qsvh264enc

Intel Quick Sync H.264 encoder

Example launch line

gst-launch-1.0 videotestsrc ! qsvh264enc ! h264parse ! matroskamux ! filesink location=out.mkv

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoEncoder
                    ╰──GstQsvEncoder
                        ╰──qsvh264enc

Implemented interfaces

Factory details

Authors: – Seungha Yang

Classification:Codec/Encoder/Video/Hardware

Rank – primary

Plugin – qsv

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw(memory:D3D11Memory):
         format: NV12
          width: [ 16, 8192 ]
         height: [ 16, 8192 ]

video/x-raw(memory:VAMemory):
         format: NV12
          width: [ 16, 8192 ]
         height: [ 16, 8192 ]
video/x-raw:
         format: NV12
          width: [ 16, 8192 ]
         height: [ 16, 8192 ]

Presencealways

Directionsink

Object typeGstPad


src

video/x-h264:
          width: [ 16, 8192 ]
         height: [ 16, 8192 ]
  stream-format: { (string)avc, (string)byte-stream }
      alignment: au
        profile: { (string)high, (string)main, (string)constrained-baseline, (string)progressive-high, (string)constrained-high, (string)baseline }

Presencealways

Directionsrc

Object typeGstPad


Properties

avbr-accuracy

“avbr-accuracy” guint

AVBR Accuracy in the unit of tenth of percent

Flags : Read / Write

Default value : 0


avbr-convergence

“avbr-convergence” guint

AVBR Convergence in the unit of 100 frames

Flags : Read / Write

Default value : 0


b-frames

“b-frames” guint

Number of B frames between I and P frames

Flags : Read / Write

Default value : 0


bitrate

“bitrate” guint

Target bitrate in kbit/sec, Ignored when selected rate-control mode is constant QP variants (i.e., "cqp", "icq", and "la_icq")

Flags : Read / Write

Default value : 2000


cabac

“cabac” Qsv-coding-option *

Enables CABAC entropy coding

Flags : Read / Write

Default value : unknown (0)


cc-insert

“cc-insert” Qsv-h264enc-sei-insert-mode *

Closed Caption Insert mode. Only CEA-708 RAW format is supported for now

Flags : Read / Write

Default value : insert (0)


disable-hrd-conformance

“disable-hrd-conformance” gboolean

Allow NAL HRD non-conformant stream

Flags : Read / Write

Default value : false


gop-size

“gop-size” guint

Number of pictures within a GOP (0: unspecified)

Flags : Read / Write

Default value : 30


icq-quality

“icq-quality” guint

Intelligent Constant Quality for "icq" rate-control (0: default)

Flags : Read / Write

Default value : 0


idr-interval

“idr-interval” guint

IDR-frame interval in terms of I-frames. 0: every I-frame is an IDR frame, N: "N" I-frames are inserted between IDR-frames

Flags : Read / Write

Default value : 0


max-bitrate

“max-bitrate” guint

Maximum bitrate in kbit/sec, Ignored when selected rate-control mode is constant QP variants (i.e., "cqp", "icq", and "la_icq")

Flags : Read / Write

Default value : 0


max-qp-b

“max-qp-b” guint

Maximum allowed QP value for B-frame types (0: default)

Flags : Read / Write

Default value : 0


max-qp-i

“max-qp-i” guint

Maximum allowed QP value for I-frame types (0: default)

Flags : Read / Write

Default value : 0


max-qp-p

“max-qp-p” guint

Maximum allowed QP value for P-frame types (0: default)

Flags : Read / Write

Default value : 0


min-qp-b

“min-qp-b” guint

Minimum allowed QP value for B-frame types (0: default)

Flags : Read / Write

Default value : 0


min-qp-i

“min-qp-i” guint

Minimum allowed QP value for I-frame types (0: default)

Flags : Read / Write

Default value : 0


min-qp-p

“min-qp-p” guint

Minimum allowed QP value for P-frame types (0: default)

Flags : Read / Write

Default value : 0


qp-b

“qp-b” guint

Constant quantizer for B frames (0: default)

Flags : Read / Write

Default value : 0


qp-i

“qp-i” guint

Constant quantizer for I frames (0: default)

Flags : Read / Write

Default value : 0


qp-p

“qp-p” guint

Constant quantizer for P frames (0: default)

Flags : Read / Write

Default value : 0


qvbr-quality

“qvbr-quality” guint

Quality level used for "qvbr" rate-control mode (0: default)

Flags : Read / Write

Default value : 0


rate-control

“rate-control” Qsv-h264enc-rate-control *

Rate Control Method

Flags : Read / Write

Default value : vbr (2)


rc-lookahead

“rc-lookahead” guint

Number of frames to look ahead for Rate Control, used for "la_vbr", "la_icq", and "la_hrd" rate-control modes

Flags : Read / Write

Default value : 10


rc-lookahead-ds

“rc-lookahead-ds” Qsv-h264enc-rclook-ahead-ds *

Downsampling method in look-ahead rate control

Flags : Read / Write

Default value : unknown (0)


ref-frames

“ref-frames” guint

Number of reference frames (0: unspecified)

Flags : Read / Write

Default value : 2


Named constants

Qsv-coding-option

Members

unknown (0) – Unknown
on (16) – On
off (32) – Off

Qsv-h264enc-rclook-ahead-ds

Members

unknown (0) – Unknown
off (1) – Do not use down sampling
2x (2) – Down sample frames two times before estimation
4x (3) – Down sample frames four times before estimation

Qsv-h264enc-rate-control

Members

cbr (1) – Constant Bitrate
vbr (2) – Variable Bitrate
cqp (3) – Constant Quantizer
avbr (4) – Average Variable 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

Qsv-h264enc-sei-insert-mode

Members

insert (0) – Insert SEI
insert-and-drop (1) – Insert SEI and remove corresponding meta from output buffer
disabled (2) – Disable SEI insertion

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