MiniDV is the most popular digital camcorder format at the moment. The type-2 file format requires a small amount of additional processing to split and multiplex the DV stream during the functions of capture and transmit to IEEE 1394 DV devices. This format has the advantage of being backward compatible with VfW, because it contains a standard video stream and at least one standard audio stream. Microsoft refers to this format of storing DV data as type-2. Interleaved DV data can also be split into a single video stream and one to four audio streams within an AVI file. DirectShow, however, easily handles type-1 data streams by routing the streams to a DV Splitter filter that produces a DV-encoded video stream and one or more PCM audio streams for playback or subsequent processing. Microsoft refers to this format as a type-1 DV AVI file.īecause the type-1 format stores data as a single AVI stream, type-1 DV AVI files are not compatible with VfW. This single interleaved stream can be stored in an AVI file as "ivas" stream (for interleaved video/audio stream). The native DV interleaved stream that is produced and consumed in I/O with a DV device contains DV compressed video and pulse code modulated (PCM) audio data. Microsoft provides DV encoder and decoder filters for DirectShow only, and will not provide support for encoding or decoding DV video data for VfW. ![]() Any DV stored as type-1 cannot be used with VfW-based editors. There are two methods of storing DV video data, that is, type-1 and type-2. DV, DVD, CSS, VOB, ISO, VCD, SVCD, XVCD, VHS, CD, CDA, DAT, DTS etc.ĭV stands for Digital Video - video captured to a PC from a digital camcorder.
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