Pushing images into a gstreamer pipeline

After playing around with some toy applications, exploring the documentation and googling around (including the mailing list archives) I am still puzzled for what I would think is a rather common use case.

I have an existing code that generates images (in memory) and I would like to push these images into a gstreamer pipeline (to create a flv video at the end).

I could not find an "obvious way to do it". My best guess will be to dig in the source code of GstMultiFileSrc and its parent GstPushSrc, to figure it out.

Could any of you point me out to the "obvious way" of doing this ? Is it there any related piece of documentation/tutorial/example on this ?

Once I have the input right, the rest is a piece of cake, thanks to Gstreamer awesomeness ! (something like "my magic input -> ffmpegcolorspace ! ffenc_flv ! flvmux ! filesink location=desktop.flv" )

Thanks for your answers.