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00e08a3f6e
Original commit message from CVS: * ext/libpng/gstpngdec.c: (gst_pngdec_init), (user_info_callback), (buffer_clip), (user_end_callback), (gst_pngdec_chain), (gst_pngdec_sink_event), (gst_pngdec_change_state): * ext/libpng/gstpngdec.h: Implement buffer clipping/dropping using GstSegment. This provides accurate seeking.
82 lines
2 KiB
C
82 lines
2 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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_PNGDEC_H__
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#define __GST_PNGDEC_H__
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#include <gst/gst.h>
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#include <png.h>
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G_BEGIN_DECLS
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#define GST_TYPE_PNGDEC (gst_pngdec_get_type())
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#define GST_PNGDEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PNGDEC,GstPngDec))
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#define GST_PNGDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PNGDEC,GstPngDecClass))
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#define GST_IS_PNGDEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PNGDEC))
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#define GST_IS_PNGDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PNGDEC))
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typedef struct _GstPngDec GstPngDec;
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typedef struct _GstPngDecClass GstPngDecClass;
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struct _GstPngDec
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{
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GstElement element;
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GstPad *sinkpad, *srcpad;
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gboolean need_newsegment;
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/* Progressive */
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GstBuffer *buffer_out;
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GstFlowReturn ret;
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png_uint_32 rowbytes;
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/* Pull range */
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gint offset;
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png_structp png;
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png_infop info;
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png_infop endinfo;
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gboolean setup;
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gint width;
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gint height;
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gint bpp;
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gint color_type;
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gint fps_n;
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gint fps_d;
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/* Chain */
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gboolean framed;
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GstClockTime in_timestamp;
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GstClockTime in_duration;
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GstSegment *segment;
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};
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struct _GstPngDecClass
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{
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GstElementClass parent_class;
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};
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GType gst_pngdec_get_type(void);
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G_END_DECLS
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#endif /* __GST_PNGDEC_H__ */
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