b6c7758168
Move constant multiplication out of the loop
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Originally committed as revision 15404 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-24 20:31:24 +00:00
e60daa340b
Cosmetics: move convolve() together with the other DSP functions
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Originally committed as revision 15403 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-24 20:05:22 +00:00
a987a126fd
Simplify: move division by constant off the loop
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Originally committed as revision 15402 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-24 20:03:58 +00:00
645a6be1e7
Merge the 2 lpc loops.
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This changes the output by (stddev: 0.21 PSNR:109.51, file:ddinterview28.ra),
the changes are due to float rounding inaccuracies and do not happen if doubles
are used.
Originally committed as revision 15394 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-23 23:16:48 +00:00
571bbaf814
Factorize lpc code slightly.
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Originally committed as revision 15393 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-23 22:49:22 +00:00
faf6d6964b
Use SAMPLE_FMT_FLT instead of doing the float->int conversion in the
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decoder. This changes the output very little and any difference should
be inaudible.
Originally committed as revision 15343 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-17 19:26:37 +00:00
9547cadb8d
Cosmetics: line breaks
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Originally committed as revision 15308 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-13 16:56:58 +00:00
111734de09
Simplify: use a single history buffer for gain and a single one for
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speech instead of having two for each in the context.
Originally committed as revision 15307 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-13 16:49:05 +00:00
9c10ab6cd1
Cosmetics: align spec references
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Originally committed as revision 15300 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-11 19:10:26 +00:00
5381a00a2b
Rename function: s/colmult/apply_window/
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Originally committed as revision 15299 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-11 19:06:54 +00:00
36b3e36e00
misc spelling/wording/grammar fixes
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Originally committed as revision 15296 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-11 08:13:23 +00:00
fd8897e803
Convert table to integer.
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Originally committed as revision 15292 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-10 19:00:02 +00:00
1be0fc2909
Avoid duplicating compute_lpc_coefs() function in both the RA288 and AAC decoders.
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Originally committed as revision 15193 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-09-04 11:03:14 +00:00
8089c652a7
Check *data_size in decode_frame()
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Originally committed as revision 14636 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-06 03:00:15 +00:00
5991704634
Cosmetics: alignment
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Originally committed as revision 14635 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-06 02:49:22 +00:00
e3751aa6ec
Flip (by making buf[i] -> buf[size-i-1]) two buffers: {sp,gain}_block. This
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needs duplicating a few loops, but now the code is clearer.
Originally committed as revision 14634 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-06 02:44:59 +00:00
6888b4fcec
Rename prodsum() function to convolve()
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Originally committed as revision 14615 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-05 04:52:33 +00:00
fd76c37fd9
Modify all codecs to report their supported input and output sample format(s).
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Originally committed as revision 14482 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-31 10:47:31 +00:00
4ca7e74c1f
Do not declare a counter as unsigned when it is not needed
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Originally committed as revision 14469 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-29 18:22:31 +00:00
4e33ed368a
Cosmetics: rename loop counter vars to i,j
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Originally committed as revision 14468 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-29 18:20:49 +00:00
045e21cc19
Cosmetics: new line
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Originally committed as revision 14457 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 10:49:44 +00:00
e7e4f476c0
Remove the now useless phase variable from context
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Originally committed as revision 14456 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 10:49:14 +00:00
c749f3db98
Cosmetics: make comment match var name
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Originally committed as revision 14454 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 05:18:39 +00:00
6509507fad
Cosmetics: align comments
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Originally committed as revision 14453 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 05:16:51 +00:00
f285e6dd31
Rename two context vars: s/sb/sp_block/, s/lhist/gain_block/
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Originally committed as revision 14452 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 04:53:05 +00:00
36826ee0df
Declare temporary buffers to be only of the necessary size
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Originally committed as revision 14451 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 04:37:58 +00:00
5e707c5905
Remove redundant comments
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Originally committed as revision 14450 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 04:25:51 +00:00
c6ad13044a
Cosmetics: do not align with now removed next instruction
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Originally committed as revision 14449 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 04:24:08 +00:00
2c46367163
Cosmetics: remove braces and useless newline
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Originally committed as revision 14448 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 04:07:18 +00:00
2b356efec2
Change the way the input is passed to do_hybrid_filter(). Before, in[0] was
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the oldest input sample passed and in[n-1] was the latest. Now it is the
contrary. This allows making backward_filter() somewhat simpler.
