[FFmpeg-user] How can I recode the movie in a way that I can step forward frame by frame?

[Andy Furniss]

Andy Furniss wrote:
> LaHu wrote:
>> I assume the movie is encoded using IPB frames. Thus I can't step from 
>> any frame to the previous/next frame but from I-frames to I-frames only.
> 
> This is not true, mpv can step OK with IPB, it can also field step if 
> you are de-interlacing.

Hmm, testing mpv more that I did initially - it doesn't always work 
going backwards on h264, it will do it - but not reliably.

It always works going forwards.

>> So I'd like to convert the movie to an I-frame only format.
> 
> For the same quality, I frame only will be a lot bigger.