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{
"timeline": {
"soundtrack": {
"src": "https://shotstack-assets.s3.ap-southeast-2.amazonaws.com/music/metal.mp3"
},
"background": "#000000",
"tracks": [
{
"clips": [
{
"asset": {
"type": "title",
"text": "25 fps",
"style": "future",
"size": "x-small",
"position": "bottomLeft"
},
"start": 1,
"length": 5,
"transition": {
"in": "fade",
"out": "fade"
}
}
]
},
{
"clips": [
{
"asset": {
"type": "video",
"src": "https://shotstack-assets.s3.ap-southeast-2.amazonaws.com/footage/motorbike-dirt.mp4"
},
"start": 0,
"length": 10
}
]
}
]
},
"output": {
"format": "mp4",
"resolution": "hd",
"fps": 25
}
}Changes the framerate of a video to 25 frames per second (fps). Works best with source footage that is 25fps or a multiple of 25fps, i.e. 50fps. Frames are either removed or duplicated so the output length stays the same. The source footage in this example is 50fps.
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Unlimited developer sandbox
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