FFmpeg

Commit Graph

Author	SHA1	Message	Date
Alex Converse	d70fa4c423	Define POW_SF2_ZERO in aac.h and use for ff_aac_pow2sf_tabp[] offsets instead of hardcoding 200 everywhere.	14 years ago
Michael Niedermayer	30fe971934	aac: add headers needed for log2f() Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
Young Han Lee	57cc1ad35f	aacenc: reduce the number of loop index variables Signed-off-by: Janne Grunau <janne-libav@jannau.net>	14 years ago
Young Han Lee	00f0b4b92e	aacenc: indentation	14 years ago
Young Han Lee	92efa2bdd9	aacenc: fix the side calculation in search_for_ms	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Nathan Caldwell	4afedfd8e5	aacenc: cosmetics, indentation, and comment clarification Correct bad indentation in aaccoder Clarify and correct comments in 3GPP psymodel, other cosmetics.	14 years ago
Young Han Lee	f578854efc	aaccoder: Change FFMAX for allzero flag to OR bit operation Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Alex Converse	63e1278d88	aacenc: TLS: Save maximum values for each swb in a table. This gives an almost 20% speedup. Originally committed as revision 24484 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	031d5cea04	10l: Remove some commented out code that slipped in. Originally committed as revision 24483 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	fe461767e6	aacenc: TLS: Try to preserve some energy in each non-zero band. 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	15 years ago
Alex Converse	c226fc5bfb	aacenc: Prevent premature termination of the two loop search. Originally committed as revision 24476 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	51ffd3a62f	aacenc: Favor log2f() and sqrtf() over log2() and sqrt(). Originally committed as revision 24473 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	04d72abf17	aacenc: Factorize some scalefactor utilities. Originally committed as revision 24472 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	581a96976b	aacenc: Convert if () abort() to assert(). Originally committed as revision 24336 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	6d9f1b67e8	Cosmetics: Whitespace Originally committed as revision 24333 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	a2310d1e41	10l: Add a missing const. Originally committed as revision 24274 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	1676b09994	aacenc: Template quantize_and_encode_band_cost(). Originally committed as revision 24273 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	804d489c4a	aacenc: Fill in the estimated codebook for the final computed scalefactor in the TLS. Originally committed as revision 23869 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	c91dce994d	aacenc: Remove an unnecessary division from the TLS. Originally committed as revision 23368 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	911fbc452b	Cosmetics: whitespace Originally committed as revision 23367 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	04d6a54e13	aacenc: Remove unnecessary variables and scopes in the TLS. Originally committed as revision 23366 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	9069b7d35f	Fix declaration after statement Originally committed as revision 23331 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	0ecfa7b7c7	aacenc: Split find_max_val() from find_min_book() to eliminate duplicate searches. Originally committed as revision 23322 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	af2ee6fc49	Remove useless costly inf checks from the trellis scalefactor search. Originally committed as revision 23319 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	acc9f51fe1	aacenc: Trellis over scalefactors using an estimated codebook rather than every codebook. 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
Alex Converse	144c5e3dd2	aacenc: Only trellis over a column of 61 scalefactors (reduced from 256). 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
Alex Converse	05e659ef83	aacenc: Factor out find_min_book so it can be used by multiple coefficient coders. Originally committed as revision 23316 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	0175d7886f	fmaxf -> FFMAX to fix pre-C99 systems Originally committed as revision 23138 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	759510e6af	aacenc: Add a rate only trellis for codebook selection for the TLS. Originally committed as revision 23136 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	4d986b7172	aacenc: Use exact values when quantizing, not fuzzy values. 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
Alex Converse	51cbabc792	aacenc: Use an estimated codebook for the TLS (two loop search). Originally committed as revision 23134 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	46174079c9	10l: store the result of clipping added in r23035 Originally committed as revision 23037 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	32fa7725d2	Make the faac inspired quantizer search make sense for a slightly narrower definition of "make sense." Originally committed as revision 23035 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Diego Biurrun	ba87f0801d	Remove explicit filename from Doxygen @file commands. 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
Alex Converse	508f092a78	aacenc: Merge quantize_band_cost() with quantize_and_encode_band(). 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
Alex Converse	f5e82fec3d	aacenc: Use preprocessor constants for trellis states and stages. Originally committed as revision 19948 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	9072c29e40	aacenc: Split paths in the scalefactor selection trellis into a 2-D array. Originally committed as revision 19947 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	9d4f6f10ae	aacenc: Replace cbrt() with cbrtf() when the result is destined for float storage. Originally committed as revision 19946 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	0bd9aa449a	aacenc: Multiple distortion by lambda after it's summed and not each individual term before. Originally committed as revision 19945 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	06d6b962e5	Cosmetics: Reindent after r19943. Originally committed as revision 19944 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	a71e9b6254	aacenc: Don't make unnecessary compares to the escape value in tight loops. Originally committed as revision 19943 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	dd0e43e4bb	Re-add search_for_ms to the coefficients encoders to silence warnings Originally committed as revision 19733 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	a62d6cfeff	Be sure to increment our position in the coefficient array when skipping a zero band in the twoloop scalefactor search. Originally committed as revision 19480 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	5cf20d07ad	Remove an unused field from the BandCodingPath struct. Originally committed as revision 19473 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	0193992252	Actually use all the codebooks we are iterating over in the two-loop scalefactor search. Originally committed as revision 19472 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	932e6a5a4c	Fix an integer overflow in the AAC encoder. Originally committed as revision 19470 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	3d51be014c	Replace pow(x, 0.75) with sqrtf(x * sqrtf(x)) for a 33% speedup. Originally committed as revision 19459 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	c369e83608	Dead code removal in the AAC encoder. Originally committed as revision 19457 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago
Alex Converse	a5762c9b59	When calculating AAC quantized band cost, don't leave garbage in the bit count for the 0 codebook. Originally committed as revision 19444 to svn://svn.ffmpeg.org/ffmpeg/trunk	16 years ago

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56 Commits (ecc297308ff3cb8b20359df44108ac299b22bdf1)