GstMsdkEnc

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoEncoder
                    ╰──GstMsdkEnc

Properties

accuracy

“accuracy” guint

The AVBR Accuracy in the unit of tenth of percent

Flags : Read / Write

Default value : 0

async-depth

“async-depth” guint

Depth of asynchronous pipeline

Flags : Read / Write

Default value : 4

b-adapt

“b-adapt” Msdk-enc-adaptive-b *

Adaptive B-Frame Insertion control

Flags : Read / Write

Default value : off (32)

b-frames

“b-frames” guint

Number of B frames between I and P frames

Flags : Read / Write

Default value : 0

bitrate

“bitrate” guint

Bitrate in kbit/sec

Flags : Read / Write

Default value : 2048

convergence

“convergence” guint

The AVBR Convergence in the unit of 100 frames

Flags : Read / Write

Default value : 0

ext-coding-props

“ext-coding-props” GstStructure *

The properties for the external coding.

Supported properties:

extbrc         : External bitrate control
                 String. Range: { auto, on, off } Default: off

Example:

ext-coding-props="props,extbrc=on"

Flags : Read / Write

Since : 1.20

gop-size

“gop-size” guint

GOP Size

Flags : Read / Write

Default value : 256

hardware

“hardware” gboolean

Enable hardware encoders

Flags : Read / Write

Default value : true

i-adapt

“i-adapt” Msdk-enc-adaptive-i *

Adaptive I-Frame Insertion control

Flags : Read / Write

Default value : off (32)

i-frames

“i-frames” guint

Number of I frames between IDR frames

Flags : Read / Write

Default value : 0

max-frame-size

“max-frame-size” guint

Maximum possible size (in kbyte) of any compressed frames (0: auto-calculate)

Flags : Read / Write

Default value : 0

max-vbv-bitrate

“max-vbv-bitrate” guint

Maximum bitrate(kbit/sec) at which data enters Video Buffering Verifier (0: auto-calculate)

Flags : Read / Write

Default value : 0

mbbrc

“mbbrc” Msdk-enc-mb-bitrate-control *

Macroblock level bitrate control

Flags : Read / Write

Default value : off (32)

num-slices

“num-slices” guint

Number of slices per frame, Zero tells the encoder to choose any slice partitioning allowed by the codec standard

Flags : Read / Write

Default value : 0

qpb

“qpb” guint

Constant quantizer for B frames (0 unlimited)

Flags : Read / Write

Default value : 0

qpi

“qpi” guint

Constant quantizer for I frames (0 unlimited). Also used as ICQQuality or QVBRQuality for different RateControl methods

Flags : Read / Write

Default value : 0

qpp

“qpp” guint

Constant quantizer for P frames (0 unlimited)

Flags : Read / Write

Default value : 0

rate-control

“rate-control” Msdk-enc-rate-control *

Rate control method

Flags : Read / Write

Default value : cbr (1)

rc-lookahead

“rc-lookahead” guint

Number of frames to look ahead for Rate control

Flags : Read / Write

Default value : 10

ref-frames

“ref-frames” guint

Number of reference frames

Flags : Read / Write

Default value : 1

target-usage

“target-usage” guint

1: Best quality, 4: Balanced, 7: Best speed

Flags : Read / Write

Default value : 4

Named constants

Msdk-enc-adaptive-b

Members

auto (0) – SDK desides what to do

off (32) – Disable Adaptive B-Frame insertion

on (16) – Enable Aaptive B-Frame insertion

Msdk-enc-adaptive-i

Members

auto (0) – SDK desides what to do

off (32) – Disable Adaptive I frame insertion

on (16) – Enable Aaptive I frame insertion

Msdk-enc-mb-bitrate-control

Members

auto (0) – SDK desides what to do

off (32) – Disable Macroblock level bit rate control

on (16) – Enable Macroblock level bit rate control

Msdk-enc-rate-control

Members

cbr (1) – Constant Bitrate

vbr (2) – Variable Bitrate

cqp (3) – Constant Quantizer

avbr (4) – Average Bitrate

la_vbr (8) – VBR with look ahead (Non HRD compliant)

icq (9) – Intelligent CQP

vcm (10) – Video Conferencing Mode (Non HRD compliant)

la_icq (11) – Intelligent CQP with LA (Non HRD compliant)

la_hrd (13) – HRD compliant LA

qvbr (14) – VBR with CQP

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