Implementation Date : 2005.09.06
Revision Date : 2012.08.01
Review Date : 2008.01.07
Next Review : 2012.01
- identification: Yes
- validation: Yes
- characterization: Yes
- migration: No
- normalization: Yes
Each supported video stream contained in an AVI file will be normalized into a motion JPEG video stream which contains a sequence of JPEG images. The normalized motion JPEG video stream will have the same video dimension and playback rate(frames/second) as the original stream.
Supported Video Stream Format Supported Video Stream Format FOURCC Normalized Video Stream CinePak CVID Motion JPEG Motion JPEG MJPG Not Applicable Indeo 3.2 IV32 Motion JPEG
Each audio stream in the AVI file will be normalized into an uncompressed PCM (LPCM) audio stream with sample size of 16 bits/sample. The normalized audio stream will have the same sample rate (samples/second) as the original one. The normalized video streams and audio streams will be multiplexed back into an AVI file.
Supported Audio Stream Format Supported Audio Stream Format Format Tag Normalized Audio Stream WAVE LPCM 0x0001 Not Applicable
- content: TBD
- context: TBD
- behavior: TBD
- structure: TBD
- appearance: TBD
Long-term Preservation Strategy
Long-term Preservation Strategy for the original
Migrate to newer AVI versions or to an open, standardized and well supported multimedia file format that is to be a good successor for the AVI file format. No normalized version will be created for AVI 1.0 files. However, each video/audio stream contained in the AVI file will be normalized according to the normalization section in the ingest processing. If the encoded video/audio stream is not in the list of supported video/audio stream formats for AVI file format, the video/audio stream will not be normalized and it will be preserved as bit-level.
Long-term Preservation Strategy for the normalized
Not applicable for AVI 1.0 file format.
- Video Stream: Migrate to an open, standardized and well supported video stream format that does not use interframes (temporal compression).
- Audio Stream: Migrate to an open, standardized and well supported audio stream format that is losslessly compressed.