Necessary for systems that don't align by default to 16 bytes, required by some
SSE instructions.
Requires GCC >= 4.2.
Based on patch by Gaël Chardon.

Originally committed as revision 10106 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10023 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9820 to svn://svn.ffmpeg.org/ffmpeg/trunk

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are not compiled in.

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Originally committed as revision 9315 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Albert Lee, trisk+xine acm.jhu edu

Originally committed as revision 9307 to svn://svn.ffmpeg.org/ffmpeg/trunk

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sum_abs_dctelem_* alone:
core2: c=186 mmx2=39 sse2=21 ssse3=13 (cycles)
k8: c=163 mmx2=33 sse2=31
p4: c=370 mmx2=60 sse2=60
 dct_sad including sum_abs_dctelem_*:
core2: c=405 mmx2=258 sse2=240 ssse3=232
k8: c=624 mmx2=394 sse2=392
p4: c=849 mmx2=556 sse2=556

Originally committed as revision 9001 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 7249 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Brian Foley % bfoley A compsoc P nuigalway P ie %
Original thread:
Date: Nov 26, 2006 6:44 PM
Subject: Re: [Ffmpeg-devel] [PATCH] put_mpeg4_qpel16_h_lowpass altivec, take 2

Originally committed as revision 7172 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7044 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 7043 to svn://svn.ffmpeg.org/ffmpeg/trunk

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and fix GPL/LGPL version mismatches.

Originally committed as revision 6577 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6412 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Michael Benjamin, neuroptik gmail com

Originally committed as revision 6282 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6153 to svn://svn.ffmpeg.org/ffmpeg/trunk

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Originally committed as revision 6150 to svn://svn.ffmpeg.org/ffmpeg/trunk

Existing DSPUtil functions cause chroma artifacts on some files.

Originally committed as revision 6139 to svn://svn.ffmpeg.org/ffmpeg/trunk

2-3% faster h264.

Originally committed as revision 6113 to svn://svn.ffmpeg.org/ffmpeg/trunk

15% faster vorbis.

Originally committed as revision 5975 to svn://svn.ffmpeg.org/ffmpeg/trunk

9% faster vorbis (on a K8).

Originally committed as revision 5898 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5862 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Emiliano Parasassi, millallo --at-- gmail --dot-- com

Originally committed as revision 5660 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5590 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Diego 'Flameeyes' Petteno flameeyes AH gentoo PP org
Original thread:
Date: Jun 30, 2006 1:16 AM
Subject: [Ffmpeg-devel] [PATCH] Disable w53 and w97 cmp methods when snow encoder is disabled

Originally committed as revision 5558 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 5427 to svn://svn.ffmpeg.org/ffmpeg/trunk