1uvvbf2mltu9kb9v3if05d5gopuakboe8hlud18rma/edit/F:/aicdita/aicdita-cn/topics/sdk/dvp/dvp_interface_lite.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">接口设计</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;">
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Read time: 1 minute(s)
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</div><div class="- topic/body concept/conbody body conbody"><section xml:lang="zh-CN" lang="zh-CN" class="- topic/section section" id="dvp-interface-design__section_gys_tkt_2dc" data-ofbid="dvp-interface-design__section_gys_tkt_2dc"><h2 class="- topic/title title sectiontitle">Driver 层接口设计</h2>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_fyt_1kt_2dc" data-ofbid="dvp-interface-design__table_fyt_1kt_2dc" data-cols="2"><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">aic_dvp_probe</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_fyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_fyt_1kt_2dc__entry__2">int aic_dvp_probe(void)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__2">完成中断申请、管理状态初始化等</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_fyt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_gyt_1kt_2dc" data-ofbid="dvp-interface-design__table_gyt_1kt_2dc" data-cols="2"><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"> 2</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_open</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_gyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_gyt_1kt_2dc__entry__2">int aic_dvp_open(void)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__2">使能时钟、使能 DVP 控制器、初始化 Buf 链表信息等</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_gyt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_hyt_1kt_2dc" data-ofbid="dvp-interface-design__table_hyt_1kt_2dc" data-cols="2"><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"> 3</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_close</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_hyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_hyt_1kt_2dc__entry__2">int aic_dvp_close(void)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__2">关闭时钟、关闭 DVP 控制器</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_hyt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_iyt_1kt_2dc" data-ofbid="dvp-interface-design__table_iyt_1kt_2dc" data-cols="2"><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"> 4</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_set_in_fmt</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_iyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_iyt_1kt_2dc__entry__2">int aic_dvp_set_in_fmt(struct mpp_video_fmt *fmt)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__2">设置 DVP 的输入视频格式</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__2">fmt - 指向 struct mpp_video_fmt 类型的指针</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_iyt_1kt_2dc__entry__2">fmt 一般是从 Camera 设备中读取到的格式信息 </td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_jyt_1kt_2dc" data-ofbid="dvp-interface-design__table_jyt_1kt_2dc" data-cols="2"><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"> 5</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_set_out_fmt</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_jyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_jyt_1kt_2dc__entry__2">int aic_dvp_set_out_fmt(struct dvp_out_fmt *fmt)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__2">设置 DVP 的输出图像格式</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__2">fmt - 指向 struct dvp_out_fmt 类型的指针</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__2">0，成功</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_jyt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_kyt_1kt_2dc" data-ofbid="dvp-interface-design__table_kyt_1kt_2dc" data-cols="2"><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"> 6</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_stream_on</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_kyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_kyt_1kt_2dc__entry__2">int aic_dvp_stream_on(void)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__2">启动视频流</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_kyt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_lyt_1kt_2dc" data-ofbid="dvp-interface-design__table_lyt_1kt_2dc" data-cols="2"><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"> 7</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_stream_off</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_lyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_lyt_1kt_2dc__entry__2">int aic_dvp_stream_off(void)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__2">关闭视频流</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__2">无</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_lyt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
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<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_myt_1kt_2dc" data-ofbid="dvp-interface-design__table_myt_1kt_2dc" data-cols="2"><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"> 8</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_req_buf</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_myt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_myt_1kt_2dc__entry__2">int aic_dvp_req_buf(char *buf, u32 size, struct vin_video_buf
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*vbuf)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_myt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_myt_1kt_2dc__entry__2">按照给定的 Video Buf 配置信息从内存池中申请 Buf</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_myt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_myt_1kt_2dc__entry__2">
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||
<div class="- topic/div div">
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||
<div class="- topic/div div">buf - 指向内存池的指针</div>
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||
<div class="- topic/div div">size - 内存池的总大小</div>
|
||
<div class="- topic/div div">vbuf - Video Buf 的配置信息</div>
|
||
</div>
|
||
</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_myt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_myt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_myt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_myt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_nyt_1kt_2dc" data-ofbid="dvp-interface-design__table_nyt_1kt_2dc" data-cols="2"><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"> 9</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_q_buf</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_nyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_nyt_1kt_2dc__entry__2">int aic_dvp_q_buf(u32 index)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__2">释放指定 index 的 Buf 进入空闲队列（queued_list）</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__2">index - Buf 的索引号</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_nyt_1kt_2dc__entry__2">- </td></tr></tbody></table></div>
|
||
<div class="table-container"><table class="- topic/table table frame-all" id="dvp-interface-design__table_oyt_1kt_2dc" data-ofbid="dvp-interface-design__table_oyt_1kt_2dc" data-cols="2"><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"> 10</span><span class="table--title-label-punctuation">. </span></span><span class="table--title">aic_dvp_dq_buf</span></caption><colgroup><col style="width:16.666666666666664%"/><col style="width:83.33333333333334%"/></colgroup><thead class="- topic/thead thead"><tr class="- topic/row"><th class="- topic/entry entry colsep-1 rowsep-1" id="dvp-interface-design__table_oyt_1kt_2dc__entry__1">函数原型</th><th class="- topic/entry entry colsep-0 rowsep-1" id="dvp-interface-design__table_oyt_1kt_2dc__entry__2">int aic_dvp_dq_buf(u32 *pindex)</th></tr></thead><tbody class="- topic/tbody tbody"><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__1">功能说明</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__2">从 DVP 处理完成后的队列（done_list）中获取一个 Buf</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__1">参数定义</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__2">pindex - 用于保存获取到的 Buf 索引号</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-1" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__1">返回值</td><td class="- topic/entry entry colsep-0 rowsep-1" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__2">0，成功；<0，失败</td></tr><tr class="- topic/row"><td class="- topic/entry entry colsep-1 rowsep-0" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__1">注意事项</td><td class="- topic/entry entry colsep-0 rowsep-0" headers="dvp-interface-design__table_oyt_1kt_2dc__entry__2">-</td></tr></tbody></table></div>
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