Alternatively, you can use ffmpeg to transcode video or write the frames of I presume you wish to use these codecs with the Matlab functions. codec types for video recording and especially combined video + audio recording to work. Psychtoolbox has a list of codecs that it tries to use. This section details the computer/Matlab requirements that are required to run DART. . Although Matlab does come with array of built-in codecs for video.