Hello, I'm on a Mac and I'm noticing that encoding via the flac command line is significantly slower with version 1.3.0 than 1.2.1. I'm encoding a 24/96 file to flac, both from wav and aiff and both formats are showing the same speed decrease when using 1.3.0. To give an idea of the speed decrease, encoding at flac level 8: 24/96 wav file 1.21: 61.05 seconds. ratio=0.690 1.3: 222.48 seconds. ratio=0.690 smaller 16/44.1 wav file 1.21: 14.28 seconds. ratio=0.487 1.3: 51.21 seconds. ratio=0.487 Also, 1.2.1 will not encode an aiff-c file, but 1.3.0 will. Is this change documented anywhere? Thanks, Scott -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac-dev/attachments/20140725/310ecede/attachment.htm
Scott Brown wrote:> I'm on a Mac and I'm noticing that encoding via the flac command line is > significantly slower with version 1.3.0 than 1.2.1. I'm encoding a 24/96 > file to flac, both from wav and aiff and both formats are showing the same > speed decrease when using 1.3.0.a) What CPU do you have? Intel or PowerPC? b) There are no official binaries for 1.3.0. How did you obtain your flac 1.3.0 encoder? (I suspect that your CPU was made by Intel and your encoder was built without NASM...)
a. Intel 2.8 Ghz Core I7 (dual core, I7-4558U) in late 2013 Macbook Pro with Retina Display b. I compiled it the same way I compiled 1.2.1: ./configure -enable-static -disable-shared CFLAGS=" -isysroot /Developer/SDKs/MacOSX10.6.sdk -mmacosx-version-min=10.6" make Am i doing something wrong? Thanks, Scott On Fri, Jul 25, 2014 at 12:54 PM, lvqcl <lvqcl.mail at gmail.com> wrote:> Scott Brown wrote: > > > I'm on a Mac and I'm noticing that encoding via the flac command line is > > significantly slower with version 1.3.0 than 1.2.1. I'm encoding a 24/96 > > file to flac, both from wav and aiff and both formats are showing the > same > > speed decrease when using 1.3.0. > > a) What CPU do you have? Intel or PowerPC? > > b) There are no official binaries for 1.3.0. How did you obtain > your flac 1.3.0 encoder? > > > > (I suspect that your CPU was made by Intel and your encoder was built > without NASM...) > _______________________________________________ > flac-dev mailing list > flac-dev at xiph.org > http://lists.xiph.org/mailman/listinfo/flac-dev >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.xiph.org/pipermail/flac-dev/attachments/20140725/e3700d7e/attachment.htm