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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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_MPEG2DEC_H__
#define __GST_MPEG2DEC_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideodecoder.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,GstMpeg2decClass))
#define GST_IS_MPEG2DEC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG2DEC))
#define GST_IS_MPEG2DEC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG2DEC))
#define MPEG_TIME_TO_GST_TIME(time) ((time) == -1 ? -1 : ((time) * (GST_MSECOND/10)) / G_GINT64_CONSTANT(9))
#define GST_TIME_TO_MPEG_TIME(time) ((time) == -1 ? -1 : ((time) * G_GINT64_CONSTANT(9)) / (GST_MSECOND/10))
typedef struct _GstMpeg2dec GstMpeg2dec;
typedef struct _GstMpeg2decClass GstMpeg2decClass;
typedef enum
{
MPEG2DEC_DISC_NONE = 0,
MPEG2DEC_DISC_NEW_PICTURE,
MPEG2DEC_DISC_NEW_KEYFRAME
} DiscontState;
struct _GstMpeg2dec {
GstVideoDecoder element;
mpeg2dec_t *decoder;
const mpeg2_info_t *info;
/* Buffer lifetime management */
GList *buffers;
/* FIXME This should not be necessary. It is used to prevent image
* corruption when the parser does not behave the way it should.
* See https://bugzilla.gnome.org/show_bug.cgi?id=674238
*/
DiscontState discont_state;
/* video state */
GstVideoCodecState *input_state;
GstVideoInfo decoded_info;
GstVideoAlignment valign;
GstBufferPool * downstream_pool;
gboolean need_alignment;
guint8 *dummybuf[4];
};
struct _GstMpeg2decClass {
GstVideoDecoderClass parent_class;
};
GType gst_mpeg2dec_get_type(void);
G_END_DECLS
#endif /* __GST_MPEG2DEC_H__ */
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