[FFmpeg-devel] How to Read Frame from Multiframe Images?

[Michel Bardiaux]

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
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