Closed GoogleCodeExporter closed 8 years ago
Whitch version are you using ?
Original comment by fan...@gmail.com
on 20 Jan 2007 at 12:01
Original comment by drSlum...@gmail.com
on 21 Jan 2007 at 1:24
it's a known problem. AFAIK the On2 VP6 video codec is closed sourced and to
access
its specification you need sign a non-disclosure license.
I've just found out this: http://wiki.multimedia.cx/index.php?title=On2_VP6
The codec frame header seems to be pretty well documented, I'll give it a shot
and
see if I can add support for it.
Original comment by drSlum...@gmail.com
on 21 Jan 2007 at 1:32
I've just committed the needed changes to trunk (I'm sure Fanno will update PHP4
version asap).
Taking ffmpeg's libavcodec source as reference the FLV's On2 VP6 codec frame
header
is basically like this:
4bits width adjustment
4bits height adjustment
1bits frame-type (0 is like a key-frame)
15bits miscellanea data (quantification and other stuff
8bits number of 16x16 rows
8bits number of 16x16 cols
So width is Cols * 16 - Width adjustment and the same for height
Original comment by drSlum...@gmail.com
on 21 Jan 2007 at 2:52
Original issue reported on code.google.com by
bil...@gmail.com
on 19 Jan 2007 at 8:04