Tag Archives: ffmpeg

How to cut video and audio without re-encoding using ffmpeg

Posted on March 12, 2018 by SoCRaT

ffmpeg -i source_video.mp4 -t 50 -c copy output_video.mp4 This cuts the first 50 seconds of the video named source_video.mp4 and outputs them without any re-encoding to output_video.mp4 Another example for audio files: ffmpeg -i input_file.mp3 -ss 00:00:05 -t 00:00:21 -c copy output_file.mp3 … Continue reading →

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Batch-resize videos on Ubuntu Linux with ffmpeg

Posted on March 19, 2017 by SoCRaT

So, the case is as follows: I have about 15 videos files that were recorded at 4K and are very large in size. I wanted to keep everything as is, but just reduce the resolution to HD (720p). ffmpeg would … Continue reading →

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How to cut videos from the command line in Ubuntu 12.10 and later (Mint 14 and later)

Posted on May 21, 2013 by SoCRaT

avconv -i DP4U12.ogv -vcodec copy -acodec copy -ss 00:00:00 -t 00:04:20 DP4U12_complete.ogv The above command preserves the same format of the input file, where: DP4U12.ogv is the input file DP4U12_complete.ogv is the output file The command cuts the video from … Continue reading →

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Convert CD-quality WAV to 8bit mono WAV using ffmpeg

Posted on August 19, 2010 by SoCRaT

Today I needed to record something in a WAV file that shouldn’t exceed 100 KB, when I used the standard “Sound Recorder” in Ubuntu, it recorded using the default CD-quality recording (resulting in a 280 KB file, so I used … Continue reading →

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