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gst/gstmessage.*: Clean up.
Original commit message from CVS: * gst/gstmessage.c: (gst_message_new_custom), (gst_message_new_eos), (gst_message_new_error), (gst_message_new_warning), (gst_message_new_tag), (gst_message_new_state_changed), (gst_message_new_clock_provide), (gst_message_new_new_clock), (gst_message_new_segment_start), (gst_message_new_segment_done), (gst_message_parse_state_changed), (gst_message_parse_clock_provide), (gst_message_parse_new_clock): * gst/gstmessage.h: Clean up. Added clock related messages. * gst/gstpipeline.c: (gst_pipeline_change_state): Post message when the clock changed. * tools/gst-launch.c: (event_loop): Print new clock.
This commit is contained in:
Wim Taymans
parent
8ad5e77140
commit
677becd06a
5 changed files with 203 additions and 84 deletions
19
ChangeLog
19
ChangeLog
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@ -1,3 +1,22 @@
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2005-10-08 Wim Taymans <wim@fluendo.com>
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* gst/gstmessage.c: (gst_message_new_custom),
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(gst_message_new_eos), (gst_message_new_error),
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(gst_message_new_warning), (gst_message_new_tag),
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(gst_message_new_state_changed), (gst_message_new_clock_provide),
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(gst_message_new_new_clock), (gst_message_new_segment_start),
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(gst_message_new_segment_done), (gst_message_parse_state_changed),
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(gst_message_parse_clock_provide), (gst_message_parse_new_clock):
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* gst/gstmessage.h:
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Clean up.
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Added clock related messages.
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* gst/gstpipeline.c: (gst_pipeline_change_state):
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Post message when the clock changed.
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* tools/gst-launch.c: (event_loop):
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Print new clock.
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2005-10-08 Tim-Philipp Müller <tim at centricular dot net>
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* tools/gst-inspect.c: (print_element_properties_info):
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213
gst/gstmessage.c
213
gst/gstmessage.c
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@ -81,10 +81,13 @@ static GstMessageQuarks message_quarks[] = {
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{GST_MESSAGE_BUFFERING, "buffering", 0},
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{GST_MESSAGE_STATE_CHANGED, "state-changed", 0},
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{GST_MESSAGE_STEP_DONE, "step-done", 0},
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{GST_MESSAGE_CLOCK_PROVIDE, "clock-provide", 0},
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{GST_MESSAGE_CLOCK_LOST, "clock-lost", 0},
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{GST_MESSAGE_NEW_CLOCK, "new-clock", 0},
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{GST_MESSAGE_STRUCTURE_CHANGE, "structure-change", 0},
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{GST_MESSAGE_STREAM_STATUS, "stream-status", 0},
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{GST_MESSAGE_APPLICATION, "application", 0},
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{GST_MESSAGE_ELEMENT, "element", 0},
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{GST_MESSAGE_SEGMENT_START, "segment-start", 0},
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{GST_MESSAGE_SEGMENT_DONE, "segment-done", 0},
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{0, NULL, 0}
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@ -219,8 +222,24 @@ _gst_message_copy (GstMessage * message)
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return copy;
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}
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static GstMessage *
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gst_message_new (GstMessageType type, GstObject * src)
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/**
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* gst_message_new_custom:
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* @type: The #GstMessageType to distinguish messages
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* @src: The object originating the message.
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* @structure: The structure for the message. The message will take ownership of
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* the structure.
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*
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* Create a new custom-typed message. This can be used for anything not
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* handled by other message-specific functions to pass a message to the
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* app. The structure field can be NULL.
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*
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* Returns: The new message.
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*
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* MT safe.
