Re: [tuna-general] [金枪鱼之夜] 量子计算科普

2016-06-12 文章 Alick Zhao 
+1 得州卡城居然也不卡（至少前一分钟）！

2016-06-12 5:17 GMT-05:00 Wang Kang :

> 哇，画质感人！
>
> VP9果然名不虚传啊~  当年号称跟HEVC有一拼的技术
>
> 在Firefox里都不用下载，直接播放，好评！
>
> --
> Wang Kang
> i...@scateu.me
>
>
> On Sun, Jun 12, 2016, at 17:59, Justin Wong wrote:
>
> 视频已可下载，有 mp4 和 webm 两种格式
> https://mirrors.tuna.tsinghua.edu.cn/tuna/quantum_info/
>
> p.s. webm 用了 vp9，基本相同画质的情况下，大小只有 200+M，原 mp4 有 1.2G ……
> p.s.2 mp4 是 iphone 拍的，跟手机的硬件编码也有关系
>
> --
> Justin Wong
>
>
>
> On Mon, Jun 6, 2016, at 21:53, yi lu wrote:
>
> 哇
>
> 2016-06-06 21:37 GMT+08:00 Justin Wong :
>
> Hi Tuars,
>
> 本周的金枪鱼之夜已经确定，物理系吕铭同学做完毕设很有收获，中央决定让吕铭同学给大家科普一下量子计算。
>
> 时间：6月11日（周六）晚 19:00 ~ 21:00
> 地点：三教 1301
>
> p.s. 明天就要高考啦，@gaoyichuan @harry_chen @其他订阅这个列表的考生，我们在TUNA等你来～
>
> 以上，
> 团长
> --
> Justin Wong
>
>

-- 
Regards,
Alick

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Re: Re: [tuna-general] [金枪鱼之夜] 量子计算科普

2016-06-12 文章 Justin Wong 
ffmpeg -i quantum_infomation.mp4 -c:v libvpx-vp9 -b:v 512K -c:a
libvorbis quantum_infomation.webm
 
--
Justin Wong
 
 
 
On Sun, Jun 12, 2016, at 18:23, Wang Kang wrote:
> VP9是怎么编码的呢？求教程
>
> 看了一下ffmpeg的那个static build里面目前只有VP9的解码器..
>
> $ ffmpeg -codecs |grep vp
> ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
> built with Apple LLVM version 7.3.0 (clang-703.0.31)
> configuration: --prefix=/usr/local/Cellar/ffmpeg/3.0.2 --enable-shared
> --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-
> tables --enable-avresample --cc=clang --host-cflags= --host-ldflags=
> --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid
> --enable-ffplay --enable-vda
> libavutil  55. 17.103 / 55. 17.103
> libavcodec 57. 24.102 / 57. 24.102
> libavformat    57. 25.100 / 57. 25.100
> libavdevice    57.  0.101 / 57.  0.101
> libavfilter 6. 31.100 /  6. 31.100
> libavresample   3.  0.  0 /  3.  0.  0
> libswscale  4.  0.100 /  4.  0.100
> libswresample   2.  0.101 /  2.  0.101
> libpostproc    54.  0.100 / 54.  0.100
> D.V.L. vp3  On2 VP3
> D.V.L. vp5  On2 VP5
> D.V.L. vp6  On2 VP6
> D.V.L. vp6a On2 VP6 (Flash version, with alpha
> channel)
> D.V.L. vp6f On2 VP6 (Flash version)
> D.V.L. vp7  On2 VP7
> D.V.L. vp8  On2 VP8
> D.V.L. vp9  Google VP9
> DEA.LS wavpack  WavPack
> D.S... vplayer  VPlayer subtitle
>
> --
> Wang Kang
> i...@scateu.me
>
>
> On Sun, Jun 12, 2016, at 18:20, Justin Wong wrote:
>> 原来如此，我看了下是 2000kbps 的 mp4，昨天录的时候应该是 1000kbps 的
>>
>> --
>> Justin Wong
>>
>>
>>
>> On Sun, Jun 12, 2016, at 18:18, xavier...@me.com wrote:
>>> 主要是用iMovie重新编码了
>>>
>>> Get Outlook for iOS[1]
>>>
>>>
>>>
>>>
>>> On Sun, Jun 12, 2016 at 5:59 PM +0800, "Justin Wong" 
>>> wrote:
>>>
>>>
 视频已可下载，有 mp4 和 webm 两种格式
 https://mirrors.tuna.tsinghua.edu.cn/tuna/quantum_info/

 p.s. webm 用了 vp9，基本相同画质的情况下，大小只有 200+M，原 mp4 有 1.2G ……
 p.s.2 mp4 是 iphone 拍的，跟手机的硬件编码也有关系

 --
 Justin Wong



 On Mon, Jun 6, 2016, at 21:53, yi lu wrote:
> 哇
>
> 2016-06-06 21:37 GMT+08:00 Justin Wong :
>> Hi Tuars,
>>
>> 本周的金枪鱼之夜已经确定，物理系吕铭同学做完毕设很有收获，中央决定让吕铭同学给大家科普一下量子计算。
>>
>> 时间：6月11日（周六）晚 19:00 ~ 21:00
>> 地点：三教 1301
>>
>> p.s. 明天就要高考啦，@gaoyichuan @harry_chen @其他订阅这个列表的考生，我们在TUNA等你来～
>>
>> 以上，
>> 团长
>> --
>> Justin Wong
>>
>> --
>>
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Re: Re: [tuna-general] [金枪鱼之夜] 量子计算科普

2016-06-12 文章 Wang Kang 
VP9是怎么编码的呢？求教程
 
看了一下ffmpeg的那个static build里面目前只有VP9的解码器..
 
