Xilinx ZYNQ UltraScale+ MPSoC/GStreamer/Accelerating Image Processing/Accelerated Elements
Xilinx MPSoC's VCU IP is capable of simultaneously encoding and decoding up to 32 streams of H.264 and H.265 codecs, with a maximum bandwidth equivalent to 4K60. 8K encoding/decoding is also supported at a 15 FPS reduced rate mode.
Video Encoding
H.264
The H.264 encoder is available through the omxh264enc GStreamer element.
gst-inspect-1.0 omxh264enc
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root@xilinx-kv260-starterkit-20222:~# gst-inspect-1.0 omxh264enc
Factory Details:
Rank primary + 1 (257)
Long-name OpenMAX H.264 Video Encoder
Klass Codec/Encoder/Video/Hardware
Description Encode H.264 video streams
Author Sebastian Dr?ge <sebastian.droege@collabora.co.uk>
Plugin Details:
Name omx
Description GStreamer OpenMAX Plug-ins
Filename /usr/lib/gstreamer-1.0/libgstomx.so
Version 1.18.5
License LGPL
Source module gst-omx
Source release date 2021-09-08
Binary package GStreamer OpenMAX Plug-ins
Origin URL Unknown package origin
GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstVideoEncoder
+----GstOMXVideoEnc
+----GstOMXH264Enc
+----GstOMXH264Enc-omxh264enc
Implemented Interfaces:
GstPreset
Pad Templates:
SINK template: 'sink'
Availability: Always
Capabilities:
video/x-raw(memory:XLNXLL)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
SRC template: 'src'
Availability: Always
Capabilities:
video/x-h264
width: [ 16, 4096 ]
height: [ 16, 4096 ]
framerate: [ 0/1, 2147483647/1 ]
stream-format: byte-stream
alignment: { (string)au, (string)nal }
Element has no clocking capabilities.
Element has no URI handling capabilities.
Pads:
SINK: 'sink'
Pad Template: 'sink'
SRC: 'src'
Pad Template: 'src'
Element Properties:
aspect-ratio : Display aspect ratio of the video sequence to be written in SPS/VUI
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncAspectRatio" Default: 0, "auto"
(0): auto - 4:3 for SD video,16:9 for HD video,unspecified for unknown format
(1): 1-1 - 1:1 aspect ratio
(2): 4-3 - 4:3 aspect ratio
(3): 16-9 - 16:9 aspect ratio
(4): none - Aspect ratio information is not present in the stream
b-frames : Number of B-frames between two consecutive P-frames
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
constrained-intra-prediction: If enabled, prediction only uses residual data and decoded samples from neighbouring coding blocks coded using intra prediction modes
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
control-rate : Bitrate control method
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncControlRate" Default: -1, "default"
(0): disable - Disable
(1): variable - Variable
(2): constant - Constant
(3): variable-skip-frames - Variable Skip Frames
(4): constant-skip-frames - Constant Skip Frames
(2130706434): capped-variable - Capped Variable
(2130706433): low-latency - Low Latency
(-1): default - Component Default
cpb-size : Coded Picture Buffer as specified in the HRD model in msec. Not used when control-rate=disable
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 3000
default-roi-quality : The default quality level to apply to each Region of Interest
flags: readable, writable
Enum "GstOMXVideoEncRoiQuality" Default: 0, "high"
(0): high - Delta QP of -5
(1): medium - Delta QP of 0
(2): low - Delta QP of +5
(3): dont-care - Maximum delta QP value
(4): intra - Region all LCU encoded with intra prediction mode
dependent-slice : If encoding with multiple slices, specify whether the additional slices are dependent slice segments or regular slices
flags: readable, writable
Boolean. Default: false
entropy-mode : Entropy mode for encoding process
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXH264EncEntropyMode" Default: -1, "default"
(0): CAVLC - CAVLC entropy mode
(1): CABAC - CABAC entropy mode
(-1): default - Component Default
filler-data : Enable/Disable Filler Data NAL units for CBR rate control
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: true
gdr-mode : Gradual Decoder Refresh scheme mode. Only used if gop-mode=low-delay-p
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncGdrMode" Default: 0, "disabled"
(0): disabled - No GDR
(1): vertical - Gradual refresh using a vertical bar moving from left to right
(2): horizontal - Gradual refresh using a horizontal bar moving from top to bottom
gop-length : Distance between two consecutive I frames
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Unsigned Integer. Range: 0 - 1000 Default: 30
gop-mode : Group Of Pictures mode
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncGopMode" Default: 0, "basic"
(0): basic - Basic GOP settings
(1): basic-b - Basic GOP settings, includes only B-frames
(2): pyramidal - Advanced GOP pattern with hierarchical B-frames
(3): pyramidal-b - Advanced GOP pattern with hierarchical B-frames, includes only B-frames
(5): low-delay-p - Single I-frame followed by P-frames only
(6): low-delay-b - Single I-frame followed by B-frames only
(4): adaptive - Advanced GOP pattern with adaptive B-frames
hlg-sdr-compatible : If enabled and input caps contain HLG colorimetry, insert BT2020 EOTF and ATC SEI instead
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
initial-delay : The initial removal delay as specified in the HRD model in msec. Not used when control-rate=disable
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 1500
input-crop : Cropping parameters for input video buffer ('<left, top, width, height>')
flags: writable
GstValueArray of GValues of type "gint" Write only
interval-intraframes: Interval of coding Intra frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
-h264,alignment=nal ! ...).
