2000-12-28 22:12:02 +00:00
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/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wtay@chello.be>
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*
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* gstbuffer.h: Header for GstBuffer object
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2000-01-30 09:03:00 +00:00
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_BUFFER_H__
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#define __GST_BUFFER_H__
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check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00
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#include <gst/gstminiobject.h>
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2003-04-13 03:07:07 +00:00
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#include <gst/gstclock.h>
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2011-05-05 08:37:19 +00:00
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#include <gst/gstcaps.h>
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2011-03-21 08:51:53 +00:00
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#include <gst/gstmemory.h>
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2000-12-28 22:12:02 +00:00
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2004-03-15 14:43:35 +00:00
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G_BEGIN_DECLS
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2000-01-30 09:03:00 +00:00
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2010-11-02 12:31:25 +00:00
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extern GType _gst_buffer_type;
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2011-05-05 08:37:19 +00:00
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typedef struct _GstBuffer GstBuffer;
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typedef struct _GstBufferPool GstBufferPool;
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2005-08-23 11:53:58 +00:00
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/**
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* GST_BUFFER_TRACE_NAME:
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*
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* The name used for tracing memory allocations.
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*/
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2009-09-01 14:49:22 +00:00
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#define GST_BUFFER_TRACE_NAME "GstBuffer"
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2003-02-02 19:40:10 +00:00
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2010-11-02 12:31:25 +00:00
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#define GST_TYPE_BUFFER (_gst_buffer_type)
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2009-12-07 19:32:12 +00:00
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#define GST_IS_BUFFER(obj) (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_BUFFER))
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2005-05-30 15:44:50 +00:00
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#define GST_BUFFER_CAST(obj) ((GstBuffer *)(obj))
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2009-11-28 23:21:24 +00:00
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#define GST_BUFFER(obj) (GST_BUFFER_CAST(obj))
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2002-07-08 19:22:02 +00:00
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2005-08-23 11:53:58 +00:00
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/**
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* GST_BUFFER_FLAGS:
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2005-10-28 17:01:14 +00:00
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* @buf: a #GstBuffer.
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2005-08-23 11:53:58 +00:00
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*
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2005-10-28 17:01:14 +00:00
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* A flags word containing #GstBufferFlag flags set on this buffer.
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2005-08-23 11:53:58 +00:00
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*/
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check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00
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#define GST_BUFFER_FLAGS(buf) GST_MINI_OBJECT_FLAGS(buf)
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2005-08-23 11:53:58 +00:00
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/**
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* GST_BUFFER_FLAG_IS_SET:
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2005-10-28 17:01:14 +00:00
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* @buf: a #GstBuffer.
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2005-08-23 11:53:58 +00:00
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* @flag: the #GstBufferFlag to check.
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*
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2005-10-28 17:01:14 +00:00
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* Gives the status of a specific flag on a buffer.
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2005-08-23 11:53:58 +00:00
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*/
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check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00
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#define GST_BUFFER_FLAG_IS_SET(buf,flag) GST_MINI_OBJECT_FLAG_IS_SET (buf, flag)
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2005-08-23 11:53:58 +00:00
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/**
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* GST_BUFFER_FLAG_SET:
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2005-10-28 17:01:14 +00:00
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* @buf: a #GstBuffer.
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2005-08-23 11:53:58 +00:00
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* @flag: the #GstBufferFlag to set.
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*
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2005-10-28 17:01:14 +00:00
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* Sets a buffer flag on a buffer.
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2005-08-23 11:53:58 +00:00
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*/
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check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00
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#define GST_BUFFER_FLAG_SET(buf,flag) GST_MINI_OBJECT_FLAG_SET (buf, flag)
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2005-08-23 11:53:58 +00:00
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/**
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* GST_BUFFER_FLAG_UNSET:
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2005-10-28 17:01:14 +00:00
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* @buf: a #GstBuffer.
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2005-08-23 11:53:58 +00:00
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* @flag: the #GstBufferFlag to clear.
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*
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* Clears a buffer flag.
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*/
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check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00
|
|
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#define GST_BUFFER_FLAG_UNSET(buf,flag) GST_MINI_OBJECT_FLAG_UNSET (buf, flag)
|
2002-07-08 19:22:02 +00:00
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|
|
|
2005-08-23 11:53:58 +00:00
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|
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/**
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|
|
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* GST_BUFFER_TIMESTAMP:
|
2005-10-28 17:01:14 +00:00
|
|
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* @buf: a #GstBuffer.:
|
|
|
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*
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|
|
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* The timestamp in nanoseconds (as a #GstClockTime) of the data in the buffer.
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2005-10-31 11:44:32 +00:00
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* Value will be %GST_CLOCK_TIME_NONE if the timestamp is unknown.
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2005-08-23 11:53:58 +00:00
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|
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*
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|
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*/
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2009-09-01 14:49:22 +00:00
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#define GST_BUFFER_TIMESTAMP(buf) (GST_BUFFER_CAST(buf)->timestamp)
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2005-08-23 11:53:58 +00:00
|
|
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/**
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|
|
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* GST_BUFFER_DURATION:
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2005-10-28 17:01:14 +00:00
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|
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* @buf: a #GstBuffer.
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2005-08-23 11:53:58 +00:00
|
|
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*
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2005-10-28 17:01:14 +00:00
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|
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* The duration in nanoseconds (as a #GstClockTime) of the data in the buffer.
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2005-08-23 11:53:58 +00:00
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|
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* Value will be %GST_CLOCK_TIME_NONE if the duration is unknown.