$ ffmpeg -codecs |grep vp
ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
built with Apple LLVM version 7.3.0 (clang-703.0.31)
configuration: --prefix=/usr/local/Cellar/ffmpeg/3.0.2 --enable-shared
--enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-
tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-
opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-
ffplay --enable-vda
libavutil  55. 17.103 / 55. 17.103
libavcodec 57. 24.102 / 57. 24.102
libavformat    57. 25.100 / 57. 25.100
libavdevice    57.  0.101 / 57.  0.101
libavfilter 6. 31.100 /  6. 31.100
libavresample   3.  0.  0 /  3.  0.  0
libswscale  4.  0.100 /  4.  0.100
libswresample   2.  0.101 /  2.  0.101
libpostproc    54.  0.100 / 54.  0.100
D.V.L. vp3  On2 VP3
D.V.L. vp5  On2 VP5
D.V.L. vp6  On2 VP6
D.V.L. vp6a On2 VP6 (Flash version, with alpha channel)
D.V.L. vp6f On2 VP6 (Flash version)
D.V.L. vp7  On2 VP7
D.V.L. vp8  On2 VP8
D.V.L. vp9  Google VP9
DEA.LS wavpack  WavPack
D.S... vplayer  VPlayer subtitle
 
--
Wang Kang
i...@scateu.me
 
 
On Sun, Jun 12, 2016, at 18:20, Justin Wong wrote:
> 原来如此，我看了下是 2000kbps 的 mp4，昨天录的时候应该是 1000kbps 的
>
> --
> Justin Wong
>
>
>
> On Sun, Jun 12, 2016, at 18:18, xavier...@me.com wrote:
>> 主要是用iMovie重新编码了
>>
>> Get Outlook for iOS[1]
>>
>>
>>
>>
>> On Sun, Jun 12, 2016 at 5:59 PM +0800, "Justin Wong"
>>  wrote:
>>
>>
>>> 视频已可下载，有 mp4 和 webm 两种格式
>>> https://mirrors.tuna.tsinghua.edu.cn/tuna/quantum_info/
>>>
>>> p.s. webm 用了 vp9，基本相同画质的情况下，大小只有 200+M，原 mp4 有 1.2G ……
>>> p.s.2 mp4 是 iphone 拍的，跟手机的硬件编码也有关系
>>>
>>> --
>>> Justin Wong
>>>
>>>
>>>
>>> On Mon, Jun 6, 2016, at 21:53, yi lu wrote:
 哇

 2016-06-06 21:37 GMT+08:00 Justin Wong :
> Hi Tuars,
>
> 本周的金枪鱼之夜已经确定，物理系吕铭同学做完毕设很有收获，中央决定让吕铭同学给大家科普一下量子计算。
>
> 时间：6月11日（周六）晚 19:00 ~ 21:00
> 地点：三教 1301
>
> p.s. 明天就要高考啦，@gaoyichuan @harry_chen @其他订阅这个列表的考生，我们在TUNA等你来～
>
> 以上，
> 团长
> --
> Justin Wong
>
> --
>
>  ---
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Re: [tuna-general] [金枪鱼之夜] 量子计算科普

2016-06-12 文章 Justin Wong 
视频已可下载，有 mp4 和 webm 两种格式
https://mirrors.tuna.tsinghua.edu.cn/tuna/quantum_info/
 
p.s. webm 用了 vp9，基本相同画质的情况下，大小只有 200+M，原 mp4 有 1.2G ……
p.s.2 mp4 是 iphone 拍的，跟手机的硬件编码也有关系
 
--
Justin Wong
 
 
 
On Mon, Jun 6, 2016, at 21:53, yi lu wrote:
> 哇
>
> 2016-06-06 21:37 GMT+08:00 Justin Wong :
>> Hi Tuars,
>>
>>  本周的金枪鱼之夜已经确定，物理系吕铭同学做完毕设很有收获，中央决定让吕铭同学给大家科普一下量子计算。
>>
>>  时间：6月11日（周六）晚 19:00 ~ 21:00
>>  地点：三教 1301
>>
>>  p.s. 明天就要高考啦，@gaoyichuan @harry_chen @其他订阅这个列表的考生，我们在TUNA等你来～
>>
>>  以上，
>>  团长
>>  --
>>  Justin Wong
>>
>>  --
>>
>>  ---
>>  You received this message because you are subscribed to the Google
>>  Groups "TUNA 主邮件列表" group. To unsubscribe from this group and stop
>>  receiving emails from it, send an email to tuna-
>>  general+unsubscr...@googlegroups.com[1]. To post to this group, send
>>  email to tuna-general@googlegroups.com. For more options, visit
>>  https://groups.google.com/d/optout.
>
>
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>
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Links:

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Re: [tuna-general] [金枪鱼之夜] 量子计算科普

2016-06-06 文章 yi lu 
哇

2016-06-06 21:37 GMT+08:00 Justin Wong :

> Hi Tuars,
>
> 本周的金枪鱼之夜已经确定，物理系吕铭同学做完毕设很有收获，中央决定让吕铭同学给大家科普一下量子计算。
>
> 时间：6月11日（周六）晚 19:00 ~ 21:00
> 地点：三教 1301
>
> p.s. 明天就要高考啦，@gaoyichuan @harry_chen @其他订阅这个列表的考生，我们在TUNA等你来～
>
> 以上，
> 团长
> --
> Justin Wong
>
> --
>
> ---
> You received this message because you are subscribed to the Google Groups
> "TUNA 主邮件列表" group.
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>

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