Samiksha Jaiswal (Editor)

General Exchange Format

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Filename extension
  
.gxf

Type code
  
"gxf "

Type of format
  
Container format

Internet media type
  
application/gxf

Initial release
  
2001 (2001)

Container for
  
audiovisual material

General eXchange Format (GXF), is a file exchange format for the transfer of simple and compound clips between television program storage systems. It is a container format that can contain Motion JPEG (M-JPEG), MPEG, or DV-based video compression standards, with associated audio, time code, and user data that may include user-defined metadata.

Contents

GXF was developed by Grass Valley Group, then standardized by SMPTE as SMPTE 360M, and was extended in SMPTE RDD 14-2007 to include high-definition video resolutions.

GXF has a fairly simple data model compared with SMPTE MXF container format since it should be used for file transfers and not as a storage format with no editing capabilities. SMPTE RDD 14-2007 is only 57 pages long, compared with many hundreds of pages for the MXF standards.

Applications

  • The FFmpeg multimedia converter and VLC media player free video player support GXF;
  • theScribe LITE is an GXF player that also supports MXF.

    • Parser and checker

  • Grassvalley offers a win32-based tool "tstream", for parsing GXF files and checking to ensure the contents conform to spec.

    • Tools

  • GXF::SDK is a C++ [SDK] that implements the GXF standard to ease the reading, creation, sub-clipping, merge and rewrap of GXF files. It supports: MPEG video, DV, PCM, AC3 and Dolby E audio, Timecode, AFD, VBI and ANC;
  • GXFDShowFilter is a DirectShow filter that enables Windows MediaPlayer and other DirectShow-based applications to play back GXF files.

    • References

    General Exchange Format Wikipedia
    (Text) CC BY-SA


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