[flac-dev] flac-dev Digest, Vol 116, Issue 19

[Marcus Johnson]

Why are you using such an old SDK? Your Macbook came with at least Mountain
Lion, right? I have a Retina Macbook mid 2012, and it came with ML...


On Fri, Jul 25, 2014 at 3:00 PM, <flac-dev-request at xiph.org> wrote:

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> Today's Topics:
>
>    1. 1.21 vs 1.3 encoding speed (Scott Brown)
>    2. Re: 1.21 vs 1.3 encoding speed (lvqcl)
>    3. Re: 1.21 vs 1.3 encoding speed (Scott Brown)
>
>
> ---------- Forwarded message ----------
> From: Scott Brown <scottcbrown at gmail.com>
> To: flac-dev at xiph.org
> Cc:
> Date: Fri, 25 Jul 2014 07:39:59 -0400
> Subject: [flac-dev] 1.21 vs 1.3 encoding speed
> 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
>
>
> ---------- Forwarded message ----------
> From: lvqcl <lvqcl.mail at gmail.com>
> To: flac-dev at xiph.org
> Cc:
> Date: Fri, 25 Jul 2014 20:54:54 +0400
> Subject: Re: [flac-dev] 1.21 vs 1.3 encoding speed
> 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...)
>
>
>
> ---------- Forwarded message ----------
> From: Scott Brown <scottcbrown at gmail.com>
> To: lvqcl <lvqcl.mail at gmail.com>
> Cc: flac-dev at xiph.org
> Date: Fri, 25 Jul 2014 13:32:50 -0400
> Subject: Re: [flac-dev] 1.21 vs 1.3 encoding speed
> 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
>>
>
>
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