Lines Matching refs:standard

17 V4L2 defines one bit for each analog video standard currently in use
21 standard, although presenting the user a menu of supported standards is
29 standards also contain sets of one or more standard bits.
32 signals. The first enumerated standard is a set of B and G/PAL, switched
38 To query and select the standard used by the current video input or
41 *received* standard can be sensed with the
47    :ref:`v4l2_std_id <v4l2-std-id>` type (a standard set), *not* an
48    index into the standard enumeration. Drivers must implement all video
49    standard ioctls when the device has one or more video inputs or outputs.
56    video standard, or
58 -  that does not support the video standard formats at all.
68 standard ioctls can be used with the given input or output.
70 Example: Information about the current video standard
76     struct v4l2_standard standard;
87     memset(&standard, 0, sizeof(standard));
88     standard.index = 0;
90     while (0 == ioctl(fd, VIDIOC_ENUMSTD, &standard)) {
91 	if (standard.id & std_id) {
92 	       printf("Current video standard: %s\\n", standard.name);
96 	standard.index++;
102     if (errno == EINVAL || standard.index == 0) {
113     struct v4l2_standard standard;
129     memset(&standard, 0, sizeof(standard));
130     standard.index = 0;
132     while (0 == ioctl(fd, VIDIOC_ENUMSTD, &standard)) {
133 	if (standard.id & input.std)
134 	    printf("%s\\n", standard.name);
136 	standard.index++;
142     if (errno != EINVAL || standard.index == 0) {
147 Example: Selecting a new video standard