二儿子对RMVB还是靠软解，码率高就不行了。

真正通吃还是国产ARM处理器，大部分格式直接硬解。或者非Tegra2的双核，软件毫无压力，硬解H264无问题。

Dice Player很好的解释了各机型的播放能力
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Supported devices
* Honeycomb tables(TF101,GT10.1,Iconia500) : 720p High@4.1 ( no weighted prediction )
* Samsung Galaxy S2 : 1080p H.264 high@5.1/MPEG-4,1080i AVCHD MTS
* Samsung Galaxy S and variants : 720p H.264 High@5.1
* Samsung Galaxy Tab(7') : 1080p H.264 High@5.1. 1080i have interlace artifacts.
* Samsung Galaxy Player (YP-GB1) : 720p H.264 High@5.1
* HTC Nexus-1,Desire and QSD8250 baesd devices : 720p H.264 High@3.1
=> May need libOmxVdec.so patch.
* HTC Sensation,Evo 4G+.Evo 3D : 720p High@5.1/1080p High@5.1(some 1080p files have shuttering)
* HTC Desire HD,ThunderBolt : 720p High@3.1/4.0(some Level 4.0 file have shutter problem)
* Toshiba TG-03 and many japaneses vendors' QSD8250 baed devices : 720p H.264 High@3.1
=> May need libOmxVdec.so patch.
* Dell Streak,Venue : 720p H.264 High@3.1
=> May need libOmxVdec.so patch.
* SonyErricson Xperia Arc,Acro : 720p High@3.1/4.0(some Level 4.0 file have shutter problem)
* Motolora Defy : 720p capable but Gingerbread required.
* LG Optimus 2x,Moto Atrix : video capability depends on your firmware.
Limitations
* Video capability depends on your devices HW video decodes' capability.
* Some devices(Moto Defy, Galaxy S/Tab) need gingerbread update.
* Tegra 2 based devices : H.264 High@4.1 ( no weighted prediction )