gstpad.sgml

gnash 在pc和嵌入式下开发需要的源码

<!-- ##### SECTION Title ##### -->
GstPad

<!-- ##### SECTION Short_Description ##### -->


<!-- ##### SECTION Long_Description ##### -->
<para>

</para>

<!-- ##### SECTION See_Also ##### -->
<para>

</para>

<!-- ##### SECTION Stability_Level ##### -->


<!-- ##### STRUCT GstPad ##### -->
<para>

</para>

@element_private: 
@padtemplate: 
@direction: 
@stream_rec_lock: 
@task: 
@preroll_lock: 
@preroll_cond: 
@block_cond: 
@block_callback: 
@block_data: 
@caps: 
@getcapsfunc: 
@setcapsfunc: 
@acceptcapsfunc: 
@fixatecapsfunc: 
@activatefunc: 
@activatepushfunc: 
@activatepullfunc: 
@linkfunc: 
@unlinkfunc: 
@peer: 
@sched_private: 
@chainfunc: 
@checkgetrangefunc: 
@getrangefunc: 
@eventfunc: 
@mode: 
@querytypefunc: 
@queryfunc: 
@intlinkfunc: 
@bufferallocfunc: 
@do_buffer_signals: 
@do_event_signals: 

<!-- ##### SIGNAL GstPad::have-data ##### -->
<para>

</para>

@gstpad: the object which received the signal.
@arg1: 
@Returns: 

<!-- ##### SIGNAL GstPad::linked ##### -->
<para>

</para>

@gstpad: the object which received the signal.
@arg1: 

<!-- ##### SIGNAL GstPad::request-link ##### -->
<para>

</para>

@gstpad: the object which received the signal.

<!-- ##### SIGNAL GstPad::unlinked ##### -->
<para>

</para>

@gstpad: the object which received the signal.
@arg1: 

<!-- ##### ARG GstPad:caps ##### -->
<para>

</para>

<!-- ##### ARG GstPad:direction ##### -->
<para>

</para>

<!-- ##### ARG GstPad:template ##### -->
<para>

</para>

<!-- ##### ENUM GstPadDirection ##### -->
<para>

</para>

@GST_PAD_UNKNOWN: 
@GST_PAD_SRC: 
@GST_PAD_SINK: 

<!-- ##### ENUM GstPadFlags ##### -->
<para>

</para>

@GST_PAD_BLOCKED: 
@GST_PAD_FLUSHING: 
@GST_PAD_IN_GETCAPS: 
@GST_PAD_IN_SETCAPS: 
@GST_PAD_BLOCKING: 
@GST_PAD_FLAG_LAST: 

<!-- ##### ENUM GstPadLinkReturn ##### -->
<para>

</para>

@GST_PAD_LINK_OK: 
@GST_PAD_LINK_WRONG_HIERARCHY: 
@GST_PAD_LINK_WAS_LINKED: 
@GST_PAD_LINK_WRONG_DIRECTION: 
@GST_PAD_LINK_NOFORMAT: 
@GST_PAD_LINK_NOSCHED: 
@GST_PAD_LINK_REFUSED: 

<!-- ##### MACRO GST_PAD_LINK_FAILED ##### -->
<para>

</para>

@ret: 


<!-- ##### MACRO GST_PAD_LINK_SUCCESSFUL ##### -->
<para>

</para>

@ret: 


<!-- ##### ENUM GstFlowReturn ##### -->
<para>

</para>

@GST_FLOW_CUSTOM_SUCCESS: 
@GST_FLOW_RESEND: 
@GST_FLOW_OK: 
@GST_FLOW_NOT_LINKED: 
@GST_FLOW_WRONG_STATE: 
@GST_FLOW_UNEXPECTED: 
@GST_FLOW_NOT_NEGOTIATED: 
@GST_FLOW_ERROR: 
@GST_FLOW_NOT_SUPPORTED: 
@GST_FLOW_CUSTOM_ERROR: 

<!-- ##### ENUM GstActivateMode ##### -->
<para>

</para>

@GST_ACTIVATE_NONE: 
@GST_ACTIVATE_PUSH: 
@GST_ACTIVATE_PULL: 

<!-- ##### MACRO gst_pad_get_name ##### -->
<para>

</para>

@pad: 


<!-- ##### FUNCTION gst_pad_get_direction ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### MACRO gst_pad_get_parent ##### -->
<para>

</para>

@pad: 


<!-- ##### FUNCTION gst_pad_get_parent_element ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_pad_template ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_link ##### -->
<para>

</para>

@srcpad: 
@sinkpad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_unlink ##### -->
<para>

</para>

@srcpad: 
@sinkpad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_is_linked ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_can_link ##### -->
<para>

</para>

@srcpad: 
@sinkpad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_caps ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_allowed_caps ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_negotiated_caps ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_pad_template_caps ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_caps ##### -->
<para>

</para>

@pad: 
@caps: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_peer ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_peer_get_caps ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_use_fixed_caps ##### -->
<para>

</para>

@pad: 


<!-- ##### FUNCTION gst_pad_is_active ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_blocked ##### -->
<para>

