技术分享_ 短视频背景循环与长音频合并制作新视频

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发布日期: 2023-08-25 23:23:37

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用ffmpeg将短视频背景循环与长音频合并制作新视频

<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">举例觅知网&nbsp; www.51miz.com<p class="p2" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;; min-height: 15px;">搜索关键词：<p class="p2" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;; min-height: 15px;">唯美 大自然&nbsp;<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">https://www.51miz.com/so-shipin/3661359.html<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">找到需要的视频，进行下载。（需成为vip才能下载哈）<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">div.element-box-detail<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">div.element pr oh<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">a.image-box<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">video.video-preview none<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;"> <p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">下载的视频10秒20秒，音频较长时，合并视频和音频，需要重复视频。<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">怎么用ffmpeg合并视频和音频，在音频未结束时循环视频呢？<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">1.<span style="color: rgb(51, 51, 51); font-family: &quot;pingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; white-space-collapse: preserve; font-size: 14px;">如果您想合并新的音频和视频重复视频，直到音频结束，您可以尝试这样做：可以尝试这样做：<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;">```<span style="color: rgb(24, 24, 24); font-family: &quot;Pingfang SC&quot;, &quot;helvetica neuepingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; white-space: pre; font-size: 14px;">ffmpeg -stream_loop -1 -i input.mp4 -i input.mp3 -shortest -map 0:v:0 -map 1:a:0 -y out.mp4```<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;"> <p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;"><span style="color: rgb(51, 51, 51); font-family: &quot;pingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; white-space-collapse: preserve;">使用-stream_loop -1表示无限循环input.mp4，使用-shortest表示当最短的输入流结束时结束编码。这里最短的输入流将是input.mp3。<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;"><span style="color: rgb(51, 51, 51); font-family: &quot;pingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; white-space-collapse: preserve;"> <p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;"><span style="color: rgb(51, 51, 51); font-family: &quot;pingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; white-space-collapse: preserve;">2.<span style="color: rgb(51, 51, 51); font-family: &quot;pingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; white-space-collapse: preserve;">如果你想合并新的音频和视频重复音频，直到视频结束，你可以尝试这样做：
<span style="color: rgb(24, 24, 24); font-family: &quot;Pingfang SC&quot;, &quot;helvetica neuepingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; white-space: pre;">```ffmpeg -i input.mp4 -stream_loop -1 -i input.mp3 -shortest -map 0:v:0 -map 1:a:0 -y out.mp4```<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; font-size: 13px; line-height: normal; font-family: &quot;Helvetica Neue&quot;;"><span style="color: rgb(24, 24, 24); font-family: &quot;Pingfang SC&quot;, &quot;helvetica neuepingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; white-space: pre;"> <p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; line-height: normal;"><span style="font-family: &quot;Pingfang SC&quot;, &quot;helvetica neuepingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; color: rgb(24, 24, 24); white-space: pre;">如何加上字幕呢？那就把上面的视频，再用软件处理加上字幕。<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; line-height: normal;"><span style="font-family: &quot;Pingfang SC&quot;, &quot;helvetica neuepingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; color: rgb(24, 24, 24); white-space: pre;"> <p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; line-height: normal;"><span style="font-family: &quot;Pingfang SC&quot;, &quot;helvetica neuepingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; color: rgb(24, 24, 24); white-space: pre;">其他素材网站：<p class="p1" style="font-variant-numeric: normal; font-variant-east-asian: normal; font-variant-alternates: normal; font-kerning: auto; font-optical-sizing: auto; font-feature-settings: normal; font-variation-settings: normal; font-stretch: normal; line-height: normal;"><span style="font-family: &quot;Pingfang SC&quot;, &quot;helvetica neuepingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; color: rgb(24, 24, 24); white-space: pre;"> <span style="font-family: &quot;pingfang SC&quot;, &quot;helvetica neue&quot;, arial, &quot;hiragino sans gb&quot;, &quot;microsoft yahei ui&quot;, &quot;microsoft yahei&quot;, simsun, sans-serif; font-size: 14px; color: rgb(51, 51, 51); white-space-collapse: preserve;">潮点视频 https://shipin520.com/

20个无版权可免费商用的音乐素材网站-建议收藏
https://zhuanlan.zhihu.com/p/534205386
（其中：https://musopen.org/music/relaxing/）

16个免费商用图片网站
https://zhuanlan.zhihu.com/p/80654726
（其中：https://www.pexels.com/search/videos/forest/）<h1 class="Post-Title" style="font-variant-numeric: inherit; font-variant-east-asian: inherit; font-variant-alternates: inherit; font-variant-position: inherit; font-weight: 600; font-stretch: inherit; font-size: 24px; line-height: 1.22; font-family: -apple-system, &quot;system-ui&quot;, &quot;Helvetica Neue&quot;, &quot;PingFang SC&quot;, &quot;Microsoft YaHei&quot;, &quot;Source Han Sans SC&quot;, &quot;Noto Sans CJK SC&quot;, &quot;WenQuanYi Micro Hei&quot;, sans-serif; font-optical-sizing: inherit; font-kerning: inherit; font-feature-settings: inherit; font-variation-settings: inherit; margin-top: 24px; margin-bottom: 24px; font-synthesis: style; overflow-wrap: break-word; color: rgb(25, 27, 31);">23个无版权可商用的高清视频素材网站-剪辑视频必备&nbsp;https://zhuanlan.zhihu.com/p/533760558</h1>

yyii

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