Tag Archives: ffmpeg

ffmpeg: Extract audio from .WEBM to .MP3

Posted on December 7, 2020 by janpenguin

$ ffmpeg -i file_name.webm -vn -ab 128k -ar 44100 -y file_name.mp3

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Making time-lapse video using ffmpeg

Posted on April 23, 2014 by janpenguin

Previous ffmpeg options can’t handle odd size of width or height of JPEG image files such as 1073×720. FFMPEG (libx264) “height not divisible by 2” Understanding FFmpeg – Part II: Scaling video

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Screen capture using ffmpeg in Debian Wheezy

Posted on October 16, 2013 by janpenguin

I made a simple screen capture script that uses ffmpeg to create MPEG-4 video file. I replaced two script lines from the original script. If you are using ALSA sound driver, replace ‘-f alsa -i pulse’ to ‘-f alsa -i … Continue reading →

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Video color correction using ffmpeg, GIMP, ImageMagick

Posted on October 13, 2013 by janpenguin

Excerpt from Openshot Users Forum Yes you will and up with 1000’s of temp jpg files but it’s not as bad as it sounds. Computer does all the work while you are out doing something else. Below are two bash … Continue reading →

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Journal of 11/3/2012

Posted on November 3, 2012 by janpenguin

First frost of this year. Winter is definitely coming. Day is getting shorter, night is becoming longer and colder. Six in the morning is near pitch black. I could see stars in sky. I tempted to take some star photos … Continue reading →

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Journal of 10/29/2012

Posted on October 29, 2012 by janpenguin

Everything is expensive nowadays which is engineered by the corrupted system. I decided to do get building materials locally as much as I can. Instead buying truck loads of earth, I will use earth from the small pond I would … Continue reading →

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Journal of 10/23/2012

Posted on October 23, 2012 by janpenguin

It rained for a whole day yesterday. I stayed one more night to finish the temporary roof. Temperature has dropped dramatically for last week. It was high fifteen degree Celsius to low eight. I felt summer is gone officially. I … Continue reading →

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Journal of 10/19/2012

Posted on October 20, 2012 by janpenguin

I recycle the old house material as much as possible to save expenses and reduce waste. Putting this seventy centimeter tall rack on top of the portable workbench/ladder, I have 1.5 meter platform that I can reach upto 2.6 meters … Continue reading →

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Journal of 10/18/2012

Posted on October 19, 2012 by janpenguin
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Journal of 10/15/2012

Posted on October 15, 2012 by janpenguin

It was best time lapse video so far! IMG_0001.JPG, 2012:10:15 07:49:08, f/5.6, 0.0080(1/125), ISO 100 IMG_0002.JPG, 2012:10:15 07:49:27, f/5.6, 0.0050(1/200), ISO 100 IMG_0003.JPG, 2012:10:15 07:50:07, f/5.6, 0.0050(1/200), ISO 100 IMG_0004.JPG, 2012:10:15 07:52:15, f/5.6, 0.0040(1/250), ISO 100 IMG_0005.JPG, 2012:10:15 07:54:26, f/5.6, … Continue reading →

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