This API lets you append one video file to another. The files can be of different formats or use different codecs - the result file format depend on the extension of the result file. You can set encoding of the result file to any supported codec or you can leave it default.
Resolution is the only one restriction. Both video files should be of the same resolution otherwise you will get an error.
Please check Aspose.Video Cloud API Reference guide to test API in the browser and URL, parameters, request and response details of the append API.