unicap_lock_stream
Description: unicap - The uniform API for image acquisition devices
Keywords: UniCap, linux, v4l, video4linux, image, capture, acquisition, FireWire, 1394, usb, camera, grabber, converter, video-to-firewire, video-to-usb, dfg1394

unicap unicap_open unicap_close unicap_clone_handle unicap_reenumerate_devices unicap_enumerate_devices unicap_get_device unicap_reenumerate_formats unicap_enumerate_formats unicap_set_format unicap_get_format unicap_reenumerate_properties unicap_enumerate_property unicap_get_property unicap_set_property unicap_start_capture unicap_stop_capture unicap_queue_buffer unicap_dequeue_buffer unicap_wait_buffer unicap_poll_buffer unicap_void_device unicap_void_format unicap_void_property unicap_lock_stream unicap_unlock_stream unicap_lock_properties unicap_unlock_properties unicap_device_t unicap_property_t unicap_format_t unicap_data_buffer_t unicap_rect_t unicap_buffer_type_t unicap_property_range_t unicap_property_menu_t unicap_property_value_list_t unicap_property_type_enum_t unicap_handle_t unicapgtk |
unicap_status_t | unicap_lock_stream ( | unicap_handle_t handle );
Reserves exclusive access to the image stream of this device. When a device stream is locked, stream functions like unicap_queue_buffer and unicap_set_format may only be called with the handle that gathered the lock. The lock works for all processes on the system but it is not guarranteed to work for processes running on remote computers ( eg. a lock aquired for a FireWire camera on one system is not seen by an application running on another computer on the same FireWire bus ).
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| © 2006 Arne Caspari. All rights reserved.