[Bf-committers] ffmpeg library update

[Sergey I. Sharybin]

  Also, forgot to mention.

Pre-rc1 binaries were 52mb. Not sure why with the same configuration Ken 
had got such bigger binary -- maybe it's because of collada (not sure 
i've used exactly the same configuration for it).

Really strange thing that even with binary 10mb bigger tham mine Ken's 
archive was 2-3mb smaller. Matbe it's bytes sequence issue.

So, maybe enabling all that codecs aren't so big issue from binary side 
point of view?

Sergey I. Sharybin wrote:
> Hi,
>
> I've done some testing with configurations. Here are some results.
>
> So, first of all i've disabled version3 and nonfree otions. First of 
> them leads to gpl3 or higher library version, second maked libraries 
> un-redistributable. Now libraries are gpl2 or higher.
>
> Also, i've disabled debugging symbols (--disable-debug flag). This 
> shouldn't affect on size doe to all symbols (strip --strip-all) are 
> stripping from blender binary.
>
> Then i've made simple config which gave exactly the same result in 
> dependencies as ffmpeg which was used for 2.57a release. Conficuration 
> is published in [1]. Blender binary after stripping was 43Mb. Don't 
> think it's matetr due to linking happened against libraries which are 
> ~1year newer, i think, and codebase of ffmpeg became larger 
> (additional checkings, maybe architecture changed so some symbols 
> which were unused and stripped now used and so on).
>
> Next test was with initial config from this thread with license 
> cleaning and cleaning up flags which Peter and Joerg marked as unused 
> and also disabled most of marked as "UNSURE" options. This options are 
> related on speech (don't think this kind of audio is useful for 
> Blender, but this libraries aren't big -- ~300Kb so could be added if 
> they're necessery) and streaming (but dirac and schro keeped enabled 
> -- it's algos of encoding/decoding raw videos). Configuration is 
> published in [2]. Blender binary growed u[ to 49mb. This is also 
> understandable, because all new dependencies (vpx, ogg, vorbis, 
> theora, dirac, schro) are ~8mb in total. More codecs -- higher size of 
> binary.
>
> Next step was disabled schro and dirac. Configuration posted to [3]. 
> This saved 2mb and Blender binary became 47mb.
>
> I haven't tested with rtmp enabled because don't find stream sources b 
> useful in Blender and this gives too much dependencies which weren't 
> easy to solve -- some libraries came from Debian Sid environment, some 
> from Debian Lenny, some from Lenny Backports.. Also, this adds ~2mb of 
> Blender binary size.
>
> So, question is: do we want to support more codecs (ogg, vorbis, 
> teora, vpx, dirac, schro) and have 8mb bigger Blender binary as we've 
> got now?
>
> [1] http://www.pasteall.org/21098
> [2] http://www.pasteall.org/21099
> [3] http://www.pasteall.org/21100
>
> -- 
> With best regards, Sergey I. Sharybin


-- 
With best regards, Sergey I. Sharybin