On2 vs libvp62 (was: Re: [Ffmpeg-devel] When is planned to add ogg Theora output in ffmpeg?)

Oded Shimon ods15
Sat Apr 15 22:09:37 CEST 2006

On Sat, Apr 15, 2006 at 04:02:20PM -0400, Rich Felker wrote:
> On Sat, Apr 15, 2006 at 10:25:39AM +0100, Dieter wrote:
> > In message <20060415134828.GC1890 at biurrun.de>, Diego Biurrun writes:
> > > And anyway, what is fairly complex to you? As seen above libvp62 is
> > > around 3000 lines of code.  Writing (and debugging) that much code can
> > > take some time depending on your skill and experience, but we're not
> > > talking about man-years here.
> > 
> > The usual figure is 10 lines of code per day, so 3000 lines would be
> > 300 person-days.
> This is utter nonsense. My libc implementation is 26038 lines of code,
> and I have not spent 2603.8 days on it. The project was started in
> December and I've hardly worked every day/round the clock on it.
> For something like VP62, leaving out the step of discovering how it
> works and just assuming you already have specs, I would think 3000
> lines of code would take at most a week or two for a competent coder.

To give an example of something slightly more relavent, my vorbis decoder 
from scratch is about 1500 lines, not counting breaks, I think it took me 
2 weeks, MAYBE a month. Definitaly not half a year...

- ods15

More information about the ffmpeg-devel mailing list