buyfakett/reference
1
0
Fork 0
mirror of https://github.com/jaywcjlove/reference.git synced 2025-06-19 21:51:20 +08:00
Code Issues Packages Projects Releases Wiki Activity

Update ffmpeg.md (#30)

Browse Source 
编辑视频剪切部分示例 816f49004f
This commit is contained in:
jaywcjlove
2022-11-09 03:26:51 +00:00
parent ff0bb9b296
commit 6d238d2546
1 changed files with 4 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
docs/ffmpeg.html
View File

@ -339,7 +339,10 @@
<p>将输入文件的帧速率(仅对原始格式有效)强制为 1 fps，将输出文件的帧速率强制为 24 fps</p>
</div></div></div><div class="wrap h3body-not-exist col-span-2"><div class="wrap-header h3wrap"><h3 id="剪切视频部分"><a aria-hidden="true" tabindex="-1" href="#剪切视频部分"><span class="icon icon-link"></span></a>剪切视频部分</h3><div class="wrap-body">
<!--rehype:wrap-class=col-span-2-->
<pre class="wrap-text "><code class="language-bash code-highlight"><span class="code-line">$ ffmpeg <span class="token parameter variable">-i</span> <span class="token operator">&#x3C;</span>input<span class="token operator">></span> <span class="token parameter variable">-ss</span> 00:01:45 <span class="token parameter variable">-t</span> 00:02:35 <span class="token parameter variable">-vcodec</span> copy <span class="token parameter variable">-acodec</span> copy <span class="token operator">&#x3C;</span>output<span class="token operator">></span>
<pre class="wrap-text "><code class="language-bash code-highlight"><span class="code-line"><span class="token comment"># 从1分45秒开始剪切2分35秒</span>
</span><span class="code-line">$ ffmpeg <span class="token parameter variable">-i</span> <span class="token operator">&#x3C;</span>input<span class="token operator">></span> <span class="token parameter variable">-ss</span> 00:01:45 <span class="token parameter variable">-t</span> 00:02:35 <span class="token parameter variable">-vcodec</span> copy <span class="token parameter variable">-acodec</span> copy <span class="token operator">&#x3C;</span>output<span class="token operator">></span>
</span><span class="code-line"><span class="token comment"># 从1分45秒开始剪切到第4分20秒，与上一行等效</span>
</span><span class="code-line">$ ffmpeg <span class="token parameter variable">-i</span> <span class="token operator">&#x3C;</span>input<span class="token operator">></span> <span class="token parameter variable">-ss</span> 00:01:45 <span class="token parameter variable">-to</span> 00:04:20 <span class="token parameter variable">-codec</span> copy <span class="token operator">&#x3C;</span>output<span class="token operator">></span>
</span><span class="code-line">$ ffmpeg <span class="token parameter variable">-ss</span> 00:00:30 <span class="token parameter variable">-i</span> orginalfile.mpg <span class="token parameter variable">-t</span> 00:00:05 <span class="token parameter variable">-vcodec</span> copy <span class="token parameter variable">-acodec</span> copy newfile.mpg
</span><span class="code-line"><span class="token comment"># 从 4.5 秒开始的 5 秒长的视频</span>
</span><span class="code-line">$ ffmpeg <span class="token parameter variable">-i</span> in.mp4 <span class="token parameter variable">-ss</span> <span class="token number">4.5</span> <span class="token parameter variable">-t</span> <span class="token number">5</span> out.mp4