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path: root/libavcodec/aacsbr.c
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2022-11-06aacdec: convert to lavu/tx and support fixed-point 960-sample decodingLynne
This patch replaces the transform used in AAC with lavu/tx and removes the limitation on only being able to decode 960-sample files with the float decoder. This commit also removes a whole bunch of unnecessary and slow lifting steps the decoder did to compensate for the poor accuracy of the old integer transformation code. Overall float decoder speedup on Zen 3 for 64kbps: 32%
2021-01-01lavu: move LOCAL_ALIGNED from internal.h to mem_internal.hAnton Khirnov
That is a more appropriate place for it.
2020-12-31avcodec/aacsbr: Remove remnants of tablegenAndreas Rheinhardt
These tables are always initialized at runtime since commit cb93df0dcbd34107c64ec053504fa294b728a9c9. Reviewed-by: Lynne <dev@lynne.ee> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2017-05-29avcodec/aacsbr: Fix libavcodec/aacsbr.c:257:59: runtime error: division by zeroMichael Niedermayer
Fixes: 1882/clusterfuzz-testcase-minimized-5539735650959360 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Rostislav Pehlivanov <atomnuker@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-12-19lavc/aacsbr: sbr_dequant optimizationGanesh Ajjanagadde
This uses ff_exp2fi to get a speedup (~ 6x). sample benchmark (Haswell, GNU/Linux): old: 19102 decicycles in sbr_dequant, 1023 runs, 1 skips 19002 decicycles in sbr_dequant, 2045 runs, 3 skips 17638 decicycles in sbr_dequant, 4093 runs, 3 skips 15825 decicycles in sbr_dequant, 8189 runs, 3 skips 16404 decicycles in sbr_dequant, 16379 runs, 5 skips new: 3063 decicycles in sbr_dequant, 1024 runs, 0 skips 3049 decicycles in sbr_dequant, 2048 runs, 0 skips 2968 decicycles in sbr_dequant, 4096 runs, 0 skips 2818 decicycles in sbr_dequant, 8191 runs, 1 skips 2853 decicycles in sbr_dequant, 16383 runs, 1 skips Reviewed-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-12-12avcodec/aacsbr: Split the env_facs tableMichael Niedermayer
This also removes a #ifdef and special case for the fixed point case Reviewed-by: Andreas Cadhalpun <andreas.cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-19avcodec/aacsbr: Replace a noise_facs_q check by an av_assert0Michael Niedermayer
The replaced check should have become redundant Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-19avcodec/aacsbr: Split pre dequantization noise factors tableMichael Niedermayer
This allows removing a special case for the fixed point decoder and will make error checks simpler Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-20avcodec: Implementation of AAC_fixed_decoder (SBR-module)Djordje Pesut
Add fixed poind code. Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-20avcodec: Template creation for AAC decoder (SBR-module)Djordje Pesut
Move the existing code to a new template file. Signed-off-by: Nedeljko Babic <nedeljko.babic@imgtec.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-01avcodec/aacsbr: Assert that bs_num_env is positiveMichael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-07-01avcodec/aacsbr: check that the element type matches before applying SBRMichael Niedermayer
Fixes out of array access Fixes: signal_sigsegv_3670fc0_2818_cov_2307326154_moon.mux Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-05-07aacsbr: break infinite loop in sbr_hf_calc_npatchesAndreas Cadhalpun
Signed-off-by: Andreas Cadhalpun <Andreas.Cadhalpun@googlemail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-18avcodec/aacsbr: Replace impossible condition by assertMichael Niedermayer
bits can have a value of 0 or 1 they are never -1 or otherwise negative Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-17Merge commit 'cdce9e8025fff1dee2fd3d6bc28aebc0a330c5a0'Michael Niedermayer
* commit 'cdce9e8025fff1dee2fd3d6bc28aebc0a330c5a0': aacsbr: Fix type for index variable See: a15adabdd32c8736c143fcbef36a0f4a75f772f0 Merged-by: Michael Niedermayer <michaelni@gmx.at>
2015-03-17aacsbr: Fix type for index variableVittorio Giovara
Prevents unsigned overflow and variable truncation. Bug-Id: CID 603186
2015-02-04aacsbr: silence message for SBR extension "padding".Reimar Döffinger
Some files contain a few additional, all-0 bits. Check for that case and don't print incorrect "not supported" message. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de> Signed-off-by: Alex Converse <alex.converse@gmail.com>
2014-12-02avcodec/aacdec: Use avpriv_float_dsp_alloc()Michael Niedermayer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-24Merge commit '208f3abb917757743313da0da714e525e03159d2'Michael Niedermayer
* commit '208f3abb917757743313da0da714e525e03159d2': aacsbr: always initialize max_qmf_subbands See: c6d3b3be1555257ff3f88da6b8dca2158dad2a85 Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-24aacsbr: always initialize max_qmf_subbandsVittorio Giovara
Fixes a wordly warning from clang -Wsometimes-uninitialized.