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|
|
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*/
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2009-09-01 14:49:22 +00:00
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|
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#define GST_BUFFER_DURATION(buf) (GST_BUFFER_CAST(buf)->duration)
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2005-08-23 11:53:58 +00:00
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|
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/**
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* GST_BUFFER_OFFSET:
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2005-10-28 17:01:14 +00:00
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|
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* @buf: a #GstBuffer.
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2005-08-23 11:53:58 +00:00
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|
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*
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2005-10-28 17:01:14 +00:00
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|
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* The offset in the source file of the beginning of this buffer.
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2005-08-23 11:53:58 +00:00
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*/
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2009-09-01 14:49:22 +00:00
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|
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#define GST_BUFFER_OFFSET(buf) (GST_BUFFER_CAST(buf)->offset)
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2005-08-23 11:53:58 +00:00
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|
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/**
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|
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* GST_BUFFER_OFFSET_END:
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2005-10-28 17:01:14 +00:00
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|
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* @buf: a #GstBuffer.
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2005-08-23 11:53:58 +00:00
|
|
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*
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2005-10-28 17:01:14 +00:00
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|
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* The offset in the source file of the end of this buffer.
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2005-08-23 11:53:58 +00:00
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*/
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2009-09-01 14:49:22 +00:00
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|
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#define GST_BUFFER_OFFSET_END(buf) (GST_BUFFER_CAST(buf)->offset_end)
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2002-07-08 19:22:02 +00:00
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|
|
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2005-08-23 11:53:58 +00:00
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|
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/**
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* GST_BUFFER_OFFSET_NONE:
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2005-08-26 11:19:22 +00:00
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*
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2005-08-23 11:53:58 +00:00
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* Constant for no-offset return results.
|
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*/
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2009-09-01 14:49:22 +00:00
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#define GST_BUFFER_OFFSET_NONE ((guint64)-1)
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2003-05-24 10:09:39 +00:00
|
|
|
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2005-08-23 11:53:58 +00:00
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|
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/**
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* GST_BUFFER_DURATION_IS_VALID:
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2005-10-28 17:01:14 +00:00
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|
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* @buffer: a #GstBuffer
|
2005-08-23 11:53:58 +00:00
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|
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*
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2005-09-11 12:57:36 +00:00
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|
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* Tests if the duration is known.
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2005-08-23 11:53:58 +00:00
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*/
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2009-09-01 14:49:22 +00:00
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#define GST_BUFFER_DURATION_IS_VALID(buffer) (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_DURATION (buffer)))
|
2005-08-23 11:53:58 +00:00
|
|
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/**
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* GST_BUFFER_TIMESTAMP_IS_VALID:
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2005-10-28 17:01:14 +00:00
|
|
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* @buffer: a #GstBuffer
|
2005-08-26 11:19:22 +00:00
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|
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*
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2005-08-23 11:53:58 +00:00
|
|
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* Tests if the timestamp is known.
|
|
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*/
|
2009-09-01 14:49:22 +00:00
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#define GST_BUFFER_TIMESTAMP_IS_VALID(buffer) (GST_CLOCK_TIME_IS_VALID (GST_BUFFER_TIMESTAMP (buffer)))
|
2005-08-23 11:53:58 +00:00
|
|
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/**
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|
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* GST_BUFFER_OFFSET_IS_VALID:
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2005-10-28 17:01:14 +00:00
|
|
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* @buffer: a #GstBuffer
|
2005-08-26 11:19:22 +00:00
|
|
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*
|
2005-08-23 11:53:58 +00:00
|
|
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* Tests if the start offset is known.
|
|
|
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*/
|
2009-09-01 14:49:22 +00:00
|
|
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#define GST_BUFFER_OFFSET_IS_VALID(buffer) (GST_BUFFER_OFFSET (buffer) != GST_BUFFER_OFFSET_NONE)
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
|
|
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* GST_BUFFER_OFFSET_END_IS_VALID:
|
2005-10-28 17:01:14 +00:00
|
|
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* @buffer: a #GstBuffer
|
2005-08-25 10:35:46 +00:00
|
|
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*
|
2005-08-23 11:53:58 +00:00
|
|
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* Tests if the end offset is known.
|
|
|
|
*/
|
2009-09-01 14:49:22 +00:00
|
|
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#define GST_BUFFER_OFFSET_END_IS_VALID(buffer) (GST_BUFFER_OFFSET_END (buffer) != GST_BUFFER_OFFSET_NONE)
|
2006-06-12 09:11:44 +00:00
|
|
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/**
|
|
|
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* GST_BUFFER_IS_DISCONT:
|
|
|
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* @buffer: a #GstBuffer
|
|
|
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*
|
|
|
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* Tests if the buffer marks a discontinuity in the stream.
|
|
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*
|
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* Since: 0.10.9
|
|
|
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*/
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2009-09-01 14:49:22 +00:00
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|
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#define GST_BUFFER_IS_DISCONT(buffer) (GST_BUFFER_FLAG_IS_SET (buffer, GST_BUFFER_FLAG_DISCONT))
|
2003-04-13 03:07:07 +00:00
|
|
|
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2004-08-12 10:56:40 +00:00
|
|
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/**
|
|
|
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* GstBufferFlag:
|
2005-06-08 13:40:46 +00:00
|
|
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* @GST_BUFFER_FLAG_PREROLL: the buffer is part of a preroll and should not be
|
Docs updates, clean up some headers.
