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FFmpeg/libavcodec/riscv

History

Rémi Denis-Courmont 8009581912 lavc/opusdsp: RISC-V V (128-bit) postfilter ... This is implemented for a vector size of 128-bit. Since the scalar product in the inner loop covers 5 samples or 160 bits, we need a group multipler of 2. To avoid reconfiguring the vector type, the outer loop, which loads multiple input samples sticks to the same multipler. Consequently, the outer loop loads 8 samples per iteration. This is safe since the minimum period of the CELT codec is 15 samples. The same code would also work, albeit needlessly inefficiently with a vector length of 256 bits. A proper implementation will follow instead.		2 years ago
..
Makefile	lavc/opusdsp: RISC-V V (128-bit) postfilter	2 years ago
aacpsdsp_init.c	lavc/aacpsdsp: RISC-V V stereo_interpolate[0]	2 years ago
aacpsdsp_rvv.S	lavc/aacpsdsp: RISC-V V stereo_interpolate[0]	2 years ago
alacdsp_init.c	lavc/alacdsp: RISC-V V append_extra_bits[1]	2 years ago
alacdsp_rvv.S	riscv/alacdsp: drop config.h include	2 years ago
audiodsp_init.c	lavc/audiodsp: RISC-V V scalarproduct_int16	2 years ago
audiodsp_rvf.S	…
audiodsp_rvv.S	lavc/audiodsp: RISC-V V scalarproduct_int16	2 years ago
bswapdsp_init.c	lavc/bswapdsp: RISC-V V bswap16_buf	2 years ago
bswapdsp_rvb.S	lavc/bswapdsp: RISC-V B bswap_buf	2 years ago
bswapdsp_rvv.S	lavc/bswapdsp: RISC-V V bswap16_buf	2 years ago
fmtconvert_init.c	riscv: Fix linking without RVV; change #ifdef into #if	2 years ago
fmtconvert_rvv.S	riscv: remove unnecessary #include's	2 years ago
idctdsp_init.c	lavc/idctdsp: RISC-V V put_signed_pixels_clamped function	2 years ago
idctdsp_rvv.S	riscv: remove unnecessary #include's	2 years ago
opusdsp_init.c	lavc/opusdsp: RISC-V V (128-bit) postfilter	2 years ago
opusdsp_rvv.S	lavc/opusdsp: RISC-V V (128-bit) postfilter	2 years ago
pixblockdsp_init.c	lavc/pixblockdsp: RISC-V diff_pixels & diff_pixels_unaligned	2 years ago
pixblockdsp_rvi.S	riscv: remove unnecessary #include's	2 years ago
pixblockdsp_rvv.S	riscv: remove unnecessary #include's	2 years ago
vorbisdsp_init.c	lavc/vorbisdsp: RISC-V V inverse_coupling	2 years ago
vorbisdsp_rvv.S	riscv: remove unnecessary #include's	2 years ago