Wouldn't need to decode every LZW compressed Index color pixel just to extract an individual image frame, just copy and/or modify the header stuff and then combine it with the parsed out color tables / image data from the frame you want to extract and put it into a new GIF container.Īlthough, as already mentioned, there's a format where only the changed areas of pixels from one frame to the next are actually stored, so that could be more difficult to parse. I suppose you could pass the GIF data in to a BrowserWidget running one of those JS libs on it, but that seems rather convoluted. I know there's a few JavaScript libraries (or web ports of common offline libraries) that can do those sort of thing, but we may have our GIF's image data embedded into our stacks inside 'the text of image." (that always bothered me, it is NOT text ,it's bin data from one of several supported file formats) which we can easily get and set. getting into movie territory and with todays computers and devices you'd probably be better off using a compressed video format like. I've only ever used GIF for short animations like an animated loading graphic, not sure what the goal of the OP GIF was, but a 3mb GIF is rather large for a GIF file. And the image data could be passed around in memory for other uses ( like applying filter effects with CoreImage Filters for example ) I've experimented with that technique with 'compiled' SVG' image data in LC and it's pretty darn fast to render, might work just as well with bitmapped image frames. it could be useful to load the frames image data into memory, like in an array for fast access. These file formats have been around for a long time and are well documented. I'll have to dig that out and see if I can't add some stuff like individual frame extracting. I re-wrote it, adding jPEG and PNG header parsing using LC script a few years back. I know this thread is a little dusty, but has no one really ever written an xTalk library for doing stuff with GIF frames / files? I mean I've written scripts that parse GIFf headers for basic info (H/W Size in px, frameCount, Color Index, etc.) like 27-28 years ago (needed an XCMD to read binary / null bytes to do stuff like that in HyperCard back then). Swapping frames may mean it has to use disk space as temporary memory and that will cause slower animation. A 3MB gif is very large and it's probably using most available RAM. It's been too long since I created any gifs so I don't recall what they call those formats, but the second method can reduce the size dramatically. One way saves the entire content of every frame, the other way is to save only the differences between frames. Hope will be liked by you all.There are two ways to create a gif file. Below some loading bars are listed for our readers’ inspiration. Designers created many fascinating progress bars to evade this situation. The loading process may wear out a user and he would prefer to go away. But designers do their best to design and create wonderful loading bars to relieve users from the sting of waiting.īasically, loading bars show the user the present movement of downloading. While browsing, sometimes we have to wait for something to open or download & it’s really boring to see such a time-wasting page. Same with the internet, although internet connections are going fast yet there are some minutes when we have to wait for some time. Everything is going as fast as time is passing. The invention of new things has changed the whole criteria of life. Many changes have been made in the technology era. These loading bars are really awe-inspiring & I hope you guys will like to have them when you’re waiting on the page. In this post, we mostly added Gif animated loading bar designs. Beautiful loading bar design examples will be shared with our readers for their inspiration.
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