amfav1enc
amfav1enc element encodes raw video stream into compressed AV1 bitstream via AMD AMF API.
Example launch line
gst-launch-1.0 videotestsrc num-buffers=100 ! amfav1enc ! av1parse ! webmmux ! filesink location=encoded.webm
Hierarchy
GObject ╰──GInitiallyUnowned ╰──GstObject ╰──GstElement ╰──GstVideoEncoder ╰──GstAmfEncoder ╰──amfav1enc
Implemented interfaces
Factory details
Authors: – Seungha Yang 
Classification: – Codec/Encoder/Video/Hardware
Rank – none
Plugin – amfcodec
Package – GStreamer Bad Plug-ins
Pad Templates
sink
        video/x-raw(memory:D3D11Memory):
         format: { NV12, P010_10LE }
          width: [ 128, 4096 ]
         height: [ 128, 4096 ]
video/x-raw:
         format: { NV12, P010_10LE }
          width: [ 128, 4096 ]
         height: [ 128, 4096 ]
src
        video/x-av1:
          width: [ 128, 4096 ]
         height: [ 128, 4096 ]
        profile: main
  stream-format: obu-stream
      alignment: tu
Properties
adapter-luid
“adapter-luid” gint64
DXGI Adapter LUID (Locally Unique Identifier) of associated GPU
Flags : Read
Default value : 0
bitrate
“bitrate” guint
Target bitrate in kbit/sec (0: USAGE default)
Flags : Read / Write
Default value : 0
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
pa-activity-type
“pa-activity-type” GstAmfEncPAActivityType *
Set the type of activity analysis for pre-analysis
Flags : Read / Write
Default value : y (0)
Since : 1.24
pa-caq-strength
“pa-caq-strength” GstAmfEncPACAQStrength *
Content Adaptive Quantization strength for pre-analysis
Flags : Read / Write
Default value : medium (1)
Since : 1.24
pa-frame-sad
“pa-frame-sad” gboolean
Enable Frame SAD algorithm
Flags : Read / Write
Default value : true
Since : 1.24
pa-hqmb-mode
“pa-hqmb-mode” GstAmfEncPAHQMBMode *
Set the PA high motion quality boost mode
Flags : Read / Write
Default value : none (0)
Since : 1.24
pa-initial-qp
“pa-initial-qp” guint
Pre-analysis initial QP
Flags : Read / Write
Default value : 0
Since : 1.24
pa-lookahead-buffer-depth
“pa-lookahead-buffer-depth” guint
Pre-analysis lookahead buffer depth
Flags : Read / Write
Default value : 0
Since : 1.24
pa-ltr
“pa-ltr” gboolean
Enable long term reference frame management
Flags : Read / Write
Default value : false
Since : 1.24
pa-max-qp
“pa-max-qp” guint
Pre-analysis max QP
Flags : Read / Write
Default value : 35
Since : 1.24
pa-paq-mode
“pa-paq-mode” GstAmfEncPAPAQMode *
Set the perceptual adaptive quantization mode
Flags : Read / Write
Default value : none (0)
Since : 1.24
pa-scene-change-detection
“pa-scene-change-detection” gboolean
Enable scene change detection for pre-analysis
Flags : Read / Write
Default value : true
Since : 1.24
pa-scene-change-detection-sensitivity
“pa-scene-change-detection-sensitivity” GstAmfEncPASceneChangeDetectionSensitivity *
Pre-analysis scene change detection sensitivity
Flags : Read / Write
Default value : medium (1)
Since : 1.24
pa-static-scene-detection
“pa-static-scene-detection” gboolean
Enable static scene detection for pre-analysis
Flags : Read / Write
Default value : false
Since : 1.24
pa-static-scene-detection-sensitivity
“pa-static-scene-detection-sensitivity” GstAmfEncPAStaticSceneDetectionSensitivity *
Pre-analysis static scene detection sensitivity
Flags : Read / Write
Default value : high (2)
Since : 1.24
pa-taq-mode
“pa-taq-mode” GstAmfEncPATAQMode *
Set the temporal adaptive quantization mode
Flags : Read / Write
Default value : none (0)
Since : 1.24
pre-analysis
“pre-analysis” gboolean
Enable the pre-analysis module
Flags : Read / Write
Default value : false
Since : 1.24
pre-encode
“pre-encode” gboolean
Enable pre-encode assisted rate control
Flags : Read / Write
Default value : false
Since : 1.24
rate-control
“rate-control” Amf-av1enc-rate-control *
Rate Control Method
Flags : Read / Write
Default value : default (-1)
smart-access-video
“smart-access-video” gboolean
Enable AMF SmartAccess Video feature
Flags : Read / Write
Default value : false
Since : 1.24
Named constants
Amf-av1enc-preset
Encoding quality presets
Members
default (-1) – Default, depends on USAGE
        high-quality (0) – High quality
        quality (30) – Quality
        balanced (70) – Balanced
        speed (100) – Speed
        Since : 1.22
Amf-av1enc-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
        Since : 1.22
Amf-av1enc-usage
Encoder usages
Members
transcoding (0) – Transcoding
        low-latency (1) – Low Latency
        Since : 1.22
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