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c1d34b8acf
Original commit message from CVS: 2005-07-01 Andy Wingo <wingo@pobox.com> * tests/network-clock.scm: Commentary update. * gst/elements/gstidentity.c (PROP_DUPLICATE): Gone daddy gone. Didn't really make sense, not implementable with basetransform, etc. (gst_identity_transform): Unref inbuf via make_writable. Feeble attempt at implementing the sync property, needs an unlock method. * gst/base/gstbasetransform.c (gst_base_transform_transform_caps): New func, by default returns the same caps (the identity transformation). (gst_base_transform_getcaps): Uses transform_caps to return something sensible. (gst_base_transform_setcaps): Complicated logic to get caps on both pads, even if they are different, and to call set_caps once for every time both pads get their caps set. (gst_base_transform_handle_buffer): Give the ref to the transform function. Allows in-place modification of the buffer. * gst/base/gstbasetransform.h (transform_caps): New class method. Given caps on one side, what can I do on the other. (set_caps): Take two caps, one for each side of the element. * gst/gstpad.h: * gst/gstpad.c (gst_pad_fixate_caps): Change prototype to modify caps in place. This is safe because we can check the mutability of the caps, and a good idea because fixate functions are just called as a matter of last resort. (Not actually implemented.) (gst_pad_set_caps): If the caps we're setting is actually the same as the existing pad caps, just update the pointer without calling setcaps. Assert that caps is either NULL or fixed, as per the docs. * gst/gstghostpad.c: Update for fixate changes.
79 lines
2.2 KiB
C
79 lines
2.2 KiB
C
/* 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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* gstidentity.h:
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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_IDENTITY_H__
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#define __GST_IDENTITY_H__
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#include <gst/gst.h>
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#include <gst/base/gstbasetransform.h>
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G_BEGIN_DECLS
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#define GST_TYPE_IDENTITY \
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(gst_identity_get_type())
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#define GST_IDENTITY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_IDENTITY,GstIdentity))
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#define GST_IDENTITY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_IDENTITY,GstIdentityClass))
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#define GST_IS_IDENTITY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_IDENTITY))
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#define GST_IS_IDENTITY_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_IDENTITY))
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typedef struct _GstIdentity GstIdentity;
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typedef struct _GstIdentityClass GstIdentityClass;
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struct _GstIdentity {
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GstBaseTransform element;
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GstClockID clock_id;
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gint error_after;
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gfloat drop_probability;
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gint datarate;
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guint sleep_time;
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gboolean silent;
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gboolean dump;
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gboolean sync;
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gboolean check_perfect;
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GstClockTime prev_timestamp;
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GstClockTime prev_duration;
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guint64 prev_offset_end;
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gchar *last_message;
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guint64 offset;
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};
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struct _GstIdentityClass {
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GstBaseTransformClass parent_class;
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/* signals */
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void (*handoff) (GstElement *element, GstBuffer *buf);
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};
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GType gst_identity_get_type(void);
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G_END_DECLS
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#endif /* __GST_IDENTITY_H__ */
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