info regarding a field of OMX_BUFFERHEADERTYPE structure

hi ,

In the OMX_BUFFERHEADERTYPE structure, the Time Stamp information is conveyed by the field nTimeStamp.
I feel this is not sufficient as some buffers may not have Timestamps, and the value of nTimeStamp field for such buffers are not valid.
I suggest the need of an additional field bIsValidTimeStamp or an additional flag OMX_BUFFERFLAG_VALIDTIMESTAMP to validate the nTimeStamp field.

Plz convey your thoughts on this.

Best regards

Jerry Mannil