" -C, --get-ctrl=<ctrl>[,<ctrl>...]\n"
" get the value of the controls [VIDIOC_G_EXT_CTRLS]\n"
" -c, --set-ctrl=<ctrl>=<val>[,<ctrl>=<val>...]\n"
- " set the controls to the values specified [VIDIOC_S_EXT_CTRLS]\n"
+ " set the value of the controls [VIDIOC_S_EXT_CTRLS]\n"
" -D, --info show driver info [VIDIOC_QUERYCAP]\n"
" -d, --device=<dev> use device <dev> instead of /dev/video0\n"
" if <dev> is a single digit, then /dev/video<dev> is used\n"
" -h, --help display this help message\n"
" -l, --list-ctrls display all controls and their values [VIDIOC_QUERYCTRL]\n"
" -L, --list-ctrls-menus\n"
- " display all controls, their values and the menus [VIDIOC_QUERYMENU]\n"
- " -w, --wrapper use the libv4l2 wrapper library.\n"
+ " display all controls and their menus [VIDIOC_QUERYMENU]\n"
+ " -w, --wrapper use the libv4l2 wrapper library.\n"
" --list-devices list all v4l devices\n"
" --log-status log the board status in the kernel log [VIDIOC_LOG_STATUS]\n"
" --get-priority query the current access priority [VIDIOC_G_PRIORITY]\n"
" set the new access priority [VIDIOC_S_PRIORITY]\n"
" <prio> is 1 (background), 2 (interactive) or 3 (record)\n"
" --silent only set the result code, do not print any messages\n"
- " --sleep=<secs> sleep for <secs> seconds, call QUERYCAP and close the file handle\n"
+ " --sleep=<secs> sleep <secs>, call QUERYCAP and close the file handle\n"
" --verbose turn on verbose ioctl status reporting\n"
);
}
" perform a hardware frequency seek [VIDIOC_S_HW_FREQ_SEEK]\n"
" dir is 0 (seek downward) or 1 (seek upward)\n"
" wrap is 0 (do not wrap around) or 1 (wrap around)\n"
- " spacing is 0 (use default seek resolution) or sets the seek resolution\n",
+ " spacing sets the seek resolution (use 0 for default)\n",
tcap2bands(-1).c_str());
}
" query the video standard [VIDIOC_G_STD]\n"
" -s, --set-standard=<num>\n"
" set the video standard to <num> [VIDIOC_S_STD]\n"
- " <num> can be a numerical v4l2_std value, or it can be one of:\n"
- " pal-X (X = B/G/H/N/Nc/I/D/K/M/60) or just 'pal' (V4L2_STD_PAL)\n"
- " ntsc-X (X = M/J/K) or just 'ntsc' (V4L2_STD_NTSC)\n"
- " secam-X (X = B/G/H/D/K/L/Lc) or just 'secam' (V4L2_STD_SECAM)\n"
+ " <num> a numerical v4l2_std value, or one of:\n"
+ " pal or pal-X (X = B/G/H/N/Nc/I/D/K/M/60) (V4L2_STD_PAL)\n"
+ " ntsc or ntsc-X (X = M/J/K) (V4L2_STD_NTSC)\n"
+ " secam or secam-X (X = B/G/H/D/K/L/Lc) (V4L2_STD_SECAM)\n"
" --get-detected-standard\n"
" display detected input video standard [VIDIOC_QUERYSTD]\n"
- " --list-dv-presets list supported digital video presets [VIDIOC_ENUM_DV_PRESETS]\n"
+ " --list-dv-presets list supported dv presets [VIDIOC_ENUM_DV_PRESETS]\n"
" --set-dv-preset=<num>\n"
" set the digital video preset to <num> [VIDIOC_S_DV_PRESET]\n"
" --get-dv-preset query the digital video preset in use [VIDIOC_G_DV_PRESET]\n"
- " --query-dv-preset query the detected digital video preset [VIDIOC_QUERY_DV_PRESET]\n"
- " --list-dv-timings list the standard supported digital video timings [VIDIOC_ENUM_DV_TIMINGS]\n"
+ " --query-dv-preset query the detected dv preset [VIDIOC_QUERY_DV_PRESET]\n"
+ " --list-dv-timings list supp. standard dv timings [VIDIOC_ENUM_DV_TIMINGS]\n"
" --set-dv-bt-timings\n"
" no arguments: use the output of VIDIOC_QUERY_DV_PRESET\n"
- " index=<index>: use the index as provided by --list-dv-presets\n"
- " or give a fully specified timings:\n"
