virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity

avcodec/h264: add sse2 versions of previous idct functions

Browse Source 
Kaby Lake Pentium:
 - ff_h264_idct_add_8_sse2:    ~1.18x faster than mmxext
 - ff_h264_idct_dc_add_8_sse2: ~1.07x faster than mmxext
This commit is contained in:
James Darnley 2017-04-05 21:07:47 +02:00
parent 27460dfebc
commit 7aa90b4e94
2 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
libavcodec/x86/h264_idct.asm
View File

@ -1140,8 +1140,6 @@ IDCT_DC_DEQUANT 0
INIT_MMX sse2
IDCT_DC_DEQUANT 7
INIT_XMM avx
; %unmacro STORE_DIFFx2 8 ; remove macro from x86util.asm but yasm doesn't have this yet
%macro STORE_DIFFx2 8 ; add1, add2, reg1, reg2, zero, shift, source, stride
movd %3, [%7]
@ -1170,6 +1168,10 @@ INIT_XMM avx
packuswb m1, m1
%endmacro
%macro IDCT_XMM 1
INIT_XMM %1
cglobal h264_idct_add_8, 3, 3, 8, dst_, block_, stride_
movsxdifnidn stride_q, stride_d
IDCT4_ADD dst_q, block_q, stride_q
@ -1182,3 +1184,8 @@ cglobal h264_idct_dc_add_8, 3, 4, 6, dst_, block_, stride_
DC_ADD_INIT r3
DC_ADD_MMXEXT_OP movd, dst_q, stride_q, r3
RET
%endmacro
IDCT_XMM sse2
IDCT_XMM avx

5
libavcodec/x86/h264dsp_init.c
View File

@ -32,9 +32,11 @@ void ff_h264_idct ## NUM ## _add_ ## DEPTH ## _ ## OPT(uint8_t *dst, \
int stride);
IDCT_ADD_FUNC(, 8, mmx)
IDCT_ADD_FUNC(, 8, sse2)
IDCT_ADD_FUNC(, 8, avx)
IDCT_ADD_FUNC(, 10, sse2)
IDCT_ADD_FUNC(_dc, 8, mmxext)
IDCT_ADD_FUNC(_dc, 8, sse2)
IDCT_ADD_FUNC(_dc, 8, avx)
IDCT_ADD_FUNC(_dc, 10, mmxext)
IDCT_ADD_FUNC(8_dc, 8, mmxext)
@ -316,6 +318,9 @@ av_cold void ff_h264dsp_init_x86(H264DSPContext *c, const int bit_depth,
c->h264_h_loop_filter_chroma = ff_deblock_h_chroma422_8_sse2;
c->h264_h_loop_filter_chroma_intra = ff_deblock_h_chroma422_intra_8_sse2;
}
c->h264_idct_add = ff_h264_idct_add_8_sse2;
c->h264_idct_dc_add = ff_h264_idct_dc_add_8_sse2;
}
if (EXTERNAL_SSSE3(cpu_flags)) {
c->biweight_h264_pixels_tab[0] = ff_h264_biweight_16_ssse3;