I would look into RLE (very simple and should be fast enough for actionscript, only really helps for images that contain areas of the same color. If every pixel's a different color, it's not gonna compress)
And possible LZSS (decompression is very fast, but compression can be slower) -David R On 8/21/05, Daniel Wabyick <[EMAIL PROTECTED]> wrote: > > It may very well be slow, but it would be interesting to still try. One > factor to consider is that the bitmap sizes for most applications would > be relatively small, and this would reduce the amount of info to deflate. > > That said - I would be open to other compression ideas, ideally ones > that will be trivially simple for server applications to implement. > > One might think Adobe might know a thing or two about this subject. ;-) > > Max Herkender wrote: > > >Nah, png compression uses DEFLATE, basically (a form of) zip > >compression. It'd be astonishingly slow in Actionscript. Simpler forms > >of compression might work well if you enabled low quality before > >getting the snapshot though... > > > >On 8/21/05, . m a r c o s a u g u s t o <[EMAIL PROTECTED]> wrote: > > > > > >>Yup.. I made it using imagemagick and amfphp... > >>You can expect around 500kb for a 150x150px image.... > >>I was thinking about using some kind of LRE compression, and try to > >>find patterns.. > >>But PNG sound more interesting... > >>Can it be done ? > >> > >> > >>On 8/21/05, David Rorex <[EMAIL PROTECTED]> wrote: > >> > >> > >>>On 8/21/05, Carl-Alexandre Malartre <[EMAIL PROTECTED]> wrote: > >>> > >>> > >>>>Hi, > >>>> > >>>>I was wondering, can FP8 take screenshot of the user's activity and send > >>>>them to the server? > >>>> > >>>>With the new pixel access, can FP8 send bitmap data to the server? > >>>> > >>>>This would be incredible for crash reporting. In one of our apps, we have > >>>>a > >>>>button where people can complain. Maybe it could attach a screenshot of > >>>>the > >>>>app at the same time. > >>>> > >>>>Thanks > >>>> > >>>> > >>>You could take a 'screenshot', but ONLY of whats running inside your > >>>particular instance of flash. > >>> > >>>The only problem is, there is no image compression routines built into > >>>flash. Also there are issues with sending raw data to the server. So > >>>the screen capture first of all would be pretty slow (you have to read > >>>each pixel one at a time), and then the data to upload would be pretty > >>>big (several megabytes...unless you implemented PNG compression in > >>>actionscript or something) > >>> > >>>-David R > >>> > >>>_______________________________________________ > >>>osflash mailing list > >>>[EMAIL PROTECTED] > >>>http://osflash.org/mailman/listinfo/osflash_osflash.org > >>> > >>> > >>> > >>-- > >>. m a r c o s a u g u s t o ; > >> > >>_______________________________________________ > >>osflash mailing list > >>[EMAIL PROTECTED] > >>http://osflash.org/mailman/listinfo/osflash_osflash.org > >> > >> > >> > > > >_______________________________________________ > >osflash mailing list > >[EMAIL PROTECTED] > >http://osflash.org/mailman/listinfo/osflash_osflash.org > > > > > > > _______________________________________________ > osflash mailing list > [EMAIL PROTECTED] > http://osflash.org/mailman/listinfo/osflash_osflash.org > _______________________________________________ osflash mailing list [EMAIL PROTECTED] http://osflash.org/mailman/listinfo/osflash_osflash.org
