d3d12h264enc

Direct3D12 H.264 Video Encoder

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoEncoder
                    ╰──GstD3D12Encoder
                        ╰──d3d12h264enc

Implemented interfaces

Factory details

Authors: – Seungha Yang

Classification: – Codec/Encoder/Video/Hardware

Rank – none

Plugin – d3d12

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw(memory:D3D12Memory):
         format: NV12
          width: [ 16, 4096 ]
         height: [ 16, 4096 ]
 interlace-mode: progressive
video/x-raw:
         format: NV12
          width: [ 16, 4096 ]
         height: [ 16, 4096 ]
 interlace-mode: progressive

Presence – always

Direction – sink

Object type – GstPad

src

video/x-h264:
          width: [ 16, 4096 ]
         height: [ 16, 4096 ]
  stream-format: byte-stream
      alignment: au
        profile: { (string)high, (string)main, (string)constrained-baseline }

Presence – always

Direction – src

Object type – GstPad

Properties

aud 

“aud” gboolean

Use AU delimiter

Flags : Read / Write

Default value : true

bitrate 

“bitrate” guint

Target bitrate in kbits/second. Used for "cbr", "vbr", and "qvbr" rate control

Flags : Read / Write

Default value : 2000

cc-insert 

“cc-insert” D3d12encoder-sei-insert-mode *

Closed Caption insert mode

Flags : Read / Write

Default value : insert (0)

frame-analysis 

“frame-analysis” gboolean

Enable 2 pass encoding if supported by hardware

Flags : Read / Write

Default value : false

gop-size 

“gop-size” guint

Size of GOP (0 = infinite)

Flags : Read / Write

Default value : 60

max-bitrate 

“max-bitrate” guint

Peak bitrate in kbits/second. Used for "vbr", and "qvbr" rate control

Flags : Read / Write

Default value : 4000

qp-b 

“qp-b” guint

Constant QP value for B frames. Used for "cqp" rate control

Flags : Read / Write

Default value : 23

qp-i 

“qp-i” guint

Constant QP value for I frames. Used for "cqp" rate control

Flags : Read / Write

Default value : 23

qp-init 

“qp-init” guint

Initial QP value. Used for "cbr", "vbr", and "qvbr" rate control

Flags : Read / Write

Default value : 0

qp-max 

“qp-max” guint

Maximum QP value for "cbr", "vbr", and "qvbr" rate control. To enable min/max QP setting, "qp-max >= qp-min > 0" condition should be satisfied

Flags : Read / Write

Default value : 0

qp-min 

“qp-min” guint

Minimum QP value for "cbr", "vbr", and "qvbr" rate control. To enable min/max QP setting, "qp-max >= qp-min > 0" condition should be satisfied

Flags : Read / Write

Default value : 0

qp-p 

“qp-p” guint

Constant QP value for P frames. Used for "cqp" rate control

Flags : Read / Write

Default value : 23

qvbr-quality 

“qvbr-quality” guint

Constant quality target value for "qvbr" rate control

Flags : Read / Write

Default value : 23

rate-control 

“rate-control” D3d12encoder-rate-control *

Rate Control Method

Flags : Read / Write

Default value : vbr (3)

rate-control-support 

“rate-control-support” D3d12encoder-rate-control-support *

Supported rate control modes

Flags : Read

Default value : (none)

ref-frames 

“ref-frames” guint

Preferred number of reference frames. Actual number of reference frames can be limited depending on hardware (0 = unspecified)

Flags : Read / Write

Default value : 0

slice-mode 

“slice-mode” D3d12encoder-subregion-layout *

Slice partiton mode

Flags : Read / Write

Default value : full (0)

slice-mode-support 

“slice-mode-support” D3d12encoder-subregion-layout-support *

Supported slice partition modes

Flags : Read

Default value : full

slice-partition 

“slice-partition” guint

Slice partition threshold interpreted depending on "slice-mode". If set zero, full frame encoding will be selected without partitioning regardless of requested "slice-mode"

Flags : Read / Write

Default value : 0

Named constants

D3d12encoder-rate-control

Members

cqp (1) – Constant QP
cbr (2) – Constant bitrate
vbr (3) – Variable bitrate
qvbr (4) – Constant quality variable bitrate

D3d12encoder-rate-control-support

Members

cqp (0x00000002) – Constant QP
cbr (0x00000004) – Constant bitrate
vbr (0x00000008) – Variable bitrate
qvbr (0x00000010) – Constant quality variable bitrate

D3d12encoder-sei-insert-mode

Members

insert (0) – Insert
insert-and-drop (1) – Insert and drop
disabled (2) – Disabled

D3d12encoder-subregion-layout

Members

full (0) – Full frame without partitioning
bytes (1) – Bytes per subregion
coding-units (2) – Coding units (e.g., macroblock) per subregion
rows (3) – Uniform rows per subregion
subregions (4) – Uniform subregions per frame

D3d12encoder-subregion-layout-support

Members

full (0x00000001) – Full frame without partitioning
bytes (0x00000002) – Bytes per subregion
coding-units (0x00000004) – Coding units (e.g., macroblock) per subregion
rows (0x00000008) – Uniform rows (in coding-unit) per subregion
subregions (0x00000010) – Uniform subregions per frame

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