Lines Matching full:buffers

19 methods. Buffers (planes) are allocated by the application itself, and
26 No buffers (planes) are allocated beforehand, consequently they are not
27 indexed and cannot be queried like mapped buffers with the
51 :ref:`VIDIOC_QBUF <VIDIOC_QBUF>` ioctl. Although buffers are commonly
60 Filled or displayed buffers are dequeued with the
66 Applications must take care not to free buffers without dequeuing.
67 Firstly, the buffers remain locked for longer, wasting physical memory.
73 buffers, to start capturing and enter the read loop. Here the
76 and enqueue buffers, when enough buffers are stacked up output is
78 buffers it must wait until an empty buffer can be dequeued and reused.
80 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
94    :ref:`VIDIOC_STREAMOFF <VIDIOC_STREAMON>` removes all buffers from
95    both queues and unlocks all buffers as a side effect. Since there is no
99    outputted buffers.
108    We expect that frequently used buffers are typically not swapped out.
113    memory usage drivers can limit the number of buffers locked in
114    advance and recycle the most recently used buffers first. Of course,
115    the pages of empty buffers in the incoming queue need not be saved to
116    disk. Output buffers must be saved on the incoming and outgoing queue