WinFF for Neuros
From The Neuros Technology Wiki
What is WinFF?
WinFF is a graphical front-end for the free, open-source command line video converter, FFMPEG, built for Windows and Linux. It will convert almost any file from one format to another. The graphical front-end enables easy batch conversion and the choice of "presets" that simplify the complexity of FFMPEG dramatically.
What is WinFF for Neuros?
Matt, of BiggMatt.com fame, has built a version of the free, open-source WinFF with presets that are optimized for the Neuros OSD.
Where can I get WinFF for Neuros?
The latest versions for Windows are available below.
There is still some work that we wish to accomplish with WinFF for Neuros.
- Identify presets that are optimized for PAL devices, instead of just NTSC devices.
- Automate the video size identification and "squished video" arithmetic.
How do I use WinFF for Neuros?
Using WinFF is very simple.
- Download and install WinFF for Neuros.
- Run WinFF for Neuros
- The default screen appears, as shown below. From here, you can add one or more files to transcode, choose your transcoding options, and choose where to output your transcoded files.
- Press the 'Add' button and choose one or more files to transcode.
- Choose a quality to which you wish to convert. We will choose "High Quality Standard TV".
- Choose an output destination. We will choose the "c:\Transcoded files" directory. Your screen should look like the one below.
- Press the 'Convert' button. You will see a black window, like the one shown below, pop up. This is FFMPEG, the underlying console-based transcoder, running. If you look at the last line, you can follow along on the process of the transcoding.
This part is highly dependent on the speed of your computer, as you might expect. For instance, in the example above, we are converting ~8 frames per second. The standard output is between 25 and 30 frames per second, so the conversion will take 3 to 4 times as long as the length of the video.
Your file is now converted! In our example, the output file is located in "c:\Transcoded files". Play your file back on your Neuros OSD, and enjoy the show!
My files are squished. How do I fix this?
This happens when a source file has a width/height ratio (known as aspect ratio) that is not equal to standard (4/3, or 1.333) or widescreen (16/9, or 1.778). To fix this, we need to tell WinFF what the correct width and height should be.
- First, open your source file. We recommend you use the excellent free, open source VLC, but QuickTime should work as well.
- Next, get the width and height information for your file. In each case, you are looking for a resolution that looks something like: 640x480. This means your video is 640 pixels wide by 480 pixels tall.
- VLC: with the file open, go to View, Stream and Media Info. Click on Advanced Information. Look for Resolution.
- QuickTime: with the file open, go to Window, Show Movie Inspector. Look for Normal Size.
- Now that you have your source video size, we need to do some quick math.
- Your new width will be the square root of (307200 * source width / source height).
- Your new height will be the square root of (307200 * source height / source width).
- Round both the width and height to a multiple of 2.
- For example, if the source video resolution is 1280x544, the new resolution will be 848x361. Rounded to a multiple of 2, the new resolution will be 848x360.
- In WinFF, bring up the additional options by clicking on View, then Additional Options.
- Enter the computed new width and height in the Video Size width and height fields.
- Choose your other settings (filename, preset, and output folder) and press Convert.
NOTE: we hope to automate the math in a future release of WinFF.