引用
最初由 hql 发布
不要生气那位仁兄智商确实很高!!!在计算文件大小方面,斤斤计较那几MB方面比我们要高:o 而且在美术方面也有高人一筹的见识.把马塞克和毛刺当成了画面特效.:rolleyes:
英雄所见略同啊，兄弟，我们握个手先。:)
为什么有这么多人认为2pass要好呢，我想大概是Helix Producer Plus的说明在误导吧？参见2-Pass参数的说明：
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Disable 2-Pass Encoding-dt
If option is present, the input file is read in single pass only. 2-pass is an encoding technique where the file is read in two passes. The first pass analyzes the file to determine where the most bits are required in the file. The second pass encodes the file using hints provided by the first pass. By disabling this option, the resulting file will be of lower quality but the encoding time is reduced by about one half. This option is applied to all outputs. 2-pass encoding only applies for encoding file to file so this option is ignored if input is a device (-ac, -vc) or output is a server (-sp, -si, -sg, -sd).
Default:
This option takes no arguments. By default, 2-pass encoding is enabled in the command line unless this option is present.
Values:
No value required for this option.
Example:
-tp
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我想那些智慧高的人就是听信了官方说明而盲目相信吧？
经过实践，可以发现2pass实际并没达到上面说的功能。如果上面说的就是2pass应有的作用，那现在的2pass就还是带着大bug的个半成品，还有待改进。我们就等Helix Producer Plus 的新版本看是否有所完善吧！:)
Helix Producer Plus 到处都有bug啊，你注意到到这段说明有一个地方明显不对吗？
就是
Example:
-tp
注意，关闭2pass应该用 -dt ，为什么会写成 -tp 呢？
:rolleyes:
