Ffmpeg - Revision history

Sysadmin: not computer code

2022-11-22T23:31:31Z

not computer code

← Older revision		Revision as of 23:31, 22 November 2022
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	* change to the directory: <code>cd C:\output_folder\</code>		* change to the directory: <code>cd C:\output_folder\</code>
	* to make an MP4 with 30 frames a second from images in the format starting ~~<code>~~output.0001.bmp~~</code>~~: <code>ffmpeg -r 30 -crf 25 -i output.%04d.bmp yourmovietitle.mp4</code>		* to make an MP4 with 30 frames a second from images in the format starting 'output.0001.bmp': <code>ffmpeg -r 30 -crf 25 -i output.%04d.bmp yourmovietitle.mp4</code>
	* to make a WMV with the same settings: <code>ffmpeg -r 30 -crf 25 -i output.%04d.bmp yourmovietitle.mpv</code>		* to make a WMV with the same settings: <code>ffmpeg -r 30 -crf 25 -i output.%04d.bmp yourmovietitle.mpv</code>

Sysadmin: quote mark typo edit

2022-11-22T23:29:49Z

quote mark typo edit

← Older revision		Revision as of 23:29, 22 November 2022
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	* Download 'release' package build archive from https://www.gyan.dev/ffmpeg/builds/		* Download 'release' package build archive from https://www.gyan.dev/ffmpeg/builds/
	* Unzip into an easy-to-find folder, such as <code>C:\ffmpeg</code>		* Unzip into an easy-to-find folder, such as <code>C:\ffmpeg</code>
	* To add ffmpeg to your system <code>PATH</code>, so that you can run it from any window, open a CMD/Powershell window as Administrator, then run: <code>setx /M PATH "%PATH%;C:\ffmpeg\bin</code>		* To add ffmpeg to your system <code>PATH</code>, so that you can run it from any window, open a CMD/Powershell window as Administrator, then run: <code>setx /M PATH "%PATH%;C:\ffmpeg\bin"</code>

	In any case, ffmpeg can now be invoked from a command-line. To make sure we have a working system, you can run: <code>ffmpeg -version</code> to display information about the build.		In any case, ffmpeg can now be invoked from a command-line. To make sure we have a working system, you can run: <code>ffmpeg -version</code> to display information about the build.

Sysadmin: Created FFMPEG tutorial page

2022-11-08T19:41:01Z

Created FFMPEG tutorial page

New page

ffmpeg is a free and open-source suite of programs which allow for the conversion and creation of video, audio, and image files. While ffmpeg can be thought of as a swiss-army knife for multimedia formats, we can use ffmpeg on the output of VMD (or any other MD sim) to create smooth animations.
==Installation==
Linux and Mac OSX users can use the built-in package manager to install ffmpeg via command line:

* Ubuntu/Debian Linux: <code># sudo apt install ffmpeg</code>
* Mac OSX via homebrew: <code>$ brew install ffmpeg --with-fdk-aac --with-ffplay --with-freetype --with-libass --with-libquvi --with-libvorbis --with-libvpx --with-opus --with-x265</code>

Windows users can install manually using packages built by community package maintainers:

* Download 'release' package build archive from https://www.gyan.dev/ffmpeg/builds/
* Unzip into an easy-to-find folder, such as <code>C:\ffmpeg</code>
* To add ffmpeg to your system <code>PATH</code>, so that you can run it from any window, open a CMD/Powershell window as Administrator, then run: <code>setx /M PATH "%PATH%;C:\ffmpeg\bin</code>

In any case, ffmpeg can now be invoked from a command-line. To make sure we have a working system, you can run: <code>ffmpeg -version</code> to display information about the build.

== Use with VMD ==
ffmpeg is already linked against VMD in the Unix versions of the program. For Windows users, Navigating to 'Extensions > Movie Maker' will allow the creation of a number of images, one per step size specified, which are saved to a specified folder. After creating these images, you can perform the following to create a movie file:

* change to the directory: <code>cd C:\output_folder\</code>
* to make an MP4 with 30 frames a second from images in the format starting <code>output.0001.bmp</code>: <code>ffmpeg -r 30 -crf 25 -i output.%04d.bmp yourmovietitle.mp4</code>
* to make a WMV with the same settings: <code>ffmpeg -r 30 -crf 25 -i output.%04d.bmp yourmovietitle.mpv</code>

ffmpeg will read sequentially across the pattern %04d as input -i, and create a movie with rate -r and quality -crf. Many other options are possible, and would require a look at the ffmpeg documentation.

== Outside Resource ==
ffmpeg homepage wiki: https://trac.ffmpeg.org/wiki