flags: readable, writable
Enum "GstOMXVideoEncLatencyMode" Default: 0, "normal"
(0): normal - Normal mode
(1): low-latency - Low latency mode
(-1): default - Component Default
long-term-freq : Periodicity of LongTerm reference picture marking in encoding process Units in frames, distance between two consequtive long-term reference pictures
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
long-term-ref : If enabled, encoder accepts dynamically inserting and using long-term reference picture events from upstream elements
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
look-ahead : The number of frames processed ahead of second pass encoding. If smaller than 2, dual pass encoding is disabled
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
loop-filter-alpha-c0-offset: Alpha C0 offset for the deblocking filter, used only when loop-filter-mode is enabled
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Integer. Range: -6 - 6 Default: -1
loop-filter-beta-offset: Beta offset for the deblocking filter, used only when loop-filter-mode is enabled
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Integer. Range: -6 - 6 Default: -1
loop-filter-mode : Enable or disable the deblocking filter (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXH264EncLoopFilter" Default: -1, "default"
(0): enable - Enable deblocking filter
(1): disable - Disable deblocking filter
(2): disable-slice-boundary - Disables deblocking filter on slice boundary
(-1): default - Component Default
low-bandwidth : If enabled, decrease the vertical search range used for P-frame motion estimation to reduce the bandwidth
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
max-bitrate : Max bitrate in Kbps, only used if control-rate=variable (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
max-consecutive-skip: Max number of consecutive frames to be skipped. Only applicable if skip-frame is enabled
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
ze will not have any effect
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
icture-size-x value. If set it to 0 then max-picture-size-x will not have any effect
flags: writable
GstValueArray of GValues of type "gint" Write only
max-qp : Maximum QP value allowed for the rate control
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 51 Default: 51
le
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
min-force-key-unit-interval: Minimum interval between force-keyunit requests in nanoseconds
flags: readable, writable
Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
min-qp : Minimum QP value allowed for the rate control
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 51 Default: 10
name : The name of the object
flags: readable, writable, 0x2000
String. Default: "omxh264enc-omxh264enc0"
egularly as possible. If slice-size is defined as well more slices may be produced to fit the slice-size requirement (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 1 - 4294967295 Default: 4294967295
output-crop : Cropping parameters for output bitstream ('<left, top, width, height>')
flags: writable
GstValueArray of GValues of type "gint" Write only
parent : The parent of the object
flags: readable, writable, 0x2000
Object of type "GstObject"
periodicity-idr : Periodicity of IDR frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
periodicty-idr : Periodicity of IDR frames (0xffffffff=component default) DEPRECATED - only for backwards compat
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
prefetch-buffer : Enable/Disable L2Cache buffer in encoding process
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
qos : Handle Quality-of-Service events from downstream
flags: readable, writable
Boolean. Default: false
qp-mode : QP control mode used by the VCU encoder
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncQpMode" Default: -1, "default"
(0): uniform - Use the same QP for all coding units of the frame
(1): roi - Adjust QP according to the regions of interest defined on each frame. Must be set to handle ROI metadata.
