雷霄骅博客
雷霄骅github
小码哥秒懂音视频系列博客
Capture inputs have one or more input ports (instances of AVCaptureInput.Port). Capture outputs can accept data from one or more sources (for example, an AVCaptureMovieFileOutput object accepts bot...
CMSampleBuffer is a Core Foundation object containing zero or more compressed (or uncompressed) samples of a particular media type (audio, video, muxed, etc), that are used to move media sample dat...
Understanding CMTime timeScale: 表示一秒被分成了多少个小单位 value: 这样的小单位的总数量 这样一个CMTime所代表的秒数就是value/timeScale
vector cross product
telegram asset library
