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VISA_create problem

hi,I have modified the videnc_copy in the codec engine .after I run my app.out,It happened to a crash in VIDENC_create as following debug:

@3,157,754us: [+0 T:0x400176e8 S:0xbefffcac] ti.sdo.ce.video.VIDENC - VIDENC_create> Enter (engine=0x32818, name='videnc_copy', params=0x0)
@3,158,021us: [+0 T:0x400176e8 S:0xbefffc7c] CV - VISA_create(0x32818, 'videnc_copy', 0x0, 0x828, 'ti.sdo.ce.video.IVIDENC')
@3,158,261us: [+0 T:0x400176e8 S:0xbefffbac] CV - VISA_create2(0x32818, 'videnc_copy', 0x0, 0x0, 0x828, 'ti.sdo.ce.video.IVIDENC')
@3,158,530us: [+0 T:0x400176e8 S:0xbefffb54] CE - Engine_createNode(0x32818, 'videnc_copy', 828, 0x0, 0x0, 0xbefffca8)
@3,158,810us: [+0 T:0x400176e8 S:0xbefffb2c] OC - Comm_create> Enter(queueName='gppfromnode', queue=0x32b30, attrs=0x0)
@3,159,385us: [+0 T:0x400176e8 S:0xbefffb2c] OC - Comm_create> return (0x32b50)
@3,159,640us: [+0 T:0x400176e8 S:0xbefffb34] OC - Comm_put> Enter(queue=0x0, msg=0x41152c80)
@3,159,941us: [+0 T:0x400176e8 S:0xbefffb34] OC - Comm_put> return (0)
@3,160,165us: [+0 T:0x400176e8 S:0xbefffb2c] OC - Comm_get> Enter(queue=0x10000, msg=0xbefffbac, timeout=-1)

I think I have something wrong in my program or config,can you give a suggestion.thanks a lot.