Codecs: Difference between revisions
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When adding video codec data, we don't want the FourCC value, but the actual codec used | When adding video codec data, we don't want the FourCC value, but the actual codec used to encode the video. | ||
'''Why is that?''' | '''Why is that?''' | ||
Revision as of 19:34, 25 May 2005
The information on this page needs to be updated to reflect the current status of AniDB.
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When adding video codec data, we don't want the FourCC value, but the actual codec used to encode the video.
Why is that?
Groups often change the FourCC to increase "compatibility" so adding the FourCC is sometimes just wrong. However, many modern groups set/leave it to the correct value, and modern containers (Matroska) have no need for FourCCs anymore.
The following is a table showing the codec detection rules used by AOM, in order: FourCC, Codec, short name of codec, ???
('div3', 'DivX 3 Low-Motion', 'DivX3', '3'),
('div3/div3', 'DivX 3 Low-Motion', 'DivX3', '3'),
('div4/div3', 'DivX 3 Fast-Motion', 'DivX3', '3'),
('div5', 'DivX 5.0', 'DivX5', '7'),
('dx50', 'DivX 5.0', 'DivX5', '7'),
('xvid/dx50', 'DivX 5.0', 'DivX5', '7'),
('divx/dx50', 'DivX 5.0', 'DivX5', '7'),
('divx', 'DivX 4 (OpenDivX)', 'DivX4', '5'),
('divx/divx', 'DivX 4 (OpenDivX)', 'DivX4', '5'),
('DIVX/DIVX', 'XviD', 'XviD', '17'),
('xvid', 'XviD', 'XviD', '17'),
('xvid/xvid', 'XviD', 'XviD', '17'),
('xvid/divx', 'DivX 4 (OpenDivX)', 'DivX4', '5'),
('mp42', 'S-Mpeg 4 version 2', 'MS MP4x', '18'),
('mp43', 'S-Mpeg 4 version 3', 'MS MP4x', '18')