# vah264dec

vah264dec decodes H264 bitstreams to VA surfaces using the installed and chosen VA-API driver.

The decoding surfaces can be mapped onto main memory as video frames.

## Example launch line

    gst-launch-1.0 filesrc location=big_buck_bunny.mov ! parsebin ! vah264dec ! autovideosink

## Hierarchy

    GObject
        ╰──GInitiallyUnowned
            ╰──GstObject
                ╰──GstElement
                    ╰──GstVideoDecoder
                        ╰──GstH264Decoder
                            ╰──vah264dec

## Factory details

Authors: – Víctor Jáquez

Classification: – `Codec/Decoder/Video/Hardware`

Rank – primary + 1

Plugin – va

Package – GStreamer Bad Plug-ins

## Pad Templates

### `sink`

    video/x-h264:

Presence – always

Direction – sink

Object type – GstPad

### `src`

    video/x-raw(memory:VAMemory):
             format: { NV12, P010_10LE }
              width: [ 1, 2147483647 ]
             height: [ 1, 2147483647 ]
          framerate: [ 0/1, 2147483647/1 ]
    video/x-raw:
             format: { NV12, P010_10LE }
              width: [ 1, 2147483647 ]
             height: [ 1, 2147483647 ]
          framerate: [ 0/1, 2147483647/1 ]

Presence – always

Direction – src

Object type – GstPad

## Properties

### device-path

    “device-path” gchararray

It shows the DRM device path used for the VA operation, if any.

Flags : Read

Default value : NULL

Since : 1.22

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