[FFmpeg-user] crop filter, how to move crop rectangle along the y-axis ?

Hi, I wish to have the crop retancle to move from position 200 to 400, when 4 seconds are laps. Why does it only work along the x-axis? *Along x-axis, this works, crop rectangle jumps from x=200 to x=400 when t>4* ffmpeg -y -i "30secGraduated1280x720.mp4" -vf "crop=in_w-780:in_h-200:if(lt(t\,4)\,

Re: [FFmpeg-user] Create an AAC stream matching the Core Media Audio packet format / priming etc?

On 19 Jun 2017, at 22:38, Marton Balint wrote: > Can you measure how many samples are the delay before and after my patch? I'd > rather do some additional testing now, instead committing something that is > only half-correct. I’ve reached out to the developer who was helping me. I believe he al