Search found 2 matches

by mirrorman
Sat Feb 09, 2019 8:30 am
Forum: Stream Recording
Topic: Question about FPS variations
Replies: 1
Views: 430

Re: Question about FPS variations

I'm not an expert on ffmpeg, but I think I know something about frame rate - and as no one else has replied... There are three basic possibilities if you double the frame rate of a video: 1. You duplicate each existing frame and play them in sequence twice as fast. As you might imagine, this would r...
by mirrorman
Mon Feb 04, 2019 3:31 pm
Forum: Development Examples
Topic: Motion vector coordinate system?
Replies: 0
Views: 1291

Motion vector coordinate system?

Hi. I am using the example code extract_mvs.c to obtain the motion vectors for a particular frame (frame 500) of a H.264-encoded video file. The video sequence has an overlaid frame counter to help verify what is going on. To keep things simple at this stage I have previously used the ffmpeg tool wi...