Original commit message from CVS:
* docs/design/part-MT-refcounting.txt:
* docs/design/part-conventions.txt:
* docs/design/part-gstobject.txt:
* docs/design/part-relations.txt:
* docs/design/part-standards.txt:
* gst/gstbin.c: (gst_bin_add_func), (gst_bin_add),
(gst_bin_remove_func), (gst_bin_remove), (gst_bin_iterate_recurse),
(gst_bin_get_by_name), (gst_bin_get_by_interface),
(gst_bin_iterate_all_by_interface):
* gst/gstbuffer.h:
* gst/gstclock.h:
* gst/gstelement.c: (gst_element_class_init),
(gst_element_change_state), (gst_element_set_loop_function):
* gst/gstelement.h:
* gst/gstiterator.c:
* gst/gstobject.c: (gst_object_class_init), (gst_object_ref),
(gst_object_unref), (gst_object_sink), (gst_object_dispose),
(gst_object_dispatch_properties_changed), (gst_object_set_name),
(gst_object_set_parent), (gst_object_unparent),
(gst_object_check_uniqueness):
* gst/gstobject.h:
Docs updates, clean up some headers.
Free iterators in GstBin.
GstObject is now looking good.
2005-03-08 14:38:06 +00:00
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|
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* displayed.
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2006-06-06 14:16:33 +00:00
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* @GST_BUFFER_FLAG_DISCONT: the buffer marks a discontinuity in the stream.
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|
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* This typically occurs after a seek or a dropped buffer from a live or
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* network source.
|
check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00
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|
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* @GST_BUFFER_FLAG_IN_CAPS: the buffer has been added as a field in a #GstCaps.
|
2006-06-06 14:16:33 +00:00
|
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* @GST_BUFFER_FLAG_GAP: the buffer has been created to fill a gap in the
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2007-10-15 07:37:37 +00:00
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* stream and contains media neutral data (elements can switch to optimized code
|
|
|
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* path that ignores the buffer content).
|
check/Makefile.am: remove GstData checks
Original commit message from CVS:
* check/Makefile.am: remove GstData checks
* check/gst-libs/gdp.c: (START_TEST): fix for API changes
* gst/Makefile.am: add miniobject, remove data
* gst/gst.h: add miniobject, remove data
* gst/gstdata.c: remove
* gst/gstdata.h: remove
* gst/gstdata_private.h: remove
* gst/gsttypes.h: remove GstEvent and GstMessage
* gst/gstelement.c: (gst_element_post_message): fix for API changes
* gst/gstmarshal.list: change BOXED -> OBJECT
Implement GstMiniObject.
* gst/gstminiobject.c:
* gst/gstminiobject.h:
Modify to be subclasses of GstMiniObject.
* gst/gstbuffer.c: (_gst_buffer_initialize), (gst_buffer_get_type),
(gst_buffer_class_init), (gst_buffer_finalize), (_gst_buffer_copy),
(gst_buffer_init), (gst_buffer_new), (gst_buffer_new_and_alloc),
(gst_subbuffer_get_type), (gst_subbuffer_init),
(gst_buffer_create_sub), (gst_buffer_is_span_fast),
(gst_buffer_span):
* gst/gstbuffer.h:
* gst/gstevent.c: (_gst_event_initialize), (gst_event_get_type),
(gst_event_class_init), (gst_event_init), (gst_event_finalize),
(_gst_event_copy), (gst_event_new):
* gst/gstevent.h:
* gst/gstmessage.c: (_gst_message_initialize),
(gst_message_get_type), (gst_message_class_init),
(gst_message_init), (gst_message_finalize), (_gst_message_copy),
(gst_message_new), (gst_message_new_error),
(gst_message_new_warning), (gst_message_new_tag),
(gst_message_new_state_changed), (gst_message_new_application):
* gst/gstmessage.h:
* gst/gstprobe.c: (gst_probe_perform),
(gst_probe_dispatcher_dispatch):
* gst/gstprobe.h:
* gst/gstquery.c: (_gst_query_initialize), (gst_query_get_type),
(gst_query_class_init), (gst_query_finalize), (gst_query_init),
(_gst_query_copy), (gst_query_new):
Update elements for GstData -> GstMiniObject changes
* gst/gstquery.h:
* gst/gstqueue.c: (gst_queue_finalize), (gst_queue_locked_flush),
(gst_queue_chain), (gst_queue_loop):
* gst/elements/gstbufferstore.c:
(gst_buffer_store_add_buffer_func),
(gst_buffer_store_cleared_func), (gst_buffer_store_get_buffer):
* gst/elements/gstfakesink.c: (gst_fakesink_class_init),
(gst_fakesink_render):
* gst/elements/gstfakesrc.c: (gst_fakesrc_class_init):
* gst/elements/gstfilesrc.c: (gst_mmap_buffer_get_type),
(gst_mmap_buffer_class_init), (gst_mmap_buffer_init),
(gst_mmap_buffer_finalize), (gst_filesrc_map_region),
(gst_filesrc_create_read):
* gst/elements/gstidentity.c: (gst_identity_class_init):
* gst/elements/gsttypefindelement.c:
(gst_type_find_element_src_event), (free_entry_buffers),
(gst_type_find_element_handle_event):
* libs/gst/dataprotocol/dataprotocol.c:
(gst_dp_header_from_buffer):
* libs/gst/dataprotocol/dataprotocol.h:
* libs/gst/dataprotocol/dp-private.h:
2005-05-16 20:21:55 +00:00
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* @GST_BUFFER_FLAG_DELTA_UNIT: this unit cannot be decoded independently.
|
2010-01-14 09:44:16 +00:00
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* @GST_BUFFER_FLAG_MEDIA1: a flag whose use is specific to the caps of the buffer. Since: 0.10.23.
|
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* @GST_BUFFER_FLAG_MEDIA2: a flag whose use is specific to the caps of the buffer. Since: 0.10.23.
|
|
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* @GST_BUFFER_FLAG_MEDIA3: a flag whose use is specific to the caps of the buffer. Since: 0.10.23.
|
2011-01-03 10:37:05 +00:00
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* @GST_BUFFER_FLAG_MEDIA4: a flag whose use is specific to the caps of the buffer. Since: 0.10.33.
|
2004-08-12 10:56:40 +00:00
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* @GST_BUFFER_FLAG_LAST: additional flags can be added starting from this flag.
