Lines Matching +full:send +full:- +full:empty

1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
13 VIDIOC_ENCODER_CMD - VIDIOC_TRY_ENCODER_CMD - Execute an encoder command
38 These ioctls control an audio/video (usually MPEG-) encoder.
43 To send a command applications must initialize all fields of a struct
52 the remaining data buffered by the driver. When the buffer is empty,
73 .. flat-table:: struct v4l2_encoder_cmd
74     :header-rows:  0
75     :stub-columns: 0
78     * - __u32
79       - ``cmd``
80       - The encoder command, see :ref:`encoder-cmds`.
81     * - __u32
82       - ``flags``
83       - Flags to go with the command, see :ref:`encoder-flags`. If no
86     * - __u32
87       - ``data``\ [8]
88       - Reserved for future extensions. Drivers and applications must set
94 .. _encoder-cmds:
96 .. flat-table:: Encoder Commands
97     :header-rows:  0
98     :stub-columns: 0
101     * - ``V4L2_ENC_CMD_START``
102       - 0
103       - Start the encoder. When the encoder is already running or paused,
111     * - ``V4L2_ENC_CMD_STOP``
112       - 1
113       - Stop the encoder. When the ``V4L2_ENC_CMD_STOP_AT_GOP_END`` flag
123     * - ``V4L2_ENC_CMD_PAUSE``
124       - 2
125       - Pause the encoder. When the encoder has not been started yet, the
129     * - ``V4L2_ENC_CMD_RESUME``
130       - 3
131       - Resume encoding after a PAUSE command. When the encoder has not
138 .. _encoder-flags:
140 .. flat-table:: Encoder Command Flags
141     :header-rows:  0
142     :stub-columns: 0
145     * - ``V4L2_ENC_CMD_STOP_AT_GOP_END``
146       - 0x0001
147       - Stop encoding at the end of the current *Group Of Pictures*,
155 On success 0 is returned, on error -1 and the ``errno`` variable is set
157 :ref:`Generic Error Codes <gen-errors>` chapter.