(2): auto - Let the VCU encoder change the QP for each coding unit according to its content
(3): load-qp-absolute - Uses absolute QP values set by user. Must be set to use External QP buffer
(4): load-qp-relative - Uses Relative/Delta QP values set by user. Must be set to use External QP buffer
(-1): default - Component Default
quant-b-frames : Quantization parameter for B-frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
quant-i-frames : Quantization parameter for I-frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
quant-p-frames : Quantization parameter for P-frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
ref-frames : Number of reference frames used for inter-motion search (0=component default)
flags: readable, writable, changeable only in NULL or READY state
Unknown type 16 "guchar"
scaling-list : Scaling list mode
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncScalingList" Default: 1, "default"
(1): default - Default scaling list mode
(0): flat - Flat scaling list mode
Skip. Only used if control-rate=constant or variable and b-frames are less than 2
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
slice-size : Target slice size (in bytes) that the encoder uses to automatically split the bitstream into approximately equally-sized slices
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 65535 Default: 0
target-bitrate : Target bitrate in Kbps (0xffffffff=component default)
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
uniform-slice-type : Enable/Disable uniform slice type in slice header
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
use-out-port-pool : Use a buffer pool on the output port
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
cture size will be limited to max-picture-size-x value. If set it to 0 then max-picture-size-x will not have any effect
flags: writable
GstValueArray of GValues of type "gint" Write only
y444-to-gray : Enable/Disable YUV format manipulation to Y8
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
|
H.265
The H.265 encoder is available through the omxh265enc GStreamer element.
gst-inspect-1.0 omxh265enc
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root@xilinx-kv260-starterkit-20222:~# gst-inspect-1.0 omxh265enc
Factory Details:
Rank primary + 1 (257)
Long-name OpenMAX H.265 Video Encoder
Klass Codec/Encoder/Video/Hardware
Description Encode H.265 video streams
Author Sebastian Dr?ge <sebastian.droege@collabora.co.uk>
Plugin Details:
Name omx
Description GStreamer OpenMAX Plug-ins
Filename /usr/lib/gstreamer-1.0/libgstomx.so
Version 1.18.5
License LGPL
Source module gst-omx
Source release date 2021-09-08
Binary package GStreamer OpenMAX Plug-ins
Origin URL Unknown package origin
GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstVideoEncoder
+----GstOMXVideoEnc
+----GstOMXH265Enc
+----GstOMXH265Enc-omxh265enc
Implemented Interfaces:
GstPreset
Pad Templates:
SINK template: 'sink'
Availability: Always
Capabilities:
video/x-raw(format:Interlaced)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
interlace-mode: alternate
video/x-raw(memory:XLNXLL)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
SRC template: 'src'
Availability: Always
Capabilities:
video/x-h265
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
stream-format: byte-stream
aligmment: { (string)au, (string)nal }
Element has no clocking capabilities.
Element has no URI handling capabilities.
Pads:
SINK: 'sink'
Pad Template: 'sink'
SRC: 'src'
Pad Template: 'src'
Element Properties:
aspect-ratio : Display aspect ratio of the video sequence to be written in SPS/VUI
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncAspectRatio" Default: 0, "auto"
(0): auto - 4:3 for SD video,16:9 for HD video,unspecified for unknown format
(1): 1-1 - 1:1 aspect ratio
(2): 4-3 - 4:3 aspect ratio
(3): 16-9 - 16:9 aspect ratio
(4): none - Aspect ratio information is not present in the stream
b-frames : Number of B-frames between two consecutive P-frames
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
constrained-intra-prediction: If enabled, prediction only uses residual data and decoded samples from neighbouring coding blocks coded using intra prediction modes
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
control-rate : Bitrate control method
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncControlRate" Default: -1, "default"
(0): disable - Disable
(1): variable - Variable
(2): constant - Constant
(3): variable-skip-frames - Variable Skip Frames
(4): constant-skip-frames - Constant Skip Frames
(2130706434): capped-variable - Capped Variable
(2130706433): low-latency - Low Latency
(-1): default - Component Default
cpb-size : Coded Picture Buffer as specified in the HRD model in msec. Not used when control-rate=disable
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 3000
default-roi-quality : The default quality level to apply to each Region of Interest
flags: readable, writable
Enum "GstOMXVideoEncRoiQuality" Default: 0, "high"
(0): high - Delta QP of -5
(1): medium - Delta QP of 0
(2): low - Delta QP of +5
(3): dont-care - Maximum delta QP value
(4): intra - Region all LCU encoded with intra prediction mode
dependent-slice : If encoding with multiple slices, specify whether the additional slices are dependent slice segments or regular slices
flags: readable, writable
Boolean. Default: false
filler-data : Enable/Disable Filler Data NAL units for CBR rate control
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: true
gdr-mode : Gradual Decoder Refresh scheme mode. Only used if gop-mode=low-delay-p
