[FFmpeg-user] how to detect changes between frames - for a very simple AVI video where most of the frames are exactly identical (just a sporadically updating computer screen capture)

[Peter B.]

belcampo wrote:
> On 10/27/2011 02:19 AM, Stefan Scott Alexander wrote:
>> ffmpeg does lots of stuff, so I basically am hoping someone can point
>> me to
>> the commands which allow frame-by-frame comparisons,
>> plus outputting timestamps.
> Maybe following this thread and following the suggestions and a
> mentioned script you'll find something that will give you the right
> direction.
> http://ffmpeg-users.933282.n4.nabble.com/Creating-a-list-of-I-frames-td2299316.html
>

But wouldn't detecting I-frames only be helpful for his cause, if the
I-frames are threshold-positioned, which would have to be configured
during encoding?

...or am I overlooking something?


Pb