</para>

@pad: 
@blocked: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_blocked_async ##### -->
<para>

</para>

@pad: 
@blocked: 
@callback: 
@user_data: 
@Returns: 


<!-- ##### USER_FUNCTION GstPadBlockCallback ##### -->
<para>

</para>

@pad: 
@blocked: 
@user_data: 


<!-- ##### FUNCTION gst_pad_is_blocked ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_is_blocking ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_add_data_probe ##### -->
<para>

</para>

@pad: 
@handler: 
@data: 
@Returns: 


<!-- ##### FUNCTION gst_pad_add_buffer_probe ##### -->
<para>

</para>

@pad: 
@handler: 
@data: 
@Returns: 


<!-- ##### FUNCTION gst_pad_add_event_probe ##### -->
<para>

</para>

@pad: 
@handler: 
@data: 
@Returns: 


<!-- ##### FUNCTION gst_pad_remove_data_probe ##### -->
<para>

</para>

@pad: 
@handler_id: 


<!-- ##### FUNCTION gst_pad_remove_buffer_probe ##### -->
<para>

</para>

@pad: 
@handler_id: 


<!-- ##### FUNCTION gst_pad_remove_event_probe ##### -->
<para>

</para>

@pad: 
@handler_id: 


<!-- ##### FUNCTION gst_pad_new ##### -->
<para>

</para>

@name: 
@direction: 
@Returns: 


<!-- ##### FUNCTION gst_pad_new_from_template ##### -->
<para>

</para>

@templ: 
@name: 
@Returns: 


<!-- ##### FUNCTION gst_pad_new_from_static_template ##### -->
<para>

</para>

@templ: 
@name: 
@Returns: 


<!-- ##### FUNCTION gst_pad_alloc_buffer ##### -->
<para>

</para>

@pad: 
@offset: 
@size: 
@caps: 
@buf: 
@Returns: 


<!-- ##### FUNCTION gst_pad_alloc_buffer_and_set_caps ##### -->
<para>

</para>

@pad: 
@offset: 
@size: 
@caps: 
@buf: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_bufferalloc_function ##### -->
<para>

</para>

@pad: 
@bufalloc: 


<!-- ##### USER_FUNCTION GstPadBufferAllocFunction ##### -->
<para>

</para>

@pad: 
@offset: 
@size: 
@caps: 
@buf: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_chain_function ##### -->
<para>

</para>

@pad: 
@chain: 


<!-- ##### USER_FUNCTION GstPadChainFunction ##### -->
<para>

</para>

@pad: 
@buffer: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_checkgetrange_function ##### -->
<para>

</para>

@pad: 
@check: 


<!-- ##### USER_FUNCTION GstPadCheckGetRangeFunction ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_range ##### -->
<para>

</para>

@pad: 
@offset: 
@size: 
@buffer: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_getrange_function ##### -->
<para>

</para>

@pad: 
@get: 


<!-- ##### USER_FUNCTION GstPadGetRangeFunction ##### -->
<para>

</para>

@pad: 
@offset: 
@length: 
@buffer: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_event_function ##### -->
<para>

</para>

@pad: 
@event: 


<!-- ##### USER_FUNCTION GstPadEventFunction ##### -->
<para>

</para>

@pad: 
@event: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_link_function ##### -->
<para>

</para>

@pad: 
@link: 


<!-- ##### USER_FUNCTION GstPadLinkFunction ##### -->
<para>

</para>

@pad: 
@peer: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_unlink_function ##### -->
<para>

</para>

@pad: 
@unlink: 


<!-- ##### USER_FUNCTION GstPadUnlinkFunction ##### -->
<para>

</para>

@pad: 


<!-- ##### FUNCTION gst_pad_accept_caps ##### -->
<para>

</para>

@pad: 
@caps: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_acceptcaps_function ##### -->
<para>

</para>

@pad: 
@acceptcaps: 


<!-- ##### USER_FUNCTION GstPadAcceptCapsFunction ##### -->
<para>

</para>

@pad: 
@caps: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_getcaps_function ##### -->
<para>

</para>

@pad: 
@getcaps: 


<!-- ##### USER_FUNCTION GstPadGetCapsFunction ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_proxy_getcaps ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_setcaps_function ##### -->
<para>

</para>

@pad: 
@setcaps: 


<!-- ##### USER_FUNCTION GstPadSetCapsFunction ##### -->
<para>

</para>

@pad: 
@caps: 
@Returns: 


<!-- ##### FUNCTION gst_pad_proxy_setcaps ##### -->
<para>

</para>

@pad: 
@caps: 
@Returns: 


<!-- ##### FUNCTION gst_pad_fixate_caps ##### -->
<para>

</para>

@pad: 
@caps: 


<!-- ##### FUNCTION gst_pad_set_fixatecaps_function ##### -->
<para>

</para>

@pad: 
@fixatecaps: 


<!-- ##### USER_FUNCTION GstPadFixateCapsFunction ##### -->
<para>

</para>

@pad: 
@caps: 


<!-- ##### FUNCTION gst_pad_get_fixed_caps_func ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_peer_accept_caps ##### -->
<para>

