63e1278d88
aacenc: TLS: Save maximum values for each swb in a table.
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This gives an almost 20% speedup.
Originally committed as revision 24484 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-24 17:11:51 +00:00
031d5cea04
10l: Remove some commented out code that slipped in.
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Originally committed as revision 24483 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-24 17:01:50 +00:00
fe461767e6
aacenc: TLS: Try to preserve some energy in each non-zero band.
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Reduce scalefactors in non-zero bands that underflow by twice as much as those
in bands that just fail to hit psy targets.
Originally committed as revision 24482 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-24 16:36:01 +00:00
c226fc5bfb
aacenc: Prevent premature termination of the two loop search.
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Originally committed as revision 24476 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-24 04:23:26 +00:00
51ffd3a62f
aacenc: Favor log2f() and sqrtf() over log2() and sqrt().
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Originally committed as revision 24473 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-24 02:10:59 +00:00
04d72abf17
aacenc: Factorize some scalefactor utilities.
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Originally committed as revision 24472 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-23 22:37:42 +00:00
581a96976b
aacenc: Convert if () abort() to assert().
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Originally committed as revision 24336 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-19 20:53:58 +00:00
6d9f1b67e8
Cosmetics: Whitespace
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Originally committed as revision 24333 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-19 18:37:45 +00:00
a2310d1e41
10l: Add a missing const.
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Originally committed as revision 24274 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-16 20:28:55 +00:00
1676b09994
aacenc: Template quantize_and_encode_band_cost().
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Originally committed as revision 24273 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-07-16 20:02:46 +00:00
804d489c4a
aacenc: Fill in the estimated codebook for the final computed scalefactor in the TLS.
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Originally committed as revision 23869 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-06-28 21:42:57 +00:00
c91dce994d
aacenc: Remove an unnecessary division from the TLS.
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Originally committed as revision 23368 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-28 21:29:56 +00:00
911fbc452b
Cosmetics: whitespace
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Originally committed as revision 23367 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-28 20:45:35 +00:00
04d6a54e13
aacenc: Remove unnecessary variables and scopes in the TLS.
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Originally committed as revision 23366 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-28 20:42:01 +00:00
9069b7d35f
Fix declaration after statement
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Originally committed as revision 23331 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-25 23:25:29 +00:00
0ecfa7b7c7
aacenc: Split find_max_val() from find_min_book() to eliminate duplicate searches.
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Originally committed as revision 23322 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-25 18:35:01 +00:00
af2ee6fc49
Remove useless costly inf checks from the trellis scalefactor search.
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Originally committed as revision 23319 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-25 18:32:59 +00:00
acc9f51fe1
aacenc: Trellis over scalefactors using an estimated codebook rather than every codebook.
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The minimal codebook to encode the band without clipping is used (as is done in the TLS).
Originally committed as revision 23318 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-25 18:31:55 +00:00
144c5e3dd2
aacenc: Only trellis over a column of 61 scalefactors (reduced from 256).
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This still provides plenty of dynamic range, makes every move legal, and greatly reduces the search space.
Originally committed as revision 23317 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-25 18:28:18 +00:00
05e659ef83
aacenc: Factor out find_min_book so it can be used by multiple coefficient coders.
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Originally committed as revision 23316 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-25 18:24:16 +00:00
0175d7886f
fmaxf -> FFMAX to fix pre-C99 systems
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Originally committed as revision 23138 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-14 19:38:17 +00:00
759510e6af
aacenc: Add a rate only trellis for codebook selection for the TLS.
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Originally committed as revision 23136 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-14 16:49:51 +00:00
4d986b7172
aacenc: Use exact values when quantizing, not fuzzy values.
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This requires us to code small escapes; we can't avoid it.
Originally committed as revision 23135 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-14 16:49:40 +00:00
51cbabc792
aacenc: Use an estimated codebook for the TLS (two loop search).
