View source for GStreamer pre-record element/Overview

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By installing the GstPreRecord plugin you can install 2 elements, prerecord and prerecordsink. Both elements are used differently but with similar goals in terms of functionality and features available for user applications. You can read the [[GStreamer_pre-record_element/User_Guide | User Guide]] section for extended elements functionality descriptions and use cases.

==GstPreRecord==
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Factory Details:
  Rank                     none (0)
  Long-name                Pre-Record
  Klass                    Generic
  Description              Pre-records data continuously into a FIFO
  Author                   Melissa Montero <melissa.montero@ridgerun.com>

Plugin Details:
  Name                     prerecord
  Description              GStreamer Pre-Record plugin
  Filename                 /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstprerecord.so
  Version                  1.5.0
  License                  Proprietary
  Source module            gst-prerecord
  Binary package           GstPreRecord
  Origin URL               http://www.ridgerun.com

GObject
 +----GInitiallyUnowned
       +----GstObject
             +----GstElement
                   +----GstBin
                         +----GstPreRecord

Implemented Interfaces:
  GstChildProxy

Pad Templates:
  SRC template: 'src%d'
    Availability: Sometimes
    Capabilities:
      ANY
  
  SINK template: 'sink%d'
    Availability: On request
    Capabilities:
      ANY

Element has no clocking capabilities.
Element has no URI handling capabilities.

Pads:
  none

Element Properties:
  name                : The name of the object
                        flags: readable, writable
                        String. Default: "prerecord0"
  parent              : The parent of the object
                        flags: readable, writable
                        Object of type "GstObject"
  async-handling      : The bin will handle Asynchronous state changes
                        flags: readable, writable
                        Boolean. Default: false
  message-forward     : Forwards all children messages
                        flags: readable, writable
                        Boolean. Default: false
  buf-time            : Minimum amount of data that will be buffered - may contain more (in ms, 0=disable)
                        flags: readable, writable
                        Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0 
  buffering           : Whether to keep buf-time buffers (buffering) or to pass the buffereddata downstream (debuffering)
                        flags: readable, writable
                        Boolean. Default: false
  on-key-frame        : Wait for a video key frame to start debuffering.
                        flags: readable, writable
                        Boolean. Default: false

Element Signals:
  "pad-added" :  void user_function (GstElement* object,
                                     GstPad* arg0,
                                     gpointer user_data);
  "pad-removed" :  void user_function (GstElement* object,
                                       GstPad* arg0,
                                       gpointer user_data);
  "no-more-pads" :  void user_function (GstElement* object,
                                        gpointer user_data);
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==GstPreRecordSink==

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Factory Details:
  Rank                     none (0)
  Long-name                PreRecordSink
  Klass                    Generic
  Description              Pre-records data continuously into a FIFO and creates an MP4 video file when trigger is enabled
  Author                   RidgeRun <support@ridgerun.com>

Plugin Details:
  Name                     prerecord
  Description              GStreamer Pre-Record plugin
  Filename                 /usr/lib/x86_64-linux-gnu/gstreamer-1.0/libgstprerecord.so
  Version                  1.5.0
  License                  Proprietary
  Source module            gst-prerecord
  Binary package           GstPreRecord
  Origin URL               http://www.ridgerun.com

GObject
 +----GInitiallyUnowned
       +----GstObject
             +----GstElement
                   +----GstBin
                         +----GstPreRecordSink

Implemented Interfaces:
  GstChildProxy

Pad Templates:
  SINK template: 'sink%d'
    Availability: On request
    Capabilities:
      ANY

Element has no clocking capabilities.
Element has no URI handling capabilities.

Pads:
  none

Element Properties:
  name                : The name of the object
                        flags: readable, writable
                        String. Default: "prerecordsink0"
  parent              : The parent of the object
                        flags: readable, writable
                        Object of type "GstObject"
  async-handling      : The bin will handle Asynchronous state changes
                        flags: readable, writable
                        Boolean. Default: false
  message-forward     : Forwards all children messages
                        flags: readable, writable
                        Boolean. Default: false
  buf-time            : Minimum amount of data that will be buffered - may contain more (in ms, 0=disable)
                        flags: readable, writable
                        Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0 
  max-buf-time        : Exact amount of data that will be buffered (in ms, 0=disable)
                        flags: readable, writable
                        Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0 
  post-rec-time       : Max time to record after buffering (in ms, 0=buf_time)
                        flags: readable, writable
                        Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0 
  buffering           : Whether to keep buf-time buffers (buffering) or to pass the buffereddata downstream (debuffering)
                        flags: readable, writable
                        Boolean. Default: true
  on-key-frame        : Wait for a video key frame to start debuffering.
                        flags: readable, writable
                        Boolean. Default: false
  location            : Format for the location of the files to write
                        flags: readable, writable
                        String. Default: null

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