shithub: opus

816f8935 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/31 17:35

removed stupid code in transient_analysis()

4f0de0ba – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/31 05:51

Fixed stupid bug for single-sample bands

43e94062 – Timothy B. Terriberry <tterribe@xiph.org> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/05/29 19:02

Change ec_{enc|dec}_bit_prob to take probabilities in units of 1/65536 instead of 1/256. This allows them to use a single 16x16->32 multiply instead of a 24x8->32 multiply. Also change the time-frequency resolution flag coding to ensure that "0" is always the most-probable symbol (i.e., that prob("1")<50%), as that's where all the rounding error accumulates.

299747ee – Timothy B. Terriberry <tterribe@xiph.org> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/05/29 18:47

Provide direct implementations ec_{enc|dec}_bit_prob() that do not require a division instead of using the normal entropy coder path. This should be exactly equivalent to the existing code.

8cc945c5 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/29 04:07

Cleaning up VBR to be frame-size independent

52462389 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/28 20:28

Folding tuning

7331977c – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/28 17:12

RD optimisation now takes bitrate into account

bdb5871b – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/28 14:58

Simplification to the transient detection code

88232617 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/28 14:01

More simplifications to the Viterbi code

0ef39c9c – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/28 13:50

Simplifications to the tf_res RD code

9d420c58 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/28 13:26

Viterbi-based RD optimization of the tf_res decisions

581fdba9 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/28 02:56

changing probability of first tf resolution symbol

163b76e8 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/27 19:56

Adaptive time-frequency resolution

8035b658 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/27 12:23

Adds a range coder call to encode a single bit with arbitrary probability

c4ac5702 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/26 11:04

Fixed a long-standing rare mismatch

40e993c0 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/26 11:04

Re-organised the special case for N==1

c5d00a06 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/26 07:27

Bunch of fixes for frames of 2.5 ms.

9d069846 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/25 19:54

More recombining "infrastructure"

cee66b51 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/25 19:15

Code for recombining bands (not enabled yet)

2fcb2397 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/24 05:02

Removing the rest of the >32-bit PVQ code

cccdfd48 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/21 13:36

Minor code simplifications

a148df18 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/21 12:05

Doing folding from the highest freq possible

791cfe1f – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/21 11:44

Increasing the temporal resolution of transients

9f89cab6 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/21 10:18

Improving the transient detection

67217ee7 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/21 09:58

Splitting transients in time domain

6384196f – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/21 06:44

Moving code to quant_band()

4c27552b – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/21 03:54

Tuning/cleanup of angle quantization

cae30df0 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/20 20:26

Getting rid of PVQ-level split

4aa1b8df – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/19 18:02

Most 5ms bands now have even width

20639c41 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/19 12:10

Tuned the 5ms mode to have a band at 4 kHz and one at 8 kHz

5f96146a – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/19 09:38

Implemented CELT_SET_START_BAND

f5e2e32d – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/19 08:05

Support for passing your own ec state to the decoder

4794f2ec – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/05/19 07:56

Support for passing your own ec state to the encoder

c1ca587d – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/15 19:47

Saving ~1 kB by using chars for the alloc table

72c97f56 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/18 19:19

Sharing more code between encode and decode (bis)

746b2a8c – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/14 18:12

Merged encoding/decoding of mono/stereo

eb926680 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/14 03:47

Trying to prevent PVQ-level splits

c803ee19 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/13 20:17

Entropy-coding the new split parameter.

2e8ba548 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/12 20:04

New band splitting method based on the stereo code

1520f892 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/11 19:38

Stereo quantization also made more generic

80e56f1a – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/11 19:13

Making stereo code a bit more generic

06073824 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/11 17:01

Trivial code cleanup

aead79b1 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/11 03:34

Proper use of logN and logM for the offsets

c40d6f97 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/10 17:55

Making stereo code use [un]quant_bands() as well

94216aeb – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/10 17:27

Allocation adjustment code in quand_band().

2123f358 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/09 15:45

Cleaning up the folding code.

d56c610c – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/07 16:30

API change: optional resynthesis

e949b720 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/07 03:48

Fixed pitchEnd wrt to variable frame size. It should (sort of) all work now

ce4dd367 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/07 03:45

More work on variable frame size (getting rid of FRAMESIZE() )

017fa857 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/06 18:11

Changing the encoder API to add the frame size

fbd82eb8 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/06 16:15

Oops! Fixed the fixed-point build

811f21ab – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/06 03:38

Fix for very short frame size (M=1)

073d0bc9 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/05 17:37

Yet another step towards variable frame size

0475267e – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/05 03:21

More preparation work for variable frame size

3b918bac – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/05/04 20:02

replaced instances of mode->nbShortMdcts by the dynamic number of MDCTs (M)

