Lines Matching refs:command
13 VIDIOC_DECODER_CMD - VIDIOC_TRY_DECODER_CMD - Execute an decoder command
39 ``VIDIOC_DECODER_CMD`` sends a command to the decoder,
40 ``VIDIOC_TRY_DECODER_CMD`` can be used to try a command without actually
41 executing it. To send a command applications must initialize all fields
46 The ``cmd`` field must contain the command code. Some commands use the
50 call sends an implicit START command to the decoder if it has not been
55 command to the decoder, and all buffered data is discarded. Applies to both
76 - The decoder command, see :ref:`decoder-cmds`.
80 - Flags to go with the command. If no flags are defined for this
81 command, drivers and applications must set this field to zero.
88 ``V4L2_DEC_CMD_START`` command.
114 command.
146 this command will just change the playback speed. That means that
149 ``V4L2_DEC_CMD_RESUME`` for that. This command has one flag:
154 is initiated with the ``V4L2_DEC_CMD_STOP`` command, it must be driven
155 to completion before this command can be invoked. Any attempt to
156 invoke the command while the drain sequence is in progress will trigger
157 an ``EBUSY`` error code. The command may be also used to restart the
164 command does nothing. This command has two flags: if
173 For a device implementing the :ref:`decoder`, the command will initiate
175 arguments are accepted in this case. Any attempt to invoke the command
182 already paused, this command does nothing. This command has one
187 - Resume decoding after a PAUSE command. When the decoder has not
189 the decoder is already running, this command does nothing. No
190 flags are defined for this command.
194 This command is typically used when the application reached the
198 So this command can be used to explicitly flush that final decoded
199 frame. This command does nothing if there are no held capture buffers.
210 progress. It is not allowed to issue another decoder command until it
217 The application sent a PAUSE or RESUME command when the decoder was