+ " index=<index>: use the index as provided by\n"
+ " --list-dv-presets, or give a fully specified timings:\n"
" width=<width>,height=<height>,interlaced=<0/1>,\n"
" polarities=<polarities mask>,pixelclock=<pixelclock Hz>,\n"
" hfp=<horizontal front porch>,hs=<horizontal sync>,\n"
" il_vfp=<vertical front porch for bottom field>,\n"
" il_vs=<vertical sync for bottom field>,\n"
" il_vbp=<vertical back porch for bottom field>,\n"
- " set the digital video timings according to the BT 656/1120 standard [VIDIOC_S_DV_TIMINGS]\n"
+ " set the digital video timings according to the BT 656/1120\n"
+ " standard [VIDIOC_S_DV_TIMINGS]\n"
" --get-dv-timings get the digital video timings in use [VIDIOC_G_DV_TIMINGS]\n"
- " --query-dv-timings query the detected digital video timings [VIDIOC_QUERY_DV_TIMINGS]\n"
+ " --query-dv-timings query the detected dv timings [VIDIOC_QUERY_DV_TIMINGS]\n"
" --get-dv-timings-cap\n"
- " get the digital video timings capabilities [VIDIOC_DV_TIMINGS_CAP]\n"
+ " get the dv timings capabilities [VIDIOC_DV_TIMINGS_CAP]\n"
);
}
printf("\nVideo Capture Formats options:\n"
" --list-formats display supported video formats [VIDIOC_ENUM_FMT]\n"
" --list-formats-mplane\n"
- " display supported video multi-planar formats [VIDIOC_ENUM_FMT]\n"
+ " display supported video multi-planar formats\n"
+ " [VIDIOC_ENUM_FMT]\n"
" --list-formats-ext display supported video formats including frame sizes\n"
" and intervals\n"
" --list-formats-ext-mplane\n"
" pixelformat is either the format index as reported by\n"
" --list-formats, or the fourcc value as a string\n"
" --get-fmt-video-mplane\n"
- " query the video capture format through the multi-planar API [VIDIOC_G_FMT]\n"
+ " query the video capture format through the multi-planar API\n"
+ " [VIDIOC_G_FMT]\n"
" --set-fmt-video-mplane\n"
" --try-fmt-video-mplane=width=<w>,height=<h>,pixelformat=<f>\n"
- " set/try the video capture format using the multi-planar API [VIDIOC_S/TRY_FMT]\n"
+ " set/try the video capture format using the multi-planar API\n"
+ " [VIDIOC_S/TRY_FMT]\n"
" pixelformat is either the format index as reported by\n"
" --list-formats-mplane, or the fourcc value as a string\n"
);
" pixelformat is either the format index as reported by\n"
" --list-formats-out, or the fourcc value as a string\n"
" --list-formats-out-mplane\n"
- " display supported video output multi-planar formats [VIDIOC_ENUM_FMT]\n"
+ " display supported video output multi-planar formats\n"
+ " [VIDIOC_ENUM_FMT]\n"
" --get-fmt-video-out-mplane\n"
- " query the video output format using the multi-planar API [VIDIOC_G_FMT]\n"
+ " query the video output format using the multi-planar API\n"
+ " [VIDIOC_G_FMT]\n"
" --set-fmt-video-out-mplane\n"
" --try-fmt-video-out-mplane=width=<w>,height=<h>,pixelformat=<f>\n"
- " set/try the video output format with the multi-planar API [VIDIOC_S/TRY_FMT]\n"
+ " set/try the video output format with the multi-planar API\n"
+ " [VIDIOC_S/TRY_FMT]\n"
" pixelformat is either the format index as reported by\n"
" --list-formats-out-mplane, or the fourcc value as a string\n"
);
" --set-fmt-output-overlay\n"
" --try-fmt-output-overlay=chromakey=<key>,global_alpha=<alpha>,\n"
" top=<t>,left=<l>,width=<w>,height=<h>,field=<f>\n"
- " set/try the video or video output overlay format [VIDIOC_S/TRY_FMT]\n"
- " <f> can be one of:\n"
- " any, none, top, bottom, interlaced, seq_tb, seq_bt, alternate,\n"
- " interlaced_tb, interlaced_bt\n"
+ " set/try the video or video output overlay format\n"
+ " [VIDIOC_S/TRY_FMT], <f> can be one of:\n"
+ " any, none, top, bottom, interlaced, seq_tb, seq_bt,\n"
+ " alternate, interlaced_tb, interlaced_bt\n"
" --get-fbuf query the overlay framebuffer data [VIDIOC_G_FBUF]\n"
- " --set-fbuf=chromakey=<0/1>,global_alpha=<0/1>,local_alpha=<0/1>,local_inv_alpha=<0/1>\n"
+ " --set-fbuf=chromakey=<b>,global_alpha=<b>,local_alpha=<b>,local_inv_alpha=<b>\n"
" set the overlay framebuffer [VIDIOC_S_FBUF]\n"
+ " b = 0 or 1\n"
);
}
{
printf("\nVBI Formats options:\n"
" --get-sliced-vbi-cap\n"
- " query the sliced VBI capture capabilities [VIDIOC_G_SLICED_VBI_CAP]\n"
+ " query the sliced VBI capture capabilities\n"
+ " [VIDIOC_G_SLICED_VBI_CAP]\n"
" --get-sliced-vbi-out-cap\n"
- " query the sliced VBI output capabilities [VIDIOC_G_SLICED_VBI_CAP]\n"
+ " query the sliced VBI output capabilities\n"
+ " [VIDIOC_G_SLICED_VBI_CAP]\n"
" -B, --get-fmt-sliced-vbi\n"
" query the sliced VBI capture format [VIDIOC_G_FMT]\n"
" --get-fmt-sliced-vbi-out\n"
" --try-fmt-sliced-vbi\n"
" --set-fmt-sliced-vbi-out\n"
" --try-fmt-sliced-vbi-out=<mode>\n"
- " set/try the sliced VBI capture/output format to <mode> [VIDIOC_S/TRY_FMT]\n"
- " <mode> is a comma separated list of:\n"
- " off: turn off sliced VBI (cannot be combined with other modes)\n"
+ " set/try the sliced VBI capture/output format to <mode>\n"
+ " [VIDIOC_S/TRY_FMT], <mode> is a comma separated list of:\n"
+ " off: turn off sliced VBI (cannot be combined with\n"
+ " other modes)\n"
" teletext: teletext (PAL/SECAM)\n"
" cc: closed caption (NTSC)\n"
" wss: widescreen signal (PAL/SECAM)\n"
" --set-crop=top=<x>,left=<y>,width=<w>,height=<h>\n"
" set the video capture crop window [VIDIOC_S_CROP]\n"
" --get-cropcap-output\n"
- " query the crop capabilities for video output [VIDIOC_CROPCAP]\n"
+ " query crop capabilities for video output [VIDIOC_CROPCAP]\n"
" --get-crop-output query the video output crop window [VIDIOC_G_CROP]\n"
" --set-crop-output=top=<x>,left=<y>,width=<w>,height=<h>\n"
" set the video output crop window [VIDIOC_S_CROP]\n"
" --get-cropcap-overlay\n"
- " query the crop capabilities for video overlay [VIDIOC_CROPCAP]\n"
+ " query crop capabilities for video overlay [VIDIOC_CROPCAP]\n"
" --get-crop-overlay query the video overlay crop window [VIDIOC_G_CROP]\n"
" --set-crop-overlay=top=<x>,left=<y>,width=<w>,height=<h>\n"
" set the video overlay crop window [VIDIOC_S_CROP]\n"
" --get-cropcap-output-overlay\n"
- " query the crop capabilities for video output overlays [VIDIOC_CROPCAP]\n"
+ " query the crop capabilities for video output overlays\n"
+ " [VIDIOC_CROPCAP]\n"
" --get-crop-output-overlay\n"
" query the video output overlay crop window [VIDIOC_G_CROP]\n"
" --set-crop-output-overlay=top=<x>,left=<y>,width=<w>,height=<h>\n"
" --get-jpeg-comp query the JPEG compression [VIDIOC_G_JPEGCOMP]\n"
" --set-jpeg-comp=quality=<q>,markers=<markers>,comment=<c>,app<n>=<a>\n"
" set the JPEG compression [VIDIOC_S_JPEGCOMP]\n"
- " <n> is the app segment: 0-9
or a-f, <a> is the actual string.\n"
+ " <n> is the app segment: 0-9
/a-f, <a> is the actual string.\n"
" <markers> is a colon separated list of:\n"
" dht: Define Huffman Tables\n"
" dqt: Define Quantization Tables\n"
projects / platform / upstream / v4l-utils.git / commitdiff