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| author | Måns Rullgård <mans@mansr.com> | 2008-12-15 22:12:54 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2008-12-15 22:12:54 +0000 |
| commit | 1bf98d19d57b082387a4e939f90c385e28511fc6 (patch) | |
| tree | 8127b2bb4609f9cf4bff78383fec915e06c69a3e /libavcodec | |
| parent | c598cf25f4bdeca0616018399a38b0087f63f634 (diff) | |
| download | ffmpeg-1bf98d19d57b082387a4e939f90c385e28511fc6.tar.gz | |
ARM: NEON optimised h264_idct_dc_add
Originally committed as revision 16151 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/armv4l/dsputil_neon.c | 2 | ||||
| -rw-r--r-- | libavcodec/armv4l/h264idct_neon.S | 19 |
2 files changed, 21 insertions, 0 deletions
diff --git a/libavcodec/armv4l/dsputil_neon.c b/libavcodec/armv4l/dsputil_neon.c index 4fe5d0f4d3..5204c50e37 100644 --- a/libavcodec/armv4l/dsputil_neon.c +++ b/libavcodec/armv4l/dsputil_neon.c @@ -93,6 +93,7 @@ void ff_h264_h_loop_filter_chroma_neon(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0); void ff_h264_idct_add_neon(uint8_t *dst, DCTELEM *block, int stride); +void ff_h264_idct_dc_add_neon(uint8_t *dst, DCTELEM *block, int stride); void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx) { @@ -164,4 +165,5 @@ void ff_dsputil_init_neon(DSPContext *c, AVCodecContext *avctx) c->h264_h_loop_filter_chroma = ff_h264_h_loop_filter_chroma_neon; c->h264_idct_add = ff_h264_idct_add_neon; + c->h264_idct_dc_add = ff_h264_idct_dc_add_neon; } diff --git a/libavcodec/armv4l/h264idct_neon.S b/libavcodec/armv4l/h264idct_neon.S index 3484ca9610..b7ef2f4519 100644 --- a/libavcodec/armv4l/h264idct_neon.S +++ b/libavcodec/armv4l/h264idct_neon.S @@ -75,3 +75,22 @@ function ff_h264_idct_add_neon, export=1 bx lr .endfunc + +function ff_h264_idct_dc_add_neon, export=1 + vld1.16 {d2[],d3[]}, [r1,:16] + vrshr.s16 q1, q1, #6 + vld1.32 {d0[0]}, [r0,:32], r2 + vld1.32 {d0[1]}, [r0,:32], r2 + vaddw.u8 q2, q1, d0 + vld1.32 {d1[0]}, [r0,:32], r2 + vld1.32 {d1[1]}, [r0,:32], r2 + vaddw.u8 q1, q1, d1 + vqmovun.s16 d0, q2 + vqmovun.s16 d1, q1 + sub r0, r0, r2, lsl #2 + vst1.32 {d0[0]}, [r0,:32], r2 + vst1.32 {d0[1]}, [r0,:32], r2 + vst1.32 {d1[0]}, [r0,:32], r2 + vst1.32 {d1[1]}, [r0,:32], r2 + bx lr + .endfunc |