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/* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
*
* 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_H264_PICTURE_H__
#define __GST_H264_PICTURE_H__
#include <gst/codecs/codecs-prelude.h>
#include <gst/codecparsers/gsth264parser.h>
#include <gst/video/video.h>
G_BEGIN_DECLS
#define GST_TYPE_H264_PICTURE (gst_h264_picture_get_type())
#define GST_IS_H264_PICTURE(obj) (GST_IS_MINI_OBJECT_TYPE(obj, GST_TYPE_H264_PICTURE))
#define GST_H264_PICTURE(obj) ((GstH264Picture *)obj)
#define GST_H264_PICTURE_CAST(obj) (GST_H264_PICTURE(obj))
typedef struct _GstH264Slice GstH264Slice;
typedef struct _GstH264Picture GstH264Picture;
/* As specified in A.3.1 h) and A.3.2 f) */
#define GST_H264_DPB_MAX_SIZE 16
/**
* GST_H264_PICTURE_IS_REF:
* @picture: a #GstH264Picture
*
* Check whether @picture is used for short-term or long-term reference
*
* Since: 1.20
*/
#define GST_H264_PICTURE_IS_REF(picture) \
((picture)->ref != GST_H264_PICTURE_REF_NONE)
/**
* GST_H264_PICTURE_IS_SHORT_TERM_REF:
* @picture: a #GstH264Picture
*
* Check whether @picture is used for short-term reference
*
* Since: 1.20
*/
#define GST_H264_PICTURE_IS_SHORT_TERM_REF(picture) \
((picture)->ref == GST_H264_PICTURE_REF_SHORT_TERM)
/**
* GST_H264_PICTURE_IS_LONG_TERM_REF:
* @picture: a #GstH264Picture
*
* Check whether @picture is used for long-term reference
*
* Since: 1.20
*/
#define GST_H264_PICTURE_IS_LONG_TERM_REF(picture) \
((picture)->ref == GST_H264_PICTURE_REF_LONG_TERM)
/**
* GST_H264_PICTURE_IS_FRAME:
* @picture: a #GstH264Picture
*
* Check whether @picture is a frame (not a field picture)
*
* Since: 1.20
*/
#define GST_H264_PICTURE_IS_FRAME(picture) \
((picture)->field == GST_H264_PICTURE_FIELD_FRAME)
struct _GstH264Slice
{
GstH264SliceHdr header;
/* parsed nal unit (doesn't take ownership of raw data) */
GstH264NalUnit nalu;
};
typedef enum
{
GST_H264_PICTURE_FIELD_FRAME,
GST_H264_PICTURE_FIELD_TOP_FIELD,
GST_H264_PICTURE_FIELD_BOTTOM_FIELD,
} GstH264PictureField;
/**
* GstH264PictureReference:
* @GST_H264_PICTURE_REF_NONE: Not used for reference picture
* @GST_H264_PICTURE_REF_SHORT_TERM: Used for short-term reference picture
* @GST_H264_PICTURE_REF_LONG_TERM: Used for long-term reference picture
*
* Since: 1.20
*/
typedef enum
{
GST_H264_PICTURE_REF_NONE = 0,
GST_H264_PICTURE_REF_SHORT_TERM,
GST_H264_PICTURE_REF_LONG_TERM,
} GstH264PictureReference;
struct _GstH264Picture
{
/*< private >*/
GstMiniObject parent;
GstH264SliceType type;
/* From GstVideoCodecFrame */
guint32 system_frame_number;
guint8 pic_order_cnt_type; /* SPS */
gint32 top_field_order_cnt;
gint32 bottom_field_order_cnt;
gint pic_order_cnt;
gint pic_order_cnt_msb;
gint pic_order_cnt_lsb;
gint delta_pic_order_cnt_bottom;
gint delta_pic_order_cnt0;
gint delta_pic_order_cnt1;
gint pic_num;
gint long_term_pic_num;
gint frame_num;
gint frame_num_offset;
gint frame_num_wrap;
gint long_term_frame_idx;
gint nal_ref_idc;
gboolean idr;
gint idr_pic_id;
GstH264PictureReference ref;
gboolean needed_for_output;
gboolean mem_mgmt_5;
gboolean nonexisting;
GstH264PictureField field;
GstH264DecRefPicMarking dec_ref_pic_marking;
/* For interlaced decoding */
gboolean second_field;
GstH264Picture * other_field;
GstVideoBufferFlags buffer_flags;
gpointer user_data;
GDestroyNotify notify;
};
GST_CODECS_API
GType gst_h264_picture_get_type (void);
