GstBaseSrc.canActivatePush

• GstReserved
• blocksize
• canActivatePush
• clockId
• element
• isLive
• liveCond
• liveLock
• liveRunning
• needNewsegment
• numBuffers
• numBuffersLeft
• pendingSeek
• priv
• randomAccess
• running
• segment
• srcpad
• typefind