MediaConvert Image Inserter

Question

When creating a MediaConvert job, using the AWS PHP SDK, i am adding an image to the input video, like this:

"InsertableImages" => [
    [
        "Opacity" => 50,
        "ImageInserterInput" => 's3-image.jpg',
        "ImageX" => 0,
        "ImageY" => 0,
        "Layer" => 1,
    ]
]

As i understood, ImageX and ImageY are offsets to the image, from the top-left corner.

My questions are:

1. Is there an easy way to choose another corner with the same offsets (top-right for example.)?
2. How would i center an image?

Thank you very much in advance.

Answer

Hi :)

In image and video, the x,y coordinates are relative to (0,0) from the bottom left of the content.

* (0,0): Bottom Left
* (Pixel of image's horizontal, 0): Bottom Right
* (0, Pixel of image's vertical): Top Left
* (Pixel of image's horizontal, Pixel of image's vertical): Top Right
* (Pixel of image's horizontal / 2, Pixel of image's vertical / 2): Center

The same applies to video.
If you want the image to be centered in the video, you can specify the center position for the video in the ImageX and ImageY parameters.

Example) Video Resolution: 1500 x 500

* (0,0): Bottom Left
* (1500, 0): Bottom Right
* (0, 500): Top Left
* (1500, 500): Top Right
* (1500 / 2, 500 / 2) = (750, 250): Center

"ImageX" => 750, "ImageY" => 250

(+ ImageX and ImageY indicate where to put the image in the video.)

MediaConvert Image Inserter

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