昨天下了青出于蓝的DVDRIP，是MKV格式
今天打开看
只有图象，没有声音
而且，字幕也出不来
不知道是什么原因呢
MPC显示为：
mpc could not render some of the pins in the graph,you may not have the needed codecs or filters installed on the system.
the following pins failed to find a connectable filter: ACM Wrapper::output
Stream 1
ACM Wrapper
Media Type 0:
--------------------------
AM_MEDIA_TYPE:
majortype: MEDIATYPE_Audio {73647561-0000-0010-8000-00AA00389B71}
subtype: MEDIASUBTYPE_PCM {00000001-0000-0010-8000-00AA00389B71}
formattype: FORMAT_WaveFormatEx {05589F81-C356-11CE-BF01-00AA0055595A}
bFixedSizeSamples: 1
bTemporalCompression: 0
lSampleSize: 4
cbFormat: 18
WAVEFORMATEX:
wFormatTag: 0x0001
nChannels: 2
nSamplesPerSec: 44100
nAvgBytesPerSec: 176400
nBlockAlign: 4
wBitsPerSample: 16
