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/* 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_JPEG_DEC_H__
#define __GST_JPEG_DEC_H__
#include <setjmp.h>
#include <gst/gst.h>
/* this is a hack hack hack to get around jpeglib header bugs... */
#ifdef HAVE_STDLIB_H
# undef HAVE_STDLIB_H
#endif
#include <jpeglib.h>
G_BEGIN_DECLS
#define GST_TYPE_JPEG_DEC \
(gst_jpeg_dec_get_type())
#define GST_JPEG_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_JPEG_DEC,GstJpegDec))
#define GST_JPEG_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_JPEG_DEC,GstJpegDecClass))
#define GST_IS_JPEG_DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_JPEG_DEC))
#define GST_IS_JPEG_DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_JPEG_DEC))
typedef struct _GstJpegDec GstJpegDec;
typedef struct _GstJpegDecClass GstJpegDecClass;
struct GstJpegDecErrorMgr {
struct jpeg_error_mgr pub; /* public fields */
jmp_buf setjmp_buffer;
};
struct GstJpegDecSourceMgr {
struct jpeg_source_mgr pub; /* public fields */
GstJpegDec *dec;
};
/* Can't use GstBaseTransform, because GstBaseTransform
* doesn't handle the N buffers in, 1 buffer out case,
* but only the 1-in 1-out case */
struct _GstJpegDec {
GstElement element;
/* pads */
GstPad *sinkpad;
GstPad *srcpad;
GstBuffer *tempbuf;
/* TRUE if each input buffer contains a whole jpeg image */
gboolean packetized;
/* the (expected) timestamp of the next frame */
guint64 next_ts;
GstSegment segment;
/* TRUE if the next output buffer should have the DISCONT flag set */
gboolean discont;
/* QoS stuff *//* with LOCK */
gdouble proportion;
GstClockTime earliest_time;
/* video state */
gint framerate_numerator;
gint framerate_denominator;
/* negotiated state */
gint caps_framerate_numerator;
gint caps_framerate_denominator;
gint caps_width;
gint caps_height;
gint outsize;
/* temp space for samples */
gboolean direct;
guchar **scanarray[3];
/* properties */
gint idct_method;
struct jpeg_decompress_struct cinfo;
struct GstJpegDecErrorMgr jerr;
struct GstJpegDecSourceMgr jsrc;
};
struct _GstJpegDecClass {
GstElementClass parent_class;
};
GType gst_jpeg_dec_get_type(void);
G_END_DECLS
#endif /* __GST_JPEG_DEC_H__ */
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