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uvch264src

uvch264src

Properties

guint average-bitrate Read / Write
gchar * colorspace-name Read / Write / Construct
gchar * device Read / Write
gchar * device-name Read
gboolean enable-sei Read / Write
UvcH264Entropy entropy Read / Write
gboolean fixed-framerate Read / Write
guint iframe-period Read / Write
guint initial-bitrate Read / Write
gchar * jpeg-decoder-name Read / Write / Construct
guint leaky-bucket-size Read / Write
guint level-idc Read / Write
gint ltr-buffer-size Read / Write
gint ltr-encoder-control Read / Write
gint max-bframe-qp Read / Write
gint max-iframe-qp Read / Write
guint max-mbps Read
gint max-pframe-qp Read / Write
gint min-bframe-qp Read / Write
gint min-iframe-qp Read / Write
gint min-pframe-qp Read / Write
gint num-buffers Read / Write
gint num-clock-samples Read / Write / Construct
guint num-reorder-frames Read / Write
guint peak-bitrate Read / Write
gboolean preview-flipped Read / Write
UvcH264RateControl rate-control Read / Write
UvcH264SliceMode slice-mode Read / Write
guint slice-units Read / Write
UvcH264UsageType usage-type Read / Write

Types and Values

struct GstUvcH264Src

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstBin
                    ╰── GstBaseCameraSrc
                        ╰── GstUvcH264Src

Implemented Interfaces

GstUvcH264Src implements GstChildProxy.

Description

Synopsis

Element Information

plugin

uvch264

author

Youness Alaoui <youness.alaoui@collabora.co.uk>

class

Source/Video

Element Pads

name

imgsrc

direction

source

presence

always

details

EMPTY

name

vfsrc

direction

source

presence

always

details

video/x-raw, format=(string){ I420, YV12, YUY2, UYVY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, GRAY8, GRAY16_BE, GRAY16_LE, v308, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10BE, I420_10LE, I422_10BE, I422_10LE, Y444_10BE, Y444_10LE, GBR, GBR_10BE, GBR_10LE, NV16, NV24, NV12_64Z32, A420_10BE, A420_10LE, A422_10BE, A422_10LE, A444_10BE, A444_10LE, NV61, P010_10BE, P010_10LE, IYU2, VYUY, GBRA, GBRA_10BE, GBRA_10LE, GBR_12BE, GBR_12LE, GBRA_12BE, GBRA_12LE, I420_12BE, I420_12LE, I422_12BE, I422_12LE, Y444_12BE, Y444_12LE, GRAY10_LE32, NV12_10LE32, NV16_10LE32 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

image/jpeg, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

name

vidsrc

direction

source

presence

always

details

video/x-raw, format=(string){ I420, YV12, YUY2, UYVY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, GRAY8, GRAY16_BE, GRAY16_LE, v308, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10BE, I420_10LE, I422_10BE, I422_10LE, Y444_10BE, Y444_10LE, GBR, GBR_10BE, GBR_10LE, NV16, NV24, NV12_64Z32, A420_10BE, A420_10LE, A422_10BE, A422_10LE, A444_10BE, A444_10LE, NV61, P010_10BE, P010_10LE, IYU2, VYUY, GBRA, GBRA_10BE, GBRA_10LE, GBR_12BE, GBR_12LE, GBRA_12BE, GBRA_12LE, I420_12BE, I420_12LE, I422_12BE, I422_12LE, Y444_12BE, Y444_12LE, GRAY10_LE32, NV12_10LE32, NV16_10LE32 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

image/jpeg, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]

video/x-h264, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], stream-format=(string){ byte-stream, avc }, alignment=(string)au, profile=(string){ high, main, baseline, constrained-baseline }

Functions

Types and Values

struct GstUvcH264Src

struct GstUvcH264Src;

Property Details

The “average-bitrate” property

  “average-bitrate”          guint

The average bitrate in bits/second (dynamic control).

Flags: Read / Write

Default value: 3000000


The “colorspace-name” property

  “colorspace-name”          gchar *

The name of the colorspace element.

Flags: Read / Write / Construct

Default value: "videoconvert"


The “device” property

  “device”                   gchar *

Device location.

Flags: Read / Write

Default value: "/dev/video0"


The “device-name” property

  “device-name”              gchar *

Name of the device.

Flags: Read

Default value: NULL


The “enable-sei” property

  “enable-sei”               gboolean

Enable SEI picture timing (static control).

Flags: Read / Write

Default value: FALSE


The “entropy” property

  “entropy”                  UvcH264Entropy

Entropy (static control).

Flags: Read / Write

Default value: CAVLC


The “fixed-framerate” property

  “fixed-framerate”          gboolean

Fixed framerate (static & dynamic control).

Flags: Read / Write

Default value: FALSE


The “iframe-period” property

  “iframe-period”            guint

Time between IDR frames in milliseconds (static control).

