On Wed, 19 Oct 2005 21:45:42 +0200 Gert van der Knokke wrote: > Nick Rout wrote: > > >OK so there are threads on here about the video ipod so I thought this > >one is ok too. > > > >My son was recently given a little mp3 player sourced in Hong Kong. It > >has a little screen and can play videos as well as music. There is a > >sample video on the machine when you buy it, and it plays tolerably well. > > > >Trouble is i cannot figure out the file format or codecs used so that i > >can encode video for it. There are some programs on the accompanying CD, > >but they are all chinese language and for windows. > > > >The file has the suffix .mtv and running file on it simply gives the > >result "data". mplayer, xine, ffmpeg, tcprobe all fail to recognise it. > > > >The device is branged "mp4" and was made somewhere in asia. > > > >Any ideas on how to figure out how this stuff is encoded and packaged? > > > > > Quote of some stuff I found with Google: > > > The most so called china mp4 devices I'm aware of, support only > > variations of mtv like dmv or mpx. There is no chance at all to play > > native wmv or mpg without prior conversion because those devices have > > neither hardware nor software decoding support. The concept of the mtv > > format (and all derivates) is, to have an mp3 stream that carries image > > information that is allready in the format of the display hardware > > (uncompressed). A hardware mp3 decoder is already in place, the display > > hardware only need to point to the memory adress of the next image > > (simple implementation in soft- and hardware). > > Hope this will help... > > Gert >
Thanks Gert, that makes sense as i have seen people complain that their video files get bigger when theey convert them for use on these devices! -- Nick Rout <[EMAIL PROTECTED]>
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