uvch264src
A camera bin src element that wraps v4l2src and implements UVC H264 Extension Units (XU) to control the H264 encoder in the camera
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstBin ╰──GstBaseCameraSrc ╰──uvch264src
Implemented interfaces
Factory details
Authors: – Youness Alaoui
Classification: – Source/Video
Rank – none
Plugin – uvch264
Package – GStreamer Bad Plug-ins
Pad Templates
vfsrc
The video src pad template
video/x-raw:
format: { A444_16LE, A444_16BE, Y416_LE, AYUV64, RGBA64_LE, ARGB64, ARGB64_LE, BGRA64_LE, ABGR64_LE, Y416_BE, RGBA64_BE, ARGB64_BE, BGRA64_BE, ABGR64_BE, A422_16LE, A422_16BE, A420_16LE, A420_16BE, A444_12LE, GBRA_12LE, A444_12BE, GBRA_12BE, Y412_LE, Y412_BE, A422_12LE, A422_12BE, A420_12LE, A420_12BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, BGR10A2_LE, RGB10A2_LE, Y410, A444, GBRA, AYUV, VUYA, RGBA, RBGA, ARGB, BGRA, ABGR, A422, A420, AV12, Y444_16LE, GBR_16LE, Y444_16BE, GBR_16BE, Y216_LE, Y216_BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, UYVP, v210, I420_10LE, I420_10BE, P010_10LE, NV12_10LE40, NV12_10LE32, P010_10BE, MT2110R, MT2110T, NV12_10BE_8L128, NV12_10LE40_4L4, Y444, BGRP, GBR, RGBP, NV24, v308, IYU2, RGBx, xRGB, BGRx, xBGR, RGB, BGR, Y42B, NV16, NV61, YUY2, YVYU, UYVY, VYUY, I420, YV12, NV12, NV21, NV12_16L32S, NV12_32L32, NV12_4L4, NV12_64Z32, NV12_8L128, Y41B, IYU1, YUV9, YVU9, BGR16, RGB16, BGR15, RGB15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE16, GRAY10_LE32, GRAY8 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
image/jpeg:
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
vidsrc
video/x-raw:
format: { A444_16LE, A444_16BE, Y416_LE, AYUV64, RGBA64_LE, ARGB64, ARGB64_LE, BGRA64_LE, ABGR64_LE, Y416_BE, RGBA64_BE, ARGB64_BE, BGRA64_BE, ABGR64_BE, A422_16LE, A422_16BE, A420_16LE, A420_16BE, A444_12LE, GBRA_12LE, A444_12BE, GBRA_12BE, Y412_LE, Y412_BE, A422_12LE, A422_12BE, A420_12LE, A420_12BE, A444_10LE, GBRA_10LE, A444_10BE, GBRA_10BE, A422_10LE, A422_10BE, A420_10LE, A420_10BE, BGR10A2_LE, RGB10A2_LE, Y410, A444, GBRA, AYUV, VUYA, RGBA, RBGA, ARGB, BGRA, ABGR, A422, A420, AV12, Y444_16LE, GBR_16LE, Y444_16BE, GBR_16BE, Y216_LE, Y216_BE, v216, P016_LE, P016_BE, Y444_12LE, GBR_12LE, Y444_12BE, GBR_12BE, I422_12LE, I422_12BE, Y212_LE, Y212_BE, I420_12LE, I420_12BE, P012_LE, P012_BE, Y444_10LE, GBR_10LE, Y444_10BE, GBR_10BE, r210, I422_10LE, I422_10BE, NV16_10LE32, Y210, UYVP, v210, I420_10LE, I420_10BE, P010_10LE, NV12_10LE40, NV12_10LE32, P010_10BE, MT2110R, MT2110T, NV12_10BE_8L128, NV12_10LE40_4L4, Y444, BGRP, GBR, RGBP, NV24, v308, IYU2, RGBx, xRGB, BGRx, xBGR, RGB, BGR, Y42B, NV16, NV61, YUY2, YVYU, UYVY, VYUY, I420, YV12, NV12, NV21, NV12_16L32S, NV12_32L32, NV12_4L4, NV12_64Z32, NV12_8L128, Y41B, IYU1, YUV9, YVU9, BGR16, RGB16, BGR15, RGB15, RGB8P, GRAY16_LE, GRAY16_BE, GRAY10_LE16, GRAY10_LE32, GRAY8 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
image/jpeg:
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-h264:
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
stream-format: { (string)byte-stream, (string)avc }
alignment: au
profile: { (string)high, (string)main, (string)baseline, (string)constrained-baseline }
Action Signals
get-boolean-setting
g_signal_emit_by_name (param_0, "get-boolean-setting", arg0, arg1, arg2, &ret);
ret = param_0.emit ("get-boolean-setting", arg0, arg1, arg2)
let ret = param_0.emit ("get-boolean-setting", arg0, arg1, arg2);
Parameters:
get-enum-setting
g_signal_emit_by_name (param_0, "get-enum-setting", arg0, arg1, arg2, &ret);
ret = param_0.emit ("get-enum-setting", arg0, arg1, arg2)
let ret = param_0.emit ("get-enum-setting", arg0, arg1, arg2);
Parameters:
get-int-setting
g_signal_emit_by_name (param_0, "get-int-setting", arg0, arg1, arg2, arg3, &ret);
ret = param_0.emit ("get-int-setting", arg0, arg1, arg2, arg3)
let ret = param_0.emit ("get-int-setting", arg0, arg1, arg2, arg3);
Parameters:
Properties
average-bitrate
“average-bitrate” guint
The average bitrate in bits/second (dynamic control)
Flags : Read / Write
Default value : 3000000
colorspace-name
