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72153419b5
* qatar/master: (33 commits) rtpdec_qdm2: Don't try to parse data packet if no configuration is received ac3enc: put the counting of stereo rematrixing bits in the same place to make the code easier to understand. ac3enc: clean up count_frame_bits() and count_frame_bits_fixed() mpegvideo: make FF_DEBUG_DCT_COEFF output coeffs via av_log() instead of just via AVFrame. srtdec: make sure we don't write past the end of buffer wmaenc: improve channel count and bitrate error handling in encode_init() matroskaenc: make sure we don't produce invalid file with no codec ID matroskadec: check that pointers were initialized before accessing them lavf: fix function name in compute_pkt_fields2 av_dlog message lavf: fix av_find_best_stream when providing a wanted stream. lavf: fix av_find_best_stream when decoder_ret is given and using a related stream. ffmpeg: factorize quality calculation tiff: add support for SamplesPerPixel tag in tiff_decode_tag() tiff: Prefer enum TiffCompr over int for TiffContext.compr. mov: Support edit list atom version 1. configure: Enable libpostproc automatically if GPL code is enabled. Cosmetics: fix prototypes in oggdec oggdec: fix memleak with continuous streams. matroskaenc: add missing new line in av_log() call dnxhdenc: add AVClass in private context. ... swscale changes largely rewritten by me or replaced by baptsites due to lots of bugs in ronalds code. Above code is also just in case its not obvios to a large extended duplicates that where cherry picked from ffmpeg. Conflicts: configure ffmpeg.c libavformat/matroskaenc.c libavutil/pixfmt.h libswscale/ppc/swscale_template.c libswscale/swscale.c libswscale/swscale_template.c libswscale/utils.c libswscale/x86/swscale_template.c tests/fate/h264.mak tests/ref/lavfi/pixdesc_le tests/ref/lavfi/pixfmts_copy_le tests/ref/lavfi/pixfmts_null_le tests/ref/lavfi/pixfmts_scale_le tests/ref/lavfi/pixfmts_vflip_le Merged-by: Michael Niedermayer <michaelni@gmx.at>
84 lines
2.5 KiB
C
84 lines
2.5 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifdef __APPLE__
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#include <sys/sysctl.h>
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#elif defined(__OpenBSD__)
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#include <sys/param.h>
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#include <sys/sysctl.h>
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#include <machine/cpu.h>
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#elif defined(__AMIGAOS4__)
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#include <exec/exec.h>
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#include <interfaces/exec.h>
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#include <proto/exec.h>
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#endif /* __APPLE__ */
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#include "libavutil/cpu.h"
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#include "config.h"
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/**
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* This function MAY rely on signal() or fork() in order to make sure AltiVec
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* is present.
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*/
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int ff_get_cpu_flags_ppc(void)
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{
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#if HAVE_ALTIVEC
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#ifdef __AMIGAOS4__
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ULONG result = 0;
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extern struct ExecIFace *IExec;
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IExec->GetCPUInfoTags(GCIT_VectorUnit, &result, TAG_DONE);
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if (result == VECTORTYPE_ALTIVEC)
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return AV_CPU_FLAG_ALTIVEC;
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return 0;
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#elif defined(__APPLE__) || defined(__OpenBSD__)
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#ifdef __OpenBSD__
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int sels[2] = {CTL_MACHDEP, CPU_ALTIVEC};
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#else
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int sels[2] = {CTL_HW, HW_VECTORUNIT};
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#endif
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int has_vu = 0;
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size_t len = sizeof(has_vu);
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int err;
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err = sysctl(sels, 2, &has_vu, &len, NULL, 0);
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if (err == 0)
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return has_vu ? AV_CPU_FLAG_ALTIVEC : 0;
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return 0;
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#elif CONFIG_RUNTIME_CPUDETECT
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int proc_ver;
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// Support of mfspr PVR emulation added in Linux 2.6.17.
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__asm__ volatile("mfspr %0, 287" : "=r" (proc_ver));
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proc_ver >>= 16;
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if (proc_ver & 0x8000 ||
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proc_ver == 0x000c ||
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proc_ver == 0x0039 || proc_ver == 0x003c ||
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proc_ver == 0x0044 || proc_ver == 0x0045 ||
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proc_ver == 0x0070)
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return AV_CPU_FLAG_ALTIVEC;
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return 0;
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#else
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// Since we were compiled for AltiVec, just assume we have it
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// until someone comes up with a proper way (not involving signal hacks).
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return AV_CPU_FLAG_ALTIVEC;
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#endif /* __AMIGAOS4__ */
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#endif /* HAVE_ALTIVEC */
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return 0;
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}
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