Originally committed as revision 14447 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 02:55:47 +00:00
aed39f6c02
Remove RA288Context.output buffer. This buffer is just RA288Context.sb
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backwards (output[i] == sb[N-i], where N is the buffer length).
This makes the code slower, this will be fixed in my next commit.
Originally committed as revision 14446 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-28 02:53:07 +00:00
b26d320583
Add a few comments pointing to the G.728 specification
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Originally committed as revision 14444 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-27 22:22:51 +00:00
854ce441c3
Remove the history buffer from the context. It can easily be evaluated
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from the lhist buffer.
Originally committed as revision 14443 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-27 22:21:41 +00:00
0143ec2a7e
Rename two context buffers: pr{1,2} -> {sp,gain}_lpc. Also add a few doxy
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comments.
Originally committed as revision 14437 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-27 20:58:29 +00:00
59da0390dc
Remove st1 and st2 temporary buffers in backward_filter() and use instead
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RA288Context.pr{1,2}. Note that the pr{1,2} buffers are one unity smaller
than the st{1,2} buffers. My guess is that the original coder decided to
add one to the array sizes "just to be sure".
Originally committed as revision 14435 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-27 20:55:27 +00:00
3df136d438
Change slightly the meaning of RA288Context.phase. This
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allows to remove two intermediary buffers and avoid a few
memcpy's.
Originally committed as revision 14432 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-27 20:35:32 +00:00
f42eb5715d
Remove st1 and st2 variables from context, since they could be just local vars
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Originally committed as revision 14421 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 15:14:50 +00:00
272d258ab9
Rename st{1,2}{a,b} context variables to more meaningful names: {sp,gain}_{rec,hist}
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Originally committed as revision 14420 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 15:10:17 +00:00
efa86ebe4c
Cosmetics: remove useless parenthesis
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Originally committed as revision 14418 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 14:38:29 +00:00
e07c5ade5e
Move colmult() function to the beginning of file to group DSP-related functions.
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Originally committed as revision 14417 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 14:35:50 +00:00
5af20c207e
Remove an useless comment describing colmult()
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Originally committed as revision 14416 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 14:33:53 +00:00
d899014ee2
Remove an useless comment describing prodsum()
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Originally committed as revision 14415 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 14:33:25 +00:00
952a980d75
Give the context variables of ra288 a better name: s/glob/ractx/
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Originally committed as revision 14414 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 14:31:47 +00:00
029e1c01b5
Give the context structure of ra288 a better name: s/Real288_internal/RA288Context/
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Originally committed as revision 14413 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-26 14:29:39 +00:00
a53b545068
Cosmetics: grammar nits
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Originally committed as revision 14368 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-24 11:55:01 +00:00
2477d60944
Rename update() function to backward_filter() and add a doxy comment
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Originally committed as revision 14364 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-24 04:29:23 +00:00
a6755f8d53
Rename and comment bandwidth broadening tables
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(s/table1a/syn_bw_tab/, s/table2a/gain_bw_tab/).
Originally committed as revision 14363 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-24 04:15:50 +00:00
5e65f5df0e
Follow FFmpeg convention of returning negative values on error in eval_lpc_coeffs()
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Originally committed as revision 14362 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-24 04:07:50 +00:00
a3896c6377
Rename pred() to eval_lpc_coeffs() and add a doxy comment
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Originally committed as revision 14361 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-24 04:05:41 +00:00
a0cce1587b
Give windowing tables a more descriptive name
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(s/table1/syn_window/, s/table2/gain_window/).
Originally committed as revision 14360 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-07-24 03:50:06 +00:00
Vitor Sessak
Michael Niedermayer
Diego Biurrun
Peter Ross