The MSVFW32 (and its 16 bit sibbling MSVIDEO) provide encode/decode video streams. Those DLLs only implement the proper switch between a caller and a driver providing the implementation of the requested format coding/decoding operation.
There's nothing specific in Wine's implementation compared to Windows' one. Here's however a list of the builtin decoding drivers:
Table 14-4. Wine VIDC drivers
Name | Provides |
---|---|
msrle32 | Microsoft's RLE (Run-Length encoded) |
msvidc32 | Microsoft's Video-1 |
iccvid | Radius Cinepak Video Decoder |
Note that Wine also supports native video codecs as well.
All builtin VIDC drivers are 32 bit Unicode DLLs