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Originally committed as revision 23134 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-14 16:49:30 +00:00
46174079c9
10l: store the result of clipping added in r23035
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Originally committed as revision 23037 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-06 20:38:42 +00:00
32fa7725d2
Make the faac inspired quantizer search make sense for a slightly narrower definition of "make sense."
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Originally committed as revision 23035 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-05-06 20:18:36 +00:00
ba87f0801d
Remove explicit filename from Doxygen @file commands.
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Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.
Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-04-20 14:45:34 +00:00
508f092a78
aacenc: Merge quantize_band_cost() with quantize_and_encode_band().
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If these two functions aren't matched results may be unexpected.
Originally committed as revision 22655 to svn://svn.ffmpeg.org/ffmpeg/trunk
2010-03-24 17:09:21 +00:00
f5e82fec3d
aacenc: Use preprocessor constants for trellis states and stages.
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Originally committed as revision 19948 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-21 04:32:51 +00:00
9072c29e40
aacenc: Split paths in the scalefactor selection trellis into a 2-D array.
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Originally committed as revision 19947 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-21 04:15:12 +00:00
9d4f6f10ae
aacenc: Replace cbrt() with cbrtf() when the result is destined for float
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storage.
Originally committed as revision 19946 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-21 03:53:39 +00:00
0bd9aa449a
aacenc: Multiple distortion by lambda after it's summed and not each individual
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term before.
Originally committed as revision 19945 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-21 03:50:59 +00:00
06d6b962e5
Cosmetics: Reindent after r19943.
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Originally committed as revision 19944 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-21 03:42:54 +00:00
a71e9b6254
aacenc: Don't make unnecessary compares to the escape value in tight loops.
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Originally committed as revision 19943 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-09-21 03:41:08 +00:00
dd0e43e4bb
Re-add search_for_ms to the coefficients encoders to silence warnings
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Originally committed as revision 19733 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-08-27 17:46:13 +00:00
a62d6cfeff
Be sure to increment our position in the coefficient array when skipping a zero
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band in the twoloop scalefactor search.
Originally committed as revision 19480 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-22 03:53:30 +00:00
5cf20d07ad
Remove an unused field from the BandCodingPath struct.
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Originally committed as revision 19473 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-20 21:52:03 +00:00
0193992252
Actually use all the codebooks we are iterating over in the two-loop scalefactor search.
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Originally committed as revision 19472 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-20 20:32:27 +00:00
932e6a5a4c
Fix an integer overflow in the AAC encoder.
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Originally committed as revision 19470 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-20 18:27:17 +00:00
3d51be014c
Replace pow(x, 0.75) with sqrtf(x * sqrtf(x)) for a 33% speedup.
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Originally committed as revision 19459 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-17 14:21:49 +00:00
c369e83608
Dead code removal in the AAC encoder.
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Originally committed as revision 19457 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-17 14:06:53 +00:00
a5762c9b59
When calculating AAC quantized band cost, don't leave garbage in the bit count
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for the 0 codebook.
Originally committed as revision 19444 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-16 22:20:17 +00:00
988c170547
Change fminf/fmaxf to FFMIN/FFMAX to fix the build on broken operating systems.
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Originally committed as revision 19391 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-09 17:22:59 +00:00
7a4eebcdce
Turn on AAC rate control.
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Originally committed as revision 19379 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-08 23:04:22 +00:00
c8f47d8b79
cosmetics: Remove unnecessary {} around if/for blocks;
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move statements after if/for to the next line.
Originally committed as revision 19378 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-08 21:36:33 +00:00
99d61d340c
cosmetics: prettyprinting, K&R style, break overly long lines
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Originally committed as revision 19377 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-08 21:16:06 +00:00
fd257dc4c0
Cosmetics: Pretty print the AAC encoder.
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Originally committed as revision 19376 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-08 20:36:45 +00:00
78e65cd772
Merge the AAC encoder from SoC svn. It is still considered experimental.
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Originally committed as revision 19375 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-07-08 20:01:31 +00:00
Alex Converse
Diego Biurrun