Jean-Marc Valin
83c26fbd7b
Fixes a ibudget bust and a divide-by-zero at very low bit-rate
2010-09-29 20:05:36 -04:00
Jean-Marc Valin
d74c851feb
Adds a simple dynamic allocation scheme
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This should help on highly tonal signals by increasing the rate of
bands with a lot more energy than the neighbouring bands.
2010-09-29 17:39:54 -04:00
Jean-Marc Valin
b801da5e83
Preventing bands from being coded at a rate below (for now) 3/8 bit/sample
2010-09-28 14:56:20 -04:00
Jean-Marc Valin
f9fdbffb72
Don't allow transients for 2.5 ms frames.
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It never made sense anyway.
2010-09-05 21:02:38 -04:00
Jean-Marc Valin
1b36d6c8b6
Complexity setting now controls two-pass coarse energy quantization
2010-08-31 17:21:52 -04:00
Jean-Marc Valin
1213ba5e68
Complexity setting now does something again
2010-08-31 17:03:13 -04:00
Jean-Marc Valin
1d17b9ae67
New implementation of folding_decision()
2010-08-31 14:51:58 -04:00
Jean-Marc Valin
736efd6909
Fixes some MSVC warnings
2010-08-31 11:52:45 -04:00
Jean-Marc Valin
5c0c936d8f
Fine energy allocation cleanup
2010-08-31 10:11:11 -04:00
Jean-Marc Valin
6d3829f266
CELT no longer prints to stderr (unless assertions are enabled)
2010-08-27 17:52:38 -04:00
Jean-Marc Valin
c09807d3e5
Simplifies the implementation of RESET by placing all the data that needs
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to be cleared at the end of the state structs.
2010-08-27 17:22:54 -04:00
Jean-Marc Valin
7cfb7305f4
Adds _init() functions that do not allocate the states themselves
2010-08-27 16:54:33 -04:00
Jean-Marc Valin
ca8b9928c9
Comments on encoder and decoder struct contents
2010-08-27 16:23:41 -04:00
Jean-Marc Valin
bce1dd0d75
Remove check_mode()
2010-08-27 16:10:39 -04:00
Jean-Marc Valin
d13cd1568d
Unb0rk fixed-point build
2010-08-27 16:05:01 -04:00
Jean-Marc Valin
0410e9ca81
Removing check_decoder()
2010-08-27 16:02:30 -04:00
Jean-Marc Valin
02a3527aa4
Decoder state stored in a single allocated object.
2010-08-27 16:00:01 -04:00
Jean-Marc Valin
6d131087c9
Decoder cleanup
2010-08-27 15:15:32 -04:00
Jean-Marc Valin
190b782e8c
Removing check_encoder()
2010-08-27 15:03:20 -04:00
Jean-Marc Valin
0d8eaa3368
Encoder state now stored in a single allocated object
2010-08-27 14:57:37 -04:00
Jean-Marc Valin
0695a5fbac
Simplifies convoluted/idiotic indexing.
2010-08-27 11:33:18 -04:00
Jean-Marc Valin
f67b4476a0
More IMDCT de-uglification
2010-08-27 01:32:40 -04:00
Jean-Marc Valin
e0ce2cf99d
Removing out_mem from the encoder state.
2010-08-27 00:06:30 -04:00
Jean-Marc Valin
903dbf7558
Inverse MDCT no longer keeps channels interleaved.
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This simplifications also fixes a few bugs in the PLC (hope it didn't create some new ones).
2010-08-26 20:07:27 -04:00
Jean-Marc Valin
ab3784e99f
Small suckage reduction in compute_inv_mdcts(). More to come.
2010-08-26 18:10:09 -04:00
Jean-Marc Valin
5e7f02de2c
Moving intra decision to quant_coarse_energy()
2010-08-08 09:48:22 -04:00
Jean-Marc Valin
908958cad5
Shuffling code around -- no change to the algorithm
2010-08-07 22:15:19 -04:00
Jean-Marc Valin
9099bc36db
Bit-stream reordering
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Coarse first, following by transient info, then spreading
2010-08-07 22:07:08 -04:00
Jean-Marc Valin
be04f5af6c
Reorganizing the VBR code
2010-08-07 21:42:03 -04:00
Jean-Marc Valin
d38d6b9aa1
Implemented variable spreading amount in the decoder
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Decision not yet implemented in the encoder
2010-08-07 09:21:32 -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
017001a512
Simplified flags encoding
2010-08-05 15:42:50 -04:00
Jean-Marc Valin
8cbea177ba
Removing pitch prediction code
2010-08-05 15:28:27 -04:00
Jean-Marc Valin
5d774e075e
Fixed "forced intensity stereo"
2010-08-04 17:17:18 -04:00
Jean-Marc Valin
129964098b
More float conversion cleanup
2010-08-04 09:13:24 -04:00
Jean-Marc Valin
ae01e119cb
Changing some constants to float
2010-08-03 21:43:41 -04:00
Jean-Marc Valin
bc272de74b
Code simplifications for log->amplitude conversion
2010-08-02 09:41:31 -04:00
Jean-Marc Valin
4409224845
Error measurement for stereo as well
2010-07-29 18:32:54 +02:00
Jean-Marc Valin
7b5a086b45
Measuring the normalized error directly within the encoder
2010-07-29 15:01:24 +02:00
Jean-Marc Valin
8d18601413
Fixing the qtheta dependency for the delta allocation
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Removed useless code in transient_analysis()
2010-07-28 22:12:36 +02:00
Jean-Marc Valin
ac1da4f42b
Codec state simplification
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Making the preemphasis memory an array of two, removing unused fields
2010-07-24 12:32:37 -04:00
Jean-Marc Valin
802f6eab9b
Making a bunch of things static
2010-07-23 17:02:23 -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
b1e017f58d
Error checking on the decoder side
2010-07-18 21:20:35 -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
8952c45ea5
The encoder and decoder can now process audio encoded at a higher rate
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than what they're running at.
2010-07-16 21:48:44 -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
3b0df0dc2a
All modes based on 2.5 ms short blocks now use the same definition
2010-07-16 15:55:30 -04:00
