Hi Prakash,
Please could you answer some questions for me I am evaluating Media Foundation vs. DirectShow for a new application to be written in C#.
The required functionality is:
* Decode a large range of video formats and extract individual frames.
* Insert individual frames and encode a large range of video formats.
I currently achieve this using DirectShow from C++, but I have some difficulty using DirectShow from C#.
1) Is Media Foundation available for me to download and use now I can only find some very brief documents on the web site, no API reference and no download I can see.
1) Would you recommend Media Foundation for this application No capture functionality is required. I am hesitant to continue using DirectShow, because there is a large time investment to achieve what I need and it seems to be unsupported and phasing out.
2) Will Media Foundation be supported on Windows XP, or will the application be restricted to Windows Vista
Kind regards,
wtrn
DirectShow vs. Media Foundation for new application
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DirectShow vs. Media Foundation for new application
Venusm
Thank you for this information, it is very helpful!
I notice that Windows Vista is not included in the list of supported operating systems for DirectShow. Is it planned to include support for DirectShow in Windows Vista
Kind regards,
wtrn
NetRider
Media Foundation is available, and you can get it through the Windows SDK at http://www.microsoft.com/downloads/details.aspx familyid=13F8E273-F5EA-4B7B-B022-97755838DB94&displaylang=en. You'll get documentation and some code samples with this SDK.
As for whether Media Foundation is appropriate for your application... I think the biggest decision point for you will be format support. Since Media Foundation is v1, it has built-in support for some file formats, such as ASF and MP3, but certainly not everything. Of course, nothing is preventing you from writing your own Media Source, and we even provide a code sample for that; for a simple format, it's not hard, but of course providing a Media Source for complex formats can be a bigger task.
Same story when it comes to decoding and encoding: Vista will have some Media Foundation Transforms (the Media Foundation incarnation of DMOs) -- such as WMA and WMV encoders and decoders -- but, again, not everything. And again, nothing prevents you from writing your own, and if the format is simple, this won't be terribly hard.
Media Foundation is Vista-only; we're not shipping it on XP and below at this time.
Thanks, and good luck...
Becky
E Coloney
Cyberwizard
I also wanted to mention that we will soon be publishing a whitepaper that talks about migration scenarios from DShow to Media Foundation. I will post a message on this forum once that whitepaper is ready.
Thanks,
Prakash Channagiri
Mojca
Here's the deal: While DirectShow is certainly a part of Windows Vista, and you should use it if you need it, we definitely encourage developers to move to Media Foundation if they can.
Becky