[mythtv-users] slightly OT: Can dd not be used on mp4?

[Ian Evans]

On Fri, Sep 20, 2013 at 8:58 PM, Gary Buhrmaster
<gary.buhrmaster at gmail.com>wrote:

> On Sat, Sep 21, 2013 at 12:48 AM, Ian Evans <dheianevans at gmail.com> wrote:
> ...
> > So is there any way to create a smaller file? Trying top figure out why
> .27
> > mythcommflag can't create a seektable on this mp4 file I have but the
> > original's too big.
>
> Have no tried it personally, but something like the following should work:
>
> ffmpeg -ss 00:00:00 -t 00:30:00 -i original_file.mp4 -acodec copy \
> -vcodec copy smaller_file.mp4
>
> (that presumes I have not mis-remembered the ffmpeg options)
>

Worked like a charm.
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