gstreamer/ext/mpeg2dec/gstmpeg2dec.h

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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_MPEG2DEC_H__
#define __GST_MPEG2DEC_H__
#include <gst/gst.h>
#include <mpeg2.h>
G_BEGIN_DECLS
#define GST_TYPE_MPEG2DEC \
(gst_mpeg2dec_get_type())
#define GST_MPEG2DEC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG2DEC,GstMpeg2dec))
#define GST_MPEG2DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG2DEC,GstMpeg2dec))
#define GST_IS_MPEG2DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG2DEC))
#define GST_IS_MPEG2DEC_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG2DEC))
#define MPEGTIME_TO_GSTTIME(time) (((time) * (GST_MSECOND/10)) / 9LL)
#define GSTTIME_TO_MPEGTIME(time) (((time) * 9LL) / (GST_MSECOND/10))
typedef struct _GstMpeg2dec GstMpeg2dec;
typedef struct _GstMpeg2decClass GstMpeg2decClass;
typedef enum
{
MPEG2DEC_FORMAT_NONE,
MPEG2DEC_FORMAT_I420,
MPEG2DEC_FORMAT_YV12,
} Mpeg2decFormat;
typedef enum
{
MPEG2DEC_DISC_NONE = 0,
MPEG2DEC_DISC_NEW_PICTURE,
MPEG2DEC_DISC_NEW_KEYFRAME,
} DiscontState;
struct _GstMpeg2dec {
GstElement element;
/* pads */
GstPad *sinkpad,
*srcpad,
*userdatapad;
GstBufferPool *peerpool;
mpeg2dec_t *decoder;
gboolean closed;
gboolean have_fbuf;
/* the timestamp of the next frame */
DiscontState discont_state;
gint64 next_time;
gint64 segment_start;
gint64 segment_end;
/* video state */
Mpeg2decFormat format;
gint width;
gint height;
gint pixel_width;
gint pixel_height;
gint frame_rate_code;
gint64 total_frames;
gint64 frame_period;
gboolean need_sequence;
GstCaps *streaminfo;
GstEvent *pending_event;
GstIndex *index;
gint index_id;
};
struct _GstMpeg2decClass {
GstElementClass parent_class;
};
GType gst_mpeg2dec_get_type(void);
G_END_DECLS
#endif /* __GST_MPEG2DEC_H__ */