//inputStream is a MP4 file in scard.
// new FileInputStream(file.getAbsolutePath());
MediaMetadataRetriever retriever = new MediaMetadataRetriever();
FileDescriptor fileDescriptor = inputStream.getFD();// value 61
retriever.setDataSource(fileDescriptor);
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结果:
java.lang.RuntimeException: setDataSource 失败: status = 0xFFFFFFEA
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