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ARM: small tweak of NEON H264 IDCT
Originally committed as revision 20697 to svn://svn.ffmpeg.org/ffmpeg/trunktags/v0.6
Måns Rullgård
16 years ago
1 changed files with 2 additions and 6 deletions
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+ 2
- 6
libavcodec/arm/h264idct_neon.S
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| @@ -24,11 +24,7 @@ | |||||
| .text | .text | ||||
| function ff_h264_idct_add_neon, export=1 | function ff_h264_idct_add_neon, export=1 | ||||
| mov r3, #(1<<5) | |||||
| vmov.i16 d16, #0 | |||||
| vmov.16 d16[0], r3 | |||||
| vld1.64 {d0-d3}, [r1,:128] | vld1.64 {d0-d3}, [r1,:128] | ||||
| vadd.i16 d0, d0, d16 | |||||
| vswp d1, d2 | vswp d1, d2 | ||||
| vadd.i16 d4, d0, d1 | vadd.i16 d4, d0, d1 | ||||
| @@ -58,8 +54,8 @@ function ff_h264_idct_add_neon, export=1 | |||||
| vadd.i16 q0, q2, q3 | vadd.i16 q0, q2, q3 | ||||
| vsub.i16 q1, q2, q3 | vsub.i16 q1, q2, q3 | ||||
| vshr.s16 q0, q0, #6 | |||||
| vshr.s16 q1, q1, #6 | |||||
| vrshr.s16 q0, q0, #6 | |||||
| vrshr.s16 q1, q1, #6 | |||||
| vaddw.u8 q0, q0, d18 | vaddw.u8 q0, q0, d18 | ||||
| vaddw.u8 q1, q1, d19 | vaddw.u8 q1, q1, d19 | ||||