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66 commits

Author SHA1 Message Date
Jean-Marc Valin
bb5288174d coarse probability model in static modes too 2010-08-25 22:12:18 -04:00
Jean-Marc Valin
732ea38810 Updated static modes for new pulse cache. 
Fixed a few minor bugs in the process.
 2010-08-25 13:52:27 -04:00
Jean-Marc Valin
3ad8db49c5 New pulse cache 2010-08-25 13:11:09 -04:00
Jean-Marc Valin
8cbea177ba Removing pitch prediction code 2010-08-05 15:28:27 -04:00
Jean-Marc Valin
ca6533cd88 Energy quantization tuning. 
Prediction coefficient now depends on the frame size. Also, the pdfs and means
have been adjusted and better quantized. This breaks compatibility of course.
 2010-07-23 16:10:36 -04:00
Jean-Marc Valin
85f41b20df Some work towards being able to encode a 48 kHz stream from 32 kHz audio (incomplete) 2010-07-16 18:12:45 -04:00
Jean-Marc Valin
af1fce93b1 Pre-emphasis coefficients now part of the mode and has a numerator as well 
as a denominator
 2010-07-16 11:05:06 -04:00
Jean-Marc Valin
72513f3cc7 Sharing twiddle factors across all MDCTs 2010-07-07 21:26:38 -04:00
Jean-Marc Valin
b6a5f9d38f fixed point bug fix in tf_analysis() 2010-07-06 17:57:14 -04:00
Jean-Marc Valin
961f723ab7 Prototypes for the _ec variants of the calls 2010-07-01 10:14:20 -04:00
Jean-Marc Valin
60ff999118 Mode cleanup (removed redundant mdctSize field) 2010-06-27 13:49:38 -04:00
Jean-Marc Valin
01b54b9964 Completely removed the old allocation table. 
Also made the new table an unsigned char array.
 2010-06-03 23:29:35 -04:00
Jean-Marc Valin
cae30df09a Getting rid of PVQ-level split 
Adding one more level of band splitting so that splitting at the
PVQ encoding level is no longer necessary.
 2010-05-21 00:26:03 -04:00
Jean-Marc Valin
017fa85775 Changing the encoder API to add the frame size 2010-05-07 21:20:22 -04:00
Jean-Marc Valin
073d0bc925 Yet another step towards variable frame size 2010-05-07 21:20:22 -04:00
Jean-Marc Valin
5f633543c7 shortWindow hadn't been used for a while 2010-05-07 21:20:21 -04:00
Jean-Marc Valin
281a63eae8 Bump bitstream version now that we broke everything 2010-04-20 10:43:51 -04:00
Jean-Marc Valin
f400a3c573 Caching log2_frac(N, BITRES) in the more data to save some CPU 2010-04-06 20:33:50 -04:00
Jean-Marc Valin
6c79a9325c Getting "make dist" to work again with the files that got removed 2010-01-16 23:35:45 -05:00
Jean-Marc Valin
9319e3e6df Removing original freq-domain pitch code 2009-11-09 13:51:54 +09:00
Jean-Marc Valin
234969c903 Removed the _t from all the celt*_t types to avoid clashing with POSIX 2009-10-17 22:12:42 -04:00
Jean-Marc Valin
8b2ff0da5a Updated copyright notices 2009-10-17 21:40:10 -04:00
Jean-Marc Valin
30f7f813ea Changed all the celt*int*_t types to remove the _t suffix, which is reserved 
by POSIX. The other _t types that are not part of the API are still there
for now. Also, got rid of all that was left of the 64-bit types.
 2009-10-17 14:35:13 -04:00
Jean-Marc Valin
ece94a0475 Improved error handling, and implemented celt_strerror() 2009-10-16 07:31:28 -04:00
Jean-Marc Valin
80ed147663 The number of channels is now set when creating the states rather than when 
creating the mode. This means that the same mode can be shared for mono and
stereo.
