星期六, 6月 28, 2008

Sony AVCHD 測試

電腦: MacBook 黑
 CPU: Intel Core 2 Duo 2.4G
 RAM: 4GB L2 catch: 3MB
 BUS: 800 MHz
 顯示卡: Intel GMA X3100
 OS: 10.5.3
 Final Cut Pro: 6.0.4
攝影機: Sony HDR-SR5 (AVCHD(1440x1080) 硬碟式)
匯入 Clips: 20 個
匯入總長: 11'08"

TransCode 格式: ProRes
花費時間: 16'24" 
Data Rate: 14.6MB/sec ~ 15.5MB/sec 

TransCode 格式: Intermediate 
花費時間: 11'58"
Data Rate: 7.5MB/sec ~ 14.9MB/sec
---------------------------------------------------------------------------- 
剪輯後: (Sequence setting: DVCPro HD, 卡接無效果) 
Duration: 2'21"20 
ProRes export to DVCPro HD 
花費時間: 5'30" 
File Size: 1.92G (2,065,395,826) 

ProRes export to ProRes 1920x1080 
花費時間: 7'48" 
File Size: 2.3G (2,474,918,581) 

Intermediate export to Intermediate 
花費時間: 5'10" 
File Size: 1.4G (1,500,458,442) 

Intermediate export to DVCPro HD 
花費時間: 5'5" 
File Size: 1.92G (2,065,395,826) 
---------------------------------------------------------------------------------------------  

Pure Intermediate (Sequence setting: Intermediate, 卡接無效果, Export current setting) 
duration 1' 
花費時間: 34" 
File Size: 617M (646,986,745) 
--------------------------------------------------------------------------------------------- 

Pure ProRes (Sequence setting: ProRes(1440x1080), 卡接無效果, Export current setting)
duration 1' 
花費時間: 50' 
File Size: 896.7M (940,279,673) 

1440x1080 to 1920x1080 
花費時間: 2'31" 
File Size: 1010.2M (1,059,296,254) 

----------

從上面的數據看來, 素材, sequence, 輸出, 三者為同一種格式, 速度最快. 
另外, OnTheAir 不能播 Intermediate, 只能播 DVCPro HD 及 ProRes. 而且它將 Full HD (1920x1080) 及 DVCPro HD (1280x1080) 分成兩支程式. (也就是說, 它不處理圖框拉寬或壓縮) 測試結果, 1440x1080 在這兩者播出來, 都會變型.

沒有留言: