ffmpeg | branch: master | Martin Storsjö <mar...@martin.st> | Tue Mar 12 10:23:15 2024 +0200| [8339a45400458ab91f973ef671cbf99e38284e7e] | committer: Martin Storsjö
aarch64: Factorize code for CPU feature detection on Apple platforms Signed-off-by: Martin Storsjö <mar...@martin.st> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=8339a45400458ab91f973ef671cbf99e38284e7e --- libavutil/aarch64/cpu.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/libavutil/aarch64/cpu.c b/libavutil/aarch64/cpu.c index 7a05391343..196bdaf6b0 100644 --- a/libavutil/aarch64/cpu.c +++ b/libavutil/aarch64/cpu.c @@ -45,22 +45,23 @@ static int detect_flags(void) #elif defined(__APPLE__) && HAVE_SYSCTLBYNAME #include <sys/sysctl.h> +static int have_feature(const char *feature) { + uint32_t value = 0; + size_t size = sizeof(value); + if (!sysctlbyname(feature, &value, &size, NULL, 0)) + return value; + return 0; +} + static int detect_flags(void) { - uint32_t value = 0; - size_t size; int flags = 0; - size = sizeof(value); - if (!sysctlbyname("hw.optional.arm.FEAT_DotProd", &value, &size, NULL, 0)) { - if (value) - flags |= AV_CPU_FLAG_DOTPROD; - } - size = sizeof(value); - if (!sysctlbyname("hw.optional.arm.FEAT_I8MM", &value, &size, NULL, 0)) { - if (value) - flags |= AV_CPU_FLAG_I8MM; - } + if (have_feature("hw.optional.arm.FEAT_DotProd")) + flags |= AV_CPU_FLAG_DOTPROD; + if (have_feature("hw.optional.arm.FEAT_I8MM")) + flags |= AV_CPU_FLAG_I8MM; + return flags; } _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
