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Port pred4x4_vertical_left_mmxext (H.264 intra prediction) from x264 (authors: 

Jason, Loren, Holger) to FFmpeg. Patch by Daniel Kang <daniel dot d dot kang
at gmail com>, as part of Google's GCI 2010.

Originally committed as revision 26155 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Daniel Kang 2010-12-29 21:35:34 +00:00 committed by Ronald S. Bultje
parent e8d98764cc
commit 92f441ae86
2 changed files with 28 additions and 0 deletions
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25
libavcodec/x86/h264_intrapred.asm
View File

@ -2536,4 +2536,29 @@ cglobal pred4x4_down_left_mmxext, 3,3
psrlq m0, 8
movd [r1+r2*2], m0
RET
;-----------------------------------------------------------------------------
; void pred4x4_vertical_left_mmxext(uint8_t *src, const uint8_t *topright, int stride)
;-----------------------------------------------------------------------------
INIT_MMX
cglobal pred4x4_vertical_left_mmxext, 3,3
sub r0, r2
movq m1, [r0]
punpckldq m1, [r1]
movq m3, m1
movq m2, m1
psrlq m3, 8
psrlq m2, 16
movq m4, m3
pavgb m4, m1
PRED4x4_LOWPASS m0, m1, m2, m3, m5
lea r1, [r0+r2*2]
movh [r0+r2*1], m4
movh [r0+r2*2], m0
psrlq m4, 8
psrlq m0, 8
movh [r1+r2*1], m4
movh [r1+r2*2], m0
RET
%endif

3
libavcodec/x86/h264_intrapred_init.c
View File

@ -84,6 +84,7 @@ void ff_pred8x8l_horizontal_down_sse2(uint8_t *src, int has_topleft, int has_top
void ff_pred8x8l_horizontal_down_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_vertical_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);
void ff_pred4x4_tm_vp8_mmxext (uint8_t *src, const uint8_t *topright, int stride);
void ff_pred4x4_tm_vp8_ssse3 (uint8_t *src, const uint8_t *topright, int stride);
@ -133,6 +134,8 @@ void ff_h264_pred_init_x86(H264PredContext *h, int codec_id)
#if CONFIG_GPL
if (codec_id == CODEC_ID_VP8 || codec_id == CODEC_ID_H264)
h->pred4x4 [DIAG_DOWN_LEFT_PRED ] = ff_pred4x4_down_left_mmxext;
if (codec_id == CODEC_ID_SVQ3 || codec_id == CODEC_ID_H264)
h->pred4x4 [VERT_LEFT_PRED ] = ff_pred4x4_vertical_left_mmxext;
if (codec_id == CODEC_ID_SVQ3 || codec_id == CODEC_ID_H264) {
h->pred8x8 [TOP_DC_PRED8x8 ] = ff_pred8x8_top_dc_mmxext;
h->pred8x8 [DC_PRED8x8 ] = ff_pred8x8_dc_mmxext;