Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

Port pred8x8l_top_dc_mmxext/ssse3 (H.264 intra prediction) from x264 to FFmpeg.

Browse Source 
Original authors: Holger Lubitz <holger lubitz org>, Jason Garrett-Glaser
<darkshikari gmail com> (approves LGPL relicensing for this code) and Loren
Merritt <lorenm at u dot washington dot edu> (approves LGPL relicensing for
this code). Patch by Daniel Kang <daniel dot d dot kang at gmail com>, as
part of Google's GCI 2010.

Originally committed as revision 26137 to svn://svn.ffmpeg.org/ffmpeg/trunk
oldabi
Daniel Kang 14 years ago committed by Ronald S. Bultje
parent 54a959e483
commit 2e93fd4b5e
2 changed files with 68 additions and 0 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 60
      libavcodec/x86/h264_intrapred.asm
  2. 8
      libavcodec/x86/h264_intrapred_init.c

60
libavcodec/x86/h264_intrapred.asm
Unescape View File

@ -23,6 +23,7 @@
;******************************************************************************
%include "x86inc.asm"
%include "x86util.asm"
SECTION_RODATA
@ -40,6 +41,7 @@ SECTION .text
cextern pb_1
cextern pb_3
cextern pw_4
cextern pw_5
cextern pw_16
cextern pw_17
@ -1078,6 +1080,64 @@ cglobal pred8x8_tm_vp8_ssse3, 2,3,6
pavgb %1, %2
%endmacro
;-----------------------------------------------------------------------------
; void pred8x8l_top_dc(uint8_t *src, int has_topleft, int has_topright, int stride)
;-----------------------------------------------------------------------------
%ifdef CONFIG_GPL
%macro PRED8x8L_TOP_DC 1
cglobal pred8x8l_top_dc_%1, 4,4
sub r0, r3
pxor mm7, mm7
movq mm0, [r0-8]
movq mm3, [r0]
movq mm1, [r0+8]
movq mm2, mm3
movq mm4, mm3
PALIGNR mm2, mm0, 7, mm0
PALIGNR mm1, mm4, 1, mm4
test r1, r1 ; top_left
jz .fix_lt_2
test r2, r2 ; top_right
jz .fix_tr_1
jmp .body
.fix_lt_2:
movq mm5, mm3
pxor mm5, mm2
psllq mm5, 56
psrlq mm5, 56
pxor mm2, mm5
test r2, r2 ; top_right
jnz .body
.fix_tr_1:
movq mm5, mm3
pxor mm5, mm1
psrlq mm5, 56
psllq mm5, 56
pxor mm1, mm5
.body
PRED4x4_LOWPASS mm0, mm2, mm1, mm3, mm5
psadbw mm7, mm0
paddw mm7, [pw_4]
psrlw mm7, 3
pshufw mm7, mm7, 0
packuswb mm7, mm7
%rep 3
movq [r0+r3*1], mm7
movq [r0+r3*2], mm7
lea r0, [r0+r3*2]
%endrep
movq [r0+r3*1], mm7
movq [r0+r3*2], mm7
RET
%endmacro
INIT_MMX
%define PALIGNR PALIGNR_MMX
PRED8x8L_TOP_DC mmxext
%define PALIGNR PALIGNR_SSSE3
PRED8x8L_TOP_DC ssse3
%endif
;-----------------------------------------------------------------------------
; void pred4x4_dc_mmxext(uint8_t *src, const uint8_t *topright, int stride)
;-----------------------------------------------------------------------------

8
libavcodec/x86/h264_intrapred_init.c
Unescape View File

@ -59,6 +59,8 @@ void ff_pred8x8_tm_vp8_mmx (uint8_t *src, int stride);
void ff_pred8x8_tm_vp8_mmxext (uint8_t *src, int stride);
void ff_pred8x8_tm_vp8_sse2 (uint8_t *src, int stride);
void ff_pred8x8_tm_vp8_ssse3 (uint8_t *src, int stride);
void ff_pred8x8l_top_dc_mmxext (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred8x8l_top_dc_ssse3 (uint8_t *src, int has_topleft, int has_topright, int stride);
void ff_pred4x4_dc_mmxext (uint8_t *src, const uint8_t *topright, int stride);
void ff_pred4x4_down_left_mmxext (uint8_t *src, const uint8_t *topright, int stride);
void ff_pred4x4_tm_vp8_mmx (uint8_t *src, const uint8_t *topright, int stride);
@ -96,6 +98,9 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_mmxext;
h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_mmxext;
h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_mmxext;
#if CONFIG_GPL
h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_mmxext;
#endif
h->pred4x4 [DC_PRED ] = ff_pred4x4_dc_mmxext;
#if CONFIG_GPL
if (codec_id == CODEC_ID_VP8 || codec_id == CODEC_ID_H264)
@ -148,6 +153,9 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
h->pred16x16[HOR_PRED8x8 ] = ff_pred16x16_horizontal_ssse3;
h->pred16x16[DC_PRED8x8 ] = ff_pred16x16_dc_ssse3;
h->pred8x8 [HOR_PRED8x8 ] = ff_pred8x8_horizontal_ssse3;
#if CONFIG_GPL
h->pred8x8l [TOP_DC_PRED ] = ff_pred8x8l_top_dc_ssse3;
#endif
if (codec_id == CODEC_ID_VP8) {
h->pred8x8 [PLANE_PRED8x8] = ff_pred8x8_tm_vp8_ssse3;
h->pred4x4 [TM_VP8_PRED ] = ff_pred4x4_tm_vp8_ssse3;

Write Preview
Loading…
Cancel
Save