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 ]
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 }
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
Since : 1.22
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
Since : 1.22
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
Since : 1.22
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
Since : 1.22
Qsv-h264trellis
Members
unknown (0x00000000) – Unknown
off (0x00000001) – Disable for all frame types
i (0x00000002) – Enable for I frames
p (0x00000004) – Enable for P frames
b (0x00000008) – Enable for B frames
Since : 1.24
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