7f1c9427 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/04/29 07:24

Allocation table stored with BITRES accuracy based on the short block size

5f633543 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/04/29 05:58

shortWindow hadn't been used for a while

f7547a4e – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/28 18:10

Shrinking the MDCT's table by separately rotating by the 1/(8N) factor

65ee67ac – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/26 03:08

Making the band definition the same at all frame sizes.

be8d1259 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/04/21 14:09

Minor tweak to the band layout offset

6578ea0e – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/20 19:52

Re-enabled special stereo code for N=2

4fb95687 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/20 19:30

Bands are now (again) a multiple of the number of short MDCTs

d6b79eeb – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/04/20 13:31

Skipping transient shape renormalisation in the encoder because

281a63ea – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/04/20 06:43

Bump bitstream version now that we broke everything

8271dc8a – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/19 20:47

Tuning the amount of spreading based on Koen's feedback

9c30de57 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/04/19 09:32

Improved transient_analysis() by adding one frame of memory.

b450ed48 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/18 18:47

Removed unnecessary calls to log2Amp()

b8ba70c9 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/18 18:10

Disabling resynthesis when not needed (need to remove folding for this to work)

b8a06ee0 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/18 05:57

Re-introducing the successive spreading rotations, but in a two-step

65a48706 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/17 13:29

Corrected some non-sensical code

628c0253 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/16 16:57

Converted a few double-precision constants to single precision

3ff5e4c2 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/04/14 14:02

Making sure compute_allocation_table() doesn't overrun at lower sampling rates

f080a151 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/04/14 13:45

version string set to 0.8.0-git

137f3366 – Jean-Marc Valin <jean-marc.valin@octasic.com> authored on 2010/04/14 13:42

Changed compute_allocation_table() so it handles ebands that start and end in the same allocation band. Also fixed a minor C89 issue.

31bec963 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/07 14:30

Fix small mode leak (forgot to free the new logN array).

f400a3c5 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/05 19:58

Caching log2_frac(N, BITRES) in the more data to save some CPU

64209a3e – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/05 05:26

A few minor optimisations (compute_allocation, denormalise_bands,

9a92d61e – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/03 12:30

A bit more tuning on the pseudo-frac-Hadamard. Also Trying to improve

354bf60b – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/04/03 05:23

Doing the spreading with a "pseudo-fractional-Hadamard" transform

8974f00d – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/19 20:41

fixed-point: improving accuracy of the energy prediction

c7b01bad – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/19 19:17

fixed-point: slightly increasing the decoder accuracy again

dc8a6eee – Timothy B. Terriberry <tterribe@xiph.org> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/03/15 19:49

Update the log2 approximation to accomodate the increased bit precision from bd0610d21b28b76095a49e601df44fb792b96369. This requires another term in the power series to reduce the error to the level of truncation (peak absolute error 0.621785). Also refactor the rounding bias term so that further changes to DB_SHIFT will leave the result unbiased.

3a4a463f – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/15 18:55

fixed-point: Further reduction in mismatch

70bdf9bf – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/15 16:50

fixed-point: reducing the mismatch in the folded part

bd0610d2 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/13 05:04

Increasing log energy resolution

5503f11a – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/12 17:00

Using the mean energy even when start>0

210ccafa – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/11 17:20

Improves fixed-point precision for quant_coarse_energy

e45ccb16 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/03/01 02:07

Fix quant_bands() for start != 0

3a0bc3d9 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/02/21 10:10

Allowing CELT to skip the low frequencies

5378bf82 – John Ridges <jridges@masque.com> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/02/12 02:08

Updating CELT_RESET_STATE to clear some fields that were "recently" added.

6c79a932 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/01/16 18:35

Getting "make dist" to work again with the files that got removed

619a9681 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/01/16 14:12

Misc changes for 0.7.1.

df726557 – Thorvald Natvig <slicer@users.sourceforge.net> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/01/16 03:06

Change name of libcelt to libcelt0

7f182296 – Stefan de Konink <stefan@konink.de> authored and Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> committed on 2010/01/07 16:27

Updates celtclient to the new API.

74128bef – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2010/01/01 04:33

fixed-point: converted PLC filters and LPC parameters

303b3b62 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2009/12/30 17:40

fixed-point: starting conversion of the new PLC

07fed1bf – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2009/12/28 02:59

Adding a safeguard against unstable LPC, so now there's no way (that I can

d69c1cb3 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2009/12/27 19:34

Making new PLC code work in fixed-point even though it's still using float

aec0ee41 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2009/12/20 19:06

C89 friendliness

d5f99308 – Jean-Marc Valin <jean-marc.valin@usherbrooke.ca> authored on 2009/12/16 17:42

This fixes a bug in stereo PLC (offset wasn't changed between channels)