virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-08-10 06:10:52 +02:00
Code Issues Releases Activity

aarch64/hevcdsp_idct_neon: Add implementation for idct dc 12

Browse Source 
Reduce binary size at the same time. The performance compared to clang -O3
is the same.

Reviewed-by: Martin Storsjö <martin@martin.st>
Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
This commit is contained in:
Zhao Zhili
2025-02-20 00:50:31 +08:00
parent 5977bff569
commit 3e9777dc75
2 changed files with 35 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
libavcodec/aarch64/hevcdsp_idct_neon.S
View File

@@ -901,15 +901,33 @@ endfunc
.endm
// void ff_hevc_idct_NxN_dc_DEPTH_neon(int16_t *coeffs)
.macro idct_dc size, bitdepth
function ff_hevc_idct_\size\()x\size\()_dc_\bitdepth\()_neon, export=1
.macro idct_dc size
function ff_hevc_idct_\size\()x\size\()_dc_10_neon, export=1
ldrsh w1, [x0]
add w1, w1, #1
asr w1, w1, #1
add w1, w1, #(1 << (13 - \bitdepth))
asr w1, w1, #(14 - \bitdepth)
dup v0.8h, w1
add w1, w1, #(1 << (13 - 10))
asr w1, w1, #(14 - 10)
b 2f
endfunc
function ff_hevc_idct_\size\()x\size\()_dc_12_neon, export=1
ldrsh w1, [x0]
add w1, w1, #1
asr w1, w1, #1
add w1, w1, #(1 << (13 - 12))
asr w1, w1, #(14 - 12)
b 2f
endfunc
function ff_hevc_idct_\size\()x\size\()_dc_8_neon, export=1
ldrsh w1, [x0]
add w1, w1, #1
asr w1, w1, #1
add w1, w1, #(1 << (13 - 8))
asr w1, w1, #(14 - 8)
2:
dup v0.8h, w1
.if \size < 8
stp q0, q0, [x0]
.elseif \size < 16
@@ -928,14 +946,7 @@ function ff_hevc_idct_\size\()x\size\()_dc_\bitdepth\()_neon, export=1
endfunc
.endm
idct_dc 4, 8
idct_dc 4, 10
idct_dc 8, 8
idct_dc 8, 10
idct_dc 16, 8
idct_dc 16, 10
idct_dc 32, 8
idct_dc 32, 10
idct_dc 4
idct_dc 8
idct_dc 16
idct_dc 32

8
libavcodec/aarch64/hevcdsp_init_aarch64.c
View File

@@ -91,6 +91,10 @@ void ff_hevc_idct_4x4_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_8x8_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_16x16_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_32x32_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_4x4_dc_12_neon(int16_t *coeffs);
void ff_hevc_idct_8x8_dc_12_neon(int16_t *coeffs);
void ff_hevc_idct_16x16_dc_12_neon(int16_t *coeffs);
void ff_hevc_idct_32x32_dc_12_neon(int16_t *coeffs);
void ff_hevc_transform_luma_4x4_neon_8(int16_t *coeffs);
#define NEON8_FNASSIGN(member, v, h, fn, ext) \
@@ -267,5 +271,9 @@ av_cold void ff_hevc_dsp_init_aarch64(HEVCDSPContext *c, const int bit_depth)
c->add_residual[1] = ff_hevc_add_residual_8x8_12_neon;
c->add_residual[2] = ff_hevc_add_residual_16x16_12_neon;
c->add_residual[3] = ff_hevc_add_residual_32x32_12_neon;
c->idct_dc[0] = ff_hevc_idct_4x4_dc_12_neon;
c->idct_dc[1] = ff_hevc_idct_8x8_dc_12_neon;
c->idct_dc[2] = ff_hevc_idct_16x16_dc_12_neon;
c->idct_dc[3] = ff_hevc_idct_32x32_dc_12_neon;
}
}