Is there any way to do byte[] to byte[] or InputStream to OutputStream conversion?

[elijah-pl]

Need to find a way to format videos on the fly - chunk by chunk.
Seems like ffmpeg supports stdin-stdout conversion without temporary files, but lib Encoder only allows to specify target file.

[a-schild]

A InputStream can be passed for the input. Output to StdOut is not implemented, but I would accept a patch for this.
But be aware that some media formats need to read the source multiple times to do an optimazed conversion