我正在尝试播放视频。我收到以下错误：
E/gralloc_ranchu( 2305): updateHostColorBuffer: Unexpected DMA
E/ ( 2305): lockAndWriteDma: ERROR: No DMA context bound!
我只是使用来自https://pub.dev/packages/chewie的示例代码，而视频播放器只显示绿屏并且不执行任何操作。有任何想法吗？
编辑：还有一些可能有帮助的评论？
I/ExoPlayerImpl(10386): Release 3310ed3 [ExoPlayerLib/2.12.1] [generic_x86_arm, AOSP on IA Emulator, Google, 28] [goog.exo.core]
D/SurfaceUtils(10386): disconnecting from surface 0xd36c1008, reason disconnectFromSurface
I/ExoPlayerImpl(10386): Release d52c17 [ExoPlayerLib/2.12.1] [generic_x86_arm, AOSP on IA Emulator, Google, 28] [goog.exo.core]
D/SurfaceUtils(10386): disconnecting from surface 0xd2c83808, reason disconnectFromSurface
I/ExoPlayerImpl(10386): Init d3251ff [ExoPlayerLib/2.12.1] [generic_x86_arm, AOSP on IA Emulator, Google, 28]
I/OMXClient(10386): IOmx service obtained
D/SurfaceUtils(10386): connecting to surface 0xd1be1008, reason connectToSurface
I/MediaCodec(10386): [OMX.google.h264.decoder] setting surface generation to 10635268
D/SurfaceUtils(10386): disconnecting from surface 0xd1be1008, reason connectToSurface(reconnect)
D/SurfaceUtils(10386): connecting to surface 0xd1be1008, reason connectToSurface(reconnect)
E/ACodec (10386): [OMX.google.h264.decoder] setPortMode on output to DynamicANWBuffer failed w/ err -1010
I/ACodec (10386): codec does not support config priority (err -1010)
I/OMXClient(10386): IOmx service obtained
I/ACodec (10386): codec does not support config priority (err -2147483648)
I/ACodec (10386): codec does not support config operating rate (err -2147483648)
D/MediaCodec(10386): [OMX.google.h264.decoder] setting dataspace on output surface to #104
I/om.example.kli(10386): Background concurrent copying GC freed 11055(2MB) AllocSpace objects, 769(50MB) LOS objects, 50% free, 5MB/10MB, paused 529us total 209.709ms
W/MapperHal(10386): buffer descriptor with invalid usage bits 0x2000