gst_bus_post (bus, gst_message_new_eos());
     

— Class: <gst-message>

— Function: gst-message-type-to-quark (self <gst-message-type*>)   (ret unsigned-int)

Get the unique quark for the given message type.

type

the message type

ret

the quark associated with the message type

— Function: gst-message-type-get-name (self <gst-message-type*>)   (ret mchars)

Get a printable name for the given message type. Do not modify or free.

type

the message type

ret

a reference to the static name of the message.

— Function: gst-message-get-structure (self <gst-message>)   (ret <gst-structure>)
— Method: get-structure

Access the structure of the message.

message

The <gst-message>.

ret

The structure of the message. The structure is still owned by the message, which means that you should not free it and that the pointer becomes invalid when you free the message. MT safe.

— Function: gst-message-new-application (src <gst-object>) (structure <gst-structure>)   (ret <gst-message>)

Create a new application-typed message. GStreamer will never create these messages; they are a gift from us to you. Enjoy.

src

The object originating the message.

structure

The structure for the message. The message will take ownership of the structure.

ret

The new application message. MT safe.

— Function: gst-message-new-clock-provide (src <gst-object>) (clock <gst-clock>) (ready bool)   (ret <gst-message>)

Create a clock provide message. This message is posted whenever an element is ready to provide a clock or lost its ability to provide a clock (maybe because it paused or became EOS).

This message is mainly used internally to manage the clock selection.

src

The object originating the message.

clock

The clock it provides

ready

TRUE if the sender can provide a clock

ret

The new provide clock message. MT safe.

— Function: gst-message-new-clock-lost (src <gst-object>) (clock <gst-clock>)   (ret <gst-message>)

Create a clock lost message. This message is posted whenever the clock is not valid anymore.

If this message is posted by the pipeline, the pipeline will select a new clock again when it goes to PLAYING. It might therefore be needed to set the pipeline to PAUSED and PLAYING again.

src

The object originating the message.

clock

the clock that was lost

ret

The new clock lost message. MT safe.

— Function: gst-message-new-custom (type <gst-message-type>) (src <gst-object>) (structure <gst-structure>)   (ret <gst-message>)

Create a new custom-typed message. This can be used for anything not handled by other message-specific functions to pass a message to the app. The structure field can be NULL.

type

The <gst-message-type> to distinguish messages

src

The object originating the message.

structure

The structure for the message. The message will take ownership of the structure.

ret

The new message. MT safe.

— Function: gst-message-new-element (src <gst-object>) (structure <gst-structure>)   (ret <gst-message>)

Create a new element-specific message. This is meant as a generic way of allowing one-way communication from an element to an application, for example "the firewire cable was unplugged". The format of the message should be documented in the element's documentation. The structure field can be NULL.

src

The object originating the message.

structure

The structure for the message. The message will take ownership of the structure.

ret

The new element message. MT safe.

— Function: gst-message-new-error (src <gst-object>) (error <g-error*>) (debug mchars)   (ret <gst-message>)

Create a new error message. The message will copy error and debug. This message is posted by element when a fatal event occured. The pipeline will probably (partially) stop. The application receiving this message should stop the pipeline.

src

The object originating the message.

error

The GError for this message.

debug

A debugging string for something or other.

ret

The new error message. MT safe.

— Function: gst-message-new-new-clock (src <gst-object>) (clock <gst-clock>)   (ret <gst-message>)

Create a new clock message. This message is posted whenever the pipeline selectes a new clock for the pipeline.

src

The object originating the message.

clock

the new selected clock

ret

The new new clock message. MT safe.

— Function: gst-message-new-segment-done (src <gst-object>) (format <gst-format>) (position int64)   (ret <gst-message>)

Create a new segment done message. This message is posted by elements that finish playback of a segment as a result of a segment seek. This message is received by the application after all elements that posted a segment_start have posted the segment_done.

src

The object originating the message.

format

The format of the position being done

position

The position of the segment being done

ret

The new segment done message. MT safe.

— Function: gst-message-new-segment-start (src <gst-object>) (format <gst-format>) (position int64)   (ret <gst-message>)

Create a new segment message. This message is posted by elements that start playback of a segment as a result of a segment seek. This message is not received by the application but is used for maintenance reasons in container elements.

src

The object originating the message.

format

The format of the position being played

position

The position of the segment being played

ret

The new segment start message. MT safe.

— Function: gst-message-new-state-changed (src <gst-object>) (oldstate <gst-state>) (newstate <gst-state>) (pending <gst-state>)   (ret <gst-message>)

Create a state change message. This message is posted whenever an element changed its state.

src

the object originating the message

oldstate

the previous state

newstate

the new (current) state

pending

the pending (target) state

ret

The new state change message. MT safe.

— Function: gst-message-new-tag (src <gst-object>) (tag_list <gst-tag-list*>)   (ret <gst-message>)

Create a new tag message. The message will take ownership of the tag list. The message is posted by elements that discovered a new taglist.

src

The object originating the message.

tag-list

The tag list for the message.

ret

The new tag message. MT safe.

— Function: gst-message-new-warning (src <gst-object>) (error <g-error*>) (debug mchars)   (ret <gst-message>)

Create a new warning message. The message will make copies of error and debug.

src

The object originating the message.

error

The GError for this message.

debug

A debugging string for something or other.

ret

The new warning message. MT safe.

— Function: gst-message-new-duration (src <gst-object>) (format <gst-format>) (duration int64)   (ret <gst-message>)

Create a new duration message. This message is posted by elements that know the duration of a stream in a specific format. This message is received by bins and is used to calculate the total duration of a pipeline. Elements may post a duration message with a duration of GST_CLOCK_TIME_NONE to indicate that the duration has changed and the cached duration should be discarded. The new duration can then be retrieved via a query.

src

The object originating the message.

format

The format of the duration

duration

The new duration

ret

The new duration message. MT safe.

— Function: gst-message-new-state-dirty (src <gst-object>)   (ret <gst-message>)

Create a state dirty message. This message is posted whenever an element changed its state asynchronously and is used internally to update the states of container objects.

src

the object originating the message

ret

The new state dirty message. MT safe.