El dimarts, 11 d’abril de 2017, a les 0:36:58 CEST, Hiroka IHARA va escriure: > Hello, > > I am a newbie who was working on 3DPDF support back in September. > In case you still remember, I am sorry that I could not spend time on > development recently. > > After I submitted the last patch #97868 (I asked for review but you can > ignore this one because it is obsoleted now), I noticed that the story was > a bit more complicated than I had thought. > > There are two issues that I need to address related to poppler (and a few > more on PDF viewer frontends). > > One is the licensing matter. > I found out that the official documentation of Universal 3D Format is > slightly outdated, and the Universal 3D Sample Software by Intel seems to > be somehow acting as the de facto reference. > > Therefore I had to adapt some part (currently a few dozens of lines) of > Sample Software, which comes in Apache License, into mine, in GPL. I took > care so that the actual code does not resemble, but the basic algorithm is > the same. > > Is it allowed to include code adapted from something APL into something GPL?
Seems not really, how copyrighteable is that code you adapted? Is it something "hard" or is it "read bit 3 and 4 from this stream"? > The other is just a question I wanted to ask. > 3DPDF data is relatively large (up to 10MiB), so I tried to learn from > existing implementation of Movie, Sound and such media streams. > > What I was curious about is why they extract all the data from Stream into > tempfiles at first, Where do we do that? Cheers, Albert > and read them again in PDF viewer(s) (though I do not > know about anything other than evince). > > Is it just because some frontend media players are happy that way, or > because there are performance or some other issues? > > My library will be happy if there is some public GObject to read from Stream > byte by byte without dumping. > > Lastly, I understand all this stuff is going to take your time, I will stop > bothering you if you think it is going to be too costly. > > Regards, > Hiroka _______________________________________________ poppler mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/poppler