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*
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* A set of buffer flags used to describe properties of a #GstBuffer.
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*/
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2004-03-15 14:43:35 +00:00
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typedef enum {
|
2005-11-19 18:32:01 +00:00
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GST_BUFFER_FLAG_PREROLL = (GST_MINI_OBJECT_FLAG_LAST << 0),
|
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GST_BUFFER_FLAG_DISCONT = (GST_MINI_OBJECT_FLAG_LAST << 1),
|
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GST_BUFFER_FLAG_IN_CAPS = (GST_MINI_OBJECT_FLAG_LAST << 2),
|
|
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GST_BUFFER_FLAG_GAP = (GST_MINI_OBJECT_FLAG_LAST << 3),
|
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GST_BUFFER_FLAG_DELTA_UNIT = (GST_MINI_OBJECT_FLAG_LAST << 4),
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2009-02-19 15:04:43 +00:00
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GST_BUFFER_FLAG_MEDIA1 = (GST_MINI_OBJECT_FLAG_LAST << 5),
|
|
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GST_BUFFER_FLAG_MEDIA2 = (GST_MINI_OBJECT_FLAG_LAST << 6),
|
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GST_BUFFER_FLAG_MEDIA3 = (GST_MINI_OBJECT_FLAG_LAST << 7),
|
2011-02-23 09:31:44 +00:00
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GST_BUFFER_FLAG_MEDIA4 = (GST_MINI_OBJECT_FLAG_LAST << 8),
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2009-11-28 23:21:24 +00:00
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GST_BUFFER_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 16)
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2004-03-15 14:43:35 +00:00
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} GstBufferFlag;
|
2000-01-30 09:03:00 +00:00
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|
|
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2005-11-09 18:10:53 +00:00
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/**
|
|
|
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* GstBuffer:
|
|
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* @mini_object: the parent structure
|
2011-03-30 14:47:55 +00:00
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|
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* @pool: pointer to the pool owner of the buffer
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2005-11-10 09:19:12 +00:00
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* @timestamp: timestamp of the buffer, can be #GST_CLOCK_TIME_NONE when the
|
2005-11-09 18:10:53 +00:00
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* timestamp is not known or relevant.
|
2005-11-10 09:19:12 +00:00
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* @duration: duration in time of the buffer data, can be #GST_CLOCK_TIME_NONE
|
2005-11-09 18:10:53 +00:00
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* when the duration is not known or relevant.
|
2009-09-01 14:49:22 +00:00
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* @offset: a media specific offset for the buffer data.
|
2005-11-09 18:10:53 +00:00
|
|
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* For video frames, this is the frame number of this buffer.
|
|
|
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* For audio samples, this is the offset of the first sample in this buffer.
|
|
|
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* For file data or compressed data this is the byte offset of the first
|
|
|
|
* byte in this buffer.
|
2009-09-01 14:49:22 +00:00
|
|
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* @offset_end: the last offset contained in this buffer. It has the same
|
2005-11-09 18:10:53 +00:00
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* format as @offset.
|
|
|
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*
|
|
|
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* The structure of a #GstBuffer. Use the associated macros to access the public
|
|
|
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* variables.
|
|
|
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*/
|
2004-03-15 14:43:35 +00:00
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struct _GstBuffer {
|
2009-09-01 14:49:22 +00:00
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GstMiniObject mini_object;
|
2001-04-24 19:20:15 +00:00
|
|
|
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2005-03-07 18:27:42 +00:00
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/*< public >*/ /* with COW */
|
2011-03-29 09:31:30 +00:00
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GstBufferPool *pool;
|
2001-04-24 19:20:15 +00:00
|
|
|
|
2002-12-19 21:31:03 +00:00
|
|
|
/* timestamp */
|
2009-09-01 14:49:22 +00:00
|
|
|
GstClockTime timestamp;
|
|
|
|
GstClockTime duration;
|
2003-05-24 10:09:39 +00:00
|
|
|
|
2005-11-09 18:10:53 +00:00
|
|
|
/* media specific offset */
|
2009-09-01 14:49:22 +00:00
|
|
|
guint64 offset;
|
|
|
|
guint64 offset_end;
|
2002-07-08 19:22:02 +00:00
|
|
|
};
|
2001-10-17 10:21:27 +00:00
|
|
|
|
2002-07-13 23:12:22 +00:00
|
|
|
/* allocation */
|
2011-03-29 09:07:36 +00:00
|
|
|
GstBuffer * gst_buffer_new (void);
|
2011-06-22 09:42:46 +00:00
|
|
|
GstBuffer * gst_buffer_new_allocate (const GstAllocator * allocator, gsize maxsize, gsize align);
|
2011-07-11 12:40:07 +00:00
|
|
|
GstBuffer * gst_buffer_new_wrapped_full (gpointer data, GFreeFunc free_func, gsize offset, gsize size);
|
|
|
|
GstBuffer * gst_buffer_new_wrapped (gpointer data, gsize size);
|
2002-07-13 23:12:22 +00:00
|
|
|
|
2011-03-21 08:51:53 +00:00
|
|
|
/* memory blocks */
|
2011-03-29 09:07:36 +00:00
|
|
|
guint gst_buffer_n_memory (GstBuffer *buffer);
|
2011-07-06 14:13:30 +00:00
|
|
|
void gst_buffer_take_memory (GstBuffer *buffer, gint idx, GstMemory *mem);
|
2011-03-29 17:17:55 +00:00
|
|
|
GstMemory * gst_buffer_peek_memory (GstBuffer *buffer, guint idx, GstMapFlags flags);
|
2011-03-29 09:07:36 +00:00
|
|
|
void gst_buffer_remove_memory_range (GstBuffer *buffer, guint idx, guint length);
|
2011-03-21 08:51:53 +00:00
|
|
|
|
2011-03-29 09:07:36 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_remove_memory:
|
|
|
|
* @b: a #GstBuffer.
