amfh265enc

amfh265enc element encodes raw video stream into compressed H.265 bitstream via AMD AMF API.

Example launch line

gst-launch-1.0 videotestsrc num-buffers=100 ! amfh265enc ! h265parse ! mp4mux ! filesink location=encoded.mp4

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoEncoder
                    ╰──GstAmfEncoder
                        ╰──amfh265enc

Implemented interfaces

Factory details

Authors: – Seungha Yang

Classification: – Codec/Encoder/Video/Hardware

Rank – primary

Plugin – amfcodec

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw(memory:D3D11Memory):
         format: NV12
          width: [ 128, 4096 ]
         height: [ 128, 4096 ]
video/x-raw:
         format: NV12
          width: [ 128, 4096 ]
         height: [ 128, 4096 ]

Presence – always

Direction – sink

Object type – GstPad

src

video/x-h265:
          width: [ 128, 4096 ]
         height: [ 128, 4096 ]
        profile: main
  stream-format: byte-stream
      alignment: au

Presence – always

Direction – src

Object type – GstPad

Properties

adapter-luid 

“adapter-luid” gint64

DXGI Adapter LUID (Locally Unique Identifier) of associated GPU

Flags : Read

Default value : 0

aud 

“aud” gboolean

Use AU (Access Unit) delimiter

Flags : Read / Write

Default value : true

bitrate 

“bitrate” guint

Target bitrate in kbit/sec (0: USAGE default)

Flags : Read / Write

Default value : 0

gop-size 

“gop-size” guint

Number of pictures within a GOP

Flags : Read / Write

Default value : 30

max-bitrate 

“max-bitrate” guint

Maximum bitrate in kbit/sec (0: USAGE default)

Flags : Read / Write

Default value : 0

max-qp-i 

“max-qp-i” gint

Maximum allowed QP value for I frames (-1: USAGE default)

Flags : Read / Write

Default value : -1

max-qp-p 

“max-qp-p” gint

Maximum allowed QP value for P frames (-1: USAGE default)

Flags : Read / Write

Default value : -1

min-qp-i 

“min-qp-i” gint

Minimum allowed QP value for I frames (-1: USAGE default)

Flags : Read / Write

Default value : -1

min-qp-p 

“min-qp-p” gint

Minimum allowed QP value for P frames (-1: USAGE default)

Flags : Read / Write

Default value : -1

preset 

“preset” Amf-h265enc-preset *

Preset

Flags : Read / Write

Default value : default (-1)

qp-i 

“qp-i” guint

Constant QP for I frames

Flags : Read / Write

Default value : 26

qp-p 

“qp-p” guint

Constant QP for P frames

Flags : Read / Write

Default value : 26

rate-control 

“rate-control” Amf-h265enc-rate-control *

Rate Control Method

Flags : Read / Write

Default value : default (-1)

ref-frames 

“ref-frames” guint

Number of reference frames

Flags : Read / Write

Default value : 1

usage 

“usage” Amf-h265enc-usage *

Target usage

Flags : Read / Write

Default value : transcoding (0)

Named constants

Amf-h265enc-preset

Encoding quality presets

Members

default (-1) – Default, depends on USAGE
quality (0) – Quality
balanced (5) – Balanced
speed (10) – Speed

Amf-h265enc-rate-control

Rate control methods

Members

default (-1) – Default, depends on Usage
cqp (0) – Constant QP
lcvbr (1) – Latency Constrained VBR
vbr (2) – Peak Constrained VBR
cbr (3) – Constant Bitrate

Amf-h265enc-usage

Encoder usages

Members

transcoding (0) – Transcoding
ultra-low-latency (1) – Ultra Low Latency
low-latency (2) – Low Latency
webcam (3) – Webcam

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