Jean-Marc Valin
bb5288174d
coarse probability model in static modes too
2010-08-25 22:12:18 -04:00
Jean-Marc Valin
5e7f02de2c
Moving intra decision to quant_coarse_energy()
2010-08-08 09:48:22 -04:00
Jean-Marc Valin
504fb3c189
Using the real spectral means instead of the ones
...
after inter-band prediction
2010-08-06 15:56:22 -04:00
Jean-Marc Valin
bc272de74b
Code simplifications for log->amplitude conversion
2010-08-02 09:41:31 -04:00
Jean-Marc Valin
617af25e5c
Cleaning up intra_decision()
2010-07-23 16:54:45 -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
6bf3b0a7a1
The coarse energy budget is no longer part of the bit-stream.
...
It is now the encoder's responsability to take care of it to avoid
busting the budget.
2010-07-19 14:32:40 -04:00
Jean-Marc Valin
525d7cfdc4
Support for adjusting the end band
2010-07-13 18:18:23 -04:00
Jean-Marc Valin
a01106587c
Improved quality of small frame sizes at low bitrate.
...
Adding a temporal energy floor to prevent extremely small values when there's
only one bin in the band.
2010-06-23 15:22:54 -04:00
Jean-Marc Valin
bd0610d21b
Increasing log energy resolution
2010-03-13 10:04:19 -05:00
Jean-Marc Valin
3a0bc3d95c
Allowing CELT to skip the low frequencies
2010-02-25 22:46:55 -05:00
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
bf2398b049
first step for removing the number of channels from the mode
2009-10-15 07:28:19 -04:00
Jean-Marc Valin
7a56741b2e
removing redundant calls to log2()
2009-06-13 23:02:54 -04:00
Jean-Marc Valin
52cb5fb3f6
Adding extra fine bits only when we have rounded down in the allocation
2009-06-10 08:08:55 -04:00
Jean-Marc Valin
24c25a23d1
Folding, coarse energy, source cleanup
2009-06-09 11:56:59 -04:00
Jean-Marc Valin
39710536fc
This makes it possible to use the bits left after PVQ for fine energy.
2009-06-09 00:52:16 -04:00
Gregory Maxwell
888d8ce939
VBR support. VBR API and VBR support in celtenc.
2009-05-21 22:23:25 -04:00
Jean-Marc Valin
32ec58cc3e
Dynamically selecting intra energy based on energy variations from the previous
...
frame
2009-05-01 21:28:58 -04:00
Jean-Marc Valin
18a3b79d24
Add support for intra-coding of the coarse energy.
2009-05-01 19:58:55 -04:00
Jean-Marc Valin
6775de3eae
Unified allocation of fine energy and pulses.
2008-08-02 08:14:42 -04:00
Jean-Marc Valin
c890b58b69
Completed the separation of coarse and fine energy quantisation
2008-08-01 22:26:49 -04:00
Jean-Marc Valin
4ce9205f38
Optimisation: caching the divisions used in the Laplace encoder.
2008-04-23 13:42:10 +10:00
Jean-Marc Valin
5d56183404
fixed-point: log-energy for previous frame now a 16-bit value. This currently
...
intruduces a bit of an encoder-decoder mismatch (Q8 in dB), but it'll be
reduced when the interals of quant_energy_mono() are properly converted to
fixed-point and oldEBands gets rounded instead of truncated.
2008-02-27 11:59:05 +11:00
Jean-Marc Valin
e901fe35b8
fixed-point: added a celt_ener_t type for band energy.
2008-02-26 14:46:26 +11:00
Jean-Marc Valin
c9cc6d3e34
Introducing a (very) crude budget for the energy encoder.
2008-02-13 11:37:41 +11:00
Jean-Marc Valin
98d2a4917e
No more cheating, everything fully quantised
2007-12-07 22:46:47 +11:00
Jean-Marc Valin
8143be3026
energy decoding partially done (cheating a bit)
2007-12-07 16:40:39 +11:00
Jean-Marc Valin
8b0137aa42
Quantisation of band energies (adding files)
2007-12-06 07:51:53 +11:00
