FFMPEG Introduction & Examples

1 slide introduction to the FFMPEG project. ~10 command line examples. Presented to the Dayton Data Visualization meetup group. Thanks very much to AIS for hosting.

[LetTheWritersWrite]

awesome! examples are the quickest way to learn about a software.

[ZDrive]

Thanks for video. It's helping me get started with ffmpeg.

[streetmoney]

Converting anything to Audio using ffmpeg is a charm. I use this command:

1. Put the Files you want to convert into a folder and change to that directory using CMD.
e.g. cd
2. Create a folder inside it e.g. mine is OUTP.
3. Then Paste this command and click enter;

for f in *; do ffmpeg -i "$f" -acodec alac "OUTP/${f%.*}.m4a"; done

Note: The command above converts anything inside current folder into m4a audio format and stores the converted list into OUTP folder.

[chinaguy]

extremely helpful and of great quality

[MatresMusic]

I love how you cut the video to make it efficient

[astropgn]

ffmpg is a wonderful software, that can do amazing things. However, the developers didn't think about its use. The code is very counter intuitive.

[robertcortez]

thank you for this ffmpeg tutorial I'm learning how to use this audio and video encoder

[bladertheking]

Thank you for this video. Really helped me.

[vanipediavideosinhindi-pra]

sir, we want to add UTF-8 language as subtitles. the letters are getting distorted when we use the following command, kindly help us how to get the correct way to hard code the videos.
ffmpeg -i 851.mp4 -vf -sub_charenc [UTF-8] " 100851.mp4

[ling]

Those examples should be included in the doc. Thanks.

[adl]

Thanks you for your video, it helped a lot. Newer versions of ffmpeg have a different file structure and ir does not work, so i had to de uninstall and install older one, 3.4.1....

[matrixate]

This should accompany the online documentation.

[JTutorials]

Does anyone know the difference between _-vframes_ vs _-frames_ and when to use one instead of the other? They both seem to do the same thing successfully, and the documentation doesn't seem clear...

*ffmpeg -h full*

-frames number - set the number of frames to output
-vframes number - set the number of video frames to output

[wongright]

What's this speaker's name? His material is superior to most on FFMPEG, "well done", 🙏👨‍💻👏.

[isranaz]

awesome... but how to extract subtitle from the video input? any suggestions

[jeremymolayem]

I saw a command for extracting still images from video as the following:
ffmpeg -i inputfile.avi -r 1 -f image2 image-%3d.jpeg
Do you know if the input must be for a .avi file? It seems I'm getting error. 

This may be because I am working with a video that is on a DVD, running on a separate device. Should I set my working directory to this DVD device? But wouldn't the output send to that DVD device. How would I get the output to a local folder?

[krisskross]

can different codecs only exist if there is a GOP greater than zero?

[revoluciontolteca]

The presenter need add hands on using command prompt not just a power point presentation. Good lecture and essay to follow to persons who are familiar with the use of command prompt.

[Chinhcongdaklak]

how to render multiple videos simultaneously with ffmpeg? thanks

[ahmadjamalmughal]

I get this error when I try to run concat command with .txt file as input. :(
**Line 1: unknown keyword ' ■f'**

**.\out.txt: Invalid data found when processing input**