|
|
|
|
* @i: an index
|
|
|
|
*
|
|
|
|
* Remove the memory block in @b at @i.
|
|
|
|
*/
|
|
|
|
#define gst_buffer_remove_memory(b,i) gst_buffer_remove_memory_range ((b), (i), 1)
|
2011-03-21 17:13:55 +00:00
|
|
|
|
2011-03-29 09:07:36 +00:00
|
|
|
void gst_buffer_fill (GstBuffer *buffer, gsize offset,
|
|
|
|
gconstpointer src, gsize size);
|
|
|
|
void gst_buffer_extract (GstBuffer *buffer, gsize offset,
|
|
|
|
gpointer dest, gsize size);
|
2011-04-19 16:57:43 +00:00
|
|
|
gint gst_buffer_memcmp (GstBuffer *buffer, gsize offset,
|
|
|
|
gconstpointer mem, gsize size);
|
2011-07-06 14:08:56 +00:00
|
|
|
void gst_buffer_memset (GstBuffer *buffer, gsize offset,
|
|
|
|
guint8 val, gsize size);
|
2011-03-21 08:51:53 +00:00
|
|
|
|
2011-07-11 14:17:57 +00:00
|
|
|
gsize gst_buffer_get_sizes (GstBuffer *buffer, gsize *offset, gsize *maxsize);
|
|
|
|
void gst_buffer_resize (GstBuffer *buffer, gssize offset, gsize size);
|
2011-03-21 08:51:53 +00:00
|
|
|
|
2011-07-11 14:17:57 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_get_size:
|
|
|
|
* @b: a #GstBuffer.
|
|
|
|
*
|
|
|
|
* Get the size of @b.
|
|
|
|
*/
|
|
|
|
#define gst_buffer_get_size(b) gst_buffer_get_sizes ((b), NULL, NULL)
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
2011-06-05 17:11:22 +00:00
|
|
|
* gst_buffer_set_size:
|
2011-03-29 09:07:36 +00:00
|
|
|
* @b: a #GstBuffer.
|
|
|
|
* @s: a new size
|
2005-10-28 17:01:14 +00:00
|
|
|
*
|
2011-03-29 09:07:36 +00:00
|
|
|
* Set the size of @b to @s. This will remove or trim the memory blocks
|
|
|
|
* in the buffer.
|
2005-08-23 11:53:58 +00:00
|
|
|
*/
|
2011-03-30 14:47:55 +00:00
|
|
|
#define gst_buffer_set_size(b,s) gst_buffer_resize ((b), 0, (s))
|
2011-03-29 09:07:36 +00:00
|
|
|
|
|
|
|
/* getting memory */
|
|
|
|
gpointer gst_buffer_map (GstBuffer *buffer, gsize *size, gsize *maxsize,
|
|
|
|
GstMapFlags flags);
|
|
|
|
gboolean gst_buffer_unmap (GstBuffer *buffer, gpointer data, gsize size);
|
2002-11-02 13:15:55 +00:00
|
|
|
|
2000-01-30 09:03:00 +00:00
|
|
|
/* refcounting */
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_ref:
|
2005-10-28 17:01:14 +00:00
|
|
|
* @buf: a #GstBuffer.
|
2005-08-23 11:53:58 +00:00
|
|
|
*
|
|
|
|
* Increases the refcount of the given buffer by one.
|
2006-05-05 14:27:31 +00:00
|
|
|
*
|
|
|
|
* Note that the refcount affects the writeability
|
2006-05-10 16:44:15 +00:00
|
|
|
* of @buf and its metadata, see gst_buffer_is_writable() and
|
|
|
|
* gst_buffer_is_metadata_writable(). It is
|
2006-05-05 14:27:31 +00:00
|
|
|
* important to note that keeping additional references to
|
|
|
|
* GstBuffer instances can potentially increase the number
|
|
|
|
* of memcpy operations in a pipeline.
