Free ffmpeg software for windows

FFMPEG Scout is a helper library for free FFMpeg.exe open-source video files converter. FFMpeg Scout helps to convert AVI, MPEG into FLV through FFMpeg converter.
FFMPEG Scout library is a freeware ActiveX/NET library for converting AVI video into FLV, MPEG files using free FFMPEG.exe converter.
You can add AVI to FLV, MPEG conversion ability to your ASP, ASP.NET, Visual Basic, C#, C++ program using this freeware ActiveX/NET wrapper for free FFMPEG.exe converter
Main features:
- Converts AVI to FLV (example), check also example "Converting AVI to SWF (using additional SWF Scout library)";
- Set width and height of produced video;
- Set audio, video bitrate;
- Set video type;
- Set video and audio codec type;

An open source tool for using ffmpegs features FFpocket is mainly developed to support Jublers multimedia preview features.
You can build FFpocket as a shared proxy library and use it in larger projects that want to incorporate multimedia features using the ffmpeg library (avformat/avcodec).
Main features:
- Frame decoding for a video file
- Audio decoding for a multimedia file (video/audio)
- Precise frame/time seeking in the multimedia files (including b-frames)
- Audio downsampling and special minmax averaging, refered to as caching
- Caching is used by Jubler to produce the visual representation of a multimedia files waveform.

Winff is a frontend for FFMPEG that runs on Windows XP.
It will convert almost any video file that FFmpeg will convert. WinFF does multiple files in multiple formats at one time.
You can for example convert flvs, mpegs and movs, all into avis all at once.

A korean media and DVD Front-End Player KMPLAYER is a korean movie and audio player that supports a wide range of codecs and file formats, It has full VCD/DVD playback functionality.
KMPlayer is a program that allows you to play audio and video files.
Main features:
Supported Files or Devices
- HTTP Streaming(AVI etc including none-streaming media)
- Directshow playback (avi, mkv etc)
- Real Engine + Directshow (needs Real Player or Alternative)
- QuickTime Engine + Directshow (needs QuickTime player or Alternative)
- Mplayer Engine Support
- Winamp Input Plugin(decoder) Support
- Compressed Audio Album Support(zip, rar)
- Audio CD(2000, XP only / Win9x-Support by winamp plugin)
- Video CD/SVCD/XCD : CDXA Format (2000, XP only)
- DVD playback
- DTS Wave and AC3 files
- WDM device support like TV or Camera
- CD Image File (BIN/ISO/IMG/NRG) ; NRG needs mplayer.dll
- Shoutcast (Including NSV)
- AAC, OGG parser/decoder
- Shockwave Flash/FLC/FLI
- Ape/MPC/Flac/Module etc
- Various Image files like png, gif etc
- Incomplete/Damaged AVI file (Skip Damaged Frames)
- Locked Media Files while downloading or sharing
Built-in Codec/Filters
- Video Codec
- MPEG4 (Divx/Xvid : ffmpeg/xvid)
- MPEG1/2 (ffmpeg/libmpeg)
- etc (ffmpeg)
- Audio Codec
- AC3/DTS/LPCM/MPG/MP3/OGG/AAC/WMA
- 2Ch to Multi Channel expansion
- External Codec
- Media Priority to Connect among Directshow, Real, QT, Winamp and Mplayer
- Custom Filter Manager
- System Filter Manger
Plugins
- Winamp Input Plugins
- Winamp DSP Plugins (Can Stack)
- Winamp Visual Plugins (Can Stack)
- Winamp General Plugins (Media Library etc Support)
- KMP Video Plugins by SDK (Can Stack)
- DScaler Filter Support (Can Stack)

PSPEnc is a gui for FFMPEG. It uses Avisynth to handle the video. The output is an mp4 file compatible with PSP (only MPEG4 SP atm).
Main features:
- Avs, Avi, Mkv, Ogm, Mpg, Wmv ... input (basically everything working with DirectShowSource).
- Automatic crop/addborders, to obtain correct aspect ratio.
- Automatic video bitrate calculation (you have to choose only audio bitrate and total output size).
- 1 pass, 2 pass, 1 pass with fixed quantizer, compressibility test, size prediction for fixed quantizer encodes.
- Job list.
- You can see quantizer distribution after every encode.
- You can run multiple istances of PSPEnc.

FFDShow MPEG-4 Video Decoder 20081009 Rev2201 is a set of DirectShow filters and VFW codec for video compression, decompression and processing and audio compression and processing. You can play almost any movie using ffdshow.
FFDShow uses libavcodec from ffmpeg project or for video decompression (it can use xvid.dll installed with xvid codec too), postprocessing code from mplayer to enhance visual quality of low bitrate movies, and is based on original DirectShow filter from XviD, which is GPLed educational implementation of MPEG4 encoder.

ffdshow is a set of DirectShow filters and VFW codec for video compression, decompression and processing and audio compression and processing.
You can play almost any movie using ffdshow.
FFDShow uses libavcodec from ffmpeg project or for video decompression (it can use xvid.dll installed with xvid codec too), postprocessing code from mplayer to enhance visual quality of low bitrate movies, and is based on original DirectShow filter from XviD, which is GPLed educational implementation of MPEG4 encoder.
Main features:
- fast video decompression using optimized MMX, SSE and 3DNow! code
- support for different codecs: XviD, all DivX versions, MS WMV, MPEG-1 and - MPEG-2
- image postprocessing for higher playback quality
- automatic quality control: automatically reduces postprocessing level when CPU load is high
- hue, saturation and luminance correction
- experimental sharpening filter
- noising (of course if you want it)
- presets
- completely free software: ffdshow is distributed under GPL
- support for various subtitle formats