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* Use __builtin_clz instead of default implementation of fixnormz on GCCJakub Stachowski2012-08-141-0/+12
| | | | | | | | | | | | The library contains architecture specific versions of the clz functions for arm and mips, but the fallback C version for other architectures is pretty slow. By using __builtin_clz on GCC (available since GCC 3.4), we get a significant (20-40 %) speedup of the total running time on x86. Speed difference: 5.1 s instead of 8.6 s for AAC-LC 128 kbit/s and 3.8 s instead of 4.9 s for HE-AACv2 32 kbit/s, on an i7.
* Added license boilerplate to all source files.Dave Burke2012-06-1139-688/+3095
| | | | | | | | | Change-Id: I42a702487e6db4953dca0027710ea4fe266052fd Also: - Removed dead code in several source files. - Minor changes in comments. - No functional changes. No changes in executed code. - Added documentation PDFs.
* Update to 2012_05_11 version.Dave Burke2012-05-124-4/+227
| | | | | | | | | | Fixes: - Don't throw error for invalid bitrate but limit to functional value - More robust ASC parsing - More robust handling of corrupt bitstreams - Handle multiple raw access units Change-Id: Ib49fe2545ff4185fe924126da702fe84ac5c2d87
* Fraunhofer AAC codec.Dave Burke2012-04-1738-0/+5258
License boilerplate update to follow. Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5