# rtponviftimestamp

Add absolute timestamps and flags of recorded data in a playback session

## Hierarchy

    GObject
        ╰──GInitiallyUnowned
            ╰──GstObject
                ╰──GstElement
                    ╰──rtponviftimestamp

## Factory details

Authors: – Guillaume Desmottes <guillaume.desmottes></guillaume.desmottes>

Classification: – `Effect/RTP`

Rank – none

Plugin – rtponvif

Package – GStreamer Bad Plug-ins

## Pad Templates

### `sink`

    application/x-rtp:

Presence – always

Direction – sink

Object type – GstPad

### `src`

    application/x-rtp:

Presence – always

Direction – src

Object type – GstPad

## Properties

### cseq

    “cseq” guint

The RTSP CSeq which initiated the playback

Flags : Read / Write

Default value : 0

### drop-out-of-segment

    “drop-out-of-segment” gboolean

Whether the element should drop buffers that fall outside the segment, not part of the specification but allows full reverse playback.

Flags : Read / Write

Default value : true

### ntp-offset

    “ntp-offset” guint64

Offset between the pipeline running time and the absolute UTC time, in nano-seconds since 1900 (-1 for automatic computation)

Flags : Read / Write

Default value : 18446744073709551615

### set-e-bit

    “set-e-bit” gboolean

If the element should set the 'E' bit as defined in the ONVIF RTP extension. This increases latency by one packet

Flags : Read / Write

Default value : false

### set-t-bit

    “set-t-bit” gboolean

If the element should set the 'T' bit as defined in the ONVIF RTP extension. This increases latency by one packet

Flags : Read / Write

Default value : false

### use-reference-timestamps

    “use-reference-timestamps” gboolean

Whether to obtain timestamps from reference timestamp meta instead of using the ntp-offset method. If enabled then timestamps are expected to be attached to the buffers, and in that case ntp-offset should not be configured.

Default value is FALSE, meaning that the ntp-offset property is used. If neither is set then the element calculates an ntp-offset.

Flags : Read / Write

Default value : false

Since : 1.22

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