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*/
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GstMessage *
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gst_message_new_custom (GstMessageType type, GstObject * src,
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GstStructure * structure)
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{
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GstMessage *message;
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@ -237,7 +256,11 @@ gst_message_new (GstMessageType type, GstObject * src)
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message->src = NULL;
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GST_CAT_DEBUG (GST_CAT_MESSAGE, "NULL message source");
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}
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message->structure = NULL;
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if (structure) {
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gst_structure_set_parent_refcount (structure,
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&message->mini_object.refcount);
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}
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message->structure = structure;
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return message;
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}
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@ -259,7 +282,7 @@ gst_message_new_eos (GstObject * src)
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{
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GstMessage *message;
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message = gst_message_new (GST_MESSAGE_EOS, src);
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message = gst_message_new_custom (GST_MESSAGE_EOS, src, NULL);
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return message;
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}
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@ -282,14 +305,10 @@ GstMessage *
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gst_message_new_error (GstObject * src, GError * error, gchar * debug)
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{
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GstMessage *message;
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GstStructure *s;
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message = gst_message_new (GST_MESSAGE_ERROR, src);
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/* gst_structure_new takes copies of the types passed in */
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s = gst_structure_new ("GstMessageError", "gerror", GST_TYPE_G_ERROR, error,
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"debug", G_TYPE_STRING, debug, NULL);
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gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
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message->structure = s;
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message = gst_message_new_custom (GST_MESSAGE_ERROR, src,
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gst_structure_new ("GstMessageError", "gerror", GST_TYPE_G_ERROR, error,
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"debug", G_TYPE_STRING, debug, NULL));
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return message;
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}
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@ -311,14 +330,10 @@ GstMessage *
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gst_message_new_warning (GstObject * src, GError * error, gchar * debug)
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{
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GstMessage *message;
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GstStructure *s;
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message = gst_message_new (GST_MESSAGE_WARNING, src);
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/* gst_structure_new takes copies of the types passed in */
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s = gst_structure_new ("GstMessageWarning", "gerror", GST_TYPE_G_ERROR, error,
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"debug", G_TYPE_STRING, debug, NULL);
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gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
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message->structure = s;
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message = gst_message_new_custom (GST_MESSAGE_WARNING, src,
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gst_structure_new ("GstMessageWarning", "gerror", GST_TYPE_G_ERROR, error,
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"debug", G_TYPE_STRING, debug, NULL));
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return message;
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}
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@ -342,9 +357,8 @@ gst_message_new_tag (GstObject * src, GstTagList * tag_list)
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g_return_val_if_fail (GST_IS_STRUCTURE (tag_list), NULL);
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message = gst_message_new (GST_MESSAGE_TAG, src);
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gst_structure_set_parent_refcount (tag_list, &message->mini_object.refcount);
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message->structure = tag_list;
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message =
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gst_message_new_custom (GST_MESSAGE_TAG, src, (GstStructure *) tag_list);
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return message;
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}
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@ -368,16 +382,64 @@ gst_message_new_state_changed (GstObject * src,
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GstState old, GstState new, GstState pending)
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{
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GstMessage *message;
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GstStructure *s;
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message = gst_message_new (GST_MESSAGE_STATE_CHANGED, src);
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s = gst_structure_new ("GstMessageState",
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message = gst_message_new_custom (GST_MESSAGE_STATE_CHANGED, src,
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gst_structure_new ("GstMessageState",
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"old-state", GST_TYPE_STATE, (gint) old,
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"new-state", GST_TYPE_STATE, (gint) new,
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"pending-state", GST_TYPE_STATE, (gint) pending, NULL);
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gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
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message->structure = s;
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"pending-state", GST_TYPE_STATE, (gint) pending, NULL));
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return message;
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}
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/**
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* gst_message_new_clock_provide:
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* @src: The object originating the message.
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* @ready: TRUE if the sender can provide a clock
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*
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* Create a clock provide message. This message is posted whenever an
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* element is ready to provide a clock or lost its ability to provide
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* a clock (maybe because it paused or became EOS).
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*
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* This message is mainly used internally to manage the clock
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* selection.
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*
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* Returns: The new provide clock message.
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*
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* MT safe.
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*/
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GstMessage *
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gst_message_new_clock_provide (GstObject * src, gboolean ready)
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{
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GstMessage *message;
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message = gst_message_new_custom (GST_MESSAGE_CLOCK_PROVIDE, src,
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gst_structure_new ("GstMessageClockProvide",
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"ready", G_TYPE_BOOLEAN, ready, NULL));
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return message;
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}
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/**
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* gst_message_new_new_clock:
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* @src: The object originating the message.
