FFDShow可以称得上是全能的解码、编码器.最初FFDShow只是mpeg视频解码器,不过现在他能做到的远不止于此.它能够解码的视频格式已经远远超出了mepg4的范围,包括indeo video,WMV,mpeg2等等.同时,它也提供了丰富的加工处理选项,可以锐化画面,调节画面的亮度等等.不止是视频,FFDShow现在同样可以解码音频,AC3、MP3等音频格式都可支持.并且可以外挂winamp 的DSP插件,来改善听觉效果.可以说现在的FFDShow已经是windows平台多媒体播放的非常出色的工具了。 FFDShow MPEG-4 Video Decoder 功能 : - 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 最新更新: Changes from FFDShow rev. 970 to FFDShow rev. 1019 : - Smoother fast forward/rewind and better OSD display. Bug corrected (preset list retrieval could crash) - Bug fix of rev 894: embedded DVD and vobsub subtitles were not shown. - Update Gradient glowing shadow - subtitles font dialog: disable fast rendering when shadow is enabled. - Bug corrected : stack memory allocation should not be freed - ffmpeg 8296-8298 - subtitle fixes - changed default settings - OSD color : responding to rev 999 - subtitle font weight : "bold" for default - subtitle : more smooth edge (related to rev 999 fix - fix occasional crashes on Glowing shadow - Subtitles font page : French translation updated - Wrong comment in code - Increased the threshold for subtititles blurring effect (from 128 to 180). It may be interesting to add it as a new parameter in the dialog - Oups, disabled shadow option was not functional. Fixed - Fixed the "gray" subtitles issue. Now the chosen color is not washed out anymore :) - Added an option to disable the subtitles shadow - Fixed compilation warnings - Oups, also committed my ffdshow_2005.vcproj file. Still, the current version does not compile on XP or Vista with the preprocessor definition _WIN32_WINNT=0x0400. It should be removed. I put back the original project file though - Dialog options for subtitles shadows - fix error 0xC0000005 during registration ffdshow.ax - Bug fix: Deleting the active and default preset caused a crash. - Added configuration entries for subtitles shadow - Added shadows to subtitle with 3 modes (glowing, classic with gradient, classic with no gradient). Configuration of these modes, plus transparency and shadow size need to be added into the interface. - FFV1 encoder: fix keyframe distance - fix 'SinkuHadouken.exe'#1310 -> 'SinkuHadouken.exe'#13#10 (rev 976 bug) - add one compatible application and fix realplay.exe/SinkuHadouken.exe compatibility list. - compilation fix (GCC's bug??) - Show DAR at the right to "Keep original aspect ratio". - Minor resource fix - exclude libavcodec-WMV from "Set all stable formats to libavcodec". - srt subtitle:fix sticky italic - added one compatible application - added three compatible applications. - Updated WEB content. - the audio dialog is updated every 50ms (20fps). This may use CPU a lot, but it's user's choice to display the dialog during playback. - The changes in TffdshowPageBase.cpp avoid freezing when CPU can't catch up with the refresh rate (mainly Mixer, on slow CPU). - flipped NV12 - updated icl9 and msvc71 binaries - Fixed one warning.    Download: 下载链接  [url=http://www.vistacodec.com/files/ffdshow-rev1019_20070311.zip]http://www.vistacodec.com/files/ffdshow-rev1019_20070311.zip[/url]  Download: 下载页面  [url=http://www.free-codecs.com/FFDShow_download.htm]http://www.free-codecs.com/FFDShow_download.htm[/url]