“colorspace-name” gchararray
The name of the colorspace element
Flags : Read / Write / Construct
Default value : videoconvert
enable-sei
“enable-sei” gboolean
Enable SEI picture timing (static control)
Flags : Read / Write
Default value : false
entropy
“entropy” Uvc-h264entropy *
Entropy (static control)
Flags : Read / Write
Default value : cavlc (0)
fixed-framerate
“fixed-framerate” gboolean
Fixed framerate (static & dynamic control)
Flags : Read / Write
Default value : false
iframe-period
“iframe-period” guint
Time between IDR frames in milliseconds (static control)
Flags : Read / Write
Default value : 10000
initial-bitrate
“initial-bitrate” guint
Initial bitrate in bits/second (static control)
Flags : Read / Write
Default value : 3000000
jpeg-decoder-name
“jpeg-decoder-name” gchararray
The name of the jpeg decoder element
Flags : Read / Write / Construct
Default value : jpegdec
leaky-bucket-size
“leaky-bucket-size” guint
Size of the leaky bucket size in milliseconds (static control)
Flags : Read / Write
Default value : 1000
ltr-buffer-size
“ltr-buffer-size” gint
Total number of Long-Term Reference frames (dynamic control)
Flags : Read / Write
Default value : 0
ltr-encoder-control
“ltr-encoder-control” gint
Number of LTR frames the device can control (dynamic control)
Flags : Read / Write
Default value : 0
max-bframe-qp
“max-bframe-qp” gint
The minimum Quantization step size for B frames (dynamic control)
Flags : Read / Write
Default value : 46
max-iframe-qp
“max-iframe-qp” gint
The minimum Quantization step size for I frames (dynamic control)
Flags : Read / Write
Default value : 46
max-mbps
“max-mbps” guint
The number of macroblocks per second for the maximum processing rate
Flags : Read
Default value : 0
max-pframe-qp
“max-pframe-qp” gint
The minimum Quantization step size for P frames (dynamic control)
Flags : Read / Write
Default value : 46
min-bframe-qp
“min-bframe-qp” gint
The minimum Quantization step size for B frames (dynamic control)
Flags : Read / Write
Default value : 10
min-iframe-qp
“min-iframe-qp” gint
The minimum Quantization step size for I frames (dynamic control)
Flags : Read / Write
Default value : 10
min-pframe-qp
“min-pframe-qp” gint
The minimum Quantization step size for P frames (dynamic control)
Flags : Read / Write
Default value : 10
num-buffers
“num-buffers” gint
Number of buffers to output before sending EOS (-1 = unlimited)
Flags : Read / Write
Default value : -1
num-clock-samples
“num-clock-samples” gint
Number of clock samples to gather for the PTS synchronization (-1 = unlimited)
Flags : Read / Write / Construct
Default value : 0
num-reorder-frames
“num-reorder-frames” guint
Number of B frames between the references frames (static control)
Flags : Read / Write
Default value : 0
peak-bitrate
“peak-bitrate” guint
The peak bitrate in bits/second (dynamic control)
Flags : Read / Write
Default value : 3000000
preview-flipped
“preview-flipped” gboolean
Horizontal flipped image for non H.264 streams (static control)
Flags : Read / Write
Default value : false
rate-control
“rate-control” Uvc-h264rate-control *
Rate control mode (static & dynamic control)
Flags : Read / Write
Default value : cbr (1)
slice-mode
“slice-mode” Uvc-h264slice-mode *
Defines the unit of the slice-units property (static control)
Flags : Read / Write
Default value : slice/frame (3)
usage-type
“usage-type” Uvc-h264usage-type *
The usage type (static control)
Flags : Read / Write
Default value : realtime (1)
Named constants
Uvc-h264entropy
Members
cavlc (0) – CAVLC
cabac (1) – CABAC
Uvc-h264rate-control
Members
cbr (1) – Constant bit rate
vbr (2) – Variable bit rate
qp (3) – Constant QP
Uvc-h264slice-mode
Members
ignored (0) – Ignored
bits/slice (1) – Bits per slice
MBs/slice (2) – MBs per Slice
slice/frame (3) – Slice Per Frame
Uvc-h264usage-type
Members
realtime (1) – Realtime (video conferencing)
broadcast (2) – Broadcast
storage (3) – Storage
ucconfig0 (4) – UCConfig 0
ucconfig1 (5) – UCConfig 1
ucconfig2q (6) – UCConfig 2Q
ucconfig2s (7) – UCConfig 2S
ucconfig3 (8) – UCConfig 3
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