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* @clock: the new selected clock
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*
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* Create a new clock message. This message is posted whenever the
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* pipeline selectes a new clock for the pipeline.
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*
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* Returns: The new new clock message.
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*
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* MT safe.
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*/
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GstMessage *
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gst_message_new_new_clock (GstObject * src, GstClock * clock)
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{
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GstMessage *message;
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message = gst_message_new_custom (GST_MESSAGE_NEW_CLOCK, src,
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gst_structure_new ("GstMessageNewClock",
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"clock", GST_TYPE_CLOCK, clock, NULL));
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return message;
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}
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@ -400,14 +462,10 @@ GstMessage *
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gst_message_new_segment_start (GstObject * src, GstClockTime timestamp)
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{
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GstMessage *message;
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GstStructure *s;
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message = gst_message_new (GST_MESSAGE_SEGMENT_START, src);
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s = gst_structure_new ("GstMessageSegmentStart", "timestamp", G_TYPE_INT64,
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(gint64) timestamp, NULL);
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gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
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message->structure = s;
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message = gst_message_new_custom (GST_MESSAGE_SEGMENT_START, src,
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gst_structure_new ("GstMessageSegmentStart", "timestamp", G_TYPE_INT64,
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(gint64) timestamp, NULL));
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return message;
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}
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@ -430,14 +488,10 @@ GstMessage *
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gst_message_new_segment_done (GstObject * src, GstClockTime timestamp)
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{
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GstMessage *message;
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GstStructure *s;
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message = gst_message_new (GST_MESSAGE_SEGMENT_DONE, src);
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s = gst_structure_new ("GstMessageSegmentDone", "timestamp", G_TYPE_INT64,
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(gint64) timestamp, NULL);
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gst_structure_set_parent_refcount (s, &message->mini_object.refcount);
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message->structure = s;
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message = gst_message_new_custom (GST_MESSAGE_SEGMENT_DONE, src,
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gst_structure_new ("GstMessageSegmentDone", "timestamp", G_TYPE_INT64,
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(gint64) timestamp, NULL));
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return message;
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}
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@ -478,36 +532,6 @@ gst_message_new_element (GstObject * src, GstStructure * structure)
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return gst_message_new_custom (GST_MESSAGE_ELEMENT, src, structure);
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}
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/**
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* gst_message_new_custom:
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* @type: The #GstMessageType to distinguish messages
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* @src: The object originating the message.
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* @structure: The structure for the message. The message will take ownership of
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* the structure.
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*
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* Create a new custom-typed message. This can be used for anything not
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* handled by other message-specific functions to pass a message to the
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* app. The structure field can be NULL.
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*
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* Returns: The new message.
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*
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* MT safe.
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*/
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GstMessage *
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gst_message_new_custom (GstMessageType type, GstObject * src,
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GstStructure * structure)
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{
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GstMessage *message;
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message = gst_message_new (type, src);
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if (structure) {
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gst_structure_set_parent_refcount (structure,
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&message->mini_object.refcount);
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message->structure = structure;
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}
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return message;
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}
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/**
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* gst_message_get_structure:
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* @message: The #GstMessage.
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@ -575,6 +599,51 @@ gst_message_parse_state_changed (GstMessage * message, GstState * old,
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GST_TYPE_STATE, (gint *) pending);
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}
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/**
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* gst_message_parse_clock_provide:
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* @message: A valid #GstMessage of type GST_MESSAGE_CLOCK_PROVIDE.
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* @ready: If the src can provide a clock or not.
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*
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* Extracts the ready flag from the GstMessage.
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*
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* MT safe.
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*/
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void
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gst_message_parse_clock_provide (GstMessage * message, gboolean * ready)
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{
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g_return_if_fail (GST_IS_MESSAGE (message));
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g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_CLOCK_PROVIDE);
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if (ready)
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gst_structure_get_boolean (message->structure, "ready", ready);
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}
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/**
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* gst_message_parse_new_clock:
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* @message: A valid #GstMessage of type GST_MESSAGE_NEW_CLOCK.
