[FFmpeg-devel] How to Read Frame from Multiframe Images?
Michel Bardiaux
mbardiaux
Wed Jul 4 10:27:05 CEST 2007
Fribs Mike wrote:
> Hi all,
> I am trying to read one frame or certain frame from any video type:
> wmv, avi, mpeg and then I wanna do some processes for that frame.
>
> Is it possible to get any header file (with C/C++ language) to make
> it easy?
>
> I hope that my question is clear.
Not at all.
Your best strategy is to first rehearse what you want to do using the
ffmpeg command line. See especially the options -ss -t -vframes -f
image2, in the doc and in the list archives.
BTW rehearse on *many* cases, all the containers and codecs you want to
support, with sample files from all the sources you want to accept,
because there is a lot of diversity in multimedia files, and some things
are possible with some but not with others.
*Then* you look at the relevant code in ffmpeg.c, and code something
similar.
Oh, and there is no "C/C++" language...
Cheers,
--
Michel Bardiaux
R&D Director
T +32 [0] 2 790 29 41
F +32 [0] 2 790 29 02
E mailto:mbardiaux at mediaxim.be
Mediaxim NV/SA
Vorstlaan 191 Boulevard du Souverain
Brussel 1160 Bruxelles
http://www.mediaxim.com/
More information about the ffmpeg-devel
mailing list