FFmpeg

Commit Graph

Author	SHA1	Message	Date
Alex Converse	b00307ecd0	aacsbr: Add a debug check to sbr_mapping. There have been multiple bugs caused by inconsistencies here. Based on an idea from Michael Niedermayer. CC: libav-stable@libav.org	13 years ago
Alex Converse	0cb93dacee	aac: Reset some state variables when turning SBR off This makes sure the reset flag gets set when SBR gets turned back on and sets control variables for unguided mode back to their defaults. Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind CC: libav-stable@libav.org	13 years ago
Ronald S. Bultje	6e2821160b	Revert "AAC SBR: group some writes." This reverts commit `ba36f14e5d`. It broke decoding on x86-32 on some systems.	13 years ago
Christophe Gisquet	ba36f14e5d	AAC SBR: group some writes. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	13 years ago
Christophe Gisquet	cc412b7104	aacsbr: use a swap index for the Y matrix rather than copy buffers. Signed-off-by: Alex Converse <alex.converse@gmail.com>	13 years ago
Mans Rullgard	8996ed2b73	aacsbr: align some arrays Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Mans Rullgard	aac46e088d	aacsbr: move some simdable loops to function pointers This prepares for assembly optimisations by moving the most time-consuming loops to functions called through pointers in a new context. Signed-off-by: Mans Rullgard <mans@mansr.com>	13 years ago
Alex Converse	17ce52912f	aacsbr: prevent out of bounds memcpy(). Fixes Libav Bug 195. This doesn't make the code handle sample rate or upsample/downsample change properly but this is still a good sanity check. Based on change by Michael Niedermayer. Signed-off-by: Alex Converse <alex.converse@gmail.com>	13 years ago
Michael Niedermayer	944f5b2779	aacsbr: Fix memory corruption. Fixes Ticket760 and Ticket761 Bug Found by: Diana Elena Muscalu Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	ad51833a1a	aacsbr: prevent multiple ff_aac_sbr_ctx_init() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Michael Niedermayer	abe0dbea2e	aacsbr: add a assert0 to check for a inconsistency that occurd during debug. I dont know if this can happen normally but if so it would be quite bad. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Justin Ruggles	9aa8193a23	Add floating-point sample format support to the ac3, eac3, dca, aac, and vorbis decoders. Based on patches by clsid2 in ffdshow-tryout.	14 years ago
Michael Niedermayer	30fe971934	aac: add headers needed for log2f() Signed-off-by: Anton Khirnov <anton@khirnov.net>	14 years ago
Michael Niedermayer	3d462373f8	aac: add math.h needed for log2f() Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Mans Rullgard	26f548bb59	fft: remove inline wrappers for function pointers This removes the rather pointless wrappers (one not even inline) for calling the fft_calc and related function pointers. Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Alex Converse	4a7d992437	aac: remove dead SBR input scaling It has been unused since `9d06d7bce3` Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit `916dee9f45`)	14 years ago
Alex Converse	916dee9f45	aac: remove dead SBR input scaling It has been unused since `9d06d7bce3` Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	733dbe7d18	Remove the add bias hack for the C version of DSPContext.float_to_int16_*(). (cherry picked from commit `9d06d7bce3`)	14 years ago
Justin Ruggles	9d06d7bce3	Remove the add bias hack for the C version of DSPContext.float_to_int16_*().	14 years ago
Alex Converse	afa4248e4e	aacsbr: Eliminate double precision arithmetic. Originally committed as revision 24227 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	fd6eb4a06c	Move Parametric Stereo related ps* files to aacps*. Originally committed as revision 23720 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	cf3b4d9a78	aacsbr: Make dk signed. There is no point in it being unsigned. Originally committed as revision 23671 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	bd9e0e2905	10l: aacsbr: Fix f_master[2] calculation when k2diff == -1. Originally committed as revision 23660 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	a20639017b	Add HE-AAC v2 support to the AAC decoder. Originally committed as revision 23647 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	bc330b5f15	Cosmetics: Fold constants and re-indent after last commit. Originally committed as revision 23520 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	712209d567	Base downsampled SBR synthesis filterbank on a single IMDCT. Based on Han-Wen Hsu, et al. "Fast Complex Quadrature Mirror Filterbanks for MPEG-4 HE-AAC" Originally committed as revision 23519 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	388c795531	10l: Fix types and now unused variables after last commit. Originally committed as revision 23517 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	932963b8e2	Rewrite the SBR decoder QMF analysis filter on top of the IMDCT instead of the RDFT. This is based on a procedure to implement the filterbank on the DCT-IV described in Hsu, H.W. et al. "A Complex Quadrature Mirror Filterbanks for MPEG-4 HE-AAC" http://sites.google.com/site/wenchiehlee1020/Papers/ComplexFB_AES_121paper144.pdf Originally committed as revision 23516 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	dd8871a63b	aacdec: Rename avccontext to avctx. Originally committed as revision 23488 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	17d5959998	10l: The SBR refactor requires the use of 2 independent output X buffers. Originally committed as revision 23014 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	2d23fecd5d	Enforce time border monotonicity. Thanks to Chromium. Originally committed as revision 23000 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	a91d82b5cc	Move the SBR patch count check to prevent overwrites. Thanks to Chromium. Originally committed as revision 22999 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	10678e5c72	Increase size of patch_borders[]. 6 patches means there can be 7 borders. Found by Chromium. Originally committed as revision 22998 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	d0dedce71d	Reindent Originally committed as revision 22996 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	ca6d3f234c	Rewrite ff_sbr_apply in a manner more friendly to PS. This includes merging ff_sbr_dequant into ff_sbr_apply. Originally committed as revision 22995 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	ba659bedb8	Reindent read_sbr_extension. Originally committed as revision 22820 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	73c2704608	Print an error and skip PS when PS is found but explicitly found but signaled to be absent. Originally committed as revision 22819 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	b3e5931d18	aacsbr: DSPUtilize analysis input scaling. Originally committed as revision 22516 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	f8a93a2036	aac: Don't bias output during the IMDCT if SBR will be used. Originally committed as revision 22515 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	6ebc724060	aacsbr: Check that bs_num_env is valid before writing arrays with it as an offset. Originally committed as revision 22413 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	134b8cbb9a	aacsbr: Cleanup read_sbr_grid and copy_sbr_grid after the recent overhaul of those functions. Originally committed as revision 22412 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	f7e7888b2a	aacsbr: Factor out the common end border case from t_q setup. Originally committed as revision 22411 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	ac8d655a79	aacsbr: read bs_rel_bord directly into t_env. Originally committed as revision 22410 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	ecc1f8c3c8	aacsbr: Make the previous value of bs_num_env local to read_sbr_data(). Originally committed as revision 22409 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	46751a65e3	aacsbr: Initialize e_a[1] to -1. This triggers lAPrev (e_a[0]) on the first SBR frame to be -1. The spec is somewhat ambiguous to what this value should be but this increases the accuracy of al_sbr_e_44_1 and similar streams from 14 bits to 15 bits. Originally committed as revision 22408 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	5889172087	aacsbr: Dead code removal. Originally committed as revision 22387 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	afd96c345f	aacsbr: Remove a slightly incorrect comment. The two conditions are equivalent. Originally committed as revision 22386 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Alex Converse	7935078623	aacsbr: Cleanup the newly merged read_sbr_grid, eliminating several context and some duplicate local variables. Originally committed as revision 22384 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago

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65 Commits (7a3df014b9ba134aff85cb2778daebd497d8c79a)