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concept_nww_hzh_pzb-d5856e4868-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-interface-sdk.html" id="concept_nww_hzh_pzb-d5856e4868-link">接口</a><div class="wh-tooltip"><p class="shortdesc">CAN<span class="ph">、CAP</span>、CIR、GPAI、GPIO、I2C、PSADC、PWM 等接口模块的介绍和使用说明。</p></div></div></div></li><li role="treeitem" aria-expanded="false"><div data-tocid="chapter-safety-d5856e6083" class="topicref" data-id="chapter-safety" data-state="not-ready"><span role="button" tabindex="0" aria-labelledby="button-expand-action chapter-safety-d5856e6083-link" class="wh-expand-btn"></span><div class="title"><a href="../../../topics/chapter-title/chapter-safety-sdk.html" id="chapter-safety-d5856e6083-link">安全</a><div class="wh-tooltip"><p 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/mpp/mpp_faq.dita">Edit online</a></span><h1 class="- topic/title title topictitle1" id="ariaid-title1">常见问题</h1><div class="date inPage">15 Jan 2024</div><div style="color: gray;"></div><div class="- topic/body concept/conbody body conbody"><section class="- topic/section section" id="mpp_common_issues__section_bts_yzh_d1c" data-ofbid="mpp_common_issues__section_bts_yzh_d1c"><h2 class="- topic/title title sectiontitle">解码后图像花屏</h2>
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<div class="- topic/div div">
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<div class="- topic/div div section" id="mpp_common_issues__id3">
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<strong class="+ topic/ph hi-d/b ph b">现象</strong>
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<p class="- topic/p p" data-ofbid="d234972e36__20250121171655">解码后的图像出现花屏现象。</p></div>
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<div class="- topic/div div section" id="mpp_common_issues__id4">
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<strong class="+ topic/ph hi-d/b ph b">原因分析</strong>
|
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<p class="- topic/p p" data-ofbid="d234972e44__20250121171655">逐步排除以下原因：</p><ol class="- topic/ol ol arabic simple" id="mpp_common_issues__ol_gdz_tqt_2dc" data-ofbid="mpp_common_issues__ol_gdz_tqt_2dc"><li class="- topic/li li" data-ofbid="d234972e47__20250121171655">
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<p class="- topic/p p" data-ofbid="d234972e49__20250121171655">是否源文件本身有数据错误，可使用 PC 端视频播放软件或图像浏览器查看，是否有花屏现象;</p>
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</li><li class="- topic/li li" data-ofbid="d234972e52__20250121171655">
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<p class="- topic/p p" data-ofbid="d234972e54__20250121171655">通过保存解码帧数据，在 PC 端查看图像是否有花屏现象，如果 PC 端查看图像正常，则需要排查是否设置图像格式错误，或排查 Display
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模块相关原因。</p>
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</li><li class="- topic/li li" data-ofbid="d234972e57__20250121171655">
|
||
<p class="- topic/p p" data-ofbid="d234972e59__20250121171655">码流解析是否正确，相关 VE 寄存器信息是否配置正确，具体请查看 VE Spec 说明。</p>
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</li></ol></div>
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</div>
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</section><section class="- topic/section section" id="mpp_common_issues__section_tfx_d13_d1c" data-ofbid="mpp_common_issues__section_tfx_d13_d1c"><h2 class="- topic/title title sectiontitle">图像解码报错</h2><p class="- topic/p p" data-ofbid="d234972e67__20250121171655"><strong class="+ topic/ph hi-d/b ph b">现象</strong></p><p class="- topic/p p" data-ofbid="d234972e70__20250121171655">解码异常报错，未得到解码后的视频帧，或者视频帧数据出错。</p><strong class="+ topic/ph hi-d/b ph b">原因分析</strong><p class="- topic/p p" data-ofbid="d234972e74__20250121171655">逐步排除以下原因：</p><ol class="- topic/ol ol" id="mpp_common_issues__ol_nym_vtf_d1c" data-ofbid="mpp_common_issues__ol_nym_vtf_d1c"><li class="- topic/li li" data-ofbid="d234972e77__20250121171655">
|
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<p class="- topic/p p" data-ofbid="d234972e79__20250121171655">源文件是否是 VE 驱动支持的媒体文件格式，具体请参考模块介绍的硬件编解码格式章节。</p>
|
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</li><li class="- topic/li li" data-ofbid="d234972e82__20250121171655">
|
||
<p class="- topic/p p" data-ofbid="d234972e84__20250121171655">源文件是否损坏，可参考 PC 端是否可正常播放。</p>
|
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</li><li class="- topic/li li" data-ofbid="d234972e87__20250121171655">
|
||
<p class="- topic/p p" data-ofbid="d234972e89__20250121171655">码流解析是否正确，相关 VE 寄存器信息是否配置正确。</p>
|
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</li></ol><p class="- topic/p p" data-ofbid="d234972e92__20250121171655">解码报错后，VE 驱动中返回了解码当前帧的寄存器状态信息，请参考 Spec 说明对应分析。</p></section></div></article></main></div>
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<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="#mpp_common_issues__section_bts_yzh_d1c" data-tocid="mpp_common_issues__section_bts_yzh_d1c">解码后图像花屏</a></div></li><li class="section-item"><div class="section-title"><a href="#mpp_common_issues__section_tfx_d13_d1c" data-tocid="mpp_common_issues__section_tfx_d13_d1c">图像解码报错</a></div></li></ul></div>
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