|
|
|
|
*
|
2010-12-07 18:35:04 +00:00
|
|
|
* Returns: (transfer full): @buf
|
2005-08-23 11:53:58 +00:00
|
|
|
*/
|
2006-05-10 16:44:15 +00:00
|
|
|
#ifdef _FOOL_GTK_DOC_
|
|
|
|
G_INLINE_FUNC GstBuffer * gst_buffer_ref (GstBuffer * buf);
|
|
|
|
#endif
|
|
|
|
|
2006-03-21 13:50:52 +00:00
|
|
|
static inline GstBuffer *
|
|
|
|
gst_buffer_ref (GstBuffer * buf)
|
|
|
|
{
|
2006-06-12 09:11:44 +00:00
|
|
|
return (GstBuffer *) gst_mini_object_ref (GST_MINI_OBJECT_CAST (buf));
|
2006-03-21 13:50:52 +00:00
|
|
|
}
|
|
|
|
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_unref:
|
2010-12-07 18:35:04 +00:00
|
|
|
* @buf: (transfer full): a #GstBuffer.
|
2005-08-23 11:53:58 +00:00
|
|
|
*
|
|
|
|
* Decreases the refcount of the buffer. If the refcount reaches 0, the buffer
|
2005-10-28 17:01:14 +00:00
|
|
|
* will be freed. If GST_BUFFER_MALLOCDATA() is non-NULL, this pointer will
|
|
|
|
* also be freed at this time.
|
2005-08-23 11:53:58 +00:00
|
|
|
*/
|
2009-02-22 17:51:08 +00:00
|
|
|
#ifdef _FOOL_GTK_DOC_
|
|
|
|
G_INLINE_FUNC void gst_buffer_unref (GstBuffer * buf);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static inline void
|
|
|
|
gst_buffer_unref (GstBuffer * buf)
|
|
|
|
{
|
|
|
|
gst_mini_object_unref (GST_MINI_OBJECT_CAST (buf));
|
|
|
|
}
|
2005-08-23 11:53:58 +00:00
|
|
|
|
2002-07-08 19:22:02 +00:00
|
|
|
/* copy buffer */
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_copy:
|
2005-10-28 17:01:14 +00:00
|
|
|
* @buf: a #GstBuffer.
|
2005-08-23 11:53:58 +00:00
|
|
|
*
|
2005-10-28 17:20:45 +00:00
|
|
|
* Create a copy of the given buffer. This will also make a newly allocated
|
|
|
|
* copy of the data the source buffer contains.
|
2009-03-12 09:48:21 +00:00
|
|
|
*
|
2010-12-07 18:35:04 +00:00
|
|
|
* Returns: (transfer full): a new copy of @buf.
|
2005-08-23 11:53:58 +00:00
|
|
|
*/
|
2009-02-22 17:51:08 +00:00
|
|
|
#ifdef _FOOL_GTK_DOC_
|
|
|
|
G_INLINE_FUNC GstBuffer * gst_buffer_copy (const GstBuffer * buf);
|
|
|
|
#endif
|
|
|
|
|
|
|
|
static inline GstBuffer *
|
|
|
|
gst_buffer_copy (const GstBuffer * buf)
|
|
|
|
{
|
2010-09-01 23:01:25 +00:00
|
|
|
return GST_BUFFER (gst_mini_object_copy (GST_MINI_OBJECT_CONST_CAST (buf)));
|
2009-02-22 17:51:08 +00:00
|
|
|
}
|
|
|
|
|
2007-03-09 16:30:38 +00:00
|
|
|
|
|
|
|
/**
|
|
|
|
* GstBufferCopyFlags:
|
2011-03-30 14:47:55 +00:00
|
|
|
* @GST_BUFFER_COPY_NONE: copy nothing
|
2007-03-09 16:30:38 +00:00
|
|
|
* @GST_BUFFER_COPY_FLAGS: flag indicating that buffer flags should be copied
|
|
|
|
* @GST_BUFFER_COPY_TIMESTAMPS: flag indicating that buffer timestamp, duration,
|
|
|
|
* offset and offset_end should be copied
|
2011-03-29 09:07:36 +00:00
|
|
|
* @GST_BUFFER_COPY_MEMORY: flag indicating that buffer memory should be copied
|
|
|
|
* and appended to already existing memory
|
|
|
|
* @GST_BUFFER_COPY_MERGE: flag indicating that buffer memory should be
|
|
|
|
* merged
|
2007-03-09 16:30:38 +00:00
|
|
|
*
|
2011-03-29 09:07:36 +00:00
|
|
|
* A set of flags that can be provided to the gst_buffer_copy_into()
|
|
|
|
* function to specify which items should be copied.
|
2007-03-09 16:30:38 +00:00
|
|
|
*/
|
|
|
|
typedef enum {
|
2011-03-30 14:47:55 +00:00
|
|
|
GST_BUFFER_COPY_NONE = 0,
|
2011-03-21 12:07:42 +00:00
|
|
|
GST_BUFFER_COPY_FLAGS = (1 << 0),
|
|
|
|
GST_BUFFER_COPY_TIMESTAMPS = (1 << 1),
|
2011-05-09 14:21:28 +00:00
|
|
|
GST_BUFFER_COPY_MEMORY = (1 << 2),
|
|
|
|
GST_BUFFER_COPY_MERGE = (1 << 3)
|
2007-03-09 16:30:38 +00:00
|
|
|
} GstBufferCopyFlags;
|
|
|
|
|
2011-03-29 09:07:36 +00:00
|
|
|
/**
|
|
|
|
* GST_BUFFER_COPY_METADATA:
|
|
|
|
*
|
|
|
|
* Combination of all possible metadata fields that can be copied with
|
|
|
|
* gst_buffer_copy_into().
