[FFmpeg-devel] How to Read Frame from Multiframe Images?
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
Oh, and there is no "C/C++" language...
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