brainwane: My smiling face in front of a brick wall, May 2015. (Default)
[personal profile] brainwane
Ashley Blewer, an archivist specializing in moving images and a software developer, created a website, "ffmprovisr", to make it easier for you to use the program ffmpeg.
FFmpeg is a powerful tool for manipulating audiovisual files. Unfortunately, it also has a steep learning curve, especially for users unfamiliar with a command line interface. This app helps users through the command generation process so that more people can reap the benefits of FFmpeg.

Each button displays helpful information about how to perform a wide variety of tasks using FFmpeg. To use this site, click on the task you would like to perform. A new window will open up with a sample command and a description of how that command works. You can copy this command and understand how the command works with a breakdown of each of the flags.

FFmpeg is a free, open source tool that works on the command line and lets you do stuff like:
  • Change codecs (transcode)
  • Change formats
  • Filter stuff
  • Create GIFs and thumbnails
  • Normalize/equalize audio
  • Read/extract captions
  • Make test patterns
  • Fix audio that's fallen out of sync
  • Join or split files
  • Play an image sequence


I have used FFmpeg recipes in the past and it's great how much it can do, especially in combination with youtube-dl which makes it easy to download video from a ton of sites -- YouTube, SoundCloud, Vimeo, and many others. I hope other vidders find ffmprovisr helpful in their work!
frayadjacent: Buffy looking to the side in black and white (Vidder malfunction)
[personal profile] frayadjacent
Hi all,

I'm following damned_colonial's tutorial for exporting vids for vividcon on a mac.  Everything seems to work fine *except* that the final video file from ffmpegx is a little interlaced looking -- or actually it more reminds me of descriptions I've read of what happens when you de-interlace progressive flim (the pixelly-liney appearance is most obvious on diagonal lines rather than during fast motion).  I de-interlaced when I exported from FCP, but I didn't check de-interlace on ffmpegx (and get an error if I do, in fact).  I also chose "not interlaced" under options.  I get the same result if I switch "not interlaced" to "frame", and if I try switching "not interlaced" to "field" I get another error.

Anyone dealt with this?

Thanks!

some_stars: (ph34r)
[personal profile] some_stars
I know that there are tutorials on deinterlacing scattered around. I've tried some of them, a long while back, and given up in total confusion. But now I'm making a vid from animated source (A:tLA) for the first time, and the interlacing is so noticeable that I can't just ignore it. So: How do I deinterlace? I'm really, REALLY hoping it doesn't involve Avisynth but if there is literally no other way to do it with decent results, I will deal. But seriously, ANY other method. I would go look for the tutorials again but honestly? I'm scared of them, and I'm pretty sure I won't be able to extract any information from them.

So basically, how, and at what point do I do it? As I'm pulling the clips in virtualdub? Or before that, to the entire ripped .vob file? After I finish the vid? As for the "how" itself--the more details you can provide, the better. I don't expect (or really want) to understand how any of this works, I just need to know exactly step-by-step how to make it happen. I'm working with VirtualDub Mod and Premiere Pro 2. My usual procedure is to rip a .vob file, then make huffyuv clips in vdub and resize them if necessary, then export the finished vid from premiere in huffyuv and vdub it into divx.