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Showing content from https://gstreamer.freedesktop.org/documentation/v4l2codecs/v4l2slmpeg2dec.html below:

v4l2slmpeg2dec

v4l2slmpeg2dec

decodes MPEG2 Video bitstreams as DMABuf using Linux V4L2 Stateless API.

Example launch line
gst-launch-1.0 filesrc location=some.mov ! parsebin ! v4l2slmpeg2dec ! autovideosink
Hierarchy Factory details

Authors: – Daniel Almeida

Classification: – Codec/Decoder/Video/Hardware

Rank – primary + 1

Plugin – v4l2codecs

Package – GStreamer Bad Plug-ins

Pad Templates sink
video/mpeg:
   systemstream: false
    mpegversion: 2
        profile: { (string)main, (string)simple }

Presence – always

Direction – sink

Object type – GstPad

src
video/x-raw(memory:DMABuf):
         format: DMA_DRM
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]
video/x-raw:
         format: { NV16_10LE40, NV16, MT2110R, MT2110T, NV12_10LE40_4L4, NV12_10LE40, P010_10LE, YUY2, NV12_16L32S, NV12_32L32, NV12_4L4, NV12, I420 }
          width: [ 1, 2147483647 ]
         height: [ 1, 2147483647 ]
      framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – src

Object type – GstPad

Properties video-device
“video-device” gchararray

Path to the video device node

Flags : Read / Write / Construct Only

Default value : /dev/videoX

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