Support and General Use > Plugins/Viewers
AVI playback
Datman:
About 1 month ago someone has stolen my Onda VX777 player (or it was a good imitation...). It wasn't a very good audio player, but it played big AVI (mpeg4/DivX) files without any problem. Does it have a video decoder chip, not present in my Sansa Fuzev2?
soap:
I'm not 100% sure I'm reading the right implication into your question, but it appears to me you're saying the Onda played AVI with Rockbox. Which it does not.
The Onda does play many types of AVI containered videos in its original firmware, though.
As to if it has a dedicated video decoder I can't say. I do know that it was marketed as a media player (implying video) not just a MP3 player.
Datman:
--- Quote from: soap on November 16, 2010, 06:21:32 PM ---The Onda does play many types of AVI containered videos in its original firmware, though.
As to if it has a dedicated video decoder I can't say. I do know that it was marketed as a media player (implying video) not just a MP3 player.
--- End quote ---
I was thinking about what someone said in this thread: power requested for mpeg-4 decoding is too high for "our" audio players. I think Onda media player have hardware video decoders, so that they don't rely on the CPU for decoding. An mp3 player has to do all by software & CPU.
saratoga:
--- Quote from: Datman on November 16, 2010, 06:45:55 PM ---I was thinking about what someone said in this thread: power requested for mpeg-4 decoding is too high for "our" audio players. I think Onda media player have hardware video decoders, so that they don't rely on the CPU for decoding. An mp3 player has to do all by software & CPU.
--- End quote ---
I don't know anything about the Onda players, but searching google it says they use software decoding. This seems reasonable, since google also only claims it can decode a few relatively simple video formats.
sirdan:
--- Quote from: Datman on November 16, 2010, 06:45:55 PM ---I was thinking about what someone said in this thread: power requested for mpeg-4 decoding is too high for "our" audio players.
--- End quote ---
Can anybody tell me, how mpeg-4 (SP particularly) can be more power demanding than mpeg-2? The former was designed specifically for mobile devices, while the latter for HIGH BITRATE dvd movies. Of course actual mpegplayer plugin is optimized, but imagine what could you do with mpeg-4 codec when giving it some atention. I guess this codec is optimized in its specification to run on mobile cpus. I think some pple still cant differ mpeg-4 SP from mpeg-4 ASP which is actually xvid/divx (sp + B-frames and more) and indeed at the begining mpeg4 ASP was more demanding than mpeg2 on PC. Its designed for SMALL BITRATE, thats why we can squeeze the file sizes with xvid even more than any mpeg2 encoder. Am i wrong?
EDIT: and i bet there should be some existing code to run xvid decoder at least on arm targets?
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