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/dports/multimedia/libv4l/linux-5.13-rc2/Documentation/userspace-api/media/v4l/
H A Dvidioc-qbuf.rst7 ioctl VIDIOC_QBUF, VIDIOC_DQBUF
13 VIDIOC_QBUF - VIDIOC_DQBUF - Exchange a buffer with the driver
22 .. c:macro:: VIDIOC_DQBUF
24 ``int ioctl(int fd, VIDIOC_DQBUF, struct v4l2_buffer *argp)``
123 Applications call the ``VIDIOC_DQBUF`` ioctl to dequeue a filled
127 ``VIDIOC_DQBUF`` is called with a pointer to this structure the driver
143 By default ``VIDIOC_DQBUF`` blocks when no buffer is in the outgoing
145 :c:func:`open()` function, ``VIDIOC_DQBUF`` returns
170 ``VIDIOC_DQBUF`` failed due to an internal error. Can also indicate
184 ``VIDIOC_DQBUF`` returns this on an empty capture queue for mem2mem
H A Ddmabuf.rst122 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. The driver can unlock the
136 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
139 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
159 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_STREAMON
H A Duserp.rst61 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. The driver can unlock the
80 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
83 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
103 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_STREAMON <VIDIOC_STREAMON>`
H A Dbuffer.rst18 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. In the multi-planar API,
172 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, then it is set by the
475 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called. Set by the
488 ``VIDIOC_DQBUF`` always cleared.
496 calling the ``VIDIOC_QBUF`` or ``VIDIOC_DQBUF`` it is always
509 normally. Drivers set this flag when the ``VIDIOC_DQBUF`` ioctl is
520 - Drivers set or clear this flag when calling the ``VIDIOC_DQBUF``
548 when the ``VIDIOC_DQBUF`` ioctl is called. Applications can set
560 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called.
604 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called. Due to
[all …]
H A Dfunc-select.rst53 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. When buffers are already in
63 or ``writefds``, but subsequent :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
H A Dcapture.c.rst115 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
126 errno_exit("VIDIOC_DQBUF");
144 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
155 errno_exit("VIDIOC_DQBUF");
H A Dmmap.rst235 :ref:`VIVIOC_QBUF <VIDIOC_QBUF>` and :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
239 buffers can be dequeued. By default :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
242 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
259 <VIDIOC_QUERYBUF>`, :ref:`VIDIOC_QBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_DQBUF
/dports/multimedia/v4l-utils/linux-5.13-rc2/Documentation/userspace-api/media/v4l/
H A Dvidioc-qbuf.rst7 ioctl VIDIOC_QBUF, VIDIOC_DQBUF
13 VIDIOC_QBUF - VIDIOC_DQBUF - Exchange a buffer with the driver
22 .. c:macro:: VIDIOC_DQBUF
24 ``int ioctl(int fd, VIDIOC_DQBUF, struct v4l2_buffer *argp)``
123 Applications call the ``VIDIOC_DQBUF`` ioctl to dequeue a filled
127 ``VIDIOC_DQBUF`` is called with a pointer to this structure the driver
143 By default ``VIDIOC_DQBUF`` blocks when no buffer is in the outgoing
145 :c:func:`open()` function, ``VIDIOC_DQBUF`` returns
170 ``VIDIOC_DQBUF`` failed due to an internal error. Can also indicate
184 ``VIDIOC_DQBUF`` returns this on an empty capture queue for mem2mem
H A Duserp.rst61 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. The driver can unlock the
80 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
83 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
103 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_STREAMON <VIDIOC_STREAMON>`
H A Ddmabuf.rst122 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. The driver can unlock the
136 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
139 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
159 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_STREAMON
H A Dbuffer.rst18 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. In the multi-planar API,
172 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, then it is set by the
475 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called. Set by the
488 ``VIDIOC_DQBUF`` always cleared.
496 calling the ``VIDIOC_QBUF`` or ``VIDIOC_DQBUF`` it is always
509 normally. Drivers set this flag when the ``VIDIOC_DQBUF`` ioctl is
520 - Drivers set or clear this flag when calling the ``VIDIOC_DQBUF``
548 when the ``VIDIOC_DQBUF`` ioctl is called. Applications can set
560 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called.