2014-11-05Merge commit '930ffd46e1e742674aa7cc1c2450020c63b5015b'Michael Niedermayer
* commit '930ffd46e1e742674aa7cc1c2450020c63b5015b': aacsbr: change order of operation to prevent out of array read Conflicts: libavcodec/aacsbr.c See: c2340831b8e9032716acb0aab4893d3cc500213a Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-04Merge commit '9f6f407463ff8b7681befd04b6655bb7c6d9b3e1'Michael Niedermayer
* commit '9f6f407463ff8b7681befd04b6655bb7c6d9b3e1': aacsbr: treat 1-d arrays as such Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-11-04aacsbr: change order of operation to prevent out of array readMichael Niedermayer
CC: libav-stable@libav.org Bug-Id: CID 732250
2014-11-03aacsbr: treat 1-d arrays as suchVittorio Giovara
CC: libav-stable@libav.org Bug-Id: CID 1238802 / CID 1238793 / CID 1238785 CID 1238808 / CID 1238809
2014-09-06aacsbr: support hardcoding tables.Reimar Döffinger
For sbr_qmf_window_us there is even a question if it maybe should be fully hardcoded all the time. Since half of it is coded, it ends up in .data and not .bss. Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
2013-11-26Merge remote-tracking branch 'qatar/master'Michael Niedermayer
* qatar/master: aacsbr: Add some const casts to silence warnings in ff_sbr_apply() Conflicts: libavcodec/aacsbr.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-26aacsbr: Add some const casts to silence warnings in ff_sbr_apply()Diego Biurrun
2013-11-04Merge remote-tracking branch 'qatar/master'Michael Niedermayer
* qatar/master: aacdec: Set the profile during decoding Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-04aacdec: Set the profile during decodingGian-Carlo Pascutto
Previously the profile would not be set if the bitstream needs to be decoded to know the profile. Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-03-14Merge remote-tracking branch 'qatar/master'Michael Niedermayer
* qatar/master: avcodec: av_log_missing_feature(1) ---> avpriv_request_sample() Conflicts: libavcodec/aacsbr.c libavcodec/amrnbdec.c libavcodec/takdec.c libavcodec/tta.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-14Merge commit '63d744e2be39466e3a734c2987cd713e0bac101e'Michael Niedermayer
* commit '63d744e2be39466e3a734c2987cd713e0bac101e': av_log_missing_feature() ---> avpriv_report_missing_feature() Conflicts: libavcodec/aacdec.c libavcodec/tta.c libavformat/mpegts.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-14avcodec: av_log_missing_feature(1) ---> avpriv_request_sample()Diego Biurrun
2013-03-13av_log_missing_feature() ---> avpriv_report_missing_feature()Diego Biurrun
2013-03-08Revert "aacdec: Reconfigure output as needed, disable ↵Michael Niedermayer
pop_output_configuration()" This reverts commit 60dbf2eff92f8aa4683b6dcaba9e694890258ade. This is not needed anymore, Ticket 1694 has been fixed differently
2013-03-08aacsbr: Check for envelope scalefactors overflowingMichael Niedermayer
This prevents various values from becoming stuck at NAN and output to become silent If someone knows a cleaner solution, thats welcome! Fixes Ticket2335 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-07aacdec: Reconfigure output as needed, disable pop_output_configuration()Michael Niedermayer
Fixes Ticket1694 Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-26aacsbr: Silence warning: max_qmf_subbands may be used uninitialized in this ↵Michael Niedermayer
function Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-22mips: optimization for float aac decoder (sbr module)Mirjana Vulin
Signed-off-by: Mirjana Vulin <mvulin@mips.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-09Merge commit '218aefce4472dc02ee3f12830a9a894bf7916da9'Michael Niedermayer
* commit '218aefce4472dc02ee3f12830a9a894bf7916da9': dsputil: Move LOCAL_ALIGNED macros to libavutil Conflicts: libavcodec/dvdec.c libavcodec/imc.c libavcodec/mpegvideo_motion.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-09dsputil: Move LOCAL_ALIGNED macros to libavutilDiego Biurrun
2013-01-23Merge commit '42d324694883cdf1fff1612ac70fa403692a1ad4'Michael Niedermayer
* commit '42d324694883cdf1fff1612ac70fa403692a1ad4': floatdsp: move vector_fmul_reverse from dsputil to avfloatdsp. Conflicts: libavcodec/arm/dsputil_init_vfp.c libavcodec/arm/dsputil_vfp.S libavcodec/dsputil.c libavcodec/ppc/float_altivec.c libavcodec/x86/dsputil.asm libavutil/x86/float_dsp.asm Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-23Merge commit '55aa03b9f8f11ebb7535424cc0e5635558590f49'Michael Niedermayer
* commit '55aa03b9f8f11ebb7535424cc0e5635558590f49': floatdsp: move vector_fmul_add from dsputil to avfloatdsp. Conflicts: libavcodec/dsputil.c libavcodec/x86/dsputil.asm Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-22floatdsp: move vector_fmul_reverse from dsputil to avfloatdsp.Ronald S. Bultje
Now, nellymoserenc and aacenc no longer depends on dsputil. Independent of this patch, wmaprodec also does not depend on dsputil, so I removed it from there also.
2013-01-22floatdsp: move vector_fmul_add from dsputil to avfloatdsp.Ronald S. Bultje
2012-12-07Merge commit 'c25fc5c2bb6ae8c93541c9427df3e47206d95152'Michael Niedermayer
* commit 'c25fc5c2bb6ae8c93541c9427df3e47206d95152': fate: dpcm: Add dependencies SBR DSP x86: implement SSE sbr_hf_gen AAC SBR: use AVFloatDSPContext's vector_fmul fate: image: Add dependencies Changelog: add an entry for deprecating the avconv -vol option x86: float_dsp: fix compilation of ff_vector_dmul_scalar_avx() on x86-32 Conflicts: Changelog libavutil/x86/float_dsp.asm tests/fate/image.mak Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-07AAC SBR: use AVFloatDSPContext's vector_fmulChristophe Gisquet
Around 5% speedup on the code block using 'vector_fmul_add's. Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-12-03Merge commit '0b300daad2f5cb59a7c06dde5ac701685e6edf16'Michael Niedermayer
* commit '0b300daad2f5cb59a7c06dde5ac701685e6edf16': h264: error out on unset current_picture_ptr for h->current_slice > 0 avprobe: report per stream bit rate if set by the decoder aac: avoid a memcpy in sbr_qmf_analysis Conflicts: avprobe.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03aac: avoid a memcpy in sbr_qmf_analysisChristophe Gisquet
Swapping buffer indices allows saving one memcpy that accounts for 1% of the runtime, according to oprofile. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
2012-11-26Merge commit '3d3cf6745e2a5dc9c377244454c3186d75b177fa'Michael Niedermayer
* commit '3d3cf6745e2a5dc9c377244454c3186d75b177fa': aacdec: use float planar sample format for output Conflicts: libavcodec/aacdec.c libavcodec/aacsbr.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-11-26aacdec: use float planar sample format for outputJustin Ruggles
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