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	<title>Comments on: ffmpeg &#8211; capture screenshot from a video file</title>
	<atom:link href="http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/</link>
	<description>Just another WordPress weblog</description>
	<lastBuildDate>Sun, 27 Nov 2011 21:08:44 -0500</lastBuildDate>
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		<item>
		<title>By: shixinpeng</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-11655</link>
		<dc:creator>shixinpeng</dc:creator>
		<pubDate>Fri, 18 Nov 2011 08:00:37 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-11655</guid>
		<description>Hi,I have a question!
There is a TS file named love.ts(about 1GB) on my SUSE machine, and I use this command to take a snapshot:
./ffmpeg -ss 00:00:18 -vframes 1 -i /home/sxp/love.ts -y -f image2 -s 900x900 sxp.jpg

So it takes a long long time!
But there is also a TS file named gdxw.ts (about 17MB), and I use the same command to take a snapshot. It takes a very short time.

What shall I do?</description>
		<content:encoded><![CDATA[<p>Hi,I have a question!<br />
There is a TS file named love.ts(about 1GB) on my SUSE machine, and I use this command to take a snapshot:<br />
./ffmpeg -ss 00:00:18 -vframes 1 -i /home/sxp/love.ts -y -f image2 -s 900&#215;900 sxp.jpg</p>
<p>So it takes a long long time!<br />
But there is also a TS file named gdxw.ts (about 17MB), and I use the same command to take a snapshot. It takes a very short time.</p>
<p>What shall I do?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: ffmpeg nas</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-6606</link>
		<dc:creator>ffmpeg nas</dc:creator>
		<pubDate>Thu, 25 Nov 2010 23:20:10 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-6606</guid>
		<description>[...]  [...]</description>
		<content:encoded><![CDATA[<p>[...]  [...]</p>
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	<item>
		<title>By: huangyi</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-6290</link>
		<dc:creator>huangyi</dc:creator>
		<pubDate>Fri, 15 Oct 2010 09:14:47 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-6290</guid>
		<description>Hi, Thank you for suggestion

I try &#039;-ss 00:00:03.488&#039;  but it doesn&#039;t work

And I changed the -t parameter from 0.001 to 0.08 and it can capture picture now. I find the 0.08 from ffmpeg output &quot;frame=1 fps=0 q=0.0 Lsize=-0kB time=0.08 bitrate=-2.1kbits/s video:21kB audio:0kB global headers:0kB muxing overhead -100.100205%&quot;
Do you know the usage of -t parameters when captures image from video and how I input the correct parameter.</description>
		<content:encoded><![CDATA[<p>Hi, Thank you for suggestion</p>
<p>I try &#8216;-ss 00:00:03.488&#8242;  but it doesn&#8217;t work</p>
<p>And I changed the -t parameter from 0.001 to 0.08 and it can capture picture now. I find the 0.08 from ffmpeg output &#8220;frame=1 fps=0 q=0.0 Lsize=-0kB time=0.08 bitrate=-2.1kbits/s video:21kB audio:0kB global headers:0kB muxing overhead -100.100205%&#8221;<br />
Do you know the usage of -t parameters when captures image from video and how I input the correct parameter.</p>
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	</item>
	<item>
		<title>By: Kevin</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-6249</link>
		<dc:creator>Kevin</dc:creator>
		<pubDate>Fri, 08 Oct 2010 21:53:31 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-6249</guid>
		<description>huangyi,

Try &#039;-ss 00:00:03.488&#039; instead</description>
		<content:encoded><![CDATA[<p>huangyi,</p>
<p>Try &#8216;-ss 00:00:03.488&#8242; instead</p>
]]></content:encoded>
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	<item>
		<title>By: huangyi</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-6192</link>
		<dc:creator>huangyi</dc:creator>
		<pubDate>Thu, 30 Sep 2010 03:35:18 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-6192</guid>
		<description>Hi, I have a question.
I want to capture the screenshot at 3.488 second for example 
But it does not output screenshot by the above command
In my test, -ss 1 1.5 2 2.5 ... works fine and others not 
Can you explain why it happens and how can I capture screenshot at x.xxx time</description>
		<content:encoded><![CDATA[<p>Hi, I have a question.<br />
I want to capture the screenshot at 3.488 second for example<br />
But it does not output screenshot by the above command<br />
In my test, -ss 1 1.5 2 2.5 &#8230; works fine and others not<br />
Can you explain why it happens and how can I capture screenshot at x.xxx time</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Leonardo</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-6005</link>
		<dc:creator>Leonardo</dc:creator>
		<pubDate>Fri, 06 Aug 2010 13:02:23 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-6005</guid>
		<description>Very Grand!!!</description>
		<content:encoded><![CDATA[<p>Very Grand!!!</p>
]]></content:encoded>
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	<item>
		<title>By: dan</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-5813</link>
		<dc:creator>dan</dc:creator>
		<pubDate>Wed, 21 Apr 2010 07:32:52 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-5813</guid>
		<description>I&#039;m using this, and is way more efficient:
ffmpeg -ss 00:20:00 -vframes 1 -i file.avi -y -f image2 out.png

I think the ss needs to go before the input so it does a fast skip.</description>
		<content:encoded><![CDATA[<p>I&#8217;m using this, and is way more efficient:<br />
ffmpeg -ss 00:20:00 -vframes 1 -i file.avi -y -f image2 out.png</p>
<p>I think the ss needs to go before the input so it does a fast skip.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Tombe</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-5291</link>
		<dc:creator>Tombe</dc:creator>
		<pubDate>Sun, 24 Jan 2010 15:33:53 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-5291</guid>
		<description>Hello,

Your code does the trick.  Thanks.  Does ffmpeg allows the user to take a snapshot of a movie directly by accessing a DVD disc or a video_ts folder in a similar way?  If yes, how, please?</description>
		<content:encoded><![CDATA[<p>Hello,</p>
<p>Your code does the trick.  Thanks.  Does ffmpeg allows the user to take a snapshot of a movie directly by accessing a DVD disc or a video_ts folder in a similar way?  If yes, how, please?</p>
]]></content:encoded>
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	<item>
		<title>By: rick</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-5001</link>
		<dc:creator>rick</dc:creator>
		<pubDate>Thu, 17 Dec 2009 21:05:50 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-5001</guid>
		<description>Hi Snowcore,

&quot;-sameq&quot; means use the same quality of the source video. 

I read the long &quot;man ffmpeg&quot;, I couldn&#039;t find where to adjust the quality other than just &quot;-sameq&quot;</description>
		<content:encoded><![CDATA[<p>Hi Snowcore,</p>
<p>&#8220;-sameq&#8221; means use the same quality of the source video. </p>
<p>I read the long &#8220;man ffmpeg&#8221;, I couldn&#8217;t find where to adjust the quality other than just &#8220;-sameq&#8221;</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Snowcore</title>
		<link>http://www.fengcool.com/2008/12/ffmpeg-capture-screenshot-from-a-video-file/comment-page-1/#comment-4961</link>
		<dc:creator>Snowcore</dc:creator>
		<pubDate>Fri, 11 Dec 2009 11:27:12 +0000</pubDate>
		<guid isPermaLink="false">http://www.fengcool.com/?p=64#comment-4961</guid>
		<description>Wow, thanks!
How can I control the quality of the screenshot image?</description>
		<content:encoded><![CDATA[<p>Wow, thanks!<br />
How can I control the quality of the screenshot image?</p>
]]></content:encoded>
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