Hi.

> Shall I put you question in this  way
>
>   I dont think that its necessary to write trailer bit everytime..
>

For example, the MPEG4 format would not work if the trailer was not written
- as the MOV atom containing file details, only being written in trailer,
after the file was rescanned.


>
>   for example i have done MPEG4 compression in avi container.... during
> that time i dont write the trailer bit  ...i dont find any difference...may
> be some expert can share what the trailer bit contain...
>

Really? And does the format works normally - i.e. you can seek it, the time
goes normally (at same frame rate as it should), and similar?


>
> how useful it will 
> be...?<https://lists.mplayerhq.hu/mailman/listinfo/libav-user>


This useful indeed - question how reliable it works.

Perhaps the experts can shed some light on this?

Thanks in advance.
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