[FFmpeg-user] Splitting a video in chunks with the same size

[Celso Coutinho]

Please find my answers below (to both of you)

On 8 June 2016 at 11:01, blubee blubeeme <gurenchan at gmail.com> wrote:

> I wrote a script to do this exact same thing. I will post it to this list
> when I get back to my machine.
>

Thank you :)  waiting for it :)



>
> On Wed, Jun 8, 2016, 16:56 Henk D. Schoneveld <belcampo at zonnet.nl> wrote:
>
> >
> > On 08 Jun 2016, at 10:39, Celso Coutinho <20.celso at gmail.com> wrote:
> >
> > > Dear all,
> > >
> > > I want to be able to split a file in chunks with the same (previously
> > > defined) size (except the last chunk, of course). I have been trying
> > > several commands but without much success.
> > Out of curiosity, what is the reason for wanting same-sized chunks ?
> > Same-time chunks is what mostly is used.
>

I am trying to upload a video to FB, using their graph API (link below).

https://developers.facebook.com/docs/graph-api/video-uploads#transfer

And in order to do so, I have to split the videos in chunks with the same
size.

> > When I look into the documentation, I understand the *-fs* flag allows
> me
> > > to define the maximum size of the chunk I am obtaining in each time I
> run
> > > *ffmpeg,* but I don't know how to define the starting point of the
> > chunk. I
> > > tried *-ss*, but it seems that I can only use it with time, rather than
> > > file size. Can someone enlighten me on this matter?
> > >
> > > Moreover, I have been trying to use the following command:
> > >
> > > *ffmpeg **-i raper.3gp -fs 102400 -vcodec copy -acodec copy -movflags
> > > faststart output1.avi*
> > >
> > > But the output video has no sound, plus the duration is always
> incorrect
> > > (video has 4 to 5 seconds, and the duration shown in the video is like
> > one
> > > minute). Which codecs should I choose?
> > >
> > > Thanks in advance!
> > >
> > > Celso
> > > _______________________________________________
> > > ffmpeg-user mailing list
> > > ffmpeg-user at ffmpeg.org
> > > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> > >
> > > To unsubscribe, visit link above, or email
> > > ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".
> >
> > _______________________________________________
> > ffmpeg-user mailing list
> > ffmpeg-user at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-user
> >
> > To unsubscribe, visit link above, or email
> > ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
>
> To unsubscribe, visit link above, or email
> ffmpeg-user-request at ffmpeg.org with subject "unsubscribe".
>