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arm: Implement a NEON version of 422 h264_h_loop_filter_chroma

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Previously, the 420 version was used even for 422.

This fixes occasional checkasm failures.

Signed-off-by: Martin Storsjö <martin@martin.st>
This commit is contained in:
Martin Storsjö
2019-03-12 11:49:18 +02:00
parent f8abf7d4df
commit 0676de935b
2 changed files with 26 additions and 1 deletions
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8
libavcodec/arm/h264dsp_init_arm.c
View File

@@ -33,6 +33,8 @@ void ff_h264_v_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,
int beta, int8_t *tc0);
void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha,
int beta, int8_t *tc0);
void ff_h264_h_loop_filter_chroma422_neon(uint8_t *pix, int stride, int alpha,
int beta, int8_t *tc0);
void ff_weight_h264_pixels_16_neon(uint8_t *dst, int stride, int height,
int log2_den, int weight, int offset);
@@ -76,7 +78,11 @@ static av_cold void h264dsp_init_neon(H264DSPContext *c, const int bit_depth,
c->h264_v_loop_filter_luma = ff_h264_v_loop_filter_luma_neon;
c->h264_h_loop_filter_luma = ff_h264_h_loop_filter_luma_neon;
c->h264_v_loop_filter_chroma = ff_h264_v_loop_filter_chroma_neon;
c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;
if (chroma_format_idc <= 1)
c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon;
else
c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma422_neon;
c->weight_h264_pixels_tab[0] = ff_weight_h264_pixels_16_neon;
c->weight_h264_pixels_tab[1] = ff_weight_h264_pixels_8_neon;

19
libavcodec/arm/h264dsp_neon.S
View File

@@ -237,6 +237,7 @@ function ff_h264_h_loop_filter_chroma_neon, export=1
h264_loop_filter_start
sub r0, r0, #2
h_loop_filter_chroma420:
vld1.32 {d18[0]}, [r0], r1
vld1.32 {d16[0]}, [r0], r1
vld1.32 {d0[0]}, [r0], r1
@@ -271,6 +272,24 @@ function ff_h264_h_loop_filter_chroma_neon, export=1
bx lr
endfunc
function ff_h264_h_loop_filter_chroma422_neon, export=1
h264_loop_filter_start
push {r4, lr}
add r4, r0, r1
add r1, r1, r1
sub r0, r0, #2
bl h_loop_filter_chroma420
ldr r12, [sp, #8]
ldr r12, [r12]
vmov.32 d24[0], r12
sub r0, r4, #2
bl h_loop_filter_chroma420
pop {r4, pc}
endfunc
@ Biweighted prediction
.macro biweight_16 macs, macd