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夏新E70視頻性能測(cè)試

云知道

天氣真熱,席子都像著火了一樣,讓人無(wú)法午睡.閑著也是閑著,就用TCPMP 0.81RC1對(duì)夏新E70的視頻性能進(jìn)行了測(cè)試.
前幾天用winAVI轉(zhuǎn)了一部影片《神奇遙控器》，剛開始轉(zhuǎn)為320*240 256KBPS，但是播放的太卡，就轉(zhuǎn)成了多普達(dá)535能看的屏幕大小224*128 256KBPS(影片是16:9)現(xiàn)在就用它來(lái)測(cè)試一下夏新E70的視頻性能.
打開TCPMP軟件,視頻驅(qū)動(dòng)里支持如下四種驅(qū)動(dòng)模式:
1.DirectDraw
2.原始緩沖
3.GAPI解碼
4.GDI 解碼
看到這里,你可能以為像PC里一樣DirectDraw模式應(yīng)該是最快的,但其實(shí)不然.下面是四個(gè)模式的測(cè)試結(jié)果.
1.DirectDraw
Average Speed48.95%
Video Frames309
Audio Samples499511
Amount of Data498 KB
Bench. Time0:31.890
Bench. Frame Rate9.69
Bench. Sample Rate15663
Bench. Data Rate128 kbit/s
Original Time0:15.609
Original Sample Rate32000
Original Data Rate262 kbit/s
URLStorage Card神奇遙控器.WMV
Size179858172
PlatformSmartPhone
OS Version5.01
OEM InfoTexas Instruments Inc
Clock speed307 Mhz
Video outputDirectDraw 240x320 16bits Lookup
Video zoom224x128 -> 183x320
Audio outputWave Output 32000Hz 16Bits 2Ch.
2.原始緩沖
Average Speed222.02%
Video Frames663
Audio Samples1410687
Amount of Data924 KB
Bench. Time0:19.855
Bench. Frame Rate33.39
Bench. Sample Rate71047
Bench. Data Rate381 kbit/s
Original Time0:44.083
Original Sample Rate32000
Original Data Rate172 kbit/s
URLStorage Card神奇遙控器.WMV
Size179858172
PlatformSmartPhone
OS Version5.01
OEM InfoTexas Instruments Inc
Clock speed310 Mhz
Video outputRaw FrameBuffer 240x320 16bits Lookup
Video zoom224x128 -> 184x320
Audio outputWave Output 32000Hz 16Bits 2Ch.
3.GAPI解碼
Average Speed217.43%
Video Frames700
Audio Samples1467108
Amount of Data944 KB
Bench. Time0:21.085
Bench. Frame Rate33.20
Bench. Sample Rate69578
Bench. Data Rate367 kbit/s
Original Time0:45.847
Original Sample Rate32000
Original Data Rate169 kbit/s
URLStorage Card神奇遙控器.WMV
Size179858172
PlatformSmartPhone
OS Version5.01
OEM InfoTexas Instruments Inc
Clock speed170 Mhz
Video outputGAPI解碼 240x320 16bits Lookup
Video zoom224x128 -> 184x320
Audio outputWave Output 32000Hz 16Bits 2Ch.
4.GDI 解碼
Average Speed186.08%
Video Frames931
Audio Samples1748022
Amount of Data1235 KB
Bench. Time0:29.355
Bench. Frame Rate31.71
Bench. Sample Rate59546
Bench. Data Rate345 kbit/s
Original Time0:54.625
Original Sample Rate32000
Original Data Rate185 kbit/s
URLStorage Card神奇遙控器.WMV
Size179858172
PlatformSmartPhone
OS Version5.01
OEM InfoTexas Instruments Inc
Clock speed310 Mhz
Video outputGDI 解碼 240x320 16bits Lookup
Video zoom224x128 -> 180x320
Audio outputWave Output 32000Hz 16Bits 2Ch.
TCPMP對(duì)CPU速度測(cè)不準(zhǔn)這是眾所周知的,所以,雖然是同一部手機(jī),但是四次測(cè)試中CPU速度都不一樣.通過(guò)以上的結(jié)果對(duì)比,可以知道把視頻模式設(shè)置在"原始緩沖"模式下能獲得最大的播放效果,通過(guò)實(shí)際的觀看,也確實(shí)比其它模式播放的比較流暢.相較而言,最能看好的"DirectDraw"模,卻獲得了最低的播放速度,實(shí)際播放效果也如測(cè)試得到的結(jié)果一致,播放影片很卡,極不流暢.
所以,如果你用夏新E70看影片,覺得比較卡的話,還是調(diào)整一下解碼模式比較好(我個(gè)人比較看好"原始緩沖"模式),比用OMAPCLOCK超頻來(lái)的效果要好...
另外,是不是在TCPMP的"更多設(shè)置"->"緩沖設(shè)置"中,將視頻的緩沖區(qū)設(shè)置得越大越好呢?事實(shí)也并不是那樣,設(shè)置得過(guò)大,同樣會(huì)造成播放影片時(shí)比較卡(個(gè)人分析,原因在于需要同時(shí)解碼的數(shù)據(jù)量也隨之增大,影響到了前臺(tái)的播放),設(shè)置得過(guò)小時(shí),則播放一會(huì)就會(huì)出現(xiàn)"緩沖不足"的提示,在大和小之間,應(yīng)該有一個(gè)適當(dāng)?shù)闹?軟件默認(rèn)的視頻緩沖768KB應(yīng)該就是一個(gè)比較佳的設(shè)置.但在我試驗(yàn)之后,我把它設(shè)置為了512KB,覺得似乎效果要好一些.(或許是心理作用...)

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