1 /* GStreamer

     2  * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>

     3  *

     4  * This library is free software; you can redistribute it and/or

     5  * modify it under the terms of the GNU Library General Public

     6  * License as published by the Free Software Foundation; either

     7  * version 2 of the License, or (at your option) any later version.

     8  *

     9  * This library is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    12  * Library General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU Library General Public

    15  * License along with this library; if not, write to the

    16  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,

    17  * Boston, MA 02111-1307, USA.

    18  */

    19 

    20 

    21 #ifndef __GST_PNGDEC_H__

    22 #define __GST_PNGDEC_H__

    23 

    24 #include <gst/gst.h>

    25 #include <png.h>

    26 

    27 #ifdef __cplusplus

    28 extern "C" {

    29 #endif /* __cplusplus */

    30 

    31 #define GST_TYPE_PNGDEC            (gst_pngdec_get_type())

    32 #define GST_PNGDEC(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PNGDEC,GstPngDec))

    33 #define GST_PNGDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PNGDEC,GstPngDecClass))

    34 #define GST_IS_PNGDEC(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PNGDEC))

    35 #define GST_IS_PNGDEC_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PNGDEC))

    36 

    37 typedef struct _GstPngDec GstPngDec;

    38 typedef struct _GstPngDecClass GstPngDecClass;

    39 

    40 struct _GstPngDec

    41 {

    42   GstElement element;

    43 

    44   GstPad *sinkpad, *srcpad;

    45 

    46   gboolean need_newsegment;

    47 

    48   /* Progressive */

    49   GstBuffer *buffer_out;

    50   GstFlowReturn ret;

    51   png_uint_32 rowbytes;

    52   

    53   /* Pull range */

    54   gint offset;

    55 

    56   png_structp png;

    57   png_infop info;

    58   png_infop endinfo;

    59   gboolean setup;

    60 

    61   gint width;

    62   gint height;

    63   gint bpp;

    64   gint color_type;

    65   gint fps_n;

    66   gint fps_d;

    67 

    68   /* Chain */

    69   gboolean framed;

    70   GstClockTime in_timestamp;

    71   GstClockTime in_duration;

    72 

    73   GstSegment segment;

    74   gboolean image_ready;

    75 };

    76 

    77 struct _GstPngDecClass

    78 {

    79   GstElementClass parent_class;

    80 };

    81 

    82 GType gst_pngdec_get_type(void);

    83 

    84 #ifdef __cplusplus

    85 }

    86 #endif /* __cplusplus */

    87 

    88 

    89 #endif /* __GST_PNGDEC_H__ */