Re: Trouble displaying a jpeg image
Siarhei Siamashka <[email protected]>
| Newsgroups | gmane.comp.lib.cairo |
|---|---|
| Message-ID | <CACY+gR2QuxiTCyQq0Zo3nnrVZh1RoV2XKSHq7v9p+0shnNco5w@mail.gmail.com> |
On Sun, Jan 8, 2012 at 5:14 AM, Jeffrey Britton <[email protected]> wrote: > Thanks. > > In case it helps anybody, the following ended up being the fastest and most > direct method that I could work out. > Nonetheless, the conversion from rgb to bgra is quite slow(150ms on my > single core 2.9Ghz machine) and should be done in 'C'. > I tried Cython with no signifcant improvement. Or if the performance actually does matter, then BGRA should be directly converted from the decoded YUV data without the mostly useless intermediate 24-bit RGB representation. Like libjpeg-turbo can do with JCS extensions. -- Best regards, Siarhei Siamashka -- cairo mailing list [email protected] http://lists.cairographics.org/mailman/listinfo/cairo