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LanSongSDK—Video Editing SDK design specification

  words: composition: is a container used to store various input files. The abbreviation is: compXXX, such as compDurationUs, which means the duration of the composition, in microseconds (Us) Layer: Layer, we wrap the video into a layer, adding a video or picture is a layer. ConcatComposition class Means: concat video and picture. The total duration of the splicing of pictures and videos is used as the duration of the final exported video. The container has 3 layer classifications, namely: background layer, concat layer, and overlay layer. ˙ Background layer : Add a background layer to the container as a whole, support: color background, picture background, if you want to set different backgrounds for different layers, you can use the canvas/background function of the layer to set them separately;   Concat layer: Concat the picture and video selected by the user together. It can be added before the start, or inserted during the preview process, can be inserted at a specified ...
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