On Sun, 25 May 2014 14:26:38 +0200, Alessandro Ghedini <[email protected]> wrote: > On Sun, May 25, 2014 at 02:10:15PM +0200, Anton Khirnov wrote: > > > > On Sun, 25 May 2014 13:48:59 +0200, Alessandro Ghedini > > <[email protected]> wrote: > > > On dom, mag 25, 2014 at 08:37:14 +0200, Anton Khirnov wrote: > > > > > > > > On Sat, 24 May 2014 20:40:57 +0200, Alessandro Ghedini > > > > <[email protected]> wrote: > > > > > On sab, mag 24, 2014 at 12:24:08 +0200, Anton Khirnov wrote: > > > > > > > > > > > > On Mon, 19 May 2014 11:32:58 +0200, Alessandro Ghedini > > > > > > <[email protected]> wrote: > > > > > > > Yup, that works!!! That only leaves the pix fmt problem now. > > > > > > > > > > > > > > > > > > > Comparing the codes, seems like removing the > > > > > > avpriv_set_systematic_pal2() is the > > > > > > cause > > > > > > > > > > The ffmpeg code actually adds the avpriv_set_systematic_pal2() call. > > > > > FWIW, > > > > > removing that call doesn't seem to make much difference: instead of > > > > > red-ish the > > > > > image becomes black-ish, but the colors are still wrong. > > > > > > > > > > > > > Ok, the patch i just sent to the ML should really fix that. > > > > > > Nope, no luck this time. The output image still looks wrong (in fact, I > > > can't > > > see any difference). I wonder if it's in fact a problem in lavc/gif.c > > > (that is > > > in the encoding of the actual frames), but TBQH I don't know much about > > > libav > > > internals so I'm not very useful I'm afraid. > > > > > > FWIW I just noticed that the gray image (-pix_fmt gray) has more or less > > > the > > > same problems [0]. The possibly interesting thing is that the first few > > > frames > > > look fine, then something happens and it becomes black (or red in the > > > colored > > > one), and then the "moving" pixels get back to the correct color. Dunno > > > if this > > > is of any use though. > > > > > > > Did you add the avpriv_set_systematic_pal2() call back to the encoder too? > > With those two changes, the output looks correct to me. > > Do you mean in libavformat/gif.c? If so, yes, I have: > > if (avpriv_set_systematic_pal2(palette, video_enc->pix_fmt) < 0) { > av_assert0(video_enc->pix_fmt == AV_PIX_FMT_PAL8); > gif_image_write_header(s, width, height, gif->loop, NULL); > } else { > gif_image_write_header(s, width, height, gif->loop, palette); > } > > in gif_write_header(). Otherwise I don't see any other > avpriv_set_systematic_pal2() calls in the diff between ffmpeg and libav.
No, I mean in libavcodec/gif.c. ffmpeg has a call to avpriv_set_systematic_pal2() there, in gif_encode_init(), which initialises the palette -- Anton Khirnov _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
