终于找到你了gstreamer appsink

最新推荐文章于 2024-09-23 18:00:27 发布

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最新推荐文章于 2024-09-23 18:00:27 发布

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分类专栏： GStreamer

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beijing:~ # gst-inspect-1.0 appsink
Factory Details:
Rank                     none (0)
Long-name                AppSink
Klass                    Generic/Sink
Description              Allow the application to get access to raw buffer
Author                   David Schleef <ds@schleef.org>, Wim Taymans <wim.taymans@gmail.com>

Plugin Details:
Name                     app
Description              Elements used to communicate with applications
Filename                 /usr/lib64/gstreamer-1.0/libgstapp.so
Version                  1.4.3
License                  LGPL
Source module            gst-plugins-base
Source release date      2014-09-24
Binary package           GStreamer Base Plug-ins source release
Origin URL               Unknown package origin

GObject
+----GInitiallyUnowned
       +----GstObject
             +----GstElement
                   +----GstBaseSink
                         +----GstAppSink

实现的接口:
GstURIHandler

Pad Templates:
SINK template: 'sink'
    Availability: Always
    Capabilities:
      ANY

Element Flags:
no flags set

Element Implementation:
Has change_state() function: gst_base_sink_change_state

Element has no clocking capabilities.

URI handling capabilities:
Element can act as sink.
Supported URI protocols:
    appsink

Pads:
SINK: 'sink'
    Implementation:
      Has chainfunc(): gst_base_sink_chain
      Has custom eventfunc(): gst_base_sink_event
      Has custom queryfunc(): gst_base_sink_sink_query
      Has custom iterintlinkfunc(): gst_pad_iterate_internal_links_default
    Pad Template: 'sink'

Element Properties:
name                : The name of the object
                        flags: 可读, 可写
                        String. Default: "appsink0"
parent              : The parent of the object
                        flags: 可读, 可写
                        Object of type "GstObject"
sync                : Sync on the clock
                        flags: 可读, 可写
                        Boolean. Default: true
max-lateness        : Maximum number of nanoseconds that a buffer can be late before it is dropped (-1 unlimited)
                        flags: 可读, 可写
                        Integer64. Range: -1 - 9223372036854775807 Default: -1
qos                 : Generate Quality-of-Service events upstream
                        flags: 可读, 可写
                        Boolean. Default: false
async               : Go asynchronously to PAUSED
                        flags: 可读, 可写
                        Boolean. Default: true
ts-offset           : Timestamp offset in nanoseconds
                        flags: 可读, 可写
                        Integer64. Range: -9223372036854775808 - 9223372036854775807 Default: 0
enable-last-sample : Enable the last-sample property
                        flags: 可读, 可写
                        Boolean. Default: true
last-sample         : The last sample received in the sink
                        flags: 可读
                        Boxed pointer of type "GstSample"
blocksize           : Size in bytes to pull per buffer (0 = default)
                        flags: 可读, 可写
                        Unsigned Integer. Range: 0 - 4294967295 Default: 4096
render-delay        : Additional render delay of the sink in nanoseconds
                        flags: 可读, 可写
                        Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
throttle-time       : The time to keep between rendered buffers (0 = disabled)
                        flags: 可读, 可写
                        Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
max-bitrate         : The maximum bits per second to render (0 = disabled)
                        flags: 可读, 可写
                        Unsigned Integer64. Range: 0 - 18446744073709551615 Default: 0
caps                : The allowed caps for the sink pad
                        flags: 可读, 可写
                        Caps (NULL)
eos                 : Check if the sink is EOS or not started
                        flags: 可读
                        Boolean. Default: true
emit-signals        : Emit new-preroll and new-sample signals
                        flags: 可读, 可写
                        Boolean. Default: false
max-buffers         : The maximum number of buffers to queue internally (0 = unlimited)
                        flags: 可读, 可写
                        Unsigned Integer. Range: 0 - 4294967295 Default: 0
drop                : Drop old buffers when the buffer queue is filled
                        flags: 可读, 可写
                        Boolean. Default: false

Element Signals:
"eos" : void user_function (GstElement* object,
                               gpointer user_data);
"new-preroll" : GstFlowReturn user_function (GstElement* object,
                                                gpointer user_data);
"new-sample" : GstFlowReturn user_function (GstElement* object,
                                               gpointer user_data);

Element Actions:
"pull-preroll" : GstSample * user_function (GstElement* object);
"pull-sample" : GstSample * user_function (GstElement* object);
beijing:~ #