nvh264enc

Encode H.264 video streams using NVIDIA's hardware-accelerated NVENC encoder API

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoEncoder
                    ╰──GstNvBaseEnc
                        ╰──GstNvDevice0H264Enc
                            ╰──nvh264enc

Implemented interfaces

Factory details

Authors: – Tim-Philipp Müller , Matthew Waters , Seungha Yang

Classification: – Codec/Encoder/Video/Hardware

Rank – primary + 256

Plugin – nvcodec

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw:
         format: { NV12, YV12, I420, BGRA, RGBA, Y444, VUYA }
          width: [ 145, 4096 ]
         height: [ 49, 4096 ]
      framerate: [ 0/1, 2147483647/1 ]
 interlace-mode: { (string)progressive }

video/x-raw(memory:GLMemory):
         format: { NV12, YV12, I420, BGRA, RGBA, Y444, VUYA }
          width: [ 145, 4096 ]
         height: [ 49, 4096 ]
      framerate: [ 0/1, 2147483647/1 ]
 interlace-mode: { (string)progressive }

video/x-raw(memory:CUDAMemory):
         format: { NV12, YV12, I420, BGRA, RGBA, Y444, VUYA }
          width: [ 145, 4096 ]
         height: [ 49, 4096 ]
      framerate: [ 0/1, 2147483647/1 ]
 interlace-mode: { (string)progressive }

Presence – always

Direction – sink

Object type – GstPad

src

video/x-h264:
          width: [ 145, 4096 ]
         height: [ 49, 4096 ]
      framerate: [ 0/1, 2147483647/1 ]
  stream-format: byte-stream
      alignment: au
        profile: { (string)main, (string)high, (string)high-4:4:4, (string)baseline, (string)constrained-baseline }

Presence – always

Direction – src

Object type – GstPad

Properties

aud 

“aud” gboolean

Use AU (Access Unit) delimiter

Flags : Read / Write

Default value : true

Since : 1.18

b-adapt 

“b-adapt” gboolean

Enable adaptive B-frame insert when lookahead is enabled

Flags : Read / Write

Default value : false

Since : 1.18

bframes 

“bframes” guint

Number of B-frames between I and P

Flags : Read / Write

Default value : 0

Since : 1.18

rc-lookahead 

“rc-lookahead” guint

Number of frames for frame type lookahead

Flags : Read / Write

Default value : 0

Since : 1.18

temporal-aq 

“temporal-aq” gboolean

Temporal Adaptive Quantization

Flags : Read / Write

Default value : false

Since : 1.18

vbv-buffer-size 

“vbv-buffer-size” guint

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

Flags : Read / Write

Default value : 0

Since : 1.18

weighted-pred 

“weighted-pred” gboolean

Weighted Prediction

Flags : Read / Write

Default value : false

Since : 1.18

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