2005-03-28 14:54:33 +00:00
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Base classes
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------------
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GstBaseSink
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Base class for sink elements.
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- one sinkpad
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- handles state changes
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- does flushing
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- preroll with optional preview
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- pull/push mode
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- EOS handling
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FIXME: not much point making it operate in pull mode as a generic
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base class I guess...
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gst/: Simplify pad activation.
Original commit message from CVS:
* gst/base/Makefile.am:
* gst/base/README:
* gst/base/gstbasesink.c: (gst_basesink_get_type),
(gst_basesink_base_init), (gst_basesink_class_init),
(gst_basesink_pad_getcaps), (gst_basesink_init),
(gst_basesink_activate), (gst_basesink_change_state):
* gst/base/gstbasesink.h:
* gst/base/gstbasetransform.c: (gst_base_transform_get_type),
(gst_base_transform_base_init), (gst_base_transform_finalize),
(gst_base_transform_class_init), (gst_base_transform_init),
(gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps),
(gst_base_transform_event), (gst_base_transform_getrange),
(gst_base_transform_chain), (gst_base_transform_handle_buffer),
(gst_base_transform_set_property),
(gst_base_transform_get_property),
(gst_base_transform_sink_activate),
(gst_base_transform_src_activate),
(gst_base_transform_change_state):
* gst/base/gstbasetransform.h:
* gst/elements/gstidentity.c: (gst_identity_finalize),
(gst_identity_class_init), (gst_identity_init),
(gst_identity_event), (gst_identity_check_perfect),
(gst_identity_transform), (gst_identity_set_property),
(gst_identity_get_property), (gst_identity_change_state):
* gst/elements/gstidentity.h:
* gst/gstelement.c: (gst_element_get_state_func),
(gst_element_lost_state), (gst_element_pads_activate):
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active),
(gst_pad_check_pull_range), (gst_pad_pull_range):
* gst/gstpad.h:
Simplify pad activation.
Added function to check if pull_range can be performed.
Error out when pulling inactive or flushing pads.
Removed const from refcounted types as it does not make sense.
Simplify pad templates in basesink
Added base class for simple 1-to-1 transforms.
Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
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GstBaseTransform
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Base class for simple tranform filters
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- one sinkpad and one srcpad
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gst/base/: Make basesrc negotiate.
Original commit message from CVS:
* gst/base/README:
* gst/base/gstbasesink.c: (gst_base_sink_preroll_queue_empty),
(gst_base_sink_handle_object), (gst_base_sink_loop),
(gst_base_sink_change_state):
* gst/base/gstbasesink.h:
* gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_init), (gst_base_src_setcaps),
(gst_base_src_getcaps), (gst_base_src_loop),
(gst_base_src_default_negotiate), (gst_base_src_negotiate),
(gst_base_src_start), (gst_base_src_change_state):
* gst/base/gstbasesrc.h:
Make basesrc negotiate.
Handle the case where preroll fails in basesink.
Update README.
2005-07-06 13:25:26 +00:00
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- possible formats on sink and source pad implemented
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with custom transform_caps function. By default uses
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same format on sink and source.
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gst/: Simplify pad activation.
Original commit message from CVS:
* gst/base/Makefile.am:
* gst/base/README:
* gst/base/gstbasesink.c: (gst_basesink_get_type),
(gst_basesink_base_init), (gst_basesink_class_init),
(gst_basesink_pad_getcaps), (gst_basesink_init),
(gst_basesink_activate), (gst_basesink_change_state):
* gst/base/gstbasesink.h:
* gst/base/gstbasetransform.c: (gst_base_transform_get_type),
(gst_base_transform_base_init), (gst_base_transform_finalize),
(gst_base_transform_class_init), (gst_base_transform_init),
(gst_base_transform_proxy_getcaps), (gst_base_transform_setcaps),
(gst_base_transform_event), (gst_base_transform_getrange),
(gst_base_transform_chain), (gst_base_transform_handle_buffer),
(gst_base_transform_set_property),
(gst_base_transform_get_property),
(gst_base_transform_sink_activate),
(gst_base_transform_src_activate),
(gst_base_transform_change_state):
* gst/base/gstbasetransform.h:
* gst/elements/gstidentity.c: (gst_identity_finalize),
(gst_identity_class_init), (gst_identity_init),
(gst_identity_event), (gst_identity_check_perfect),
(gst_identity_transform), (gst_identity_set_property),
(gst_identity_get_property), (gst_identity_change_state):
* gst/elements/gstidentity.h:
* gst/gstelement.c: (gst_element_get_state_func),
(gst_element_lost_state), (gst_element_pads_activate):
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active),
(gst_pad_check_pull_range), (gst_pad_pull_range):
* gst/gstpad.h:
Simplify pad activation.
Added function to check if pull_range can be performed.
Error out when pulling inactive or flushing pads.
Removed const from refcounted types as it does not make sense.
Simplify pad templates in basesink
Added base class for simple 1-to-1 transforms.
Make identity subclass the base transform.
2005-03-29 16:18:12 +00:00
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- handles state changes
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- does flushing
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- push mode
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- pull mode if transform can operate on arbitrary data
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gst/: Made base source class, make fakesrc extend it.
Original commit message from CVS:
* gst/base/Makefile.am:
* gst/base/README:
* gst/base/gstbasesink.c: (gst_basesink_base_init),
(gst_basesink_pad_getcaps), (gst_basesink_pad_setcaps),
(gst_basesink_pad_buffer_alloc), (gst_basesink_init),
(gst_basesink_do_sync), (gst_basesink_chain_unlocked):
* gst/base/gstbasesrc.c: (gst_basesrc_get_type),
(gst_basesrc_base_init), (gst_basesrc_class_init),
(gst_basesrc_init), (gst_basesrc_get_formats),
(gst_basesrc_get_query_types), (gst_basesrc_query),
(gst_basesrc_get_event_mask), (gst_basesrc_event_handler),
(gst_basesrc_set_property), (gst_basesrc_get_property),
(gst_basesrc_get_range_unlocked), (gst_basesrc_get_range),
(gst_basesrc_loop), (gst_basesrc_activate),
(gst_basesrc_change_state):
* gst/base/gstbasesrc.h:
* gst/elements/gstfakesrc.c: (gst_fakesrc_base_init),
(gst_fakesrc_class_init), (gst_fakesrc_init),
(gst_fakesrc_event_handler), (gst_fakesrc_set_property),
(gst_fakesrc_get_property), (gst_fakesrc_create):
* gst/elements/gstfakesrc.h:
* gst/elements/gstfilesrc.c: (gst_filesrc_getrange),
(gst_filesrc_open_file), (gst_filesrc_loop),
(gst_filesrc_activate), (filesrc_find_peek),
(gst_filesrc_type_find):
Made base source class, make fakesrc extend it.
Add comments to basesink class.
Some filesrc cleanup.
2005-04-05 08:44:20 +00:00
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GstBaseSrc
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Base class for getrange based source elements
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- one sinkpad
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- handles state changes
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- pull/push mode
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gst/: More work on the generic source base class, implement seeking, query.
Original commit message from CVS:
* gst/base/README:
* gst/base/gstbasesrc.c: (gst_basesrc_get_type),
(gst_basesrc_init), (gst_basesrc_get_formats), (gst_basesrc_query),
(gst_basesrc_get_event_mask), (gst_basesrc_do_seek),
(gst_basesrc_event_handler), (gst_basesrc_get_range_unlocked),
(gst_basesrc_check_get_range), (gst_basesrc_loop),
(gst_basesrc_unlock), (gst_basesrc_get_size), (gst_basesrc_start),
(gst_basesrc_stop), (gst_basesrc_activate),
(gst_basesrc_change_state), (basesrc_find_peek),
(basesrc_find_suggest), (gst_basesrc_type_find):
* gst/base/gstbasesrc.h:
* gst/elements/gstfilesrc.c: (gst_filesrc_base_init),
(gst_filesrc_class_init), (gst_filesrc_init),
(gst_filesrc_finalize), (gst_filesrc_set_location),
(gst_filesrc_set_property), (gst_filesrc_get_property),
(gst_filesrc_free_parent_mmap), (gst_filesrc_map_region),
(gst_filesrc_map_small_region), (gst_filesrc_create_mmap),
(gst_filesrc_create_read), (gst_filesrc_create),
(gst_filesrc_get_size), (gst_filesrc_start), (gst_filesrc_stop):
* gst/elements/gstfilesrc.h:
* gst/gstelement.c: (gst_element_get_state_func),
(gst_element_lost_state), (gst_element_pads_activate):
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active),
(gst_pad_set_checkgetrange_function), (gst_pad_check_pull_range),
(gst_pad_pull_range):
* gst/gstpad.h:
More work on the generic source base class, implement seeking,
query.
Make filesrc extend the base source class.
Added gst_pad_set_checkgetrange_function to GstPad.
2005-04-06 17:30:48 +00:00
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- handles seeking/query
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gst/base/: Make basesrc negotiate.
Original commit message from CVS:
* gst/base/README:
* gst/base/gstbasesink.c: (gst_base_sink_preroll_queue_empty),
(gst_base_sink_handle_object), (gst_base_sink_loop),
(gst_base_sink_change_state):
* gst/base/gstbasesink.h:
* gst/base/gstbasesrc.c: (gst_base_src_class_init),
(gst_base_src_init), (gst_base_src_setcaps),
(gst_base_src_getcaps), (gst_base_src_loop),
(gst_base_src_default_negotiate), (gst_base_src_negotiate),
(gst_base_src_start), (gst_base_src_change_state):
* gst/base/gstbasesrc.h:
Make basesrc negotiate.
Handle the case where preroll fails in basesink.
Update README.
2005-07-06 13:25:26 +00:00
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GstPushSrc
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Base class for push based source elements
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