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* @clock: A pointer to hold the selected new clock
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*
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* Extracts the new clock from the GstMessage.
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* The clock object returned remains valid until the message is freed.
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*
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* MT safe.
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*/
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void
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gst_message_parse_new_clock (GstMessage * message, GstClock ** clock)
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{
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const GValue *clock_gvalue;
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g_return_if_fail (GST_IS_MESSAGE (message));
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g_return_if_fail (GST_MESSAGE_TYPE (message) == GST_MESSAGE_NEW_CLOCK);
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clock_gvalue = gst_structure_get_value (message->structure, "clock");
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g_return_if_fail (clock_gvalue != NULL);
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g_return_if_fail (G_VALUE_TYPE (clock_gvalue) == GST_TYPE_CLOCK);
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if (clock)
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*clock = (GstClock *) g_value_get_object (clock_gvalue);
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}
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/**
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* gst_message_parse_error:
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* @message: A valid #GstMessage of type GST_MESSAGE_ERROR.
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@ -38,6 +38,11 @@ typedef struct _GstMessageClass GstMessageClass;
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* @GST_MESSAGE_BUFFERING: the pipeline is buffering
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* @GST_MESSAGE_STATE_CHANGED: a state change happened
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* @GST_MESSAGE_STEP_DONE: a framestep finished.
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* @GST_MESSAGE_CLOCK_PROVIDE: an element notifies it capability of providing
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* a clock.
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* @GST_MESSAGE_CLOCK_LOST: The current clock as selected by the pipeline became
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* unusable. The pipeline will select a new clock on the
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* next PLAYING state change.
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* @GST_MESSAGE_NEW_CLOCK: a new clock was selected in the pipeline
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* @GST_MESSAGE_STRUCTURE_CHANGE: the structure of the pipeline changed.
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* @GST_MESSAGE_STREAM_STATUS: status about a stream, emitted when it starts,
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@ -50,6 +55,7 @@ typedef struct _GstMessageClass GstMessageClass;
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* @GST_MESSAGE_SEGMENT_DONE: pipeline completed playback of a segment.
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* @GST_MESSAGE_ANY: mask for all of the above messages.
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*/
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/* NOTE: keep in sync with quark registration in gstmessage.c */
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typedef enum
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{
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GST_MESSAGE_UNKNOWN = 0,
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@ -61,13 +67,15 @@ typedef enum
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GST_MESSAGE_BUFFERING = (1 << 5),
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GST_MESSAGE_STATE_CHANGED = (1 << 6),
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GST_MESSAGE_STEP_DONE = (1 << 7),
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GST_MESSAGE_NEW_CLOCK = (1 << 8),
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GST_MESSAGE_STRUCTURE_CHANGE = (1 << 9),
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GST_MESSAGE_STREAM_STATUS = (1 << 10),
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GST_MESSAGE_APPLICATION = (1 << 11),
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GST_MESSAGE_ELEMENT = (1 << 12),
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GST_MESSAGE_SEGMENT_START = (1 << 13),
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GST_MESSAGE_SEGMENT_DONE = (1 << 14),
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GST_MESSAGE_CLOCK_PROVIDE = (1 << 8),