</para>

@pad: 
@caps: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_activate_function ##### -->
<para>

</para>

@pad: 
@activate: 


<!-- ##### USER_FUNCTION GstPadActivateFunction ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_activatepush_function ##### -->
<para>

</para>

@pad: 
@activatepush: 


<!-- ##### FUNCTION gst_pad_set_activatepull_function ##### -->
<para>

</para>

@pad: 
@activatepull: 


<!-- ##### USER_FUNCTION GstPadActivateModeFunction ##### -->
<para>

</para>

@pad: 
@active: 
@Returns: 


<!-- ##### FUNCTION gst_pad_push ##### -->
<para>

</para>

@pad: 
@buffer: 
@Returns: 


<!-- ##### FUNCTION gst_pad_push_event ##### -->
<para>

</para>

@pad: 
@event: 
@Returns: 


<!-- ##### FUNCTION gst_pad_check_pull_range ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_pull_range ##### -->
<para>

</para>

@pad: 
@offset: 
@size: 
@buffer: 
@Returns: 


<!-- ##### FUNCTION gst_pad_activate_pull ##### -->
<para>

</para>

@pad: 
@active: 
@Returns: 


<!-- ##### FUNCTION gst_pad_activate_push ##### -->
<para>

</para>

@pad: 
@active: 
@Returns: 


<!-- ##### FUNCTION gst_pad_send_event ##### -->
<para>

</para>

@pad: 
@event: 
@Returns: 


<!-- ##### FUNCTION gst_pad_event_default ##### -->
<para>

</para>

@pad: 
@event: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query ##### -->
<para>

</para>

@pad: 
@query: 
@Returns: 


<!-- ##### FUNCTION gst_pad_peer_query ##### -->
<para>

</para>

@pad: 
@query: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query_default ##### -->
<para>

</para>

@pad: 
@query: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query_position ##### -->
<para>

</para>

@pad: 
@format: 
@cur: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query_duration ##### -->
<para>

</para>

@pad: 
@format: 
@duration: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query_convert ##### -->
<para>

</para>

@pad: 
@src_format: 
@src_val: 
@dest_format: 
@dest_val: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query_peer_position ##### -->
<para>

</para>

@pad: 
@format: 
@cur: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query_peer_duration ##### -->
<para>

</para>

@pad: 
@format: 
@duration: 
@Returns: 


<!-- ##### FUNCTION gst_pad_query_peer_convert ##### -->
<para>

</para>

@pad: 
@src_format: 
@src_val: 
@dest_format: 
@dest_val: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_query_function ##### -->
<para>

</para>

@pad: 
@query: 


<!-- ##### USER_FUNCTION GstPadQueryFunction ##### -->
<para>

</para>

@pad: 
@query: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_query_type_function ##### -->
<para>

</para>

@pad: 
@type_func: 


<!-- ##### USER_FUNCTION GstPadQueryTypeFunction ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_query_types ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_query_types_default ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_internal_link_function ##### -->
<para>

</para>

@pad: 
@intlink: 


<!-- ##### USER_FUNCTION GstPadIntLinkFunction ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_internal_links ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_get_internal_links_default ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_load_and_link ##### -->
<para>

</para>

@self: 
@parent: 


<!-- ##### FUNCTION gst_pad_dispatcher ##### -->
<para>

</para>

@pad: 
@dispatch: 
@data: 
@Returns: 


<!-- ##### USER_FUNCTION GstPadDispatcherFunction ##### -->
<para>

</para>

@pad: 
@data: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_element_private ##### -->
<para>

</para>

@pad: 
@priv: 


<!-- ##### FUNCTION gst_pad_get_element_private ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_chain ##### -->
<para>

</para>

@pad: 
@buffer: 
@Returns: 


<!-- ##### FUNCTION gst_pad_start_task ##### -->
<para>

</para>

@pad: 
@func: 
@data: 
@Returns: 


<!-- ##### FUNCTION gst_pad_pause_task ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_stop_task ##### -->
<para>

</para>

@pad: 
@Returns: 


<!-- ##### FUNCTION gst_pad_set_active ##### -->
<para>

</para>

@pad: 
@active: 
@Returns: 


<!-- ##### MACRO GST_PAD_GET_STREAM_LOCK ##### -->
<para>

</para>

@pad: 


<!-- ##### MACRO GST_PAD_STREAM_LOCK ##### -->
<para>

</para>

@pad: 


<!-- ##### MACRO GST_PAD_STREAM_LOCK_FULL ##### -->
<para>

</para>

@pad: 
@t: 


<!-- ##### MACRO GST_PAD_STREAM_TRYLOCK ##### -->
<para>

</para>

@pad: 


<!-- ##### MACRO GST_PAD_STREAM_UNLOCK ##### -->
<para>

</para>

@pad: 


<!-- ##### MACRO GST_PAD_STREAM_UNLOCK_FULL ##### -->
<para>

</para>

@pad: 


<!-- ##### MACRO GST_FLOW_IS_FATAL ##### -->
<para>

</para>

@ret: 


<!-- ##### MACRO GST_FLOW_IS_SUCCESS ##### -->
<para>

</para>

@ret: