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<meta name="description" content="Story Today, I have recorded a video for one of my classes and I was required to upload it till midnight. The video was perfect except for a few seconds where I misspelled some words and started again. I had to remove that part from the video before uploading it. Since I was low on time, I thought that I better use a GUI program to do this job. I opened up Kdenlive and jumped into editing my video. It was my first time using it so I spent some time to cut and delete the parts that I want to get rid of. When I was ready, I clicked Render button to render my video. It was waaay too slow than I expected. Since I have nothing to do while waiting for render to finish, I thought I could give ffmpeg a shot.">
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<meta itemprop="description" content="StoryToday, I have recorded a video for one of my classes and I was required to upload it till midnight. The video was perfect except for a few seconds where I misspelled some words and started again. I had to remove that part from the video before uploading it. Since I was low on time, I thought that I better use a GUI program to do this job. I opened up Kdenlive and jumped into editing my video. It was my first time using it so I spent some time to cut and delete the parts that I want to get rid of. When I was ready, I clicked Render button to render my video. It was waaay too slow than I expected. Since I have nothing to do while waiting for render to finish, I thought I could give ffmpeg a shot.">
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<h1 id="page-title" class="page__title" itemprop="headline">Using ffmpeg for Simple Video Editing
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<h2 id="story">Story</h2>
<p>Today, I have recorded a video for one of my classes and I was required to upload it till midnight. The video was perfect except for a few seconds where I misspelled some words and started again. I had to remove that part from the video before uploading it. Since I was low on time, I thought that I better use a GUI program to do this job. I opened up <a href="https://kdenlive.org/en/">Kdenlive</a> and jumped into editing my video. It was my first time using it so I spent some time to cut and delete the parts that I want to get rid of. When I was ready, I clicked Render button to render my video. It was waaay too slow than I expected. Since I have nothing to do while waiting for render to finish, I thought I could give <code class="language-plaintext highlighter-rouge">ffmpeg</code> a shot.</p>
<h2 id="let-the-show-begin">Let the show begin</h2>
<p>Like Kdenlive, I have never used <code class="language-plaintext highlighter-rouge">ffmpeg</code> before. Like every normal Linux user do, I opened up a terminal and typed <code class="language-plaintext highlighter-rouge">man ffmpeg</code> to learn how to use it… Just kidding :D I opened a browser and typed <em>“ffmpeg cut video by time”</em>. Not the best search query, but it was good enough to find what I am looking for as the <a href="https://stackoverflow.com/questions/18444194/cutting-the-videos-based-on-start-and-end-time-using-ffmpeg">first result</a>.</p>
<h3 id="cutting-the-videos-based-on-start-and-end-time">Cutting the videos based on start and end time</h3>
<p>According to answers on the page I mentioned, I run the following commands to cut my video into two parts:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code>ffmpeg <span class="nt">-ss</span> 00:00:00 <span class="nt">-to</span> 00:01:55 <span class="nt">-i</span> input.mov <span class="nt">-c</span> copy part1.mp4 <span class="c"># take from 00:00 to 01:55</span>
ffmpeg <span class="nt">-ss</span> 00:02:03 <span class="nt">-to</span> 00:05:17 <span class="nt">-i</span> input.mov <span class="nt">-c</span> copy part2.mp4 <span class="c"># take from 02:03 to 05:17</span>
</code></pre></div></div>
<p>These two commands run <strong>instantly</strong>! Kdenlive was still rendering… The progress was 46%. Meh… I said “Duck it, I am gonna use ffmpeg only” and cancelled the rendering.</p>
<h3 id="concatenating-the-video-files">Concatenating the video files</h3>
<p>Now we have two videos that we want to join. Guess what will be our next search query? <em>“ffmpeg join videos”</em>. And <a href="https://stackoverflow.com/questions/7333232/how-to-concatenate-two-mp4-files-using-ffmpeg">here</a> is the first result:</p>
<div class="language-bash highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nb">echo </span>file part1.mp4 <span class="o">&gt;&gt;</span> mylist.txt
<span class="nb">echo </span>file part2.mp4 <span class="o">&gt;&gt;</span> mylist.txt
ffmpeg <span class="nt">-f</span> concat <span class="nt">-i</span> mylist.txt <span class="nt">-c</span> copy result.mp4
</code></pre></div></div>
<p>And we are DONE! How easy was that? Whole process took about 10 minutes including my search on the internet. If I continued waiting for Kdenlive to finish rendering, I would probably be still waiting at that time. I love the power of command line!</p>
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<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.2.1">Jekyll</generator><link href="https://sahinakkaya.dev/feed.xml" rel="self" type="application/atom+xml" /><link href="https://sahinakkaya.dev/" rel="alternate" type="text/html" /><updated>2022-01-08T15:13:02+00:00</updated><id>https://sahinakkaya.dev/feed.xml</id><title type="html">Şahin Akkaya’s Personal Page</title><subtitle>Şahin Akkaya's personal blog - a perfectionist who likes to tinker everything until it is just right. Get ready to find some sweet tips that will boost your productivity and make you fall in love with your computer.</subtitle><author><name>Şahin Akkaya</name></author><entry><title type="html">Automatically Build and Deploy Your Site using GitHub Actions and Webhooks</title><link href="https://sahinakkaya.dev/2022/01/04/build-and-deploy-automatically.html" rel="alternate" type="text/html" title="Automatically Build and Deploy Your Site using GitHub Actions and Webhooks" /><published>2022-01-04T17:40:00+00:00</published><updated>2022-01-04T17:40:00+00:00</updated><id>https://sahinakkaya.dev/2022/01/04/build-and-deploy-automatically</id><content type="html" xml:base="https://sahinakkaya.dev/2022/01/04/build-and-deploy-automatically.html">&lt;p&gt;In this post I will explain how you can use GitHub to automate the build and deployment processes that you have. I am going to automate the deployment of this site but you can do whatever you want. Just understanding the basics will be enough.&lt;/p&gt;
<?xml version="1.0" encoding="utf-8"?><feed xmlns="http://www.w3.org/2005/Atom" ><generator uri="https://jekyllrb.com/" version="4.2.1">Jekyll</generator><link href="https://sahinakkaya.dev/feed.xml" rel="self" type="application/atom+xml" /><link href="https://sahinakkaya.dev/" rel="alternate" type="text/html" /><updated>2022-01-22T00:10:19+00:00</updated><id>https://sahinakkaya.dev/feed.xml</id><title type="html">Şahin Akkaya’s Personal Page</title><subtitle>Şahin Akkaya's personal blog - a perfectionist who likes to tinker everything until it is just right. Get ready to find some sweet tips that will boost your productivity and make you fall in love with your computer.</subtitle><author><name>Şahin Akkaya</name></author><entry><title type="html">Using ffmpeg for Simple Video Editing</title><link href="https://sahinakkaya.dev/2022/01/21/ffmpeg-to-rescue.html" rel="alternate" type="text/html" title="Using ffmpeg for Simple Video Editing" /><published>2022-01-21T20:40:00+00:00</published><updated>2022-01-21T20:40:00+00:00</updated><id>https://sahinakkaya.dev/2022/01/21/ffmpeg-to-rescue</id><content type="html" xml:base="https://sahinakkaya.dev/2022/01/21/ffmpeg-to-rescue.html">&lt;h2 id=&quot;story&quot;&gt;Story&lt;/h2&gt;
&lt;p&gt;Today, I have recorded a video for one of my classes and I was required to upload it till midnight. The video was perfect except for a few seconds where I misspelled some words and started again. I had to remove that part from the video before uploading it. Since I was low on time, I thought that I better use a GUI program to do this job. I opened up &lt;a href=&quot;https://kdenlive.org/en/&quot;&gt;Kdenlive&lt;/a&gt; and jumped into editing my video. It was my first time using it so I spent some time to cut and delete the parts that I want to get rid of. When I was ready, I clicked Render button to render my video. It was waaay too slow than I expected. Since I have nothing to do while waiting for render to finish, I thought I could give &lt;code class=&quot;language-plaintext highlighter-rouge&quot;&gt;ffmpeg&lt;/code&gt; a shot.&lt;/p&gt;
&lt;h2 id=&quot;let-the-show-begin&quot;&gt;Let the show begin&lt;/h2&gt;
&lt;p&gt;Like Kdenlive, I have never used &lt;code class=&quot;language-plaintext highlighter-rouge&quot;&gt;ffmpeg&lt;/code&gt; before. Like every normal Linux user do, I opened up a terminal and typed &lt;code class=&quot;language-plaintext highlighter-rouge&quot;&gt;man ffmpeg&lt;/code&gt; to learn how to use it… Just kidding :D I opened a browser and typed &lt;em&gt;“ffmpeg cut video by time”&lt;/em&gt;. Not the best search query, but it was good enough to find what I am looking for as the &lt;a href=&quot;https://stackoverflow.com/questions/18444194/cutting-the-videos-based-on-start-and-end-time-using-ffmpeg&quot;&gt;first result&lt;/a&gt;.&lt;/p&gt;
&lt;h3 id=&quot;cutting-the-videos-based-on-start-and-end-time&quot;&gt;Cutting the videos based on start and end time&lt;/h3&gt;
