General Exchange Format
Encyclopedia
General eXchange Format, 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.
Originally 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.
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.
Originally 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
MXF
Material eXchange Format is a container format for professional digital video and audio media defined by a set of SMPTE standards.- A brief summary of 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 FFmpegFFmpegFFmpeg is a free software project that produces libraries and programs for handling multimedia data. The most notable parts of FFmpeg are libavcodec, an audio/video codec library used by several other projects, libavformat, an audio/video container mux and demux library, and the ffmpeg command line...
multimedia converter and VLC media playerVLC media playerVLC media player is a free and open source media player and multimedia framework written by the VideoLAN project.VLC is a portable multimedia player, encoder, and streamer supporting many audio and video codecs and file formats as well as DVDs, VCDs, and various streaming protocols. It is able to...
free video player support GXF; - theScribe LITE is an GXF player that also supports MXFMXFMaterial eXchange Format is a container format for professional digital video and audio media defined by a set of SMPTE standards.- A brief summary of 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 DirectShowDirectShowDirectShow , codename Quartz, is a multimedia framework and API produced by Microsoft for software developers to perform various operations with media files or streams. It is the replacement for Microsoft's earlier Video for Windows technology...
filter that enables Windows MediaPlayer and other DirectShow based applications to playback GXF files.
External links
- GXF - The General eXchange Format EBU Technical Review, July 2002.
- GXF, MXF and AAF comparison by Brad Gilmer.
- GXF tools by MOG Solutions.