Re: [Vnc2swf-users] Shrinking a vnc2flv file

[Brian C. <B.C...@po...>]

On Fri, Nov 06, 2009 at 08:45:22AM -0500, Yusuke Shinyama wrote:
> I've never heard of "FSV" codec

I meant the flash screen video codec. I understand there are two versions,
and I had seen them referred to elsewhere as FSV1 and FSV2. e.g.
http://wiki.multimedia.cx/index.php?title=Flash_screen_video

> So the way to go is to implement "V2" codec somehow...

Here's someone who might know...
http://wiki.multimedia.cx/index.php?title=Small_FFmpeg_Tasks#Implement_the_Flash_Screen_Video_codec_version_2

But I'd say it's reasonable for vnc2flv to encode using the simplest
possible codec, and post-process it to v2, since this is a lossless format
anyway. At the moment, encoding directly into the v2 form would limit the
range of tools you could use to handle it.

Your code is a pretty clear spec for the V1 codec, so if I get a chance
I'll see if I can have a look at improving ffmpeg's encoding.

However I also found this document via google:
http://www.schnarff.com/file-formats/flash/flash_fileformat_specification.pdf

Unfortunately, it requires you to accept a licence agreement before opening.
The licence permits you to write software which outputs FLV. However you are
not permitted to write a program which reads or renders FLV, and you have to
agree to adding Macromedia branding to your finished product. As a result,
you may decide not to read this file :-)

Regards,

Brian.