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| gint | arnr-maxframes | Read / Write |
| gint | arnr-strength | Read / Write |
| gint | arnr-type | Read / Write |
| gboolean | auto-alt-ref | Read / Write |
| gint | buffer-initial-size | Read / Write |
| gint | buffer-optimal-size | Read / Write |
| gint | buffer-size | Read / Write |
| gint | cpu-used | Read / Write |
| gint | cq-level | Read / Write |
| gint64 | deadline | Read / Write |
| gint | dropframe-threshold | Read / Write |
| GstVP9EncEndUsage | end-usage | Read / Write |
| GstVP9EncErFlags | error-resilient | Read / Write |
| GstVP9EncScalingMode | horizontal-scaling-mode | Read / Write |
| gint | keyframe-max-dist | Read / Write |
| GstVP9EncKfMode | keyframe-mode | Read / Write |
| gint | lag-in-frames | Read / Write |
| gint | max-intra-bitrate | Read / Write |
| gint | max-quantizer | Read / Write |
| gint | min-quantizer | Read / Write |
| gchar * | multipass-cache-file | Read / Write |
| GstVP9EncMultipassMode | multipass-mode | Read / Write |
| gint | noise-sensitivity | Read / Write |
| gint | overshoot | Read / Write |
| gboolean | resize-allowed | Read / Write |
| gint | resize-down-threshold | Read / Write |
| gint | resize-up-threshold | Read / Write |
| gint | sharpness | Read / Write |
| gint | static-threshold | Read / Write |
| gint | target-bitrate | Read / Write |
| GValueArray * | temporal-scalability-layer-id | Read / Write |
| gint | temporal-scalability-number-layers | Read / Write |
| gint | temporal-scalability-periodicity | Read / Write |
| GValueArray * | temporal-scalability-rate-decimator | Read / Write |
| GValueArray * | temporal-scalability-target-bitrate | Read / Write |
| gint | threads | Read / Write |
| GstFraction | timebase | Read / Write |
| GstVP9EncTokenPartitions | token-partitions | Read / Write |
| GstVP9EncTuning | tuning | Read / Write |
| gint | twopass-vbr-bias | Read / Write |
| gint | twopass-vbr-maxsection | Read / Write |
| gint | twopass-vbr-minsection | Read / Write |
| gint | undershoot | Read / Write |
| GstVP9EncScalingMode | vertical-scaling-mode | Read / Write |
GObject
╰── GInitiallyUnowned
╰── GstObject
╰── GstElement
╰── GstVideoEncoder
╰── GstVPXEnc
╰── GstVP9Enc
This element encodes raw video into a VP9 stream.
VP9 is a royalty-freevideo codec maintained by Google . It's the successor of On2 VP3, which was the base of the Theora video codec.
To control the quality of the encoding, the “target-bitrate”, “min-quantizer”, “max-quantizer” or “cq-level” properties can be used. Which one is used depends on the mode selected by the “end-usage” property. See Encoder Parameters for explanation, examples for useful encoding parameters and more details on the encoding parameters.
1 |
gst-launch-1.0 -v videotestsrc num-buffers=1000 ! vp9enc ! webmmux ! filesink location=videotestsrc.webm |
plugin |
vpx |
author |
David Schleef <ds@entropywave.com>, Sebastian Dröge <sebastian.droege@collabora.co.uk> |
class |
Codec/Encoder/Video |
name |
sink |
direction |
sink |
presence |
always |
details |
video/x-raw, format=(string){ I420, YV12 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ] |
name |
src |
direction |
source |
presence |
always |
details |
video/x-vp9, profile=(string){ 0, 1, 2, 3 } |
“arnr-maxframes” property “arnr-maxframes” gint
AltRef maximum number of frames.
Flags: Read / Write
Allowed values: [0,15]
Default value: 0
“arnr-strength” property “arnr-strength” gint
AltRef strength.
Flags: Read / Write
Allowed values: [0,6]
Default value: 3
“arnr-type” property “arnr-type” gint
AltRef type.
Flags: Read / Write
Allowed values: [1,3]
Default value: 3
“auto-alt-ref” property “auto-alt-ref” gboolean
Automatically generate AltRef frames.
Flags: Read / Write
Default value: FALSE
“buffer-initial-size” property “buffer-initial-size” gint
Initial client buffer size (ms).
Flags: Read / Write
Allowed values: >= 0
Default value: 4000
“buffer-optimal-size” property “buffer-optimal-size” gint
Optimal client buffer size (ms).
Flags: Read / Write
Allowed values: >= 0
Default value: 5000
“buffer-size” property “buffer-size” gint
Client buffer size (ms).
Flags: Read / Write
Allowed values: >= 0
Default value: 6000
“cpu-used” property “cpu-used” gint
CPU used.
Flags: Read / Write
Allowed values: [-16,16]
Default value: 0
“cq-level” property “cq-level” gint
Constrained quality level.
Flags: Read / Write
Allowed values: [0,63]
Default value: 10
“deadline” property “deadline” gint64
Deadline per frame (usec, 0=disabled).
Flags: Read / Write
Allowed values: >= 0
Default value: 0
“dropframe-threshold” property “dropframe-threshold” gint
Temporal resampling threshold (buf %).
