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
15 years ago
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
15 years ago
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
15 years ago
0175d7886f
fmaxf -> FFMAX to fix pre-C99 systems
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Originally committed as revision 23138 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
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
15 years ago
06d6b962e5
Cosmetics: Reindent after r19943.
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Originally committed as revision 19944 to svn://svn.ffmpeg.org/ffmpeg/trunk
15 years ago
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
15 years ago
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
15 years ago
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
16 years ago
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
16 years ago
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
16 years ago
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
16 years ago
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
16 years ago
c369e83608
Dead code removal in the AAC encoder.
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Originally committed as revision 19457 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
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
16 years ago
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
16 years ago
7a4eebcdce
Turn on AAC rate control.
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Originally committed as revision 19379 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
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
16 years ago
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
16 years ago
fd257dc4c0
Cosmetics: Pretty print the AAC encoder.
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Originally committed as revision 19376 to svn://svn.ffmpeg.org/ffmpeg/trunk
16 years ago
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
16 years ago
Alex Converse
Diego Biurrun