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncGdrMode" Default: 0, "disabled"
(0): disabled - No GDR
(1): vertical - Gradual refresh using a vertical bar moving from left to right
(2): horizontal - Gradual refresh using a horizontal bar moving from top to bottom
gop-length : Distance between two consecutive I frames
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Unsigned Integer. Range: 0 - 1000 Default: 30
gop-mode : Group Of Pictures mode
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncGopMode" Default: 0, "basic"
(0): basic - Basic GOP settings
(1): basic-b - Basic GOP settings, includes only B-frames
(2): pyramidal - Advanced GOP pattern with hierarchical B-frames
(3): pyramidal-b - Advanced GOP pattern with hierarchical B-frames, includes only B-frames
(5): low-delay-p - Single I-frame followed by P-frames only
(6): low-delay-b - Single I-frame followed by B-frames only
(4): adaptive - Advanced GOP pattern with adaptive B-frames
hlg-sdr-compatible : If enabled and input caps contain HLG colorimetry, insert BT2020 EOTF and ATC SEI instead
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
initial-delay : The initial removal delay as specified in the HRD model in msec. Not used when control-rate=disable
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 1500
input-crop : Cropping parameters for input video buffer ('<left, top, width, height>')
flags: writable
GstValueArray of GValues of type "gint" Write only
interval-intraframes: Interval of coding Intra frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
-h264,alignment=nal ! ...).
flags: readable, writable
Enum "GstOMXVideoEncLatencyMode" Default: 0, "normal"
(0): normal - Normal mode
(1): low-latency - Low latency mode
(-1): default - Component Default
long-term-freq : Periodicity of LongTerm reference picture marking in encoding process Units in frames, distance between two consequtive long-term reference pictures
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
long-term-ref : If enabled, encoder accepts dynamically inserting and using long-term reference picture events from upstream elements
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
look-ahead : The number of frames processed ahead of second pass encoding. If smaller than 2, dual pass encoding is disabled
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
loop-filter-beta-offset: Beta offset for the deblocking filter, used only when loop-filter-mode is enabled
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Integer. Range: -6 - 6 Default: -1
loop-filter-mode : Enable or disable the deblocking filter (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXH265EncLoopFilter" Default: -1, "default"
(0): enable - Enable deblocking filter
(1): disable - Disable deblocking filter
(2): disable-cross-slice - Disable deblocking filter on slice boundary
(3): disable-cross-tile - Disable deblocking filter on tile boundary
(4): disable-slice-and-tile - Disable deblocking filter on slice and tile boundary
(-1): default - Component Default
loop-filter-tc-offset: TC offset for the deblocking filter, used only when loop-filter-mode is enabled
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Integer. Range: -6 - 6 Default: -1
low-bandwidth : If enabled, decrease the vertical search range used for P-frame motion estimation to reduce the bandwidth
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
max-bitrate : Max bitrate in Kbps, only used if control-rate=variable (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
max-consecutive-skip: Max number of consecutive frames to be skipped. Only applicable if skip-frame is enabled
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
ze will not have any effect
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 0
icture-size-x value. If set it to 0 then max-picture-size-x will not have any effect
flags: writable
GstValueArray of GValues of type "gint" Write only
max-qp : Maximum QP value allowed for the rate control
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 51 Default: 51
le
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
min-force-key-unit-interval: Minimum interval between force-keyunit requests in nanoseconds
flags: readable, writable
Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
min-qp : Minimum QP value allowed for the rate control
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 51 Default: 10
name : The name of the object
flags: readable, writable, 0x2000
String. Default: "omxh265enc-omxh265enc0"
egularly as possible. If slice-size is defined as well more slices may be produced to fit the slice-size requirement (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 1 - 4294967295 Default: 4294967295
output-crop : Cropping parameters for output bitstream ('<left, top, width, height>')
flags: writable
GstValueArray of GValues of type "gint" Write only
parent : The parent of the object
flags: readable, writable, 0x2000
Object of type "GstObject"
periodicity-idr : Periodicity of IDR frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
prefetch-buffer : Enable/Disable L2Cache buffer in encoding process
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
qos : Handle Quality-of-Service events from downstream
flags: readable, writable
Boolean. Default: false
qp-mode : QP control mode used by the VCU encoder
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncQpMode" Default: -1, "default"
(0): uniform - Use the same QP for all coding units of the frame
(1): roi - Adjust QP according to the regions of interest defined on each frame. Must be set to handle ROI metadata.
