最近开始看英文字幕的动画，发现一个郁闷的问题，国外的都不用rmvb，结果是所有最小的就170mb，，，在论坛上和他们交流了很久貌似他们一致认为rmvb很垃圾，我帖出图告诉他们的一个177mb的片是多么不如这边的一个100mb的rmvb,结果扯了半天貌似h.264,,,,
--
Well, there have been some interesting posts in this thread with interesting claims that I wanted to test. The argument comes down to how they compare, using the best tools available. It's no good having some mythical Real encoder that can do 25mb encoding if you don't actually have access to it.
One RV10 encoder I did have acess to however is Real Producer Basic. It's the Real Thing from Real Networks (), the only thing it doesn't let you do is change the predefined profiles. To work around that, I found a profile that used the highest possible quality settings at a lowish bitrate (350kbits), and then encoded the x264 to the same bitrate. No audio encoding was included.
The source:
The file was Honey & Clover II HD - 01 [Solar-IDE][9304C110].mkv, a 720p 24fps "good-enough-for-what-I-need" source which was noise free and with no banding. It's still not licenced, right? Passed it through an AVS script to make it a little more compressible:
directshowsource("Honey & Clover II HD - 01 [Solar-IDE][9304C110].mkv")
killaudio()
bilinearresize(480,272)
Dup(threshold=0.8,blend=true)
removegrain(2)
The x264 Encode:
x264.exe --pass 1 --bitrate 350 --keyint 999 --ref 16 --mixed-refs --no-fast-pskip --bframes 16 --b-pyramid --b-rdo --bime --weightb --direct auto --filter 1,1 --subme 7 --trellis 2 --analyse all --8x8dct --me umh --progress --cqmfile "m4g-lrm.cfg" --thread-input --threads 3 --output NUL "hctest.avs"
x264.exe --pass 2 --bitrate 350 --keyint 999 --ref 16 --mixed-refs --no-fast-pskip --bframes 16 --b-pyramid --b-rdo --bime --weightb --direct auto --filter 1,1 --subme 7 --trellis 2 --analyse all --8x8dct --me umh --progress --cqmfile "m4g-lrm.cfg" --thread-input --threads 3 --output "hctest.mkv" "hctest.avs"
pause
Nothing special here - options were reasonably normal. Special interest is the ...'interesting' GOP size and that's about it. The matrix is sourced from here. The RV10 Encode:
Done through Real Producer Basic. I used the 350kbits 'download' profile. Nothing interesting otherwise. I enabled 2pass. (使用Real Producer Basic ,350kbits "download",开启了双通道?)
The Results
Here is the first 10 seconds of both full encodes. The screenshot is frame #50.
(这里是前十秒,截图在第50Frame )
rmvb
下载完整版 (full encode) 
h264
下载完整版 (full encode) 
Of note is the size difference, there's obviously large differences to RC under the hood.
I think the first 10 seconds give a very good indication of the rest of the thing, if you reeeally reeeally need it I will post the whole things.
EDIT: I forgot
The Conclusion
China sucks.
EDIT2:
h264 on the left, RMVB on the right.
Not the same frame... I'm lazy.
Notice the funny colour in the RV encode.
Through this entire sequence the longer it goes on, the blockier and blockier the RV10 becomes. h264 stays nice and consistant quality, not to mention no smudging in sight!
(结果h264一直保持清晰但rv10却渐渐模糊)
--------
两个文件都小于60mb且相同大小，，，
