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Clearly resizing to to actual screen size lowers CPU work on playback, but based on my experience with desktop PC's, even those of ten years ago did not seem to find on the fly rescaling too hard.
May you can add only support of AVI container (and may be others, for example mkv) from libavformat (part of ffmpeg)?And other codecs can added more simply.
ok so mostly because I'm bored right now and was curious how this might work. I ported an mpeg-4/avi decoder I worked with a few years ago to rockbox this weekend. Right now it's just decoding and displaying AFAP to the display, but I do have the decoding and display working(at least on my sansa and the simulator).
If you are interested please PM me with your device info and contact info and I will get you a .rock to try it out.
Quote from: gottahavit on March 31, 2010, 08:12:10 PMok so mostly because I'm bored right now and was curious how this might work. I ported an mpeg-4/avi decoder I worked with a few years ago to rockbox this weekend. Right now it's just decoding and displaying AFAP to the display, but I do have the decoding and display working(at least on my sansa and the simulator). Awesome!Quote from: gottahavit on March 31, 2010, 08:12:10 PMIf you are interested please PM me with your device info and contact info and I will get you a .rock to try it out.This probably won't work. .rock files usually don't work too well outside of the version they're compiled for. A better idea would be to open a flyspray task with your patch and then ask people to test it on various devices and post the results there. Plus technically you have to give out the source code with the .rock file anyway, so its usually just easier to use the patch tracker.
As it stands the code is a total mess and I have no intentions of releasing it in it's current state for view by anyone nor making the test available to more than a few people at this point.IF and WHEN this gets closer to a useable target I will be happy to submit it to the rockbox gods to see if they want to include in the official build, but right now I am just looking for couple people to confirm this as a proof of concept.If this is against any rockbox rules then I will withdraw the request for testers and wait until I have this in a more useable state. BTW I Don't want to start a big phillisophical debate, but I have never heard anyone claim that GPL negates the ability to distribute limited binary only release to testers.
The GPL requires that if you give someone the binary, and they ask for the source, you have to then give them the source.So you can distribute the binary to testers, but then any one of them can request the source and then pass it on to share.Why not just post it, so you can get feedback about the code too, as well as help developing it further?
So, we got stuck? It seems so. Or that, or the mpeg-4 decoder of the above posts was "written" in 1st April... which, just in case you don't remember, is April fools day on many countries.
Sorry for reviving a very old thread. But, even having only an iPod Nano with a microscopic screen, I sometimes like to watch videos in there (specially videoclips) and I'm tired of having to convert everything to mpeg-1 or mpeg-2 format getting an enormous file size.
there any other format that could replace mpeg-4, providing the same quality but not enlarging the file size as mpeg-1 and mpeg-2?
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