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May 19 glibc 2.10.1glibc 2.10.1已经出来 http://udrepper.livejournal.com/20948.html 有个新特性和龙芯有点关系：Automatic use of optimized function 不过，glibc-ports-2.10.1还没有tag http://sourceware.org/ml/libc-ports/2009-05/msg00025.html 所以龙芯就暂时还用不上glibc-2.10.1 May 11 霸王别姬 不看霸王别姬，唱不好当爱已成往事…… 刚刚看了霸王别姬 确实是不错的片子 联想起之前看过的和你在一起 想不通陈凯歌怎么就拍出了无极这样一个烂片…… 不行，看完几个小时了，心情还是巨压抑…… 英文版的wikipedia条目比中文版的还要长…… http://en.wikipedia.org/wiki/Farewell_My_Concubine_(film) git format-patch --cover-letter --thread http://www.linux-mips.org/archives/linux-mips/2009-05/msg00052.html 经常看到别人发的一串补丁的第一个是对这一系列补丁的总体介绍，还包括文件改动的概况，就像上面这个。 觉得挺不错的。 而且觉得这应该是自动生成的，至少这个框架是自动生成的，最多自己往里面填点东西。可是不知道是那个参数。 刚刚花了点时间看了一下man git-format-patch，发现原来是--cover-letter。 另外还有一个--thread，这个的作用是让所有补丁变成cover letter的回复。 看看效果： http://www.nabble.com/-PATCH-0-3--Added-uncached-accelerated-CPU-feature-to23440834.html#a23440834 一个（系列）内核补丁的诞生 01:58 < r0bertz> Ralf: what about this patch http://dpaste.com/41858/ 01:58 < r0bertz> I just tested on fuloong 2f box 02:00 < Ralf> And willl crash on R4000, R4100, R4200, R4300, R4400, R4600, R5000 ... 02:00 < Ralf> They all don't have uncached accelerated. 02:00 < r0bertz> oh 02:01 < r0bertz> add some ifdef? 02:01 < Ralf> NACK :) 02:02 < r0bertz> :( then what to do? 02:02 < Ralf> Figure it out dynamically. Some systems support both CPUs that have and CPUs that don't have uncached accelerated. 02:02 < Ralf> As a general rule of thumb use #ifdef only if everything else fails. 02:02 < r0bertz> ok 02:02 < Fleedwood> | pgprot_uncached_acc; 02:03 < Fleedwood> which gets set by cpu detection code 02:03 < Fleedwood> and is simple the same a uncached for cpus not supporting it 02:03 < r0bertz> thanks 02:04 < Fleedwood> that would be my way of doing it 02:05 -!- Fleedwood [n=tsbogend@212.14.95.36] has quit ["Leaving"] 02:48 < r0bertz> Ralf: this one? http://dpaste.com/41885/ 02:49 < daney> cpu_has_uncached_accelerated should be treated like all the other cpu_has_* things in cpu-features.h 02:50 < daney> For many cases we want the compiler to be able to resolve it at compile time. 02:51 < Ralf> ep 02:52 < Ralf> Yep. 02:52 * Ralf is off for dinner 02:52 < r0bertz> indeed, that's better .... 03:25 < r0bertz> Ralf: http://dpaste.com/41904/ May 07 使用mplayer从影片中截取片段或者纯声音片段假设影片名为sampler.avi 要输出的片段文件名为test.avi 要输出的声音片段文件名为test.wav 开始时间是42分16秒 持续时间135秒 截取片段: mencoder -oac mp3lame -ovc lavc -ss 00:42:16 -endpos 135 -o test.avi sample.avi 截取声音片段： mplayer -ss 00:42:16 -endpos 135 -ao pcm:file=test.wav sample.avi 转成mp3： lame test.wav test.mp3 |
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