Ham Radio Software from F6CTE. Inmarsat C satellite decoding of EGC and AERO ACARS with a homemade helical antenna: Visual and acoustic recordings (MP4) of different modes from Nils (DK8OK). A little background, I was given the task of fixing a few 'small' bugs and maintaining this solution for streaming video across the network between two instances of our application. The solution was written by someone who is no longer here so there is some mystery in the code as well as some really fun pitfalls. The solution was written using ffmpeg with C++ code written to wrap the encoding/decoding related code as well as some of the streaming code. This C++ was then wrapped with SWIG so that it could interop with C# and pass the video frames up where they are rendered using which lives in a WPF control. The main reason the frames are passed up is because we have some custom protocols we need to send video data over and those are written using C# so as the video frames are passed up we wrap them in our own packets and send them out on the wire. This solution works and we can stream video using our custom protocols though it is something of a nightmare to maintain and work with. My question is there a better way to go about this? File extension gam. ByteFence is also very light on your resources and has about zero percent impact on the day to day performance of the license key system so you can effectively and efficiently use your system without any halt and pause in the overall performance of the system. During the performance of the active scan of the system by BYTEFENCE ANTI-MALWARE PRO 2.10 LICENSE KEY 2017 FULL FREE DOWNLOAD you can surf the web normally, open and close all the applications and there is no significant drag on the performance of the system. The performance of BYTEFENCE LICENSE KEY also very active during the active scan of the system and the performance of the system is not at all affected by the normal scan of the software. ![]() I'm looking for ways to work at a lower level with the video data (in C#) so that I can take the video frames and package them in our own packets and send them out and be able to receive and rebuild the video on the other side. Ffmpeg seems to be the common solution but I've run into a lot of issues with it and the GPL/LGPL thing I think is a problem. The basic flow I'm looking to achieve, video file -> encode -> wrap in packet -> send over wire on protocol X -> get video data from packet -> decode -> render / save to disk. DirectShow is your friend. DirectShow is the low level layer used by most of the windows 'multimedia' applications like Media Player, Audio Encoders, and so on. Even if this library has been made for native developers you can access it from the managed world thanks to DirectShow.net. This is a well known and stable managed wrapper for DirectShow. The only thing you have to do is to learn a little bit DirectShow to understand the concept of graphes and filters and then to create your own filters and graphes to use the power of DirectShow! I downloaded the free version of the Expression Encoder and played around a bit with the API, samples and looked through the libraries in reflector to try and get a handle on if this could work. It does look like a nice solution but I'm still not sure I'll be able to get what I need to control the streaming over a custom protocol. I did find that the LiveJob object has a property, OutputFormat, that looks like it could be implemented in a way to do a custom streaming implementation so this might work in the end. – Dec 3 '09 at 18:49. I wrote the VideoRendererElement back when there were no efficient ways to render video in WPF (v3.0). It uses some hackery to make it work. If you want to simplify things a bit, drop the VRE and use the InteropBitmap for rendering (WriteableBitmap is ok, but not as efficient). Also drop SWIG and make your C++ dll a CLI/C++ dll, this way you can directly talk to your C++ from C# (and vice versa). Another route you can go is to just create a DirectShow source filter that contains your transport/decoding stuff and you can use something like my to have it render into WPF (it uses the D3DImage. Also, don't be afraid of LGPL. As long as you keep it in it's own DLL and do not change the source, you are within the license restrictions. We are converting video files into various output formats (divx encoded avi, flv, mp4 etc.) for our mediadatabase application. Frequenzweiche Berechnen Programm - Frequenzweiche - Frequenzweiche berechnet passive Frequenzweichen erster, zweiter, dritter und vierter Ordnung. Die gute alte analoge Frequenzweiche hat. Welcome to the home page of ARTA software - a collection of programs for audio measurements and analysis in acoustical and communication systems. Frequenzweiche kostenlos zum Download auf GIGA.DE. Frequenzweiche berechnet passive Frequenzweichen erster, zweiter, dritter. Jetzt Frequenzweiche downloaden! PC Hard- & Software. 346 Downloads Sat-Sub. Tools - Frequenzweiche berechnen - Hochpass, Tiefpass & Bandpass Rechner Veranstaltungstechnik. Downloads Preislisten, Datenbl. Enclosure Design Software For Mac. Volumen Berechnen Auto. Frequenzweiche Berechnen Programm - Frequenzweiche - Frequenzweiche berechnet passive Frequenzweichen erster, zweiter, dritter und vierter Ordnung. Frequenzweiche berechnen software stores. Since we always worked with CLI-applications to do media conversion (talk about rasterizing EPS files to JPG using ImageMagick/GS), we relied heavily on FFMPEG-CLI. In our special environment, we used 'dumb' UNIX-servers as conversion machines (there is only sshd, ffmpeg, misc. Ffmpeg libraries and samba installed). They are controlled through PuTTy's CLI from C# (WCF webservice) via SSH commands to do the real conversion. The call for ffmpeg happens via ssh and is specialized for each TransformationType. The putty CLI is started through C#'s System.Diagnostics.Process namespace, events for output- and error-messages are handled for logging purposes. The internet provides alot of resources concerning questions like 'How can i convert mpg to flv using ffmpeg?' , a little bit of research will help you out. Since we are talking about a copyright'd application, i cannot post complete code excerpts. But it should give you an architectural idea about a reliable, fast video encoding backend using C#.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |