vtenc_h264_hw

Apple VideoToolbox H264 HW-only encoder (only available on macOS at present).

Example pipeline

 gst-launch-1.0 -v videotestsrc ! vtenc_h264_hw ! qtmux ! filesink location=out.mov

Encode a test video pattern and save it as an MOV file

Hierarchy

GObject
    ╰──GInitiallyUnowned
        ╰──GstObject
            ╰──GstElement
                ╰──GstVideoEncoder
                    ╰──vtenc_h264_hw

Implemented interfaces

Factory details

Authors: – Ole André Vadla Ravnås , Dominik Röttsches

Classification:Codec/Encoder/Video/Hardware

Rank – primary

Plugin – applemedia

Package – GStreamer Bad Plug-ins

Pad Templates

sink

video/x-raw:
         format: { AYUV64, UYVY, NV12, I420, RGBA64_LE, ARGB64_BE }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]

Presencealways

Directionsink

Object typeGstPad


src

video/x-h264:
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
 interlace-mode: { (string)progressive, (string)interleaved }
  stream-format: avc
      alignment: au

Presencealways

Directionsrc

Object typeGstPad


Properties

allow-frame-reordering

“allow-frame-reordering” gboolean

Whether to allow frame reordering or not

Flags : Read / Write / Construct

Default value : true


bitrate

“bitrate” guint

Target video bitrate in kbps (0 = auto)

Flags : Read / Write / Construct

Default value : 0


max-keyframe-interval

“max-keyframe-interval” gint

Maximum number of frames between keyframes (0 = auto)

Flags : Read / Write / Construct

Default value : 0


max-keyframe-interval-duration

“max-keyframe-interval-duration” guint64

Maximum number of nanoseconds between keyframes (0 = no limit)

Flags : Read / Write / Construct

Default value : 0


quality

“quality” gdouble

The desired compression quality

Flags : Read / Write / Construct

Default value : 0.5


realtime

“realtime” gboolean

Configure the encoder for realtime output

Flags : Read / Write / Construct

Default value : false


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