| Top |  |  |  |  | 
| guint | bitrate | Read / Write | 
| guint | keyframe-period | Read / Write | 
| guint | loop-filter-level | Read / Write | 
| GstVaapiRateControlVP8 | rate-control | Read / Write | 
| guint | sharpness-level | Read / Write | 
| GstVaapiEncoderTuneVP8 | tune | Read / Write | 
| guint | yac-qi | Read / Write | 
GObject ╰── GInitiallyUnowned ╰── GstObject ╰── GstElement ╰── GstVideoEncoder ╰── GstVaapiEncode ╰── GstVaapiEncodeVP8
Encodes raw video streams into VP8 bitstreams.
| 1 | gst-launch-1.0 -ev videotestsrc num-buffers=60 ! timeoverlay ! vaapivp8enc ! matroskamux ! filesink location=test.mkv | 
| plugin | vaapi | 
| author | Sreerenj Balachandran <sreerenj.balachandran@intel.com> | 
| class | Codec/Encoder/Video | 
| name | sink | 
| direction | sink | 
| presence | always | 
| details | video/x-raw(memory:VASurface), format=(string){ ENCODED, NV12, I420, YV12 }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], interlace-mode=(string)progressive | 
| video/x-raw, format=(string){ I420, YV12, YUY2, UYVY, AYUV, RGBx, BGRx, xRGB, xBGR, RGBA, BGRA, ARGB, ABGR, RGB, BGR, Y41B, Y42B, YVYU, Y444, v210, v216, NV12, NV21, NV16, NV61, NV24, GRAY8, GRAY16_BE, GRAY16_LE, v308, RGB16, BGR16, RGB15, BGR15, UYVP, A420, RGB8P, YUV9, YVU9, IYU1, ARGB64, AYUV64, r210, I420_10LE, I420_10BE, I422_10LE, I422_10BE, Y444_10LE, Y444_10BE, GBR, GBR_10LE, GBR_10BE, NV12_64Z32, A420_10LE, A420_10BE, A422_10LE, A422_10BE, A444_10LE, A444_10BE }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], interlace-mode=(string)progressive | 
| name | src | 
| direction | source | 
| presence | always | 
| details | video/x-vp8 | 
“bitrate” property“bitrate” guint
The desired bitrate expressed in kbps (0: auto-calculate).
Flags: Read / Write
Allowed values: <= 102400
Default value: 0
“keyframe-period” property“keyframe-period” guint
Maximal distance between two keyframes (0: auto-calculate).
Flags: Read / Write
Allowed values: [1,300]
Default value: 30
“loop-filter-level” property“loop-filter-level” guint
Controls the deblocking filter strength.
Flags: Read / Write
Allowed values: <= 63
Default value: 0
“rate-control” property  “rate-control”             GstVaapiRateControlVP8
Rate control mode.
Flags: Read / Write
Default value: Constant QP
“sharpness-level” property“sharpness-level” guint
Controls the deblocking filter sensitivity.
Flags: Read / Write
Allowed values: <= 7
Default value: 0
“tune” property  “tune”                     GstVaapiEncoderTuneVP8
Encoder tuning option.
Flags: Read / Write
Default value: None
“yac-qi” property“yac-qi” guint
Quantization Table index for Luma AC Coefficients, (in default case, yac_qi=4 for key frames and yac_qi=40 for P frames).
Flags: Read / Write
Allowed values: <= 127
Default value: 40