nvh264enc

Encode H.264 video streams using NVCODEC API CUDA Mode

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoEncoder
                    ╰──GstNvEncoder
                        ╰──nvh264enc

Implemented interfaces

Factory details

Authors: – Seungha Yang

Classification: – Codec/Encoder/Video/Hardware

Rank – primary + 1

Plugin – nvcodec

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw(memory:CUDAMemory):
         format: { NV12, Y444, VUYA, RGBA, RGBx, BGRA, BGRx }
          width: [ 160, 4096 ]
         height: [ 64, 4096 ]
 interlace-mode: progressive

video/x-raw(memory:GLMemory):
         format: { NV12, Y444, VUYA, RGBA, RGBx, BGRA, BGRx }
          width: [ 160, 4096 ]
         height: [ 64, 4096 ]
 interlace-mode: progressive
video/x-raw:
         format: { NV12, Y444, VUYA, RGBA, RGBx, BGRA, BGRx }
          width: [ 160, 4096 ]
         height: [ 64, 4096 ]
 interlace-mode: progressive

Presence – always

Direction – sink

Object type – GstPad

src

video/x-h264:
          width: [ 160, 4096 ]
         height: [ 64, 4096 ]
        profile: { (string)main, (string)high, (string)constrained-baseline, (string)baseline, (string)high-4:4:4 }
  stream-format: { (string)byte-stream, (string)avc }
      alignment: au

Presence – always

Direction – src

Object type – GstPad

Properties

aq-strength 

“aq-strength” guint

Adaptive Quantization Strength when spatial-aq is enabled from 1 (low) to 15 (aggressive), (0 = autoselect)

Flags : Read / Write

Default value : 0

aud 

“aud” gboolean

Use AU (Access Unit) delimiter

Flags : Read / Write

Default value : true

b-adapt 

“b-adapt” gboolean

Enable adaptive B-frame insert when lookahead is enabled

Flags : Read / Write

Default value : false

bframes 

“bframes” guint

Number of B-frames between I and P

Flags : Read / Write

Default value : 0

bitrate 

“bitrate” guint

Bitrate in kbit/sec (0 = automatic)

Flags : Read / Write

Default value : 0

cabac 

“cabac” gboolean

Enable CABAC entropy coding

Flags : Read / Write

Default value : true

const-quality 

“const-quality” gdouble

Target Constant Quality level for VBR mode (0 = automatic)

Flags : Read / Write

Default value : 0

cuda-device-id 

“cuda-device-id” guint

CUDA device ID of associated GPU

Flags : Read

Default value : 0

gop-size 

“gop-size” gint

Number of frames between intra frames (-1 = infinite)

Flags : Read / Write

Default value : 75

i-adapt 

“i-adapt” gboolean

Enable adaptive I-frame insert when lookahead is enabled

Flags : Read / Write

Default value : false

max-bitrate 

“max-bitrate” guint

Maximum Bitrate in kbit/sec (ignored in CBR mode)

Flags : Read / Write

Default value : 0

multi-pass 

“multi-pass” GstNvEncoderMultiPass *

Multi pass encoding

Flags : Read / Write

Default value : default (0)

nonref-p 

“nonref-p” gboolean

Automatic insertion of non-reference P-frames

Flags : Read / Write

Default value : false

preset 

“preset” GstNvEncoderPreset *

Encoding Preset

Flags : Read / Write

Default value : default (0)

qp-const 

“qp-const” gint

DEPRECATED, use qp-const-{i,p,b} properties instead

Flags : Read / Write

Default value : -1

qp-const-b 

“qp-const-b” gint

Constant QP value for B frame (-1 = default)

Flags : Read / Write

Default value : -1

qp-const-i 

“qp-const-i” gint

Constant QP value for I frame (-1 = default)

Flags : Read / Write

Default value : -1

qp-const-p 

“qp-const-p” gint

Constant QP value for P frame (-1 = default)

Flags : Read / Write

Default value : -1

qp-max 

“qp-max” gint

DEPRECATED, Use qp-max-{i,p,b} properties instead

Flags : Read / Write

Default value : -1

qp-max-b 

“qp-max-b” gint

Maximum QP value for B frame, (-1 = automatic)

Flags : Read / Write

Default value : -1

qp-max-i 

“qp-max-i” gint

Maximum QP value for I frame, (-1 = automatic)

Flags : Read / Write

Default value : -1

qp-max-p 

“qp-max-p” gint

Maximum QP value for P frame, (-1 = automatic)

Flags : Read / Write

Default value : -1

qp-min 

“qp-min” gint

DEPRECATED, Use qp-min-{i,p,b} properties instead

Flags : Read / Write

Default value : -1

qp-min-b 

“qp-min-b” gint

Minimum QP value for B frame, (-1 = automatic)

Flags : Read / Write

Default value : -1

qp-min-i 

“qp-min-i” gint

Minimum QP value for I frame, (-1 = automatic)

Flags : Read / Write

Default value : -1

qp-min-p 

“qp-min-p” gint

Minimum QP value for P frame, (-1 = automatic)

Flags : Read / Write

Default value : -1

rc-lookahead 

“rc-lookahead” guint

Number of frames for frame type lookahead

Flags : Read / Write

Default value : 0

rc-mode 

“rc-mode” GstNvEncoderRCMode *

Rate Control Mode

Flags : Read / Write

Default value : default (0)

repeat-sequence-header 

“repeat-sequence-header” gboolean

Insert sequence headers (SPS/PPS) per IDR

Flags : Read / Write

Default value : false

spatial-aq 

“spatial-aq” gboolean

Spatial Adaptive Quantization

Flags : Read / Write

Default value : false

strict-gop 

“strict-gop” gboolean

Minimize GOP-to-GOP rate fluctuations

Flags : Read / Write

Default value : false

temporal-aq 

“temporal-aq” gboolean

Temporal Adaptive Quantization

Flags : Read / Write

Default value : false

tune 

“tune” GstNvEncoderTune *

Encoding tune

Flags : Read / Write

Default value : default (0)

vbv-buffer-size 

“vbv-buffer-size” guint

VBV(HRD) Buffer Size in kbits (0 = NVENC default)

Flags : Read / Write

Default value : 0

weighted-pred 

“weighted-pred” gboolean

Enables Weighted Prediction

Flags : Read / Write

Default value : false

zerolatency 

“zerolatency” gboolean

Zero latency operation (no reordering delay)

Flags : Read / Write

Default value : false

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