Flags: Read / Write
Allowed values: [0,100]
Default value: 0
“end-usage” property “end-usage” GstVP9EncEndUsage
Rate control mode.
Flags: Read / Write
Default value: Variable Bit Rate (VBR) mode
“error-resilient” property “error-resilient” GstVP9EncErFlags
Error resilience flags.
Flags: Read / Write
“horizontal-scaling-mode” property “horizontal-scaling-mode” GstVP9EncScalingMode
Horizontal scaling mode.
Flags: Read / Write
Default value: Normal
“keyframe-max-dist” property “keyframe-max-dist” gint
Maximum distance between keyframes (number of frames).
Flags: Read / Write
Allowed values: >= 0
Default value: 128
“keyframe-mode” property “keyframe-mode” GstVP9EncKfMode
Keyframe placement.
Flags: Read / Write
Default value: Determine optimal placement automatically
“lag-in-frames” property “lag-in-frames” gint
Maximum number of frames to lag.
Flags: Read / Write
Allowed values: [0,25]
Default value: 0
“max-intra-bitrate” property “max-intra-bitrate” gint
Maximum Intra frame bitrate.
Flags: Read / Write
Allowed values: >= 0
Default value: 0
“max-quantizer” property “max-quantizer” gint
Maximum Quantizer (worst).
Flags: Read / Write
Allowed values: [0,63]
Default value: 63
“min-quantizer” property “min-quantizer” gint
Minimum Quantizer (best).
Flags: Read / Write
Allowed values: [0,63]
Default value: 4
“multipass-cache-file” property “multipass-cache-file” gchar *
Multipass cache file. If stream caps reinited, multiple files will be created: file, file.1, file.2, ... and so on.
Flags: Read / Write
Default value: "multipass.cache"
“multipass-mode” property “multipass-mode” GstVP9EncMultipassMode
Multipass encode mode.
Flags: Read / Write
Default value: One pass encoding (default)
“noise-sensitivity” property “noise-sensitivity” gint
Noise sensisivity (frames to blur).
Flags: Read / Write
Allowed values: [0,6]
Default value: 0
“overshoot” property “overshoot” gint
Datarate overshoot (max) target (%).
Flags: Read / Write
Allowed values: [0,1000]
Default value: 100
“resize-allowed” property “resize-allowed” gboolean
Allow spatial resampling.
Flags: Read / Write
Default value: FALSE
“resize-down-threshold” property “resize-down-threshold” gint
Downscale threshold (buf %).
Flags: Read / Write
Allowed values: [0,100]
Default value: 60
“resize-up-threshold” property “resize-up-threshold” gint
Upscale threshold (buf %).
Flags: Read / Write
Allowed values: [0,100]
Default value: 30
“sharpness” property “sharpness” gint
Filter sharpness.
Flags: Read / Write
Allowed values: [0,7]
Default value: 0
“static-threshold” property “static-threshold” gint
Motion detection threshold.
Flags: Read / Write
Allowed values: >= 0
Default value: 0
“target-bitrate” property “target-bitrate” gint
Target bitrate (in bits/sec).
Flags: Read / Write
Allowed values: >= 0
Default value: 256000
“temporal-scalability-layer-id” property “temporal-scalability-layer-id” GValueArray *
Sequence defining coding layer membership.
Flags: Read / Write
“temporal-scalability-number-layers” property “temporal-scalability-number-layers” gint
Number of coding layers to use.
Flags: Read / Write
Allowed values: [1,5]
Default value: 1
“temporal-scalability-periodicity” property “temporal-scalability-periodicity” gint
Length of sequence that defines layer membership periodicity.
Flags: Read / Write
Allowed values: [0,16]
Default value: 0
“temporal-scalability-rate-decimator” property “temporal-scalability-rate-decimator” GValueArray *
Rate decimation factors for each layer.
Flags: Read / Write
“temporal-scalability-target-bitrate” property “temporal-scalability-target-bitrate” GValueArray *
Target bitrates for coding layers (one per layer, decreasing).
Flags: Read / Write
“threads” property “threads” gint
Number of threads to use.
Flags: Read / Write
Allowed values: [0,64]
Default value: 0
“timebase” property “timebase” GstFraction
Fraction of one second that is the shortest interframe time - normally left as zero which will default to the framerate.
Flags: Read / Write
“token-partitions” property “token-partitions” GstVP9EncTokenPartitions
Number of token partitions.
Flags: Read / Write
Default value: One token partition
“tuning” property “tuning” GstVP9EncTuning
Tuning.
Flags: Read / Write
Default value: Tune for PSNR
“twopass-vbr-bias” property “twopass-vbr-bias” gint
CBR/VBR bias (0=CBR, 100=VBR).
Flags: Read / Write
Allowed values: [0,100]
Default value: 50
“twopass-vbr-maxsection” property “twopass-vbr-maxsection” gint
GOP maximum bitrate (% target).
Flags: Read / Write
Allowed values: >= 0
Default value: 0
“twopass-vbr-minsection” property “twopass-vbr-minsection” gint
GOP minimum bitrate (% target).
Flags: Read / Write
Allowed values: >= 0
Default value: 0
“undershoot” property “undershoot” gint
Datarate undershoot (min) target (%).
Flags: Read / Write
Allowed values: [0,1000]
Default value: 100