[MPlayer-users] Re: How to play the raw mpeg4 bitstream (ES)

[Jonathan Rogers]

swchen wrote:

> and if i use ffmpeg to convert the mpeg4-ES into avi, ffmpeg will decode it
> first then
> encode it again with avi header .
> (command:--> ffmpeg -i movie.m4v movie.avi) of course, this command works
> fine.
> But it is waste time and video quallity will be degraded!

Yes, I would not want to do that either.

> someone tell me to use
> ---> ffmpeg -i movie.m4v -vcodec copy movie.avi
> but using this command, it can't played correctly using mplayer, even ffmpeg
> itself can't
> decode the copyed movie.avi correclty.  It's strange!! I think the avi
> header and because
> chunk length is fixed to 2048.

That's what I had in mind. I haven't tried it though, so you know more 
than I do now. Maybe Tuukka's suggestion is the key.

Jonathan Rogers