Hi again, Sorry for that, the email was accidentally sent...
I am creating a video from a list of images and as the video frame rate is not important in my use case, I have experimented with different frame rates and noticed that the ouput video size changes a lot depending on the chosen frame rate to reach a minimum size limit. Here is the command I ran for different frame rates: ffmpeg -framerate 60 -start_number 1 -i %d.jpg -c:v libx264 -r 60 -pix_fmt > yuvj420p out-60fps.mp4 Here is some info on different output videos with different frame rate: fps video size bit rate bit/frame > 30 47368102 16841991 561399.7 > 60 37289465 26516952 441949.2 > 100 30917271 36642691 366426.91 > 1000 30917271 366426915 366426.915 The bit rate increase as expected with the frame rate but the number of bits per frame decrease slowly to reach a certain limit (note that the video size is the same for 100 and 1000 fps). I did notice a small decrease in image quality between lower and higher frame rates but I don't have a rational explanation to this. Do you have any idea ? Thank you for your help. -- *Stéphane SAFFRÉ* 2016-05-09 22:47 GMT+02:00 Stéphane Saffré <[email protected]>: > Hello, > > I am creating a video from a list of images and > > -- > *Stéphane SAFFRÉ* > _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