(2): auto - Let the VCU encoder change the QP for each coding unit according to its content
(3): load-qp-absolute - Uses absolute QP values set by user. Must be set to use External QP buffer
(4): load-qp-relative - Uses Relative/Delta QP values set by user. Must be set to use External QP buffer
(-1): default - Component Default
quant-b-frames : Quantization parameter for B-frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
quant-i-frames : Quantization parameter for I-frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
quant-p-frames : Quantization parameter for P-frames (0xffffffff=component default)
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
scaling-list : Scaling list mode
flags: readable, writable, changeable only in NULL or READY state
Enum "GstOMXVideoEncScalingList" Default: 1, "default"
(1): default - Default scaling list mode
(0): flat - Flat scaling list mode
Skip. Only used if control-rate=constant or variable and b-frames are less than 2
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
slice-size : Target slice size (in bytes) that the encoder uses to automatically split the bitstream into approximately equally-sized slices
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 0 - 65535 Default: 0
target-bitrate : Target bitrate in Kbps (0xffffffff=component default)
flags: readable, writable, changeable in NULL, READY, PAUSED or PLAYING state
Unsigned Integer. Range: 0 - 4294967295 Default: 4294967295
uniform-slice-type : Enable/Disable uniform slice type in slice header
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
use-out-port-pool : Use a buffer pool on the output port
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
cture size will be limited to max-picture-size-x value. If set it to 0 then max-picture-size-x will not have any effect
flags: writable
GstValueArray of GValues of type "gint" Write only
y444-to-gray : Enable/Disable YUV format manipulation to Y8
flags: readable, writable, changeable only in NULL or READY state
Boolean. Default: false
|
Video Decoding
H.264
The H.264 decoder is available through the omxh264dec GStreamer element.
gst-inspect-1.0 omxh264dec
|
|---|
root@xilinx-kv260-starterkit-20222:~# gst-inspect-1.0 omxh264dec
Factory Details:
Rank primary + 1 (257)
Long-name OpenMAX H.264 Video Decoder
Klass Codec/Decoder/Video/Hardware
Description Decode H.264 video streams
Author Sebastian Dr?ge <sebastian.droege@collabora.co.uk>
Plugin Details:
Name omx
Description GStreamer OpenMAX Plug-ins
Filename /usr/lib/gstreamer-1.0/libgstomx.so
Version 1.18.5
License LGPL
Source module gst-omx
Source release date 2021-09-08
Binary package GStreamer OpenMAX Plug-ins
Origin URL Unknown package origin
GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstVideoDecoder
+----GstOMXVideoDec
+----GstOMXH264Dec
+----GstOMXH264Dec-omxh264dec
Pad Templates:
SINK template: 'sink'
Availability: Always
Capabilities:
video/x-h264
alignment: au
stream-format: byte-stream
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
video/x-h264
alignment: nal
stream-format: byte-stream
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
SRC template: 'src'
Availability: Always
Capabilities:
video/x-raw(memory:GLMemory)
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw(memory:XLNXLL, format:Interlaced)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
interlace-mode: alternate
video/x-raw(format:Interlaced)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
interlace-mode: alternate
video/x-raw(memory:XLNXLL)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
Element has no clocking capabilities.
Element has no URI handling capabilities.
Pads:
SINK: 'sink'
Pad Template: 'sink'
SRC: 'src'
Pad Template: 'src'
Element Properties:
g high bitrate streams. Decreasing it reduces the memory footprint
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 2 - 16 Default: 5
t to 'au' for normal latency and 'nal' for subframe latency (e.g. ... ! video/x-h264,alignment=nal ! omxh264dec low-latency=1 ! ...).
flags: readable, writable
Enum "GstOMXVideoDecLatencyMode" Default: 0, "normal"
(0): normal - Normal mode
(1): reduced-latency - Low ref dpb mode(reduced-latency)
(2): low-latency - Low latency mode
(-1): default - Component Default
low-latency : When enabled, buffers will be pushed before they are evicted from the DBP, reducing decoding latency.