GST_CODECS_API
GstH264Picture * gst_h264_picture_new (void);
static inline GstH264Picture *
gst_h264_picture_ref (GstH264Picture * picture)
{
return (GstH264Picture *) gst_mini_object_ref (GST_MINI_OBJECT_CAST (picture));
}
static inline void
gst_h264_picture_unref (GstH264Picture * picture)
{
gst_mini_object_unref (GST_MINI_OBJECT_CAST (picture));
}
static inline gboolean
gst_h264_picture_replace (GstH264Picture ** old_picture,
GstH264Picture * new_picture)
{
return gst_mini_object_replace ((GstMiniObject **) old_picture,
(GstMiniObject *) new_picture);
}
static inline void
gst_h264_picture_clear (GstH264Picture ** picture)
{
if (picture && *picture) {
gst_h264_picture_unref (*picture);
*picture = NULL;
}
}
GST_CODECS_API
void gst_h264_picture_set_user_data (GstH264Picture * picture,
gpointer user_data,
GDestroyNotify notify);
GST_CODECS_API
gpointer gst_h264_picture_get_user_data (GstH264Picture * picture);
/*******************
* GstH264Dpb *
*******************/
typedef struct _GstH264Dpb GstH264Dpb;
GST_CODECS_API
GstH264Dpb * gst_h264_dpb_new (void);
GST_CODECS_API
void gst_h264_dpb_set_max_num_frames (GstH264Dpb * dpb,
gint max_num_frames);
GST_CODECS_API
gint gst_h264_dpb_get_max_num_frames (GstH264Dpb * dpb);
GST_CODECS_API
void gst_h264_dpb_set_interlaced (GstH264Dpb * dpb,
gboolean interlaced);
GST_CODECS_API
gboolean gst_h264_dpb_get_interlaced (GstH264Dpb * dpb);
GST_CODECS_API
void gst_h264_dpb_free (GstH264Dpb * dpb);
GST_CODECS_API
void gst_h264_dpb_clear (GstH264Dpb * dpb);
GST_CODECS_API
void gst_h264_dpb_add (GstH264Dpb * dpb,
GstH264Picture * picture);
GST_CODECS_API
void gst_h264_dpb_delete_unused (GstH264Dpb * dpb);
GST_CODECS_API
gint gst_h264_dpb_num_ref_frames (GstH264Dpb * dpb);
GST_CODECS_API
void gst_h264_dpb_mark_all_non_ref (GstH264Dpb * dpb);
GST_CODECS_API
GstH264Picture * gst_h264_dpb_get_short_ref_by_pic_num (GstH264Dpb * dpb,
gint pic_num);
GST_CODECS_API
GstH264Picture * gst_h264_dpb_get_long_ref_by_long_term_pic_num (GstH264Dpb * dpb,
gint long_term_pic_num);
GST_CODECS_API
GstH264Picture * gst_h264_dpb_get_lowest_frame_num_short_ref (GstH264Dpb * dpb);
GST_CODECS_API
void gst_h264_dpb_get_pictures_short_term_ref (GstH264Dpb * dpb,
gboolean include_non_existing,
gboolean include_second_field,
GArray * out);
GST_CODECS_API
void gst_h264_dpb_get_pictures_long_term_ref (GstH264Dpb * dpb,
gboolean include_second_field,
GArray * out);
GST_CODECS_API
GArray * gst_h264_dpb_get_pictures_all (GstH264Dpb * dpb);
GST_CODECS_API
GstH264Picture * gst_h264_dpb_get_picture (GstH264Dpb * dpb,
guint32 system_frame_number);
GST_CODECS_API
gint gst_h264_dpb_get_size (GstH264Dpb * dpb);
GST_CODECS_API
gboolean gst_h264_dpb_needs_bump (GstH264Dpb * dpb,
guint32 max_num_reorder_frames,
gboolean low_latency);
GST_CODECS_API
GstH264Picture * gst_h264_dpb_bump (GstH264Dpb * dpb,
gboolean drain);
GST_CODECS_API
gboolean gst_h264_dpb_perform_memory_management_control_operation (GstH264Dpb * dpb,
GstH264RefPicMarking *ref_pic_marking,
GstH264Picture * picture);
/* Internal methods */
void gst_h264_picture_set_reference (GstH264Picture * picture,
GstH264PictureReference reference,
gboolean other_field);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstH264Picture, gst_h264_picture_unref)
G_END_DECLS
#endif /* __GST_H264_PICTURE_H__ */
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