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vf_blend: Use memcpy when opacity is 0

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For xor mode, 1.8x faster on Haswell.
This commit is contained in:
Timothy Gu 2016-02-13 23:42:45 +00:00
parent ba25936df5
commit ee281b884e
1 changed files with 6 additions and 0 deletions
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6
libavfilter/vf_blend.c
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@ -130,6 +130,7 @@ static void blend_copy ## src(const uint8_t *top, ptrdiff_t top_linesize, \
}
COPY(top)
COPY(bottom)
#undef COPY
@ -512,6 +513,7 @@ static int config_output(AVFilterLink *outlink)
case BLEND_MULTIPLY128:param->blend = is_16bit ? blend_multiply128_16bit: blend_multiply128_8bit;break;
case BLEND_NEGATION: param->blend = is_16bit ? blend_negation_16bit : blend_negation_8bit; break;
case BLEND_NORMAL: param->blend = param->opacity == 1 ? blend_copytop :
param->opacity == 0 ? blend_copybottom :
is_16bit ? blend_normal_16bit : blend_normal_8bit; break;
case BLEND_OR: param->blend = is_16bit ? blend_or_16bit : blend_or_8bit; break;
case BLEND_OVERLAY: param->blend = is_16bit ? blend_overlay_16bit : blend_overlay_8bit; break;
@ -528,6 +530,10 @@ static int config_output(AVFilterLink *outlink)
if (ARCH_X86)
ff_blend_init_x86(param, is_16bit);
if (param->opacity == 0 && param->mode != BLEND_NORMAL) {
param->blend = blend_copytop;
}
if (s->all_expr && !param->expr_str) {
param->expr_str = av_strdup(s->all_expr);
if (!param->expr_str)