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 ╰──GstVTEnc ╰──vtenc_h264_hw
Implemented interfaces
Factory details
Authors: – Ole André Vadla Ravnås 
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, ARGB64_BE, RGBA64_LE }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
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
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
data-rate-limits
“data-rate-limits” gchararray
Flags : Read / Write / Construct
Default value : 0,0.00000
Since : 1.26
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
rate-control
“rate-control” GstVtencRateControl *
Flags : Read / Write / Construct
Default value : abr (0)
Since : 1.26
realtime
“realtime” gboolean
Configure the encoder for realtime output
Flags : Read / Write / Construct
Default value : false
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