| Top | |
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| gchar * | device | Read / Write |
| gchar * | device-name | Read |
| GstV4l2DeviceTypeFlags | flags | Read |
| guint | queue-size | Read / Write |
| gboolean | always-copy | Read / Write |
| gint | device-fd | Read |
| gint | brightness | Read / Write |
| gint | contrast | Read / Write |
| gint | decimate | Read / Write |
| gint | hue | Read / Write |
| gint | saturation | Read / Write |
| V4L2_TV_norms | norm | Read / Write |
| GstV4l2IOMode | io-mode | Read / Write |
| GstStructure * | extra-controls | Read / Write |
| gboolean | force-aspect-ratio | Read / Write |
| gchar * | pixel-aspect-ratio | Read / Write |
GObject ╰── GInitiallyUnowned ╰── GstObject ╰── GstElement ╰── GstBaseSrc ╰── GstPushSrc ╰── GstV4l2Src
GstV4l2Src implements GstURIHandler, GstTuner, GstColorBalance and GstVideoOrientation.
plugin |
video4linux2 |
author |
Edgard Lima <edgard.lima@indt.org.br>, Stefan Kost <ensonic@users.sf.net> |
class |
Source/Video |
name |
src |
direction |
source |
presence |
always |
details |
image/jpeg |
| video/mpeg, mpegversion=(int)4, systemstream=(boolean)false | |
| video/mpeg, mpegversion=(int)2 | |
| video/mpegts, systemstream=(boolean)true | |
| video/x-bayer, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ] | |
| video/x-dv, systemstream=(boolean)true | |
| video/x-h263, variant=(string)itu | |
| video/x-h264, stream-format=(string)byte-stream, alignment=(string)au | |
| video/x-pwc1, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ] | |
| video/x-pwc2, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ] | |
| video/x-raw, format=(string){ RGB15, RGB16, BGR, RGB, BGRx, BGRA, xRGB, ARGB, GRAY8, YVU9, YV12, YUY2, UYVY, Y42B, Y41B, NV12_64Z32, YUV9, I420, YVYU, NV21, NV12 }, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ] | |
| video/x-sonix, width=(int)[ 1, 32768 ], height=(int)[ 1, 32768 ], framerate=(fraction)[ 0/1, 100/1 ] | |
| video/x-vp8 |
“device” property“device” gchar *
Device location.
Flags: Read / Write
Default value: "/dev/video0"
“device-name” property“device-name” gchar *
Name of the device.
Flags: Read
Default value: NULL
“queue-size” property“queue-size” guint
Number of buffers to be enqueud in the driver in streaming mode.
Flags: Read / Write
Allowed values: [1,16]
Default value: 2
“always-copy” property“always-copy” gboolean
If the buffer will or not be used directly from mmap.
Flags: Read / Write
Default value: TRUE
“device-fd” property“device-fd” gint
File descriptor of the device.
Flags: Read
Allowed values: >= G_MAXULONG
Default value: -1
“brightness” property“brightness” gint
Picture brightness, or more precisely, the black level.
Flags: Read / Write
Default value: 0
“contrast” property“contrast” gint
Picture contrast or luma gain.
Flags: Read / Write
Default value: 0
“decimate” property“decimate” gint
Only use every nth frame.
Flags: Read / Write
Allowed values: >= 1
Default value: 1
“saturation” property“saturation” gint
Picture color saturation or chroma gain.
Flags: Read / Write
Default value: 0
“io-mode” property “io-mode” GstV4l2IOMode
I/O mode.
Flags: Read / Write
Default value: GST_V4L2_IO_AUTO
“extra-controls” property“extra-controls” GstStructure *
Extra v4l2 controls (CIDs) for the device.
Flags: Read / Write
“force-aspect-ratio” property“force-aspect-ratio” gboolean
When enabled, the pixel aspect ratio will be enforced.
Flags: Read / Write
Default value: TRUE
“pixel-aspect-ratio” property“pixel-aspect-ratio” gchar *
Overwrite the pixel aspect ratio of the device.
Flags: Read / Write
Default value: "1/1"
“prepare-format” signalvoid user_function (GstV4l2Src *gstv4l2src, gint arg1, GstCaps *arg2, gpointer user_data)
gstv4l2src |
the object which received the signal. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last