From 6e8ff6e5c232de4b8235626af31ab85345120a93 Mon Sep 17 00:00:00 2001 From: Miguel Freitas Date: Sat, 13 Jan 2007 21:19:52 +0000 Subject: * ffmpeg update to 51.28.0 * Workaround ffmpeg buggy codecs that don't release their DR1 frames. * Fix several segfaults and freezing problem with H264 streams that use a lot of reference frames (eg. 15) * Initial support to enable/disable ffmpeg codecs. Codecs may be disabled in groups by --disable-ffmpeg-uncommon-codecs/--disable-ffmpeg-popular-codecs Think of "uncommon" codecs what people would never want to play with their PDAs (they will save memory by removing them). Note: currently both uncommon/popular codecs are _build_ but disabled. that is, build system still need some improvements to really save memory. warning: non-autoconf guru playing with the build system, likely breakage. CVS patchset: 8499 CVS date: 2007/01/13 21:19:52 --- src/libffmpeg/libavcodec/ppc/mathops.h | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 src/libffmpeg/libavcodec/ppc/mathops.h (limited to 'src/libffmpeg/libavcodec/ppc/mathops.h') diff --git a/src/libffmpeg/libavcodec/ppc/mathops.h b/src/libffmpeg/libavcodec/ppc/mathops.h new file mode 100644 index 000000000..6af23f246 --- /dev/null +++ b/src/libffmpeg/libavcodec/ppc/mathops.h @@ -0,0 +1,33 @@ +/* + * simple math operations + * Copyright (c) 2001, 2002 Fabrice Bellard. + * Copyright (c) 2006 Michael Niedermayer et al + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#if defined(ARCH_POWERPC_405) +/* signed 16x16 -> 32 multiply add accumulate */ +# define MAC16(rt, ra, rb) \ + asm ("maclhw %0, %2, %3" : "=r" (rt) : "0" (rt), "r" (ra), "r" (rb)); + +/* signed 16x16 -> 32 multiply */ +# define MUL16(ra, rb) \ + ({ int __rt; + asm ("mullhw %0, %1, %2" : "=r" (__rt) : "r" (ra), "r" (rb)); + __rt; }) +#endif -- cgit v1.2.3