FFmpeg: libswresample/x86/resample

FFmpeg

[フレーム]

Macros | Functions | Variables

resample_mmx.h File Reference

#include "libavutil/x86/asm.h"
#include "libavutil/cpu.h"
#include "libswresample/swresample_internal.h"

Go to the source code of this file.

Macros

#define COMMON_CORE_INT16_MMX2

#define COMMON_CORE_INT16_SSSE3

Functions

int swri_resample_int16_mmx2 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx)

int swri_resample_int16_ssse3 (struct ResampleContext *c, int16_t *dst, const int16_t *src, int *consumed, int src_size, int dst_size, int update_ctx)

Variables

const uint64_t ff_resample_int16_rounder [2] = { 0x0000000000004000ULL, 0x0000000000000000ULL}

Macro Definition Documentation

#define COMMON_CORE_INT16_MMX2

Value:

x86_reg len= -2*c->filter_length;\

__asm__ volatile(\

"movq "MANGLE(ff_resample_int16_rounder)", %%mm0 \n\t"\

"1: \n\t"\

"movq (%1, %0), %%mm1 \n\t"\

"pmaddwd (%2, %0), %%mm1 \n\t"\

"paddd %%mm1, %%mm0 \n\t"\

"add 8,ドル %0 \n\t"\

" js 1b \n\t"\

"pshufw 0ドルx0E, %%mm0, %%mm1 \n\t"\

"paddd %%mm1, %%mm0 \n\t"\

"psrad 15,ドル %%mm0 \n\t"\

"packssdw %%mm0, %%mm0 \n\t"\

"movd %%mm0, (%3) \n\t"\

: "+r" (len)\

: "r" (((uint8_t*)(src+sample_index))-len),\

"r" (((uint8_t*)filter)-len),\

"r" (dst+dst_index)\

);

Definition at line 30 of file resample_mmx.h.

#define COMMON_CORE_INT16_SSSE3

Value:

x86_reg len= -2*c->filter_length;\

__asm__ volatile(\

"movdqa "MANGLE(ff_resample_int16_rounder)", %%xmm0 \n\t"\

"1: \n\t"\

"movdqu (%1, %0), %%xmm1 \n\t"\

"pmaddwd (%2, %0), %%xmm1 \n\t"\

"paddd %%xmm1, %%xmm0 \n\t"\

"add 16,ドル %0 \n\t"\

" js 1b \n\t"\

"phaddd %%xmm0, %%xmm0 \n\t"\

"psrad 15,ドル %%xmm0 \n\t"\

"packssdw %%xmm0, %%xmm0 \n\t"\

"movd %%xmm0, (%3) \n\t"\

: "+r" (len)\

: "r" (((uint8_t*)(src+sample_index))-len),\

"r" (((uint8_t*)filter)-len),\

"r" (dst+dst_index)\

);

Definition at line 51 of file resample_mmx.h.

Function Documentation

int swri_resample_int16_mmx2 ( struct ResampleContext * c,

int16_t * dst,

const int16_t * src,

int * consumed,

int src_size,

int dst_size,

int update_ctx

)

Referenced by multiple_resample().

int swri_resample_int16_ssse3 ( struct ResampleContext * c,

int16_t * dst,

const int16_t * src,

int * consumed,

int src_size,

int dst_size,

int update_ctx

)

Referenced by multiple_resample().

Variable Documentation

const uint64_t ff_resample_int16_rounder[2] = { 0x0000000000004000ULL, 0x0000000000000000ULL}

Definition at line 28 of file resample_mmx.h.

Generated on Sat Jan 25 2014 19:52:23 for FFmpeg by doxygen 1.8.2