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lavu/tx: add real to real and real to imaginary RDFT transforms

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These are in-place transforms, required for DCT-I and DST-I.

Templated as the mod2 variant requires minor modifications, and is
required specifically for DCT-I/DST-I.
This commit is contained in:
Lynne
2023-08-03 18:21:23 +02:00
parent fba4546175
commit 11e22730e1
5 changed files with 168 additions and 42 deletions
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doc/APIchanges
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@@ -2,6 +2,9 @@ The last version increases of all libraries were on 2023-02-09
API changes, most recent first:
2023-07-xx - xxxxxxxxxx - lavu 58.18.100 - tx.h
Add AV_TX_REAL_TO_REAL and AV_TX_REAL_TO_IMAGINARY
2023-08-18 - xxxxxxxxxx - lavu 58.17.100 - channel_layout.h
All AV_CHANNEL_LAYOUT_* macros are now compatible with C++ 17 and older.