|
|
|
|
*/
|
2011-05-09 14:21:28 +00:00
|
|
|
#define GST_BUFFER_COPY_METADATA (GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS)
|
2011-03-21 12:07:42 +00:00
|
|
|
|
2007-03-09 16:30:38 +00:00
|
|
|
/**
|
|
|
|
* GST_BUFFER_COPY_ALL:
|
|
|
|
*
|
|
|
|
* Combination of all possible fields that can be copied with
|
2011-03-21 12:07:42 +00:00
|
|
|
* gst_buffer_copy_into().
|
2007-03-09 16:30:38 +00:00
|
|
|
*/
|
2011-03-21 12:07:42 +00:00
|
|
|
#define GST_BUFFER_COPY_ALL (GST_BUFFER_COPY_METADATA | GST_BUFFER_COPY_MEMORY)
|
|
|
|
|
2011-03-21 08:51:53 +00:00
|
|
|
/* copies memory or metadata into newly allocated buffer */
|
2011-03-21 12:07:42 +00:00
|
|
|
void gst_buffer_copy_into (GstBuffer *dest, GstBuffer *src,
|
|
|
|
GstBufferCopyFlags flags,
|
2011-03-24 20:18:52 +00:00
|
|
|
gsize offset, gsize size);
|
2007-03-09 16:30:38 +00:00
|
|
|
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_is_writable:
|
2005-10-28 17:01:14 +00:00
|
|
|
* @buf: a #GstBuffer
|
2005-08-23 11:53:58 +00:00
|
|
|
*
|
2006-01-17 12:14:20 +00:00
|
|
|
* Tests if you can safely write data into a buffer's data array or validly
|
|
|
|
* modify the caps and timestamp metadata. Metadata in a GstBuffer is always
|
|
|
|
* writable, but it is only safe to change it when there is only one owner
|
2009-09-01 14:49:22 +00:00
|
|
|
* of the buffer - ie, the refcount is 1.
|
2005-08-23 11:53:58 +00:00
|
|
|
*/
|
2009-09-01 14:49:22 +00:00
|
|
|
#define gst_buffer_is_writable(buf) gst_mini_object_is_writable (GST_MINI_OBJECT_CAST (buf))
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_make_writable:
|
2010-12-07 18:35:04 +00:00
|
|
|
* @buf: (transfer full): a #GstBuffer
|
2005-08-23 11:53:58 +00:00
|
|
|
*
|
2005-10-28 17:01:14 +00:00
|
|
|
* Makes a writable buffer from the given buffer. If the source buffer is
|
2009-09-01 14:49:22 +00:00
|
|
|
* already writable, this will simply return the same buffer. A copy will
|
2005-10-28 17:01:14 +00:00
|
|
|
* otherwise be made using gst_buffer_copy().
|
2010-12-07 18:35:04 +00:00
|
|
|
*
|
|
|
|
* Returns: (transfer full): a writable buffer which may or may not be the
|
|
|
|
* same as @buf
|
2005-08-23 11:53:58 +00:00
|
|
|
*/
|
2009-09-01 14:49:22 +00:00
|
|
|
#define gst_buffer_make_writable(buf) GST_BUFFER_CAST (gst_mini_object_make_writable (GST_MINI_OBJECT_CAST (buf)))
|
2000-01-30 09:03:00 +00:00
|
|
|
|
2005-08-23 11:53:58 +00:00
|
|
|
/**
|
|
|
|
* gst_buffer_replace:
|
2010-12-07 18:35:04 +00:00
|
|
|
* @obuf: (inout) (transfer full): pointer to a pointer to a #GstBuffer to be
|
|
|
|
* replaced.
|
|
|
|
* @nbuf: (transfer none) (allow-none): pointer to a #GstBuffer that will
|
|
|
|
* replace the buffer pointed to by @obuf.
|
2005-10-28 17:01:14 +00:00
|
|
|
*
|
2009-11-25 14:44:05 +00:00
|
|
|
* Modifies a pointer to a #GstBuffer to point to a different #GstBuffer. The
|
2005-10-28 17:01:14 +00:00
|
|
|
* modification is done atomically (so this is useful for ensuring thread safety
|
2009-09-01 14:49:22 +00:00
|
|
|
* in some cases), and the reference counts are updated appropriately (the old
|
2005-10-28 17:01:14 +00:00
|
|
|
* buffer is unreffed, the new is reffed).
|
2005-08-23 11:53:58 +00:00
|
|
|
*
|
2005-10-28 17:01:14 +00:00
|
|
|
* Either @nbuf or the #GstBuffer pointed to by @obuf may be NULL.
|
2005-08-23 11:53:58 +00:00
|
|
|
*/
|
2009-09-01 14:49:22 +00:00
|
|
|
#define gst_buffer_replace(obuf,nbuf) \
|
|
|
|
G_STMT_START { \
|
2006-10-18 10:08:45 +00:00
|
|
|
GstBuffer **___obufaddr = (GstBuffer **)(obuf); \
|
2006-10-17 10:30:27 +00:00
|
|
|
gst_mini_object_replace ((GstMiniObject **)___obufaddr, \
|
|
|
|
GST_MINI_OBJECT_CAST (nbuf)); \
|
|
|
|
} G_STMT_END
|
gst/: Fix name lookup in GstBin.