 2009-10-15 21:45:32 -04:00
Jean-Marc Valin
bf2398b049 first step for removing the number of channels from the mode 2009-10-15 07:28:19 -04:00
Jean-Marc Valin
4213a7254c Demoved the divisions from the inner pitch prediction loops, bumped the version 
and bit-stream version
 2009-10-01 19:42:18 -04:00
Jean-Marc Valin
4834c92e2b More simplifications from denorm pitch 2009-09-28 19:17:34 -04:00
Jean-Marc Valin
798ab38b27 Using normalised M/S stereo data for folding and use separate folding gains 
for M and S.
 2009-07-12 20:41:29 -04:00
Jean-Marc Valin
6ca7f10ee3 Bump version to 0.6.0 and increase bitstream version. 2009-06-23 21:23:18 -04:00
Jean-Marc Valin
d27e6e34a5 Cleanup: getting rid of some old bits of stereo code that are no longer useful 2009-03-29 22:29:52 -04:00
Jean-Marc Valin
28f0f65325 Preparing for version 0.5.2 2009-02-16 07:35:19 -05:00
Jean-Marc Valin
763abd0475 Bump version to 0.5.1 2008-12-17 20:00:35 -05:00
Jean-Marc Valin
5ac6d42e81 Preparing for 0.5.0 2008-10-09 07:29:39 -04:00
Jean-Marc Valin
400d76e5e2 bump bit-stream version 2008-07-26 09:15:26 -04:00
Jean-Marc Valin
16ca18b9b0 Automatically choosing the overlap based on the frame size. 2008-06-18 23:44:48 +10:00
Jean-Marc Valin
9d1decd1bb short-block MDCT 2008-06-17 13:28:13 +10:00
Jean-Marc Valin
bf2d648bbd Implemented intensity stereo, which required changes all over the place 
to make sure that stereo coupling is done at the band level. Previously
the stereo coupling was done all at once, but there were all kinds of
interactions with the prediction and folding.
 2008-05-23 16:57:34 +10:00
Jean-Marc Valin
59093c090e Added calls to query the bit-stream version. 2008-05-15 21:53:27 +10:00
Jean-Marc Valin
ad6371906a Implemented rate-dependant allocation for the fine energy quantisation. 2008-05-07 13:44:39 +10:00
Jean-Marc Valin
24c9cdaca1 Fixed a bug in the PLC and added code to estimate the pitch from the synthesis 
instead of relying on the one previously transmitted by the encoder.
 2008-05-02 10:34:07 +10:00
Jean-Marc Valin
4ce9205f38 Optimisation: caching the divisions used in the Laplace encoder. 2008-04-23 13:42:10 +10:00
Jean-Marc Valin
b18ec0b08d Reworked the static modes. Now, if all static modes have the same frame size, 
overlap or number of channels, we can pass the hint to the compiler.
 2008-04-11 04:07:52 +10:00
Jean-Marc Valin
05e56c4d6c Defining DISABLE_STEREO now optimises for the mono case 2008-04-10 09:13:05 +10:00
Jean-Marc Valin
db0141e766 Changed some of the mode data from int to celt_int16_t to save memory. 2008-03-10 16:37:37 +11:00
Jean-Marc Valin
29f52990b9 Moved the psycoacoustics data to the mode struct 2008-03-10 13:34:52 +11:00
Jean-Marc Valin
3dbc1d0df9 cleaning up some of the mode stuff 2008-03-08 15:21:24 +11:00
Jean-Marc Valin
81b38c2295 Moved mdct state and window to the mode so it can be shared between multiple 
encoders and decoders.
 2008-02-29 21:08:49 +11:00
Jean-Marc Valin
8b2a59235f fixed-point: energy quantisation is entirely converted now. 2008-02-29 00:32:51 +11:00
Jean-Marc Valin
5e171490a9 Removed some unused parameters and fixed a couple -W warnings 2008-02-28 00:07:23 +11:00