These standards are created so that hardware, that is less flexible than software, can read and write the information. The container specifies how many tracks can be held and IO’ed at one time.įormats like DNxHD, prores, hdcam, xdcam, and cineform are marketing names for manufacturer created “standards”. WMA professional can do at least 7.1+ and handle things like vbr, zip like compression (lossless), and uncompressed. Only certain containers are able to hold large amounts of tracks and things like embedded CC.ĭolby AC3 is basically MP3 with a multitrack ability, hence 5.1 or 7.1. Containers can hold multiple video tracks, audio tracks, and data like CC, and timecode. Containers align information in a way video and audio can be read back at the same time. ![]() Mp4’s container was a poor naming choice, due to confusion with Mpeg4 the codec. One is a container or wrapper: These formats are like. There are three separate components to a video file.
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