gstreamer/ext/libpng/gstpngdec.h
2012-01-24 18:25:04 +01:00

88 lines
2.1 KiB
C

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_PNGDEC_H__
#define __GST_PNGDEC_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideopool.h>
#include <png.h>
G_BEGIN_DECLS
#define GST_TYPE_PNGDEC (gst_pngdec_get_type())
#define GST_PNGDEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PNGDEC,GstPngDec))
#define GST_PNGDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PNGDEC,GstPngDecClass))
#define GST_IS_PNGDEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PNGDEC))
#define GST_IS_PNGDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PNGDEC))
typedef struct _GstPngDec GstPngDec;
typedef struct _GstPngDecClass GstPngDecClass;
struct _GstPngDec
{
GstElement element;
GstPad *sinkpad, *srcpad;
gboolean need_newsegment;
/* Progressive */
GstBuffer *buffer_out;
GstFlowReturn ret;
/* Pull range */
gint offset;
png_structp png;
png_infop info;
png_infop endinfo;
gboolean setup;
GstVideoInfo vinfo;
gint width;
gint height;
gint color_type;
gint fps_n;
gint fps_d;
GstBufferPool *pool;
/* Chain */
gboolean framed;
GstClockTime in_timestamp;
GstClockTime in_duration;
GstSegment segment;
gboolean image_ready;
};
struct _GstPngDecClass
{
GstElementClass parent_class;
};
GType gst_pngdec_get_type(void);
G_END_DECLS
#endif /* __GST_PNGDEC_H__ */