flags: readable, writable
Boolean. Default: false
max-errors : Max consecutive decoder errors before returning flow error
flags: readable, writable
Integer. Range: -1 - 2147483647 Default: 10
name : The name of the object
flags: readable, writable, 0x2000
String. Default: "omxh264dec-omxh264dec0"
output-position : Position coordinates of start of active pixel data in video buffer ('<position_x, position_y>')
flags: writable
GstValueArray of GValues of type "gint" Write only
parent : The parent of the object
flags: readable, writable, 0x2000
Object of type "GstObject"
qos : Handle Quality-of-Service events from downstream
flags: readable, writable
Boolean. Default: true
buffer and process them.
flags: readable, writable
Boolean. Default: false
|
H.265
The H.265 decoder is available through the omxh265dec GStreamer element.
gst-inspect-1.0 omxh265dec
|
|---|
root@xilinx-kv260-starterkit-20222:~# gst-inspect-1.0 omxh265dec
Rank primary + 1 (257)
Long-name OpenMAX H.265 Video Decoder
Klass Codec/Decoder/Video/Hardware
Description Decode H.265 video streams
Author Sebastian Dr?ge <sebastian.droege@collabora.co.uk>
Plugin Details:
Name omx
Description GStreamer OpenMAX Plug-ins
Filename /usr/lib/gstreamer-1.0/libgstomx.so
Version 1.18.5
License LGPL
Source module gst-omx
Source release date 2021-09-08
Binary package GStreamer OpenMAX Plug-ins
Origin URL Unknown package origin
GObject
+----GInitiallyUnowned
+----GstObject
+----GstElement
+----GstVideoDecoder
+----GstOMXVideoDec
+----GstOMXH265Dec
+----GstOMXH265Dec-omxh265dec
Pad Templates:
SINK template: 'sink'
Availability: Always
Capabilities:
video/x-h265
alignment: au
stream-format: byte-stream
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
video/x-h265
alignment: nal
stream-format: byte-stream
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
SRC template: 'src'
Availability: Always
Capabilities:
video/x-raw(memory:GLMemory)
format: RGBA
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw(memory:XLNXLL, format:Interlaced)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
interlace-mode: alternate
video/x-raw(format:Interlaced)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
interlace-mode: alternate
video/x-raw(memory:XLNXLL)
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
video/x-raw
format: { (string)NV16_10LE32, (string)NV12_10LE32, (string)NV16, (string)NV12, (string)GRAY10_LE32, (string)GRAY8, (string)Y444, (string)Y444_10LE32 }
width: [ 1, 2147483647 ]
height: [ 1, 2147483647 ]
framerate: [ 0/1, 2147483647/1 ]
Element has no clocking capabilities.
Element has no URI handling capabilities.
Pads:
SINK: 'sink'
Pad Template: 'sink'
SRC: 'src'
Pad Template: 'src'
Element Properties:
g high bitrate streams. Decreasing it reduces the memory footprint
flags: readable, writable, changeable only in NULL or READY state
Unsigned Integer. Range: 2 - 16 Default: 5
t to 'au' for normal latency and 'nal' for subframe latency (e.g. ... ! video/x-h264,alignment=nal ! omxh264dec low-latency=1 ! ...).
flags: readable, writable
Enum "GstOMXVideoDecLatencyMode" Default: 0, "normal"
(0): normal - Normal mode
(1): reduced-latency - Low ref dpb mode(reduced-latency)
(2): low-latency - Low latency mode
(-1): default - Component Default
low-latency : When enabled, buffers will be pushed before they are evicted from the DBP, reducing decoding latency.
flags: readable, writable
Boolean. Default: false
max-errors : Max consecutive decoder errors before returning flow error
flags: readable, writable
Integer. Range: -1 - 2147483647 Default: 10
name : The name of the object
flags: readable, writable, 0x2000
String. Default: "omxh265dec-omxh265dec0"
output-position : Position coordinates of start of active pixel data in video buffer ('<position_x, position_y>')
flags: writable
GstValueArray of GValues of type "gint" Write only
parent : The parent of the object
flags: readable, writable, 0x2000
Object of type "GstObject"
qos : Handle Quality-of-Service events from downstream
flags: readable, writable
Boolean. Default: true
buffer and process them.
flags: readable, writable
Boolean. Default: false
|