avwait

avwait

Properties

GstAvWaitMode mode Read / Write
guint64 target-running-time Read / Write
GstVideoTimeCode * target-timecode Read / Write
gchar * target-timecode-string Read / Write
GstVideoTimeCode * end-timecode Read / Write
gboolean recording Read / Write

Types and Values

struct GstAvWait
enum GstAvWaitMode

Object Hierarchy

    GObject
    ╰── GInitiallyUnowned
        ╰── GstObject
            ╰── GstElement
                ╰── GstAvWait

Description

This element will drop all buffers until a specific timecode or running time has been reached. It will then pass-through both audio and video, starting from that specific timecode or running time, making sure that audio starts as early as possible after the video (or at the same time as the video). In the "video-first" mode, it only drops audio buffers until video has started.

The "recording" property acts essentially like a valve connected before everything else. If recording is FALSE, all buffers are dropped regardless of settings. If recording is TRUE, the other settings (mode, target-timecode, target-running-time, etc) are taken into account. Audio will always start and end together with the video, as long as the stream itself doesn't start too late or end too early.

Example launch line

1
 
gst-launch-1.0 filesrc location="my_file" ! decodebin name=d ! "audio/x-raw" ! avwait name=l target-timecode-str="00:00:04:00" ! autoaudiosink d. ! "video/x-raw" ! timecodestamper ! l. l. ! queue ! timeoverlay time-mode=time-code ! autovideosink

Synopsis

Element Information

plugin

 timecode

author

 Vivia Nikolaidou <vivia@toolsonair.com>

class

 Filter/Audio/Video

Element Pads

name

 asink

direction

 sink

presence

 always

details

 audio/x-raw

name

 vsink

direction

 sink

presence

 always

details

 video/x-raw

name

 asrc

direction

 source

presence

 always

details

 audio/x-raw

name

 vsrc

direction

 source

presence

 always

details

 video/x-raw

Functions

Types and Values

struct GstAvWait

struct GstAvWait;

enum GstAvWaitMode

Members

MODE_TIMECODE

    

MODE_RUNNING_TIME

    

MODE_VIDEO_FIRST

    

Property Details

The “mode” property

  “mode”                     GstAvWaitMode

Operation mode: What to wait for.

Flags: Read / Write

Default value: time code (default)

The “target-running-time” property

  “target-running-time”      guint64

Running time to wait for in running-time mode.

Flags: Read / Write

Default value: 18446744073709551615

The “target-timecode” property

  “target-timecode”          GstVideoTimeCode *

Timecode to wait for in timecode mode (object).

Flags: Read / Write

The “target-timecode-string” property

  “target-timecode-string”   gchar *

Timecode to wait for in timecode mode (string). Must take the form 00:00:00:00.

Flags: Read / Write

Default value: "00:00:00:00"

The “end-timecode” property

  “end-timecode”             GstVideoTimeCode *

Timecode to end at in timecode mode (object).

Flags: Read / Write

The “recording” property

  “recording”                gboolean

Whether the element is stopped or recording. If set to FALSE, all buffers will be dropped regardless of settings.

Flags: Read / Write

Default value: TRUE

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