FFMS#

Notice

This project has moved to GitGud. See you there!

C# wrapper for FFMS2

How to use

1. Download the latest FFMSSharp.dll
2. Reference it in your C# application
3. Download ffms2.dll
4. Put it next to your .exe file (or in a folder near your .exe file, see FFMS2.Initialize(string))
5. Use FFMS2!

Things to keep in mind

• Right now the code is in a very immature state, do not use it in production or bad things might happen.

Example

// Initialize the library. You have to call this before anything else.FFMSSharp.FFMS2.Initialize();// Index the source file.stringsourcefile="somefilename";varindexer=newFFMSSharp.Indexer(sourcefile);varindex=indexer.Index();// Retrieve the track number of the first video trackinttrackno=index.GetFirstTrackOfType(FFMSSharp.TrackType.Video);// We now have enough information to create the video source objectvarvideosource=index.VideoSource(sourcefile,trackno);// Check how many frames the video hasintnum_frames=videosource.NumberOfFrames;// Get the first frame for examination so we know what we're getting.// This is required because resolution and colorspace is a per frame property and NOT global for the video.varpropframe=videosource.GetFrame(0);/* Now you may want to do something with the info; particularly interesting values are: * propframe.EncodedResolution.Width; (frame width in pixels) * propframe.EncodedResolution.Height; (frame height in pixels) * propframe.EncodedPixelFormat; (actual frame colorspace) *//* If you want to change the output colorspace or resize the output frame size, now is the time to do it. * IMPORTANT: This step is also required to prevent resolution and colorspace changes midstream. * You can you can always tell a frame's original properties by examining the Encoded* properties in FFMSSharp.Frame. * See libavutil/pixfmt.h for the list of pixel formats/colorspaces. * To get the name of a given pixel format, strip the leading PIX_FMT_ and convert to lowercase. * For example, PIX_FMT_YUV420P becomes "yuv420p". */// A list of the acceptable output formatsList<int>pixfmts=newList<int>();pixfmts.Add(FFMSSharp.FFMS2.GetPixelFormat("bgra"));videosource.SetOutputFormat(pixfmts,propframe.EncodedResolution.Width,propframe.EncodedResolution.Height,FFMSSharp.Resizer.Bicubic);// Now we're ready to actually retrieve the video frames.intframenumber=0;varcurframe=videosource.GetFrame(framenumber);// Valid until next call to GetFrame on the same video object// Do something with curframe// Continue doing this until you're bored, or something// Everything _should_ get cleaned up automatically.