mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 21:28:45 +00:00
9be159b32c
In a number of cases it is necessary to flush the field history by performing 'degraded' deinterlacing - that is, using the user-chosen method for as many fields as possible, then using vfir for as long as there are >= 2 fields remaining in the history, then using linear for the last field. This should avoid losing fields being kept for history for example at EOS. This may address part of #633294
152 lines
4 KiB
C
152 lines
4 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;
|
|
|
|
/* Upstream negotiation stuff */
|
|
GstCaps *sink_caps;
|
|
GstCaps *src_caps;
|
|
|
|
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__ */
|