Original commit message from CVS:
* gst/gstbin.c: (gst_bin_send_event), (compare_name),
(gst_bin_get_by_name):
* gst/gstbuffer.h:
* gst/gstclock.c: (gst_clock_entry_new), (gst_clock_class_init),
(gst_clock_finalize):
* gst/gstdata.c: (gst_data_replace):
* gst/gstdata.h:
* gst/gstelement.c: (gst_element_request_pad),
(gst_element_pads_activate):
* gst/gstobject.c: (gst_object_init), (gst_object_ref),
(gst_object_unref):
* gst/gstpad.c: (gst_pad_set_active), (gst_pad_peer_set_active),
(gst_pad_set_checkgetrange_function),
(gst_pad_link_check_compatible_unlocked), (gst_pad_set_caps),
(gst_pad_check_pull_range), (gst_pad_pull_range),
(gst_static_pad_template_get_caps), (gst_pad_start_task),
(gst_pad_pause_task), (gst_pad_stop_task):
* gst/gstutils.c: (gst_element_get_compatible_pad_template),
(gst_element_request_pad), (gst_pad_proxy_getcaps):
Fix name lookup in GstBin.
Added _data_replace() function and _buffer_replace()
Use finalize method to clean up clock.
Fix refcounting on request pads.
Fix pad schedule mode error.
Some more object refcounting debug info,
2005-05-05 09:28:01 +00:00
|
|
|
|
2011-03-30 14:47:55 +00:00
|
|
|
/* creating a region */
|
|
|
|
GstBuffer* gst_buffer_copy_region (GstBuffer *parent, GstBufferCopyFlags flags,
|
|
|
|
gsize offset, gsize size);
|
2001-04-22 01:30:19 +00:00
|
|
|
|
2005-03-07 18:27:42 +00:00
|
|
|
/* span, two buffers, intelligently */
|
2009-09-01 14:49:22 +00:00
|
|
|
gboolean gst_buffer_is_span_fast (GstBuffer *buf1, GstBuffer *buf2);
|
2011-03-30 17:01:13 +00:00
|
|
|
GstBuffer* gst_buffer_span (GstBuffer *buf1, gsize offset, GstBuffer *buf2, gsize size);
|
2001-08-11 08:25:05 +00:00
|
|
|
|
2009-12-17 11:34:42 +00:00
|
|
|
/* metadata */
|
2011-02-25 12:15:25 +00:00
|
|
|
#include <gst/gstmeta.h>
|
2009-12-17 11:34:42 +00:00
|
|
|
|
2011-02-27 18:40:45 +00:00
|
|
|
GstMeta * gst_buffer_get_meta (GstBuffer *buffer, const GstMetaInfo *info);
|
|
|
|
GstMeta * gst_buffer_add_meta (GstBuffer *buffer, const GstMetaInfo *info,
|
|
|
|
gpointer params);
|
2011-02-25 12:15:25 +00:00
|
|
|
gboolean gst_buffer_remove_meta (GstBuffer *buffer, GstMeta *meta);
|
|
|
|
|
|
|
|
GstMeta * gst_buffer_iterate_meta (GstBuffer *buffer, gpointer *state);
|
2009-12-17 11:34:42 +00:00
|
|
|
|
2005-10-20 20:46:17 +00:00
|
|
|
/**
|
|
|
|
* gst_value_set_buffer:
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2009-11-25 14:44:05 +00:00
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* @v: a #GValue to receive the data
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2010-12-07 18:35:04 +00:00
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* @b: (transfer none): a #GstBuffer to assign to the GstValue
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2005-10-20 20:46:17 +00:00
|
|
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*
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2006-08-23 09:47:32 +00:00
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* Sets @b as the value of @v. Caller retains reference to buffer.
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2005-10-20 20:46:17 +00:00
|
|
|
*/
|
2009-11-28 23:21:24 +00:00
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|
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#define gst_value_set_buffer(v,b) g_value_set_boxed((v),(b))
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2005-10-20 20:46:17 +00:00
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|
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/**
|
|
|
|
* gst_value_take_buffer:
|
2009-11-25 14:44:05 +00:00
|
|
|
* @v: a #GValue to receive the data
|
2010-12-07 18:35:04 +00:00
|
|
|
* @b: (transfer full): a #GstBuffer to assign to the GstValue
|
2005-10-20 20:46:17 +00:00
|
|
|
*
|
2006-08-23 09:47:32 +00:00
|
|
|
* Sets @b as the value of @v. Caller gives away reference to buffer.
|
2005-10-20 20:46:17 +00:00
|
|
|
*/
|
2009-11-28 23:21:24 +00:00
|
|
|
#define gst_value_take_buffer(v,b) g_value_take_boxed(v,(b))
|
2005-10-20 20:46:17 +00:00
|
|
|
/**
|
|
|
|
* gst_value_get_buffer:
|
2009-11-25 14:44:05 +00:00
|
|
|
* @v: a #GValue to query
|
2005-10-20 20:46:17 +00:00
|
|
|
*
|
2006-08-23 09:47:32 +00:00
|
|
|
* Receives a #GstBuffer as the value of @v. Does not return a reference to
|
|
|
|
* the buffer, so the pointer is only valid for as long as the caller owns
|
|
|
|
* a reference to @v.
|
2010-12-07 18:35:04 +00:00
|
|
|
*
|
|
|
|
* Returns: (transfer none): buffer
|
2005-10-20 20:46:17 +00:00
|
|
|
*/
|
2009-11-28 23:21:24 +00:00
|
|
|
#define gst_value_get_buffer(v) GST_BUFFER_CAST (g_value_get_boxed(v))
|
2005-06-22 09:55:16 +00:00
|
|
|
|
2002-07-08 19:22:02 +00:00
|
|
|
G_END_DECLS
|
2004-03-15 14:43:35 +00:00
|
|
|
|
2000-01-30 09:03:00 +00:00
|
|
|
#endif /* __GST_BUFFER_H__ */
|