&lt;p&gt;According to answers on the page I mentioned, I run the following commands to cut my video into two parts:&lt;/p&gt;
&lt;div class=&quot;language-bash highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;ffmpeg &lt;span class=&quot;nt&quot;&gt;-ss&lt;/span&gt; 00:00:00 &lt;span class=&quot;nt&quot;&gt;-to&lt;/span&gt; 00:01:55 &lt;span class=&quot;nt&quot;&gt;-i&lt;/span&gt; input.mov &lt;span class=&quot;nt&quot;&gt;-c&lt;/span&gt; copy part1.mp4 &lt;span class=&quot;c&quot;&gt;# take from 00:00 to 01:55&lt;/span&gt;
ffmpeg &lt;span class=&quot;nt&quot;&gt;-ss&lt;/span&gt; 00:02:03 &lt;span class=&quot;nt&quot;&gt;-to&lt;/span&gt; 00:05:17 &lt;span class=&quot;nt&quot;&gt;-i&lt;/span&gt; input.mov &lt;span class=&quot;nt&quot;&gt;-c&lt;/span&gt; copy part2.mp4 &lt;span class=&quot;c&quot;&gt;# take from 02:03 to 05:17&lt;/span&gt;
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;These two commands run &lt;strong&gt;instantly&lt;/strong&gt;! Kdenlive was still rendering… The progress was 46%. Meh… I said “Duck it, I am gonna use ffmpeg only” and cancelled the rendering.&lt;/p&gt;
&lt;h3 id=&quot;concatenating-the-video-files&quot;&gt;Concatenating the video files&lt;/h3&gt;
&lt;p&gt;Now we have two videos that we want to join. Guess what will be our next search query? &lt;em&gt;“ffmpeg join videos”&lt;/em&gt;. And &lt;a href=&quot;https://stackoverflow.com/questions/7333232/how-to-concatenate-two-mp4-files-using-ffmpeg&quot;&gt;here&lt;/a&gt; is the first result:&lt;/p&gt;
&lt;div class=&quot;language-bash highlighter-rouge&quot;&gt;&lt;div class=&quot;highlight&quot;&gt;&lt;pre class=&quot;highlight&quot;&gt;&lt;code&gt;&lt;span class=&quot;nb&quot;&gt;echo &lt;/span&gt;file part1.mp4 &lt;span class=&quot;o&quot;&gt;&amp;gt;&amp;gt;&lt;/span&gt; mylist.txt
&lt;span class=&quot;nb&quot;&gt;echo &lt;/span&gt;file part2.mp4 &lt;span class=&quot;o&quot;&gt;&amp;gt;&amp;gt;&lt;/span&gt; mylist.txt
ffmpeg &lt;span class=&quot;nt&quot;&gt;-f&lt;/span&gt; concat &lt;span class=&quot;nt&quot;&gt;-i&lt;/span&gt; mylist.txt &lt;span class=&quot;nt&quot;&gt;-c&lt;/span&gt; copy result.mp4
&lt;/code&gt;&lt;/pre&gt;&lt;/div&gt;&lt;/div&gt;
&lt;p&gt;And we are DONE! How easy was that? Whole process took about 10 minutes including my search on the internet. If I continued waiting for Kdenlive to finish rendering, I would probably be still waiting at that time. I love the power of command line!&lt;/p&gt;</content><author><name>Şahin Akkaya</name></author><category term="cli" /><category term="ffmpeg" /><summary type="html">Story Today, I have recorded a video for one of my classes and I was required to upload it till midnight. The video was perfect except for a few seconds where I misspelled some words and started again. I had to remove that part from the video before uploading it. Since I was low on time, I thought that I better use a GUI program to do this job. I opened up Kdenlive and jumped into editing my video. It was my first time using it so I spent some time to cut and delete the parts that I want to get rid of. When I was ready, I clicked Render button to render my video. It was waaay too slow than I expected. Since I have nothing to do while waiting for render to finish, I thought I could give ffmpeg a shot.</summary></entry><entry><title type="html">Automatically Build and Deploy Your Site using GitHub Actions and Webhooks</title><link href="https://sahinakkaya.dev/2022/01/04/build-and-deploy-automatically.html" rel="alternate" type="text/html" title="Automatically Build and Deploy Your Site using GitHub Actions and Webhooks" /><published>2022-01-04T17:40:00+00:00</published><updated>2022-01-04T17:40:00+00:00</updated><id>https://sahinakkaya.dev/2022/01/04/build-and-deploy-automatically</id><content type="html" xml:base="https://sahinakkaya.dev/2022/01/04/build-and-deploy-automatically.html">&lt;p&gt;In this post I will explain how you can use GitHub to automate the build and deployment processes that you have. I am going to automate the deployment of this site but you can do whatever you want. Just understanding the basics will be enough.&lt;/p&gt;
&lt;h2 id=&quot;introduction-to-github-actions-and-webhooks&quot;&gt;Introduction to GitHub Actions and Webhooks&lt;/h2&gt;
&lt;p&gt;Let me start by explaining what are GitHub Actions and GitHub Webhooks.&lt;/p&gt;

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<a href="/2022/01/21/ffmpeg-to-rescue.html" rel="permalink">Using ffmpeg for Simple Video Editing
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<time datetime="2022-01-21T20:40:00+00:00">January 21, 2022</time>
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Today, I have recorded a video for one of my classes and I was required to upload it till midnight. The video was perfect except for a few seconds wher...</p>
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