gstreamer/gst/deinterlace/gstdeinterlace.h
Robert Swain 6607cdcc08 deinterlace: Simplify setcaps
The current code never uses upstream negotiation so the code can be
significantly simplified.
2011-02-23 13:09:19 +01:00

148 lines
3.9 KiB
C

/*
* GStreamer
* Copyright (C) 2005 Martin Eikermann <meiker@upb.de>
* Copyright (C) 2008-2010 Sebastian Dröge <slomo@collabora.co.uk>
*
* 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_DEINTERLACE_H__
#define __GST_DEINTERLACE_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include "gstdeinterlacemethod.h"
G_BEGIN_DECLS
#define GST_TYPE_DEINTERLACE \
(gst_deinterlace_get_type())
#define GST_DEINTERLACE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DEINTERLACE,GstDeinterlace))
#define GST_DEINTERLACE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DEINTERLACE,GstDeinterlace))
#define GST_IS_DEINTERLACE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DEINTERLACE))
#define GST_IS_DEINTERLACE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DEINTERLACE))
typedef struct _GstDeinterlace GstDeinterlace;
typedef struct _GstDeinterlaceClass GstDeinterlaceClass;
#define GST_DEINTERLACE_MAX_FIELD_HISTORY 10
typedef enum
{
GST_DEINTERLACE_TOMSMOCOMP,
GST_DEINTERLACE_GREEDY_H,
GST_DEINTERLACE_GREEDY_L,
GST_DEINTERLACE_VFIR,
GST_DEINTERLACE_LINEAR,
GST_DEINTERLACE_LINEAR_BLEND,
GST_DEINTERLACE_SCALER_BOB,
GST_DEINTERLACE_WEAVE,
GST_DEINTERLACE_WEAVE_TFF,
GST_DEINTERLACE_WEAVE_BFF
} GstDeinterlaceMethods;
typedef enum
{
GST_DEINTERLACE_ALL, /* All (missing data is interp.) */
GST_DEINTERLACE_TF, /* Top Fields Only */
GST_DEINTERLACE_BF /* Bottom Fields Only */
} GstDeinterlaceFields;
typedef enum
{
GST_DEINTERLACE_LAYOUT_AUTO,
GST_DEINTERLACE_LAYOUT_TFF,
GST_DEINTERLACE_LAYOUT_BFF
} GstDeinterlaceFieldLayout;
typedef enum {
GST_DEINTERLACE_MODE_AUTO,
GST_DEINTERLACE_MODE_INTERLACED,
GST_DEINTERLACE_MODE_DISABLED
} GstDeinterlaceMode;
struct _GstDeinterlace
{
GstElement parent;
GstPad *srcpad, *sinkpad;
/* <private> */
GstDeinterlaceMode mode;
GstDeinterlaceFieldLayout field_layout;
GstDeinterlaceFields fields;
GstDeinterlaceMethods method_id; /* current state (differs when flushing) */
GstDeinterlaceMethods user_set_method_id; /* property value */
GstDeinterlaceMethod *method;
GstVideoFormat format;
gint width, height; /* frame width & height */
guint frame_size; /* frame size in bytes */
gint fps_n, fps_d; /* frame rate */
gboolean interlaced; /* is input interlaced? */
gboolean passthrough;
GstClockTime field_duration; /* Duration of one field */
/* The most recent pictures
PictureHistory[0] is always the most recent.
Pointers are NULL if the picture in question isn't valid, e.g. because
the program just started or a picture was skipped.
*/
GstDeinterlaceField field_history[GST_DEINTERLACE_MAX_FIELD_HISTORY];
guint history_count;
/* Set to TRUE if we're in still frame mode,
i.e. just forward all buffers
*/
gboolean still_frame_mode;
/* Last buffer that was pushed in */
GstBuffer *last_buffer;
/* Current segment */
GstSegment segment;
/* QoS stuff */
gdouble proportion;
GstClockTime earliest_time;
GstCaps *request_caps;
gboolean reconfigure;
GstDeinterlaceMode new_mode;
GstDeinterlaceFields new_fields;
};
struct _GstDeinterlaceClass
{
GstElementClass parent_class;
};
GType gst_deinterlace_get_type (void);
G_END_DECLS
#endif /* __GST_DEINTERLACE_H__ */