http://ffdshow-tryout.sourceforge.net/wiki/ 2009-11-30T01:50:58+00:00 http://ffdshow-tryout.sourceforge.net/wiki/ http://ffdshow-tryout.sourceforge.net/wiki/lib/images/favicon.ico text/html 2009-03-28T12:47:48+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:avisynth?rev=1238244468&do=diff About AviSynth Basically, AviSynth is a scripting language for building a chain of video filters, similar to what ffdshow's filter configuration allows. It is even more powerful than ffdshow (since it's made for non-linear video editing), but it doesn't come with a GUI, and by itself it is not really suited to be used for filtering videos while watching them in a media player. ffdshow's AviSynth filter enables you to use most of AviSynth and it's filters in real-time when playing a video, but o… text/html 2009-11-29T09:48:12+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:codecs?rev=1259488092&do=diff H.264/AVC libavcodec/ffmpeg-mt * libavcodec is part of FFmpeg, which is the main decoding library of ffdshow. * ffmpeg-mt is the multithreaded version of libavcodec which is considerably faster on multi-core CPUs. It is still in development and not as stable as libavcodec itself. text/html 2009-11-16T19:30:47+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:decoder_options?rev=1258399847&do=diff Libavcodec options IDCT MPEG videos are encoded using certain DCT algorithms. IDCT is the inverse process of DCT. The IDCT algorithm must match the one that was used to encode the video. If libavcodec's auto detection fails for some reason, the proper IDCT can be selected here manually. text/html 2009-08-19T13:34:51+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:deinterlacing?rev=1250688891&do=diff Process frames flagged as progressive * Unchecked (default): Deinterlace only frames flagged interlaced. Please note that these flags are not reliable in VFW and application plugins. * Checked: All frames will be deinterlaced. Methods Yet Another DeInterlacing Filter This is a port of Yet Another De-Interlacing Filter (yadif) written by Michael Niedermayer from MPlayer. ffdshow contains additionally custom SSE2/SSSE3 and multithreading optimizations. If you use this filter to watch DVDs… text/html 2009-11-18T10:41:47+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:directshow_control?rev=1258540907&do=diff Merit If there are multiple DirectShow filters available that can do the same task (such as decoding an MPEG-2 video), the system needs a way of knowing which filter to use. Thus each DirectShow filter is registered with a merit value. This way the system chooses the filter with the highest merit. Giving ffdshow a higher merit can override other competing filters. text/html 2009-04-05T15:00:27+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:output?rev=1238943627&do=diff The output page gives you control over the output formats used by ffdshow. The top half gives you control over the allowed output colorspaces, while the lower half is used for miscellaneous output settings. Colorspaces This page allows you to set the default output colorspace and format used by ffdshow. There are two general colorspaces that can be used, and a number of formats within each colorspace. text/html 2009-11-18T10:40:57+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:profiles_preset_settings?rev=1258540857&do=diff ffdshow has a feature to use a different set of settings depending on conditions. We call the sets of settings preset settings. For example, you can configure ffdshow to use preset settings named 'High_res' or 'Low_res' depending on the resolution of input video. You can also prepare several preset settings and select one manually. Image and audio filters, output settings and decoder options (except the ones in 'Codecs' page) are under preset settings. They are listed below 'Profiles / Preset s… text/html 2009-05-28T21:00:32+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:queue_misc?rev=1243544432&do=diff Overview The objective of ffdshow's Queue feature is to reduce frame drops and delay of video. It is effective if CPU load is high and ffdshow is dropping a few frames/sec or delaying a little. Because the video renderer is executed in another thread, the effect is greater if you have a Pentium 4 HT or a dual core CPU. It is confirmed to work with Media Player Classic's VMR7 and VMR9 mode (both including renderless mode). As this is an advanced option, it may require some testing and configurin… text/html 2009-07-11T07:17:21+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:resize_aspect?rev=1247296641&do=diff Resize Specify horizontal and vertical size * “No aspect ratio correction” selected: Stretched or shrinked to the specified size. * “Keep original aspect ratio” selected: Stretched or shrinked until either width or height touch the specified size using the original aspect ratio. Black borders are added, if necessary. * Manually configured: Stretched or shrinked until either width or height touch the specified size using the specified aspect ratio. Black borders are added, if necessary.… text/html 2009-10-05T21:01:31+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:rgb_conversion?rev=1254776491&do=diff Overview The advanced color space options page gives you control over the YCbCr <-> RGB conversion. The top half allows the selection between the ITU-R BT.601 and ITU-R BT.709 standards, while the lower half is used for black and white level, which controls the contrast. These settings are used only when ffdshow is doing YCbCr <-> RGB conversion. In other words, if you are playing MPEG video and the output color space is YV12 or YUY2, these settings will be ignored. text/html 2009-03-28T12:40:48+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:sharpen?rev=1238244048&do=diff xsharpen This filter performs a subtle but useful sharpening effect. It operates by running a small window over the frame and each center pixel is either passed through untouched (depending upon a threshold setting), or mapped to either the brightest or dimmest pixel in the window, depending upon which is nearest to the center pixel. If the center pixel is mapped, it is also alpha-blended with the original pixel value using a configurable strength setting. The result is a sharpening effect that… text/html 2009-06-08T05:19:15+00:00 http://ffdshow-tryout.sourceforge.net/wiki/video:subtitles?rev=1244438355&do=diff For better quality of subtitles (except vobsub), using RGB32 as output colorspace will help. Search in ffdshow will try to find an external subtitles file automatically. Subtitles files usually have the same names (and different extensions) as the video files. Specify a directory to search subtitles in. One period (the default) is used to specify the same directory of the video.