FFmpeg

Commit Graph

Author	SHA1	Message	Date
Lynne	9e05421dbe	ac3enc_fixed: drop unnecessary fixed-point DSP code	4 years ago
Justin Ruggles	b57e38f52c	ac3dsp: x86: Replace inline asm for in-decoder downmixing with standalone asm Adds a wrapper function for downmixing which detects channel count changes and updates the selected downmix function accordingly. Simplification and porting to current x86inc infrastructure by Diego Biurrun. Signed-off-by: Diego Biurrun <diego@biurrun.de>	8 years ago
Justin Ruggles	43717469f9	ac3dsp: Reverse matrix in/out order in downmix() Also use (float *) instead of (float ()[2]). This matches the matrix layout in libavresample so we can reuse assembly code between the two. Signed-off-by: Diego Biurrun <diego@biurrun.de>	8 years ago
Nedeljko Babic	696e34a6e1	libavcodec: Implementation of AC3 fixedpoint decoder Signed-off-by: Nedeljko Babic <nbabic@mips.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Diego Biurrun	831a118078	Update dsputil- and SIMD-related comments to match reality more closely	11 years ago
Diego Biurrun	4958f35a2e	dsputil: Move apply_window_int16 to ac3dsp The (optimized) functions are used nowhere else.	11 years ago
Mans Rullgard	30b3916425	ac3dec: make downmix() take array of pointers to channel data	12 years ago
Bojan Zivkovic	a74ae4691a	mips: Optimization of AC3 FP encoder and EAC3 FP decoder Signed-off-by: Bojan Zivkovic <bojan@mips.com> Reveiwed-by: Vitor Sessak <vitor1001@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Mans Rullgard	97cb9236cf	ac3: move ac3_downmix() from dsputil to ac3dsp Signed-off-by: Mans Rullgard <mans@mansr.com>	12 years ago
Mans Rullgard	f507a9fe00	ac3enc: move inner loop of compute_rematrixing_strategy to ac3dsp	14 years ago
Justin Ruggles	6ca23db9cc	ac3enc: modify mantissa bit counting to keep bap counts for all values of bap instead of just 0 to 4. This does all the actual bit counting as a final step.	14 years ago
Mans Rullgard	2310ee4b1c	ac3enc: move extract_exponents inner loop to ac3dsp Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	52fd16a264	ac3enc: move compute_mantissa_size() to ac3dsp Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	6d9f52b2cd	ac3: move ff_ac3_bit_alloc_calc_bap to ac3dsp Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Mans Rullgard	f4855a904e	ac3enc: NEON optimised ac3_max_msb_abs_int16 and ac3_exponent_min	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Justin Ruggles	0f999cfddb	ac3enc: add float_to_fixed24() with x86-optimized versions to AC3DSPContext and use in scale_coefficients() for the floating-point AC-3 encoder.	14 years ago
Michael Niedermayer	f7a5e7791d	Revert "ac3enc: add SIMD-optimized shifting functions for use with the fixed-point AC3 encoder" This reverts commit `cc4d3dd3e2`. revert at authors request due to better impementation being available Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Justin Ruggles	f1efbca5e9	ac3enc: add SIMD-optimized shifting functions for use with the fixed-point AC3 encoder.	14 years ago
Justin Ruggles	cc4d3dd3e2	ac3enc: add SIMD-optimized shifting functions for use with the fixed-point AC3 encoder Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	14 years ago
Justin Ruggles	7539a1fee2	ac3enc: Add x86-optimized function to speed up log2_tab(). AC3DSPContext.ac3_max_msb_abs_int16() finds the maximum MSB of the absolute value of each element in an array of int16_t. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> (cherry picked from commit `fbb6b49dab`)	14 years ago
Justin Ruggles	fbb6b49dab	ac3enc: Add x86-optimized function to speed up log2_tab(). AC3DSPContext.ac3_max_msb_abs_int16() finds the maximum MSB of the absolute value of each element in an array of int16_t. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Justin Ruggles	a30ac54a19	Add x86-optimized versions of exponent_min(). Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com> (cherry picked from commit `dda3f0ef48`)	14 years ago
Justin Ruggles	dda3f0ef48	Add x86-optimized versions of exponent_min(). Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago

31 Commits (bc046b715ed2790fbcc9aa2eb6ac318eeb4fbe45)