59e7f0597d
Everytime a buffer is being provided from baseparse, we are parsing all the data from the beginning. But since we would have already parsed some of the data in the previous iterations, it doesnt make much sense to keep parsing the same everytime. Hence skipping the data which is already read in previous iterations to improve the parsing performance. https://bugzilla.gnome.org/show_bug.cgi?id=740058
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/* GStreamer PNG Parser
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* Copyright (C) <2013> Collabora Ltd
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* @author Olivier Crete <olivier.crete@collabora.com>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_PNG_PARSE_H__
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#define __GST_PNG_PARSE_H__
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#include <gst/gst.h>
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#include <gst/base/gstadapter.h>
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#include <gst/base/gstbaseparse.h>
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G_BEGIN_DECLS
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#define GST_TYPE_PNG_PARSE \
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(gst_png_parse_get_type())
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#define GST_PNG_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PNG_PARSE,GstPngParse))
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#define GST_PNG_PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PNG_PARSE,GstPngParseClass))
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#define GST_IS_PNG_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PNG_PARSE))
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#define GST_IS_PNG_PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PNG_PARSE))
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GType gst_png_parse_get_type (void);
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typedef struct _GstPngParse GstPngParse;
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typedef struct _GstPngParseClass GstPngParseClass;
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struct _GstPngParse
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{
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GstBaseParse baseparse;
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guint width;
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guint height;
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guint32 skip_length;
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gboolean sent_codec_tag;
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};
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struct _GstPngParseClass
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{
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GstBaseParseClass parent_class;
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};
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G_END_DECLS
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#endif
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