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, P010_10LE }
width: [ 128, 4096 ]
height: [ 128, 4096 ]
video/x-raw:
format: { NV12, P010_10LE }
width: [ 128, 4096 ]
height: [ 128, 4096 ]
src
video/x-h265:
width: [ 128, 4096 ]
height: [ 128, 4096 ]
profile: { (string)main, (string)main-10 }
stream-format: byte-stream
alignment: au
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-h265enc-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
GstAmfEncPAActivityType
Determines whether activity analysis is performed on the Luma component only (Y) or on both Luma and Chroma (YUV).
Members
y (0) – Luma (Y) component only
yuv (1) – Luma and Chroma components (YUV)
Since : 1.24
GstAmfEncPACAQStrength
Content Adaptive Quantization strength. Stronger CAQ strength means larger variation in block level QP assignment.
Members
low (0) – Low
medium (1) – Medium
high (2) – High
Since : 1.24
GstAmfEncPAHQMBMode
Sets the PA high motion quality boost (HQMB) mode to help the encoder in motion search.
Members
none (0) – None
auto (1) – Auto
Since : 1.24
GstAmfEncPAPAQMode
Sets the perceptual adaptive quantization mode.
Members
none (0) – None
caq (1) – Content Adaptive Quantization (CAQ) mode
Since : 1.24
GstAmfEncPASceneChangeDetectionSensitivity
Sensitivity of scene change detection. The higher the sensitivity, the more restrictive it is to detect a scene change. This parameter takes effect only when AMF_PA_LOOKAHEAH_BUFFER_DEPTH is set to 0.
Members
low (0) – Low
medium (1) – Medium
high (2) – High
Since : 1.24
GstAmfEncPAStaticSceneDetectionSensitivity
Sensitivity of static scene detection. The higher the sensitivity, the more restrictive it is to detect a static scene.
Members
low (0) – Low
medium (1) – Medium
high (2) – High
Since : 1.24
GstAmfEncPATAQMode
Sets the temporal adaptive quantization mode. MODE_1 is suitable for non-gaming applications whereas MODE_2 is suitable for gaming applications.
Members
none (0) – None
mode1 (1) – Mode_1 is suitable for non-gaming applications
mode2 (2) – Mode_2 is suitable for gaming applications
Since : 1.24
Amf-h265enc-preset
Encoding quality presets
Members
default (-1) – Default, depends on USAGE
quality (0) – Quality
balanced (5) – Balanced
speed (10) – Speed
Since : 1.22
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
Since : 1.22
Amf-h265enc-usage
Encoder usages
Members
transcoding (0) – Transcoding
ultra-low-latency (1) – Ultra Low Latency
low-latency (2) – Low Latency
webcam (3) – Webcam
Since : 1.22
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