在多媒体性能测试方面,我们采用的测试软件是TCPMP v0.81版多媒体播放器,分别对音频、视频两项做了单独的测试。
视频测试:
测试源文件为一个大小为13.3MB的AVI格式视频,视频编码为MPEG 4 DIVX\Xvid,分辨率为320×240,原始帧数25帧/秒,音频编码为MP3,比特率为48kbit/s。测试结果如下:
0.81RC1 Beta Benchmark Results
Average Speed 137.51%
Video Frames 5759
Audio Samples 5120010
Amount of Data 13345 KB
Bench. Time 2:47.517
Bench. Frame Rate 34.38
Bench. Sample Rate 30564
Bench. Data Rate 653 kbit/s
Original Time 3:50.359
Original Frame Rate 25.00
Original Sample Rate 22050
Original Data Rate 475 kbit/s
URL \存储卡\Kelly Clarkson《Never Again》.avi
Size 13665628
Platform PocketPC
OS Version 5.02
OEM Info ELF011000
Clock speed 175 Mhz
Video output Raw FrameBuffer 240x320 16bits Lookup
Video zoom 320x240 -> 240x320
Audio output Wave Output 22050Hz 16Bits 2Ch.
音频测试:
音频测试源文件为一个大小7.3M的MP3文件,音频长度4分23秒,音频编码为MP3,44100Hz立体声,比特率230kbit/s,测试结果如下:
TCPMP Version
Subtitle Edition
0.81RC1 Beta Benchmark Results
Average Speed 610.20%
Audio Samples 11666452
Amount of Data 7375 KB
Bench. Time 0:43.353
Bench. Sample Rate 269106
Bench. Data Rate 1.4 Mbit/s
Original Time 4:24.545
Original Sample Rate 44100
Original Data Rate 228 kbit/s
URL \存储卡\Music\好久不见.mp3
Size 7552828
Platform PocketPC
OS Version 5.02
OEM Info ELF011000
Clock speed 176 Mhz
Audio output Wave Output 44100Hz 16Bits 2Ch.