Flags: Read / Write

Allowed values: <= 65535

Default value: 10000


The “initial-bitrate” property

  “initial-bitrate”          guint

Initial bitrate in bits/second (static control).

Flags: Read / Write

Default value: 3000000


The “jpeg-decoder-name” property

  “jpeg-decoder-name”        gchar *

The name of the jpeg decoder element.

Flags: Read / Write / Construct

Default value: "jpegdec"


The “leaky-bucket-size” property

  “leaky-bucket-size”        guint

Size of the leaky bucket size in milliseconds (static control).

Flags: Read / Write

Allowed values: <= 65535

Default value: 1000


The “level-idc” property

  “level-idc”                guint

Level IDC (dynamic control).

Flags: Read / Write

Allowed values: <= 255

Default value: 40


The “ltr-buffer-size” property

  “ltr-buffer-size”          gint

Total number of Long-Term Reference frames (dynamic control).

Flags: Read / Write

Allowed values: [0,255]

Default value: 0


The “ltr-encoder-control” property

  “ltr-encoder-control”      gint

Number of LTR frames the device can control (dynamic control).

Flags: Read / Write

Allowed values: [0,255]

Default value: 0


The “max-bframe-qp” property

  “max-bframe-qp”            gint

The minimum Quantization step size for B frames (dynamic control).

Flags: Read / Write

Allowed values: [-127,127]

Default value: 46


The “max-iframe-qp” property

  “max-iframe-qp”            gint

The minimum Quantization step size for I frames (dynamic control).

Flags: Read / Write

Allowed values: [-127,127]

Default value: 46


The “max-mbps” property

  “max-mbps”                 guint

The number of macroblocks per second for the maximum processing rate.

Flags: Read

Default value: 0


The “max-pframe-qp” property

  “max-pframe-qp”            gint

The minimum Quantization step size for P frames (dynamic control).

Flags: Read / Write

Allowed values: [-127,127]

Default value: 46


The “min-bframe-qp” property

  “min-bframe-qp”            gint

The minimum Quantization step size for B frames (dynamic control).

Flags: Read / Write

Allowed values: [-127,127]

Default value: 10


The “min-iframe-qp” property

  “min-iframe-qp”            gint

The minimum Quantization step size for I frames (dynamic control).

Flags: Read / Write

Allowed values: [-127,127]

Default value: 10


The “min-pframe-qp” property

  “min-pframe-qp”            gint

The minimum Quantization step size for P frames (dynamic control).

Flags: Read / Write

Allowed values: [-127,127]

Default value: 10


The “num-buffers” property

  “num-buffers”              gint

Number of buffers to output before sending EOS (-1 = unlimited).

Flags: Read / Write

Allowed values: >= G_MAXULONG

Default value: -1


The “num-clock-samples” property

  “num-clock-samples”        gint

Number of clock samples to gather for the PTS synchronization (-1 = unlimited).

Flags: Read / Write / Construct

Allowed values: >= 0

Default value: 0


The “num-reorder-frames” property

  “num-reorder-frames”       guint

Number of B frames between the references frames (static control).

Flags: Read / Write

Allowed values: <= 255

Default value: 0


The “peak-bitrate” property

  “peak-bitrate”             guint

The peak bitrate in bits/second (dynamic control).

Flags: Read / Write

Default value: 3000000


The “preview-flipped” property

  “preview-flipped”          gboolean

Horizontal flipped image for non H.264 streams (static control).

Flags: Read / Write

Default value: FALSE


The “rate-control” property

  “rate-control”             UvcH264RateControl

Rate control mode (static & dynamic control).

Flags: Read / Write

Default value: Constant bit rate


The “slice-mode” property

  “slice-mode”               UvcH264SliceMode

Defines the unit of the slice-units property (static control).

Flags: Read / Write

Default value: Slice Per Frame


The “slice-units” property

  “slice-units”              guint

Slice units (static control).

Flags: Read / Write

Allowed values: <= 65535

Default value: 4


The “usage-type” property

  “usage-type”               UvcH264UsageType

The usage type (static control).

Flags: Read / Write

Default value: Realtime (video conferencing)

Signal Details

The “get-boolean-setting” signal

gboolean
user_function (GstUvcH264Src *gstuvch264src,
               gchar         *arg1,
               gpointer       arg2,
               gpointer       arg3,
               gpointer       user_data)

Flags: Action


The “get-enum-setting” signal

gboolean
user_function (GstUvcH264Src *gstuvch264src,
               gchar         *arg1,
               gpointer       arg2,
               gpointer       arg3,
               gpointer       user_data)

Flags: Action


The “get-int-setting” signal

gboolean
user_function (GstUvcH264Src *gstuvch264src,
               gchar         *arg1,
               gpointer       arg2,
               gpointer       arg3,
               gpointer       arg4,
               gpointer       user_data)

Flags: Action

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