Zuxy Meng edcdd87766 avcodec/riscv/h264dsp: Fix edge cases for bi-weight on RISCV ...

The biweight sum (src*weights + dst*weightd + offset) must saturate to
S16 after the dot product is complete, like the x86 SSE2 code does
(paddsw dot product first, then paddsw offset). The RVV code added the
offset first with a wrapping accumulate, so large-magnitude sums wrapped
instead of saturating.

Use vwmulsu.vv followed by vwmaccsu.vx and vsadd.vx to handle saturation
in the correct order. This fixes bi-weight checkasm test for RISCV

Signed-off-by: Zuxy Meng <zuxy.meng@gmail.com>

2026-10-01 17:49:31 -07:00

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h26x

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vvc

avcodec/riscv/vvc: fix implicit fall-through into no-op default cases

2026-08-12 17:21:07 +02:00

aacencdsp_init.c

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aacencdsp_rvv.S

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aacpsdsp_init.c

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aacpsdsp_rvv.S

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ac3dsp_init.c

avcodec/ac3dsp: Constify

2026-09-02 22:31:34 +02:00

ac3dsp_rvb.S

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ac3dsp_rvv.S

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ac3dsp_rvvb.S

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alacdsp_init.c

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alacdsp_rvv.S

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audiodsp_init.c

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audiodsp_rvv.S

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blockdsp_init.c

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blockdsp_rvv.S

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bswapdsp_init.c

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bswapdsp_rvb.S

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bswapdsp_rvv.S

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bswapdsp_rvvb.S

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cpu_common.c

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exrdsp_init.c

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exrdsp_rvv.S

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fdct.h

avcodec/riscv: add vector FDCT implementation

2026-09-11 15:59:03 +00:00

fdctdsp_init.c

avcodec/riscv: add vector FDCT implementation

2026-09-11 15:59:03 +00:00

fdctdsp_rvv.S

avcodec/riscv: add vector FDCT implementation

2026-09-11 15:59:03 +00:00

flacdsp_init.c

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flacdsp_rvv.S

Guard lpc methods in flacdsp and add tests

2026-07-02 02:49:06 +00:00

g722dsp_init.c

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g722dsp_rvv.S

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h263dsp_init.c

avcodec/h263dsp: Use ptrdiff_t for stride

2026-08-11 21:16:28 +02:00

h263dsp_rvv.S

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h264_chroma_init_riscv.c

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h264_intrapred_init.c

rvv: add optimized h264 intra prediction functions

2026-07-05 17:47:56 +00:00

h264_intrapred_rvv.S

rvv: add optimized h264 intra prediction functions

2026-07-05 17:47:56 +00:00

h264_mc_chroma.S

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h264addpx_rvv.S

riscv: asm: Move lx and sx macros to asm.S

2026-09-20 11:16:50 +00:00

h264dsp_init.c

avcodec/h264dsp: Use ptrdiff_t for stride in idct functions

2026-08-13 00:29:25 +02:00

h264dsp_rvv.S

avcodec/riscv/h264dsp: Fix edge cases for bi-weight on RISCV

2026-10-01 17:49:31 -07:00

h264idct_dequant_rvv.S

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h264idct_rvv.S

riscv: asm: Move lx and sx macros to asm.S

2026-09-20 11:16:50 +00:00

h264qpel_init.c

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h264qpel_rvv.S

riscv: asm: Move lx and sx macros to asm.S

2026-09-20 11:16:50 +00:00

hevcdsp_idct_rvv.S

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hevcdsp_init.c

avcodec/riscv/hevcdsp_init: decouple add_residual from RVB guard

2026-07-17 02:44:22 +00:00

huffyuvdsp_init.c

avcodec/huffyuvdsp: Remove pix_fmt parameter from ff_huffyuvdsp_init()

2026-08-02 02:19:05 +02:00

huffyuvdsp_rvv.S

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idctdsp_init.c

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idctdsp_rvv.S

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jpeg2000dsp_init.c

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jpeg2000dsp_rvv.S

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llauddsp_init.c

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llauddsp_rvv.S

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llviddsp_init.c

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llviddsp_rvv.S

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llvidencdsp_init.c

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llvidencdsp_rvb.S

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llvidencdsp_rvv.S

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lpc_init.c

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lpc_rvv.S

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Makefile

avcodec/riscv: add vector FDCT implementation

2026-09-11 15:59:03 +00:00

mathops.h

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me_cmp_init.c

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me_cmp_rvv.S

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mpegvideo_init.c

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mpegvideo_rvv.S

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mpegvideoencdsp_init.c

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mpegvideoencdsp_rvv.S

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opusdsp_init.c

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opusdsp_rvv.S

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pixblockdsp_init.c

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pixblockdsp_rvi.S

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pixblockdsp_rvv.S

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rv34dsp_init.c

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rv34dsp_rvv.S

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rv40dsp_init.c

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rv40dsp_rvv.S

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rvv.S

avcodec/riscv: add vector FDCT implementation

2026-09-11 15:59:03 +00:00

sbrdsp_init.c

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sbrdsp_rvv.S

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startcode_rvb.S

riscv: asm: Move lx and sx macros to asm.S

2026-09-20 11:16:50 +00:00

startcode_rvv.S

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svqenc_init.c

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svqenc_rvv.S

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takdsp_init.c

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takdsp_rvv.S

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utvideodsp_init.c

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utvideodsp_rvv.S

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vc1dsp_init.c

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vc1dsp_rvi.S

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vc1dsp_rvv.S

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videodsp_init.c

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videodsp.S

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vorbisdsp_init.c

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vorbisdsp_rvv.S

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vp7dsp_init.c

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vp7dsp_rvv.S

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vp8dsp_init.c

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vp8dsp_rvi.S

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vp8dsp_rvv.S

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vp8dsp.h

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vp9_intra_rvv.S

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vp9_mc_rvi.S

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vp9_mc_rvv.S

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vp9dsp_init.c

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vp9dsp.h

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