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design: more STREAM_STATUS updates

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Pass the thread object in a GValue, which would allow the application to figure
out the type of the object instead of us having to explicitly code it in a
message field.
This commit is contained in:
Wim Taymans 2009-04-21 13:34:18 +02:00 committed by Wim Taymans
parent 39aa1e0e31
commit 3ff09d9b51
1 changed files with 5 additions and 12 deletions
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17
docs/design/draft-stream-status.txt
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@ -61,7 +61,7 @@ Messages
The existing STREAM_STATUS message will be further defined and implemented in
(selected) elements. The following fields will be contained in the message:
- "status", GST_TYPE_STREAM_STATUS_TYPE
- "type", GST_TYPE_STREAM_STATUS_TYPE
- a set of types to control the lifecycle of the thread:
GST_STREAM_STATUS_TYPE_CREATE: a new streaming thread is going to be
@ -77,17 +77,6 @@ Messages
GST_STREAM_STATUS_TYPE_PAUSE: a streaming thread is paused
GST_STREAM_STATUS_TYPE_STOP: a streaming thread is stopped
- "thread-object-type", GST_TYPE_THREAD_OBJECT
The type of object used for controlling the streaming thread.
GST_STREAM_THREAD_TASK: thread-object contains a GstTask object
controlling the streaming
GST_STREAM_THREAD_GTHREAD: threadobject contains a GThread that controls
the streaming.
- "thread-object", GstTask/GThread
A GstTask/GThread controlling this streaming thread. This can be NULL when
the object controlling the streaming thread is not yet created.
- "owner", GST_TYPE_ELEMENT
The owner element of the thread. The message source will contain the pad
(or one of the pads) that will produce data by this thread. If this thread
@ -96,6 +85,10 @@ Messages
element/pad what function this thread has in the context of the
application and configure the thread appropriatly.
- "object", G_TYPE, GstTask/GThread
A GstTask/GThread controlling this streaming thread. This can be NULL when
the object controlling the streaming thread is not yet created.
- "flow-return", GstFlowReturn
A status code for why the thread state changed. when threads are created
and started, this is usually GST_FLOW_OK but when they are stopping it