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GST_MESSAGE_CLOCK_LOST = (1 << 9),
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GST_MESSAGE_NEW_CLOCK = (1 << 10),
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GST_MESSAGE_STRUCTURE_CHANGE = (1 << 11),
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GST_MESSAGE_STREAM_STATUS = (1 << 12),
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GST_MESSAGE_APPLICATION = (1 << 13),
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GST_MESSAGE_ELEMENT = (1 << 14),
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GST_MESSAGE_SEGMENT_START = (1 << 15),
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GST_MESSAGE_SEGMENT_DONE = (1 << 16),
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GST_MESSAGE_ANY = 0xffffffff
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} GstMessageType;
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@ -146,6 +154,9 @@ GstMessage * gst_message_new_warning (GstObject * src, GError * error, gchar *
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GstMessage * gst_message_new_tag (GstObject * src, GstTagList * tag_list);
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GstMessage * gst_message_new_state_changed (GstObject * src, GstState old_state,
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GstState new_state, GstState pending);
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GstMessage * gst_message_new_clock_provide (GstObject * src, gboolean ready);
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GstMessage * gst_message_new_clock_lost (GstObject * src);
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GstMessage * gst_message_new_new_clock (GstObject * src, GstClock *clock);
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GstMessage * gst_message_new_segment_start (GstObject * src, GstClockTime timestamp);
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GstMessage * gst_message_new_segment_done (GstObject * src, GstClockTime timestamp);
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GstMessage * gst_message_new_application (GstObject * src, GstStructure * structure);
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@ -159,6 +170,8 @@ void gst_message_parse_warning (GstMessage *message, GError **gerror, gchar **d
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void gst_message_parse_tag (GstMessage *message, GstTagList **tag_list);
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void gst_message_parse_state_changed (GstMessage *message, GstState *old_state,
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GstState *new_state, GstState *pending);
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void gst_message_parse_clock_provide (GstMessage *message, gboolean *ready);
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void gst_message_parse_new_clock (GstMessage *message, GstClock **clock);
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void gst_message_parse_segment_start (GstMessage *message, GstClockTime *timestamp);
|
||||
void gst_message_parse_segment_done (GstMessage *message, GstClockTime *timestamp);
|
||||
|
||||
|
|
|
|||
|
|
@ -316,15 +316,13 @@ gst_pipeline_change_state (GstElement * element, GstStateChange transition)
|
|||
/* when going to playing, select a clock */
|
||||
if ((clock = gst_element_provide_clock (element))) {
|
||||
GstClockTime start_time;
|
||||
|
||||
/* distribute the clock */
|
||||
gst_element_set_clock (element, clock);
|
||||
gboolean new_clock;
|
||||
|
||||
/* get start time */
|
||||
start_time = gst_clock_get_time (clock);
|
||||
gst_object_unref (clock);
|
||||
|
||||
GST_LOCK (element);
|
||||
new_clock = element->clock != clock;
|
||||
element->base_time = start_time -
|
||||
pipeline->stream_time + pipeline->delay;
|
||||
GST_DEBUG ("stream_time=%" GST_TIME_FORMAT ", start_time=%"
|
||||
|
|
@ -332,6 +330,17 @@ gst_pipeline_change_state (GstElement * element, GstStateChange transition)
|
|||
GST_TIME_ARGS (pipeline->stream_time),
|
||||
GST_TIME_ARGS (start_time), GST_TIME_ARGS (element->base_time));
|
||||
GST_UNLOCK (element);
|
||||
|
||||
/* now distribute the clock */
|
||||
gst_element_set_clock (element, clock);
|
||||
|
||||
if (new_clock) {
|
||||
/* if we selected a new clock, let the app know about it */
|
||||
gst_element_post_message (element,
|
||||
gst_message_new_new_clock (GST_OBJECT_CAST (element), clock));
|
||||
}
|
||||
|
||||
gst_object_unref (clock);
|
||||
} else {
|
||||
GST_DEBUG ("no clock, using base time of 0");
|
||||
gst_element_set_base_time (element, 0);
|
||||
|
|
|
|||
|
|
@ -393,6 +393,15 @@ event_loop (GstElement * pipeline, gboolean blocking)
|
|||
}
|
||||
|
||||
switch (GST_MESSAGE_TYPE (message)) {
|
||||
case GST_MESSAGE_NEW_CLOCK:
|
||||
{
|
||||
GstClock *clock;
|
||||
|
||||
gst_message_parse_new_clock (message, &clock);
|
||||
|
||||
g_print ("new clock: %p\n", clock);
|
||||
break;
|
||||
}
|
||||
case GST_MESSAGE_EOS:
|
||||
g_print (_
|
||||
("Got EOS from element \"%s\".\n"),
|
||||
|
|
|
|||
Loading…
Reference in a new issue