Jean-Marc Valin
6ac26ecf2d
Fixes a stereo bug introduced in the previous commit
2010-08-11 20:38:19 -04:00
Jean-Marc Valin
bb338a9317
Choosing intra frame energy when it's cheaper than inter
2010-08-10 13:20:21 -04:00
Jean-Marc Valin
5e7f02de2c
Moving intra decision to quant_coarse_energy()
2010-08-08 09:48:22 -04:00
Jean-Marc Valin
f412a99e2a
comments
2010-08-06 17:04:13 -04:00
Jean-Marc Valin
0777135275
eMeans[] quantized to 8 bits
2010-08-06 16:34:58 -04:00
Jean-Marc Valin
504fb3c189
Using the real spectral means instead of the ones
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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.
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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.
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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
9d785afb67
Encoder now has a way to check whether an error has occurred
2010-07-18 09:42:05 -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.
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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
47ad4a0938
Doing the log2Amp() just in one place
2010-06-05 01:18:40 -04:00
Jean-Marc Valin
c4ac57023c
Fixed a long-standing rare mismatch
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In cases where the coarse energy quantizer wasn't able to
go down fast enough, we could have a negative error that didn't
get clamped.
2010-05-26 15:04:41 -04:00
Jean-Marc Valin
b450ed48ae
Removed unnecessary calls to log2Amp()
2010-04-18 22:47:58 -04:00
Jean-Marc Valin
8974f00d53
fixed-point: improving accuracy of the energy prediction
2010-03-20 00:41:39 -04:00
Jean-Marc Valin
c7b01bad50
fixed-point: slightly increasing the decoder accuracy again
2010-03-19 23:17:28 -04:00
Jean-Marc Valin
bd0610d21b
Increasing log energy resolution
2010-03-13 10:04:19 -05:00
Jean-Marc Valin
5503f11a3d
Using the mean energy even when start>0
2010-03-12 22:00:10 -05:00
Jean-Marc Valin
210ccafaff
Improves fixed-point precision for quant_coarse_energy
2010-03-11 22:20:19 -05:00
Jean-Marc Valin
3a0bc3d95c
Allowing CELT to skip the low frequencies
2010-02-25 22:46:55 -05:00
George de Vries
6fd0270621
Fixing (read) array overrun for 1024-sample frames.
2009-12-02 20:59:44 -05:00
Jean-Marc Valin
ab4dcc5c90
Allow coarse energy to take almost all the bits. Also, fixed a some issues with
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the VBR rate controller.
2009-10-21 07:08:27 -04:00
Jean-Marc Valin
328b8bd7fc
fixed a few trivial bugs: exporting celt_strerror(), changed DB_SCALING to a
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shift and removed the chec for DISABLE_STEREO in the mode creation.
2009-10-19 19:07:38 -04:00
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
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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
bf2398b049
first step for removing the number of channels from the mode
2009-10-15 07:28:19 -04:00
Jean-Marc Valin
e2b7616e8a
Fixing a few bugs introduced in the energy interleaving changes and due to
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side effects of "continue" statements.
2009-06-17 22:39:46 -04:00
Jean-Marc Valin
b0b23a3579
Interleaving the left and right final fine energy bits
2009-06-17 21:24:33 -04:00
Jean-Marc Valin
fb1b4dae9f
Interleaving the left and right fine energy
2009-06-17 20:37:45 -04:00
Jean-Marc Valin
1b7e9c419a
intealeaving the left and right coarse energy
2009-06-17 08:02:36 -04:00
Jean-Marc Valin
66fb246219
removing redundant calls to exp2()
2009-06-14 12:31:33 -04:00
Jean-Marc Valin
095abafcb7
Simplifying the stereo energy quantisation functions now that energy is
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de-interleaved
2009-06-14 09:29:51 -04:00
Jean-Marc Valin
83c26e713c
Now storing the band energies in de-interleaved format when doing stereo
2009-06-14 09:19:51 -04:00
Jean-Marc Valin
7a56741b2e
removing redundant calls to log2()
2009-06-13 23:02:54 -04:00
Jean-Marc Valin
a76a5e8f0c
Better ebits rounding and making it possible to add remaining ebits even to
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bands that weren't rounded down.
2009-06-10 22:46:27 -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
Jean-Marc Valin
695ab70027
Minor simplification to the fine energy code
2009-06-07 23:54:22 -04:00
Jean-Marc Valin
d8dcd244ab
This simplifies the energy quantisation by converting to the log2() scale
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directly instead of converting to dB and later dividing by 6.
2009-06-07 13:01:25 -04:00
Gregory Maxwell
dc67fa9a4c
Handle malloc failure in mode_create gracefully without leaking memory.
2009-06-04 21:51:12 -04:00
Jean-Marc Valin
d1d740563a
Should be enough to handle signals with a 144 dB (24-bit) dynamic range
2009-05-23 00:07:08 -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
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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
Gregory Maxwell
54547f16d5
Miscellaneous comment, copyright notice, readme updates.
2009-02-16 19:52:02 -05:00
Jean-Marc Valin
c18fb1d031
Added celt_encoder_ctl() and CELT_SET_COMPLEXITY
2008-09-30 07:36:54 -04:00
