From 06f94149c61fd6beff6fcd0fd7ccc34b77c948dc Mon Sep 17 00:00:00 2001 From: Muhammad Faiz Date: Thu, 24 Nov 2016 15:02:07 +0700 Subject: swresample/resample: optimize exact_rational=on:linear_interp=on case separate dsp.resample to dsp.resample_common and dsp.resample_linear and choose to call faster resample_common even when linear_interp=on when c->frac and c->dst_incr_mod are both zero speed up resampling when exact_rational and linear_interp are both enabled because exact_rational force c->frac and c->dst_incr_mod to be zero when soft compensation does not happen benchmark on exact_rational=on:linear_interp=on old new real 8.432s 5.097s user 7.679s 4.989s sys 0.125s 0.107s Reviewed-by: Michael Niedermayer Signed-off-by: Muhammad Faiz --- libswresample/arm/resample_init.c | 6 ++---- libswresample/resample.c | 7 ++++++- libswresample/resample.h | 6 ++++-- libswresample/resample_dsp.c | 12 ++++++++---- libswresample/x86/resample_init.c | 32 ++++++++++++++++---------------- 5 files changed, 36 insertions(+), 27 deletions(-) diff --git a/libswresample/arm/resample_init.c b/libswresample/arm/resample_init.c index 003fafd29b..e334a27b89 100644 --- a/libswresample/arm/resample_init.c +++ b/libswresample/arm/resample_init.c @@ -111,12 +111,10 @@ av_cold void swri_resample_dsp_arm_init(ResampleContext *c) switch(c->format) { case AV_SAMPLE_FMT_FLTP: - if (!c->linear) - c->dsp.resample = ff_resample_common_float_neon; + c->dsp.resample_common = ff_resample_common_float_neon; break; case AV_SAMPLE_FMT_S16P: - if (!c->linear) - c->dsp.resample = ff_resample_common_s16_neon; + c->dsp.resample_common = ff_resample_common_s16_neon; break; } } diff --git a/libswresample/resample.c b/libswresample/resample.c index 8635bf1bed..e65a57a877 100644 --- a/libswresample/resample.c +++ b/libswresample/resample.c @@ -496,7 +496,12 @@ static int swri_resample(ResampleContext *c, dst_size = FFMIN(dst_size, delta_n); if (dst_size > 0) { - *consumed = c->dsp.resample(c, dst, src, dst_size, update_ctx); + /* resample_linear and resample_common should have same behavior + * when frac and dst_incr_mod are zero */ + if (c->linear && (c->frac || c->dst_incr_mod)) + *consumed = c->dsp.resample_linear(c, dst, src, dst_size, update_ctx); + else + *consumed = c->dsp.resample_common(c, dst, src, dst_size, update_ctx); } else { *consumed = 0; } diff --git a/libswresample/resample.h b/libswresample/resample.h index 7fe9b97f7f..946f5cc8e3 100644 --- a/libswresample/resample.h +++ b/libswresample/resample.h @@ -53,8 +53,10 @@ typedef struct ResampleContext { struct { void (*resample_one)(void *dst, const void *src, int n, int64_t index, int64_t incr); - int (*resample)(struct ResampleContext *c, void *dst, - const void *src, int n, int update_ctx); + int (*resample_common)(struct ResampleContext *c, void *dst, + const void *src, int n, int update_ctx); + int (*resample_linear)(struct ResampleContext *c, void *dst, + const void *src, int n, int update_ctx); } dsp; } ResampleContext; diff --git a/libswresample/resample_dsp.c b/libswresample/resample_dsp.c index 41369f3f8a..6ffbb87766 100644 --- a/libswresample/resample_dsp.c +++ b/libswresample/resample_dsp.c @@ -48,19 +48,23 @@ void swri_resample_dsp_init(ResampleContext *c) switch(c->format){ case AV_SAMPLE_FMT_S16P: c->dsp.resample_one = resample_one_int16; - c->dsp.resample = c->linear ? resample_linear_int16 : resample_common_int16; + c->dsp.resample_common = resample_common_int16; + c->dsp.resample_linear = resample_linear_int16; break; case AV_SAMPLE_FMT_S32P: c->dsp.resample_one = resample_one_int32; - c->dsp.resample = c->linear ? resample_linear_int32 : resample_common_int32; + c->dsp.resample_common = resample_common_int32; + c->dsp.resample_linear = resample_linear_int32; break; case AV_SAMPLE_FMT_FLTP: c->dsp.resample_one = resample_one_float; - c->dsp.resample = c->linear ? resample_linear_float : resample_common_float; + c->dsp.resample_common = resample_common_float; + c->dsp.resample_linear = resample_linear_float; break; case AV_SAMPLE_FMT_DBLP: c->dsp.resample_one = resample_one_double; - c->dsp.resample = c->linear ? resample_linear_double : resample_common_double; + c->dsp.resample_common = resample_common_double; + c->dsp.resample_linear = resample_linear_double; break; } diff --git a/libswresample/x86/resample_init.c b/libswresample/x86/resample_init.c index 9d7d5cf89e..e515762b98 100644 --- a/libswresample/x86/resample_init.c +++ b/libswresample/x86/resample_init.c @@ -50,40 +50,40 @@ av_cold void swri_resample_dsp_x86_init(ResampleContext *c) switch(c->format){ case AV_SAMPLE_FMT_S16P: if (ARCH_X86_32 && EXTERNAL_MMXEXT(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_int16_mmxext - : ff_resample_common_int16_mmxext; + c->dsp.resample_linear = ff_resample_linear_int16_mmxext; + c->dsp.resample_common = ff_resample_common_int16_mmxext; } if (EXTERNAL_SSE2(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_int16_sse2 - : ff_resample_common_int16_sse2; + c->dsp.resample_linear = ff_resample_linear_int16_sse2; + c->dsp.resample_common = ff_resample_common_int16_sse2; } if (EXTERNAL_XOP(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_int16_xop - : ff_resample_common_int16_xop; + c->dsp.resample_linear = ff_resample_linear_int16_xop; + c->dsp.resample_common = ff_resample_common_int16_xop; } break; case AV_SAMPLE_FMT_FLTP: if (EXTERNAL_SSE(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_float_sse - : ff_resample_common_float_sse; + c->dsp.resample_linear = ff_resample_linear_float_sse; + c->dsp.resample_common = ff_resample_common_float_sse; } if (EXTERNAL_AVX_FAST(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_float_avx - : ff_resample_common_float_avx; + c->dsp.resample_linear = ff_resample_linear_float_avx; + c->dsp.resample_common = ff_resample_common_float_avx; } if (EXTERNAL_FMA3_FAST(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_float_fma3 - : ff_resample_common_float_fma3; + c->dsp.resample_linear = ff_resample_linear_float_fma3; + c->dsp.resample_common = ff_resample_common_float_fma3; } if (EXTERNAL_FMA4(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_float_fma4 - : ff_resample_common_float_fma4; + c->dsp.resample_linear = ff_resample_linear_float_fma4; + c->dsp.resample_common = ff_resample_common_float_fma4; } break; case AV_SAMPLE_FMT_DBLP: if (EXTERNAL_SSE2(mm_flags)) { - c->dsp.resample = c->linear ? ff_resample_linear_double_sse2 - : ff_resample_common_double_sse2; + c->dsp.resample_linear = ff_resample_linear_double_sse2; + c->dsp.resample_common = ff_resample_common_double_sse2; } break; } -- cgit v1.2.3