[mythtv-users] Way OT but...

[Gert van der Knokke]

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