FFDShow MPEG-4 Video Decoder Revision 4191 | 14.51 Mb
FFDShow
is a DirectShow decoding filter for decompressing DivX, XviD, H.264,
FLV1, WMV, MPEG-1 and MPEG-2, MPEG-4 movies. It uses libavcodec from
ffmpeg project for video decompression, postprocessing code from mplayer
to enhance visual quality of low bitrate movies, and is based on
original DirectShow filter from XviD, which is GPL'ed educational
implementation of MPEG4 encoder.
First of all, the FFDSHOW
consumes way less CPU power than original DivX codecs, even with maximum
post-processing. At the same time the post-processing seems to give
excellent quality results and allows more configuring than the original
DivX 5 codec. It can even automaticly reduce post-processing if your CPU
is getting overloaded. The noise filter adds a kind of a rasterising
effect to the picture - might be useful in some cases. The alpha version
also includes experimental playback for MPEG-1 and MPEG-2 files (such
as VCD and SVCD movies), which works pretty damn well. Only problem is
that MPEG-2 playback can't play the SVCD clips directly from the CD, but
requires the video to be extracted to the HDD by using VCDGear first.
Features of FFDShow MPEG-4 Video Decoder :
- various compression methods:
· MPEG 4 compatible (Xvid, DivX 4, DivX 5) using libavcodec or XviD
· Divx 3 compatible, MSMPEG4v2, MSMPEG4v1
· WMV1/7, WMV2/8
· H263, H263+, H264
· HuffYUV in YV12 colorspace
· MJPEG
· MPEG 1
· Theora (not for regular use, format isn't stabilized yet)
· MPEG 2 by using mpeg2enc code from MJPEGtools project
· all Windows Media Video 9 supported encoders with output to asf/wmv file or AVI
-
all common encoding modes: constant bitrate, fixed quantizer, fixed
quality, two pass encoding (depends on compressor features)
- for libavcodec and XviD detailed selection of motion estimation method
- minimum and maximum I frames interval
- minimum and maximum quantizer selection, quantizer type and trellis quantization selection for libavcodec
- adaptive quantization (aka. masking) for libavcodec and XviD, single coefficient elimination
- selectable compression of starting and ending credits
- two curve compression algorithms for second pass of two pass encoding - thanks to XviD developers
- second pass simulation: although not very precise, still helpful for tweaking advanced curve compression parameters
- ability to use libavcodec internal two pass code
- image preprocessing with ffdshow image filters (latest ffdshow version must be installed)
- graph during encoding: if your encoding program doesn't provide one
- B frames support: from one to eight consecutive B frames
- support for MPEG 4 quarterpel and GMC
- selectable interlaced encoding
- decompression
Supported languages: BG, BR, CZ, DE, EN, ES, FI, FR, HU, IT, JA, JP, PL, RU, SC, SE, SK, TC
homepage:www.ffdshow.info