The width of the last image in a recording is still 900px wide. This is the case even if it isn't 32 seconds long - e.g. a track that is 45 seconds long will have image 1 = 0-32, 900px, and image 2 = 32-45, 900px, even though it's only 13 seconds long.
This image should be 13/32*900 = 365px wide.
Same with the 16/8/4 second images.
The width of the last image in a recording is still 900px wide. This is the case even if it isn't 32 seconds long - e.g. a track that is 45 seconds long will have image 1 = 0-32, 900px, and image 2 = 32-45, 900px, even though it's only 13 seconds long.
This image should be 13/32*900 = 365px wide.
Same with the 16/8/4 second images.