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author | James Dong <jdong@google.com> | 2011-05-31 18:53:46 -0700 |
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committer | James Dong <jdong@google.com> | 2011-06-02 12:32:46 -0700 |
commit | 0c1bc742181ded4930842b46e9507372f0b1b963 (patch) | |
tree | c952bfcb03ff7cce5e0f91ad7d25c67a2fdd39cb /media/libstagefright/codecs/on2/h264dec/omxdl/arm11/src/armCOMM_IDCTTable.c | |
parent | 92a746c3b18d035189f596ce32847bf26247aaca (diff) | |
download | frameworks_av-0c1bc742181ded4930842b46e9507372f0b1b963.zip frameworks_av-0c1bc742181ded4930842b46e9507372f0b1b963.tar.gz frameworks_av-0c1bc742181ded4930842b46e9507372f0b1b963.tar.bz2 |
Initial-checkin for ON2 Software AVC/H264 decoder
o when neon is present, the performance gain of On2 AVC software decoder
over PV software decoder is more than 30%.
o In addition, it fixes some known PV software decoder issues like missing
output frames
o allow both pv and on2 software avc to be available for easy comparision
o change output frames from 8 to 16
Change-Id: I567ad1842025ead7092f0c47e3513d6d9ca232dd
Diffstat (limited to 'media/libstagefright/codecs/on2/h264dec/omxdl/arm11/src/armCOMM_IDCTTable.c')
-rw-r--r-- | media/libstagefright/codecs/on2/h264dec/omxdl/arm11/src/armCOMM_IDCTTable.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/media/libstagefright/codecs/on2/h264dec/omxdl/arm11/src/armCOMM_IDCTTable.c b/media/libstagefright/codecs/on2/h264dec/omxdl/arm11/src/armCOMM_IDCTTable.c new file mode 100644 index 0000000..9e4679c --- /dev/null +++ b/media/libstagefright/codecs/on2/h264dec/omxdl/arm11/src/armCOMM_IDCTTable.c @@ -0,0 +1,60 @@ +/** + * + * File Name: armCOMM_IDCTTable.c + * OpenMAX DL: v1.0.2 + * Revision: 9641 + * Date: Thursday, February 7, 2008 + * + * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. + * + * + * + * File: armCOMM_IDCTTable.c + * Brief: Defines Tables used in IDCT computation + * + */ + +#include "armCOMM_IDCTTable.h" + + /* Table of s(u)*A(u)*A(v)/16 at Q15 + * s(u)=1.0 0 <= u <= 5 + * s(6)=2.0 + * s(7)=4.0 + * A(0) = 2*sqrt(2) + * A(u) = 4*cos(u*pi/16) for (u!=0) + */ + +__align(4) const OMX_U16 armCOMM_IDCTPreScale [64] = +{ + 0x4000, 0x58c5, 0x539f, 0x4b42, 0x4000, 0x3249, 0x4546, 0x46a1, + 0x58c5, 0x7b21, 0x73fc, 0x6862, 0x58c5, 0x45bf, 0x6016, 0x61f8, + 0x539f, 0x73fc, 0x6d41, 0x6254, 0x539f, 0x41b3, 0x5a82, 0x5c48, + 0x4b42, 0x6862, 0x6254, 0x587e, 0x4b42, 0x3b21, 0x5175, 0x530d, + 0x4000, 0x58c5, 0x539f, 0x4b42, 0x4000, 0x3249, 0x4546, 0x46a1, + 0x3249, 0x45bf, 0x41b3, 0x3b21, 0x3249, 0x2782, 0x366d, 0x377e, + 0x22a3, 0x300b, 0x2d41, 0x28ba, 0x22a3, 0x1b37, 0x257e, 0x263a, + 0x11a8, 0x187e, 0x1712, 0x14c3, 0x11a8, 0x0de0, 0x131d, 0x137d +}; + /* Above array armCOMM_IDCTPreScale, in Q23 format */ +const OMX_U32 armCOMM_IDCTPreScaleU32 [64] = +{ + 0x400000, 0x58c543, 0x539eba, 0x4b418c, 0x400000, 0x3248d4, 0x4545ea, 0x46a157, + 0x58c543, 0x7b20d8, 0x73fbfc, 0x686214, 0x58c543, 0x45bf1f, 0x6015a5, 0x61f78b, + 0x539eba, 0x73fbfc, 0x6d413d, 0x6253a6, 0x539eba, 0x41b328, 0x5a827a, 0x5c4869, + 0x4b418c, 0x686214, 0x6253a6, 0x587de3, 0x4b418c, 0x3b20d8, 0x5174e0, 0x530d69, + 0x400000, 0x58c543, 0x539eba, 0x4b418c, 0x400000, 0x3248d4, 0x4545ea, 0x46a157, + 0x3248d4, 0x45bf1f, 0x41b328, 0x3b20d8, 0x3248d4, 0x27821d, 0x366d72, 0x377e6b, + 0x22a2f5, 0x300ad3, 0x2d413d, 0x28ba70, 0x22a2f5, 0x1b36b9, 0x257d86, 0x26398d, + 0x11a856, 0x187de3, 0x17121a, 0x14c35a, 0x11a856, 0x0ddf9b, 0x131cc7, 0x137ca2 +}; + +const OMX_U16 armCOMM_IDCTCoef [4] = +{ + 0x5a82, /* InvSqrt2 */ + 0x30fc, /* SinPIBy8 */ + 0x7642, /* CosPIBy8 */ + 0x0000 +}; + + + |