Flac file is playing, seek to 21 second. However playback ends.
The following is the log information：
01-01 00:01:39.077 221 3884 I OMXPlayer: LEVEL: 3 FUNCTION: GetAndSendOneAudioBuf LINE: 1373
01-01 00:01:39.078 221 3884 I OMXPlayer: GetAndSendOneAudioBuf,1373,drop one audio buffer in parser, ts -1 sActualSyncPoint: 21000000
01-01 00:01:39.078 221 3884 I OMXPlayer: LEVEL: 5 FUNCTION: GetNextSampleFileMode LINE: 1697
01-01 00:01:39.078 221 3884 I OMXPlayer: GetNextSampleFileMode track 0
01-01 00:01:39.078 221 3884 I OMXPlayer: LEVEL: 5 FUNCTION: SharedFdPipe_CheckAvailableBytes LINE: 110
01-01 00:01:39.078 221 3884 I OMXPlayer: SharedFdPipe_CheckAvailableBytes: nLen: 43939859, nPos: 5056128, Reqest: 16384
。。。
01-01 00:01:41.225 221 3884 I OMXPlayer: LEVEL: 3 FUNCTION: GetAndSendOneAudioBuf LINE: 1373
01-01 00:01:41.225 221 3884 I OMXPlayer: GetAndSendOneAudioBuf,1373,drop one audio buffer in parser, ts -1 sActualSyncPoint: 21000000
01-01 00:01:41.225 221 3884 I OMXPlayer: LEVEL: 5 FUNCTION: GetNextSampleFileMode LINE: 1697
01-01 00:01:41.225 221 3884 I OMXPlayer: GetNextSampleFileMode track 0
01-01 00:01:41.225 221 3884 I OMXPlayer: LEVEL: 5 FUNCTION: SharedFdPipe_CheckAvailableBytes LINE: 110
01-01 00:01:41.225 221 3884 I OMXPlayer: SharedFdPipe_CheckAvailableBytes: nLen: 43939859, nPos: 41592448, Reqest: 16384
