这是好事,希望赶快开始应用。
引用第42楼hourousha于2013-07-10 22:29发表的 :
所以您只是轻描淡写一句‘X264也只是号称比“大部分商用编码器”好而已’,是比较没说服力的。
....... images/back.gif
谢谢链接。
前面帖子说过了
只谈质量也许没错,考虑编码速度,未必。
解码器好坏也不能只谈质量。
那报告我刚看了,其中speed/quality项很多是intel领先。(编辑下:刚才眼睛花看错了)
迄今为止数据表明,X264质量上领先,我很赞同。
谢谢大家的意见。
引用第43楼Jet.Black于2013-07-10 23:20发表的:
谢谢链接。
前面帖子说过了
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考虑编码速度?你知道x264开-fastest有多快么?
本来质量和编码速度就是一个相互平衡的东西。 引用第44楼sakamoto于2013-07-10 23:30发表的:
考虑编码速度?你知道x264开-fastest有多快么?
本来质量和编码速度就是一个相互平衡的东西。 images/back.gif
这些是链接里那报告说的。
报告里指的综合考虑速度/质量。 我无意说X264有哪里不好,
只是对前面某楼‘闭源实现都是翔’这个论调让我十分不爽。
除了这个我没有任何反对的地方。
引用第45楼Jet.Black于2013-07-10 23:34发表的:
这些是链接里那报告说的。
报告里指的综合考虑速度/质量。 images/back.gif
你确定?我翻了一下报告看到这样一段
Conclusion
Comparing all results from Fast encoders comparison part one could say that
x264 and Intel QuickSync are best in terms of speed/quality trade-off.
MainConcept OpenCL is third and MainConcept CUDA is fourth.
So best of hardware encoders Intel QuickSync and best of software encoders
x264 are comparable by speed/quality at very high speed encoding. 引用第47楼sakamoto于2013-07-10 23:48发表的 :
你确定?我翻了一下报告看到这样一段
Conclusion
Comparing all results from Fast encoders comparison part one could say that
x264 and Intel QuickSync are best in terms of speed/quality trade-off.
MainConcept OpenCL is third and MainConcept CUDA is fourth.
So best of hardware encoders Intel QuickSync and best of software encoders
x264 are comparable by speed/quality at very high speed encoding.
....... images/back.gif
Fast encoders on good desktop hardware (Core i7 3770(IVB), 4 Cores CPU
@3.4 GHz with integrated GPU Intel HD Graphics 4000) comparison shown
that x264 and Intel QuickSync are best in terms of speed/quality trade-off.
And it was interesting to compare the same leading encoders at weaker
hardware – laptop with next charactertcics (Core i7 3610QM (IVB), 4 Cores
CPU @2.30GHz with integrated GPU Intel HD Graphics 4000)
The quality of encoders remains the same only encoding speed was
changed.
As one can see at laptop hardware encoding speed for QuickSync is higher
than for x264 because of the fact that CPU (that x264 used) is much weaker
and integrated GPU (that QuickSync used) is almost the same.
This test shows that using Laptop hardware with weaker CPU with basic
integrated GPU hardware encoder QuickSync is better in terms speed/quality
trade-off than best pure software encoder x264 at very high-speed encoding.
所以CPU好的时候INTEL和X264并列,CPU不行的话(笔记本电脑)INTEL碾压X264,说的是这个吧。 然后你从质量转进到速度现在又转进到功耗了么
很好很强大 引用第49楼sakamoto于2013-07-11 00:09发表的:
然后你从质量转进到速度现在又转进到功耗了么
很好很强大 images/back.gif
真没转进,X264很块也很好,我很同意。
谢谢指教。
引用第50楼Jet.Black于2013-07-11 00:15发表的:
真没转进,X264很块也很好,我很同意。
谢谢指教。
....... images/back.gif
quicksync的用途应该是实时转码的视频会议/无线显示以及低功耗不追求质量/容量比的拍摄设备。
压片没有可调性谁理你。 录段视频传新浪,为了不被恶心的2压,除了x264我还有啥选择?
煞笔兮兮的还上窜下跳喷了
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