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Original4cc

Valid for: CANoe DE • CANoe4SW DE

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Property

Original4cc

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Description

Contains the original codec FOURCC for a video stream.

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Data Type

dword

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Remarks

  • Depending on the source file, the AVI media source might set this property on the media types that it offers.
  • An AVI file contains a stream header for each stream in the file. The AVI media source translates the stream header into a media type. For compressed video streams, the stream header contains a FOURCC that identifies the video codec. In most cases, the AVI media source converts this FOURCC directly to a subtype, see Video Subtypes. In some cases, however, it maps the original FOURCC to another FOURCC that is equivalent. If so, the media source stores the original FOURCC in the media type, using the Original4cc property.
  • The FOURCC mappings are stored in the Registry under the following key: HKEY_CLASSES_ROOT\MediaFoundation\MapVideo4cc
  • Each entry is a dword value. The name of the entry is the hexadecimal representation of the FOURCC, without an 0x prefix, and with the first character appearing first in the string. For example, the FOURCC code abcd would appear as 61626364. The value of the entry is the equivalent FOURCC code.