604 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called. Due to
[all …]
H A Dfunc-select.rst53 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. When buffers are already in
63 or ``writefds``, but subsequent :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
H A Dcapture.c.rst115 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
126 errno_exit("VIDIOC_DQBUF");
144 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
155 errno_exit("VIDIOC_DQBUF");
H A Dmmap.rst235 :ref:`VIVIOC_QBUF <VIDIOC_QBUF>` and :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
239 buffers can be dequeued. By default :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
242 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
259 <VIDIOC_QUERYBUF>`, :ref:`VIDIOC_QBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_DQBUF
/dports/multimedia/v4l_compat/linux-5.13-rc2/Documentation/userspace-api/media/v4l/
H A Dvidioc-qbuf.rst7 ioctl VIDIOC_QBUF, VIDIOC_DQBUF
13 VIDIOC_QBUF - VIDIOC_DQBUF - Exchange a buffer with the driver
22 .. c:macro:: VIDIOC_DQBUF
24 ``int ioctl(int fd, VIDIOC_DQBUF, struct v4l2_buffer *argp)``
123 Applications call the ``VIDIOC_DQBUF`` ioctl to dequeue a filled
127 ``VIDIOC_DQBUF`` is called with a pointer to this structure the driver
143 By default ``VIDIOC_DQBUF`` blocks when no buffer is in the outgoing
145 :c:func:`open()` function, ``VIDIOC_DQBUF`` returns
170 ``VIDIOC_DQBUF`` failed due to an internal error. Can also indicate
184 ``VIDIOC_DQBUF`` returns this on an empty capture queue for mem2mem
H A Ddmabuf.rst122 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. The driver can unlock the
136 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
139 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
159 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_STREAMON
H A Duserp.rst61 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. The driver can unlock the
80 more buffers can be dequeued. By default :ref:`VIDIOC_DQBUF
83 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
103 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_STREAMON <VIDIOC_STREAMON>`
H A Dbuffer.rst18 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. In the multi-planar API,
172 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`, then it is set by the
475 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called. Set by the
488 ``VIDIOC_DQBUF`` always cleared.
496 calling the ``VIDIOC_QBUF`` or ``VIDIOC_DQBUF`` it is always
509 normally. Drivers set this flag when the ``VIDIOC_DQBUF`` ioctl is
520 - Drivers set or clear this flag when calling the ``VIDIOC_DQBUF``
548 when the ``VIDIOC_DQBUF`` ioctl is called. Applications can set
560 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called.
604 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl is called. Due to
[all …]
H A Dfunc-select.rst53 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` ioctl. When buffers are already in
63 or ``writefds``, but subsequent :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
H A Dcapture.c.rst115 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
126 errno_exit("VIDIOC_DQBUF");
144 if (-1 == xioctl(fd, VIDIOC_DQBUF, &buf)) {
155 errno_exit("VIDIOC_DQBUF");
H A Dmmap.rst235 :ref:`VIVIOC_QBUF <VIDIOC_QBUF>` and :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
239 buffers can be dequeued. By default :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>`
242 :ref:`VIDIOC_DQBUF <VIDIOC_QBUF>` returns immediately with an ``EAGAIN``
259 <VIDIOC_QUERYBUF>`, :ref:`VIDIOC_QBUF <VIDIOC_QBUF>`, :ref:`VIDIOC_DQBUF
/dports/multimedia/v4l_compat/v4l-utils-4l-utils-1.20.0/lib/libv4l2/
H A Dlog.c55 [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
183 case VIDIOC_DQBUF: { in v4l2_log_ioctl()
/dports/multimedia/libv4l/v4l-utils-4l-utils-1.20.0/lib/libv4l2/
H A Dlog.c55 [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
183 case VIDIOC_DQBUF: { in v4l2_log_ioctl()
/dports/multimedia/v4l-utils/v4l-utils-4l-utils-1.20.0/lib/libv4l2/
H A Dlog.c55 [_IOC_NR(VIDIOC_DQBUF)] = "VIDIOC_DQBUF",
183 case VIDIOC_DQBUF: { in v4l2_log_ioctl()
/dports/multimedia/v4l_compat/v4l-utils-4l-utils-1.20.0/contrib/test/
H A Dv4l2grab.c109 xioctl(bq->fd, VIDIOC_DQBUF, buf); in produce_buffer()
232 xioctl(fd, VIDIOC_DQBUF, &buf); in capture_loop()

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